1,058 research outputs found

    Acoustic Masking of a Stealthy Outdoor Robot Tracking a Dynamic Target

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    This work is motivated by the desire to covertly track mobile targets, either animal or human, in previously unmapped outdoor natural environments using off-road robotic platforms with a non-negligible acoustic signature. The use of robots for stealthy surveillance is not new. Many studies exist but only consider the navigation problem to maintain visual covertness. However, robotic systems also have a significant acoustic footprint from the onboard sensors, motors, computers and cooling systems, and also from the wheels interacting with the terrain during motion. All these can jepordise any visual covertness. In this work, we experimentally explore the concepts of opportunistically utilizing naturally occurring sounds within outdoor environments to mask the motion of a robot, and being visually covert whilst maintaining constant observation of the target. Our experiments in a constrained outdoor built environment demonstrate the effectiveness of the concept by showing a reduced acoustic signature as perceived by a mobile target allowing the robot to covertly navigate to opportunistic vantage points for observation

    Motion Planning And Control Of Cooperative Robotic Systems

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    MOTION PLANNING AND CONTROL OF COOPERATIVE ROBOTIC SYSTEMS Jaydev P. Desai Vijay Kumar James P. Ostrowski This thesis addresses the problem of motion planning for cooperative robotic systems. The problem of motion planning for a robotic system is stated as: Given initial positions and orientations and goal positions and orientations for a collection, C, of robots, in workspace, W, generate a continuous trajectory for C avoiding contact with the obstacles, O i , subject to various dynamical constraints of the system. Because robots are physical systems subject to continuous laws of motion and driven by continuous actuators, we formulate the motion planning problem as an unconstrained variational problem using tools from optimal control and calculus of variations in the first part of the thesis. We develop a general framework for solving motion planning problems involving equality and inequality constraints. In the second part of the thesis, we study planar human manipulation and de..

    Corrigendum to ‘Toll-like receptors in immunity and inflammatory diseases: Past, present, and future’ [International Immunopharmacology 59 (2018) 391–412](S156757691830095X)(10.1016/j.intimp.2018.03.002)

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    The authors regret that the name of the author was mentioned incorrectly in the earlier version of the manuscript. It should be mentioned as Vijay Kumar. The authors would like to apologise for any inconvenience caused

    13th International Symposium on Experimental Robotics

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    The International Symposium on Experimental Robotics (ISER) is a series of bi-annual meetings which are organized in a rotating fashion around North America, Europe and Asia/Oceania. The goal of  ISER is to provide a forum for research in robotics that focuses on novelty of theoretical contributions validated by experimental results. The meetings are conceived to bring together, in a small group setting, researchers from around the world who are in the forefront of experimental robotics research. This unique reference presents the latest advances across the various fields of robotics, with ideas that are not only conceived conceptually but also explored experimentally. It collects robotics contributions on the current developments and new directions in the field of experimental robotics, which are based on the papers presented at the 13th ISER held held in Québec City, Canada, at the Fairmont Le Château Frontenac, on June 18-21, 2012. This present thirteenth edition of Experimental Robotics edited by Jaydev P. Desai, Gregory Dudek, Oussama Khatib, and Vijay Kumar  offers a collection of a broad range of topics in field and human-centered robotics.   

    sj-docx-1-msj-10.1177_13524585221097560 – Supplemental material for Lesion size and shape in central vein sign assessment for multiple sclerosis diagnosis: An in vivo and postmortem MRI study

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    Supplemental material, sj-docx-1-msj-10.1177_13524585221097560 for Lesion size and shape in central vein sign assessment for multiple sclerosis diagnosis: An in vivo and postmortem MRI study by Omar Al-Louzi, Sargis Manukyan, Maxime Donadieu, Martina Absinta, Vijay Letchuman, Brent Calabresi, Parth Desai, Erin S Beck, Snehashis Roy, Joan Ohayon, Dzung L Pham, Anish Thomas, Steven Jacobson, Irene Cortese, Pavan K Auluck, Govind Nair, Pascal Sati and Daniel S Reich in Multiple Sclerosis Journal</p

    AGU hydrology days 2013

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    2013 annual AGU hydrology days was held at Colorado State University on March 25 - March 27, 2013.The 2013 Hydrology Days Award was presented to Vijay P. Singh

