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389results about How to "Fast fusion" patented technology

Bipolar electrosurgical instrument for sealing vessels

A bipolar electrosurgical instrument has opposable seal surfaces on its jaws for grasping and sealing vessels and vascular tissue. Inner and outer instrument members allow arcuate motion of the seal surfaces. An open lockbox provides a pivot with lateral support to maintain alignment of the lateral surfaces. Ratchets on the instrument members hold a constant closure force on the tissue during the seal process. A shank portion on each member is tuned to provide an appropriate spring force to hold the seal surfaces together. During surgery, the instrument can be used to grasp and clamp vascular tissue and apply bipolar electrosurgical current through the clamped tissue. In one embodiment, the seal surfaces are partially insulated to prevent a short circuit when the instrument jaws are closed together. In another embodiment, the seal surfaces are removably mounted on the jaws.
Owner:COVIDIEN AG

Bipolar electrosurgical instrument for sealing vessels

A bipolar electrosurgical instrument has opposable seal surfaces on its jaws for grasping and sealing vessels and vascular tissue. Inner and outer instrument members allow arcuate motion of the seal surfaces. An open lockbox provides a pivot with lateral support to maintain alignment of the lateral surfaces. Ratchets on the instrument members hold a constant closure force on the tissue during the seal process. A shank portion on each member is tuned to provide an appropriate spring force to hold the seal surfaces together. During surgery, the instrument can be used to grasp and clamp vascular tissue and apply bipolar electrosurgical current through the clamped tissue. In one embodiment, the seal surfaces are partially insulated to prevent a short circuit when the instrument jaws are closed together. In another embodiment, the seal surfaces are removably mounted on the jaws.
Owner:COVIDIEN AG

Bipolar electrosurgical instrument for sealing vessels

A bipolar electrosurgical instrument has opposable seal surfaces on its jaws for grasping and sealing vessels and vascular tissue. Inner and outer instrument members allow arcuate motion of the seal surfaces. An open lockbox provides a pivot with lateral support to maintain alignment of the lateral surfaces. Ratchets on the instrument members hold a constant closure force on the tissue during the seal process. A shank portion on each member is tuned to provide an appropriate spring force to hold the seal surfaces together. During surgery, the instrument can be used to grasp and clamp vascular tissue and apply bipolar electrosurgical current through the clamped tissue. In one embodiment, the seal surfaces are partially insulated to prevent a short circuit when the instrument jaws are closed together. In another embodiment, the seal surfaces are removably mounted on the jaws.
Owner:COVIDIEN AG

Bipolar electrosurgical instrument for sealing vessels

A bipolar electrosurgical instrument has opposable seal surfaces on its jaws for grasping and sealing vessels and vascular tissue. Inner and outer instrument members allow arcuate motion of the seal surfaces. An open lockbox provides a pivot with lateral support to maintain alignment of the lateral surfaces. Ratchets on the instrument members hold a constant closure force on the tissue during the seal process. A shank portion on each member is tuned to provide an appropriate spring force to hold the seal surfaces together. During surgery, the instrument can be used to grasp and clamp vascular tissue and apply bipolar electrosurgical current through the clamped tissue. In one embodiment, the seal surfaces are partially insulated to prevent a short circuit when the instrument jaws are closed together. In another embodiment, the seal surfaces are removably mounted on the jaws.
Owner:COVIDIEN AG

Bus road condition processing system and method based on traffic multi-source data fusion

The invention discloses a bus road condition processing system and method based on traffic multi-source data fusion. The bus road condition processing system comprises a preprocessing module, a source data processing module, a data source evaluation module and a data fusion module. The preprocessing module is used for processing traffic multi-source data; the source data processing module is used for processing data of a non-bus data source road condition calculation result; the data source evaluation module comprises an evaluation framework used for evaluating the quality of data sources, and the credibility of multi-source data to the bus road condition calculation result can be obtained through processing of the evaluation framework; the data fusion module is used for performing weighted calculation on the multi-source data based on the data source evaluation result, and finally the required bus road condition data are obtained; a display module is used for superposing a bus road condition map and a map file obtained through processing and displaying road condition information of the whole bus road network. By synthesizing the multiple traffic data source road condition calculation results, the advantages of all the sides can be made the best of, the fusion result information used for describing the bus road conditions can be obtained, and data support is provided for bus service.
Owner:BEIHANG UNIV

