114results about How to "Increase transfer rate" patented technology

The invention relates to the technical field of drying, and discloses a solar heat collection tube heating and drying device and a tube row manufacturing method thereof.The solar heat collection tube heating and drying device comprises a first rack, and a first heat collection module is arranged on an inclined mounting platform formed by a first-stage step and a second-stage step of the first rack; a drying cavity defined by first steel plates is installed on the outer wall of the three-stage step of the first rack, and a first partition plate is arranged in the drying cavity. A second partition is arranged on the top surface of the first partition, a third partition is arranged on the side wall of the second partition, and an air delivery pipe is arranged between the third partition and the first partition; an air inlet shutter is mounted on the first steel plate, a fan opposite to the air inlet shutter is mounted on the second partition plate, and an exhaust shutter is mounted on the first steel plate; a supporting beam located above the third partition plate is arranged on the first rack, a footstand is arranged on the supporting beam, and a drying bin used for drying corn is placed on the footstand; according to the device, the solar energy utilization rate is increased through the heat collection structure, heat collection and drying chambers are reasonably partitioned, the airflow circulation path is clear, and stable drying of corn is achieved.

This invention provides a method for preparing a foamed copper-based composite organic compound layer catalytic material, comprising the following steps: forming 8-hydroxyquinoline molybdenum (Mo(C)) on the surface of a foamed copper matrix. 9 H 6 NO) 4 Organic compound layer; 8-hydroxyquinoline molybdenum (Mo(C)) 9 H 6 NO) 4 The organic compound layer is converted into phthalimide 8-hydroxyquinoline molybdenum (C). 8 H 4 NO 2 ) 2 (C 9 H 6 NO) 2 ; Phthalimide 8-hydroxyquinoline molybdenum Mo(C) 8 H 4 NO 2 ) 2 (C 9 H 6 NO) 2 Conversion to copper phthalimide / 8-hydroxyquinoline molybdenum Cu(C) 8 H 4 NO 2 ) 2 / Mo(C 9 H 6 NO) 2 The foamed copper-based composite organic compound layer catalytic material is finally obtained. The catalytic material prepared by the method of this invention can effectively improve the Faradaic efficiency, ammonia selectivity, production rate, and nitrate removal rate of the electrochemical reduction of nitrate to ammonia technology.

The invention provides an organic compound, a preparation method thereof and an organic electroluminescent device, and belongs to the technical field of luminescent materials, and the organic compound has a structure as shown in a general formula I. The organic compound is used as a luminescent auxiliary material, can effectively improve the luminescent efficiency and stability of the organic electroluminescent device, and has good application prospects. The service life is prolonged, the driving voltage is reduced, and the device is endowed with more excellent comprehensive performance.

This invention discloses a transition metal phosphide catalyst, its preparation method, and its application, belonging to the field of electrocatalysis technology. The process includes: firstly, dissolving nickel salt, lanthanum salt, urea, and ammonium fluoride in deionized water to synthesize a nickel-lanthanum layered hydroxide nanosheet precursor via a hydrothermal method; secondly, preparing a lanthanum-doped nickel phosphide catalyst using a phosphating reaction; and thirdly, utilizing a lanthanum doping strategy to modulate the electronic structure of nickel phosphide and improve its electrocatalytic reaction performance. This lanthanum-doped nickel phosphide material exhibits good catalytic activity when used to catalyze hydrogen evolution and sulfide ion oxidation reactions. In an integrated two-electrode electrolyzer for sulfide ion oxidation-assisted hydrogen production, it outputs 10 mA cm⁻¹. ‑2 This invention achieves the goal of producing hydrogen and high-value-added sulfur products with low energy consumption by requiring a relatively low voltage of 0.525 V at a current density. It has advantages such as simple preparation process, controllable operating conditions, and low raw material costs, possessing the potential for large-scale production and serving as a high-performance catalyst for electrocatalytic hydrogen production and sulfur ion oxidation reactions.

This invention provides a hard carbon material, its preparation method, and its application. The preparation method includes the following steps: heating, mixing, and granulating a precursor, dopant, molten salt agent, and curing agent to obtain mixed particles; and carbonizing the mixed particles to obtain the hard carbon material. The preparation method of this invention, through the synergistic effect of heteroatom doping and molten salt etching, combined with mixed granulation, ensures the effectiveness of doping and etching, increases the interlayer spacing of the hard carbon material, introduces additional graphite microcrystal defects and active centers, and increases defects on the surface and edges of the carbon layer, thereby improving the cycle and rate performance of sodium-ion batteries.

