300results about How to "Increased sensitivity" patented technology

A robotic system that can have a body and four flippers is described. Any or all of the flippers can be rotated. The flippers can have self-cleaning tracks. The tracks can be driven or passive. The robotic system can be controlled by, and send audio and/or video to and/or from, a remote operator control module. The methods of using and making the robotic system are also described.

A solid-state image pickup device includes a semiconductor substrate having a light-incident surface, a plurality of pixels arranged on the light-incident surface, a photodiode arranged in each of the pixels, an insulating film arranged on the semiconductor substrate and configured to cover the photodiodes, wirings embedded in the insulating film, an etching stopper film distant from the lowermost wiring among the wirings, arranged adjacent to the semiconductor substrate, configured to cover at least a region where each of the photodiodes is arranged, and composed of silicon carbide, a trench arranged above each of the photodiodes so as to reach the etching stopper film, and an optical waveguide with which each of the trenches is filled, the optical waveguide having a higher refractive index than the insulating film.

A robotic finger assembly can include a base for mounting the finger to a robotic hand, with the base having a motor, and at least three links. The links of the robotic hand are connected to each other and to the base by a series of joints. A joint shaft and a pivot shaft, where the pivot shaft can freely move within its respective joint shaft, is connected to a preceding link. The motor is activated for opening or closing the finger. The finger closes on an object with a distributed force across the links. Grasping also can mean engaging an object like a human hand, by closing the first finger link until it engages the object, then closing the second finger link until it engages the object, then closing the third link until it engages the object. A robotic hand assembly is also disclosed.

First and second detection frames are supported by a substrate to be rotatable about first and second torsion axes. A first link beam is connected to the first detection frame on an axis located at a position moved from a position of the first torsion axis in a first direction crossing the first torsion axis and directed to one end side of the first detection frame. A second link beam is connected to the second detection frame on an axis located at a position shifted from a position of the second torsion axis in a second direction opposite to the first direction. An inertia mass body is displaceable in a thickness direction of the substrate by being linked with the first and second detection frames by the first and second link beams, respectively. This constitution makes it possible to obtain a highly precise acceleration sensor hardly influenced by disturbances.

A solid-state imaging device includes a light-receiving portion, which serves as a pixel, and a waveguide, which is disposed at a location in accordance with the light-receiving portion and which includes a clad layer and a core layer embedded having a refractive index distribution in the wave-guiding direction.

A method and apparatus are described to increase the efficiency with which a sample vapor is ionized prior to being introduced into an analyzer. Excellent contact between the vapor and the charging agent is achieved in the ionization chamber by separating it from the analyzer by means of a perforated impaction plate. As a result, some desired fraction of the gas going into the analyzer or coming out of the analyzer can be controlled independently from the flow of sample through the ionization chamber. Furthermore, penetration into said ionization chamber of said desired fraction of the gas going into or out of the analyzer is minimized by controlling the dimensions of said perforated impaction plate. Ions formed in the ionization chamber are driven partly by electric fields through said hole in said perforated impaction plate into the inlet to the analyzer. As a result, most of the gas sampled into the analyzer carries ionized vapors, even when the sample flow of vapor is very small, and even when the analyzer uses counterflow gas.

The invention discloses a local discharge ultrahigh-frequency detection fractal antenna which comprises a dielectric layer and a conductor layer, wherein the conductor layer is laid on the upper surface of the dielectric layer and comprises a plurality of squiggly conductor segments which are connected end to end; the conductor segments are arranged according to the Hilbert fourth-order fractal principle to form a fourth-order radiating antenna element; the covering surface of the conductor layer on the dielectric layer is rectangular; the side length of the covering surface is the side length of the conductor layer; and a feed point is arranged on the conductor segment. The fractal antenna which has the advantages of good directivity, wide frequency bandwidth, low standing wave ratio and convenient impedance matching, can meet the requirement on the on-line monitoring and ultrahigh-frequency detection of the local discharge of a transformer; and in addition, the invention also discloses a preparation method of the local discharge ultrahigh-frequency detection fractal antenna.