Ultra-high-definition panoramic video real-time generation and multi-channel synchronous play system

The invention provides an ultra-high-definition panoramic video real-time generation and multi-channel synchronous play system, and relates to the technical field of panoramic camera shooting. According to the system, on the basis of camera array imaging and collecting and by means of GPU high-speed parallel processing characteristics, the high-definition image real-time splicing, correcting, dimming, code compressing and transmission functions are achieved, a multi-channel panoramic multi-camera and an application system of the multi-channel panoramic multi-camera are designed, appropriate reprojection models are selected in a self-adaption mode for different shooting modes such as the cylindrical surface shooting mode and the spherical surface shooting mode, the problems that existing panoramic camera shooting devices in China are generally not high in stability, low in resolution, poor in expansibility, short of instantaneity and the like are successfully solved, the highest product resolution can reach 4320 p to 12960 p, and the frame rate is 30 fps.
Owner:HEFEI & EXHIBITION TECH

Sacroiliac screw

ActiveUS9358057B1Enhance new bone growth and rapid fusion of fusionFast fusionInternal osteosythesisFastenersJoint fusionScrew thread
An improved joint fusion screw for transiliac fixation has an elongate hollow shaft. The hollow shaft has an externally threaded end portion extending to a tip end and a non-externally threaded shank portion having openings. The tip end has at least two bone cutting flutes at the bottom of the shaft. Each bone cutting flute has a cutting edge on a circumferential exterior of the threaded tip to cut bone and direct the cut bone internally into the hollow shaft toward the shank.
Owner:SPINAL ELEMENTS INC

Sacroiliac screw

An improved joint fusion screw for transiliac fixation has a screw head and extending therefrom an elongate hollow shaft. The hollow shaft has an externally threaded end portion extending to a tip end and a non-externally threaded shank portion having a plurality of window openings. At or near the tip end is a start of a thread with a bone cutting flute. The bone cutting flute has a cutting edge on a circumferential exterior of the threaded tip to cut bone and directs the cut bone internally into a bone receiving opening in the hollow shaft directly in front of the cutting flute. The cutting edge lies at the start of the thread extending radially above the bone receiving opening at least partially overhanging the opening configured to cut bone.
Owner:SPINAL ELEMENTS INC

Bottle cap containing solid-state beverage and beverage bottle with bottle cap

The invention discloses a bottle cap containing solid-state beverage and a beverage bottle with the bottle cap. The bottle cap comprises an upper cap body and a lower cap body which are fixed above a bottle opening, the upper cap body is connected to the outer side of the lower cap body in a sleeving manner, a containing cavity for containing and storing the solid-state beverage is formed inside the upper cap body and the lower cap body, and a sealing thin film is arranged in the bottom of the lower cap body; and a sealing ring is arranged at a port of the top end of the lower cap body, so that the containing cavity in the upper cap body and the lower cap body keeps sealed with the outside, and harmful effects such as wetting and deterioration of the solid-state beverage contained and stored in the containing cavity are prevented. A cross-shaped puncture pole in the upper cap body completely punctures the sealing thin film at the bottom of the lower cap body, the solid-state beverage falls into liquid-state beverage in a bottle body, and a user can swing the bottle body to accelerate fusion of the solid-state beverage and the liquid-state beverage in the bottle body while the solid-state beverage falls into the bottle body more rapidly. In-advanced separated storage can be carried out according to different flavors of the solid-state beverage and the liquid-state beverage, convenience is brought to different crowds, and different flavor requirements can be met.
Owner:杭州千岛湖饮料食品有限公司

