نتایج جستجو برای: moving interface

تعداد نتایج: 305587  

Journal: :J. UCS 2008
Gerrit C. van der Veer

Cognitive Ergonomics is discussed as a systematic base for user interface design. The history of the discipline, explicitly existing now for about 25 years, is discussed, from participatory design, through various flavors of user centered design, to contextual design. Several persistent misunderstandings regarding the need for user interface design are analyzed. The concept of activity centered...

2008
Raphaël Grasset Andreas Dünser Mark Billinghurst

Navigating between different virtual worlds, interface scales or task contexts has emerged as an interesting research area for Augmented and Virtual Reality interfaces. We have developed a transitional interface which allows users to smoothly move between exocentric Augmented Reality and egocentric Virtual Reality views. In this paper we report on the first user study to investigate performance...

Journal: :J. Comput. Physics 2007
Pierre Degond Giacomo Dimarco Luc Mieussens

This paper is a continuation of earlier work [6] in which we presented an automatic domain decomposition method for the solution of gas dynamics problems which require a localized resolution of the kinetic scale. The basic idea is to couple the macroscopic hydrodynamics model and the microscopic kinetic model through a buffer zone in which both equations are solved. Discontinuities or sharp gra...

Journal: :J. Comput. Physics 2009
Shingyu Leung Hongkai Zhao

We propose a novel algorithm for modeling interface motions. The interface is represented and is tracked using quasi-uniform meshless particles. These particles are sampled according to an underlying grid such that each particle is associated to a grid point which is in the neighborhood of the interface. The underlying grid provides an Eulerian reference and local sampling rate for particles on...

2014
Ameneh Taleei Mehdi Dehghan

In recent years, there have been extensive efforts to find the numerical methods for solving problems with interface. The main idea of this work is to introduce an efficient truly meshless method based on the weak form for interface problems. The proposed method combines the direct meshless local Petrov–Galerkin method with the visibility criterion technique to solve the interface problems. It ...

2007
Jianming Yang Frederick Stern

In this paper, we present a combined immersed-boundary/ghost-fluid sharp interface method for the simulations of three-dimensional two-phase flows interacting with moving bodies on fixed Cartesian grids. This work is based on a sharp interface immersed boundary method for fluid flows interacting with moving bodies and a level set based ghost fluid method (GFM) for two-phase interface treatment....

2000
Albrecht Schmidt Hans-W. Gellersen Michael Beigl Ortwin Thate

Typical usage scenarios for wearable computers are support of users doing a certain task, e.g. aircraft repair or military applications. If the user is moving while using the wearable some restriction for the user interface apply. In this paper we present some of these restrictions and suggest a wearable user interface taking these findings into account.

2006
Takaomi Hisamatsu Buntarou Shizuki Shin Takahashi Jiro Tanaka

We developed a novel click-free interface for laser-pointer-based systems with wall-sized screens. The technique includes two moving operations: “crossing,” which uses four edges as a crossing target to execute a command, and “encircling,” which selects objects by drawing a circle around them. This paper describes the proposed interface, its implementation, and an experiment conducted to test t...

2013
RICARDO H. NOCHETTO ABNER J. SALGADO

We introduce a diffuse interface model for the phenomenon of electrowetting on dielectric and present an analysis of the arising system of equations. Moreover, we study discretization techniques for the problem. The model takes into account different material parameters on each phase and incorporates the most important physical processes, such as incompressibility, electrostatics and dynamic co...

2004
Marcela A. Cruchaga Diego J. Celentano Tayfun E. Tezduyar

In recent years, much effort has been devoted to development of numerical formulations for analysis of moving boundaries and interfaces. The Edge-Tracked Interface Locator Technique (ETILT) was introduced to better enforce mass balance and to yield a sharper representation of the interface. In this technique the interface is defined by a combination of node-based and edge-based representations ...

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