48results about How to "Avoid problems such as failure" patented technology

The invention discloses skin-core structure aerogel composite fibers as well as a preparation method and application thereof. The preparation method comprises the following steps: treating aerogel particles and a polymer material through a skin-core compound spinning method, and carrying out synchronous compounding on the aerogel particles and the polymer material with a molten state at the tail end of a spinneret orifice through a guide pipe structure or a slit structure; synchronously carrying out wire drawing and cooling to form the skin-core structure aerogel composite fibers, wherein theskin-core structure aerogel composite fibers comprises a core containing the aerogel particles and a skin layer covering the core and the skin layer comprises the polymer material. The preparation method disclosed by the invention has the advantages of simple production technology, uniform aerogel-polymer compounding, complete preservation of an aerogel structure, advanced production equipment andthe like; the obtained skin-core structure aerogel composite fibers have the characteristics of excellent heat insulation performance, heat preservation effect, sound isolation performance, adsorption and filtering performance, thermal stability, no dust, economical efficiency and environmental protection and the like, and have a great application potential in the fields of clothing, home textiles, industrial heat preservation, adsorption and filtering and the like.

The invention discloses a prediction device based on a BP (Back Propagation) nerve network. The prediction device comprises a data receiving unit, a data preprocessing unit, an initializing unit, a learning unit, an iteration prediction unit and a data recovery unit. The used improved algorithm can automatically judge the original training data mode, and perform sample establishment and normalization on the original training data mode. The prediction device can be suitable for various complicated situations, has high flexibility and can finish prediction without auxiliary data and recover prediction results to be in a numerical range corresponding to the original training data.

The modified nitrile butadiene rubber sealing material and its preparation process belong to the field of rubber polymer material technology. The modified nitrile butadiene sealing material is prepared with nitrile butadiene rubber, carbon black, zinc oxide, stearic acid, antiager 2, 2, 4-trimethyl-1, 2-dihydro quinoline, dioctyl sebacate, sulfur and promoter paraffin in certain weight proportion, and through compounding material, banburying, roll mixing, vulcanizing and other technological steps. It is applied in making rubber parts in apparatus for storing, transporting, loading and unloading methane, liquefied gas and other fuel, and automobile engine. It has high elasticity, high heat stability, high oil resistance and other advantages.

The invention discloses a split inclined spoke torquer sensor which is mainly used for measuring a rotating torque of a machine system. The sensor comprises a spoke disk, an inner hub, an outer ring, a rivet or a bolt for connecting, a strain signal transmission line and a strain signal collecting module. The spoke disk can transform torque size to a corresponding electric signal and provide for a strain signal collecting module; the inner hub and the outer ring can be processed to be different dimensions and forms according to difference of using conditions, thereby overcoming the shortcoming that the spoke type torque sensor in the past is only directed at one using environment. The sensor is strong in generality, stable and reliable in measurement data; the signal is wirelessly transmitted; the split inclined spoke torquer sensor can be widely applied to torque measurement of laboratories and vehicles of various machinery devices.

The embodiment of the invention discloses a digital driving pixel circuit, a driving method thereof and a display panel. The digital driving pixel circuit comprises a data writing module, a latch module, at least two light-emitting modules and light-emitting control modules in one-to-one correspondence with the light-emitting modules, the data writing module is used for controlling writing of datavoltage into the latch module; the latch module is used for latching data voltage; the light-emitting control module is used for alternate conduction; the at least two light-emitting modules are controlled to emit light alternately; further, the characteristic deterioration caused by long-time continuous work of the light-emitting module can be avoided; according to the digital drive circuit, theproblems of failure of the light-emitting modules and the like in the prior art are solved, so that each light-emitting module can release heat and be cooled after emitting light for a period of timeand when not emitting light, the temperature of each light-emitting module is not too high, good characteristics of the light-emitting modules are guaranteed, and the display effect of the display panel comprising the digital drive circuit is improved.

