Digital Commons Network^™

Improved Aperture For Modulation Transfer Function Measurement Of Detector Arrays Beyond The Nyquist Frequency, Alfred D. Ducharme, Sarah P. Temple

Faculty Bibliography 2000s

The design of an aperture for the generation of laser speckle with a flat power spectrum covering a wide band of the measurement spatial-frequency range is presented. This aperture allows for the measurement of modulation transfer function (MTF) from zero to twice the Nyquist frequency of a two-dimensional detector array. This design mitigates many of the measurement problems inherent in other aperture designs. The MTF measurement of a CCD detector array is used to demonstrate the measurement technique and illustrate the advantages of the new aperture design.

Metal Modulation Epitaxy Growth For Extremely High Hole Concentrations Above 10(19) Cm(-3) In Gan, Gon Namkoong, Elaissa Trybus, Kyung Keun Lee, Michael Moseley, W. Alan Doolittle, David C. Look

Applied Research Center Publications

The free hole carriers in GaN have been limited to concentrations in the low 10¹⁸ cm⁻³ range due to the deep activation energy, lower solubility, and compensation from defects, therefore, limiting doping efficiency to about 1%. Herein, we report an enhanced doping efficiency up to ~10% in GaN by a periodic doping, metal modulation epitaxy growth technique. The hole concentrations grown by periodically modulating Ga atoms and Mg dopants were over ~1.5 x 10¹⁹ cm⁻³.

© 2008 American Institute of Physics.

Unit Rectangle Visibility Graphs, Alice M. Dean, Joanna A. Ellis-Monaghan, Sarah J. Hamilton, Greta Pangborn

Mathematics, Statistics and Computer Science Faculty Research and Publications

Over the past twenty years, rectangle visibility graphs have generated consider- able interest, in part due to their applicability to VLSI chip design. Here we study unit rectangle visibility graphs, with fixed dimension restrictions more closely modeling the constrained dimensions of gates and other circuit components in computer chip applications. A graph G is a unit rectangle visibility graph (URVG) if its vertices can be represented by closed unit squares in the plane with sides parallel to the axes and pairwise disjoint interiors, in such a way that two vertices are adjacent if and only if there is a non-degenerate …

Arkansas Water Resources Center Annual Technical Report, 2007, Arkansas Water Resources Center

Arkansas Water Resources Center Annual Report

No abstract provided.

Book Review Of 'The Origins Of Himalayan Studies: Brian Houghton Hodgson In Nepal And Darjeeling, 1820-1858' Edited By David M. Waterhouse, Arjun Guneratne

HIMALAYA, the Journal of the Association for Nepal and Himalayan Studies

No abstract provided.

Central Bank Of Nigeria Annual Report And Statement Of Accounts For The Year Ended 31st December 2007, Central Bank Of Nigeria

CBN Annual Report

In 2007, the Central Bank of Nigeria (CBN) faced significant challenges in monetary management due to statutory allocations to government tiers, autonomous foreign exchange inflows, and pre-election spending. These challenges were addressed through Open Market Operations (OMO), issuance of treasury securities, standing facilities, and foreign exchange swaps. The introduction of the monetary policy rate (MPR) in December 2006 moderated inter-bank rates, encouraged trading, and improved the transmission of monetary policy actions. The Bank intensified its non-regular management activities to ensure the Policy Support Instrument (PSI) target was met. The financial system at end-2007 comprised the CBN, the Nigeria Deposit Insurance …

Pendugaan Parameter Regresi Logistik Dengan Jaringan Syaraf Tiruan, Anik Djuraidah

PYTHAGORAS : Jurnal Matematika dan Pendidikan Matematika

Logistic regression can be mapped equivalent to artificial neural network (ANN) without hidden layer with logistic as activation function, hence logistic regression is subset of ANN. The result study on binary and poly-chotomous response data show that parameter estimation values of ANN and logistic regression are similar. In comparison with ANN, logistic regression has standard procedure for estimation and testing parameter.
Keyword : logistic regression, generalized linear model, artificial neural network, activation function, hidden layer

