107results about How to "Convenient and efficient detection" patented technology

Lateral flow assay devices and methods for detecting a first member of a specific binding pair in a sample which comprises a plurality of nonspecific binding pair members are adapted for two step determinations. In one embodiment, a two step lateral flow assay method for identifying IgE antibodies in a sample comprises applying a sample to a sample port of a device, wherein the device is adapted to deliver the sample to a lateral flow matrix having a plurality of IgE antigen species immobilized at respective positions at a first location The two step method further comprises allowing the sample to travel along the lateral flow matrix through the immobilized plurality of IgE antigen species to a second location downstream of the first location, applying liquid buffer to the lateral flow matrix to mobilize labeled reagent which is adapted to bind anti-IgE antibody and is dried on the lateral flow matrix at a location upstream of the delivery of the filtered sample to the lateral flow matrix, and allowing labeled reagent mobilized by the liquid buffer to travel along the lateral flow matrix through the immobilized plurality of IgE antigen species to a location downstream of the first location. Further embodiments comprise additional lateral flow immunoassay devices and methods for identifying IgE antibodies in a sample.

The present invention is directed to deconvolution and normalization of assay data. The present invention includes a control and analysis system, used in conjunction with a signal generation and detection apparatus, for capturing, processing and analyzing images of samples having resonance light scattering (RLS) particle labels. The control and analysis system processes instructions and algorithms for performing multiplexed assays of two or more colors, for example, to allow separation and analysis of detected light that contains information from two or more different types or sizes of RLS particles. The multiplexing analysis software is preferably incorporated within the system of the present invention, and the multiplexing analysis is preferably performed in real-time during a scanning or assay procedure. The invention provides for a computer readable medium containing instructions for carrying out the same.

The invention discloses a gesture remote control system based on vision. The gesture remote control system comprises an image capture device for capturing a series of images of an object; a gesture recognizing device for recognizing an object gesture from the series of images captured by the image capture device and sending a recognition result to an operation command trigger device; the operation command trigger device for triggering a preset operation command according to the recognition result sent by the gesture recognizing device. The gesture recognizing device comprises a hand detecting component for detecting the object hand from the images captured by the image capture device; a hand tracking component for tracking the object hand in the following images when the hand detecting component detects the object hand in one image; a gesture recognizing component for determining movement of the object hand according to the object hand detected by the hand detecting component and the object hand tracked by the hand tracking component and recognizing the object gesture according to the determined movement of the object hand.

Apparatus and methods for generating an encoded audio bitstream, including by including substream structure metadata (SSM) and/or program information metadata (PIM) and audio data in the bitstream. Other aspects are apparatus and methods for decoding such a bitstream, and an audio processing unit (e.g., an encoder, decoder, or post-processor) configured (e.g., programmed) to perform any embodiment of the method or which includes a buffer memory which stores at least one frame of an audio bitstream generated in accordance with any embodiment of the method.

Oligonucoleotides useful in the detection of a nucleic acid target sequence in a sample.

The invention discloses a system and a method for testing the user perception effect of video telephony (VT) and streaming media, which are applied to video services in a time division-synchronization code division multiple access (TD-SCDMA)/high speed downlink package access (HSDPA)/high speed uplink package access (HSUPA)/high speed packet access + (HSPA+)/long term evolution (LTE) system. The system comprises TD-SCDMA system test terminals, a VT video test server, a result analysis server, a streaming media test server, a central database, a short message application server, an online upgrade server, a Web server and an application logic server, wherein the test terminals, the central database and each server perform data exchange by the application logic server. The system for testing the user perception effect of the video services, such as video telephony and streaming media services, in a TD/SCDMA/HSDPA/HSUPA/HSPA+/LTE wireless network is flexibly deployed, automatically run, remotely controlled and upgraded and easy to use, and can conveniently and highly-efficiently detect the running quality of the VT and streaming media services in the wireless network, and obtain 7*24-hour test results of a great number of test points by arranging the test terminals in different environments without huge manpower and material resources.

The invention belongs to the technical field of bridge detection devices, particularly to a detection vehicle device for a bridge damage diagnosis method based on an axle coupling system. The detection vehicle device includes a movable trolley which can move on a bridge to be detected; a signal pickup device used for picking up a vibration signal transmitted by the bridge to be detected to the movable trolley; and a signal collection device connected with the signal pickup device and collecting the vibration signal picked up by the signal pickup device. The detection vehicle device for the bridge damage diagnosis method based on the axle coupling system can comprehensively, effectively and accurately acquire a bridge response signal in real time, thereby satisfying the requirements of the bridge damage diagnosis method based on the axle coupling system.

