18results about How to "Improve adverse effects" patented technology

The invention provides a fuzzy uncertainty analysis method for dynamics optimization of a parallel mechanism containing a gap space, and belongs to the technical field of industrial robot modeling and optimization, and the method comprises the following steps: S1, building a spherical pair model containing a dry friction gap; and S2, according to constraint conditions of the spatial parallel mechanism containing the spherical pair dry friction gap, obtaining a dynamic model of the three-degree-of-freedom spatial parallel mechanism containing the spherical pair dry friction gap. S3, performing optimization according to the dynamic model of the spatial parallel mechanism; and S4, agenting the optimized data into the dynamic model of the mechanism, selecting fuzzy parameters, establishing a dynamic model of the spatial parallel mechanism containing the fuzzy parameters, and carrying out solution analysis. According to the method, the adverse effect of the dry friction gap on the dynamic characteristics of the mechanism can be improved, and the method is provided for predicting the influence of the fuzzy parameters of the mechanism on the dynamic characteristics of the mechanism.

The invention discloses an ultrasonic puncture guiding system and method, and the system comprises an ultrasonic diagnosis probe which is used for obtaining a corresponding ultrasonic image according to an ultrasonic diagnosis excitation signal; the puncture needle is used for receiving an ultrasonic signal excited by the ultrasonic diagnosis probe when the ultrasonic diagnosis probe obtains the ultrasonic image and transmitting the ultrasonic signal to the signal receiving unit; the signal receiving and processing unit is used for receiving an ultrasonic signal transmitted by a receiving type ultrasonic transducer on the puncture needle and an ultrasonic diagnosis excitation signal of an ultrasonic diagnosis unit, so that a voltage amplitude signal and signal delay are obtained, and the position and the movement tendency of the needle point of the puncture needle are obtained; and the ultrasonic diagnosis unit is used for presenting the position and the movement tendency of the needle point of the puncture needle on an ultrasonic image. The invention solves the adverse influence of the puncture angle and the puncture tangent surface of the puncture needle on ultrasonic guided puncture, improves the guide effect under the conditions of large angle and tangent surface deviation of the puncture needle, reduces the operation difficulty of doctors, reduces the learning cost and improves the puncture efficiency.

The invention discloses a bulk cargo ship cargo hold cover and a bulk cargo ship, the bulk cargo ship cargo hold cover comprises a hatch cover and a hatch coaming, the hatch cover is arranged above an exposed deck, and the hatch coaming is embedded in the exposed deck; a first pressing strip is arranged on the exposed deck, and a first sealing part is arranged at the bottom of the hatch cover; a second pressing strip is arranged on the hatch coaming panel, and a second sealing part is arranged at the bottom of the hatch cover; a hatch cover skirt plate is fixedly arranged at the bottom of the hatch cover and arranged between the first sealing component and the second sealing component. And an inflatable pressing part is arranged on the hatch coaming vertical plate. The cargo hold cover of the bulk cargo ship has the advantage of multi-point watertight protection.

The invention relates to an omagazines tosylate preparation and a preparation method thereof. The preparation method comprises the following steps: mixing and dissolving ombracin tosylate, a pH regulator and an excipient to obtain an ombracin tosylate dissolved solution; and freeze-drying the omagazines tosylate dissolving solution to obtain the omagazines tosylate preparation. By controlling the temperature, the pH and the freeze-drying process of the prepared solution, the high-quality omagazines tosylate preparation is obtained, the impurity content is low, the adverse effects of illumination and high temperature on the preparation can be improved, the stability of the preparation in the transportation, storage and use processes is greatly improved, the safety of the omagazines tosylate preparation is improved, and the application prospect is wide. The medicine has obvious clinical advantages.

This application discloses a servo driver and its control method, as well as a servo system, relating to the field of servo driver control technology. The control method for the servo driver includes: acquiring the current position command of the servo driver; determining the rigid position output signal and the flexible position output signal of the servo driver based on the current position command; fusing the rigid position output signal and the flexible position output signal to obtain the target position command of the servo driver; and controlling the servo driver to operate according to the target position command. This application can ensure the position control accuracy of the servo system while ensuring the normal operation of the electronically controlled equipment in the servo system.

