9results about How to "Avoid uncontrollability" patented technology

The utility model relates to packaging equipment and a packaging production line for silicon material boxing. The packaging equipment for silicon material boxing comprises a coarse counterweight feeder, a fine counterweight feeder arranged on a downstream process of the coarse counterweight feeder, and a weighing conveyor used for connecting the coarse counterweight feeder and the fine counterweight feeder, the coarse counterweight feeder comprises a first rack, a first stock bin, a distributor, a vibration feeder and an overflow pipeline. According to the silicon material packaging machine, the reliability of the packaging weight of silicon materials can be guaranteed while the packaging speed is guaranteed through the two-time counter weight of the coarse counter weight and the fine counter weight and the three-stage discharging mode. And during rough weight balancing, the silicon material can be discharged to the maximum extent without considering the weighing precision requirement, so that the discharging efficiency is ensured. During fine weight balancing, the weight of the material box is close to the weight required by packaging at the moment, and at the moment, the set weight is reached through small-flow discharging, so that it can be guaranteed that the weighing precision of the material box is very high, and meanwhile the efficiency of the whole weighing process is very high.

The preparation method comprises the following steps: grinding an iodine block to obtain iodine powder, adding the iodine powder into double distilled water, and carrying out ultrasonic stripping to obtain an iodine nanosheet suspension; under the conditions of stirring and water bath heating, dissolving polyvinyl alcohol with double distilled water to obtain a polyvinyl alcohol solution, adding sodium alginate in batches, and continuously stirring in a water bath to obtain a moldable composite hydrogel precursor solution; dissolving tannic acid by adopting an iodine nanosheet suspension, then adding into the moldable composite hydrogel precursor solution, uniformly stirring at room temperature, adjusting the pH value of the solution to be neutral, finally dropwise adding a borax solution, and stirring into gel to obtain the I2 / PBST moldable antibacterial composite hydrogel. The prepared composite hydrogel not only can play an antibacterial role and reduce the bacterial infection probability of infection sites, but also has excellent properties such as plasticity, stretchability, self-healing property, adhesion and degradability, is convenient to fill defect parts with different shapes, and is firm in adhesion.

This invention discloses a method for predicting the probability of electric vehicle charging and discharging based on an improved Markov chain. Taking charging and discharging piles as the research object, firstly, the states of the Markov chain are abstracted. The current total power consumption of the charging and discharging piles at the beginning of the cycle is obtained, and the state intervals are divided according to the adjustable range of the power consumption of the charging and discharging piles. Secondly, the decision-making behaviors of the charging and discharging piles are divided into four types: charging behavior, fast discharging behavior, slow discharging behavior, and stationary behavior. Then, the TPC method is used to establish a control strategy, determine the number of charging and discharging piles allocated for charging and discharging behaviors at a certain moment, and calculate the transition probability to establish a state transition matrix. This method is beneficial for leveraging the role of charging and discharging piles in the control of electric vehicle charging and discharging under the consideration of randomness, and for providing an intuitive and quantitative analysis of the charging and discharging amount of electric vehicles under control.

The invention provides an auxiliary impressing concrete construction device and a concrete impressing construction method, and the construction device comprises a storage bin with a feeding hole in the upper part and a blanking hole in the lower part; the brush cylinder is rotationally installed in the storage bin and corresponds to the discharging opening, and bristles are distributed on the outer wall of the brush cylinder in an array mode; the impressing wheel is rotationally mounted below the storage bin; the coining mold is detachably mounted and wraps the peripheral wall of the cambered surface of the coining wheel; the excitation mechanism is arranged in the impressing wheel and is used for applying vertically downward excitation force to the impressing wheel; one end of the delivery pipe is communicated with the blanking opening in the storage bin, and the other end of the delivery pipe extends in the direction deviating from the storage bin; and the transmission mechanism is used for driving the brush cylinder to rotate when the embossing wheel rotates. According to the invention, the impressing line shape is straight, the printing effect is uniform, and the printing pattern is continuous; manual force application die pressing is replaced, the uncontrollability of manual force application is avoided, and the imprinting effect and quality are improved; and the problems of flying dust pollution, non-uniform release powder spreading and the like caused by manual release powder spreading can be avoided.

