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Articles 961 - 990 of 7616
Full-Text Articles in Physical Sciences and Mathematics
Building Fire Emergency Detection And Response Using Wireless Sensor Networks, Yuanyuan Zeng, Sean Og Murphy, Lanny Sitanayah, Tatiana Tabirca, Thuy Truong, Ken Brown, Cormac Sreenan
Building Fire Emergency Detection And Response Using Wireless Sensor Networks, Yuanyuan Zeng, Sean Og Murphy, Lanny Sitanayah, Tatiana Tabirca, Thuy Truong, Ken Brown, Cormac Sreenan
9th. IT & T Conference
Wireless sensor networks (WSNs) provide a low cost solution with respect to maintenance and installation and in particular, building refurbishment and retrofitting are easily accomplished via wireless technologies. Fire emergency detection and response for building environments is a novel application area for the deployment of wireless sensor networks. In such a critical environment, timely data acquisition, detection and response are needed for successful building automation. This paper presents an overview of our recent research activity in this area. Firstly we explain research on communication protocols that are suitable for this problem. Then we describe work on the use of WSNs …
Fast And Robust Techniques For The Euclidean P-Median Problem With Uniform Weights, G J. Lim, J Reese, Allen G. Holder
Fast And Robust Techniques For The Euclidean P-Median Problem With Uniform Weights, G J. Lim, J Reese, Allen G. Holder
Mathematics Faculty Research
We discuss new solution techniques for the p-median problem, with the goal being to improve the solution time and quality of current techniques. In particular, we hybridize the discrete Lloyd algorithm and the vertex substitution heuristic. We also compare three starting point techniques and present a new solution method that provides consistently good results when appropriately initialized.
General Theoretical Description Of N-Body Recombination, Nirav P. Mehta, Seth T. Rittenhouse, J P. D’Incao, J Von Stecher, Chris H. Greene
General Theoretical Description Of N-Body Recombination, Nirav P. Mehta, Seth T. Rittenhouse, J P. D’Incao, J Von Stecher, Chris H. Greene
Physics and Astronomy Faculty Research
Formulas for the cross section and event rate constant describing recombination of N particles are derived in terms of general S-matrix elements. Our result immediately yields the generalized Wigner threshold scaling for the recombination of N bosons. A semianalytical formula encapsulates the overall scaling with energy and scattering length, as well as resonant modifications by the presence of N-body states near the threshold collision energy in the entrance channel. We then apply our model to the case of four-boson recombination into an Efimov trimer and a free atom.
Thermodynamics Of The Quantum Critical Point At Finite Doping In The Two-Dimensional Hubbard Model Studied Via The Dynamical Cluster Approximation, K. Mikelsons, Ehsan Khatami, D. Galanakis, A. Macridin, J. Moreno, M. Jarrell
Thermodynamics Of The Quantum Critical Point At Finite Doping In The Two-Dimensional Hubbard Model Studied Via The Dynamical Cluster Approximation, K. Mikelsons, Ehsan Khatami, D. Galanakis, A. Macridin, J. Moreno, M. Jarrell
Faculty Publications
We study the thermodynamics of the two-dimensional Hubbard model within the dynamical cluster approximation. We use continuous time quantum Monte Carlo as a cluster solver to avoid the systematic error which complicates the calculation of the entropy and potential energy (double occupancy). We find that at a critical filling, there is a pronounced peak in the entropy divided by temperature, S/T, and in the normalized double occupancy as a function of doping. At this filling, we find that specific heat divided by temperature, C/T, increases strongly with decreasing temperature and kinetic and potential energies vary like T2 ln T. These …
Additive Maps Preserving The Reduced Minimum Modulus Of Banach Space Operators, Abdellatif Bourhim
Additive Maps Preserving The Reduced Minimum Modulus Of Banach Space Operators, Abdellatif Bourhim
Mathematics - All Scholarship
Let B(X) be the algebra of all bounded linear operators on an infinite dimensional complex Banach space X. We prove that an additive surjective map phi on B(X) preserves the reduced minimum modulus if and only if either there are bijective isometries U:X -> X and V:X -> X both linear or both conjugate linear such that phi(T)=UTV for all T in B(X), or X is reflexive and there are bijective isometries U:X* -> X and V:X -> X* both linear or both conjugate linear such that phi(T)=UT*V for all T in B(X). As immediate consequences …
Santa Clara Magazine, Volume 51 Number 2, Fall 2009, Santa Clara University
Santa Clara Magazine, Volume 51 Number 2, Fall 2009, Santa Clara University
Santa Clara Magazine
16 - POLITICS AND RELIGION: STILL ON A COLLISION COURSE? An interview with Avraham Burg, former speaker of the Israeli Knesset. Plus excerpts from talks by E.J. Dionne Jr., Lisa Sowle Cahill '70, and Michael Eric Dyson.
