28results about How to "Increase loss" patented technology

Embodiments of the present disclosure disclose a distributed resource scheduling method, device, equipment and computer readable medium. A specific implementation of the method comprises: in response to receiving resource scheduling application information, obtaining multi-modal application correlation information; searching for differentiated resource matching information to obtain target resource matching information; performing structural analysis on the multi-modal application correlation information to obtain structured application data; performing multi-category anomaly identification processing on the structured application data to obtain anomaly identification data; performing differentiated resource condition matching processing on the anomaly identification data to obtain matching condition information; obtaining hardware state parameters; determining a target resource scheduling device; performing hierarchical collaborative resource scheduling processing on the anomaly identification data and the matching condition information to generate resource scheduling information and control the target resource scheduling device to perform a scheduling operation corresponding to the resource scheduling information. This implementation reduces resource waste and execution failure of resource scheduling.

The application discloses a single-phase full-bridge power module, comprising a substrate, a base island located on a first surface of the substrate, the base island comprising a first base island, a second base island and a third base island, a first power device, a second power device, a third power device and a fourth power device, the first power device and the second power device forming a first half-bridge unit, the third power device and the fourth power device forming a second half-bridge unit, the first half-bridge unit and the second half-bridge unit forming a single-phase full-bridge unit, the first power device and the third power device being located on the first base island, the second power device being located on the second base island, the fourth power device being located on the third base island, and the first base island semi-enclosing the second base island and the third base island. The single-phase full-bridge power module provided by the application adopts a reasonable layout to package power devices, reduces parasitic parameters, and improves the dynamic performance and loss of a circuit.

The present application relates to a kind of damping mechanism and grinding polishing machine tool, damping mechanism includes fixed seat, connecting disc and at least two piston cylinders, piston cylinder includes piston rod, fixed seat is used to connect, at least two piston cylinders are arranged in pairs on connecting disc, closed fluid circuit is arranged between each pair of piston cylinders, fixed seat is movably connected with connecting disc by piston cylinder, piston cylinder is arranged to damp the movement of fixed seat.Grounding, grinding disc will be lifted by the part of workpiece thickness, will produce floating and drive fixed seat floating in rotation process, piston cylinder is provided with throttle orifice at the connection of the side of fluid circuit away from fixed seat, due to the throttle effect of small hole, pressure difference can be generated on both sides of throttle orifice, and then pressure difference is generated between each pair of piston cylinders, so that the part of workpiece thickness bears larger pressure from grinding disc.Each two piston cylinders are arranged in pairs on connecting disc, and pressure is applied to each part of workpiece, so as to improve grinding efficiency.

The application belongs to the technical field of tunnel soil body reinforcement, and particularly discloses a device and method for reinforcing soil body of a tunnel starting well portal by injecting microbial slurry, which comprises a storage component, a transmission component and an injection component, the storage component comprises two constant-temperature boxes, and the two constant-temperature boxes are respectively used for placing bacterial liquid and cementing liquid; the transmission component comprises a multi-connection micro high-pressure pump, and two independent liquid channels are arranged in the pump; the injection component comprises a grouting guide pipe and a rotating grouting head, the grouting guide pipe comprises two hollow semi-cylindrical pipes, and the longitudinal straight faces of the two hollow semi-cylindrical pipes are attached together to form a cylinder with two independent longitudinal cavities; the two independent longitudinal cavities are respectively connected with the two constant-temperature boxes through different liquid channels; a plurality of spray holes are longitudinally and uniformly arranged on the arc faces of the hollow semi-cylindrical pipes; and the rotating grouting head is used for driving the grouting guide pipe to rotate. The application can reduce the internal loose problem of the soil body reinforced by the microorganism, and improve the reinforcement effect of the soil body of the tunnel starting well portal.