The application discloses a communication system design method of a dynamic linked reconfigurable holographic surface and belongs to the wireless communication technical field.The application realizes the method as follows: 1, a single-source transmitter and a receiver are constructed, the transmitter is provided with a precoder, a switch selection link and a reconfigurable holographic surface, and the receiver is provided with a combiner, a switch selection link and a reconfigurable holographic surface; 2, a digital beam forming signal is input to the holographic antenna through a feed source selected by the switch selection link to form a transmitting signal; 3, a channel matrix is acquired, the feed source position is selected by utilizing an interactive entropy iteration, digital beam forming is realized through power distribution, the RHS unit excitation is realized by utilizing an element-by-element iteration, and the beam forming of the overall signal is completed; 4, a receiving signal is acquired by the receiver through a RHS combiner and a digital signal combiner mode; compared with the prior art, the application improves the communication transmission rate of the reconfigurable holographic surface in the random channel transformation scene.

This invention provides a continuous integration testing system and method for application software, relating to the field of software testing technology. A control terminal constructs test tasks based on the code to be tested and a pre-configured test process, sends them to a test host, and the test host initiates the code to be tested and executes the test tasks through an integration testing module. The integration testing module integrates distributed testing units, which execute corresponding test tasks and output test results. The distributed testing units include page character testing units, page layout testing units, media performance testing units, navigation function testing units, refresh update testing units, and traffic / power testing units. A test result feedback module receives test results from the distributed testing units and feeds them back to the test host. This invention solves the problem that current testing systems can only test individual projects one by one, which is inconvenient for continuous integration testing and results in low testing efficiency, thus improving software testing efficiency.

This application provides a multi-path data transmission method, electronic device, and storage medium. It acquires communication parameters for each path in a multi-path transmission scheme and determines the replication probability of the data packet to be transmitted based on these parameters and a preset multi-armed slot machine model. This allows for the transmission of part or all of the data in the data packet across multiple paths according to the replication probability, thus saving transmission latency. In the multi-path transmission scheme, all data in the data packet is transmitted through the path with the minimum transmission latency. In each path other than the path with the minimum transmission latency, a portion of the data in the data packet is replicated according to the replication probability and transmitted. In other words, all data in the data packet is transmitted through the path with the minimum transmission latency, while the other paths replicate the portion of the data corresponding to the replication probability. This reduces the retransmission rate, decreases transmission latency, and increases the transmission rate.

The invention belongs to the technical field of power information data collaborative modulation, and relates to a power information collaborative modulation method based on reference signal multi-degree-of-freedom modulation, which comprises the following steps of: decomposing serial input information data of a sending end into three paths of parallel sub-data, and respectively mapping the three paths of parallel sub-data into three independent modulation parameters, namely phase, frequency and amplitude, of a square wave signal; generating modulated rear wave signals, wherein different modulated rear wave signals correspond to different phase, frequency and amplitude parameter combinations; superposing the modulated rear wave signal to a reference signal to generate a gate-level signal, controlling a switch to act through the gate-level signal, and embedding information data into an output voltage ripple; at a receiving end, carrying out signal conditioning on the output voltage to obtain a conditioned ripple signal containing information data; and demodulating the conditioned ripple signal by adopting a sliding discrete Fourier transform algorithm to obtain transmitted information data. The time synchronization is high, and the anti-interference performance of the system is high.

The present disclosure relates to a vehicle-mounted device and a vehicle. The vehicle-mounted device comprises a first isolation circuit and a first device module. The first end of the first isolation circuit is configured to be connected with a vehicle-mounted power supply. The first end of the first device module is configured to be connected with the vehicle-mounted power supply, and the second end of the first device module is connected with the second end of the first isolation circuit, so that the second end of the first isolation circuit and the second end of the device module can be connected with a terminal device through the same power line. The first isolation circuit is configured to present a high impedance value to communication signals of different frequency bands transmitted on the power line, and the high impedance value is any impedance value greater than a preset impedance value. The technical solution can improve the reliability and stability of the power line communication link in the vehicle-mounted power line communication scene of the intelligent networked vehicle.

