15results about How to "Reduce hysteresis" patented technology

The invention discloses a gene detection sample oscillation mixing device capable of accurately controlling the speed, and relates to the technical field of gene sample detection, the gene detection sample oscillation mixing device comprises a device host and a driving member, and is characterized in that the driving member is vertically embedded in the device host, and the top power output end of the driving member is horizontally connected with a rotating frame member. According to the gene detection sample oscillation mixing device capable of accurately controlling the speed, the oscillation frequency and amplitude can be accurately controlled according to preset parameters through a high-precision speed sensor and an intelligent regulation and control system which are arranged in the device host. And the driving component adopts an advanced motor driving technology, so that the stability and high efficiency of power output are ensured. And the rotating frame component is designed into an adjustable structure and can be flexibly adjusted according to the sizes of different sample containers, so that the uniformity of oscillation mixing is ensured. And the clamping component is made of a soft and elastic material, so that the sample container can be firmly clamped, and the damage to the sample in the oscillation process can be avoided.

The invention discloses a hydroelectric generating set speed regulator load control method and system, and the control method comprises the steps: obtaining unit power # imgabs0 # and guide vane opening degree Y data of a hydroelectric generating set under different water heads, and inputting the data into a monitoring system database; the monitoring system database searches a target guide vane opening degree Y1 corresponding to the target load # imgabs2 # under the current water head according to the target load # imgabs1 #, and a speed regulator controller adjusts the guide vane opening degree Y to the target guide vane opening degree Y1 according to the given opening degree; after the guide vane opening degree Y is adjusted to the target guide vane opening degree Y1, the speed regulator controller controls the unit power # imgabs3 # to be adjusted to the target load # imgabs4 #; after the unit power # imgabs5 # is adjusted to the target load # imgabs6 #, a speed regulator controller is converted into an opening degree adjusting mode from a power mode; the speed regulator controller can quickly determine the target guide vane opening degree Y1 through the monitoring system database, the speed regulator controller can predict and adjust the guide vane opening degree Y in advance through the water head and the monitoring system database, and the speed regulator lag phenomenon caused by load change and water head fluctuation is effectively reduced.

The invention discloses a self-powered flexible humidity sensor based on a hydrogen bond organic framework and a preparation method and application thereof, the self-powered flexible humidity sensor comprises a symmetrical electrode, an HOF / CNF electrolyte membrane located on one side of the symmetrical electrode and an HOF / CNF / NaCl electrolyte membrane located on the other side of the symmetrical electrode, and the HOF / CNF electrolyte membrane is in contact with the HOF / CNF / NaCl electrolyte membrane; the symmetric electrode is a Ti < 3 > C < 2 > T < x >-MXene electrode, and the HOF is a hydrogen bond organic framework material synthesized by taking 1, 2, 4, 5-tetra (4-carboxyl phenyl) benzene as a precursor. According to the self-powered flexible humidity sensor, conversion from permeation energy to electric energy is achieved by regulating and controlling the salt ion concentration, and the self-powered flexible humidity sensor shows good flexibility and low hysteresis characteristics and has high sensitivity of 0.17 microamperes / % RH, rapid response time of 1.06 s and stability of more than 200 cycles.

The invention discloses a preparation method and application of a zinc-dipped aluminum foil negative electrode applied to a lithium ion battery, and belongs to the field of lithium ion batteries. The zinc-dipped aluminum foil is prepared aiming at the defects and deficiencies of the aluminum foil serving as a lithium ion battery negative electrode material; the zinc-dipped aluminum foil negative electrode prepared by the method is flat and bright, has good corrosion resistance and high conductivity, and has the advantages of low impedance, high charge-discharge rate, high first-circle coulombic efficiency, small hysteresis phenomenon and the like when being assembled with a lithium foil to form a half battery. The method comprises the following steps: 1, pretreating aluminum foil; 2, preparing a zinc dipping solution; and 3, zinc immersion treatment. The zinc-dipped aluminum foil negative electrode applied to the lithium ion battery is used as a negative electrode of the lithium ion battery. Compared with a half cell assembled by a traditional aluminum foil electrode, the zinc-dipped aluminum foil electrode has higher charge-discharge rate and lower impedance, and also has higher first-circle coulombic efficiency and more stable cycle performance.

This invention belongs to the field of medical temporal signal processing technology, specifically a method for predicting respiratory-related displacement based on attention-embedded dilated convolution. The method involves acquiring respiratory-related temporal data of the target object over continuous time; inputting this data into a trained respiratory-related displacement temporal prediction network model, which outputs the predicted respiratory displacement. The network model comprises multiple cascaded dilated convolutional residual blocks and a prediction layer. Each dilated convolutional residual block includes a causal dilated convolutional unit, a self-attention mechanism unit, and a residual connection unit. The output of the last dilated convolutional residual block is input into the prediction layer, which outputs the respiratory-related displacement of the target object at future time points. This invention dynamically weights key time steps during each layer's temporal feature extraction process, thereby improving the predictive ability for respiratory-related displacement and tumor motion.

