1010 results about "Sample collection" patented technology

The utility model relates to the technical field of ecological environment detection, in particular to an underwater plankton sampling device which comprises a main body, a sampling driving component is arranged in the main body, and a control collecting component is fixedly connected in the main body; according to the utility model, the sampling depth can be accurately controlled by utilizing the depth sensor, in order to meet different research requirements, the tube wheel is driven by the motor to wind the sinking tube, and the automatic control driving mechanism can quickly complete sampling and can drive the sampling barrel to move up and down in water to realize sampling at different depths, so that the sampling efficiency is improved. The microprocessor is used for controlling the operation of the depth control mechanism and the driving mechanism, automatic sampling is realized, the inner wall of the sampling barrel is smooth, attachment and damage of plankton in the sampling process are avoided, automatic sampling is realized through the control unit, the operation is simple, and the use is easy; the sample collection container can be used for storing sampled plankton samples, so that the samples are prevented from being polluted.

The invention belongs to the technical field of vanadium enrichment mechanisms of phosphorus vanadium ores, and discloses a research method of a vanadium enrichment mechanism in a diagenetic stage of phosphorus vanadium ores, which comprises the following steps: S1, sample collection and treatment; s2, rock ore identification and mineral composition analysis; s3, analyzing the occurrence state and microcell morphology of vanadium; s4, performing geochemical analysis on the whole rock; s5, in-situ microcell geochemical analysis is carried out; s6, phosphorus nodule analysis; s7, comprehensive analysis and mineralization model establishment; according to the method, mineralogy, total rock geochemistry, micro-area surface scanning and other multi-scale and multi-means research methods are comprehensively utilized, and the vanadium occurrence state, the ore-forming fluid evolution and the phosphorus-vanadium coupling relation are finely described; in-situ microcell geochemical analysis is introduced into phosphorus nodule analysis, the internal structure, the growth sequence and element distribution of the phosphorus nodule are directly revealed, obvious frontier and systematicness are achieved, and reliable theoretical support is provided for accurate exploration of vanadium ore resources and green and efficient dressing and smelting process research and development.

The invention relates to the technical field of health evaluation, in particular to a group image health evaluation method and system based on intestinal flora, and the method comprises the steps: collecting intestinal flora samples of a target group through a standardized process, and obtaining microbial sequence information through a high-throughput sequencing technology; microflora diversity characteristics and core flora characteristics are extracted through strain identification and relative abundance analysis, individual flora characteristics are compared with a healthy population reference database, health state scores are calculated, health grades are divided, population health grade distribution is counted, and the population health grade distribution is calculated. And generating a group health evaluation report containing a visual chart and text analysis. According to the method, a complete technical system from sample collection to health strategy making is established, systematic evaluation of the group health state from the perspective of intestinal flora is achieved, and the limitation of a traditional method in group health early evaluation is overcome. The method is suitable for health monitoring of different scales of groups, and provides effective technical support for public health management and health service.

The invention relates to the technical field of collection equipment, in particular to a sample collection device for diesel engine gas detection. A first pipe opening, a second pipe opening and a third pipe opening are formed in the pipe body; a collecting barrel is installed in the first pipe opening, a limiting mechanism used for being connected with a flue of a diesel engine is installed on the second pipe opening, a flow monitoring mechanism is installed on the third pipe opening, and the particulate matter collecting barrel, the flow monitoring mechanism and the flue connecting mechanism are integrated on one pipe body, so that particulate matter collection and gas flow measurement are synchronously carried out; measurement errors caused by fluctuation of working conditions are greatly reduced, and the accuracy and reliability of detection data are improved.

Provision of construction geological survey sampling equipment. The present invention includes a boring pipe for drilling holes, and a sampling mechanism is provided within the boring pipe, the sampling mechanism including a sampling disk. By combining the sampling disk and a plurality of independent sampling tubes, the sampling tubes can be sequentially protruded from the sampling hole at different depths with a single penetration of the boring pipe, thereby achieving continuous layer-by-layer sample collection, one or more samplings at the same position, and continuous sampling at different positions, without the need for intermediate sampling tube replacement or secondary drilling, thereby improving sampling efficiency, accuracy, and versatility.

