18results about How to "Efficient import" patented technology

The invention discloses an evanescent field driven miniature light wave actuator and a method. The actuator comprises a micro-nanofiber, a polymer fiber and a light source, the polymer fiber is in contact connection with one end of the micro-nanofiber, and the light source is arranged at the other end of the micro-nanofiber; the micro-nano optical fiber is a single-cone type micro-nano optical fiber, the single-cone type micro-nano optical fiber comprises a micro-nano optical fiber cone area located in the middle, a micro-nano optical fiber waist area located at one end and a micro-nano optical fiber tail fiber located at the other end, the polymer fiber is in contact connection with the outer surface of the micro-nano optical fiber waist area, and the light source is arranged near the tail end of the micro-nano optical fiber tail fiber. The principle of the method is that an evanescent field is generated around a micro-nano optical fiber waist region during light transmission, the temperature is raised under the action of a photo-thermal conversion material, and bending deformation of the actuator is caused due to the fact that thermal expansion coefficients of polymer fibers and the micro-nano optical fiber waist region are different. The method has the advantages of being high in controllability, high in response speed and the like, and can be conveniently applied to the fields of deep sea detection, miniature soft robots, in-vivo diagnosis and treatment and the like.

The invention belongs to the technical field of medicines, provides an in-situ bubble generation hyaluronic acid composition for ultrasonic introduction and a patch thereof, and relates to the hyaluronic acid composition, a method for preparing and introducing the patch from the composition and an ultrasonic introduction method. The hyaluronic acid composition comprises the following raw materials: hyaluronic acid, a foaming agent and a penetration enhancer, the preparation method of the lead-in patch comprises the steps of mixing the components and applying. The ultrasonic leading-in method comprises the steps of setting ultrasonic leading-in instrument parameters and leading-in time, and carrying out specific ultrasonic leading-in operation. According to the ultrasonic introduction mode, bubbles are generated in situ, the efficiency is higher than that of pure ultrasonic introduction, and the concentration of hyaluronic acid in the articular cavity can be rapidly increased. Compared with hyaluronic acid injection administration, the administration technology is noninvasive, painless, good in clinical compliance, simple and convenient to operate and low in cost; compared with oral administration of hyaluronic acid, the composition has the advantages of good directionality, accurate and controllable action range and small gastrointestinal irritation.

The invention discloses an on-ramp vehicle afflux strategy generation method and device, equipment and a medium, and relates to the field of intelligent traffic, and the method comprises the steps: obtaining preset traffic data, determining a state space set and an action space set based on the preset traffic data, and constructing a deep reinforcement learning model; the deep reinforcement learning model comprises a strategy network and a value network; for a current state in the state space set, generating a probability corresponding to each executable action in the action space set by using the current strategy network, and determining a current state action pair based on the executable action with the highest probability; and determining a current expected return of the current state action pair according to the current value network, training the current strategy network and the current value network based on the current expected return until the strategy network parameters and the value network parameters meet preset stable conditions, and determining a corresponding on-ramp vehicle afflux strategy based on the latest current strategy network. And performing corresponding vehicle confluence control by using the on-ramp vehicle confluence strategy.

A reciprocating razor net beneficial to hair entry, comprising a net body, wherein a plurality of curved hair entry grooves are arranged on the net body, the hair entry grooves are open on both sides, the width of the first end of the hair entry grooves gradually decreases from outside to inside, and the width of the second end of the hair entry grooves gradually expands and then gradually decreases from outside to inside. The utility model realizes the function of combing and guiding hair, improves shaving efficiency, reduces shaving friction, improves the fitting degree of the net and the shaving comfort.

An additive topological design optimization method comprises the following steps that a structural model of a part to be optimized is established, and topological optimization, geometric reconstruction and automatic grid division are conducted on the structural model; a rigidity description parameter, a strength description parameter and a process forming quality description parameter are calculated respectively, inspection is carried out according to a given inspection standard, optimization iteration is carried out again when the inspection standard is not met until the inspection standard is met, and an optimization model is obtained; and finally, outputting the optimization model as a data format required by additive manufacturing pretreatment. According to the method, the efficiency of additive design optimization can be achieved, labor hours are reduced, and automatic processing is facilitated. The invention further provides a computing device.

The present invention discloses a data retrieval method, device, electronic device and storage medium, the method comprising: when a trigger operation of storing data in a target file into a database is detected, a target header file is determined from a file set including header files according to the column header information of the target file; a target column header to be read is determined according to the column header information and the predefined column header in the target header file, and the column index information corresponding to the target column header in the target file and the target attribute name corresponding to the column index information are determined; for the row data in the target file, the current row data is read in sequence according to the index information, and the column data in the current row data and the target attribute name are stored in a reusable component in correspondence; based on the reusable components corresponding to each row data, a data set is generated and stored in a database. The technical solution of the embodiment of the present invention realizes the technical effect of quickly and conveniently storing the data in the target file into a database.

