93results about How to "Stable capture" patented technology

The invention relates to a device for the removal of foreign bodies and thrombi from body cavities and blood vessels using a guide wire provided with a distal element with said distal element being provided with an orthogonal structure.

A method for processing received radio signals that are subject to unwanted change during propagation through the atmosphere, from a transmitter to a receiver array. The multiple signals are received as cochannel signals at the antenna array, and are processed to eliminate the effects of modification of the signals during propagation, wherein the processing step includes cumulant-based signal recovery without regard for the geometrical properties of the antenna array. In the invention as disclosed, two different information signals having two different polarization states are transmitted, and at least one of the transmitted signals is subjected to an unwanted change of its polarization state. The received signals are processed to separate and recover the two information signals without regard to their polarization states.

A radiographic image capture system is provided. The system includes: a radiation source control component that, when capturing a radiographic image, controls a radiation source such that radiation for image capture is irradiated after radiation for notification of radiation exposure commencement has been irradiated; a detection component that is provided within an irradiation range of radiation irradiated from the radiation source and that detects radiation irradiated from the radiation source; and a radiographic image capture device that includes: a generation component that has a sensor section with sensitivity to radiation and that generates image information denoting a radiographic image represented by radiation irradiated onto the sensor section, and an image capture control component that, when radiation for notification has been detected by the detection component, controls the generation component such that a radiographic image is captured with the radiation for image capture irradiated after detection.

A phase-locked loop comprises a phase frequency detector, a charge pump, a loop filter, a voltage-controlled oscillator, a frequency divider, a sigma-delta modulator and a closed loop frequency calibration circuit; the voltage-controlled oscillator at least comprises a capacitor array and an oscillator; and a reference clock signal coming from a crystal oscillator is input into the phase frequency detector and a processor, the phase frequency detector is connected with the oscillator successively through the charge pump and the loop filter, and the oscillator is connected with the phase frequency detector and the sigma-delta modulator through the frequency divider. The phase-locked loop can greatly shorten calibration time and improve calibration efficiency. The invention further relates to a circuit and a method of closed loop frequency self-calibration.

A timing recovery for recovering a symbol clock using received data is provided. The timing recovery estimates a timing offset in such a way that dispersion constants of received symbols are minimized. Since the dispersion constants do not totally depend on a specific portion of a received signal spectrum, deterioration of the timing recovery performance by fading of a specific frequency component can be prevented. Particularly, the timing offset can be stably captured in a frequency selective fading channel such as a multi-path channel.

A structure having an opening communicating with an inner space is adapted for separating or capturing a substance introduced from the opening into the inner space. The structure comprises a hollow member having the inner space with the opening and plural pillars positioned mutually separately in the inner space. The pillars are formed of a material containing an inorganic oxide and different in composition from the hollow member.

The invention discloses a silver nano column cluster array, as well as a preparation method and application thereof. The silver nano column cluster array comprises the silver nano column clusters covering a gold film, wherein the silver nano column clusters constituting the silver nano column cluster array comprises more than 20 silver nano columns; the diameter and length of each silver nano column are 5-75 nm and 750-850 nm respectively, the distance between the centers of the roots of two columns is 130-170 nm, and the top ends of the more than 20 columns are gathered. The preparation method comprises the following steps: a monolayer crystal template is moved to the surface of a through-hole alumina template, the gold film is sputtered on the monolayer crystal template, then, the monolayer crystal template is placed in a silver electrolyte, the monolayer crystal template is removed after the silver nano columns is subjected to electro-deposition, after the gold film is sputtered on one surface, covering the gold film, of the alumina template, the alumina template is dissolved away, and then the gold film on which the silver nano column cluster array is placed is dried to prepare the objective product, wherein one surface of the alumina template is coated with the gold film, and the silver nano columns are placed in the through holes of the alumina template. The silver nano column cluster array can be used as the active substrate of surface reinforced raman scattering, and a laser Raman spectrometer is utilized to measure polychlorinated biphenyl-3 attached thereon or measure the content of parathion-methyl in an organophosphorus pesticide or the content of 2, 4-D in an organo-chlorine pesticide.

