31results about How to "Accurate aggregation" patented technology

The invention discloses a Z axis elastic distance servo system used for laser processing, wherein a Z axis actuating mechanism is connected to a bracket; the bracket is provided with a fixed guiding sleeve and upper and lower limiting switches; a sliding guiding sleeve which can extend downwards is arranged in the fixed guiding sleeve; the lower end of the fixed guiding sleeve is provided with ananti-dropping cover; the lower end of the sliding guiding sleeve is provided with a connecting flange; a returning spring is arranged between the connecting flange and the anti-dropping cover; upper and lower limiting rods which are corresponding to the upper and lower limiting switches are arranged on the connecting flange; a laser head is fixed under the connecting flange and is aimed at a processed workpiece; a universal rolling ball head which can move on the surface of the processed workpiece is fixed under the connecting flange; and a constant vertical interval is kept between a light outlet of the laser head and the lower end of the universal rolling ball head. The Z axis elastic distance servo system can be used for realizing the elastic floatation of the laser head in a defined scope and realizing the quick ascending and descending of the laser head out of the preset scope by using the limiting switches to control a driving motor, thereby ensuring that the laser beam is focused on the surface of the processed workpiece all the time.

The invention relates to the technical field of laser additive manufacturing, and specifically discloses a method for improving the utilization rate of laser deposition powder. The method includes: pre-preparing a cladding layer with metal powder on one end of the surface of the substrate; performing magnetization treatment on the substrate and the cladding layer to form a leakage magnetic field; and performing the next pass of laser cladding under the action of the leakage magnetic field. The metal powder is ferromagnetic material or contains ferromagnetic material, and the base material is ferromagnetic material. The method provided by the invention uses the height difference between the cladding layer and the surface of the area to be deposited to magnetize the ferromagnetic substrate and the cladding layer to form a leakage magnetic field, which has a good attraction effect on the ferromagnetic metal powder, making the nozzle The sent powder can be more accurately converged on the laser scanning path, improving the effective utilization rate and deposition efficiency of the powder.

The invention discloses a novel handheld SPR detector which comprises a shell, wherein a light incidence assembly, a light reflection assembly and a light receiving assembly are sequentially clamped in a light incidence assembly accommodating cavity, a light reflection assembly accommodating cavity and a light receiving assembly accommodating cavity; the sensing chip comprises a substrate and a gold-plated glass sheet; the surface of the movable cover plate is provided with a sample injection port and a sample extraction port at positions corresponding to a sample storage tank and a sample recovery tank respectively, and after the movable cover plate is closed, the sample injection port is in sealed communication with the sample storage tank through an injection port sealing connection device, and the sample extraction port is in sealed communication with a sample recovery tank through the extraction port sealing connection device. The invention aims to provide a novel handheld SPR detector, which can directly extract a liquid sample from a sample storage vessel without dropping the liquid sample into a sample adding slot after the sensing chip is taken out from an exposed environment, thereby avoiding the pollution of the liquid sample and improving the detection accuracy.

The invention relates to a purpose of immunological nanoparticles of brucine in preparing anti-hepatoma target drugs. The immunological nanoparticles of brucine are immunological target nanoparticles which treat brucine as an active component and a carboxylated polyethylene glycol-polylactic acid segmented copolymer as a drug coating accessory, and are formed by externally linking with anti-humanAFP monoclonal antibodies. The immunological nanoparticles of brucine provided by the invention, which have the characteristics of simple technology, high entrapment rate, stable drug release, and good balling, can be used for preparing antitumor target drugs which can be used for anti-hepatoma treatment. By intravenous injection, a nanometer carrier anti-human AFPMcAb-polyethylene glycol-polylactic acid segmented copolymer allows brucine aggregation in hepatoma cells to be increased, the drugs to be slowly and locally released, the effect time of the drugs to tumor cells to be prolonged, thelocal drug concentration to be improved, and the whole body toxicity of brucine to be reduced. So the immunological nanoparticles of brucine of the present invention have the advantages of accurate aggregation of target drugs in the cells of tumor tissues, stable drug release, good anticancer effect, safety and the like.

