摆件（多面体）

Hot press with protective device

The hot press with the protection device comprises a hot press body, positioning grooves are formed in the two sides of the bottom of an inner cavity of the hot press body, a first protection plate is arranged in an inner cavity of each positioning groove, a movable groove is formed in the bottom of each first protection plate, and a fixing mechanism is arranged in an inner cavity of each movable groove. And fixing grooves used in cooperation with the fixing mechanisms are formed in the opposite sides of the two positioning grooves correspondingly, and a hot pressing block is fixedly connected to the bottom of an inner cavity of the hot press body. Through cooperative use of the hot press body, the positioning groove, the first protection plate, the movable groove, the fixing mechanism, the fixing groove, the hot pressing block, the hot pressing plate, the protection mechanism, the first through hole, the second through hole and the third through hole, the problem that an existing hot press ...

Modified high-speed steel and preparation method and application thereof

The invention provides modified high-speed steel and a preparation method and application thereof, and belongs to the technical field of high-speed steel. The modified high-speed steel comprises the following components in percentage by mass: 95%-99.9% of nitrogen-containing high-speed steel and 0.1%-5% of titanium carbide; the nitrogen-containing high-speed steel comprises the nitrogen-containing high-speed steel obtained by conducting ion nitriding treatment on a high-speed steel base body, the mass percentage content of carbon in the high-speed steel base body is 0.7%-2%, the mass percentage content of non-ferrous metal elements in the high-speed steel base body is 10%-38%, and titanium carbide comprises titanium carbide obtained by conducting ion carburizing treatment on titanium powder. The nitrogen-containing high-speed steel and titanium carbide are matched for use, so that the hardness, strength and wear resistance of the modified high-speed steel can be improved, and the service ...

压力传感器（鞋垫式）

调味罐（蘑菇）

Precast slab plugging device for track panel well

The invention provides a track panel well prefabricated slab plugging device, and relates to the field of track traffic construction, the track panel well prefabricated slab plugging device comprises a tunnel middle plate, the tunnel middle plate is arranged on the middle side in a tunnel, a middle partition wall is arranged on the middle side of the bottom end face in the tunnel, and scaffolds are erected on the bottom end face in the tunnel and located on the left side and the right side of the middle partition wall; prefabricated middle plates are evenly placed in the track hoisting well mouth on the tunnel middle plate, and the upper portions of the left side and the right side of each prefabricated middle plate are each connected with a reinforcing steel bar in an inserted mode. Through the arrangement of the prefabricated middle plate, the prefabricated middle plate can be prefabricated in advance, so that favorable conditions are created for construction of an overhead line system ...

Low-cost indoor mobile robot laser target positioning method and system, storage medium and terminal

The invention discloses a low-cost indoor mobile robot laser target positioning method and system, a storage medium and a terminal. Comprising the steps that laser targets are arranged around the mobile robot in a difference mode in advance, and the distance between every two adjacent laser targets is calibrated; acquiring specific distance feature information provided by the laser target, and extracting the specific distance feature information into real-time gradient feature information; the gradient feature information extracted in real time is preprocessed, and the laser targets with the optimal information and the total number larger than or equal to 3 are screened out; for the screened laser targets, distance information between the adjacent laser targets is calculated through the cosine law; the obtained distance information is matched with the calibrated distance information, and the real ID of the laser target scanned in real time is calculated; and finally, outputting the position ...

DEVICE-TO-DEVICE (D2D) COMMUNICATION METHOD AND RELEVANT DEVICE

Disclosed are a device-to-device (D2D) communication method and relevant device, wherein the method comprises: a base station sending first control signalling to a first user equipment, sending second control signalling to a second user equipment and sending N third control signalling respectively to N third user equipments; receiving first channel quality feedback signalling fed back by the first user equipment, second channel quality feedback signalling fed back by the second user equipment, and N third channel quality feedback signalling fed back by the N third user equipments; detecting a channel quality between a D2D user equipment and the base station; determining, based on various items of feedback signalling and the channel quality between the D2D user equipment and the base station, a D2D communication mode; and determining, in the common multiplexing mode and in the coordination multiplexing mode, a target third user equipment pairing with the D2D user equipment. As a result, ...

AUTOMATIC POSITIONING AND PRINTING SYSTEM AND METHOD FOR ELECTRODE PRINTING OF SOLAR CELL SHEET

An automatic positioning and printing system and method for electrode printing of a solar cell sheet. The system comprises: a transparent glass plate, configured to bear a solar cell sheet; an electrode printing device, positioned above the transparent glass plate and configured to conduct electrode printing on the solar cell sheet; a visual positioning module, positioned directly below the transparent glass plate and configured to acquire position information of the solar cell sheet; and a main control module, configured to adjust printing position of the electrode printing device according to the position information sent by the visual positioning module.

METHOD USING THREE-CONTROL-POINT TWIN CURVES FOR DETERMINING A MINERAL AGGREGATE GRADATION STRUCTURE

A method using three-control-point twin curves for determining a mineral aggregate gradation structure comprises the following steps: (1) determining, on the basis of the nature of the mixture, three control points which are, respectively, the nominal greatest particle diameter and pass rate thereof, the nominal least particle diameter and pass rate thereof, and the coarse/fine discontinuity point nominal particle diameter and pass rate thereof; (2) choosing, for the coarse aggregate gradation curve and fine aggregate gradation curve respectively, a power function model, an exponential function model and a logarithmic function model; (3) measuring the tamping density and voids in mineral aggregate (VMA) of the mixture and selecting, according to engineering requirements, a coarse aggregate gradation and a fine aggregate gradation. The method allows for rational selection of gradation formats on the basis of proportional design requirements for asphalt mixtures and enables realization of ...

DISTRIBUTION NETWORK TOPOLOGY ERROR IDENTIFICATION ALGORITHM

A distribution network topology error identification algorithm, comprising: calculating the voltage of a coupling node to which each load belongs, and obtaining a coupling node voltage sample space to which the loads belong; calculating the current of a branch to which each load belongs, and obtaining a branch current sample space to which the loads belong; respectively calculating voltage correlation coefficients and current correlation coefficients of different loads according to the obtained voltage and current sample spaces; and completing calibration and correction of a distribution network topology.

METHOD FOR OPTICAL DRIVING CHIP TO CONTROL LIGHT-EMITTING DEVICE, AND OPTICAL DRIVING CHIP THEREFOR

A method for an optical driving chip to control a light-emitting device, and an optical driving chip therefor. A receiving unit (101) of the optical driving chip (4) obtains data to be sent (S101), and the data to be sent is transferred to an executing unit (102) of the optical driving chip (4), and the executing unit (102) converts the data to be sent into a driving signal according to a control parameter set, the driving signal being used for controlling the light-emitting device to emit visible light (S102). Since the optical driving chip (4), according to the control parameter set, converts the data to be sent into the driving signal to control the light-emitting device, and does not progressively obtain single control parameters to control the light-emitting device, the problem of a delay does not occur when the optical driving chip (4) controls the light-emitting device, and the data to be sent is encoded, ensuring the reliability of data transmission.

跑鞋（石墨烯压感智能跑鞋）

Automatic plate cutting machine for leveling and cutting coil stock

The utility model discloses an automatic plate cutting machine for coil stock leveling and cutting. The automatic plate cutting machine comprises a base, an uncoiling unit, a leveling unit, a conveying unit and a clamping assembly. Two first fixing plates are fixed to the left end of the upper side of the base, the two first fixing plates are arranged in a front-back corresponding mode, a second fixing plate is fixed to the left side of the first fixing plate at the rear end, second sliding grooves are formed in the side faces of the first fixing plates, and first sliding blocks are connected into the second sliding grooves in a sliding mode. The automatic plate cutting machine comprises a base, a U-shaped fixing frame is fixed to the middle of the upper side of the base, a screw is rotatably connected to the inner side of the vertical end of the U-shaped fixing frame, a servo motor is arranged on the front side of the U-shaped fixing frame, and the front end of the screw penetrates through ...

Anti-lodging grid device for vegetable and flower breeding

An anti-lodging grid device for vegetable and flower breeding comprises a supporting rod combination, a warp rope and a weft rope. A plurality of supporting rod combinations are arranged and are connected through warp ropes and weft ropes; when the lodging-resistant grid device for vegetable and flower breeding is used, a plurality of supporting rod combinations are unfolded in two symmetrical rows, the supporting rod combinations are vertically inserted into vegetable and flower breeding fields through hammering, and lodging-resistant grids are naturally formed after warp ropes and weft ropes connected with the supporting rod combinations are unfolded; the lodging-resistant grid device for vegetable and flower breeding can be repeatedly recycled, and has the advantages of being low in use cost and avoiding environmental pollution; in addition, the anti-lodging grid device is beneficial to ventilation of vegetables and flowers, reduces diseases, and improves the yield and quality of vegetable ...

Mobile robot path planning method and system for two-dimensional code navigation, storage medium and terminal

The invention discloses a two-dimensional code navigation-oriented mobile robot path planning method and system, a storage medium and a terminal. The method comprises the steps of defining an initial node ns, a target node nd, a code list, an open list and a close list; and searching a target node nd according to the defined information, adding the target node nd into an open list, and moving to a starting point along a father node to form a path. According to the method, a reward function mentioned in node searching is based on two-dimensional code coordinates in a map, during path planning, due to the existence of the reward function, an evaluation function preferentially considers coordinate points containing two-dimensional code positions, so that the coordinates of a part of two-dimensional codes are contained in the whole path, a mobile robot can collect two-dimensional code data, and the path planning efficiency is improved. And track plotting is calibrated, so that errors are reduced ...

