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35 results about "Cellular model" patented technology

Creating a cellular model has been a particularly challenging task of systems biology and mathematical biology. It involves developing efficient algorithms, data structures, visualization and communication tools to orchestrate the integration of large quantities of biological data with the goal of computer modeling.

Scheduling method for export container wharf pile-up space

InactiveCN103246941AGood optimal solutionAvoid simultaneous shipmentsForecastingLogisticsTheory modelCellular automation
The invention discloses a scheduling method for an export container wharf pile-up space. Two-stage modeling is performed from plan allocation to dynamic allocation. At a pre-allocation stage, a block plan is researched, and the follow-up dynamic allocation is guided by the block plan. In the block plan, a block allocation model based on the ecological neutral theory is proposed. According to the block allocation model, container blocks are abstracted as islands, and container groups are abstracted as species, and thus, a process of allocating the container groups to the container blocks is escaped into a process that ecological selection is performed on the islands by a plurality of species. Based on the block allocation model, by aiming at the characteristic of the block plan problem, the block allocation model is optimized by the scheduling method for the export container wharf pile-up space, and an improved ecological neutral theory model is proposed. At a dynamic allocation stage, yard bay allocation and container space allocation are combined, solving is optimized by bi-objective combination, and a combination cellular automaton model is proposed. According to the combination cellular automaton model, the yard bay allocation is abstracted as an external cellular model, and the container space allocation is abstracted as an internal cellular model.
Owner:WUHAN UNIV

Method for determining incident angle of particles in three-dimensional cellular model etching process

The invention relates to a method for determining an incident angle of particles in a three-dimensional cellular model etching process, which belongs to the field of the etching process in the micro-electron machining; and the method comprises the following steps of selecting two tangent planes which are vertical to an incident plane according to an incident direction of etching particles; respectively selecting surface cellular surrounding an incident point on the two tangent planes, adopting a position coordinate as a data sampling point, conducting fitting calculation by adopting a two-dimensional curve fitting method, and further solving a tangent vector of the incident point on the two coordinate axis directions; and finally conducting cross-product operation for the two tangent vectors to solve the normal surface vector of the incident point, and acquiring the incident angle of the etching particles. A three-dimensional curve fitting problem is converted to two two-dimensional curve fitting to be solved, so that the solution of multi-element equations can be reduced, the calculation complexity is reduced, and simultaneously the treatment of ill-conditioned system of equations in a polygonal curve fitting can be avoided; and the calculation accuracy and the operation speed can be greatly improved.
Owner:TSINGHUA UNIV

Method for generating progressive solid models based on cellular topology

Disclosed is a method for generating progressive solid models based on a cellular topology. A cellular model generating section 10, if a specific feature-based model is inputted, performs a mapping operation on the input feature-based model with reference to an internal feature library, thereby generating cellular topology models based on feature models. A progressive model initializing section 20 composes cells by use of volume attributes of the cells according to a relationship between the input feature-based model and the cells obtained from the cellular topology model to generate an initial cellular model SM0 which is simplified to generate a progressive solid model, and then searches n delta volumes DVi transiting the initial cellular topology model SM0 by composing and decomposing the cells so as to progressively complement the difference between the initial cellular topology model SM0 and the input feature-based model. A progressive model generating section 30 generates n progressive features PFi defined as a face subset of the delta volume and corresponding attributes from the n delta volumes DVi, and outputs n progressive cellular models PFi and the initial cellular model SM0 as the progressive solid model in the form of {SM0, {PF0, PF1, . . . , PFn−1}}.
Owner:ELECTRONICS & TELECOMM RES INST

SVM-GCA (Support Vector Machine-based Geographical Cellular Automata)-based urban spatial development simulation and prediction method

InactiveCN106251014ASolve the problem of excessive error in simulation prediction resultsAvoid askingForecastingCharacter and pattern recognitionState predictionCellular model
The invention belongs to the virtual geographic environment and simulation research field of geographic information systems, and relates to urban spatial development simulation and prediction technologies, in particular, an SVM-GCA (Support Vector Machine-based Geographical Cellular Automata)-based urban spatial development simulation and prediction method. According to the method of the invention, a support vector machine technology is adopted to design an urban cellular land use property change decision function; a support vector machine-based geographic cellular model is put forward based on the urban cellular land use property change decision function; and the urban spatial development simulation and prediction method is put forward based on the model. According to the method of the invention, the linear defect of an existing geographic cellular model is eliminated. The method has high simulation speed and high simulation precision. The support vector machine technology is adopted to build the urban cellular model, so that the typical nonlinear problem of geographic cellular state prediction is solved, and therefore, the problem of large error of a simulation prediction result caused by the linearity of a traditional geographic cellular model can be solved. Compared with an existing method, the method of the invention just requires a small number of samples, has higher computation efficiency and higher precision.
Owner:SOUTHWEST JIAOTONG UNIV

