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2007

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Articles 901 - 910 of 910

Full-Text Articles in Electrical and Computer Engineering

Mobile Array Designs With Anserlin Antennas And Efficient, Wide-Band Peec Models For Interconnect And Power Distribution Network Analysis, Michael A. Cracraft Jan 2007

Mobile Array Designs With Anserlin Antennas And Efficient, Wide-Band Peec Models For Interconnect And Power Distribution Network Analysis, Michael A. Cracraft

Doctoral Dissertations

"A mobile, wide-band antenna system has been developed around the ANSERLIN antenna element and a 3-dB splitter design. The size of the antenna elements was reduced over previous versions by introducing dielectric substrates. Additionally, new variations of the antenna were designed to influence radiation characteristics. To further reduce the number of components in the array, a very low profile splitter was designed and mounted below one of the antenna elements, doubling as the return plane for the antenna. The partial-element equivalent circuit (PEEC) method has been used for 3D interconnect analysis and numerous other applications. Being based on the same …


Data Fusion Techniques For Health Monitoring Of Aging Aircraft And Skin Cancer Detection, Kapil Gupta Jan 2007

Data Fusion Techniques For Health Monitoring Of Aging Aircraft And Skin Cancer Detection, Kapil Gupta

Doctoral Dissertations

"Data fusion is generally practiced to enhance decision or inference making capability. Sensor and information source data may often be corrupted by noise or other factors. Data fusion can be used to improve sensor and/or information source data quality and reliability and improve detection accuracy. There are several types of data fusion, including raw data level, feature level, and decision level.

This work presents the investigation and development of image and signal processing, computational intelligence, fuzzy logic, and statistical techniques for different types of data fusion for a varied range of applications. Raw data and decision level fusion approaches are …


Inductive Learning Of Quantum Behaviors, Marek Perkowski, Martin Lukac Jan 2007

Inductive Learning Of Quantum Behaviors, Marek Perkowski, Martin Lukac

Electrical and Computer Engineering Faculty Publications and Presentations

In this paper studied are new concepts of robotic behaviors - deterministic and quantum probabilistic. In contrast to classical circuits, the quantum circuit can realize both of these behaviors. When applied to a robot, a quantum circuit controller realizes what we call quantum robot behaviors. We use automated methods to synthesize quantum behaviors (circuits) from the examples (examples are cares of the quantum truth table). The don’t knows (minterms not given as examples) are then converted not only to deterministic cares as in the classical learning, but also to output values generated with various probabilities. The Occam Razor principle, fundamental …


Search For Universal Ternary Quantum Gate Sets With Exact Minimum Costs, Marek Perkowski, Normen Giesecke, Dong Hwa Kim, Sazzad Hossain Jan 2007

Search For Universal Ternary Quantum Gate Sets With Exact Minimum Costs, Marek Perkowski, Normen Giesecke, Dong Hwa Kim, Sazzad Hossain

Electrical and Computer Engineering Faculty Publications and Presentations

The choice of the best set of universal ternary gates for quantum circuits is an open problem. We create exact minimum cost ternary reversible gates with quantum multiplexers using the method of iterative deepening depth-first search (IDDFS) [25]. Such search is better for small problems than evolutionary algorithms or other search methods. Several new gates that are provably exact minimum cost have been discovered. These gates are next used as library building blocks in the minimization of larger ternary quantum circuits like highly testable GFSOP cascades [15,16] (that generalize ESOP) as well as the wave cascades [24] generalized to ternary …


Realization Of Incompletely Specified Functions In Minimized Reversible Cascades, Marek Perkowski, Manjith Kumar, Bala Iyer, Natalie Metzger, Ying Wang Jan 2007

Realization Of Incompletely Specified Functions In Minimized Reversible Cascades, Marek Perkowski, Manjith Kumar, Bala Iyer, Natalie Metzger, Ying Wang

Electrical and Computer Engineering Faculty Publications and Presentations

There is a need to convert non-reversible functions to their corresponding reversible functions to be realized as reversible cascades. The original MMD (D.M.Miller, D. Maslov, and G.W.Dueck) algorithm for synthesis of reversible functions using cascades of reversible gates [1] can be modified to allow for the inclusion of “don't cares” within the given function's truth table (reversible or irreversible). This was achieved in the approach presented, by first initializing the “don't cares” to binary values, synthesizing the network using the base MMD algorithm, comparing the cost, and iterating to find an implementation with the smallest possible cost. The “don't care” …


Bismuth Surfactant Effects For Gaasn And Beryllium Doping Of Gaasn Grown By Molecular Beam Epitaxy, Ting Liu Jan 2007

Bismuth Surfactant Effects For Gaasn And Beryllium Doping Of Gaasn Grown By Molecular Beam Epitaxy, Ting Liu

Graduate Theses, Dissertations, and Problem Reports (ETD)

Bi was investigated as a possible surfactant for growth of GaAs1-xNx layers on (100) GaAs substrates by molecular beam epitaxy using an RF plasma nitrogen source. Bi extends the useable growth conditions producing smoother surfaces to a significantly higher N content than without Bi. The conductivity of Be-doped GaAsN decreased significantly with increasing N concentration. Temperature dependent Hall measurement suggests possible compensation and increased activation energy. SIMS and Raman measurements indicate that the N composition increased by introducing Be, and for low [N], Bi. The addition of Bi during growth of Be-doped GaAsN only produced semi-insulating layers.