This utility model discloses a footwear product, including: a sole and an upper. On the side view projection surface of the footwear product: the lower surface of the sole forms a continuous, upward-curving, arc-shaped rolling profile extending to the front of the sole in the forefoot area, and a ground-contacting plane in the heel area; a sole reference plane is defined by the lowest point of the arc-shaped rolling profile and the ground-contacting plane; the lowest point of the arc-shaped rolling profile corresponds to the posterior side of the metatarsal region of the foot; the ratio of the distance from the forefoot of the arc-shaped rolling profile to the sole reference plane to the projected length of the arc-shaped rolling profile on the sole reference plane is 1:1.4 to 1:1.6; the upper surface of the upper forms a continuous, upward-curving arc-shaped profile extending to the front of the shoe in the toe area, curving upwards to its highest point and then downwards; the lowest point of the arc-shaped curved profile at the toe is parallel to the sole reference plane, defining a toe reference plane, and the lowest point of the toe corresponds to the toe-heel area of ​​the foot. This footwear product can improve the adverse effects of long-distance running on runners' toes.

The application discloses an analysis method for silicon and manganese alloy element enrichment behavior of hot-rolled plate coil oxide scale, and belongs to the technical field of hot-rolled plate coil surface oxide scale detection and evaluation, comprising: sampling, preparing a sample for a test section, identifying the hierarchical structure of the oxide scale, the oxide scale-matrix interface and the abnormal area, determining the measurement path and / or measurement area across the thickness direction of the oxide scale and the oxide scale-matrix interface; screening and positioning silicon (Si) and manganese (Mn) in the test section, quantitatively performing line scanning and / or area scanning on the test section by using EPMA to obtain concentration distribution data of target elements; establishing a coordinate system, determining the reference concentration of the target elements, and calculating the enrichment index according to the concentration distribution data; comparing the enrichment index with a pre-established pickling defect risk threshold value, and outputting the result. The application solves the problems of insufficient authenticity of the test section, non-uniform measurement path, difficult comparison of the results and insufficient stability of the determination basis in the prior art.

The invention relates to the technical field of alloys, in particular to a rare earth-doped high-temperature-resistant chemical-resistant alloy material and a preparation method thereof. The material comprises the following components in parts by weight: 2.34 to 4.39 parts of cerium, 1.48 to 1.96 parts of dicerium trioxide, 4.34 to 7.28 parts of europium, 2.24 to 3.54 parts of europium oxide, 1.84 to 2.68 parts of yttrium, 0.58 to 1.03 parts of yttrium oxide, 4.85 to 6.96 parts of titanium, 2.58 to 3.67 parts of titanium dioxide, 5.21 to 8.56 parts of hafnium, 2.56 to 4.32 parts of hafnium dioxide, 10.24 to 20.34 parts of nitrogen-doped tungsten carbide and the balance of nickel. The alloy material provided by the invention has excellent high temperature resistance and chemical resistance.

The embodiment of the invention discloses a display panel and a display device. The display panel comprises a substrate, a plurality of conductive layers arranged on one side of the substrate in a stacked mode and at least one pixel circuit, and the pixel circuit comprises a driving transistor and a first capacitor; the multiple conductive layers arranged on one side of the substrate in a stacked mode comprise the first conductive layer and the second conductive layer, the second conductive layer is located on the side, away from the substrate, of the first conductive layer, the active layer is arranged on the side, away from the substrate, of the second conductive layer, a first pole plate of the first capacitor is located on the first conductive layer, and a second pole plate of the first capacitor is located on the second conductive layer. The first capacitor is located below the driving transistor, so that the first polar plate of the first capacitor can perform bottom shading on the driving transistor, the adverse effect of illumination on the driving transistor is improved, the screen body stability is enhanced, and the display effect is improved.

A kind of high nickel precursor, positive electrode material and preparation method thereof, belong to the technical field of lithium ion battery materials, overcome the defect that doping elements are unevenly distributed in the material body when the prior art prepares high nickel precursor. The preparation method of the high nickel precursor of the present invention comprises the following steps: step 1, prepare Al-containing nickel cobalt manganese salt solution, ammonia solution, alkali solution precipitant and ammonia bottom liquid; in the Al-containing nickel cobalt manganese salt solution, the Al / TM atomic ratio is 0.001-0.01, and TM is the sum of the amount of substance of nickel, cobalt and manganese atoms; step 2, add the ammonia bottom liquid to the reactor, and adjust the pH of the ammonia bottom liquid to 10.7-11.7, pump the Al-containing nickel cobalt manganese salt solution, ammonia solution and alkali solution precipitant into the reactor at the same time, stir during the feeding process, and continue stirring reaction after the feeding ends; step 3, solid-liquid separation, washing, drying to obtain a high nickel precursor. The present invention can reduce the generation of particle microcracks and improve the long cycle stability of the material.

