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The Use Of Bottom Ash In Highway Embankments, Subgrades, And Subbases : Executive Summary, Wei-Hsing Huang

JTRP Technical Reports

This research assessed those properties of power plant bottom ash likely to affect its use as highway fill or pavement material, based on laboratory investigation conducted on eleven Indiana bottom ashes. Laboratory tests included: chemical analysis, mineralogical study, microscopic examination of ash particles, specific gravity, grain size distribution, sulfate soundness, Los Angeles abrasion, permeability, shear strength, moisture-density relations, degradation under compaction, compressibility, and California bearing ratio.

The various test values and properties were compared to- those of representative granular soils or appropriate specifications. These comparisons provide information necessary for judging the suitability of bottom ash in Indiana highway construction.

The …

The Use Of Bottom Ash In Highway Embankments, Subgrades, And Subbases, Wei-Hsing Huang

JTRP Technical Reports

This research assessed those properties of power plant bottom ash likely to affect its use as highway fill or pavement material, based on laboratory investigation conducted on eleven Indiana bottom ashes. Laboratory tests included: chemical analysis, mineralogical study, microscopic examination of ash particles, specific gravity, grain size distribution, sulfate soundness, Los Angeles abrasion, permeability, shear strength, moisture-density relations, degradation under compaction, compressibility, and California bearing ratio.

The various test values and properties were compared to- those of representative granular soils or appropriate specifications. These comparisons provide information necessary for judging the suitability of bottom ash in Indiana highway construction.

The …

The Physical Durability And Electrical Resistivity Of Indiana Bottom Ash : Executive Summary, Te-Chih Ke

JTRP Technical Reports

This research assessed the long-term performance (durability) and the environmental effect (corrosiveness to adjacent metal structures) of Indiana bottom ashes, based mainly on laboratory investigation. The 5-cycle sodium sulfate soundness tests and the 50-cycle freeze-thaw tests were conducted to examine the physical durability. Four electrochemical characteristics (electrical resistivity, pH, soluble chloride, and soluble sulfate) were used to estimate the corrosion potential of Indiana bottom ashes.

Evaluation criteria for durability and corrosiveness of bottom ash, based on appropriate specifications for aggregates and past experiences for soils, were developed. The comparison of test results and the above criteria shows that Indiana bottom …

The Physical Durability And Electrical Resistivity Of Indiana Bottom Ash, Te-Chih Ke

JTRP Technical Reports

This research assessed the long-term performance (durability) and the environmental effect (corrosiveness to adjacent metal structures) of Indiana bottom ashes, based mainly on laboratory investigation. The 5-cycle sodium sulfate soundness tests and the 50-cycle freeze-thaw tests were conducted to examine the physical durability. Four electrochemical characteristics (electrical resistivity, pH, soluble chloride, and soluble sulfate) were used to estimate the corrosion potential of Indiana bottom ashes.

Evaluation criteria for durability and corrosiveness of bottom ash, based on appropriate specifications for aggregates and past experiences for soils, were developed. The comparison of test results and the above criteria shows that Indiana bottom …

An Electronic Surveillance And Control System For Traffic Management On The Borman Expressway, Part I, Michael J. Cassidy, Kumares C. Sinha

JTRP Technical Reports

No abstract provided.

Computer Vandalism And The Law, Eugene H. Spafford

Department of Computer Science Technical Reports

No abstract provided.

A Computer Virus Primer, Eugene H. Spafford, Kathleen A. Heaphy, David J. Ferbrache

Department of Computer Science Technical Reports

No abstract provided.

The Internet Worm Incident, Eugene H. Spafford

Department of Computer Science Technical Reports

No abstract provided.

The Pseiki Report -- Version 3. Evidence Accumulation And Flow Of Control In A Hierarchical Spatial Reasoning System, K. M. Andress, A. C. Kak

Department of Electrical and Computer Engineering Technical Reports

A fundamental goal of computer vision research is the development of systems capable of carrying out scene interpretation using knowledge of the expected scene. Here, we describe PSEIKI, a framework for expectation-driven interpretation of image data. PSEIKI performs expectation-driven processing by matching elements, such as edges and regions, detected in an image with model-elements front a supplied expected scene. PSEIRI builds abstraction hierarchies in image data using cues taken from the supplied abstractions in the expected scene. Hypothesized abstractions in the image data are geometrically compared with the known abstractions in the expected scene; the metrics used for these comparisons …

Physical Mechanisms Contributing To Nonlinear Responsivity In Silicon Concentrator Solar Cells, Edmund K. Banghart

Department of Electrical and Computer Engineering Technical Reports

Comparison of experimental data with the results of present models indicates that silicon solar cell operation at high solar concentration is not completely understood. That silicon concentrator cells are not fully understood was first recognized as nonlinearities experimentally observed in the response of the short circuit current to increasing solar concentration. In order to interpret the experimentally observed sublinear responsivities, a review in the literature of the physical mechanisms which have significance for solar cell operation at high solar intensities is essential. These phenomena include bandgap narrowing, Auger recombination, carrier diffusion, and the loss of base conductivity modulation. In this …

Implementing Object Support In The Raid Distributed Database System, Bharat Bhargava, Prasun Dewar, James G. Mullen, Jagannathan Srinivasan

Department of Computer Science Technical Reports

No abstract provided.