Display substrate and display device

The invention relates to the technical field of display, and discloses a display substrate and a display device.The display substrate is divided into a display area and a non-display area located on one side of the display area, the non-display area comprises a frame area, a bending area and a binding area, and the frame area, the bending area and the binding area are sequentially arranged away from the display area; the binding area is bent to the backlight side of the display substrate through the bending area; the display substrate comprises a rigid substrate, the rigid substrate is provided with a first surface and a second surface which are oppositely arranged, a groove is formed in the first surface of the rigid substrate, the groove is located in the frame area and extends in the first direction, and the first direction intersects with the direction, pointing to the non-display area, of the display area; the first flat layer is positioned on the first surface of the rigid substrate ...

Regional storage and rapid query method for longitude and latitude data of vehicle

The invention discloses a regional storage and rapid query method for vehicle longitude and latitude data. The method comprises the steps of firstly determining a vehicle operation range and drawing a global rectangular boundary of vehicle operation; equally dividing the boundary length and width of the global rectangle into a plurality of local rectangles; storing the number of each local rectangular area and the latitude and longitude coordinates of four vertexes; vehicle longitude and latitude data needing to be stored and the number of the longitude and latitude falling into a certain local rectangular area are bound; establishing mapping between the local rectangular area number and a vehicle longitude and latitude data memory address falling into the area; and finally, determining a query area, determining a plurality of local rectangular area frames overlapped with the query area, obtaining filtered vehicle longitude and latitude data, traversing and judging whether the filtered ...

OPTICAL SIGNAL ENCODING AND DECODING METHODS, AND DEVICE

Disclosed are optical signal encoding and decoding methods, and a device, the optical signal encoding method comprising: base-N data is sequentially read in a bitwise manner, and encoded as electrical signal units: each different digit within the base-N data is encoded as a different electrical signal unit, high and low duration periods in the electrical signal units respectively being Ti1, Ti2 … and Tij, i, j and N being natural numbers, different electrical signal units being separated by a separating flag; the electrical signal units corresponding to the base-N data form a driving signal, the driving signal being used for being outputted in the form of light. The feature of unstable terminal device light emission and flickering is solved, further improving the reliability of information transmission.

PAYMENT SYSTEM

Disclosed is a payment system. The security of the whole payment system is improved, and the security of funds within a payment process is ensured. The technical solution of the payment system is: within the whole payment system, an encryption/decryption program is respectively designed at a payment end, a consumer end and an account management server end. Multi-level multi-system encryption processing is performed on the transmission and storage of data, and the legitimacy of a hardware device of an access system is verified. The convenience and security of the payment system are improved to varying degrees in comparison with traditional magnetic card payment means and third-party account online payment means such as Alipay.

Positioning structure for steel wooden door machining

The utility model discloses a positioning structure for machining a steel wooden door, and relates to the technical field of building doors and windows. The stamping die comprises a stamping die body, rotating rollers are arranged above the front end and the rear end of the stamping die body, a third positioning strip is fixed to the rear side of the upper wall of the stamping die body, a first positioning strip and a second positioning strip are correspondingly arranged on the front sides of the left end and the right end of the third positioning strip respectively, and an electric push rod is arranged on the right side of the middle of the second positioning strip. The steel plate can be positioned through the first positioning strip, the second positioning strip and the third positioning strip, the steel plate moves along the rotating roller through the arrangement of the rotating roller, and the problems that in the prior art, when the steel plate is punched, the steel plate is placed ...

Light bar screen fixing device

The invention discloses a light bar screen fixing device which comprises a plurality of lamps, lamp control lines and at least two fixing lines are arranged between the lamps, the two fixing lines are arranged in parallel and connected with shells of the lamps in a penetrating mode, the light bar screen fixing device comprises a plurality of fastening fastener sets and U-shaped aluminum alloy, and the U-shaped aluminum alloy forms a plane structure. The fixing device is fixed on the environment supporting structure body; and the fastening fastener group crimps a fixing line of the light bar screen on the U-shaped aluminum alloy in sections. By means of the structural design of the light bar screen fixing device, efficient installation and fixation of all the lamps of the light bar screen are achieved.

Comprehensive simulation operation method and system for load declaration and clearing of electricity selling company

The invention discloses a comprehensive simulation operation method and system for load declaration and clearing of an electricity selling company, and the method comprises the steps: building a Markov decision model with the minimization of the comprehensive cost of the electricity selling company as a target according to the obtained clearing information of an electricity market; a dual-depth Q network algorithm is adopted to obtain an optimal power selling company load declaration strategy; the method comprises the following steps: constructing a market clearing model by taking minimization of the operating cost of a power system as a target and considering system constraints, unit constraints and network security constraints, performing power market clearing simulation according to an optimal power selling company load declaration strategy, and obtaining power market clearing information of a next stage; and making an optimal load declaration strategy of the electricity selling company ...

Model selection method of input reactor in alternating current servo driver of variable pitch system

The invention discloses a model selection method for an input reactor in an alternating current servo driver of a variable pitch system. The method comprises the following steps: calculating an inductance value of the input reactor based on a voltage drop proportion of the input reactor and a rated working current of the input reactor; wherein the voltage drop proportion of the input reactor is determined according to the voltage drop on each phase winding of the input reactor; the rated working current input into the reactor is 1.1-1.5 times of the rated working current of the alternating current servo driver, and the reactor is used for meeting the capacity reduction requirement of the alternating current servo driver in the high altitude environment. According to the invention, the input reactor is designed in a proper type selection range, so that the input reactor can obviously reduce the influence of the harmonic wave or surge voltage of the power grid on the AC servo driver.

Engine flameout processing method and device, computer equipment and storage medium

The invention relates to an engine flameout processing method and device, computer equipment and a storage medium. The method is applied to a vehicle control system, the vehicle control system is connected with normal power supply equipment on a corresponding vehicle, and the method comprises the steps that under the condition that it is monitored that an ignition switch is turned off, power is supplied to the vehicle control system through the normal power supply equipment; and executing a target vibration and noise reduction strategy, and timing the execution duration of executing the target vibration and noise reduction strategy based on the turn-off moment of the ignition switch until a preset duration is reached. The method can reduce the vibration noise in the vehicle when the engine stalls.

METHOD FOR INTERMITTENT PREPARATION OF LOW CONTENT TRANS-TRANS ISOMER-CONTAINING 4,4'-DIAMINODICYCLOHEXYLMETHANE

A method for intermittent preparation of 4,4'-diaminodicyclohexylmethane with low content of trans-trans isomer thereof is provided. The method comprises: a) controlling the degree of reaction by stopping the reaction when in the reaction solution excepting the solvent the content of 4,4'-diaminodiphenylmethane is 0-5 wt.% and the content of hexylhydrodiaminodiphenylmethane is 0-20 wt.%; b) separating the reaction liquid obtained from step a) by a conventional separating methods to obtain 4,4'-diaminodicyclohexylmethane with the desired purity.

Metal matrix graphene composite material and preparation method and application thereof

The invention discloses a metal matrix graphene composite material and a preparation method and application thereof. Graphene powder is subjected to electric explosion operation through an electric explosion method, generated graphene aerosol is directly released into a graphene aerosol chamber filled with argon, the graphene aerosol with the required concentration suspended in an argon medium is obtained, a circulating fan and a motor are started before the aerosol is agglomerated, and the graphene aerosol with the required concentration is agglomerated. The graphene aerosol is mixed with metal particle powder after passing through a filter screen, and interception capture, inertial deposition and diffusion deposition effects are generated in the mixing process, so that graphene is stably adsorbed on the surfaces of metal particles, and the metal matrix graphene composite material is obtained. The content of the graphene sheets uniformly dispersed on the metal matrix in the composite material ...

Vehicle-mounted multimedia file analysis method, system and device and vehicle

The invention provides a vehicle-mounted multimedia file analysis method, which comprises the following steps of: after a vehicle is started, detecting passengers in the vehicle through a passenger detection module, analyzing the filename of a multimedia file which can be read by a vehicle machine system through a filename analysis module, and if the multimedia file which meets a preset first condition exists, judging whether the multimedia file meets the preset first condition or not; and if so, shielding the multimedia file. And analyzing the file content of the multimedia file which can be read by the in-vehicle infotainment system through a file content analysis module, and if the multimedia file meeting a preset second condition exists and the number of passengers in the vehicle is detected to be greater than 1 or a juvenile is detected to exist in the vehicle, shielding the multimedia file. And displaying the unshielded multimedia file on the vehicle-mounted screen. According to the ...

