DATA TRANSMISSION METHOD AND APPARATUS IN WIRELESS LOCAL AREA NETWORK

An HE-LTF transmission method, comprising: the total number N ...

METHOD FOR TRANSMITTING HE-LTF SEQUENCE AND APPARATUS

Embodiments of the present invention provide several Long Training Field (LTF) sequences conforming to 802.11ax in a wireless local area network.

DATA TRANSMISSION METHOD AND APPARATUS IN WIRELESS LOCAL AREA NETWORK

An HE-LTF transmission method is provided, including: determining, based on a total number N STS of space-time streams, a number N HELTF of OFDM symbols included in an HE-LTF field; determining a HE-LTF sequence in frequency domain according to a transmission bandwidth and a mode of the HE-LTF field, where the HE-LTF sequence in frequency domain includes but is not limited to a mode of the HE-LTF field sequence that is in a 1x mode and that is mentioned in implementations; and sending a time-domain signal according to the number N HELTF of OFDM symbols and the determined HE-LTF sequence in frequency domain. In the foregoing solution, a PAPR value is relatively low.

Detection device

The invention discloses a detection device which comprises a ray source and a detector, wherein the ray source is used for emitting rays, and the detector is a preset distance away from the ray source and used for receiving rays emitted by the ray source. The ray source and the detector can swing around a vertical axis at the same angular speed. The detection device is high in scanning speed and high in detection pass rate. A person stands still, so that an artifact caused by moving of the person is avoided, imaging quality is high, and the detection process is high in comfort.

DATA TRANSMISSION METHOD AND APPARATUS IN WIRELESS LOCAL AREA NETWORK

An HE-LTF transmission method, comprising: the total number N ...

Organic/inorganic composite two-dimensional catalyst with triphenylphosphine-ruthenium structure and preparation method of catalyst

The invention relates to an organic/inorganic composite two-dimensional catalyst with a triphenylphosphine-ruthenium structure and a preparation method of the catalyst. The preparation method comprises the following steps: carrying out an amidation reaction between a synthesized two-dimensional nanometer layered compound with amino phenyl in regular arrangement (namely a p-amino phenyl silicon oxide-sodium dodecyl sulfate two-dimensional nanometer layered compound) and acylchlorirated 4-diphenyl phosphino-benzoic acid, thereby obtaining a stable organic/inorganic two-dimensional nanometer layered compound with regular triphenylphosphine arrangement; carrying out a ligand exchange reaction between a 4-diphenyl phosphino benzamide phenyl silicon oxide layered compound and [(C6H5)3P]3RuCl2; and finally, obtaining the organic/inorganic composite two-dimensional catalyst with the triphenylphosphine-ruthenium structure. According to the catalyst disclosed by the invention, the arrangement mode ...

Hierarchical active vibration isolation assembly based on voice coil motor driving type periodic dot matrix distribution

The invention provides a hierarchical active vibration isolation assembly based on voice coil motor driving type periodic dot matrix distribution. The hierarchical active vibration isolation assembly comprises a bearing mechanism, an active control mechanism, a driving mechanism, a fixed damper and a movable damper, wherein the fixed damper and the movable damper are distributed in a dot matrix mode. The bearing mechanism comprises an upper end cover, a fixed damping limiting cover, a lower end cover and a base; the upper end cover, the fixed damping limiting cover, the lower end cover and the base are coaxially arranged; the active control mechanism comprises a control panel, a voice coil motor, a pressure sensor and a sensing circuit; the voice coil motor and the pressure sensor are connected with the control panel; the driving mechanism comprises a gear shaft, a first-stage driving plate and a second-stage driving plate; the gear shaft, the first-stage driving plate and the second-stage ...

SUPPORTED METAL OXIDE DOUBLE ACTIVE CENTER POLYETHYLENE CATALYST, PROCESS FOR PREPARING THE SAME AND USE THEREOF

The present invention relates to a supported hybrid vanadium-chromium-based catalyst, characterized in the catalyst is supported on a porous inorganic carrier and a V active site and a inorganic Cr active site are present on the porous inorganic carrier at the same time. The present invention further relates to a process for producing a supported hybrid vanadium-chromium-based catalyst. The invention also provides the preparation method of the catalyst, titanium or fluorine to compounds, vanadium salt and chromium salt according to the proportion, different methods of sequence and load on the inorganic carrier, after high temperature roasting, still can further add organic metal catalyst promoter prereduction activation treatment on it. The catalyst of the present invention can be used for producing ethylene homopolymers and ethylene/-olefin copolymers. The hybrid vanadium-chromium-based catalyst can have high activity and produce polyethylene polymers having the properties of broad molecular ...

SAMPLING DEVICE FOR ION MIGRATION SPECTROMETER AND METHOD FOR USING THE SAME, AND ION MIGRATION SPECTROMETER

A sample introducing device for an ion mobility spectrometer (IMS) comprises: an inner sleeve element, defining an inner cavity inside, which is connected to the inlet of the drift tube by an inner passage on one end and has an inner lid with an inner hole on the other end; and an outer sleeve element, which is an eccentric sleeve set coaxially with and rotatably relative to the inner sleeve element in order to form a sleeve cavity between the inner and outer sleeve element. One end of the outer sleeve element is provided with at least one through-hole which is selectively connected with the inner passage, and the other end is provided with an outer lid on which there are a first outer hole selectively connected with the inner hole, and a second outer hole selectively connected with the sleeve cavity. The outer lid is rotatable between a first and second position with respect to the inner lid, so as to selectively introduce the sample under test from the inner cavity or the sleeve cavity ...

Embedded pouring asphalt concrete

The invention relates to paving structures and materials for pavement engineering, in particular to embedded pouring asphalt concrete. The coarse aggregate dosage of the embedded pouring asphalt concrete is reduced by 10-30 percent than the coarse aggregate dosage in the mixing proportion design of ordinary pouring asphalt concrete, and the embedded pouring asphalt concrete is prepared through the following steps of: mixing the coarse aggregate, uniformly stirring at the temperature of 180-220 DEG C, spreading and leveling by using a spreading machine, then spreading a first layer of aggregate with the granularity of 10-15mm and the dosage accounting for 10-25 percent of the quality of the designed pouring asphalt concrete, then spreading a second layer of aggregate with the granularity of 5-10mm and the dosage accounting for 10-15 percent of the quality of the designed pouring asphalt concrete and rolling once through a combined wheel road roller of which bearing wheel walking railways ...

METHOD FOR TRANSMITTING HE-LTF SEQUENCE AND APPARATUS

MIDDLEWARE FILTER AGENT BETWEEN SERVER AND PDA

A content server provides content to a first network device during a data synchronization between the two devices. A middleware filter selectively filters content provided by the content server such that selected content is provided to the first network device. The middleware filter is included within a second network device coupled between the content server and the first network device. The second network device acts as a proxy for the first network device to receive the content provided by the content server. The content is provided from the content server according to a subscription service between the content server and the first network device. The first network device is preferably a personal digital assistant (PDA) and the second network device is preferably a personal computer. Alternatively, the content server is coupled to the first network device, without the second network device coupled in between. In the alternative case, the middleware filter is included within the content ...

SAMPLING DEVICE FOR ION MIGRATION SPECTROMETER AND METHOD FOR USING THE SAME, AND ION MIGRATION SPECTROMETER

A sampling device for an ion migration spectrometer (IMS) is disclosed, comprising: an inner sleeve part having an inner cavity defined inside thereof, the inner cavity being communicated with the inlet of the migration pipe at its one end via an inner layer passage and being provided at its other end with an inner end cap having an inner aperture; and an outer sleeve part, arranged to be an eccentric sleeve that is coaxial with the inner sleeve part and rotatable with respect to the inner sleeve part so as to form a sleeve cavity between the inner sleeve part and the outer sleeve part, the sleeve cavity being provided at its one end with at least one communication opening that is selectively communicated with the inner layer passage and being provided at its other end with an outer end cap having a first outer opening selectively communicated with the inner aperture and a second outer opening selectively communicated with the sleeve cavity thereon, wherein the outer end cap is configured ...

Multi -functional 3D prints double -end structure

The utility model discloses a multi -functional 3D prints double -end structure is used for realizing that same part 3D prints single, the double -colored printing function of in -process, also can realize the double that same part 3D printed simultaneously and print in step. This multi -functional 3D prints dual spray utility model characterized in that: print the coaster and pass through the removal of cogged drive belt (1) realization on the slide rail. Be equipped with roll adjustment gear (6) on printing coaster (14) upper portion layer board (7), there is the flat mouth of adjustment on this gear (6) upper portion, through adjusting the rotation that flat mouth drove gear (6), can realize a left side and play printer head rack (5), right reverse displacement of beating printer head rack (9). Install left cooling duct (12), right cooling duct (17) respectively in dual spray's both sides. Behind the reverse shift of multi -functional doubles printer head, can realize that the double ...

Method and apparatus for transmitting HE-LTF sequence

Embodiments of the present invention provide several Long Training Field (LTF) sequences conforming to 802.11ax in a wireless local area network.

Apparatus and method for transmission of signals through a nonlinear medium

Rice grain detection system and method of rice mill

The invention relates to the technical field of rice detection, in particular to a rice grain detection system of a rice husking machine, which comprises a detection box, the interior of the detection box is sequentially divided into a feeding and distributing chamber, a grinding chamber and a detection chamber from top to bottom through partition plates, and a feeding and distributing mechanism for uniformly distributing brown rice is arranged in the feeding and distributing chamber; a grinding mechanism for grinding brown rice is arranged in the grinding chamber, and a detection mechanism for detecting ground rice grains is arranged in the detection chamber. According to the invention, multiple synchronous detection processes can be carried out on the same batch of brown rice, the accuracy and reliability of detection data are ensured by analyzing and comparing multiple detection results, and the content of rice bran and germ in the brown rice can be detected; and the quality of brown ...

System and method for packet parsing and data reconstruction in an ieee 1394-1995 serial bus network

DATA TRANSMISSION METHOD AND APPARATUS IN WIRELESS LOCAL AREA NETWORK

An HE-LTF transmission method, comprising: the total number NSTS of space-time streams determining the number NHELTF of OFDM symbols contained in an HE-LTF domain; a transmission bandwidth and an HE-LTF mode determining an HE-LTF frequency domain sequence; the HE-LTF frequency domain sequence comprising, but being not limited to, an HE-LTF mode sequence under a 1x mode mentioned in the embodiment; and sending a time domain signal according to the number NHELTF of the OFDM symbols and the determined HELTF frequency domain sequence. The above solution has a relatively low PAPR value.

Tubular liquid medicine blender

The utility model discloses a tubular liquid medicine blender, the intensive mixing of water and pesticide is realized realizing in the liquid medicine pressure piping through this tubular liquid medicine blender. Utility model characterized in that shell (15) internal face keeps off distributing between (14) and one -level impeller (12) at the one -level disc has the protruding muscle of heliciform (3). When the protruding muscle of heliciform (3) is flowed through to the liquid medicine, make the liquid medicine form clockwise's whirl, when one -level impeller (12) are flowed through again to the liquid medicine, because the counter -clockwise turning of impeller, increase the mixed dynamics of liquid medicine once more. Behind the liquid medicine of the one -level of flowing through impeller (12), when the one -level circle of shell (15) inner wall department kept off (11), the liquid medicine formed the vortex, can further strengthen the mixture of liquid medicine. Through above -mentioned ...

Winding equipment for relay coil processing

The invention relates to the technical field of relay processing, in particular to a winding device for relay coil processing, which comprises a winding table, a bearing mechanism and a winding guide mechanism. When a coil is wound, the pressing roller in the winding guide mechanism clamps an enameled wire in the wire clamping groove in the rotating process, and the spiral wire clamping groove of the pressing roller carries out carding and limiting on the enameled wire in the rotating process of the pressing roller, so that the enameled wire is uniformly wound on an iron core framework, the winding uniformity of the relay coil is improved, and the winding quality of the relay coil is improved. The coil winding skew is prevented from influencing the normal use of the relay, and the enameled wire is pressed against the side wall of the iron core framework, so that the enameled wire is shaped under multiple times of rolling in the wire clamping grooves on the two compression rollers, and the ...

Electrically controllable integrated optical cross-connect

An integrated optical cross-connect device and associated methods are described, the cross-connect device comprising a plurality M of input waveguides formed in a first material layer of an integrated circuit, a plurality N of output waveguides formed in a second material layer of the integrated circuit, and a plurality MN of micromechanically actuated bridge elements formed in at least one intermediate layer lying between the first and second material layers. Responsive to an electrical control signal, each bridge element establishes an index-guided, nonreflecting optical path between its associated input waveguide and its associated output waveguide. Preferably, the bridge element comprises an arcuate waveguide structure substantially surrounded by air or other nonsolid material, the arcuate waveguide structure being twistably connected to a remainder of the intermediate layer by a narrow neck portion. When electrostatically actuated, one end of the arcuate waveguide structure rises to ...

Data transmission method and apparatus in wireless local area network

An HE-LTF transmission method is provided, including: determining, based on a total number NSTS of space-time streams, a number NHELTF of OFDM symbols included in an HE-LTF field; determining a HE-LTF sequence in frequency domain according to a transmission bandwidth and a mode of the HE-LTF field, where the HE-LTF sequence in frequency domain includes but is not limited to a mode of the HE-LTF field sequence that is in a 1× mode and that is mentioned in implementations; and sending a time-domain signal according to the number NHELTF of OFDM symbols and the determined HE-LTF sequence in frequency domain. In the foregoing solution, a PAPR value is relatively low.

High-energy quantum radiating equipment for supply hot air

A high-power air heater with quantum radiation is composed of an external frame, several groups of directional far infrared inward radiators arranged uniformly on the said external frame, an internalframe, mutually crossed for infrared absorbent plates installed on the said internal frame, and a wind guide port. Its advantages are high heat exchanger efficiency, no environmental pollution, and saving energy by more than 40%.

Automatic Gain Control Method and Communications Device in Wireless Local Area Network

Embodiments disclose an automatic gain control method and a communications device in a wireless local area network. The method includes generating a physical layer packet, where the physical layer packet includes a high efficiency long training field, the high efficiency long training field includes N symbols, a length of a cyclic prefix (CP — of a first symbol in the N symbols is greater than or equal to a minimum length required by a receiver device to perform automatic gain control (AGC) estimation, and N is a positive integer. The method also includes sending the physical layer packet to the receiver device.