A photon-emission microscope method and system are described which allow both emission spot localization and continuous spectral analysis of the emited light from the emission spot of a biased electronic circuit. The system includes an emission microscope, a detector and an in-line, direct vision, chromatically dispersing prismatic device. The microscope system advantageously uses only one detector which does not need to be moved to be able to detect both the localization and spectral images. In a particular embodiment, localization of emission spots may be performed using monochromatic light which allows sharp images of the electronic circuit despite the fact that the electronic circuit is viewed through the dispersing device. Further, an improved procedure is described for overcoming errors caused by saturation of the detector at high sensitivities.

A magnetic sensor device includes a first magnet and a second magnet that are disposed on mutually opposing sides of a conveyance path, and one of poles of the first magnet faces an opposite pole of the second magnet. The first magnet and the second magnet generate a cross magnetic field whose strength in a spacing direction, which is orthogonal to a conveying direction, is within a predetermined range. An AMR element is located in a magnetic field in which the strength of the cross magnetic field in the spacing direction is within a predetermined range, and detects, as change in a resistance value, change in the cross magnetic field caused by an object to be detected. A multilayer board outputs the change in the resistance value detected by the AMR element to a processing circuit.

The present invention pertains to a nano-based sensing device (a sensor) comprising a nano-scale working electrode that can be used for the ultra-sensitive detection of blood analytes, disease biomarkers, and other target molecules. The present invention also pertains to a method for detecting target molecules using the sensor as the sensor element of a microfluidic device.

The invention provides a multi-chaotic mapping and DNA coding-integrated image encryption method and a device thereof, an image decryption method and a device thereof. The image encryption method comprises an image scrambling step used for converting a target image into RGB three color component matrixes, and respectively scrambling the three color component matrixes by adopting an Arnold transformation matrix; a matrix replacement step used for respectively carrying out coding treatment on the three color component matrixes which have been scrambled by adopting different DNA coding schemes, carrying out DNA coding treatment on a chaotic sequence generated by chaotic mapping, and overlapping the three color component matrixes after being coded with the DNA to obtain replaced color component matrixes; and a ciphertext reconstruction step used for carrying out DNA unlocking on the replaced color component matrixes, combining the obtained color component matrixes to obtain a middle ciphertext, and diffusing the middle ciphertext after a sum value is calculated and according to the bitwise XOR form. The method is high sensitivity to plaintexts and secret keys. Meanwhile, the method andthe device have a good scrambling effect and a stronger anti-statistical attack resistance.

The invention discloses anti-corrosion self-restoration paint and a preparation method thereof. The anti-corrosion self-restoration paint is prepared from 5 to 10 percent of self-restoration ingredients in percentage by mass, wherein the self-restoration paint is paint of anti-rust filling materials. The self-restoration ingredients can be microspheres loaded with corrosion inhibitors; the loading quantity of the corrosion inhibitors is 10 to 30 percent of the mass of the microspheres. The prepared anti-corrosion self-restoration paint has the advantages that when the coating is damaged through corrosion, corrosion agent molecules are automatically released; the contact of metal with the corrosion media is prevented, so that the effect of preventing the further enhancement of the corrosion can be prevented; the sensitivity is high; the anti-corrosion performance is high. The preparation method is simple; the control is easy; no pollution is caused; the cost is low; the anti-corrosion self-restoration paint is suitable for industrial production.

In various embodiments of the invention, a device permits more efficient collection and transmission of ions produced by the action of a carrier gas containing metastable neutral excited-state species into a mass spectrometer. In one embodiment of the invention, the device incorporates the source for ionization in combination with a jet separator to efficiently remove excess carrier gas while permitting ions to be more efficiently transferred into the vacuum chamber of the mass spectrometer. In an embodiment of the invention, improved collection of ions produced by the carrier gas containing metastable neutral excited-state species at greater distances from between the position of the analyte and the position of the mass spectrometer are enabled.

