51results about How to "Easy to build" patented technology

This application discloses a method and electronic device for detecting transmission parameters of through-silicon vias (TSVs), applied in the field of integrated circuit technology. The method includes: determining whether the total length of the TSV to be tested is greater than a preset first length; if so, dividing the TSV into multiple via segments such that the length of each segment is no greater than the first length; if not, treating the TSV as a TSV composed of single-segment vias; for each via segment, obtaining the pad capacitance, via pillar capacitance, anti-pad capacitance, via inductance, and via resistance of the via segment using preset parameter calculation rules, and constructing an equivalent circuit model of the via segment; cascading the equivalent circuit models of each via segment of the TSV to form an equivalent circuit model of the TSV, and performing transmission parameter detection on the TSV. Applying the scheme of this application can effectively determine the transmission parameters of the TSV, improving efficiency and ensuring the accuracy of the scheme.

This application discloses a federated learning method, apparatus, device, storage medium, and computer program, relating to the field of computer technology. The method includes: determining at least one target feature from data features corresponding to a training dataset; using the at least one target feature as the basis for model construction to obtain n candidate decision tree models; determining a target decision tree model from the n candidate decision tree models based on the prediction results of the n candidate decision tree models on training data in the training dataset; sending the target decision tree model to a second computing device, whereby the second computing device fuses at least two decision tree models including the target decision tree model to obtain a federated learning model. Through this method, the first computing device sends a decision tree model to the second computing device in a single transaction while protecting data privacy, making the process of constructing a federated learning model more convenient. This application can be applied to various scenarios such as cloud technology, artificial intelligence, and intelligent transportation.

This invention discloses a high-speed parallel water entry experimental launching device and method for a vehicle, belonging to the field of hydrodynamic experiments. It includes a supporting base, a parallel controller, a parallel launching assembly, and a power unit. The parallel launching assembly is mounted on the supporting base via the parallel controller, and the power unit provides launching power and adjusts the water entry velocity. The parallel launching assembly includes a first launching device and a second launching device arranged side-by-side, enabling parallel launching of two projectiles and adjustment of the launching angle. The parallel controller includes a parallel control mechanism and a spacing adjustment mechanism. The parallel control mechanism ensures the relative parallelism of the first and second launching devices, while the spacing adjustment mechanism adjusts the launching distance between the first and second launching devices. This invention has a simple and practical structure, is easy to assemble, has high reliability and durability, and exhibits good repeatability and safety, providing experimental assurance for studying the hydrodynamic characteristics of structures at the moment of water entry.

This invention discloses a gas diffusion layer with multi-level mass transfer channels, its preparation method, and its application. The gas diffusion layer with multi-level mass transfer channels includes a substrate layer and a microporous layer on the substrate layer; wherein the microporous layer comprises carbon black, hollow porous carbon nanofibers, and optionally a hydrophobic binder. This invention uses hollow porous carbon nanofibers as a novel MPL carbon material to synergistically construct a gas diffusion layer with better water vapor management capabilities in conjunction with carbon black particles. The resulting gas diffusion layer exhibits excellent comprehensive performance; its hollow porous structure provides additional water transport channels, improving water vapor transport capacity, thereby enabling the assembled membrane electrode to have better output performance.

The application discloses a kind of microcavity optical frequency comb ultra-high repetition frequency precision measurement system and method, solve the existing microcavity optical frequency comb repetition frequency measurement system because of facing electronic device frequency bandwidth bottleneck lead to the problem that measurable range is seriously limited, including optical rough measurement unit, comb tooth processing unit, modulation frequency shift unit, reference equalization unit, beam combination beat frequency unit and microwave precision measurement unit;Optical rough measurement unit is used to measure the repetition frequency of the light beam to be measured, and is divided into measurement beam and reference beam;Comb tooth processing unit is used to filter out target comb from measurement beam;Modulation frequency shift unit is used for electro-optic modulation to target comb;Reference equalization unit is used to control the reference comb power of reference beam to obtain better beat frequency detection effect;Beam combination beat frequency unit is used for optical beam combination beat frequency between target comb and reference comb and is divided into two beams;Microwave precision measurement unit is used to detect the beat frequency signal between target comb and reference comb, to realize the precision measurement of repetition frequency.

