45results about How to "Short modeling cycle" patented technology

The invention belongs to a power device system in the technical field of aviation, and relates to a method for correcting the installation thrust of an engine model. The method comprises the following steps: (1.1) acquiring an engine bench thrust Fi data table; (1.2) constructing an engine bench thrust model Ft by adopting a three-dimensional interpolation algorithm; (1.3) carrying out an air inlet blowing test; (1.4) modeling by using an interpolation method; (1.5) establishing an air inlet loss correction model K1; (1.6) building a power extraction loss coefficient database; (1.7) establishing a power extraction loss correction model K2; (1.8) building a spray pipe afterbody resistance loss coefficient database; (1.9) establishing a spray pipe afterbody resistance loss correction model K3; (1.10) finishing modelling of an engine installation thrust model. The method has the advantages of high calculation accuracy, simulation instantaneity, easiness in implementation, short modeling period and high engineering applicability.

The invention discloses an application and construction method of a high-selenium induced insulin resistance animal model. The application and construction method comprises the following steps of: feeding 100mug / kg-200ug / kg of selenium to the stomach of an SD (Sprague Dawley) rat every day; and six weeks later, obtaining the insulin resistance animal model. According to the statistic analysis of glucose tolerance and insulin tolerance, insulin signal transduction and gluconeogenesis key enzyme test, the construction of the insulin resistance animal model by utilizing sodium selenite is feasible; and the insulin resistance animal model can be used as a high-selenium induced insulin resistance animal model and a pathogenesis and drug action mechanism research model of diabetes mellitus II. The insulin resistance rat model constructed by the application and the construction method disclosed by the invention has the advantages of simpleness in modeling method, high model establishing success rate, low cost, short period, good reproducibility and the like.

The invention provides a method for evaluating the safety of meat products by using zebrafish. Firstly, the meat product is treated with bionic digestion and extraction to obtain the meat sample extract, and then the processing time of the meat sample extract is determined to be 24 hours. The treatment concentration was 1.4-5.6 mg / mL to construct a zebrafish model and evaluate the safety of meat products. The zebrafish model constructed by the present invention and the method for evaluating the safety of meat products have high detection accuracy, the detection method is scientific and reasonable, and the short modeling cycle greatly reduces the detection cost, which provides a basis for popularizing and popularizing the detection method to the general public, enterprises and governments. Realistic feasibility.

The invention discloses a calculation method for obtaining an antenna arm vibration abatement response. According to the antenna arm vibration abatement scheme of a piezoelectric material, the stress of the piezoelectric material is equivalent to an internal moment, and the strain of the piezoelectric material is equivalent to a displacement difference to obtain an analytic coupling calculation model of satellite dynamics, vibration abatement and gesture control. Through the resolving of the model, the antenna vibration frequency response and a time response after vibration abatement can be obtained, the layout analysis of the piezoelectric material on the antenna arm is realized, and the active vibration abatement affect analysis of the antenna arm is realized. An obtained calculation model is a coupling system model which contains the satellite dynamics, the vibration abatement and the gesture control on a top layer, and the cross coupling of each analysis link is fully considered to finish response calculation and also realize the analysis of a vibration transfer mechanism. The stress of the piezoelectric material is equivalent to the internal moment, the strain of the piezoelectric material is equivalent to the displacement difference, and therefore, the method has the advantages of being simple, practical, short in modeling period and convenient in engineering application.

The invention discloses a method for preparation of a liver fibrosis animal model with juvenile zebrafish. The method adopts juvenile zebrafish as the model animal, and selects diethylnitrosamine andethanol as the modeling drug. The zebrafish genome adopted by the method provided by the invention is similar to the human genome, and presents physiological characteristics very similar to human, andcan be well applied to study of various human diseases. Also the method has the advantages of short modeling cycle, low cost and simple operation. The obtained model can be applied to high throughputscreening of various drugs.

The invention discloses a model for inducing drug resistance in a pseudomonas aeruginosa animal as well as a construction method and an application of the model. With the application of the model constructed by the method, better simulation of a phenomenon of PA infection in respiratory tract of a patient who accepts wide-spectrum antibiotics clinically for a long time can be achieved, and development and change rule of the drug resistance of pseudomonas aeruginosa in a mouse body can be observed, so as to simulate the change of the bacterium (the pseudomonas aeruginosa) in the body and to facilitate study on antibacterial drug-resistance medicine treatment; and meanwhile, the animal model, as a lung index evaluating animal model, is more intuitive, accurate in evaluating result, short in construction cycle and high in efficiency.