During the rebuilding of a gas reservoir, repeated “strong injection and mining” processes change seepage capacities water. Hence, accurately determining laws water in storage reservoir is crucial. In this study, standard relative permeability test was conducted with one-dimensional core. Additionally, mining simulation experiment two-dimensional plate. The results show that curve obtained by c...

Over the last century, several morphological models of forebrain organization have been proposed that hypothesize alternative topological solutions for the relationships of the histogenic primordia. Central to all of these models are their definitions of the longitudinal axis and the longitudinal organization of the neural plate and neural tube. To understand the longitudinal organization of th...

Combined with the scanning of the probe array, this paper proposes an imaging method of the platelike structural defects based on matching pursuit and the theory of time reversal. First, Match pursuit algorithm is used to the original signal processing of guided wave detection to improve signal quality, and provides a good foundation for signal reconstruction. Then it does algebraic difference ...

Background: Spermatogonial stem cells (SSCs) are the foundation of spermatogenesis. New procedure such as sound wave especially low intensity ultrasound (LIUS) can be effective on increasing the number of cells. In this study we investigated the effect of LIUS stimulation on mouse SSCs. Materials and Methods: Isolated SSCs from neonate mice cultured in DMEM culture medium with 10% fetal bovine ...

natural vibration analysis of plates represents an important issue in engineering applications. in this paper, a new and simplify method for vibration analysis of circular and rectangular plates is presented. the design of an effective robust controller, which consistently attenuates transverse vibration of the plate caused by an external disturbance force, is given. the dynamics of the plate i...

In this study, static and free vibration analyses of functionally graded (FG) nanocomposite plates, reinforced by wavy single-walled carbon nanotubes (SWCNTs) resting on a Pasternak elastic foundation, were investigated based on a mesh-free method and modified first-order shear deformation theory (FSDT). Three linear types of FG nanocomposite plate distributions and a uniform distribution of wa...

In shallow foundations, the third bearing capacity factor, N, has been found to show a decreasing tendency with increasing the foundation size. It is supported by experimental observations and related mainly to stress level dependent nature of the soil. On the other hand, the bearing capacity is often obtained theoretically without consideration of the foundation vertical displacements. In thi...