Data processing and fusion method for large-scale traffic information

The invention discloses a data processing and fusion method for large-scale traffic information and belongs to real-time traffic information processing technologies. The method includes: obtaining normal data of a truth value according to multisource traffic data acquired by a test vehicle and each sensor, and determining a dynamic assignment method for parameters; rejecting abnormal data in data sets acquired by the sensors, and performing historical data compensation; and fusing real-time grading information of the multisource traffic data with data compensation completed. The truth value system is set up for obtaining correct initial assignment parameters of various acquisition modes and rejecting acquired abnormal data, missing data are reasonably filled according to the historical data to guarantee accuracy and integrity of the data, and the data acquired by different acquisition modes are graded and fused gradually to guarantee reliability of the data. Moreover, quickness in the fusion process is achieved, and influences of traffic incidents, traffic control, land occupation construction and traffic accidents on data in the fusion process are considered.
Owner:BEIJING TRANSPORTATION INFORMATION CENT +2

Non-cooperative target relative navigation motion estimation method and system based on multi-source information fusion

The invention relates to a non-cooperative target relative navigation motion estimation method and system based on multi-source information fusion. The method comprises the following steps of: givinga joint calibration method of a laser and visual measurement system, obtaining the reprojection information of a laser scanning point cloud in camera coordinate system based on the joint calibration system, respectively acquiring the depth compensation information of the target point and the compensated depth information by using a quadratic interpolation method, realizing information fusion between the laser scanning point cloud and the vision camera image, and finally acquiring the motion estimation of the target on the basis of the fusion information. The method provides a fusion method ofinformation of a vision camera and a laser scanner. The high precision depth information of the laser scanning point cloud can be used to compensate for the poor accuracy of the visual image in the depth direction, meanwhile, the defect of low resolution of laser scanning is avoided and the high precision of laser scanning depth information and high image resolution of visual measurement system are integrated. Meanwhile, the interpolation calculation method of information fusion is a simple algebraic operation, which is easy for engineering realization and application.
Owner:BEIJING INST OF SPACECRAFT SYST ENG

Preparation method and device of duramater/spinal dural transplanting substitute

ActiveCN102727935ASimple Surface Functional StructureWidely sourced and cheapProsthesisAntigenDefect repair
The invention provides a preparation method of a duramater / spinal dural transplanting substitute which is obtained by repeated freezing and thawing of dural tissue, rolling and cracking of cells, crosslinking fixed protection, accellular antigen extraction, dense surface fibrosis modification, packaging and sterilization, and has the advantages of simple method, wide raw material sources, cheap raw materials, and low cost. The prepared dural substitute completely removes components of cells and other antigen components simultaneously when protecting dural tissue natural structure and properties, is good in biocompatibility, free of immune rejection, safe and reliable, good in mechanical performance, and easy in clinical operation, can meet the needs of defect repair, has the function of promoting tissue regeneration as a loose surface is beneficial to the tissue fluid adsorption, active factor enrichment, and growth of blood vessels and cells, and has the advantages of rapidness in fusion with a host, biodegradable absorption, and good repair effect. The animal test shows that the defect can be completely repaired without brain or spinal fluid leakage, or adhesion with brain tissue, and significant rejection is not found.
Owner:SHAANXI BIO REGENERATIVE MEDICINE CO LTD

Multi-sensor fusion low-illumination video image enhancement method

ActiveCN105809640AMeet real-time requirementsTo achieve the effect of real-time displayImage enhancementImage analysisIlluminanceImage resolution
The invention relates to a multi-sensor fusion low-illumination video image enhancement method and belongs to the video image processing field. According to the method, matching is carried out according to characteristic similarities between videos from different sources; registration is performed on images from different sources by adopting a multi-scale SIFT algorithm; an accurate transformation matrix can be obtained based on the combination of the multi-scale SIFT algorithm and a RANSAC algorithm; the transformation matrix is utilized to perform interpolation on each frame in infrared video images and visible light video images, and therefore, images with different resolutions can be transformed into images with the same resolution, and problems in the registration of images with different resolutions can be solved; and fast fusion of the images is realized by using an alpha-based weighting algorithm, the fusion time of the images satisfies the real-time requirement of the videos, and therefore, real-time display of the videos can be realized. With the multi-sensor fusion low-illumination video image enhancement method adopted, the definition of the videos can be improved, and information contained by the clear videos is also rich and colorful, and follow-up processing can be facilitated.
Owner:CHANGCHUN UNIV OF SCI & TECH

