PREPARATION METHOD OF OPTICAL COLORFUL POLYESTER FILM USING MICROWAVE TECHNIQUE

A process for preparing an optical colored polyester film using microwave technique comprises the following steps: microwave dyeing treatment by passing a polyester film through a disperse dye suspension with steady water phase in a dye-pool comprising a microwave generator; rinsing with water; rinsing with solvent; finally drying treatment, and then uniform optical colored films with various colors are obtained. The optical colored films are used as optical filters or optical protection films and as glass window films for automobile, and domestic and office windows. 1. A process for preparing an optical colored polyester film using microwave technique , characterized by comprising the following steps:(1) conveying a non-colored polyester film into a disperse dye suspension with steady water phase and simultaneously dyeing at the heating temperature of 80-85° C. for 10-120 seconds using microwave technique;(2) rinsing the colored film with water solution containing the mass ratio of 0.1-5 percent of surfactant till a thickener on the surface of the film is thoroughly rinsed off;(3) re-rinsing the colored film after water rinsing with a solvent which includes ethanol, acetone or ethyl acetate; and(4) drying the colored film after solvent rinsing at the temperature of 130-170° C. for 10-120 seconds.2. The process according to claim 1 , characterized in that the disperse dye suspension with steady water phase comprises a mixture system containing the following components by mass percentage: 50-90% of water claim 1 , 0.1-5% of disperse dye claim 1 , 0.1-0.5% of PH regulator and 8-50% of dye carrier.3. The process according to claim 1 , characterized in that the water in the disperse dye suspension with steady water phase is purified water with the resistance of more than 10ohm.4. The process according to claim 1 , characterized in that the disperse dye is a mixture of any one disperse dye or at least two disperse dyes directly dyeing polyester.5. The process according ...

CONTROL CIRCUIT AND METHOD FOR AUDIBLE NOISE SUPPRESSION IN A POWER CONVERTER

A control circuit is configured for controlling a power switch to regulate an output of a power converter. The control circuit is configured to increase a switching frequency of the power switch when a first signal representing a magnitude of the power converter is below a first output level. In some embodiment, the first output level is selected such that when the first signal is below the first output level, the power converter may generate audible noise. In an embodiment, when the first signal is above the first output level, the control circuit is configured to turn off the power switch when a second signal representing a current in the power switch is above a first reference level. On the other hand, when the first signal is below the first output level, the control circuit is configured to turn off the power switch if the second signal reaches a lower reference level. 1. A control circuit for controlling a power switch to regulate an output of a power converter , wherein the control circuit is configured to increase a switching frequency of the power switch when a first signal representing a magnitude of the output of the power converter is below a first output level.2. The control circuit of claim 1 , wherein claim 1 , the first output level is selected such that when the first signal is below the first output level claim 1 , the power converter may generate audible noise.3. The control circuit of claim 1 ,wherein, when the first signal representing the magnitude of the output of the power converter is above the first output level, the control circuit is configured to turn off the power switch if a second signal representing a current in the power switch is above a first reference level; andwherein, when the first signal is below the first output level, the control circuit is configured to turn off the power switch if the second signal is above a second reference level.4. The control circuit of claim 1 , further comprising a first circuit for generating a ...

CIRCUITS AND METHODS FOR INCREASING OUTPUT OF SWITCH MODE POWER SUPPLY

A switching mode power supply (SMPS) includes a transformer having a primary winding for coupling to an input power source, a secondary winding for providing an output voltage of the SMPS, and an auxiliary winding. The SMPS also has a power transistor coupled to the primary winding and a primary side control circuit coupled to the auxiliary winding and the power transistor. The primary side control circuit is configured to regulate the output of the SMPS by controlling the power switch in response to a feedback voltage signal that is representative of an output of the SMPS. The SMPs also has a secondary-side control circuit coupled to the secondary winding and being configured to cause the output voltage of the SMPS to discharge when the output voltage of the SMPS is higher than a first reference voltage. 1. A switching mode power supply (SMPS) , comprising: a primary winding for coupling to an input power source;', 'a secondary winding for providing an output voltage of the SMPS; and', 'an auxiliary winding;, 'a transformer havinga power transistor coupled to the primary winding;a primary side control circuit coupled to the auxiliary winding and the power transistor, the primary side control circuit being configured to regulate the output of the SMPS by controlling the power switch in response to a feedback voltage signal that is representative of an output of the SMPS; anda secondary-side control circuit coupled to the secondary winding and being configured to cause the output voltage of the SMPS to discharge when the output voltage of the SMPS is higher than a first reference voltage.2. The switching mode power supply of claim 1 , wherein the secondary-side control circuit comprises a discharge control circuit having a power supply terminal coupled to the output voltage of the SMPS claim 1 , the discharge control circuit being configured to issue a discharge signal.3. The switching mode power supply of claim 2 , wherein the discharge control circuit is configured ...

Insecticidal protein, gene encoding the same and uses thereof

The invention relates to an insecticidal protein, its gene encoding and the uses thereof. The protein comprises: (a) a protein consisting of an amino acid sequence shown by SEQ ID NO:2 or a sequence of amino acid residuses at positions 1 to 640 thereof; or (b) a protein derived from (a) by substitution, deletion, or addition of one or more amino acid residuses of the amino acid sequences in (a), and having insecticidal activity; or (c) a protein generated by the expression of nucleic acid molecules containing a sequence of amino acid residuses at the positions 1 to 1920 of SEQ ID NO:1; or (d) a protein generated by the expression of nucleic acid molecules containing a complementary sequence that hybridized with the sequence of nucleotides at the positions 1 to 1920 of SEQ ID NO:1 under stringent conditions. The protein has high expression level and strong toxicity against pests.

METHOD FOR CHANGING FILLER POLLUTANT ACCUMULATION OF CONSTRUCTED WETLAND

A method for changing filler pollutant accumulation of a constructed wetland belongs to the field of environmental protection engineering. A coupling device of a microbial fuel cell and a constructed wetland is constructed by using active carbon as a constructed wetland filler, and pond sewage enters into the constructed wetland from the top of the device in an intermittent mode. A titanium mesh is taken as an electron collector for packaging a cathode of the active carbon filler by using the characteristic that electrons are collected by the titanium mesh in a concentrated mode, after stable operation for a period of time, active carbon close to a water surface and active carbon close to the bottom of the titanium mesh are taken out for carrying out specific surface area and biomass measurement, and the accumulation distribution condition of filler pollutants inside the constructed wetland is analyzed. 112552347. A method for changing filler pollutant accumulation of a constructed wetland , wherein a coupling system of a microbial fuel cell and a constructed wetland is firstly constructed , and the coupling system comprises an anode , an electron collection filler cathode , a constructed wetland emergent aquatic plant and an external circuit; the anode is a graphite plate () , and is buried in zeolite (); the electron collection filler cathode is a titanium mesh () , and the titanium mesh () is square with an opening at the top thereof and is positioned above the zeolite () for packaging a filler layer; the filler layer is filled with columnar active carbon () particles; a titanium mesh tube () filled with active carbon particles is placed at the middle position of the filler layer and is used for sampling and measuring pollution , and the constructed wetland emergent aquatic plant is planted on the filler layer; the external circuit is connected with a titanium wire , the anode and the cathode are connected , and a closed loop is formed by a loaded resistor () , ...

DIGITAL CLAMP METER AND AUTOMATIC MEASUREMENT METHOD THEREOF

A digital clamp meter includes a common input, a voltage/resistance input, a current transformer, a voltage/resistance measuring circuit, an AC measuring circuit, a MPU and a displayer. A detecting input of the voltage/resistance measuring circuit is connected to the voltage/resistance input, a detecting output of the voltage/resistance measuring circuit is connected to a signal input of the MPU, and a controlled terminal of the voltage/resistance measuring circuit is connected to a controlling output of the MPU. The signal output of the MPU is connected to the displayer. The common input is grounded. A detecting input of the AC measuring circuit is connected to a secondary winding of the current transformer, a detecting output of the AC measuring circuit is connected to the signal input of the MPU, and a controlled terminal of the AC measuring circuit is connected to the controlling output of the MPU. 1. A digital clamp meter , comprising:a common input;a voltage/resistance input cooperating with the common input for inputting voltage to be measured or resistance to be measured;a voltage/resistance measuring circuit for detecting and processing the voltage to be measured or resistance to be measured;a current transformer for induction detecting when the measured signal is alternating current;an AC measuring circuit for detecting and processing induction current generated in a secondary winding of the current transformer;a displayer for displaying values of measured voltage, resistance or alternating current; anda MPU for controlling working of the voltage/resistance measuring circuit and processing outputting signal of the voltage/resistance measuring circuit, controlling the displayer to display value of measured voltage or resistance, controlling working of the AC measuring circuit and processing outputting signal of the AC measuring circuit, and controlling the displayer to display measured AC value;wherein a detecting input of the voltage/resistance measuring ...

ROAD EVENT DETECTION METHOD, APPARATUS, DEVICE AND STORAGE MEDIUM

The present application discloses a road event detection method, an apparatus, a device and a storage medium, and relates to artificial intelligence, big data, intelligent transportation, automatic driving, and cloud computing technologies in data processing. A specific implementation is that: by obtaining road images collected and returned by multiple vehicles within a historical period, and performing image processing on single-frame road images to determine road events included in the road images, types and/or locations of the road events can be located accurately; further, by performing clustering on road event data of multiple frames of road images including the road events to obtain all road events occurring within the historical period and road event information, all road events occurring within the historical period can be determined accurately, and the types and/or the locations of the road events can be determined accurately, thereby improving the accuracy of road event detection. 1. A road event detection method , comprising:obtaining road images collected and returned by multiple vehicles within a historical period;performing image processing on the road images to determine road events comprised in the road images;performing multi-frame data clustering on all road images comprising the road events to determine a road event occurring within the historical period, wherein the road event has road event information, and the road event information comprises an event type and/or event location information; andupdating map data according to the road event information of each road event.2. The method according to claim 1 , wherein the obtaining the road images collected and returned by multiple vehicles within the historical period comprises:sending data return tasks to the multiple vehicles, wherein the data return tasks are used to instruct the multiple vehicles to collect and return the road images according to a collection rule, wherein the collection rule ...

PLANAR HEATING STRUCTURE

A planar heating structure is disclosed. The planar heating structure includes a glass substrate layer, a nanometallic transparent conductive layer, and a first passivation layer. The nanometallic transparent conductive layer is disposed on the glass substrate layer and receives a voltage to generate heat energy. The first passivation layer is disposed on the nanometallic transparent conductive layer and completely covers the nanometallic transparent conductive layer. 1. A planar heating structure , comprising:a glass substrate layer;a nanometallic transparent conductive layer having a plurality of metal nanowires disposed on the glass substrate layer and receiving electrical energy to convert the electrical energy into heat energy, wherein more than 92% of the metal nanowires have a length greater than 5 μm;a first passivation layer disposed on the nanometallic transparent conductive layer and completely covering the nanometallic transparent conductive layer, wherein a thermal conductivity of the first passivation layer is lower than that of the glass substrate layer so that most of the heat energy converted from the electrical energy is discharged from the glass substrate layer in a conductive manner or a radiating manner; andtwo electrodes located on two opposite sides of the planar heating structure having a shortest relative distance, a voltage being applied between the two electrodes,wherein, when the voltage is substantially 40 volts and when per square centimeter of a surface the planar heating structure consumes a power of 0.07 W, the planar heating structure has a temperature rise of 12° C.±1° C. within 2 minutes.2. The planar heating structure of claim 1 , wherein an aspect ratio of the metal nanowires is between 10 and 100.3. The planar heating structure of claim 1 , wherein a threshold surface loading level of the nanometallic transparent conductive layer is between 0.05 μg/cmand 10 μg/cm.4. The planar heating structure of claim 1 , wherein the planar ...

SELF-FUSED GRAPHENE FIBER AND METHOD OF PREPARING THE SAME

Disclosed in the present disclosure are a self-fused graphene fiber and a method of preparing the same. Dried graphene oxide fibers are soaked in a solvent to swell and then the fibers are pulled out and coalesced. After being dried, the graphene oxide fibers are fused together, and then are further reduced to obtain a self-fused graphene fiber. The entire self-fusion process can be quickly finished within one minute without adding any additional binder. The operation is simple and time-saving. The process is environmentally friendly; the bond strength is high, and the excellent properties such as outstanding mechanical strength and electrical conductivity of the graphene fibers themselves can be maintained. The present disclosure has great research and application value for further preparation of two-dimensional graphene fabrics or three-dimensional network bulks with excellent performance. 1. A self-fused graphene fiber , wherein the self-fused graphene fiber has a diameter that is greater than or equal to 1 μm and is prepared by fusion of a plurality of graphene fibers , with graphene sheets arranged along an axis , an interlayer spacing of graphene sheets being smaller than or equal to 1 nm , and a density being greater than or equal to 0.8 g/cm; and the surface of the fiber has axial grooves.2. The self-fused graphene fiber according to claim 1 , wherein the self-fused graphene fiber has a diameter that is greater than or equal to 100 μm.3. The self-fused graphene fiber according to claim 1 , wherein the self-fused graphene fiber has a diameter that is greater than or equal to 1000 μm.4. A method of preparing a self-fused graphene fiber claim 1 , comprising steps of:(1) vacuum drying graphene oxide fibers;(2) soaking the dried fibers in a solvent in such a manner that the fibers are fully infiltrated and swelled;(3) pulling out two or more fibers simultaneously from the solvent, the fibers being coalesced at a solvent-air interface under a surface tension of ...

FOUNDATION TREATMENT METHOD FOR PILING FOUNDATION STRUCTURE BY PENETRATING HARDPAN LAYER

A foundation treatment method for piling a foundation structure by penetrating a hardpan layer, i.e., a Deep Slurry Mixing method, comprising following steps: disturbing, by a mechanical device, a location where the foundation structure is to be piled, so that the mechanical device penetrates the hardpan layer of a natural foundation; then injecting clay slurry into the hardpan layer of the natural foundation by a pumping device, an improved foundation is formed after mixing; and piling the foundation structure. The method can change soil property of the original natural foundation, break the hardpan layer, reduce piling resistance of the steel plate cylinder or similar foundation structure, reduce uneven force during the piling process and improve driveability. 1. A foundation treatment method for piling a foundation structure by penetrating a hardpan layer , comprising the following operating steps:step (1) disturbing: disturbing, by a mechanical device, a location where the foundation structure is to be piled, so that the mechanical device penetrates the hardpan layer of a natural foundation;step (2) grouting: injecting clay slurry into the location disturbed in the step (1) by a pumping device;step (3) mixing: mixing the clay slurry in the step (2) with the hardpan layer of the natural foundation by a stirring device to form an improved foundation; andstep (4) piling the foundation structure: embedding the foundation structure into the improved foundation in the step (3) by a vibration equipment.2. The foundation treatment method according to claim 1 , characterized in that claim 1 , the mechanical device in the step (1) is one of a Cement Deep Mixing ship processor claim 1 , a land drilling device and an excavating device.3. The foundation treatment method according to claim 1 , characterized in that claim 1 , the disturbing in the step (1) is one of drilling claim 1 , excavating and chiseling.4. The foundation treatment method according to claim 1 , ...