The invention relates to a method for detecting continuous high-impedance-grounded fault of a medium-voltage distribution system by current information, and belongs to the field of an emergency protection circuit device. The method comprises the steps that residual current of each path of outlet wire on the same bus is collected in real time; the residual current is subjected to harmonic analysis; the amplitude value and the phase position of triple harmonics and fundamental waves of the residual current are extracted; the phase position difference and the amplitude value proportion of the triple harmonics and the fundamental waves of the residual current of each path of outlet wire are compared; the comparison with the corresponding preset detecting threshold value is carried out, and when the detecting threshold value condition is met, 'condition satisfaction' flag bits are set, the flag bits are subjected to timing and counting, timing and counting results are classified, corresponding fault events are reported, and corresponding processing program is started. The method has the advantages that the action threshold value of set values of the ground protection action can be further reduced, the high-impedance-grounded fault can be more flexibly detected, and fault circuits are cut in time. The method can be widely applied to the fields of relay protection and high-impedance-grounded fault detection of the medium-voltage distribution system with a neutral point in effective grounding.

A monoclonal antibody HGY for HLA-G, which can generate the antigen-antibody reaction on 7 HLA-G isomers, a hybridoma cell strain able to secrete it, a method with high sensitivity for diagnosing cancer with said antibody, and an immunohistochemical reagent kit prepared from said antibody and its application are disclosed.

A scanning beam assembly includes a beam generator to generate a beam of radiation; at least one reflector configured to deflect the beam across a field of view; and a plurality of multi-mode optical fibers for receiving radiation reflected from the field of view, wherein the optical fibers have end surfaces that face in at least two different directions, or wherein the optical fibers are configured to receive scattered radiation from an angular field of view larger than that determined by their individual numerical apertures.

The invention relates to an ion chromatography-binode electrochemical hydride generation atomic fluorescence on-line combined system, which comprises a liquid chromatography pump, an admission valve, an ion chromatographic column, a three-way connecting device, a peristaltic pump, a binode electrochemical hydride generator, a four-way connecting device, a gas-liquid separator and an atomic fluorescence photometer. Element compounds of different forms in a sample are separated on the ion chromatographic column, the separated components are reduced to gaseous hydride on the binode electrochemical hydride generator, the gaseous hydride after undergoing gas liquid separation through the gas-liquid separator is led into the atomic fluorescence photometer by carrier gas for detection, and signals are recorded and processed by a self-developed work station. The ion chromatography-binode electrochemical hydride generation atomic fluorescence on-line combined system successfully realizes effectively converting the element compounds of different forms separated by the ion chromatographic column into hydride on line, and introduces an atomic fluorescence detection system on line, thereby establishing a simple, quick, sensitive, accurate, economical and reliable new technologic platform for element form analysis.

A core/shell nanoparticle includes at least one core made from at least one first metallic material based on at least one metal exhibiting plasmon resonance in a domain chosen from ultraviolet, visible and near-infrared, and a silica shell, the silica including functional groups, and on its surface, covalently bonded agents for stabilizing the nanoparticle. A core/shell nanoparticle includes a core made from at least the first material and a metallic shell made from a second different material based on at least one metal exhibiting plasmon resonance in a domain chosen from ultraviolet, visible and near-infrared, the metallic shell being stabilized by a halogen-free surfactant. An immunochromatographic test device for detecting at least one analyte, including binders specific to the analyte, the binders being marked by nanoparticles which include at least one core, made from at least the first material, and a silica shell, the silica including functional groups.

