38results about How to "Efficient screening" patented technology

This application provides a method, system, medium, and equipment for detecting thermal hazards in tunnels, relating to the field of tunnel safety detection. The method includes: acquiring geological feature data of the target tunnel; identifying a group of thermal hazard parameters with a correlation greater than a set threshold; setting a quantitative scoring range based on this; using the analytic hierarchy process (AHP) to assign weights and calculate hazard scores; then, combining relevant data to establish a dataset and training a lightweight gradient boosting model; finally, inputting data from an unexcavated tunnel section into the model to output the thermal hazard level. This application, by acquiring geological feature data, can accurately understand the environment, screen key parameters to eliminate redundancy, quantify parameters, and rationally allocate weights to ensure objective and accurate scores. It enables tunnel thermal hazard detection and early warning, providing guidance for prevention and control, reducing impact, and is of great significance to tunnel engineering.

This application discloses a block asphalt crushing and impurity removal device, comprising: a feeding frame, a crushing mechanism installed on the upper side of the feeding frame to crush the incoming block asphalt, and a connecting discharge mechanism on the lower side of the crushing mechanism to receive the crushed particles; a discharge frame connected to one side of the feeding frame, and a filter cylinder installed on the inner side of the discharge frame; a first discharge port on the lower side of the discharge frame, and a second discharge port on the lower side of the filter cylinder, located at the lower end of the discharge frame, to discharge small asphalt particles. This application has at least the following advantages: the tilt angle adjustment mechanism can dynamically adjust the tilt angle of the filter cylinder, thereby controlling the material flow rate, adapting to different feed rates and screening requirements, and ensuring stable screening results; by optimizing the combined design of the crushing mechanism and the filter cylinder, rapid crushing of block asphalt and efficient removal of impurities are achieved, improving overall processing efficiency.

The utility model provides a kind of industrial silicon powder granulating device, comprising: granulator body, the screening device of being equipped in the discharge port below of granulator body, the conveying plate of being fixed in the discharge port below of screening device, the powder elevator of being equipped in granulator body, conveying plate side, the inlet of powder elevator of being equipped in the lower end of conveying plate, the discharge port of powder elevator being equipped in the above of granulator body;Through above-mentioned scheme, screening device can promptly, effectively screen the particle produced by granulator, effectively separate qualified particle meeting granularity requirement and unqualified particle or powder, powder recycling is realized by powder elevator, avoid the waste of powder, reduce the consumption of raw material, reduce the raw material procurement cost of enterprise.

The application relates to the technical field of artificial intelligence, and discloses a data processing method, device, equipment and storage medium to improve blacklist processing capability. The method part comprises the following steps: receiving a loan approval request sent by a target business system, the loan approval request carrying loan approval data, the loan approval data comprising a system type of the target business system and attribute information of an applicant; calling a blacklist interface corresponding to the system type to obtain a system blacklist; judging whether the applicant is a user in the system blacklist according to the attribute information of the applicant; when the applicant is not a user in the system blacklist, a platform blacklist of an automatic approval platform is called; judging whether the applicant is a user in the platform blacklist according to the attribute information of the applicant; when the applicant is a user in the platform blacklist, a loan service corresponding to the loan approval request is rejected, and rejection result information is generated and fed back to the target business system.

This invention belongs to the field of wheat breeding, specifically relating to a wheat Fusarium head blight resistance locus and molecular breeding method. This invention identified five stable Fusarium head blight resistance-associated loci, Qfhb.jaas-2D, Qfhb.jaas-3A, Qfhb.jaas-3B.1, Qfhb.jaas-5A.2, and Qfhb.jaas-6D, on chromosomes 2A, 2D, 3A, 5A, and 6D. For the identified resistance loci, this invention designed KASP molecular markers. These markers have high specificity and sensitivity, enabling accurate and rapid detection of resistance genotypes in wheat materials, providing a powerful tool for marker-assisted selection (MAS). This invention verified the effectiveness of the screened resistance loci. The results showed that the above five loci were significantly associated with Fusarium head blight resistance, providing a reliable basis for the breeding of resistant varieties.

The invention discloses a method for detecting potential electric leakage defects of an LED device, and relates to the technical field of semiconductor photoelectric device detection. Aiming at the technical pain point that recessive microdefects (such as a metal migration channel caused by a V-shaped pit and dislocation) cannot be identified by the existing single spectroscopic detection, the invention provides a detection logic of reference parameter acquisition, defect stress excitation, parameter acquisition after excitation and differential analysis and judgment. Specific stress is applied to primarily screened qualified products, ion migration at potential defects is excited in an oriented mode, and hidden electric leakage is dominated. Potential defective products are accurately rejected by calculating parameter drift distances (VFL, IR) before and after stress. The method is not only suitable for interactive screens, but also suitable for high-reliability scenes such as vehicle-mounted display and high-end illumination, and can effectively intercept hidden lamp beads causing'caterpillar 'failure or early light attenuation, thereby remarkably improving the product yield and the terminal reliability.