The utility model belongs to ship automatic rudder system test and simulation technical field provides a kind of steering control simulation equipment, including control box, the side of control box is equipped with bearing plate, the inside of bearing plate is equipped with horizontal screw rod, the side of bearing plate is equipped with the stepping motor of external power supply and screw rod interconnection, sliding member of sliding connection is equipped on screw rod, vertical linkage rod is equipped on sliding member, rudder blade connecting rod is equipped below linkage rod, feedback linkage assembly is equipped between rudder blade connecting rod and linkage rod, feedback linkage assembly is used to change the linear motion of rudder blade connecting rod into circular motion;The automatic rudder simulation device designed in the utility model can simulate the rotating action of rudder blade connecting rod without real rudder and hydraulic servo system, and is low in cost and safe in operation.

This invention relates to the fields of transcription factor engineering and metabolic engineering, and discloses an engineered strain that produces L-isoleucine, its construction method, and its applications. This strain... E. coli K12, MG1655 ( E. coli A1) serves as the host, integrating the subunit of the host factor IHF. ihfβ, ihfα Natural promoter replaced with P trc Strong promoters enable IHF overexpression, resulting in engineered bacteria. E. coli IHF4. This invention also discloses the construction steps of this strain, as well as its application method for L-isoleucine production by inoculating it into a fermentation medium, culturing it at 36-38℃ and 200 r / min for 40-60 h, and adjusting the pH and supplementing sugar. This engineered strain increases the yield of L-isoleucine by 42.11% compared to the starting strain. The construction method is simple and suitable for industrial microbial fermentation production of L-isoleucine.

The utility model relates to the technical field of welding workstation, specifically is a kind of welding workstation man-machine cooperation safety protection device, including welding workstation and protection component, protection component is at least set with one group, and it is set along the operation table outer periphery of welding workstation, protection component includes first vertical pipe, second vertical pipe, lower slide rail and upper slide rail, lower slide rail and upper slide rail are respectively set in the bottom and top between first vertical pipe and second vertical pipe.The setting of protection component provides a set of protection component for welding workstation, so that the sparks generated in the welding process cannot splash on the position required to be protected, while reducing the glare to the eyes of surrounding workers during welding process, and based on flexible winding and pulling, the closure can be quickly opened, which facilitates the operation and cooperation of workers on the welding mechanical arm of the welding workstation.

This invention provides a method and system for directional sound generation from a loudspeaker based on offline simulation and feedforward control, relating to the field of electroacoustic technology. The method includes: based on the feedforward compensation database, in the online implementation phase, performing frequency decomposition on the input audio signal using a digital signal processor and querying the database to obtain compensation parameters corresponding to each frequency component, thereby obtaining a real-time inverse compensation signal; using the real-time inverse compensation signal, synchronously driving the main loudspeaker and auxiliary loudspeaker, causing the compensated sound wave radiated by the auxiliary loudspeaker to destructively interfere with the sound wave behind the main loudspeaker, forming an acoustic quiet zone. This invention combines offline simulation to construct a precise database with online feedforward query for real-time compensation, ensuring accuracy and efficiency throughout the entire process from data foundation to acoustic quiet zone formation.

This invention discloses a noise reduction and stabilization construction device and its construction method for civil engineering road construction. The invention relates to the field of road construction technology and includes a soundproof enclosure. The left side of the outer wall of the soundproof enclosure has an insertion interface, and the right side of the soundproof enclosure is fixedly connected to an insertion plate. The outer wall shape of the insertion plate is consistent with the inner wall shape of the insertion interface, and the positions of the insertion interface and the insertion plate on the soundproof enclosure are correspondingly arranged. Sealing plates are provided on both the left and right sides of the soundproof enclosure. The outer wall of the sealing plate contacts the outer wall of the soundproof enclosure. A bolt connecting plate is fixedly connected to the upper side of the sealing plate, and one side of the bolt connecting plate extends to the upper side of the soundproof enclosure. The outer wall of the bolt connecting plate is fixedly connected to the outer wall of the soundproof enclosure by bolts. This invention can reduce the vibration of the ground caused by the impact of construction machinery by using a water-filled bag that adheres to the ground, thereby reducing the noise source. It has the characteristics of strong practicality and is beneficial for reducing road construction noise.