The invention discloses a mineral sample acquisition optimization method based on stratum change identification, and particularly relates to the technical field of mineral exploration sampling, comprising the following steps: acquiring lithologic characteristics, fault distribution, underground stress information and historical sampling data, fusing to form spatial reference data and generating a stratum change level distribution map, then constructing a sample collection candidate area map; generating a sampling path group and adjusting path layout according to the candidate area map, matching a sampling mode for each path, recording multiple types of data in real time in the sampling process and comparing the data with spatial reference data, and dynamically adjusting the sampling path or mode according to a comparison result; spatial reference data are generated through multi-source geological information fusion, and high-precision stratum change recognition is achieved; the sampling path layout is optimized in combination with disturbance distribution and operation constraint, so that the operation safety and the coverage integrity are improved; in the sampling process, response data are compared in real time, a sampling strategy is dynamically adjusted, and the geological consistency and reliability of a sampling result are ensured.

The application discloses a kind of intelligent switching water sample pretreatment system and method, system includes: combined sand filter sample barrel, for collecting water sample to be pretreated, initial water sample turbidity value acquisition is carried out, while water sample preliminary pre-filtering treatment is carried out;Positioning floating sampling device, for fixing to take supernatant after water sample settlement;Microfiltration module, for the microfiltration of ultrahigh turbidity water sample;Sample water transfer pump, for transmitting supernatant in combined sand filter sample barrel to microfiltration module;Sample collection barrel, for collecting and detecting water sample quantity after processing, for instrument or laboratory personnel to sample analysis;Valve assembly, by valve opening and closing, water sample is switched different pretreatment mode;Cleaning assembly, including rotary high-pressure spray head and self-heating ultrasonic cleaning device, for cleaning system after pretreatment internal residual adherend.

The invention discloses a soil environment Cd metal monitoring method based on specific response of root exudates, which comprises the following steps: in a monitoring period, carrying out root exudates sample collection and soil sample collection on a to-be-monitored area, carrying out root environment perception and dynamic exudates capture based on the collected samples, and generating a root perception data set; a response mode between the soil environment Cd degree and root exudates is established, and an exudates response characteristic fingerprint spectrum is established; coupling the synchronously collected soil environment data to carry out feature importance analysis and regression modeling, quantifying interference rules of different environment factors on a secretion response mode, and generating an environment correction coefficient set; constructing an environmental cadmium analysis model by utilizing the secretion response characteristic fingerprint spectrum and the environmental correction coefficient set; and in the next monitoring period, acquiring real-time area monitoring data of the cadmium sampling points in the area to be monitored, importing the real-time area monitoring data into the environment cadmium analysis model to carry out area cadmium metal situation diagnosis, and carrying out early warning prompt.

The utility model discloses a sample collector for analyzing harmful microorganisms in vegetables, which comprises a bottom plate, a sample box fixedly mounted at the top of the bottom plate, a fixed block fixedly mounted on the left side of the sample box, a vertical shaft fixedly mounted at the top of the fixed block, a connecting block rotatably mounted on the vertical shaft, and a box cover fixedly mounted on the connecting block. A discharging hole is formed in the box cover, a switching mechanism is arranged in the sample box, six sample tubes are movably mounted on the switching mechanism, and the switching mechanism is used for controlling the six sample tubes to alternate. The vegetable perforating and sampling device is reasonable in design, local areas with microorganisms on vegetables can be perforated and cut through the perforating pipe, samples possibly clamped in the perforating pipe are cleaned through the material returning rod when the perforating pipe ascends, next time of perforating and sampling can be conveniently carried out, the sampling efficiency is improved, the disc frame can be controlled to rotate by 60 degrees every time, and the sampling efficiency is improved. Furthermore, the sample tube is replaced, so that the vegetable sample is conveniently received, and the sampling efficiency is further improved.

The invention relates to the field of disease risk prediction models, and discloses a thyroid cancer metastasis risk prediction model and a construction method and application thereof. The construction method of the model comprises the following steps: S1, collecting and preprocessing a sample; s2, gene expression quantity detection; s3, data set division and standardization processing; s4, constructing a deep learning model; s5, performing model evaluation; and the biomarker group for detecting the gene expression quantity in the S2 is composed of RPS4Y1, PKHD1L1, CRABP1, KRT18P8, AGPAT4, CPQ, SLC26A7 and RBP4. The prediction model can be used as a clinical auxiliary diagnosis tool and is used for guiding operation range selection, postoperative follow-up visit strategy making and early intervention of high-risk patients, and the precise diagnosis and treatment level of thyroid cancer is improved.