Method And Apparatus For Determining CP Value

The present application provides a method for determining a CP. A STA performs channel estimation, determines a CP value according to the result of channel estimation, and sends indication information to an AP, wherein the indication information is used for indicating the CP value, so that the AP may choose a suitable CP according to the indication information. Therefore, overhead may be reduced and system throughput may be optimized. 1. A method for determining a cyclic prefix (CP) , comprising:performing, by a station (STA), channel estimation;determining, by the STA, a CP value according to a channel estimation; andsending, by the STA, indication information to an access point (AP), wherein the indication information indicating the CP value.2. The method according to claim 1 , wherein the sending indication information to an AP claim 1 , comprising:comparing the determined CP value with a pre-set CP value; andsending the indication information to the AP according to a result of comparison.3. The method according to claim 2 , wherein three CP values are used for indoor and outdoor transmission claim 2 , the length of indication information is 2 bits;if the determined CP value is equal to the pre-set CP value, the indication information is 00;if the determined CP value is not equal to the pre-set CP value, the indication information is 01 or 10 or 11; andwherein, 00 refers to a required CP value is equal to the pre-set CP value, 01 refers to the required CP value is 0.8 μs, 10 refers to the required CP value is 1.6 μs, and 11 refers to the required CP value is 3.2 μs.4. The method according to claim 2 , two CP values are used for outdoor transmission claim 2 , the length of indication information is 1 bit;if the determined CP value is equal to the pre-set CP value, the indication information is 0;if the determined CP value is not equal to the pre-set CP value, the indication information is 1; andwherein, 0 refers to a required CP value is equal to the pre-set CP ...

Sample introducing device for ion mobility spectrometer, method using it and ion mobility spectrometer

A sample introducing device for an ion mobility spectrometer (IMS) comprises: an inner sleeve element, defining an inner cavity inside, which is connected to the inlet of the drift tube by an inner passage on one end and has an inner lid with an inner hole on the other end; and an outer sleeve element, which is an eccentric sleeve set coaxially with and rotatably relative to the inner sleeve element in order to form a sleeve cavity between the inner and outer sleeve element. One end of the outer sleeve element is provided with at least one through-hole which is selectively connected with the inner passage, and the other end is provided with an outer lid on which there are a first outer hole selectively connected with the inner hole, and a second outer hole selectively connected with the sleeve cavity. The outer lid is rotatable between a first and second position with respect to the inner lid, so as to selectively introduce the sample under test from the inner cavity or the sleeve cavity ...

Central cavity stable fire tangential combustion chamber

PILOT SEQUENCE SENDING METHOD AND APPARATUS

A pilot sequence sending method and apparatus are provided. In the disclosure, after first-time masking is performed on a pilot sequence based on a cyclic orthogonal matrix, second-time masking is performed on the pilot sequence on which first-time masking has been performed, so that a PAPR of the pilot sequence on which second-time masking has been performed is less than a PAPR of the pilot sequence on which first-time masking has been performed, and further, orthogonality of the pilot sequence on which second-time masking has been performed can be higher than that of the pilot sequence on which first-time masking has been performed. This ensures accuracy of channel estimation and frequency offset detection.

Sample introducing device for ion mobility spectrometer, method using it and ion mobility spectrometer

A sample introducing device for an ion mobility spectrometer (IMS) comprises: an inner sleeve element, defining an inner cavity inside, which is connected to the inlet of the drift tube by an inner passage on one end and has an inner lid with an inner hole on the other end; and an outer sleeve element, which is an eccentric sleeve set coaxially with and rotatably relative to the inner sleeve element in order to form a sleeve cavity between the inner and outer sleeve element. One end of the outer sleeve element is provided with at least one through-hole which is selectively connected with the inner passage, and the other end is provided with an outer lid on which there are a first outer hole selectively connected with the inner hole, and a second outer hole selectively connected with the sleeve cavity. The outer lid is rotatable between a first and second position with respect to the inner lid, so as to selectively introduce the sample under test from the inner cavity or the sleeve cavity ...

Lean oil premixing and pre-evaporating combustion chamber head structure with cyclone/pre-film plate integrated primary combustion stage

The invention relates to a lean oil premixing and pre-evaporating combustion chamber head structure with a cyclone/pre-film plate integrated primary combustion stage. A central staged combustion mode is adopted for the head structure and divided into a pre-combustion stage and the primary combustion stage, the mode of combining diffusive combustion and cyclone premixing combustion is adopted for the pre-combustion stage, the mode of premixing and pre-evaporating combustion mode is adopted for the primary combustion stage, and combustion pollutants can be effectively reduced. A cyclone/pre-film plate integrated structure is adopted for the primary combustion stage, the structure is simple and reliable, first-stage fuel and second-stage fuel form oil films on the same pre-film plate and are atomized, evaporated and mixed under the action of two strands of cyclones, an even oil and gas mixture can be easily formed at an outlet of the primary combustion stage, and the combustion pollutants ...

Power control method for uplink collaboration power redistribution in LTE-A

The invention relates to a power control method for uplink collaboration power redistribution in LTE-A, comprising the steps of collaboration user selection and collaboration user power redistribution. The power control method for uplink collaboration power redistribution uses two steps of power application and power redistribution to carry out the secondary distribution on power obtained by a collaboration user under part power control, and the distribution is carried out according to link conditions from the user to respective anchor zone; the power redistribution scheme ensures that the intensitys from different user signals received by the receiving end have certain difference, which cause that the user with good channel conditions can be detected first, and then the interference elimination technology under collaboration is utilized to successively detect other users, which increases the possibility of correct detection; the proportion of users participating in collaboration in asystem ...

Middleware filter agent between server and PDA

A content server provides content to a first network device during a data synchronization between the two devices. A middleware filter selectively filters content provided by the content server such that selected content is provided to the first network device. The middleware filter is included within a second network device coupled between the content server and the first network device. The second network device acts as a proxy for the first network device to receive the content provided by the content server. The content is provided from the content server according to a subscription service between the content server and the first network device. The first network device is preferably a personal digital assistant (PDA) and the second network device is preferably a personal computer. Alternatively, the content server is coupled to the first network device, without the second network device coupled in between. In the alternative case, the middleware filter is included within the content ...

Method for transmitting HE-LTF sequence and apparatus

Embodiments of the present invention provide several Long Training Field (LTF) sequences conforming to 802.11ax in a wireless local area network.

Garlic essential oil extraction method

The invention relates to the technical field of foods, and particularly relates to a garlic essential oil extraction method. The garlic essential oil extraction method comprises the following steps: (1) a raw material treatment step; (2) a first-time extraction step, namely a liquid-liquid extraction step for preparing crude garlic oil, namely a crude product 1; (3) a secondary extraction step, namely a subcritical extraction step for preparing a crude product 2 and a crude product 3; (4) a garlic essential oil particle preparation step: oil-like garlic essential oil is prepared into garlic essential oil particles by virtue of a gas saturated solution particle technique, namely a garlic essential oil finished product is obtained. The method disclosed by the invention has the advantages that 1, by adopting double times of extraction, the method greatly increases the content of the garlic essential oil in the crude products; 2, the secondary extraction is subcritical extraction of which the ...

DATA COMMUNICATION METHOD AND RELATED APPARATUS

An access device constructs a beacon frame, where the beacon frame includes a newly added field, and the newly added field represents multiple data guard interval lengths supported by the access device. The access device broadcasts the beacon frame, so that a terminal selects an available guard interval length matching a data guard interval length supported by the terminal from the beacon frame, and performs data communication with the access device by using the available guard interval length. Data communication between the access device and the terminal can be implemented when the access device supports multiple data guard interval lengths. 1. A data communication method , comprising:encapsulating a beacon frame,into a first standard protocol data unit and encapsulating a beacon frame into a second standard protocol data unit by an access device; andthe first standard protocol data unit includes a preamble and bearer data; and a guard interval length of the preamble and a guard interval length of the bearer data is a first alternative guard interval length supported by the access device in the first standard;the second standard protocol data unit includes a legacy preamble, a high efficiency wireless local area network preamble, and bearer data; and, a guard interval length of the legacy preamble is the first alternative guard interval length supported by the access device in the first standard, and a guard interval length of the bearer data is a second alternative guard interval length supported by the access device in the second standard; andbroadcasting the first standard protocol data unit and the second standard protocol data unit by the access device.23-. (canceled)4. The method according to claim 1 , wherein the second alternative guard interval is a maximum guard interval length supported by the access device in the second standard.5. The method according to claim 4 , wherein the second standard is 802.11ax and the second alternative guard interval length ...

Multi-degree-of-freedom and large-deformation-resistant metal damping vibration isolation device and working method thereof

The invention relates to a multi-degree-of-freedom and large-deformation-resistant metal damping vibration isolation device which comprises a base, a supporting body is arranged on the opposite face of the base, a plurality of vibration isolation supporting legs are distributed between the supporting body and the base in an annular array mode, and the vibration isolation supporting legs incline outwards in the direction from the supporting body to the base. The vibration isolation supporting legs are connected with the supporting body through upper joint ball hinge bearings and connected with the base through lower joint ball hinge bearings, and a pre-tightening adjusting mechanism is further connected between the supporting body and the base. It can be ensured that the vibration isolator is in the optimal working range, the maximum damping effect is provided, and vibration conduction and the noise level are reduced. The shock absorber is not only suitable for some equipment needing a large ...

Method for calibrating interference variable of magnetic field in star by using magnetometer

The invention discloses a method for calibrating the interference variable of a magnetic field in a star by using a magnetometer. The invention mainly solves the problems that the satellite is limited by the internal space, the distance between a magnetometer and magnetic interference sources such as a storage battery and a driving motor is short, and a magnetic field measurement value is interfered, and provides a method for calibrating satellite internal magnetic interference by using the magnetometer loaded on the satellite, so that calibration compensation of satellite internal constant magnetic interference is realized. According to the method, a satellite is placed on a rotary table, the power-up working states of an on-orbit satellite and all single machines are simulated, geomagnetic field data measured by a magnetometer are recorded at the positions equally spaced by 10 degrees when the rotary table is rotated by 360 degrees, and the interference variables of three axes of a satellite ...

DATA TRANSMISSION METHOD AND APPARATUS IN WIRELESS LOCAL AREA NETWORK

An HE-LTF transmission method is provided, including: determining, based on a total number Nof space-time streams, a number Nof OFDM symbols included in an HE-LTF field; determining a HE-LTF sequence in frequency domain according to a transmission bandwidth and a mode of the HE-LTF field, where the HE-LTF sequence in frequency domain includes but is not limited to a mode of the HE-LTF field sequence that is in a 1× mode and that is mentioned in implementations; and sending a time-domain signal according to the number Nof OFDM symbols and the determined HE-LTF sequence in frequency domain. In the foregoing solution, a PAPR value is relatively low. 1. A channel estimation information transmission method comprising:determining, by a transmit apparatus, a high efficiency long training field (HE-LTF) sequence in frequency domain according to a transmission bandwidth and a mode of a HE-LTF field;{'sub': 'HELTF', 'sending, by the transmit apparatus, a time-domain signal, according to a number of orthogonal frequency division multiplexing (OFDM) symbols of the HE-LTF field, N, and the determined HE-LTF sequence in the frequency domain;'} [{'br': None, 'i': P', ',BI,P', 'P', 'P, 'sub': 80 MHz', '_', 'Primary', '80 MHz', '_', 'Secondary, 'HE-LTF=[1×LTF2×LTF], wherein 1 is +1, 2 is +1 or −1,'}, {'br': None, 'sub': 80 MHz', '_', 'Primary', '80 MHz', '_', 'A', '80 MHz', '_', 'A, 'i': ={L', 'R, 'LTF-LTF,0,-LTF},'}, {'br': None, 'sub': 80 MHz', '_', 'Secondary', '80 MHz', '_', 'A', '80 MHz', '_', 'A, 'i': ={L', 'R, 'LTF-LTF,0,−1×-LTF}'}], 'wherein the HE-LTF sequence in the frequency domain in a 1×HE-LTF mode over a 160 MHz bandwidth corresponds toand the BI is a sequence carried on a subcarrier between subcarriers on edges of two 80 M channels.3. The method according to claim 2 , wherein{'sub': 80 MHz', '_', 'Primary', '80 MHz', '_', 'Secondary, 'the primary 80 MHz (LTF) channel and the secondary 80 MHz (LTF) channel in the 160 MHz bandwidth are adjacent, the BI={0, 0, 0, 0, 0 ...

Preparation method of water-in-water multicolor paint

The invention discloses a preparation method of a water-in-water multicolor paint. The method comprises the following steps: firstly, preparing a basic paint; then, preparing a colloidal solution; granulating; and finally, mixing and stirring a silicone acrylic emulsion, water and a film-forming aiding agent, adding the prepared granulates and evenly stirring so as to obtain the water-in-water multicolor paint. According to the method, the processing technology is simple; the high-temperature equipment is not required; the effects of the prepared water-in-water multicolor paint, which are similar to natural granite and natural marble, can be formed on a basic surface by adopting a spraying technology; and the defects of the natural granite and the natural marble which are expensive in price, scarce in resource, high in radiation, high in machining cost, complex to construct, high in self-weight and poor in heat retaining property are overcome.

Novel safety and defence information processing terminal

The invention relates to a novel security information processing terminal which comprises a CPU (1), a JTAG interface (2), a GPRS module (3) or a net port (4) or the GPRS module (3), the net port (4), a program memory (5), a power supply module (6), a 232 serial port (7), a VGA interface (8) and a data memory (9). The security information collected by the terminal not only is displayed at a current display, but also sends warning information about monitored abnormal situation and prompts the supervisor. Multiple paths of information can be integrated together and sent to a control center from long distance. A plurality of monitoring points can be organized to construct a real time monitoring network used for integrated information control towards the security monitoring points of the whole city or the whole region and the whole province, so as to release the prior monitoring personnel at the control center of every building. According to the characteristics of the actual security monitoring ...

Passenger room air conditioner with independent electrical cavity

The utility model discloses a passenger room air conditioner with an independent electrical cavity. The evaporator comprises an evaporation cavity and a condensation cavity, a water outlet is formed in the side wall of the condensation cavity; a fan and a condenser are arranged in the condensation cavity; partition plate arranged in condensation cavity, the partition plate comprises a main plate and two side plates arranged on the two sides of the main plate. A cross beam is arranged at an opening of the condensation cavity; the main plate is fixed between the cross beam and a bottom plate ofthe condensation cavity, the side plates are fixed between the main plate and the side walls and fixedly connected with the bottom plate, the condensation cavity is divided into a main cavity and an electrical cavity through the partition plate, the electrical cavity is used for containing the electrical box, the water outlet, the draught fan and the condenser are located in the main cavity, and an ...