The utility model relates to kitchen utensil technical field discloses an air inlet box body and drying sink, air inlet box body is installed on the tank body of drying sink, air inlet box body includes bottom shell and top cap, and the sealed connection between bottom shell and tank body, top cap covers are established on bottom shell, and with bottom shell detachable connection, the waterproof baffle of periphery of bottom shell is provided with, top cap covers are established on bottom shell, and the waterproof baffle can be inserted into top cap. The air inlet box body includes bottom shell and top cap, and the sealed connection between bottom shell and tank body, avoid the water between bottom shell and tank body, top cap covers are established on bottom shell, and with bottom shell detachable connection, it is convenient to maintain through dismounting top cap, the waterproof baffle of periphery of bottom shell is provided with, when top cap covers are established on bottom shell, the waterproof baffle can be inserted into top cap, through waterproof baffle, it can prevent the water between bottom shell and top cap, the air inlet box body has played good waterproof effect, prolongs the service life of air inlet box body and drying sink, avoids the bacteria and mildew, and it is convenient to create healthy kitchen.

This invention belongs to the field of solar water evaporation technology, and discloses a high-efficiency solar water evaporator, its preparation method, and its application. The preparation method includes the following steps: (1) Clean and dry coconut fibers, take multiple coconut fibers and weave them into a rope, and then cut them into coconut fiber ropes of the same length; (2) Embed the above-mentioned coconut fiber ropes of the same length into a sponge in an m×n array, wherein the lower end of the coconut fiber rope is flush with the bottom surface of the sponge, while its upper end protrudes from the top surface of the sponge by a certain height; (3) Immerse the part of the above-mentioned coconut fiber rope array protruding from the top surface of the sponge in a sodium alginate solution containing carbon black for surface coating treatment, and then take it out and air dry naturally to obtain a high-efficiency solar water evaporator based on a coconut fiber array. This invention has the characteristics of wide material sources, low cost, simple evaporator construction method, and high water evaporation rate, and has better prospects for large-scale preparation and commercial application.

The application discloses a servo cut-off valve group, which comprises a first valve body and a second valve body integrated on a valve seat. Both the valve bodies are provided with valve cavities, and the valve cavities are internally provided with valve spools driven by a servo motor through a screw rod. The valve bodies are provided with outer ring channels communicated with inlet and outlet of the valve seat on the side surfaces, the outer ring channels are communicated with the valve cavities through a plurality of uniformly distributed lateral flow channels, and the inner walls of the valve cavities are further provided with inner ring channels. The longitudinal flow channels at the bottoms of the two valve cavities are communicated with each other through channels in the valve seat. When the two valve spools synchronously rise above the lateral flow channels, fluid can sequentially pass through the flow channels, and the valve is opened; when the two valve spools synchronously descend to completely cover the lateral flow channels, the valve is closed. The two valve cavities are communicated at the bottoms to form a pressure balance cavity, so that the valve spools are hardly subjected to axial thrust when the valve is closed, and high pressure is converted into sealing force in the radial direction of the valve spools, thereby fundamentally solving the high pressure leakage problem of traditional cut-off valves, and the application is especially suitable for high pressure equipment such as filter presses.

The utility model is suitable for hoist technical field provides a kind of hoist block installation pedestal, including bottom plate, the top of bottom plate is equipped with top plate, the top surface of bottom plate and the bottom surface of top plate are symmetrically equipped with connecting piece, the top surface of top plate is equipped with mounting groove, the inside of mounting groove is embedded with installation strip, the top of top plate is equipped with hoist body, the bottom surface of hoist body is symmetrically equipped with I-steel, the bottom surface of I-steel is welded and is connected with fixed plate.This scheme is assembled by bottom plate, top plate and connecting piece, can conveniently and quickly complete the construction of hoist installation pedestal, compared with traditional integral welding or casting mode, greatly reduce the difficulty of manufacture and repair, also reduce cost simultaneously;Hoist installation pedestal can be split into smaller components during transportation, convenient to carry and transport, need not large hoisting equipment to operate, reduce construction difficulty and cost.

