Digital Commons Network^™

Self-Adjusting Congestion Avoidance Routing Protocol For Ad Hoc Networks, Yi Lu, Bharat Bhargava

Department of Computer Science Technical Reports

No abstract provided.

Corpi, Murakami, And Contemporary Hardboiled Fiction, Cathy Steblyk

CLCWeb: Comparative Literature and Culture

In her paper, "Corpi, Murakami, and Contemporary Hardboiled Fiction," Cathy Steblyk discusses comparatively texts by contemporary detective fiction writers, one an ethnic-minority US-American and the other Japanese. Steblyk proposes that in detective fiction since the late 1980s, morally or ethically contestable sites of history have been given a postmortem by contemporary authors who are interested in restoring the lost parts of cultural histories. Detective fictions by feminist US-Chicana author Lucha Corpi and Japanese writer Murakami Haruki show how recent fiction from around the globe uses the hardboiled genre for the purposes of exploring past injustices and offering revisionist histories. The …

Science, Sexuality, And The Novels Of Huxley And Houellebecq, Angela C. Holzer

CLCWeb: Comparative Literature and Culture

In her article "Science, Sexuality, and the Novels of Huxley and Houellebecq," Angela C. Holzer begins with an introduction to recent discourse about contemporary culture by Francis Fukuyama, notably in his book Our Posthuman Future (2001). Next, Holzer introduces twentieth-century literary representations of genetic engineering. Focusing on Huxley's Brave New World (1932) and on Houellebecq's Les Particules élémentaires (1998), Holzer discusses differences in "utopian" literature when linked to metaphysical aspects of reproduction and that are owing to changes in the life sciences and medicine. Further, Holzer explores the implications for poetics resulting from scientific developments and relates Houellebecq's perspectives to …

Idioms In Ovm, C. Flack, Antony L. Hosking, Jan Vitek

Department of Computer Science Technical Reports

No abstract provided.

Economics Of A Collaborative Peer-To- Peer Infrastructure For Content Distribution, Mohamed Hefeeda, Philipp Afeche, Bharat Bhargava

Department of Computer Science Technical Reports

No abstract provided.

Collectcast: A Peer-To-Peer Service For Media Streaming, Mohamed Hefedda, Ahsam Habib, Dongyan Xu, Bharat Bhargava, Boyan Botev

Department of Computer Science Technical Reports

No abstract provided.

Running Linux On Back-End Computers In The Xinu Lab, Douglas E. Comer, Xuxian Jiang

Department of Computer Science Technical Reports

No abstract provided.

Energy-Efficient Routing Schemes For Sensor Networks, Maleq Khan, Gopal Pandurangan, Bharat Bhargava

Department of Computer Science Technical Reports

No abstract provided.

The Modelcamera: A Hand-Held Device For Interactive Modeling, Voicu Popescu, Elisha Sacks, Gleb Bahmotov

Department of Computer Science Technical Reports

No abstract provided.

Fraud Formalization And Detection, Bharat Bhargava, Yuhui Zhong, Yuhua Lu

Department of Computer Science Technical Reports

No abstract provided.

Packet Loss In Mobile Ada Hoc Networks, Yi Lu, Yuhui Zhong, Bharat Bhargava

Department of Computer Science Technical Reports

No abstract provided.

Airline Quality Rating 2003, Brent D. Bowen, Dean E. Headley

Airline Quality Rating Report

The Airline Quality Rating (AQR) was developed and first announced in early 1991 as an objective method of comparing airline quality on combined multiple performance criteria. This current report, the Airline Quality Rating 2003, reflects monthly Airline Quality Rating scores for 2002. AQR scores for the calendar year 2002 are based on 15 elements that focus on airline performance areas important to air travel consumers.

The Airline Quality Rating 2003 is a summary of month-by-month quality ratings for the 10 largest U.S. airlines operating during 2002. Using the Airline Quality Rating system of weighted averages and monthly performance data in …

Vbet: A Vm-Based Emulation Testbed, Xuxian Jiang, Dongyan Xu

Department of Computer Science Technical Reports

No abstract provided.

Producing High-Quality Visualizations Of Large-Scale Simulations, Voicu Popescu, Chris M. Hoffmann, Dami Kilic, Mete Sozen, Scott Meador

Department of Computer Science Technical Reports

No abstract provided.

