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    • 26. 发明申请
    • METHOD FOR RECONSTRUCTING THE INTERNAL STRUCTURE OF A SAMPLE BODY BY MEANS OF REFLECTION AND SCATTERING SIGNALS
    • 通过反射和散射信号重建样品体内部结构的方法
    • US20130030757A1
    • 2013-01-31
    • US13639767
    • 2011-04-07
    • Rainer StotzkaNicole Ruiter
    • Rainer StotzkaNicole Ruiter
    • G01B15/00G06F15/00
    • G01S15/8977G06F17/11G06T11/006G06T2211/424G06T2211/436
    • One aspect of the invention relates to a method for reconstructing the spatial distribution of a reflection coefficient for waves in a sample body, comprising the following steps: parameterizing the sample body by means of N volume elements; determining M different measurement configurations of an emitting device and an associated receiving device; defining the number T of measurement points; setting up M path matrices G[i], wherein the possible paths of reflected or scattered waves are encoded in the i-th path matrix; registering M series of measurements, wherein an excitation signal a[i] is fed to the emitting device in the i-th series of measurements, and the associated receiving device (5) registers a series of measurements x[i]; calculating a predictive differential vector Δx=x−G·s[n], which contains the difference between the elements of the M registered series of measurements x[i]t and the predictable series of measurements G[i]tj·s[n]j; minimizing a norm of the predictive differential vector ∥Δx∥; and providing the reflection coefficients s[n]. The invention also relates to an apparatus for carrying out the method.
    • 本发明的一个方面涉及一种用于重建样本体中的波的反射系数的空间分布的方法,包括以下步骤:通过N个体积元素参数化样本体; 确定发射装置和相关联的接收装置的M个不同的测量配置; 定义测量点数T; 设置M路径矩阵G [i],其中反射或散射波的可能路径被编码在第i路径矩阵中; 注册M系列测量,其中激励信号a [i]在第i系列测量中被馈送到发射设备,并且相关联的接收设备(5)记录一系列测量值x [i]; 计算预测差分矢量&Dgr; x = x-G·s [n],其包含M个记录的测量系列x [i] t的元素与可预测的测量系列G [i] tj·s之间的差 [n] j 最小化预测差分矢量∥&Dgr; x |的范数; 并提供反射系数s [n]。 本发明还涉及一种用于执行该方法的装置。
    • 28. 发明申请
    • METHOD FOR PRODUCING A MOULDED BODY
    • US20210179424A1
    • 2021-06-17
    • US17250087
    • 2019-05-24
    • Karlsruher Institut fur Technologie
    • Norbert SchneiderChristian KoosMatthias WorgullPhilipp-Immanuel Dietrich
    • B81C99/00B29C59/02B29C59/00
    • The present invention relates to a method for producing a molded body (10), comprising the following steps: a) providing a molding tool (40) which has at least one receptacle (12) in which at least one material (30) which comprises at least one shape-memory material (31) is introduced, wherein the shape-memory material (31) is present in a first state (111), wherein the material (30) at least partially fills the receptacle (12) of the molding tool (40) in such a manner that said material adjoins at least one surface of the receptacle (12); b) creating a molded body (10) in the receptacle (12) of the molding tool (40) from the material (30), wherein the shape-memory material (31) is present in a second state (112), wherein a form (11) is embossed into the molded body (10) during the second state (112); c) transferring the shape-memory material (31) to a third state (113), wherein the molded body (10) can be deformed during the third state (113) in such a manner that the molded body (10) is demolded from the receptacle (12) of the molding tool (40); and d) at least partially restoring the form (11) of the molded body (10) by transferring the shape-memory material (31) to a fourth state (114), wherein the molded body (10) at least partially resumes the form (11) according to step b) during the fourth state (114).