Method for synthesis of polymer containing multiple epoxy groups

A method for a synthesis of a polymer containing multiple epoxy groups includes steps of: under protection of nitrogen or argon, with a photosensitive free radical initiator under an ultraviolet light irradiation, initiating a mixture of a dithiol compound and alkynyl glycidyl ether or other alkynyl-containing compounds to proceed a thiol-yne polymerization, so as to obtain the polymer. The number of the epoxy groups is able to be adjusted through changing a type of a dithiol monomer, a mixing ratio of the dithiol monomer, and a mixing ratio between the alkynyl glycidyl ether and other alkynyl compounds. The present invention has advantages of: fast reaction, convenient process, easy post-processing, a large number of the epoxy groups, and adjustable and controllable content. The obtained polymer has a wide potential application in fields of coating, adhesive, ink, encapsulating material, resin for composite material, additive, high performance material, function material, and so on. 1under protection of nitrogen or argon, successively adding 1 mole of substance A, 0.5-10 moles of solvent, 0.9-1.1 moles of substance B, and 0.005-0.05 moles of photosensitive free radical initiator into a reactor; irradiating with an ultraviolet light for 0.5-4.0 hours; and, after precipitating, separating, and drying, obtaining the polymer containing the multiple epoxy groups; wherein:the substance A is obtained through mixing at least one member selected from a group consisting of 1,3-propanedithiol, 1,4-butanedithiol, 1,5-pentanedithiol, 1,6-hexanedithiol, 1,8-octanedithiol, 3,6-dioxa-1,8-octanedithiol, bis(2-mercaptoethyl) ether, butylene glycol b is (3-mercaptopropionate), 2,3-dimercapto-1-propanol and 1,4-dithiothreitol in any proportion;the substance B is alkynyl glycidyl ether or a mixture of the alkynyl glycidyl ether and a substance C; and, the substance C is obtained through mixing at least one member selected from a group consisting of 1-octyne, 1-hexyne, undecyne, ...

Programming building block

A programming building block includes an instruction reading building block and an instruction building block. The instruction reading building block reads command instructions in the instruction building block. The command instructions include an instruction for setting a mode, an instruction for setting a behavior in the mode, an instruction for setting a behavior, or an upgrade instruction. A priority is set between the plurality of instructions for setting the mode. Compared with the prior art, the present invention has the advantage that programming can be performed without an electronic display device.

HEAT PUMP SYSTEM, HEAT MANAGEMENT METHOD AND VEHICLE

A heat pump system, a heat management method and a vehicle are provided. The heat pump system includes an integrated heat exchanger integrated with a superconducting liquid flow passage and a refrigerant flow passage. The refrigerant flow passage is provided inside an on-board refrigerant circulation loop and is used for cooling and/or heating to adjust the temperature within a passenger compartment of a vehicle. The superconducting liquid flow passage is in communication with a motor heat dissipating conduit, for absorbing the heat generated by an on board motor and transferring the heat to the integrated heat exchanger by means of phase change heat transfer. The heat pump system can increase the energy utilization rate for the vehicle and reduce the allowable ambient temperature of the heat pump system. 1. A heat pump system , the heat pump system comprising an integrated heat exchanger integrated with a superconducting liquid flow passage and a refrigerant flow passage;wherein the refrigerant flow passage is provided inside an on-board refrigerant circulation loop and is configured for cooling and/or heating to adjust the temperature in a passenger compartment of a vehicle;the superconducting liquid flow passage is in communication with a motor heat dissipating conduit, the motor heat dissipating conduit and the superconducting liquid flow passage are both filled with a superconducting liquid, the superconducting liquid is capable of absorbing the heat generated by an on-board motor during operation, and the heat is transferred to the superconducting liquid flow passage through heat transfer of phase change.2. The heat pump system according to claim 1 , wherein the integrated heat exchanger comprises a plurality of flat tubes claim 1 , the flat tube of the integrated heat exchanger has a double-layer tube structure. the flat tube includes a refrigerant flat tube and a superconducting liquid flat tube sleeved on the outside of the refrigerant flat tube claim 1 , ...

TERMINAL, AND APPARATUS AND METHOD FOR PREVIEWING AN IMAGE

Some embodiments of the application disclose a terminal including a sensor and camera module configured to obtain and update in real time color temperature parameters and automatic exposure parameters of a current scene; and to obtain an image of the current scene upon reception of an instruction for starting a camera; and 1. An apparatus for previewing an image , the apparatus comprises a camera , a memory , and one or more processors , wherein the memory is configured to store one or more computer readable program codes , and the one or more processors are configured to perform the one or more computer readable program codes to perform:obtaining and updating in real time color temperature parameters and automatic exposure parameters of a current scene;obtaining an image of the current scene using the camera upon reception of an instruction for starting the camera; and correcting color temperature and brightness of the obtained image using the color temperature parameters and automatic exposure parameters of the current scene updated in real time; andoutputting the corrected image as a preview image.2. The apparatus for previewing an image according to claim 1 , further comprising a light sensor and a color sensor;wherein, obtaining and updating in real time the color temperature parameters and automatic exposure parameters of the current scene comprises:starting the light sensor and the color sensor; andobtaining brightness information of the current scene using the started light sensor, and updating the automatic exposure parameters of the current scene using the obtained brightness information; and obtaining color information of the current scene using the started color sensor, and updating the color temperature parameters of the current scene using the obtained color information.3. The apparatus for previewing an image according to claim 1 , wherein the camera comprises rear dual camera and a front camera claim 1 , and the obtaining and updating in real time ...

GRAPHENE FIBER AND PREPARTION METHOD THEREOF

A graphene fiber and a preparation method thereof, where the graphene fiber is a composite fiber of metal nanowire doped graphene fiber, and principal components of the composite fiber are graphene and metal nanowires, a mass ratio of metal nanowires is 0.1%-50%, the graphene is in a form of sheet, and both the metal nanowires and graphene sheets are arranged in parallel along an axial direction of the graphene fiber. The metal nanowire doped graphene fiber is a new type of a high performance multi-functional fiber material, which achieves a significant improvement in electrical conductivity of graphene fibers through doping of metal nanowires and meanwhile demonstrates excellent tensile strength and toughness. The metal nanowire doped graphene fiber has great potential application value in a plurality of fields, for example, it is used as a lightweight flexible wire. 1. A graphene fiber , wherein the graphene fiber is a composite fiber of metal nanowire doped graphene fiber , wherein principal components of the composite fiber are graphene and metal nanowires , a mass ratio of metal nanowires is about 0.1%-50% , the graphene is in a form of sheet , and both the metal nanowires and graphene sheets are arranged in parallel along an axial direction of the graphene fiber.2. The graphene fiber according to claim 1 , wherein the mass ratio of metal nanowires is about 0.5%-50%.3. The graphene fiber according to claim 2 , wherein the mass ratio of metal nanowires is about 0.5% claim 2 , 20% claim 2 , or 50%.4. The graphene fiber according to claim 1 , wherein the metal nanowires comprise gold nanowires claim 1 , silver nanowires claim 1 , copper nanowires claim 1 , Pt nanowires claim 1 , iridium nanowires claim 1 , rhodium nanowires claim 1 , Fe nanowires claim 1 , nickel nanowires claim 1 , cobalt nanowires claim 1 , zinc oxide nanowires claim 1 , titanium nanowires claim 1 , and alloy nanowires or hybrid nanowires of these nanowires.5. The graphene fiber according to ...

LITHIUM-ION BATTERY

The present invention provides a lithium-ion battery. The lithium-ion battery includes: a positive electrode plate including a positive current collector and a positive conductive membrane which is formed on the surface of the positive current collector by coating, drying and compacting a positive mixture slurry containing a positive active material, a positive conductive additive and a positive binder; a negative electrode plate including a negative current collector and a negative conductive membrane which is formed on the surface of the negative current collector by coating, drying and compacting a negative mixture slurry containing a negative active material, a negative conductive additive and a negative binder; a separator; an electrolyte; and a packaging foil. The compacted density of the positive conductive membrane is at a range from 3.9 g/cmto 4.4 g/cm; the compacted density of negative conductive membrane is at a range from 1.55 g/cmto 1.8 g/cm; the ratio of the capacity of the negative active material to the capacity of the positive active material CB is at a range from 1 to 1.4. The lithium-ion battery of the present invention can be charged quickly at high rate, with excellent safety performance and cycle performance. 1. A lithium-ion battery includes:a positive electrode including a positive current collector and a positive conductive membrane which is formed on the surface of the positive current collector by coating, drying and compacting a positive mixture slurry containing a positive active material, a positive conductive additive and a positive binder;a negative electrode including a negative current collector and a negative conductive membrane which is formed on the surface of the negative current collector by coating, drying and compacting a negative mixture slurry containing a negative active material, a negative conductive additive and a negative binder;a separator;an electrolyte; anda packaging foil;wherein,{'sup': 3', '3, 'the compacted ...

MINIATURE GRAPHENE AEROGEL DEVICE AND PREPARATION METHOD THEREOF

Disclosed are a preparation method for a graphene aerogel array sensor and use thereof. A miniature graphene aerogel array device is prepared by combining in-situ printing and solvent plasticization and foaming, which has excellent flexibility and stability, and is suitable for use in a variety of scenarios, such as sensors, and energy storage devices, etc. The array sensor provided in the present disclosure exhibites extremely high stability, high accuracy and reliability. Combining with deep machine learning, the array sensor can be endowed with the function of learning and recognition of machine intelligence, thus greatly promoting the development of the next generation of artificial intelligence. 1. A method for preparing a miniature graphene aerogel device having a miniature graphene aerogel unit , the method comprising:printing on a substrate of a device with a graphene oxide solution as an ink,dripping a polar solution containing a foaming agent after solidifying to plasticize and foam the graphene oxide, drying and reducing to obtain a miniature graphene aerogel unit on the substrate of the device.2. The preparation method according to claim 1 , wherein the foaming agent comprises a self-foaming agent or a reactive foaming agent claim 1 , wherein the reactive foaming agent is a foaming agent that reacts with an oxygen-containing functional group of graphene oxide to produce a gas claim 1 , and the self-foaming agent is a foaming agent that decomposes to produce a gas.3. The preparation method according to claim 2 , wherein the reactive foaming agent comprises hydrazine hydrate claim 2 , and a borohydride; and the self-foaming agent comprises a bicarbonate.4. The preparation method according to claim 1 , wherein the polar solution comprises water claim 1 , an organic solvent claim 1 , or a mixed solution of water and an organic solvent.5. The preparation method according to claim 4 , wherein the organic solvent is selected from: dimethylformamide claim 4 , ...

Lamp with Zoom Lens and Zoom Lens

The invention discloses a lamp with a zoom lens, which comprises the zoom lens and a lamp body, the lamp body is connected with the zoom lens, the zoom lens comprises: a rear fixed group, comprising a first biconvex lens; a zooming group, comprising a first concave-convex meniscus lens and a plano-convex lens; a compensating group, comprising a biconcave meniscus lens and a second concave-convex meniscus lens; and a front fixed group, comprising a second biconvex lens. The four groups are sequentially arranged in the direction of an optical axis; and the lamp realizes zooming by movement of the zooming group and the compensating group in the direction of the optical axis. A change of a pattern or a beam size is realized; the number of lenses is reduced; zooming of the zoom lens is realized only by movement of the zooming group and the compensating group. 1. A lamp with a zoom lens , comprising the zoom lens and a lamp body , the lamp body being connected with the zoom lens , and the zoom lens comprising:a rear fixed group, the rear fixed group comprising a first biconvex lens;a zooming group, the zooming group comprising a first concave-convex meniscus lens and a plano-convex lens;a compensating group, the compensating group comprising a biconcave meniscus lens and a second concave-convex meniscus lens; anda front fixed group, the front fixed group comprising a second biconvex lens,wherein the rear fixed group, the zooming group, the compensating group and the front fixed group are sequentially arranged in a direction of an optical axis from a light source surface to a projection surface; andthe lamp realizes zooming by movement of the zooming group and the compensating group comprised in the zoom lens in the direction of the optical axis.2. The lamp with a zoom lens according to claim 1 , wherein the zooming group further comprises a third concave-convex meniscus lens claim 1 , and the third concave-convex meniscus lens is positioned between the first biconvex lens ...

PRODUCTION METHOD OF ELECTRICALLY CONDUCTIVE GRAPHENE COMPOSITE FIBER

A graphene composite fiber includes graphene sheets and a polymer for aggregating the graphene sheets together. The polymer includes either or both of a hyperbranched polymer and polyvinyl alcohol. The graphene sheets and the polymer are stacked on each other to form a layered structure, and the graphene sheets are regularly arranged along an axial direction of the graphene composite fiber. In a production method of the graphene composite fiber, a graphene oxide is used as a raw material, which significantly improves tensile strength of the graphene composite fiber. Addition of the polymer provides good tenacity for the composite fiber. In a spinning process, rotated coagulant is used to increase a tensile force of a gelatinous fiber, so that the gelatinous fiber has high orientation and tacticity, thereby significantly improving strength of an obtained solid fiber. The final reduction process restores electrical conductivity of a graphene fairly well. 1. A graphene composite fiber , comprising:graphene sheets; anda polymer for aggregating the graphene sheets together, wherein the polymer comprises at least one of a hyperbranched polymer and polyvinyl alcohol, the graphene sheets and the polymer are interleaved and stacked to form a layered structure, and the graphene sheets are arranged along an axial direction of the graphene composite fiber.2. The graphene composite fiber according to claim 1 , wherein the hyperbranched polymer comprises one or more of hyperbranched polyester claim 1 , a hyperbranched polyamide claim 1 , and hyperbranched polyglycidyl ether.3. The graphene composite fiber according to claim 1 , wherein the polymer comprises one or two of hyperbranched polyester claim 1 , a hyperbranched polyamide claim 1 , hyperbranched polyglycidyl ether claim 1 , and the polyvinyl alcohol.4. The graphene composite fiber according to claim 1 , wherein the graphene composite fiber has a diameter of 5 to 5000 μm.5. A production method of an electrically conductive ...