The application belongs to the technical field of quartz sand processing, in particular to a fine crushing and multi-stage purification process for preparing ultra-high-purity quartz sand, which comprises a machine body, a fixed frame is fixedly connected to the upper surface of the machine body, a feeding port is formed in the fixed frame, a first motor is arranged below the machine body, a crushing roller is drivingly connected to the output end of the first motor, auxiliary plates are fixedly connected to the inner wall of the feeding port on both sides, tooth gears are fixedly connected to one side of the auxiliary plates and staggered with the tooth gears on the circumferential surface of the crushing roller, the auxiliary plates are used for assisting the crushing roller to crush quartz sand, a purification cavity is fixedly connected to the middle of the machine body, and a sieve plate is elastically connected in the purification cavity, through the hooking assembly and the blockage cleaning assembly, the problem that the existing screening is blocked and the screening efficiency is reduced is solved, and the problem that the falling is slow during the screening process is solved.

This utility model provides an automated vibratory screening device for quartz sand, relating to the field of quartz sand screening technology. It includes a mounting frame with a mounting ring welded to the bottom inner side of the top of the mounting frame. A splicing screening assembly is provided on the upper side of the mounting ring frame. The splicing screening assembly includes a support ring frame mounted on the top of a support ring frame, a splicing frame above the support ring frame, and a splicing top frame above the splicing frame. A vibration connecting block is welded to the upper inner wall of the splicing top frame. By setting up an electrically controlled lifting rod, a connecting top plate, a servo motor, and a vibrating pressure plate, the servo motor drives the vibrating pressure plate to reciprocate. The vibrating pressure plate corresponds one-to-one with the vibrating connecting block, causing the entire splicing screening assembly to vibrate, thereby achieving effective screening of quartz sand. Simultaneously, the bottom support spring reduces the outward transmission of vibration, preventing significant shaking of the entire device and reducing overall vibration and noise generation.

This invention discloses a method and system for distribution network fault identification based on adaptive visual graphs and multi-source fusion. The method includes the following steps: S1: Acquire multi-source electrical analog data of the distribution network and preprocess it to obtain preprocessed multi-source signals; S2: Dynamically weight and fuse the preprocessed multi-source signals using a correlation variance contribution algorithm to obtain a fused signal; S3: Map the fused signal into a graph structure using an adaptive convergent visual graph algorithm; S4: Input the graph structure into a pre-constructed graph neural network model to obtain a global graph feature vector; S5: Input the global graph feature vector into a fully connected layer and output the fault probability distribution through a Softmax classifier. This invention constructs a feature space that can objectively characterize the essential differences between normal operating conditions and fault states in terms of physical correlation and topological structure, thereby achieving accurate identification of known faults and effective identification and elimination of unknown benign disturbances.

The utility model belongs to the field of flame -retardant fibre waste recovery, concretely relates to a kind of impurity removal device for flame -retardant fibre waste recovery, including screening box, the top of screening box is fixedly connected with fixed frame, the bottom of screening box is provided with collection box, the outside of collection box is provided with vibration assembly, the top of fixed frame is provided with transmission assembly, the inside of fixed frame is provided with impact resilience component, the vibration assembly includes vibration spring, the bottom of vibration spring is fixedly connected in the top of collection box;The utility model is when carrying out screening treatment to flame -retardant fibre waste, user places flame -retardant fibre waste to the top of screening box, then starts vibration motor, vibration motor drives screening box to vibrate, so that screening box can screen flame -retardant fibre waste, the impurities therein are screened to the inside of collection box, and it is convenient to collect and remove impurities.

The application belongs to the technical field of intelligent breeding, and provides a sow leg automatic scoring method and device based on three-dimensional point cloud. The method comprises the following steps: acquiring a target three-dimensional point cloud model of a pig; extracting a leg point cloud set corresponding to each leg of the pig from the target three-dimensional point cloud model; determining leg key point data of each leg from the leg point cloud set corresponding to each leg; determining trunk key point data from the target three-dimensional point cloud model according to the leg key point data; determining a posture determination result of the pig according to the target three-dimensional point cloud model, the leg key point data of each leg and the trunk key point data; and in the case that the posture determination result indicates that the pig is in a standard standing posture, determining a leg structure type and a leg structure score of the pig according to the leg key point data. The application can stably identify the leg structure characteristics of the pig and realize consistent automatic scoring, and has good application potential in terms of accuracy, robustness and interpretability.

