A three-dimensional direct problem of ultrasonic nondestructive testing of a railroad rail
treated as a linear elastic medium is solved by applying a grid-characteristic method on …

Nowadays, traditional hydrocarbon reserves are depleted. The search for and production of
oil and gas in hard-to-reach fields require the development of appropriate computing …

Our work is devoted to the numerical solution of direct problems of non-destructive testing of
rails in a full-wave three-dimensional formulation. The complexity of this class of problems is …

New energy is the focus of attention all over the world, and research into new energy can
inject new vitality into the industrial system. Hydrogen fuel cells are not only environmentally …

在许多应用中, 频率域声波方程的数值求解发挥着重要作用, 如医学成像和地震勘探.
传统的频率域声波方程求解方法, 如有限差分法, 有限元法等, 通常具有参数依赖性 …

We analyze an ideal transmission line, which is defined by the telegraph equation with
variable coefficients, from the perspectives of numerical analysis and control theory in this …

В работе рассматривается пример решения трехмерной прямой задачи
ультразвукового контроля в рельсовом полотне, представляемого в виде линейно …

In this note we study an ideal transmission line, which is described by the telegraph's
equation with variable coefficients, from the viewpoints of numerical analysis and control …