The application relates to the technical field of ceramics and energy storage, in particular to a Li-La-Zr three-site co-doped garnet solid electrolyte ceramic and a preparation method and application thereof, the chemical formula of the Li-La-Zr three-site co-doped garnet solid electrolyte ceramic is Li 6.25 (Ga 0.25 )La 2.5 (Sr 0.5 )Zr 1.5 (Ta 0.5 )O 12 The Li-La-Zr three-site co-doped garnet solid electrolyte ceramic provided by the application has high ionic conductivity and excellent air stability, and can improve the cycle stability and rate performance of a solid-state battery.

This invention provides an inorganic-organic composite solid electrolyte membrane and its preparation method, belonging to the field of solid electrolyte membrane technology. The invention uses anisole and tetrahydrofuran as a mixed solvent to dissolve methyl-terminated PEO. Tetrahydrofuran weakens the interaction between the ether oxygen atoms on the PEO chain and anisole, promoting the dispersion of PEO in the mixed solvent and facilitating the formation of a homogeneous coating slurry. Meanwhile, methyl-terminated polyethylene oxide not only improves the loss of ionic conductivity after the sulfide solid electrolyte is composited with a non-ionic binder, but its methyl termination also inhibits the degradation effect of polyethylene oxide on the sulfide solid electrolyte, better preserving the high-performance characteristics of the sulfide. Furthermore, the addition of Li3PO4 increases the lithium ion transport rate in polyethylene oxide, thereby improving the ionic conductivity of the composite solid electrolyte membrane.

The application discloses a silicon-carbon negative electrode material, a preparation method and a battery, and relates to the technical field of battery materials. The preparation method comprises the following steps: placing a porous carbon material in an inert atmosphere, pre-treating by heating, and removing impurities and moisture on the surface of the material; depositing a nano-silicon layer on the surface of the pre-treated porous carbon material in a gas phase; then depositing a carbon coating layer on the surface of the nano-silicon layer; and performing oxidation passivation treatment on the surface of the carbon coating layer, thereby obtaining the silicon-carbon negative electrode material.

The utility model discloses a 25G clock data recovery instrument which is composed of a clock extraction circuit and a high-speed signal input interface. The clock extraction circuit can accurately extract a clock signal from a 25G high-speed data signal, and a phase comparator, a voltage-controlled oscillator and a loop filter are utilized to track the phase change of the signal and generate a stable local clock synchronous with the data rate. The problem that a clock is easily interfered in high-speed data transmission is solved, a stable reference is provided for data processing and transmission, and the bit error rate is reduced. The high-speed signal input interface receives 25G data streams and works cooperatively with the clock extraction circuit. The stable local clock ensures that all links are accurately synchronized when data are received and processed, the data are processed according to a correct time sequence, the data processing efficiency is improved, the data integrity is ensured, and the system can meet application scenes such as 5G communication and high-speed network transmission which have high requirements for speed and stability.

This application provides a sensing data transmission method, an electronic device, and a computer-readable storage medium. The sensing data transmission method applied to a first device includes: accessing a network slice; sending first sensing data and a corresponding first identifier to a base station via the network slice; wherein the first identifier is used to identify the first device. The sensing data transmission method applied to a base station includes: receiving first sensing data and a corresponding first identifier sent by the first device via a network slice; wherein the first identifier is used to identify the first device; and sending the first sensing data and the first identifier to an edge cloud server. The sensing data transmission method applied to an edge cloud server includes: receiving first sensing data and a corresponding first identifier sent by a base station; wherein the first identifier is used to identify the first device; converting the format of the first sensing data to obtain third sensing data; and storing the correspondence between the first identifier and the third sensing data.

The application provides a duty cycle correction circuit and a chip, a pre-charging module is added, and a capacitor can be pre-charged to a predetermined voltage after each comparison of a comparator ends, so that the charging time of a charge pump module on two charging and discharging nodes can be shortened, the analog voltage output by the two charging and discharging nodes can quickly reach the input voltage value at which the comparator can compare in the next comparison, the starting time required by the comparator for each comparison is shortened, the response time and the stabilization time of the loop of the duty cycle correction circuit itself are shortened, the clock duty cycle calibration efficiency is finally improved, and the transmission rate of a signal is improved.