This invention relates to the field of inverter technology, and particularly to a heterogeneous power device hybrid inverter and its space vector modulation method. The heterogeneous power device hybrid inverter provided in this invention includes a first constant current source, a second constant current source, a main power inverter module, a secondary power inverter module, and a capacitive reactance module. The first constant current source is connected to the main power inverter module to provide current to the main power inverter module. The main power inverter module includes multiple silicon-based insulated-gate bipolar transistors (SBMTs) as main switching transistors, and the main power inverter module is connected to the capacitive reactance module. The second constant current source is connected to the secondary power inverter module to provide current to the secondary power inverter module. The secondary power inverter module includes multiple silicon carbide-based metal-oxide-semiconductor field-effect transistors (MOSFETs) as secondary switching transistors, and the secondary power inverter module is connected to the capacitive reactance module. The heterogeneous power device hybrid inverter and its space vector modulation method provided by this invention can balance high inverter frequency and low switching losses.

This invention provides a new energy core based on wide-width amorphous alloy strip and its preparation method, comprising the following steps: winding the amorphous alloy strip based on a tension-wound diameter linear decreasing function to form a single-frame core; splicing multiple single-frame cores along the magnetic circuit direction to form a core body; and annealing the obtained core body under a protective atmosphere to obtain a new energy core. This invention solves the key technical problems of winding, splicing, and annealing of wide-width amorphous alloy strip in the preparation of high-power new energy cores, and realizes the preparation of large-size amorphous alloy cores with low loss, high saturation magnetic induction intensity, and high structural stability.

The application discloses a dielectric waveguide resonator and a multimode dielectric waveguide resonator, which comprises a dielectric resonant cavity, the dielectric resonant cavity comprises a dielectric body and a metal plating layer wrapping an outer surface of the dielectric body; a metal loading interface is arranged in the dielectric body and is connected with the metal plating layer; the metal loading interface intersects with an intrinsic electric field direction of the dielectric resonant cavity to reduce a main mode frequency of the dielectric resonant cavity. Embodiments of the application provide a dielectric waveguide resonator and a multimode dielectric waveguide resonator, by adding a metal loading interface in a dielectric body of a dielectric waveguide resonator, the size, frequency and unloaded Q value of the dielectric waveguide resonator are kept unchanged, high-order mode harmonics are pushed away, the performance of a low-pass filter is improved, and loss is improved.

The application discloses a quad-rotor formation obstacle avoidance control method based on an improved DDPG algorithm, and belongs to the technical field of unmanned aerial vehicle formation control. The method adopts an improved DDPG reinforcement learning algorithm to plan an obstacle avoidance path of the quad-rotor. When the improved DDPG reinforcement learning algorithm is executed, the priority weight of each quadruple experience in the experience replay pool is initialized. After the quadruple experience in the experience replay pool is sampled and trained, the priority weight of each quadruple experience is recalculated based on a TD error, and a Sum_Tree structure is updated. The method effectively alleviates the training instability caused by hyperparameter sensitivity, the misleading of policy updating caused by overestimation of Q values, and the problem that key experiences are not sufficiently learned, accelerates the convergence speed of the quad-rotor formation obstacle avoidance training, and improves the obstacle avoidance effect.

This application discloses a sludge dewatering material spreading device and method, belonging to the field of sludge treatment technology. The sludge dewatering material spreading device includes a spreading bed, a filter press chamber, and a filter cloth frame. The filter press chamber is equipped with a filter basket and a tray assembly. The filter basket opening is equipped with a laser rangefinder. The tray assembly includes a tray and a lifting mechanism, which drives the tray to move up and down within the filter press chamber. The filter cloth frame provides filter cloth, and the spreading bed lays filter cloth and sludge within the filter press chamber. The tray assembly enables tray lifting, and the spreading bed lays filter cloth and sludge within the filter press chamber, with the sludge spread between the filter cloths for subsequent filtration. The laser rangefinder at the filter basket opening accurately measures the distance between the sludge material and the basket opening, allowing for precise and digitized measurement of the tray's lowering or raising height, thus achieving dynamic matching between the spreading material and the tray's descent.

