21 results about "Laboratory testing" patented technology

This invention provides a method for optimizing temperature control in large-volume hydraulic concrete, relating to the field of computer-aided engineering technology. The invention corrects the initial temperature field of the finite element model based on measured temperature values ​​and dynamically determines the candidate range of cooling water inlet temperature according to the current cooling rate, ensuring that each candidate range adapts to the cooling requirements. It achieves an accurate calculation starting point without laboratory testing, shortening the optimization cycle and reducing costs. By pairing candidate inlet water temperature values ​​with thermal resistance values ​​and substituting them into the finite element model to predict the temperature field, it determines the temperature safety margin, temperature difference safety margin, and temperature fluctuation stability index, using these three indices to evaluate the temperature control effect. This avoids the risk of sudden temperature drops caused by a single criterion. By selecting the feasible combination with the smallest deviation between the predicted temperature and the target control temperature as the target temperature control parameter, it achieves refined selection for each time period, ensuring that the internal temperature approaches the preset cooling target and that the cooling process proceeds smoothly.

This application provides an automatic continuous measurement method for the flowability of filler materials, comprising the following steps: Step S1, connecting the continuous measurement equipment, including: a first branch and a second branch connected in parallel; a third branch simultaneously connected to the ends of the first and second branches; Step S2, powder preparation; Step S3, automatic batching and slurry preparation, including adjusting the pipeline status, the pipeline status including: slurry preparation mode; water addition mode; and slurry discharge mode; Step S4, leveling work using the automatic flowability measurement device; Step S5, automatic sampling using the automatic flowability measurement device; Step S6, automatic flowability measurement; Step S7, cleaning and resetting the test plate; Step S8, cleaning the pipeline and the continuous measurement equipment. The automatic continuous flowability measurement method involved in this application can achieve high-frequency and accurate monitoring of flowability under long-distance, high-temperature conditions, and its slurry pipeline design can significantly improve the efficiency of multi-ratio tests, meeting the needs of large-scale laboratory testing.

This invention belongs to the field of solid mineral exploration and evaluation technology, specifically disclosing a rapid field identification method for altered rock-type niobium-tantalum mineralization based on spectral measurements. The method collects spectral data of altered rocks, extracts Fe-OH and Mg-OH spectral absorption characteristic position data after envelope removal, and completes preprocessing through outlier identification and interpolation filling. After adaptive smoothing, weighted fusion, and standardization, multi-model parameter fitting is performed, and the optimal model is selected by combining goodness of fit and information criteria. After smoothing and inflection point analysis of the fitted values, the niobium-tantalum mineralization grade range is determined. This invention achieves in-situ, non-destructive, rapid, and intelligent field identification, determining the degree of mineralization without laboratory testing, significantly improving prospecting efficiency, reducing exploration costs and risks, filling the gap in rapid spectral identification technology for altered rock-type niobium-tantalum mineralization, and providing efficient technical support for the exploration of strategic rare metal resources.

This utility model relates to the field of storage device technology, and discloses a storage device for laboratory testing, including a cabinet, two fixing blocks, and a storage box. The upper ends of the two fixing blocks are provided with a locking mechanism, and the upper end of the storage box is provided with a clamping mechanism. The locking mechanism includes multiple baffles, each with a slot in the middle of its inner wall. A threaded rod is rotatably connected to the bottom surface of each slot, and a threaded sleeve is fitted onto the outer wall of each threaded rod. Two connecting rods are fixedly connected to the lower ends of each threaded sleeve, and protrusions are fixedly connected to the lower ends of adjacent connecting rods. A locking block is fixedly connected to the middle of the lower end of each baffle. In this utility model, the threaded rods and protrusions cooperate to allow the connecting blocks to move and lock quickly, enabling convenient installation and removal of the baffles. The baffle positions are adjustable to accommodate items of different widths, reducing space waste, improving storage versatility, and making the entire process more convenient and practical.

This invention presents a rapid method for detecting moisture in raw materials and fuels. Addressing the problems of low efficiency, long cycle time, large human error, and significant data feedback delays associated with existing methods using manual oven drying in centralized laboratory testing, this invention provides a systematic solution for real-time, automated moisture detection at the physical testing end. The core of this method lies in the following: after raw materials are sampled upon arrival at the plant, moisture samples and analytical samples are separated. The moisture sample is directly placed in a multi-station fully automated moisture analyzer, where weighing, drying, and calculation are automatically completed. The test results are automatically uploaded to the enterprise's quality management system in real-time via a data interface for immediate production use. Simultaneously, the analytical sample is sent to the laboratory for testing according to the original process. This invention, through a combination of equipment automation and process reconfiguration, achieves on-site, parallel, automated, and real-time moisture detection, significantly improving detection efficiency and accuracy, and providing timely and reliable data support for stable blast furnace production and cost control.