There is provided a radiographic imaging system including: a radiographic imaging device including a generating section that captures a radiographic image expressed by irradiated radiation and generates image information expressing the captured radiographic image, and a first communication section that transmits, plural times and by wireless communication and even during a response wait time period, imaging start instructing information that instructs starting of imaging when preparations for capturing a radiographic image by the generating section have been completed; and a control device having a second communication section that can communicate by wireless communication with the first communication section, and a control section that controls a radiation irradiating section such that radiation is irradiated with respect to the radiographic imaging device in a case in which the second communication section receives any of the imaging start instructing information that are transmitted plural times from the first communication section.

The invention provides intracranial vascular thrombus removal equipment comprising a thrombus remover, a guiding guide wire, a push-pull guide wire and an outer sheath pipe. The thrombus remover is connected with the push-pull guide wire, the mounted push-pull guide wire and the thrombus remover are pressed and held into the outer sheath pipe, the thrombus remover forms a pipe cavity and can be converted between a retrieving position and an unfolding position by the aid of pushing and pulling of the push-pull guide wire, the thrombus remover is retrieved into the outer sheath pipe at the retrieving position and pushed out of the outer sheath pipe at the unfolding position. The intracranial vascular thrombus removal equipment is characterized in that distribution density of spiral net ring units of the thrombus remover is different axially, the distribution is denser at the far end and relatively sparser at the near end; and / or the axially neighboring net ring units are connected through S-shaped or Z-shaped connecting ribs. According to the arrangement, the thrombus removal equipment can not only firmly fix the thrombus, but also effectively prevent microthrombus from falling off.

The invention provides a device and a method for rotatably controlling optical tweezers by femtosecond laser, and relates to the technical field of optically controlled optical tweezers. By the device and the method, a controlled object can be controlled rotatably in a high-precision, non-contact and scatheless manner. Seed light outputted by a femtosecond laser device passes through a diaphragm, an attenuation slice, total reflection planar mirrors and a vortex grating and then is divided into first-level diffraction light and a zero-level light beam; the first-level diffraction light and the zero-level light beam are reflected via the two total reflection planar mirrors and are coaxially superposed through a beam splitter so as to obtain a light beam with vortex information; the light beam is reflected into a microscope via a reflector so that an optical axis of the light beam is completely superposed to an optical axis of an imaging optical path of the microscope; in the microscope, a femtosecond pulse rotary arm and an imaging optical path of the microscope transmit light reversely, the light is focused via a high power objective lens so as to be converged into a light spot of which the radius is smaller than 1 micrometer, an optical potential well is formed, and objective particles move into the optical potential well and are captured stably and controlled rotatably. The device and the method are suitable for stably capturing grains and cells and rotatably controlling the grains and the cells.

The present invention provides a yarn winding apparatus which, even when the relative positional relationship between each take-up tube and the corresponding traverse device is deteriorated, enables a package to be formed at the desired position with respect to the corresponding take-up tube. A yarn winding apparatus 1 includes a bobbin holder 3 on which a plurality of take-up tubes 2 are installed and supported on the same shaft, and a plurality of traverse devices 5 each including a yarn guide 4 and configured to reciprocate the yarn guide 4 to traverse a yarn Y with respect to a corresponding take-up tube 2. Each of the traverse devices 5 allows a reciprocating range of reciprocation of the yarn guide 4 to be varied and is located in association with the corresponding take-up tube 2.

The invention relates to a device for the removal of foreign bodies and thrombi from body cavities and blood vessels using a guide wire provided with a distal element with said distal element being provided with an orthogonal structure.

The invention relates to a pig 50K liquid phase chip based on targeted capture sequencing, and application thereof. The pig 50K liquid phase chip is composed of pig 50K probe mixed liquor and a hybridization capture reagent which are independently packaged; pig 50K probes are DNA double-stranded probes and are nucleotide sequences designed and synthesized according to screened SNP sites; and the SNP sites are screened by comparing the sequencing results of the whole genome of the pig to a pig reference genome. The pig 50K liquid phase chip prepared by the invention is mixed with a pig DNA high-throughput sequencing library; DNA fragments containing target sites in the pig DNA high-throughput sequencing library are captured for amplification and purification; and, after a product is subjected to high-throughput sequencing, a sequencing result is replied to a pig reference genome for comparison, so that the genotyping of the genome of a to-be-detected pig is obtained. When the 50K liquid phase chip prepared by the invention is used for genotyping pigs; and the problems of high cost, inflexibility and incapability of large-scale use in pig farms in China in the prior art can be solved.