This invention discloses a method for jointly regulating water resource utilization of desert riverbank vegetation based on ecological gate groups. The method includes: obtaining vegetation change patterns using a fitting method based on the kNDVI vegetation index; dividing the vegetation in the desert watershed into three vegetation distribution zones based on the vegetation change patterns and vegetation coverage; acquiring all ecological gates in the desert watershed and dividing them into multiple ecological gate groups; determining the weights of the three vegetation distribution zones for ecological protection objectives using the analytic hierarchy process (AHP), and calculating the comprehensive score of the regulation zone based on the proportion of ecological functional zones in the regulation zone; solving the joint model of the ecological gate groups using a single-objective genetic algorithm to obtain the ecological water demand and ecological water supply of each control zone when the total water shortage of all ecological gate groups is minimized; dividing the ecological gate groups into five levels based on the comprehensive score, and then activating the ecological gate groups to irrigate the irrigation area according to the ecological gate group level, ecological water demand, and the importance of the irrigation area.

This application relates to the field of semiconductor optoelectronic device technology and discloses a tilted waveguide semiconductor laser with a composite microstructure. The semiconductor laser includes a tilted waveguide, and the base-side mode forms a zigzag resonant path within the tilted waveguide cavity. This ensures high end-face coupling efficiency of the base-side mode within the tilted waveguide semiconductor laser at different etching depths. An internal microstructure is disposed in the region within the tilted waveguide cavity that does not overlap with the zigzag resonant path; external microstructures are disposed in the regions on both sides of the tilted waveguide that overlap with the zigzag resonant path. Both the internal and external microstructures are used to increase the loss of higher-order side modes, improving the lateral beam quality, and have broad application prospects in fields such as pump sources and space communication.

The utility model provides a kind of key light guide cover and light guide key assembly, key light guide cover includes base body, pressure-bearing body and support body, support body is fixedly connected between base body and pressure-bearing body, and the relative height between the front of pressure-bearing body and the front of base body is greater than zero, the front of pressure-bearing body includes light transmission area and backlight area, and the thickness of backlight area is greater than the thickness of light transmission area.Light guide key assembly includes aforementioned key light guide cover and light source.The utility model discloses technical scheme, because the thickness of backlight area is greater than the thickness of light transmission area, the light propagation path of light source generated light is shorter in light transmission area, and the intensity and brightness loss of light are lower, so as to enhance light transmission area brightness effect, and the light propagation path of light source generated light is longer in backlight area, so that the intensity and brightness of reflected light are weakened, the interference effect of reflected light and light propagation in light transmission area is reduced, light is reduced, so that user observes correct character or pattern from light transmission area, and misoperation to key is avoided.

This disclosure relates to the technical field of AC power input to DC power output conversion, specifically providing a totem-pole power factor correction circuit, a power supply system, a compressor, and an air conditioning device. The totem-pole power factor correction circuit includes a rectifier module, an inductor module, a capacitor module, a switch module, and a control module. The capacitor module is connected in parallel with the output of the rectifier module. The capacitor module includes a series branch and a parallel branch. The series branch includes a first capacitor and a second capacitor connected in series, and the parallel branch includes at least one third capacitor connected in parallel across the two ends of the series branch. This disclosure, by using a parallel third capacitor, effectively suppresses bus voltage ripple, fundamentally enhancing the stability and reliability of the circuit under dynamic load changes. It solves the industry pain point of DC bus ripple in totem-pole PFC circuits, achieving a balance of "high efficiency, low ripple, and low cost."

The application provides a high beam module and a vehicle lamp. The high beam module comprises a light source for emitting light; a high beam lens arranged on the light emitting side of the light source, the high beam lens being an integral structure, the high beam lens comprising a light inlet surface, a first total reflection surface, a second total reflection surface, a third total reflection surface and a light outlet surface, the second total reflection surface and the third total reflection surface being oppositely arranged along a first direction, the light outlet surface being located on one side of the third total reflection surface along a second direction, the light emitted by the light source being projected to the first total reflection surface through the light inlet surface, the parallel light being formed after being reflected by the first total reflection surface, the parallel light being reflected by the second total reflection surface and the third total reflection surface in sequence, and the parallel light being emitted by the light outlet surface to form a high beam light pattern; the light outlet surface comprises a plurality of sub-light outlet surfaces arranged in sequence along a third direction, and the distance between the root of each sub-light outlet surface and the light source along the second direction gradually increases along the third direction. The application can improve the light efficiency of the high beam module while ensuring the narrow opening size.

