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Articles 10501 - 10530 of 21766
Full-Text Articles in Entire DC Network
Analysis And Computation Of A Quadratic Matrix Polynomial With Schur-Products And Applications To The Barboy-Tenne Model, Carrie Lahnovych
Analysis And Computation Of A Quadratic Matrix Polynomial With Schur-Products And Applications To The Barboy-Tenne Model, Carrie Lahnovych
Theses
Quadratic matrix polynomials of the form Y^2 +τ ◦Y = B +τ ◦C , where Y , τ , B, and C are real, symmetric 3x3 matrices and the dot ◦ denotes the Schur product, arise in the Barboy-Tenne equations of statistical mechanics [1]. In this paper we discuss the number of solutions for Y , and devise and implement algorithms solving equations of this form. We will focus our attention on solving the equations in two specific cases and discuss the existence of a solution in the general case.
Design, Development And Simulation Of Sub-Lithographic Process For Patterning Nm Scale Features, Guriqbal Singh Josan
Design, Development And Simulation Of Sub-Lithographic Process For Patterning Nm Scale Features, Guriqbal Singh Josan
Theses
The ability to create sub-lithographic nm-scale features without the need of high-end lithography tools will create new opportunities for the electronics industry. Most current technologies are lithography dependent and inherit associated CD variations. The mainstay of this work is mathematical modeling, simulation and verification of a revolutionary void transfer process for patterning nm scale features originally introduced by Breitwisch et al. at IBM. The technique studied involves intentional creation of voids using a conformal chemical vapor deposition (CVD) followed by controlled etch-back to form nanoscale pores. This method provides features that are independent of lithographically defined parent holes and exhibit …
An Analysis Of The Motto Adduced By Wittgenstein For The Tractatus Logico-Philosophicus, Thomas Patrick Knoten
An Analysis Of The Motto Adduced By Wittgenstein For The Tractatus Logico-Philosophicus, Thomas Patrick Knoten
Theses
ABSTRACT Wittgenstein’s Tractatus Logico-Philosophicus has this motto: “…and whatever a man knows, whatever is not mere rumbling and roaring that he has heard, can be said in three words.” There is a ‘tension’ in the Tractatus between whether or not ethics may be known. I contend that the motto helps resolve this tension and that therein lies its importance. I address, inter alia, the origin of this motto, some philosophical influences on Wittgenstein, the phenomena/noumena distinction and Wittgenstein’s distinction between ‘sense’ and ‘nonsense’. I, then, treat Wittgenstein’s say/show distinction and how the Tractatus beckons not to the poverty of silence …
Scalability Study For Robotic Hand Platform, Melissa Monahan
Scalability Study For Robotic Hand Platform, Melissa Monahan
Theses
The goal of this thesis project was to determine the lower limit of scale for the RIT robotic grasping hand. This was accomplished using a combination of computer simulation and experimental studies. A force analysis was conducted to determine the size of air muscles required to achieve appropriate contact forces at a smaller scale. Input variables, such as the actuation force and tendon return force, were determined experimentally. A dynamic computer model of the hand system was then created using Recurdyn. This was used to predict the contact (grasping) force of the fingers at full-scale, half-scale, and quarter-scale. Correlation between …
Providing Flow Parameters For Approximate Die Design Models And The Improvement And Verification Of Those Models Using Cfd Analysis, Mark Livelli
Theses
The role of a coating die is to distribute a uniform, two dimensional liquid film over a solid surface, often formed as an intermediate step in the manufacturing process of polymeric sheet products. The goal of coating die design is to deliver, with a single die, the largest range of fluid rheologies and flow conditions to within specified uniformity limits. Demanding applications require the film thickness nonuniformity to be as little as one percent across the entire coating surface for acceptable quality of the final product, necessitating optimized design as well as precision manufacturing. There are two principal techniques used …
Low Power Body Sensor Network Design Based On Relaying Of Creeping Waves In The Unlicensed 2.4ghz Band, Adrian E. Sapio
Low Power Body Sensor Network Design Based On Relaying Of Creeping Waves In The Unlicensed 2.4ghz Band, Adrian E. Sapio
Theses
