38results about How to "Rich research methods" patented technology

The invention discloses a novel method for preparing bionic adhesion micron-sized pillar arrays with different top end shapes. Top end structures are spatula-shaped, arc-shaped, planar and sunken respectively; pillars have micron-grade diameters; and the array has a high-aspect ratio structure. The method comprises the following steps of: forming a micron-sized pillar array on a silicon substrateby utilizing ultraviolet lithography and inductively-coupled plasma etching as main technical means; preparing a soft template with a micron-sized hole array structure by taking polydimethylsiloxane as a replication material; and performing film molding and curing on the solvent solution of high polymer material in the template by adopting different processes to obtain bionic adhesion micron-sized pillar array materials. The bionic adhesion materials obtained by the method have potential application value in the fields of biomedicine, precision industries, climbing robots and the like.

The invention discloses an ultrasonic-assisted laser material additive manufacturing device, which comprises a precise double-shaft numerical control rotating table, a support fastening base, a mold, an ultrasonic device, a base plate and a powder supply spray nozzle, wherein the precise double-shaft numerical control rotating table mainly consists of a double-support rotating table and a processing table; the support fastening base is arranged on the processing table; the mold is arranged on the support fastening base and is provided with a groove; the ultrasonic device is arranged in a way of passing through the processing table and the support fastening base and is connected with the bottom of the mold; the base plate is arranged in the groove formed in the mold; the powder supply spray nozzle is positioned above the base plate. The invention also provides a realization method of the ultrasonic-assisted laser material additive manufacturing device. The ultrasonic vibration is transmitted to the base plate, so that the base plate generates resonance; ultrasonic vibration stirring is performed in a molten pool formed under the laser effect in the laser material additive manufacturing process; a cavitation effect and a mechanical effect are generated; the combination state between layers can be improved; the formation probability of microsegregation and air holes inside forming elements can be reduced; meanwhile, crystal grains are refined; the residue stress is reduced; the forming elements with the good mechanical property are obtained.

The invention provides a river ecological flow determining method with the benthos diversity as a target. By means of the method, the research methods of ecological water requirements are enriched, and meanwhile, the ecological flow determining method with benthos as indicator organisms is provided. The method comprises the steps that river segment selection is researched; the benthos in a river segment are researched and ecological environment elements are inspected on site; the type of a benthos habitat and the characteristic parameter threshold value of the benthos habitat are determined; the optimal type of the benthos habitat which maintain the benthos diverse is determined; the fluvial geomorphology measurement of the river segment is researched; a two-dimensional hydrodynamics modelis constructed; the benthos habitat of the river segment is simulated in different flows; the optimal flow for maintaining the benthos diverse is determined. The method has the advantages that the ecological flow which enables the benthos diversity to be highest can be very accurately obtained, and the problem that by means of a general ecological flow determining method, the result cannot reflect the actual demands of aquatic organisms is solved.

The invention relates to a fuel oil suspension subsidence detection system, including a computer, a numerical control coordinate frame and a camera, wherein, the computer connects with the numerical control coordinate frame through a central controller connection, the camera is arranged on a portable plate on the cross arm of the numerical control coordinate frame, the camera connects with the computer, and a settling column stands in front of the camera; when examining, the camera on the numerical control coordinate frame is controlled by the direction key of the computer to do two-dimensional motion so as to track the movement of the suspension in the subsidence column, which can fast and accurately examine the settling velocity and the settling regularity of the suspension in each jet fuel oil, enhance the automaticity of the research work about the suspension of the jet fuel oil, enrich the research tool and method, provide essential technology for completely solving the problem of the suspension in the jet fuel oil, and make the contribution for the fuel oil examination enterprise of our country.

The invention belongs to the field of molecular biological technology and molecular marker breeding and especially relates to a multi-gene polymerization effect analytic breeding method for increasinglambing number of goats. In the method, GnRHR, FSHR and BMP6 genes are used as the candidate genes that influence the character of the lambing number of goats. In each of the three genes, there is apolymorphic site, so that by performing GnRHR-FSHR-BMP6 multi-gene polymerization effect model analysis to the molecular markers, it is found that AATTCC is an optimum combined genotype. By means of the optimization of combined genotype, the genetic progress on the character of lambing number of Chongqing Black goats is accelerated, and early-stage selection efficiency of the Chongqing Black goatsis increased, so that the method has important significance to cultivation of new species (lines) of high-quality high-reproductive goats.

The invention provides a method for monitoring the influence of reciprocating equipment cylinder sleeve friction force on shafting torsional vibration. The method comprises the steps of 1, calculatinginherent frequency of shafting torsional vibration; 2, testing the inherent frequency of shafting torsional vibration under different lubrication states through an LMS acquisition instrument; 3, comparing the inherent frequency calculated in the step 1 with the inherent frequency tested in the step 2, and if the inherent frequency is not changed, calculating friction force as exciting force of shafting vibration; if the friction force changes, the friction force is converted into a damping item of the system for calculation; and 4, comparing the calculation result in the step 3 with a shafting torsional vibration result under the condition of not considering the action of the friction force, and analyzing the influence of the friction force on the shafting torsional vibration amplitude and frequency. According to the method, the excitation effect of friction force on shafting torsional vibration and the influence on shafting inherent characteristics are comprehensively considered, a comprehensive and scientific research method is provided, and a certain support is provided for further exploration and utilization of torsional vibration signals to achieve online monitoring of reciprocating equipment cylinder scoring faults.