The utility model discloses a mixed powder granulator for chicken essence production, including the granulator main part, the one side of granulator main part is provided with screening subassembly, screening subassembly includes screening jar, the lower extreme mounting of screening jar has the support leg, the outside of screening jar is provided with fixed block, the inside of fixed block is connected with the bolt through rotating, the outside of first -stage screening frame and second -stage screening frame is rotatively connected in the one end of bolt, under the action of first -stage and second -stage screening frame, granule is accurate and is screened according to size, has guaranteed the uniformity of chicken essence granule, has avoided big granule and small granule to mix, has avoided the mixture of different granule size and led to the nonuniformity of solubility, and then has influenced the flavor and use experience of chicken essence, and the flowing push -plate is dispersed granule through rotation, ensures that granule evenly distributes and passes the screen, is helpful to the efficient screening of granule, also avoided the granule gathering or accumulation.

The utility model discloses a vibrating type inclined screen coal slime screening device, it includes base, drive box, screening bin body and grading assembly. Screening bin body realizes reciprocating movement through crank connecting rod mechanism, and the inside screen cylinder slow rotation switches through -hole area, and cooperates the dynamic cleaning brush hair and cleans screen cylinder surface, reduces the blockage. The auxiliary bin body is provided with strip-shaped scraper, slide bar and airflow channel, and the cleaning effect is enhanced. The device is cleverly matched through mechanical structure, reduces cleaning frequency significantly while high -efficiently screening coal slime particles, simplifies the operation, has higher practicality and popularization value.

This invention discloses a method for determining the volume of a single standing tree based on a backpack-mounted lidar, belonging to the field of forestry surveying and remote sensing technology. During system operation, the three-dimensional point cloud acquired by the backpack-mounted lidar is preprocessed, a unified coordinate system is established, and non-terrestrial point clouds are extracted. Individual tree segmentation is achieved by combining density peak clustering and vertical profile connectivity analysis, obtaining individual tree point cloud clusters. Equally spaced evaluation layers are divided along the tree height direction, and the effective point density, azimuth coverage, and normal vector consistency of each layer are calculated to determine the data reliability level. A high-reliability layer is selected, and weighted least squares circle fitting is used to obtain the center and radius of the cross-section, which are then used as observation constraints. Typical trunk tapers of the same tree species and age group are introduced as morphological priors. The optimal parameterized surface model is solved through Bayesian inference, and finally, the volume of a single standing tree is calculated by integrating the Huber formula.

This invention provides a method, system, and storage medium for diagnosing and evaluating locomotive coupler instability, belonging to the field of coupler instability diagnosis technology. The method includes: filtering and denoising historical longitudinal impulse monitoring data from existing heavy-haul locomotives to obtain filtered and denoised longitudinal impulse monitoring data; obtaining data from a limited number of measuring points; constructing a multi-channel identification model for the longitudinal impulse of the heavy-haul locomotive and obtaining multi-channel identification results; constructing a coupler instability diagnosis and evaluation model based on the multi-channel identification results; and diagnosing the coupler instability state of the target locomotive based on the coupler instability diagnosis and evaluation model and outputting instability evaluation results. This invention enables multi-channel indirect identification of the longitudinal impulse of heavy-haul locomotives under limited measuring point conditions and simultaneously completes the diagnosis and evaluation of the locomotive's operating status.

The application relates to the fields of molecular biological technology and livestock breeding technology, in particular to a SNP molecular marker related to a total number of piglets character, a detection primer pair, a kit and application of the SNP molecular marker in a method for breeding large white pigs with high number of piglets, the SNP molecular marker is located on a pig 9th chromosome, a physical position is located at chr9:65633096 of a genome version Ensembl Sscrofa11.1, a polymorphism site is C or A, and the C allele is positively correlated with the high number of piglets character; through genotype discrimination, selection breeding can be carried out: an individual with a genotype of C / C is preferentially selected or reserved as a breeding pig, because the total number of piglets has the highest potential, so that the genetic improvement speed of a population breeding performance is accelerated.