The present application relates to a kind of meat product colorant based on double enzyme cascade reaction and coloration method and application, belong to meat science and technology field.The meat product colorant is composed of recombinant glucose dehydrogenase and one oxygen fusion enzyme NOS-YkuN-YumC of producing nitric oxide.The present application is by constructing the nicotinamide adenine dinucleotide phosphate (NADPH) regeneration system based on glucose dehydrogenase in recombinant bacillus subtilis, realize the continuous supply of key cofactor NADPH, to significantly enhance the catalytic activity of one oxygen fusion enzyme NOS-YkuN-YumC of producing nitric oxide under low temperature condition.It is applied to meat product, and the produced one oxygen is combined with myoglobin efficiently, generates nitrosylmyoglobin, so that meat product can obtain ideal red color even in low temperature processing with sodium nitrite treatment.The present application provides efficient and feasible solution for replacing nitrite coloration and improving meat product safety.

This invention discloses a layout structure, design method, and system-on-a-chip for a clock buffer module. The layout structure of the clock buffer module includes: a standard buffer unit; multiple functional element units, including at least one pre-embedded coupling capacitor unit and at least one pre-embedded charge discharge unit; multiple functional element units are integrated in the layout in a manner surrounding the standard buffer unit; signal pins and power pins are located on different preset high-layer metal layers, and the signal connection terminals and power connection terminals of the standard buffer unit are electrically connected to the signal pins and power pins respectively through internal connection holes. The technical solution provided by this invention improves upon the uncontrollable problems such as wiring, voltage drop, and antenna effects caused by directly using high-drive-force devices provided in the process library, while also avoiding the dependence on customized high-drive-force devices for high-speed, long-distance, low-latency applications.

This invention relates to the field of solid waste treatment technology, and in particular to a method for multi-stage countercurrent water washing and dechlorination of waste incineration fly ash with a low liquid-to-solid ratio. This invention combines low liquid-to-solid ratio water washing with countercurrent water washing, and utilizes a rotary vibrator to achieve effective dechlorination of waste incineration fly ash, ultimately obtaining water-washed fly ash with a chlorine content of less than 1%. Compared with existing technologies, this invention organically combines low liquid-to-solid ratio water washing, countercurrent water washing, and a rotary vibrator, balancing dechlorination efficiency and water resource utilization. The process is stable and reliable, simple to operate, and has low energy consumption. The treated fly ash meets the requirements for subsequent resource utilization, providing an efficient and feasible new solution for the harmless treatment and resource recovery of waste incineration fly ash.

The application provides a dipole double-layer casing well imaging method based on an Inception module, forward modeling is performed on a real double-layer casing well model, a dipole excitation mode is adopted, different sizes of double-layer casing well array logging signals are obtained according to the forward model, neural network parameters based on the Inception module are set, and the obtained characteristic signal array is input into a neural network containing the Inception module for training and verification, the training result of the neural network is saved, and the network structure of the neural network containing the Inception module and the model trained by the optimal parameters are used for carrying out longitudinal wave and transverse wave slowness inversion and imaging on the double-layer casing well. The application establishes the relationship between the characteristic signal and the real longitudinal wave and transverse wave slowness graph of the dipole double-layer casing by using the neural network containing the Inception module, can realize fast and high-resolution imaging, and effectively improves the robustness of the neural network.

The utility model discloses a building wood bamboo block combination system of quick assembly, including terminal block, base block, cross block, reinforcing bar piece, ingot pin, bottom beam and roof beam, terminal block, base block and cross block are three kinds of structural forms of wood bamboo block combination, and terminal block, base block, cross block are installed between the bottom beam and roof beam of wall through reinforcing bar piece and ingot pin, and the ingot pin is used for positioning to install wall, the utility model discloses three kinds of blocks of simple structure, realize the lapping of different type wall, avoid the problem of road transportation limit, reduce transportation cost, avoid large component installation error simultaneously, improve the precision of lapping, can according to the change of building use requirement, quick disassembly and reinstallation, adopt large component module installation, when partial damage, can individually dismount and replace module, need not to remove integral structure.

