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Nwca Information Jan 1998

Nwca Information

The Writing Center Journal

No abstract provided.


Information For Authors Jan 1998

Information For Authors

The Writing Center Journal

No abstract provided.


Strength And Durability Of Concrete: Effects Of Cement Paste-Aggregate Interfaces, Part Ii: Significance Of Transition Zones On Physical And Mechanical Properties Of Portland Cement Mortar, Turng-Fang F. Lee, Menashi D. Cohen Jan 1998

Strength And Durability Of Concrete: Effects Of Cement Paste-Aggregate Interfaces, Part Ii: Significance Of Transition Zones On Physical And Mechanical Properties Of Portland Cement Mortar, Turng-Fang F. Lee, Menashi D. Cohen

JTRP Technical Reports

This research was based on a two-part basic research investigation studying the effects of cement paste-aggregate interfaces (or interfacial transition zones-HZ) on strength and durability of concrete. Part I dealt with the theoretical study and Part II dealt with the experimental. Part I, the theoretical part, illustrates the effect of ITZ on the concrete properties by assuming its elastic moduli to be varied continuously in the region. A four-phase composite model is employed and three functions are chosen to model the moduli variation in the ITZ. A theoretical solution for an n-layered spherical inclusion model is used to estimate the …


Integration Of Real-Time Air Pollution Parameters Into The Decision Making Process Regarding Highway Construction Work Zone Traffic Flow Requirements (Phase 1), Ouattara Fatogoma, Todd A. Premo, Robert Bertram Jacko Jan 1998

Integration Of Real-Time Air Pollution Parameters Into The Decision Making Process Regarding Highway Construction Work Zone Traffic Flow Requirements (Phase 1), Ouattara Fatogoma, Todd A. Premo, Robert Bertram Jacko

JTRP Technical Reports

The Midac Fourier Transform Infrared air monitoring system was used to measure real-time vehicular exhaust emission concentrations of carbon monoxide (CO) and hydrocarbons (HCs) during the Purdue Vehicle Emission Monitoring and Modeling Project (PVEMP) conducted in spring and summer 1997. The experiments took place on the Borman Expressway, in Gary. Indiana and on 1-65, south of Lafayette, Indiana Concurrently, two speed-readings were acquired from the passing vehicles in the vicinity of the air monitoring system using a hand-held laser gun. The speeds were integrated to determine the speeds and accelerations of the passing vehicles at the spectrometer. An 8-mm camcorder …


Modeling And Optimization Of The Indiana Lane Merge Control System On Approaches To Freeway Work Zones, Part I, Andrzej P. Tarko, Sreenivasulu R. Kanipakapatnam, Jason S. Wasson Jan 1998

Modeling And Optimization Of The Indiana Lane Merge Control System On Approaches To Freeway Work Zones, Part I, Andrzej P. Tarko, Sreenivasulu R. Kanipakapatnam, Jason S. Wasson

JTRP Technical Reports

Severe traffic turbulence on entry sections of freeway work zones increases the delays and risk of crash. A new Indiana Department of Transportation system called Indiana Merge Lane System (IMLS) creates a dynamic no passing zone on the approach to the freeway work zone through the sequence of DO NOT PASS signs. The system is thought to encourage drivers to switch lanes well upstream of the discontinuous lane taper where the merging maneuver is safer and less intrusive. The IMLS is expected to impact drivers’ behavior, their perception of the traffic conditions, and traffic safety.

This research is focused on: …


Strength And Durability Of Concrete: Effects Of Cement Paste-Aggregate Interfaces, Part I: Theoretical Study On Influence Of Interfacial Transition Zone On Properties Of Concrete Materials, Yiguo Zhang, Wai-Fah Chen Jan 1998

Strength And Durability Of Concrete: Effects Of Cement Paste-Aggregate Interfaces, Part I: Theoretical Study On Influence Of Interfacial Transition Zone On Properties Of Concrete Materials, Yiguo Zhang, Wai-Fah Chen

JTRP Technical Reports

This research was based on a two-part basic research investigation studying the effects of cement paste-aggregate interfaces (or interfacial transition zones-HZ) on strength and durability of concrete. Part I dealt with the theoretical study and Part II dealt with the experimental. Part I, the theoretical part, illustrates the effect of ITZ on the concrete properties by assuming its elastic moduli to be varied continuously in the region. A four-phase composite model is employed and three functions are chosen to model the moduli variation in the ITZ. A theoretical solution for an n-layered spherical inclusion model is used to estimate the …


Assessing And Updating Indot's Traffic Monitoring System For Highways, Volume 1 - Main Report, Samuel Labi, Jon D. Fricker Jan 1998

Assessing And Updating Indot's Traffic Monitoring System For Highways, Volume 1 - Main Report, Samuel Labi, Jon D. Fricker

JTRP Technical Reports

No abstract provided.


