772 research outputs found
Photodissociation of molecular ions and low-energy collisions of atoms and ions
No full textThesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1993.Includes bibliographical references.by Atul D. Pradhan.Ph.D
Conditional models for 3D human pose estimation:
No full textHuman 3d pose estimation from monocular sequence is a challenging problem, owing to highly articulated structure of human body, varied anthropometry, self occlusion, depth ambiguities and large variability in the appearance and background in which humans may appear. Conventional vision based approaches to human 3d pose estimation mostly employed "top-down methods", which used a complete 3d human model, in a hypothesized pose, to explain the configuration of the humans in the observed 2d image. In this thesis, we work with "bottom-up methods" for human pose estimation, that use low level image features to directly predict 3d pose. The research draws on recent innovations in statistical learning, observation-driven modeling, stable image encodings, semi-supervised learning and learning perceptual representations. We address the problems of (a) modeling pose ambiguities due to 3d-to-2d projection and self occlusion, (b) lack of sufficient labeled data for training discriminative models and (c) high dimensionality of human 3d pose state space. In order to resolve 3d pose ambiguities, we use multi-valued functions to predict multiple plausible 3d poses for an image observation. We incorporate unlabeled data in a semi-supervised learning framework to constrain and improve the training of discriminative models. We also propose generic probabilistic Spectral Latent Variable Models to efficiently learn low dimensional representations of high dimensional observation data and apply it to the problem of human 3d pose inference.Ph.D.Includes bibliographical references (p. 182-193)by Atul Kanauji
Numerical Modelling of Mechanical Behaviour of Graphene
No full textGraphene, one of the allotropes (diamond, carbon nanotube, and fullerene) of element carbon, is a monolayer of honeycomb lattice of carbon atoms, which was discovered in 2004. The Nobel Prize in Physics 2010 was awarded to Andre Geim and Konstantin Novoselov for their ground breaking work on the two-dimensional (2D) graphene [1]. Since its discovery, the research communities have shown a lot of interest in this novel material owing to its intriguing electrical, mechanical and thermal properties. It has been confirmed that grapheme possesses very peculiar electrical properties such as anomalous quantum hall effect, and high electron mobility at room temperature (250000 cm2/Vs). Graphene also has exceptional mechanical properties. It is one of the stiffest (modulus ~1 TPa) and strongest (strength ~100 GPa) materials. In addition, it has exceptional thermal conductivity (5000 Wm-1K-1). Due to these exceptional properties, graphene has demonstrated its potential for broad applications in micro and nano devices, various sensors, electrodes, solar cells and energy storage devices and nanocomposites. In particular, the excellent mechanical properties of graphene make it more attractive for development next generation nanocomposites and hybrid materials..
Mutual information relevance networks : functional genomic networks built from pair-wise entropy measurements
No full textThis electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.Thesis (S.M.)--Harvard--Massachusetts Institute of Technology Division of Health Sciences and Technology, 2002.Includes bibliographical references (leaves 27-28).by Atul Janardhan Butte.Thesis (S.M.)--Harvard--Massachusetts Institute of Technology Division of Health Sciences and Technology, 2002
Business and Politics in India
No full textOverview Description Table of Contents Author InformationCoverBusiness and Politics in IndiaEdited by Christophe Jaffrelot, Edited by Atul Kohli, and Edited by Kanta MuraliModern South AsiaDescriptionOver the last few decades, politics in India has moved steadily in a pro-business direction. This shift has important implications for both government and citizens. In Business and Politics in India, leading scholars of Indian politics have gathered to offer an analytical synthesis of this vast topic. Collectively, they cover the many strategies that businesses have used to exert their newfound power in recent times and organize the book around a few central concerns. They first analyze the nature of business power and how it shapes political change in India. Second, they look at the consequences of business' growing power on some important issue areas-labor, land, urban governance, and the media. Finally, they take account of regional variation and analyze state-business relations. This definitive account offers significant insights into how and why corporations have increased their power in contemporary Indian politics
Business and Politics in India
