56 results about "Separate sample" patented technology

The invention provides a gas field reservoir lithology earthquake prediction method based on CCIDI cleaning and TransMSAE, and the method comprises the steps: constructing a CCIDI cleaning module, and employing a well-divided lithology-divided strategy: employing IQR to remove statistical anomalies, employing DBSCAN to remove boundary noise, employing Isolation Forest to remove high-dimensional residual noise, and forming a high-quality logging data set; the method comprises the following steps: constructing a TransMSAE model: pre-standardizing a Transform encoder to capture long-range dependence, and providing robust time sequence representation; multi-scale convolution is introduced into the MSCCAM to extract a local-global mode, and cross attention is fused to improve complex deposition dynamic perception; aMFEM gating residual self-adaptively enhances minority class features, and minority class recognition is remarkably improved; designing NAFL-ProtoLoss mixed loss: NAFL focus inhibition easy-to-classify samples, ecological niche punishment over-confidence prevention, ProtoLoss zoom-in class inward pushing-out between classes, and optimization of unbalanced classification; finally, training and reasoning are carried out based on the model, and high-precision lithology prediction is achieved. The method provided by the invention has high generalization and accuracy, and has excellent reservoir prediction performance in a complex geological environment.

A method of operating an analytical instrument comprises ionising a sample to produce sample ions; (i) performing a first ion separation scan by separating sample ions according to a first physico-chemical property, and analysing the separated sample ions by performing one or more MS1 mass analysis scans; and (ii) performing a second ion separation scan by separating sample ions according to the first physico-chemical property, and analysing the separated sample ions by performing a plurality of MS2 mass analysis scans. Each MS2 scan of the plurality of MS2 mass analysis scans uses one MS2 isolation window of a plurality of MS2 isolation windows. The method further comprises analysing MS1 data acquired from the one or more MS1 mass analysis scan(s), and configuring the plurality of MS2 isolation windows based on the analysis of the MS1 data.

The invention discloses a full-automatic coke size fraction inspection method which comprises the following steps: automatically sampling by a sampler, and calculating the sampling times and the sampling interval time according to the number of discharging vehicles, the discharging duration and the total weight of the required sample amount; a forward and reverse rotation belt is used for division treatment, a screened sample enters a secondary collection hopper through a bucket elevator during forward rotation, and a work-separated sample enters a sample collection barrel during reverse rotation; opening the secondary collection hopper to enable the samples to uniformly enter a vibrating screen for screening, enabling the samples screened by the vibrating screen to respectively enter sample collection barrels of various size fractions, arranging an electronic platform scale below each sample collection barrel, and connecting the electronic platform scales with a mass metering system; and the mass metering system automatically reads the weight data of the electronic scale, calculates the coke proportion of each particle fraction according to the total weight added by each particle fraction and the unit weight of each particle fraction, and automatically generates a quality grade according to a preset quality judgment rule. According to the invention, the accuracy and reliability of coke fraction inspection can be improved, the labor intensity is reduced, and the inspection efficiency is improved.

The invention belongs to the technical field of agricultural product quality nondestructive testing, and relates to a food freshness intelligent monitoring device and method based on olfactory visualization. The device takes an olfaction visualization technology as a core, combines a deep learning algorithm and an Internet of Things technology, and mainly comprises portable detection equipment and an intelligent management cloud platform based on the Internet of Things; wherein the portable detection equipment adopts a main control-edge computing-sensing terminal three-stage heterogeneous framework, and a separated sample reaction chamber is designed, so that real-time acquisition of images of the olfactory sensor is realized. In the monitoring process, firstly, images before and after reaction of a sample and an olfactory sensor are collected, color difference extraction is carried out on the original images, an olfactory sensor data set is established, and a FousNet model is trained by utilizing the data set; and finally, accurately predicting the content of physicochemical indexes of the freshness of the food by utilizing a FousNet model, monitoring and evaluating the freshness of the food in real time, and providing technical support for intelligent management of the freshness of the food.