Masalah Norm Minimum Pada Ruang Hilbert Dan Aplikasinya, Karyati Karyati, Dhoriva Urwatul Wutsqa

PYTHAGORAS : Jurnal Matematika dan Pendidikan Matematika

In this paper, will be discussed about the minimum norm in the pre- Hilbert Space, Hilbert space and its modification, and its application. The results are: Let X be a pre-Hilbert space and M is a sub space of X. If an element is fixed, then : . If there is such that , then is unique. Let H be a Hilbert space and M be a closed sub space of H . If , then there is a unique element such that , . Let X be a Hilbert space , M be a closed sub space of X …

Inversi Dan Titik-Titik Harmonis, Himmawati Puji, Caturiyati Caturiyati

PYTHAGORAS : Jurnal Matematika dan Pendidikan Matematika

Given a circle centre O and radius r in , the inversion in this circle is the mapping defined by , where lies on the straight line through O and A, and on the same side of O as A, and . It will be investigated the property of inversion related to four harmonic points. The result is that the cross-ratio of any four coplanar points A, B, C, D is invariant under inversion. Hence, the inversion preserves the four harmonic points.
Keywords : inversion, cross ratio, four harmonic points.

On The Convergence Theorems Of The Mcshane Integral For Riesz-Spaces-Valued Functions Defined On Real Line, Muslim Ansori, Yosephus D. Sumanto, Novi Rustiana Dewi

PYTHAGORAS : Jurnal Matematika dan Pendidikan Matematika

This paper is a partial result of our researchs in the main topic "On The McShane Integral for Riesz-Spaces-valued Functions Defined on the space ". We have constructed McShane integral for Riesz-spaces-valued functions defined on the space by a technique involving double sequences and proved some basic properties which coincides with the McShane Integral for Banach-spaces valued functions defined on real line. Further, we construct some convergence theorems involving uniformly convergence theorems, monotone convergence theorems and Fatou's lemma in the sense of this integral.
Keywords : Riesz Space, McShane Integral

Menghitung Nilai Probabilitas Pada Distribusi Normal Multivariate, Jaka Nugraha

PYTHAGORAS : Jurnal Matematika dan Pendidikan Matematika

Menghitung nilai probabilitas variabel random yang mempunyai distribusi multivariat normal, merupakan salah satu kendala dalam model probit. Persamaan probabilitas dalam model probit tidak berbentuk persamaan tertutup dan harus diselesaikan secara numerik maupun simulasi. Metode Gezn merupakan metode yang paling efektif untuk menghitung nilai probabilitas normal multivariat. Metode ini banyak diimplementasikan dalam beberapa "package" pada program R. Metode ini juga telah diimplementasikan dalam model multinomial probit yang populer disebut dengan simulator Geweke-Hajivassiliou-Keane (GHK).
Kata kunci : model multinomial probit, faktor Cholesky, random utiliti, deret Taylor

Identity Politics Among Dalits In Nepal, Steven Folmar

HIMALAYA, the Journal of the Association for Nepal and Himalayan Studies

No abstract provided.

Conference Abstracts

HIMALAYA, the Journal of the Association for Nepal and Himalayan Studies

No abstract provided.

Buffer Projects In The Town Of Wakefield And City Of Somersworth, Julie Labranche

PREP Reports & Publications

Participants in the Wakefield Buffer Project include SRPC staff, members of the Acton Wakefield Watershed Alliance (AWWA), local board and commission members, and the Wakefield Town Planner, Kathy Menici. AWWA members included: Linda Schier, Carol Lafond, Marge Kimball and Adam Soukimas. Town Staff included Joe Fluet (Planning board Chair) and Nancy Spencer Smith (Conservation Commission). The goals of AWWA are to educate and inform shoreland property owners about the harmful effects of erosion and uncontrolled stormwater runoff on water quality of its lakes and ponds. AWWA focuses their on- the-ground efforts to repair, restore and preserve healthy functioning buffers and …

Fair Trade Organic Tea Production And Women's Political Futures In Darjeeling, India, Debarati Sen

HIMALAYA, the Journal of the Association for Nepal and Himalayan Studies

No abstract provided.