20 - THE GULF OF WONDER By Emily Elrod '05. With a movie, Patrick McVeigh '78 offers investors a unique opportunity: Wake up the citizens of America and help them save one of the Seven Natural Wonders of the World. Plus, a 30 percent return.
24 - SEASON PREMIERE: "RESURRECTION" By Karen Crocker Snell. Forensic investigator Horatio Caine lies facedown in a pool …
Impacts Of Meteorological Factors On Modis-Observed Fire Activity In The North American Boreal Forest: The Role Of Lightning, David A. Peterson
Impacts Of Meteorological Factors On Modis-Observed Fire Activity In The North American Boreal Forest: The Role Of Lightning, David A. Peterson
Department of Earth and Atmospheric Sciences: Dissertations, Theses, and Student Research
The meteorological impact on wildfire activity in the North American boreal forest during the fire seasons of 2000 – 2006 is statistically analyzed through an integration of the following data sets: the MODerate Resolution Imaging Spectroradiometer (MODIS) level 2 fire products, the 3-hourly 32-km gridded meteorological data from North American Regional Reanalysis (NARR), the instantaneous lightning data collected by the Canadian Lightning Detection Network (CLDN), and the Alaska Lightning Detection Network (ALDN). Positive anomalies of the 500 hpa geopotential height field, convective available potential energy (CAPE), number of cloud-to-ground lightning strikes, and the number of consecutive dry days are found …
Suggestions For Owl 3, Pascal Hitzler
Suggestions For Owl 3, Pascal Hitzler
Computer Science and Engineering Faculty Publications
With OWL 2 about to be completed, it is the right time to start discussions on possible future modifications of OWL. We present here a number of suggestions in order to discuss them with the OWL user community. They encompass expressive extensions on polynomial OWL 2 profiles, a suggestion for an OWL Rules language, and expressive extensions for OWL DL.
Paraconsistent Reasoning For Owl 2, Yue Ma, Pascal Hitzler
Paraconsistent Reasoning For Owl 2, Yue Ma, Pascal Hitzler
Computer Science and Engineering Faculty Publications
A four-valued description logic has been proposed to reason with description logic based inconsistent knowledge bases. This approach has a distinct advantage that it can be implemented by invoking classical reasoners to keep the same complexity as under the classical semantics. However, this approach has so far only been studied for the basid description logic ALC. In this paper, we further study how to extend the four-valued semantics to the more expressive description logic SROIQ which underlies the forthcoming revision of the Web Ontology Language, OWL 2, and also investigate how it fares when adapated to tractable description logics including …
2009 (Fall), University Of Dayton. Department Of Mathematics
2009 (Fall), University Of Dayton. Department Of Mathematics
Colloquia
Abstracts of the talks given at the 2009 Fall Colloquium.
Bytes Of Π, Fall 2009, Department Of Mathematics And Computer Science, Bridgewater State College
Bytes Of Π, Fall 2009, Department Of Mathematics And Computer Science, Bridgewater State College
Department of Mathematics Newsletter
No abstract provided.
A Preferential Tableaux Calculus For Circumscriptive Alco, Stephan Grimm, Pascal Hitzler
A Preferential Tableaux Calculus For Circumscriptive Alco, Stephan Grimm, Pascal Hitzler
Computer Science and Engineering Faculty Publications
Nonmonotonic extensions of description logics (DLs) allow for default and local closed-world reasoning and are an acknowledged desired feature for applications, e.g. in the Semantic Web. A recent approach to such an extension is based on McCarthy's circumscription, which rests on the principle of minimising the extension of selected predicates to close off dedicated parts of a domain model. While decidability and complexity results have been established in the literature, no practical algorithmisation for circumscriptive DLs has been proposed so far. In this paper, we present a tableaux calculus that can be used as a decision procedure for concept satisfiability …
Ceg 770-01: Computer Engineering Mathematics, Yong Pei
Ceg 770-01: Computer Engineering Mathematics, Yong Pei
Computer Science & Engineering Syllabi
Computer Engineering and Science students need proficiency in relevant applied mathematics to be able to discover and model difficult real-world computer engineering and science problems. The relationship of these problems to mathematical theory will be discussed. This course provides an introduction to linear and nonlinear programming, probability and stochastic process, and queueing theory. In addition to mathematical theory, appropriate applications will be presented.
