Diagnostic x - ray imaging equipment - characteristics of general purpose and mammographic anti - scatter grids X射线成像诊断设备.通用和乳腺x线照射反散射栅的特性
Diagnostic x - ray imaging equipment - characteristics of general purpose and mammographic anti - scatter grids iec 60627 : 2001 ; german version en 60627 : 2001 X射线成像诊断设备.通用和乳腺x射线照相的反散射栅的
The inverse acoustic scattering problem is a typical inverse problem . lt has bright future in application on radar and sonar , ect . in this paper , some problems of inverse obstacle scattering theory are investigated and some satisfactory conclusions are reached 声波反散射问题是个典型的数学物理反问题。由于声波反散射理论在雷达及声纳等领域的迫切需要,反散射理论及计算方法的研究有着广泛的应用前景。
In the last forty years the research for finding solitary wave solutions has been experienced a great growth and some sucessful methods including the inverse scattering theory , backland transform , hirota ' s bilinear methods and the homogeneous balance method have been presented in succession 近四十年来非线性演化方程孤波解的解法研究蓬勃发展,相继诞生了一些比较成功的求解方法,如反散射方法、 b ( ? ) ckland变换方法、 hirota方法以及齐次平衡方法等,这些方法多年来得到了广泛的发展和应用。