31results about How to "Save research money" patented technology

The invention provides a fastening piece for a compressed column test of a building structure, which relates to a protective device for axially compressing or bias compressing a specimen column end in a building structure test. The protective device comprises a steel plate and bolts, wherein a lug which is folded outward is arranged at the end part of the steel plate; a center drilling hole without screw threads is arranged at the center of the lug; a small hole with screw threads is arranged at the center of the steel plate; the center drilling hole is matched with a connecting bolt for use;and the small hole is matched with a fastening bolt for use. The protective device can solve the problems existing in the current building structure test to ensure that the loaded column end can not be damaged before a specimen reaches the ultimate bearing capacity. In the test of a concrete filled steel tubular (CFST) column, the protective device of the invention can also be used for avoiding the defect that the welding quality between a tube wall at the column end and a loaded plate is poor so that the column end is bent firstly.

The invention discloses a plant transgenic visual tracking expression system and application thereof. The plant transgenic visual tracking expression system is a plant expression vector which contains a visual marker gene expression kit, the visual marker gene expression kit consists of an expression kit of a transcription factor bi gene in the anthocyanin biosynthetic pathway and an expression kit of a transcription factor cl gene in the anthocyanin biosynthetic pathway. The color regulator gene is applied on plant genetic transformation operation, the screening work is effectively relieved after the transformation, according to the gene performance on the plant, the valuable transformation materials can be selectively kept, accordingly, the screening time and the research cost are greatly saved, the accuracy and the reliability of the experimental result are greatly improved, so good foundation is laid for carrying out analysis work after the transformation. In addition, the transient expression of the color gene is utilized, the transformation effect can be visually and more directly analyzed, and accordingly, various transformation influencing factors are prevented from being generated.

The invention discloses a manufacture method for analysis earth that includes the following steps: taking physical characteristic analysis to parent soil and the matter properties experiment of particle, proportion, density, unit weight and permeability coefficient; gaining the particle class curve, density, penetrating parameter from the experiments; fetching sample earth to make it close to the particle class curve; taking mechanical property and analysis of triaxiality compression shear; when the sample earth has the corresponding stress-strain, deformation-strain and penetrating parameter, taking large quantity matching according to the sample earth. The invention has close statics feature as undisturbed sand that could sharply save research outlay and shorten research process.

The invention discloses a device and a method for testing a non-uniform pressure field of a viscous medium during pressure forming, and relates to a test device and a test method. The invention aims to solve the problems that the existing method and device cannot easily test deformation behaviors of instability wrinkling and wrinkle elimination under the action of various non-uniform velocity fields and pressure fields during necking of a large-diameter-ratio thin-wall or ultrathin-wall pipe, and each mold device can only test the influence of one loading mode on the non-uniform pressure field on the surface of a cylinder blank each time. The device disclosed by the invention is reasonable in structural design and is comprehensive and accurate in test data. The test method comprises the following steps: injecting the viscous medium by multiple pistons at different speeds; measuring the injection pressure in real time by virtue of a pressure sensor; and controlling the injection pressure of the viscous medium by virtue of reciprocating of the pistons to form multiple non-uniform pressure fields and velocity fields in a medium cabin so as to ensure that a pipe blank is subjected to necking deformation under different conditions. The device and the method disclosed by the invention are used for researching the influence of a loading mode of the viscous medium on pressure diameter reduction of a pipe blank viscous medium.

A method for characterizing the interface mechanism of epoxy resin composite material relates to a method for characterizing the interface mechanism of epoxy resin composite material, which solves the problems, such as high requirement for technology, high cost in experiment constructed by Au element and instable effect of experiment, of the research of interface phenomena of epoxy resin composite material through the current molecular self-assembly film technology. The method comprises: 1, simulation to obtain self-assembly modeling system; 2, establishment of the interface structure of the modeling system and epoxy resin; 3, calculation for the interface structure through molecular dynamics to evaluate the effects of different functional groups on the interface performance of epoxy resin composite material. The invention is easy to implement without actual operation, requirement in operating skill or use of Au element to save a lot of research fees with stable and reliable experimental result and greatly reduced experimental time and period.

