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95results about How to "Tightness" patented technology

Valved plug for endoscopic biopsy channel

InactiveUS20040167379A1Suppress degradations in hermetical tightness of a slitImprove stabilityInfusion devicesSurgeryMouth pieceEngineering
A valved plug to be fitted on a mouth piece at an inlet opening of an endoscopic biopsy channel. The plug as a whole is formed of a resilient material, and has, at the opposite ends of a foldable connecting strip or string, a generally tubular main body portion which is provided with a constricted portion in its axial passage, and a valved nesting piece which is adapted to be detachably coupled with the main body portion and provided with a normally closed slit valve axially in an aligned position relative to the constricted passage on the side of the main body portion. The main body portion is provided with an inward interlocking projection of a predetermined thickness at its outer end, for tight interlocking engagement with an interlocking groove which is provided on the side of the nesting piece in such a way as to grip the interlocking projection tightly in a compressed state.
Owner:FUJI PHOTO OPTICAL CO LTD

Method for evaluating implementation quality of software process

InactiveCN101710304AFlexible indicator organizationCovering the whole life cycleSoftware testing/debuggingImplementation qualityComputer Software Engineering
The invention discloses a method for evaluating the implementation quality of a software process, which belongs to the field of computer software engineering. The method comprises the following steps that: 1) a user selects an evaluation model or a standard of the software process from an evaluation standard library by using an evaluation standard selection module; 2) an index system establishment module establishes an measurement index system by adopting a target-problem-measurement method or a utility software measurement method; 3) an index measurement data acquisition module performs data acquisition on the software process to be evaluated according to the established measurement index system, and simultaneously, an index weight determination module determines the weight of each measurement index according to the established measurement index system; 4) a comprehensive evaluation computing module performs numerical value standardization and form unitization on the acquired data; and 5) the comprehensive evaluation computing module evaluates the processed data by adopting a fuzzy comprehensive evaluation method and outputs the evaluation result. The method not only ensures flexibility and the strictness of the result, but also ensures the accuracy of the evaluation process and the validity of the evaluation result.
Owner:INST OF SOFTWARE - CHINESE ACAD OF SCI

Laser hybrid welding method and laser hybrid welding torch using a zinc and/or carbon and/or aluminum-containing rod

The invention relates to a method for welding coated sheet metal (3), which comprises at least one laser (13) and at least one shielded arc unit (5) and a rod feeding device (11) for a welding rod (12). The aim of the invention is to provide a method or a device of the aforementioned kind which allows fo˜ reducing or completely avoiding inclusions such as are e.g. caused by the evaporation of the coating of the metal sheet (3). For this purpose, a clamping device (6) is used for positioning the coated metal sheet (3) without substantial gaps between the individual sheets. A material having a zinc and / or carbon and / or aluminum content is used as the weld metal or welding rod (12).
Owner:FRONIUS INTERNATIONAL GMBH

Electric text similarity processing method and system convenient for query

Disclosed is an electronic text processing method convenient for query and search, and retrieval or search system of similar contents comparing process device comprising keyword search. The invention makes a comparison among similar contents in the delimitation limit of various text keyword search, determining and classifying similar contents depending on whether which have similarities, so as to perform the executions such as separating subsets, arranging various sequences or forming directories, sorting, displaying interface and the like. The invention can considerably improve the convenience and tightness of information retrieval or network information search.
Owner:刘二中

Analogue simulation method for electromagnetic elastic coupling of layering shell made of electromagnetic materials

InactiveCN103886165AHigh accuracy of 3D field distributionSmall amount of calculationSpecial data processing applicationsComputer resourcesExtension principle
The invention provides an analogue simulation method for electromagnetic elastic coupling of a layering shell made of electromagnetic materials. A three-dimensional energy equation including the electricity-magnetism-elastic coupling effect is established based on the Hamilton extension principle; three-dimensional energy is asymptotically extended into serial two-dimensional recursion energy based on the variation asymptotic method, a leading variation item in the two-dimensional recursion energy is corrected asymptotically through inherent small parameters of the shell, and therefore a correction model close to the original three-dimensional energy as much as possible is obtained and is converted into the Reissner-Mindlin model form commonly used in the engineering; a three-dimensional variation reconstruction relation is inferred based on the obtained two-dimensional overall response and all levels of warping functions. The apriority hypothesis is not needed in the model, the structural electromagnetic elastic coupling performance under the function of various fields can be accurately predicted, the calculated amount is small, calculating efficiency is higher than that of the high-order set theory and the three-dimensional finite element solution, and the number of resources occupied in a computer is small.
Owner:CHONGQING UNIV