The invention discloses a plug-in mounting and separating tool special for underwater operation and an operation method. The plug-in mounting and separating tool comprises a plug-in mounting male connector, a plug-in mounting female connector, an in-situ sample storage tank, a hose and an operation handle. The plug-in female joint is connected with the storage tank through a hose, and the plug-in male joint is fixedly connected with the operating handle. A guide ring is arranged at the front end of the plug-in male connector, and a guide support is arranged at an inlet of the plug-in female connector. And sealing plugs driven by springs are arranged in the two parts and are kept sealed in a normal state. And a limiting insertion rod is arranged in the insertion female joint. And a compensation film and a compensation film spring are arranged in the storage tank. During insertion, the guide ring is matched with the guide support, the two sealing plugs abut against each other to be opened to form a channel, the limiting insertion rod is automatically locked, and a sample flows into the reagent bag under the action of the compensation film spring. During separation, the limiting insertion rod is separated, and the sealing plug automatically resets for sealing. The device is compact in structure and reliable in operation, adapts to a full-sea-depth environment, can realize unpowered transfer and recovery of underwater samples, and has important engineering application value.

The utility model relates to the technical field of medical laboratory equipment, and discloses a medical laboratory automatic assembly line and a sample support rail transfer device, the sample support rail transfer device comprises a reversing disc rotatably arranged between a sample injection rail and a cache rail and a reversing power assembly used for driving the reversing disc to rotate; the reversing disc is fan-shaped, and one end of the reversing disc is provided with a reversing groove which is matched with the sample support to drive the sample support to rotate; when the reversing disc is located at the working position, one end of the reversing disc is matched with the partition plate to separate the sample injection track from the cache track; when the reversing disc is located at the pre-track-changing position, the reversing disc cuts off the sample injection track, and the direction of the reversing groove is opposite to the sample injection direction of the sample injection track, so that the sample support enters the reversing groove along the sample injection direction; when the reversing disc is located at the track transfer position, the reversing groove is aligned with the cache track, the orientation of the reversing groove is the same as the cache direction of the cache track, so that the sample support is separated from the reversing groove, the structure is simple, the cost is low, the track transfer action is simple, and the track transfer efficiency is high.

The invention relates to a rapid and low-cost single-sample three-dimensional fluorescence-parallel factor analysis method, which belongs to the technical field of environmental engineering, and comprises the following steps: firstly, continuously passing a water sample to be analyzed through a plurality of solid-phase extraction small columns, and respectively collecting and separating the samples according to column volume multiples; secondly, carrying out ultraviolet visible spectrum analysis on the solid-phase extraction small column separation sample, and simultaneously analyzing the three-dimensional fluorescence spectrum of one sample arranged in the middle according to the amplification sequence in the original water sample and the solid-phase extraction small column outflow amplification sample; then forming a fluorescence quantum yield characteristic matrix of the solid-phase extraction small column separation sample by utilizing the three-dimensional fluorescence spectrum and the ultraviolet visible light spectrum of the amplified sample; reconstructing three-dimensional fluorescence spectrums of all other amplified samples according to the fluorescence quantum yield characteristic matrix and the ultraviolet visible light spectrums; and finally, carrying out parallel factor analysis on the three-dimensional fluorescence spectrums of the amplified sample and the raw water sample to realize rapid and low-cost single-sample three-dimensional fluorescence-parallel factor analysis of the sample.

The present application provides an automatic analysis device with HPLC, which can automatically determine the completion of column equilibration for preparation action of measurement, and determine the error position when an error occurs during equilibration. The automatic analysis device (100) comprises: a liquid feeding part (102) with a liquid feeding device (106) and a liquid feeding flow path (C0) and feeding mobile phase; a sample introduction part (103) for introducing sample into mobile phase; a separation column (113) for separating sample into multiple components; a detector (105) for detecting components; and a control part (114). The pressure sensor (107) detects the pressure of the liquid feeding flow path (C0), and the control part (114) calculates the pressure rise rate after the start of mobile phase feeding, the compression pressure change amount and the pressure average after the mobile phase feeding lasts for a certain time based on the pressure detected by the pressure sensor (107), and determines the completion of equilibration of the separation column (113).