The invention relates to a high-precision resonance ball type pressure and temperature integrated sensor, which is characterized in that a resonance ball and a resonance ball fixed support structure are integrally processed, the outer wall of the resonance ball is provided with a resonance ball surface electrode, and the inner wall of a spherical groove on a back cavity structure is provided with a back cavity structure surface electrode; the resonance ball clamped structure and the back cavity structure realize vacuum sealing through a bonding layer, an absolute pressure measurement vacuum cavity is formed between the resonance ball and the spherical groove after sealing, and surface electrodes of the resonance ball are in one-to-one correspondence with surface electrodes of the back cavity structure; a temperature measuring element is arranged on the outer wall of the resonance ball and used for sensing the temperature of the resonance ball in situ, and in-situ temperature error compensation of pressure measurement is achieved. According to the invention, real-time synchronous measurement of pressure and temperature is realized, and in-situ temperature compensation of pressure measurement is also realized, so that the measurement precision, long-term stability and temperature following performance of the pressure sensor are improved.

The application belongs to the field of food processing machines, and discloses a sand-free stir-frying cylinder, which comprises a cylinder body, wherein the cylinder body comprises a material inlet, a front material blocking part, a stir-frying part and a rear material blocking part connected in sequence, and the material inlet forms a circular truncated cone-shaped material channel; the front material blocking part forms a circular truncated cone-shaped front cavity, the top surface of the front cavity is connected with the top surface of the material channel in a coplanar manner; the stir-frying part forms a cylindrical middle cavity, the top surface of the middle cavity is connected with the bottom surface of the front cavity in a coplanar manner; the rear material blocking part forms a circular truncated cone-shaped rear cavity, the bottom surface of the rear cavity is connected with the bottom surface of the middle cavity in a coplanar manner; and the inner wall of at least one of the front material blocking part, the stir-frying part and the rear material blocking part is provided with a ceramic energy storage part. Through the arrangement of the ceramic energy storage part, the temperature in the stir-frying cylinder can be kept stable during the stir-frying process of the material, and the material can be polished without adding auxiliary materials such as sand and soil.

This utility model provides an intelligent force-controlled lightweight lithium-ion battery pruning machine. The machine includes a cutting blade and comprises a motor housing, a gear reduction mechanism, and an eccentric wheel. The motor housing has a motor output end. The gear reduction mechanism is connected to the motor output end and includes a rotating shaft. The eccentric wheel is fixed on the rotating shaft and connected to one end of the cutting blade. The gear reduction mechanism also includes a connecting end, and an oil seal mechanism is provided between the connecting end and the motor output end. This utility model solves the problem of excessive internal moving parts in pruning machines, leading to repeated friction during high-frequency shearing operations, resulting in a higher failure rate and increased equipment maintenance costs.

The invention discloses a metering asset intelligent demand prediction system and method based on an algorithm, and relates to the technical field of metering assets, and the method can gradually output a comprehensive adjustment demand prediction value and a final demand prediction value through introducing a basic demand prediction model and a progressive algorithm, and can accurately reflect the future equipment demand condition. The system establishes a multi-level early warning mode according to the current stock S (t) and the early warning threshold L, so that the early warning level can be dynamically adjusted according to different states of the stock. And in combination with the calculation of the supply and demand difference E1, the system can be helped to carry out preliminary evaluation, so that inventory and demands can be meticulously analyzed in a prediction stage. Compared with a traditional static threshold value monitoring method, the intelligent early warning mechanism has higher response speed and accuracy, the situation of stock overstock or supply interruption is avoided, and therefore reasonable storage of metering assets is guaranteed.

This invention provides a flexible inductive magnetic pressure sensor, comprising a magnetoelastic body unit, a magnetic sensing unit, and a magnetic rebound unit arranged sequentially from top to bottom, wherein the magnetization directions of the magnetoelastic body unit and the magnetic rebound unit are opposite. This invention also provides a flexible inductive magnetic pressure sensor array. Compared with the prior art, this invention utilizes the mutual repulsive force between the magnetoelastic body unit and the magnetic rebound unit with opposite magnetic poles to achieve rapid rebound of the magnetoelastic body, thereby reducing the hysteresis behavior of the inductive magnetic pressure sensor.

