91results about How to "Short modeling time" patented technology

The invention provides a method for constructing an equivalent circuit model of a lithium ion battery. The method includes the steps that an initial equivalent circuit model of the lithium ion battery is selected and includes multiple unknown parameters; the lithium ion battery is selected and tested so that multiple sets of test data can be obtained; Ohm internal resistance of the initial equivalent circuit model and equivalent capacitance of open-circuit voltage are obtained according to each set of test data; a simulation model of the initial equivalent circuit model is constructed, each set of test data is input into the simulation model, and initial values of the unknown parameters are set; estimation is performed on the unknown parameters through the simulation model and an optimization toolbox, and the estimation is stopped when an error between output voltage of the simulation model and output voltage in each set of test data meets a preset condition so that final values of the unknown parameters can be obtained. The embodiment of the method has the advantages that the equivalent circuit model is rapid to construct, and model constructing complexity is low.

The invention discloses a Microstation v8i-based city rapid-modeling method, which comprises the following steps of: performing an aerial survey on a tested area according to a conventional aerial photogrammetric survey method by adopting an aerial photogrammetric survey system; and 2, performing analysis processing on aerial survey data in a Microstation v8i software environment by using a processor, namely, establishing a three-dimensional aerial photogrammetric survey model, performing land feature classification and marking, correspondingly establishing a land feature type layer-color mapping table, performing vector data acquisition, establishing models of houses, scattered trees and land features of other types respectively, processing all the land features in the tested area respectively, and obtaining three-dimensional geometric models of all the land features in the tested area.

The invention discloses an impact condition-considered simplified model modeling method suitable for early-stage design of automobiles. The method comprises the following steps of: carrying out overall structure decomposition on a modeling target automobile; determining a simplified modeling method corresponding to each decomposed structure on the basis of a modeling method provided by ADAMS software; after the simplified modeling method corresponding to each decomposed structure is determined, setting simplified modeling parameters to complete a simplified model construction process of each structure; integrating the constructed simplified models into a whole automobile model; and carrying out impact simulation test on the integrated whole automobile model and importing an adjustment coefficient K to adjust the impact simulation result. According to the method disclosed by the invention, the optimal design of impact simulation in the early-stage design of the automobiles is considered, so that the simulation results of the constructed models are more correct and reasonable, the method is concise, the efficiency is high, and the simulation time is short; and the method is suitable for the impact resistance optimal design in the early stage of structural design of the automobiles.

The invention discloses a modeling method of an Sjogren syndrome mouse model. The modeling method comprises the following steps: killing mice, taking out bilateral salivary glands and peeling off capsules and connective tissues; washing with PBS (Poly Butylenes Succinate); adding the PBS according to the amount of adding 0.5ml of the PBS into each salivary gland; shearing the salivary glands into pieces, and uniformly homogenizing and centrifuging in an ice bath; then taking supernatant and quantifying salivary gland antigens by adopting a BCA (Bicinchoninic Acid) protein quantifying method; adjusting the concentration of the salivary gland antigens to be 4mg/ml by utilizing the PBS; adding equal quantity of an FCA (Freund Complete Adjuvant) or an FIA (Freund Incomplete Adjuvant) and diluting the concentration to be 2mg/ml; repeatedly blowing and beating until two liquid phases are dissolved mutually to form an ivory color; randomly grouping C57BL/6 mice and shaving off furs on the backs of the mice; carrying out intradermal multi-site injection of 2mg/ml mouse salivary gland antigens prepared by the FCA on the back and tails of the mice on the current day and the 7th day, wherein the injection amount is 0.1ml per mouse; injecting equal quantity of the salivary gland antigens prepared by the FIA on the 14th day through the same method; after modeling for about 6 weeks, detecting indexes and screening the successfully modeled mice. The modeling method disclosed by the invention is high in modeling efficiency and short in modeling time.

The invention discloses a method for predicting the dissolved oxygen concentration of sewage based on fuzzy clustering supporting a vector regression algorithm, which is used for predicting the content of dissolved oxygen DO in the sewage. Aiming at the problem that the dissolved oxygen is difficult to measure in real time in a sewage treatment process, firstly, a whole sample is divided into a plurality of sub-samples through fuzzy clustering, then, a support vector regression model is established on each sub-sample, and then integration is carried out, and on-line prediction on the content of the dissolved oxygen DO in the sewage is carried out. The method has higher prediction precision, and is superior to other time series prediction methods in the aspect of comprehensive performance,and provides an effective solution for quickly and accurately predicting water quality.

The invention provides a constructing method and application for an osteoportic fracture disease animal model. According to the provided technical scheme, based on a constructed osteoporosis animal model, thighbone small lateral incision fracture molding of a model animal is conducted, then a femur fractured end bilateral inverse intramedullary nail inserting internal fixation is conducted, and the osteoportic fracture disease animal model is constructed. The method avoids influences of uncontrollable factors on an experimental result, ensures the uniformity of modeling, shortens the molding time, and accelerates the experiment process. The method is applied to the preparation of the osteoportic fracture disease animal model and is beneficial for meeting related requirements of the osteoportic fracture disease animal model, and the osteoportic fracture disease animal model is taken as a study object to study the pathogenesis, prevention and treatment of basic and clinical osteoportic fractures.