DISTRIBUTION TRANSFORMER TERMINAL AND DISTRIBUTION TRANSFORMER REGION EQUIPMENT STATE MONITORING METHOD

A distribution transformer terminal and a distribution transformer region equipment state monitoring method. The distribution transformer terminal comprises: an ARM core processor, a carrier communication module, a sub-G wireless communication module, and a GPS module. The ARM core processor is connected to the carrier communication module. The carrier communication module is configured to connect to region equipment. The ARM core processor is configured to identify the phase of the region equipment and the region to which said equipment belongs. The ARM core processor is further connected to the sub-G wireless communication module. The sub-G wireless communication module is configured to connect to the region equipment. The ARM core processor is configured to obtain the running state and fault information of the region equipment by means of the sub-G wireless communication module. The ARM core processor is further connected to the GPS module. The GPS module is configured to connect to ...

Automatic change pallet separating mechanism of sprout cultivation equipment

... 本实用新型公开自动化育秧设备的分盘机构，包括机架、触发运输装置以及触发分盘装置；触发运输装置包括第输送装置以及第触发器，第输送装置安装在机架上，第触发器与第输送装置连接；触发分盘装置包括第二输送装置、秧盘升降装置、第二触发器，第二输送装置位于机架上，且位于第输送装置的后方，第二触发器与第二输送装置连接，秧盘升降装置与机架连接，且位于第二输送装置的下方，设置第触发器，用于驱动第输送装置运转，实现秧盘移动，秧盘移动到触发分盘装置下端，秧盘升降装置上升，第二输送装置静止，此时，第二触发器受触发，第二输送装置工作，秧盘升降装置下降，完成了自动分盘；效率较高，劳动强度低。 ...

Non-indentation corrugated paper bonding assembly and corrugated paper production equipment

The invention relates to the technical field of corrugated paper production equipment, in particular to a non-indentation corrugated paper bonding assembly and corrugated paper production equipment. The non-indentation corrugated paper bonding assembly comprises a corrugated roller and further comprises a pressure belt, a fixed roller, a tensioning roller and a deviation rectifying roller, and the fixed roller, the tensioning roller and the deviation rectifying roller are distributed in a triangular mode. The pressure belt is wound outside the fixed roller, the tensioning roller and the deviation rectifying roller in a closed loop mode, the corrugated roller is located outside the closed loop defined by the pressure belt and abuts against the portion, between the fixed roller and the tensioning roller, of the pressure belt from outside to inside, and a bonding pressure face is formed between the corrugated roller and the pressure belt; the tensioning roller is used for adjusting the tensioning ...

METHOD FOR DETERMINING HIDDEN TERMINAL IN FULL-DUPLEX COMMUNICATIONS, CORRESPONDING APPARATUS AND SYSTEM

The present invention provides a method for determining a hidden terminal in full-duplex communications. The method comprises: after an access point (AP) receives data of a first terminal device (UE), if the first UE does not have a corresponding hidden terminal or has no data to be sent to the hidden terminals of the first UE, sending a specific signal to another UE; and after the AP receives feedback information of another UE, updating a correspondence of hidden terminals currently corresponding to the first UE according to the feedback information. By means of the solution, a hidden terminal can be effectively determined in full-duplex communications, and an asymmetrical transmission link in full-duplex communications can be established by using the hidden terminal without increasing network overheads.

STEERING ENGINE BASED ON NFC TECHNOLOGY AND IMPLEMENTATION METHOD THEREFOR

Disclosed are a steering engine based on (near field communication) NFC technology and an implementation method therefor. The implementation method comprises: connecting a steering engine control module in the steering engine with an NFC control chip in an NFC module, so as to perform communication between the steering engine and the NFC module; and connecting the NFC control chip with an NFC antenna in the NFC module, so as to perform, via the NFC antenna, communication between the NFC module and an NFC control program in an NFC mobile phone, and adjusting parameters or a program of the steering engine. In embodiments of the present invention, the parameters of any one steering engine in a system can be adjusted very conveniently, and the program of the steering engine can also be modified and adjusted, thereby simplifying the adjusting process of the steering engine. In addition, due to the support of the NFC technology, when the parameters of the steering engine are modified, the system ...

USES OF CYP4V2 AND RDCVF IN PREPARATION OF DRUGS

Uses of CYP4V2 and RdCVF in preparation of drugs. The drugs are used for treating, relieving and/or preventing diseases or symptoms associated with atrophy of retinal pigment epithelium (RPE). A separated nucleic acid molecule, comprising a polynucleotide encoding CYP4V2 and a polynucleotide encoding RdCVF. An amino acid sequence encoded by the separated nucleic acid molecule, a vector comprising the separated nucleic acid molecule, cells comprising the nucleic acid or the vector, and uses thereof in preparation of drugs for treating, relieving and/or preventing the diseases or symptoms associated with the atrophy of the RPE.

Polarization controller, polarization control system and angle adjusting method of polarization output light

The invention provides a polarization controller, a polarization control system and an angle adjusting method of polarization output light. The polarization controller comprises a polarizer, a magneto-optical medium, a polarization analyzer and an electro-magnetic device, the center of the polarizer, the center of the magneto-optical medium and the center of the polarization analyzer are located on the same horizontal line, the polarizer and the polarization analyzer are located on the two sides of the magneto-optical medium respectively, and the polarization analyzer is provided with different polarization angles prepared based on a preset range; and the electro-magnetic device is used for generating magnetic fields with different magnetic induction intensities, so that the input light input into the polarizer is output at different polarization angles. According to the invention, output of linearly polarized light at a specific angle at a specific current intensity can be realized, so ...

Aluminum plate adapter capable of realizing up-and-down and left-and-right position adjustment

The aluminum plate adapter comprises an adjusting corner connector, a connecting corner connector, a connecting support, an aluminum alloy hoop seat and a fixing corner connector, and is characterized in that the adjusting corner connector is installed on the side edge of the connecting corner connector, a first vertical strip-shaped hole is formed in the connecting corner connector, the adjusting corner connector is movably connected with the connecting corner connector, and a second strip-shaped hole is formed in the connecting support. The connecting corner brace is installed at the upper end of the connecting support through the fixing corner brace, the inner side of the connecting support is movably connected with the aluminum alloy hoop base, and a second vertical strip-shaped hole is formed in the vertical section of the connecting support. By means of the position-adjusted aluminum plate adapter, the technical problems of staggered joints and unevenness in the prior art are solved ...

Synthesis method of trans-4-(trans-4 '-alkylcyclohexyl) cyclohexyl ethylene liquid crystal monomer

The invention discloses a synthesis method of trans-4-(trans-4 '-alkyl cyclohexyl) cyclohexyl ethylene liquid crystal monomers, which comprises the following steps: by taking trans-4-alkyl dicyclohexyl ethyl ketone as a raw material, carrying out bromination and reduction to obtain alpha-brominated alcohol, and then removing hypohalous acid under the action of zinc powder to obtain a target product, thereby obtaining the trans-4-(trans-4'-alkyl cyclohexyl) cyclohexyl ethylene liquid crystal monomers. The method has the characteristics of few route steps, mild reaction conditions, low cost, high product quality and easiness in industrial production, and avoids the problems existing in the traditional preparation method for alkene by wittig reaction with low atom utilization rate.

Improved photovoltaic decomposition algorithm based on capacity estimation

The invention discloses an improved photovoltaic decomposition algorithm based on capacity estimation. The improved photovoltaic decomposition algorithm comprises the following steps: generating a candidate capacity sequence; obtaining a capacity curve based on the candidate capacity sequence; carrying out capacity estimation based on the capacity curve; constructing a probability density function; generating a typical sample; performing maximum likelihood estimation to obtain an initial result of photovoltaic decomposition; obtaining a confidence coefficient; and correcting the preliminary result by using a confidence coefficient to obtain a final photovoltaic decomposition result. According to the invention, the original result is corrected based on the capacity estimation result, and the robustness of the original photovoltaic decomposition algorithm is enhanced. The method has high capacity estimation accuracy, keeps good adaptability under the condition of containing a small number ...

Pure PEDOT: PSS hydrogel rapidly induced by surfactant and preparation method thereof

The invention provides a pure PEDOT: PSS hydrogel rapidly induced by a surfactant and a preparation method thereof, a PEDOT: PSS aqueous solution containing a hydrophobic core of PEDOT and a hydrophilic outer micelle shell of PSS is used as a matrix, the matrix is fully stirred and uniformly mixed through a cationic surfactant, the mixture is poured in a mold or a substrate after being uniformly mixed, annealing recrystallization is performed after drying, and the pure PEDOT: PSS hydrogel rapidly induced by the surfactant is obtained. In the annealing process, mechanical constraint in the plane direction is formed by utilizing the adhesion between the precursor solution and a mold or a substrate, an annealed xerogel film is obtained, then the xerogel film is expanded again to form hydrogel, and the pure PEDOT: PSS hydrogel is obtained by completely removing the cationic active agent residue; the hydrogel has high conductivity, high stretchability and low Young modulus, and has excellent ...

Jaw pulls into skull operation baffle down

... 本实用新型公开了种下颌骨牵引成骨手术导板,包括：牙支持部、连接部和固定部，所述连接部的端与所述牙支持部连接，所述连接部的另端与所述固定部连接；所述牙支持部上设置有与下颌前牙牙列相匹配的槽体；所述固定部上设置有用于血液渗出的引流槽，所述引流槽位于所述固定部的中间位置，所述固定部的两端均设置有多个固定孔。本实用新型的种下颌骨牵引成骨手术导板,基于牙齿就位，术中定位准确，截骨范围和截骨位置不易漂移,且设置有引流槽，具有渗血功能。 ...