The invention relates to the technical field of oral medicine and biological information analysis, in particular to an evaluation system for oral microbiological analysis and decayed tooth risk prediction. The system comprises a sample collection module, a microorganism detection module, a data preprocessing module, a microorganism population dynamic analysis module, a multi-dimensional feature extraction module, a decayed tooth risk assessment module and a personalized suggestion generation module. By constructing microbial population evolution analysis based on a Lotka-Volterra competitive model, diversity dynamic change analysis based on Shannon entropy and evolution trend prediction based on a Lyapunov stability theory, the system deeply reveals a dynamic evolution law of an oral micro-ecosystem, and a multi-dimensional feature adaptive weighting mechanism based on mutual information is adopted, so that the dynamic evolution law of the oral micro-ecosystem is improved. Personalized accurate risk assessment is realized, a causal reasoning theory is introduced to generate personalized intervention suggestions with causal support, and the accuracy and the prevention effect of dental caries risk prediction are remarkably improved.

The invention discloses a sample reaction detection device. The invention further provides a sample collection and detection device. According to the sample reaction detection device and the sample collection detection device provided by the invention, the sample enters the shell through the sample inlet, and then the reaction with the detection test paper and the display of the reaction result are completed in the shell, so that the problem of sample leakage is not easy to occur, the pollution can be avoided, and the safety and cleanliness are ensured.

A sample collection system includes a housing comprising an air inlet constructed to receive an exhalation airflow; a porous sample collection media disposed within the housing; an airflow path extending from the air inlet through the porous sample collection media; a liquid reservoir in fluid communication with the porous sample collection media, constructed to direct liquid onto the porous sample collection media, the liquid reservoir including: a volume housing the liquid; an opening; and a removable tab sealing the opening; and an assay constructed to receive an eluted sample from the porous sample collection media. A method of collecting and testing a sample includes flowing exhalation air through the porous sample collection media to form a captured sample; releasing a metered dose of liquid onto the porous sample collection media to elute the sample onto the assay; and observing a test result on the assay.

Systems and corresponding methods transfer liquid sample from a first container having a cap with a sample collection swab coupled thereto to a second container having a cap without such sample collection swap coupled thereto. Other systems and corresponding methods remove a cap having no sample collection swab coupled thereto from a first container and remove a cap having a sample collection swab coupled thereto from a second container containing a liquid sample. The cap with the sample collection swab coupled thereto is then secured to the first container and the cap having no sample collection swap coupled thereto is then secured to the second container.

The utility model discloses a blood detection device. The blood detection device comprises a shell, test paper and a cap, the shell comprises an upper shell and a lower shell which are fixedly connected, a containing cavity is formed between the upper shell and the lower shell, the test paper is located in the containing cavity, a blood sampling head is formed at the front end of the shell, a liquid inlet is formed in the blood sampling head, and the liquid inlet is communicated with the containing cavity through a capillary structure and a premixing cavity in sequence; a hydrophobic coating belt arranged in the left-right direction is arranged on the front cavity wall of the premixing cavity, and an air hole communicated with the containing cavity is formed in the rear end of the shell; the front end of the shell is sleeved with the cap, a liquid storage bag is arranged at the bottom in the cap, and buffer liquid is stored in the liquid storage bag. The blood detection device can realize integration of sample collection and sample treatment, and has the advantages of simple structure, low manufacturing cost, convenience in use, high detection success rate, high detection accuracy and the like.