This application discloses a soluble microneedle composition of a GLP-1R agonist and its preparation method, belonging to the field of biomedical technology. It includes a needle body material and a base material. The needle body material contains a small molecule GLP-1R agonist, a penetration enhancer, and a soluble polymeric backbone material, and may further include pH adjusters, humectants, and stabilizers. The base material is composed of polylactic acid, polylactic acid-glycolic acid copolymer, cross-linked polyhyaluronic acid, cross-linked gelatin, polyvinyl alcohol, polyvinylpyrrolidone, polyvinylpyrrolidone-vinyl acetate copolymer, N-(2-hydroxypropyl)methacrylamide polymer, or combinations thereof. Through injection, centrifugation, and drying, an integrated microneedle structure with mechanical strength and rapid dissolution is formed. It can pierce the stratum corneum of the skin to form microchannels and rapidly dissolve and release oxaliplatin subcutaneously, achieving transdermal delivery, effectively reducing gastrointestinal exposure and first-pass metabolism, and improving drug utilization and medication adherence.

This invention proposes a long-tail federated learning method and apparatus based on gradient cleanup and residual learning. The method includes: the server selecting clients and distributing global parameters; each client performing local training based on the global parameters to obtain updated local shared parameters, which are then uploaded to the server. During training, the task gradient and the balanced alignment gradient are calculated, and the task gradient is cleaned by projection to remove components opposite to the balanced alignment gradient, resulting in a cleaned gradient. The server aggregates the local shared parameters uploaded by each client to obtain global shared parameters and determines whether the current number of communication rounds has reached a preset limit. If so, the global shared parameters are distributed to all clients for personalized training to obtain client-specific models. During personalized training on each client, global branches and personalized branches are used to improve the long-tail category recognition rate.

This invention provides a soft magnetic powder that can improve core loss regardless of the composition of the soft magnetic metal particles. In the soft magnetic powder of this invention, the relationship between the average cumulative frequency of the number of particles from the first to the fourth particle group and the average area envelope of each particle group is depicted in an imaginary two-dimensional coordinate system. The depicted data is linearly approximated using the least squares method. When the slope of the resulting approximate straight line is set as my, the absolute value of my, |my|, is between 0.005 and 0.500.

This utility model discloses an optical encapsulation cover structure for a laser diode, including an encapsulation cover body. A mounting hole is formed at the top of the encapsulation cover body, and a sealing mechanism is installed inside the mounting hole. Extension blocks are fixedly connected to all four sides of the surface of the encapsulation cover body, and a positioning mechanism is fixedly connected to the bottom of each extension block. The sealing mechanism includes a light-transmitting lens installed inside the mounting hole. In this optical encapsulation cover structure for a laser diode, the surface of the light-transmitting lens is covered with an annular fluororubber, and a support spring is installed inside the annular fluororubber. The elastic potential energy provided by the support spring firmly adheres the annular fluororubber to the external connection structure, thereby improving the sealing performance of the light-transmitting lens connection and preventing air leakage and water seepage at the connection between the light-transmitting lens and the encapsulation cover body due to poor sealing performance.