The present application relates to the technical field of electrochemical analysis detection, and particularly relates to a modified glassy carbon electrode for sensitive detection of tert-butyl hydroquinone, a preparation method and application, which has a high specific surface area and catalytic activity, and has good conductivity, and can realize sensitive detection of tert-butyl hydroquinone, the modified glassy carbon electrode comprises a glassy carbon electrode and a composite coating, the composite coating is wrapped on the surface of the glassy carbon electrode, and the composite coating is composed of graphene oxide and a Ti-based MOF derivative; the preparation method comprises the following steps: (1) preparation of MIL-125 (Ti); (2) preparation of TiO2 / NC; (3) preparation of 15% GO@TiO2 / NC; (4) preparation of a 15% GO@TiO2 / NC composite material dispersion liquid; (5) preparation of a modified electrode; and the application comprises the following steps: S1, establishing a concentration-electrochemical response signal relationship; S2, determining the concentration of a to-be-detected substance.

This invention relates to a Cr and Br dual-element doped polyanionic sodium-ion battery cathode material, sodium iron phosphate pyrophosphate, its preparation method, and its application, belonging to the field of sodium-ion battery technology. The general chemical formula of the cathode material of this invention is: Na₄Fe₂O₃. 3‑x Cr x (PO4)2P2O7Br y Where 0 < x < 0.5, 0 < y < 0.7; the precursor wet gel is obtained through a sol-gel process, dried, and then sintered. This invention relates to a Cr- and Br-doped polyanionic sodium-ion battery cathode material, sodium iron phosphate pyrophosphate. The Cr dopant enhances bulk stability, while the gradient distribution of Br forms a fast ion conduction layer on the surface. The two elements together improve the rate capability and cycle performance of the sodium-ion battery. This provides a modification strategy of significant reference value for cathode materials that suffer from low discharge specific capacity and poor cycle performance at high rates due to electron conductance differences.

This invention discloses a method for preparing hierarchical porous indium oxide nanotubes for lithium-ion battery anodes, comprising the following steps: Step (1) Indium salt and terephthalic acid are placed in an organic solvent and stirred evenly under oil bath conditions to obtain a homogeneous dispersion; Step (2) The homogeneous dispersion is further heated and stirred continuously to carry out the reaction, and after the reaction is completed, it is naturally cooled to room temperature to obtain a mixed reaction system; Step (3) The mixed reaction system is filtered, and the solid product obtained by filtration is washed with anhydrous ethanol and dried to obtain the precursor MIL-68(In); Step (4) The precursor MIL-68(In) is placed in a tube furnace and pyrolyzed in an air atmosphere to obtain hierarchical porous indium oxide nanotubes. This invention can solve the problems of poor cycle performance and rate performance of existing In2O3-based anode materials.

The application relates to a long-distance communication method and device between a master device and a slave device, equipment and a medium, wherein at least one high-speed serial transceiver is included in a field programmable gate array (FPGA) of the master device, and at least one optical module is further arranged in the master device; the method comprises the following steps: in response to a test instruction, determining a target high-speed serial transceiver and a target optical module corresponding to a target slave device indicated by the test instruction; sending a first data packet to the target slave device based on the target high-speed serial transceiver and the target optical module, and receiving a response packet returned by the target slave device; if the transmission delay of a communication link between the master device and the target slave device is within a preset range according to the response packet, generating a second data packet in response to a bus signal, the bus signal being used for indicating the transmission of data to the target slave device; and sending the second data packet to the target slave device based on the target high-speed serial transceiver and the target optical module. The application improves the success rate of long-distance communication between the master device and the slave device.

The application relates to the technical field of semiconductor and electronic chemicals, and particularly discloses an etching solution for selectively etching silicon nitride and titanium nitride and a preparation method thereof. The etching solution contains the following components in percentage by mass: 10-45% of phosphoric acid, 1-5% of hydrofluoric acid, 0.5-2.5% of a pH buffer, 0.01-1.8% of a solubilizer and 0.1-7% of an etching inhibitor, and the rest is water. The pH buffer can effectively stabilize the pH of the etching solution, the solubilizer can improve the solubility of the solvent in the etching solution, reduce the tension of the solid-liquid phase interface in the solution and promote the transmission rate of the interphase substances, and the etching inhibitor can form a film on the surface of the titanium nitride in the form of a coordination bond, so that the silicon nitride and the titanium nitride have a high selectivity ratio. The etching solution can inhibit the etching rate of the titanium nitride under the condition of a high etching rate of the silicon nitride, and can ensure the high selectivity ratio of the silicon nitride and the titanium nitride.