The present invention relates to marine biology, paleoceanography, sedimentary geology and other disciplines, and can be applied in the fields of foraminifer species identification research, marine environment indication research, paleoenvironment reconstruction and global change research, etc. Specifically, it is a A rapid preparation method for deep-sea foraminifera lumen structure grinding plate. Foraminifera isolated from deep-sea sediments were treated with gum immersion, hanging drop embedding, position adjustment and water grinding, that is, complete grinding of the inner cavity structure of deep-sea foraminifera was quickly obtained. The invention can more accurately identify the species of the foraminifera through the level information obtained by grinding, and avoid scientific confusion such as identification errors caused by external morphological variations such as the shape, texture, and number of chambers of the foraminifera. The invention provides accurate scientific basis and quick problem-solving scheme for the accurate identification of types of deep-sea foraminifera and the research on indications to the marine environment, paleoenvironment reconstruction research, global change research and other subject fields.

The invention discloses a multi-factor and multi-level visualized analysis method for preparation of high performance modified emulsified asphalt. The method comprises the steps of: 1. analyzing the influence of the particle sizes and gradation of four stone materials on the mixing stability, flow value and impact resistance of high performance modified emulsified asphalt; 2. analyzing the influence of mineral powder ratio on the mixing stability, flow value and impact resistance of high performance modified emulsified asphalt; 3. analyzing the influence of oil-stone ratio on the mixing stability, flow value and impact resistance of high performance modified emulsified asphalt; 4. analyzing the influence of mutual interaction of the four stone materials' particle sizes and gradation, the mineral powder ratio and the oil-stone ratio on the mixing stability, flow value and impact resistance of high performance modified emulsified asphalt; and 5. combining the above four steps to look for the optimal gradation, mineral powder ratio and oil-stone ratio. The method provided by the invention has the advantages of field pertinence, higher accuracy, better scientificity, short research period, declined research funding, and direct and reliable results.

The invention relates to a non-degenerate polarization-entangled source system utilizing a periodically polarized lithium niobate thin film waveguide, and an operating method thereof. The non-degenerate polarization-entangled source system comprises a laser, a first half-wave plate, a dichroic mirror, a first detector, a second detector, a polarization beam splitter, a second half-wave plate, a first reflector, a second reflector and the periodically polarized lithium niobate thin film waveguide. The required entangled source structure can be obtained by using just one piece of periodically polarized crystal, laser is split into two possible paths by means of the polarization beam splitter, then the two possible paths of laser pass through the periodically polarized optical waveguide fromopposite directions, pump light generates an entangled phonton pair in each of the two paths. The non-degenerate polarization-entangled source system is compact in device structure, and optical components used in the interferometer portion can be manufactured in an integrated optical path, thereby laying a foundation for integration and scale production of the entangled source.

The invention discloses a bridgehead settlement compensation amount test device and method. The device comprises a pressurization unit, a model case and a control system. The pressurization unit comprises a frame, an oil cylinder, a pressure head and a guiding mechanism. The frame has a U-shaped structure and comprises a first support leg, a second support leg and a crossbeam. The oil cylinder is arranged in the middle of the crossbeam, the cylinder body of the oil cylinder is fixedly connected to the crossbeam, the end of a piston rod is provided with the pressure head and the guiding mechanism is arranged between the pressure head and the frame. The model case comprises a case body, a roadbed pavement model, a displacement sensor and several steel pipes. The roadbed pavement model is arranged in the case body. The upper part of the case body is provided with the displacement sensor. The several steel pipes go through the case body and are connected to the case body. The steel pipes are provided with water leakage apertures. Through simulation of different pavement structures, a relationship of a swelling amount increasing rule, compensation layer position, thickness, lateral confinement and compaction rate, and a lime slurry injection amount is researched and the relationship lays the foundation of design index formation.

The invention provides a method and device used for monitoring and predicting scales in a combustor. The method comprises steps of by acquiring one kind of or various kinds of combustion signals of the combustor and / or a gas system corresponding to the combustor; determining combustor performance models corresponding to the combustion state signals according to the combustion signals; acquiring acombustor performance reference model corresponding to the combustor; and finally, according to the combustor performance model, by combining the combustor performance reference model, determining early warning information corresponding to the combustor. Thus, the generated combustor performance model is quite practical; by use of the method and the device, large quantity of research funds and usecost can be reduced; the scales and the development trend of the combustor can be monitored and predicted in a quite simple and convenient mode; and the method and the device can be used for strategyplanning of maintenance of economical combustors or gas turbines.

