22results about How to "Code of Practice" patented technology

This invention pertains to surface-enhanced Raman scattering (SERS) detection technology, specifically disclosing a signal-squeezing SERS detection method for achieving quantitative analysis over an ultra-wide concentration range. It utilizes two-dimensional transition metal phosphorus-sulfur compounds with structural differences as the SERS substrate, modifying them through mechanical strain and chemical modification to enhance their sensitivity to specific and continuous concentration ranges. For each substrate, three parameters—characteristic peak intensity, signal-to-noise ratio (SNR), and detection probability—are extracted to construct a three-parameter calibration radar map for the corresponding concentration range. During detection, the three-parameter vector of the analyte at an unknown concentration is projected onto the three-parameter calibration radar map. Using the signal "squeezing" principle, the concentration level is determined by the triangular region formed by the analyte and the known concentration vector. This invention overcomes the bottleneck of narrow concentration range detection with a single SERS substrate, achieving a detection range of 10... ‑6 -10 ‑22 M offers precise quantitative detection over an ultra-wide concentration range, is easy to operate, and provides reliable results, making it a promising candidate for applications in fields such as biosensing, medical diagnostics, and environmental analysis.

The invention belongs to the technical field of agriculture, and provides an artificial feed and a method for testing the influence of the artificial feed on the growth and development of tomato leaf miners, the method comprises three artificial feed formulas, and standardized feed blocks are prepared through moist heat sterilization and low-temperature preservation. The method comprises the following steps: subpackaging feed by adopting finger-shaped tubes, inoculating according to the density of 3 larvae in each tube, feeding at 25 + / -1 DEG C, and measuring indexes such as the duration, the survival rate, the pupation rate and the eclosion rate of the larvae. Results show that the difference between the formula I and natural foodstuff is minimum, the larva survival rate, pupation rate, pupa weight, eclosion rate and hatching rate are not obviously different from those of natural tomato leaf feeding, and although the larva and pupa duration is prolonged and the single female egg laying amount is reduced, the complete life history of tomato leaf miners can still be supported. According to the method, indoor stable test insects with consistent physiological status are realized, and reliable insect source guarantee is provided for biological research and prevention and control technology development of the tomato leaf miner.

The invention relates to the technical field of ammonium nitrate fuel oil explosives, in particular to a method for judging the anti-blocking capacity of a modified ammonium nitrate fuel oil explosive and application of the method. The evaluation method comprises the following steps: loading explosive powder to be detected into a container; vertically pressing a heavy object into the container and completely acting on the to-be-tested explosive powder, so that the to-be-tested explosive powder bears a fixed pressure intensity to form a compacted grain; placing the container filled with the compacted grain in a constant temperature box with a preset temperature for heat preservation; the compacted grain is taken out and placed on a measuring instrument to be subjected to a compression test till the grain is crushed; and recording the maximum force value required for crushing and compacting the grain, and taking the maximum force value as the basis for judging the anti-caking capability of the modified ammonium nitrate fuel oil explosive, so that the larger the maximum force value is, the weaker the anti-caking capability is. The invention also provides application of the method. The crushing force value data obtained by the evaluation method is used for screening anti-caking additives, evaluating the anti-caking performance of different modified ammonium nitrate fuel oil explosives and the like. The problem that the modified ammonium nitrate fuel oil explosive series product lacks a scientific and quantitative evaluation method is solved.

The utility model provides a kind of radioactive contamination dynamic boundary prediction device, belong to nuclear science and technology field, to solve the detection of direct use Geiger counter, leading to the inaccuracy of the detection result of Geiger counter, influence the accuracy of radioactive contamination boundary prediction problem, including Geiger counter main part, control knob, detection holding frame, detection head, dustproof driving mechanism and operation warning mechanism;The control knob is rotationally connected above the Geiger counter main part;The detection holding frame is fixedly connected above the Geiger counter main part;The detection head is fixedly connected above the detection holding frame;The dust cover is rotationally connected at the front end of detection holding frame, and the dust cover is arranged at the front end of detection head;The dustproof driving mechanism is arranged outside the detection holding frame;The operation warning mechanism is arranged above the Geiger counter main part, standardizes the operation procedure of worker, guarantees the accuracy of radioactive contamination detection result.

This invention discloses a large-area uniform coating control method based on a dynamic-static combined optimization strategy. Addressing the technical problems of uneven film thickness and poor film consistency in existing large-area coating processes, this method combines the dynamic movement mode of the coating target with the static positioning optimization of the substrate and the precise control of static parameters of the coating environment to construct a dynamic-static synergistic coating control system. Simultaneously, it introduces strategies such as zoned coating compensation, real-time film thickness monitoring feedback, and dynamic adaptation of motion trajectory to achieve uniform deposition of coating materials on the surface of large-area substrates, effectively improving the film thickness consistency, film uniformity, and film performance stability of large-area coatings. This method is convenient to operate, provides precise control, and is compatible with various coating processes such as magnetron sputtering, vacuum evaporation, and ion plating. It can be widely applied to large-area coating production in fields such as flat panel displays, photovoltaic glass, semiconductor wafers, and large-area optical devices.