IMAGE DISPLAY METHOD AND APPARATUS

Disclosed in embodiments of the present disclosure are a method and an apparatus used for image display. A specific embodiment of the present method comprises: determining a selected time point of a user performing adjustment of playback progress of a target video, the target video comprising a key frame set; determining a target key frame in the key frame set, a difference between a time point corresponding to the target key frame and the selected time point meeting a first pre-determined condition; on the basis of the target key frame, performing decoding of a video frame corresponding to the selected time point, obtaining a decoded video frame; displaying the decoded video frame in a first target display region. The present embodiment increases flexibility of video frame display, and helps increase user positioning and video frame processing effectiveness. 1. A method for displaying an image , comprising:determining a selected time point in a process that a user adjusts a play progress of a target video, wherein the target video comprises a key frame set;determining a target key frame from the key frame set, wherein a difference between a time point corresponding to the target key frame and the selected time point meets a first predetermined condition;decoding a video frame corresponding to the selected time point based on the target key frame to obtain a decoded video frame; anddisplaying the decoded video frame in a first target display region.2. The method according to claim 1 , wherein the determining a selected time point in a process that a user adjusts a play progress of a target video comprises at least one of:determining a current time point as the selected time point when detecting that a control point for adjusting the play progress of the target video stays at the current time point for a time period greater than or equal to a predetermined time period threshold; anddetermining a time point currently corresponding to a control point as the selected ...

Flexible graphene film and preparation method thereof

The present invention discloses a flexible graphene film and a preparation method thereof. The preparation method includes steps of placing a liquid graphene oxide film in a poor solvent, performing gelation, and drying a graphene oxide gel film. The graphene film has an excellent flexibility, a crystallinity of lower than 60% and an elongation at break of 15-50%, wherein no crease is remained after the flexible graphene film is repeatedly folded more than 100,000 times. The preparation method of the graphene film provided by the present invention controls the macroscopic properties of the graphene film by microscopically controlling the morphology of the graphene monolith, and can significantly improve the flexibility of the graphene film. It can significantly improve the flexibility of the graphene film. The process is simple and easy to be popularized, and has potential applications in flexible electronic devices and the like. 1. A flexible graphene film , which comprises multiple folded graphene oxide sheets which are lapped with each other , or comprises multiple folded graphene sheets which are lapped with each other , wherein a crystallinity of the flexible graphene film is lower than 60%.2. A preparation method of a flexible graphene oxide film , which comprises steps of:(S1) dispersing graphene oxide in a good solvent, obtaining a graphene oxide solution with a concentration in a range of 5-20 mg/mL, performing scraping-film, and obtaining a liquid graphene oxide film;(S2) immersing the liquid graphene oxide film in a poor solvent for 2 to 24 h, performing gelation, and obtaining a graphene oxide gel film; and(S3) drying the graphene oxide gel film, and obtaining the flexible graphene oxide film.38-. (canceled)9. The preparation method of the flexible graphene oxide film claim 2 , as recited in claim 2 , wherein: in the step of (S1) claim 2 , the good solvent is at least one member selected from a group consisting of N claim 2 ,N-dimethylformamide claim 2 , ...

RAPID CHARGE LITHIUM-ION BATTERY

A rapid charge lithium-ion battery comprises a positive plate, a negative plate, a separator disposed at intervals between the positive plate and the negative plate, and an electrolyte. The positive plate includes a positive current collector and a positive active material layer disposed on a surface of the positive current collector; the positive active material layer includes a positive active material, a positive conductive agent and a positive adhesive; the positive active material includes a component A and a component B; the component A is selected from at least one of lithium nickel cobalt aluminum oxide (NCA), lithium nickel cobalt manganese oxide (NCM), lithium manganese oxide (LMO) and lithium cobalt oxide (LiCoO); the component B is selected from at least one of lithium iron phosphate (LFP) and lithium titanium oxide (LTO); and the component B accounts for 5 to 90 percent by mass of the positive active material. 1. A rapid charge lithium-ion battery , comprising a positive plate , a negative plate , a separator disposed at intervals between the positive plate and the negative plate , and an electrolyte , whereinthe positive plate includes a positive current collector and a positive active material layer disposed on a surface of the positive current collector; the positive active material layer comprises the following compositions in percentage by mass:80 to 99 percent of positive active material;to 10 percent of positive conductive agent; and0.1 to 10 percent of positive adhesive;the positive active material includes a component A and a component B; the component A is selected from at least one of lithium nickel cobalt aluminum oxide (NCA), lithium nickel cobalt manganese oxide (NCM), lithium manganese oxide (LMO) and lithium cobalt oxide (LiCoO2); the component B is selected from at least one of lithium iron phosphate (LFP) and lithium titanium oxide (LTO); andthe component B accounts for 5 to 90 percent by mass of the positive active material.2. The ...

FAST CHARGING METHOD FOR BATTERY

The present invention provides a fast charging method for battery, including the steps as follows: (1) the battery is charged with a constant current Iand the charging time is t; (2) the battery is charged with a constant current Iand the charging time is t; (3) the battery is discharged with the constant current Iand the discharging time is t, recycling until the voltage reaches a pre-charging voltage of battery; (4) the battery is standed after the voltage reaching the pre-charging voltage of battery, and the rest time is t, and then the battery is charged with a constant current Iuntil the voltage reaching a cut-off voltage of battery, and then the battery is charged with a constant voltage until the current reaching a cut-off current I; wherein, I Подробнее

Calibrating time-lapse seismic images for production operations

A system and method can be used for to calibrating time-lapse seismic volumes by cross-migration rescaling and reorientation for use in determining optimal wellbore placement or production in a subsurface environment. Certain aspects include methods for cross-migration of data sets processed using different migration techniques. Pre-processing of the data sets, optimization of rescaling and reorientation, and identification of adjustment parameters associated with minimum global error can be used to achieve a time-dependent formation data set that addresses error in all input data sets.

NEGATIVE MATERIAL LAYER AND LITHIUM-ION BATTERY APPLYING THE SAME

The present disclosure provides a negative material layer, which comprises negative active material, conductive agent, binder material and thickening agent. A weight percentage of the binder material in the negative material layer is not more than 2%. The binder material comprises a polymer polymerized from a styrene monomer, an acrylic ester monomer and an acrylic acid monomer. The negative material layer has a small amount of binder material, an excellent ion conductivity; the lithium-ion battery using the negative material layer can avoid lithium precipitation from occurring on a surface of the negative electrode and have an excellent safety performance and an excellent cycle performance in the case of quick and high rate charge. 1. A negative material layer , comprising negative active material , conductive agent , binder material and thickening agent ,a weight percentage of the binder material in the negative material layer being not more than 2%;the binder material comprising a polymer polymerized from a styrene monomer, an acrylic ester monomer and an acrylic acid monomer.3. The negative material layer according to claim 1 , wherein the acrylic ester monomer is at least one select from a group consisting of methyl acrylate claim 1 , ethyl acrylate claim 1 , butyl methacrylate and butyl acrylate; the acrylic acid monomer is at least one select from a group consisting of acrylic acid claim 1 , methacrylic acid and ethacrylic acid.4. The negative material layer according to claim 1 , whereina weight percentage of the styrene monomer in the whole monomers is 10˜40%;a weight percentage of the acrylic ester monomer in the whole monomers is 50˜85%;a weight percentage of the acrylic acid monomer in the whole monomers is 1˜10%.5. The negative material layer according to claim 1 , wherein the negative active material is at least one selected from a group consisting of graphite claim 1 , meso carbon micro bead claim 1 , hard carbon claim 1 , soft carbon claim 1 , LiTiO ...

NEGATIVE ELECTRODE MEMBRANE AND LITHIUM ION BATTTERY USING THE SAME

The present application provides a negative electrode membrane containing a negative electrode active substance, a conductive agent, a binder and a thickener, wherein the mass percent content of the binder in the negative electrode membrane does not exceed 2%, and the binder contains a polymer formed of a styrene monomer, an acrylate-based monomer and an acrylic acid-based monomer. The negative electrode membrane has small content of binders and good ion conductivity performance; with the usage of the negative electrode membrane in a Lithium ion battery, in cases of high-rate fast charging, it is possible to avoid lithium to precipitate on a surface of the negative electrode sheet, and the Lithium ion battery may have good safety and cycle performance. 1. A negative electrode membrane , comprising a negative electrode active substance , a conductive agent , a binder and a thickener , wherein the mass percent content of the binder in the negative electrode membrane does not exceed 2% , and the binder contains a polymer formed of a styrene monomer , an acrylate-based monomer and an acrylic acid-based monomer.3. The negative electrode membrane according to claim 1 , wherein the acrylate-based monomer is selected from at least one of methyl acrylate claim 1 , ethyl acrylate claim 1 , butyl methacrylate and butyl acrylate; and the acrylic acid-based monomer is selected from at least one of an acrylic acid claim 1 , a methacrylic acid and an ethylacrylic acid.4. The negative electrode membrane according to claim 1 , wherein the mass percent content of the styrene monomer in total monomers is 10-40%; the mass percent content of the acrylate-based monomer in total monomers is 50-85%; and the mass percent content of the acrylic acid-based monomer in total monomers is 1-10%.5. The negative electrode membrane according to claim 1 , wherein the negative electrode active substance is selected from at least one of graphite claim 1 , mesocarbon microbeads claim 1 , hard carbon ...

METHOD, A DEVICE AND A MEDIUM FOR OBTAINING AND PROVIDING ACCESS INFORMATION OF A WIRELESS ACCESS POINT

Disclosed are a method, a device and a medium for obtaining and providing access information of a wireless access point. The method comprises: searching for wireless access points to obtain identification information of one or more wireless access points; determining whether mobile data is available; if yes, sending an access information query request via mobile data, wherein the access information query request comprises the identification information of the one or more wireless access points; if no, sending a query request short message via a short message channel, wherein the query request short message comprises the identification information of the one or more wireless access points; receiving access information of the one or more wireless access points returned by a network device in response to the access information query request or the query request short message. 1. A method for obtaining access information of a wireless access point at a user equipment , comprising:searching for wireless access points to obtain identification information of one or more wireless access points;determining whether mobile data is available;if yes, sending an access information query request via mobile data, wherein the access information query request comprises the obtained identification information of the one or more wireless access points;if no, sending a query request short message via a short message channel, wherein the query request short message comprises the identification information of the one or more wireless access points; andreceiving access information of the one or more wireless access points which is returned by a network device in response to the access information query request or the query request short message.2. The method as recited in claim 1 , wherein the step of determining whether mobile data is available comprising:determining whether mobile data of the user equipment is available;if yes, determining that the mobile data is available;if no, ...

TWO-DIMENSIONAL HIGH-PERFORMANCE RESONATOR

The disclosure discloses a two-dimensional high-performance resonator, which is specifically an ultra-high-frequency resonator structure capable of improving an electromechanical coupling coefficient of the resonator. The resonator includes a piezoelectric layer, where an electrode layer is distributed on the upper surface of the piezoelectric layer, the electrode layer includes a plurality of electrodes arranged in a horizontal direction with a distance therebetween greater than four wavelengths, and a bridge structure is arranged on an upper portion of the electrode layer. The resonator structure can effectively improve the resonance frequency and the electromechanical coupling coefficient of the resonator, and can meet the requirements of the 5G market, and the quality factor is greatly improved. 1. A two-dimensional resonator , comprising a piezoelectric layer , wherein an electrode layer is distributed on an upper surface of the piezoelectric layer; the electrode layer comprises a plurality of electrodes arranged in a horizontal direction with respect to xy-plane with a distance therebetween greater than four wavelengths , and a bridge structure is arranged on an upper portion of the electrode layer.2. The two-dimensional resonator of claim 1 , wherein the bridge structure is in direct contact with the piezoelectric layer and connects electrodes that are adjacent in a vertical direction.3. The two-dimensional resonator of claim 1 , wherein the bridge structure is in indirect contact with the piezoelectric layer and connects electrodes that are adjacent in a vertical direction with respect to xy-plane.4. The two-dimensional resonator of claim 1 , wherein a shape of the bridge structure is a rectangle claim 1 , a quadrangle claim 1 , or a polygon.5. The two-dimensional resonator of claim 4 , wherein a material of the bridge structure is selected from platinum claim 4 , molybdenum claim 4 , gold claim 4 , tungsten claim 4 , copper claim 4 , or aluminum.6. The two- ...

METHOD FOR PREPARING COMPOSITES ON BASIS OF GRAPHENE BONDING

The invention utilizes swelling and fusion effects of graphene oxide in a solvent to implement cross-linked bonding of a graphene material itself and materials such as polymers, metal, paper, glass, carbon materials, and ceramics. The present invention not only overcomes the shortcoming in traditional adhesives of residual formaldehyde, but also has short drying time, high bonding strength and high corrosion resistance. The present invention is widely applied in the fields of aviation, aerospace, automobiles, machinery, construction, chemical, light industry, electronics, electrical appliances, and daily life, etc. 118-. (canceled)19. A method for preparing a highly thermally conductive thick graphene film , wherein the thickness is greater than 50 μm , the porosity is 5-40% , the in-plane thermal conductivity is 1000-2000 W/mK; the pleat density on the graphene sheet is controlled to 50-500 mm/mm2 , and the graphene sheet has few defects and has an ID/TG ratio of <0.02; there is no delamination in the graphene thick film , and the distance between any two adjacent graphene sheets is less than 20 nm graphene; and the preparation method comprises the following steps:(1) formulating graphene oxide having an average size greater than 50 μm into an aqueous graphene oxide solution having a concentration of 1 to 20 mg/mL, and naturally drying after a film is formed from the solution, to obtain a graphene oxide film;(2) laminating a plurality of graphene oxide films specifically by uniformly spraying a liquid on the surface of the graphene oxide films to swell the surface, and then bonding the plurality of graphene oxide films together in the thickness direction;(3) drying the bonded graphene oxide composite film in an oven at a temperature of not higher than 40° C.;(4) transferring the dried graphene oxide composite film to a hot-pressing chamber of a hot press, heating to 200° C. at a ramping rate of 0.1 to 5° C./min and then hot pressing by repeating the following hot- ...

ELECTROCHEMICAL DEVICE

The present application relates to an electrochemical device. Specifically, the present application provides a cell, wherein the cell is formed by winding or stacking a first electrode and a second electrode which are arranged at an interval, and a separator is disposed between the first electrode and the second electrode. Wherein the first electrode includes a first current collector, and the first current collector includes a coated region coated with a first active material and an uncoated region without the first active material; the uncoated region is at least partially provided with an insulating layer. The adhesion between the insulating layer and the first current collector is not less than about 0.5 N/m. The electrochemical device provided by the present application has improved safety performance. 1. A cell , wherein the cell is formed by winding or stacking a first electrode and a second electrode which are arranged at an interval , a separator is disposed between the first electrode and the second electrode; whereinthe first electrode comprises a first current collector, the first current collector comprises a coated region coated with a first active material and an uncoated region without coating the first active material;the uncoated region is at least partially provided with an insulating layer; andan adhesion between the insulating layer and the first current collector is not less than about 0.5 N/m.2. The cell according to claim 1 , wherein the insulating layer comprises an insulating material.3. The cell according to claim 2 , wherein the insulating layer further comprises an adhesive.4. The cell according to claim 3 , wherein the insulating layer has a porosity of about 3% to about 60%.5. The cell according to claim 3 , wherein the weight percentage of the insulating material to the adhesive is about 50%:50% to about 90%:10%.6. The cell according to claim 2 , wherein the insulating layer is a hot melt adhesive.7. The cell according to claim 2 , ...