The present invention is an audiovisual emotion classification method based on an improved ConvMixer network and dynamic focal loss, including: 1) collecting videos involving the human facial area expressing emotions, extracting image sequences and audio signals from the videos, and converting the audio signals into mel cepstral coefficient spectrograms; 2) constructing a ConvMixer network combined with an adjacency matrix, and extracting visual features using the ConvMixer network combined with the adjacency matrix; 3) extracting auditory features from the mel cepstral coefficient spectrograms using a ResNet34 network; 4) constructing a feature fusion and classification network for fusing visual features and auditory features, and performing emotion classification on each video according to the fused features; 5) training the network, and calculating the training loss through a focal loss function that fuses dynamic weights. It overcomes the problems of existing methods that focus on extracting local features of video frames while ignoring global features, and the loss function cannot make the model focus on difficult-to-separate samples, etc.

This invention discloses a method for optimizing the direction-finding time efficiency of pulse signals in direction-finding equipment, belonging to the fields of radio communications and radio spectrum monitoring. The design utilizes the periodicity of pulse signals, such as those from radar, to determine the currently sampled data using a single direction-finding threshold. Separate sampled data exceeding the threshold is then combined and filled in the data format required by the direction-finding equipment, eliminating time losses caused by switching. Compared to traditional direction-finding methods, this method can improve the measurable pulse time efficiency from microseconds to nanoseconds.

The invention provides a quantitative detection method for extracellular vesicles based on self-interference spectrum reconstruction, and relates to the crossing field of biomedical detection and optical engineering. The method comprises the following steps: adding a clinical sample into a digital micro-fluidic chip, and separating sample liquid drops and liquid drops with functional modified magnetic beads through an electrode; mixing the two liquid drops, adding a vesicle binding solution, mixing, and incubating; fixing the magnetic beads through magnetic control, removing the solution, and adding deionized water to clean the magnetic beads; after removing the magnetic bead cleaning solution, adding a vesicle eluent and the magnetic beads for incubation; liquid drops containing extracellular vesicles are separated out; transferring the liquid drops containing the extracellular vesicles to the upper part of a gold-plated slide, incubating and then removing the liquid drops; washing the hybridized gold-plated glass slide with deionized water; and detecting the number and particle size distribution of the vesicles by using a self-interference spectral imaging system. According to the invention, quantitative counting, particle size measurement and surface protein marker detection of extracellular vesicles can be realized at the same time, and quantitative imaging precision and detection efficiency of single vesicles are improved.

The utility model belongs to the technical field of magnetic solid-phase microextraction, and relates to a simple magnetic solid-phase microextraction device for a laboratory. The device comprises a magnetic separation frame capable of processing samples in batches and flexibly controlling an external magnetic field, and a separation tube capable of rapidly separating sample liquid. The magnetic separation frame comprises a separation frame main body with an isosceles trapezoid longitudinal section, a handle, test tube grooves positioned on the front side and the rear side of the separation frame main body, a test tube positioning clamping groove, a test tube arc mask, an adjustable magnetic block clamping groove, a movable magnetic block, a magnetic block fixer, and a sample receiving groove comprising a first surface and a second surface of the sample receiving groove. The separation tube can quickly separate sample liquid and comprises a threaded tube cap, a separation tube body, a sealing head liquid guide tube, a through hole with an upper opening, a small liquid outlet and a handle. According to the device, the whole set of flow of magnetic solid phase extraction can be completed in one set of device, the operation is simple, tedious and repeated manual operation is reduced, batch sample treatment is met, and meanwhile, the defects of high cross contamination probability and poor controllability in the extraction process can be avoided.

The utility model relates to the technical field of loading arms, and discloses an automatic sampling and analyzing device for tank car filling. The automatic sampling and analyzing device for tank car filling comprises a sampling pipe, one side of the sampling pipe is connected with a sample independent taking-out mechanism, and an equipment internal scraping mechanism is installed in the sampling pipe. The inner pipe and the connecting pipe are arranged in the sampling pipe, the scraping disc is arranged above the middle of the connecting pipe and connected with the connecting pipe through the connecting rod, and the inner pipe is in seamless connection with the butt joint pipe below the increasing and decreasing valve body, so that the inner pipe and the connecting pipe can move up and down through the change of the liquid height; according to the sampling device, the scraping disc is arranged, the butt joint port is formed in one side below the scraping disc, liquid is conveyed and sampled through the butt joint port, residual samples in the sampling pipe can be scraped and cleaned through the vertical movement of the scraping disc after conveying, meanwhile, the inner wall of the sampling pipe can be cleaned through clear water, and the sampling pipe can be used without pollution.