The embodiment of this specification provides the concept of using graph data to determine the semantic similarity of text. Under this technical concept, the nodes in the graph data correspond to the sentences and words in the corpus, and the associated sentences and words, words and words are connected by Connection edges are connected, and each node corresponds to a node expression vector that can express the semantic information of the corresponding word or sentence. In the data preprocessing process of graph data, a large amount of unsupervised data can be used to construct graph data to describe the relationship between words and sentences, and words and words, and the model parameters of the processing model can be optimized through a small amount of supervised data to make similar Vector representations of text can interact with each other, enabling efficient vector representation of text and vocabulary through graph data. When determining the semantic similarity of the text, the vector of the text to be determined semantic similarity is obtained through the graph data, and the semantic similarity of the text is determined using the vector similarity. In this way, the generality, accuracy and effectiveness of text semantic similarity can be improved.

A method for forming a flexible photoelectric thin film, the method includes: providing a first substrate, wherein a conductive layer is provided on the first substrate. Afterwards, a first positioning structure is formed on the conductive layer, wherein the first positioning structure includes a plurality of first target areas and a plurality of first peripheral areas located around the first target areas, and the surface tension of the first target areas is Different from the surface tension of the first peripheral zone. Next, an electro-optic medium placement process is performed to form electro-optic medium droplets on each of the first target areas. Next, a curing process is performed to respectively form a film wall covering each droplet of the first electro-optic medium. Finally, pressing the first substrate and the second substrate.

The disclosure provides a method, device, medium and electronic equipment for acquiring memory leak information. The method includes: the main process obtains its abnormal crash information; based on the triggering of the abnormal crash information, the main process creates and runs an emergency sub-process; the emergency sub-process obtains the memory state information shared by the main process, and saves it in the memory state Data collection; when the main process runs again, obtain memory state information from the memory state data set; when the memory state information meets the memory exception condition, the main process generates memory leak information. The disclosure directly acquires the size information of the virtual memory, thereby quickly locating the memory leak information, and accurately aggregates the memory leak information, thereby improving the efficiency of locating program faults. Creating a copy-on-write subprocess reduces the interference of other threads and / or processes, avoids interrupting the exception handling process, and improves the success rate and stability of obtaining exception information.

The invention discloses an inner hole laser cladding height control system. The inner hole laser cladding height control system comprises a control system body and an inner hole cladding head. For aninner hole laser cladding height control method, a space right-angle coordinate system is built, an indication light beam deviates towards the laser scanning direction by the proper distance, the actual deviation amount of light spots of the indication light beam relative to a molten pool is obtained in a CCD image, according to the mathematic relation between the deviation distance of the light spots of the indication light beam and the deviation distance of the workpiece surface, the deviation between the actual distance of the inner hole cladding head and the workpiece surface and the standard distance is obtained through calculation, and the inner hole cladding head is controlled to be subjected to height adjusting. The inner hole machining head height is adjusted in real time, and therefore the distance between an inner hole machining head and the workpiece surface is kept constant, it is ensured that powder of a cladding head nozzle is gathered in the molten pool, the inner holecladding quality is improved, and the powder use rate is improved.

The invention discloses a system and a method capable of automatically tracking solar radiation, which utilize local geographical information and time domain information, and interactions of the ecliptic plane, the equatorial plane and the horizontal plane to solve the problem of inaccurate tracking in different time domains, different latitudes and longitudes, areas in southern hemisphere and northern hemisphere and the like around the world. Moreover, the system can flexibly follow the direction of intense radiation according to local radiation conditions, and also can be changed into a dynamic sunlight tracking system used for mobile objects and devices to accurately track the sun according to time service information and positioning information emitted by a satellite.

The invention relates to a household appliance (1) for caring for laundry, which has a water leakage collection device (5) arranged on the bottom (4) of the household appliance (1) and a water leakage collection device (5) arranged in the collection device (5). The float (81) makes electrical contact with the switch (8) according to the water level (W) in the collection device (5), wherein the float (81) is arranged in the first partition (5a) of the collection device (5) , the first partition is separated from the second partition (5b) of the collection device (5) by a water retaining wall (52).