Body Sensor Networks are an important enabling technology for future applications in remote medical diagnostics. Practical deployments of these systems have only recently edged closer to viability, due in part to advances in low power electronics and System-On-Chip devices. Wireless communication between these sensors remains a daunting challenge, and designers typically leverage existing industrial standards designed for applications with significantly different communications requirements. This Thesis proposes a wireless communications platform designed specifically for body mounted sensors, exploiting a phenomenon in electromagnetic wave propagation known as a creeping wave. Relaying of these waves leads to a highly reliable body sensor network …
Wink ; ), Annalisa Iannone
Wink ; ), Annalisa Iannone
Theses
If you were a member of the Match.com community in 2005, you expressed interest in another member by sending them a "wink." If someone online reciprocated interest, they also had the option to "wink" at you. In Match.com parlance, "winking" online established personal connections similar to those achieved in the real world--a wink is a facial gesture used to communicate or connect with another person. My thesis, entitled Wink ; ), sought to engage both the online and real world power of this human signal, as a means to understand how I could be myself--a liberal feminist with a sexual …
An Experimental Investigation Of Presentation Medium–Dependent Differences Of Picture Consumption By College-Aged Adults, Mariela Rodríguez Adames
An Experimental Investigation Of Presentation Medium–Dependent Differences Of Picture Consumption By College-Aged Adults, Mariela Rodríguez Adames
Theses
While digital camera owners are taking more photos than ever before, most of them are not printing the photos. When they do, they only print in small quantities. The reason for this is that most users share their photos online or through e-mail. While fewer people print their images at the moment they are taking them, they are saving the digital files of the photos for future use. In conducting a literature review, a good overview was acquired of the current consumer photographer's practices in taking, sharing, and saving pictures. In addition, a first experiment was set up involving college-aged …
Optimizing Sorting Algorithms For The Cell Broadband Engine, Eric J. Offermann
Optimizing Sorting Algorithms For The Cell Broadband Engine, Eric J. Offermann
Theses
The quest for higher performance in computationally intensive tasks is and will always be an ongoing effort. General purpose processors (GPP) have not been sufficient for many of these tasks which has led to research focused towards computing on specialty processors and graphics processing units (GPU). While GPU provide sufficient speedups for some tasks, other specialty processors may be better suited, more economical, or more efficient for different types of tasks. Sorting is an important task in many applications and can be computationally intensive when dealing with large data sets. One such specialty processor that has proven to be a …
Pond: A Robust, Scalable, Massively Parallel Computer Architecture, Adam Spirer
Pond: A Robust, Scalable, Massively Parallel Computer Architecture, Adam Spirer
Theses
A new computer architecture, intended for implementation in late and post silicon technologies, is proposed. The architecture is a fine-grained, inherently parallel system consisting of a large grid of thousands or millions of simple "atomic processors" (APs) employing a simple instruction set. Each AP is configured as either a program instruction or data storage element. These elements are organized into logical entities, analogous to traditional programming functions/methods and data structures. Programming work is underway to compile and run programs from traditional sequential code where parallelism is automatically discovered at the high level on both instruction level and function level, and …
Robust Control Strategies For Hybrid Solid Oxide Fuel Cell Systems, Tahar Allag
Robust Control Strategies For Hybrid Solid Oxide Fuel Cell Systems, Tahar Allag
Theses
Solid Oxide Fuel Cell (SOFC) systems are electrochemical energy conversion devices characterized by the use of solid oxide as the electrolyte. They operate at high temperatures (between 800± ¡ 1000±C). Mitigating fuel starvation and improving load-following capability of SOFCs are conflicting control objectives. In this thesis, this issue is addressed using a hybrid SOFC ultra-capacitor configuration. The fuel cell is controlled by incorporating a steady-state property of fuel utilization into an input-shaping framework. Two comprehensive control strategies are developed. The first is a Lyapunov-based nonlinear control and the second is a standard H-infinity robust control. Both strategies additionally control the …
Gas-Phase Surface Modification Of Single-Walled Carbon Nanotubes And Polymers, Fei Lu
Gas-Phase Surface Modification Of Single-Walled Carbon Nanotubes And Polymers, Fei Lu
Theses