The invention discloses a data file import method and device, a program product and electronic equipment, and relates to the field of financial science and technology or other related fields, and the import method comprises the steps of obtaining an application file of a target application, processing the application file to obtain a plurality of texts, creating a data job for each text, and creating a data job for each text; and asynchronously executing the data operation by adopting the distributed nodes, and importing the text into a preset data table in a preset database. According to the method and the device, the technical problem that the speed of importing the data file is relatively low in the prior art is solved.

The application discloses a flexible optical fiber based on liquid crystal elastomer and a preparation method and an actuating application device thereof. The flexible optical fiber based on liquid crystal elastomer comprises a liquid crystal elastomer core and a transparent elastomer cladding; the liquid crystal elastomer core comprises liquid crystal elastomer and light-responsive material. The preparation method injects a precursor of liquid crystal elastomer and a precursor of transparent elastomer into an inner barrel and an outer barrel of coaxial double barrels respectively, extrudes or prints a columnar body with a core-cladding structure through an extrusion method or a 3D printing method, and solidifies to obtain the flexible optical fiber. The actuating application device comprises a light source, a quartz optical fiber and the flexible optical fiber based on liquid crystal elastomer. The flexible optical fiber based on liquid crystal elastomer can construct a photo-driven device achieving full fiberization, integrates photo-actuation and optical transmission functions, effectively reduces the volume of a traditional actuating device, further realizes real-time, in-situ, remote and accurate actuation, and improves the practicability of the photo-driven device.

The utility model relates to the technical field of paper product processing, in particular to a rolling device for paper product production, which comprises a frame, a conveying component, a leading-in component and a tensioning component, the conveying component is arranged on the frame, the leading-in component is arranged on the conveying component, and the tensioning component is arranged on the frame relative to the leading-in component; the guide-in assembly comprises a guide-in roller and a guide-in adjusting element, the guide-in adjusting element is used for adjusting the guide-in roller, the tensioning assembly comprises a tensioning roller and a tensioning adjusting element, and the tensioning adjusting element is used for adjusting the tensioning roller; the paper products on the conveying assembly are guided in through the guiding-in roller, so that the paper products on the guiding-in assembly are rolled by the tensioning roller, efficient and stable guiding-in of the paper products is achieved through the guiding-in assembly and the tensioning assembly, and through the guiding-in adjusting element and the tensioning adjusting element, the paper products can be conveyed to the conveying assembly. The flexibility is enhanced, it is ensured that the guide-in roller and tensioning are finely adjusted according to the thicknesses of different paper products, accurate guide-in and accurate rolling are achieved, the production efficiency is improved, the quality and stability of the products are guaranteed, and practicability is high.

The present invention provides a retinal or choroidal electrical transgenic stimulator containing a flexible electrode and its application, wherein the flexible electrode comprises a flexible substrate, the flexible substrate has a concave portion, and a metal electrode layer is formed on at least the inner wall of the concave portion of the flexible substrate. The flexible electrode of the present invention can be used to simply and efficiently introduce genes into specific parts of the retina or choroid, can achieve accurate positioning and quantitative transgenic, will not cause damage to extraocular tissues, and has the advantages of low invasiveness, convenient and safe operation, low manufacturing cost, and easy large-scale production.

The utility model provides a charging pile. Relates to the technical field of charging equipment. The charging pile comprises a charging gun, a first shell, a second shell, a first circuit board located in the first shell and a second circuit board located in the second shell. A part of the plurality of power devices are positioned in the first shell and are fixed on the first circuit board, and the other part of the plurality of power devices are positioned in the second shell and are fixed on the second circuit board; the side, away from the first shell, of the second shell is used for being hung on the bearing piece. The plurality of power devices are electrically connected to form a power conversion circuit, and the charging gun is electrically connected with the output end of the power conversion circuit; the first shell is connected with the second shell, and an air duct is arranged between the first shell and the second shell; the air conditioner further comprises a fan and an air opening, the arrangement direction of the fan and the air opening is perpendicular to the arrangement direction of the first shell and the second shell, the air channel is located between the fan and the air opening, and the fan faces the air channel. The charging pile can meet the heat dissipation requirement of the charging pile with high-density layout.

Provided is a novel vector peptide fragment having cell membrane permeability. A vector peptide fragment according to the present invention comprises an amino acid sequence satisfying any of the following conditions: (i) the following amino acid sequence in which the amino acid residues at positions 8 and 9 from the N-terminal side of KKRTLRKSNRKKR (SEQ ID NO: 1) are each substituted with an aspartic acid residue or a glutamic acid residue; and (ii) one to six aspartic acid residues and / or glutamic acid residues inserted between the ninth and tenth amino acid residues from the N-terminal side of the amino acid sequence satisfying the condition (i).