The present application relates to lithium ion battery cathode material preparation technical field, and is a kind of preparation method of nitrogen-phosphorus-potassium co-doped carbon-coated lithium-rich lithium iron phosphate cathode material, comprising the following steps: cocoa powder is added dropwise with acetic acid solution, after reaction, dropwise add hydrogen peroxide, add lithium hydroxide, and the pH of mixed solution is controlled by the amount of deionized water added;After adding deionized water and carbon-coated lithium iron phosphate precursor, stir evenly, vacuum freeze-drying is carried out, and the product is obtained after sintering treatment of dry product in inert atmosphere.Cocoa powder resource is renewable, environment-friendly, and can provide rich nitrogen, phosphorus and potassium elements to complete the doping modification of carbon-coated lithium iron phosphate.The present application provides an environmentally friendly, clean and simple cathode material modification and synthesis idea, and the prepared cathode material has good rate performance and capacity performance.

The application relates to a sodium titanate nanofiber / reduced graphene oxide composite electrode material and a preparation method and application thereof. The composite electrode material has a two-dimensional sheet structure, the particle size is 1-6 mu m, the thickness is 10-20 nm, is composed of a few-layer reduced graphene oxide and sodium titanate nanofibers with a diameter of 5-10 nm loaded on the reduced graphene oxide, and is prepared by taking the few-layer reduced graphene oxide as a template, uniformly loading titanium dioxide particles, and then carrying out hydrothermal treatment in an alkali solution. Compared with the prior art, the synthesis method is simple in process, easy to scale up, and high in controllability. As a negative electrode of a sodium ion battery or a positive electrode of a sodium battery, the sodium titanate nanofiber / reduced graphene oxide composite electrode material has the advantages of high initial coulomb efficiency, low working voltage, high capacity, excellent rate characteristics and cycle stability, and has a broad market application prospect.

This invention belongs to the field of electrochemiluminescence materials technology, and discloses a gold-silver nanocluster, its preparation method, and its application in the electrochemiluminescence-electrochemical dual-mode detection of chloramphenicol. The preparation method involves adding a silver source solution to a gold source solution, then adding an alkaline thiol β-cyclodextrin solution to obtain a mixed solution. Sodium bicarbonate is added to adjust the pH to 8.2-8.4, followed by incubation to obtain a crude product of gold-silver nanoclusters. The crude product is then purified by centrifugation and dialyzed to obtain the gold-silver nanoclusters. Furthermore, this invention uses these gold-silver nanoclusters as an ECL luminescent material to construct a sensor and applies it to the quantitative detection of chloramphenicol. This sensor innovatively achieves synergistic detection of ECL and DPV dual signals, with mutually verifiable detection results, exhibiting high sensitivity, excellent selectivity, good stability, and excellent repeatability.

The invention discloses a secret communication method based on energy-information integrated transmission, and relates to the field of power line communication. The method mainly comprises an anti-eavesdropping circuit design, a pseudo-random information coverage-based secret communication method, and realization of secret communication based on energy-information integrated transmission of the AC micro-grid. The method provided by the invention aims at the secret communication of the alternating-current micro-grid, and the design provides a new encryption strategy for the user communication of the alternating-current micro-grid due to the fact that the research on the energy-information integrated communication of the alternating-current micro-grid at present rarely relates to the privacy protection of the user information. According to the method, additional communication lines are not needed, information sending, transmission and receiving can be achieved through an existing controller and an alternating-current power line, cost is reduced, and secret communication of alternating-current micro-grid users is achieved through a pseudo-random information coverage method.