Book Review Of 'The Dalit Nepali Social Movement' By Yam Bahadur Kisan, Rama Lohani-Chase

HIMALAYA, the Journal of the Association for Nepal and Himalayan Studies

No abstract provided.

A Mixed-Methods Investigation Of Community Attachment In Rural Romania, Natalia Buta, Mark A. Brennan, Stephen M. Holland

Journal of Rural Social Sciences

This article explores the intricacies of community attachment using a multidimensional construct; attachment to the social and natural environment. A central focus is to assess whether attachment to the social and natural environment are distinctively predicted by length of residence, social interaction, and sociodemographic characteristics. Furthermore, this work elaborates on current understandings of community attachment by qualitatively exploring feelings of attachment toward the place of residence. All are explored in the context of rural Romania and communities managing the natural resources available to them. The results show the effect of several independent variables on attachment to social and natural environments. …

The Impact Of Rural-Urban Migration On Plantation Agriculture In The Niger Delta Region, Nigeria, Albert Ukaro Ofuoku, Christopher Okeleke Chukwuji

Journal of Rural Social Sciences

This study was carried out to unveil the impact of rural-urban migration on plantation agriculture productivity in the Niger-Delta Region of Nigeria. Data were collected from 660 rural households and managers/supervisors of 15 selected oil palm, rubber, and cocoa plantations in the Niger-Delta Region. Descriptive statistics and multiple regression analysis were used to analyze the data. Most migrants were able bodied young adults. Labor shortage was experienced by all the visited plantations. Due to labor shortages, most of the plantations could not harvest completely. This resulted in foregone revenue for the plantations. Rural-urban migration significantly and positively correlated with labor …

The Texture Of Local Disaster Response: Service Providers' Views Following Hurricane Katrina, John J. Green, Anna M. Kleiner, Jolynn P. Montgomery

Journal of Rural Social Sciences

Disasters highlight elements of community vulnerability and resiliency. Effective responses are organized and managed to provide goods and services to survivors while also being supportive of the organizations attempting to meet these needs. Collaboration among local service providers, such as nonprofit, faith-based, and governmental organizations, allows communities to build upon internal and external networks and resources to prepare for and respond to disasters. Using a livelihoods framework, we analyze 139 qualitative field interviews conducted in the Mississippi Gulf Coast and Southeast Louisiana, to learn from the experiences, needs, and recommendations of people working on the front lines of disaster in …

Disaster Recovery In Rural Communities: A Case Study Of Southwest Louisiana, Deborah Tootle

Journal of Rural Social Sciences

This paper provides a descriptive case study to develop a better understanding of the disaster recovery and rebuilding process in the three parishes (counties) in South Louisiana that were hardest hit by Hurricane Rita in 2005. The data come from a number of sources: official documents, news articles, published data, and personal observations. This case study’s implications raise questions about current approaches to disaster recovery. It also suggests strategies for practice, program development, and policy.

