783 results about "Analytical Testing" patented technology

An analytical test device useful for example in pregnancy testing, comprises a hollow casing (500) constructed of moisture-impervious solid material, such as plastics materials, containing a dry porous carrier (510) which communicates indirectly with the exterior of the casing via a bibulous sample receiving member (506) which protrudes from the casing such that a liquid test sample can be applied to the receiving member and permeate therefrom to the porous carrier, the carrier containing in a first zone a labelled specific binding reagent is freely mobile within the porous carrier when in the moist state, and in a second zone spatially distinct from the first zone unlabelled specific binding reagent for the same analyte which unlabelled reagent is permanently immobilised on the carrier material and is therefore not mobile in the moist state, the two zones being arranged such that liquid sample applied to the porous carrier can permeate via the first zone into the second zone, and the device incorporating means, such as an aperture (508) in the casing, enabling the extent (if any) to which the labelled reagent becomes bound in the second zone to be observed. Preferably the device includes a removable cap for the protruding bibulous member.

A front-end system accepts samples and selectively provides aliquots of those samples to selected clinical chemistry analyzers coupled to the front-end system. The front-end system is coupled to an assembly of one or more clinical chemistry analyzers that might, for example, provide complementary analytical tools so that the overall system of front-end system and clinical chemistry analyzers provides a predetermined broad range of clinical analytical testing. The testing protocols for samples input to the overall system can be independently determined. Any sample may undergo a test within one or more of the clinical chemistry analyzers or a series of tests within a single or more typically within plural ones of the analyzers, depending upon the testing sequence defined in for that sample. The front-end system automatically identifies samples, draws aliquots, and transports the aliquots to the one or more clinical chemistry analyzers coupled to the front-end system. Sample identification, handling and testing are preferably automated A within the overall system to provide complex testing with reduced operator involvement. Consequently, the overall system may facilitate reduced operator costs and a reduced likelihood of errors in the routing and processing of samples.

An automated system and method for passive testing of alcohol and drug abuse. The system enters a participant or subject into the system who is to be monitored during a probationary or other program for alcohol or drug abuse offenders. The system provides a drug testing home device or a drug testing kiosk device for use by the participant. The system enrolls the biometrics information of the participant into the computer system (e.g., finger print, voice, image, volatile compound organic gas level, and pH level). When the participant is to be tested in accordance with a testing schedule, the system validates these same biometrics of the participant, conducts the test, and then analyzes the test information for determining if the participant has been using alcohol or other drugs and should be subjected to a confirming urinalysis exam.

The present invention provides a reagent mixing device, which comprises a driving device, a transport device and a rotating part, wherein the transport device comprises a conveying mechanism for conveying a reagent kit and a mixing mechanism for mixing a reagent; the conveying mechanism is driven by the driving device to move relative to the mixing mechanism; the rotating part and mixing mechanism are in transmission matching; the conveying mechanism and the mixing mechanism are sleeved with each other to form a bearing structure. The present invention further provides a reagent mixing method. The reagent mixing device is small in size, smart in structure, easy to assemble and low in manufacturing cost. The reagent mixing method provided by the present invention is simple and reliable, high in overall operation reliability, and has very high application values in such analysis and test fields as full-automatic chemiluminescence immunoassay analyzers and biochemical analyzers.

The invention discloses a scene-based automatic driving simulation test evaluation service cloud platform and an application method thereof. The system invention is used for automatic driving simulation test and is provided with a client, a cloud and a background management terminal, the client transmits corresponding function operation requirements to the cloud through a function module interface, and the cloud drives corresponding function modules to execute corresponding functions according to the function operation requirements; and the background management terminal manages and maintainsthe cloud and the client. In platform application, the method comprises functional applications of data uploading, data fusion, scene extraction, scene labeling, scene analysis, scene generation, simulation analysis and test evaluation. The whole tool chain including the scene database, the scene extraction and labeling, the scene analysis, the scene generation, the simulation analysis, the test evaluation and the like is integrated to the cloud, unified scheduling, management and use of automatic driving simulation data and test evaluation resources are realized, and the test efficiency is improved.