Stable status zero-sequence current increase and assistance device and method

InactiveCN101055986AStrengthen the degree of failureFast fusionEmergency protective circuit arrangementsStable statusTransformer
The invention discloses a steady-state zero-sequence current increase-support apparatus and method. It has solved the shortcoming that the system fault electric amplitude of its own is small and difficult to detect, which occurs in the exsiting method of using the steady-state component in route selection and positioning. It has advantages such as transient amplification of the fault signal steady-state component after the single-phase ground fault occurs in the power network, which allows the route selection and positioning device based on the single-phase ground fault steady-state quantity, to accurate position, so at to achieve the purpose of positioning and route selection. Its structure is that: it includes a protected bus of the distribution system, and a steady-state zero-sequence current increase-support apparatus installed on the bus, which is connected to a voltage transformer, while the voltage transformer is connected to the bus; the increase-support apparatus is composed of a power capacitor group, on-off switches and a control device which monitors whether the single-phase ground fault occurs in the distribution system, while the power capacitor group help to increase the ground current, and the control device controls the on-off state of the power switch control group through the on-off switches.
Owner:UNIV OF JINAN

Data fusion method and device for multi-source heterogeneous sensors

The invention belongs to the technical field of data fusion, and provides a data fusion method and device for multi-source heterogeneous sensors. The method comprises the steps that measurement data of the various sensors are acquired, and time alignment is carried out on measurement data which are asynchronous in time and inconsistent in frequency through the spline fitting method; the measurement data obtained after alignment are grouped according to the classes and precision of the sensors; intra-group or inter-group combination is carried out on the grouped data, integrated measurement data of a target are provided, and preliminary estimation is carried out on the position of the target; linear transformation is carried out on a measurement equation with the preliminary estimation value of the position of the target as a reference point, and secondary estimation is carried out on the position of the target based on the weighted least square method. According to the data fusion method and device for the multi-source heterogeneous sensors, the three-layer fusion locating strategy is adopted, a monitoring system can acquire a high-precision target location value quickly, various kinds of target information collected by the acoustic / optical / electric sensors or other types of sensors at the front end of the system are fused more efficiently, and therefore the monitoring and commanding efficiency is improved.
Owner:MONITORING & CONTROL SYST ENG RES INST CHINESE PEOPLES LIBERATION ARMY AIR FORCE INST OF WARNING

Bone-repairing material for customizing and preparation method thereof

ActiveCN104147641AGrowth rate balancePromote differentiationProsthesisMedicineMass ratio
The invention relates to a bone repairing material for customization and a preparation method thereof. The bone repairing material comprises an organic material and an inorganic material in a mass ratio of (0.1-0.6):1, as well as protein coated lipid micro-sphere powder. The bone repairing material is capable of customized bone repairing, has biocompatibility and degradability, and has the characteristics of safety, solid network structure and balanced degradability required by a biological bone material.
Owner:SHENZHEN POLYTECHNIC

Intelligent ultrasonic multi-mode navigation system and method

The invention discloses an intelligent ultrasonic multi-modal navigation system and an intelligent ultrasonic multi-modal navigation method, which can be used for providing real-time three-dimensionalintraoperative information guidance for doctors in a multi-dimensional navigation information presentation mode through intelligent ultrasonic collection, positioning and real-time image processing integrated with a space-time characteristic mechanism in an intraoperative non-radiative operation environment.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Cervical vertebra uncovertebral joint fusion cage

