30 research outputs found

    Hybrid lunar inflatable structure

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    Before man had even stepped foot on the lunar surface, the idea of establishing a base was discussed extensively, be it in science fiction or academia. Although, to this day there has not been an actual base on the Moon, many studies have been conducted regarding design possibilities and environmental impacts. There exists a prevalent challenge in regards to the predictability of the effects the lunar environment has on surface structures. This thesis discusses those aspects of lunar habitats and proposes a new design concept.M.S.Includes bibliographical referencesby Rohith Dronadul

    Applications of Fixator-norator Pair in Companion Model Based Designs

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    AbstractThis paper presents a novel approach to the accurate time domain analysis and design of analog circuits containing storage elements by making use of ‘companion models’. The emphasis is given to the design using fixator-norator pair, which is now ingenious in analog circuit design. The Backward Euler method can render a storage element to an equivalent circuit, containing only linear components viz. current source or voltage source and resistance. This distinctive feature allows us to generate equivalent companion models of the storage elements for every time step, whereby persuading the application of fixator-norator pairs in such circuits containing reactive components. This paper briefly explains the construction of equivalent circuits at desired time steps and provides a detailed explanation on the design of the gain of an op-amp differentiator for a given input by exploiting the fixator-norator method. The proposed method reveals to be much reliable and accurate in the design of circuits containing reactive elements

    Mid infrared spectroscopic imaging and tomography

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    Fourier Transform Infrared (FT-IR) Spectroscopic Imaging is an optical technique that simultaneously provides morphological (two dimensional) and mid-infrared spectral (one dimensional) information for a specimen under observation. In this dissertation, we develop a new instrument that extends the capabilities of FT-IR imaging to provide three dimensional morphological information along with mid-infrared spectral information on the microscopic length scale. We first demonstrate that spectroscopic information from the mid-infrared can be used to perform histologic recognition and cancer detection in prostate, breast and skin cancer tissues. These studies utilize FT-IR imaging data of thin tissue slices from several hundred patients. The segmentation algorithms and instrumentation used are described in detail. We perform a rigorous analysis of instrumentation and data so as to understand the limits and limitations of current state-of-the-art instrumentation. We then propose a new instrument that adds a new dimension of information to current instruments and establish the new state-of-the-art in mid-infrared imaging. The theoretical basis of such instrumentation is presented in detail and techniques for visualization of four dimensional data are outlined.Item withdrawn by Alexis Thompson ([email protected]) on 2013-02-21T21:53:07Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 1 Draft_thesis_8w.pdf: 42631683 bytes, checksum: 360f99c66ac2828c1b3f22bdcb7f998e (MD5)Made available in DSpace on 2013-05-28T19:18:36Z (GMT). No. of bitstreams: 2 Rohith_Reddy.pdf: 42629508 bytes, checksum: 8b431c6483381f8b5e91bfc26a3b8e4a (MD5) license.txt: 4062 bytes, checksum: b0c50edd2966f9135f5ce3bd13743c87 (MD5)Item marked as restricted to the 'Administrator' Group (id=1) by Seth Robbins ([email protected]) on 2013-05-28T19:21:31Z Item is restricted until 2015-05-28T19:21:22ZRestriction data tranferred 2014-07-01T11:16:35-05:00 Original Data Group with Access Administrator Release Date: 2015-05-28 14:21:22 UTC Reason: Author requested closed access (OA after 2yrs) in Vireo ETD systemLimited Restriction Lifted for Item 44734 on 2015-05-28T10:01:02Z

    Retracted: When a giant ovarian cyst poses a diagnostic dilemma

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    The article " When a giant ovarian cyst poses a diagnostic dilemma" is retracted by the Editor-in-Chief, on the request of corresponding author and co-authors. The corresponding author informed that the patient described in this article, although willingly gave her consent for revealing her clinical data for publication, later withdrew her consent after knowing about the publication of clinical material during she came for a follow up visit
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