The invention provides a medical data aggregation method and a device, and the method comprises the steps: obtaining a to-be-aggregated business table which comprises at least one field, each field comprises at least one piece of medical data, wherein the number of medical data in the to-be-aggregated business table is greater than a first preset number; randomly collecting a second preset numberof samples in the medical data; carrying out first identification on the collected sample to obtain a first sample and a second sample, and determining a first type of a field corresponding to the first sample; performing second identification on the second sample, and determining a second type of a field corresponding to the second sample; and according to the first type and the second type, determining a service table category of the to-be-aggregated business table. According to the scheme of the invention, the medical data can be gathered more accurately.

The invention discloses a Z axis elastic distance servo system used for laser processing, wherein a Z axis actuating mechanism is connected to a bracket; the bracket is provided with a fixed guiding sleeve and upper and lower limiting switches; a sliding guiding sleeve which can extend downwards is arranged in the fixed guiding sleeve; the lower end of the fixed guiding sleeve is provided with an anti-dropping cover; the lower end of the sliding guiding sleeve is provided with a connecting flange; a returning spring is arranged between the connecting flange and the anti-dropping cover; upper and lower limiting rods which are corresponding to the upper and lower limiting switches are arranged on the connecting flange; a laser head is fixed under the connecting flange and is aimed at a processed workpiece; a universal rolling ball head which can move on the surface of the processed workpiece is fixed under the connecting flange; and a constant vertical interval is kept between a light outlet of the laser head and the lower end of the universal rolling ball head. The Z axis elastic distance servo system can be used for realizing the elastic floatation of the laser head in a defined scope and realizing the quick ascending and descending of the laser head out of the preset scope by using the limiting switches to control a driving motor, thereby ensuring that the laser beam is focused on the surface of the processed workpiece all the time.

Disclosed herein is an electron column using a magnetic lens layer. The electron column includes a magnetic lens layer for condensing an electron beam using permanent magnets. The magnetic lens layer includes a support plate, an aperture formed through the support plate, and permanent magnets arranged around the aperture and disposed on or inserted into the support plate.

The invention discloses an optical measuring method for in-plane vibration of a micro-electromechanical structure, which belongs to the technical field of vibration measurement. Firstly, an optical measuring device is built and used for measuring the in-plane vibration of the micro-electromechanical structure, coherent parallel light irradiates a plane of a measured micro-electromechanical device through a beam splitter prism, reflected light on the plane is transmitted by the beam splitter prism to a score at the focus of a Fourier lens with optical Fourier characteristics, the spatial frequency spectrum of light intensity distribution of the reflected light on the plane of the micro-electromechanical device is formed, and the position and the vibration amplitude of the micro-electromechanical device are obtained by measuring the frequency of spectral line light intensity change in the spatial frequency spectrum and calculating Fourier transformation of spectral line light intensity. An optical path structure is simple, light beams do not need to be accurately gathered, and precise time synchronization technology is not needed. The requirements of large-scale assembly line production on product testing can be effectively met, and wide marketing and application prospects are realized.

The invention relates to a preparation method of strychnine immune nanoparticles, and the preparation method comprises the following specific steps: step 1, dissolving carboxylated poly(ethylene glycol)-polylactic acid block copolymer and strychnine in an organic solvent, and then mixing with a polyvinyl alcohol aqueous solution to form a primary emulsion; step 2, removing the organic solvent andimpurities to obtain a strychnine nanoparticle concentrate; and step 3, sequentially adding a carbodiimide salt used as a carboxyl activation reagent and an anti-human-AFP (alpha-fetoprotein) monoclonal antibody to the strychnine nanoparticle concentrate, thus linking the carboxyl group on polyethylene glycol and the amino group of the anti-human-AFP monoclonal antibody by chemical coupling to obtain the strychnine immune nanoparticles. The preparation method provided by the invention has the advantages of simple process, high encapsulation rate, stable drug release and good drug ballability;and the obtained strychnine immune nanoparticles are used for preparing anti-tumor immune targeting drugs, and have the advantages of precise targeting drug accumulation in tumor tissue cells, stabledrug release, good anti-cancer effect, safety and the like.