Self-Configuring Clusters, Data Aggregation And Authentication In Microsensor Networks, Maleq Khan, Bharat Bhargava, Leszek Lilien

Department of Computer Science Technical Reports

No abstract provided.

Dynamic Trust Production Based On Based On Interaction Sequence, Yuhui Zhong, Yi Lu, Bharat Bhargava

Department of Computer Science Technical Reports

No abstract provided.

Protection Of Application Service Hosting Platforms: An Operating System Perspective, Xuxian Jiang, Dongyan Xu

Department of Computer Science Technical Reports

No abstract provided.

International Cross Section Estimates Of Demand For Use In The Gtap Model, Jeff Reimer, Thomas Hertel

GTAP Working Papers Archive

The making of projections often requires an economy-wide perspective, and the estimation of consumer demands at the international level. In this paper, an implicit, directly additive demand system (AIDADS) is estimated using cross-country data on consumer expenditures from the International Comparison Program (ICP), and then from Global Trade Analysis Project (GTAP) data. The two data sets are found to produce results that are quite consistent despite their differing origins, and the fact that the former is based on consumer goods that embody wholesale/retail margins, while margin demands are treated separately in GTAP. Given the similarity of the results, the estimation …

A Report On Impact Of Data Compression On Energy Consumption Of Wireless- -Networked Handheld Devices, Rong Xu, Zhiyuan Li, Cheng Wang, Peifeng Ni

Department of Computer Science Technical Reports

No abstract provided.

Tcp Over Wireless Links: Mechanisms And Implications, Sonia Fahmy, Venkatesh Prabhakar, Srinivas R. Avasarafa, Ossama M. Younis

Department of Computer Science Technical Reports

No abstract provided.

The State Of Practice In Supply-Chain Management: A Research Perspective, Leroy B. Schwarz

Purdue CIBER Working Papers

In this paper, 1 will describe examples of state-of-the-art practice in supply-chain management; e.g., vendor-managed inventory, quick response, and other contemporary systems, such as Wal-Mart's RetailLink. The perspective will be that of what I call the JDJB Portfolio; i.e., what Information (I), Decision-Making {D), Implementation (I), and Buffer (B) systems are employed in managing real-world supply chains. Most operations-research models consider only two components of this portfolio: the decision-making and the buffer systems. More specifically, most operations-research models involve selecting a decision-rule to minimize expected buffer (e.g., inventory-holding and backorder) cost given a fixed level of information. Implementation as a …

A Fixed-Grid Front-Tracking Algorithm For Solidification Problems. Part I - Method And Validation, C. Y. Li, S V. Garimella, J E. Simpson

CTRC Research Publications

A numerical study of directional solidification has been performed using a fixed-grid front- tracking algorithm. The directional solidification of pure tin, as well as the horizontal Bridgman growth of pure succinonitrile, were investigated. In both cases, the growth front was stable and nondendritic, but was significantly distorted by the influence of convection in the melt and, for the Bridgman growth case, by the translation of temperatures at the boundaries which represents furnace movement. Results obtained for the directional soli- dification of pure tin were found to agree reasonably well with experimental and numerical data for temperatures and front locations obtained …

Simplified Meta-Analysis Of Clinical Trials In Resuscitation, Charles F. Babbs

Weldon School of Biomedical Engineering Faculty Publications

Objective: To present and demonstrate a new simplified method for synthesizing results of multiple clinical trials in resuscitation research. Methods: The mean difference across studies in the proportion of favorable outcomes between experimental and control groups is calculated. This difference is shown to have a t-distribution. Its significance can be ascertained with a simple t-test. The analysis can be implemented in a one-page computer spreadsheet. Results: Simplified meta-analysis provides high sensitivity and can be extended to include weighting of studies according to size or quality, comparison of subgroups of studies, tests for outliers, and calculation of the power of the …

Constraining The Couplings Of Massive Pseudoscalars Using Gravity And Optical Experiments, E. G. Adelberger, E. Fischbach, D. E. Krause, R. D. Newman

Department of Physics and Astronomy Faculty Publications

The simultaneous exchange of two pseudoscalars between fermions leads to a spin-independent force between macroscopic objects. Previous work has demonstrated that one can combine this interaction with tests of the weak equivalence principle, gravitational inverse square law, and studies of laser beam propagation in magnetic fields, to set significant new constraints on the Yukawa couplings of massless pseudoscalars to nucleons. Here we extend these results to massive pseudoscalars, and derive new constraints which relate the strengths of these couplings to the pseudoscalar mass.