The embodiment of the invention provides a liquid material evaporation numerical simulation method in a spray drying tower and a storage medium, and belongs to the field of liquid material evaporation. Through the above technical scheme, the full-size three-dimensional geometric model of the spray drying tower is established according to the geometric parameters of the spray drying tower and meshgeneration is carried out; solving is carried out, an output variable result is obtained for analyzing the evaporation process of the liquid material; compared with the prior art that measurement cannot be directly carried out in a drying tower, a data result obtained by adopting experience of a designer and a method of carrying out small-scale trial amplification on an experimental result of a small device has deviation from an actual result, through establishing and solving a full-size three-dimensional geometric model of the spray drying tower, the obtained result is more precise.

The invention discloses a hemangioma pathotype subgroup J avian leukosis virus gene and the construction of infectious clone thereof. A full-length genome sequence of a subgroup J avian leukosis virus of the invention is shown as SEQ ID NO:1. Then, the hemangioma pathotype subgroup J avian leukosis virus gene shown as SEQ ID NO:1 is subjected to amplification by adopting a specific primer; and pBlueskript SK (I) is used as a vector and chick embryo fibroblast is used as a host cell to construct the infectious clone of the hemangioma pathotype subgroup J avian leukosis virus gene so as to lay the foundation for subsequent research on relation among pathogenic mechanism, a gene structure and functions, virus reproduction, genetic variation rules and the like of the hemangioma pathotype subgroup J avian leukosis virus ALV-J.

The invention discloses a building method of a mouse model for expressing human NTCP (Na+/taurocholate Cotransporting Polypeptide) as a hepatitis b virus receptor. A human NTCP gene carried micro ring carrier is built and introduced into a mouse body in a hydrodynamic transfection type transgenic mode so as to enable human NTCP genes to be expressed in a mouse liver. According to the building method of the mouse model for expressing the human NTCP as the hepatitis b virus receptor, the defect that the existing experimental mouse cannot be naturally infected with an HBV (Hepatitis B Virus) is overcome due to the mouse model, the mouse model comprising the HNV functional receptor is built, the HBV in-vivo infection can be supported, the normal immune function is achieved, and accordingly the clinical HBV occurrence, development and chronic process can be really and fully reflected and the ideal animal model is provided for the further research on a pathogenic mechanism of the HBV, the pathological changes of the engine body after the HBV infection and an action mechanism of an engine body immune system in the process of antiviral infection and immune pathogenesis.

The invention discloses a vegetation parameter fitting method based on middle-high resolution remote sensing. Due to the facts that used coarse resolution remote sensing data can be acquired easily, time resolution is very high, free shared data and products can be obtained, and the growth and development law difference of different vegetation types and the growth and development law difference in the vegetation of the same type are also used, when a study urges for the vegetation parameter in certain time, however, only the remote sensing data in another time can be acquired, through the method, the vegetation remote sensing parameter in the needed time can be simulated, and remote sensing study methods are enriched. For the reason that the middle-high resolution remote sensing is used for regional scale study, through the method, remote sensing data acquired at the study area in different time can be unified to the time which is needed by the study, and therefore the remote sensing data covering the entire study area in the same time can be acquired. Cloudless middle-high resolution remote sensing data in the needed time can reappear, and thus necessary data support can be provided for vegetation remote sensing correlation study work such as ecological remote sensing, environmental remote sensing and agricultural remote sensing.

The invention discloses a pharmacoeconomics evaluation method based on an MAUT method. The method comprises the steps: S1, constructing an MAUT scheme evaluation model, and carrying out the data collection and arrangement of the MAUT scheme evaluation model so as to obtain final effective values, final safety values and final economic values of different types of drugs; and S2, comprehensively evaluating the final effective values, the final safe values and the final economic values of the drugs through the MAUT scheme evaluation model to obtain the total utility value of medication schemes of different types of drugs. According to the pharmacoeconomics evaluation method based on an MAUT method disclosed by the invention, the evaluation model is constructed by using MAUT, the advantages and disadvantages of various medication schemes for a certain type of disease are comprehensively evaluated and compared from the dimensions of effectiveness, safety, economy and the like, the total utility value of each scheme is calculated through a quantitative method, the final result of each evaluation scheme is displayed, the optimal treatment scheme is determined, and the effect is obvious.

The invention discloses a decimal full adder of quantum cellular automata. On the premise of not changing the logic function of the circuit, the QCA is optimized by combining the XOR logic operator with stronger expressive ability and the advanced carry structure of the full adder. The number of logic nodes and logic depth required by the decimal full adder, so as to optimize the area and delay of one-bit and multi-bit QCA decimal full adder circuits. Compared with the traditional full adder with the best performance, the quantum cellular automaton decimal full adder proposed by the present invention has excellent performance, and the delay and area are significantly improved, especially in the quantum cellular automaton 8-bit decimal full adder The optimization effect is more obvious, and the delay and area are increased by 27.6% and 53.4% ​​respectively. The invention greatly reduces the circuit cost, and at the same time enriches the circuit research method in circuit design. The invention provides a new research idea for arithmetic circuit design based on majority logic and XOR logic, and has strong practical significance for the development of circuit design.