This invention relates to a ceramic fiber roll paper flame-retardant sound-absorbing structure and its preparation method, belonging to the field of sound absorption and noise reduction technology. The ceramic fiber roll paper flame-retardant sound-absorbing structure includes wide ceramic fiber strips and narrow ceramic fiber paper strips, which are stacked and rolled into several layers in a spiral shape, with air gaps formed between adjacent wide and narrow ceramic fiber paper strips. The preparation method includes the following steps: cutting the ceramic fiber paper into two types of strips, wide and narrow ceramic fiber paper strips; attaching the narrow ceramic fiber paper strips to the bottom of the wide ceramic fiber strips to form a strip that is thicker on one side and thinner on the other; starting from one end, rolling is performed, with the thicker side of the wide ceramic fiber strip tightly attached, until the entire strip is rolled into a spiral shape. Through the rational design of the structure, utilizing the interplay between the gaps formed by the rolling of the ceramic fiber paper and the pores of the material itself, high-performance sound absorption is achieved, while also giving the structure fire-resistant and heat-resistant properties.

This utility model discloses a baffle device for preventing slurry splashing, relating to the field of baffle technology. The utility model includes a baffle body and an adjusting plate distributed on one side of the baffle body; it also includes: a first spring fixedly connected to the inner side of one end of the adjusting plate, and a locking rod fixedly connected to the top of the first spring; a first auxiliary sliding plate sleeved on the outer side of one end of the locking rod; a locking hole opened on one side of the top of the baffle body; a retraction groove opened on the inner side of one end of the baffle body, and a second spring fixedly connected to the inner side of the retraction groove; and a positioning rod fixedly connected to the other end of the second spring. Through the structure of the baffle body, adjusting plate, locking rod, and positioning rod, this utility model allows for convenient adjustment of the adjusting plate angle according to actual usage needs, thereby facilitating the adjustment of the adjusting plate to a suitable angle, improving the baffle's anti-splashing effect, and resulting in higher overall practicality and better anti-splashing performance.

This utility model relates to the field of circuit equipment technology and discloses a busbar copper bus structure for improving parasitic inductance. It includes an improved busbar copper bus and a non-improved busbar copper bus. The improved busbar copper bus has a copper busbar substrate in the middle, a bent portion fixedly connected to the top of the substrate, a connecting portion fixedly connected to the top of the bent portion, and wiring extension plates fixedly connected to the lower sides of both sides of the substrate. A bent plate is fixedly connected to the other end of each wiring extension plate, and a wiring plate is fixedly connected to the other end of each bent plate. This busbar copper bus structure for improving parasitic inductance has a short distance of 17.5mm from the positive terminal of the positive busbar copper bus to the positive capacitor terminal, resulting in a shorter current path and better overall performance. It achieves the following technical effects: 1. Reduced parasitic inductance; 2. Improved dynamic response; 3. Optimized current sharing and thermal performance; 4. Suppression of electromagnetic interference (EMI); 5. Maximized capacitor efficiency.

This invention discloses a distributed LC resonant network Ku-band on-chip tunable low-pass filter. The filter includes an RF signal entering from port 1, flowing sequentially through five high-impedance microstrip lines. These five transmission lines are equivalent to five series inductors at high frequencies. At the nodes of adjacent microstrip lines, four high-impedance microstrip lines and four sets of capacitor switch arrays are connected in parallel. Each high-impedance microstrip line with a series capacitor switch array forms a parallel resonant circuit to ground. Two low-impedance open-circuit microstrip lines are connected in parallel at the input and output ports, respectively. The parasitic capacitance generated at high frequencies is used for impedance matching of the filter. The overall topology is equivalent to an eleventh-order Chebyshev low-pass filter. Compared to existing tunable on-chip low-pass filters, this invention's low-pass filter achieves adjustable cutoff frequency across the entire Ku-band, providing a wide tuning range while ensuring excellent overall performance such as high frequency selectivity, low loss, sufficient out-of-band rejection, and miniaturization.

The application provides a circulating water pump power supply system and an aluminum oxide production system. It relates to the technical field of compressor circulating water pump power supply. The circulating water pump power supply system comprises a first power supply, a second power supply, a power supply switch and a power supply starting switch. The first power supply is electrically connected with the first end of the power supply switch. The first power supply is used for supplying power to the circulating water pump when the first end is in a conduction state. The second power supply is electrically connected with the second end of the power supply switch through the power supply starting switch. The second power supply is used for supplying power to the circulating water pump when the second end and the power supply starting switch are both in a conduction state. The power supply switch is used for making the second end conductive when the first end is disconnected. The continuity and stability of the circulating water pump power supply are ensured. The risk of overheating damage of the compressor due to lack of cooling water is avoided, which seriously affects the production continuity and the service life of the equipment. The operation and maintenance cost and the loss caused by shutdown are avoided.