This invention relates to the field of clinical laboratory technology and discloses an aptamer that specifically binds to AZGP1 and its applications. The invention uses magnetic bead SELEX technology to screen for the AZGP1-specific aptamer Seq7. Guided by Mfold secondary structure prediction, the core binding region Seq7T is truncated. Further, through site-directed mutagenesis, insertion, and substitution modifications, an optimized version, Seq7TM, containing specific motifs and capable of forming a compact mini hairpin structure, is obtained, further improving the performance of the nucleic acid aptamer. The aptamer of this invention can be widely used in the preparation of AZGP1 detection reagents, kits, or sensors; the preparation of AZGP1 capture / separation / purification formulations; the development of new methods for rapid early diagnosis of AMD; and the construction of AMD targeted drug delivery systems. It provides a novel and practical tool for early screening, early diagnosis, and early intervention of AMD, and has significant application value in the field of clinical laboratory testing.

This application provides a single-component formaldehyde-free styling agent specifically for mineral wool and a method for detecting its shelf life. The formaldehyde-free styling agent uses a formaldehyde-free binder as the matrix component, mixed with a compatible reactive silane coupling agent. Optionally, it also includes water-repellent agents and dust-proofing oils, etc., to produce a mineral wool product styling agent with long-term stability. This styling agent not only avoids the use of formaldehyde at the source, meeting environmental protection requirements, but also has a shelf life of more than 6 months, or even more than 12 months. This changes the traditional industry situation where styling agents need to be prepared on demand, providing a "ready-to-use" styling agent, realizing the mass production of single-component styling agents, thereby ensuring the quality stability of the styling agent. The detection method provided in this application can realize laboratory testing of the shelf life of mineral wool styling agents without the need for production line testing.

This invention discloses an experimental device, experimental method, and measurement and calculation method for hydrogeological parameters of underground reservoirs, including water holding capacity, storage coefficient, water yield, and permeability coefficient. It belongs to the fields of hydrological laboratory testing technology and geotechnical testing measurement technology. The device includes: a support platform; a test cylinder housed within the support platform; a pressure end and an upper permeable plate arranged sequentially from top to bottom at the upper end of the test cylinder; an axial pressure machine positioned between the pressure end and the support platform; a test sample placed between the upper and lower permeable plates; strain gauges installed on the axial pressure machine; an inlet tank and an outlet tank; the inlet tank having a main inlet pipe section equipped with a constant pressure inlet pump; and upper and lower outlet pipe sections converging at the main outlet pipe section, the other end of which is connected to the outlet tank. This invention can measure hydrogeological parameters such as water holding capacity, water yield, and permeability coefficient of a sample, saving on experimental instruments, space, manpower, and testing time.

This application provides a water quality assessment method, apparatus, and electronic device, relating to the field of water quality testing technology. The method acquires multi-source water quality data, including at least one of laboratory testing data, real-time sensor monitoring data, and text report data. Based on the multi-source water quality data, a water quality knowledge graph is constructed. Entities in the water quality knowledge graph include at least pollution sources, water quality parameters, and monitoring points. The relationships between entities include at least the influence of pollution sources on water quality parameters and the monitoring relationships between monitoring points and water quality parameters. Based on the water quality knowledge graph, the entities and their relationships are analyzed to generate water quality assessment results. This achieves deep fusion and intelligent correlation analysis of multi-source heterogeneous water quality data, enabling accurate tracing of pollution sources, dynamic assessment of water quality risks, and improving the overall efficiency of water quality monitoring and assessment.

This utility model provides a hydrofluoric acid-resistant reagent preparation device, relating to the field of laboratory testing equipment technology. It includes a preparation device body, a reaction status viewing window, a reagent preparation device neck, a pointed pouring spout, a dustproof cap, a reaction cap, and a bottom rotating heating base. The preparation device body has a triangular structure with an inverted triangular stabilizing buckle at the bottom. The reaction status viewing window, located at the top of the preparation device body, is a transparent triangular pyramid that tapers upwards and is seamlessly welded to the preparation device body. The reagent preparation device neck is sealed to the preparation device body. The dustproof cap covers the reagent preparation device neck and the reaction cap, and includes a vent valve, a reagent adder, and a control valve. The rotating heating base has a stabilizing groove that engages with the buckle, and integrates a rotating tray, a rotating shaft, a speed / temperature control knob, and a display screen. This utility model solves the problem of hydrofluoric acid splashing during dispensing, ensuring the safety and controllability of the hydrofluoric acid reaction.