Geotechnical Performance Of Highway Embankment Constructed Using Waste Foundry Sand, Patrick J. Fox, David G. Mast Jan 1998

Geotechnical Performance Of Highway Embankment Constructed Using Waste Foundry Sand, Patrick J. Fox, David G. Mast

JTRP Technical Reports

The purpose of this study was to evaluate the use of waste foundry sand (WFS) as a highway embankment material in a fullscale field demonstration project. This evaluation included geotechnical concerns, such as deformation, strength, hydraulic conductivity, and ease of construction. The report presents an introduction and previous research concerning WFS use in highway construction. A geotechnical laboratory testing program characterized the WFS used in the project, which was a waste product of Auburn Foundry, Inc., located in Auburn, Indiana. This study was also a part of the FHWA Priorities Technology Program. The project site was a 275 m section …


Implementation Of Subgrade Resilient Modulus For Pavement (2 Volumes), A. G. Altschaeffl, Ross A. Duckworth, M. K. Clough Jan 1998

Implementation Of Subgrade Resilient Modulus For Pavement (2 Volumes), A. G. Altschaeffl, Ross A. Duckworth, M. K. Clough

JTRP Technical Reports

This Implementation Project had two purposes: 1) to update the INDOT Division of Materials and Tests’ laboratory equipment and train personnel to properly conduct the testing for subgrade resilient modulus in accordance with new AASHTO testing protocol (AASHTO T0294-94(; 2) to educate and train the geotechnical engineering section in the procedures for determining the design resilient modulus with minimum required testing, while using the database of the previous report on this subject, FHWA/IN/JHRP-92/23, “Subgrade Resilient Modulus for Pavement Design and Evaluation,” Part I of the Final Report, the detailed “Laboratory Procedures Manual,” has been written for use by laboratory technicians …


Implementation Of Subgrade Resilient Modulus For Pavement: Laboratory Procedures Manual (2 Volumes), A. G. Altschaeffl, Ross A. Duckworth, M. K. Clough Jan 1998

Implementation Of Subgrade Resilient Modulus For Pavement: Laboratory Procedures Manual (2 Volumes), A. G. Altschaeffl, Ross A. Duckworth, M. K. Clough

JTRP Technical Reports

This Implementation Project had two purposes: 1) to update the INDOT Division of Materials and Tests’ laboratory equipment and train personnel to properly conduct the testing for subgrade resilient modulus in accordance with new AASHTO testing protocol (AASHTO T0294-94(; 2) to educate and train the geotechnical engineering section in the procedures for determining the design resilient modulus with minimum required testing, while using the database of the previous report on this subject, FHWA/IN/JHRP-92/23, “Subgrade Resilient Modulus for Pavement Design and Evaluation,” Part I of the Final Report, the detailed “Laboratory Procedures Manual,” has been written for use by laboratory technicians …


Identification And Quantification Of Radionuclides In Coal Ash, James E. Alleman, Franklyn M. Clikeman, Thomas Skronski Jan 1998

Identification And Quantification Of Radionuclides In Coal Ash, James E. Alleman, Franklyn M. Clikeman, Thomas Skronski

JTRP Technical Reports

One of the important environmental issues raised recently in regard to coal ash reuse for highway construction purposes (e.g., embankment development) is that of worker, and public, exposure to radiation which might possibly be emitted by these types of residuals. Radiation emission is, in fact, a natural phenomenon for most materials, both natural and man-made, but in the case of coal ash residuals the process of combustion produces an inevitable concentration of radionuclides from the original virgin coal. INDOT’s corresponding environmental concern consequently focuses on the following basic question: does this magnification of radionuclides found within these coal ash residuals …