A method of operating an analytical instrument comprises ionising a sample to produce sample ions; performing a first ion separation scan by separating sample ions according to a first physico-chemica

The utility model discloses a low temperature scanning tunnel microscope separating type sample support capable of rapidly replacing samples, comprising a first mother support, a second mother support and a son support, the surface of the first mother support is provided with a boss, the boss is used for fixing a to-be-tested sample, the second mother support is provided with a heating zone, the surface of the son support is used for fixing a standard sample, and the boss is used for fixing the to-be-tested sample. The surface of the first mother support and the surface of the second mother support are each provided with a screw used for fixing the son support, the first mother support, the second mother support and the son support are each provided with an extended grabbing arm, the extended grabbing arms are provided with mechanical arms, and the mechanical arms are used for transferring the son supports on the surfaces of the first mother support and the second mother support. The utility model has the advantages of high use efficiency, effective reduction of thermal drift, and more accurate imaging.

The invention relates to a method for controlling a freeze-dryer (LYO1) which is designed to subject a total set of vessels (V1 to V9), referred to as vials and having contents to be dried, to a freeze-drying process and which comprises at least one temperature measuring system designed to sense an instantaneous temperature in at least one sample vial from the total set of vials (V1 to V9) and at least one process flow controller (PFC1) designed to control the temperature of at least one placement surface of the vials in the freeze-dryer at least in a primary drying phase according to a specified temperature profile over time, the method being characterized by a) sensing, in the sample vial, a characteristic temperature rise reflecting progress of the primary drying, b) carrying out the further freeze-drying process in a defined manner according to the sensed characteristic temperature rise or a plurality of characteristic temperature rises sensed for a plurality of separate sample vials. According to a first aspect of the invention, an individual placement surface temperature is estimated for the (relevant) sample vial from the sensed characteristic temperature rise(s). According to a second aspect, an end point of the primary drying phase is identified or predicted from the characteristic temperature rises of a plurality of sample vials. The invention also relates to a corresponding controller for a freeze-dryer and a corresponding freeze-dryer.

The invention relates to a removable sample holder for an analytical instrument or apparatus utilizing a prism. For example, the sample device of the present invention may be used in surface plasmon resonance (SPR) spectroscopy devices, plasma-waveguide resonance (PWR) spectroscopy devices, and other spectroscopy devices using prisms known to those skilled in the art. The invention also relates to a method of using the same. A sample holder device (100) includes a prism holder (200) and a sample holder (300). Unlike conventional SPR and PWR instruments with built-in sample chambers, the sample holder device (100) of the present invention provides separate sample chambers that can be easily removed and replaced. Furthermore, the sample holder device (100) of the present invention allows a user to manufacture a customized sensor chip by allowing easy replacement of the prism.

The embodiment of the utility model relates to the technical field of medical instruments, and discloses an analysis device and a blood analyzer, the analysis device comprises a rack, a disc assembly, a driving system and a detection assembly, the rack is provided with a base, the disc assembly is rotatably arranged on the base, and the driving system is arranged on the base; the disc assembly is provided with a plurality of detection stations arranged in the circumferential direction, the disc assembly is used for containing samples, the driving system comprises a first driving motor and a magnetic rod lifting assembly, the first driving motor is in transmission connection with the disc assembly, and the magnetic rod lifting assembly is used for stirring and separating the samples. The detection system comprises an optical detection unit, an electrochemical detection unit and an impedance detection unit, and the optical detection unit, the electrochemical detection unit and the impedance detection unit are respectively arranged corresponding to different detection stations. By means of the mode, continuous automatic detection of multiple samples is achieved, and the detection efficiency is remarkably improved.