The invention belongs to the technical field of filling adhesives and especially relates to a high-thermal-conductivity single-component underfill adhesive prepared from the following components, by mass: 10 to 30 parts of polyurethane modified epoxy resin, 5 to 15 parts of a first filler, 5 to 10 parts of a second filler, 5 to 15 parts of a curing agent, 2 to 5 parts of a curing accelerator, 1 to5 parts of reactive diluent and 0.5 to 2 parts of a coupling agent. The first filler is spherical aluminum oxide, carbon nanotubes and silicon carbide, and the polyurethane-modified epoxy resin is prepared from a polyurethane prepolymer and epoxy resin through a reaction. The added spherical aluminum oxide, carbon nano tube and silicon carbide belong to fillers with high heat conductivity coefficient, insulation, low fineness and small specific gravity, generate a synergistic effect, and can meet the characteristics of high heat conductivity, quick flowability, high permeability and low viscosity of the underfill adhesive. And the heat generated by a chip is quickly transferred to the printed circuit board, so that the temperature of the chip is effectively reduced, and the heat dissipation efficiency of the chip is improved.

The invention discloses a muck improvement agent which comprises liquid A and liquid B. The liquid A comprises, by weight, 0.25-0.33 parts of sodium bentonite, 0.01-0.015 part of carboxymethylcellulose and 1 part of water. The liquid B comprises, by weight, 0.001-0.003 part of polyacrylamide and 1 part of water. The invention further discloses a method for improving water-rich round-gravel stratumshield muck by the muck improvement agent. According to the muck improvement agent, the liquid A with the volume injection ratio of 30%, the liquid B with the volume injection ratio of 7.5% and soilsamples from an on-site water-rich round-gravel stratum are stirred and mixed, the collapsing degree can be controlled within 20cm, a permeability coefficient K of improvement soil reaches 1*10<-7>m / sunder water pressure of 2.5bar (25m water head), continuous time reaches 4 hours or more, the permeability coefficient is smaller than 1*10<-5>m / s serving as a flowing critical value, and improvementeffects are good.

The invention discloses a transmission mechanism and relates to the technical field of unmanned aerial vehicles. The transmission mechanism comprises a first shaft and a second shaft, wherein the first shaft is perpendicular to the second shaft in a spaced mode. A driving gear is coaxially and fixedly connected with the first shaft, a transmission gear meshing with the driving gear is coaxially installed on the second shaft, and the transmission mechanism further comprises a third shaft which is arranged in the radial direction of the second shaft. The third shaft is controlled by a control assembly to rotate around the second shaft, and a driven gear meshing with the transmission gear is coaxially installed on the third shaft. By means of the transmission mechanism, the technical problemthat a transmission mechanism in the prior art cannot be partly tilted is solved, the transmission mechanism can quickly tilt under the condition of maintaining norm transmission, and the transmissionmechanism is simple and compact in structure, high in safety and wide in application range, and is little affected by gyroscopic effects.

The invention relates to a metal and composite laminated damper. The metal and composite laminated damper comprises a metal tube and connecting pieces correspondingly located at two ends of the metaltube, grooves are formed in the two connecting pieces, the end parts of the metal tube are fixedly and hermetically arranged in the grooves, the metal tube is filled with a plurality of viscous-elastic material layers and a plurality of rigid material layers, and the viscous-elastic material layers and the rigid material layers are sequentially and crosswise arranged up and down. The metal and composite laminated damper is a novel combined type metal damper, joint energy dissipation is achieved by using multiple energy dissipation mechanisms, the energy dissipation mechanisms are definite, andvarious energy dissipation capacities are achieved; the yield displacement is small, and the ductility performance is excellent; the performance is stable, and the energy dissipation efficiency is high; and installation and disassembly are convenient, and the arrangement is flexible.

The invention belongs to the technical field of spraying equipment, and discloses an indoor spraying system capable of supplementing atomizing liquid. The indoor spraying system aims to solve the problem that the spraying equipment is not suitable for small space. The spraying system comprises a switching power supply, an atomizer, a main control chip and a fluid supplementing device. The atomizeris internally provided with a secondary water tank, an atomizer chip, an electromagnetic valve, an atomizing plate and an air blower, and the electromagnetic valve, the air blower and the atomizing plate are electrically connected with the atomizer chip respectively. The fluid supplementing device comprises a primary water tank and a water source conveying mechanism; the water source conveying mechanism is electrically connected with the main control chip; a first liquid level detecting device electrically connected with the atomizer chip is arranged in the secondary water tank; the atomizerchip and the main control chip are electrically connected with the switching power supply respectively; and a baffle is further arranged at an atomizing opening of the atomizer. According to the spraying system, spray fluid can be continuously provided for the atomizer, the spray coverage range can be enlarged, the atomizing fluid is effectively saved, and the atomizing fluid can be sufficiently atomized.