Modeling And Optimization Of The Indiana Land Merge Control System On Approaches To Freeway Work Zones, Part I: Implementation Report; Part Ii: Manual Of The Indiana Lane Merge Control System (2 Volumes), Andrzej P. Tarko, Sreenivasulu R. Kanipakapatnam, Jason S. Wasson Jan 1998

Modeling And Optimization Of The Indiana Land Merge Control System On Approaches To Freeway Work Zones, Part I: Implementation Report; Part Ii: Manual Of The Indiana Lane Merge Control System (2 Volumes), Andrzej P. Tarko, Sreenivasulu R. Kanipakapatnam, Jason S. Wasson

JTRP Technical Reports

Severe traffic turbulence on entry sections of freeway work zones increases the delays and risk of crash. A new Indiana Department of Transportation system called Indiana Merge Lane System (IMLS) creates a dynamic no passing zone on the approach to the freeway work zone through the sequence of DO NOT PASS signs. The system is thought to encourage drivers to switch lanes well upstream of the discontinuous lane taper where the merging maneuver is safer and less intrusive. The IMLS is expected to impact drivers’ behavior, their perception of the traffic conditions, and traffic safety. This research is focused on: …


Performance Evaluation Of A Highway Embankment Constructed Using Waste Foundry Sand, Barry K. Partridge, James E. Alleman Jan 1998

Performance Evaluation Of A Highway Embankment Constructed Using Waste Foundry Sand, Barry K. Partridge, James E. Alleman

JTRP Technical Reports

Over 9 million Mg of waste foundry sands (WFS) are produced annually in the United States as a by-product of the metal casting industry. The majority of WFS are deposited in restricted or sanitary waste landfills. Considerable savings is available to the metal casting industry through the development of reuse applications for their WFS and generators are often willing to provide WFS to a job site at no cost to the end user. Laboratory investigations have indicated that WFS from ferrous foundries can provide the necessary engineering properties for a highway embankment and that the MicrotoxTM bioassay test can be …


Book Pricing Update-Reference Publishing In 1997, Dan Miller Dec 1997

Book Pricing Update-Reference Publishing In 1997, Dan Miller

Against the Grain

No abstract provided.


Op-Ed-Opinions And Editorials-The Crisis Of The Scholarly Monograph Conference, Thomas Bacher Dec 1997

Op-Ed-Opinions And Editorials-The Crisis Of The Scholarly Monograph Conference, Thomas Bacher

Against the Grain

No abstract provided.


Tim Bradbury-Vice President, Galenet, Katina Strauch Dec 1997

Tim Bradbury-Vice President, Galenet, Katina Strauch

Against the Grain

No abstract provided.


And They Were There-Reports Of Meetings-Uksg And The Specialized Scholarly Monograph In Crisis, Sever Bordeianu, Julia Gelfand Dec 1997

And They Were There-Reports Of Meetings-Uksg And The Specialized Scholarly Monograph In Crisis, Sever Bordeianu, Julia Gelfand

Against the Grain

No abstract provided.


From The Reference Desk, Tom Gilson Dec 1997

From The Reference Desk, Tom Gilson

Against the Grain

No abstract provided.


Letters To The Editor, Katina Strauch Dec 1997

Letters To The Editor, Katina Strauch

Against the Grain

No abstract provided.


Lindsay And Howes, Pam Cenzer Dec 1997

Lindsay And Howes, Pam Cenzer

Against the Grain

No abstract provided.


A Parallel Algorithm For Determining Orientations Of Biological Macro- Molecules Imaged By Electron Microscopy, Timothy S. Baker, Ionana M. Boier Martin, Dan C. Marinescu Dec 1997

A Parallel Algorithm For Determining Orientations Of Biological Macro- Molecules Imaged By Electron Microscopy, Timothy S. Baker, Ionana M. Boier Martin, Dan C. Marinescu

Department of Computer Science Technical Reports

No abstract provided.


The Platonic Spheroids, Jörg Peters, Leif Kobbelt Dec 1997

The Platonic Spheroids, Jörg Peters, Leif Kobbelt

Department of Computer Science Technical Reports

No abstract provided.


Interactive Visualization Of Multi- Dimensional Scientific Data (Ph.D. Thesis), Daniel R. Schikore Dec 1997

Interactive Visualization Of Multi- Dimensional Scientific Data (Ph.D. Thesis), Daniel R. Schikore

Department of Computer Science Technical Reports

No abstract provided.