PULSE RANGING DEVICE AND METHOD, AND AUTOMATIC CLEANING APPARATUS HAVING SAME

A pulse ranging apparatus, includes: an emitting unit configured to emit an optical pulse signal; a receiving unit configured to receive a reflected optical pulse signal by an obstacle, and convert it into an electrical signal; a threshold comparator, configured to compare the electrical signal with a preset threshold and to generate a pulse trigger signal according to a comparison result; a time delay unit configured to delay the pulse trigger signal by a preset time length to generate a delay trigger signal; a timing unit, configured to determine a time of flight of the optical pulse signal according to an emitting time of the optical pulse signal, a generating time of the delay trigger signal, and a delay of the preset time length; and a distance determination unit configured to determine a distance between the pulse ranging apparatus and the obstacle according to the time of flight. 1. A pulse ranging apparatus , comprising:an emitting unit, configured to emit an optical pulse signal;a receiving unit, configured to receive a reflected optical pulse signal by an obstacle, and convert the reflected optical pulse signal into an electrical signal;a threshold comparator, configured to compare the electrical signal with a preset threshold, and to generate a pulse trigger signal according to a comparison result;a time delay unit, configured to delay the pulse trigger signal by a preset time length to generate a delay trigger signal;a timing unit, configured to determine a time of flight of the optical pulse signal according to an emitting time at which the emitting unit emits the optical pulse signal, a generating time at which the delay trigger signal is generated, and a delay of the preset time length; anda distance determination unit, configured to determine a distance between the pulse ranging apparatus and the obstacle according to the time of flight of the optical pulse signal.2. The pulse ranging apparatus according to claim 1 , wherein the distance ...

PREPARATION METHOD OF GRAPHENE FLOWER AND USE OF GRAPHENE FLOWER IN LITHIUM SULFUR BATTERY

Disclosed in the present disclosure is a preparation method of a graphene flower, mainly lying in spray-drying graphene oxide solution to obtain a graphene oxide flower and then performing reduction on the same to obtain a graphene flower. Also disclosed in the present disclosure is use of the graphene flower in a lithium sulfur battery. The present disclosure is easy to operate, low cost, and suitable for scaled production, can improve the rate capability of a lithium sulfur battery while ensuring the high energy ratio of the lithium sulfur battery, thus greatly improving the energy density thereof, and can be applied in the field of high energy storage material and devices. 1. A preparation method of a graphene flower , wherein comprising steps of:1) dissolving a graphene oxide raw material in a solvent and stirring to obtain a graphene oxide solution;2) spray-drying the graphene oxide solution to obtain graphene oxide flower powder; and3) performing reduction on the graphene oxide flower by using a reducing agent or by high-temperature heat treatment to obtain the graphene flower.2. The preparation method according to claim 1 , wherein the solvent in the step 1) is selected from a group consisting of deionized water claim 1 , N-methyl-2-pyrrolidone claim 1 , N claim 1 , N-dimethylformamide claim 1 , N claim 1 , N-dimethylacetamide claim 1 , dimethyl sulfoxide claim 1 , sulfolane claim 1 , ethanol claim 1 , n-butanol claim 1 , acetonitrile or a mixture thereof at any ratio claim 1 , and a mass percentage of the graphene oxide is 0.01%-2%.3. The preparation method according to claim 1 , wherein a temperature for the spray-drying in the step 2) is 60-200° C. claim 1 , and a diameter of a spray nozzle is 0.1-100 microns.4. The preparation method according to claim 1 , wherein the reducing agent the step 3) is selected from a group consisting of an aqueous solution of hydrogen iodide with a volume percentage being 5%-50% claim 1 , a sodium ascorbate solution claim 1 , ...

METHODS FOR PREPARING AEROGELS BY PLASTICIZING AND FOAMING WITH SOLVENTS

The present invention provides a method for preparing an aerogel based on plasticizing and foaming with solvent, and the aerogel material is prepared through plasticization with solvent and generation of in-situ bubbles. The method solves the difficult problem that the non-polymer is difficult to realize thermoplastic foaming, and has wide applicability. In addition, a lot of foaming agents can be uses for this method, and this method is easy to implement, and does not require a special drying process, so that the industrialization development of the porous aerogel is greatly promote. 1. A method for preparing aerogel material , wherein the method is realized based on plasticizing and foaming with solvent and comprises:mixing a material to be foamed with a foaming agent precursor, assembling the resulted mixture into a macroscopical material; andplacing the macroscopical material into a plastic solution to be plasticized and foamed, and then dried to obtain the aerogel material.2. The method according to claim 1 , wherein the plastic solution contains an initiator which initiates the foaming agent precursor to generate gas.3. The method according to claim 1 , wherein the foaming agent precursor is initiated by heating to generate gas.4. A method for preparing aerogel material claim 1 , wherein the method is realized based on plasticizing and foaming with solvent and comprises:assembling a material to be foamed into a macroscopical material; andplacing the macroscopical material into a plastic solution containing, a foaming agent to be plasticized and foamed, and then dried to obtain the aerogel material.5. The method according to claim 4 , wherein the foaming agent comprises a spontaneous foaming agent and a reactive foaming agent claim 4 , wherein the reactive foaming agent is a foaming agent that can generate gas by reacting with the material to be foamed claim 4 , and the spontaneous foaming agent is a foaming agent that can be decomposed to generate gas.6. The ...

Electrically Programmable Fuse Circuit, Programming Method for Electrically Programmable Fuse, and State Detection Method for Electrically Programmable Fuse

An electrically programmable fuse circuit, a programming method for electrically programmable fuse, and a state detection method for electrically programmable fuse are provided. The electrically programmable fuse circuit includes a plurality of fuse cells connected in series, wherein in each of the plurality of fuse cells, one terminal of the fuse cell is connected with a first programming terminal corresponding to the fuse cell, and the other terminal of the fuse cell is connected with a second programming terminal corresponding to the fuse cell via a transistor. Reliability of electrically programmable fuses may be improved.

METHOD FOR STORING DATA SHARDS, APPARATUS, AND SYSTEM

This application relates to distributed storage, and in particular, to a distributed shard storage technology. In a method for storing data shards in a distributed storage system, M data nodes on which to-be-stored data will be stored are determined, N replicas of the to-be-stored data are obtained, and each of the N replicas is sharded into X data shards in a same sharding mode. Then the to-be-stored data is stored on the M storage nodes, that is, N replicas of each of the X data shards are respectively stored on N storage nodes, and a quantity of data shards whose data shard replicas are stored on same N storage nodes is P or P+1, where P is an integer quotient of X divided by C. 1. A method for storing data shards , wherein the method comprises:determining M storage nodes on which data will be stored;obtaining N replicas of the data, wherein the N replicas comprise original data of the data and N−1 pieces of backup data of the original data, and sharding each of the N replicas into X data shards in a same sharding mode, so that each data shard has N data shard replicas, wherein N is less than or equal to M; and{'sub': 'M', 'sup': 'N', 'storing the N replicas of the data on the M storage nodes, wherein the N data shard replicas of each of the X data shards are respectively stored on N storage nodes in the M storage nodes, and a quantity of data shards whose data shard replicas are stored on same N storage nodes is P or P+1, wherein P is an integer quotient of X divided by C.'}2. The method according to claim 1 , wherein sharding each of the N replicas into X data shards in the same sharding mode specifically comprises:{'sub': 'M', 'sup': 'N', 'determining an optimal shard base Y of the data according to the quantity N of the replicas and the quantity M of the storage nodes, wherein the optimal shard base Y is equal to C, the quantity X of the shards of the data is equal to a product of the optimal shard base Y and a coefficient K, and K is an integer greater than ...

Switching mode power supply with selectable constant-voltage cpmstamt-current control

A switch mode power supply (SMPS) has a primary-side controller configured to control a power switch for turning on and turning off a current flow in the primary winding. A secondary-side controller is coupled to the secondary winding for providing constant voltage (CV) and constant current (CC) control of the SMPS. The secondary-side controller is configured to receive an output selection signal and, based on the output selection signal, select a voltage reference signal from a plurality of voltage reference signals and select a current reference signal from a plurality of current reference signals. The secondary-side controller is configured to monitor an output voltage and an output current of the SMPS, and is configured to provide a turn-on signal to the primary-side controller for turning on the power switch upon determining that the output voltage is below the selected voltage reference signal and the output current is below the selected current reference signal.

USB TYPE-C CONNECTOR AND METHOD FOR MANUFACTURING THE SAME

The present application relates to a Universal Serial Bus (USB) Type-C connector and a method of manufacturing the same. Such a USB Type-C connector comprises a casing, an insulating body, a first conductive terminal strip and a second conductive terminal strip, wherein the said casing is configured on the said insulating body, the said first conductive terminal strip and the said second conductive terminal strip are spaced apart and configured to be facing each other inside the said insulating body. 110-. (canceled)11. A USB Type-C connector comprising: a casing , an insulating body , a first conductive terminal strip and a second conductive terminal strip , wherein the said casing is configured on the said insulating body , the said first conductive terminal strip and the said second conductive terminal strip are spaced apart and configured to be facing each other inside the said insulating body.12. The USB Type-C connector according to claim 11 , wherein a first installation slot and a second installation slot claim 11 , extending along the said insulating body in forward and backward directions claim 11 , are formed within the said insulating body claim 11 , and the said first conductive terminal strip and the said second conductive terminal strip are respectively configured in the said first installation slot and the said second installation slot.13. The USB Type-C connector according to claim 11 , wherein a casing securing structure which is used to secure the said casing in position is configured at a rear end of the insulating body.14. The USB Type-C connector according to claim 13 , wherein the casing securing structure comprises an engaging surface and a positioning block claim 13 , the said engaging surface is formed on the surface of the said insulating body claim 13 , and the said positioning block is on the said engaging surface.15. The USB Type-C connector according to claim 11 , wherein a space for coupling is formed between the said casing and the ...

Artificial intelligence assisted production advisory system and method

A method includes receiving first data and building a first model of a well based at least partially upon the first data. The method also includes receiving second data and building a second model including a network of flowlines based at least partially upon the second data. At least one of the flowlines is connected to the well. The method also includes combining the first model and the second model to produce a combined model. The method also includes calibrating the combined model to produce a calibrated model. Calibrating the combined model includes receiving measured data, miming a simulation of the combined model to produce simulated results, and adjusting a calibration parameter to cause the simulated results to match the measured data. The calibration parameter includes a productivity index of a fluid flowing out of the well. The method also includes updating the calibrated model to produce an updated model.

METHOD AND AN APPARATUS FOR PROVIDING A DESKTOP

A method and an apparatus for providing a desktop: a network device determining one or more pieces of candidate desktop information corresponding to a mobile device from an application message pushed by an application server (S), and sending the one or more pieces of candidate desktop information to the mobile device (S); the mobile device determining one or more pieces of desktop information from the one or more pieces of candidate desktop information based on a user profile model of a corresponding user (S), wherein the one or more pieces of candidate desktop information includes candidate desktop information provided by the corresponding network device, and presenting a current desktop of the mobile device according to the one or more pieces of desktop information (S). The above method and apparatus may implement a “personalized” effect of desktop presentation, increase usage efficiency of users, and improve user experience of users. 1. A method for providing a desktop at a mobile device , comprising:acquiring one or more pieces of desktop information of the mobile device, wherein at least one of the one or more pieces of desktop information is selected and determined based on a user profile model of a corresponding user of the mobile device; andpresenting a current desktop of the mobile device according to the one or more pieces of desktop information.2. The method according to claim 1 , wherein the step of acquiring one or more pieces of desktop information of the mobile device claim 1 , comprising:determining one or more pieces of desktop information from one or more pieces of candidate desktop information of the mobile device based on the user profile model of the corresponding user of the mobile device.3. The method according to claim 2 , wherein the step of determining one or more pieces of desktop information from one or more pieces of candidate desktop information of the mobile device based on the user profile model of the corresponding user of the mobile ...

CIRCUITS AND METHODS FOR REDUCING OUTPUT VOLTAGE OVERSHOOT OF SWITCH MODE POWER SUPPLY

A switching mode power supply (SMPS) includes a transformer having a primary winding for coupling to an input power source, a secondary winding for providing an output voltage of the SMPS, and an auxiliary winding. The SMPS also has a power transistor coupled to the primary winding and a primary side control circuit coupled to the auxiliary winding and the power transistor. The primary side control circuit is configured to regulate the output of the SMPS by controlling the power switch in response to a feedback voltage signal that is representative of an output of the SMPS. The SMPs also has a secondary-side control circuit coupled to the secondary winding and being configured to cause the output voltage of the SMPS to discharge when the output voltage of the SMPS is higher than a first reference voltage. 1. A switching mode power supply (SMPS) , comprising: a primary winding for coupling to an input power source;', 'a secondary winding for providing an output voltage of the SMPS; and', 'an auxiliary winding;, 'a transformer havinga power transistor coupled to the primary winding;a primary side control circuit coupled to the auxiliary winding and the power transistor, the primary side control circuit being configured to regulate the output of the SMPS by controlling the power switch in response to a feedback voltage signal that is representative of an output of the SMPS; anda secondary-side control circuit coupled to the secondary winding and being configured to cause the output voltage of the SMPS to discharge when the output voltage of the SMPS is higher than a first reference voltage.2. The switching mode power supply of claim 1 , wherein the secondary-side control circuit comprises a discharge control circuit having a power supply terminal coupled to the output voltage of the SMPS claim 1 , the discharge control circuit being configured to issue a discharge signal.3. The switching mode power supply of claim 2 , wherein the discharge control circuit is configured ...

TOUCH DEVICE

A touch device comprises a touch sensing structure, a cover lens, a first mask layer, a second mask layer and a fingerprint identification structure. The cover lens has a first surface and a second surface opposite to the first surface. The cover lens has a groove; the groove is disposed on the second surface and has a top surface and side surfaces adjacent to the top surface. The first mask layer covers the top surface of the groove. The second mask surface covers the side surface of the groove. The color of the first mask layer and the second mask layer are different. At least a portion of the fingerprint identification structure is disposed on the top surface in the groove. The touch sensing structure is disposed on the second surface. 1. A touch device , comprising:a cover lens having a first surface and a second surface opposite to the first surface, and the first surface is a touch surface;a groove disposed on the second surface, and having a top surface and a side surface adjacent to the top surface;a first mask layer covering the top surface of the groove;a second mask layer covering the side surface of the groove, wherein the color of the first mask layer and the color of the second mask layer are different;a fingerprint identification structure, wherein at least a portion of the fingerprint identification structure is disposed on the top surface in the groove; anda touch sensing structure disposed on the second surface.2. The touch device of claim 1 , wherein the orthographic projection of the first mask layer on the first surface is a fingerprint identification area claim 1 , the orthographic projection of the second mask layer on the first surface is a fingerprint labeled area claim 1 , and the fingerprint identification area is surrounded by the fingerprint labeled area.3. The touch device of claim 2 , wherein the first mask layer further covers a peripheral area of the second surface to form a frame area claim 2 , and the fingerprint identification ...