1. Name of the designed product: Sealer and its main body of gradient dispenser. 2. Overall use of the product: The designed product is used as a tube sealer or heat sealer of a gradient dispenser. Gradient dispenser is a laboratory instrument used to create and dispense density gradient for sample separation and purification. The gradient dispenser is configured to automate a gradient containing reagents of different densities for a centrifugation process to separate sample components according to their different densities. The designed product is used to seal the container (e.g. test tube) after the gradient is dispensed into the container. Partial use of the product: The partial design of claim 2, 3, 4 is used as the main body of the sealer. 3. Design points of the designed product: The shape of the solid line shown in each view. 4. Picture or photo that best shows the design points: The perspective view of claim 1. 5. Claim 1 is designated as the base design. 6. Other circumstances that need to be explained: The dotted line in each view is shown for illustration purposes and does not constitute part of the claimed design of this design application. The dashed line in each view represents the boundary between the claimed part and other parts.

The present invention discloses a system and method for efficiently processing multiple samples using a BIB system. An exemplary method for efficiently processing multiple samples using a BIB system according to the present invention includes: removing a separate sample holder containing a sample from a storage location within the BIB system, wherein the BIB system includes a plurality of sample holders positioned in one or more storage locations; loading the separate sample holder onto a sample stage, the sample stage being configured to hold the sample holder during polishing of the corresponding sample held by the separate sample holder; and causing a BIB source to emit a broad ion beam toward the sample, wherein the broad ion beam removes at least a portion of the sample upon which the broad ion beam is incident. Once the desired portion of the sample is removed, the sample holder is removed from the sample stage and loaded back into the storage location.

This utility model discloses a drill-and-take separation type farmland soil sample collection device, comprising: a movable chassis for communication with a microcontroller; a drilling mechanism; a soil-taking mechanism; a collection mechanism including a telescopic push rod, a collection box, a stepper motor, and a six-hole tray shaft-driven to the stepper motor drive end. Both the telescopic push rod and the six-hole tray are for communication with the microcontroller. The collection box is slidably mounted on the frame structure along the arrangement direction of the drilling and soil-taking mechanisms. The six-hole tray is rotatably connected to the collection box and has six sample-holding slots distributed on the same circumference. A navigation component is used for communication with the microcontroller and for collecting and storing three-dimensional spatial data of each sampling point. This drill-and-take separation type farmland soil sample collection device can complete the collection of soil samples from multiple points and store the soil samples from each sampling point separately, reducing labor intensity and improving sampling efficiency and accuracy.

The invention belongs to the technical field of tumor marker detection, and particularly relates to a method for detecting a tumor marker based on magnetic separation and super-hydrophobic convergence strategy SERS (Surface Enhanced Raman Scattering). A strategy of magnetic separation capture-probe separation-probe convergence is adopted, the magnetic balls capable of capturing the tumor markers in the sample are added, the tumor markers are rapidly extracted from the sample through magnetic separation, and the operation is simple and convenient; adding an SERS probe capable of being specifically combined with the marker, and separating the Raman probe on the surface of the tumor marker from the magnetically separated sample by adopting a desorption process; finally, the desorbed Raman probes are converged through the super-hydrophobic SERS substrate, Raman signals are collected, the method has the advantages of being high in specificity and sensitivity, good in reproducibility and the like, the sensitivity and reproducibility of SERS detection of tumor markers are improved, and the bottleneck problem that an existing detection method restricts actual application of SERS in early screening of the tumor markers is solved.

A nuclear magnetic resonance (NMR) spectrometer includes an array of distinct, separate samples to be tested, a set of optically pumped magnetometers (OPM), an inhomogeneous magnet having a bore configured to accept the array of samples, a zero-to- ultra-low field detection center, a field cycler stage to transport the array of samples between the inhomogeneous magnet and the detection center along a path, the path having a guiding field solenoid; and a computer to control operation of the spectrometer.

