نتایج جستجو برای: moving deformation operation

تعداد نتایج: 381403  

ژورنال: مهندسی دریا 2007
آقاکوچک, علی اکبر, گلبهار حقیقی, مهدی,

Oil and Gas offshore pipelines, often pass through large geographical areas, from the supply point to the end-user, crossing seismic-active areas. For unburied pipelines, both seismic ground wave and permanent ground deformation can cause severe damage to pipelines, depending on the pipeline geometry and connected structures. Due to the largely non-linear nature of the problem, a finite element...

2007

Over the past two decades meshless methods have attracted much attention owing to their advantages in adaptivity, higher degree of solution field continuity, and capability to handle moving boundary and changing geometry. In this work, a meshless integral method based on the regularized boundary integral equation has been developed and applied to two-dimensional linear elasticity and elastoplas...

Journal: :Journal of physics 2023

Abstract During the operation of each machine, deformation and stress state its supporting structure is directly related to load. The load intensity ranges from minimum maximum value a function nominal force, torque, kinematic-dynamic values moving executive assemblies during machine process. deformations also shape type structure. However, although reliable, which refers integrity, production ...

Journal: :Journal of Systems and Software 2008
Chung-Ming Wang Nan-I Wu Chwei-Shyong Tsai Min-Shiang Hwang

In this paper, we shall propose a new image steganographic technique capable of producing a secret-embedded image that is totally indistinguishable from the original image by the human eye. In addition, our new method avoids the falling-off-boundary problem by using pixel-value differencing and the modulus function. First, we derive a difference value from two consecutive pixels by utilizing th...

2000
Koichi Hirota Atsuko Tanaka Toyohisa Kaneko Michitaka Hirose

In this paper, an implementation of visual and haptic feedback of deforming and cutting operations is discussed. In the implementation of the deforming operation, the surface shape is represented by a geometric model while the physical reaction is simulated using a spring model. The deformation of the spring model is reflected onto the geometric model by using the interpolation technique. In th...

Journal: :J. Inform. and Commun. Convergence Engineering 2010
Jae-Jeong Hwang Sang-Gyu Cho Jung-sik Lee Sang-Hyon Park

— We have proposed a method to detect and track moving ships using position from Radar and image processor. Real-time segmentation of moving regions in image sequences is a fundamental step in the radar-camera integrated system. Algorithms for segmentation of objects are implemented by composing of background subtraction, morphologic operation, connected components labeling, region growing, and...

1995
Daryl H. Hepting Weizhang Huang Robert D. Russell

Time-dependent partial differential equations are indispensable in scientific and engineering research, where they are used to model physical phenomena such as fluid flow and combustion. Moving mesh numerical solution methods have proven to be particularly well-suited to compute solutions to such problems which change non-uniformly over time. Computer visualization of moving mesh methods is an ...

2004
Zhiming Ding Ralf Hartmut Güting

One of the key research issues with moving objects databases (MOD) is the uncertainty management problem. In this paper, we discuss how the uncertainty of network constrained moving objects can be reduced by using reasonable modeling methods and location update policies. Besides, we present a framework to support variable accuracies in presenting the locations of moving objects. The operation d...

2009
Yajing Zhang Maohui Xia Yun Zhai

The moving least-square technique is used to construct shape function in the Element Free Galerkin Method at present, but sometimes the algebra equations system obtained from the moving least-square approximation is ill-conditioned and the shape function needs large quantity of inverse operation. In this paper, the weighted orthogonal functions are used as basis ones, the application in the cal...

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