METHOD OF STARTING CAMERA IN USER EQUIPMENT, USER EQUIPMENT AND STORAGE MEDIUM

A method of starting a camera, a user equipment and a storage medium are provided. A memory in the user equipment is additionally utilized to store calibrated OTP data therein so that the calibrated OTP data stored in the memory can be written directly into a register of an optical sensor of the camera each time the user equipment accesses the camera to thereby avoid OTP data calibration each time the user equipment accesses the camera, and shorten a period of time for the user equipment to access the camera and a period of time for the camera to start while avoiding an overly amount of calibration calculations, lowering a load on a kernel of the user equipment and improving the experience of a user. 1. A method of starting a camera in a user equipment comprising:receiving an instruction to start the camera; andreading camera module One Time Programmable (OTP) data in a memory in response to the instruction and when valid camera module OTP data is read, writing the valid camera module OTP data into a register of an optical sensor of the camera.2. The method of claim 1 , further comprising:when no valid camera module OTP data is read, reading camera module OTP data to be calibrated in an OTP register, and when valid camera module OTP data to be calibrated is read, calibrating the camera module OTP data to be calibrated against with standard camera module OTP data, and writing the calibrated camera module OTP data into the register of the optical sensor of the camera and storing the calibrated camera module OTP data into the memory.3. The method of claim 1 , wherein the reading camera module OTP data in the memory and when valid camera module OTP data is read claim 1 , writing the valid camera module OTP data into the register of the optical sensor of the camera comprises:reading the camera module OTP data in the memory, and judging whether the camera module OTP data has been calibrated, and when it is judged that the camera module OTP data has been calibrated, ...

POSITION INFORMATION PROMPTING METHOD, DEVICE AND SYSTEM

The present invention discloses a position information prompting method, device, and system. A designated server receives from a portable locator multiple position point information obtained according to pre-set time and positioning time corresponding to each position point information, generates a movement track of the portable locator, and records the movement track; then, when the designated server receives the current position point information transmitted by the portable locator, according to the current position point information, an alert signal is generated if the current position point corresponding to the current position point information is not on the recorded movement track. A guardian holding a monitoring terminal can be ensured to know at any time whether the person being monitored and holding the portable locator is on a strange road, and thereby the safety information of the monitored person is mastered, and the user experience is enhanced. 1. A position information displaying method , characterized in the method comprises:a server receiving and recording position point information transmitted regularly by a portable locator, the position point information comprising information for positioning a position point of the portable locator;determining a location area corresponding to the position point information according to the position point information;making statistics of the number of position points corresponding to the position point information in the location area among recorded position point information;marking the location area or position points in the location area if the number of the position points exceeds a threshold;displaying the marked location area or position points in the location area in an electronic map.2. The method according to claim 1 , characterized in that claim 1 , the displaying the marked location area or position points in the location area in an electronic map comprises:displaying the marked location area or ...

Paper ball-like graphene microsphere, composite material thereof, and preparation method therefor

The present invention provides a paper ball-like graphene microsphere, a composite material thereof, and a preparation method therefor. Such paper ball-like graphene microspheres are obtained by chemically reducing graphene oxide microspheres to slowly remove oxygen-containing functional groups on the surface of the graphene oxide to avoid the volume expansion caused by rapid removal of the groups, thereby maintaining a tight bond between graphene sheets without separation; and removing the remaining small number of oxygen-containing functional groups and repairing defect structures in the graphene oxide sheets by means of high temperature treatment, such that the graphene structure becomes perfect at an ultrahigh temperature (2500 to 3000° C.) thereby further improving the bonding ability between the graphene sheets in the microspheres and achieving a dense structure. 1. A paper ball-like graphene microsphere , characterized in that the graphene microsphere is formed by pleated single-layer graphene sheets and has a diameter of 500 nm-5 μm , a density of 0.2-0.4 g/cm , a carbon/oxygen ratio of 20-60 , and a specific surface area of less than 200 m/g.2. A graphene-based lubricating oil , comprising the following components in parts by weight: 100 parts of a base oil , 0.05-1 part of paper ball-like graphene microspheres , and 2-14 parts of additional auxiliary agents , wherein the paper ball-like graphene microsphere comprises pleated single-layer graphene sheets and has a diameter of 500 nm-5 μm , a density of 0.2-0.4 g/cm , a carbon/oxygen ratio of 20-60 , and a specific surface area of less than 200 m/g.3. The lubricating oil according to claim 2 , wherein the additional auxiliary agents comprises 0.5-1 part of a dispersing agent claim 2 , 0.5-1.5 parts of a compatilizer claim 2 , 0.3 to 1 part of a viscosity modifier claim 2 , 0.2 to 0.5 part of an antifoaming agent claim 2 , and 0.5 to 10 parts of a preservative.4. (canceled)5. A lithium complex-based grease ...

INDEPENDENT FREE-STANDING GRAPHENE FILM AND METHOD OF PREPARING THE SAME

Proposed is a method of preparing an independent free-standing graphene film. The graphene film is obtained by means of suction filtration of graphene oxide into a film, solid phase transfer, chemical reduction and the like steps. The graphene film is formed by means of physical cross-linking of a single layer of oxidized/reduced graphene oxide. The graphene film has a thickness of 10-2000 atomic layers. The graphene oxide film has a small thickness and a large number of defects inside, so that it has good transparency and excellent flexibility. On the basis of the transfer film-forming method above, an independent free-standing wrinkled graphene film having a nanoscale thickness is prepared by using a poor solvent and a special high temperature annealing process, and an independent free-standing foamed graphene film having a nanoscale thickness is obtained by using a film-forming thickness and a special high temperature annealing process. 1. A method of preparing an independent free-standing graphene film , wherein comprising steps of:(1) formulating graphene oxide into an aqueous solution of graphene oxide with a concentration of 0.5-10 ug/mL, and performing suction filtration with mixed cellulose ester (MCE) as a substrate to form a film;(2) placing a graphene oxide film attached to a MCE film in a closed container, and performing fumigation with HI at a high temperature of 60-100 degrees for 1-10 hours;(3) coating a melted solid transfer agent uniformly on a surface of a reduced graphene oxide film by evaporation or casting, and performing cooling at room temperature slowly;(4) placing the graphene film coated with the solid transfer agent in a good solvent for the MCE film, and removing the MCE film by etching; and(5) removing, by volatilizing at a temperature at which the solid transfer agent is volatilizable, the solid transfer agent from the obtained graphene film supported by the solid transfer agent to obtain an independent free-standing graphene film.2. ...

METHOD FOR CHARGING A LITHIUM ION BATTERY

A method for charging a lithium ion battery includes the steps of: 1) determining a maximum charging current Iand a lowest anode potential η of the lithium ion battery at which no lithium precipitation occurs; 2) charging the lithium ion battery at a constant current of Iwhich is greater than Ifor a charging time t; 3) discharging the lithium ion battery at a constant current of Iwhich is less than Ifor a discharging time t, 5≦t/t≦50; 4) repeating steps 2) and 3) until a cutoff voltage of the lithium ion battery reaches Vand standing the lithium ion battery for a standing time t; and 5) charging the lithium ion battery at a constant current of Iuntil the cutoff voltage of the lithium ion battery reaches Vand charging the lithium ion battery to a cutoff current of Iat a constant voltage. 1. A method for charging a lithium ion battery , comprising the steps of:{'sub': '0', '1) determining a maximum charging current Iand a lowest anode potential η of the lithium ion battery at which no lithium precipitation occurs;'}{'sub': 1', '0', '1, '2) charging the lithium ion battery at a constant current of Iwhich is greater than Ifor a charging time of t;'}{'sub': 2', '0', '2', '1', '2, '3) discharging the lithium ion battery at a constant current of Iwhich is less than Ifor a discharging time of t, wherein 5≦t/t≦50;'}{'sub': 0', '3, '4) repeating steps 2) and 3) until a cutoff voltage of the lithium ion battery reaches V, and then standing the lithium ion battery for a standing time of t; and'}{'sub': 0', '0', '3, '5) charging the lithium ion battery with a constant current of Iuntil the cutoff voltage of the lithium ion battery reaches Vand then charging the lithium ion battery to a cutoff current of Iat a constant voltage.'}2. The method for charging a lithium ion battery of claim 1 , wherein in step 2) claim 1 , a current value of the constant current Iis 0.7 C to 3 C and the charging time tis 0.1 s to 20 s.3. The method for charging a lithium ion battery of claim 1 , ...

CHARGING METHOD, CHARGING DEVICE, AND COMPUTER-READABLE MEDIUM FOR CHARGING A BATTERY

A charging method is proposed to include the steps of: in a first stage of charging, charging a battery with a first-stage current until a voltage of the battery reaches a first-stage voltage value; and in a second stage of charging, charging the battery with a second-stage current until the voltage of the battery reaches a second-stage voltage value which is greater than the first-stage voltage value. The second-stage current is smaller than the first-stage current. 1. A charging method , comprising:in a first stage of charging, charging the battery with a first-stage current until a voltage of the battery reaches a first-stage voltage value; andin a second stage of charging, charging the battery with a second-stage current until the voltage of the battery reaches a second-stage voltage value; wherein the second-stage voltage value is greater than the first-stage voltage value, and the second-stage current is smaller than the first-stage current.2. The charging method of claim 1 , wherein the second stage includes N sub-stages claim 1 , wherein N is a positive integer;{'sup': th', 'th', 'th', 'th, 'wherein: in an isub-stage, which is one of the N sub-stages, the battery is charged at one of an icurrent, an ivoltage and an ipower;'}{'sup': th', 'th', 'th', 'th, 'in an (i+1)sub-stage, the battery is charged at one of an (i+1)current, an (i+1)voltage and an (i+1)power; and'}{'sup': th', 'th, 'the (i+1)current has a current value equal to or smaller than that of the icurrent.'}3. The charging method of claim 2 , wherein the battery is charged to the second-stage voltage value in the Nsub-stage claim 2 , with a charge condition of an Ncurrent claim 2 , an Nvoltage or an Npower.4. The charging method of claim 3 , wherein the first-stage voltage value is equal to a charging limit voltage value for the battery claim 3 , and the second-stage voltage value is smaller than an oxidation decomposition voltage of an electrolyte of the battery.5. The charging method of claim 3 , ...

ELECTRONIC DEVICE AND METHOD FOR IMPROVING BATTERY CYCLING PERFORMANCE

A method for improving cycling performance of a battery includes, in a first stage, charging the battery with a first-stage current until a voltage of the battery reaches a first-stage voltage value and in a second stage, charging the battery with a second-stage current until the voltage of the battery reaches a second-stage voltage value. The second-stage voltage value is greater than the first-stage voltage value, and the second-stage current is less than the first-stage current. 1. A method for improving cycling performance of a battery , the method comprising:in a first stage, charging the battery with a first-stage current until a voltage of the battery reaches a first-stage voltage value;in a second stage, charging the battery with a second-stage current until the voltage of the battery reaches a second-stage voltage value, wherein the second-stage voltage value is greater than the first-stage voltage value, and the second-stage current is less than the first-stage current;wherein, the battery comprises a positive electrode, a negative electrode, and a separator located between the positive electrode and the negative electrode, wherein a bonding force between the separator and the positive electrode, or a bonding force between the separator and the negative electrode is greater than or equal to 3 N/m.2. The method according to claim 1 , wherein in the second stage claim 1 , charging the battery by a first charging mode or a second charging mode until the voltage of the battery reaches the second-stage voltage value;{'sup': th', 'th', 'th', 'th', 'th', 'th', 'th', 'th', 'th', 'th', 'th', 'th', 'th', 'th', 'th, 'the first charging mode comprises K charging sub-stages sequentially, K is an integer greater than or equal to 2, and the K charging sub-stages are set as icharging sub-stage separately, i=1, 2, . . . , K; in an icharging sub-stage, charging the battery with one of an icurrent value, and an ivoltage value, and an ipower value; in an (i+1)charging sub- ...

METHODS, DEVICES, AND SYSTEMS FOR PROMPTING WHETHER PORTABLE LOCATOR HAS ARRIVED ON TIME

The present invention discloses a method, device, and system for prompting whether a portable locator has arrived on time, one of which comprising: a server, according to position point information transmitted by the portable locator, judges that there is not a position point indicative of arrival at a destination reminder area in a current preset time period and the current time has already exceeded an estimated arrival time, and then generates and issues a non-arrival reminder. By employing the present invention, the guardian confirms at any time that the monitored person carrying the portable locator does not arrive at the destination reminder area within the preset arrival time, and thereby masters the safety information of the monitored person, whereby the user experience is improved and subsequent person search effectiveness is enhanced. 1. A method for prompting whether a portable locator has arrived on time , comprising:the portable locator obtaining position point information of a position point where the portable locator is, and transmitting the position point information to a server;the server recording the position point information and the positioning time corresponding to the position point information transmitted by the portable locator;generating a location area according to the position point corresponding to the position point information, judging whether the number of position points corresponding to other position information occurring again in the location area in a preset time period exceeds a threshold, and marking the location area as a stay area corresponding to the preset time period if the number exceeds the threshold;judging, for multiple different preset time periods, whether the number of stay areas corresponding to respective preset time periods which are identical or partially overlapped exceeds a threshold, judging whether time of first reaching the identical or partially overlapped stay areas in the respective preset time periods ...

