5137results about How to "Reliable results" patented technology

The invention relates to a liquid phase chip for joint detection of multiple tumor markers and a preparation method thereof. The liquid phase chip comprises micro-balloons of a coupled antibody (at least two of the followings: AFP, CEA, CA125, CA153, CA19-9, CA242, CA72-4, PSA, HGH, Beta-HCG), corresponding biotin-labeled detection antibodies, streptavidin phycoerythrin and vegetable hydrosol or polysaccharide hydrosol which has a solute content of 1-10 wt per thousand and does not contain protein. The preparation of the liquid phase chip comprises refining and purification of hydrosol, coupling between captured antibodies and micro-balloons, preparation of biotin-labeled antibodies, dispersing the coupled micro-balloons into the vegetable hydrosol or the polysaccharide hydrosol, and the like. The liquid phase chip has the advantages of stable performance, good micro-balloon dispersivity, long preservation time, fast and convenient use and operation, small amount of samples in use, high detection sensitivity, wide linear scope and low detection cost, can detect ten tumor markers at most at one time, and requires a cost which is a quarter of the total fee of conventional methods.

This invention provides a device for determining the concentration of an analyte like glucose, cholesterol, free fatty acids, triglycerides, proteins, ketones, phenylalanine or enzymes, in a physiological or aqueous fluid like blood, serum, plasma, saliva, urine, interstitial and / or intra-cellular fluid, the device having an integrated calibration and quality control system suitable for dry reagent test strips with a very small sample volume of about 0.5 μL based on to a new sample distribution system. The production of the inventive analyte test element involves only a small number of uncomplicated production steps enabling an inexpensive production of the strips.

For assessment of a coverage of a cellular network system, in particular a CDMA cellular network system, at least one present quality value of the network system is measured at a predetermined location, under a present load of the network system. As well, at least one required quality value of the network system is determined which is required for offering a predetermined service under a predetermined load, in particular a target load, of the network system. Finally, the required quality value is compared with the measured quality value for determining whether the predetermined location is covered by the network system for the predetermined service under the predetermined load of the network system. By employing these steps, large network areas may be analyzed without influencing the traffic in the network. Reliable results are obtained without using expensive simulations depending from theoretical models and assumptions.

Video face detection apparatus in which a test image from a video sequence is compared with an image property model derived from image properties of a region detected to contain a face in a preceding image in the video sequence comprises: selecting a predetermined proportion of pixels in the region detected to contain a face in the preceding image which most closely match the image property model derived in respect of that region, thereby deriving a pixel mask; and comparing pixels in the test image defined by the pixel mask with the image property model, the mask being applied at more than one image position within the test image; a face being detected in the test image at a mask position corresponding to a lowest average difference between the image property model and pixels defined by the mask at that position.

An imaging system comprises a device to excite mechanical waves in elastic tissue, a device for measuring the resulting tissue motion at a plurality of locations interior to the tissue at a number of time instances, a computing device to calculate the mechanical properties of tissue from the measurements, and a display to show the properties according to their location. A parameter identification method for calculating the mechanical properties is based on fitting a lumped dynamic parametric model of the tissue dynamics to their measurements. Alternatively, the mechanical properties are calculated from transfer functions computed from measurements at adjacent locations in the tissue. The excitation can be produced by mechanical vibrators, medical needles or structures supporting the patient. The measurements may be performed by a conventional ultrasound imaging system and the resulting properties displayed as semi-transparent overlays on the ultrasound images.

A method and a device for adaptively controlling power in a radar device having a radar transmitter and a radar receiver are provided, in particular for applications in vehicles. The radar signals are emitted, and radar signals reflected off of target objects are received and checked for irregularities. The transmitting power of the radar transmitter is reduced when irregularities occur which are attributable to interference caused by neighboring radar transmitters.

The present invention discloses a mechanical sensor array calibration device and the working method thereof. The device comprises locating transmission part and control part which is electrically connected with the locating transmission part; wherein, the locating transmission part comprises calibrated working platform and pressure head testing part; the pressure head testing part is connected with a force sensor through an extension head of a Z-directional linear stepper motor. Using the working method of the device adopts three stepper motors as the driving source; two stepper motors drive the coordinate motion of the slides on the guide rail to finish the location of coordinate point on the working platform; an extension of a linear stepper motor drives the pressure head to exert force on the tested sensor; when the force exerted by the pressure head achieves the set pressure valve, the singlechip collects the output of the tested sensor and the force sensor and the position coordinate of the tested sensor. The present invention is able to execute the choose and configuration of the calibrating mode and process according to the specific sensor array and the specific calibrating demand so as to enlarge the using range of the device.

Disclosed is a UHF partial discharge and its location measuring device for high-voltage power devices. The measuring device includes a partial discharge sensor, an external noise sensor, an analogue-digital converter, a peak detector, a partial discharge signal processor, an arrival time detector, a discharge location processor, and a display unit.