Ceg 260-01: Digital Computer Hardware/Switching Circuits, Meilin Liu
Ceg 260-01: Digital Computer Hardware/Switching Circuits, Meilin Liu
Computer Science & Engineering Syllabi
We will discuss and cover basic digital, combinational and sequential logic systems. Labs will be used to gain valuable practical experience in implementing elementary circuits and logic designs.
Ceg 320/520-01: Computer Organization, Michael L. Raymer
Ceg 320/520-01: Computer Organization, Michael L. Raymer
Computer Science & Engineering Syllabi
No abstract provided.
Ceg 221-01: Introduction To C Programming For Engineers, Jay Dejongh
Ceg 221-01: Introduction To C Programming For Engineers, Jay Dejongh
Computer Science & Engineering Syllabi
This course introduces advanced constructs, algorithms, and data structures in the C programming language. Emphasis is on problem solving and techniques useful to engineers. Topics include functions, array, pointers, structures as well as sorting algorithms, linked lists, complex numbers, and numerical methods applications. 4 credit hours. Prerequisite: CEG220 (Introduction to C Programming for Engineers).
Ceg 402/602-01: Introduction To Computer Communication, Jianing Ma
Ceg 402/602-01: Introduction To Computer Communication, Jianing Ma
Computer Science & Engineering Syllabi
This course provides an introduction to basic concepts of communication
networks, different types of networks, protocols over different layers, and network
applications through lectures, labs, homework, and reading on relevant materials. You will
•Understand networking principles, protocols, and technologies.
•Understand some design and performance issues involved in providing a
network service.
•Acquire background for supporting e-commerce, e-government, and e-education.
•Gain hands-on experience with programming techniques for network
protocols.
•Obtain background for original research in computer networks.
Ceg 434/634-01: Concurrent Software Design, Douglas J. Kelly
Ceg 434/634-01: Concurrent Software Design, Douglas J. Kelly
Computer Science & Engineering Syllabi
This course provides an introduction to concurrent program design in the UNIX environment. Classical problems of synchronization, concurrency, and their solutions are examined through course projects, homework, and readings on operating system design.
Ceg 433/633-01: Operating Systems, Thomas Wischgoll
Ceg 433/633-01: Operating Systems, Thomas Wischgoll
Computer Science & Engineering Syllabi
By the end of this quarter, you should be able to apply the learned concepts to the following:
•Develop, test and debug programs in Unix.
•Improve the performance of programs by tuning virtual memory usage, and file io.
•Design and construct device drivers for Unix.
•Design and build newer file systems for any OS.
During the course we will discuss topics from the following areas:
•Operating system structures
•Operating system interfaces
•Process management and scheduling
•Interprocess communication
•File systems
•Memory management
Ceg 453/653: Embedded Systems, Jack Jean
Ceg 453/653: Embedded Systems, Jack Jean
Computer Science & Engineering Syllabi
No abstract provided.
Ceg 702-01: Advanced Computer Networks, Yong Pei
Ceg 702-01: Advanced Computer Networks, Yong Pei
Computer Science & Engineering Syllabi
This course provides an in-depth examination of the fundamental concepts and principles in communications and computer networks. Topics include: queuing analysis, ATM, frame relay, performance analysis of routings, and flow and congestion controls.
Ceg 498-01: Design Experience, Thomas C. Hartrum
Ceg 498-01: Design Experience, Thomas C. Hartrum
Computer Science & Engineering Syllabi
CEG 498 (Design Experience) is a summative computer engineering design project course that builds upon previous engineering, science, mathematics and communications course work. CEG 498 projects are a minimum of two quarters in length and must be completed in groups of at least three students. Projects are selected under the guidance of the course instructor and are tailored to both student interest and formal classroom preparation. Students are evaluated both on their individual contributions as recorded in a graded engineering journal and on the quality of their collective efforts as reflected in group generated products.
Ceg 760-01: Advanced Software Computer Engineering, Thomas C. Hartrum
Ceg 760-01: Advanced Software Computer Engineering, Thomas C. Hartrum
Computer Science & Engineering Syllabi
This course covers advanced topics in software engineering. Aspects of problem specification, design, verification, and evaluation are discussed. We will focus on design methods, including software patterns and software architecture, plus some advanced topics involving formal methods of software specification or evaluation using software metrics. Students will participate in team projects to apply the methods discussed.