GRAPHENE COMPOSITE MATERIAL AND PREPARATION METHOD THEREOF

The present invention discloses a graphene composite material and a preparation method thereof. By adding pleated graphene oxide microspheres and a catalyst to a presursor, the pleated graphene oxide microspheres are allowed to be highly dispersed and gradually disassociated into single-layer graphene oxide sheets during the process of polycondensation, the partially esterified molecules react with the hydroxyl and carboxyl group on the surface of graphene oxide sheets to form a chemical bond, and the graphene oxide is thermally reduced, to finally obtain a composite material comprising PET and graphene sheets having PET grated to the surface. 119-. (canceled)20. A graphene-modified flame-retardant and UV resistant polyester fiber , obtained by mixing 100 parts by weight of a graphene/PET nanocomposite material and 0-10 parts by weight of an auxiliary agent , and spinning , cooling , oiling , drawing , and winding , wherein the graphene/PET nanocomposite material comprises single-layer graphene sheets and PET and the surface of the graphene sheet and the PET molecule are connected by a covalent bond.21. A method for preparing a graphene-modified flame-retardant and UV-resistant polyester fiber , comprising uniformly mixing 100 parts by weight of a graphene/PET nanocomposite material and 0-10 parts by weight of an auxiliary agent , melting and extruding , to obtain the graphene-modified flame-retardant and UV-resistant polyester fiber.22. The method of claim 21 , wherein the graphene/PET nanocomposite material is prepared through a method comprising the following steps:(1) drying a dispersion of single-layer graphene oxide with a size of 1-50 μm by atomization drying to obtain pleated graphene oxide microspheres having a carbon/oxygen ratio of 2.5-5;(2) fully mixing 100 parts by weight of terephthalic acid, 48-67 parts by weight of ethylene glycol, and 0.02 part by weight of sodium acetate by stirring, and subjecting the mixture to an esterification reaction at 250° ...

CONSTRUCTION METHOD OF 3D PRINTING AND WEAVING INTERGTATED BUILDING

The present invention discloses a construction method of 3D printing and weaving integrated building, comprising: selecting basic building structural components, using finite element analysis after spatial modeling, and combining stress nephogram to set a discrimination domain value and optimize a structure space, obtaining a structural component skeleton; calculating and analyzing the structural component skeleton, determining a weaving range and weaving density of a wire according to weak areas and sizes under structural stress; and then determining a printing process and weaving process according to the structural component skeleton, the weaving range and the weaving density; preparing 3D printing material; 3D printing a matrix and weaving the wire according to the printing process and weaving process, constructing layer by layer, or printing segments, and then connecting segments by preset tenoning structural sections to form a 3D printing and weaving integrated building. The construction method of the present invention has high toughness, fatigue resistance, longevity and other advantages; so that each part of the building can not only meet the different requirements of structural mechanics, but also can achieve economic beauty and modeling art on the basis of safety and reliability. 1. A construction method for a 3D printing and weaving integrated building , comprising the following steps:(1) selecting basic building structural components, using finite element analysis after spatial modeling, and combining stress nephogram to set a discrimination domain value and optimize a structure space, obtaining a structural component skeleton;(2) calculating and analyzing the structural component skeleton, determining a weaving range and weaving density of a wire according to weak areas and sizes under structural stress; and then determining a printing process and weaving process according to the structural component skeleton, the weaving range and the weaving density;(3 ...

ROBOT ARMS AND METHOD FOR ALIGNING SUBSTRATE WITH THE SAME

The present disclosure provides a robot arm, including a pedestal, a support arm on the pedestal and configured to support a substrate, a driving system configured to drive the support arm to move, and a substrate alignment device connected to the support arm. The substrate alignment device includes a first position information collection unit configured to acquire first position information of the substrate when the substrate is on the support arm at a first position; a deviation information acquisition unit configured to acquire position deviation information of the substrate in accordance with the first position information and second position information of the substrate in the case that the substrate is located at a standard position, and an adjustment unit configured to generate control information in accordance with the position deviation information, thereby driving the support arm by the driving system to place the substrate at a target position.

NEGATIVE ELECTRODE AND LITHIUM ION BATTERY COMPRISING NEGATIVE ELECTRODE

An embodiment of the present application provides a negative electrode and a lithium ion battery including the negative electrode, the negative electrode includes a negative electrode current collector, and a negative electrode active material layer arranged on the negative electrode current collector, wherein the negative electrode active material layer includes a negative electrode active material and a dispersant, and the dispersant includes lithium carboxymethylcellulose, wherein the mass ratio of the negative electrode active material to the dispersant being ≥18.74. The present application greatly reduces the DC resistance of the lithium ion battery and the charge transfer resistance at the interface without losing the energy density of the lithium ion battery, without affecting the cycle life of the lithium ion battery or causing cyclic expansion, which avoids the lithium precipitation phenomenon of the lithium ion battery during the cycle of charge and discharge. 1. A negative electrode , comprising:a negative electrode current collector;a negative electrode active material layer arranged on the negative electrode current collector;wherein the negative electrode active material layer comprises a negative electrode active material and a dispersant, the dispersant comprises lithium carboxymethylcellulose, and the mass ratio of the negative electrode active material to the dispersant is 8.74.2. The negative electrode according to claim 1 , wherein the dispersant comprises a mixture of lithium carboxymethylcellulose and sodium carboxymethylcellulose.3. The negative electrode according to claim 1 , wherein the dispersant has a degree of substitution ranging from 0.6 to 1.3.4. The negative electrode according to claim 1 , wherein the negative electrode active material comprises one or a combination of artificial graphite claim 1 , natural graphite claim 1 , silicon carbide claim 1 , mesophase carbon microbeads claim 1 , silicon claim 1 , and alloys thereof.5. The ...

Non-woven graphene fiber fabric and preparing method thereof

A non-woven graphene fiber fabric and a preparing method therefor is provided. The non-woven fabric is formed by disorderly piled graphene fibers which are bonded with each other. The fibers are overlapped into a permeable network for passing through light, liquid or gas. The non-woven graphene fiber fabric is completely formed by graphene fibers without polymeric materials serving as skeleton or adhesive, and has good mechanical strength and flexibility. After reduction, the network structure built by the graphene fibers has excellent electrical and thermal conductivity and can be utilized as a high-performance fabric with multiple functions. 1. A non-woven graphene fiber fabric , wherein the non-woven graphene fiber fabric is formed by overlapping graphene fibers with a diameter at a range of 1-1000 μm to form a network structure; wherein the graphene fibers on nodes of the network are merged with each other; and the graphene fibers are formed by highly aligned graphene sheets along the axial direction.2. The non-woven graphene fiber fabric claim 1 , as recited in claim 1 , wherein a diameter of the graphene fiber is at a range of 1-100 μm.3. A method for preparing the non-woven graphene fiber fabric as recited in claim 1 , comprising following steps of:(1) preparing graphene oxide dispersion with a concentration at a range of 1-15 mg/mL, wherein a solvent of the graphene oxide dispersion is N, N′-dimethyl formamide, and the graphene oxide dispersion serves as a spinning solution;(2) extruding the spinning solution at a velocity range of 0.01-10 mL/min through a spinneret with a diameter at a range of 10-1000 μm to enter a coagulation bath, soaking in the coagulation bath for 30-200 minutes to solidify the fibers, collecting the fibers by vacuum filtration, and make them staying at a room temperature for 5-30 hours and vacuum drying at 60° C. to obtain a film formed by graphene oxide fibers;(3) dispersing the film obtained in the step (2) in a mixture of water and ...

POLYIMIDE-BASED COMPOSITE CARBON FILM WITH HIGH THERMAL CONDUCTIVITY AND PREPARATION METHOD THEREFOR

The present invention discloses a polyimide-based composite carbon film with high thermal conductivity and a preparation method therefor. The preparation method includes: uniformly coating the surface of a polyimide-based carbon film with an aqueous graphene oxide solution, and then covering the same with another polyimide-based carbon film uniformly coated with an aqueous graphene oxide solution; repeating such operation; after the polyimide-based carbon films are dried, bonding the polyimide-based carbon films by means of graphene oxide so as to form a thick film; bonding the polyimide-based carbon films more tightly by means of further low-temperature hot pressing; and finally, obtaining a thick polyimide-based carbon film with high thermal conductivity by repairing defects by means of low-temperature heating pre-reduction and high-temperature and high-pressure thermal treatment. The thick polyimide-based carbon film with high thermal conductivity has a thickness greater than 100 μm and an in-plane thermal conductivity of even reaching 1700 W/mK or above. 1. A polyimide-based composite carbon film with high thermal conductivity , characterized by having a thickness greater than 100 μm , with a porosity ranged from 10% to 40% and without delamination , wherein a space between every two adjacent graphite sheets is less than 20 nm.2. A preparation method for the polyimide-based composite carbon film with high thermal conductivity according to claim 1 , comprising the following steps:(1) preparing an aqueous graphene oxide solution having a concentration of 1 mg/mL to 10 mg/mL with a graphene oxide having an average size greater than 50 μm;(2) treating a polyimide-based carbon film with an oxygen plasma to make the polyimide-based carbon film hydrophilic;(3) compounding a plurality of polyimide-based carbon films resulted in step 2, that is, uniformly coating surfaces of the polyimide-based carbon films with the graphene oxide solution resulted in step 1, and then ...

BINDER AND LITHIUM ION BATTERY USING THE SAME

The present application discloses a binder for a lithium ion battery, which comprises a polymer obtained through emulsion polymerization of a monomer in the presence of a reactive emulsifying agent. The binder is used in fabrication of a lithium ion electrode plate, whereby a thin film formed on the surface of an electrode membrane and fine channels formed in the electrode membrane with the use of a conventional emulsifying agent during the electrode membrane-forming process are eliminated, and the lithium ion conductivity of the electrode membrane is improved. Meanwhile, with the use of the reactive emulsifying agent, the bonding effect of the binder and the stability of the electrode membrane are improved, thereby greatly improving the charging rate and cycle life of the lithium ion battery. 3. The binder for a lithium ion battery according to claim 2 , wherein R claim 2 , R claim 2 , R claim 2 , R claim 2 , R claim 2 , R claim 2 , R claim 2 , R claim 2 , Rand Rare all hydrogen.4. The binder for a lithium ion battery according to claim 1 , wherein the reactive emulsifying agent is selected from at least one of an allyl hydroxyalkyl sulfonate claim 1 , an allyloxy alkylphenoxy polyoxyethylene ether sulfate claim 1 , an allyloxy sulfonate claim 1 , an acrylamido sulfonate claim 1 , a maleate and a derivative thereof claim 1 , and an allyl alkyl succinate sulfonate.5. The binder for a lithium ion battery according to claim 1 , wherein the weight ratio of the reactive emulsifying agent to the monomer is 1-3:100.6. The binder for a lithium ion battery according to claim 1 , wherein the polymer has a glass transition temperature of 0-50° C.7. The binder for a lithium ion battery according to claim 1 , wherein the polymer has a weight average molecular weight of 300-1 claim 1 ,500 kDa.8. The binder for a lithium ion battery according to claim 1 , wherein the binder has a solid content of 25-50 wt %.9. An electrode plate claim 1 , comprising at least one of a binder ...

METHOD, A DEVICE AND A MEDIUM FOR OBTAINING AND PROVIDING ACCESS INFORMATION OF A WIRELESS ACCESS POINT

Disclosed are a method, a device and a medium for obtaining and providing access information of a wireless access point. The method comprises: searching for wireless access points to obtain identification information of one or more wireless access points; determining whether mobile data is available; if yes, sending an access information query request via mobile data, wherein the access information query request comprises the identification information of the one or more wireless access points; if no, sending a query request short message via a short message channel, wherein the query request short message comprises the identification information of the one or more wireless access points; receiving access information of the one or more wireless access points returned by a network device in response to the access information query request or the query request short message. 1. A method for obtaining access information of a wireless access point at a user equipment , comprising:searching for wireless access points to obtain identification information of one or more wireless access points;determining whether mobile data is available;if yes, sending an access information query request via mobile data, wherein the access information query request comprises the obtained identification information of the one or more wireless access points;if no, sending a query request short message via a short message channel, wherein the query request short message comprises the identification information of the one or more wireless access points; andreceiving access information of the one or more wireless access points which is returned by a network device in response to the access information query request or the query request short message.2. The method as recited in claim 1 , wherein the step of determining whether mobile data is available comprising:determining whether mobile data of the user equipment is available;if yes, determining that the mobile data is available;if no, ...

Cloud Platform Application-Orientated Service Recommendation Method, Device, and System

A cloud platform application-orientated service recommendation method includes obtaining service status information of a cloud platform, and obtaining a target service type, where the target service type is a service type required by a target application, and the target application is an application that runs on the cloud platform and requires service recommendation. The method further includes obtaining, according to the service status information, a service that matches the target service type, and using the service as a to-be-recommended service. 1. A cloud platform application-orientated service recommendation method , wherein the method comprises:obtaining service status information of a cloud platform, wherein the service status information comprises services respectively used by all applications on the cloud platform and further comprises running statuses of the services;obtaining a target service type, wherein the target service type is a service type required by a target application, and wherein the target application is an application that runs on the cloud platform and requires service recommendation; andobtaining, according to the service status information, a service that matches the target service type, and using the service as a to-be-recommended service.2. The method according to claim 1 , wherein the obtaining claim 1 , according to the service status information claim 1 , a service that matches the target service type claim 1 , and using the service as a to-be-recommended service comprises:generating, according to a recommendation policy configuration library, target recommendation policy dimensions corresponding to the target service type, wherein the recommendation policy configuration library comprises a correspondence between a recommendation policy dimension and a service type, the recommendation policy dimension comprises at least one service status statistical dimension, and the service status statistical dimension is used to collect ...

Graphene/nylon-6 fiber, graphene/nylon-6 fabrics, and preparation methods thereof

A high-strength high-modulus graphene/nylon-6 fiber and a preparation method thereof are provided. The fiber is obtained through processing modified graphene and caprolactam with in situ polymerization and high-speed melt spinning. A graphene/nylon-6 composite is provided, which is obtained through compositing the modified graphene, the caprolactam and an additive. Based on the composite, a graphene/nylon-6 fabric with a permanent far-infrared healthcare function and a graphene/nylon-6 fabric with an ultraviolet protective property are provided, whose far-infrared property and ultraviolet protective property will not be attenuated due to an increase of fabric washing times, having a great market potential. 122-. (canceled)23: A high-strength high-modulus graphene/nylon-6 fiber , which is obtained through processing a graphene/nylon-6 composite and an additive with high-speed melt spinning , wherein: a weight ratio of the graphene/nylon-6 composite and the additive is 100:(0-5); the graphene/nylon-6 composite consists of nylon-6 and single-layer graphene grafted with the nylon-6; the graphene/nylon-6 composite has a relative viscosity between 3.2 and 3.6; the single-layer graphene grafted with the nylon-6 has a transverse dimension larger than two micrometers; and a ratio of total weights of the graphene and the nylon-6 is (0.1-0.5): 100.24: The high-strength high-modulus graphene/nylon-6 fiber claim 23 , as recited in claim 23 , wherein: for high-speed melt spinning claim 23 , a melt temperature is 250-320° C. claim 23 , a continuous spinning speed is 1000-4000 m/min claim 23 , and a draft ratio is 4-6.25: A method for preparing a high-strength high-modulus graphene/nylon-6 fiber claim 23 , comprising steps of: uniformly mixing a graphene/nylon-6 composite and an additive with a weight ratio of 100:(0-5); then processing with high-speed melt spinning; and obtaining the high-strength high-modulus graphene/nylon-6 fiber; wherein:the graphene/nylon-6 composite is ...