RPA robot control method and device, computer equipment and storage medium

The embodiment of the invention belongs to the technical field of RPA robots, and relates to an RPA robot control method, which comprises the following steps: receiving a to-be-processed task; obtaining performance evaluation information of each RPA robot in an RPA cluster, and selecting at least one RPA robot from the RPA cluster according to the performance evaluation information of each RPA robot; generating execution configuration information based on the selected at least one RPA robot and the to-be-processed task; and calling the at least one RPA robot to execute the to-be-processed task according to the execution configuration information to obtain a task execution result. The invention further provides an RPA robot control device, computer equipment and a storage medium. According to the invention, accurate management and control of the RPA robots in the RPA cluster are realized.

Multi-user, multi-input and multi-output pairing method and device

The invention discloses a multi-user, multi-input and multi-output pairing method, which is applied to a communication system capable of using a multi-user virtual multi-input and multi-output (V-MIMO) mode. In the pairing method, when a base station is used for carrying out the V-MIMO mode pairing, whether a first user allocated with resources and a candidate user can be paired is judged according to the following pairing judging modes that the pairing factors xi of the two users on the bandwidth occupied by the first user are calculated firstly, and only when the pairing factors xi are smaller than or not larger than a preset pairing threshold xi, the candidate user can be used as a primary selection user capable of being paired with the first user. Accordingly, the invention further provides a multi-user, multi-input and multi-output pairing device comprising a first user selection module and a pairing module of a multi-user V-MIMO mode. In the pairing algorithm adopted by ...

Summer cooling method for facility greenhouse

The invention provides a method for cooling a facility greenhouse in summer, which is characterized in that a cooling device is arranged outside the greenhouse, and a cooling agent circulates in the cooling device; the cooling agent is prepared from the following components in percentage by mass: 55 to 60 percent of deionized water, 35 to 40 percent of primary alcohol, 0.2 to 0.6 percent of a de-foaming agent, 0.3 to 0.7 percent of a water-soluble antioxidant, 0.6 to 0.8 percent of a metal corrosion inhibitor, 0.6 to 0.9 percent of a sterilizing agent, 1.0 to 1.5 percent of sodium silicate and 1.0 to 1.8 percent of noctilucent powder. The cooling device comprises a cold discharge assembly, a liquid cooling assembly, a circulating pump and a circulating pipeline, on one hand, part of illumination is shielded through the cooling agent, on the other hand, the cooling agent circulates through the cooling device to continuously keep low temperature, heat accumulated in the greenhouse is taken ...

Middleware filter agent between server and PDA

A content server provides content to a first network device during a data synchronization between the two devices. A middleware filter selectively filters content provided by the content server such that selected content is provided to the first network device. The middleware filter is included within a second network device coupled between the content server and the first network device. The second network device acts as a proxy for the first network device to receive the content provided by the content server. The content is provided from the content server according to a subscription service between the content server and the first network device. The first network device is preferably a personal digital assistant (PDA) and the second network device is preferably a personal computer. Alternatively, the content server is coupled to the first network device, without the second network device coupled in between. In the alternative case, the middleware filter is included within the content ...

Method and device for realizing selection of multiple antenna transmission modes

Clamping device for hardware machining

The utility model discloses a hardware machining clamping device which comprises a workbench, a containing table is arranged in the middle of the upper side of the workbench, supports are arranged on the two sides of the upper end of the workbench, first telescopic rods are arranged on the upper sides of the supports, clamping plates are arranged at the front ends of the first telescopic rods, and inserting grooves are formed in the clamping plates. Wherein the slot is welded in the clamping plate, a metal rod is arranged at the position, corresponding to the slot, of the outer side of the clamping plate, the metal rod penetrates through the clamping plate and extends into the slot, a spring is arranged at the position, located at the bottom end of the metal rod, in the slot, and the two ends of the spring are welded to the bottom end in the slot and the bottom end of the metal rod. When a workpiece is clamped by the clamping plate, the metal rod is firstly in contact with the workpiece ...

Preparation of six-arm star-shaped lead sulfide photoelectric detector for blood oxygen detection

The invention belongs to the technical field of optical detection, and particularly relates to a self-driven photoelectric detector and preparation of a flexible photoelectric detector based on six-arm star-shaped lead sulfide (PbS), which is characterized by comprising a dendritic PbS powder coating, a graphite interdigital electrode, a silver paste electrode and a metal copper wire, a 4B pencil is used for filling the outline of an interdigital electrode printed on paper by a laser printer, PbS powder is uniformly smeared on an active area in the middle of the interdigital electrode, silver paste is smeared on graphite bonding pads on the two sides, a metal copper wire is welded, and the flexible photoelectric detector is packaged. Test results show that the prepared device shows good self-driven optical detection performance and has the advantages of stable performance and the like. Electric volume pulse waves (PPG) have become a widely used optical sensing method that monitors blood ...

Heat sink for optical transceiver

An electronics module is provided. The electronics module includes a housing at least partially enclosing a first printed circuit board configured to couple the electronics module to a connector attached to a second printed circuit board. The electronics module includes a first heat sink disposed along a first surface of the housing and a second heat sink disposed along a second surface of the housing. One or more notches or apertures of the first printed circuit board are proximate to the connector thereby enabling an airflow through the second heat sink along the second surface of the housing to exhaust over a surface of the connector with an airflow through the first heat sink.

Method and apparatus for determining CP value

The present application provides a method for determining a CP. A STA performs channel estimation, determines a CP value according to the result of channel estimation, and sends indication information to an AP, wherein the indication information is used for indicating the CP value, so that the AP may choose a suitable CP according to the indication information. Therefore, overhead may be reduced and system throughput may be optimized.

Hydraulic pumping unit electrical system

The utility model relates to a hydraulic pumping unit electrical system, including main circuit module and controlling circuit module, main circuit module includes main motor section and mends oily motor section, control circuit module and include main motor control section, mend oily motor control section and upper and lower stroke control section, and main motor control section, oily motor control section of benefit and upper and lower stroke control section control circuit module 2, the beneficial effects of the utility model are that: simple structure, installation maintenance cost is low, can promote by a large scale in the oil field, has certain market competition.

High-energy quantum radiating equipment for supply hot air

Enhancement type static nozzle

The invention discloses an enhancement type static nozzle. A secondary-level induction ring is additionally provided, and one third portion of the front portion of the secondary-level induction ring is processed through convex granules and rough surfaces; liquid medicine is inducted by secondary-level static electricity, the static electric strength of drug particles is enhanced, the uniformity and absorption capacity of spraying liquid medicine fogdrop are improved, the amount of the liquid medicine is reduced, and therefore the profitability of the liquid medicine is improved. The nozzle is characterized in that an insulating support (3) is installed on the middle portion of a straight rod of the nozzle (3) through a fixed seat (1), a first-level static electricity ring (7) and a secondary-level static electricity ring (4) are both installed on the insulating support (3); the first-level static electricity ring (7) is of a barrel-shaped shape, and the secondary-level static electricity ...

Middleware filter agent between server and PDA

A content server provides content to a first network device during a data synchronization between the two devices. A middleware filter selectively filters content provided by the content server such that selected content is provided to the first network device. The middleware filter is included within a second network device coupled between the content server and the first network device. The second network device acts as a proxy for the first network device to receive the content provided by the content server. The content is provided from the content server according to a subscription service between the content server and the first network device. The first network device is preferably a personal digital assistant (PDA) and the second network device is preferably a personal computer. Alternatively, the content server is coupled to the first network device, without the second network device coupled in between. In the alternative case, the middleware filter is included within the content ...

Plugboard fixing device

The invention discloses a plugboard fixing device. The device comprises: a fixing sleeve, wherein the fixing sleeve comprises an end plate and a metal sleeve, the end plate is arranged at the end part of the metal sleeve, and the metal sleeve is inserted into a through hole in a PCB; and a female end provided with a through hole and a containing groove, wherein the through hole is communicated with the containing groove, a fixing piece is arranged in the containing groove, and the metal sleeve penetrates through the through hole to be connected with the fixing piece. The female end and the PCB are fixed through the fixing sleeve, and the disassembly is convenient.

Insulation scaffold detection device

The invention provides an insulating scaffold detection device which comprises a bottom frame, a sliding frame, a static load tensile machine, a tensile frame, a hanging point clamping device, a temporary fixed pulley and a curvature sensor. The bottom frame is of a rectangular frame structure with a pair of long frames and a pair of short frames, and the outsides of the two ends of the pair of short frames of the bottom frame are respectively provided with a floor board; the sliding frame is transversely and horizontally arranged between the two long side frames of the bottom frame in a sliding mode. The static load tensile machine is longitudinally and horizontally arranged on the sliding frame in a sliding mode, a steel cable and a hook are arranged on the static load tensile machine, and a tension sensor is arranged between the hook and the steel cable; the tension frame is arranged on the frame plate; a hanging ring is arranged at the lower part of the tension frame; the hanging point ...

DATA TRANSMISSION METHOD AND APPARATUS IN WIRELESS LOCAL AREA NETWORK

An HE-LTF transmission method is provided, including: determining, based on a total number Nof space-time streams, a number Nof OFDM symbols included in an HE-LTF field; determining a HE-LTF sequence in frequency domain according to a transmission bandwidth and a mode of the HE-LTF field, where the HE-LTF sequence in frequency domain includes but is not limited to a mode of the HE-LTF field sequence that is in a 1× mode and that is mentioned in implementations; and sending a time-domain signal according to the number Nof OFDM symbols and the determined HE-LTF sequence in frequency domain. In the foregoing solution, a PAPR value is relatively low. 1. A channel estimation information transmission method , comprising:determining, by a transmit apparatus, a high efficiency long training field (HE-LTF) sequence in frequency domain according to a transmission bandwidth and a mode of a HE-LTF field; and{'sub': 'HELTF', 'sending, by the transmit apparatus, a time-domain signal according to a number of orthogonal frequency division multiplexing (OFDM) symbols of the HE-LTF field, N, and the determined HE-LTF sequence in frequency domain,'}wherein the HE-LTF sequence in the frequency domain in a 1× HE-LTF mode over an 80 MHz bandwidth corresponds to:{'sub': '250', 'HE-LTF(−500:4:500)={−1, −1, +1, +1, +1, +1, +1, −1, −1, −1, +1, +1, −1, −1, +1, −1, +1, −1, −1, −1, −1, −1, −1, +1, +1, −1, −1, +1, −1, +1, −, −1, −1, −1, −1, +1, +1, −1, −1, +1, −1, +1, −1, +1, +1, +1, +1, +1, −1, −1, +1, +1, −1, +1, −1, +1, −1, −1, −1, −1, +1, −1, −1, −1, −1, −1, +1, +1, +1, −1, −1, +1, +1, −1, +1, −1, +1, +1, +1, +1, +1, +1, −1, −1, +1, +1, −1, +1, −1, +1, +1, +1, +1, −, +1, +1, −1, −1, +1, −1, +1, −, +1, +1, −1, −1, +1, −1, +1, −1, +1, +1, +1, +1, −1, +1, −1, −1, +1, −1, −1, +1, +1, +1, −1, −1, +1, +1, −1, +1, −1, +1, +1, +1, +1, +1, +1, −1, −1, +1, +1, −1, +1, −1, +1, +1, +1, +1, −1, +1, +1, −1, −1, +1, −1, +1, −1, +1, +1, +1, +1, +1, −1, −1, +1, +1, −1, +1, −1, +1, −1, −1, −1, −1, +1, −1, +1, ...

Sampling device for ion migration spectrometer and method for using the same, and ion migration spectrometer

The present invention discloses a sampling device for an ion migration spectrometer (IMS), comprising: an inner sleeve part, inside of which an inner cavity is defined, one end of the inner sleeve part is connected with an inlet of an migration pipe via an inner-layer channel, and the other end of the inner sleeve part is configured with an inner end cap having an inner opening; and an outer sleeve part, which is configured as an eccentric sleeve that is coaxial with the inner sleeve part and able to rotate with respect to the inner sleeve part, so as to form a sleeve cavity between the inner sleeve part and the outer sleeve part, wherein one end of the outer sleeve part is configured with at least one connecting opening that is selectively connected with the inner-layer channel, and the other end of the outer sleeve part is configured with an outer end cap, on which a first outer opening selectively connected with the inner opening and a second outer opening selectively connected with ...

Method for selecting uplink cells in LTE-A

The invention relates to a method for selecting uplink cells in LTE-A. The method comprises the following steps: 1) determining user types according to channel fading; 2) determining anchor-cell activation sets by users according to pilot signal receiving power; and 3) selecting anchor cells by the users according to the outage probability. The method selects the most appropriate anchor cells for the users through a cell selection technique to increase the throughput of a part of edge users so as to reduce the number of CoMP users and reduce the complexity brought to systems by cooperation. As the selection of the anchor cells for the users comprehensively considers the channel quality of uplinks between the users and a plurality of adjacent cell base stations and also considers the distribution situation of cell resources, the method not only ensures that the users can always communicate with the cells providing signals with better quality, but also solves the problem that the users are ...

Method and device for realizing selection of multiple antenna transmission modes

The invention provides a method and device for realizing selection of multiple antenna transmission modes. The method of the invention comprises the following steps: a base station determines that multiple antenna access modes need switching according to system load; the base station selects a first user of a virtual multiple input multiple output (V-MIMO) mode, and selects a matched user of the V-MIMO mode; and the base station sends control information to the matched user adopting the V-MIMO mode. By the scheme of the invention, the system realizes selection between single-user multiple input multiple output (SU-MIMO)/multi-user multiple input multiple output (MU-MIMO) and V-MIMO of the multiple antenna transmission modes. The invention effectively exerts the effect of MU-MIMO, relieves the problem of excessive load in an LTE uplink, and acquires higher system throughput by fully using space resources.

Satellite-borne K-band phased array antenna circularly-polarized waveguide radiation array

The invention relates to a satellite-borne K-band phased array antenna circularly-polarized waveguide radiation array, which can radiate microwave signals to the space, and can receive microwave signals from the space. The satellite-borne K-band phased array antenna circularly-polarized waveguide radiation array is composed of a plurality of antenna units, wherein each antenna unit comprises a matching diaphragm, an SMP coaxial feed socket, a square waveguide radiator, a waveguide-to-coaxial adapter, an SMP feed socket feed end, an impedance matching device and a circular polarizer, and adopts an integral design; and the matching diaphragms are adopted among the antenna units for deploying coupling characteristics among radiating units, so as to achieve more ideal standing wave performance and radiation characteristics. The satellite-borne K-band phased array antenna circularly-polarized waveguide radiation array is simple and reliable in structure, has the advantages of two-directional ...

