In the following we will discuss a cost effective immersive gaming environment and the implementation in Blender [1], an open source game engine. This extends traditional approaches to immersive gaming which tend to concentrate on multiple flat screens, sometimes surrounding the player, or cylindrical [2] displays. In the former there are unnatural gaps between each display due to screen framin...

Tongyu County in Northeast China is highly prone to land degradation due to its fragile physical settings characterized by a flat topography, a semi-arid climate, and a shallow groundwater table. This study aims to determine the causes of land degradation through detecting the long-term trend of land cover changes. Degraded lands were mapped from satellite images recorded in 1992 and 2002. Thes...

Given an embedded cylinder in an arbitrary surface, we give a gauge theoretic definition of the associated Goldman flow, which is a circle action on a dense open subset of the moduli space of equivalence classes of flat SU(2)-connections over the surface. A cylinder in a compact nonorientable surface lifts to two cylinders in the orientable double cover, and the composite flow is the compositio...

This paper proposes a multiple layer combinations reversible watermarking scheme. We use a combination of predictors for calculating the new value of central pixel, as you can see in this paper we use a circular predictor, a cross one and also a square predictor, taking in consideration all the possibilities to mark the pixels. Also, an advantage of our method is the one of splitting the image ...

a Ferroelectric liquid-crystal polarization switch, b Birefringent lens Bias: sharp boundary, blurred texture perceived in front. Limitations: correct blur only if viewer accomodates to display screen. unrealistic blur. Stimuli used in Experiment 1. (a) Volumetric presentation: two flat textures (chosen among four) displayed in separate focal planes (distance 1.2 D), blur produced by accommodat...

: In this paper, electronic properties of BC2N nanoribbons with zigzag edges are studied theoretically using a tight binding model and the first-principles calculations based on the density functional theories. The zigzag BC2N nanoribbons have the flat bands when the atoms are arranged as B-C-N-C along the zigzag lines. In this arrangement, the effect of charge transfer is averaged since B and ...

For the mean curvature vector field H and the Laplace operator ∆ of a submanifold in the Minkowski space, a submanifold satisfying the condition ∆H = f H + gC is known as a generalized null 2-type, where f and g are smooth functions, and C is a constant vector. The notion of generalized null 2-type submanifolds is a generalization of null 2-type submanifolds defined by B.-Y. Chen. In this paper...

We study low degree graph problems such as Maximum Independent Set and Minimum Vertex Cover. The goal is to improve approximation lower bounds for them and for a number of related problems like Max-B-Set Packing, Min-B-Set Cover, and Max-B-Dimensional Matching, B ≥ 3. We prove, for example, that it is NP-hard to achieve an approximation factor of 95 94 for Max-3-DM, and a factor of 48 47 for Ma...

We investigate the algorithmic and implementation issues related to the eeective and eecient use of lifted cover inequalities and lifted GUB cover inequalities in a branch-and-cut algorithm for 0-1 integer programming. We have tried various strategies on several test problems and we identify the best ones for use in practice. Branch-and-cut, with lifted cover inequalities as cuts, has been used...