Gas-phase surface modification is a key technology for the processing and manufacture of many materials. Three experimental methods were used in this research to modify the surfaces: (1) Vacuum UV (VUV) photo-oxidation of single-walled carbon nanotubes (SWNTs) paper, polystyrene and Nafion®-117; (2) Microwave (MW) plasma discharge of an Ar-O2 mixture producing oxygen atoms in the absence of radiation to treat SWNT paper and polystyrene; and (3) UV bromination employing photolysis of gaseous HBr at different wavelengths (253.7 & 184.9 nm and 253.7 nm) to treat SWNT paper and powder. The quantitative and chemical changes in the top 2-5 nm of …
Pho13 Phosphoglycolate Phosphatase From Saccharomyces Cerevisiae (Baker’S Yeast), A Member Of The P-Nitrophenylphosphatase Family Of The Haloalkanoic Acid Dehalogenase (Had) Superfamily, Regina Puts
Theses
The function of phosphoglycolate phosphatase (PGPase) in photosynthetic organisms such as green algae (Chlamydomonas reinhardti) is to recycle the 2-phosphoglycolate that is formed as a by-product of the Calvin cycle. The role of PGPase in nonphotosynthetic organisms is less understood, but one potential role that has been suggested is to remove the 2-phosphoglycolate that is formed as a result of DNA repair. This may be the biological role of PHO13 PGPase in Saccharomyces cerevisiae as well. PHO13 PGPase from S. cerevisiae is a member of the PGPase subfamily within the p-nitrophenylphosphatase (p-NPPase) family, which is within the Haloalkanoic Acid Dehalogenase …
Topological & Network Theoretic Approaches In Hyperspectral Remote Sensing, Ryan H. Lewis
Topological & Network Theoretic Approaches In Hyperspectral Remote Sensing, Ryan H. Lewis
Theses
Hyperspectral remote sensing is a valuable new technology that has numerous com- mercial and scientific applications. For example, it has been used to study crop health, mineral and soil composition, and pollution levels. Hyperspectral imaging also has im- portant military and intelligence applications such as the identification of man-made materials, and detection of chemical and biological plumes. The key mathematical challenges of hyperspectral imaging include image classification, anomaly detection, and target detection. Image classification is the process of grouping pixels into spec- trally similar clusters. This thesis describes a new topological and network-theoretic approach for classifying pixels in hyperspectral image …
A Glimpse Beyond The Real, Bradley Butler
A Glimpse Beyond The Real, Bradley Butler
Theses
This thesis demonstrates my desire to embrace the unknown and examine the boundaries between what is perceived as being real or imagined in my everyday life. This is accomplished through a series of abstract paintings, which utilize peripheral and fleeting images made through a process of intuitive push and pull of paint and drawing media on canvas. In the document surrealism is talked about and linked to my own practice as an artist. The following artists are also mentioned in relation to this series of work: Salvador Dalí, Joan Miró, Willem de Kooning, Pat Steir, and Anselm Kiefer. The compositions …
Transclusion Of Document Fragments From Dynamic Text, Manu Choudhury
Transclusion Of Document Fragments From Dynamic Text, Manu Choudhury
Theses
Transclusion is a concept that allows users to reuse document fragments from different source pages, not by duplicating it, but by including a reference to the original work. Thus, transclusion provides an interesting platform for authors to quote text from other documents in a way such that the quoted text can be compared alongside its original context, and changes in the original document are reflected automatically in the user document. Several researchers have partially implemented transclusion using various techniques and technologies. The issue of transcluding text from a dynamic source page still persists because dynamic content changes have not been …
Impact Of Image Personalization On Response Rate Of Direct Mail Advertising, Dandan Wang
Impact Of Image Personalization On Response Rate Of Direct Mail Advertising, Dandan Wang
Theses
With widespread adoption of full-color digital presses in the commercial printing industry, personalization has been enabled to create one-to-one marketing communication to enhance the effectiveness of print media advertising. Prior researches showed an increase in response rates with data-driven personalized direct mailings. However, the impact of image personalization on response rate of direct mail advertising is still unknown. This research used an experimental design to test the impact of image personalization on response rate of direct mail advertising. A direct mail postcard campaign was created with three levels of personalization (black-and-white name-only personalization, full-color name-only personalization, full-color name and image …
A Place Of Origin, Jessica L. Foley
A Place Of Origin, Jessica L. Foley
Theses
