37results about How to "Overcoming Application Limitations" patented technology

The invention provides an Opencv-image-processing-based quadrotor aircraft midair autonomous grabbing operation control method. A quadrotor aircraft operation system is composed of a quadrotor aircraft and an operation device, and the operation device is composed of a mechanical arm and a gravity center balance mechanism, wherein the mechanical arm and the gravity center balance mechanism are symmetrically installed below the quadrotor aircraft. Images of a grabbed target and an artificial mark are obtained through a camera on the quadrotor aircraft, the Opencv is utilized for processing the images, the camera posture information is solved, and thus the posture information of the quadrotor aircraft is obtained; and the quadrotor aircraft, the mechanical arm and the gravity center balance mechanism are controlled in a graded manner according to the posture information of the quadrotor aircraft. The application filed of the quadrotor aircraft is broadened, midair operation can be performed either in a room or in a surrounding outdoor environment with dense buildings, and midair operation precision is improved.

The invention provides a ground phase-correcting method for a double-channel tracking system and aims to provide a method which is independent from any external condition and has a phase-correcting precision equivalent to that of a standard tower-correcting method. According to the technical scheme, the ground phase-correcting method comprises the following steps: firstly, placing a beacon on the ground in a position with a more than 0.3R radial distance from a ground station antenna, adjusting a beacon signal level and finishing level calibration at an input end of a ground station tracking receiver; causing the ground station antenna to direct to the beacon direction and correcting the phase; causing the ground station antenna to deviate from the beacon for 4 milli-inches along azimuth and pitching directions; respectively adjusting phase shift values of an azimuth phase shifter and a pitching phase shifter of the tracking receiver; storing the phase shift values when azimuth error voltage and pitching error voltage are maximal; controlling the ground station antenna to deviate from beacon null point along the azimuth and pitching directions; checking error voltage polarity and cross-coupling; automatically tracking the beacon; checking a convergence condition of a servo loop; and counting and recording angle-measuring random errors.

The invention discloses a real-time monitoring video and three-dimensional scene fusion method based on a three-dimensional GIS (Geographic Information System), which belongs to the technical field ofthree-dimensional GIS, and comprises the following steps: S1, inputting model data, checking texture and triangular patch number of an artificial modeling model by using hypergraph iDesktop software,removing repeated points, converting a format to generate a model data set, and storing the model data set in a database; performing root node combination and texture compression on the original OSGBformat data by the inclination model; and S2, converting the model data set and the inclined OSGB slice into a three-dimensional slice cache in an S3M format. The live-action fusion method disclosedby the invention is oriented to the fields of public security and smart cities, avoids the application limitation of the traditional two-dimensional map and monitoring video, solves the disadvantage that the monitoring video picture is split, enhances the spatial perception of video monitoring, improves the display performance of multi-path real-time video integration in a three-dimensional sceneto a certain extent, and improves the real-time performance of the three-dimensional scene. The method can be widely applied to the fields of public security and smart cities with strong videos and strong GIS services.

The invention relates to an ultrasonic processing method for enhancing the size accuracy of a micro-electroformed apparatus, belongs to the technical field of micro-manufacturing and particularly relates to a method for enhancing the size accuracy of the micro-electroformed apparatus. A process for manufacturing the micro-electroformed apparatus comprises the following processes: performing pretreatment on a nickel substrate, manufacturing a micro-electroformed rubber mold and performing micro-electroforming. In the process of manufacturing the micro-electroformed rubber mold, the nickel substrate coated with SU-8 rubber is fixed on an ultrasonic workbench after whirl coating, prebaking, photo-etching and after-baking are performed, is ultrasonically vibrated and developed to obtain the micro-electroformed rubber mold. The micro-electroformed rubber mold is soaked into electrotyping solution and is subjected to electro-deposition in a groove of the micro-electroformed rubber mold to form a nickel-electroformed layer. The SU-8 rubber is removed and vacuum annealing treatment is performed to eliminate residual stress. Due to the adoption of the method, the amount of the electrotyping solution absorbed by the SU-8 rubber in the electroforming process is reduced, swelling of the rubber mold is lowered and the size accuracy of the micro-electroformed apparatus is enhanced.