The invention provides an improved test cell for detecting the presence of an analyte in a liquid sample. The device has an elongate casing defining a liquid sample inlet, a reservoir volume, a test volume, and a window through the casing at the test volume. Disposed within the cell is a sample absorbent, a novel biphasic substrate and a reservoir, together capable of transporting an aqueous solution within the casing along a flow path extending from the sample inlet through the test volume and into the reservoir volume. The invention further comprises a method for detecting the presence of an analyte in a liquid sample using the device and a biphasic chromatographic material for carrying out the method.

Disclosed is a thin-film inspection device with two or more light sources. This device can control the wavelength and intensity of light and illuminate the lights with different incident angles, and are used to control the interference intensity, thereby determining optimal inspection conditions to obtain a reliable inspection result even when different kinds of thin films coexist. The thin films are formed on a flat plate and have different indices of refraction and thicknesses. An incident light control unit is disposed between the illumination unit and the flat plate for controlling the light to be incident on the patterns. A sensor unit detects a reflection light from the patterns. A reflection light control unit is disposed between the flat plate and the sensor unit and controls the light to be detected by the sensor unit. A control unit controls the movement of the illumination unit and the sensor unit.

The invention discloses a distributed knowledge data mining device and method used for a complex network. The distributed knowledge data mining device adopts a distributed computing platform which is composed of a control unit, a computing unit and a man-machine interaction unit, wherein the innovation key is to finish the calculated amount needed by a multifarious clustering algorithm in the data mining by different servers so as to improve the efficiency of the data mining. Aiming at different knowledge data, the degrees of relation and the weights of knowledge data also can be computed by applying different standards, so that a more credible result is obtained. A second-level clustering mode is adopted in the knowledge data mining process; the result of the first-level clustering is relatively rough, but the computing complexity is very low; and the computing complexity of the second-level clustering is relatively high, but the result is more precise. By combining the first-level clustering with the second-level clustering efficiently, the distributed knowledge data mining device improves the time complexity and clustering precision greatly in comparison with the traditional first-level clustering mode. According to the invention, as a visual and direct exhibition network structure and a dynamic evolutionary process are adopted, references are provided for the prediction in the fields of disciplinary development and hotspot research.

The present invention discloses combined brake controlling system and method for electromobile. The system includes combined brake ECU, braking pedal displacement sensor, proportional valve, master cylinder oil pressure sensor and wheel cylinder oil pressure sensor. The brake signals the brake pedal displacement sensor and the master cylinder oil pressure sensor acquire are fed to the combined brake ECU, and the combined brake ECU synthesizes and judges to obtain total brake requirement, acquires the available maximum electrically brake moment from the motor ECU to obtain the required hydraulic brake and outputs control signal to the proportional valve for outputting the hydraulic brake force, so as to realize the combined braking of electric braking and hydraulic braking. The present invention has the brake effect and feeling the same as that of traditional process, maximum energy recovery, high operation performance, high brake effect and high energy utilization efficiency.

The purpose of the invention is to provide a high-precision liquid or gas rocket engine thrust measuring rack. The thrust measuring rack is prominently characterized in that a propellant supply pipeline of an engine and a measuring line pipeline are arranged into three segments, namely a vacuum chamber and fixed frame connecting segment, a corrugated pipe connecting segment between a fixed frame and a mobile frame and a mobile frame pipeline and engine pipeline connecting segment. A single working-segment plate spring is adopted to connect the fixed frame with the mobile frame, and three safety limiting devices are arranged. An in-situ thrust calibration device and the safety limiting devices are arranged. Before a test engine is installed and hot rest run is carried out, a working sensor is calibrated. The high-precision liquid or gas rocket engine thrust rack has the advantages that the interference of a pipeline system to engine thrust measurement is greatly reduced; the overall accuracy of the thrust measuring rack is increased; and the damage to the thrust measuring rack due to the disordered engine work can be prevented.

The present invention relates to a mobile device, network server and method for evaluating a correlation between advertisement information and the behavior of a user having received the advertisement information to verify the effectiveness of providing advertisement information to a user directly without having a user to take a survey. The method comprises providing advertisement information to the user, maintaining an association between said advertisement information and business location data indicative of at least one location of a business, obtaining mobile device location data about the current location of a mobile device of the user, comparing said mobile device location data with said business location data, and if the comparing step determines that said mobile device location matches with a business location indicated in said business location data, registering the match.

A modem, or a communication system, in its transmission section, has signal-formatting circuitry followed by circuitry for insertion of a sequence of pilot symbols into a sequence of data symbols outputted by the formatting circuitry. Placement of the insertion circuitry after the formatting circuitry permits a variety of formatting options without effecting the sequence of pilot symbols that serves as a time reference useful in detection of a signal transmitted by the modem. The reception section of the modem is equipped correspondingly to process a received composite signal of data symbols having a prescribed format and a sequence of pilot symbols. The reception section extracts the sequence of pilot symbols from the composite signal, and employs the pilot symbols to develop a time base for operation of circuitry for decoding the format of the received composite signal to extract data from the composite signal.