A Comparison Of Partial Coherence And Singular Value Partial Field Decomposition In The Context Of Nearfield Acoustical Holography, J. Stuart Bolton, Hyu-Sang Kwon, J. K. Hammond Dec 1997

A Comparison Of Partial Coherence And Singular Value Partial Field Decomposition In The Context Of Nearfield Acoustical Holography, J. Stuart Bolton, Hyu-Sang Kwon, J. K. Hammond

Publications of the Ray W. Herrick Laboratories

No abstract provided.


Plane Wave Reflection Coefficient Estimation By Use Of Spatial Parametric Signal Modeling, J. Stuart Bolton, Hyu-Sang Kwon Dec 1997

Plane Wave Reflection Coefficient Estimation By Use Of Spatial Parametric Signal Modeling, J. Stuart Bolton, Hyu-Sang Kwon

Publications of the Ray W. Herrick Laboratories

No abstract provided.


Faster Muse Csp Arc Consistency Algorithms, Mary P. Harper, Christopher M. White, Randall A. Helzerman, Stephen A. Hockema Dec 1997

Faster Muse Csp Arc Consistency Algorithms, Mary P. Harper, Christopher M. White, Randall A. Helzerman, Stephen A. Hockema

Department of Electrical and Computer Engineering Technical Reports

MUSE CSP (Multiply SEgmented Constraint Satisfaction Problem) [5, 61 is an extension to the constraint satisfaction problem (CSP) which is especially useful for problems that segment into riultiple instances of CSP that share variables. In Belzerman and Harper [6], the concepts of MUSE node, arc, and path consistency were defined and algorithms for MUSE arc consistency, MUSE AC-1, and MUSE path consistency were developed. MUSE AC-1 is similar to the CSP arc consistency algorithm AC-4 [ l j ] . Recently, Bessikre developed a new algorithm, AC-6 [I], which has the same worst-case running time as AC-4 and is faster …


A Model For Leakage Control By Mos Transistlor Stacking, Mark C. Johnson, Dinesh Somasekhar, Kaushik Roy Dec 1997

A Model For Leakage Control By Mos Transistlor Stacking, Mark C. Johnson, Dinesh Somasekhar, Kaushik Roy

Department of Electrical and Computer Engineering Technical Reports

Prevailing CMOS design practice has been very conservative with regard to choice of transistor threshold voltage, so as to avoid the difficult problems of threshold variations and high leakage currclnts. It is becoming necessary to scale threshold voltages more aggress~vely in order to obtain further power reduction, performance improven~ent, and integration density. Substantial leakage reduction can be achi~ved in single Vt designs by stacking low \.'t transistors. We have derived a simplified theoretical model which predicts the quiescent leakage current and the worst case time required to settle to quiescent levels in a single stack of transistors. This model can …


Supremum Distribution Of Gaussian Processes And Queueing Analysis Including Long-Range Dependence And Self-Similarity, Jinwoo Choe, Ness B. Shroff Dec 1997

Supremum Distribution Of Gaussian Processes And Queueing Analysis Including Long-Range Dependence And Self-Similarity, Jinwoo Choe, Ness B. Shroff

Department of Electrical and Computer Engineering Technical Reports

In this report we study the supremum distribution of a general class of Gaussian processes {Xt : t 2 0) having stationary increments. This distribution is directly related to the steady state queue length distribution of a queueing system, and hence its study is also important for various applications including communication network analysis. Our study is based on Extreme Value Theory and we show that log P({s~p~X:>t ~> x)) + asymptotically grows at most (on the order of) log x, where m, corresponds to the reciprocal of the maximum (normalized) variance of Xt. This result is considerably stronger than …


Compact Recognizers Of Episode Sequences, Alberto Apostolico, Mikhail J. Attalah Dec 1997

Compact Recognizers Of Episode Sequences, Alberto Apostolico, Mikhail J. Attalah

Department of Computer Science Technical Reports

No abstract provided.


Collaborative Environments For Scientific Computing The Task Of Algorithm/Software Selection, N. Ramakrishnan, Anupam Joshi, Elias N. Houstis, John R. Rice Dec 1997

Collaborative Environments For Scientific Computing The Task Of Algorithm/Software Selection, N. Ramakrishnan, Anupam Joshi, Elias N. Houstis, John R. Rice

Department of Computer Science Technical Reports

No abstract provided.