REDV modification novel biodegradable coronary artery coating support

A REDV modification novel biodegradable coronary artery coating support is provided; a biodegradable high-molecular matrix material is coated on a naked metal support surface in the prior art so as to form a coating layer; the coating layer comprises a modification layer capable of effectively capturing endothelial progenitor cells in blood circulation in human body; the modification layer is REDV (active polypeptide, arginine-glutamic acid-aspartic acid-valine, Arg-Glu-Asp-Val ); the modified support has excellent biology compatibility, improves surface performance, enhances beneficial protein adsorption, increases anticoagulation capability, cannot harm basic physical and chemical performance of the coating, employs reaction active group grafting REDV, ensures biological activity of the polypeptide, and satisfies endothelial restoration needs.

Self-driven solar-blind ultraviolet photoelectric detector based on Ga2O3 thin film-PdTe2 particle/Si hybrid heterojunction

The invention belongs to the technical field of optical detection, and particularly relates to a self-driven photoelectric detector which sequentially comprises a metal In point electrode, a metal Pd front electrode, a Ga2O3 thin film-PdTe2 particle thin film layer, a Si single crystal substrate and a metal In back electrode from top to bottom. The Ga2O3 thin film-PdTe2 particle thin film layer is prepared by using methods of chemical vapor deposition, magnetron sputtering, nitrogen annealing treatment and the like. Test results show that the prepared thin film device shows good self-driven optical detection performance and has the advantages of stable performance and the like.

Self-repairing antibacterial waterborne polyurethane as well as preparation method and application thereof

The invention discloses self-repairing antibacterial waterborne polyurethane as well as a preparation method and application thereof, and belongs to the technical field of functional coatings. The preparation method comprises the following steps: carrying out a prepolymerization reaction on polyester diol, a monomer for forming multiple hydrogen bonds and diisocyanate under the action of a catalyst, adding a coumarin monomer and a quaternary ammonium salt monomer for a chain extension reaction, adding a neutralizer for neutralization, and then carrying out an emulsification reaction to prepare the self-repairing antibacterial waterborne polyurethane. The material is endowed with mechanical properties by utilizing a self-crosslinking structure of multiple hydrogen bonds and coumarin formed among molecular chains, the self-repairing efficiency of the material is effectively improved by utilizing the reversibility of the multiple hydrogen bonds and coumarin and the promotion effect of the ...

High-through-flow rotational flow combustion organization structure

The invention discloses a high-through-flow rotational flow combustion organization structure, and relates to the technical field of aero-engine combustion chambers, the high-through-flow rotational flow combustion organization structure comprises a base, a through opening is formed in the base, a rotational flow assembly is arranged in the through opening, a pre-combustion stage expansion sleeve is arranged at the end of the through opening, and a supporting plate is arranged on the outer wall of the base in a surrounding mode; a supercritical oil inlet hole is formed in the end, away from the base, of the supporting plate, a supercritical oil spraying hole is formed in the side wall of the supporting plate, and multiple sets of flow direction vortex generators are arranged on one side of the supercritical oil spraying hole and fixedly connected to the supporting plate. According to the device, supercritical fuel injection is adopted, fuel is heated to be in a supercritical state, the ...

UPLINK SERVICE TRANSMISSION METHOD AND APPARATUS AND WIRELESS LOCAL AREA NETWORK ACCESS POINT

In an uplink service transmission method, an access point divides an entire channel into resource blocks according to a quantity of stations that are connected to the access point, then allocates, to each station according to channel estimation information of each station, a resource block used to transmit uplink information, and separately sends channel allocation indication information to each station, so that each station finds, according to the channel allocation indication information, the resource block corresponding to the station, and transmits the uplink information by using the resource block, so as to implement that in an OFDMA system, multiple stations transmit uplink information in parallel, that is, resource blocks that are obtained by means of division can be simultaneously applicable to multiple stations.

Intelligent project settlement and completion settlement method, computer device and computer readable storage medium

The invention provides an intelligent engineering settlement and completion settlement method, a computer device and a computer readable storage medium. The method comprises the steps of automatically logging in an engineering settlement service system through an RPA robot and obtaining data of an engineering settlement project; an RPA robot automatically logs in an enterprise management system and enters a contract creating module, electronic contracts are created, and the RPA robot approves the created electronic contracts in batches according to rules of a service order; the RPA robot creates a procurement application, creates the procurement application according to the created capital construction, and generates a procurement application number; the RPA robot creates a receipt according to the created capital construction order and generates a material voucher number; and applying the RPA robot to execute a completion settlement step. The invention further provides a computer device ...

Generation of optical signals with return-to-zero format

An optical return-to-zero (RZ) signal generator and related methods are described in which a phase modulator causes a phase change in an optical signal responsive to a transition in a driving signal, and in which an interferometer receives the optical signal from the phase modulator and generates an optical pulse responsive to that phase change. Preferably, the interferometer introduces a fixed, unmodulated time delay between its two signal paths, the fixed time delay being selected such that destructive interference occurs at an output of the interferometer when the phase of the optical signal received from the phase modulator remains constant. However, when a rising or falling edge of the driving signal causes phases changes in the optical signal, the destructive interference at the output of the interferometer is disturbed, and an optical pulse is generated. The driving signal is a differentially encoded version of an input information signal. Alternatively, the driving signal is proportional ...

Old and useless nickel hydrogen power battery crusher device

The utility model discloses an old and useless nickel hydrogen power battery crusher device, breaker includes feed inlet, high pressure nozzle, cutting knife, roller bearing, valve on -off controller and crushed aggregates outlet valve, the feed inlet is located breaker's upper end, high pressure nozzle, cutting knife and roller bearing all set up breaker's inside, high pressure nozzle all is equipped with the solution export in level and vertical direction, high pressure nozzle is connected with the pickle, the cutting knife fixed mounting be in on the roller bearing, can follow the rotation of roller bearing and rotatory, crushed aggregates ejection of compact valve sets up breaker's lower extreme, with valve on -off controller connects, the control of valve on -off controller crushed aggregates outlet valve opening and closing. The device can realize the quick chopping of old and useless nickel hydrogen power battery, has realized that the high efficiency of electrolyte does not have ...

Information processing system based on RPA robot and working method thereof

The invention provides an information processing system based on an RPA robot and a working method thereof, the system comprises a data acquisition module and a data auditing module, original data output by the data acquisition module is acquired, and auditing parameters are applied to auditing the original data; the information archiving module is used for recording preset archiving parameters, receiving the data approved by the data auditing module, and archiving the data approved by the data auditing module according to the archiving parameters; the link aggregation module is used for acquiring an input rule base template, receiving the information output by the information archiving module, performing link analysis on the received information by using an RPA robot, and performing result aggregation feedback on the information formed by the information archiving module; and the entity archive module is provided with at least one application interface and outputs control information through ...

Damping emulsion with dual-core-shell structure, water-based damping coating with anti-condensation function and preparation method of damping emulsion

The invention discloses a damping emulsion with a dual-core-shell structure, a water-based damping coating with an anti-condensation function and a preparation method of the damping emulsion. The water-based damping coating is prepared from 20 to 50 parts of self-synthesized damping emulsion with a dual-core-shell structure, 5 to 30 parts of water, 0.1 to 0.5 part of a pH regulator, 1 to 3 parts of a dispersing agent, 0.1 to 0.5 part of a wetting agent, 0.1 to 1 part of a preservative, 0.3 to 1 part of a de-foaming agent, 0.5 to 1.5 parts of an anti-freezing agent, 0.5 to 1.5 parts of a coalescing agent, 0.5 to 3 parts of a thickening agent, 5 to 20 parts of a water repellent, 20 to 80 parts of inorganic filler and 5 to 20 parts of a flame retardant. Through combination of emulsion hydrophobic modification and addition of the water repellent, a hydrophobic coating with low surface energy is formed, the contact angle of water is larger than 120 degrees, a super-hydrophobic self-cleaning ...

Method for transmitting HE-LTF sequence and apparatus

Embodiments of the present invention provide several long training sequences that are in a wireless local area network and that comply with 802.11ax.

DATA COMMUNICATION METHOD AND RELATED APPARATUS

A data communication method and a related apparatus are provided, and the data communication method includes: constructing, by an access device, a beacon frame, where the beacon frame includes a newly added field, and the newly added field represents multiple data guard interval lengths supported by the access device; and broadcasting, by the access device, the beacon frame, so that a terminal selects an available guard interval length matching a data guard interval length supported by the terminal from the beacon frame, and performs data communication with the access device by using the available guard interval length. By using the present invention, data communication between the access device and the terminal can be implemented when the access device supports multiple data guard interval lengths.

METHOD FOR TRANSMITTING HE-LTF SEQUENCE AND APPARATUS

Embodiments of the present invention provide several long training sequences that are in a wireless local area network and that comply with 802.11ax. 1. A method for sending a long training sequence in a data packet in a wireless local area network , the method comprises:{'b': 101', '301, 'obtaining, by a sending end, the sending end is an access point (AP) or a station, according to a transmission bandwidth, a high efficiency long training field (HE-LTF) sequence corresponding to the transmission bandwidth (, ); and'}{'b': 102', '302, 'according to a size and a location of a resource block (RU) allocated to a station, mapping, a sequence segment, which is in the HE-LTF sequence and which location corresponds to the location of the allocated RU, to subcarriers in the allocated RU, and sending the sequence segment (, ); wherein a 2× HE-LTF sequence in an 80 MHz bandwidth transmission substantially corresponds to{'sub': '2x', 'HE-LTF(−500:2:500)=[+1, +1, −1, +1, +1, +1, −1, +1, +1, +1, +1, −1, −1, −1, +1, −1, −1, +1, +1, −1, +1, +1, +1, −1, −1, −1, −1, +1, +1, +1, +1, −1, +1, +1, +1, −1, +1, −1, −1, +1, −1, −1, −1, +1, +1, −1, −1, −1, +1, −1, −1, +1, −1, +1, +1, −1, +1, +1, −1, +1, −1, −1, −1, +1, −1, −1, −1, −1, +1, −1, −1, +1, +1, −1, +1, +1, +1, −1, −1, −1, −1, +1, −1, +1, +1, +1, −1, +1, +1, +1, +1, −1, −1, −1, +1, +1, +1, −1, −1, +1, +1, +1, −1, +1, +1, −1, +1, −1, −1, −1, −1, +1, −1, −1, −1, +1, −1, +1, +1, −1, +1, +1, −1, −1, −1, +1, −1, −1, −1, +1, −1, +1, +1, −1, +1, +1, +1, −1, −1, +1, +1, +1, −1, +1, +1, −1, +1, −1, −1, +1, −1, +1, +1, +1, −1, +1, +1, +1, +1, −1, −1, −1, +1, −1, −1, +1, +1, −1, +1, +1, +1, −1, −1, −1, −1, +1, +1, +1, −1, −1, −1, −1, +1, −1, −1, −1, +1, −1, +1, +1, +1, −1, −1, +1, +1, +1, −1, +1, +1, −1, +1, −1, −1, −1, −1, +1, −1, −1, −1, +1, −1, +1, +1, −1, +1, +1, −1, +1, +1, −1, −1, +1, −1, −1, −1, +1, +1, +1, +1, −1, +1, −1, −1, −1, +1, −1, −1, −1, −1, +1, +1, +1, +1, −1, −1, −1, +1, +1, +1, 0, 0, 0, +1, −1, −1, +1, +1, −1, +1, −1, −1, ...

Liquid granite water-in-water basic paint and preparation method thereof

The invention discloses a liquid granite water-in-water basic paint and a preparation method thereof. The liquid granite water-in-water basic paint respectively comprises the following components in percentage by weight: 45-55 percent of deionized water, 0.3 percent of dispersant, 0.3 percent of anionic wetting agent, 0.2 percent of foam killer, 0.5-1 percent of glycol, 0-2 percent of rutile titanium dioxide, 5-14 percent of kaolin, 0.5 percent of cellulose, 0.5 percent of stabilizer, 25 percent of elastic emulsion, 12 percent of cross-linking agent and 0.1 percent of sterilizing agent. The liquid granite water-in-water basic paint disclosed by the invention is simple to operate in process, free of the defects that an oil-in-water paint causes corrosion to the environment and a wall body and has short service life, and also free of the problems of poor simulation degree and large construction difficulty of a total water-based paint, can be used for overcoming the defects of other granite ...

System and method of patching missing digital video packets communicated in an IEEE 1394 compliant implementation

The present invention is a system and method that facilitates the reduction of presentation glitches in a digital video system. The present invention is a system and method that automatically determines if digital video (DV) data is missing from a stream of DV information and replaces or patches missing DV data with appropriate information to reduce the appearance of interruptions in the video (e.g., glitches in presentations). A communication packet carrying application data is received by an application data patching computer system. In one embodiment of the present invention, an IEEE standard 1394 compliant isochronous packet carrying digital video information is received. The application data (e.g., DV information) is separated from other communication packet protocol data (e.g., IEEE standard 1394 compliant header information). The received application data is analyzed to determine if it conforms to configuration constraints of predetermined application data format requirements. In ...

Data transmission method and apparatus in wireless local area network

An HE-LTF transmission method is provided, including: determining, based on a total number NSTS of space-time streams, a number NHELTF of OFDM symbols included in an HE-LTF field; determining a HE-LTF sequence in frequency domain according to a transmission bandwidth and a mode of the HE-LTF field, where the HE-LTF sequence in frequency domain includes but is not limited to a mode of the HE-LTF field sequence that is in a 1× mode and that is mentioned in implementations; and sending a time-domain signal according to the number NHELTF of OFDM symbols and the determined HE-LTF sequence in frequency domain. In the foregoing solution, a PAPR value is relatively low.

Data communication method and related apparatus

An access device constructs a beacon frame, where the beacon frame includes a newly added field, and the newly added field represents multiple data guard interval lengths supported by the access device. The access device broadcasts the beacon frame, so that a terminal selects an available guard interval length matching a data guard interval length supported by the terminal from the beacon frame, and performs data communication with the access device by using the available guard interval length. Data communication between the access device and the terminal can be implemented when the access device supports multiple data guard interval lengths.