The utility model discloses a multistage screening's olea europaea fruit screening machine relates to the field of olea europaea fruit screening, one side of base is installed with drive platform, and the drive platform top one side installs the feeding box, the inside of screening seat is provided with a plurality of tapering rods, and the bottom of screening seat is installed with three groups first sieve plate, and the bottom of first sieve plate is installed with second sieve plate, and the aperture that sets up on first sieve plate is greater than the aperture that sets up on second sieve plate, and the aperture on three groups first sieve plate is set from small to big, be provided with reciprocating mechanism for reciprocating screening seat on drive platform. Through driving motor belt pulley, rotating column and eccentric wheel operation, utilize the eccentric motion of eccentric wheel to drive connecting rod, and then make rotating seat drive screening seat reciprocating slide on base, can make olea europaea fruit better move on sieve plate, make fruit can change position constantly, evenly distribute on sieve plate.

This invention discloses a turtle peptide with angiotensin-converting enzyme (ACE) inhibitory activity, its preparation, and its application, belonging to the field of biotechnology. Using turtle as raw material, this invention obtains peptide components with a molecular weight less than 5 kDa through enzymatic hydrolysis and ultrafiltration. Sequencing reveals three peptide sequences with ACE inhibitory activity: AAGPAGGNLN, EAGAQGPPGA, and GARGDK. In vitro activity experiments verified the ACE inhibitory function of the three turtle peptides. The turtle peptide combination prepared by this invention exhibits significant ACE inhibitory activity and can be used to develop functional foods or antihypertensive drugs. Furthermore, the preparation method is environmentally friendly, efficient, and suitable for industrial production.

This utility model belongs to the field of Chinese herbal medicine slicing technology, and in particular to a Chinese herbal medicine slicing device with automatic waste collection. It includes a Chinese herbal medicine slicing machine body, a feeding plate fixedly connected to one side of the machine body, several evenly distributed lower elongated feeding holes and several evenly distributed upper elongated feeding holes on the feeding plate, a Chinese herbal medicine slice support plate below the feeding plate, an adjusting plate below the support plate, several lower and upper elongated feeding plates fixedly connected to the top of the adjusting plate, an electric telescopic rod fixedly connected to the bottom of the adjusting plate, and a waste bin below the feeding plate. The larger opening area of ​​the lower and upper elongated feeding holes facilitates the dropping of large particles and long strips of waste, and the staggered distribution of the lower and upper elongated feeding holes allows for more effective screening of waste.

This invention relates to an intelligent method and system for constructing research teams in emerging fields, belonging to the field of data mining and talent matching technology. It includes the following steps: data crawling, cleaning, and database construction; BERTopic static topic clustering; temporal evolution analysis and new word identification; keyword co-occurrence network analysis and knowledge association; researcher grouping based on topic similarity; team construction and database storage integrating influence evaluation; and system self-updating, feedback, and optimization. This invention achieves accurate identification and dynamic tracking of emerging directions by integrating BERTopic static topic clustering and DTM dynamic evolution analysis; it aggregates researchers based on topic similarity and objectively evaluates and selects core members using entropy weighting, solving the problems of lagging identification, inaccurate matching, and subjective evaluation in existing technologies, thus achieving efficient and intelligent construction of research teams in emerging fields.

This application discloses a navigation service recommendation method, apparatus, electronic device, and storage medium. The method includes acquiring user voice information; acquiring historical dialogue data in response to the user voice information; determining a target functional mode and search conditions based on the user voice information and the historical dialogue data; and calling the large model interface corresponding to the target functional mode to perform a search based on the search conditions to obtain point-of-interest (POI) information. This solution can achieve accurate searching in the face of complex POI search conditions, thereby improving the accuracy of search results.

This invention discloses a molecular marker InDel05 related to soybean oil content, detection primers, and their applications. The molecular marker InDel05 is located at the physical location 41854660-41854682 on soybean chromosome 5, and its nucleotide sequence is shown in SEQ ID No. 1. Based on this, detection primers for the molecular marker InDel05 were designed. The length difference of the amplification products is detected by PCR amplification. Soybean materials without the inserted fragment in the PCR amplification product are high-oil-content soybeans, while those with the inserted fragment are low-oil-content soybeans, thus achieving the identification of soybean oil content phenotypes with an accuracy of up to 87.5%. The molecular marker InDel05 and detection primers provided by this invention can be used for rapid, accurate, and efficient screening of high-oil-content soybean germplasm, significantly improving the efficiency of marker-assisted selection breeding and accelerating the breeding process of high-oil-content soybean varieties.

The utility model relates to a kind of low melting point glass powder screening devices for electronic packaging, including screening box, horizontal screening cylinder is equipped in screening box, one end of the screening cylinder is connected with horizontal feed pipe, the other end of feed pipe is through screening box and is drawn out screening box outside and is equipped with feed hopper, feed screw one is equipped in feed pipe, the sidewall of screening cylinder is covered with sieve hole, the cylinder wall of screening cylinder is equipped with openable and closable discharge port, the other end of screening cylinder is fixedly connected with rotating shaft, the rotating shaft corresponding screening box is fixed with baffle, transmission cavity is formed between the baffle and screening box, rotating shaft is sequentially through baffle and screening box and is connected with stepper motor two after;Cleaning rod is equipped in the screening box above screening cylinder.The utility model is screened in screening box, avoids glass powder splashing, high safety, effectively avoids pollution to operating environment;Glass powder can be more efficiently screened.