The invention discloses a cervical vertebra uncovertebral joint fusion cage which comprises uncovertebral joint fusion components and a vertebrae inter elastic supporting body. The cross section of the vertebrae inter elastic supporting body is trapezoidal, and the front end of the vertebrae inter elastic supporting body is a small end. The two uncovertebral joint fusion components are connected to two waist outer side surfaces of the vertebrae inter elastic supporting body respectively and are of a cylindrical mesh structure, and baffles are connected to the side faces, away from the vertebrae inter elastic supporting body, of the uncovertebral joint fusion components. The cervical vertebra uncovertebral joint fusion cage can reduce cost, the fusion time is short, the wearing time of a neck collar is shortened, the comfort level of a patient is improved, an end plate does not need to be ground, the surgical time is shortened, and the sinking risk of prostheses after an operation is reduced.
Owner:山东康盛医疗器械股份有限公司

Physical image information fusion device and method

The invention provides a physical image information fusion device and a physical image information fusion method. The method comprises the following steps of: rapidly and accurately obtaining left and right viewpoint positions of a model space through characteristic edges of a real space characteristic cube, and generating left and right images of the model space; completely coinciding the characteristic cube in the left and right images of the model space and the real left and right image characteristic cube to realize rapid fusion of the physical image information; and judging whether the viewpoint is changed by detecting whether the current real image is coincided with the characteristic points of the characteristic cube in the previous real image, and calculating a new viewpoint coordinate so as to generate a new model left and right image when the viewpoint is changed. The three-dimensional simulation of an assembly environment is realized based on a three-dimensional display mode, so that an operator has a feeling of being personally on the scene, the position of a real assembling unit is sensed through binocular vision, a virtual assembling unit model is established, the virtual assembling unit and the real assembling unit are fused, and the information world and the physical world are combined.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Multi-source information fusion-based urban data service system and method

In order to achieve the purposes of unified integration, display, and management of massive cross-business data in the city, the present invention proposes a multi-source information fusion-based urban data service system and urban data processing method. The technical scheme is characterized in that: multi-source city information is preprocessed to realize information cleaning and transformation;multi-source information is initially fused through a support vector machine classifier; and an initial fusion result is further optimized through a genetic algorithm to obtain a final fusion result,and the final fusion result is displayed to users through the graphical wizard interface. According to the technical scheme of the present invention, multi-source city information fusion is realized,and information from different sources can be quickly aggregated, reorganized and correlated, so that the technical scheme can effectively serve the city information management.
Owner:THE 28TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP

High-durability waterproof anti-cracking mortar

The invention belongs to the technical field of architectural energy-saving materials, and particularly relates to a high-durability waterproof anti-cracking mortar. The high-durability waterproof anti-cracking mortar is composed of the following components in percentage by mass: 32-55% of cement, 36-60% of sand, 3-12% of fly ash, 0.5-3% of polymer latex powder, 0.1-1% of waterproofing agent, 0.2-1% of modified fiber and 0.5-1.6% of auxiliary additive. The high-durability waterproof anti-cracking mortar is applicable to external wall anti-cracking layers and waterproof layers of multiple insulation systems. The product has the advantages of convenient production and construction process, high tensile and binding strength, low ratio of bending-compressive strength and low permeability. After half a year, the test proves that the product still has excellent waterproofness and crack resistance, and thus, has outstanding durability.
Owner:安唛杰节能建材科技(上海)有限公司