METHOD FOR TRANSMITTING HE-LTF SEQUENCE AND APPARATUS

Embodiments of the present invention provide several long training sequences that are in a wireless local area network and that comply with 802.11 ax. 1. A method performed by an apparatus , for generating a long training sequence in a wireless local area network , the method comprising:{'sub': 'a', 'constructing a 2× high efficiency long training field (HE-LTF) sequence based on G={+1, +1, +1, −1, +1, +1, +1, −1, +1, −1, −1, +1, −1}, Gb={+1, +1, +1, −1, −1, −1, −1, +1, −1, −1, −1, +1, −1}'}{'sub': a', 'b, 'wherein the 2× HE-LTF sequence includes the Gsequence and the Gsequence; and the HE-LTF sequence further includes at least one or any combination of the following segment{'sub': 'a', 'sup': 'p', 'G, which is a sequence that is obtained after a phase of a value at a pilot location of the Ga sequence is reversed,'}{'sub': 'b', 'sup': 'p', 'G, which is a sequence that is obtained after a phase of a value at a pilot location of the Gb sequence is reversed,'}{'sub': 'c', 'G, which is a sequence that is obtained after a phase of a value on an even-numbered subcarrier of the Ga sequence is reversed,'}{'sub': 'd', 'G, which is a sequence that is obtained after a phase of a value on an even-numbered subcarrier of the Gb sequence is reversed,'}{'sub': c', 'c, 'sup': 'p', 'G, which is a sequence that is obtained after a phase of a value at a pilot location of a Gsequence is reversed, and'}{'sub': d', 'd, 'sup': 'p', 'G, which is a sequence that is obtained after a phase of a value at a pilot location of a Gsequence is reversed; and'}+1 or −1, which is located at a leftover subcarrier location.2. The method according to claim 1 , wherein the HE-LTF sequence further includes at least one of the following:{'sub': a', 'c', 'c', 'b', 'a', 'a', 'c', 'c', 'c', 'c', 'a', 'a', 'd', 'c', 'c', 'a', 'a', 'd', 'd', 'b', 'b', 'a', 'd', 'd', 'a', 'd', 'd', 'b', 'b', 'b', 'b', 'd', 'd', 'c', 'b', 'b', 'd', 'd, 'sup': p', 'p', 'p', 'p', 'p', 'p', 'p', 'p', 'p', 'p', 'p', 'p', 'p', 'p', 'p', ...

Magnetic absorption type connecting structure of display device

The invention discloses a magnetic absorption type connecting structure of a display device, which comprises a front frame, a rear cover and a display screen, wherein the display screen is connected and fixed in the rear cover, and the front frame is in magnetic absorption connection with the rear cover or the display screen through a magnet block. Compared with the prior art, the connecting structure in which the front frame is in magnetic absorption connection with the rear cover or the display screen through the magnet block has the characteristics of high assembly efficiency, low assembly strength, convenience for disassembly, low requirements for assembly technology, low research and development manufacture costs, good assembly quality and attractive appearance. The connecting structure can be widely used in electronic display devices, such as televisions, mobile phones, computer displays and the like.

Aminosugar derivate, preparation method and medical application thereof

The invention relates to the field of medicinal chemistry, an aminosugar derivate, a preparation method and a medical application thereof, in particular to a compound N-(1, 3, 4, 6-fourth-O-galloylhyperin acetyl-2-deoxidizing-beta D-pyranoid galactosyl)-3-(2,4-dichlorophenyl)-acrylamide (I). Pharmacological experiments show that the compound (I) can inhibit the neovascularization of chick chorioallantoic membrane, therefore, the compound can be used for treating tumors or chronic inflammation clinically.

SAMPLING DEVICE FOR ION MIGRATION SPECTROMETER AND METHOD FOR USING THE SAME, AND ION MIGRATION SPECTROMETER

The present invention discloses a sampling device for an ion migration spectrometer (IMS), comprising: an inner sleeve part, inside of which an inner cavity is defined, one end of the inner sleeve part is connected with an inlet of an migration pipe via an inner-layer channel, and the other end of the inner sleeve part is configured with an inner end cap having an inner opening; and an outer sleeve part, which is configured as an eccentric sleeve that is coaxial with the inner sleeve part and able to rotate with respect to the inner sleeve part, so as to form a sleeve cavity between the inner sleeve part and the outer sleeve part, wherein one end of the outer sleeve part is configured with at least one connecting opening that is selectively connected with the inner-layer channel, and the other end of the outer sleeve part is configured with an outer end cap, on which a first outer opening selectively connected with the inner opening and a second outer opening selectively connected with the sleeve cavity are configured, wherein the outer end cap is configured to be able to rotate between a first location and a second location with respect to the inner end cap, so as to selectively introduce a sample to be detected into the inner-layer channel via one of the inner cavity and the sleeve cavity. Moreover, the present invention further relates to a method for solid and gas sampling by using the above sampling device. 1. A sampling device for an ion migration spectrometer , which is adapted to introduce a sample to be detected into an inlet of a migration pipe of the ion migration spectrometer , wherein the sampling device comprises:an inner sleeve part, inside of which an inner cavity is defined, one end of the inner sleeve part is connected with the inlet of the migration pipe via an inner-layer channel, and the other end of the inner sleeve part is configured with an inner end cap having an inner opening; andan outer sleeve part, which is configured as an eccentric ...

Water-based damping coating with electromagnetic shielding function

The invention discloses a water-based damping coating with an electromagnetic shielding function, and relates to the technical field of coatings. The coating comprises the following components in parts by weight: 20-80 parts of an acrylic emulsion, 0-30 parts of water, 0.1-0.5 part of a pH regulator, 1-5 parts of a dispersing agent, 0.1-0.5 part of a wetting agent, 0.1-1 part of an antiseptic and mildew-proof agent, 0.3-1 part of a defoaming agent, 0.5-2 parts of an anti-freezing agent, 0.5-2 parts of a coalescing agent, 0.5-3 parts of a thickening agent, 0.2-1 part of a thixotropic agent, 5-30 parts of an electromagnetic shielding filler, 3-20 parts of poly (methyl methacrylate-butyl acrylate)/polypyrrole/nano Fe3O4 composite core-shell particles, 10-30 parts of an inorganic filler and 2-10 parts of a flame retardant. The damping material has the advantages that the damping temperature range is wide, the damping performance is high, high-frequency electromagnetic waves can be shielded, ...

Uplink multipoint collaboration implementing method combining inter-cell interference coordination

The invention relates to a realization method for the uplink multipoint cooperation (CoMP) combining with inter-cell interference coordination (ICIC), which comprises the following steps: 1) a site measures the SINR of the user to judge whether the user is a marginal user or a central user and distributes the working frequency band of the user based on ICIC frequency band classification method; 2) the user sends data to the cell according to the distributed working frequency band; 3) the site judges whether the site or the business of the user supports CoMP; if CoMP is not supported, the data is extracted by a linear or nonlinear method; if CoMP is supported, step 4) is followed; 4) the cell receives the sent data and processes the data. The method ensures the compatibility of CoMP and ICIC proposals, which can improve the marginal throughput of the cell and the average throughput of the system.

Uplink service transmission method and apparatus and wireless local area network access point

In an uplink service transmission method, an access point divides an entire channel into resource blocks according to a quantity of stations that are connected to the access point, then allocates, to each station according to channel estimation information of each station, a resource block used to transmit uplink information, and separately sends channel allocation indication information to each station, so that each station finds, according to the channel allocation indication information, the resource block corresponding to the station, and transmits the uplink information by using the resource block, so as to implement that in an OFDMA system, multiple stations transmit uplink information in parallel, that is, resource blocks that are obtained by means of division can be simultaneously applicable to multiple stations.

Optical processing technology for flat-panel TV shell

The invention discloses optical processing technology for a flat-panel TV shell. The technology comprises the following steps of: 1) manufacturing a transparent layer of which the shape corresponds to that of the flat-panel TV shell, wherein the outer surface of the transparent layer is a smooth surface, and the inner surface of the transparent layer is in a waving shape or a curved surface in prismatic arrangement; 2) coating optical materials capable of refracting or reflecting light rays on the inner surface of the transparent layer; and 3) bonding the transparent layer formed in the step 2 on the flat-panel TV shell by using an adhesive. After the flat-panel TV shell is processed, when the light rays is refracted by the outer surface of the transparent layer and enter the inner surface of the transparent layer, the light rays are reflected at different angles due to the fluctuation structure of the inner surface of the transparent layer, different color areas appear on the surface of ...

Method for extracting and preparing solanine from potatoes

The invention relates to the technical field of chemical engineering, in particular to a method for extracting and preparing solanine from spoiled potatoes. The method for extracting and preparing solanine from the potatoes comprises the following steps: (1) grinding; (2) extracting a auxiliary solvent through ultrasonic treatment; (3) filtering and treating; (4) extracting subcritical water; (5) extracting; (6) freezing and drying through vacuum microwaves to obtain the solanine. Compared with the prior art, the method has the following benefits that the method uses a subcritical water extracting technology, and the hydrogen bond of the subcritical water is opened or weakened along with temperature rise, so that water is extracted out from high to low. Through controlling the temperature and the pressure of the subcritical water, the continuous extraction and selective extraction of effective constituents in natural products from water-soluble constituents to liposoluble constituents are ...

Vehicle-mounted global position system (GPS) terminal

The invention relates to an electronic data processing plant, in particular to a satellite positioning and tracking terminal system. The vehicle-mounted global position system (GPS) terminal of the invention comprises a GPS module, a general packet radio service (GPRS) module, a display screen, a power module, a data storage, a program storage, a serial data storage, an input/output detection and control module, a joint test action group (JTAG) interface and a central processing unit, wherein the GPS module, the GPRS module, the display screen, the power module, the data storage, the program storage, the serial data storage, the input/output detection and control module and the JTAG interface are respectively and electrically connected with the central processing unit. The vehicle-mounted GPS terminal of the invention has multiple functions and small volume, and is convenient to carry.

SAGE channel estimation method based on partial interference cancellation

The invention relates to an SAGE channel estimation method based on partial interference cancellation. The method comprises the following steps: 1) initializing, in which a CIR initial value {h [i, n](0)}i = 1M, a weighting factor {wi(0)}i=1M and a total iteration number K are given and received signals passing through a channel among signals of each transmitting antenna are calculated respectively; 2) updating CIR, in which a CIR value h[i, n] of a path between a transmitting antenna i (i=k mod M +1) and a receiving antenna is only updated in a k-th step of iteration and the CIR values of the other paths is the same as the estimation values in last iteration; 3) updating the weighting factor of each antenna by utilizing LMS algorithm; 5) outputting a CIR estimation value. The invention provides the SAGE channel estimation method based on partial interference cancellation, which has better estimation performance and faster convergence rate, breaks through the restriction that the prior ...

Reverse osmosis water treatment device with anti-blocking mechanism

The invention discloses a reverse osmosis water treatment device with an anti-blocking mechanism, and relates to the technical field of reverse osmosis, the reverse osmosis water treatment device comprises a primary filter assembly, a booster pump, a reverse osmosis assembly, a temporary storage tank and a reuse assembly, the temporary storage tank is arranged on one side of the primary filter assembly, and the booster pump is arranged on one side, away from the primary filter assembly, of the temporary storage tank; the reverse osmosis assembly is arranged on the side, away from the temporary storage tank, of the booster pump, the reuse assembly is arranged on the side, away from the booster pump, of the reverse osmosis assembly, the primary filtering assembly is connected with the temporary storage tank, the temporary storage tank is connected with the booster pump, the booster pump is connected with the reverse osmosis assembly, and the reverse osmosis assembly is communicated with the ...

Anti-icing fireproof composite material for wind power and preparation method of anti-icing fireproof composite material

The invention discloses an anti-icing type fireproof composite material for wind power and a preparation method of the anti-icing type fireproof composite material. The coating is prepared from the following components in parts by weight: 6 to 12 parts of modified melamine, 6 to 12 parts of modified pentaerythritol, 12 to 20 parts of modified ammonium polyphosphate, 5 to 30 parts of fluorine-containing polyether polyol, 20 to 40 parts of hydroxy acrylic resin, 8 to 12 parts of nano expanded graphite, 5 to 10 parts of polytetrafluoroethylene powder, 5 to 10 parts of pigment, 10 to 20 parts of butyl acetate, 2 to 4 parts of first dispersing agent, 0.2 to 1 part of anti-settling agent, 0.2 to 1 part of flatting agent and 20 to 40 parts of curing agent. The anti-icing fireproof composite material for wind power can meet the anti-icing and fireproof performance of wind power equipment at the same time, an anti-icing and fireproof coating can be formed when the composite material is sprayed on ...

Data communication method and related apparatus

A data communication method and a related apparatus are provided, and the data communication method includes: constructing, by an access device, a beacon frame, where the beacon frame includes a newly added field, and the newly added field represents multiple data guard interval lengths supported by the access device; and broadcasting, by the access device, the beacon frame, so that a terminal selects an available guard interval length matching a data guard interval length supported by the terminal from the beacon frame, and performs data communication with the access device by using the available guard interval length. By using the present invention, data communication between the access device and the terminal can be implemented when the access device supports multiple data guard interval lengths.

Patient's seat is used in thorax puncture operation

The utility model discloses a patient's seat is used in thorax puncture operation, include cushion and base and be used for connecting the supporting leg of cushion and base, be provided with the chest cushion on the cushion, the chest cushion is the convex cushion with patient's chest looks adaptation, one side that the cushion was kept away from to the chest cushion is provided with two handrails that supply patient's arm to place. The simple structure of this patient's seat accords with the ergonomic design, can effectively avoid the thorax puncture to perform the operation the removal of the in -process patient upper part of the body and cause the aversion of operation point of puncture.

Collimation device and method in planar near-field measurement

The invention discloses a collimation device and method in planar near field measurement, and the device comprises a waveguide probe and a calibration plate which is used for providing a position reference standard for a to-be-measured planar antenna, and the relative position relation between the waveguide probe and the to-be-measured antenna is rapidly and accurately measured on the premise that the waveguide probe and the to-be-measured planar antenna are not contacted. And correcting the installation of the to-be-tested antenna. By adjusting the to-be-detected planar antenna to be parallel to the shadow edge image of the calibration plate, the installation position calibration of the to-be-detected planar antenna is completed; comparing the lengths of shadow edge images of the to-be-measured planar antenna and the calibration plate to obtain the distance between the waveguide aperture surface and the to-be-measured planar antenna; auxiliary lines are made on shadow edge images of the ...