The present invention discloses an electric system static safety analysis method considering backup automatic switch. The method comprehensively utilizes a voltage loss determination algorithm based on Jacobian matrix singularity, a backup automatic switch input algorithm, a mixed current algorithm, a sensitivity method and the like. The voltage loss determination algorithm based on Jacobian matrix singularity is employed to perform voltage loss-island topology analysis of a power grid and check whether the power grid has voltage loss nodes or not. If the power grid has no voltage loss nodes,the sensitivity method is directly employed to calculate the current of the system after faults are generated; if the power grid has voltage loss nodes, the backup automatic switch input analysis needs to be performed to apply motion to the related backup automatic switch in the power grid. The state of the power grid can be possibly changed to N-1+1 and even N-1+M, at the same time, the mixed current algorithm can be utilized to calculate the current of the system. The method can adapt radiating features of an urban power grid distribution network and can consider automatic device factors soas to greatly express the practical operation of the urban power grid when risk assessment of the urban power grid is performed.

The invention relates to a polysubstituted isoindoline compound represented by a general formula (I), and a preparation method, a pharmaceutical composition and an application thereof. Specifically, as a CRL4CRBNE3 ubiquitin ligase regulator with a novel structure, the polysubstituted isoindoline compound provided by the invention has stronger anti-tumor activity and an anti-tumor spectrum, and can be used for preparing medicines for treating diseases related to CRL4CRBNE3 ubiquitin ligase.

When the diameter of a nanometer super oxide dismutase is 10-200nm, its antioxidative activity increases more than 10 times, skin and mucosa absorption rate is over 90%, half-life prolongs to more than tow orders, it can play the role of clearing free radicals in cells with stronger resisting over oxidation to lipid. The preparation is to take SOD from plants or animals as the raw material applying a nm super high voltage uniformity technology to process it to SOD moleculars, then applying slight emulsification or liposome technolgies to scatter the nm moleculars to form nm SOD micro drops or applying supersonic fluid technology to produce SOD micro capsules.

The invention discloses a model training method based on deep learning and a related device, and the method comprises the steps: building a classification model based on a plurality of individuals, and carrying out the information sharing of motor imagery electroencephalogram signals collected by different individuals; the accuracy of motor imagery classification being further improved by determining the model loss function through the multiple sub-loss functions, the difference of samples being reduced from multiple dimensions, and then the problem that the intra-class difference is large dueto the environment or different mental states in the individual being reduced. In addition, algorithm application limitation caused by individual differentiation is avoided, common information related to different individual motor imagery action tags is extracted, differences among individuals are reduced, and the accuracy of model training is improved.

The invention discloses a third-perspective video synthesis and output system and method for a virtual reality project. The system comprises a camera used for shooting a moving image of an operator wearing a VR helmet, holding a locating handle in a hand and operating the VR project in a blue box, an image matting module used for extracting the moving image of the operator, a background extraction module used for extracting a background image in the VR project, a foreground extraction module used for extracting a foreground image in the VR project, and a video synthesis module used for synthesizing the moving image, the background image and the foreground image into a third-perspective video. The third-perspective synthesis and output of the VR project developed based on a Unity3D engine are realized by utilizing an image capture technology and a video matting technology according to a characteristic that the Unity3D VR engine has a foreground alpha channel image output function, so that the problem of application limitation that a VR device only can provide the first perspective is solved.

The invention discloses a novel notriterpenoid saponin compound and a preparation method and application thereof, belonging to the field of natural pharmaceutical chemistry. The method is characterized in that: a novel notriterpenoid compound is obtained through extraction, separation and purification from salicornia bigelovii torr by using a chemical method of water or organic solvent, and is named salicornia bigelovii torr macranthoidin. The compound can inhibit the proliferation of tumor cell in vitro, demonstrating that the salicornia bigelovii torr macranthoidin has a new application of preparing an antitumor drug in the medical field.

A panoramic image splicing method for a curtain wall building facade comprises the following steps: obtaining a high-definition image sequence of the curtain wall building fa ade, performing image preprocessing, determining an ROI (Region of Interest) of the image, extracting feature points of the key region of the facade by using a visual feature recognition algorithm, calculating and dividing anoverlapping region between the image sequences, removing irrelevant feature points, performing preliminary registration, estimating feature point registration model parameters to complete accurate registration of the feature points between different images and solution of a homography transformation matrix, correcting and optimizing a transformation model, determining an optimal splicing seam, and performing image splicing. According to the method, the defect that a traditional panoramic image splicing algorithm is difficult to apply to scenes such as glass curtain wall buildings is overcome,and an efficient method is provided for curtain wall building appearance quality damage detection and evaluation.