The utility model discloses a laboratory inspection is used rice mill mill cavity subassembly in the field of rice mill equipment, including mill cavity and mill disc, and the clearance is left between mill disc edge and mill cavity inner wall, and mill cavity one side is equipped with the rice discharge door of openable fine, and mill cavity bottom is equipped with bran channel, the inner wall of mill cavity is fixed with the mill cavity inner ring of stainless steel material, the inside cavity of mill cavity inner ring is the circular truncated cone shape of little down big, one side of mill cavity inner ring is equipped with the fine rice discharge port of adapting with fine rice discharge door. In the process of milling, when brown rice reaches mill cavity inner ring edge under the action of centrifugal force, will make tumbling motion along the inner wall of mill cavity inner ring under the action of slope, make brown rice evenly distribute on the inner wall of whole mill cavity inner ring and carry out the milling, thereby reduce single milling time, increase single milling capacity, and the heat of friction is less, also more easily spread outward through mill cavity inner ring, thereby ensure the stability of rice mill continuous multiple work.

This invention discloses a groundwater sedimentation ultrafiltration treatment device for laboratory testing, mainly relating to the technical field of water purification equipment. It includes a coarse filter tank and a fine filter tank with an open top. A first cylindrical body divides the coarse filter tank into an inlet chamber and a mixing chamber, and a second cylindrical body divides the fine filter tank into a sedimentation chamber and an outlet chamber. The bottom of the coarse filter tank has several through holes connecting the mixing chamber and the sedimentation chamber. The bottom of the fine filter tank and the top of the outlet tank each have several first concave rings and second concave rings. A sleeve is provided between the first and second concave rings, and an ultrafiltration membrane is mounted on the sleeve. It also includes an outlet pipe connected to the outlet tank. The advantages of this invention are: solving the problems of inconvenience in replacing the filter membrane and cleaning residual contaminants and flocculent matter from the tank; avoiding interference with subsequent experiments with different parameters; improving the accuracy of experimental data; and meeting the practical needs of laboratories for rapid testing and process optimization.

This application provides a method for constructing a knowledge graph based on big data from clinical laboratory testing, belonging to the field of next-generation information technology. The method includes: collecting measurement results of the target disease group, other disease groups, and a healthy control group on the same test item; determining the central tendency and dispersion of each group on the same test item; determining a preliminary set of distinguishing items based on the central tendency and dispersion of each group; marking connecting edges with distinguishing strength attribute values ​​higher than a threshold as high-distinguishing edges by traversing the distinguishing strength attribute values ​​of all connecting edges in the initial knowledge graph, thereby obtaining an optimized weighted knowledge graph; recalculating the distinguishing strength attribute values ​​of high-distinguishing edges in the optimized weighted knowledge graph; and determining the final disease-specific test indicator knowledge graph based on the evaluation results of the exponential stability of the same connecting edge across different validation queues.

This invention relates to the field of big data processing technology, specifically to a fast adaptive method for industrial instrument error models in data-scarce scenarios. The method includes steps such as S1 meta-task generation, S2 meta-training, and S3 fast adaptation. This invention's fast adaptive method for industrial instrument error models in data-scarce scenarios constructs a real task pool covering multiple operating conditions using actual laboratory testing data, and optimizes global initialization parameters using a model-independent meta-learning framework. This allows the model to complete high-precision personalized modeling within a few gradient updates using only 1-3 field calibration points of newly installed instruments, completely overcoming the problems of large data requirements, long cycles, and cold starts for new instruments inherent in traditional methods.

The invention relates to a CD274 and CDKN2A gene fluorescence in-situ hybridization joint detection probe and application thereof, and belongs to the technical field of biological medicine. The invention provides a probe and a probe composition for tumor diagnosis and prognosis evaluation, the probe composition comprises a first probe for detecting a CD274 gene and a second probe for detecting a CDKN2A gene, and the first probe and the second probe are respectively marked with a first fluorescein and a second fluorescein which can generate different colors; the invention provides a fluorescence in situ hybridization combined detection method for simultaneously detecting CD274 and CDKN2A gene variation and a kit thereof. The method is simple in operation, wide in application range and capable of being used for various tissue and cell samples needing to detect CD274 and CDKN2A gene states at the same time, multiple results are obtained through one-time detection, and the target of quality improvement and efficiency improvement of clinical examination is met; the method has a very wide application prospect in evaluation of prognosis of various cancers.