METHOD FOR TRANSMITTING HE-LTF SEQUENCE AND APPARATUS

Uplink SU-MIMO layer switching method in LTE-A

The invention discloses an uplink SU-MIMO layer switching method in LTE-A, belonging to the mobile communications field. The invention aims to solve the problem that retransmission is very limited to the improvement of user information throughput and the peak rate and high spectrum efficiency of users are hard to reach. The method comprises the following steps: mapping scrambled and modulated amplitude modulation symbol according to the layer mapping method of downlink Release-8 to one or more transmission layers; exchanging data of all transmission layers between different transmission layers according to modulation symbol level, SC-FDMA symbol level or time slot level; combining the data processed through layer exchanging with retransmission mode and transmitting different layer exchanging copies by transmitting terminal according to different retransmission times. The combination of layer exchanging and retransmission mode provided by the invention can increase the accuracy of data retransmission ...

Supported metal oxide double active center polyethylene catalyst, process for preparing the same and use thereof

The present invention relates to a supported hybrid vanadium-chromium-based catalyst, characterized in the catalyst is supported on a porous inorganic carrier and a V active site and a inorganic Cr active site are present on the porous inorganic carrier at the same time. The present invention further relates to a process for producing a supported hybrid vanadium-chromium-based catalyst. The invention also provides the preparation method of the catalyst, titanium or fluorine compounds, vanadium salt and chromium salt according to the proportion, different methods of sequence and load on the inorganic carrier, after high temperature roasting, still can further add organic metal catalyst promoter prereduction activation treatment on it. The catalyst of the present invention can be used for producing ethylene homopolymers and ethylene/α-olefin copolymers. The hybrid vanadium-chromium-based catalyst can have high activity and produce polyethylene polymers having the properties of broad molecular weight distribution (Part of the products are bimodal distribution) and excellent α-olefin copolymerization characteristic.

Multi-point coordination-based data transmission method and device

The invention discloses a multi-point coordination-based data transmission method and a multi-point coordination-based data transmission device. The method comprises the followings steps of: receiving user data in coordinated resources and detecting coordinated user data from the user data by using a serving cell; and if the coordinated user data is detected to be false, informing coordinated cells of transmitting detected coordinated resource data to the serving cell and processing according to received feedback information from all of the coordinated cells. The method and the device reduce data interaction amount between base stations and improve system detection performance.

Chinese wolfberry drying method

The invention belongs to the field of processing of agricultural products and particularly relates to a Chinese wolfberry drying method. The Chinese wolfberry drying method provided by the invention comprises the steps: 1) cleaning fresh Chinese wolfberries: in the cleaning process, the Chinese wolfberries sequentially pass through a sewage tank, an alkali water tank, a clean water tank and a material plate conveyer; 2) carrying out pesticide residue degradation by ozone on the cleaned Chinese wolfberries; 3) carrying out laser anti-hardening treatment on the degraded Chinese wolfberries; 4) drying the Chinese wolfberries after anti-hardening treatment; and 5) carrying out color sorting, screening and grading and packaging on the dried Chinese wolfberries to obtained a dried Chinese wolfberry product. The Chinese wolfberry drying method provided by the invention solves the technical problems that the pesticide residues of the Chinese wolfberries are high and the Chinese wolfberries are ...

MIDDLEWARE FILTER AGENT BETWEEN SERVER AND PDA

A content server provides content to a first network device during a data synchronization between the two devices. A middleware filter selectively filters content provided by the content server such that selected content is provided to the first network device. The middleware filter is included within a second network device coupled between the content server and the first network device. The second network device acts as a proxy for the first network device to receive the content provided by the content server. The content is provided from the content server according to a subscription service between the content server and the first network device. The first network device is preferably a personal digital assistant (PDA) and the second network device is preferably a personal computer. Alternatively, the content server is coupled to the first network device, without the second network device coupled in between. In the alternative case, the middleware filter is included within the content server, and the content is selectively provided from the middleware filter, on the content server, to the first network device. 1. A network of devices to filter synchronized data , the network of devices comprising:a. a content server to store content;b. a first network device; andc. a middleware filter coupled to the first network device and to the content server such that during a data synchronization, content is received by the middleware filter from the content server according to the data synchronization and the middleware filter is programmed to selectively filter the content resulting in filtered content and send only the filtered content to the first network device, wherein the middleware filter selectively filters in response to meta data within the content, wherein the meta data comprises a data type of the content.2. (canceled)3. (canceled)4. The network of devices of wherein the middleware filter reads the meta data of the content received from the content server and ...

NUCLIDE IDENTIFICATION DEVICE

The present invention discloses a nuclide identification device, comprising: an upper casing portion; a lower casing portion, detachably combined with the upper casing portion to form a cavity; and a key circuit portion for performing nuclide identification, housed in the cavity and positioned between the upper casing portion and the lower casing portion, wherein a gap between the upper casing portion and the lower casing portion is sealed by a first waterproof structure. Compared with the prior art, the present nuclide identification device is capable of using in environment requiring to be waterproof and dustproof, so as to make a detection on the radioactive material in the environment. 1. A nuclide identification device , characterized in that , comprising:an upper casing portion;a lower casing portion, detachably combined with the upper casing portion to form a cavity; anda key circuit portion for performing nuclide identification, housed in the cavity and positioned between the upper casing portion and the lower casing portion,wherein a gap between the upper casing portion and the lower casing portion is sealed by a first waterproof structure.2. The nuclide identification device according to claim 1 , characterized in that claim 1 , the upper casing portion is provided with an input-output device and a handle claim 1 , and the lower casing portion comprises a battery claim 1 , a detector/detectors claim 1 , a signal amplifier and a battery door for allowing the battery to be replaced.3. The nuclide identification device according to claim 2 , characterized in that claim 2 , the input-output device comprises a display claim 2 , a switching keyboard claim 2 , a power switch claim 2 , a communication interface claim 2 , a communication interface door for the communication interface and an alarm light.4. The nuclide identification device according to claim 3 , characterized in that claim 3 ,a gap between the upper casing portion and at least one of the input- ...

Channel Estimation Method, Apparatus, and System

A method includes receiving, by two receivers respectively, a first channel estimation sequence from a first transmitter and a second channel estimation sequence from a second transmitter, where the second channel estimation sequence is a sequence that is orthogonal to the first channel estimation sequence and an auto-correlation function is an impulse function when channels are estimated thereby signals obtained based on auto-correlation of the first channel estimation sequence and on auto-correlation of the second channel estimation sequence are impulse signals, and a convolution between the first channel estimation sequence and the second channel estimation sequence is 0. 1. A channel estimation method for a 2×2 multiple-input multiple-output (MIMO) system , comprising:receiving, by a receive end, target signals respectively by using two receivers, wherein the target signal comprises target channel estimation sequence, wherein the target channel estimation sequence is a signal sequence generated by adding up a first transmission channel estimation sequence and a second transmission channel estimation sequence, wherein the first transmission channel estimation sequence is a signal sequence obtained after the first channel estimation sequence from the first transmitter has been transmitted on a channel, and wherein the second transmission channel estimation sequence is a signal sequence obtained after the second channel estimation sequence from the second transmitter has been transmitted on a channel, wherein the second channel estimation sequence is orthogonal to the first channel estimation sequence, and an auto-correlation function of the second channel estimation sequence is an impulse function; andestimating, by the receive end, 2×2 channels between the two transmitters and the two receivers according to each of the target channel estimation sequences, the first channel estimation sequence, and the second channel estimation sequence.2. The method according to ...

SUPPORTED METAL OXIDE DOUBLE ACTIVE CENTER POLYETHYLENE CATALYST, PROCESS FOR PREPARING THE SAME AND USE THEREOF

The present invention relates to a supported hybrid vanadium-chromium-based catalyst, characterized in the catalyst is supported on a porous inorganic carrier and a V active site and a inorganic Cr active site are present on the porous inorganic carrier at the same time. The present invention further relates to a process for producing a supported hybrid vanadium-chromium-based catalyst. The invention also provides the preparation method of the catalyst, titanium or fluorine to compounds, vanadium salt and chromium salt according to the proportion, different methods of sequence and load on the inorganic carrier, after high temperature roasting, still can further add organic metal catalyst promoter prereduction activation treatment on it. The catalyst of the present invention can be used for producing ethylene homopolymers and ethylene/α-olefin copolymers. The hybrid vanadium-chromium-based catalyst can have high activity and produce polyethylene polymers having the properties of broad molecular weight distribution (Part of the products are bimodal distribution) and excellent α-olefin copolymerization characteristic. 1. A supported hybrid vanadium-chromium-based catalyst , characterized in that the catalyst is supported on a porous inorganic carrier and wherein an inorganic Cr active site and V active site are present on the porous inorganic carrier at the same time.2. The catalyst according to claim 1 , wherein said catalyst includes inorganic carrier modified with titanium and fluorine.3. The catalyst according to claim 1 , wherein the inorganic carrier is selected from the group consisting of silica claim 1 , alumina claim 1 , titania claim 1 , zirconia claim 1 , magnesia claim 1 , calcium oxide and inorganic clays claim 1 , and combinations thereof.4. The catalyst according to claim 1 , wherein the inorganic carrier has a surface area from 50 to 500 m/g.5. The catalyst according to claim 1 , wherein the inorganic carrier has a pore volume from 0.1 to 5.0 cm/g ...

METHOD AND SYSTEM FOR DETECTING DRIVING ANOMALIES

According to one embodiment of the invention, a method for detecting driving anomalies comprises steps of: with at least one algorithm, processing raw data from On-Board Diagnostics of a car to generate time-series data, with the time series data as input, using an automatic driving behavior separating technology to identify a plurality of driving behaviors; with the driving behaviors as input, using an artificial intelligence technology to build up a driving anomaly detection model without labeling the driving behaviors; and issuing an alarm for driving anomaly identified according to an analyzing result of alarm signature of the driving behaviors. 1. a method for detecting driving anomalies , comprising:with at least one algorithm, pre-processing raw data from On-Board Diagnostics of a car to generate time-series data;with the time series data as input, using an automatic driving behavior separating technology to identify a plurality of driving behaviors;with the driving behaviors as input, using an artificial intelligence (AI) technology to build up a driving anomaly detection model to detect driving behaviors of the car without labeling the driving behaviors; andissuing an alarm for driving anomaly identified according to an analyzing result of alarm signatures of the driving behaviors.2. The method for detecting driving anomalies according to claim 1 , wherein the step of pre-processing raw data with at least one algorithm comprises a step of performing classification claim 1 , clustering claim 1 , or dimension deduction on the raw data sampled at the same time to generate the time series data.3. The method for detecting driving anomalies according to claim 1 , wherein at least one algorithm comprises one of Gaussian mixture model algorithm (GMM algorithm) claim 1 , K-means algorithm claim 1 , and principal component analysis (PCA).4. The method for detecting driving anomalies according to claim 1 , wherein the automatic driving behavior separating technology ...

Data Communication Method and Related Apparatus

A data communication method and a related apparatus are provided, and the data communication method includes: constructing, by an access device, a beacon frame, where the beacon frame includes a newly added field, and the newly added field represents multiple data guard interval lengths supported by the access device; and broadcasting, by the access device, the beacon frame, so that a terminal selects an available guard interval length matching a data guard interval length supported by the terminal from the beacon frame, and performs data communication with the access device by using the available guard interval length. By using the present invention, data communication between the access device and the terminal can be implemented when the access device supports multiple data guard interval lengths. 1. A data communication method , comprising:constructing a beacon frame by an access device, the beacon frame including a high efficiency (HE) capability element, the HE capability element including a field indicating whether each of multiple guard interval lengths is supported by the access device, and the field including multiple indicator bits, one indicator bit in the multiple indicator bits indicating whether the access device supports one guard interval length in the multiple guard interval lengths;a first bit in the multiple indicator bits corresponds to a 3.2 us guard interval length and indicates whether the access device supports the 3.2 us guard interval length or not;a second bit in the multiple indicator bits corresponds to a 0.8 us guard interval length and indicates whether the access device supports the 0.8 us guard interval length or not;encapsulating, by the access device, the beacon frame into a data unit; the data unit including a legacy preamble and bearer data, and the bearer data including the beacon frame;sending the data unit by the access device; andperforming data communication with a terminal by using an available guard interval length which ...

Input-shaping method and input-shaping unit for group-modulated input scheme in computing-in-memory applications

An input-shaping method for a group-modulated input scheme in a plurality of computing-in-memory applications is configured to shape a plurality of multi-bit input signals. The input-shaping method for the group-modulated input scheme in the plurality of computing-in-memory applications includes performing an input splitting step, a threshold setting step and an input shaping step. The input splitting step includes splitting the multi-bit input signals into a plurality of input sub-groups via an input-shaping unit. The threshold setting step includes setting at least one shaping threshold via the input-shaping unit. The input shaping step includes shaping at least one of the input sub-groups according to the at least one shaping threshold via the input-shaping unit to form a plurality of shaped multi-bit input signals so as to increase a probability of a bit equal to 0 occurring in the at least one of the input sub-groups.

METHOD FOR TRANSMITTING HE-LTF SEQUENCE AND APPARATUS

Embodiments of the present invention provide several long training sequences that are in a wireless local area network and that comply with 802.11ax. 1. A method for sending a long training sequence in a data packet in a wireless local area network , wherein the data packet complies with the 802.11ax standard , and the method comprises:obtaining, by a sending end, the sending end is an access point (AP) or a station, according to a transmission bandwidth, an HE-LTF sequence corresponding to the transmission bandwidth (101, 301); andaccording to a size and a location of a resource block (RU) allocated to a station, mapping, a sequence segment, which is in the HE-LTF sequence and which location corresponds to the location of the allocated RU, to subcarriers in the allocated RU, and sending the sequence segment (102, 302).4. The method according to claim 1 , wherein:the HE-LTF sequence is a stored sequence or a generated sequence.5. A method for receiving a data packet in a wireless local area network claim 1 , comprising:receiving, by a receiving end, the receiving end is a station or an access point (AP), a data packet that complies with the 802.11ax standard (201,401);obtaining, by the receiving end, according to a transmission bandwidth, an HE-LTF sequence corresponding to the transmission bandwidth (202,401); anddetermining, by the receiving end, according to a size and a location of a resource block RU allocated to a station, in the data packet, a corresponding HE-LTF sequence segment as a reference sequence that corresponds to the RU for channel estimation (203, 402).8. The method according to claim 5 , wherein:the HE-LTF sequence is a stored sequence or a generated sequence.9. An apparatus applied in a wireless local area network claim 5 , located on a side of a sending end claim 5 , the sending end is an access point (AP) or a station claim 5 , complying with 802.11ax standard claim 5 , and comprising a processor and a memory claim 5 , wherein the memory ...