The invention discloses a triggering method based on an I2S signal and an oscilloscope. The triggering method comprises the steps of performing time sequence alignment on various data in the I2S signal to obtain an alignment signal, wherein the I2S signal comprises frame synchronization data, clock data and audio data; extracting the alignment signal according to preset frame configuration information to obtain a plurality of data fragments related to the audio data in the alignment signal; and forming triggering data according to the data fragments, and generating a triggering signal by utilizing the triggering data to perform triggering. According to the triggering method, the triggering signal is generated according to the I2S signal, so that a triggering event occurs after external triggering, the application limitation that the conventional oscilloscope cannot perform real-time triggering by utilizing the I2S signal is overcome, the triggering function of the oscilloscope is expanded, and an engineer can be helped to quickly analyze problems at multiple angles.

The invention provides a preparation method of a hyaluronic acid fiber material. The method comprises the following steps: dissolving hyaluronic acid and polyethylene oxide in an aqueous solution of formic acid to obtain an electrospinning solution; carrying out electrostatic spinning on the obtained electrospinning solution to obtain electrospun fibers; and crosslinking the obtained electrospun fibers to obtain the hyaluronic acid fiber material. Compared with the prior art, the high-molecular-weight and low-molecular-weight hyaluronic acid is reasonably proportioned, and the polyethylene oxide is added to prepare the electrospinning solution with higher hyaluronic acid content, so that the concentration of the hyaluronic acid is increased, the entanglement among the polymers is improved,the spinnability of the hyaluronic acid electrospinning solution is improved, and the strength and the flexibility of the fibers are increased; and the prepared fiber material can absorb redundant liquid of a human body or the outside, the softness and comfort of the material are improved, and simultaneously the protective capacity of the material can be improved.

The invention discloses a system and a method for full-automatic patch clamp electrophysiological recording. The system comprises a core processing device, a sample moving platform, a video device, a digital to analog conversion amplifier device, an electromechanical control microoperation device, a positive and a negative pressure device and a recording electrode. According to a resistance value measured by the digital to analog conversion amplifier device and image information acquired by the video device, the electromechanical control microoperation device is moved and a valve of the positive and negative pressure device is controlled, and the optimum patch clamp recording state after cell membranes are broken under suction automatically when resistance in begohm is obtained through full-automatic operation can be acquired. The system and the method can be used for recording of irregular cells and anchorage-dependent cells, and overcome limitation of existing automatic patch clamp systems which can record suspending cells and cells with regular appearances only.

An online programming method based on the GJB289A bus, which includes: 1) the external GJB289A transceiver device is powered on and enters the online programming waiting state; 2) the external GJB289A transceiver device sends a handshake command to the embedded computer through the GJB289A bus; 3) the embedded computer After the power-on self-test is completed, reply the handshake response to the external GJB289A transceiver device, and establish a connection with the external GJB289A transceiver device; 4) The external GJB289A transceiver device sends the software programming address, software length and check code to the embedded computer; 5) the embedded computer The computer receives and checks the software programming address, software length and check code sent by the external GJB289A transceiver device; 6) judges the check result. The invention can meet the requirements of the embedded computer to solidify the code / data through the GJB289A bus.

The invention relates to a database engine, in particular to a database engine applicable to big data of power equipment. The database engine particularly comprises a coordinator node and worker nodes. The coordinator node comprises an analyzer, a planner and a scheduler; the analyzer, the planner and the scheduler are sequentially connected with one another. The database engine has the advantagesthat data views of points and time marks are measured in a unified manner for the first time, accordingly, passive situation of numerous data tables due to metadata structures and relations and the like can be prevented, and high-concurrency and low-delay storage requirements of massive structured data can be met to a great extent; index structures oriented to time serial data of measurement points of power monitoring systems are creatively proposed, accordingly, the shortcoming of limitation that relational databases only can be applied to single-row indexes can be overcome, and the data retrieval and read-write efficiency can be greatly enhanced.

A health-tea tea beverage containing nano-SOD for protecting liver, preventing the diseases of respiratory tract, oral cavity, throat, intestine, etc, and improving immunity is prepared through making tea beverage, proportionally adding nano-SOD and stirring.