A temperature-increasing and water-fertilizer-retaining system for a mobile jujube tree root system in a greenhouse is carried out according to the following steps: (1) land leveling and ridging: carrying out land leveling in a greenhouse shed, starting ridging after leveling, and ridging high ridges at intervals in the east-west row direction in the shed; (2) laying heat preservation polystyrene boards: after ridging, carrying out warming treatment on the ridge surface, laying a layer of heat preservation polystyrene boards with the thickness of 5cm at the center of the ridge surface in the vertical direction, leaving no gap between the polystyrene boards, and pressing soil on the polystyrene boards with the thickness of 5cm while laying; and (3) paving a film and adding a leakage pipe, namely leveling the soil on the thermal insulation polystyrene board, forming a groove with the width of 5-6cm in the middle of the soil layer, paving a waterproof film with the width of 75-80cm on the soil layer after the groove is formed, putting a yarn-wrapped leakage pipe with the diameter of 4-5cm in the groove after the waterproof film is paved, and paving a small amount of gravel blocks on the leakage pipe to fill and level up the groove. The method solves the problems of low ground temperature and low soil moisture in the production stage of facility mobile cultivation of Lingwu long jujube, improves and maintains the temperature and humidity of the potted Lingwu long jujube root system, reduces the fertilizer loss, improves the flowering and fruit setting rate, and increases the fresh fruit yield.

The invention relates to a hot-rolled complex phase wire rod for 1860MPa bridge cables and a manufacturing method thereof. After rolling and spinning a wire rod with C-Si-Mn-Cr components, the wire rod is subjected to online molten salt micro-quenching isothermal treatment to cool the wire rod at a cooling rate of ≥39°C / s, enter a mixed phase region of bainite and troostite from an austenite state, transform most austenite into troostite, and transform a small part of austenite into bainite, and isothermal tempering is performed to promote the melting of troostite lamellae. Finally, the wire rod is subjected to roller slow cooling to form a complex phase structure including tempered troostite, tempered bainite, ferrite and melted troostite. The strength and plasticity of the wire rod can be improved by regulating the complex phase structure, and the fluctuation of mechanical properties of small-size wire rod can be reduced to achieve a tensile strength of 1310-1360MPa and a cross-sectional shrinkage of 40%-45%. The wire rod is used to manufacture 1860MPa bridge cables, and the current status of unqualified performance such as wire breakage and torsion in the downstream wire making process can be improved.

The invention relates to a heat dissipation plate, terminal equipment and a preparation method. The heat dissipation plate comprises a first cover plate and a second cover plate which are oppositely arranged, a sealed working medium phase change space is formed between the first cover plate and the second cover plate, and the working medium phase change space is filled with a working medium; the blocking part is located in the working medium phase change space, connected with the first cover plate and the second cover plate and used for dividing the working medium phase change space into a first phase change area and a second phase change area which are arranged in parallel; the first phase change area is used for allowing the liquid working medium to circulate; the second phase change area is used for allowing the vapor-state working medium to circulate; wherein the material of the first cover plate and / or the material of the second cover plate comprise at least two different materials. The heat dissipation plate is provided with the space for working media in different states to circulate, so that the heat dissipation plate has efficient heat dissipation performance; and the heat dissipation plate is made of at least two different materials, so that the preparation flexibility is realized.

The invention discloses a building multi-layer retractable curtain combined sunshade device, which relates to the technical field of building sunshade. The device is characterized in that a retractable curtain sunshade component is composed of a sunshade curtain, a rolling curtain rod and a pulling rod elastically connected, and the multi-layer retractable curtain sunshade component is assembled and installed on the device structure outer frame to form a sunshade device unit, and the rolling curtain rod inside the sunshade component is elastically fixed on the device structure outer frame of the sunshade unit, and the pulling rod outside the sunshade component is driven by the pulling rod driven by a motor to move synchronously, and the sunshade curtain of the multi-layer component is stretched, contracted and tilted to an angle, so that the size and volume of the device and the components can be reduced to a minimum according to changes in the solar altitude angle, climate, function priority, etc., thereby reducing the blocking and influence of the device and the components on the field of view and lighting function of windows and glass curtain walls; the overall function is more adaptable to the natural environment, and promotes the comfortable, environmentally friendly and intelligent development of buildings.

