Abstract: This research is aimed at improving accuracy of stereolithography (Rapid prototyping) system. The objective of this paper is to detect the flatness of freeform liquid surface. The principle of measurement is performed by obtaining grating image of total reflection from freeform liquid surface. The detection is performed by two steps, coarse detection and fine one. Coarse detection is ...

the millennium development goals (mdgs) are eight international development goals and 21 targets that all countries have agreed to achieve by the year 2015. central asian countries have shown uneven progress in achieving these goals. this paper conducts a comparative study of the impact of economic integration of the regional countries into the world economy on uneven progress of central asian ...

We consider a finite-difference approximation to the Cauchy problem for a firstorder hyperbolic partial differential equation using different mesh spacings in different portions of the domain. By reformulating our problem as a difference approximation to an initial-boundary value problem, we are able to use the theory of H. O. Kreiss and S. Osher to analyze the L3 stability of our scheme. 0. In...

This paper presents a novel gait generation approach which combines a reactionary and a central pattern generator (CPG) system. The former couples isolated leg controllers by simple gait generation rules that ensure static stability and produce a continuum of gait patterns across the full speed range. The CPG system is based on six coupled oscillators and complements the reactionary system to f...

The use of uneven-aged silviculture has increased markedly in the past 20 years. This is especially true in the southern United States, where the use of clearcutting and planting is often viewed as a practice whose emphasis on fiber production results in unacceptable consequences for other values, such as those that benefit from maintenance of continuous forest cover over time. Public lands in ...

A 31-year-old single man (AB) sought neuropsychiatric consultation for treatment-resistant motor and vocal tics. He described himself expressing a total of 24 different tics, mainly facial twitches (eye blinking, raising eyebrows, mouth opening , lips licking, stereotyped grimacing) and inappropriate utterances (grunting, throat clearing, sniffi ng), since the age of 7. There appeared to be no ...

The issue of economic globalization and global economic change has been a subject of immense academic research in the past two decades. The Janus face of economic globalization, however, continues to obfuscate our understanding of its complex processes and alleged geographical outcomes. In this paper, I aim to re-present the indispensable role of geography in conceptualizing economic globalizat...