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423results about How to "Good guiding effect" patented technology

Novel nerve duct bracket and preparation method and application thereof

The invention relates to a novel nerve duct bracket and a preparation method and application thereof. Three-dimensional graphene or graphene derivative multichannel active nanofiber sponge is used asa stuffing inner core, and nanofibers in an axial direction are used as an outer pipe. The preparation method comprises the steps of performing ultrasonic dispersion on graphene or a graphene derivative into spinning liquid, performing electrostatic spinning, and performing drying so as to obtain a nanofiber film; performing shearing, and performing homogenization and crushing so as to obtain broken fiber mixed liquid; pouring the broken fiber mixed liquid into a multichannel mold, and performing freeze drying; performing cross-linked shaping; performing drying and shaping so as to obtain thethree-dimensional graphene or graphene derivative multichannel nanofiber sponge; and performing fixing in an axial direction spinning receiver, and performing axial direction spinning on an outer layer so as to obtain the novel nerve duct bracket. The novel nerve duct bracket is used for inducing repair and regeneration of nerve tissue. The novel nerve duct bracket disclosed by the invention is simple to operate and good in repeatability, and a new thinking is provided for repairing neurological deficits.
Owner:DONGHUA UNIV

Adaptive Levy distribution hybrid mutation improved artificial fish swarm algorithm-based distribution center site selection optimization method

ActiveCN106339770ADiversity guaranteedReduce the possibility of getting stuck in a local optimumForecastingArtificial lifeLocal optimumLogistics management
The invention belongs to the logistics distribution site selection technical field and relates to an adaptive Levy distribution hybrid mutation improved artificial fish swarm algorithm-based distribution center site selection optimization method. The method includes the following steps that: (1) relevant parameters are initialized, and a distribution center site selection optimization model is established; (2) the distribution center site selection optimization model is solved through using the optimization method according to which adaptive Levy distribution hybrid mutation is utilized to improve an artificial fish swarm algorithm; and (3) a distribution center site selection result is compared with the result of using the adaptive Levy distribution hybrid mutation to improve the artificial fish swarm algorithm in solving a distribution center site selection problem. According to the method of the invention, Levy mutation and chaotic mutation are introduced into the basic fish swarm algorithm, so that the diversity of artificial fish states in the basic artificial fish swarm algorithm can be increased, the capability of the basic artificial fish swarm algorithm to jump out of local optimum can be improved, and the optimization of distribution center site selection can be enhanced.
Owner:TIANJIN UNIV OF COMMERCE

Solar energy spike synchronization control method

The invention discloses a solar energy spike synchronization control method that uses the time service function of a geosynchronous positioning satellite, the solar energy synchronization spikes and the same time source to conduct synchronous working control on the solar energy synchronization spikes installed discretely. The solar energy synchronization spike comprises a shell, a solar cell, an accumulator battery, a charge-discharge on-off control circuit, a miniature satellite receiving antenna, a satellite receiving module, a microprocessor and an electroluminescent device. After receiving a time service signal of the geosynchronous positioning satellite, the miniature satellite receiving antenna analyzes and extracts time information and second synchronizing information through the satellite receiving module. After receiving a second synchronizing signal offered by the satellite receiving module, the microprocessor controls the synchronous turn-on and turn-off of the electroluminescent device according to preset flicker frequency and flicker duty ratio. Using synchronizing time to conduct synchronous working control on the solar energy spikes, the control method is not limited by factors such as the length and trend of roads, and is simple and convenient in implementation and reliable in control.
Owner:陈卫