The invention provides an innovative model based on the correlation between the PLEKHA4 gene expression level and the low-grade glioma radiotherapy sensitivity and a prediction method. According to the model, a multi-factor Logistic regression analysis framework is constructed, and the PLEKHA4 gene expression level and key clinical pathological parameters are organically combined, so that a radiotherapy sensitivity prediction model is established. The method comprises a series of steps of sample collection, gene expression detection, clinical information collection, model calculation, result interpretation and the like, and can realize accurate prediction of radiotherapy response of low-grade glioma patients. Compared with the prior art, the method has the remarkable advantages of simplicity and convenience in operation, high prediction accuracy, high clinical transformability and the like. The method has great potential in the aspect of guiding individualized radiotherapy scheme formulation, can significantly improve the treatment effect, and has important value for medical application. Besides, the model can be optimized through further clinical verification, so that clinical practice can be better served, and the life quality and prognosis effect of patients are improved.

This application provides a model training method, an information recommendation method, an apparatus, an electronic device, a computer-readable storage medium, and a computer program product. The method includes: during the training of a first prediction model, when a sample collection opportunity is determined, acquiring first sample data of a first recommendation scenario within the current time period and second sample data of a second recommendation scenario within the current time period; merging the first and second sample data to obtain merged sample data; determining a first prediction conversion rate of the first recommendation scenario, and sampling the merged sample data based on the first prediction conversion rate to obtain new sample data; adding the new sample data to the training dataset of the first prediction model to obtain an updated training dataset; and training the first prediction model based on the updated training dataset. This application can improve the accuracy of conversion rate prediction during cold starts.

The utility model relates to the technical field of hydraulic engineering, in particular to a foundation detection device for hydraulic engineering, which comprises a bottom plate and a sampling device, the upper surface of the bottom plate is fixedly connected with an assembly frame, the upper surface of the assembly frame is fixedly connected with a servo motor, the driving end of the servo motor is fixedly connected with a pneumatic rod, and the lower surface of the pneumatic rod is fixedly connected with a ground drilling rod. The lower surface of the bottom plate is rotatably connected with a round wheel, the sampling device is arranged on the surface of the bottom plate, the sampling device comprises a cylinder, and the cylinder is fixedly connected with the bottom plate. According to the utility model, when the earth drilling rod drills underground and then resets, the soft hairs timely scrape off the adhered soil, so that the sample collection is more complete, and the soil leakage loss is reduced; the original stratum information of the sample is retained to the maximum extent, reliable materials are provided for accurate analysis of the soil property of the foundation of the water conservancy project, the collected sample can be quickly and properly stored, the sample is prevented from being interfered by the external environment, the sample state is kept stable, and the subsequent long-time and high-precision detection requirement is met.

The invention discloses an anti-coagulation blood specimen collection oscillation device, and relates to the technical field of blood collection, and the anti-coagulation blood specimen collection oscillation device comprises a base and a main body forming the device; the movable mechanism is assembled at the upper end of the base and is used for uniformly and automatically oscillating the sample in a reciprocating manner; the locking mechanism is assembled at the upper end of the movable mechanism and is used for generating a trigger signal when the sample main body is inserted in place; according to the anti-coagulation blood sample collection oscillation device, stable positioning of a sample in the treatment process can be ensured through the locking mechanism, displacement caused by vibration or external interference is avoided, the accuracy of an experimental result is ensured, meanwhile, downward pressure is applied to help to correct the position of the sample, deviation caused by the shape of the sample or a non-uniform container is further prevented, and the sampling accuracy is improved. And the sample processing stability is improved.

The application provides a kind of ore grade distribution real-time detection method, system and equipment, it is related to mining technical field, method mainly includes: based on the operation map of mining area, centralized control center determines blast design hole coordinate;Automatic drill travels to a hole position and is in position;Automatic drill carries out drilling operation, obtains drill cuttings and records operation parameters in real time;Automatic detection platform is sampled to drill cuttings by sample collection device continuously by continuous flow;Through drying, tabletting, analysis processing, ore grade content and internal profile structure diagram, and match corresponding hole data;Based on ore grade content, internal profile structure diagram and hole data, single-hole model characteristic curve is obtained by fusion;The above operation is carried out to all hole positions;The average value of the single-hole model characteristic curve of adjacent hole positions is calculated, and curve fitting is carried out to obtain the ore grade spatial distribution imaging map.The scheme can provide intuitive guidance for ore dressing of mine, and can greatly improve the mining efficiency and quality.