An analyte test element for determining the concentration of at least one analyte in a physiological sample fluid having a first and a second surface in a predetermined distance opposite from each other, said both surfaces are provided with two substantially equivalent patterns forming areas of high and low surface energy which are aligned mostly congruent, whereby the areas with high surface energy create a sample distribution system with at least two detection areas, characterized in that the detection areas of first and second surface are also provided with two corresponding patterns of working and reference electrodes of electrochemical detection means.

Filtering assembly for a feedthrough, for implantable medical devices, having operating conductive pin(s) and a ground conductive pin. The filtering assembly has:first insulating substrate,first conductive layer accommodated at first side of first insulating substrate and second conductive layer accommodated at second side of first insulating substrate opposing first side,first conductive layer comprises a conductive ground ring accommodated that surrounds the circumference of one end of the operating conductive pins and capacitive element(s), wherein each of the capacitive element(s) provides on the first side a connection to the operating conductive pin(s) and on the second side a connection to the ground ring, wherein the ground ring is connected to the ground pin,the second conductive layer comprises a ground plane providing connection to the ground ring of the first conductive layer and a connection to the ground pin.Further directed to a feedthrough assembly comprising the inventive filtering assembly.

The invention discloses a device and a method for detecting the leak rate of an O type rubber sealing ring used for spaceflight, which belong to the technical field of the detection of spaceflight components. The device comprises gas storage equipment, an inflation valve, a first pre-pumping valve, a second pre-pumping valve, a leak detection tooling, a leak marking valve, a standard leak, a vacuum gauge, a deflation valve, a leak detection valve, a leak detector, a forestage angle valve, a prepump, a molecular pump, an ultrahigh vacuum gate valve and a vacuum booster pump. The method comprises the following steps of: firstly, pumping the pressure of a detection chamber and a dummy module below the air pressure of 10Pa, then pumping the detection chamber to a lower pressure by the molecular pump, forming a pressure difference between the detection chamber of the leak detection tooling and the dummy module and afterwards introducing high-purity gas with a standard atmosphere pressure into the dummy module. If a leak exists in a rubber sealing ring to be detected, the high-purity gas can enter the detection chamber by the sealing ring under the action of the pressure difference, and the leak rate of the sealing ring can be accurately calculated by the magnitude of the change of the output indication of the leak detector. The invention has the advantages of high detection sensitivity, high detection efficiency, reliable result and the like.

The invention discloses a cloud computing based real-time mass user behavior analyzing method and system. User behaviors and context data are collected by a client end in real time and pre-processed and clustered on the basis of a MapReduce model; ontology data are subjected to reasoning, and latest interests of users are analyzed in real time; a track recurrence algorithm on the basis of a user behavior context is provided for track filling; interest similarity of users is computed by a cosine factor method, an interest similarity matrix is established; a Markov transfer matrix and a collaborative filtering based Markov recommendation model are established to realize effective and precise recommendation. The user behaviors and context information are subjected to model establishment via ontology, and semantic-level sharing and reusing of large-scale behavior information are achieved via an Hbase (hadoop database) based ontology memory mode. Technologies of cloud-computing, the ontology, reasoning and knowledge discovering are combined, and problems in instantaneity, efficiency, large-scale memorizing and intelligentization in mass user behavior analysis are solved.

The invention relates to a method for evaluating the organic carbon content of shale. The method comprises the steps that logging information is obtained and layer sections of the shale are obtained through division; lithology correction coefficients and radioactivity correction coefficients are obtained and corrected log response characteristic values are obtained; organic carbon content calculation functions of shale unit layer sections are established and the calculation function of the organic carbon content of each shale unit layer section is obtained; according to the determined organic carbon content calculation function, the organic carbon content of each shale unit layer section is calculated. According to the method for evaluating the organic carbon content of the shale, the defect that an organic carbon content result in the prior art is large in error is overcome, the organic carbon content in a stratum can be accurately and reliably evaluated, and therefore effective technical supports are provided for exploration and development of shale oil gas.

The invention discloses a dendrobe chromatogram finger print measuring method. The method comprises the following steps of: (1) cutting medical dendrobe, drying at low temperature, crushing, sieving for later use; (2) putting a proper amount of samples into a conical bottle, adding a proper amount of monohydric alcohol, performing ultrasonic treatment for 20 minutes, filtering, sprinkling filter slag by using the monohydric alcohol multiple times, combining filter liquors, and volatizing the filter liquors to near dryness; (3) dissolving by using the monohydric alcohol, fixing the volume, filtering by using a microporous filter membrane of 0.45 mum to be used as a sample solution; and (4) precisely sucking a comparison solution and the sample solution respectively, injecting into a liquid chromatograph for analyzing. The invention can obtain the chromatogram map conveniently and rapidly, and has easy obtaining of the raw materials, simple technology and advanced technique. According to the literature records, the variety of dendrobium plants used as the medical dendrobe is approximate to 100. The invention controls the product quality by using multiple components and multiple indexes, and has more reliable results, easy obtaining of the raw materials and simple technology compared with the quality control indexes.