The invention discloses a garbage collection base station and a cleaning system, and the garbage collection base station comprises a base station body, a dust collection assembly, a draught fan, a dust fullness detection device and a controller. The base station body is provided with a dust inlet channel and an air exhaust channel. And the dust collection assembly is pneumatically communicated with the dust inlet channel and the air exhaust channel. The draught fan is fixed to the base station body and is in pneumatic communication with the air exhaust channel. And the dust fullness detectiondevice is fixed on the base station body. And the controller is fixed on the base station body. According to the technical scheme, the use intelligence of the garbage collection base station is improved.

The invention provides a preparation method for a high-voltage element based on heat conduction of organic silicon rubber. The preparation method comprises steps: (1) a shell body for assembling of a high-voltage element is cleaned, and beforehand mixed rubber materials containing organic silicon rubber are stirred; (2) the mixed rubber materials are encapsulated in the cavity between the shell body and the high-voltage element which is assembled in the shell body; (3) the mixed rubber materials encapsulated in the cavity are subjected to (4) the mixed rubber materials are subjected to curing process, to the high-voltage element.

The invention relates to a method for improving full-section muck in a silt soil layer during construction of a contact channel pipe jacking machine. The method comprises the following steps of: S1, determining a muck improver; S2, performing an indoor test; S3, mixing the muck improver on site; and S4, performing site construction. The method has the beneficial effects that the muck is improved by adopting a bentonite improver (a bentonite solution and a high-molecular flocculant), a high-molecular polymer solution has relatively high adhesion and can well absorb soil moisture, and the permeability coefficient of the muck is changed through cutter head cutting and screw machine stirring, so that the muck is fully improved. The improved muck is not easy to gush and cake, the permeability of the muck in a soil bin is effectively reduced, and the gushing is further inhibited, so that shield tunneling is smooth and efficient, the shutdown time is shortened, the muck in a screw machine is prevented from being solidified, and the construction safety and smoothness are guaranteed.

The invention discloses an elastic reliable router for a power grid wide-area phase measurement system. The elastic reliable router comprises a Data packet processing module, a RetransReq data packetprocessing module, a RetransReport data packet processing module, a basic data packet processing module, a multi-path forwarding state table module, a content storage queue module and a physical port.According to the elastic reliable router, active lost data packet detection and a single or batch retransmission mechanism are realized, so that a lost data packet can be directly recovered in a network from an upstream router through which the lost data packet passes, the recovery time success rate and high efficiency of the lost data packet are improved, and safe and stable operation of the power grid wide-area phase measurement communication system is ensured.

The invention provides a connector and a low-temperature rocket system, and the connector comprises a first connection structure which comprises a first panel, a first liquid path channel and a plurality of first gas path channels arranged on the first panel, a second connecting structure, a locking piece; the second connecting structure comprises a second panel, the second panel abuts against the first panel, the second panel is provided with a second liquid path channel and a plurality of second gas path channels, the second liquid path channel is communicated with the first liquid path channel, and the second gas path channels are communicated with the first gas path channels; and the locking piece penetrates through the first panel and the second panel and has a locking state for fixing the first panel and the second panel and a separating state for unlocking the first panel and the second panel. By means of the arrangement, effective communication and integrated arrangement of the multiple gas path channels and the multiple liquid path channels on the single connector are achieved, the number of the connectors is reduced, simultaneous communication or separation of the gas path channels and the liquid path channels is achieved, the separation reliability of a system or device where the connectors are located is improved, the structure is simple, and implementation is easy.

The invention provides a fuel cell system exhaust hydrogen concentration estimation method, which comprises the following steps: S1, obtaining the instantaneous molar flow of hydrogen entering a galvanic pile; S2, collecting the flow of air entering the galvanic pile to obtain the instantaneous molar flow of air; S3, calculating the hydrogen consumption molar flow and the oxygen consumption molar flow consumed in real time according to the current, the air excess coefficient ratio and the voltage; S4, measuring the environment temperature and the environment pressure at the tail emission position, and obtaining the water vapor molar fraction at the tail emission position through calculation, wherein psat is the saturation pressure of water vapor, and patm is the environment pressure; S5, calculating the exhaust hydrogen concentration according to the following formula.