The invention relates to a multifunctional pipeline detection device which comprises a detection rod, a detector, a driving mechanism, a left positioning frame and a right positioning frame. One end of the detection rod is rotatably connected with the left positioning frame; the other end of the detection rod axially penetrates through an inner cavity of a pipeline to be detected so as to be rotatably connected with the right positioning frame; the left positioning frame or the right positioning frame is provided with the driving mechanism; the detector is arranged in the middle of the detection rod; a detecting instrument capable of detecting the flatness of the inner wall of the pipeline to be detected, the precision of a welding seam and the concentricity of the welded pipeline is arranged on the detector; the detecting instrument is connected with detection equipment located outside the pipeline to be detected through signals; a left adjusting device capable of moving up and down to adjust the height of the left end of the detection rod is arranged on the left positioning frame; and a right adjusting device capable of moving up and down to adjust the height of the right end ofthe detection rod is arranged on the right positioning frame. The multifunctional pipeline detection device provided by the invention has the advantages that the detection function is diversified, thedevice can be applied to detection of pipelines with different pipe diameters, and installation and detection are conducted conveniently and efficiently.

The invention discloses a method for detecting heavy metals in carbohydrate agricultural products and application thereof. The method of the invention comprises the following concrete steps: homogenizing a carbohydrate agricultural product, and leaching with a diluted acid; removing insoluble substances, centrifuging, and collecting supernatant to obtain a solution containing heave metal; and directly using the to-be-tested sample solution to enzyme linked immunosorbent assay, and obtaining heavy metal content in the to-be-tested sample. The method of the invention can be used for leaching heavy metal ions copper, lead and cadmium in vegetables, fruits and foodstuff agricultural products, which not only quickens the time of leaching heave metal from a sample, but also reduces environmental pollution brought by the conventional sample pretreatment technology. The method has mild reaction conditions, and achieves rapid, efficient and convenient field detection of agricultural products.

The invention provides a detection probe as well as a preparation method and application thereof. The detection probe comprises a probe A and a probe B, wherein the probe A is combined with a graphenequantum dot; the probe B is combined with gold nanoparticles; the nucleotide sequence of the probe A is as shown in SEQ ID NO:1; the nucleotide sequence of the probe B is as shown in SEQ ID NO:2; since the graphene quantum dot has an intense fluorescent signal in the position of the wavelength of 450 nm under radiation of excited light with the wavelength of 390 nm, the graphene quantum dot and agold nano material can be adsorbed together by virtue of the interaction of a DNA (Deoxyribonucleic Acid) nucleotide chain, and then the fluorescent signal of the graphene quantum dot can be quenched; and since lead ions have a shearing function on the nucleotide chain on the graphene quantum dot, the graphene quantum dot can be separated from the gold nanoparticles, the fluorescent signal on thegraphene quantum dot can be recovered, and the concentration of the lead ions can be detected according to the intensity of the fluorescent signal. The detection probe provided by the invention can be adopted to detect the concentration of lead ions, is efficient and concise and has wide application prospects.

Disclosed is current driver circuit comprising a bandgap reference circuit for generating a fixed current and a current proportional to absolute temperature (PTAT), a temperature compensator for combining the fixed and PTAT currents and forming first and second temperature compensated currents, a current control circuit for modifying said first and second temperature compensated currents in response to signals representing the characteristics of a load device and a driver circuit for amplifying and supplying a selected one of said first and second temperature compensated currents to said load device. Also disclosed is a method of supplying a precisely controlled current by generating a constant current and a current proportional to absolute temperature (PTAT), combining these two currents and providing temperature compensated currents, modifying the temperature compensated currents with a programmed reference signal and supplying a precisely controlled current to a load device.

The invention provides a traditional Chinese medical four-diagnostic detector and a detection method. The detector comprises a main body, an image collecting box, an auricular point pen, a pulse manifestation collecting arm, a PC, a communication device and a fingerprint identifying device; the image collecting box, the auricular point pen, and the pulse manifestation collecting arm are arranged on a table face of the main body; the PC is embedded at the inner part of the main body; the image collecting box, the auricular point pen, and the pulse manifestation collecting arm are connected with the PC, and the fingerprint identifying device is coupled with the PC. The traditional Chinese medical four-diagnostic detector is simple in operation, and can support touch and mouse operations at the same time by applying an image operation interface; the data memory is high-efficient and convenient, and data can be uploaded to a server through network to perform the data share.