Aluminum-based composite material, preparation method and application thereof and electric power connection fitting

The invention provides an aluminum-based composite material, a preparation method and application of the aluminum-based composite material and an electric power connection fitting, and the preparation method of the aluminum-based composite material comprises the following steps that silicon carbide and aluminum powder are mixed, and an Al-SiC composite material block is prepared; melting an aluminum ingot, a magnesium ingot, an Al-Cu intermediate alloy and an Al-Zr intermediate alloy to prepare a first melt; the Al-SiC composite material block and the first melt are subjected to melting treatment, and a second melt is prepared; carrying out refining treatment on the second melt; and the refined second melt is subjected to casting forming treatment, and the aluminum-based composite material is prepared. The silicon carbide particles are evenly distributed in the aluminum alloy matrix or evenly distributed in the aluminum alloy matrix and on the surface of the aluminum alloy matrix, meanwhile ...

Method for preparing antioxidant polypeptide through microbial fermentation of grass carp protein

The invention discloses a method for preparing antioxidant polypeptide by microbial fermentation of grass carp protein, which comprises the following steps: adding water into grass carp meat paste, adjusting the pH value to 7.2-7.6, and pasteurizing; inoculating serratia marcescens, and carrying out shake culture at the temperature of 30 DEG C and the speed of 100 to 150 r/min for 26 to 30 hours; performing heat preservation in a water bath at 63-65 DEG C for 20-30min for sterilization and enzyme deactivation, performing centrifugation, and collecting supernate; filtering the supernate through an ultrafiltration membrane, and collecting filtrate to obtain polypeptide liquid; and carrying out vacuum concentration, and freeze-drying a concentrated solution to obtain the antioxidant polypeptide. The serratia marcescens is used as a fermentation strain, the grass carp protein is used as a raw material to prepare the antioxidant polypeptide, and the antioxidant polypeptide has high antioxidant ...

Operation data processing method for motor train unit component maintenance

The invention relates to the technical field of data processing, in particular to an operation data processing method for motor train unit component maintenance, which comprises the following steps: obtaining multi-dimensional operation data in different stages and the influence degree of noise according to speed data in the multi-dimensional operation data and the speed slope value difference between adjacent time points; obtaining a first difference degree according to the data points of the matching point pairs in the first type of components and the second type of components; obtaining time points with large differences according to the first difference degree; obtaining a plurality of superposition results according to the time points; obtaining an abnormal degree according to the DTW distance between the first component and the superposition result and the DTW distance between the first component and the second component; obtaining a real data trend according to the abnormal degree ...

Improved Mask-R-CNN pulmonary nodule auxiliary detection method fusing dual-path channel attention and cavity space attention

The invention relates to an improved Mask-R-CNN pulmonary nodule auxiliary detection method fusing dual-path channel attention and cavity space attention, and belongs to the field of image processing, and the method comprises the following steps: S1, data set preprocessing; s2, lung parenchyma segmentation; s3, constructing an improved candidate nodule detection and segmentation model; s4, the RPN is modified according to the pulmonary nodule characteristics; s5, improving a loss function for data imbalance; s6, constructing a three-dimensional ResNet false positive removal model, and performing false positive removal; and S7, training the improved pulmonary nodule detection model by using the selected data set, loading the optimal weight file after training into the model for feature extraction, generating a series of candidate regions, then marking candidate frames according to the position relationship between the candidate regions and the real frames of objects on the pictures, and ...

Overhead guard for forklift

The overhead guard comprises two supporting frame bodies arranged left and right, a plurality of connecting frame bodies are arranged between the two supporting frame bodies, observation gaps are formed between the adjacent connecting frame bodies, grooves are formed in the two sides of each connecting frame body, shielding pieces are arranged corresponding to the grooves, one sides of the shielding pieces are rotationally arranged in the grooves, and the other sides of the shielding pieces are rotationally arranged in the grooves. A driving assembly is arranged on the connecting frame body and used for driving the sides, away from the grooves, of the shielding pieces to swing in the direction of the observation gap, and after swinging of the shielding pieces is completed, the sides, close to each other, of the two shielding pieces are connected with each other and seal the observation gap. The shielding pieces are arranged on the two sides of the connecting frame body, interference of ...

Multi-sensor fusion service robot collaborative mapping method and system

The invention discloses a multi-sensor fusion service robot collaborative mapping method and system, the system comprises a ground service robot and a server, the service robot comprises a depth vision camera, an inertial measurement unit (IMU), a microcomputer (NUC) and a communication module, and front-end processing is carried out; comprising the steps that a depth vision camera obtains image data, an IMU obtains instantaneous speed information and submits the image data and the instantaneous speed information to an NUC, feature extraction and key frame extraction are carried out on the image data, and pre-integration is carried out on the IMU data; and sending the preprocessed data to a background server. The rear-end server collaborative mapping method comprises the steps that a service robot starts from the same place and shoots an Apriltag; obtaining a conversion matrix between the service robots; constructing a cost function, and performing back-end optimization on the data sent ...

CONVEYING MECHANISM AND METHOD FOR BEVERAGE DISPENSER, AND BEVERAGE DISPENSER

Disclosed are a conveying mechanism and method for a beverage dispenser, and a beverage dispenser, which can be used to convey beverage cans of different specifications, and enlarge the range of application of the beverage dispenser. The conveying mechanism of the beverage dispenser comprises a storage shelf (1) provided with a discharge port (101), and a first storage area (1021) and a second storage area (1022), which are in parallel, being formed on the bottom face of the storage shelf (1); and further comprises a first stopping block (2), a second stopping block (3) and an asynchronous drive assembly (4), and when the first stopping block (2) or the second stopping block (3) is located at a raised position, a beverage can in the corresponding storage area can be stopped from rolling towards the discharge port (101), the asynchronous drive assembly (4) can drive the first stopping block (2) to rotate between a raised position and a lowered position, and the asynchronous drive assembly ...

ELECTRONIC WALLET-BASED PAYMENT METHOD AND SYSTEM

An electronic wallet-based payment method and system. An application program is installed on a mobile terminal. Said application program is provided with an electronic wallet and is associated with a bank card. Prior to use, the bank card is used to add money to the electronic wallet. During payment, the electronic wallet is used to make an offline payment. A sound wave, a radio frequency signal, or an optical signal is used as a signal carrier during the payment process. Compared to traditional card-swipe offline payments, the payment method offers advantages in terms of convenience, security, and cost control.

Collect structure that sets up of drawing label

... 本实用新型公开了一种珍藏画标签的设置结构，该设置结构包括标签芯片、与芯片连接的标签天线以及封装体，该封装体封装包裹住标签芯片与标签天线。本方案提供的电子标签整体尺寸小，且通过封装体封装形成一体，大大提高耐温性能，有效解决现有技术所存在的问题，可用于珍藏画限量版复制品的身份识别管理。 ...

Wind power operation safety detection method and system

The invention relates to a wind power operation safety detection method and system. The method comprises the steps that front image information of a person who applies for entering outside a tower drum is collected; determining a first feature region corresponding to the face according to a pre-trained first neural network model; performing image segmentation on the front image information according to the first feature region to form a face recognition image; performing face recognition on the face recognition image to obtain personnel identity information; personnel position information is obtained, a work ticket of the personnel is obtained from a two-ticket system according to the personnel identity information, and the work ticket at least comprises work execution position information; verifying whether the personnel position information is consistent with work execution position information or not; if yes, whether the person wears the safety equipment legally or not is detected, and ...

PUMP STRUCTURE OF PORTABLE ORAL IRRIGATOR AND PORTABLE ORAL IRRIGATOR COMPRISING SAME

A pump structure of a portable oral irrigator and a portable oral irrigator comprising same. The portable oral irrigator comprises: an oral irrigator main engine (5); the oral irrigator main engine (5) comprises a housing (512) and a pump assembly; the pump assembly is disposed within the housing (512) and is provided with a pump body (55), a driving motor (57), a water outlet nozzle (525) and a water inlet nozzle (514); a water outlet (51) provided corresponding to the water outlet nozzle (525), and a water inlet provided corresponding to the water inlet nozzle (514) are disposed on the housing (512); the driving motor (57) is vertically disposed; an output shaft of the driving motor (57) is drivingly connected to the pump body (55) by means of a spur gear (524) and a contrate gear (522); the contrate gear (522) is vertically and rotationally disposed within the housing (512); the pump body (55) comprises a pump cylinder (519), a piston rod (520) and a pumping piston head (527); the pump ...

PAYMENT METHOD AND PAYMENT SYSTEM

A payment method, comprising: a paying terminal sends to a receiving terminal identification information in the form of a transmission signal (302); the receiving terminal sends transaction information to a billing platform, said transaction information comprising said identification information (304); the billing platform acquires, on the basis of said identification information, payment account information of a first payment account used for making a payment, and sends a payment request to a settlement platform (306); and, in response to said payment request, the settlement platform makes the payment, said payment request comprising the payment account information of the first payment account (308).