Method for molding carbon fiber product

The invention discloses a method for molding a carbon fiber product, which comprises: a step 1 of processing an inner core body, in which a core body adaptive to the shape of the carbon fiber product is processed by adopting a foam material with the characteristic of thermal contraction; a step 2 of wrapping with an air bag, in which the outside of the core body is wrapped with an air bag, and an air inlet nozzle which is connected with the air bag is arranged; a step 3 of wrapping with a plurality of carbon fiber layers, in which the outside of the air bag is wrapped with a plurality of carbon fiber layers, and then the air bag is put into a die; a step 4 of heating curing, in which steam or hot air is led into the air bag through the air inlet nozzle for heating, the heating ensures that the inner core body shrinks, the shrinking ensures that a gap is formed between the air bag and the inner core body, the gap forms a conveying air duct, and the steam or the hot wind flows in the conveying air duct and heats the plurality of the carbon fiber layers so as to fuse the carbon fiber layers and solidify the product; a step 5 of cooling with water, in which the air inlet nozzle and an air outlet nozzle are adopted; and a step 6 of taking out the core body, in which the die is opened for taking out the inner core body. The technical proposal of the method has the advantages of less heating consumption, high molding efficiency and cost reduction.
Owner:王景辉

Method for trust collaborative services for maritime edge computing network

The invention discloses a method for trust collaborative services for maritime edge computing network (TCSMEC). The method is based on a collaborative filtering idea. A network heartbeat information piggyback technology is adopted, fusing the node similarity relationship, the network behavior, the link feature and the neighbor similarity node to construct a local trust network, recommendation is carried out based on the service capability, the service quality, the load, the trust relationship between the nodes and other characteristics of the edge computing service nodes. a quartile method isadopted to filter service quality evaluation information to improve recommendation effectiveness. Self-adaptive edge computing service access and rapid resource fusion are realized through queue hierarchical control. Simulation experiments show that compared with ADOV and RandomWalk methods, the TCSMEC has the advantages that the service energy consumption, the load efficiency, the link transmission rate and the like are obviously dominated, and the TCSMEC can efficiently realize the marine edge computing trusted collaborative task migration service in a complex marine meteorological environment.
Owner:JIAXING UNIV

Efficient stirring equipment

The invention provides efficient stirring equipment and relates to the field of machinery. The efficient stirring equipment comprises a fixing base, wherein an outer stirring bucket is fixedly connected with the top of the fixing base; damping casings are fixedly connected with the bottom of the inner wall of the outer stirring bucket; the damping casings are internally provided with damping springs; support jacking rods are fixedly connected with the ends far away from the outer stirring bucket, of the damping springs; the end far away from the damping spring, of each support jacking rod, penetrates through each damping casing and extends outside the damping casing; the end far away from each support spring, of the support jacking rod, is fixedly connected with an inner stirring bucket; stirring blocks are fixedly connected with the inner wall of the inner stirring bucket; a fixing plate is fixedly connected with the bottom of the inner stirring bucket. By adopting the efficient stirring equipment, rotation of an eccentric block is driven by rotation of a vibration motor, then vibration operation is implemented to the inner stirring bucket, combination of materials stirred insidethe inner stirring bucket is effectively accelerated, and the stirring efficiency of the stirring device is improved through vibration of the inner stirring bucket.
Owner:赵顺豪

NAND FLASH-based spaceborne permanent storage multi-source data file system

ActiveCN108153487AFlexible management applicationFlexible handling of operationsInput/output to record carriersData streamFile system
Provided is an NAND FLASH-based spaceborne permanent storage multi-source data file system. The system includes a multi-source load data flow control module, multi-source data multi-file address management module, a system information table creation module, a file directory table creation module and a file address information table creation module. The system breaks the limitation that traditionalspaceborne permanent storage cannot independently generate files according to a load type when multi-source load data is input simultaneously, solves the problems of constraint of the traditional permanent storage when a load task is executed, complicated operation achievement processes and high requirement of spaceborne hardware resources, and achieves rapid download of one or several specific load data which a user cares about and fusion processing of the spaceborne multi-source load data.
Owner:XIAN INSTITUE OF SPACE RADIO TECH