This utility model relates to a material grading and conveying device; it includes a first feeding hopper, a first discharge port at the bottom of the first feeding hopper corresponding to the low end of a first belt conveyor, a first deflecting roller between the first discharge port and the low end of the first belt conveyor, a second feeding hopper directly below the high end of the first belt conveyor corresponding to the second feeding hopper, a second discharge port at the bottom of the second feeding hopper corresponding to the low end of the second belt conveyor, a second deflecting roller between the second discharge port and the low end of the second belt conveyor, a first inlet at the bottom of a first material pipe located on one side of a first spool separator directly below the high end of the second belt conveyor, a first material pipe connected to the top of a first cyclone unloader, a first impurity outlet at the bottom of the first material pipe, and a first airlock fan at the bottom of the first cyclone unloader; it has the advantages of reasonable structural design, labor-saving conveying, and effective screening of impurities in moxa wool.

This utility model discloses a recycled plastic granule screening device, relating to the technical field. Its key technical features include a feeding rack, a oscillating screening mechanism mounted on the feeding rack, a detachable screening mechanism mounted on the inner side of the lower end of the oscillating screening mechanism, a screening positioning mechanism mounted on both sides of the oscillating screening mechanism with its inner end mounted on the feeding rack, and a belt conveyor located below the oscillating screening mechanism. The technical advantage is that the electric telescopic cylinder of the oscillating screening mechanism can drive the recycled plastic granule collection box to move left and right during telescopic movement. The collection box is effectively positioned by the screening positioning mechanism during movement, making the collection box more stable during oscillating screening.

This invention provides a polar unmanned aerial vehicle (UAV) navigation method and system based on image-assisted localization, relating to the field of computer vision. The navigation method includes: acquiring the coarse three-dimensional position and coarse attitude quaternions of the polar UAV; acquiring real polar starry sky images and constructing a continuous optical residual strain field; calculating the divergence and curl of the optical residual strain field, identifying and proposing refraction distortion regions and auroral interference regions to obtain an initial starry sky region; extracting multidimensional features within the initial starry sky region, iteratively correcting the effective starry sky region boundary based on Mahalanobis distance to obtain candidate starry sky regions; extracting the actual motion optical flow field and theoretical optical flow field within the candidate starry sky regions, verifying them in conjunction with the three-dimensional translational velocity vector calculated by a mobile local area network, eliminating false starry sky regions, and obtaining the optimal starry sky region; and completing the final precise positioning within the optimal starry sky region.

The application discloses an InDel molecular marker related to soybean grain weight, fat content and isoflavone content and application, and relates to the technical field of molecular detection. The nucleotide sequence of the InDel molecular marker is shown in SEQ ID NO. 4. The application finds, through whole genome association analysis, that 16bp and 11bp insertion / deletion variations exist in a specific region of the 13th chromosome of soybean, and provides an InDel molecular marker related to soybean grain weight, fat content and isoflavone content based on the same. The InDel molecular marker can be used to quickly and accurately detect the genotype of a target site, and distinguish soybean materials with different genetic backgrounds, thereby effectively assisting in screening of soybean varieties with excellent grain weight, fat and isoflavone content. The application significantly improves the accuracy and efficiency of breeding selection, and provides a powerful tool for accelerating the genetic improvement process of soybean.

The utility model discloses a building sieve which comprises a shell, a fixing frame, a first sieve, a second sieve, a reciprocating screening mechanism and a tray, the fixing frame is placed at the upper end of the shell, the first sieve is arranged in the fixing frame, a first slot is formed in the inner wall of the shell and used for installing the second sieve, and a second slot is formed in the inner wall of the bottom and used for being connected with the slidable tray. The reciprocating screening mechanism is composed of a fixing frame, a cam, a driving motor and the like, the driving motor drives the cam to rotate, the fixing frame reciprocates on the shell, and meanwhile a vibration motor of the second screen enhances the screening effect. By means of the structure, the screen can efficiently screen building materials in a classified mode, materials with different particle sizes are effectively separated, the operation stability is guaranteed through the structural design of the screen, meanwhile, cleaning and maintaining are convenient, the screen can be widely applied to the fields of building construction, building material production and the like, and the screening efficiency and quality are improved.