This utility model relates to the field of industrial waste liquid recycling technology, specifically an acid and alkali recovery and recycling device for mold washing in a glove production line. It includes a tank, which contains a liquid storage tank with a floating top cover and an exhaust assembly on the top surface. This utility model, by setting baffles to reduce liquid flow at the bottom and facilitate impurity settling, and by using a flushing assembly and a slag discharge pipe to facilitate cleaning of the storage tank; by setting a floating cover to cover the top surface of the waste liquid, it can reduce the volatilization and evaporation of substances in the liquid, reduce chemical loss, and allow for direct observation of the liquid level; the cover adopts a modular design and uses magnetic connection, allowing for adaptation to different tank sizes and liquid level fluctuations by increasing or decreasing the number of covers; by setting a negative pressure assembly, it can remove waste gas evaporated or volatilized from the uncovered liquid surface, avoiding environmental pollution.

This invention belongs to the field of electromagnetic wave absorbing materials technology, specifically relating to a nickel-boron-doped cobalt-based layered carbon absorbing material and its preparation method. This invention utilizes a cobalt-based boron imidazole precursor framework as a template, and forms a two-dimensional layered layered double hydroxide (LDH) through a chemical oxidation etching process using nickel ions. This LDH is then subjected to high-temperature reduction to obtain the nickel-boron-doped cobalt-based layered carbon material. This material leverages the unique properties of two-dimensional materials to achieve high impedance matching, allowing electromagnetic waves to enter the absorber at a significant rate. Furthermore, the material's excellent dielectric polarization and magnetic coupling attenuate the electromagnetic waves entering the absorber. The material achieves a minimum reflection loss of -60.1 dB and a maximum effective absorption bandwidth of 6.24 GHz, giving it excellent electromagnetic wave absorption capabilities. The preparation method of this invention is simple and easy to mass-produce.

The utility model relates to a rotor structure for a motor, which is provided with a rotor iron core, the rotor iron core comprises first punching sheets (1) and second punching sheets (2), the first punching sheets (1) are located at two axial ends of the rotor iron core, the second punching sheets (2) are located in the middle of the rotor iron core, and the first punching sheets (1) are located at two axial ends of the rotor iron core. The first punching sheet (1) and the second punching sheet (2) are provided with magnet grooves (11, 21) used for placing a magnet (3), the second punching sheet (2) is provided with an accommodating groove (22) at the position of the magnet groove (21) corresponding to the periphery of the magnet (3), the first punching sheet (1) shields the accommodating groove (22) in the axial direction, a foaming material (4) used for fixing the magnet (3) is arranged in the accommodating groove (22), and the foaming material (4) is used for fixing the magnet (3). Therefore, the magnet is fixed by the foaming material.

This application discloses an auxiliary power supply system for a photovoltaic inverter, including a DC auxiliary power supply, a first AC auxiliary power supply, a second AC auxiliary power supply, a rectifier unit, a first controllable switch, and a second controllable switch. The input terminal of the rectifier unit is connected to the AC power grid via the first controllable switch, and the output terminal of the rectifier unit is connected to the input terminal of the first AC auxiliary power supply and one end of the second controllable switch. The other end of the second controllable switch is connected to the input terminal of the second AC auxiliary power supply. The input terminal of the DC auxiliary power supply is connected to the photovoltaic string, and the output terminals of the DC auxiliary power supply, the first AC auxiliary power supply, and the second AC auxiliary power supply are used to provide power to the load. The control terminals of the first and second controllable switches are used to receive control signals to turn the system on or off under the action of the control signals. This application allows for flexible switching of the AC auxiliary power supply to reduce losses, based on the user's actual application scenarios.