Satellite multispectral image registration method based on object space positioning consistency

The invention discloses a satellite multispectral image registration method based on object space positioning consistency. The method comprises the following steps: selecting a certain spectrum in a multispectral camera as a reference spectrum, taking the residual spectrums as non-reference spectrums, respectively performing on-track calibration aiming at the relative geometric distortion between each non-reference spectrum and the reference spectrum, and saving the calibration result; establishing a strict geometric imaging model of each spectrum by utilizing the saved calibration result based on the object space positioning consistency, and performing accurate registration on the non-reference spectrums and the reference spectrum. The invention provides an optical satellite multispectral image high-precision automatic registration method of really geometrical significance, the satellite multispectral image can be subjected to high-precision automatic registration without carrying out image matching, the processing efficiency is improved, and the registration quality is irrelevant to the image quality and ground feature types; and meanwhile, a geometric correction model between wave bands is the strict geometric imaging model and has strictness in theory. The practice proves that the method is feasible, effective, stable in registration quality and high in precision.
Owner:WUHAN UNIV

Method for predicting effective stress relaxation coefficient of polymer matrix composite

The invention provides a method for predicting the effective stress relaxation coefficient of a polymer matrix composite.The method includes the steps that firstly, a linear viscoelatic material constitutive equation in a time intra-domain integral form is established based on the Boltzmann superposition principle; then the effective stress relaxation rigidity of the polymer matrix composite formed by periodic unit cells is defined; then a mesomechanics model for solving an effective stress relaxation rigidity matrix of the polymer matrix composite is established based on the variation asymptotic homogenization theory; finally the effective stress relaxation rigidity of the polymer matrix composite is predicted based on the established mesomechanics model.According to the method, attributes of different materials in different directions can be obtained in the one-time solving process, and compared with a method in which rerunning is conducted under different loading conditions, the method is simpler, more convenient, more efficient and rapider.The calculated effective stress relaxation coefficient is consistent with the precision of a wave function, no more approximation relations need to be introduced, calculation precision is higher, and the strength and service life of the polymer matrix composite are predicted more accurately.
Owner:CHONGQING UNIV

Cosmetics

Cosmetics containing the following components (A) and (B): (A) an oil-absorbing powder having a squalane-absorbing ability of 1 ml / g or more; and (B) a compound having an affinity for component (A) lower than that of sebum, and having an ability to absorb the sebum and release component (B) in exchange for the sebum when the cosmetic is applied onto the skin. These cosmetics can adequately absorb the sebum and thus exhibit excellent effects of relieving or preventing oiliness of the skin and worsening in makeup. By selecting an appropriate compound to be released in exchange for the absorbed sebum, a substance capable of improving the skin qualities such as moistness, tightness, and tension can be allowed to penetrate into the skin. Moreover, a bodily feeling of the removal of the sebum can be imparted to users thereby.
Owner:KAO CORP

Method for simulating effective time varying and super-elastic responses of SMA polymer base material

The invention provides a method for simulating effective time varying and super-elastic responses of an SMA polymer base material.The method comprises the steps that increment constitutive equations of a component material are set up, wherein the constitutive equation of a linear heat-viscoelastic polymer within a time domain and the three-dimension increment heat-force coupling constitutive equation of SMA are set up; an SMA polymer base material uniform increment constitutive equation is set up; a micro-mechanical model for solving the effective material attributes and a wave function of the SMA polymer base material is set up based on the theory of variational asymptotic homogenization; a local field reconstitution relationship is set up based on the wave function and the overall responses; finally, the effective time varying and super-elastic behavior characteristics of the SMA polymer base material are described.According to the method, the non-obligatory boundary conditions are adopted, the attributes of different materials in different directions can be obtained simply through one solving process, and compared with a method repeatedly operated under different loading conditions, the method is simpler, more convenient, more efficient and faster.
Owner:CHONGQING UNIV