The invention provides a cargo storage location determination method and device, equipment, a system and a medium. In the method, an upper computer obtains the cargo weight of a to-be-warehoused cargo, and then obtains target storage location information determined for the to-be-warehoused cargo according to the cargo weight and a pre-obtained mapping relation, the mapping relationship is a corresponding relationship among the offset information, the weight and the storage location information of each cargo, and the offset information comprises an offset distance and / or an offset angle. When the storage position of the goods is planned, the influence of the position of the goods on the deviation information is considered, the storage position of the goods is comprehensively planned, deviation of the goods under the influence of the shuttle vehicle is reduced, and the problem that goods taking fails due to the fact that the goods deviate too large is avoided.

The invention discloses an automatic drug maintenance system, and belongs to the field of drug maintenance, and the system comprises: a cloud server which is remotely connected with a photographing robot and a picking robot; the detection unit that periodically detects whether the medicine needs to be maintained or not; the first processing unit that carries out processing to obtain a medicine code and a storage location; the first instruction unit that controls the photographing robot to photograph an image; the comparison unit that obtains an image and compares the image with a standard image to judge whether the medicine quality is qualified or not; and the second instruction unit that sends a control instruction to control the picking robot to take out unqualified medicines. The invention has the beneficial effects that whether drugs need to be maintained or not is periodically detected, the photographing robot is controlled to carry out multi-directional photographing recognition on the drugs, unqualified drugs are automatically screened, the picking robot is controlled to carry out zoning treatment on the unqualified drugs, it is guaranteed that the drugs in a warehouse must be maintained once and cannot be missed, and repeated maintenance is avoided, and the maintenance efficiency is improved.

The invention discloses an Ion generating apparatus comprising an ion generator and an power source, wherein the ion generator is connected with the electrical source through power cords, high voltage discharge wires are led out from the ion generator, the ion generator comprises a outer casing and an oscillation high voltage device arranged in the inner chamber of the outer casing, the outer casing is provided with at least a high voltage withstanding shell.

The invention discloses a wind power gear box heat exchanging mechanism. The wind power gear box heat exchanging mechanism comprises a heat exchanging assembly, an air inlet channel and an air outletchannel, wherein the air inlet channel is connected with an air inlet of the heat exchanging assembly, and the air outlet channel is connected with an air outlet of the heat exchanging assembly. The heat exchanging assembly is arranged outside a gear box and comprises a heat exchanging core body and a heat exchanging drive unit, wherein the heat exchanging core body contains a lubricating oil passage, and the heat exchanging drive unit is connected with the heat exchanging core body. The lubricating oil passage is used for enabling lubricating oil circularly pumped into the gear box through alubricating oil pump to pass through. The air inlet end of the air inlet channel is used for communicating with the exterior of a cabin through a cabin cover air inlet, and the air outlet end of the air outlet channel is used for communicating with the exterior of the cabin through a cabin cover air outlet. The invention further discloses a wind generating set applying the wind power gear box heatexchanging mechanism. According to the wind power gear box heat exchanging mechanism and the wind generating set applying the wind power gear box heat exchanging mechanism, by changing a heat exchanging gas inlet and by means of flowing of cold air outside the cabin in the heat exchanging core body, heat of the lubricating oil in the heat exchanging core body is guided out, the heat exchanging efficiency is improved, the bearing invalidation problem caused by high temperature of the gear box is avoided, the failure rate of the gear box is reduced, the reliability of the whole machine is improved, and the generating capacity of the wind generating set is guaranteed.