An apparatus for detecting concealed surveillance devices coupled to a transmission line uses either a time domain or frequency domain reflectometry operation to locate any impedance anomalies on the transmission line and a non-linear junction detection operation to classify the located impedance anomalies as semiconductor or non-semiconductor based anomalies. The reflectometry operation utilizes the reflection of a test signal to determine the distance to any reflecting impedance anomalies on the transmission line that may be indicative of an electronic device being coupled to the transmission line. The non-linear junction detection operation then compares the amplitudes of re-radiated second and third harmonics of a transmitted fundamental frequency signal to determine if the reflecting impedance anomalies are the result of a semiconductor based non-linear junction. A DC bias voltage and a balanced load may be added to the transmission line to enhance the line's response to the test signals. Any unidentified semiconductor based anomalies are manually inspected to determine if they represent convert surveillance devices.

The invention discloses an image encryption method based on compressive sensing and index scrambling, which is mainly used for solving the problems of overlarge secret key amount and ciphertext amount and poor physical implementation of an encryption system in the prior art. The image encryption method comprises the following steps: (1) unfolding an original image in an orthogonal basis to obtain a sparse coefficient; (2) controlling to constitute a measurement matrix by using a Logistic sequence; (3) using the measurement matrix to measure the sparse coefficient to obtain a measured value; (4) scrambling the measured value by using the Logistic sequence to obtain a scrambled measured value; and (5) quantifying the scrambled measured value to transmit the same as a ciphertext. The method disclosed by the invention is used for constituting the measurement matrix by using the Logistic sequence to greatly reduce the number of secret keys and improving the enforceability of a hardware system, and the method can be applied to encryption processing of remote images.

The invention discloses an interdigital electrode with a nano-dot array, wherein a metal interdigital electrode array is taken as the main body, and a metal nano-dot structure array is implanted into the gap of the metal interdigital electrode array. The preparation method of the interdigital electrode with the nano-dot array provided by the invention comprises the following steps of: firstly, forming a single layer of ordered dense polystyrene nanosphere arrangement on the surface of a glass sheet; secondly, depositing a metal film on the dense arrangement of polystyrene nanospheres, wherein the deposition thickness of the metal film is lower than 1/2 of the height of the nanosphere; and then removing the nanospheres to obtain the metal nano-dot array; depositing the metal film on the metal nano-dot array, forming an electrode pattern outlined by photoresist on the surface of the metal film, and then performing wet-process corrosion until the metal nano-dot array is exposed again, thereby obtaining the interdigital electrode with the nano-dot array. The interdigital electrode provided by the invention can be used as a biosensor, and is high in compatibility, high in efficiency, low in cost, high in sensitivity and the like.

A diagnostic assay device that directs an applied sample to the analytical membrane of a directed flow device. The device has a sample receiving port defined by layers of built-up material on one end of the test strip. The port contains the sample and specifically directs it to the membrane in a controlled fashion. Additional features include configuration of the housing in a general C-shape with the test strip spanning the opening of the C-shape to allow access by a reader device. A preferred method employs superparamagnetic particles to label the target analytes for detection and measurement by means of an electromagnetic reader device.

The present invention relates to osteoporosis-resisting medicine screening model expressed by bone formation promoting protein. The model has steps combining microbiological method for initial screening and cytological method for re-screening. In the initial screening, fermented liquid or other natural product is used to screen HMG-CoA reductase inhibitor in biological cholesterin synthesizing route; and in the re-screening, the initial extractive of fermented liquid or other natural product is used, bone formation protein bmp-2 gene promoter is used as target point and bmp-2 expression effect is used as identification index. The screening model has high sensitivity, is suitable for high-flux screening and can provide promising candidate compounds for the development of osteoporosis-resisting medicine.

Provided are a touch sensing panel and a touch sensing apparatus for detecting an absolute location with respect to at least one touch, including a driving electrode forming a mutual capacitance between a sensing electrode and the driving electrode in response to a predetermined driving signal and including at least two electrode surfaces divided by a width size.