5G mobile communication signal tester

... 本实用新型公开了5G移动通信信号测试器，主要涉及移动通信领域。包括基座、支撑管、圆形盘、信号检测收发模块、信号检测模块、接线圆盘、无线通信设备信号检测接口、电池、天线、无线通讯信号传感器；基座内有信号检测收发模块，基座上端连接支撑管；支撑管上端连接圆形盘，圆形盘连接接线圆盘，圆形盘内部安装有信号检测模块，信号检测模块上端连接无线通讯信号传感器，天线连接无线通讯信号传感器，无线通讯信号传感器通过导线连接信号检测收发模块，信号检测收发模块内有块电池，电池分别与无线通讯信号传感器和信号检测收发模块通过导线连接。本实用新型解决了中国专利文献CN 202127403 U具有线路繁琐不便于连接，不便于使用的问题。 ...

Edge grinding device for steel wooden door machining

The edge grinding device is characterized in that the left end of a cross beam mechanism is fixedly connected with a left edge grinding mechanism through a bolt, the right end of the cross beam mechanism is fixedly connected with a right edge grinding mechanism through a bolt, a left handle is welded to the side wall of a left rod body, a right handle is welded to the side wall of a right rod body, and a screw rod is screwed between the left rod body and the right rod body; an air cylinder assembly is connected between the upper edge grinding strip and the lower edge grinding strip. The air cylinder assembly is connected between the upper edge grinding strip and the lower edge grinding strip, the air cylinder can drive the T-shaped sliding rail of the upper edge grinding strip to slide so as to control the distance between the upper edge grinding strip and the lower edge grinding strip, and the adaptability of the edge grinding device is improved. The inner wall of the vertical edging strip ...

Nitrogen-doped porous graphene as well as preparation method and application thereof

The invention relates to the technical field of graphene, in particular to nitrogen-doped porous graphene as well as a preparation method and application thereof. The preparation method of the nitrogen-doped porous graphene comprises the following steps: providing amino-modified graphene oxide which is characterized in that an electrostatic adsorption effect is formed between amino and an oxygen-containing functional group on the surface of the graphene oxide, so that the amino is combined to the surface of the graphene oxide; dispersing the amino-modified graphene oxide in water to form a dispersion liquid, and regulating the solid content of the dispersion liquid to be 50 mg/mL-200 mg/mL to prepare thick slurry containing the amino-modified graphene oxide; and carrying out microwave irradiation on the thick slurry in a protective gas atmosphere to prepare the nitrogen-doped porous graphene. The preparation method is simple, convenient and suitable for industrial production, nitrogen doping ...

Weak and small target detection method combining structure tensor of image and self-attention mechanism

The invention relates to the field of object tracking and the like, and discloses a weak and small target detection method combining a structure tensor of an image and a self-attention mechanism, which comprises the following steps of: establishing a background suppression function model based on a structure tensor characteristic for suppressing a strong edge contour of the image; and establishing a new background suppression mathematical model based on a self-attention mechanism to realize further constraint of the background and obtain a final detection result. According to the background suppression function model based on the structure tensor characteristics, the background suppression can be realized according to the information characteristics of the characteristic values under different backgrounds, and compared with an existing background suppression function, the suppression effect of a strong edge contour can be better matched. In addition, the algorithm provided by the invention ...

Film-soil separation type plough layer residual film recycling machine

The invention discloses a film-soil separation type plough layer residual film recycling machine which comprises a traction rack, a break shovel used for loosening soil of cultivated land is arranged at the front end of the traction rack, a soil crushing mechanism is arranged at the position, behind the break shovel, of the traction rack, and a roller is arranged at the position, behind the soil crushing mechanism, of the traction rack. A plurality of rake teeth for grabbing residual films are arranged on the roller, and a film removing mechanism for removing the residual films on the rake teeth on the roller is further arranged on the traction rack; the traction rack is provided with a soil cleaning mechanism for cleaning broken soil on the residual film; in the process that the harrow teeth grab residual films and crushed soil, the crushed soil directly falls down from gaps among the harrow teeth, so that the amount of the crushed soil entering the machine body is effectively reduced, ...

FILM REMOVING PROCESSING METHOD AND EQUIPMENT

Provided in embodiments of the present disclosure are a film removal processing method and equipment. The film removal processing equipment comprises: an optical component and a processor, wherein the optical component comprises: a laser generator configured to generate a laser beam; a first scanning galvanometer configured to reflect the laser beam; and a second scanning galvanometer configured to reflect the laser beam reflected by the first scanning galvanometer. The processor is configured to control the laser generator to generate a laser beam, and to control the first scanning galvanometer and the second scanning galvanometer to deflect to perform a film removal process on a target object.

OPTICAL MODULE

An optical module: a first lens assembly (400) and a circuit board (300) form a first accommodating cavity; the first accommodating cavity is provided in succession from bottom to top with a light-emitting chip array (310) and a first collimating lens array (320), and the surface of the first lens assembly (400) is provided with a first reflective surface (411) and a second converging reflective surface (412); a third reflective surface (413) is provided on the inner upper wall of the first accommodating cavity; the third reflective surface (413) is a coating layer, and is arranged in parallel with the first reflective surface (411); and the coating layer comprises a plurality of filtering film layers distributed in parallel. The first reflective surface (411) and the third reflective surface (413) provided by the first lens assembly (400) complete the combining of multiple beams of signal light of different wavelengths, thereby improving the coupling accuracy when coupling multiple channels ...

Platinum-loaded nitrogen-doped graphene as well as preparation method and application thereof

The invention relates to the technical field of graphene, in particular to platinum-loaded nitrogen-doped graphene as well as a preparation method and application thereof. The preparation method of the platinum-loaded nitrogen-doped graphene comprises the following steps: mixing graphene oxide, platinum salt and a solvent to form a mixed solution, and then carrying out hydrothermal reaction to prepare graphene oxide-platinum salt composite powder; mixing the graphene oxide-platinum salt composite powder with an amino compound, and carrying out ball milling to prepare amino-modified graphene oxide-platinum salt composite powder; and carrying out microwave irradiation on the amino-modified graphene oxide-platinum salt composite powder to prepare the platinum-loaded nitrogen-doped graphene. The preparation process is simple, and the prepared platinum-loaded nitrogen-doped graphene has good oxygen reduction catalytic activity.

Three-dimensional convolutional neural network CT image pulmonary nodule detection method and system based on multilayer channel perception

The invention relates to a three-dimensional convolutional neural network CT image pulmonary nodule detection method and system based on multilayer channel perception, and belongs to the field of computer vision, and the method comprises the steps: converting CT image data from a DICOM format or an MHD format into a binary file special for the method; mapping the HU value of the CT image to be between 0 and 255, and coding by adopting the multi-layer channel sensing residual module and the pooling layer; decoding is carried out by adopting the multi-layer channel sensing residual module and a deconvolution layer; carrying out information fusion with an encoder; the candidate nodule generation module and the false positive filtering module are adopted to carry out extraction operation and filtering operation on nodule position information and classification information; wherein the multi-layer channel sensing module is used for extracting a weight matrix from a feature map, so that the network ...

Quantitative design method for multi-cluster fracturing non-uniform perforation of horizontal well

The invention discloses a quantitative design method for multi-cluster fracturing non-uniform perforation of a horizontal well, and belongs to the technical field of oil-gas field development, and the quantitative design method for the multi-cluster fracturing non-uniform perforation of the horizontal well comprises the following steps: obtaining well bore parameters of a fractured well, fracturing well completion information, reservoir geological parameters and fracturing construction parameters; according to the fractured well shaft parameters, the fractured well completion information, the reservoir geological parameters and the fractured construction parameters, determining the magnitude of stress interference between fractures near all fractures, and forming a dimensionless parameter lambda according to the magnitude of stress interference between fractures near all fractures; under the condition that section internal stress heterogeneity is not considered, a first perforation parameter ...

FLEXIBLE DISPLAY PANEL, ENCAPSULATION METHOD THEREFOR, AND DISPLAY DEVICE

A flexible display panel, an encapsulation method therefor, and a display device. The flexible display panel comprises: a flexible substrate (6); a display device (7) located on the flexible substrate (6); and an encapsulation layer covering the display device (7), and comprising inorganic thin films (1, 5) and an organic thin film (3) alternately stacked, wherein two protrusion structures (2, 2', 4, 4') engaged with each other are provided between at least two adjacent ones of the thin films of the encapsulation layer.

DATA TRANSMISSION METHOD AND DEVICE IN WIRELESS NETWORK

The present application relates to the technical field of wireless communications, and provides a data transmission method and device in a wireless network. The method comprises: when RTS sent by a first node is received and it is determined that RA carried in the RTS sent by the first node is inconsistent with its own address, and there is a data frame to be sent to a second node, sending the RTS to the second node and receiving CTS sent by the second node. The first node is to send a data frame by means of rateless coding, and the data frame sent by means of rateless coding is allowed to be interfered with by a control frame. Therefore, when there is a data frame to be sent to the second node, the RTS may be sent to the second node, and the CTS sent by the second node is received under interference of the data frame sent by the first node. Thus, the present application resolves the problem of being unable to complete an RTS-CTS handshake process with other nodes and perform data transmission ...

USE OF EPHA8 GENE IN PREPARING ANTI-BREAST CANCER DRUG AND DIAGNOSTIC KIT THEREOF

Disclosed is the use of the EphA8 gene in preparing an anti-breast cancer drug and a diagnostic kit thereof. The drug is designed by using the EphA8 gene as a target.