    Retrospection as a Soothing Balm: A Study of the Major Novels of Anita Desai

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    Human beings always love their freedom like birds. When it is limited by some people in the family, particularly in the case of female, it leads to frustration. Consequently women start to feel neglected alone and don’t find themselves quite fit or comfortable in their present circumstances, even among their own people. They expect attention, love and care from their close people. But the failure of their attempt compels them to search for their own identity that has been lost taking on different roles imposed upon them by the family and society. At the result, they easily become victim of tension, worries, disappointment, anxiety, anger, indignation, depression and alienation. Consequently they take resort to retrospection. Anita Desai, through her women characters, explores all aspects of socio and psycho elements in her novels where retrospection plays a great role of a soothing balm.Keywords: Women, alienation, patriarchal, insanity, depression, retrospection, soothing balm

    Writing from the shadowlands: how cross-cultural literature negotiates the legacy of Edward Said

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    This thesis examines the impact of Edward Said's influential work Orientalism and its legacy in respect of contemporary reading and writing across cultures. It also questions the legitimacy of Said's retrospective stereotyping of early examples of cross-cultural representation in literature as uncompromisingly 'orientalist'. It is well known that the release of Edward Said's Orientalism in 1978 was responsible for the rise of a range of cultural and critical theories from multiculturalism to postcolonialism. It was a study that not only polarized critics and forced scholars to re-examine orientalist archives, but persuaded creative writers to re-think their ethnographic positions when it came to the literary representations of cultures other than their own. Without detracting from the enormous impact of Said, this thesis isolates gaps and silences in Said that need correcting. Furthermore, there is an element of intransigence, an uncompromising refusal to fine-tune what is essentially a binary discourse of the West and its other in Said's work, that encourages the continued interrogation of power relations but which, because of its very boldness, paradoxically disallows the extent to which the conflict of cultures indeed produced new, hybrid social and cultural formations. In an attempt to challenge the severity of Said's claim that 'every European, in what he could say about the Orient, was consequently a racist, an imperialist, and almost totally ethnocentric', the thesis examines a number of different discursive contexts in which such a presumption is challenged. Thus while the second chapter discusses the 'traditional' profession-based orientalism of nineteenth-century E. G. Browne, the third considers the anti-imperialism of colonial administrator Leonard Woolf. The fourth chapter provides a reflection on the difficulties of diasporic 'orientalism' through the works of Michael Ondaatje while chapter five demonstrates the effects of the dialogism used by Amitav Ghosh as a defence against 'orientalism'. The thesis concludes with an examination of contemporary writing by Andrea Levy that appositely illustrates the legacy of Said's influence. While the restrictive parameters of Said's work make it difficult to mount a thorough-going critique of Said, this thesis shows that, indeed, it is within the restraints of these parameters and in the very discourse that Said employs that he traps himself. This study claims that even Said is susceptible to 'orientalist' criticism in that he is as much an 'orientalist' as those at whom he directs his polemic

    India’s Long Road: The Search for Prosperity by Vijay Joshi

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    Vijay Joshi‟s India’s Long Road: The Search for Prosperity is an important addition to the list of books on the Indian economy–Jean Dréze and Amartya Sen‟s An Uncertain Glory: India and its Contradictions and Jagdish Bhagwati and Arvind Panagariya‟s Why Growth Matters: How Economic Growth in India Reduced Poverty and the Lessons for Other Developing Countries–written for the interested general reader as well as the specialist. In addition, those readers familiar with the literature assessing and evaluating India‟s economic reforms will remember Joshi as the co-author of India: Macroeconomics and Political Economy, 1964-1991(1994) and India's Economic Reforms, 1991-2001(1996) along with the late I. M. D. Little

    Vijay Tendulkar's Feminist Perspectives: A Study of Women's Representation in Indian Drama

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    &lt;p&gt;&lt;em&gt;&lt;span&gt;Vijay Tendulkar has emerged as a prominent personality in the Indian theatrical realm, making essential contributions to Indian drama through his excellent plays. In addition to his accomplishments as a Marathi playwright, he has also achieved recognition and appreciation in the field of Indian drama. The author has created numerous theatrical pieces that delve into various elements and themes, with a particular emphasis on depicting women and the obstacles they encounter within social frameworks. The representation of women is a focal point in his plays. The author explores both the susceptible and durable components of their existence. This article analyzes the academic accomplishments of Tendulkar in the realm of feminism. Several prominent female characters operate as mirrors of the societal standards and ideals that came before our time.&lt;/span&gt;&lt;/em&gt;&lt;/p&gt
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