The invention relates to a device for detecting and monitoring ingredients or properties of a measurement medium, for example physiological blood values, wherein said device contains a light source (20) for generating broad-spectrum measurement light (2) and for acting on a measurement area (3), and means (9) for fanning out the analysis light (4) reflected by the measurement area (3). The device also has a sensor array (11) for picking up the fanned light. The sensor array (11), the light source (20) and the means for dispersing the analysis light (4) are arranged as a compact unit in a housing.

There is provided a radiographic imaging system including: a radiographic imaging device including a generating section that captures a radiographic image expressed by irradiated radiation and generates image information expressing the captured radiographic image, and a first communication section that transmits, plural times and by wireless communication and even during a response wait time period, imaging start instructing information that instructs starting of imaging when preparations for capturing a radiographic image by the generating section have been completed; and a control device having a second communication section that can communicate by wireless communication with the first communication section, and a control section that controls a radiation irradiating section such that radiation is irradiated with respect to the radiographic imaging device in a case in which the second communication section receives any of the imaging start instructing information that are transmitted plural times from the first communication section.

A method for reducing the jitters of video frames is provided, which includes the steps of dividing a frame into multiple blocks, selecting at least one block according to a variance of each block, determining a global motion vector of the frame in a direction according to the selected block(s), and performing motion compensation on the frame in the direction according to the global motion vector.

The invention discloses a virtual figure expression driving method and system. The method includes following steps: acquiring color information and depth information of human facial expressions; synthesizing the depth and color information of the human facial expressions, and extracting key information nodes; analyzing and comparing the key information nodes with a previously learned human facialexpression template to digitalize a practical human facial expression as a weight value, and transmitting the weight value to a middleware; performing standardization processing on the weight value bythe middleware, performing optimization processing to reduce transmission time-delay of data, and outputting the data to a corresponding engine port; and driving virtual figure expressions to changethrough the processed weight data. According to the technical scheme of the method, compared with pure video recording and post-rendering of a conventional three-dimensional production tool, virtual figures can be driven in real time, and technical support is provided for live-broadcasting programs or real-time interaction performance etc.

The invention relates to a laminator. The laminator includes a machine table, and a first conveying device, a third conveying device and an adjusting device which are mounted on the machine table. The first conveying device is used for carrying a first film, and is linearly movable and is installed on the machine table in an adjustable angle. The third conveying device is used for conveying a second film to the first conveying device to fit with the first film. The adjusting device includes a first image capture unit and a second image capture unit which are fixedly arranged on the machine table and are used for respectively capturing the image of the first film and the image of the second film. With the above structure, the laminator provided by the invention takes little space, and has the effect of fitting accurately and quickly.

The present invention relates to the field of G protein coupled receptor (GPCR) structural biology and signaling. In particular, the present invention relates to binding domains directed against and / or specifically binding to GPCR:G protein complexes. Also provided are nucleic acid sequences encoding such binding domains and cells expressing or capable of expressing such binding domains. The binding domains of the present invention can be used as universal tools for the structural and functional characterization of G-protein coupled receptors in complex with downstream heterotrimeric G proteins and bound to various natural or synthetic ligands, for investigating the dynamic features of G protein activation, as well as for screening and drug discovery efforts that make use of GPCR:G protein complexes.

The invention belongs to the technical field of laser Raman spectroscopy and virus detection, and particularly relates to a precious metal nanocone SERS substrate for detecting a novel coronavirus anda preparation method. The SERS substrate comprises a substrate body, a nanocone array located on the substrate body and a precious metal film wrapping the nanocones and the surface of the substrate body where the nanocones are located, the nanocones forming the nanocone array are radial from the center of the substrate body to the periphery, the included angle between every two adjacent nanoconesis gradually changed, and coronaviruses with the size of 60-140 nm can be effectively captured. the substrate has strong compatibility, and when the virus is in contact with the substrate and slideson the surface, the capture efficiency can be greatly improved. The preparation method comprises the following steps: covering a substrate with a single-layer polystyrene microsphere template, bendingthe substrate, carrying out reactive ion etching, carrying out magnetron sputtering on a noble metal film, and leveling the substrate. The preparation method is simple, and the prepared noble metal nanocone has three-dimensionally distributed SERS hot spots and high SERS sensitivity.