The invention belongs to the technical field of material wear and fatigue life prediction, and discloses a material macro / micro fatigue fracture mechanics-based wear test device, which comprises a bottom plate (1) and a guide rail bracket (2) mounted on the bottom plate (1), a vertical guide rail (3) and a sliding block (4) which slides up and down along the guide rail (3) are arranged on the guide rail frame (2); a sliding block (4) is arranged on the base (1), a cantilever supporting column (6) is fixed on the sliding block (4), a loading device frame (5) is arranged on the cantilever supporting column (6), a loading and mechanical measurement integrated device (7) is assembled on the loading device frame (5), and a loading head (8) is arranged at the front end of the loading and mechanical measurement integrated device (7). The method is based on macroscopic and microscopic fatigue fracture mechanical models of materials, has a deep theoretical basis and wide applicability, and can be suitable for predicting the wear life of different organic materials.

The utility model discloses a kind of test device of PTC two-in-one compressor operating state, to test the operating state of PTC two-in-one compressor. Including compressor, further include evaporator assembly, condenser assembly, the air outlet of compressor is connected the air inlet of condenser assembly through refrigerant pipeline, the air outlet of condenser assembly is connected the air inlet of evaporator assembly through refrigerant pipeline, the air outlet of evaporator assembly is connected the air inlet of compressor through refrigerant pipeline, form refrigerant circuit;Further include water tank assembly, flowmeter, circulating water pump, condenser assembly and water tank assembly heat exchange, the outlet of circulating water pump is connected the import of water tank assembly through cooling liquid pipeline, the outlet of water tank assembly is connected compressor PTC board import through cooling liquid pipeline, compressor PTC board export is sequentially connected flowmeter, circulating water pump import through cooling liquid pipeline, form cooling liquid circulation loop.

The application discloses a kind of micro-nano robots magnetic gradient force calculation method and system under three synchronous rotating magnetic field.The method comprises the following steps: obtaining the position parameters of three synchronous rotating permanent magnets, the magnetic moment size of permanent magnet, common rotating phase, the position parameters of the space point to be calculated and the magnetic moment size of micro-nano robot;Based on magnetic dipole model, the magnetic field generated by three permanent magnets at the space point to be calculated is calculated and superimposed to obtain the total magnetic field;According to the total magnetic field, the total magnetic field direction unit vector is constructed, and the magnetic moment direction of micro-nano robot is kept consistent with the total magnetic field direction;Field matrix, magnetic gradient matrix and gradient force compact matrix are constructed, and the magnetic gradient force vector and its module length suffered by micro-nano robot at the space point to be calculated are calculated.The application can quickly complete the magnetic gradient force calculation under the action of three synchronous rotating magnetic field, and is suitable for trajectory planning, closed-loop control and safety evaluation of magnetic driving micro-nano robot.

This utility model provides a novel tunnel escape pipeline device, relating to the technical field of escape pipeline devices. It includes a pipeline body, clamping blocks disposed on the outer side of the pipeline body, support members disposed on the outer sides of both ends of the pipeline body, a clamping plate disposed on the outer side of the middle portion of the pipeline body, and clamping components disposed below the middle portion of the pipeline body. The entire operation only requires activating a telescopic cylinder to complete the linkage clamping and self-locking, eliminating the need for complex tools. This simplifies the pipeline assembly process, facilitating the rapid construction of a passage in emergency escape scenarios. Furthermore, the robust clamping and self-locking design ensures the structural safety of the pipeline during escape, reducing the risk of collapse and detachment.

This application relates to the field of medical device technology, specifically to a dual-mode endoscope, a handheld dual-mode endoscope, and a robotic dual-mode endoscope. The dual-mode endoscope is configured to acquire stereoscopic visual images and corresponding depth information of tissue in a target area. The dual-mode endoscope includes a lens section equipped with a depth sensor and at least two image sensors. The at least two image sensors are configured to acquire stereoscopic visual images of the tissue, including white light images, fluorescence images, or a fusion of white and fluorescence images; the depth information includes a first depth, and the depth sensor is configured to acquire the first depth of the tissue. A three-dimensional view of the surgical field can be constructed by combining the first depth and the stereoscopic visual images to display the three-dimensional spatial structure of the surgical field in a three-dimensional and accurate manner, reducing accidental contact of surgical instruments with other parts of the surgical area and improving the safety and accuracy of the surgery. Different types of stereoscopic visual images can also be selected according to different surgical needs.