The invention relates to a spinning frame and a joint operation method thereof. The spinning frame comprises a plurality of rows of stations; each station comprises a drafting mechanism, a spindle used for forming a spool and a broken yarn detection device; the drafting mechanism comprises a plurality of roller pairs including a lower roller; joint operation of each station is carried out under a non-negative-pressure yarn suction device and comprises the following steps that when yarn breakage of the spinning frame is detected, a rough yarn feeding roller of the station is stopped, and rough yarn feeding is stopped; the yarn with the set length is placed on one roller, and the length from the contact point of the yarn and the roller to the tail end of the yarn is the set length; and rough yarn feeding and spindle rotation are started, so that the rough yarn and the yarn tail end move at the same time and meet in the joint area, and joints are formed under the condition that the rough yarn is not wasted. According to the spinning frame, the rough yarn splicing action in the state without an air suction pipe can be achieved, splicing is accurate, the phenomenon of yarn flying is avoided, the production cost of the spinning frame can be saved, and meanwhile equipment failures or yarn quality problems are avoided.

The invention discloses an intelligent plant factory which comprises a box and a monitoring system. The box is divided into a planting area and an adjusting area by a first partition plate, the planting area is provided with a seedling tray and a sensing device, the adjusting area is provided with an adjusting device, a first air outlet and a firs air inlet are formed in the first partition plate,a first exhaust fan is mounted in the first air outlet and used for conveying air in the adjusting area to the planting area and / or a first draft fan is mounted in the first air inlet and used for conveying air in the planting area to the adjusting area, and a monitoring system is in communication connection with the sensing device, the adjusting device, the first exhaust fan and the first draftfan. According to the intelligent plant factory, the box is divided into the planting area and the adjusting area by the first partition plate, the exhaust fan and the draft fan are arranged on the partition plate, air circulation is formed in the box through the exhaust fan and the draft fan, so that consistency of air temperature and humidity of various positions in the planting area is improved, and equivalent growth of crops at the various positions in the planting area is facilitated.

The invention discloses an anastomotic nail manufacturing and mounting integrated production technology process. The process comprises the following steps that a titanium wire undergoes cleaning, straightening and destressing, and the wire is pulled to a desired length to reach a to-be-cut position; then an air cylinder jacks to drive a bevel connection cutting bottom mold to jack, and bevel connections at the two ends of the titanium wire are formed through cutting; a formed titanium nail is grasped by a titanium nail clamping jaw, conveyed to the upper part of a rotary disc, and conveyed into a material waiting clamp on the rotary disc through an upper air cylinder and a lower air cylinder, and after the titanium nail clamping jaw is loosened, a forming punch presses downwards to enter the material waiting clamp; and after the titanium screw of the material waiting clamp is moved to a first station, a bevel edge of the other side of the titanium nail is formed through shearing. According to the process, due to the fact that the titanium wire is directly made into the titanium nail through the cleaning, the straightening and the destressing, the problems that a nail point of the nail point part of the titanium nail is not sharp enough due to the fact that the nail point of the titanium nail undergoes transportation and ultrasonic cleaning, the resistance of inserting into tissue is increased or the size of the titanium nail after forming is not qualified, and the titanium nail cannot be formed are greatly reduced.

The invention provides an unmanned aerial vehicle multi-source hybrid power energy management intelligent control system and method, and the system comprises a flight control system, an engine intelligent control system and an ISG starting / power generation integrated motor intelligent control system which are connected with the flight control system, and an intelligent energy distribution system.The engine intelligent control system is in communication connection with the engine, the ISG starting / power generation integrated motor intelligent control system is in communication connection withthe ISG starting / power generation integrated motor, and the intelligent energy distribution system is in communication connection with the engine intelligent control system and the ISG starting / powergeneration integrated motor. The unmanned aerial vehicle multi-source hybrid power energy management intelligent control system realizes overall control of the whole multi-source hybrid power system through mutual communication and cooperative work among the subsystems.

The invention discloses a weather prediction method, which includes the steps: providing temperature information values, normalizing the temperature information values, establishing an input / output matrix of a training sample, predicting weather through a neural network based on the output matrix, and the like. Original training data modes can be automatically distinguished by an improved algorithm, and are subjected to sample establishing and normalization. The weather prediction method is applicable to various complex circumstances, is high in flexibility, and needs no auxiliary data to complete prediction, and prediction results can be restored within a numeric range corresponding to original training data.

The invention discloses an integrated range extender and a vehicle, the integrated range extender comprises an engine and a generator, and the engine is provided with a crankshaft; the generator has a motor rotor; and the crankshaft and the motor rotor are integrally formed, so that the engine is connected with the generator. According to the technical scheme, the integrated range extender is compact in structure.