Graphical menus provide slow performance and yet users often try to select menu commands as fast as possible. Shortcut techniques that enable users to by-pass selections from a graphical menu are fast, but are not the ultimate answer to the performance problem. Shortcut techniques pose high demands on human memory. They require much training and frequent use. They do not scale well. And they of...

Concentric mosaic offers a quick solution for the construction and navigation of a virtual environment. However, the associated huge amount of data presents a heavy burden for its application. In this paper, we propose the rebinning of slits (ROSS) approach for the compression of concentric mosaic. The proposed scheme decorrelates the 3D concentric mosaic data set by rebinning the vertical slit...

Introduction: Lunar concentric craters represent an anomalous type of impact structures on the Moon [1]. The concentric crater Archytas G in mare Frigoris has first been catalogued as a concentric crater in [2]. According to Fig. 1, it is located on top of a large lunar intrusive dome, termed Ar1 in [3]. The dome Ar1 is the only lunar dome known to date with a concentric crater on its surface. ...

the present paper aims to investigate the effects of modularity and the layout of subsystems and parts of a complex system on its maintainability. for this purpose, four objective functions have been considered simultaneously: i) maximizing the level of accordance between system design and optimum modularity design,ii) maximizing the level of accessibility and the maintenance space required,iii...

a facility layout problem is concerned with determining the best position of departments, cells, or machines on the plant. an efficient layout contributes to the overall efficiency of operations. it’s been proved that, when system characteristics change, it can cause a significant increase in material handling cost. consequently, the efficiency of the current layout decreases or is lost and it ...

This paper is on the aesthetic layout of n-ary trees with nodes of variable size, also referred to as generalized box-drawing. For this layout problem a few algorithms have been proposed, which differ in their runtime performance and the attained aesthetic criteria. We introduce a new approach to this layout problem, which is interesting because of both its simplicity and elegance, and which em...