The invention provides a sample pretreatment method for detecting fat-soluble vitamins in serum through high performance liquid chromatography-tandem mass spectrometry. The specific protein precipitant is adopted and mixed with the internal standard substance working solution to form the internal standard solution, so that sample pretreatment is simply and efficiently completed, no extra sample enrichment or other operation is needed, the recovery rate of fat-soluble vitamins A, E, K1 and K2 in a serum sample can be remarkably improved, and the pretreatment cost of the sample is reduced, so that the detection sensitivity of the fat-soluble vitamins in the serum is greatly improved, and the accuracy and the stability of a detection result can be ensured. Meanwhile, the invention further provides application of ammonium acetate to preparation of the protein precipitant.

The invention is applicable to the technical field of food detection and provides a remote food bacteria detection control method based on microscopic vision. The method comprises the following steps: 1, controlling a microscope to detect a sample to be detected after a detection instruction in a wireless signal form or a wired signal form is received, and acquiring a detection image; 2, controlling and automatically adjusting the detection parameters of the microscope, detecting the sample to be detected, and acquiring a detection image; and 3, repeating the step 2 until the definition of the latest detection image is lower than the definition of the previous detection image if the definition of the detection image acquired in the step 2 is higher than the definition of the detection image acquired in the step 1, and taking the previous detection image as an optimal detection image for performing food bacteria detection. According to the te food bacteria detection control method based on microscopic vision, the bacteria detection result can be displayed in an all-around and multi-level mode, and the safe and convenient detection of the food bacteria is realized.

The invention discloses a novel coronavirus detection kit and a preparation method and a detection method thereof. The detection kit comprises a handle area, a test area, a gold pad, a sample pad anda blood filtering membrane, wherein the handle area is prepared from absorbent paper; the test area takes a nitrocellulose membrane as a carrier, and the nitrocellulose membrane is respectively coatedwith an anti-rabbit IgG polyclonal antibody, an anti-human IgG antibody and an anti-human IgM antibody from top to bottom; the gold pad comprises a polyester film, and the polyester film is coated with a gold-labeled conjugate formed by combining colloidal gold and a novel coronavirus recombinant antigen; the sample pad comprises glass fibers soaked in a buffer solution; and the blood filtering membrane is attached to the sample pad. The novel coronavirus detection kit adopts an immune colloidal gold chromatography technology, and colloidal gold is used as a tracing marker to be applied to antigens and antibodies in a novel immunolabeling technology. Novel coronavirus IgG/IgM antibodies in human serum, plasma and whole blood samples are qualitatively detected in vitro, and the detection process is simple to operate.

The invention relates to a curved screen edge detection device, which belongs to the technical field of display screen detection. The curved screen edge detection device comprises a detection table, acarrying unit which is fixedly connected to the detection table, and two detection units which are oppositely arranged. A detection channel is reserved between the two detection units, the carrying unit penetrates through the detection channel, the two detection units are connected to the detection table, and the detection ends of the two detection units face the detection channel. The curved screen edge detection device can automatically detect the edge of the curved screen, and the curved screen edge detection efficiency is improved.

The invention discloses an SERS-fluorescent dual mode probe based on a DNA chain replacement principle. The SERS-fluorescent dual mode probe is prepared from a DNA1-2 double strand chain modified by aferroferric oxide magnetic composite material with a certain particle size and another DNA3 single strand chain; and the DNA1 and the DNA3 contain the same aptamer, the tail end of the DNA2 is modified with a fluorogen FAM6, and the tail end of the DNA3 is modified with a fluorogen Cy5. The invention further discloses a preparation method and application of the SERS-fluorescent dual mode probe based on the DNA chain replacement principle. According to the SERS-fluorescent dual mode probe based on the DNA chain replacement principle, two types of signals of raman and fluorescence can be used for simultaneously detecting biomarkers in superficial living cells, detecting is fast, convenient and efficient, the specificity is high, the sensitivity is high, and the accuracy is high.

The invention discloses a label detection apparatus, a label detection system and a label detection method. The label detection apparatus comprises a frame, the frame is provided with a sensor used for sensing a product, a code scanner, an industrial CCD camera used for detecting a label, and a controller, wherein the sensor, the code scanner and the industrial CCD camera are connected with the controller; the frame is also provided with an alarm apparatus, and the alarm apparatus is connected with the controller; and the frame is also provided with a light source used for illuminating the industrial CCD camera. According to the invention, when the sensor detects arrival of the product, the code scanner performs code scanning on the product, then, the industrial CCD camera performs shooting comparison on the label of the product, comprehensive automatic detection of the product label is realized, the detection is convenient and efficient, the label detection efficiency and accuracy are improved, labor is saved, and the production efficiency is improved.