This invention discloses a brewing method for "Lanzhongyin" craft beer, possessing a unique flavor, belonging to the field of beer brewing technology. This method uses water, Australian barley malt, Australian wheat malt, and oat flakes as base ingredients, combined with liquid yeast and imported hops. It emphasizes the addition of bitter orange peel and coriander seeds as flavor modifiers. Through optimized processes such as saccharification, boiling, fermentation, and aging, the refreshing fruity aroma of bitter orange peel and the unique spiciness of coriander seeds are deeply integrated, solving the technical problems of existing craft beers having a single flavor profile and insufficient complexity. The "Lanzhongyin" craft beer brewed by this invention has a refreshing and smooth taste, combining the richness of malt, the delicate aroma of hops, and the unique complex flavor brought by bitter orange peel and coriander seeds. It has high flavor recognition, a simple and controllable process, is suitable for large-scale production, and enhances the product's market competitiveness.

This invention discloses a method and apparatus for identifying potential hazards and violations in explosive-related videos, relating to the field of blasting construction. The method includes: S1 constructing a video authenticity detection model, a video target recognition model, and an identity recognition model; S2 constructing a labeled database and a facial information database; S3 training and optimizing the video target recognition model and the identity recognition model; S4 acquiring explosive-related videos; S5 performing authenticity analysis on the explosive-related videos, identifying relevant information about blasting operations, and identifying information about blasting operators; S6 analyzing potential hazards and violations in the blasting videos. The explosive-related videos are analyzed using the video authenticity detection model, the optimized video target recognition model, and the optimized identity recognition model to determine the authenticity of the videos, relevant operational information during the blasting process, and information about the operators. Based on these analysis results, it is determined whether there are safety hazards in the operational process, thus standardizing the operations of the personnel.

The utility model relates to the technical field of plastic pipe hot melting butt joint, in particular to a plastic pipe head heater which comprises a working table, a hot melting device used for heating a plastic pipe is movably installed on the top of the working table, two bases are symmetrically installed on the top of the working table, and rotating cover plates are movably installed on the tops of the bases. Semi-circular through holes which are matched with the plastic pipe in a sliding and clamping mode are formed in the ends, close to each other, of the base and the rotary cover plate in a penetrating mode, the telescopic end of an electric push rod is fixedly installed on the outer side of the hot melting device, and the output end of a motor is fixedly installed on the outer side of the rotary cover plate. The butt joint effect of the plastic pipes is improved, operation is more standard, in the prior art, the heated plastic pipes need to be pulled out and then bypass the hot melting device to be in butt joint, the hot melting device of the heater actively withdraws, butt joint time is saved, the temperature of the plastic pipes is reduced little during butt joint, and the plastic pipes are firmer after butt joint.

The invention belongs to the technical field of plant tissue culture, and discloses a Paeonia fulva tissue culture and rapid propagation method for inducing cluster buds by using immature embryos, which comprises the following steps: collecting fresh seeds at a specific development stage, sterilizing, and stripping embryos aseptically; inoculating the embryos into a germination culture medium containing 6-BA, IAA and GA3 to start culture; after radicle tail ends of the germinating embryos are cut off, the embryos are directionally inoculated to a subculture medium according to the original polarity, and sterile seedlings are obtained; transferring the seedlings into an induction culture medium containing 6-BA, IAA and charcoal to induce cluster buds, and further proliferating; cutting robust tender shoots, removing cotyledons, and inoculating into a rooting culture medium containing IBA (indolebutyric acid), NAA (naphthylacetic acid) and charcoal to induce rooting; and finally, carrying out strong seedling culture and domestication transplanting to obtain a survived plant. According to the method, the deep dormancy obstacle of the seeds is broken through, efficient and stable regeneration from embryos to seedlings is achieved, the breeding cycle is short, the rooting and transplanting survival rate is high, and the method is suitable for large-scale protection and production of rare resources.

The application discloses a kind of construction methods of mouse placenta targeted gene interference model and its application.The method comprises the following steps: first, pregnant mouse is anaesthetized and abdominal operation is carried out, and the uterus containing placenta is exposed;Then, the adeno-associated virus carrying gene interference element is directly injected into target placental tissue;Finally, the wound is sutured to complete model construction.The present application overcomes the problem of low virus delivery efficiency caused by maternal-fetal barrier by intraoperative direct site injection, and realizes the efficient and specific gene interference of placental tissue.The model constructed is targeted and precise, has high interference efficiency and low off-target effect, and provides an effective tool for studying placental gene function and pregnancy-related diseases.