DETECTIVE METHOD AND SYSTEM FOR ACTIVITY-OR-BEHAVIOR MODEL CONSTRUCTION AND AUTOMATIC DETECTION OF THE ABNORMAL ACTIVITIES OR BEHAVIORS OF A SUBJECT SYSTEM WITHOUT REQUIRING PRIOR DOMAIN KNOWLEDGE

According to one embodiment of the invention, a detective method, applied in a detective system comprising a activity-or-behavior model constructor, for activity-or-behavior model construction and automatic detection of activities of a subject system, comprising steps of: using an unsupervised machine learning technique to preprocess and analyze raw sensor data obtained from the monitored subject system to generate post data; with the post data as input, using a Natural Language Processing technique (NLP) to discover the activities or behaviors performed by the subject system; and with output data from the NLP technique as input, using a surprised machine learning technique to build an activity-or-behavior model for predicting the future behaviors of the subject system and automatically detecting abnormal activities or behaviors of the subject system; wherein the activity-or-behavior model is capable to handle multidimensional sensor data input from a plurality of sensor data streams and incorporate the sensor data values and a selected temporal information about at least one sensor data stream and between different sensor data streams. 1. A detective method , applied in a detective system comprising a activity-or-behavior model constructor , for activity-or-behavior model construction and automatic detection of abnormal activities or behaviors of a subject system , comprising steps of:using an unsupervised machine learning technique to preprocess and analyze raw sensor data obtained from the monitored subject system to generate post data;with the post data as input, using a Natural Language Processing technique (NLP) to discover the activities or behaviors performed by the subject system; andwith output data from the NLP technique as input, using a surprised machine learning technique to construct an activity-or-behavior model for predicting the future behaviors of the subject system and automatically detecting abnormal activities or behaviors of the subject system ...

HEAT SINK FOR OPTICAL TRANSCEIVER

An electronics module is provided. The electronics module includes a housing at least partially enclosing a first printed circuit board configured to couple the electronics module to a connector attached to a second printed circuit board. The electronics module includes a first heat sink disposed along a first surface of the housing and a second heat sink disposed along a second surface of the housing. One or more notches or apertures of the first printed circuit board are proximate to the connector thereby enabling an airflow through the second heat sink along the second surface of the housing to exhaust over a surface of the connector with an airflow through the first heat sink. 1. An electronics module , comprising:a housing enclosing a first printed circuit board configured to couple the electronics module to an external connector attached to a second printed circuit board;a first heat sink disposed along a first surface of the housing;a second heat sink disposed along a second surface of the housing; andan airflow channel defined along a surface of the second heat sink along the second surface of the housing to exhaust along with an airflow through the first heat sink.2. The electronics module with airflow management of claim 1 , further comprising:one or more apertures arranged in the first surface of the housing enabling the airflow through the second heat sink to exhaust over a surface of the connector; andone or more notches or apertures of the first printed circuit board proximate to the connector enabling airflow channel to exhaust3. The electronics module with airflow management of claim 1 , wherein the electronics module comprises an OSFP (octal small form factor pluggable) module claim 1 , and wherein the first surface and the second surface are opposing surfaces of the housing.4. The electronics module with airflow management of claim 2 , wherein the one or more notches are defined along opposing edges of a portion of the printed circuit board ...

DATA TRANSMISSION METHOD AND APPARATUS IN WIRELESS LOCAL AREA NETWORK

An HE-LTF transmission method is provided, including: determining, based on a total number Nof space-time streams, a number Nof OFDM symbols included in an HE-LTF field; determining a HE-LTF sequence in frequency domain according to a transmission bandwidth and a mode of the HE-LTF field, where the HE-LTF sequence in frequency domain includes but is not limited to a mode of the HE-LTF field sequence that is in a 1× mode and that is mentioned in implementations; and sending a time-domain signal according to the number Nof OFDM symbols and the determined HE-LTF sequence in frequency domain. In the foregoing solution, a PAPR value is relatively low. 1. A method for channel estimation information transmission , the method comprising:determining, by an apparatus, a long training field (LTF) sequence in a frequency domain according to a transmission bandwidth and a mode of a LTF field; andsending, by the apparatus, a time-domain signal according to the LTF sequence and a number of orthogonal frequency division multiplexing (OFDM) symbols of the LTF field;{'sub': 80MHz_A', '80MHz_A', '80MHz_A', '80MHz_A, 'wherein the LTF sequence in the frequency domain in a 1× LTF mode over a bandwidth that includes multiple 80 MHz channels corresponds to a LTF sequence that comprises any or combination of the following: L-LTF, R-LTF, -L-LTF, or -R-LTF;'}{'sub': 80MHz_A', '80MHz_A', '250, 'wherein L-LTF, 0, R-LTF=HE-LTF(−500:4:500); and'}{'sub': '250', 'wherein HE-LTF(−500:4:500)={−1, −1, +1, +1, +1, +1, +1, −1, −1, −1, +1, +1, −1, −1, +1, −1, +1, −1, −1, −1, −1, −1, −1, +1, +1, −1, −1, +1, −1, +1, −1, −1, −1, −1, −1, +1, +1, −1, −1, +1, −1, +1, −1, +1, +1, +1, +1, +1, −1, −1, +1, +1, −1, +1, −1, +1, −1, −1, −1, −1, +1, −1, −1, −1, −1, −1, −1, +1, +1, +1, −1, −1, +1, +1, −1, +1, −1, +1, +1, +1, +1, +1, +1, −1, −1, +1, +1, −1, +1, −1, +1, +1, +1, +1, −1, +1, +1, −1, −1, +1, −1, +1, −1, +1, +1, +1, +1, +1, −1, −1, +1, +1, −1, +1, −1, +1, −1, −1, −1, −1, +1, −1, +1, −1, −1, 0, −1, +1, +1, −1 ...

METHOD FOR TRANSMITTING HE-LTF SEQUENCE AND APPARATUS

Embodiments of the present invention provide several long training sequences that are in a wireless local area network and that comply with 802.11ax. 3. The method according to claim 1 , wherein the method comprises:storing the long training sequence; orstoring a sub-sequence configured for constructing the long training sequence.6. The method according to claim 1 , wherein the allocated RU corresponds to an RU formed by 26 consecutive subcarriers claim 1 , an RU formed by 52 consecutive subcarriers claim 1 , an RU formed by 106 consecutive subcarriers claim 1 , an RU formed by 242 consecutive subcarriers claim 1 , an RU formed by 484 consecutive subcarriers claim 1 , or an RU formed by 996 consecutive subcarriers.9. The apparatus according to claim 7 , wherein the apparatus further comprises a module claim 7 , configured to store the long training sequence claim 7 , or store a sub-sequence configured for constructing the long training sequence.12. The apparatus according to claim 7 , wherein the allocated RU corresponds to an RU formed by 26 consecutive subcarriers claim 7 , an RU formed by 52 consecutive subcarriers claim 7 , an RU formed by 106 consecutive subcarriers claim 7 , an RU formed by 242 consecutive subcarriers claim 7 , an RU formed by 484 consecutive subcarriers claim 7 , or an RU formed by 996 consecutive subcarriers. This application is a continuation of U.S. patent application Ser. No. 16/694,695, filed on Nov. 15, 2019, now U.S. Pat. No. 11,265,873. which is a continuation of U.S. patent application Ser. No. 15/905,567, filed on Feb. 26, 2018, now U.S. Pat. No. 10,645,687, which is a continuation of International Application No. PCT/CN2016/096973, filed on Aug. 26, 2016, which claims priority to Chinese Patent Application No. 201510532381.2, filed on Aug. 26, 2015 and Chinese Patent Application No. 201510849062.4, filed on Nov. 26, 2015. All of the afore-mentioned patent applications are hereby incorporated by reference in their entireties.The ...

Method and apparatus for transmitting he-ltf sequence

Scanning apparatus capable of filtering off a hologram

Scanning apparatus capable of filtering off a holographic picture

A scanning apparatus for scanning a hologram is capable of filtering off a holographic picture in the hologram. The hologram includes an image layer having an image to be scanned and a laser layer having the holographic picture. The laser layer has a maximum penetrable incidence. Light with an incidence larger than the maximum penetrable incidence fails to pass through due to light reflection so as to prohibit the image light of the image layer from light transmission. The scanning apparatus includes a load platform and a chassis. The load platform is used for placing the hologram thereon. Besides, the chassis includes a light source for emitting a light. When the scanning apparatus performs scanning, light penetrates the image layer to reflect the image to be scanned and further penetrates the laser layer. After a signal processing procedure, a scanned image is obtained without being influenced by the holographic picture.

System and method of patching missing digital video packets communicated in an IEEE 1394 compliant implementation

The present invention is a system and method that facilitates the reduction of presentation glitches in a digital video system. The present invention is a system and method that automatically determines if digital video (DV) data is missing from a stream of DV information and replaces or patches missing DV data with appropriate information to reduce the appearance of interruptions in the video (e.g., glitches in presentations). A communication packet carrying application data is received by an application data patching computer system. In one embodiment of the present invention, an IEEE standard 1394 compliant isochronous packet carrying digital video information is received. The application data (e.g., DV information) is separated from other communication packet protocol data (e.g., IEEE standard 1394 compliant header information). The received application data is analyzed to determine if it conforms to configuration constraints of predetermined application data format requirements. In one exemplary implementation, the initial information included in the application data section of the communication packet is analyzed to determine if it appropriately (e.g., sequentially) follows the information in previously received communication packet in accordance with predefined configuration definitions. If the information does not appropriately (e.g., sequentially) follow the information in previously received communication packet, a data patch is provided for lost or missing application data.

Method and apparatus for transmitting he-ltf sequence

Apparatus and method for transmission of signals through a nonlinear medium

An apparatus (302) and related method for transmitting an optical signal (307) through a nonlinear medium (102) such that nonlinearities caused by the medium are eliminated from the transmitted optical signal is described. The optical signal is presumed to have a duty cycle, wherein the optical signal is 'on' during an active portion of the duty cycle and 'off' during an inactive portion, the active portion being of equal or lesser duration than the inactive portion. The optical signal plus a delayed and weighted version of itself (316) are transmitted through the nonlinear medium without mutual interference. The transmitted signals (318) are then re-synchronized, weighted, and subtracted such that nonlinearities induced by the medium are cancelled, but such that a signal proportional to a delayed version of the original optical signal survives.

Wireless local area network data transmission method and device

Un método de transmisión de información de estimación de canal, que comprende: determinar (102), mediante un aparato, una secuencia de campo de acondicionamiento largo de alta eficiencia, HE-LTF, en el dominio de la frecuencia según un ancho de banda de transmisión y un modo de un campo HE-LTF, para una unidad de datos de protocolo física, PPDU, de alta eficiencia, HE; enviar (106), mediante el aparato, una señal en el dominio del tiempo de la PPDU de HE según un número de símbolos de multiplexación por división de frecuencia ortogonal, OFDM, del campo HE-LTF, NHELTF, y la secuencia de HE-LTF determinada en el dominio de la frecuencia; caracterizado por que la secuencia de HE-LTF en el dominio de la frecuencia en un modo de HE-LTF de 1x sobre un ancho de banda de 160 MHz se corresponde a: HE-LTF = [P1×LTF80MHz_Primario, BI, P2×LTF80MHz_Secundario], en donde P1 es +1, P2 es +1 o -1, LTF80MHz_Primario = {L-LTF80MHz_A, 0, R-LTF80MHz_A}, la LTF80MHz_Primario es una secuencia de acondicionamiento largo de un canal de 80 MHz primario, LTF80MHz_Secundario = {L-LTF80MHz_A, 0, -1×R-LTF80MHz_A}, la LTF80MHz_Secundario es una secuencia de acondicionamiento largo de un canal de 80 MHz secundario, y en donde el BI es una secuencia transportada en subportadoras entre las subportadoras en los bordes de los dos canales de 80 MHz; en donde {L-LTF80MHz_A, 0, R-LTF80MHz_A} = HE-LTF250(-500:4:500), y HE-LTF250 (-500: 4: 500) = {-1, -1, +1, +1, +1, +1, +1, -1, -1, -1, +1, +1, -1, -1, +1, -1, +1, -1, -1, -1, -1, -1, -1, +1, +1, -1, -1, +1, -1, +1, -1, -1, -1, -1, -1, +1, +1, -1, -1, +1, -1, +1, -1, +1, +1, +1, +1, +1, -1, -1, +1, +1, -1, +1, -1, +1, -1, -1, -1, - 1, +1, -1, -1, -1, -1, -1, -1, +1, +1, +1, -1, -1, +1, +1, -1, +1, -1, +1, +1, +1, +1, +1, +1, -1, - 1, +1, +1,-1, +1,-1, +1, +1, +1, +1,-1, +1, +1, -1, -1, +1,-1, +1,-1, +1, +1, +1, +1, +1, -1, -1, +1, +1, -1, +1, -1, +1, -1, -1, -1, -1, +1, -1, +1, -1, -1, 0, -1, +1, +1, -1, -1, +1, +1, -1, -1, +1, +1, -1, +1, -1, +1, +1, +1, ...

Version based content distribution and synchronization system and method

A version based content distribution and synchronization system configured for content distribution from a syndicator to a subscriber is disclosed. The preferred system comprises version based content, a syndicator, subscriber content, and a subscriber. Preferably, the content comprises a version number and the subscriber content comprises a subscriber content version number. The version based content preferably comprises digital media. The version based content is preferably stored and organized on the syndicator in a tree like structure. The syndicator preferably compares the version number of the version based content with the subscriber content version number of the subscriber content. If the version number is greater than the subscriber content version number, the version based content is transferred from the syndicator to the subscriber. Preferably, the version based content is distributed and synchronized via an internet protocol method.

Pilot frequency sequence sending method and apparatus

A pilot sequence sending method and apparatus are provided. In this application, after first-time masking is performed on a pilot sequence based on a cyclic orthogonal matrix, second-time masking is performed on the pilot sequence on which first-time masking has been performed, so that a PAPR of the pilot sequence on which second-time masking has been performed is less than a PAPR of the pilot sequence on which first-time masking has been performed, and further, orthogonality of the pilot sequence on which second-time masking has been performed can be higher than that of the pilot sequence on which first-time masking has been performed. This ensures accuracy of channel estimation and frequency offset detection.

Method of manufacturing drinks brewing article and manufacturing equipment using the same

Method for transmitting he-ltf sequence and apparatus

Embodiments of the present invention provide several long training sequences that are in a wireless local area network and that comply with 802.11ax.

Método y aparato para transmitir una secuencia de HE-LTF

Las realizaciones de la presente invención proporcionan varias secuencias de entrenamiento largas que se encuentran en una red de área local inalámbrica y que cumplen con 802.11ax. (Traducción automática con Google Translate, sin valor legal)

Method for transmitting he-ltf sequence and apparatus

Embodiments of the present invention provide several long training sequences that are in a wireless local area network and that comply with 802.11ax.