The application relates to the technical field of vehicles, in particular to a vehicle alternate passing prompting method, device, equipment, medium and program, wherein the method comprises the following steps: acquiring positioning data, driving data and vehicle identification of all vehicles on an alternate passing section at a ramp merging intersection; determining a passing number of each vehicle according to the positioning data and the driving data, and issuing the passing number to a corresponding target vehicle according to the vehicle identification; identifying a vehicle speed at a ramp entering time of the target vehicle, a vehicle speed and a relative position of a vehicle on a lane adjacent to the target vehicle at the intersection; and dynamically updating the passing number issued to an intelligent terminal of the target vehicle according to the vehicle speed and the relative position until the vehicle completes a driving-off operation on the alternate passing section. Thus, the problems that, in the related art, vehicles do not alternate passing according to traffic rules when merging into ramps, leading to congestion or accidents, reducing traffic efficiency and causing poor user experience are solved.

The utility model relates to the technical field of optical couplers, in particular to a light guide structure of an optical coupler. According to the technical scheme of the utility model, the light guide member used for guiding the light emitted by the IR chip to the light-sensitive surface of the PT chip is arranged between the PT chip and the IR chip, so that part of the light emitted by the IR chip can be efficiently guided to the light-sensitive surface of the PT chip, and the efficiency of transmitting the light of the IR chip to the light-sensitive surface of the PT chip as a whole can be improved. The stability of optical signal transmission between the PT chip and the IR chip is ensured, the light guide piece is a rigid transparent body with two fixed ends, and the surface of the light guide piece is coated with a layer of titanium dioxide as a first reflecting layer, so that guide propagation of light can be realized, relative fixation of the PT chip and the IR chip can also be realized, and the stability of optical signal transmission between the PT chip and the IR chip is ensured. The yield of the product in the production process is improved; the planar optical coupler solves the problem that an existing planar optical coupler is low in optical signal transmission efficiency in the optical signal transmission process.

A hydraulic shovel (1) is provided with: a cooling fan (8A); a heat exchanger (21) to which the cooling air from the cooling fan (8A) is supplied; an air-conditioning device (24) provided inside the operation cabin (10); and an outside air introduction duct (25) for introducing outside air to the air conditioning device (24). The outside air intake port (25B) of the outside air introduction duct (25) opens toward the upstream side of the flow of the cooling air within the heat exchanger chamber (23) into which the cooling air supplied to the heat exchanger (21) flows.

The application discloses a sawing machine device for processing vehicle metal parts, and belongs to the technical field of sawing machines, which comprises a sawing machine base, a sawing machine frame arranged on the sawing machine base, saw blade hubs arranged at two ends of the sawing machine frame, saw conditions used in cooperation with the saw blade hubs to support two ends of the saw conditions and drive the saw conditions to rotate, guide rail plates arranged on the sawing machine frame to provide a guide path for the saw conditions, first guide columns and second guide columns which jointly provide guide support for the saw conditions, clamping mechanisms used for clamping parts to be processed, cooling liquid pipes which extend from lower parts of the second guide columns and have nozzle ends located directly above the saw conditions, and cooling and temperature-lowering components arranged on a section of the circumferential side of the saw conditions between the second guide columns and the parts to be processed and used for guiding cooling liquid sprayed from the cooling liquid pipes to flow along a sawing direction of the saw conditions to the parts to be processed. The application fully wets a contact surface of saw teeth and a workpiece, and significantly improves heat dissipation efficiency.

The application relates to an anti-static system for a semiconductor clean room, relates to the technical field of clean room engineering, and aims to reduce the influence of static electricity discharge on chip manufacturing in the semiconductor clean room. The anti-static system for the semiconductor clean room comprises a support frame, a plurality of groups of support rods for conducting ground arranged at the bottom of the support frame, an anti-static floor laid in the support frame, an anti-static floor slab laid at the ends of all the support rods away from the support frame, and a moisture-proof isolation layer arranged on the side wall of the anti-static floor slab; and an anti-static wall plate is arranged around the outer peripheral wall of the support frame. The application has the effect of reducing static electricity in the clean room.

The invention provides a soft package support injection mold with a cooling circulation optimization structure. The soft package support injection mold with the cooling circulation optimization structure comprises a lower side supporting plate, the upper side of the lower side supporting plate is fixedly connected with a center supporting rod, the end, away from the lower side supporting plate, of the center supporting rod is fixedly connected with a lower mold plate, and the upper end of the lower mold plate is fixedly connected with a mold rod and an upper mold plate; the upper mold plate is in sliding connection with the mold rod, and mold holes corresponding to the mold rod in position are formed in the upper mold plate. According to the soft package support injection mold with the cooling circulation optimization structure, a plurality of heat dissipation holes are formed in the lower side supporting plate and the upper mold plate, and the cooling pipeline optimization structure is designed, so that the cooling effect is effectively improved, and the problem of cooling pipeline blockage or corrosion is avoided; and it is ensured that the mold can still maintain good cooling efficiency under high-frequency use, and the overheating risk is reduced.