The invention discloses a detection method and a detection kit of influenza A virus, H1N1 and H3N2 subtype influenza virus, which has the advantages of specificity, sensitivity, good repeatability, fastness and low cost. A specific primer and a TaqMan probe are designed through sequence alignment for searching a highly conserved area according to a North American variant strain M gene of Influenza A Viruse(H1N1)virus in 2009, an HA gene sequence and the HA gene sequence of Influenza A Viruse(H3N2) epidemic strain, which are published in GeneBank; key reagents such as the probe, the primer and positive control (to structure the influenza A virus, the H1N1 and the H3N2 subtype influenza virus gene recombination clone plasmid) in the detection method are developed; and the influenza A virus, H1N1 and H3N2 subtype influenza virus real-time fluorescence RT-PCR (Reverse Transcription-Polymerase Chain Reaction) detection method is established through the optimization of various reaction conditions and the tests on the specificity, the sensitivity and the repeatability. The detection method can be used for simultaneously and specifically detecting the influenza A virus, the H1N1 subtype influenza virus and the H3N2 subtype influenza virus in one test.

To provide a method of efficiently removing excitation light in a device for measuring fluorescence emitted from samples on a measuring surface of a substrate while illuminating the samples with excitation light.

The method is a fluorometry characterized in that an excitation light illumination portion where the samples are illuminated with the excitation light and a light detecting portion where measurements are made of the fluorescence are placed in such a manner as to make it possible to prevent the excitation light from approaching the light detecting portion, and measurements of the fluorescence emitted from the samples on the measuring surface of the substrate are made in such a manner as to relatively move the samples from the excitation light illumination portion to the light detecting portion after illuminating the same with the excitation light.

The invention relates to a biological model of steroids hormone pollutant in foods and feeds established by utilizing Caenorhadits elegans and a method thereof, belonging to the field of a safety detection technique of foods and feeds. The biological model of the steroids hormone pollutant in the foods and the feeds is established by utilizing the Caenorhadits elegans. The method of the invention is characterized in that the Caenorhadits elegans is utilized to establish a biological model of steroids hormone pure products; the Caenorhadits elegans is utilized to establish the biological model of steroids hormone in the foods; and the Caenorhadits elegans is utilized to establish a biological model of steroids hormone in the feeds. The invention has the beneficial effects of important significance of the research of the steroids hormone to influence on human health, and short period, high efficiency, conciseness and convenience of the experiment course, less requirements on instruments, low cost and great application value. Moreover, the period of the Caenorhadits elegans from the first stage of larvae to the stage of oviposition and the generation time are detected to identify the precocity phenomenon of organisms under the influence of the steroids hormone by exposing the steroids hormone of the Caenorhadits elegans in the first stage of the larvae.

Disclosed are methods for treating neoplastic cells, including reversing or preventing chemotherapeutic drug resistance, by increasing the sensitivity of the neoplastic cells to a chemotherapeutic drug. In addition, methods are further disclosed for diagnosing chemotherapeutic drug resistance in neoplastic cells by detecting an increase in the expression of prohibitin in such neoplastic cells as compared to the level of expression of prohibitin protein in a non-MDR neoplastic cell.

Provided is a solid-state imaging device comprising a plurality of pixel circuits GC having photoelectric conversion characteristics including linear characteristics and logarithmic characteristics on either side of an inflection point. The pixel circuits GC each include a photoelectric conversion element PD which accumulates a signal charge by exposing a subject, and a floating diffusion FD which converts the signal charge accumulated by the photoelectric conversion element PD into a voltage signal. The floating diffusion FD is set to have an operating charge that is smaller than a saturation charge of the photoelectric conversion element PD.

The invention discloses a pair of primers used for rapid detection of Neofusicoccum parvum strains and application thereof. Nucleotide sequences of the pair of the primers are respectively represented by sequence 1 and sequence 2 in a sequence table, and the primers can specifically amplify the product of 370bp in Neofusicoccum parvum and have a sensitivity of 10 pg to genomic DNAs of the Neofusicoccum parvum strain. It is proved that the pair of the primers can be used for rapid reliable detection and identification of the Neofusicoccum parvum strain in disease samples of grapes in the field, and the problems of cumbersome steps, a long identification period and the like in traditional identification methods are overcome.