The present invention provides a connection structure of a steel-concrete composite continuous beam in a negative bending moment zone, comprising steel main beams arranged at intervals and end cross beams located between adjacent steel main beams, and an open hole connection steel plate is arranged between the tops of adjacent steel main beams, and the open hole connection steel plate is provided with a plurality of first shear nails for fixing the open hole connection steel plate to the upper flange plate. The present invention has a reasonable design and a simple structure, and the upper flanges of adjacent steel main beams are connected as one by inserting the shear nails on the top of the steel main beam through the open hole connection steel plate, which effectively solves the problem of discontinuity at the end of the steel main beam, and at the same time improves the adverse effects of compression of the steel beam and tension of the concrete slab in the negative bending moment zone of the steel-concrete composite simply supported continuous beam, thereby ensuring the overall force performance and seismic performance of the steel-concrete composite continuous beam.

The application discloses a segmented installation method of a tunnel pile foundation steel reinforcement cage under an ultra-low clearance condition and relates to the technical field of tunnel pile foundation construction. The segmented installation method of the tunnel pile foundation steel reinforcement cage under the ultra-low clearance condition comprises the following steps: first, a light steel reinforcement framework containing only stirrups and reinforcing hoops is prepared and is lowered to the bottom of a hole in sections; then, a plurality of longitudinal main reinforcements are sent into the hole from the hole opening and are sunk to the bottom of the hole under the dead weight, and a pile end anchoring body is formed by grouting; a corrugated pipe is sleeved on the top end of the lower main reinforcement which needs to be lengthened to form an annular cavity, the bottom end of the upper main reinforcement is processed into an expanded end head, the expanded end head is inserted into the corrugated pipe after the corrugated pipe is filled with anchoring slurry, and slurry anchoring splicing is completed, and after all the main reinforcements are lengthened in turn, the pile body concrete is poured through a guide pipe. The application changes the mechanical connection at the hole opening into the anchoring of the flow state material in the hole, and the clearance required for construction only needs to meet the passing of a single component, so that the segmented installation of the steel reinforcement cage under the ultra-low clearance condition is facilitated.

The invention relates to the technical field of batteries, in particular to an electrolyte, a preparation method of the electrolyte and a lithium battery. The electrolyte comprises a lithium salt, an organic solvent and an additive, the organic solvent comprises an ether solvent, the ether solvent comprises cyclic ether, non-halogen substituted chain ether and halogen substituted chain ether, and the halogen substituted chain ether is at least one of chlorinated chain ether, brominated chain ether and iodinated chain ether. By configuring at least one of cyclic ether, non-halogen substituted chain ether and chlorinated chain ether, brominated chain ether and iodinated chain ether in a lithium battery electrolyte system for cooperation, the interface impedance is reduced, the low-temperature conductivity is improved, the problem of low-temperature lithium precipitation is relieved, the adverse effect of high temperature on the lithium battery is improved, and the service life of the lithium battery is prolonged. And the charge-discharge performance, the cycle performance and the safety performance of the lithium battery at relatively low temperature and relatively high temperature are improved. The lithium battery using the electrolyte provided by the invention has better performance at normal temperature, lower temperature and higher temperature, and a better application temperature range of the battery is widened.

The invention discloses a display panel and a preparation method thereof and a display device, the display panel comprises a substrate, light-emitting units, isolation structures and a first light absorption layer, the multiple light-emitting units are located on one side of the substrate, the isolation structures are located on one side of the substrate and located between the adjacent light-emitting units, and the isolation structures enclose to form an opening structure; the first light absorption layer comprises a first light absorption part and a first light transmission part, and the first light absorption part is located on the side, away from the substrate, of the isolation structure; the orthographic projections of the first light-transmitting part, the opening structure and the light-emitting unit on the substrate are at least partially overlapped. According to the display panel provided by the invention, the reflectivity of the display panel can be reduced, and the display quality is improved.