Impurity-removing carding device for rotor spinning machine

The invention discloses an impurity-removing carding device for a rotor spinning machine. The device comprises a shell and a carding roller, the shell is provided with a fiber transporting channel, a feeding channel and an impurity removing channel, the impurity removing channel comprises an impurity inlet and an impurity outlet, the impurity removing channel is internally provided with a spreader plate making the impurity removing channel divided into an air current channel and an impurity air current channel, on end of the spreader plate is located at the impurity inlet, the impurity inlet is divided into an air current channel outlet and an impurity air current channel inlet, the other end of the spreader plate is located at the impurity outlet, and the impurity outlet is divided into an air current channel inlet and an impurity air current channel outlet; card clothing is laid on the surface of the spreader plate, and the card clothing comprises sharp teeth arranged in the direction facing the impurity outlet. The size of the air flow channel is adjusted, so that the size of an air current is controlled, and the phenomenon that impurities low in density are brought back into a carding cavity by an air replenishment air current is prevented; in this way, the carding effect is improved, and the phenomenon that the quality of yarn spun through the next few steps is lowered is prevented.
Owner:ZHEJIANG SCI-TECH UNIV

Image denoising method, system and device based on transfer learning and medium

The invention discloses an image denoising method, system and device based on transfer learning, and a medium. The method comprises the steps: obtaining a to-be-denoised image; inputting the to-be-denoised image into a pre-trained denoising neural network based on transfer learning to be processed, wherein the denoising neural network based on transfer learning comprises a main denoising network and a noise distribution information extraction network; wherein the noise distribution information extraction network is used for extracting random noise distribution characteristics; preprocessing the random noise distribution characteristics, taking the preprocessed random noise distribution characteristics as dynamic normalization parameters of each residual module of the main noise reduction network, migrating the random noise distribution characteristics into data characteristics of the main noise reduction network, and accelerating the convergence rate of the main network; normalizing the image features extracted by each residual module of the main noise reduction network by using the dynamic normalization parameters, and outputting a pure noise image by the main noise reduction network; and carrying out difference processing on the pure noise image and the to-be-denoised image to obtain a denoised image.
Owner:SHANDONG UNIV

Nuclear reactor direct safety injection system

The invention discloses a nuclear reactor direct safety injection system which is used for directly offering cooling liquid to a pressure container in a nuclear reactor, wherein a hanging basket is arranged inside the pressure container; a nuclear reactor core is arranged inside the hanging basket; an annular cavity is formed between the pressure container and the hanging basket; the safety injection system comprises a safety injection cold source and a direct safety injection tube; the direct safety injection tube has an inlet and an outlet; the inlet is communicated with the safety injection cold source; the direct safety injection tube penetrates into the pressure container and extends into the annular cavity, and the outlet is formed below the nuclear reactor core. Since the direct safety injection tube penetrates into the pressure container and extends into the annular cavity, and the outlet is formed just below the nuclear reactor core, when loss of coolant accident occurs, the cooling liquid can be directly conveyed into the nuclear reactor core by virtue of the direct safety injection tube, so as to cool and boronize the nuclear reactor core timely and effectively, greatly improve the capacity of controlling and relieving accidents and effectively prevent the loss of coolant accident from developing to a hyper design basis accident.
Owner:CHINA NUCLEAR POWER TECH RES INST CO LTD +2

Surface dedusting wire take-up device for electric power

The invention discloses a surface dedusting wire take-up device for electric power. The surface dedusting wire take-up device comprises a base, a cable guide mechanism and a wire take-up mechanism; the upper portion an the lower portion of the inner side of the base are separately provided with a driving cavity and a dedusting cavity, the top portion of the base is provided with a vertical pipe, aplurality of dedusting holes are formed in the vertical pipe, the top portion of the base is provided with a support plate on the vertical pipe, the upper side of the support plate is provided with the wire take-up mechanism on the vertical pipe in an inserted mode, and the lower end of the vertical pipe extends into the dedusting cavity; a negative pressure machine and a drive motor are arrangedin the driving cavity, the negative pressure machine communicates with the dedusting cavity through a communicating channel, an outlet shaft of the drive motor is provided with a driving gear, and the driving gear is connected with a driven gear installed on the vertical pipe in a meshed mode; and the base is further provided with an adjustable telescopic rod, and the upper end of the telescopicrod is provided with a cable guide mechanism. The surface dedusting wire take-up device for the electric power is good in wire take-up effect and easy to install and replace, and further has synchronous dedusting effect during wire take-up to facilitate promotion.
Owner:宁波市江北义盈工贸有限公司
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