Method and system for detecting driving anomalies

According to one embodiment of the invention, a method for detecting driving anomalies comprises steps of: with at least one algorithm, processing raw data from On-Board Diagnostics of a car to generate time-series data, with the time series data as input, using an automatic driving behavior separating technology to identify a plurality of driving behaviors; with the driving behaviors as input, using an artificial intelligence technology to build up a driving anomaly detection model without labeling the driving behaviors; and issuing an alarm for driving anomaly identified according to an analyzing result of alarm signature of the driving behaviors.

Data transmission method and apparatus in wireless local area network

An HE-LTF transmission method is provided, including: determining, based on a total number NSTS of space-time streams, a number NHELTF of OFDM symbols included in an HE-LTF field; determining a HE-LTF sequence in frequency domain according to a transmission bandwidth and a mode of the HE-LTF field, where the HE-LTF sequence in frequency domain includes but is not limited to a mode of the HE-LTF field sequence that is in a 1x mode and that is mentioned in implementations; and sending a time-domain signal according to the number NHELTF of OFDM symbols and the determined HE-LTF sequence in frequency domain. In the foregoing solution, a PAPR value is relatively low.

Method for transmitting he-ltf sequence and apparatus

ABSTRACT Embodiments of the present invention provide method and apparatus for sending and receiving data in a wireless local area network. A sending apparatus obtains an HE-LTF sequence corresponding to a transmission bandwidth, maps a sequence segment to subcarriers in a resource block unit (RU) allocated to a station and sends the sequence segment. A receiving apparatus obtains an HE-LTF sequence corresponding to a transmission bandwidth, determines a sequence segment as reference sequence for channel estimation. The sequence segment is in the HE-LTF sequence and is determined according to a size and a location of the RU. The sending apparatus or the receiving apparatus may be an access point or a station. 2x and 4x sequences in different transmission bandwidth with low PARR are provided. Date Recue/Date Received 2020-08-13

Self-service express cabinet and package delivery method

The embodiments of the present disclosure disclose a self-service express cabinet and a package delivery method. The self-service express cabinet may include: a cabinet body including a sending window and a chamber, wherein the sending window may be connected with the chamber, and the sending window may be disposed on a surface of the cabinet body; a human-machine interaction device disposed on the cabinet body for information interaction with a user; an inspection device disposed in the chamber and capable of performing security inspection on a package dropped into the chamber for delivery, wherein the inspection device may have a receiving end and an output end, and at least part of the receiving end may be located within a scope of a forward projection of the sending window; and at least one storage component disposed in the chamber and corresponding to the output end.

Sacred structure of white lotus

Prediction method based on unstructured data

The present invention discloses a prediction method based on unstructured data, applied in a prediction system comprising an analyzing module and a model-building module to predict future behaviors of a user. The prediction method comprises steps of: with the analyzing module, analyzing a recording file with a natural language processing algorithm to generate at least one feature vector, wherein the recording file is related to a subject behavior in a predetermined observation period, at least one record in a form of unstructured data is stored therein, and the record comprises a time stamp and a recording text; and with the model-building module, using a surprised machine learning algorithm building a model with information corresponding to the feature vector as input for predicting future behaviors of a user, wherein the record is one of query record of domain name system, transaction record of automated teller machine, transaction record of structured query language and literal record.

Uplink service transmission method and apparatus, and access point of wireless local area network

Data communication method and related apparatus

Data communication method and related apparatus

Data Communication Method and Related Apparatus

A data communication method and a related apparatus are provided, and the data communication method includes: constructing, by an access device, a beacon frame, where the beacon frame includes a newly added field, and the newly added field represents multiple data guard interval lengths supported by the access device; and broadcasting, by the access device, the beacon frame, so that a terminal selects an available guard interval length matching a data guard interval length supported by the terminal from the beacon frame, and performs data communication with the access device by using the available guard interval length. By using the present invention, data communication between the access device and the terminal can be implemented when the access device supports multiple data guard interval lengths.

Six-lens projection lens module

Micro projection light source system

Method for transmitting HE-LTF sequence and apparatus

Embodiments of the present invention provide several long training sequences that are in a wireless local area network and that comply with 802.11ax.

Parallel re-sampler

A device for signal re-sampling and, in particular wireless signal re-sampling, comprising: 1) A signal processing unit adapted to: (a) Receive a plurality of time interleaved input signals. (b) Generate a plurality of filtered signals by filtering in parallel the interleaved input signals. The filtering is performed in a time-interleaved manner. (c) Integrate the plurality of filtered signals into a plurality of signal streams.

Data Transmission Method and Apparatus in Wireless Local Area Network

An HE-LTF transmission method is provided, including: determining, based on a total number of space-time streams, a number of OFDM symbols included in an HE-LTF field; determining a HE-LTF sequence in frequency domain according to a transmission bandwidth and a mode of the HE-LTF field, where the HE-LTF sequence in frequency domain includes but is not limited to a mode of the HE-LTF field sequence that is in a 1x mode and that is mentioned in implementations; and sending a time-domain signal according to the number of OFDM symbols and the determined HE-LTF sequence in frequency domain. In the foregoing solution, a PAPR value is relatively low.

Method of detecting sleep disorder based on eeg signal and device of the same

The present invention discloses a method of detecting sleep disorder based on an EEG signal and device of the same. The method and device only need an EEG signal for analysis to determine sleep disorder and abnormal score. Therefore, the method and device may reduce cost of collecting physical information and avoid from uncomfortable feeling of user who wears several sensors.

飲品沖泡物之製造設備

System and method for packet parsing and data reconstruction in an ieee 1394-1995 serial bus network

A system for packet parsing and data reconstruction in an IEEE 1394-1995 serial bus network includes a network interface unit (120), a processing unit, and a memory wherein an operating system resides. The operating system includes a streaming services module (150) and a multimedia Application Program Interface (API) module (170). The network interface unit receives a stream of packets from a transmission device. Each packet includes a header portion, and may also include a data portion. The data portion, if present, stores data content generated from source data organized in accordance with a predetermined format. The streaming services module stores and then parses the received packets. A method for packet parsing and data reconstruction includes the steps of receiving a packet stream; storing a first and a second packet; locating a header portion within the second packet immediately follows the header portion within the first packet. The method may also include the steps of determining whether the first packet corresponds to a particular boundary within the source data, such as the beginning of a DV frame; and transferring data content within the first packet to a buffer.

Traction converter

Memory unit with asymmetric group-modulated input scheme and current-to-voltage signal stacking scheme for non-volatile computing-in-memory applications and computing method thereof

A memory unit with an asymmetric group-modulated input scheme and a current-to-voltage signal stacking scheme for a plurality of non-volatile computing-in-memory applications is configured to compute a plurality of multi-bit input signals and a plurality of weights. A controller splits the multi-bit input signals into a plurality of input sub-groups and generates a plurality of switching signals according to the input sub-groups, and the input sub-groups are sequentially inputted to the word lines. The current-to-voltage signal stacking converter converts the bit-line current from a plurality of non-volatile memory cells into a plurality of converted voltages according to the input sub-groups and the switching signals, and the current-to-voltage signal stacking converter stacks the converted voltages to form an output voltage. The output voltage is corresponding to a sum of a plurality of multiplication values which are equal to the multi-bit input signals multiplied by the weights.

System and method applied with computing-in-memory

A system is provided. The system includes a multiply-and-accumulate circuit and a local generator. The multiply-and-accumulate circuit is coupled to a memory array and generates a multiply-and-accumulate signal indicating a computational output of the memory array. The local generator is coupled to the memory array and generates at least one reference signal at a node in response to one of a plurality of global signals that are generated according to a number of the computational output. The local generator is further configured to generate an output signal according to the signal and a summation of the at least one reference signal at the node.

Automatic gain control method and communications device in wireless local area network

Embodiments disclose an automatic gain control method and a communications device in a wireless local area network. The method includes generating a physical layer packet, where the physical layer packet includes a high efficiency long training field, the high efficiency long training field includes N symbols, a length of a cyclic prefix (CP — of a first symbol in the N symbols is greater than or equal to a minimum length required by a receiver device to perform automatic gain control (AGC) estimation, and N is a positive integer. The method also includes sending the physical layer packet to the receiver device.

System and method applied with computing-in-memory

A system is provided. The system includes a multiply-and-accumulate circuit and a local generator. The multiply-and-accumulate circuit is coupled to a memory array and generates a multiply-and-accumulate signal indicating a computational output of the memory array. The local generator is coupled to the memory array and generates at least one reference signal at a node in response to one of a plurality of global signals that are generated according to a number of the computational output. The local generator is further configured to generate an output signal according to the signal and a summation of the at least one reference signal at the node.

A method for making a sensing element for step-by-step self-organizing monitor

This invention relates to a method for making a sensing element for step-by-step self-organizing monitor, which comprises a strain body capable of conducting electricity, which can change its resistance value through strain. The strain body includes multilayer films formed by self-organizing of microsphere materials, which are laminated in turn to form a three-dimensional structure. Conductive fillers and curing materials are uniformly filled between adjacent films, and adjacent conductive fillers are overlapped to realize electricity conduction, the invention can effectively realize the use of the strain sensor under high temperature and high load, and provide higher monitoring accuracy.

Method and communication apparatus for automatic gain control in wireless local area network

Method for transmitting he-ltf sequence and apparatus

Embodiments of the present invention provide several long training sequences that are in a wireless local area network and that comply with 802.11ax.

Method for manufacturing polymer-based conductive composite material with integrated electrode

The invention provides a method for manufacturing polymer-based conductive composite material with integrated electrode, comprising: embedding a wire in a manufacturing device, respectively setting a wire lead-out hole and a wire lead-in hole at both ends of the manufacturing device, setting an injection hole at one end of the wire lead-in hole or the wire lead-out hole, setting an outflow hole at the other end, threading the wire from the wire lead-in hole into a molded inner tube, then passing through the wire lead-out hole, sealing a mold, and connecting the outflow hole with a vacuumizing device or communicating with the outside, and injecting a polymer-based composite material into the mold through an injection hole; the combination of the lead and the polymer-based composite material can realize the stability of contact electric signals, and the surface of the combination is smooth and flat.

Control device and method for traction converter

A control device and a control method for a traction converter. The control device comprises a voltage measurement circuit and a transmission control unit. The voltage measurement circuit is used for measuring a power grid voltage and outputting a voltage signal. The transmission control unit is used for determining a power supply mode of a line according to the voltage signal, obtaining, by means of calculation, the power grid voltage according to the voltage signal, and controlling an operation mode of a main circuit of the traction converter according to the power supply mode and the power grid voltage. The control device can automatically detect a power supply mode and control an operation mode of a main circuit of a traction converter, thereby avoiding the risk of human misoperation, and improving the running safety of a rail vehicle.

Anomaly flow detection device and anomaly flow detection method

An anomaly flow detection device and an anomaly flow detection method thereof are provided. The device can retrieve a plurality of training data transmitted between a monitored network and an external network, preprocess a plurality of packet headers of the pluralities of training data to obtain a plurality of training feature vectors, construct a flow recognition model with an unsupervised learning method, input the pluralities of training feature vectors to the flow recognition model to train the flow recognition model, retrieve a plurality of testing data transmitted between the monitored network and the external network, preprocess a plurality of packet headers of the pluralities of testing data to obtain a plurality of testing feature vectors, input the pluralities of testing feature vectors to the flow recognition model to identify whether the pluralities of packet headers of the pluralities of testing data are normal or abnormal, and determine the flow of the monitored network is abnormal according to the recognition result of the flow recognition model.

Anomaly flow detection device and anomaly flow detection method

An anomaly flow detection device and an anomaly flow detection method thereof are provided. The device can retrieve a plurality of training data transmitted between a monitored network and an external network, preprocess a plurality of packet headers of the pluralities of training data to obtain a plurality of training feature vectors, construct a flow recognition model with an unsupervised learning method, input the pluralities of training feature vectors to the flow recognition model to train the flow recognition model, retrieve a plurality of testing data transmitted between the monitored network and the external network, preprocess a plurality of packet headers of the pluralities of testing data to obtain a plurality of testing feature vectors, input the pluralities of testing feature vectors to the flow recognition model to identify whether the pluralities of packet headers of the pluralities of testing data are normal or abnormal, and determine the flow of the monitored network is abnormal according to the recognition result of the flow recognition model.

Sterilization device for UV water purifier

Pilot frequency sequence sending method and apparatus

Control device and method for traction converter

Control device and method for traction converter

A control device and a control method for a traction converter. The control device comprises a voltage measurement circuit and a transmission control unit. The voltage measurement circuit is used for measuring a power grid voltage and outputting a voltage signal. The transmission control unit is used for determining a power supply mode of a line according to the voltage signal, obtaining, by means of calculation, the power grid voltage according to the voltage signal, and controlling an operation mode of a main circuit of the traction converter according to the power supply mode and the power grid voltage. The control device can automatically detect a power supply mode and control an operation mode of a main circuit of a traction converter, thereby avoiding the risk of human misoperation, and improving the running safety of a rail vehicle.

Miniature projection lens module

A micro-strain-responsive intelligent and sensitive material and preparation method thereof

This invention provides a micro-strain-responsive intelligent and sensitive material and preparation method thereof, which comprises of polymer as matrix, carbon nanotubes as conductor, toughening agent, coupling agent, curing agent, curing accelerator, surfactant and dispersant. Strain resistance responsive intelligent and sensitive material can effectively detect the strain change of the road in the operation period, and has high monitoring accuracy and sensitivity and good durability, which is equivalent to the strength of the original roadbed and pavement. In terms of preparation, it has high cost performance and advanced technology; In the aspect of construction application, it has the advantages of simple construction and convenient operation, which can effectively reduce the number of construction personnel, and improve efficiency and reduce the cost of sensor replacement, and has great economic and social benefits.

Memory array with programmable number of filters

Aspects of the present disclosure are directed to devices and methods for performing MAC operations using a memory array as a compute-in-memory (CIM) device that can enable higher computational throughput, higher performance and lower energy consumption compared to computation using a processor outside of a memory array. In some embodiments, an activation architecture is provided using a bit cell array arranged in rows and columns to store charges that represent a weight value in a weight matrix. A read word line (RWL) may be repurposed to provide the input activation value to bit cells within a row of bit cells, while a read-bit line (RBL) is configured to receive multiplication products from bit cells arranged in a column. Some embodiments provide multiple sub-arrays or tiles of bit cell arrays.