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    • 116. 发明申请
    • METHOD AND APPARATUS FOR SENSING THE NATURE OF A GASEOUS COMPOSITION, PARTICULARLY VEHICULAR EMISSIONS
    • 用于感测天然气组合物,特别是机体排放物的性质的方法和装置
    • WO2010026579A3
    • 2010-04-29
    • PCT/IL2009000851
    • 2009-09-02
    • TECHNION RES & DEV FOUNDATIONTARTAKOVSKY LEONIDZVIRIN YORAMSHIR ILIABENGIO SHAI
    • TARTAKOVSKY LEONIDZVIRIN YORAMSHIR ILIABENGIO SHAI
    • G01N21/33G01N21/35
    • G01N21/3504G01N21/33G01N2021/3155G01N2021/3513G01N2021/3595
    • A method and apparatus are described for sensing the nature of a gaseous composition, particularly vehicular emissions over a roadway surface, by: disposing substantially parallel to the surface an optical transmission channel including an optical radiation source at one end and a retro-reflector at the opposite end, which retro-reflector is movable axially of the optical transmission channel substantially parallel to the surface towards and away from the optical radiation source; at a first location of the optical transmission channel, diverting a part of the optical radiation therein towards the surface, and detecting by a Light Detection and Ranging (LIDAR) system the particulate matter in the gaseous composition at the first location; at a second location of the optical transmission channel, diverting another part of the optical radiation in the optical transmission channel towards a retro-reflector fixed with respect to the surface, and detecting by a Fourier Transform Infrared Spectroscopy (FTIS) detector system the gaseous composition at the second location, while moving the movable retro-reflector with respect to the optical radiation source; and processing the outputs of the two detector systems to determine whether either output unduly exceeds a predetermined baseline value.
    • 描述了一种用于感测气体组合物的性质,特别是在道路表面上的车辆排放物的方法和装置,其通过以下步骤:基本上平行于表面设置包括一端的光辐射源的光传输通道和在一端的反射器 所述后向反射器可沿着所述光传输通道轴向移动,基本上平行于所述表面朝向和远离所述光辐射源; 在光传输通道的第一位置处,将其中的一部分光辐射转向其表面,并且通过光检测和测距(LIDAR)系统在第一位置处检测气态组成中的颗粒物质; 在光传输通道的第二位置处,将光传输通道中的光辐射的另一部分转向相对于表面固定的后向反射器,并且通过傅立叶变换红外光谱(FTIS)检测器系统检测气体组成 在第二位置处,相对于光辐射源移动可移动后向反射器; 以及处理两个检测器系统的输出以确定输出是否过度地超过预定的基准值。
    • 117. 发明申请
    • A METHOD FOR COSSERAT POINT ELEMENT (CPE) MODELING OF NONLINEAR ELASTIC MATERIALS
    • 非线性弹性材料的COSSERAT POINT ELEMENT(CPE)建模方法
    • WO2009116048A3
    • 2010-03-11
    • PCT/IL2009000315
    • 2009-03-19
    • TECHNION RES & DEV FOUNDATIONJABAREEN MAHMOODRUBIN MILES B
    • JABAREEN MAHMOODRUBIN MILES B
    • G06T17/00
    • G06F17/5018
    • A method for Cosserat Point Element (CPE) modeling of nonlinear elastic materials, utilizing a strain energy function characterizing the response of an eight node 3-D brick element to homogeneous and inhomogeneous deformations, which includes full coupling of bending and torsional modes of deformation. The method includes determining the constitutive coefficients which satisfy bending and torsional modes of deformation for three specific reference element geometries and combining these solutions to obtain constitutive equations for general reference element shapes which ensure that the strain energy remains a positive definite function for all inhomogeneous deformations of the CPE. The constitutive coefficients characterize a generalized CPE model that predicts the response of a 3-D brick element for finite elastic deformations which is free of hourglass instabilities and locking for nearly incompressible materials, thereby providing a robust modeling tool.
    • 一种用于非线性弹性材料的Cosserat点元素(CPE)建模的方法,利用表征八节点3-D砖元素的响应的应变能函数到均匀和不均匀的变形,其包括弯曲和扭转模态的完全耦合。 该方法包括确定满足三个特定参考元件几何形状的弯曲和扭转模态的本构系数,并组合这些解以获得一般参考元素形状的本构方程,以确保应变能保持所有非均匀变形的正定函数 CPE。 本构系数表征广义CPE模型,其预测3-D砖元件对于没有沙漏不稳定性的有限弹性变形和几乎不可压缩材料的锁定的响应,从而提供鲁棒的建模工具。