The invention relates to the field of life medicine, and particularly relates to a construction method of a Kras mutation related oral mucosa malignant animal model. The construction method of the mouse oral mucosa malignant animal model comprises the steps that the model is constructed by adopting inducible Kras genetic engineering mice in combination with 4-nitroquinoline 1-oxide (4NQO) chemicalinduction, and on the premise of achieving the cancer formation target, the modeling time is shortened as much as possible. A traditional 4NQO chemical induction oral squamous carcinoma animal modelhas the defect of being long in consumed time (larger than or equal to 20 weeks). According to the method, oral squamous carcinoma is successfully induced by combining Kras mutation with 4NQO, only 12weeks are needed from induction to cancer formation, and compared with a traditional animal model, the time is saved by 2 months for the whole experiment.

The invention relates to a method for establishing a model of aflatoxin inducing macaque liver fibrosis. The method comprises the following steps: with macaque as a model animal, during the model making, adding 0.5mg/kg aflatoxin to the drinking water of macaque for sucking, twice every month at an interval of 2 weeks for 8 successive months; feeding the macaque with macaque commercial maintenance-period feed containing more than 19% of protein and more than 4% of crude fat; performing pathological analysis every 2 months; and 8 months later, performing pathological detection to show obvious liver fibrosis symptoms. The method provided by the invention is safe and reliable, shortens the model making time of an animal model, and is of great significance to screening and predicting effective drugs for controlling liver fibrosis and even liver cancer as an experimental foundation.

The invention belongs to the technical field of biology, and particularly relates to a tumor tissue transport fluid and an application thereof. The tumor tissue transport fluid provided by the invention comprises a plurality of antibiotics and nutritional factors, is definite in components, does not contain serum, can significantly improve the defect of nutrient depletion of previous tissue transport fluids, and avoids activity reduction of tumor samples in storage or transportation to a great extent. The transport liquid provided by the invention is simple to prepare, can effectively improvethe activity of a fresh tumor sample, can well protect the cellular morphology of the tumor sample, can significantly increase the modeling rate of PDX, shortens the modeling time, has great help forestablishment of a PDX tumor model and has a high commercial application value.

The invention discloses a construction method of an Adriamycin nephropathy animal model, for solving the technical problem that an existing Adriamycin nephropathy animal model is complex in operation and low in success rate. The construction comprises the following steps: selecting rats according with experimental standards as a molding group; injecting Adriamycin to the rats of the molding group by caudal vein for the first time according to a using amount of 4mg/kg; one week later, injecting Adriamycin for the second time according to the using amount of 3.5mg/kg; from the first injection of Adriamycin to the rats in the molding group, feeding the rats with high protein feed for two weeks, and then feeding with a normal feed for 6 days; and from the first injection of the Adriamycin to the 20th day, reckoning the rats with the total amount of 24-hour urine protein being larger than 30mg into the Adriamycin nephropathy animal model. The construction method disclosed by the invention is simple, feasible, high in success rate, good in consistency and stability and capable of effectively reducing the animal death rate and is a relatively ideal animal model for further researching sertoli cytopathy.

The invention discloses a construction method and device for a depression-induced breast cancer animal model and application. The construction method comprises the following steps that a mouse is placed in a constraining device not to act, the mouse is constrained for 4 hours every day, light-dark circulation is maintained for 12 hours for 3 weeks or more, and constructing is carried out to obtain the spontaneous breast cancer transgenic mouse depressive disorder animal model with depressive disorder related phenotypes. The invention further discloses a constraint device of the animal model. The animal model is used for simulating the human breast cancer and depression process and screening diagnosis and treatment drugs or therapies. The animal model has the advantages of good repeatability, small individual difference, short modeling time, low animal death rate and the like, and can be widely applied to simulation of human depression-induced breast cancer and related disease pathology and screening and curative effect verification of diagnosis and treatment substances.

The invention belongs to the technical field of experimental animal models, and provides a method for constructing a rat model with pine cone injury, which aims to solve the problems of complex operation, low success rate, long modeling time, low repeatability and the like of the conventional rat model with pine cone injury. The method comprises the following steps of: performing intraperitoneal injection of PCPA of 450 mg/kg on a rat for 2 days continuously, once every day; or performing electrical stimulation on the rat by using a shuttle box, wherein the electrical stimulation voltage is 30V, the current is 0.8A, the stimulation time is 30 seconds, the interval is 30 seconds, the cycle is performed for 60 times, and the operation is performed for 5 days continuously; or performing an intraperitoneal injection PCPA method on the rat on the fourth day by using an electrical stimulation method. Three modeling methods, namely pathological histomorphology, serum detection of the contentof melatonin which is a main synthetic secretory hormone of a pine cone, and animal general situation and behavioral auxiliary method objective evaluation, cause injury of the pine cone of the rat, and provide a good model basis for researching and screening medicaments and mechanisms with protective and therapeutic effects on the pine cone injury; and the method is simple and convenient, the modeling time is short, the repeatability is high, and the index evaluation is simple and reliable.

The invention belongs to the field of animal model construction, and specifically discloses a method for establishing an animal model for repairing muscle tissue damage, comprising the following steps: first anesthetizing the model animal, fixing it in a prone position, and disinfecting the hind limbs of the anesthetized experimental rat; Then, the skin and subcutaneous tissue of the sterilized hindlimb were incised sequentially through surgery to expose the gastrocnemius muscle and separate the lower part of the gastrocnemius muscle; finally, an electrode was used to clamp the gastrocnemius muscle on the exposed side, and a pulsed electric field was applied to the gastrocnemius muscle to establish an animal model of muscle tissue damage repair. . The present invention uses irreversible electroporation to establish an animal model of muscle tissue damage repair, which can provide a technical method that is simple, easy to implement, low in cost, short in modeling time, stable in model, accurate in damage, and accurate in scope and controllable, and can meet the requirements of destroying muscle cells at the same time. Requirement to preserve extracellular matrix structure.