The transmission ratio along the radian direction normal to the joints was studied in the Universal Distinct Element Code (UDEC). The variation of the transmission ratio with the ratio of joint spacin
A new 3D layout algorithm to lay rectangular tiles on the 3D hull surface model is proposed to improve the algorithm performance in accelerating layout process and enhancing design accuracy. Three tim
Aiming at the specific cases existing in spatial angles calculation the paper investigates five types of them: lines in specific orientations, planes in specific orientations, two lines defining a pla
医学领域,医生需要比较不同的解剖影像信息和功能影像信息。将对应于同一物体的不同影像的像素点对应起来就是医学图像配准的主要任务。鉴于需要配准的图像的采集的方法和时间等方面不同,配准所采用的方法也不同。本文介绍了医学图像配准的新近方法。首先从图像配准的任务出发,介绍了配准过程的主要涉及的方面和配准流程。然后从配准时变换的参数角度考虑,将图像的配准分成两大类考虑:参数配准和非参数配准。每一类中给出基本的
历史上有许多意识超前的科技产品,但是在它们诞生的时候往往少人问津,也许正是因为它们的设计理念过于超前,以至于不能被当时的大多数人所接受,通常是以“英雄气短”为结局。
A procedure is developed to incorporate seismic environment and site condition into the framework of seismic vulnerability estimation of building to consider the effects of the severity and/or frequen
The spatial and temporal distributions of acoustic emission (AE) during the deformation of samples containing an inhomogeneous fault have been studied under biaxial compression. The results show that
The principles and applications of laser real-time holographic interferometry (LRTHI) and radar differential inter-ferometry (RDI) technologies are described in this paper, respectively. By using LRTH
Argo floats are free-moving floats that report vertical profiles of salinity, temperature and pressure at regular time intervals. These floats give good measurements of temperature and pressure, but s