The invention provides a method and a system for determining a long chain organic compound structure by using nuclear magnetic resonance carbon spectrum data. The method comprises the following steps of inputting the carbon spectrum data of the long chain organic compound with an undetermined structure, and setting a parameter condition of the input carbon spectrum data, wherein the parameter condition comprises a deuterium reagent and a tolerance value; extracting the carbon spectrum data of an organic compound with a known structure matched with the deuterium reagent in the parameter condition from a database, and reading the carbon spectrum data into a temporary table; circularly comparing each group of carbon spectrum data in the temporary table and the input carbon spectrum data, wherein each group of carbon spectrum data in the temporary table comprises precise carbon spectrum data and non-precise carbon spectrum data; recording the number of carbon spectrum values of each group of carbon spectrum data in the temporary table successfully matched with the input carbon spectrum data; calculating the matching similarity of each group of carbon spectrum data in the temporary table and the input carbon spectrum data. By the method, research time is reduced, the scientific research efficiency is improved, and the scientific research cost is reduced.

The invention relates to recombinant salmonella capable of expressing red fluorescence protein and a building method of the recombinant salmonella. The clinically isolated salmonella is utilized as a transformation receptor, plasmids pFPV-mCherry with red fluorescence protein gene segments inserted enter a bacterium through electroporation, and the salmonella capable of expressing the red fluorescence protein is built accordingly. The built recombinant salmonella can be used for marking and tracing in-vitro and in-vivo test processes of the salmonella, and the problem that the real-time monitoring cannot be performed in the salmonella test is solved; the recombinant salmonella can express the fluorescence protein and can replace an expensive salmonella specific antibody, not only is the research grant saved, but also the false positive caused by utilization of the antibody is greatly reduced; co-localization can be performed through combination with immunofluorescent staining with related protein, and an effective means is provided for in-depth study of the clinically isolated salmonella.

The invention provides time and temperature control equipment for fluorescent staining of tissue specimens, which solves the problem of too many uncertain factors affecting experimental results in artificial operation steps in fluorescent staining experiments. The invention comprises a box body, on which a vertical pole is arranged, on which a dripping mechanism capable of controlling the infusion amount of the fluorescent agent is arranged, and a test chamber for constant temperature heating and preservation of samples is arranged on the box body below the dripping mechanism. The sample constant temperature storage mechanism, the sample constant temperature storage mechanism can be rotatably installed on the box body, and the box body on the right side of the sample constant temperature storage mechanism is provided with a movable installation platform, which is used to install the fluorescence microscope; the box body is also equipped with There are consoles for controlling the instillation mechanism and the constant temperature storage mechanism for samples. The present invention uses electrical control means to replace the original manual operation steps, which greatly improves the accuracy of the experimental results, effectively avoids the abandonment of experiments due to human accidents, and can save a lot of research time and research funds.

The invention discloses a method for measuring multiple parameters of retina of a living mouse. The method comprises the following steps: fixing a mouse, which is successfully anesthetized, on a three-dimensional experiment table; assembling a plano-concave lens, a front lens and an optical coherence tomography (OCT) instrument; adjusting the three-dimensional experiment table to ensure that the eyeballs of the mouse are positioned right ahead the front lens, and that a clear retina scanning eye fundus image appears on a display screen of the OCT instrument; selecting a high-definition one-line scanning mode to obtain a cross-sectional image of the total retina of the mouse, and measuring the thickness of each layer on the retina of the mouse; selecting a retinal volume mode, aligning the center of a cross scanning line with the optic disk of the mouse to measure the average thickness and volume of nine subareas of the retina of the mouse, and reconstructing the form of the retina of the mouse in a three-dimensional mode; and finally, selecting an optic disk scanning mode to acquire continuous thickness data of a nerve fiber layer of the retina. The method has the characteristics of high simplicity and feasibility, high repeatability, accurate result and zero external environment interference and is suitable for popularization and application.