2,262 research outputs found

    Dr. N. Rudraiah : a biobibliometric study

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    Dr. Rudraiah has worked in various fields in applied mathenlatics like fluid mechanics, magnetohydrodynamics, electrodynamics and smart materals of nanostructures. In his 43 pears of productive life, he has collaborated with 102 colleagues and students and has published 271 papers during 1962-2004. The collaboration co-efficient is 0.54. Highest collaborations were with M. Venkatachalappa (31), and B.C. Chandrasekhara (21). The core journals publishing his papers were: Indian Journal of Pure and Applied Mathematics, Current Science, International Journal of Heat and Mass Transfer, Acta Mechanica, Journal of Fluid Mechanics, Proc. Royal Cambridge Society of London and Physics of Fluid

    Structural, optical and nanomechanical properties of (1 1 1) oriented nanocrystalline ZnTe thin films

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    Structural, optical and nanomechanical properties of nanocrystalline Zinc Telluride (ZnTe) films of thickness upto 10 microns deposited at room temperature on borosilicate glass substrates are reported. X-ray diffraction patterns reveal that the films were preferentially oriented along the (1 1 1) direction. The maximum refractive index of the films was 2.74 at a wavelength of 2000 nm. The optical band gap showed strong thickness dependence. The average film hardness and Young’s modulus obtained from loaddisplacement curves and analyzed by Oliver-Pharr method were 4 and 70 GPa respectively. Hardness of (1 1 1) oriented ZnTe thin films exhibited almost 5 times higher value than bulk. The studies show clearly that the hardness increases with decreasing indentation size, for indents between 30 and 300 nm in depth indicating the existence of indentation size effect. The coefficient of friction for these films as obtained from the nanoscratch test was ∼0.4.Financial support in the form of fellowships to MSRNK and SK from the ACRHEM project of DRDO is acknowledged

    A Survey on Graph Database Management Techniques for Huge Unstructured Data

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    Data analysis, data management, and big data play a major role in both social and business perspective, in the last decade. Nowadays, the graph database is the hottest and trending research topic. A graph database is preferred to deal with the dynamic and complex relationships in connected data and offer better results. Every data element is represented as a node. For example, in social media site, a person is represented as a node, and its properties name, age, likes, and dislikes, etc and the nodes are connected with the relationships via edges. Use of graph database is expected to be beneficial in business, and social networking sites that generate huge unstructured data as that Big Data requires proper and efficient computational techniques to handle with. This paper reviews the existing graph data computational techniques and the research work, to offer the future research line up in graph database management

    Tool handle design for power GRIP

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    The use of tools is still widely appreciated in industries at various levels. The range of their application varies from a simple task like hammering to a complicated, complex and precision-demanding tasks such as that of surgical scalpels. Hence, it becomes highly essential to design the tool for ‘comfort’ from the perspective of user. The aim of this study is to design a tool handle for a task involving a simple power grip such as hammer. The focus of this study is mainly confined to identify the right cross-section and profile of the tool handle, based on subjective experimentation of a group of subjects and find the approximate dimension and shape(of both cross-section and profile) which outstands in subject’s perception of comfort. In this study, a new criteria for decision making has been employed during a brief subjective analysis to find out the better cross- section shape among the various possible shapes for the handle. The shape of the profile has been reverse engineered from an existing tool handle using a CAD software which was been rated high in market. At various turns during this study, new simplified approaches were used to accomplish certain tasks which can be considered as reasonable approximation to standard methods. The final step is to evaluate the design which has been perceived most comfortable by the subjects, using a subjective analysis through hand-mapping of discomfort

    Floral stalk on date palm: a new discovery

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    Date palm (Phoenix dactylifera L.) is harvested for its sweet fruit mainly in the middle east and other parts of the world. It has been cultivated for several thousand years and is known to be found in Mesopotamia as well. Besides the fruit, the various parts of the tree are employed for variety of uses. The stalks of the fruit, which connect the fruit to the spikelet, are very beautiful, colourful flower like structures, which have never been described earlier. These fruit stalks could be used for decorations in houses and would then add to more economic gain to the farmer. We observed these stalks and describe here this interesting finding hitherto unreported in the world literature. DOI: http://dx.doi.org/10.3329/ijarit.v4i2.22649 Int. J. Agril. Res. Innov. & Tech. 4 (2): 53-54, December, 201
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