GaAs1-xNx layers and …


Monolithic Integration Of High-Aspect-Ratio Microstructures With Cmos Circuitry, Tinghui Xin Jan 2007

Monolithic Integration Of High-Aspect-Ratio Microstructures With Cmos Circuitry, Tinghui Xin

LSU Doctoral Dissertations

This work involves developing processing techniques for monolithically integrating a high-aspect-ratio microstructures with CMOS circuitry. A microsystem comprising of a microprobe array and signal processing circuitry is utilized as a test vehicle to demonstrate this fabrication process. One potential application of this microsystem is for recording neural signals from the central nervous system. The main results include thick photoresist processing, DC and pulse electroplating to form high-aspect-ratio microprobes, microprobe sharpening and developing a post-IC monolithic integration process. SU-8 is utilized for thick photoresist application. This work focuses on realization of a deep microrecess array in thick resists rather than traditional …


C-Fos As A Proapoptotic Agent In Trail-Induced Apoptosis In Prostate Cancer Cells, Xiaoping Zhang, Liang Zhang, Hongmei Yang, Xu Huang, Hasan H. Otu, Towia A. Libermann, William C. Dewolf, Roya Khosravi-Far, Aria F. Olumi Jan 2007

C-Fos As A Proapoptotic Agent In Trail-Induced Apoptosis In Prostate Cancer Cells, Xiaoping Zhang, Liang Zhang, Hongmei Yang, Xu Huang, Hasan H. Otu, Towia A. Libermann, William C. Dewolf, Roya Khosravi-Far, Aria F. Olumi

Department of Electrical and Computer Engineering: Faculty Publications

Tumor necrosis factor–related apoptosis-inducing ligand (TRAIL)/Apo-2L promotes apoptosis in cancer cells while sparing normal cells. Although many cancers are sensitive to TRAIL-induced apoptosis, some evade the proapoptotic effects of TRAIL. Therefore, differentiating molecular mechanisms that distinguish between TRAIL-sensitive and TRAIL-resistant tumors are essential for effective cancer therapies. Here, we show that c-Fos functions as a proapoptotic agent by repressing the antiapoptotic molecule c-FLIP(L). c-Fos binds the c-FLIP(L) promoter, represses its transcriptional activity, and reduces c-FLIP(L) mRNA and protein levels. Therefore, c-Fos is a key regulator of c-FLIP(L), and activation of c-Fos determines whether a cancer cell will undergo cell death …


Serum Proteome Profiling Detects Myelodysplastic Syndromes And Identifies Cxc Chemokine Ligands 4 And 7 As Markers For Advanced Disease, Manuel Aivado, Dimitrios Spentzos, Ulrich Germing, Gil Alterovitz, Xiao-Ying Meng, Franck Grall, Aristoteles A. N. Giagounidis, Giannoula Klement, Ulrich Steidl, Hasan H. Otu, Akos Czibere, Wolf C. Prall, Christof Iking-Konert, Michelle Shayne, Marco F. Ramoni, Norbert Gattermann, Rainer Haas, Constantine S. Mitsiades, Eric T. Fung, Towia A. Libermann Jan 2007

Serum Proteome Profiling Detects Myelodysplastic Syndromes And Identifies Cxc Chemokine Ligands 4 And 7 As Markers For Advanced Disease, Manuel Aivado, Dimitrios Spentzos, Ulrich Germing, Gil Alterovitz, Xiao-Ying Meng, Franck Grall, Aristoteles A. N. Giagounidis, Giannoula Klement, Ulrich Steidl, Hasan H. Otu, Akos Czibere, Wolf C. Prall, Christof Iking-Konert, Michelle Shayne, Marco F. Ramoni, Norbert Gattermann, Rainer Haas, Constantine S. Mitsiades, Eric T. Fung, Towia A. Libermann

Department of Electrical and Computer Engineering: Faculty Publications

Myelodysplastic syndromes (MDS) are among the most frequent hematologic malignancies. Patients have a short survival and often progress to acute myeloid leukemia. The diagnosis of MDS can be difficult; there is a paucity of molecular markers, and the pathophysiology is largely unknown. Therefore, we conducted a multicenter study investigating whether serum proteome profiling may serve as a noninvasive platform to discover novel molecular markers for MDS. We generated serum proteome profiles from 218 individuals by MS and identified a profile that distinguishes MDS from non-MDS cytopenias in a learning sample set. This profile was validated by testing its ability to …


Vacuum Ultraviolet Optical Analysis Of Spin-Cast Chitosan Films Modified By Succinic Anhydride And Glycidyl Phenyl Ether, W. H. Nosal, D. W. Thompson, T. E. Tiwald, S. Sarkar, Anuradha Subramanian, John A. Woollam Jan 2007

Vacuum Ultraviolet Optical Analysis Of Spin-Cast Chitosan Films Modified By Succinic Anhydride And Glycidyl Phenyl Ether, W. H. Nosal, D. W. Thompson, T. E. Tiwald, S. Sarkar, Anuradha Subramanian, John A. Woollam

John A. Woollam Publications

Optical properties of spin-cast chitosan films were determined in the vacuum ultraviolet (VUV) through visible regions of the spectrum using spectroscopic ellipsometry. The onset of absorption in the ultraviolet was determined for chitosan films modified with succinic anhydride (SA) and glycidyl phenyl ether (GPE). This absorption was accounted for by including Gaussian and Tauc– Lorentz shaped oscillators in the optical model. VUV through visible optical constants were determined for these modified films, as well as for immunoglobulin G (IgG) attached to GPE-modified samples. Several resonant oscillator structures exhibit greatly differing oscillator parameters for the as-deposited, as well as SA-and GPE-modified …