The application provides a kind of extracellular vesicle quantitative detection method based on self-interference spectrum reconstruction, it is related to the intersection field of biomedical detection and optical engineering.The method comprises: adding clinical sample into digital microfluidic chip, and separating sample droplet from droplet with functional modification magnetic bead by electrode;After mixing two droplets, add vesicle binding solution and mix, then incubate;Through magnetic control fixed magnetic bead, remove solution, then add deionized water to clean magnetic bead;After removing magnetic bead cleaning solution, add vesicle eluent and incubate with magnetic bead;Separate out the droplet containing extracellular vesicle;Transfer the droplet containing extracellular vesicle to the upper of gold-coated glass, remove droplet after incubation;Use deionized water to clean hybridized gold-coated glass;Use self-interference spectrum imaging system to detect vesicle quantity and its particle size distribution.The application can realize extracellular vesicle quantitative counting, particle size measurement and surface protein marker detection simultaneously, and improve single vesicle quantitative imaging precision and detection efficiency.

1. Name of the designed product: centrifuge product chamber. 2. Use of the designed product: to contain and separate samples for double pusher centrifuge. 3. Design points of the designed product: in perspective view. 4. Picture or photo that best shows the design points: perspective view.

A method of operating an analytical instrument comprises ionizing a sample to produce sample ions; (i) performing a first ion separation scan by separating sample ions according to a first physicochemical property and analyzing the separated sample ions by performing one or more MS1 mass analysis scans; and (ii) performing a second ion separation scan by separating sample ions according to the first physicochemical property and analyzing the separated sample ions by performing a plurality of MS2 mass analysis scans. Each MS2 scan of the plurality of MS2 mass analysis scans uses one MS2 isolation window of a plurality of MS2 isolation windows. The method further comprises analyzing MS1 data acquired from the one or more MS1 mass analysis scans and configuring the plurality of MS2 isolation windows based on the analysis of the MS1 data.

According to the grain sampling detection and separation sample delivery box and delivery method, doors are arranged on the two sides of the sampling detection and separation sample delivery box, the sampling detection and separation sample delivery box is installed on the wall of a detection room, an electromagnetic locking mode is adopted, when the door is opened on one side, the other side door is powered on and locked, the suction force is about 120 kg, and the sampling detection and separation sample delivery box cannot be opened. A gravity sensing plate is arranged on the lower side of the box body, an alarm can be given only when an inspection person places a grain sample on the gravity sensing plate in the box body and closes an opening and closing door on the side face, a 12v radar intelligent human body infrared sensing switch is arranged outside the sampling inspection box body, the sensing angle can be 120 degrees, and the sensing distance can be adjusted from 0 m to 8 m. And an inspector can open the box door only after the sample sending and sampling person leaves. After the gravity sensor is triggered, an alarm lamp in the inspection room flickers and gives out warning sound to remind an indoor inspector to sample; in the whole sample sending process, the contact between a sampling person and an inspection person is avoided, the risk of mutual greeting is avoided, and'sampling separation and blind sample detection 'is really realized.

The utility model discloses a geological sample fine crushing processor which comprises a box body and a mounting box, a screening assembly is arranged in the box body, and the screening assembly comprises a spring, a cam, a fixed seat and a universal ball. By arranging the screening assembly and starting the motor, the two collecting boxes move back and forth, the dynamic screening mode can more effectively separate samples with different granularities compared with static screening, the samples with different granularities can be more effectively separated, the samples are prevented from being stacked and blocked in the screening process, and the screening efficiency is improved. Therefore, the screening uniformity and quality are ensured; the motor is started, the rotating shaft rotates to drive the mounting plate and the fixed shaft to rotate, geological samples on the surface of the filter screen are ground and crushed, the fine crushing efficiency of the geological samples is improved, the phenomenon of uneven fine crushing is avoided, meanwhile, the samples on the filter screen can be scraped to the discharging opening in time through the scraping plate, it is ensured that the samples cannot be accumulated on the filter screen, and the working efficiency of the geological samples is improved. Therefore, the continuous working efficiency of the material pressing roller is kept.

The article to which the design of this application relates, an “electrophoresis analyzer,” is a machine that separates samples such as blood by electrophoresis and measures and analyzes the presence or absence and characteristics of DNA / RNA, etc.