The invention relates to the technical field of engineering component testing, and particularly relates to a short-distance explosion test platform for a sunken beam plate component and a test methodof the short-distance explosion test platform. The short-distance explosion test platform comprises a sunken explosion pit, a protective cover plate, a beam plate component, a supporting device and adynamic data acquisition instrument, wherein the upper part of the sunken explosion pit is provided with a pithead; the protective cover plate covers the pithead and is provided with an impact actionhole, the protective cover plate is provided with a plurality of pressure sensors, and the plurality of pressure sensors are arranged at different positions of the protective cover plate in the horizontal direction; the beam plate component is arranged at the lower end of the impact action hole; the supporting device is arranged in the sunken explosion pit, and a plurality of displacement meters are mounted on the supporting device; and the dynamic data acquisition instrument is in signal connection with the pressure sensors and the displacement meters. According to the invention, damage to adetection instrument in the sunken explosion pit caused by reflection and diffraction of explosive shock waves can be avoided, related data is obtained for analysis and calculation, and a more accurate explosive load model is obtained to be used for anti-explosion design of an engineering structure.

The invention relates to a high-precision hybrid calculation method and device and equipment for shock wave instability, and a storage medium. The method comprises the following steps: initializing flow field unit information, and setting a reconstruction mode and a data format at the current moment as a preset mode; reconstructing the flow field unit information according to the flow field information and the reconstruction mode at the current moment; according to a reconstruction result, calculating a flow field interface flux by adopting a data format at the current moment; obtaining a stability matrix according to the flux of the grid interface; analyzing the feature vector of the stability matrix through a matrix stability analysis method, and further obtaining the position where shock wave instability occurs; using a high-robustness numerical format for calculation at an unstable position, and using a low-dissipation numerical format for calculation at other positions. The shock wave is stably captured by applying targeted treatment to the shock wave instability position. According to the method, shock waves can be stably captured, and then accurate distribution of the surface heat flow of the hypersonic aircraft is obtained.

A method for reducing the jitters of video frames is provided, which includes the steps of dividing a frame into multiple blocks, selecting at least one block according to a variance of each block, determining a global motion vector of the frame in a direction according to the selected block(s), and performing motion compensation on the frame in the direction according to the global motion vector.

The invention discloses a high-capture efficiency device for simultaneously controlling low-refractive-index particles in multiple Rayleigh regions. A light beam emitted by a laser device enters a transmission type spatial light modulator after being expanded by a beam expander set, and enters a double-color beam splitter through a trap position adjusting mirror to be reflected to a high-focusingobjective lens, then focused light can be outputted; the focused light enters a sample chamber to form light traps and irradiates a sample in the sample chamber; the sample chamber is filled with a plurality of particles; an illuminating lamp illuminates and penetrates through the sample chamber to irradiate the focus of the high-focus objective lens, and scattered light generated by irradiating the sample in the sample chamber by the focused light returns and is imaged on the target surface of a CCD detector. According to the device of the invention, the transmission-type spatial light modulator is controlled to generate a sinusoidal modulation Gaussian beam of multiple position light traps, so that new light intensity distribution is obtained; particles with high and low refractive indexes are stably captured within the range of a focus area; the multiple particles can be independently controlled at the same time; and the gradient force of the optical traps is improved by selecting asinusoidal modulation coefficient g, and therefore the capturing efficiency is improved.

The invention relates to an RNC binding agent and method for extracting RNC-RNA (ribosome nascent-chain complex and ribonucleic acid) from blood, wherein the RNC binding agent comprises the following components by content: 120-180 Mug / ml of cycloheximide, 25-35 mM of dithiothreitol, 0.45-0.65 M of ammonium chloride, 25-35 mM of sodium citrate, 25-35 mM of ethylene diamine tetraacetic acid, 10-20 mM of ethylene glycol bis(2-aminoethyl ether)tetraacetic acid, 15-25 MuM of 1,2,3,4,6-O-pentagalloylglucose, 0.005-0.015% of glycerol, and the balance of water. The RNC binding agent (RNC blood binding solution) of the invention is a multifunctional reagent integrating translation extension inhibitor, RNA protectant and red blood cell lysate and may serve as an RNA protectant for use in the collection of conventional samples.

A magnetic levitation obstacle avoidance device and a magnetic levitation holder are provided, wherein the magnetic levitation obstacle avoidance device includes: a magnetic levitation component and an obstacle avoidance module; wherein the magnetic levitation component comprises a driving component, an inner stator and an outer rotor; wherein the obstacle avoidance module is mounted on the outer rotor; the driving component drives the outer rotor according to attitude changes of the obstacle avoidance module, so as to change a magnetic force between the outer rotor and the inner stator; the obstacle avoidance module is adjusted to a target attitude by magnetic levitation rotation of the outer rotor. The magnetic levitation obstacle avoidance device and the magnetic levitation holder are self-adaptive in attitude adjustment, and are more stable.