Preparation method of graphene film anode material and application in aluminum ion battery

The present invention discloses a method for preparing a graphene film anode material, which includes coating a graphene oxide solution on a substrate, drying, removing the substrate, performing reduction and obtaining a graphene film with ultra-high conductivity. The present invention also provides an application of the graphene film in an aluminum ion battery, which has relatively stable battery performance in a very wide temperature range of −40° C. to 120° C., maintains complete electrochemical performance after being bent for 10,000 times, and maintains 91% performance after 250,000 cycles. The present invention has advantages of simple operation and continuous controllable production method, is suitable for large-scale production, is low in cost, improves the energy density of the aluminum ion battery while ensuring high power density, and can be used for energy storage materials and device fields which need high safety, high power density, long life and wide temperature range and flexibility. 1. A preparation method of a graphene film anode material comprising steps of:(S1) coating a graphene oxide solution with a mass percentage in a range of 0.05%-5% on a substrate, drying under a vacuum pressure of 50 KPa at 60° C., removing the substrate and obtaining a graphene oxide film; and(S2) performing chemical reduction or high-temperature thermal reduction on the graphene oxide film, and obtaining the graphene film anode material.2. The preparation method claim 1 , as recited in claim 1 , wherein: in the step of (S1) claim 1 , a solvent of the graphene oxide solution is at least one member selected from a group consisting of deionized water claim 1 , N claim 1 ,N-dimethylformamide claim 1 , N-methyl-2-pyrrolidone claim 1 , N claim 1 ,N-dimethylacetamide claim 1 , ethanol claim 1 , n-butanol and acetonitrile.3. The preparation method claim 1 , as recited in claim 1 , wherein: in the step of (S1) claim 1 , the substrate is a polyethylene film claim 1 , an aluminum ...

POSITION INFORMATION PROMPTING METHOD, DEVICE AND SYSTEM

The present invention discloses a position information prompting method, device, and system. A designated server receives from a portable locator multiple position point information obtained according to pre-set time and positioning time corresponding to each position point information, generates a movement track of the portable locator, and records the movement track; then, when the designated server receives the current position point information transmitted by the portable locator, according to the current position point information, an alert signal is generated if the current position point corresponding to the current position point information is not on the recorded movement track. A guardian holding a monitoring terminal can be ensured to know at any time whether the person being monitored and holding the portable locator is on a strange road, and thereby the safety information of the monitored person is mastered, and the user experience is enhanced. 1. A position information displaying method , characterized in the method comprises:a server receiving and recording position point information transmitted regularly by a portable locator, the position point information comprising information for positioning a position point of the portable locator;determining a location area corresponding to the position point information according to the position point information;making statistics of the number of position points corresponding to the position point information in the location area among recorded position point information;marking the location area or position points in the location area if the number of the position points exceeds a threshold;displaying the marked location area or position points in the location area in an electronic map.2. The method according to claim 1 , characterized in that claim 1 , the displaying the marked location area or position points in the location area in an electronic map comprises:displaying the marked location area or ...

FINGERPRINT IDENTIFICATION APPARATUS

A fingerprint identification apparatus includes a cover plate, an optic fingerprint identification device, and an adhesive. The optic fingerprint identification device has a light-transmitting window. The adhesive is disposed between the cover plate and the optic fingerprint identification device, and a projection of the adhesive on the cover plate surrounds a projection of the light-transmitting window on the cover plate. 1. A fingerprint identification apparatus , comprising:a cover plate;an optic fingerprint identification device, having a light-transmitting window; andan adhesive, disposed between the cover plate and the optic fingerprint identification device, wherein a projection of the adhesive on the cover plate surrounds a projection of the light-transmitting window on the cover plate.2. The fingerprint identification apparatus of claim 1 , wherein the adhesive claim 1 , the cover plate claim 1 , and the optic fingerprint identification device form an enclosed space.3. The fingerprint identification apparatus of claim 1 , wherein the optic fingerprint identification device comprises:a shell, wherein a portion of the shell surrounds the light-transmitting window;a light-emitting unit, disposed in the shell and configured to emit light toward a target through the light-transmitting window and the cover plate; anda photosensor, disposed in the shell and configured to sense the light reflected by the target.4. The fingerprint identification apparatus of claim 3 , wherein the portion of the shell of the optic fingerprint identification device is a portion of the optic fingerprint identification device proximate to the cover plate claim 3 , and the adhesive is disposed between the cover plate and the portion of the shell.5. The fingerprint identification apparatus of claim 3 , further comprising:a selective light-transmitting layer, disposed between the optic fingerprint identification device and the cover plate, wherein the light emitted from the light-emitting ...

METHOD AND APPARATUS OF BATTERY CHARGING

Embodiments of the present application provide a method of battery charging, which relates to the field of battery charging and is capable of effectively improving safety performance of the battery. The method includes: obtaining an anode open circuit voltage curve, an anode impedance curve, a lithium deposition potential threshold and a state of charge, corresponding to a battery; determining a current anode open circuit voltage according to the anode open circuit voltage curve and the state of charge; determining a current anode impedance according to the anode impedance curve and the state of charge; determining a current charging current according to the current anode open circuit voltage, the current anode impedance and the lithium deposition potential threshold; and charging the battery according to the current charging current. Embodiments of the present application are applicable to a rapid battery charging process. 1. A method of battery charging , comprising steps of:obtaining an anode open circuit voltage curve, an anode impedance curve, a lithium deposition potential threshold and a state of charge corresponding to a battery;determining a current anode open circuit voltage according to the anode open circuit voltage curve and the state of charge;determining a current anode impedance according to the anode impedance curve and the state of charge;determining a current charging current according to the current anode open circuit voltage, the current anode impedance and the lithium deposition potential threshold; andcharging the battery with the current charging current.2. The method according to claim 1 , wherein the step of determining the current charging current according to the current anode open circuit voltage claim 1 , the current anode impedance and the lithium deposition potential threshold comprises:{'sub': a', 'a, 'determining the current charging current I according to a formula I=(U−η)/R;'}{'sub': a', 'a, 'Uis the current anode open circuit ...

Fire-Extinguishing Composition

The present invention discloses a fire-extinguishing composition consisting of substances having the following mass percentages: an aromatic organic acid compound, 20% to 90%; an alcohol-based compound, 10% to 80%; the fire-extinguishing composition produces a great quantity of substances available for fire extinguishing by utilizing the high temperature from combustion of a pyrotechnic agent. The aromatic organic acid compound and the alcohol-based compound of the present invention may undergo sublimation by endothermic process, decomposition and reaction between each other at the high temperature, releasing a great quantity of fire-extinguishing substances to carry out the fire extinguishing; the fire-extinguishing composition of the present invention compensates for the loss in the performance of an aerosol generating agent caused by a general cooling layer, and also enhances the fire-extinguishing performance of the entire fire-extinguishing product, while reducing the temperature at a nozzle of the product; the sediment of the present fire-extinguishing composition has low hygroscopicity and high insulation resistance, which is suitable for electric places without causing corrosion of and other adverse effects on the electrical equipment. 1. A fire-extinguishing composition , wherein the fire-extinguishing composition consists of substances having the following mass percentages:an aromatic organic acid compound 20%-90%an alcohol-based compound 10%-80%the fire-extinguishing composition produces a great quantity of substances available for fire extinguishing by utilizing the high temperature from combustion of a pyrotechnic agent.2. The fire-extinguishing composition according to claim 1 , wherein the aromatic organic acid compound is a monobasic aromatic organic acid compound and/or a dibasic aromatic organic acid compound.3. The fire-extinguishing composition according to claim 2 , wherein the monobasic aromatic organic acid compound comprises: one or more of 2 ...

LITHIUM-ION BATTERY

The present disclosure provides a lithium-ion battery. The lithium-ion battery includes: a positive electrode plate including a positive current collector and a positive conductive membrane which is formed on the surface of the positive current collector; a negative electrode plate including a negative current collector and a negative conductive membrane which is formed on the surface of the negative current collector; a separator; an electrolyte; and a packaging foil. The compacted density of the positive conductive membrane is at a range from 3.9 g/cmto 4.4 g/cm; the compacted density of negative conductive membrane is at a range from 1.55 g/cmto 1.8 g/cm; the ratio of the capacity of the negative active material to the capacity of the positive active material is at a range from 1 to 1.4. 1. A lithium-ion battery comprising:a positive electrode including a positive current collector and a positive conductive membrane which is formed on the surface of the positive current collector by coating, drying and compacting a positive mixture slurry containing a positive active material, a positive conductive additive and a positive binder;a negative electrode including a negative current collector and a negative conductive membrane which is formed on the surface of the negative current collector by coating, drying and compacting a negative mixture slurry containing a negative active material, a negative conductive additive and a negative binder;a separator;an electrolyte; anda packaging foil; [{'sup': 3', '3, 'the compacted density of the positive conductive membrane is at a range from 3.9 g/cmto 4.4 g/cm;'}, {'sup': 3', '3, 'the compacted density of the negative conductive membrane is at a range from 1.55 g/cmto 1.8 g/cm;'}, 'the ratio of the capacity of the negative active material to the capacity of the positive active material is at a range from 1 to 1.4, the charging rate of said lithium-ion battery is at a range from 1.3 C to 5 C, wherein the capacity of negative ...

Planar heating structure

A planar heating structure is disclosed. The planar heating structure includes a glass substrate layer, a nanometallic transparent conductive layer, and a first passivation layer. The nanometallic transparent conductive layer is disposed on the glass substrate layer and receives a voltage to generate heat energy. The first passivation layer is disposed on the nanometallic transparent conductive layer and completely covers the nanometallic transparent conductive layer.

Paper ball-like graphene microsphere, composite material thereof, and preparation method therefor

A method of mixing an additive with a solvent for lubrication of magnetic recording media

A process for mixing a hexaphenoxycyclotriphosphazene or phosphazene derivative additive with a perfluorohexane or fluorocarbon solvent to create a mixture is disclosed. The additive and solvent are mechanically or thermally mixed under certain conditions effective to substantially dissolve the additive in the solvent. Also disclosed is the resulting composition and a process for adding the resulting additive/solvent mixture to an additive-depleted luber bath during manufacturing to replenish the additive concentration in the bath.

Method for preparing composites on basis of graphene bonding

The invention utilizes swelling and fusion effects of graphene oxide in a solvent to implement cross-linked bonding of a graphene material itself and materials such as polymers, metal, paper, glass, carbon materials, and ceramics. The present invention not only overcomes the shortcoming in traditional adhesives of residual formaldehyde, but also has short drying time, high bonding strength and high corrosion resistance. The present invention is widely applied in the fields of aviation, aerospace, automobiles, machinery, construction, chemical, light industry, electronics, electrical appliances, and daily life, etc.

Digital clamp meter and automatic measurement method thereof

A digital clamp meter includes a common input, a voltage/resistance input, a current transformer, a voltage/resistance measuring circuit, an AC measuring circuit, a MPU and a displayer. A detecting input of the voltage/resistance measuring circuit is connected to the voltage/resistance input, a detecting output of the voltage/resistance measuring circuit is connected to a signal input of the MPU, and a controlled terminal of the voltage/resistance measuring circuit is connected to a controlling output of the MPU. The signal output of the MPU is connected to the displayer. The common input is grounded. A detecting input of the AC measuring circuit is connected to a secondary winding of the current transformer, a detecting output of the AC measuring circuit is connected to the signal input of the MPU, and a controlled terminal of the AC measuring circuit is connected to the controlling output of the MPU.

Self-diagnosis method for communication protocol of security-level instrumentation and control system of nuclear power plant

Method and apparatus of battery charging

Method for improving cycle performance of battery, and electronic apparatus

A method for improving cycling performance of a battery includes, in a first stage, charging the battery with a first-stage current until a voltage of the battery reaches a first-stage voltage value and in a second stage, charging the battery with a second-stage current until the voltage of the battery reaches a second-stage voltage value. The second-stage voltage value is greater than the first-stage voltage value, and the second-stage current is less than the first-stage current.

Planar heating structure

A planar heating structure is disclosed. The planar heating structure includes a glass substrate layer, a nanometallic transparent conductive layer, and a first passivation layer. The nanometallic transparent conductive layer is disposed on the glass substrate layer and receives a voltage to generate heat energy. The first passivation layer is disposed on the nanometallic transparent conductive layer and completely covers the nanometallic transparent conductive layer.

Shift register and driving method thereof, and display apparatus

A shift register, a method for driving the shift register and a display apparatus are provided. The shift register includes a noise reduction control circuit and a pull-up node noise reduction circuit. The noise reduction control circuit is connected with a first clock signal terminal that receives a first clock signal, a gate drive signal output terminal that outputs a gate drive signal, a noise reduction control terminal, and a noise reduction control node. The pull-up node noise reduction circuit is connected with the noise reduction control circuit, the noise reduction control terminal, and a pull-up node.

6-aryl amino pyridone formamide compound crystal and preparation method therefor

Provided are 6-aryl amino pyridone formamide compound crystal and a preparation method therefor. In the present invention, 6-(2-chlorine-4-iodopheny amino)-N-(2-hydroxyl ethoxyl)-5-methyl-4-oxo-4,5-dihydrofuran[3,2-c]pyridine-7-formamide is dissolved in a polar aprotic solvent, a second solvent is added for recrystallization, and a crystal is obtained. The crystallization method is simple to operate and conducive for industrial production. The produced crystal has high purity, good stability, and is conducive for pharmaceutical production and storage.

Graphene fiber and preparation method therefor

Interactive toy

Laptop stand

Paper ball-like graphene microsphere, composite material thereof, and preparation method therefor

The present invention provides a paper ball-like graphene microsphere, a composite material thereof, and a preparation method therefor. Such paper ball-like graphene microspheres are obtained by chemically reducing graphene oxide microspheres to slowly remove oxygen-containing functional groups on the surface of the graphene oxide to avoid the volume expansion caused by rapid removal of the groups, thereby maintaining a tight bond between graphene sheets without separation; and removing the remaining small number of oxygen-containing functional groups and repairing defect structures in the graphene oxide sheets by means of high temperature treatment, such that the graphene structure becomes perfect at an ultrahigh temperature (2500 to 3000° C.), thereby further improving the bonding ability between the graphene sheets in the microspheres and achieving a dense structure.

System and method for performing ellipsometric measurements on an arbitrarily large or continuously moving sample

A method for calibrating an apparatus for ellipsometric measurements performed on an arbitrarily large or continuously moving sample, using a visible sample reference frame, and one or more laser sources in order to calibrate the ellipsometer for variations in the distance between the ellipsometer apparatus and the sample of interest. Included are techniques for projecting a first laser beam spot from an incident laser source onto a sample, then analyzing the position of the first laser beam spot relative to the center of the sample reference frame using human-aided measurements and confirmations and/or computer vision techniques. Then adjusting pivot points and/or apparatus-to-sample distance to achieve a first beam spot being located about the center of the sample reference frame, and concurrently intersecting the plane of the sample. Other techniques include changing the incidence and reflectance angle using a semi-circular track arc design with a stepping motor activating each goniometer arm.