Protective element

The present invention reduces a melting time without causing an increase in the man-hours for manufacturing a fusible conductor. The present invention is provided with an insulated substrate (11), a heating element (14), an insulating member (15) for covering the heating element (14), a heating element extraction electrode (16) electrically connected to the heating element (14), a first and a second electrode (12), and a fusible conductor (13) connected to the heating element extraction electrode (16) and through to the first and second electrodes (12), the fusible conductor (13) cutting, by melting, a current path between the first electrode (12)(A1) and the second electrode (12)(A2). The fusible conductor (13) is formed in greater thickness than a principal surface part (25), and has a pair of first side edge parts (26) facing each other and a pair of second side edge parts (27) facing each other and formed in lesser thickness than the first side edge parts, the second side edge parts (27) being disposed along the current path extending from the heating element extraction electrode (16) to the first and second electrodes (12).
Owner:DEXERIALS CORP

High-efficiency PVC raw material stirring device for medicine packaging

The invention relates to a stirring device, particularly to a high-efficiency PVC raw material stirring device for medicine packaging, and provides the simple-operation convenient-utilization high-efficiency PVC raw material stirring device for medicine packaging. The high-efficiency PVC raw material stirring device for medicine packaging provided to solve the technical problem comprises a bottom plate, a side plate, a rotating mechanism, a feeding mechanism, a stirring basket, a stirring mechanism, a front back moving mechanism, a left right moving mechanism, a second stay wire, a first fixed pulley, and the like, and a partition is fixedly connected with the other end part of the bottom plate; the rotating mechanism is fixedly connected with the bottom plate and is between the side plate and the partition; and the feeding mechanism is fixedly connected with one side surface of the side plate. According to the high-efficiency PVC raw material stirring device, the effects of automatic and comprehensive stirring of PVC raw materials and high safety are achieved, the rotating mechanism can rotate the stirring basket, and the stirring basket rotates to achieve the effect of rotatably changing the stirring position.
Owner:南京金陵化工厂有限责任公司

Gas welding sealing process of 60 MPa ultrahigh-pressure cylinder

The invention relates to a gas welding sealing process of a 60 MPa ultrahigh-pressure cylinder. The gas welding sealing process comprises a high-pressure cylinder filling method, a sealing method and a pressure welding sealing method. According to the gas welding sealing process, a welding sealing fixture is designed, so as to fill the cylinder, and a filling and releasing replacement method is adopted, so that the purity and a dew point of gas in the cylinder reach the required requirements; a sealing method that a sealing needle is in interference fit with a filling mouth hole is adopted, and a knocking method is adopted, so as to perform mechanical sealing on the high-pressure gas in the cylinder; the filling mouth hole is welded by adopting a welding method, so that the welding penetration reaches the requirements. According to the filling, sealing and welding sealing process, the high-performance technical index requirements are guaranteed, the purity of nitrogen in the cylinder is more than 99.98%, and the dew point is lower than -55 DEG C; after welding sealing, air tightness inspection is performed on a filling mouth, air leakage is not permitted, and the welding penetration is not less than 0.5 mm by inspection.
Owner:SHENYANG AEROSPACE XINGUANG GRP

Word vector generation method based on Gaussian distribution

ActiveCN108733647AAvoid Point Estimation FeaturesFix the problem of assuming a fixed number of sensesSemantic analysisCharacter and pattern recognitionInclusion relationAlgorithm
The present invention discloses a word vector generation method based on the Gaussian distribution. The method comprises: firstly, preprocessing the corpus; secondly, using the punctuation to performtext division on the corpus; then combining the local and global information to infer the word meaning, and determining the mapping relationship between the word and the word meaning; and finally, obtaining a word vector by optimizing the objective function. The innovations and beneficial effects of the technical scheme of the present invention are as follows that: 1, words are represented based on the Gaussian distribution, point estimation characteristics of traditional word vectors are avoided, and more abundant information such as probabilistic quality, meaning connotation, an inclusion relationship, and the like can be brought to the word vectors; 2, multiple Gaussian distributions are used to represent the words, so that the linguistic characteristics of a word in the natural language can be coopered with; and 3, the similarity between the Gaussian distributions is defined based on the Hellinger distance, and by combining parameter updating and word meaning discrimination, the number of word meanings can be inferred adaptively, and the problem that the number of hypothetical word meanings of the model in the prior art is fixed is solved.
Owner:SUN YAT SEN UNIV
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