The invention discloses a sampling assembly, sampling equipment and a sampling reaction device. According to the present invention, the sampling assembly comprises: a sampling plate, the top of which is provided with an accommodating groove, and the accommodating groove is used for placing a sample collection container; a bulge is arranged at the top of the sampling plate outside the accommodating groove, and is positioned in the middle area in the length direction of the sampling plate; a groove for accommodating the sampling plate is formed in the top of the placing plate; when the sampling plate is placed in the placing plate, at least part of the protrusion is located outside the placing plate. And the sample plate can be conveniently, stably and rapidly grabbed, and the grabbing process is more stable.

The utility model relates to a matching structure of an inner knife and an outer knife of a biopsy needle. The matching structure comprises an inner knife tube and an outer needle tube sleeved outside the inner knife tube, an expansion pipe section capable of containing more collected tissues is arranged on the front side of the inner knife pipe, and the lower peripheral side pipe wall, corresponding to the pipe section, of the tissue suction inlet expands outwards to form an expansion groove structure; a fluid conveying channel is formed between the expansion groove structure and the outer wall of the expansion pipe section; the rear section of the inner knife tube is in clearance fit with the rear section of the outer needle tube to form an annular conveying cavity communicated with the fluid conveying channel. According to the utility model, the expansion tube section of the inner knife tube is matched with the expansion groove structure of the outer needle tube, so that the sample collection space of the inner knife tube is maximized, and the sampling effect is improved; while the outer wall surface of the expansion tube section is tightly attached to the inner wall surface of the outer needle tube, the gap is minimized, meanwhile, the expansion groove structure of the outer needle tube can be communicated with the annular conveying cavity, fluid communication is ensured, and cutter blockage caused by the fact that fluid cannot be communicated after tissue cutting is completed is avoided.

The invention discloses a portable transformer oil sample collection device which comprises a mounting cover, a sealing plate, an unlocking mechanism and a conveying mechanism, the unlocking mechanism is arranged in the mounting cover and comprises an unlocking part and a pushing part, the pushing part is connected with the end, away from the oil valve, of the mounting cover in a sliding and penetrating mode, and the unlocking part is fixedly connected with the end, close to the oil valve, of the pushing part. Through the design of the mounting cover and the unlocking mechanism, when a transformer oil sample is collected, the mounting cover is in threaded sleeving connection with the outer wall of an oil valve, a twisting block is pushed, a pushing rod is driven to move through the movement of the twisting block, a sealing rod is driven to move through the movement of the pushing rod, an unlocking rod is driven to move through the movement of the sealing rod, and an unlocking block is driven to move through the movement of the unlocking rod; the unlocking block and the sealing bolt are connected in a penetrating mode, the sealing effect of the sealing bolt on the oil valve is relieved through the unlocking block, an oil sample splashed by the oil valve is blocked and collected through the installation cover, and operators are prevented from being scalded or the site environment is prevented from being polluted.

The invention provides a method for detecting the content of magnetic substances in lithium carbonate. The method comprises the following steps: S1, carrying out sample collection and pretreatment; s2, accurately weighing the sample and fixing the volume of the sample; s3, carrying out gradient magnetic field magnetic separation and enrichment; s4, carrying out ultrasonic-assisted washing and purification on the enrichment liquid; s5, magnetic substance precipitation dissolution and constant volume are carried out; s6, a step of carrying out ICP-MS instrument calibration and parameter optimization; s7, carrying out detection mother liquor determination and multivariate statistical error correction; s8, carrying out blank experiment correction; s9, carrying out parallel experimental verification; s10, a result calculation and judgment step is carried out; and S11, carrying out method verification and filing. According to the method, the problems in the prior art are creatively solved by organically combining gradient magnetic field separation and enrichment, ultrasonic-assisted purification, ICP-MS (Inductively Coupled Plasma Mass Spectrometry) accurate detection and multivariate statistical error correction aiming at the core pain point of the existing technology for detecting the magnetic substances in the lithium carbonate.