History has always been an interest of mine, whether it was that of other cultures or my own, I have always loved learning about the lives of others. Currently, my work has stemmed from the concept of the forgotten or lost memory and the importance that my heritage and the legacy of my family has upon me. The exploration of this connection between my past and my present has led me to experiment with, not only my knowledge of my own heritage, but also to delve into the history of more traditional methods of expression and creativity. Stemming from this …
Investigation Of Gpgpu For Use In Processing Of Eeg In Real-Time, Dan Brandt
Investigation Of Gpgpu For Use In Processing Of Eeg In Real-Time, Dan Brandt
Theses
The purpose of this thesis was to investigate the use of General Purpose computing on Graphics Processing Units (GPGPU) to process electroencephalogram (EEG) signals in real-time. The main body of this work required the implementation of Independent Component Analysis were investigated: FastICA and JADE. Both were implemented three times: first using M-file syntax to serve as a benchmark, next, as native C code to measure performance of the algorithms when running natively on a CPU, and finally, as GPGPU code using the NVIDIA CUDA C language extension. In previous works, Independent Component Analysis represented the largest roadblock to achieving the …
Spectrally Accurate Initial Data In Numerical Relativity, Nicholas Battista
Spectrally Accurate Initial Data In Numerical Relativity, Nicholas Battista
Theses
Einstein's theory of general relativity has radically altered the way in which we perceive the universe. His breakthrough was to realize that the fabric of space is deformable in the presence of mass, and that space and time are linked into a continuum. Much evidence has been gathered in support of general relativity over the decades. Some of the indirect evidence for GR includes the phenomenon of gravitational lensing, the anomalous perihelion of mercury, and the gravitational redshift. One of the most striking predictions of GR, that has not yet been confirmed, is the existence of gravitational waves. The primary …
Transformations, Tanvi Asher-Jones
Transformations, Tanvi Asher-Jones
Theses
As a designer, my life experiences have influenced my design practice. Over the past decade I have moved from one culture to another and lived through cultural and language adaptations. These transitions have interested me in the issue of transience and how it relates to the role of identity, belonging, and living in a society of global and technological developments. For the past few years I have been working with the idea of fabrics merged with architecture and exploring concerns in relation to the body, memory, temporal, mobility and most recently the environment. This thesis project evolves around the idea …
The Culling, Nikolos Sardos
The Culling, Nikolos Sardos
Theses
The Culling is an animated, short film graduate thesis. It explores ideas of perception by examining an anthropomorphic tribal group of lobsters that live in the fish tank of a New England seafood restaurant. The story is told through the experiences of a new comer to this lobster tribe. It focuses on his reactions to the odd traditions and beliefs of his peers in this new and strange place. The film is a 2D animation that has been produced digitally using various video, audio and animation software. The goal of this paper is to outline the production of this thesis …
The Imagined Collection, A Story, Nancy Knapik
The Imagined Collection, A Story, Nancy Knapik
Theses
Music was the creative inspiration that provided the underlying rhythm to this body of work. It was guided by the concept of ethereal sound materializing into tangible found objects whose attributes included the ability to visually invoke the fleeting emotional memories of the listening experience. This written thesis serves to discuss the philosophies and aesthetic choices these conceptual themes prompted while making the work. It includes an artistic exploration of the fascinating nature of collection and the association between art and memory. The oral defense of the work brought to light the need to address the distinction between the maker …
Demonstrating Landsat's New Potential To Monitor Coastal And Inland Waters, Aaron Gerace
Demonstrating Landsat's New Potential To Monitor Coastal And Inland Waters, Aaron Gerace
Theses
The Operational Land Imager (OLI) is a new Landsat sensor being developed by the joint USGS-NASA Landsat Data Continuity Mission (LDCM) that exhibits the potential to be a state-of-the-art instrument for studying inland and coastal waters. With upgrades such as a new Coastal Aerosol band, 12 bit quantization, and improved signal-to-noise, OLI will be spectrally and radiometrically superior to its predecessors. When considering Landsat's already high 30 meter spatial resolution, coupled with the fact that its data is free to the community, the OLI sensor may prove to be more valuable than any other environmental imaging satellite to date. The …