The utility model relates to medical equipment technical field discloses an ear cap detection structure and ear thermometer for ear thermometer, including probe body, ear cap and PCB assembly, ear cap detachably sets up and assembles in the outside of probe body, PCB assembly and ear cap are intervally arranged, and are equipped with PCB button on the PCB assembly, and are equipped with detection assembly between ear cap and PCB button, push detection assembly contact PCB button through installing ear cap on probe body, and then realize the opening of PCB assembly, or through the ear cap is detached from probe body, to make detection assembly reset and far away from PCB button, and then realize the closing of PCB assembly. Introduce the effective detection mechanism whether ear cap is installed correctly, can promote the temperature measurement accuracy, avoid cross infection, and optimize user experience, to solve the existing ear thermometer, possibly lead to temperature measurement operation not standard, the measurement accuracy is influenced or equipment can not start and stop in time, influence use efficiency and reliability technical problem.

The application discloses a kind of based on disassembling component decomposition and combination service process dynamic assembly method, according to each maintenance service demand, the method for dynamically generating this maintenance service process.Its operation includes service model dynamic creation, process dynamic assembly.It specifically includes node object initialization step;Register object service fragment step;Initialization service boundary step;Explicitly listen to the rule of each object step;Explicit dynamic process arrangement rule step;Process output step;And configuration form data step.The application provides a kind of service process dynamic assembly method, to reduce the dependence on artificial when product maintenance service, to reduce cost, reduce complexity, improve efficiency.

The invention discloses a knee joint effusion extraction instrument and an operation method, and belongs to the technical field of effusion extraction devices. The auxiliary piece is connected with the main body piece and the knee joint and is connected with a traditional Chinese medicine patch; the main body piece comprises a shell, and an extraction channel is formed in the shell; a limiting piece is arranged in the extraction channel, and the limiting piece limits the moving position of the extraction piece; through cooperation of the auxiliary part and the main part, stable supporting and guiding are provided for the puncture process.

The invention belongs to the technical field of insect feeding, and particularly relates to semi-artificial feed and an artificial feeding method for multihole transverse gallosoma elegans. The semi-artificial feed for the rhynchophorus multifortunei, provided by the invention, is prepared from fraxinus chinensis phloem powder, fraxinus chinensis xylem sapwood powder, soybean meal, cane sugar, agar, cholesterol, Webster salt, potassium sorbate, methyl p-hydroxybenzoate, compound vitamin B and distilled water according to a specific weight part ratio. The artificial feeding method comprises the whole processes of adult collection, egg laying induction, egg incubation, single larva feeding, pupa management and adult polyculture. The feed disclosed by the invention is comprehensive and balanced in nutrition, can fully meet the requirement of the whole life history of the multihole transverse gallosopterus, remarkably improves the survival rate of larvae and the eclosion rate of adults, realizes large-scale standardized feeding, and provides a stable insect source for research on pest control.

The invention provides a high-efficiency expression method of a Chlamydomonas reinhardtii HydA2 protein. The high-efficiency expression method comprises the following steps: constructing a pET-32a-TEV-HydA2 recombinant expression vector; obtaining a positive recombinant strain; carrying out induced expression on the Chlamydomonas reinhardtii HydA2 protein; and purifying the Chlamydomonas reinhardtii HydA2 protein. The invention also provides a crystallization method of the chlamydomonas reinhardtii HydA2 protein, and the chlamydomonas reinhardtii HydA2 protein prepared by the method is used as a raw material. A pET-32a vector is transformed through homologous recombination, a pET-32a-TEV expression system is constructed, and escherichia coli expression, induction and purification are combined, so that efficient soluble expression and activity retention of the chlamydomonas reinhardtii HydA2 protein are realized, the problems that the chlamydomonas reinhardtii HydA2 protein is easy to fold mistakenly, the activity is lost and the expression quantity is low due to oxygen sensitivity are solved, an effective crystallization system is established, and the chlamydomonas reinhardtii HydA2 protein is obtained. And a foundation is laid for structural analysis and hydrogen production research of green algae.