Basic Studies Of Iii-V High Efficiency Cell Components, M. S. Lundstrom, M. R. Melloch, R. F. Pierret, M. S. Carpenter

Department of Electrical and Computer Engineering Technical Reports

This project’s objective is to improve our fundamental understanding of the generation, recombination, and transport of carriers within III-V homo- and heterostructures. The research consists of fabricating and characterizing solar cell “ building blocks” such as junctions and heterojunctions as well as basic measurements of material parameters. A significant effort is also being directed at characterizing loss mechanisms in high-quality, III-V solar cells fabricated in industrial research laboratories throughout the United States. The project’s goal is to use our understanding of the device physics of high-efficiency cell components to maximize cell efficiency. A related goal is the demonstration of new …

Performance Characteristics Of Switched Reluctance Motor Drive, M. Moallem, C. M. Ong

Department of Electrical and Computer Engineering Technical Reports

In this report, methods and computational techniques for predicting the static and steady state characteristics of a switched reluctance motor drive are developed and the predicted characteristics are compared with experimental results. Because of high local saturation and narrow airgap in the SR motor, accurate calculation of the static characteristics of the torque, flux linkage, inductances, and speed emf from its FE field solution is not straightforward. For the purpose of this study, a two-dimensional finite element model is developed to handle the nonlinear magnetic field inside the machine. Based on a thorough study of the potential sources of errors …

Modeling, Simulation, And Analysis Of Optical Remote Sensing Systems, John P. Kerekes, David A. Landgrebe

Department of Electrical and Computer Engineering Technical Reports

Remote Sensing of the Earth's resources from space-based sensors has evolved in the past twenty years from a scientific experiment to a commonly used technological tool. The scientific applications and engineering aspects of remote sensing systems have been studied extensively. However, most of these studies have been aimed at understanding individual aspects of the remote sensing process while relatively few have studied their interrelations. A motivation for studying these interrelationships has arisen with the advent of highly sophisticated configurable sensors as part of the Earth Observing System (EOS) proposed by NASA for the 1990's. These instruments represent a tremendous advance …

"If You Don't Like It, Neither Do I", Judith A. Myers-Walls

Historical Documents of the Purdue Cooperative Extension Service Archive

Most children do not know about, nor care about, "food value," "vitamins," "minerals," or "food groups,' making it important for parents to provide guidance to their children to help them eat right. This publication will explore the ways in which parents influence children's eating habits and suggest some specific techniques parents can use to guide children as they learn about nutrition. How can parents help children to appreciate and enjoy foods that are good for them?

Physics And Modeling Of Submicron Devices, Supriyo Datta, Mark S. Lundstrom, Amitava Das, Roger Lake, Michael J. Mclennan, Mark Stettler

Department of Electrical and Computer Engineering Technical Reports

No abstract provided.

Guide To Revenue Calculations: Local Option Highway User Tax 1989, Herpicc

Indiana Local Technical Assistance Program (LTAP) Publications

This guide is provided to explain the output generated by the computer programs, and to suggest ways in which the results can be adapted to specific LOHUT proposals before a County Council. HERPICC neither endorses nor opposes passage of a LOHUT. The revenue projections it provides are intended to be an aid to well-informed decision-making on the part of a county’s citizens and its County Council.

Making It Public: Sage, Katina Strauch

Against the Grain

No abstract provided.

Annual Summary Activities Of The Purdue Electric Power Center May 1988 - April 1989, G. T. Heydt

Department of Electrical and Computer Engineering Technical Reports

No abstract provided.

A County Engineer's View Of Local Roads And Streets From The Legislature, Bernard Lieder

Purdue Road School

No abstract provided.

Attracting Students To A Professional Career In Transportation Engineering, Harold L. Michael

Purdue Road School

No abstract provided.

Rest Areas And Wildflowers, Daniel Zay

Purdue Road School

No abstract provided.

Preface, Purdue Road School

Purdue Road School

No abstract provided.

75 Years Old: The Purdue Road School, Harold L. Michael

Purdue Road School

No abstract provided.

The Federal Highway Future, Arthur A. Fendrick

Purdue Road School

No abstract provided.

Road School Wrap Up, Christine W. Letts

Purdue Road School

No abstract provided.

The Application Of Value Engineering To Highway Projects And Programs, Bruce A. Lind

Purdue Road School

No abstract provided.

Transportation 2020, James Pline

Purdue Road School

No abstract provided.

Speed Zone Guidelines, Ronald Greiwe

Purdue Road School

No abstract provided.

An Integral Equation For Dissipative Quantum Transport, Supriyo Datta, Michael J. Mclennan

Department of Electrical and Computer Engineering Technical Reports

We present an integral equation derived under the simplifying assumption that the inelastic scattering is caused by uncorrelated point scatterers, such as magnetic impurities or impurities with internal degrees of freedom. While this assumption is not always realistic, we believe that the model can be used to describe much of the essential physics of quantum transport in mesoscopic systems. This assumption allows us to write a transport equation that involves only the electron density and not the spatial correlations of the wave function. The kernel of this integral equation is calculated from the Schrodinger equation and contains all quantum interference …