This paper presents a design of solar tracking system driven by 12V or 24V DC motor controlled by a microchip ‘Intelligent Drive unit IBL2403’[1]. The proposed double axis rotation solar tracker ensures the optimization of conversion of solar energy to electrical energy by orientation of ‘titanium-oxide’ PV panels’ [2-6] in accordance to the hemispherical position of the Sun. The hemispheroidal...

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We consider the issues involved in writing path planners that can work well with complex geometric models of robots and workspaces, and outline our work in implementing a solution. We claim that many path planning problems can be solved by a mixture of global and local planning. In turn, local planning can be usefully supported by the provision of efficient distance computations. Global plannin...

Software testing involves identifying the test cases which discover errors in the program. However, exhaustive testing of software is very time consuming. In this paper, a technique is proposed to prioritize test case scenarios by identifying the critical path clusters using genetic algorithm. The test case scenarios are derived from the UML activity diagram and state chart diagram. The testing...

This paper describes a mathematical model for all path length parameters (APL: Average Path Length, LPL: Longest Path Length, and SPL: Shortest Path Length) of Binary Decision Diagrams (BDDs). The proposed model is based on an empirical analysis of randomly generated Boolean functions. The formal core of the developed model is a unique equation for the path-related objective functions over the ...

To escape competition at the dung pile, a ball-rolling dung beetle forms a piece of dung into a ball and rolls it away. To ensure their efficient escape from the dung pile, beetles rely on a 'celestial compass' to move along a straight path. Here, we analyzed the reliability of different skylight cues for this compass and found that dung beetles rely not only on the sun but also on the skylight...

0.0 Introduction Anong, a Tibeto-Burman language of Yunnan, is in its last generation—in 1999, there were 62 fluent speakers left, all over 50. The descriptive material on Anong is quite limited; what there is all comes from the work of Sun Hongkai, particularly 1988, 1999a, and a preliminary, but still useful wordlist (Sun ms.); a little additional data can be found in Sun Hongkai 1999b and Su...

To generate parallel contour path for direct production of complicated cavity component, a novel path planning based on Voronoi-based distance map is presented in this paper. Firstly, the grid representation of polygonal slice is produced by hierarchical rasterization using graphics hardware acceleration and divided into Voronoi cells of contour by an exact EDT (Euclidean distance transformatio...

White-light measurements made by the SOHO LASCO C2 and C3 coronagraphs and the Mk III Mauna Loa K-coronameter, ranging from 1.15 to 30 have been combined with Kitt Peak daily He I R _ , 1083 nm coronal hole maps, and full Sun Y ohkoh soft X-ray images, to show that the boundaries of polar coronal holes, as determined by measurements of path-integrated density, extend approximately radially into...

Abstract Solar phase scintillation and solar amplitude are fundamentally important in deep space mission operations for designing a communication system capable of transmitting signals when the signal path is close to Sun. The ESA’s BepiColombo measurement data were analyzed previous paper terms power spectral density scintillation, also with comparison Woo’s theory, X-band Ka-band propagate Su...