Digital Commons Network^™

A Nonlinear Analysis Of A First-Order Digital Phase-Locked Loop, R. Jean-Marc Cramer

Department of Electrical and Computer Engineering Technical Reports

The major goal of this work was to establish a set of algorithms for the investigation of processes classified as first order Markov. In particular, these algorithms were applied to the analysis of the first-order digital phase-locked loop. Several characteristics of the loop were investigated, including the steady-state phase reference density function and the associated probability of error, the acquisition process of the loop, including a study of the acquisition probabilities under different conditions, and the cycle slipping phenomenon as it applies to the DPLL. In general, the parameters of interest in each case above were determined and derived, then …

Eliminating Extraneous Solutions In Curve And Surface Operations, Christoph M. Hoffmann, Pamela J. Vermeer

Department of Computer Science Technical Reports

No abstract provided.

A Framework For 1-D Compaction With Forbidden Region Avoidance, Susanne E. Hambrusch, Hung-Yi Tu

Department of Computer Science Technical Reports

No abstract provided.

Analyzing Availability Of Replicated Database Systems, Bharat Bhargava, Abdelsalam Helal, Karl Friesen

Department of Computer Science Technical Reports

No abstract provided.

Multisearch Techniques: Parallel Data Structures On Mesh-Connected Computers, Mikhail J. Atallah, Frank Dehne, Russ Miller, Andrew Rau-Chaplin, Jyh-Jong Tsay

Department of Computer Science Technical Reports

No abstract provided.

A Robust Intersection Algorithm Based On Delaunay Triangulation, Kokichi Sugihara

Department of Computer Science Technical Reports

No abstract provided.

An Optimal Parallel Algorithm For Detecting Weak Visibility Of A Simple Polygon, Danny Z. Chen

Department of Computer Science Technical Reports

No abstract provided.

Optimal Adaptive Multistage Image Transform Coding, S. Aghagolzadeh, O. K. Ersoy

Department of Electrical and Computer Engineering Technical Reports

No abstract provided.

Simulation In Emergency Management And Engineering And Simulation In Health Care, James Anderson

RCHE Publications

The purpose of this study was (1) to investigate the frequency, type and severity of medication errors in a large midwestern private teaching hospital; (2) to assess the impact of the use of pharmacists to detect and correct medication errors; (3) and to construct a computer simulation model to study the problem of medication errors in a hospital.

Experiments In Concurrent Stochastic Simulation: The Eclipse Paradigm, Vernon J. Rego, V. S. Sunderam

Department of Computer Science Technical Reports

No abstract provided.

The Parallelization Of Level 2 And 3 Blas Operations On Distributed Memory Machines, M. Aboelaze, N. P. Chrisochoides, Elias N. Houstis, C. E. Houstis

Department of Computer Science Technical Reports

No abstract provided.

Performance Of Pde Sparse Solvers On Hypercubes, Mo Mu, John R. Rice

Department of Computer Science Technical Reports

No abstract provided.

A Spatial Index For Convex Simplicial Complexes In D Dimensions, George Vanĕček, Vincenzo Ferrucci

Department of Computer Science Technical Reports

No abstract provided.

Endothelial Superoxide Production In The Isolated Rat Heart During Early Reperfusion After Ischemia -- A Histochemical Study, Charles F. Babbs, Meloney D. Cregor, John J. Turek, Stephen F. Badylak

Weldon School of Biomedical Engineering Faculty Publications

This paper describes a histochemical study of superoxide generation in buffer-perfused, isolated rat hearts during the first 2 minutes of reperfusion after 60 minutes of warm ischemia. Superoxide radical production was demonstrated by a modification of Karnovsky's manganese/diaminobenzidine technique, in which superoxide oxidizes Mn++ to Mn+++ ions, which in turn oxidize diaminobenzidine to form amber, osmiophilic polymers, observable by light or electron microscopy. Isolated hearts were rendered ischemic, reperfused with oxygen equilibrated buffer containing Mn++ and diaminobenzidine, fixed by perfusion with Trump's solution, and processed for light and electron microscopy. The method consistently demonstrated evidence of superoxide generation near the …

On Optimal Adaptive Classifier Design Criterion- How Many Hidden Units Are Necessary For An Optimal Neural Network Classifier?, Wei Tsih Lee, Manoel Fernando Tenorio

Department of Electrical and Computer Engineering Technical Reports

A central problem in classifier design is the estimation of classification error. The difficulty in classifier design arises in situations where the sample distribution is unknown and the number of training samples available is limited. In this paper, we present a new approach for solving this problem. In our model, there are two types of classification error: approximation and generalization error. The former is due to the imperfect knowledge of the underlying sample distribution, while the latter is mainly the result of inaccuracies in parameter estimation, which is a consequence of the small number of training samples. We therefore propose …

Repair/Rehabilitation Of Deteriorated Drainage Pipe, Bob G. Mccullouch

JTRP Technical Reports

This report describes the current technologies, methods and materials used in drainage pipe rehab and replacement. It also identifies which of these technologies can be applied for the various pipe material types. Installed cost information was obtained from the states in the survey and from vendors for the various methods. In describing each method, equipment requirements and limitations are reported. From this report, one should be able to understand what method is appropriate for the various repair problems and pipe types.