Charging method, charging device, and computer-readable medium for charging a battery

A charging method is proposed to include the steps of: in a first stage of charging, charging a battery with a first-stage current until a voltage of the battery reaches a first-stage voltage value; and in a second stage of charging, charging the battery with a second-stage current until the voltage of the battery reaches a second-stage voltage value which is greater than the first-stage voltage value. The second-stage current is smaller than the first-stage current.

Programming building block

The present invention provides a programming building block, which includes an instruction reading building block (100) and an instruction building block (200). The instruction reading building block (100) reads command instructions in the instruction building block (200). The command instructions include an instruction for setting a mode, an instruction for setting a behavior in the mode, an instruction for setting a behavior, or an upgrade instruction. A priority is set between the plurality of instructions for setting the mode. Compared with the prior art, the present invention has the advantage that programming can be performed without an electronic display device.

? fire extinguisher composition?

patente de invenção: ?composição extintora de incêndio? a presente invenção divulga uma composição extintora de incêndio consistindo de substâncias com as seguintes porcentagens em massa: um com-posto de ácido orgânico aromático, 20% a 90%; um composto à base de álcool, 10% a 80%; a composição extintora de incêndio produz uma grande quantidade de substâncias disponíveis para a extinção de incêndios, utilizando a alta tempe-ratura da combustão de um agente pirotécnico. o composto de ácido orgânico aromático e o composto à base de alcool da pre-sente invenção podem sofrer sublimação por processo endotémico, decomposi-ção e reação entre si sob temperatura elevada, liberando uma grande quantidade de substâncias extintoras de incêndio para realizar a extinção de incêndio; a composição extintora de incêndio da presente invenção compensa a perda no desempenho de um agente gerador de aerossol causada por uma camada de resfriamento geral, e também melhora o desempenho de extinção de incêndio de todo o produto extintor de incêndio, enquanto reduz a temperatura em um bocal do produto; o sedimento da presente composição extintora de incêndio apresenta baixa higroscopicidade e alta resistência de isolamento, que é adequado para locais elétricos sem causar corrosão e outros efeitos adversos no equipamento elétrico. patent: "fire extinguisher composition" The present invention discloses a fire extinguishing composition consisting of substances having the following mass percentages: a compound of aromatic organic acid, 20% to 90%; an alcohol-based compound, 10% to 80%; The fire extinguishing composition produces a large amount of available fire extinguishing substances using the high combustion temperature of a pyrotechnic agent. The aromatic organic acid compound and the alcohol-based compound of the present invention may undergo sublimation by endothermic process, decomposition and reaction with each other at elevated temperature, releasing a large amount of fire ...

Cloud platform application-oriented service recommendation method, device and system

带有减速装置的汽车驱动桥

本申请提供了一种带有减速装置的汽车驱动桥，包括电机、减速装置和桥壳；减速装置包括减速器壳体和设置于减速器壳体内的一轴、二轴；减速器壳体与桥壳通过螺栓相连接；一轴上设有一级主动齿轮，二轴上设有一级从动齿轮和二级主动齿轮，一轴与电机轴相连接；桥壳内设有差速器，差速器与二级从动齿轮相连接。所述汽车驱动桥用减速装置取代变速器，直接利用电机调速，无需换挡，从而降低成本。

A transcriptional regulator specifically responding to d-2-hydroxyglutarate and application thereof

A transcriptional regulator specifically responding to D -2-hydroxyglutarate ( D -2-HG) and its application in the biological detection of D -2-HG. Wherein the transcriptional regulator is named DhdR and the nucleotide sequence is shown as SEQ ID NO: 1. The D -2-HG biosensors B D2HG -0 and B D2HG -1 are constructed using the transcriptional regulator DhdR and can detect biological samples containing D -2-HG.

Artificial intelligence assisted production advisory system and method

A method includes receiving first data and building a first model of a well based at least partially upon the first data. The method also includes receiving second data and building a second model including a network of flowlines based at least partially upon the second data. At least one of the flowlines is connected to the well. The method also includes combining the first model and the second model to produce a combined model. The method also includes calibrating the combined model to produce a calibrated model. Calibrating the combined model includes receiving measured data, running a simulation of the combined model to produce simulated results, and adjusting a calibration parameter to cause the simulated results to match the measured data. The calibration parameter includes a productivity index of a fluid flowing out of the well. The method also includes updating the calibrated model to produce an updated model.

Independent free-standing graphene film and method of preparing the same

Proposed is a method of preparing an independent free-standing graphene film. The graphene film is obtained by means of suction filtration of graphene oxide into a film, solid phase transfer, chemical reduction and the like steps. The graphene film is formed by means of physical cross-linking of a single layer of oxidized/reduced graphene oxide. The graphene film has a thickness of 10-2000 atomic layers. The graphene oxide film has a small thickness and a large number of defects inside, so that it has good transparency and excellent flexibility. On the basis of the transfer film-forming method above, an independent free-standing wrinkled graphene film having a nanoscale thickness is prepared by using a poor solvent and a special high temperature annealing process, and an independent free-standing foamed graphene film having a nanoscale thickness is obtained by using a film-forming thickness and a special high temperature annealing process.

Resonator and method of preparing a resonator

The present application provides a resonator and a method of preparing same, and relates to the field of semiconductor technologies. The method includes: providing a device wafer, wherein the device wafer includes a first substrate and a piezoelectric layer, a bottom electrode, and a first mass loading layer formed in sequence on the first substrate; forming, on the bottom electrode, a sacrificial layer covering the first mass loading layer; forming a supporting layer on one side of the device wafer with the sacrificial layer; forming a second substrate on the supporting layer through a bonding process; removing the first substrate to expose the piezoelectric layer; forming a top electrode and a second mass loading layer in sequence on the piezoelectric layer; and releasing the sacrificial layer to form a cavity between the first mass loading layer and the supporting layer. Therefore, the resonator is correspondingly tuned by controlling a ratio of an area of the first mass loading layer in an effective working region of the resonator to an area of the second mass loading layer in the effective working region of the resonator, thereby manufacturing resonators with different resonant frequencies, effectively avoiding loss caused by tuning with an external element, and ensuring good performance of the resonator.

Pulse ranging device and method, and automatic cleaning apparatus having same

Static crushing directional anchor withdrawal method at end of large-mining-height working face

For the problem of difficult roof anchor withdrawal at the end of a working face, a static crushing directional anchor withdrawal method at the end of a large-mining-height working face is provided. The method includes the following steps: designing key parameters of boreholes for static crushing, including a borehole position, a spacing between boreholes, a borehole depth, and a borehole diameter at the end of a working face; then determining parameters of a static crushing agent grouting technology device for the construction of a static crushing process; and carrying out an anchor withdrawal operation at the end. The method provided by the present disclosure can solve the problem of difficult roof anchor withdrawal at the end of a working face, is beneficial to shortening the hanging roof distance of the working face, preventing the sudden caving of hanging roofs at the upper and lower corners of the working face and the potential safety hazard caused by gas overrun, and guaranteeing the normal use of the mining roadway. The method used in the present disclosure has the advantages of no vibration, no flying stone, no shock wave, no noise, no toxic gas pollution and the like.

スパッタリングターゲット材拡散溶接アセンブリおよびその方法

【課題】スパッタリングターゲット材を加工・製造する際、プロセス、手順、および加工、製造コストを軽減するためのスパッタリングターゲット材拡散溶接アセンブリおよびスパッタリングターゲットの拡散溶接方法を提供する。【解決手段】拡散溶接アセンブリは、ターゲット材アセンブリおよびカバープレートを含み、ターゲット材アセンブリは、ターゲット材１１およびバックプレート１２を含み、バックプレートの上部および下部表面の少なくとも一方は、凹型溝を備え、ターゲット材は凹型溝内に埋め込まれた後バックプレートと同一平面上にある。バックプレートの凹型溝の表面にカバープレートを覆い、バックプレートとカバープレートの接触面または周縁部を封止させ、ターゲット材アセンブリとカバープレートを一体にし、ターゲット材をバックプレートとカバープレートによって形成される密閉格納キャビティ内に密閉させる。【選択図】図４

Vitamin d3 complex and preparation method and application thereof

OF THE DISCLOSURE Disclosed are a vitamin D3 complex and a preparation method and application thereof, belonging to the technical field of pharmaceutical preparations. The vitamin D3 complex of the present disclosure includes vitamin D3, a porous carrier material and an antioxidant; the antioxidant and vitamin D3 are loaded inside the porous carrier material, which can effectively improve the stability of vitamin D3 and prevent vitamin D3 from being degraded during the preparation process and product storage. The present disclosure provides the composition and the preparation method of the above vitamin D3 complex. The vitamin D3 complex can be further prepared into granules, tablets and chewable tablets, and the content of vitamin D3 in the complex can be adjusted as required to meet the requirements of the content uniformity of the vitamin D3 in the preparation product.

Dampproof air-tight door

Disclosed is a dampproof air-tight door, including a door body and a seal ring arranged on the door body, wherein an air bag is arranged on a side of the door body, a limiting mechanism is arranged on a side of the air bag close to the door body, an air pipe is assembled on an outer side of the air bag, one end of the air pipe penetrates through the door body and is provided with a micro air pump, the micro air pump is arranged on an outer side of the door body, and an electric air valve is arranged on a side surface of the air pipe. It is convenient to push the seal ring to compensate a worn part thereof, thereby reducing decline in the airtightness of the seal ring as a result of wear.

Motion platforms, medical beds, and medical devices

A motion platform, a medical bed, and a medical device are provided. The motion platform may include a moveable plate, a first driving mechanism, a second driving mechanism, and a fulcrum mechanism. The first driving mechanism and the second driving mechanism may be connected to the moveable plate at a first support point and a second support point, respectively. The fulcrum mechanism may be connected to the moveable plate at a third support point. The first support point, the second support point, and the third support point may be non-collinear. The first driving mechanism and the second driving mechanism may be configured to cause the moveable plate to move in at least two degrees of freedom relative to the third support point.

Negative pressure wave monitoring based leak detection method of multipath pipeline network

The present invention discloses a negative pressure wave monitoring based leak detection method of a multipath pipeline network, including: analyzing a propagation process of a negative pressure wave in a single straight pipeline to obtain a calculated result of a sound velocity in a thin-walled pipe marking the pressure sensors at known disposing positions on a pipeline network map; linearly interpolating position coordinates of key nodes in the pipeline network to extend pipeline network information; resolving the time that a negative pressure wave signal generated by a leak propagates to each disposed RTUs to form a data column; and simulating a leak situation, detecting a pipeline pressure waveform by using the RTUs in a current network, and determining a point corresponding to the data column closest to a measured propagation time delay in the time delay standard library as a leak point, and outputting the position of the leak point.

Método para preparar um material nanocompósito de grafenopoliéster

a presente invenção revela um material compósito de grafeno e um método de preparação do mesmo. adicionando-se microesferas de óxido de grafeno pregueadas e um catalisador a um precursor, permite-se que as microesferas de óxido de grafeno pregueadas sejam altamente dispersas e gradualmente dissociadas em folhas de óxido de grafeno de camada única durante o processo de policondensação, em que as moléculas parcialmente esterificadas reagem com o grupo hidroxila e carboxila na superfície de folhas de óxido de grafeno para formar uma ligação química, e o óxido de grafeno é termicamente reduzido, para obter finalmente um material compósito que compreende pet e folhas de grafeno que têm pet enxertado à superfície. o método da presente invenção evita o empilhamento de óxido de grafeno no estágio de esterificação, economiza grandemente o custo e melhora a eficiência de produção. o grafeno obtido é bem disperso na matriz de polímero, e a formação de ligações covalentes entre os dois materiais melhora de modo eficaz as propriedades mecânicas, a condutividade elétrica e outros desempenhos do sistema. o processo de preparação envolvido na presente invenção é simples e eficaz, o custo é economizado de modo eficaz, e o material compósito obtido tem propriedades superiores, e é útil na preparação de panos de poliéster de alto desempenho.

Adaptive caulking monitoring device and caulking reset method

The present invention relates to the technical field of reinforcement of building structures, particularly to an adaptive caulking monitoring device and a caulking reset method. The adaptive caulking monitoring device comprises: a buffer assembly, comprising two rows and two columns of gas-filled columns (1), wherein a reset gas hole (101) is formed on a side wall of each of the gas-filled columns, the reset gas hole is connected to a reset gas tube (2); two adaptive plates, which are respectively a first adaptive plate (4) and a second adaptive plate (5) and which are symmetrically distributed on two sides of the buffer assembly, wherein the first adaptive plate and the second adaptive plate both comprise a panel (401), resilient columns (402) and springs (403), the panel comprises a bottom cover (4011) and a top cover (4012), multiple rows and columns of resilient column holes (4013) are arranged in an array in the top cover, spring seats (4014) in one-to-one correspondence with the resilient column holes are distributed in an array in the panel, an expansion slot (4015) is arranged in each spring seat, a blowing chamber (4016) is arranged in each spring seat, a pushing member (4017) is arranged in the blowing chamber, the pushing member is adapted to press the expansion slot or press a chamber wall of the blowing chamber adjacent to its second end, and a gas channel structure communicated with each blowing chamber is arranged in the bottom cover.

Elastic adaptive caulking restoring apparatus and caulking restoring method

The present invention relates to the field of construction reinforcement technologies, and specifically to an elastic adaptive caulking restoring apparatus and a caulking restoring method. The elastic adaptive caulking restoring apparatus includes: a cushioning pad (1); and two adaptive plates (2), symmetrically distributed on two sides of the cushioning pad (1), where each adaptive plate includes a panel (201), elastic posts (202), and springs (203), the panel includes a bottom cover (2011) and a top cover (2012), a plurality of rows and a plurality of columns of elastic post holes (2013) are provided in an array in the top cover (2012), spring seats (2014) having a one-to-one correspondence with the elastic post holes (2013) are distributed in an array in the panel (201), an expansion groove (2015) is provided in each spring seat (2014), an air blow cavity (2016) is provided in each spring seat (2014), a push member (2017) is arranged in the air blow cavity (2016), the push member (2017) is movable in a length direction of the air blow cavity (2016), the push member (2017) is configured to press the expansion groove (2015) or press a cavity wall of the air blow cavity (2016) close to a second end of the air blow cavity, an air passage structure in communication with each air blow cavity is arranged in the bottom cover (2011), the elastic post (202) includes a post body (2021) and a post cap (2022), each spring (203) is arranged in a corresponding post body (2021), one end of the spring (203) abuts against a second end of the spring seat (2014), and the other end of the spring (203) abuts against the post cap (2022); and electromagnets (3).