11results about How to "Efficiency advantage" patented technology

The application discloses a SOFC integrated power generation system containing a diesel pretreatment unit, and belongs to the technical field of solid oxide fuel cells. The SOFC integrated power generation system at least comprises a diesel pretreatment unit, a SOFC power generation unit and an intelligent control system. The pretreatment unit converts diesel into high-purity hydrogen-rich gas through desulfurization, denitrification and autothermal reforming processes. The SOFC power generation unit adopts a metal support type stack and realizes efficient power generation in combination with heat management. The intelligent control system can realize real-time monitoring and dynamic adjustment to ensure stable operation of the system. The power generation efficiency of the SOFC integrated power generation system can reach 55% to 58%, the fuel utilization rate reaches more than 90%, and the emission is low. The SOFC integrated power generation system is suitable for distributed power generation, mobile power sources, emergency power sources and automobile fuel cells and the like application scenarios, and has the characteristics of high efficiency, environmental protection and stability.

This utility model discloses a rotating device for cable winding, belonging to the field of cable processing technology. It includes two sets of parallel and symmetrically arranged supporting rotating mechanisms and a winding reel. The housing of each supporting rotating mechanism contains two sets of supporting rollers that can move axially. The sidewall flange of the winding reel is rotatably connected to the outer walls of the two sets of supporting rollers. At opposite ends of the two sets of supporting rotating mechanisms, two sets of clamping rotating mechanisms are respectively arranged. Each clamping rotating mechanism includes a height-adjustable movable base and a clamping drive assembly installed at the telescopic end of the movable base. The movable base can drive the limiting guide post of the clamping drive assembly to engage with the connecting plate, thereby causing the clamping drive assembly to drive the winding reel to rotate synchronously. This utility model uses two sets of supporting rotating mechanisms installed on the ground to support the cable winding reel, making the winding reel more stable and simplifying the installation and disassembly process, thus improving operational convenience.

The application discloses a composite diaphragm for lithium ion batteries, a preparation method of the composite diaphragm and a lithium ion battery. The composite diaphragm comprises a porous base diaphragm, a first microcapsule coating layer coated on a first surface of the porous base diaphragm and a second microcapsule coating layer coated on a second surface of the porous base diaphragm. The first microcapsule is composed of a lithium source compound core material and a polymer wall material coated outside the lithium source compound core material, and the second microcapsule is composed of a lithium-poor active material core material and a polymer wall material coated outside the lithium-poor active material core material. The softening temperature of the polymer wall material is in the range of 90 DEG C to 230 DEG C. When the temperature of the battery reaches a set trigger temperature, the lithium source compound on the first surface side releases lithium to be inserted into a delithiated positive electrode to reduce the positive electrode potential, and the lithium-poor active material on the second surface side releases lithium to be inserted into a lithium-inserted negative electrode to increase the negative electrode potential, so that the battery state of charge is reduced, and chemical intervention is completed before thermal runaway.

This invention provides a high-strength polyester fiber for outdoor use with radiative cooling function. The preparation method includes the following steps: titanium dioxide, silicon dioxide, silicon carbide, and zirconium phosphate are blended and ground in a certain proportion, dispersed in an acetone solution with a dispersant added, and then ultrasonically treated to form a nanoparticle dispersion; the nanoparticle dispersion is mixed with polyester chips; the mixed composite material is fed into a screw extruder for melt blending to form a spinning solution; the spinning solution is precisely metered by a metering pump and extruded through a spinneret to form fiber bundles, the spinneret being equipped with a slow-cooling heating device; the fiber bundles are post-treated to obtain high-strength polyester fibers. This invention selects a specific combination of titanium dioxide, silicon dioxide, silicon carbide, and zirconium phosphate, combined with specific slow-cooling technology and high-ratio stretch setting, to give the fiber excellent radiative cooling performance and mechanical strength, which can be widely used in outdoor clothing, awnings, car covers, and other fields.

The invention relates to a Mama-based frequency sensing multi-image fusion traffic flow prediction method, and belongs to the field of deep learning and intelligent traffic. Comprising the following steps: constructing two graph structures based on decomposed trend signals and event signals: a trend graph is used for learning a trend mode between nodes, an event graph is used for capturing a propagation mode of sudden disturbance in a traffic network, and original signals are used for constructing a key node graph; the spatial dependency relationship in the traffic network is comprehensively described by identifying strong aggregation nodes and distribution capability nodes; through diffusion convolution, information propagation is carried out on the three graph structures, and hierarchical feature fusion from local scale to global scale is realized; a multi-head attention mechanism is adopted, features from an event graph, a trend graph and a key node graph are adaptively integrated, and contribution weights of the graphs are dynamically adjusted to adapt to time-varying traffic features; a Mama model is used for capturing a time dependency relationship, and meanwhile, the calculation efficiency in long sequence modeling is kept and the prediction precision is improved.