The application discloses a device and a method for correcting visual errors of camera observation of particle sedimentation process, comprising an experimental setting module, an image acquisition module, a data processing module, a size correction module and the like, through the experimental setting module and the image acquisition module, only a ruler needs to be set and an image is shot, and the error correction can be completed by combining simple analysis of the data processing module, without complex equipment or tedious operation, so that the experimental implementation difficulty and the requirement for professional skills of the operator are significantly reduced; moreover, the whole device is easy to build, low in cost, and common equipment of a ruler and a camera is used, expensive instruments such as high-precision optical sensors are avoided, resource utilization is further optimized in combination with a modular design, experimental cost is reduced, and the device has higher economy and popularization and application value.

The application relates to a water retaining structure for flood control of a pumped storage power station and relates to the technical field of flood control facilities, which comprises a baffle, the inside of the baffle is provided with an extension mechanism, the outside of the baffle is provided with a corner flood retaining mechanism, the inside of the baffle is provided with a quick-release mechanism, the extension mechanism comprises a supporting plate one, the inside of the baffle is fixedly connected with an air cylinder, the driving end of the air cylinder is fixedly connected with a transmission column, the inside of the baffle is fixedly connected with a supporting plate two, the inside of the supporting plate two is rotationally connected with a transmission wheel, the inside of the baffle is fixedly connected with an up-down moving assembly. The application has the advantages that the height of the baffle can be flexibly adjusted through air cylinder driving, the lifting range of the baffle can be accurately controlled according to the actual water level of flood, different magnitude floods can be effectively coped with, linear motion is converted into rotary motion and then into linear lifting, and reliable flood control guarantee is provided for the pumped storage power station.

Due to imperfections in calibration devices, some testing systems cannot fully simulate all environmental conditions, such as temperature and pressure, thus affecting the accuracy of test results. Furthermore, inaccurate and inconvenient temperature and pressure control, coupled with the inability to maintain stable temperature and pressure, impacts sensor calibration efficiency. Traditional testing systems require additional openings in the vacuum drying oven, which can damage the cavity and pose a risk of gas leakage. This invention designs a device for gas sensor calibration. This device can accurately simulate the required temperature and pressure environment, offering advantages such as good airtightness, strong thermal insulation, and simple operation, and can meet the calibration needs of various sensors.

The invention belongs to the technical field of optical microscopic imaging, and particularly relates to a single objective lens light sheet microscopic imaging system, which comprises an exciting light modulation light path, a fluorescence detection light path and a microscopic imaging system, and is characterized in that the exciting light modulation light path is used for generating an illumination light sheet to excite fluorescence, and specifically comprises a laser, a beam expanding collimating lens group, a modulator, a scanning system and the like. The microscopic imaging system is used for transmitting an illumination light sheet and collecting light emitted by a sample, and comprises a dichroscope, a galvanometer module, an image rotating system, a tubular lens, an objective lens and the like. And the fluorescence detection light path comprises a relay lens group, a modulation element, a band-pass optical filter, a camera and the like. According to the invention, tasks of light sheet illumination and fluorescence collection in a traditional double-objective light sheet microscope are completed through a single objective, a remote focusing system or a micro-mirror reflection structure commonly used in an existing single-objective light sheet microscope does not need to be used, and a light sheet orthogonal to a focal plane is adopted for illumination. Compared with the existing light sheet microscope technology, the method has higher usability and flexibility, allows free switching of objective lenses under the condition of not changing other light paths, is compatible with any objective lens and various samples, does not need any software processing including deskewing in the principle of an obtained image, can directly display and use an original image, and is high in practicability. The system has higher resolution and is close to ideal isotropic imaging when various objective lenses are used for imaging.

A digital closed-loop simulator for satellite attitude orbit control system test and its construction method. It belongs to the field of aerospace technology. The existing two physical simulation test methods are optimized and improved. Only the AOCS software function is tested, and there is no need to access the real attitude control unit. This method is convenient for rapid iteration and upgrading of AOCS software version, improves the satellite development efficiency, reduces the production cycle, and is conducive to the serialization and mass production of satellites. In addition, during the on-orbit operation of the satellite, the single machine (flywheel, magnetometer, etc.) may fail, and this system can also be used to verify the processing of the AOCS software for the single machine failure mode.