IGBT design method

The invention is applicable to the technical field of IGBT design, and provides an IGBT design method, which comprises the following steps: S1, constructing a cellular model of an IGBT; s2, adjustinga single IGBT parameter on the IGBT cellular model, wherein the IGBT parameter comprises a cellular structure parameter and a process parameter; and obtaining IGBT performance index values of the IGBTparameters under different values; s3, respectively carrying out curve fitting on the IGBT performance index data corresponding to each IGBT parameter to obtain a fitting curve of a plurality of groups of IGBT parameters and IGBT performance indexes and corresponding functions; and S4, importing the function of each group of IGBT parameters and the IGBT performance index into a target optimization function, taking each IGBT parameter as an input quantity and the target performance index of the IGBT as an output quantity in a cellular model of the IGBT, and searching an optimal IGBT parametercombination conforming to the target performance index of the IGBT. The required IGBT structure can be quickly positioned through simulation software, and the structure process parameters of the IGBTstructure can be determined, so that the design period and the design cost of the IGBT are greatly shortened and reduced.
Owner:安徽瑞迪微电子有限公司

A storage space scheduling method for export container terminals

InactiveCN103246941BGood optimal solutionAvoid simultaneous shipmentsForecastingLogisticsContainerizationCellular automation
The invention discloses a scheduling method for an export container wharf pile-up space. Two-stage modeling is performed from plan allocation to dynamic allocation. At a pre-allocation stage, a block plan is researched, and the follow-up dynamic allocation is guided by the block plan. In the block plan, a block allocation model based on the ecological neutral theory is proposed. According to the block allocation model, container blocks are abstracted as islands, and container groups are abstracted as species, and thus, a process of allocating the container groups to the container blocks is escaped into a process that ecological selection is performed on the islands by a plurality of species. Based on the block allocation model, by aiming at the characteristic of the block plan problem, the block allocation model is optimized by the scheduling method for the export container wharf pile-up space, and an improved ecological neutral theory model is proposed. At a dynamic allocation stage, yard bay allocation and container space allocation are combined, solving is optimized by bi-objective combination, and a combination cellular automaton model is proposed. According to the combination cellular automaton model, the yard bay allocation is abstracted as an external cellular model, and the container space allocation is abstracted as an internal cellular model.
Owner:WUHAN UNIV

Dipeptide mimetics of ngf and bdnf neurotrophins

The invention relates to compounds having either agonist or antagonist activities for the neurotrophins NGF and BDNF and represented by monomeric or dimeric substituted dipeptides that are analogs of the exposed portions of loop 1 or loop 4 regions of these neurotrophins near or at a beta-turn of the respective loop. N-acylated substituents of these dipeptides are biostereoisomers of the amino acid residues preceding these dipeptide sequences in the neurotrophin primary structure. The dimeric structure is produced advantageously by using hexamethylenediamine to which dipeptides are attached via their carboxyl groups. The claimed compounds displayed neuroprotective and differentiation-inducing activities in cellular models and enhanced the amount of phosphorylated tyrosine kinase A and the heat shock proteins Hsp32 and Hsp70 in the concentration range of 10−9 to 10−5 M. They also displayed neuroprotective, anti-parkinsonian, anti-stroke, anti-ischemic, anti-depressant and anti-amnestic activities in animal models and were active in experimental models of Alzheimer's disease. These in vivo effects of the claimed compounds are displayed in the dose range of 0.01 to 10 mg / kg when administered intraperitoneally.
Owner:UCHREZHDENIE ROSSIJSKOJ AKADI MEDITSINSKIKH NAUK NAUCHNO ISSLEDOVATELSKIJ INST FARMAKOLOGII IMENI V V ZAKUSOVA RAMN

Dipeptide mimetics of ngf and bdnf neurotrophins

The invention relates to compounds having either agonist or antagonist activities for the neurotrophins NGF and BDNF and represented by monomeric or dimeric substituted dipeptides that are analogs of the exposed portions of loop 1 or loop 4 regions of these neurotrophins near or at a beta-turn of the respective loop. N-acylated substituents of these dipeptides are biostereoisomers of the amino acid residues preceding these dipeptide sequences in the neurotrophin primary structure. The dimeric structure is produced advantageously by using hexamethylenediamine to which dipeptides are attached via their carboxyl groups. The claimed compounds displayed neuroprotective and differentiation-inducing activities in cellular models and enhanced the amount of phosphorylated tyrosine kinase A and the heat shock proteins Hsp32 and Hsp70 in the concentration range of 10−9 to 10−5 M. They also displayed neuroprotective, anti-parkinsonian, anti-stroke, anti-ischemic, anti-depressant and anti-amnestic activities in animal models and were active in experimental models of Alzheimer's disease. These in vivo effects of the claimed compounds are displayed in the dose range of 0.01 to 10 mg / kg when administered intraperitoneally.
Owner:UCHREZHDENIE ROSSIJSKOJ AKADI MEDITSINSKIKH NAUK NAUCHNO ISSLEDOVATELSKIJ INST FARMAKOLOGII IMENI V V ZAKUSOVA RAMN
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