A novel tapless resonant push-pull photovoltaic energy storage inverter topology is disclosed, relating to the field of energy storage system topology control technology, specifically a novel tapless resonant push-pull photovoltaic energy storage inverter topology. It includes a photovoltaic boost MPPT circuit, a DC-AC bidirectional inverter circuit, and a battery-side DC-DC tapless resonant push-pull bidirectional isolated charging circuit. The photovoltaic boost MPPT circuit is used to increase the DC voltage of the photovoltaic panels and perform maximum power point tracking control. The DC-AC bidirectional inverter circuit performs bidirectional DC-to-AC conversion through three independent T-type three-level circuits, each independently controlled, with low harmonic output current. The battery-side DC-DC tapless resonant push-pull bidirectional isolated charging circuit includes a tapless transformer and a push-pull circuit. Through innovative tapless resonant push-pull circuit, dual-transformer interleaved control technology, and three-level inverter circuit design, it achieves efficient power conversion, optimized battery charge and discharge management, and reduced high-frequency ripple and electromagnetic interference, thereby improving the overall efficiency, stability, and reliability of the photovoltaic energy storage system.

The invention relates to a dipyrrolothiophene compound, a photoelectric device and photoelectric equipment. The structural formula of the dipyrrolothiophene compound is shown in the specification, in the formula, R1, R2, R3, R4, R5 and R6 are respectively and independently selected from one or a combination of more of hydrogen, an energy level regulating group, a conjugate group, a solubility regulating group, an anchoring group and a polar group, the molecule takes a dipyrrolothiophene ring as a core to form a symmetrical planar tricyclic system, and a rigid planar structure without obvious distortion is formed. The rigidity derives from condensed ring conjugated strong bond energy, thermal vibration distortion of molecular configuration is effectively avoided, and a stable conjugate channel is provided for charge transfer. And the prepared photoelectric device and photoelectric equipment are high in photoelectric conversion efficiency.

The application provides a parameterized design method for fixed frog rail and wing rail profile considering geometric characteristics, belongs to the technical field of target identification, and can realize high-precision reconstruction of the profile of the fixed frog rail and the wing rail, so that the profile parameter adjustment of the rail and the wing rail is more targeted and predictable; can automatically execute processes such as drawing, design, modification and output, and compared with a traditional design method, the method has significant advantages in profile fitting accuracy and reconstruction efficiency; with the aid of the parameterized design method, the design rail and wing rail type can be flexibly adjusted, and rapid parameterized reconstruction of the fixed frog rail and wing rail structure is realized.

The application discloses a perovskite flexible solar cell and lithium-sulfur battery integrated self-charging system and a preparation method thereof. The system comprises a perovskite flexible solar cell and a lithium-sulfur battery. The perovskite flexible solar cell comprises a flexible substrate, a transparent conductive layer and a plurality of perovskite cell units arranged in sequence. The perovskite cell unit comprises an electron transport layer, a perovskite layer and a hole transport layer arranged in sequence. Each perovskite cell unit is in a series connection relationship. The positive electrode of the last perovskite cell unit serves as the positive electrode of the perovskite flexible solar cell. The negative electrode of the first perovskite cell unit serves as the negative electrode of the perovskite flexible solar cell. The lithium-sulfur battery comprises a positive electrode, a negative electrode and a solid electrolyte. The positive electrode is electrically connected with the positive electrode, and the negative electrode is electrically connected with the negative electrode, so as to form a loop. The application can improve the integration, overall efficiency and stability of the self-charging system.

This invention aims to provide a testing device for an air conditioner motherboard. The invention includes an air conditioner motherboard connected to a testing device via a digital potentiometer board. The digital potentiometer board includes a first resistor. The air conditioner motherboard includes an MCU unit and a temperature sensor socket. The MCU unit is connected to the digital potentiometer board via a temperature sensing circuit, which includes a second resistor and a third resistor. The node between the temperature sensor socket and the third resistor is grounded via the second resistor and a first capacitor, respectively. The node between the third resistor and the MCU unit is grounded via the second capacitor. The temperature sensor socket is connected to a 5V voltage and is connected to the first resistor. This invention applies to the technical field of motherboard testing.

The invention discloses a multi-party confidential sorting method for a low-altitude cooperative network, and belongs to the technical field of secure multi-party computing. The invention aims to solve the problems of repeated comparison and overflow in the traditional comparative protocol. According to the invention, based on a threshold encryption system, all participants cooperatively generate a threshold ElGamal public key; the participant constructs a prime number coding vector with the length of 1, 2 and 3 according to private input data of the participant, encrypts the prime number coding vector based on a public key and then sends the prime number coding vector to the participant, the participant multiplies each column to obtain a multiplied vector, and the participant selects the first ciphertext component from the ciphertext vectors according to input of the participant; and then obtaining a plaintext based on threshold decryption, carrying out prime factorization on the plaintext, and obtaining a sorting result output by the participant according to the occurrence frequency of the corresponding prime number of the participant in the plaintext prime factorization.