Power battery cover plate and substrate thereof

The invention discloses a power battery cover plate and a substrate thereof. A positive pole hole and a negative pole hole through which a positive pole and a negative pole pass are formed in the substrate respectively; square steps are formed on the upper surface of the positive pole hole and the lower surface of the negative pole hole respectively; a circle of nick with an inverted triangular section is further formed on the peripheral upper surface of the negative pole hole. The invention further discloses a power battery cover plate which comprises the substrate. A step embedded into the square step in the positive pole hole in a matching way is formed on the upper surface of the substrate for the positive pole; the positive pole is welded together with the upper surface of the substrate; the positive pole is sleeved with a positive pole protection rubber cushion on the upper surface of the substrate; the negative pole and the negative pole hole are connected with each other in an electrically insulated way through a sealing gasket wrapping the positive pole hole; the sealing gasket is provided with a convex ring embedded into the inverted triangular nick on the upper surface of the substrate. The power battery cover plate and the substrate have the advantages of improving the safety performance of batteries and realizing rapid assembly.
Owner:SHENZHEN KEDALI IND CO LTD

Method for forecasting thermoelasticity valid attribute and local field of composite material

InactiveCN103984869ATightnessEasy to repeat programsSpecial data processing applicationsResearch ObjectEuler–Lagrange equation
The invention provides a method for forecasting thermoelasticity valid attribute and local field of a composite material. The method comprises the following steps: acquiring the sum of Helmholtz free energies stored in all unit cells by using heterogeneous and periodically-distributed microstructure of the composite material as a study object; converting thermoelasticity analysis and solution problem into the problem of minimizing-acquiring stationary value in an energy equation under a restricted condition; performing variational analysis for the energy equation to obtain an Euler-Lagrange equation set for solving a wave function and corresponding inhomogeneous boundary conditions; rewriting the energy equation into a discrete form by the numerical analysis technology-finite element method; solving to obtain the density of Helmholtz free energies of the unit cells; applying a constitutive model using the density as an effective medium to the composite material; then changing the load and temperature conditions of the composite material to analyze the local field of the composite material. The method is high in practicability, high in universality, and can obviously raise the calculating speed and efficiency for such problems.
Owner:CHONGQING UNIV

Japanese encephalitis virus like particles as well as preparation method and application thereof

InactiveCN102329784AReserve spaceReserved epitopeViral antigen ingredientsInactivation/attenuationJapanese B Encephalitis VirusReverse transcriptase
The invention discloses Japanese encephalitis virus like particles as well as a preparation method and an application thereof. The Japanese encephalitis virus like particles are prepared by assembling a PrM/E gene of a Japanese Encephalitis virus (JEV) and a JEVRNA replicor with a nucleotide sequence as shown in SEQ ID NO: 1. The preparation method of the Japanese encephalitis virus like particles comprises the steps of: connecting the JEV PrM/E gene amplified by an RT-PCR (Reverse Transcriptase Polymerase Chain Reaction) to a plasmid pTRE-Tight of a Tet-on advance expression system to form a recombination vector, transfecting a Hela Tet-on advanced cell by using an Xfect method, after screening and identifying through HygB, obtaining a Hela cell line for controllably and stably expressing the PrM/E gene through a limiting dilution process, inducing for expressing a PrM/E protein, and packaging to obtain the conventional virus like particles; and transfecting the Hela cell line by using a JEV replicor RNA vector and packaging to obtain the virus like particles with a capacity of transient infection. The Japanese encephalitis virus like particles can be used for preparing a vaccine or used as a detection agent, has better immunogenicity and reactivity, and is safe and reliable.
Owner:SOUTH CHINA AGRI UNIV

Two-Part high voltage vacuum feed through for an electron tube

ActiveUS20150325400A1Guarantee tightnessGreat reliabilityX-ray tube electrodesX-ray tube vessels/containerMetallic materialsHigh pressure
A high voltage vacuum feed through (23) for an electron tube (25) has an anode (28) and an insulating body (1) of ceramic material, the insulating body (1) having a continuous hollow space (10). The anode (28) has a rear part (2) and a front part (3) mounted thereto. The rear part (2) consists of a first metallic material, having a thermal expansion coefficient corresponding to a thermal expansion coefficient of the ceramic material. The rear part (2) is arranged in the hollow space (10) of the insulating body (1) and is soldered into the insulating body (1) in a vacuum-tight fashion. The front part (3) has a second metallic material whose heat conductivity is larger than that of the first metallic material. The high voltage vacuum feed through reliably remains vacuum-tight during operation and can be easily provided with different target materials.
Owner:TRIBO LABS +1
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