Browsing by Author "Ji, Jim"
Now showing items 1-20 of 103
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Dong, Aotuo (2015-05-13)The analysis of photonic nanojets formed by dielectric spheres generally assumes that the incident field is a plane wave. In this work, using vector spherical harmonics representations, we analyze the case of a more realistic ...
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Sekar, Ramnath (2011-10-21)To troubleshoot equipment installed in geographically distant locations, equipment manufacturers and system integrators are increasingly resorting to remote diagnosis in order to reduce the down time of the equipment, ...
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Chen, Qi (2014-08-04)Arsenic trisulfide (As_(2)S_(3)) waveguides on lithium niobate (LiNbO_(3)) substrate have a wide variety of applications in both near-infrared (near-IR) and mid-infrared (mid-IR). As an amorphous material, As_(2)S_(3) has ...
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Felps, Daniel (2012-10-19)The objective of this dissertation is to develop speech processing methods that enable without altering their identity. We envision accent conversion primarily as a tool for pronunciation training, allowing non-native ...
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Liu, Qun (2013-04-04)Perfusion in biological system refers to capillary-level blood flow in tissues, and is a critical parameter used for detecting physiological changes. Medical imaging provides an effective way to measure tissue perfusion. ...
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Narasimhan, Bharat (2009-05-15)This thesis presents the very practical and novel approach of using the Graphical User Interface (GUI) to compute the entire set of Proportional Integral Derivative (PID) controllers given the transfer function or the ...
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McConnell, Stephen Craig (2017-02-01)Duchenne muscular dystrophy is a fatal, congenital disease affecting males. Histopathological methods have served to aid in its diagnosis; however, the ratio of skeletal muscle tissue constituents—a theoretical marker of ...
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Song, Yaohua (2012-10-19)Nowadays, TV advertising is an important part of our daily life. However, it is usually hard for organizations that produce and pay for the advertisements to confirm whether their commercials are broadcasted as required ...
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Pearson, Jeremy T (2013-05-06)I propose and demonstrate a method by which barium titanate nanoparticle clusters can be used as exogenous contrast agents in Second Harmonic Optical Coherence Tomography imaging systems to localize and highlight desired ...
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Wang, Chia-Wen (Texas A&M University, 2008-10-10)Iterative decoding and codes on graphs were first devised by Gallager in 1960, and then rediscovered by Berrou, Glavieux and Thitimajshima in 1993. This technique plays an important role in modern communications, especially ...
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Zhou, Yifeng (2014-12-03)Chalcegenide glass material, such as amorphous As2S3, is an ideal candidate material to be integrated onto a much lower refractive index substrate and used as an all-optical active device. The As2S3 glass is with wide ...
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Lee, Da Saem (2016-04-22)Volumetric Optical Coherence Tomography and Vibrometry (VOCTV) were recently developed to record very sensitive spatially resolved vibratory measurements in the unopened mouse cochlea. It is a challenge to do quantitative ...
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Sambasubramanian, Srinath (2011-10-21)Elastography is a non-invasive medical imaging modality that is used as a diagnostic tool for the early detection of several pathological changes in soft tissues. Elastography techniques provide the local strain distributions ...
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Pi, Pengcheng (2022-04-04)Computer vision has made massive progress in recent years, thanks to hardware and algorithms development. Most methods are performance-driven meanwhile have a lack of consideration for energy efficiency. This dissertation ...
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Mitra, Sandipan (2009-05-15)This thesis aims to cover some aspects of synthesis and design of Proportional- Integral-Derivative (PID) controllers. The topics include computer aided design of discrete time controllers, data-based design of discrete ...
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Jia, Xiaoqian (2019-11-18)Cone-beam computed tomography (CBCT) is increasingly used in radiotherapy for patient alignment and adaptive therapy where organ segmentation and target delineation are often required. However, due to the poor image quality, ...
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Vafay Eslahi, Samira (2022-07-26)Magnetic resonance imaging (MRI) is a noninvasive imaging modality that produces high-quality images. One of the biggest challenges in MRI is the lengthy scan procedure which could lead to motion artifact and patient ...
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Deka, Sthiti (2011-10-21)Elastography is a non-invasive imaging modality that uses ultrasound to estimate the elasticity of soft tissues. The resulting images are called 'elastograms'. Elastography techniques are promising as cost-effective tools ...
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Jainsky, Julien Sebastien 1981- (2012-11-29)Steganography and covert-communications represent a great and real threat today more than ever due to the evolution of modern communications. This doctoral work proposes defenses against such covert-communication techniques ...
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Chen, Xi (2020-10-26)Diagnosis of atherosclerosis requires morphological and biochemical information in vivo and one single imaging system cannot provide comprehensive details. Therefore, researchers have been interested in combining two ...