ENCODING AND DECODING METHOD, MOBILE TERMINAL, AND SYSTEM FOR ENHANCING SPEED OF VISIBLE OPTICAL SIGNAL TRANSMISSION

Disclosed are an encoding and decoding method for enhancing the speed of visible optical signal transmission, and a mobile terminal, a receiving end, and a system using the method. The encoding method comprises: encoding by the mobile terminal: symbols in a data string is read, and whenever a symbol is read, the electrical level jumps, symbols of different digits being encoded into electrical level signals having different electrical level durations; optical signal modulation and transmission: the encoded data is used to modulate an optical source, and the data is transmitted in the form of visible light. During decoding, the receiving end uses configured determination durations, and compares the durations of all read high and low electrical levels with the determination durations, thereby enabling signal decoding.

AUTOMATIC BEVERAGE VENDING MACHINE

An automatic beverage vending machine, comprising product storage shelves (1), a base (2), and a product dropping chute (3). The product storage shelves (1) comprise product dispensing outlets (11). A product outlet (21) is provided on the base (2). The product storage shelves (1) are used for holding beverage cans. The beverage cans are allowed to enter the product drop chute (3) via the product dispensing outlets (11) and to enter the base (2) via the product drop chute (3) to be delivered to the product outlet (21). The beverage vending machine also comprises a first stopper (4) and a second stopper (5) arranged respectively at either side of the product outlet (21). The first stopper (4) is arranged below the product drop chute. The first stopper (4) is capable of guiding a beverage can dropping from the product drop chute (3) to roll towards the second stopper (5). The second stopper (5) is capable of guiding the beverage can to roll towards the product outlet. The automatic beverage ...

METHOD FOR DETERMINING COMPOSITION OF COARSE-GRAIN, HIGH-MODULUS ASPHALT CONCRETE WITH INTERLOCKING STRUCTURE

A method for determining the composition of a coarse-grain, high-modulus asphalt concrete having an interlocking structure comprises: selecting an AH-30# low-grade hard asphalt having a penetration grade of 30 or lower as a cementing material; selecting coarse aggregate having a nominal greatest particle diameter no less than 26.5mm; designing a gradation curve using gap-graded coarse material; using a design method based on an asphalt mixture of maximum compactness to determine the optimal tar/gravel proportions. The asphalt concrete formed by the present method has a compact, interlocking structure with improved high-temperature stability and mechanical properties, thus enhancing roadway performance.

Programmable unsteady flow vortex ring generation device

The invention belongs to the technical field of fluid mechanics experiments, and relates to a programmable unsteady flow vortex ring generating device which comprises a water tank, a vortex ring generating device and a coloring agent filling device, and is characterized in that an imaging background plate and a measuring scale are arranged in the water tank; the nozzle device is arranged at the side end of the middle of the water tank, the end face of the nozzle device is perpendicular to the imaging background plate and the measuring scale, and the vortex ring generating device is composed of a piston cylinder, the nozzle device, a multi-axis programmable controller, a servo motor propelling device, a servo motor controller and a 24V direct-current power source. The coloring agent filling device is composed of a coloring agent pushing and filling controller and a micro electric pump; the programmable unsteady flow vortex ring generation device can generate stable vortex rings through programming ...

TEST SYSTEM AND METHOD FOR INTEGRATED MONITORING SYSTEM

A closed-loop test system and method for an integrated monitoring system intelligent alarm application. The system comprises an upper computer and a lower computer; the upper computer and the lower computer perform file download and command interaction operations by means of an internal protocol; the upper computer comprises a visual signal configuration module, a scheduling protocol analysis and simulation module, and an evaluation module; the lower computer comprises a IEDs server simulation module.

METHOD FOR PREPARING ABIRATERONE ACETATE

Disclosed is a method for preparing abiraterone acetate. The steps are as follows: dehydroepiandrosterone acetate and trifluoromethanesulphonic anhydride undergo a sulfonylation reaction under the catalysis of an organic base to obtain a compound as represented by formula II; the compound is reacted with a 3-pyridine organoboron compound or a 3-pyridine organosilicone compound under the catalysis of bis-triphenylphosphine palladium dichloride to obtain a crude abiraterone acetate product; the crude product is recrystallized in a protic or aprotic solvent to obtain an abiraterone acetate crystal; and the crystal is further put into a solvent which easily dissolves the crystal and dissolved under heating, and the solution is dropwise added into a solvent which does not easily dissolve the crystal until a solid is precipitated under stirring, such that a micro powder abiraterone acetate is obtained; and the solvent which easily dissolves the crystal is a mixture of any two or more of acetone ...

Car electric system overhauls real standard platform

... 本实用新型涉及一种汽车电气系统检修实训台，包括实训台架（1），其特征在于：所述实训台架（1）上设置有多层安装框（2），安装框（2）上分别设置有实训板（3），所述实训板（3）为倾斜设置，所述每块实训板（3）上分别设置实车元器件电路系统（4），所述实车元器件电路系统（4）分别由各种实车元器件与控制开关、保险、继电器、组合开关等插接器端子连接，并接通电源，本实用新型实训台能够真实反应汽车电气系统元器件、电路控制原理，便于学习掌握汽车电气系统电路分析和检修思路，培养学生电路分析的逻辑思维能力, 结构简单，操作方便。 ...

Grouting method for mining overlying strata separation of long-wall working face under goaf

The invention relates to an overlying strata separation grouting method for mining a long-wall working face under a goaf, aiming at the condition that an upper coal layer is mined by adopting a full caving method and a lower coal layer is mined in a subsidence control manner by adopting an overlying strata separation grouting technology. A method for determining the grouting layer position is given by combining the development height of the water flowing fractured zone, and the method is divided into five situations; according to the situation that only main key layers c and e are not broken, the separation layer grouting technology combining crack blocking drill holes and separation layer grouting drill holes is provided, the crack blocking drill holes are located on the two sides of the inclination direction and used for blocking peripheral longitudinal large cracks, the grouting drill holes are located in the middle of the inclination direction, and the grouting concentration is improved ...

Evaluation method for judging whether power grid electric energy in certain area is low-carbon electricity or not

The invention belongs to the field of low-carbon electricity evaluation, and relates to a method for judging whether the on-grid electric energy of a power grid in a certain area is low-carbon electricity or not, which comprises the following steps of: detecting the relation between the real-time generating capacity and carbon emission of a generating side in the area, the electric quantity of external input electricity and a corresponding electricity carbon emission factor; and determining a dynamic electricity carbon emission factor of the electric energy of the power grid in the region, and comparing the dynamic electricity carbon emission factor with an average electricity carbon emission factor to determine whether the electric energy of the power grid in the region reaches a low-carbon electricity standard or not. According to the method, whether the power utilization side uses the low-carbon power or not is judged by using the dynamic power carbon emission factor, users in the region ...

5G mobile communication power consumption cable frame variable angle mounting structure

... 本实用新型公开了5G移动通信用电缆架变角度安装结构，主要涉及移动通信领域。包括上挡环、螺帽、转盘、轴杆、分隔片、下挡环、平面涡卷弹簧、支撑架；轴杆的上下端分别与上挡环和下挡环的中心孔形成转动式配合，在下挡环的下部设置个支撑架；上挡环和下挡环中心孔中分别安装有平面涡卷弹簧，平面涡卷弹簧内端连接轴杆，平面涡卷弹簧外端连接上挡环和下挡环的孔壁上；在上挡环和下挡环之间安装有两个转盘，在两个转盘之间安装有两个分隔片，在轴杆的内孔中设置有两个挡块，挡块和弹簧设置在两个分隔片之间，两个挡块侧边穿过轴杆壁上的条形孔分别连接分隔片。解决了现有的电缆架不能改变角度，安装时需要移动电缆架，操作不方便等问题。 ...

Medicinal and edible product for improving mammary gland hyperplasia nodule disease and preparation method thereof

The invention discloses a medicinal and edible product for improving mammary gland hyperplasia nodule disease and a preparation method thereof, and belongs to the technical field of traditional Chinese medicines. According to the medicinal and edible product for improving the mammary gland hyperplasia nodule disease, malt, orange peel, dandelion, poria cocos, fructus amomi, antler cap and endothelium corneum gigeriae galli are used as raw materials, all the raw material medicines are matched with one another and have a synergistic effect, the main effects of softening hardness to dissipate stagnation and activating blood circulation to dissipate blood stasis are achieved, and the auxiliary effects of activating blood circulation to stop pain and harmonizing spleen and invigorating stomach are achieved, so that the formula treats both symptoms and root causes, and has a good curative effect. The traditional Chinese medicine composition has the comprehensive effects of softening hardness ...

Self-supervised pre-training method based on diffusion model

The invention provides a self-supervised pre-training method based on a diffusion model, and the method comprises the following steps: 1, training a diffusion model on a pre-trained data set based on a noise prediction mode, and enabling the diffusion model to serve as a teacher network; 2, extracting feature maps of an up-sampling part in the U-Net network in the diffusion model trained in the step 1, and splicing the feature maps; step 3, aligning the feature map output by the student network with the feature map extracted in the step 2 so as to train the student network; and step 4, obtaining a global feature map of the image through the student network trained in the step 3. According to the method, explicit modeling is carried out on semantic relevance of different areas in the image, regularization constraint on global features of the image is added, and therefore the performance of a model obtained through pre-training of the method in downstream tasks such as image classification ...