The invention relates to the technical field of quartz machining, and discloses a feeding and discharging auxiliary device for quartz machining, which comprises a lifting track, a mechanical arm, a feeding belt, a placing platform, a framework and a feeding device, the mechanical arm is fixed right above the lifting track, the framework is fixed at one end of the lifting track, the feeding belt is mounted on the surface of the framework, and the placing platform is arranged on the feeding device. The placing platform is arranged at the end, away from the lifting track, of the feeding belt, the feeding device is arranged on one side of the lifting track and comprises a supporting plate, the supporting plate is in sliding connection with the lifting track, and one end of the supporting plate is rotationally connected with a circular shaft. According to the automatic clamping and lifting conveying device, the quartz ring material does not need to be manually carried to the to-be-cut area of the lathe from the ground, automatic clamping and lifting conveying of quartz to be machined are achieved through the servo motor, the round rod, the traction belt, the clamping plate, the air cylinder, the hydraulic rod and other structures, the manual participation degree can be effectively reduced, physical output of manual carrying is reduced, and the working efficiency of the feeding link is remarkably improved.

The invention provides a mineral embedding state analysis method, and relates to the technical field of mineral processing and geological test analysis. According to the method, by simulating the ore grinding process, embedding state data under different ore grinding depths are obtained in a layered mode, errors are corrected through a mathematical model, and therefore the embedding state analysis process of target mineral refinement under the ore macroscopic condition is constructed. The method is standard in operation and high in data comparability, stipulates a whole set of standardized process from representative sample selection, marker positioning, precise layered grinding to automatic mineralogical analysis, ensures the consistency and repeatability of test results among different samples, different batches and different operators, and is suitable for large-scale popularization and application. And reliable technical support is provided for mineral processing research and industrial production.

The invention relates to an optimized laying method for offshore marine fishery resource gill net investigation, and belongs to the technical field of marine fishery resource investigation. The technical problems that in existing gill net investigation, the capture accumulation effect is obvious, variety coverage is incomplete, the fishing harvesting rate is low, and the data standardization degree is low are solved. According to the method, a laying mode (4h * 3) that the total time length is 12 h and each time period is divided into 4 h is adopted, the fishing harvesting rate can be remarkably increased, the coverage degree of the types of the fishery resources in the investigated water area is enhanced, community structure composition is truly reflected, a scientific and feasible technical scheme is provided for standardization of offshore marine fishery resource investigation, and the method is suitable for popularization and application. The method is suitable for survey work of fishery resources in Laizhou bay and sea areas such as near-shore shallow sea of similar temperate zones, marine ranching demonstration areas and the like.

The invention provides a method for detecting a specific IgG antibody in SD rat serum, and belongs to the technical field of biological detection. The detection method special for the SD rat serum sample is established, the operation process is standard, the result is stable and reliable, matrix interference can be effectively eliminated, and specific recognition and detection of a target antibody are achieved; the application of the method provides key technical support for preclinical efficacy and immunogenicity evaluation of related biopharmacy, significantly improves the accuracy and comparability of experimental data, and has positive significance in promoting the research and development process of drugs.

The utility model discloses a digital indicating scale calibrating device, relates to the technical field of metrological calibration equipment, and is used for solving the problem that the efficiency is influenced due to troublesome number input when a digital indicating scale is calibrated. The digital indicating scale calibrating device comprises a bearing platform and a weight box. A digital indication scale placement area, a code scanning area, a weight storage area and a data acquisition and processing system are formed on the bearing table, the code scanning area is located in the digital indication scale placement area, a two-dimensional code or a bar code for scanning is formed on the bottom surface of a digital indication scale to be detected, and the code scanning area is arranged corresponding to the two-dimensional code or the bar code; the weight box is placed in the weight storage area of the bearing table, and weights are placed in the weight box. The code scanning area is matched with the two-dimensional code or the bar code on the bottom surface of the to-be-detected digital indication scale, so that the information of the digital indication scale can be conveniently and quickly input.

The invention relates to the technical field of cigarette measuring equipment, and particularly discloses a measuring plate for a cigarette filter stick and a detection method, and the measuring plate for the cigarette filter stick comprises a plate body, a measuring module and a timing module. A plurality of measuring grooves are arranged, and a plurality of groups of comparison reference lines are arranged in the plurality of measuring grooves, so that cigarette filter sticks with different length specifications can be quickly compared and measured, and the stability of the length quality of the cigarette filter sticks can be quickly judged; a single measuring groove is arranged, so that the length of a single cigarette filter stick can be accurately measured; moreover, the circumference scale area is arranged, so that the cigarette filter sticks with different diameters can be measured, and the purpose of high-precision detection is achieved; and the timing module is arranged, so that accurate self-inspection can be performed according to self-inspection duration. According to the invention, the function integration of multi-length comparison, single-length accurate measurement, multi-specification circumference detection and self-inspection timing of the cigarette filter sticks is realized, the measurement precision is high, the detection efficiency is improved by more than 60%, and the device is suitable for efficient quality self-inspection of a cigarette filter stick production field.