Digital Commons Network^™

Development Of A Novel Double Neural Network And Its Applications, Hao Chen

Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)

Artificial neural network model is a powerful method that has been widely applied in many different areas. It is essentially a nonlinear statistical model, empirically proved with good prediction accuracy, and has been applied in both regression and classification problems. One challenge in applying artificial neural network models is constructing proper structure adaptive to specific problems. This thesis work is to introduce a novel, double-layered feed-forward neural network (DNN) model with special link patterns. Its applications to genome-wide association studies and stock price prediction in high frequency time scale have been explored. Detecting gene-gene interactions in traditional Genome-wide associate studies …

Development Of Novel Nuclear Imaging Systems For Bioscience Applications, Tuoyu Cao

Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)

Biological systems are incredibly complex and their scientific study can be facilitated by the assessment of multiple independent parameters from the same location, ideally in way that provides quantitative and time-synchronized data, with high spatial sampling, and throughout a living subject. Our group has advanced this in vivo, quantitative, multimodal imaging approach by developing and combining various nuclear imaging modalities that provide complementary data to better understand the physiology of humans, animal models, and even plants. Multi-modality imaging in clinical and pre-clinical settings has been shown to provide better diagnostic interpretation compared to stand-alone imaging systems. In recent years, combining …

Hemodynamic Analysis Of Fast And Slow Aneurysm Occlusions By Flow Diversion In Rabbits, Bong Jae Chung, Fernando Mut, Ramanathan Kadirvel, Ravi Lingineni, David F. Kallmes, Juan R. Cebral

Department of Applied Mathematics and Statistics Faculty Scholarship and Creative Works

Purpose: To assess hemodynamic differences between aneurysms that occlude rapidly and those occluding in delayed fashion after flow diversion in rabbits. Methods: Thirty-six elastase-induced aneurysms in rabbits were treated with flow diverting devices. Aneurysm occlusion was assessed angiographically immediately before they were sacrificed at 1 (n=6), 2 (n=4), 4 (n=8) or 8 weeks (n=18) after treatment. The aneurysms were classified into a fast occlusion group if they were completely or near completely occluded at 4 weeks or earlier and a slow occlusion group if they remained incompletely occluded at 8 weeks. The immediate post-treatment flow conditions in aneurysms of each …

Perceived Vs. Actual Distance To Transit In Santiago, Chile, Diego Hernández, Regina Witter

Journal of Public Transportation

To plan public transport supply and to increase transit patronage, it is indispensable to be aware of people’s perception of the actual supply, that is, how extensive and accurate people’s knowledge is regarding the concrete features of transport supply, such as the locations of transit stops, timetables, and fare structures. This paper addresses the gap between the perceived and real distances to transit stops. The comparison between the real and perceived supply shows a considerably accurate perception. Nevertheless, a pattern is apparent. Metro supply has a higher overestimation rate than buses, i.e., walking distances are perceived as significantly shorter than …

Full Issue 18(4)

Journal of Public Transportation

No abstract provided.

The Search For Exomoon Radio Emissions, Joaquin P. Noyola

Physics Theses - Archive

The field of exoplanet detection has seen many new developments since the discovery of the first exoplanet. Observational surveys by the NASA Kepler Mission and several other instrument have led to the confirmation of over 1900 exoplanets, and several thousands of exoplanet potential candidates. All this progress, however, has yet to provide the first confirmed exomoon. Since all previous attempts to discover exomoons have failed, a novel method to detect them is proposed in this dissertation, which describes development of the method and its applications to select the best exomoon candidates for observational searches. The main goal of these searches …

Theoretical Prediction Of Materials For Efficient Conversion Of Solar Energy, Pranab Sarker

Physics Dissertations - Archive

Our present work represents a systematic theoretical and computational research to find an affordable material for solar energy application using density functional theory (DFT) and post-DFT such as DFT+U and DFT-HSE06. Here, we predict a new photovoltaic material (CuSnW2O8) and a new photocatalyst (ZnSnW2O8). In addition, a new method for predicting the higher power conversion efficiency (PCE) optimized growth conditions will be presented. It is well known that all physical properties are calculated once crystal structure is known. However, knowing crystal structure is extremely challenging and to date, there is no success has been claimed in the case of a …

Green Criminological Concerns & Philosophical Beliefs, Alexander Allen Anderson

Criminology & Criminal Justice Theses - Archive

The purpose of this research project was to test the philosophical argument that people who maintained a dualistic mindset or sustained a belief in the existence of the soul would be less concerned with environmental crime. A survey was collected from a sample of 332 individuals at the University of Texas at Arlington in Arlington, Texas. The survey asked individuals to select on a likert scale how concerned they were with environmental harm. Preceding these, individuals were asked to answer either yes, no, or I don’t know on questions concerning their philosophical beliefs, looking for indicators of dualistic thinking and …