The invention relates to a milk beverage containing nanometer SOD and a preparation method thereof. After the milk beverage is prepared, the milk beverage of per kilogram is added with 500 to 2,000 activity units of the nanometer SOD and is fully and evenly stirred. The milk beverage has the characteristics of rich nutrition, delicious flavor, low cost and wide material source, improves taste, promotes appetite, advances the functions of normal metabolism and vision of vitamin A, protects the normal functions of skin and bones, promotes the intelligence development, strengthens immunity, resists aging, regulates blood fat, blood sugar and blood pressure, improves the function of gastrointestinal tracts, resists mutation, tumor and fatigue, improves stress capacity, clears and moistens throat, avoids chemical liver injury, loses weight, has cosmetic functions (removing acne, chloasma, age pigment, maintaining the contents of water and oil and PH augmenting breast), improves nutritional anemia, sleeping and sexual function, increases learning memory, enhances intelligence, promotes growing development, adds no any antiseptic, improves the shelf life by one-third and can meet the requirement of human health and longevity.

The invention relates to an application of solid lipid nanoparticles as an antidepressant drug carrier. Specifically, an antidepressant drug is prepared by the following steps: preparing 0.1-0.2g of curcumin, 0.1-0.3g of folic acid, 0.5-0.15g of lecithin and 0.001-0.0003g of an HU-211 mixed chloroform solution, totaling 10-20ml; then, adding to 20-40ml of water which contains 0.2-0.3g of Myrj52, and stirring under 1000-1200rpm at 70-80 DEG C until the total volume of the mixed solution is 5-8ml left; adding 10-15ml of ice water, and continuing to stir under 1000-1200rpm at 0-4 DEG C for 2-3h; and centrifuging and discarding a supernatant, freeze-drying and preserving at 0-4 DEG C. The solid lipid nanoparticles, as the antidepressant drug carrier, can improve the water solubility and stability of the antidepressant drug, increase the bioavailability of the drug, control the release of the drug and improve a targeting property on treating depression.

The invention discloses an LED wall washer lamp which comprises a main lamp body and an installation support. The main lamp body comprises three sections of LED modules of a cuboid structure, and the LED modules are respectively a middle second LED module, a first LED module and a third LED module, wherein the first LED module and the third LED module are arranged on the two sides of the middle second module. The front face of the middle second LED module is a lighting face, the upper face and the lower face of the middle second LED module are respectively provided with a guide rail, and locking structures for locking the first LED module and the third LED module are arranged on the guide rails. The three-section type design is adopted in the wall washer lamp, the length size of the lamp can be adjusted and locked in a certain range, and the application limit to a lamp of a fixed size in all wall washing and lighting occasions is overcome.

The invention discloses a radius tip electrode and a spherical capacitance return difference type liquid level switch with the radius tip electrode, and relates to the technical field of conductive liquid level detection. The problems that an existing liquid level switch is low in precision, high in foam floating ball water absorption rate and poor in epoxy resin insulating and pressure resistant property are solved. According to the radius tip electrode, one end of a binding post makes contact with and is connected with the outer surface of a metal spherical electrode, an insulating layer wraps the outer surfaces of the metal spherical electrode and the binding post, the insulating layer seals the metal spherical electrode and the binding post, and the other end of the binding post is located outside the insulating layer to serve as the wiring end of the radius tip electrode. According to the spherical capacitance return difference type liquid level switch, the wiring end of the radius tip electrode is connected with the measurement signal input end of a measuring circuit, and the wiring end of a liquid electrode is connected with the measurement signal input end of the measuring circuit. The radius tip electrode and the spherical capacitance return difference type liquid level switch are suitable for conductive liquid level detection.

The present invention discloses preparation and an application of a lipopeptide solution for low porosity and low permeability oil field displacement. According to the present invention, a lipopeptide fermentation waste solution being subjected to heat denaturation is adjusted to achieve the pH value of 8-9 to replace water so as to prepare a lipopeptide solution, and bacterial, spores and large particle impurities are removed through 18000 r / min ultracentrifugation to obtain a clarified lipopeptide solution containing various lipopeptide fermentation metabolism organic acids, phospholipids and other surface active substances; and the lipopeptide solution provides characteristics of better emulsification and viscosity reduction effect and better permeability on stratum for crude oil compared with the simple lipopeptide solution, is especially for low porosity and low permeability oil field displacement, and has advantages of easy degradation, strong penetration, no scaling, environmental protection and the like.