The invention discloses a method for simultaneous measurement of 17 trace elements in reconstituted tobacco by using inductively coupled plasma mass spectrometry. According to the invention, microwave digestion and inductively coupled plasma mass spectrometry are combined together to measure 17 trace elements in reconstituted tobacco; a reconstituted tobacco sample is subjected to microwave digestion, and then ICP-MS measurement is quantitatively carried out through combination of a standard mode, collision/reaction cell technology and an internal standard method. Measurement results show that: 17 target elements have good linearity, a correlation coefficient r is no less than 0.9995, a detection limit is 0.001 to 0.065 mu g/L, an added standard recovery rate is 79.31 to 123.07%, and relative standard deviation is 1.15 to 6.38%. The method provided by the invention has the advantages of simple operation, short analysis time, stability, accuracy, etc. and can be used for analysis and test of large-batch reconstituted tobacco samples in the tobacco industry.

The invention pertains to the technology field of micro total analysis, relating to a three-dimensional micro-flow control chip which includes an in-situ polybutyl methacrylate pretreatment integral pole. The polymer butyl methacrylate pretreatment integral pole is prepared by ultraviolet-radiated in-situ polymerization in the micro-channel on the micro-flow control chip; the substrate of the micro-flow chip can adopt glass, silicon, polymethyl methacrylate (PMMA) or poly(dimethylsiloxane) (PDMS), and the like as base materials, and etched with micro-channel networks for fluid mixing and reaction; the cover plate adopts PDMS integral casting method to fabricate the micro-channels of the solid-phase extracting and processing unit, a fluid lead-in/lead-out hole is arranged at the position corresponding to each micro-channel opening of the substrate, and is directly bounded with the substrate, and integration of the sample pretreatment integral pole and the micro-flow control chip micro-pipeline network is realized. The chip has the advantages of easy fabrication, low cost, small sampling quantity, rapid compartment analysis, and is applicable to pretreatment, analysis and test of sophisticated biochemical samples.

The invention relates to a real-time overall test method of a network system. The network system comprises a test center system and a client terminal loopback response system. The method comprises the following steps: the test center system sends test packets to a network terminal; after the client terminal system receives the test packets, the client terminal system returns the received test packets to the test center system immediately; the test center system carries out loop detection on all the returned test packets: calculation of a delay packet and a jitter packet, and detection of a delayed packet, a repeated packet, an out-of-order packet and a lost packet; the test center system records the generated basic information of a single client terminal in a database of the center system; and all the test data of the client terminal in the database of the test center system are analyzed to obtain the status of network channels at test time intervals. The method in the invention can be carried out in real time under a network running state, and has the advantages of simple test operation, high network test coverage rate and low test cost; and test results can show the real state of the network channels.

This invention significantly reduces the frequency of hydraulic failure in the analytical line of a capsule chemistry sample liquid analysis system which can occur when the reagents required for the specific analytical test have an imperfect merger with the sample aliquot reagent in the vanish zone of the analytical line. It has been found that the dynamic surface tension of the sample aliquot reagent and the analytical reagent influence the merging process. It has also been found that optimum merging of these reagent capsules in the vanish zone can be obtained when the dynamic surface tension of the sample aliquot reagent and analytical reagent is different.

The invention relates to a method for testing seven indicative PCBs (PCB28, PCB52, PCB101, PCB118, PCB138, PCB153 and PCB180) in food with high fat content simultaneously. The method comprises the following steps: using an organic solvent to conduct extraction, concentration and decreaming on a target object and conduct two times of purification on an extracting solution, forming a standard curve, analyzing the test condition, and conducting methodology investigation and practical sample testing on factors such as linearity, recovery rate, precision and detection limit of the seven indicative PCBs in different samples. The method does not need to equip expensive pretreatment equipment to remove fat in the sample and use column chromatography pretreatment process which is complex, low in efficiency and low in flux, has the advantages of being quick in testing speed, wide in adaptive substrate range, high in sensitivity, strong in selectivity, high in accuracy and the like, can meet detection requirements on the seven indicative PCBs in the sample with high fat content by a conventional laboratory, moreover can test the content of the seven indicative PCBs in the sample with high fat content at the same time, and has the characteristics of being simple, convenient, fast, accurate and the like.