Method for monitoring thickness of initial setting blank shell based on Fourier transform and decision tree algorithm

The invention belongs to the technical field of continuous casting, and provides a method for monitoring the thickness of an initial setting blank shell based on Fourier transform and a decision tree algorithm. The method aims at solving the problems that the thickness of an initial solidified blank shell near the meniscus of the continuous casting crystallizer is not uniform, casting blank surface defects are prone to being generated, and even steel breakout is caused. At present, a method for monitoring the thickness of an initial solidified shell is lacked. Temperature sensors are arranged at the positions, lower than the meniscus, of the crystallizer in the circumferential direction, and transient heat flow changes at different positions of the crystallizer in the circumferential direction are calculated after the temperature of a crystallizer copper plate is monitored at a certain frequency. Then, the heat flow difference value, the low-frequency heat flow fluctuation amplitude obtained ...

Plug valve pressure test device and pressure test method thereof

The invention discloses a plug valve pressure test device and a pressure test method thereof, belongs to the technical field of plug valve pressure test detection, and solves the problem of low detection efficiency caused by the fact that an existing plug valve pressure test device cannot perform plug valve detection in batches. The device comprises a device body, the device body comprises a mounting seat, the mounting seat is provided with a plurality of pressure test stations used for testing the pressure endurance capability of a male plug valve and a female plug valve in pairs, and each pressure test station is communicated with a water pressure equipment system used for rapid and stable pressure boosting. The number of the pressure test stations arranged in pairs is even, the pressure test stations correspond to the male plug valves and the female plug valves in pairs one by one, the detection efficiency is improved, and two cavities in the male plug valves and the female plug valves ...

5G mobile communication turning position device

... 本实用新型公开了5G移动通信转动定位装置，主要涉及移动通信领域。包括主板、音视频编码单元、GPS模块、中央处理器、嵌入槽、5G移动通信网络模块、接线插槽；在主板上安装有中央处理器，以及分别和中央处理器连接的音视频编码单元、GPS模块、5G移动通信网络模块；在主板上还设置有两个嵌入槽,嵌入槽侧面有接线插槽，接线插槽通过线路连接中央处理器；在嵌入槽中分别嵌入有5G移动通信网络模块，5G移动通信网络模块的接线端连接接线插槽。所述接线插槽是贯通到主板上表面的槽形结构。本实用新型解决了现有的移动通信转动定位装置，不方便根据需要对移动通信网络模块进行升级等问题。 ...

Magnesium alloy material, preparation method and application thereof and magnesium alloy product

The invention relates to a magnesium alloy material, a preparation method and application of the magnesium alloy material and a magnesium alloy product, and the preparation method of the magnesium alloy material comprises the following steps that raw materials are provided according to the components of the magnesium alloy material, and the magnesium alloy material comprises, by mass, 4%-8% of Gd, 0.05%-0.2% of Ni, 0.1%-0.5% of Zr and 91.3%-95.85% of Mg; mixing and smelting the raw materials to obtain a melt; casting the melt to obtain a magnesium alloy cast ingot; the magnesium alloy cast ingot is sequentially subjected to hot extrusion and annealing treatment, and the magnesium alloy material is obtained; the temperature of the annealing treatment is 350-400 DEG C, and the time is 1-2 hours. According to the preparation method of the magnesium alloy material, on the basis that the tensile strength and the yield strength of the magnesium alloy material are guaranteed, the percentage elongation ...

Finished product loading system for flourmill and working method of finished product loading system

The invention relates to the technical field of flour finished product loading systems, in particular to a finished product loading system for a flourmill and a working method thereof.The finished product loading system for the flourmill comprises a displacement mechanism and a lifting mechanism, the lifting mechanism is located above the displacement mechanism, and a turnover mechanism is installed on one side of the lifting mechanism; a conveying mechanism is installed on the side, away from the lifting mechanism, of the overturning mechanism. The flour loading system has the beneficial effects that the turnover connecting plate is driven by the side plate to turn over, so that the fixing frame is kept parallel to the ground, finished flour is lifted and is close to the cart, the conveying belt is driven to rotate, the finished flour is conveyed out of the loading system and then transferred into the cart, and the fixing frame and the anti-skid column are combined to move left and right ...

POWER DISTRIBUTION AREA SOURCE-LOAD COOPERATIVE ACCESS METHOD, TERMINAL, AND STORAGE MEDIUM

The present application relates to a power distribution area source-load cooperative access method, a terminal, and a storage medium. The method comprises: separately establishing a time sequence characteristic model of a distributed generator and a time sequence characteristic model of a load; obtaining a time sequence characteristic of a distributed generator accessing an area by using maximum likelihood estimation and obtaining a time sequence characteristic of a user accessing the area by using a classification regression tree; and inputting the time sequence characteristics of the distributed generator and the user accessing the area into a combined optimization module, and determining a source-load access feeder line by means of optimization.

Shaping of titanium alloy chin cuts bone conduction board

... 本实用新型公开了种钛合金颏成型截骨导板,包括：截骨导板本体，所述截骨导板本体的内侧形成与颏部骨表面紧密贴合的弧形面；在所述截骨导板本体的两端均开有可容纳电锯片的截骨槽，所述截骨槽与截骨线位置、截骨量吻合致；在所述截骨导板本体的两端还均设置有三个固定孔，三个所述固定孔成三角形的分布方式设置。本实用新型的种钛合金颏成型截骨导板，可避免术中颏部骨就位不精确的问题，同时不再需要对成品钛接骨板进行弯制，且设置的截骨槽可引导锯片截骨的角度，从而使手术更加精确，能够指导颏部骨截骨手术。 ...

Graphene/nano-copper composite antibacterial agent, antibacterial polycarbonate and preparation method of antibacterial polycarbonate

The invention relates to a graphene/nano copper oxide composite antibacterial agent, antibacterial polycarbonate and a preparation method thereof, and the preparation method comprises the following steps: mixing graphene oxide, basic cupric carbonate, copper citrate, urea, ammonia water and a solvent to obtain a mixed solution; the mixed solution is subjected to two hydrothermal reactions, the temperature of the first hydrothermal reaction is 130-150 DEG C, the time is 2-4 h, the temperature of the second hydrothermal reaction is 210-230 DEG C, and the time is 5-7 h. According to the graphene/nano copper oxide composite antibacterial agent obtained by the preparation method of the graphene/nano copper oxide composite antibacterial agent provided by the invention, graphene and nano copper oxide are combined very firmly and are not easy to fall off, an agglomeration phenomenon is not easy to occur when the graphene/nano copper oxide composite antibacterial agent is added into a matrix, and ...

Composite insulating layer structure, preparation method thereof, thin film sensor and application of thin film sensor

The invention relates to the technical field of thin film sensors, in particular to a composite insulating layer structure, a preparation method thereof, a thin film sensor and application of the thin film sensor. The method is used for solving the problem that air holes and cracks are easily generated in an insulating layer film in the prior art, so that subsequent conductive sensitive pattern layer preparation is not facilitated. The composite insulating layer structure comprises a substrate layer and an insulating layer which are laminated, and a buffer layer arranged between the substrate layer and the insulating layer, wherein the buffer layer is formed by splicing a plurality of splicing blocks; in the multiple splicing blocks, the thermal expansion coefficients of every two adjacent splicing blocks are different, and each splicing block is made of one or more of titanium nitride, silicon nitride, aluminum oxide, silicon oxide, YSZ, titanium, nickel and chromium.

THICKENED OIL ACTIVATING AGENT AND PREPARATION METHOD AND USE THEREOF

Disclosed are a thickened oil activating agent and a preparation method and the use thereof. The thickened oil activating agent is a polymer as shown in a structural formula such as formula (I), where x, y, z, m and n are respectively mass fractions of corresponding chain segments in the polymer, m is 0.75 to 0.85, y is 0.20 to 0.24, and x, z and n are all 0.001 to 0.01; and p is a natural number between 2 to 9. The activating polymer provided in the present invention has the effects of increasing aqueous phase viscosity and reducing the crude oil viscosity at the same time, and can be used as both a flooding agent and a viscosity reducer, thus achieving the aim of one substance acting as two agents. The activating polymer can increase the aqueous phase viscosity, has the function of displacement, can emulsify and disperse the crude oil, and increases the flowability of the mixed phase. Moreover, the dispersed crude oil continues to react with non-contacted crude oil. At the same time, ...

Steering control method of heavy-duty vehicle capable of being dragged

The invention discloses a steering control method for a trailer heavy-duty vehicle. The steering control method comprises the steps that a control instruction of a user is received to determine a current steering mode; the initial steering angle information of the corresponding position is collected through an angle sensor installed on each wheel set; generating an operation instruction according to the target sensing information, the current vehicle speed and all the initial steering angle information; the main controller decomposes the operation instruction into sub-commands which can be executed by all components in the steering system; each component in the steering system is responsive to its corresponding sub-command to enable the trayable heavy duty vehicle to travel in accordance with the current steering mode. Each axis steering mechanism of the wheel set is provided with an angle sensor, the angle sensors can sense the steering angle of each axis and upload angle signals to the ...