Structure-Activity Relationships Of Ruthenium(Ii) Polypyridyl Complexes With Redox-Active Intercalating Ligands: Correlation Between Redox Activity, Dna Cleavage Capability And Cytotoxicity, Eugenia Soyo Narh

Chemistry & Biochemistry Theses - Archive

The investigation and development of transition metal complexes as cancer chemotherapeutics has gained a lot of interest in the past few decades and has become a promising area of research. Metal complexes of platinum and ruthenium in particular that have demonstrated success as anticancer drugs or are under exploration currently for clinical use are highlighted in Chapter 1. Chapter 2 describes studies undertaken to understand the neurotoxicity of ruthenium(II) polypyridyl complexes (RPCs), including toxicity in mice and inhibition of the enzyme acetylcholinesterase (AChE), as previous work by Dwyer demonstrated that RPCs could be acutely toxic in mice, presumably due to …

Synthesis Of Modified Ribose Spin-Label, Ke-Wei Chang

Chemistry & Biochemistry Theses - Archive

Transfer ribonucleic acids (tRNAs) from all organisms contain modified nucleosides, which are derived from four different nucleosides. Research has indicated that tRNA modifications affect translation and various metabolic pathways. Among these modifications, some of them need more than one enzyme to produce specific nucleosides. Researchers are interested in investigating the fundamental mechanisms and function of post-transcriptional modifying enzymes. A number of these enzymes are metal-dependent, such as MiaB and MiaE. MiaE enzyme (2-methylthio-N6-isopentenyl-adenosine(37)-tRNA monooxygenase) stereospecifically hydroxylates an adeonosine derivative at the 37th position of tRNA, ms2i6A37, to complete the hypermodification of 2-methylthio-N6-(4-hydroxyisopentenyl)-adenosine (ms2io6A37). Several studies showed that the ms2io6A37 modification …

H.265 (Hevc) Bitstream To H.264 (Mpeg 4 Avc) Bitstream Transcoder, Deepak Hingole

Electrical Engineering Theses - Archive

With every new video coding standard the general rule of thumb has been to maintain same video quality at a reduced bit rate of about 50% as compared to the previous standard. H.265 is the latest video coding standard with support for encoding videos with wide range of resolutions, starting from low resolution to beyond High Definition i.e. 4k or 8k. H.265 also known as HEVC was preceded by H.264 which is very well established and widely used standard in industry and finds its applications in broadcast, storage, multimedia telephony. Currently almost all devices including low power handheld mobile devices …

Sparse Signal Reconstruction In Linear Inverse Scattering Problem, Tanmoy Bhowmik

Electrical Engineering Theses - Archive

Proper mathematical modeling of inverse scattering problem is of utmost importance in applications such as optical imaging and microscopy, radar, acoustic, seismic and medical imaging. However, the problem is non-linear and ill-posed due to the diffusive nature of wave propagation through the scattering medium. Born and Rytov approximation are two widely used techniques to linearize the inverse scattering problem that simplifies the mathematics and modeling of wave propagation through scattering medium in special cases. The linear inverse scattering problem is still severely ill-posed and hence, in general, the solution is not stable and unique, unless a priori knowledge about the …

A High Frequency Memristor Emulator Circuit, Manu Chilukuri

Electrical Engineering Theses - Archive

In this thesis, a low power, high frequency memristor emulator has been designed. The purpose of emulator circuit is to mimic the behavior of a memristor. The circuit consists of a summing amplifier, an integrator and a multiplier. The circuit has been implemented using commercial off the shelf (COTS) components in Keysight ADS simulation tool. For CMOS implementation, the emulator circuit has been designed using IBM 0.18um technology. The design of each circuit has been explained in this work. The Opamp designed achieves a gain of 89 dB, output swing of 1.584V and a bandwidth of 3.67 MHz. The circuit …

Siguria E Rrjetave Kompjuterike, Blinera Ahmeti

Theses and Dissertations

Shpërndarja e internetit në përmasa më të mëdha filloi në fillim të viteve 1980. Qysh në këtë fillim lindi edhe nevoja për sigurinë e rrjetave kompjuterike, menjëherë pas shfaqjes së sulmeve të para që shkaktuan dëme në informacionet dhe sistemet kompjuterike. Ndryshimet shumë të shpejta në botën e kompjuterikës, aplikacioneve mobile dhe rrjetave pa kabllo kanë ndryshuar plotësisht tiparet e sigurisë së rrjetave. Qysh nga ajo kohë, sado që ka pasur zhvillime tepër të mëdha në botën e internetit, ende ka shumë ngecje në zhvillimin e metodave të sigurisë së rrjetave.