The invention relates to a bottle cap quality on-line detection system which comprises a workbench, a conveying roller way, a qualified product roller way, an unqualified product roller way, an in-place sensor, a counter, a CCD (Charge Coupled Device) camera, a way changing mechanism and a control circuit, wherein the conveying roller way is connected with the qualified product roller way and the unqualified product roller way by the way changing mechanism; the in-place sensor and the counter are mounted on the side surface of the conveying roller way by a rack; the CCD camera is mounted on the side surface of the conveying roller way by the rack; the way changing mechanism comprises a driving motor and a shifting piece; and the control circuit is electrically connected with the conveying roller way, the qualified product roller way, the unqualified product roller way, the in-place sensor, the counter, the CCD camera and the driving motor. The bottle cap quality on-line detection system is high in detection precision and field adaptability; an equipment structure is simplified greatly; the volume and the deadweight of equipment are reduced; the quality of bottle caps can be detected efficiently, conveniently, quickly and completely; and the qualified bottle caps and the unqualified bottle caps can be accurately distinguished and counted.

The invention provides a railway track defect detection method and system. The method is applied to a railway track defect detection system. The method comprises the following steps: preprocessing anoriginal rail image to obtain a first rail image; inputting the first rail image into a rail area positioning module for processing; determining left and right boundaries of the track in the originaltrack image according to the output of the track area positioning module; segmenting a first rail image from the original rail image according to the left and right boundaries; preprocessing the firsttrack image to obtain a second track image; utilizing a preset window to slide on the second track image at a preset step length, and inputting the area image placed in the preset window into a defect classification module to obtain a defect detection result; and according to a defect detection result, framing the detected defect area in the second track image. Whether the rail has defects or notand defect types can be quickly and accurately recognized.

The invention discloses an antenna test method and device for electronic equipment and the electronic equipment, and the method comprises the steps: generating a first test signal according to a triggering instruction; sending out the first test signal through a first antenna assembly of the electronic equipment; receiving the first test signal through a second antenna assembly of the electronic equipment to form a corresponding second test signal; comparing the first characteristic information of the first test signal with the second characteristic information of the second test signal to form a corresponding comparison result; and determining whether the first antenna assembly and/or the second antenna assembly meet/meets a preset assembly requirement or not under the condition that thecomparison result meets the preset regulation. According to the method, the installation condition of the antenna can be conveniently and efficiently detected in the assembling process of the antennaof the electronic equipment, automatic detection can be achieved without the help of other detection equipment except the electronic equipment, the detection efficiency is improved, and the detectioncost is effectively reduced.

The invention belongs to the coupling coefficient detection technology field among inductance coils and provides a coupling coefficient detection circuit among magnetic coupling inductance coils and a method thereof. The circuit and the method are used to overcome defects that an existing detection method is complex; a calculating expression is not unique and an error is large. The detection circuit comprises a direct voltage power supply, an inverter, a primary series capacitor, a primary variable trimming resistor, a primary inductance coil, a secondary inductance coil, a secondary series capacitor, a secondary variable trimming resistor and a detection resistor. The direct voltage power supply is connected to two input terminals of the inverter. The primary variable trimming resistor, the primary series capacitor and the primary inductance coil are successively connected and then are connected to two output terminals of the inverter so as to form a primary resonance loop. The secondary inductance coil, the secondary series capacitor, the secondary variable trimming resistor and the detection resistor are successively connected so as to form a secondary resonance loop. The detection circuit is simple and is convenient for constructing. An analytical expression of a coupling coefficient is accurate and high-efficient.

The present invention relates to a method for specifically detecting Mycobacterium tuberculosis and nontuberculous mycobacteria by simultaneously amplifying and analyzing target genes using various primers and probes, and a kit using same. The method of the present invention is capable of selectively detecting Mycobacterium tuberculosis and nontuberculous mycobacteria with very high efficiency through a multiplex real-time polymerase chain reaction (PCR) using probes and primers specific to target genes (particularly, IS6110, 16S rRNA and β-actin). Also, the kit of the present invention is capable of conveniently and efficiently detecting the target genes in a sample through a multiplex real-time PCR. Therefore, the method and the kit of the present invention are capable of selectively detecting with ease whether or not there is an infection with Mycobacterium tuberculosis or nontuberculous mycobacteria in a sample, and can be more accurately applied to the treatment of diseases on the basis thereof.