Bringing Tutorials To A Close: Counseling's Termination Process And The Writing Tutorial, Michael Steven Marx

The Writing Center Journal

No abstract provided.

Multi-Cultural Voices: Peer Tutoring And Critical Reflection In The Writing Center, Gail Y. Okawa, Thomas Fox, Lucy J.Y. Chang, Shana R. Windsor, Frank Bella Chavez Jr., Laguan Hayes

The Writing Center Journal

No abstract provided.

From The Editors, Diana George, Nancy Grimm, Ed Lotto

The Writing Center Journal

No abstract provided.

The Evolution Of A Writing Center: 1972-1990, William Yahner, William Murdick

The Writing Center Journal

No abstract provided.

Spelling Instruction In The Writing Center, Linda F. White

The Writing Center Journal

No abstract provided.

Automated Construction Data Management System, Bob G. Mccullouch

JTRP Technical Reports

Project engineers and managers involved in construction spend a disproportionate amount of time collecting and processing construction data. This processing of data typically causes the construction manager to be distracted from the more important task of supervising and controlling the project. The amount of construction data will most likely continue to expand in the future creating more of a burden on the construction manager. So reducing the volume of data most likely will not occur. New innovative data management systems that utilize the latest in computer and automatic identification technologies should be developed. This report describes such a system for …

Automated Construction Data Management System, Bob G. Mccullouch

JTRP Technical Reports

No abstract provided.

User's Manual For The Software "Tfpi" That Implements The Traffic Forecasting Procedure For Indiana, Sunil K. Saha, Jon D. Fricker

JTRP Technical Reports

A program has been written in Microsoft QuickBASIC to implement the traffic models developed for both rural and urban Indiana state highway segments during a two-phase HPR Project carried out for the Indiana Department of Transportation. The report ''TRAFFIC VOLUME FORECASTING METHODS FOR RURAL STATE HIGHWAYS" describes the models developed in Phase 1 of the study, while the report "THE DEVELOPMENT OF A PROCEDURE TO FORECAST TRAFFIC VOLUMES ON URBAN SEGMENTS OF THE STATE AND INTERSTATE HIGHWAY SYSTEMS" describes the models developed in Phase 2. For rural interstates, new models have been developed in Phase 2 that supercede the Phase …

Accident Reduction Factors For Indiana, Daniel Joseph Ermer, Kumares C. Sinha

JTRP Technical Reports

This report presents the results of a study conducted to develop appropriate accident reduction factors associated with various highway improvement projects in Indiana. The factors were developed through a before-and-after analysis of accident data from 1983 to 1987. Disclaimer: This report presents the results of statistical analyses applied to available data. The accident reduction factor values do not imply any endorsement of any particular project types by the Federal Highway Administration or the Indiana Department of Transportation or the Joint Highway Research Project of Purdue University.

Driving Of Thin Shells For Steel Encased Concrete Piles, G. Agrawal, Jean-Lou Chameau

JTRP Technical Reports

The major purpose of this study was to identify the causes for the driving difficulties often given experienced on highway projects where thin shells are used for cast-in situ concrete piles that support bridge approaches, and to develop a set of recommendations and procedures to enable INDOT engineers to (a) make use of available technology for dynamic analysis of pile driving; and (b) make appropriate changes in the design, construction and contract specification procedures to improve identification and correction of problems at the earliest possible stage.

This study indicates that the parameter of greatest importance for most projects is the …

User Guide For Pc-Stabl3d, Gennady Moshkovich

JTRP Technical Reports

PC-STABL3D is the program for IBM PC compatible computers, developed to handle general stability analysis of three-dimensional slopes. Random generation routines are invoked to create trial failure surfaces, which are analyzed using the limiting equilibrium approach. The current version of PC-STABL3D is enhanced by a graphical pre/postprocessor, which facilitates creation and edition 0 data files, examination of problem geometry, and analyzing of the obtained failure surfaces. After the failure surfaces are generated and their factors of safety are computed, the program performs statistical analysis of received factors of safety, and calculates minimum statistical factor of safety. The information about minimum …

Heuristic Guided Pre-Optimized Algorithm Substitution For Parallel Computers, Ko-Yang Wang

Department of Computer Science Technical Reports

No abstract provided.

Brep-Index: A Multi-Dimensional Space Partitioning Tree, George Vanĕček

Department of Computer Science Technical Reports

No abstract provided.

Implementing Expert System Rule Conditions By Neural Networks, Henry Tirri

Department of Computer Science Technical Reports

No abstract provided.