Scalable Data Clustering Using Gpus, Andrew D. Pangborn
Scalable Data Clustering Using Gpus, Andrew D. Pangborn
Theses
The computational demands of multivariate clustering grow rapidly, and therefore processing large data sets, like those found in flow cytometry data, is very time consuming on a single CPU. Fortunately these techniques lend themselves naturally to large scale parallel processing. To address the computational demands, graphics processing units, specifically NVIDIA's CUDA framework and Tesla architecture, were investigated as a low-cost, high performance solution to a number of clustering algorithms. C-means and Expectation Maximization with Gaussian mixture models were implemented using the CUDA framework. The algorithm implementations use a hybrid of CUDA, OpenMP, and MPI to scale to many GPUs on …
Group-Based Authentication Mechanisms For Vehicular Ad-Hoc Networks, Marshall K. Riley
Group-Based Authentication Mechanisms For Vehicular Ad-Hoc Networks, Marshall K. Riley
Theses
Vehicular ad hoc networks (VANETs) provide opportunities to exchange traffic information among vehicles allowing drivers to not only adjust their routes but also prevent possible collisions. Due to the criticality of exchanged information, message authentication which will not expose the privacy of vehicles is required. The majority of current authentication schemes for VANETs depend primarily on public-key cryptography which brings extra overhead in terms of delay and requires infrastructure support for certificate verification. Symmetric-key based techniques can be more efficient, but they introduce significant key maintenance overheads. Herein, by considering the natural group behavior of vehicle communications, we propose an …
Attitudes Toward Hazaragi, Abedin Jamal
Attitudes Toward Hazaragi, Abedin Jamal
Theses
This study examined the attitudes of young educated Hazaras towards Hazaragi, a politically low-prestigious language spoken in Afghanistan. The instrument included a questionnaire made of Attitude questions and Descriptive questions. The respondents expressed their beliefs about the linguistic entity of Hazaragi, desire to maintain Hazaragi, value of Hazaragi, and domains of use of Hazaragi. The results showed that half of the Hazaras who participated in the study considered Hazaragi to be a language whereas the other half did not. The majority of the participants demonstrated a commitment to maintain Hazaragi and to speak Hazaragi. With regards to domains of use, …
Oxidized Porous Silicon For Localized Formation Of Soi Active Regions, Bharat Veeramachaneni
Oxidized Porous Silicon For Localized Formation Of Soi Active Regions, Bharat Veeramachaneni
Theses
The oxidation of electrochemically etched porous silicon (Si) has demonstrated success in the formation of device quality Localized Silicon on Insulator (L-SOI) for Complementary Metal Oxide Semiconductor (CMOS) applications [1, 2]. A primary advantage of L-SOI formation is the ability to integrate novel device structures and optoelectronics (i.e. optical switches, waveguides) with bulk silicon CMOS. The formation of porous Si can be selective by controlling the Fermi level in areas to be etched or not etched, which is typically done by adjusting the level of doping [1]. An alternative method is to introduce a reversible donor species such as protons …
A Woman's Heart: Masters Thesis, Marylynn Gwatiringa
A Woman's Heart: Masters Thesis, Marylynn Gwatiringa
Theses
A Woman 's Heart is the pairing of two one-act plays to make a statement about women's resilience and their great capacity to forgive and love in the aftermath of a storm. Lynn Nottage's Poof! showcases a woman's plight and her eventual triumph over the hardship, whilst John Cariani's Her Heart continues the journey to show a woman opening up and loving again.
A Novel Variation-Tolerant 9t Sram Design For Nanoscale Cmos, Sreeharsha Tavva
A Novel Variation-Tolerant 9t Sram Design For Nanoscale Cmos, Sreeharsha Tavva
Theses
As the feature sizes decrease, understanding manufacturing variations becomes essential to effectively design robust circuits. Manufacturing variations occur when process parameters deviate from their ideal or expected values, resulting in variations in device characteristics. Variations in the device characteristics cause the circuit to deviate from its expected behavior resulting in circuit instability, performance degradation, and yield loss. Both from an economic and performance standpoint, the yield and performance of Static Random Access Memories (SRAMs) are of great importance to the modern System-on-Chip designs. SRAM bitcells typically employ well-matched, minimum-sized transistors which make them highly sensitive to process variations. To overcome …