The utility model discloses a wheat smut infection detection device based on array type gas sensor, it includes box, the sample collection mechanism is installed to the box top, is provided with sensor mechanism, control mechanism, drive mechanism and power supply mechanism in the box interior, the sample collection mechanism includes sample heating stage and sample collection room, the sensor mechanism includes vacuum air pump, data acquisition card, data acquisition card seat, sensor gas chamber, activated carbon filter and gas flow control meter, and the control mechanism includes core processing unit, and its core processing unit is connected with data acquisition card seat through GPIO interface, and drive mechanism includes motor drive, and it is used for controlling the working condition of vacuum air pump, and power supply mechanism is used for supplying the electric energy of whole device, the utility model discloses does not need any chemical reagent or complicated physical processing, can complete the collection and analysis of volatile organic compound in a few minutes, greatly shortens the long time period required by traditional detection method.

The invention discloses a temperature measuring device based on a fluorescent material, and the device comprises a housing which comprises an upper cover, a housing pedestal, an LED light source, a fluorescent material, an optical fiber probe, an optical fiber spectrometer, an optical fiber, a console, a display screen, a charging device, a charging hole, a charging line, and a data exchange interface. The temperature measurement method based on the fluorescent material comprises the steps of database input, fluorescent material excitation, light sample collection, light component analysis, light parameter transmission, temperature value calculation and temperature value feedback.

A kit of parts for an exhaled breath condensate collection device. The kit comprises an assembly including a mouthpiece module. The kit further comprises a collection vessel configured to be cooled in use and configured for insertion into the assembly. The collection vessel defines a sealed and resealable chamber for collecting exhaled breath condensate in use. The collection vessel has a vessel breath inlet for admitting exhaled breath into the chamber. The kit of parts is configured such that the collection vessel is removable from the device in a sample containment configuration in which the collection vessel chamber is resealed. One or more parts of the kit of parts is configured and / or operable such that the collection vessel is caused to be resealed into the sample containment configuration after sample collection before the collection vessel is fully removed from the device.

The invention relates to the technical field of environment monitoring, in particular to a multi-point automatic water sampling device for an unmanned aerial vehicle, which comprises a water sampling mechanism arranged at the bottom of the unmanned aerial vehicle, the water sampling mechanism can be automatically connected with a flying platform of the unmanned aerial vehicle, the water sampling mechanism comprises a shell, a water tank and a water pumping component, the water tank is arranged at the bottom outside the shell, and a plurality of water sampling bins are arranged in the water tank in a surrounding manner; the shell is provided with a liquid inlet hole communicated with the water sampling bin; the water pumping component comprises a water pump, a turntable and a switching pipe, and a water inlet pipe is arranged at the suction end of the water pump and provided with a water sampling pipe; a drain pipe is arranged at the discharge end of the water pump; the turntable is driven by a switching motor and is provided with a through drainage hole, one end of the switching pipe is communicated with one end, far away from the water pump, of the drainage pipe through a sealing universal joint, and the other end of the switching pipe is communicated with the drainage hole. According to the invention, single-pass flight is realized, multi-point sample collection, storage, diversion and export can be completed, the water collection efficiency is improved, and the real-time performance of seawater monitoring is ensured.

The present application relates to the field of particulate matter sampling, and discloses a comprehensive sampling device for ambient air particulate matter, which comprises an information collector, a support fixedly installed at the bottom of the information collector, a storage box arranged at the side of the information collector, a tank storage block fixedly installed at the top of the storage box, a first sampling head connected to the top of the information collector, a second sampling head connected to the top of the first sampling head, a taking-out device arranged on the first sampling head and the second sampling head, and a sampling cover fixedly installed at the top of the second sampling head; the unused filter paper mounting piece is installed in the inside of the isolation piece through the placing piece, the filter paper mounting piece inside the second sampling head can be replaced when the second sampling head is blocked or the filter paper mounting piece is full, the problem that the collected particles may be shaken off when the filter paper mounting piece is taken out is reduced, the possible error in detection is reduced, and the convenience and accuracy of sample collection are improved.

A container assembly for collecting a fluid specimen including a collection container having a first end, a second end, and a sidewall extending therebetween and defining a chamber for receiving the fluid specimen. The container assembly may include a container lid couplable to the collection container to at least partially close the first end thereof. The container lid may include a sealing interface configured to at least partially contact the collection container when the container lid is coupled to the collection container. The sealing interface may include a textured sealing surface region configured to allow air into or out of the container assembly when the container lid is coupled to the collection container, while maintaining a substantially fluid-tight seal between the container lid and the collection container.