METHOD AND MODULE IN OPERATING SYSTEM FOR CONTROLLING HARDWARE DEVICE

A method and module in an operating system for controlling a hardware device. State data used for controlling an action of a hardware device is acquired then issued to and stored at a cache unit. A hardware device driver is called, the state data in the cache unit is read by the hardware device driver, and a state of the action of the hardware device is controlled on the basis of the state data. Calling of the hardware device driver comprises: an existing hardware device driver is called to control the action of the hardware device, or, a link library load instruction is acquired to load a link library; an instruction used for controlling the action of the hardware device is acquired, a feature implementing function in the link library corresponding to the instruction is called; and, the called feature implementing function is executed to control the hardware device to execute a corresponding action. It is a direct control mode in which the hardware device driver controls the hardware device ...

CASTING MOLD BREAKOUT PREDICTION METHOD BASED ON FEATURE VECTORS AND HIERARCHICAL CLUSTERING

A casting mold breakout prediction method based on feature vectors and hierarchical clustering. According to the present prediction method, temperature feature vectors of sticking breakout, past data under normal working conditions, and online real-time measured data are extracted to establish a sample set of feature vectors; the sample set is normalized and subject to hierarchical clustering; and then, whether the feature vectors extracted online falls within the breakout cluster is checked and determined, so as to identify and predict casting mold breakout. The prediction method avoids the tedious debugging and modification of parameters such as an alarm threshold, overcomes the artificial dependence of previous breakout prediction methods, and has good robustness and migration. By means of temperature feature extraction, not only can the temperature mode of sticking breakout be accurately recognized, false alarms can be avoided and the number of false alarms can be significantly reduced ...

Bending device for fireproof window

The utility model discloses a bending device for a fireproof window, which comprises a supporting column, a working table plate is arranged above the supporting column, a material pressing box is arranged on the working table plate, a material pressing groove is formed below the material pressing box, and a material pressing device is arranged in the material pressing box. The material pressing device comprises a material pressing plate, a telescopic rod, an air cylinder groove, a material pressing air cylinder and a guide rod, the material pressing plate is fixed to the bottom end of the telescopic rod, the upper end of the telescopic rod is connected with the output end of the material pressing air cylinder, the material pressing air cylinder is installed in the air cylinder groove, and the air cylinder groove is formed in the upper end of the material pressing box. The bending device for the fireproof window has the advantages that material pressing stability is improved, slipping is ...

Catalytic layer and preparation method thereof, membrane electrode and fuel cell

The invention provides a catalyst layer and a preparation method thereof, a membrane electrode and a fuel cell, the preparation method comprises: preparing a first slurry, the first slurry comprising a graphene-based catalyst, the graphene-based catalyst comprising a graphene base material and a catalytic material loaded on the surface of the graphene base material; preparing second slurry, wherein the second slurry comprises a conductive material; the first slurry and the second slurry are alternately applied to the surface of the base material, a graphene layer and a conductive supporting layer are prepared respectively, and the graphene layer and the conductive supporting layer are alternately stacked to obtain the catalyst layer. The catalyst layer is prepared in an alternate coating mode, the conductive material is used as a supporting structure between the graphene layers, and the stacking problem between every two adjacent graphene layers is avoided.

Recommendation method, system and equipment for electric power retail electricity fee package, and storage medium

The invention relates to the field of package recommendation, and provides a power retail electricity fee package recommendation method, system and device and a storage medium. The method comprises the following steps: dividing users in a sample set into different user basic power consumption types according to power consumption attributes; according to the package selection, a user preference scoring matrix of the basic power consumption type of the user is constructed by taking the selection frequency of the power retail electricity fee package as a scoring basis; on the basis of the basic power utilization types of the users, secondary classification is carried out on the users according to the load data of the users, and user subdivision categories are established; the user preference scoring matrix is adjusted, the power retail electricity fee packages are sorted, and N high-score packages are selected; and determining the basic power consumption type of the user according to the power ...

Alpha-olefin base fluid and application thereof in drilling fluid

The invention relates to alpha-olefin base fluid and application thereof in drilling fluid. The alpha-olefin base fluid comprises linear alpha-olefin, a nonionic surfactant, mineral oil and liquid paraffin. The mass ratio of the linear alpha-olefin to the nonionic surfactant to the mineral oil to the liquid paraffin is (90-100): (4-5): (8-10): (1-2). The alpha-olefin base fluid can effectively avoid the adverse consequences of pump pressure rise, stratum fracture, borehole wall instability and the like caused by viscosity rise of drilling fluid due to too low temperature in the drilling process. Meanwhile, the alpha-olefin drilling fluid provided by the invention also comprises perlite with a specific expansion multiple, the perlite is used as a weighting substance of the alpha-olefin drilling fluid at low temperature, and the perlite is softened when the temperature rises, so that the drilling fluid can keep stable viscosity at high temperature, and the drilling fluid has good stability ...

Jaw cuts bone conduction board down

... 本实用新型公开了种下颌骨截骨导板,所述截骨导板包括：支持部、连接部和固定部，所述连接部的端与所述支持部连接，所述连接部的另端与所述固定部连接；所述支持部上设置有与下颌前牙牙列相匹配的槽体；所述固定部上设置有成U型状的截骨槽,所述截骨槽与截骨线位置、截骨量吻合致；所述固定部的两端还均设置有多个固定孔。本实用新型的种下颌骨截骨导板，术中定位准确，截骨范围和截骨位置不易漂移，且可引导锯片截骨的角度，从而使手术更加精确，能够指导复杂下颌骨手术。 ...

Pipeline joint loaded with graphene film as well as preparation method and application of pipeline joint

The invention relates to the technical field of pipeline connection, in particular to a pipeline connector loaded with a graphene film and a preparation method and application of the pipeline connector. The preparation method of the pipeline joint loaded with the graphene film comprises the following steps: preparing a graphene film-metal foil composite material by adopting a CVD (Chemical Vapor Deposition) method; and a graphene film transfer method is adopted, and the graphene film in the graphene film-metal foil composite material is transferred and attached to the surface of the metal pipeline connector. According to the preparation method, atomic-scale gaps appearing in the pipeline joint can be repaired, and the sealing performance of the pipeline joint is improved.

Weak and small target detection method based on neighborhood spatio-temporal information and multi-frame motion association

The invention relates to the field of computer image processing, in particular to a weak and small target detection method based on neighborhood spatio-temporal information and multi-frame motion association, which comprises the following steps of: constructing a multi-scale filtering template for effectively reserving a target signal and furthest reserving background information at the same time; constructing mean information of adjacent region blocks, and establishing gray and spatial position information of the image region blocks by using the mean information to obtain corresponding filter coefficients, so as to solve the problems that bilateral filtering cannot reflect the difference between a target and the adjacent region blocks and the neighborhood information is not fully utilized; multiplying the filtering template by a corresponding filtering coefficient to obtain a pixel value of background prediction; calculating the pixel value of the background prediction to obtain a final ...

METHOD AND SYSTEM FOR DRYING SOLAR CELL SLURRY

A method and system for drying a solar cell slurry. The method comprises the following steps: delivering a current cell sheet to a position below a laser; detecting position information of the cell sheet; and starting, according to the position information, the laser to emit a laser beam to dry the cell sheet.

Soybean peroxidase gene GmPOD for coding CDS region and application of soybean peroxidase gene GmPOD

The invention discloses a soybean peroxidase gene GmPOD for coding a CDS region and application of the soybean peroxidase gene GmPOD. The nucleotide sequence of the soybean peroxidase gene GmPOD is as shown in SEQ ID NO.1, and the amino acid sequence coded by the nucleotide sequence of the soybean peroxidase gene GmPOD for coding the CDS region is as shown in SEQ ID NO.2. Compared with the prior art, a CDS region sequence for coding the soybean peroxidase gene GmPOD is cloned from a soybean genome, and the soybean peroxidase gene GmPOD for coding the CDS region is transferred into a plant cell by utilizing a plant expression vector, so that an insect-resistant transgenic plant can be obtained; compared with no-load soybeans, the soybeans over-expressing the soybean peroxidase gene GmPOD of the coding CDS region have the advantages that the resistance to soybean cyst nematode is obviously enhanced, which indicates that the GmPOD gene plays an important role in improving the insect resistance ...

Insertion type cable penetrating ridge rod connecting joint and construction and design method thereof

The invention relates to the technical field of civil engineering, and particularly discloses an insertion type cable penetrating ridge rod connecting joint and a construction and design method thereof. The node comprises a cable penetrating ridge rod, a ridge rod node connecting piece and a pressure-bearing type high-strength bolt, and the cable penetrating ridge rod is connected to the outer side of a ridge rod connecting rod of the ridge rod node connecting piece in a sleeving mode and connected through the pressure-bearing type high-strength bolt; wherein the cable penetrating ridge rod comprises a seamless round steel pipe, a stay cable, a cable penetrating ridge rod outer sleeve and a stay cable fixer, the stay cable is arranged in the seamless round steel pipe, the seamless round steel pipe is inserted into a hole-free round steel pipe of the cable penetrating ridge rod outer sleeve, the two ends of the stay cable penetrate through a partition plate with a hole of the cable penetrating ...