No full textOverview Description Table of Contents Author InformationCoverBusiness and Politics in IndiaEdited by Christophe Jaffrelot, Edited by Atul Kohli, and Edited by Kanta MuraliModern South AsiaDescriptionOver the last few decades, politics in India has moved steadily in a pro-business direction. This shift has important implications for both government and citizens. In Business and Politics in India, leading scholars of Indian politics have gathered to offer an analytical synthesis of this vast topic. Collectively, they cover the many strategies that businesses have used to exert their newfound power in recent times and organize the book around a few central concerns. They first analyze the nature of business power and how it shapes political change in India. Second, they look at the consequences of business' growing power on some important issue areas-labor, land, urban governance, and the media. Finally, they take account of regional variation and analyze state-business relations. This definitive account offers significant insights into how and why corporations have increased their power in contemporary Indian politics
Book Discussion of Being Mortal: Medicine and What Matters in the End by Atul Gawande
No full textIn Being Mortal, bestselling author Atul Gawande tackles the hardest challenge of his profession: how medicine can not only improve life but also the process of its ending. He asserts that medicine can comfort and enhance our experience even to the end, providing not only a good life but also a good end. — Barnes and Noble
Discussion Leader: Vida Lock. Served as Dean of Nursing, CSU
Friends of the Library book discussions are free and open to all CSU faculty, staff, and students and the general public. Refreshments will be served.
Contact Barbara Loomis at [email protected] for more information
Business and Politics in India
No full textOverview Description Table of Contents Author InformationCoverBusiness and Politics in IndiaEdited by Christophe Jaffrelot, Edited by Atul Kohli, and Edited by Kanta MuraliModern South AsiaDescriptionOver the last few decades, politics in India has moved steadily in a pro-business direction. This shift has important implications for both government and citizens. In Business and Politics in India, leading scholars of Indian politics have gathered to offer an analytical synthesis of this vast topic. Collectively, they cover the many strategies that businesses have used to exert their newfound power in recent times and organize the book around a few central concerns. They first analyze the nature of business power and how it shapes political change in India. Second, they look at the consequences of business' growing power on some important issue areas-labor, land, urban governance, and the media. Finally, they take account of regional variation and analyze state-business relations. This definitive account offers significant insights into how and why corporations have increased their power in contemporary Indian politics
Luminescence
No full textWith increasing interest in mixed-anionic hydrides, a number of interesting properties have been reported. Here, the structural and optical properties of (Eu2+-doped) MCaH3–MCaF3 (M = Rb, Cs) are investigated. For M = Rb, a complete hydride–fluoride solid solution series is found and for M = Cs, the known solid solution series (0 ≤ x ≤ 1.70) can be extended to x = 3. In case of Cs, a very bright luminescence emission is observed in Eu2+-doped samples, whereas the luminescence is fairly weak in Rb based compounds. With increasing hydride content, a shift of the emission color from cyan-green to red can be observed. In contrast to earlier reports for mixed fluoride–hydride host, the redshift is not a gradual shift of a single broad emission band, but the appearance of new narrow emission bands on the low energy side, which are assigned to the occupation of sites with higher hydride content. Consequently, this finding represents the first example in a mixed anionic hydride with a site-sensitive emission for sites with locally varying hydride content in the first coordination sphere and may serve as a general example for emission color tuning taking advantage of mixed-anionic compounds
ALEXANDER FRACTIONAL INTEGRAL FILTERING OF WAVELET COEFFICIENTS FOR IMAGE DENOISING
No full textThe present paper, proposes an efficient denoising algorithm which works well for images corrupted with Gaussian and speckle noise. The denoising algorithm utilizes the alexander fractional integral filter which works by the construction of fractional masks window computed using alexander polynomial. Prior to the application of the designed filter, the corrupted image is decomposed using symlet wavelet from which only the horizontal, vertical and diagonal components are denoised using the alexander integral filter. Significant increase in the reconstruction quality was noticed when the approach was applied on the wavelet decomposed image rather than applying it directly on the noisy image. Quantitatively the results are evaluated using the peak signal to noise ratio (PSNR) which was 30.8059 on an average for images corrupted with Gaussian noise and 36.52 for images corrupted with speckle noise, which clearly outperforms the existing methods
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