Robust Steady-State Filtering For Systems With Deterministic And Stochastic Uncertainties, F. Wang, V. Balakrishnan

Department of Physics and Astronomy Faculty Publications

For uncertain systems containing both deterministic and stochastic uncertainties, we consider two problems of optimal filtering. The first is the design of a linear time-invariant filter that minimizes an upper bound on the mean energy gain between the noise affecting the system and the estimation error. The second is the design of a linear time-invariiint filter that minimizes an up per bound on the asymptotic mean square estimation error when the plant is driven by a white noise. We present filtering algorithms that solve each of these problems, with the filter parameters determined via convex optimization based on linear matrix …

Lorentz Transformation And Vector Field Flows, S. H. Chiu, T. K. Kuo

Department of Physics and Astronomy Faculty Publications

The parameter changes resulting from a combination of Lorentz transformations are shown to form vector field flows. The exact, finite Thomas rotation angle is determined and interpreted intuitively. Using phase portraits, the parameters evolution can be clearly visualized. In addition to identifying the fixed points, we obtain an analytic invariant which correlates the evolution of parameters.

Signal Searching In Return Spectra And Decision Making Using Minimal Integration Time, D. S. Koltick

Department of Physics and Astronomy Faculty Publications

Neutron scanning techniques are becoming important tools in the search for chemical agents, explosives, drugs, nuclear material and other hazardous materials in government buildings, airports, military installations or public areas. Each nucleus when excited emits quanta of gamma radiation at characteristic energies. The element can be physically located and identified by these energy lines. It is important to identify these lines in a minimal amount of time in order to increase the number of items that are searched and to allow fast flow of people and their possessions into and through facilities. This paper develops a mathematical model of the …

Interposed Abdominal Compression Cpr: A Comprehensive Evidence Based Review, Charles F. Babbs

Weldon School of Biomedical Engineering Faculty Publications

Interposed abdominal compression (IAC)-CPR includes all steps of standard external CPR with the addition of manual mid-abdominal compressions in counterpoint to the rhythm of chest compressions. IAC-CPR can increase blood flow during CPR about two fold compared to standard CPR without IAC, as shown by 6 of 6 studies in computer models and 19 of 20 studies in various animal models. The addition of IAC has clinical benefit in humans, as indicated in 10 of 12 small to medium sized clinical studies. The technique increases the frequency of immediate return of spontaneous circulation for in-hospital resuscitations from roughly 25% to …

A General Framework For Nonlinear Multigrid Inversion, Seungseok Oh, Adam B. Milstein, Charles A. Bouman, Kevin J. Webb

Department of Electrical and Computer Engineering Technical Reports

A variety of new imaging modalities, such as optical diffusion tomography, require the inversion of a forward problem that is modeled by the solution to a 3-D partial differential equation. For these applications, image reconstruction is particularly difficult because the forward problem is both nonlinear and computationally expensive to evaluate. In this paper, we propose a general framework for nonlinear multigrid inversion that is applicable to a wide variety of inverse problems. The multigrid inversion algorithm results from the application of recursive multigrid techniques to the solution of optimization problems arising from inverse problems. The method works by dynamically adjusting …

Quantum Mechanical Analysis Of Channel Access Geometry And Series Resistance In Nanoscale Transistors, R. Venugopal, S. Goasguen, Supriyo Datta, Mark S. Lundstrom

Department of Electrical and Computer Engineering Faculty Publications

We apply a two-dimensional quantum mechanical simulation scheme to study the effect of channel access geometries on device performance. This simulation scheme solves the nonequilibrium Green’s function equations self-consistently with Poisson’s equation and treats the effect of scattering using a simple approximation inspired by Büttiker. It is based on an expansion of the device Hamiltonian in coupled mode space. Simulation results are used to highlight quantum effects and discuss the importance of scattering when examining the transport properties of nanoscale transistors with differing channel access geometries. Additionally, an efficient domain decomposition scheme for evaluating the performance of nanoscale transistors is …