This application relates to the field of photovoltaic technology, and particularly to perovskite solar cells, tandem solar cells, and photovoltaic modules. The perovskite solar cell includes a perovskite light-absorbing layer, which comprises perovskite material and amino-functionalized polymer additives. The perovskite material includes materials with the general formula ABX3, where A ions are monovalent cations and B ions include Pb. 2+ The X ion is a monovalent anion; the amino-functionalized polymer additives include at least one selected from polyethyleneimine, polypropyleneimine, amino-functionalized polyetherimide, amino-functionalized polyvinylpyrrolidone, amino-functionalized polyvinyl alcohol, amino-functionalized polyacrylic acid, and amino-functionalized polyquaternary ammonium salt. This application adds amino-functionalized polymer additives to the perovskite light-absorbing layer to passivate defects at perovskite grain boundaries, reduce surface state density, prolong carrier lifetime, increase short-circuit current density, enhance the bending resistance of the perovskite light-absorbing layer, and improve the environmental stability of the device.

The utility model discloses a pressure fine-tuning hydraulic valve group used in coiled tubing equipment, which comprises an overflow pressure reducing valve, a single-bead shuttle valve, a pilot reversing valve and a hydraulic valve block, the overflow pressure reducing valve is arranged on the upper end face of the hydraulic valve block, and a T port, a third port, a fourth port, a P port, a first port and a second port are arranged on the side face of the hydraulic valve block. The pilot reversing valve is arranged on the side face of the hydraulic valve block, the single-bead shuttle valve is arranged on the side face of the hydraulic valve block, and the high-pressure ports in the first port and the second port are communicated to a pilot oil port below through the single-bead shuttle valve. According to the utility model, the pressure of an inlet high-pressure main oil path is adjusted to be reduced to the pressure required by an outlet, meanwhile, the full-flow overflow function from the outlet to an oil tank is realized, the characteristics of pressure / flow are very flat, the stability is good, the hysteresis is very low, and the action of hydraulic equipment is more accurate and stable.

The application discloses an immersive AI process three-dimensional dynamic visualization method based on a particle system, and relates to the technical field of computer graphics and three-dimensional visualization. The immersive AI process three-dimensional dynamic visualization method based on the particle system comprises AI process association operation, AI process particle processing and UI interaction control. The AI process particle processing is executed to obtain an AI particle dynamic structure, the AI process key year switching is executed to obtain camera track-particle disturbance parameter linkage, and the UI interaction control is executed to obtain AI process dynamic visualization time axis interaction, so that the accuracy of immersive AI process three-dimensional dynamic visualization data is improved, and the technical problem of low accuracy of immersive AI process three-dimensional dynamic visualization data in the prior art is solved.

This invention discloses a multilayer piezoelectric ceramic vibration device for improving the strength and plasticity of alloys manufactured by laser additive manufacturing. Belonging to the field of electrical ceramic materials technology, it includes a vibration platform, a function amplifier, a power amplifier, and a multilayer piezoelectric ceramic actuator adapted to the vibration platform. The vibration platform supports a metal substrate and transmits the vibration of the multilayer piezoelectric ceramic actuator to the molten pool during the laser additive manufacturing process. Through the high-frequency stable vibration output by the multilayer piezoelectric ceramic actuator, a strong acoustic flow effect and mechanical disturbance effect are formed in the molten pool region. On the one hand, this accelerates the escape of gas from the molten pool, completely eliminating porosity defects such as pores and shrinkage, solving the problems of incomplete fusion and uneven interface bonding in traditional laser additive manufacturing. On the other hand, it breaks up the coarse dendrites growing in the molten pool, increases the nucleation core, and achieves significant refinement of grains and the second phase structure, ultimately achieving a synergistic improvement in alloy strength and plasticity.

The invention discloses a pure magnetic driving part assembly fusion speed reduction joint servo system, and belongs to the field of motors. A pure magnetic force driving part assembly fusion speed reduction joint servo system comprises a base speed motor, the base speed motor comprises a motor stator, the inner side of the motor stator is provided with an axially-through stator groove in the circumferential direction, a motor winding is embedded in the stator groove, a high-speed rotor capable of rotating is coaxially arranged in the motor stator, the high-speed rotor is in a circular ring shape, and the high-speed rotor is connected with a motor winding. The high-speed rotor is formed by alternating high-speed rotor magnetic conductive iron cores and high-speed rotor magnets along the circumferential direction; the outer side of the high-speed rotor is coaxially provided with a static and annular magnetism adjusting piece, and the magnetism adjusting piece is formed by alternating magnetism adjusting block magnetic conductive iron cores and magnetism adjusting block non-magnetic conductive pieces in the circumferential direction and used for adjusting the axial magnetic field of the high-speed rotor. A low-speed rotor which is in a circular ring shape and can rotate is coaxially arranged on the outer side of the magnetism adjusting piece, and the low-speed rotor is composed of low-speed rotor magnetic conductive iron cores and low-speed rotor magnets which are alternately arranged in the circumferential direction.