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149results about How to "Simplified representation" patented technology

Soft tissue deformation simulation method

The invention relates to a soft tissue deformation simulation method based on smooth particle hydrodynamics, belonging to the technical field of graphic processing. In the method, a smooth particle hydrodynamics method is selected, and a viscoelastic mechanics model is used for reflecting the biomechanical characteristics of soft tissue. The method comprises the following steps of: constructing a series of equations related to soft tissue deformation simulation according to the viscoelastic model; selecting a proper support domain search strategy and a smooth kernel function, approximately calculating each related item of the equation by adopting the particle approximation method, and calculating the variation values of the density, the position, the velocity and the like of each particle along with time through the display integration method; and dynamically outputting the status of each time step size of the particle model to a screen, rendering texture irradiation, and displaying the real-time deformation process of soft tissues and organs under stressing conditions. The method does not need troublesome grid computing, thereby increasing the accuracy and the real-time performance of soft tissue deformation simulation.
Owner:NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER

Projection pursuit-based method for evaluating flooding risk of drainage pipe network

The invention discloses a projection pursuit-based method for evaluating flooding risk of a drainage pipe network, which relates to the technical field of system comprehensive evaluation. The method integrates multi-aspect flooding risk effect factors from a drainage pipe network model, a geographic information system and a database system and uses a projection pursuit evaluation method for evaluating the flooding risk of the drainage pipe network. In the method, linear projection is conducted on each evaluation indicator sample; an optimal projection direction vector is searched in accordancewith a certain principle and the optimal projection direction vector reflects the important level of each evaluation indicator, namely objective weight, and based on the objective weight, a comprehensive evaluation number is established for conducting evaluation grading on the flooding risk of the drainage pipe network, thus providing technical support for emergency rescue in flood season. The method avoids one-sidedness of human analysis in evaluation process, has more scientific evaluation result, and can vividly and directly represent disaster risk degree and distribution due to an obtained flooding disaster risk map, thus providing excellent decision platform for rescue dispose.
Owner:BEIJING UNIV OF TECH

System and method to determine a simplified representation of a model

A system, method, and computer program for determining a simplified representation of an assembly model comprising the steps of saving a plurality of display states and configuration settings of an assembly model in a design representation; translating said design representation into a simplified representation by use of a visibility solution; and storing said simplified representation and said design representation in an assembly document and appropriate means and computer-readable instructions.
Owner:SIEMENS PROD LIFECYCLE MANAGEMENT SOFTWARE INC

Cell activity detection method and device based on impedance spectroscopy

InactiveCN106047678AActivity monitoringAccurate Cell Viability InformationBioreactor/fermenter combinationsBiological substance pretreatmentsMicrocontrollerCapacitance
The invention discloses an adherent-cultured cell activity detection method and device based on impedance spectroscopy. An interdigital electrode, which is parallel with the bottom surface of a culture dish, is arranged at the bottom of the interior of the culture dish; two poles of the interdigital electrode are connected to a controller by virtue of lead wires; a DDS (direct digital synthesizer) frequency generator, which is controlled by a single chip microcomputer in the controller, is promoted to transmit sine waves which are in n pieces of frequencies from high frequency to low frequency; a current excitation signal, after being transformed by a voltage-controlled current source, is outputted to the interdigital electrode; n pieces of response voltages of the interdigital electrode, by virtue of a differential amplifier, are inputted to a single chip microcomputer after undergoing analog-to-digital conversion; the single chip microcomputer is used for calculating a complex impedance value under different frequencies, and is used for calculating a dual-layer capacitance value in accordance with an equivalent circuit model and the complex impedance value; the capacitance value of a dual-layer capacitor in an equivalent circuit serves an index for assessing cell activity, so that more accurate cell activity information can be obtained; and the method and the device can be used for monitoring the cell activity in real time, cannot damage the steady state of cells and can achieve quantitative measurement on the cell activity.
Owner:JIANGSU UNIV

Generation method and system for dynamic diagnosis report

The invention relates to a generation method and system for a dynamic diagnosis report. The generation method comprises the steps of obtaining check data, wherein the check data comprises personal information and condition checking information of a patient; generating a main body of the dynamic diagnosis report according to the obtained check data; performing labeling on a medical striograph in the obtained condition checking information; enabling a labeled picture format file to be associated to the main body of the dynamic diagnosis report; and receiving signature information, and performing synthesis on the signature information and the associated main body of the dynamic diagnosis report to obtain the dynamic diagnosis report. The generation system comprises a check data acquisition module, a report main body generation module, a medical striograph labeling module, an image-text associating module and a dynamic diagnosis report generation module. According to the generation method and system disclosed by the invention, the electronic type dynamic diagnosis report is adopted to replace a conventional paper report, so that the electronic type dynamic diagnosis report can be stored and read conveniently; and by enabling the medical image to be associated with examination findings or diagnosis opinions, so that the condition information of the patient can be presented more intuitionally.
Owner:万里云医疗信息科技(北京)有限公司

Forming limit strain analysis

In the computed-based analysis of forming processes, for example, manufacturing sheet metal parts for the automobile industry, the material loading is represented by major and minor strains εI, εII and is visualised with respect to a forming limit strain curve. In the method according to the invention, one proceeds from a target state (4n) of the material, as has been determined in the computed simulation of the forming process. A proportional trajectory of a loading and thus of the state variables of the material, in particular of the stresses (σ), is determined, which leads to the same target state. The associated proportional strain trajectory is evaluated for this proportional loading trajectory. The strain state (4p) which results from this strain trajectory, is called the equivalent strain state (4p) and may be used in the forming limit strain diagram for assessing the target state. Thereby, the equivalent strain state is set in relation to the forming limit strain curve (1) for the proportional trajectories.
Owner:NETABTAL MASCHEN
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