Problemet me sigurinë më së lehti dhe më së …

Programimi Paralel Me Gpu, Kujtim Kërqeli

Theses and Dissertations

No abstract provided.

Implementimi Dhe Adaptimi I E-Commerce Në Kompanitë E Vogla Në Zvicër, Drilon Tahiri

Theses and Dissertations

Qëllimi i këtij hulumtimi është të shqyrtojë implementimin dhe adaptimin e e-commerce në kompanitë e vogla në Zvicër . Ky hulumtim përshkruan të gjitha përfitimet dhe pengesat me të cilat ballafaqohen kompanitë e vogla gjatë procesit të implementimit të e-commerce. Një hulumtim cilësor është kryer. Po ashtu është kryer edhe një intervistë me një menaxher të një kompanie të vogël në Zvicër.

Ky studim tregon se kompanitë e vogla në Zvicër kanë përparësi në implementimin dhe adaptimin e e-commerce në krahasim me vendet e tjera të Evropës, por ende ka pengesa të cilat mund të përmirësohen në të ardhmen.

Përfitimet …

Krahasimi I Teknologjive Për Implementimin Dhe Përkrahjen E Videove Në Ueb, Rinor Svarça

Theses and Dissertations

Në këtë punim diplome jemi munduar të analizojmë dy teknologjitë më të përdorura për lansimin e videove në internet Adobe Flash dhe HTML5, edhe pse nuk janë të ngjashme kanë të përbashkët mundësinë e shfaqjes së videove në ueb faqe, ku dhe jemi fokusuar më shumë në këtë të përbashkët të këtyre dy teknologjive. Gjithashtu kemi hulumtuar për historikun, zhvillimin, ngjashmëritë dhe dallimet që kanë, kemi analizuar edhe problemet e tye dhe si ka ardhur deri te zëvendësimi i Flash me HTML5 për një kohë mjaftë të shkurtër. Jemi munduar t’i krahasojmë të gjitha pjesët e përbashkëta dhe kemi paraqitur …

Zgjidhja E Problemeve Të Transportit Në Rrjetat Telekomunikuese Duke Kaluar Në Ran-In E Bazuar Në Ip, Meriton Ahmeti

Theses and Dissertations

Operimi i Radio paisjeve (Antenat) të operatorëve të ndryshëm të telefonisë mobile dhe ndërlidhja e tyre me Rrjetën Bërthamë (Core Network) mundësohet nga RAN (Radio Access Network) i cili jo domosdoshmërisht është i njejtë për operator të ndryshëm mobil.

Përgjatë viteve të zhvillimit të Telekomunikacionit në përgjithesi dhe të Komunikimeve mobile në veçanti, janë zhvilluar teknologji të reja për ta tejkalur problemin e diversitetit në mes të teknologjive të aplikuara në rrjetën e një operatori të telefonisë mobile por edhe për të tejkaluar kufizimet e ndryshme teknike.

Në aspektin e dizajnimit të rrjetës së operatorëve të telefonisë mobile gjithmonë kalimi …

Krahasimi I Cms Platformave, Wordpress Dhe Umbraco Për Ndërtimin E Ueb Faqeve Të Korporatave, Shpëtim Rashiti

Theses and Dissertations

Në ditët e sotme përdorimi i ueb faqeve është shëndruar në një element shumë të rendësishëm për çdo kompani apo korporat, ku për çdo njërën është e rëndësishme që të kenë një ueb faqe përmes së cilës do të mund të prezantonin punën e tyre apo të shisnin produkte online. Këto ueb faqe apo sisteme kanë mjaft shumë përmbajtje dhe kërkojnë punë për tu realizuar për këtë arsye është shumë e rëndësishme që këto ueb faqe të ndërtohen duke përdorur ndonjë CMS (Content Management System) Platformë. Në praktikë egsistojnë mjaft CMS platforma mirëpo në këtë punim ne do të krahasojmë …

Local Government Law, Ken E. Jarrard

Mercer Law Review

No abstract provided.

Hexapod Herald - Vol. 27, No. 5, December 2015

Hexapod Herald and Other Entomology Department Newsletters

Contents: Welcome - Congratulations - Student News - Faculty News - Grants - Publications

Electronic Structure And Insulating Gap In Epitaxial Vo2 Polymorphs, Shinbuhm Lee, Tricia L. Meyer, Changhee Sohn, Donghwa Lee, John Nichols, Dongkyu Lee, Sung S. Ambrose Seo, John W. Freeland, Tae Won Noh, Ho Nyung Lee

Physics and Astronomy Faculty Publications

Determining the origin of the insulating gap in the monoclinic VO₂(M1) is a long-standing issue. The difficulty of this study arises from the simultaneous occurrence of structural and electronic transitions upon thermal cycling. Here, we compare the electronic structure of the M1 phase with that of single crystalline insulating VO₂(A) and VO₂(B) thin films to better understand the insulating phase of VO₂. As these A and B phases do not undergo a structural transition upon thermal cycling, we comparatively study the origin of the gap opening in the insulating VO₂ phases. …

Graduates List - December 2015, University Of Nebraska At Omaha

Commencement Lists

No abstract provided.