The application discloses a chemical modified electrode for detecting furazolidone and an electrochemical detection method thereof, and relates to the technical field of electrochemical detection, and comprises the following steps: (1) preparation of longan carbon; (2) preparation of nitrogen-doped longan carbon material (NCs); (3) preparation of nitrogen-doped longan carbon-polydopamine material (NCs-PDA); (4) preparation of NCs-PDA / SPCE modified electrode; (5) electrochemical detection of FZD; and (6) characterization of NCs-PDA / SPCE. The chemical modified electrode for detecting furazolidone and the electrochemical detection method thereof use longan shells as a carbon source, chitosan and urea as nitrogen sources, and prepare a nitrogen-doped porous carbon material through a high-temperature carbonization method, combine polydopamine and a portable disposable screen-printed carbon electrode (SPCE), prepare an electrochemical modified electrode NCs-PDA / SPCE for detecting furazolidone, and establish an electrochemical rapid detection method for detecting furazolidone in animal-derived food based on the modified electrode.

The invention relates to a modified graphite negative electrode material and a preparation method thereof, a negative electrode and a lithium ion battery. The modified graphite negative electrode material comprises graphite particles and an SEI precursor layer which is uniformly coated on the surface of each graphite particle and is constructed by lithium salt, wherein the lithium salt is of a crystalline state structure, and the thickness of the SEI precursor layer is 1-500 nm; during the first charging and discharging process of the battery, the lithium salt of the SEI precursor layer is subjected to electrochemical reaction prior to electrolyte, and an inorganic phase SEI with LiF and / or Li3PO4 as a main component is formed on the surface of graphite particles in situ. The negative electrode material disclosed by the invention realizes active formation and uniform distribution of SEI, even in a thick electrode, a continuous SEI layer can be formed on the surface of a deep graphite particle in the first charge-discharge and cycle process of a battery, the first-cycle coulombic efficiency is remarkably improved, the cycle life is remarkably prolonged, and the low-temperature and rate performance is improved; in addition, the electrolyte can more easily infiltrate the electrode, so that Li < + > is more smoothly transmitted in the thick electrode, and the electrochemical performance of the electrode is improved.

The invention discloses a broadband dual-channel magnetic coupling wireless power and data transmission slip ring, which adopts a non-contact magnetic coupling mode and solves the problems of short service life, unstable transmission, frequent maintenance and the like caused by mechanical wear of a traditional contact slip ring. Through the bipolar structure of the data coupling antenna, the magnetic flux sum of an inner ring and an outer ring is zero, and complete decoupling of power and data airspace is realized; the bandwidth of a data channel is expanded by adopting multi-stage L-shaped impedance matching, and mutual inductance of power and data coupling parts is stable in the 360-degree rotation process. The slip ring improves the transmission reliability, the rotation adaptability and the data throughput capacity, and is suitable for rotary connection systems in the fields of petroleum drilling, aerospace equipment and the like.

The application discloses a data transmission method and a display device. The method comprises the following steps: outputting a differential dimming signal and a differential clock signal through a display controller, wherein the differential dimming signal is used for carrying dimming data corresponding to a frame of image; receiving the differential dimming signal and the differential clock signal through a dimming controller, and generating target dimming data for backlight control based on the differential dimming signal and the differential clock signal. The dimming data and the clock signal are transmitted in the form of differential signals, so that the data transmission rate can be effectively improved, the layout wiring in the panel can be simplified, the product cost can be optimized, and in addition, the transmission mode of the differential signal can effectively reduce the electromagnetic interference problem and improve the display performance of the equipment.

The application relates to a signal modulation method, a demodulation method and a LoRa communication system. A total bit stream is divided into a plurality of parts, and is mapped into a frequency index set through G frequency index values. G LoRa signals are generated according to corresponding spreading factors, and are superimposed to obtain a single multiplexing signal of the spreading factor. The single multiplexing signals of all the spreading factors are superimposed to obtain a transmission signal, and signal modulation is completed. The transmission signal is received. For each single multiplexing signal, a de-chirp operation and a discrete Fourier transform are sequentially performed to obtain a frequency domain signal of each spreading factor. G peak values with the largest amplitudes in each frequency domain signal are detected, and corresponding frequency index values are recorded. The frequency index set corresponding to each spreading factor is estimated according to the frequency index values, and the bit stream in the frequency index set is recovered through reverse mapping. All the recovered bit streams are combined to obtain a total bit stream, and signal demodulation is completed. The application maximizes the transmission rate while ensuring the reliability of LoRa communication.