Risk Perceptions After A Coal Waste Impoundment Failure: A Survey Assessment, Stephanie Mcspirit, Shaunna Scott, Duane Gill, Sharon Hardesty, Dewayne Sims

Journal of Rural Social Sciences

In mid October of 2000, a rupture occurred at the bottom of a coal waste reservoir owned by Martin County Coal Corporation (MCCC-Massey). Impounded slurry and sludge materials from the reservoir traveled through underground mine works and burst through two mine portals on opposite sides of the mountain releasing more than 300 million gallons of coal waste into creeks and waterways of Martin County, KY. This paper examines people’s reactions to the Martin County coal waste disaster by examining levels of reported concern and perceptions of risk across the impacted community of Martin County in comparison to similar coal mining …

Quality Of Life On The Agricultural Treadmill: Individual And Community Determinants Of Farm Family Well-Being, J. Gordon Arbuckle Jr., Chris Kast

Journal of Rural Social Sciences

Individual quality of life (QOL) is a critical foundation of stable and cohesive societies. This research examines QOL among Iowa farmers, who as a group have seen their numbers decline precipitously over the past decades as the farm economy has undergone major restructuring processes. Farm families are nested in rural communities, many of which have also experienced persistent population loss and economic decline over the same period. A multilevel modeling approach is employed to examine determinants of subjective QOL over time, using 29 years of longitudinal data. Results point to positive relationships between household income, community vitality, and farm family …

Congenital Right Coronary Artery Fistula, Hilal Alsabti, Madan M. Maddali

Sultan Qaboos University Medical Journal

No abstract provided.

Ewing V. State Clerk's Record V. 1 Dckt. 34541

Idaho Supreme Court Records & Briefs, All

No abstract provided.

Marketing In Liner Shipping : Current Practices And Suggestions For Introducing New Marketing Tools To The Industry, Sandra S. G. Haddad

World Maritime University Dissertations

No abstract provided.

An Argument For Joint Custody As An Option For All Family Court Mediation Program Participants, Joy S. Rosenthal

City University of New York Law Review

No abstract provided.

Hyperbaric Oxygen Treatment For Osteomyelitis, Osteoradionecrosis And Recurrent Ear Infections, Susie Debus

Sultan Qaboos University Medical Journal

No abstract provided.

Optimization Of Optical Computed Tomography Techniques For The Synthesis Of Particle Aggregate Models, Patrick Anthony Giordano Jr.

Theses and Dissertations

The characterization of 3-D shapes of particles in geomaterial aggregate mixtures is important for understanding the micro-mechanics of granular materials. Also, numerical synthesis of 3-D particle shapes from their corresponding shape descriptors is required for developing discrete element models (DEMs) that can be used to predict particle contact-forces, and ultimately the shear strength of the aggregate mixture.

Previous work has shown that Fourier-based 3-D shape descriptors can be constructed for aggregate mixtures, using a statistical combination of 2-D projections. Furthermore, optical tomography methods using the Algebraic Reconstruction Technique (ART) algorithm has proved capable of synthesizing 3-D shapes from 2-D projections, …

Interactive Visualization Of Information Hierarchies And Applications On The Web, Confesor Santiago Iii

Theses and Dissertations

The visualization of information hierarchies is concerned with the presentation of abstract hierarchical information about relationships between various entities. It has many applications in diverse domains such as software engineering, information systems, biology, and chemistry. Information hierarchies are typically modeled by an abstract tree, where vertices are entities and edges represent relationships between entities. The aim of visualizing tree drawings is to automatically produce drawings of trees which clearly reflect the relationships of the information hierarchy.

This thesis is primarily concerned with problems related to the automatic generation of area-efficient grid drawings of trees, interactively visualizing information hierarchies, and applying …

Predicting The Success Of Invasive Species In The Great Bay Estuarine Researve, Jennifer A. Dijkstra, Larry G. Harris

PREP Reports & Publications

The University of New Hampshire Zoology Department reports on a study designed to continue monitoring the distribution of invasive species in the Great Bay Estuary and to carry out laboratory experiments designed to test the effects of salinity on ascidian mortality and determine predators of ascidian species. Researchers collected presence/absence and abundance data of invasive species at four sites within the Great Bay Estuarine System. The report gives a brief description of the results of the monitoring program to compare results obtained from 2006 to 2007 and to assess the response of ascidians to varying salinity and predators. This report …