Real-Time Digital Effects Processing Using Ios, Jonah W. Clinard

Computer Engineering

In today’s society, we are seeing incredible improvements in terms of creating smaller technological devices that behave more and more like the personal computers of yesterday. Mobile “Smart” devices, in particular, are becoming incredibly powerful not just in terms of processing power, but in the fact that they are able to provide assistance to users in their everyday lives. Application developers are now able utilize the power and size of these devices, to create and realize ideas that would have been previously viewed as impossible. This project applies the fields of digital signal processing, music, and mobile application development, to …

Examining Patterns In Second Graders’ Use Of Virtual Manipulative Mathematics Apps Through Heatmap Analysis, Patricia S. Moyer-Packenham, Stephen Isaac Tucker, Arla Westenskow, Jurgen Symanzik

Teacher Education and Leadership Faculty Publications

This study examined 32 second-grade children’s interactions with six virtual manipulative mathematics apps on the iPad using a novel analysis approach called heatmap analysis. Mathematical topics of the six apps focused on understanding skip counting and place value concepts. Children interacted individually with the apps under the guidance of an interviewer during 30-40 minute clinical interviews. The heatmap analysis revealed patterns in children’s performance on the tasks and suggested individual cases for further analysis. For example, clusters of children showed high or low performance during the skip counting sequence. In the high-performing cluster, one child still struggled to monitor the …

Native Deer Mice (Peromyscus Maniculatus) Use Of Invasive Grass Seed (Ehrharta Calycina) In Coastal California, Megan Wong

Biological Sciences

No abstract provided.

A Study On General Assembly Line Balancing Modeling Methods And Techniques, Bryan Pearce

All Dissertations

The borders of the assembly line balancing problem, as classically drawn, are as clear as any other operations research topic in production planning, with well-defined sets of assumptions, parameters, and objective functions. In application, however, these borders are frequently transgressed. Many of these deviations are internal to the assembly line balancing problem itself, arising from any of a wide array of physical or technological features in modern assembly lines. Other issues are founded in the tight coupling of assembly line balancing with external production planning and management problems, as assembly lines are at the intersection of multiple related problems in …

Cache-Adaptive Algorithms, Roozbeh Ebrahimi Soorchaei

Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)

Memory efficiency and locality have substantial impact on the performance of programs, particularly when operating on large data sets. Thus, memory- or I/O-efficient algorithms have received significant attention both in theory and practice. The widespread deployment of multicore machines, however, brings new challenges. Specifically, since the memory is shared across multiple processes, the effective memory-size allocated to each process fluctuates over time. This dissertation studies algorithms in the context of a memory allocation that changes over time, which we call the cache-adaptive setting. The cache-adaptive model applies to operating systems, databases, and other systems where the allocation of memory to …

The Validation Of An Instrument For Evaluating The Effectiveness Of Professional Development Program On Teaching Online, Jui-Long Hung, Dazhi Yang

Educational Technology Faculty Publications and Presentations

Attending professional development (PD) on teaching online is becoming popular for teachers in today’s K-12 online education. Due to the unique characteristics of the online instructional environments, surveys become the most feasible approach to evaluate the effectiveness of PD programs. However, there is no validated, open-access instrument available to satisfy the needs. Purpose of this study is to conduct construct validity, content validity, concurrent validity, and reliability tests on an open-access instrument for K–12 PD for online teaching. With the exception of a few items that have minor issues on content and construct validity, results show that the survey is, …

Natural Degradation Of Earthworks, Trenches, Walls And Moats, Northern Thailand, Spencer H. Wood, Layle R. Wood, Alan D. Ziegler

Geosciences Faculty Publications and Presentations

“………..structures of this kind are hidden away securely under the thick overgrowth: thus does nature preserve what man would surely destroy” (from Sumet Jumsai, 1970)

We investigate the geometry, age, and history of several enigmatic northern Thailand earthwork entrenchments that are mostly located on hills and could not have held water to form moats. The earthworks are either oval or rectangular in map view; and they typically encircle 0.3-to-1-km² areas that do not have potsherd debris indicative of former towns. Most trenches are 3-5 m deep with inner walls 4.5-8 m high. Some encircling earthworks are concentric double trenches …