Ceg 730-01: Distributed Computing Principles, Prabhaker Mateti
Ceg 730-01: Distributed Computing Principles, Prabhaker Mateti
Computer Science & Engineering Syllabi
[4 Credit Hours] Communicating sequential processes, clients and servers, remote procedure calls, stub generation, weak and strong semaphores, split-binary-semaphores, and distributed termination. Example languages: SR, Linda. Prerequisite: CEG 633
Student Fact Book, Fall 2009, Thirty-Third Annual Edition, Wright State University, Office Of Student Information Systems, Wright State University
Student Fact Book, Fall 2009, Thirty-Third Annual Edition, Wright State University, Office Of Student Information Systems, Wright State University
Wright State University Student Fact Books
The student fact book has general demographic information on all students enrolled at Wright State University for Fall Quarter, 2009.
An Aztec 1.1 Mm Survey Of The Goods-N Field - Ii. Multiwavelength Identifications And Redshift Distribution, Edward L. Chapin, Alexandra Pope, Douglas Scott, Itziar Aretxaga, Jason E. Austermann, Ranga Ram Chary, Kristen Coppin, Mark Halpern, David H. Hughes, James D. Lowenthal, Glenn E. Morrison, Thushara A. Perera, Kimberly S. Scott, Grant W. Wilson, Min S. Yun
An Aztec 1.1 Mm Survey Of The Goods-N Field - Ii. Multiwavelength Identifications And Redshift Distribution, Edward L. Chapin, Alexandra Pope, Douglas Scott, Itziar Aretxaga, Jason E. Austermann, Ranga Ram Chary, Kristen Coppin, Mark Halpern, David H. Hughes, James D. Lowenthal, Glenn E. Morrison, Thushara A. Perera, Kimberly S. Scott, Grant W. Wilson, Min S. Yun
Astronomy: Faculty Publications
We present results from a multiwavelength study of 29 sources (false detection probabilities cent) from a survey of the Great Observatories Origins Deep Survey-North (GOODS-N) field at 1.1 mm using the Astronomical Thermal Emission Camera (AzTEC). Comparing with existing 850 μm Submillimetre Common-User Bolometer Array (SCUBA) studies in the field, we examine differences in the source populations selected at the two wavelengths. The AzTEC observations uniformly cover the entire survey field to a 1σ depth of ∼1 mJy. Searching deep 1.4 GHz Very Large Array (VLA) and Spitzer 3-24 μm catalogues, we identify robust counterparts for 21 1.1 mm sources, …
Arts And Sciences Newsletter, Volume 13, Issue 1, College Of Arts & Sciences
Arts And Sciences Newsletter, Volume 13, Issue 1, College Of Arts & Sciences
Arts and Sciences Newsletters
No abstract provided.
The Planet, 2009, Fall, Kaylin Bettinger, Huxley College Of The Environment, Western Washington University
The Planet, 2009, Fall, Kaylin Bettinger, Huxley College Of The Environment, Western Washington University
The Planet
No abstract provided.
Scwds Briefs: Volume 25, Number 3 (October 2009), Gary L. Doster , Editor, Scwds Briefs, Michael J. Yabsley
Scwds Briefs: Volume 25, Number 3 (October 2009), Gary L. Doster , Editor, Scwds Briefs, Michael J. Yabsley
Southeastern Cooperative Wildlife Disease Study: Publications
Table of Contents:
Clams & AI Virus
SCWDS Funded to Study WNS
USDA Program Changes Proposed
TB in Captive Cervids
CWD Prions in Deer Feces
TWS Position Statement on Lead
WDA Awards For SCWDS Staff
New Brochure for Hog Hunters
Crop Yield Gaps: Their Importance, Magnitudes, And Causes, David B. Lobell, Kenneth G. Cassman, Christopher B. Field
Crop Yield Gaps: Their Importance, Magnitudes, And Causes, David B. Lobell, Kenneth G. Cassman, Christopher B. Field
Nebraska Center for Energy Sciences Research: Publications
Future trajectories of food prices, food security, and cropland expansion are closely linked to future average crop yields in the major agricultural regions of the world. Because the maximum possible yields achieved in farmers’ fields might level off or even decline in many regions over the next few decades, reducing the gap between average and potential yields is critical. In most major irrigated wheat, rice, and maize systems, yields appear to be at or near 80% of yield potential, with no evidence for yields having exceeded this threshold to date. A fundamental constraint in these systems appears to be uncertainty …