This utility model discloses a highly adaptable steel ruler for composite film bags used in laboratory testing. It includes a steel plate with graduated strips at both ends of its upper surface, and a pressing mechanism. The pressing mechanism comprises a fixed pressure plate, a movable pressure plate, a guide rail, a slider, and a cylinder. The fixed pressure plate is rotatably connected to the left end of the upper surface of the steel plate via a rotating shaft. The guide rail is located at the right end of the upper surface of the steel plate, and a slider is laterally slidably connected inside the guide rail. This highly adaptable steel ruler for composite film bags allows for simultaneous determination of the positions of the composite film bag and the steel ruler simply by pressing the retractable fixed and movable pressure plates to cause deformation. This facilitates maintaining a fixed position between the composite film bag and the steel ruler during testing, improving the accuracy of the test results for the highly adaptable composite film bag, while reducing the space occupied by the steel ruler in its folded state, making its use more convenient.

This invention belongs to the field of rapid detection of plant viruses, specifically the rapid detection of sweet potato chlorosis dwarf virus (SPCSV). It proposes an RPA primer set and probe, a reagent kit, and a method of use for detecting SPCSV. This patent is applicable to the rapid detection of SPCSV virus. One sample undergoes one RPA test reaction using a single LFD test strip to directly read the result. The experimental method is simple, rapid, and highly efficient, requiring no additional instruments, placing no restrictions on operators, and allowing the experiment to be conducted not only in the laboratory but also in the field. Alternatively, multiple samples can undergo multiple RPA tests, with results displayed via agarose gel electrophoresis. This reduces experimental costs and makes it more suitable for laboratory testing of suspected infected plants or virus-free seedlings.

This invention provides a method for predicting the harvest window and scheduling staggered harvesting for stable quality of oxalic acid, relating to the field of modern oxalic acid harvesting technology. The method includes: acquiring historical meteorological data, plot spatial data, and harvesting, transportation, and pretreatment capacity data to generate a baseline staggered planting and production plan; collecting physiological development data, stress data, and non-destructive testing data, and combining this with laboratory testing to establish a quality index prediction model to determine the actual optimal harvesting time window; constructing a staggered harvesting scheduling model using an asymmetric loss function; implementing microclimate intervention when allowable deviations are exceeded; and controlling the maximum safe post-harvest retention time based on a post-harvest quality decay model. This invention is beneficial for improving the stable yield and harvest quality of oxalic acid raw materials.

This invention provides a method for assessing the residual value of commercial vehicle batteries and sorting them for secondary use based on multi-dimensional data; it includes the following sub-steps: S1: Collecting multi-source data and preprocessing it; S2: Estimating the battery health status and generating a comprehensive value score; S3: Sorting retired commercial vehicle batteries for secondary use; S4: Outputting a battery health report; This invention achieves multi-dimensional, accurate, and quantitative assessment of battery residual value, providing objective and verifiable value evidence for second-hand transactions, ensuring that transaction prices match the actual condition of the battery, reducing disputes between buyers and sellers, and promoting the standardized development of the second-hand electric commercial vehicle trading market; it significantly improves sorting efficiency, saves on equipment, manpower, and transportation costs for laboratory testing, and enables rapid online sorting of retired batteries; it identifies potential safety hazards such as historical faults, avoiding safety risks in secondary use from the source; it matches battery secondary use scenarios at different levels, explores the remaining value of batteries, and improves the efficiency of power battery resource recycling.

This application provides a full-chain digital scheduling method for laboratory testing tasks, including: decomposing the attack chain stages of laboratory threat assessment testing task requirements information to generate a testing task scenario feature vector table with attack chain stage labels; constructing a multi-dimensional profile of the technical capabilities of existing laboratory testing resources based on the testing task scenario feature vector table to generate a testing resource technical capability matrix with attack chain stage correlation coefficients; generating a task-resource scheduling configuration table with risk level identifiers based on the testing resource technical capability matrix; performing digital instruction hierarchical encoding on the task-resource scheduling configuration table to generate a scheduling execution and anomaly handling record table with instruction time-series trajectories; and calling a two-dimensional performance-delay model of scheduling strategies to generate strategy scheduling parameters adapted to the full-chain scheduling requirements for full-chain digital scheduling of laboratory testing tasks.

This invention belongs to the field of automotive testing technology and relates to a suspension testing bench for automobile production, comprising a multi-degree-of-freedom motion platform, a wheel center loading device, and a control system. The wheel center loading device consists of a wheel center adapter, a six-dimensional force sensor, and a loading head with a rigid cylindrical rod. Loads are applied to the loading head via three orthogonally arranged actuators. The control system synchronously drives the motion platform to simulate the vehicle body posture according to a preset composite load spectrum, and, based on real-time feedback from the six-dimensional force sensor, performs closed-loop control of the actuator outputs, ensuring high-precision matching between the six-dimensional load acting on the wheel center and the target spectrum. This invention achieves high-fidelity, repeatable laboratory testing of the spatial composite stress state of the suspension system.