The invention relates to a kind of automobile suspension shock absorber with self sensing function of relative speed . It consists of cylinder block and the liquid in it , dust cap , piston head , piston rod , the magnet exciting coil on the piston head , the induction coil in the piston rod , etc . When load alternating voltage signal in middle frequency to the magnet exciting coil , it will produce same-frequency alternating magnetic field which will form a closed magnetic circuit in the shock absorber and make the induction coil produce a alternating voltage signal in the same frequency . The shock of the automobile will induce the corresponding linear change to the magnetic linkage of induction coil , the voltage signal produced in the two end of the coil will be a double sidebands amplitude-modulated signal among which the range adjusting signal reflects relative speed between automobile body and automobile bridge , thus realize the sensing of the relative speed between the automobile body and automobile bridge , thus make the shock absorber not only get the damping function but also get the self sensing function of relative speed , and further realize the self-adapting damp shock reducing of the automobile suspension system .

The present invention relates to a new nortriterpenoid saponin compound, a preparation method and uses thereof, and belongs to the field of natural pharmaceutical chemistry, wherein a chemical method adopting water or an organic solvent is adopted to extract, separate and purify the whole plant of salicornia bigelovii torr to obtain a new nortriterpenoid compound, which is named salicornia bigelovii torr saponin B. The present invention further provides a preparation method for the compound and uses of the compound in the medicine field, particularly in preparation of anti-tumor and anti-inflammation drugs.

The present invention discloses preparation and an application of a lipopeptide solution for low porosity and low permeability oil field displacement. According to the present invention, a lipopeptide fermentation waste solution being subjected to heat denaturation is adjusted to achieve the pH value of 8-9 to replace water so as to prepare a lipopeptide solution, and bacterial, spores and large particle impurities are removed through 18000 r / min ultracentrifugation to obtain a clarified lipopeptide solution containing various lipopeptide fermentation metabolism organic acids, phospholipids and other surface active substances; and the lipopeptide solution provides characteristics of better emulsification and viscosity reduction effect and better permeability on stratum for crude oil compared with the simple lipopeptide solution, is especially for low porosity and low permeability oil field displacement, and has advantages of easy degradation, strong penetration, no scaling, environmental protection and the like.

The invention discloses a cooperative office level-to-level management method and system based on a workflow, and the method comprises the following steps: receiving a modeling mode selected by a user, setting a first workflow model according to the modeling mode selected by the user, and building a second workflow model according to the first workflow model, wherein the first workflow model at least comprises one flow; determining the leader-member relation of the first and second workflow models according to the modeling mode selected by the user, and carrying out the management; and reporting the leader-member relation of the first and second workflow models to a correlated workflow model. According to the invention, the nominal leader-member relation which is defined according to the inclusive and exclusive relation between the workflow models achieves a purpose that an organizational structure and derived post files do not need to serve as the precondition or pre-posed operation of the method, thereby improving the efficiency of automatic office.

The invention discloses a method for preparing a high-performance interface based on a carbon-carbon bond. By introducing a two-dimensional nanomaterial graphene between a carbon nanotube CNT and a metal, a mixed structure of CNT-graphene-metal-target substrate is obtained. Among them, CNT and graphene are homogeneously connected, graphene and metal are in "face-to-face" contact, and CNT and target substrate are connected to metal through graphene. This structure converts the "point-plane" van der Waals connection between CNT and metal with Schottky barrier into a homogeneous connection between graphene and CNT. Metal-graphene wraps the tip of CNT. In addition, graphene and metal- The "surface-to-surface" contact between the target substrates increases the contact force and contact area, which jointly improves the mechanical strength and boundary resistance between the four; at the same time, the combination of vertical and lateral thermal conductivity of CNT and graphene improves the thermal conductivity of the structure rate, so that the mechanical strength of the structure is enhanced, the thermal contact resistance is reduced, the generation of Joule heat is reduced, and the reliability and heat dissipation of the device are significantly improved.

The invention discloses a display control method and device and electronic equipment.The method comprises the steps that scene data of a virtual scene is acquired, a scene picture corresponding to the scene data is displayed and output, the scene picture comprises at least one display object, and the display objects correspond to virtual objects included in the virtual scene; a corresponding operation result is obtained by executing an operation corresponding to a user control request on a first target area in the scene picture, and a control instruction is generated on the basis of the operation result and used for giving an instruction to correspondingly control a second target area, corresponding to the first target area, in the virtual scene.Accordingly, by applying the method and device, needed area controlling on the AR-VR virtual scene can be achieved by processing the virtual scene created by the AV-VR equipment, and the user experience is improved.