The invention discloses a preparation method of a silver-coated copper nanowire, and belongs to the technical field of nano material preparation. According to the silver-coated copper nanowire, a copper nanowire serves as an inner core, the outer side of the inner core is coated with a compact and continuous silver shell layer, and the preparation method comprises the steps that firstly, under the protection of inert atmosphere, long-chain alkylamine serves as a reducing agent and an end-capping reagent, and the copper nanowire with the high length-diameter ratio is synthesized through a thermal reduction method; and then, a chemical reduction deposition method is adopted, ascorbic acid serves as a reducing agent, a silver salt solution is slowly dropwise added into the copper nanowire dispersion liquid, and in-situ reduction and deposition are conducted on the surface of the copper nanowire to form a uniform silver shell layer. The preparation method effectively solves the problems that the copper core is easy to oxidize and the silver shell layer is discontinuous, and the prepared silver-coated copper nanowire has the characteristics of low cost, high conductivity, high oxidation resistance and excellent dispersity, and is very suitable for preparing a high-performance and flexible transparent conductive film.

The invention belongs to the technical field of automatic planting, and particularly relates to a sprouting vegetable high-quality and high-yield planting system which comprises a planting workshop and an automatic harvesting system connected with the planting workshop, the planting workshop is a closed area, and an annular suspension type assembly line is arranged in the planting workshop; the annular suspension type assembly line is used for suspending and transporting multi-layer plane planting plates for medium-free planting, and a novel mist spraying area and a light supplementing system are arranged on a conveying path of the annular suspension type assembly line. And a temperature / humidity control system and a water purification magnetization system which are communicated with the internal environment of the planting workshop based on a pipeline communication mode are arranged outside the planting workshop. By adopting a mode of combining medium-free cultivation and sports planting and controlling crop growth conditions in the whole process, any harmful residues are completely eradicated, unstable factors and large workload of artificial planting are greatly reduced, standardized production of crops is realized, and the market competitiveness of products is fully improved.

The invention relates to the technical field of coal mine tunnels, in particular to roof cutting equipment for gob-side entry retaining and a roof cutting method.The roof cutting equipment comprises two telescopic main rods, a first bend wheel is arranged at the top of one telescopic main rod, a first guide wheel is arranged at the bottom of one telescopic main rod, and a second bend wheel is arranged at the top of the other telescopic main rod, and a second guide wheel is arranged at the bottom of the other telescopic main rod; the device further comprises a traction mechanism and a rope saw, a driving wheel is arranged on the traction mechanism, the rope saw sequentially bypasses the driving wheel, the first guide wheel, the first bend wheel, the second bend wheel and the second guide wheel to form a ring, the driving wheel is used for driving the rope saw to move circularly, and the traction mechanism can drive the driving wheel to move longitudinally. After the rope saw bypasses the guide wheels and the top plate of the two telescopic main rods, the rope saw forms a U shape, and in the top cutting process, the traction mechanism drives the driving wheel to longitudinally move to provide tensile force for the rope saw, so that the rope saw can gradually form a linear shape from the U shape, and the top plate in a change area from the U shape to the linear shape is cut open by the rope saw to realize top cutting operation.

The invention discloses a triphenylamine gallium porphyrin complex and application of the triphenylamine gallium porphyrin complex as a hole transport layer material. The structure of the complex is shown in the following formula, wherein R represents methoxy, methylthio or hydrogen. The complex has an energy level better matched with a perovskite layer and better intrinsic hole transport characteristics, and under the condition that no chemical doping is needed, a formal (n-i-p) perovskite solar cell prepared from the complex obtains 16.25% of photoelectric conversion efficiency and is comparable with an early-stage doped Spiro-OMeTAD system. The lithium salt and the organic dopant which are easy to absorb moisture and migrate are completely abandoned, so that the problem of device degradation caused by the lithium salt and the organic dopant is radically eliminated, and the long-term stability of the device under hot, wet and running conditions is synchronously and greatly improved; the preparation process is greatly simplified, the process window is obviously widened, the production repeatability and the yield are improved, and by omitting expensive dopants and simplifying production steps and quality control links, the material and process cost is directly reduced, and the industrial application potential is improved.

The utility model discloses an optical lens detection automatic feeding mechanism relates to optical lens detection technical field, including conveying mechanism, the left side of conveying mechanism is provided with detection mechanism, the back of detection mechanism is provided with feeding mechanism for realizing optical lens reciprocating automatic feeding and unloading, and the feeding mechanism includes: reciprocating unit and drive unit, and reciprocating unit sets up at the back of detection mechanism, including frame body, and the top fixed mounting of frame body has installation box, and the top fixed mounting of installation box has a group of slide rails, the top of slide rail is slidably installed a group of slide base, and two slide bases are connected through connecting rod rigidly, and are driven by cylinder and move synchronously. When right side clamping subassembly removes lens to detection platform and carries out detection, left side clamping subassembly can simultaneously take new lens from conveying mechanism or place the lens that has been detected to the collecting box, eliminates the idle stroke waiting time of traditional single mechanical hand, improves work efficiency, avoids the uncontrollability of manual operation.