The invention discloses a 10 Gbps bit error analyzing instrument and aims to provide a bit error analyzing instrument which has low cost, simple and convenient operation and convenient carrying and issuitable for engineering field test. The 10 Gbps bit error analyzing instrument comprises an evaluation board and a single chip microcomputer of C8051 series, wherein the evaluation board can carry out communication with a PC, and a bit error test chip which is connected with equipment to be tested is arranged on the evaluation board; and the single chip microcomputer is used for carrying out communication with an upper PC and a lower test chip, and is provided with a USB interface which carries out communication with the PC and an I2C double line type serial bus which is connected with the bit error test chip to carry out communication and control. The bit error test chip provides sent bit flow and total amount of bit error to the PC through the single chip microcomputer, and the sent bit flow is obtained by test time recorded by the single chip microcomputer and appointed frequency output by the test chip. The invention has the advantages of convenience, rapidness and accurate bit error analysis test and is suitable for performance test of a 10 Gbps communication system.

The invention discloses a portable active hydraulic tester and a test method. A coarse filter of the tester is connected with a hydraulic pump, and the hydraulic pump is connected with a fine filter; the fine filter is connected with a normally-off two-position two-way electromagnetic directional valve, a pressure gauge switch and an electromagnetic relief valve; the normally-off two-position two-way electromagnetic directional valve is connected with a quick connector; the electromagnetic relief valve is connected with a two-position four-way electromagnetic directional valve, and the two-position four-way electromagnetic directional valve is connected with an oil return quick connector and a metering cylinder; the two-position four-way electromagnetic directional valve is connected with an oil tank; the metering cylinder is connected with a normally-on two-position two-way electromagnetic directional valve; and the normally-on two-position two-way electromagnetic directional valve is connected with the oil tank. The test method comprises the following steps: debugging the pressure and flow parameter calibrated by the tester; testing the pressure and flow parameters under the condition that tested hydraulic systems and components are removed respectively, drawing a coordinate graph and analyzing a test result; and completing the performance calibration of a new-manufactured hydraulic system and the performance testing of an online hydraulic system, listing the sequence of hydraulic component spare parts, and removing faults. The tester and the method have simple, convenient and fast operation.

The invention discloses a test task scheduling method based on critical paths and tabu search, belonging to the field of automatic testing system parallel test task scheduling. The method comprises the following steps of: firstly determining and analyzing a test task, initializing parameter setting, subsequently determining an initial test task sequence by adopting a priority coding mode, finding an optimal test scheme selection set under the test task sequence by using a method of tabu combination critical path so as to find an optimal test task sequence and a corresponding test scheme selection set through iteration of multiple times. According to the method, an initial task sequence which meets the constraint is provided while the tabu search is applied to solve a test task scheduling problem, an adjacent domain search range of the tabu is simplified, the redundant adjacent domain search operation is reduced, and the operation efficiency and optimizing efficiency of the test task scheduling method are improved ultimately.

The invention discloses a cognitive ability assessment system and an assessment method thereof. The assessment system comprises a cloud server and a plurality of test units realizing data transmission with the cloud server, wherein the cloud server comprises a task configuration module, a testing personnel file management module, a data presentation module and a data storage module. The task configuration module configures a corresponding test task for each test unit aiming at operating requirements and test schemes of different positions, and publishes in each test unit through the cloud server. Each test unit comprises an account login module, an assessment analysis module and a front end test module. The assessment method comprises the steps of after testing personnel logs in, testing in the front end test module, and embedding an assessment method and a standard corresponding to each test task in each assessment analysis module so as to be used for calculating a test result; transmitting a test result into the data presentation module of the cloud server, counting a score of each test content, drawing a diagram, analyzing the test result, and generating a test report.