The invention provides a device for regulating erythrocytes in blood vessels of living animals and an application of the device, and belongs to the technical field of photoelectricity. The device sequentially comprises a laser emitting assembly, an acousto-optic modulation assembly, a beam broadening assembly, a short-wavelength pass dichroic mirror and an inverted objective lens along a laser path, wherein the device further comprises an image input and output assembly, a convex lens, a condenser and a white light emitting assembly on an imaging optical path; and laser emitted from the laseremitting assembly passes through the acousto-optic modulation assembly and the beam broadening assembly in sequence and then irradiates the short-wavelength pass dichroic mirror to change a laser transmission direction, and the laser after changing the transmission direction is focused in a sample chamber through the inverted objective lens. Dynamic scanning of a laser focus is achieved by interaction of the laser emitted from the laser emitting assembly and the acousto-optic modulation assembly, and quasi-static distribution of the laser focus at a plurality of positions can be achieved through fast scanning, so that the device is applied to stable capture, accurate arrangement and rotating manipulation of a plurality of erythrocytes.

The invention discloses a foldable bionic mouth and a capturing device. The foldable bionic mouth comprises a base, two first assemblies and two second assemblies, the two first assemblies are locatedat the two opposite ends of the base in the first direction respectively, and each first assembly is partially connected with the base through a first rotating pair; the two second assemblies are located at the two opposite ends of the base in the second direction respectively, each second assembly is partially connected with the base through a second rotating pair, and the second rotating pair is perpendicular to the axis of the first rotating pair; the two side edges, adjacent to the first rotating pair, of the first assembly are rotationally connected with the other parts of the two secondassemblies respectively, when the two first assemblies rotate towards the direction of one surface of the base and get close to each other, the two second assemblies abut against each other towards the direction of the other opposite surface of the base, and a closed space is defined by the two second assemblies. According to the technical scheme, the foldable bionic mouth can achieve wrapping type object grabbing, and the capturing effect is good.

The invention discloses a method for degrading glyphosate in water through light assistance single-atom catalysis. The method comprises the following steps of weighing and adding Cu(NO3)2, 2-methylimidazole, PVP and methyl alcohol into an agate bottle, and performing ball milling for 1-5 h to obtain a Cu-imidazole coordination compound; mixing the Cu-imidazole coordination compound and melamine for grinding, screening the mixture through a 200-400-mesh screen, and then placing the mixture into a tube furnace at the nitrogen atmosphere for calcination to obtain a single-atom catalyst Cu-lCC / g-C3N4; weighing sewage containing glyphosate, adding the catalyst, performing stirring under the dark condition for 20-60 min, achieving the adsorption balance, adding potassium peroxymonosulfate sulfate into sewage under xenon lamp irradiation, and performing ultrasonic treatment under the frequency of 50-70 kHz for 1-5 h, wherein the mass ratio of sewage to potassium peroxymonosulfate sulfate is 20:1-30:1. The removal rate for degrading glyphosate through potassium peroxymonosulfate sulfate activation through the light assistance single-atom reaches 90-100%.

The invention provides a composite material double-body rotor for a light motor. The composite material double-body rotor comprises a light driving layer, an operation tool layer and a substrate, wherein the light driving layer is made of a small-density material; the operation tool layer is made of a large-density material; the light driving layer comprises a rotating shaft and an upper rotor; the operation tool layer comprises a lower layer rotor and a pointed rotating shaft; the upper rotor is positioned at the upper end of the rotating shaft; the lower layer rotor is positioned at the lower end of the rotating shaft; and the pointed rotating shaft is connected to the lower top end of the rotating shaft and is embedded into a small conical hole of which the pore diameter is a little larger than the shaft diameter of the rotating shaft on the substrate. The rotor can rotate stably; meanwhile, the problem of the limits of driving and function on the quantity of single rotor wings is solved; and due to the adoption of the double-body rotor, an optimal effect can be achieved. Due to different structures of a rotor functional layer, functions such as microflow stirring, a micropump,measurement of microcosmic tension, micro-structure winding and the like can be realized, and a powerful tool is provided for micro-life science and biomedicine.