Digital Commons Network^™

Pavement Drainage And Pavement-Shoulder Joint Evaluation And Rehabilitation, Zubair Ahmed, Thomas D. White, Philippe L. Bourdeau

JTRP Technical Reports

The objectives of this research were i) to evaluate the performance of pavement subdrainage systems ii) study the behavior of moisture conditions below pavements and iii) provide recommendations for unproved drainage criteria based on analysis of field data. Existing and retrofitted subdrainage collector systems were inspected through external visual inspection in combination with a probe for internal inspection. Distresses and deficiencies in construction observed were listed and compiled on video. A methodology for inspection is presented that can be used by highway agencies in monitoring the condition, need for maintenance, and performance of collector systems. Pavements with various types of …

Chemical Admixtures Of Highway Concrete: Fundamental Research And A Guide To Usage, Part Ii - Quantitative Analysis Of Interactions Between Portland Cements And Superplasticizers, Sidney Diamond, Keisuke Matsukawa

JTRP Technical Reports

This report is made up to two distinct elements. Part II consists of a detailed record of laboratory research carried out to develop a pattern for physicochemical investigation of admixture effects. The procedures developed were then applied to the study of the detailed chemical interactions undergone by several different kinds of superplasticizer admixtures studied with a range of cements displaying various characteristics. Specific conclusions were drawn concerning the effects on superplasticizer effectiveness of certain cement characteristics, especially nature of the gypsum component and of cement alkali content.

The Association Between The Level Of International Diversification And Risk, Stephen R. Goldberg, Frank L. Heflin

Purdue CIBER Working Papers

This study analyzes the association between the degree of international involvement (DOI) and risk. Both systematic risk (measured by the market model beta) and total rishk (measured by variance of return) are analyzed. Betas of fully diversified foreign stock portfolios are shown to be lower than betas of domestic portfolios. Therefore, if the beta of a foreign investment by a U.S. firm is equal to the average beta of an investment in the foreign market, then overall firm beta will deverase as DOI increases (hypothesis). While total risk might be decreased due to the diversification provided by increasing DOI, currency, …

Collaborative Multimedia Scientific Design In Shastra, Vinod Anupam, Chandrajit L. Bajaj

Department of Computer Science Technical Reports

No abstract provided.

Oxidative Mechanisms In Arterial Distension Injury: Observations Relevant To Restenosis After Angioplasty, Charles F. Babbs, Yuan Zhong

Weldon School of Biomedical Engineering Faculty Working Papers

Background: To explore the hypothesis that tissue iron and reactive oxygen species, including superoxide (O2), mediate acute inflammatory and late hyperplastic responses to vascular injury, we studied experimental overdistension of normal carotid and femoral arteries in dogs. Experimental design: Arterial segments isolated in situ were distended with Ringer solution at 2 atmospheres pressure. In initial experiments the arteries were excised immediately after distension and immersed in diaminobenzidine solutions containing Mn++ ions to initiate histochemical reactions for O2. In other experiments distended arterial segments were reperfused with arterial blood in the presence or absence of the iron chelator, deferoxamine, or the …

A Set Of Orthogonal Polynomials Induced By A Given Orthogonal Polynomial, Walter Gautschi, Shikang Li

Department of Computer Science Technical Reports

No abstract provided.

Remote Memory Backing Storage For Distributed Virtual Memory Operating Systems (Thesis), James Griffoen

Department of Computer Science Technical Reports

No abstract provided.

Data On English To Japanese Transliteration Of Technical Terminology, Yun-Sun Kang, Anthony A. Maciejewski

Department of Electrical and Computer Engineering Technical Reports

No abstract.

Observing Reusable Password Choices, Eugene H. Spafford

Department of Computer Science Technical Reports

No abstract provided.

Future Research Directions In Problem Solving Environments For Computational Science, Stratis Gallopoulos, Elias N. Houstis, John R. Rice

Department of Computer Science Technical Reports

No abstract provided.

Update On The Strategic Highway Research Program (Shrp), Damian J. Kulash

Purdue Road School

No abstract provided.

Bibliography For Work In Comparative Literature And Culture, Steven Tötösy De Zepetnek

CLCWeb Library

No abstract provided.

Reservable Transactions: An Approach For Reliable Multidatabase Transaction Management, Ahmed K. Elmagarmid, Jin Jing, James G. Mullen, Jamshid Sharif-Askary

Department of Computer Science Technical Reports

No abstract provided.

Software Forensics: Can We Track Code To Its Authors?, Eugene H. Spafford, Stephen A. Weeber

Department of Computer Science Technical Reports

No abstract provided.

Multiswitch Hardware Configuration, Douglas E. Comer, Victor Norman

Department of Computer Science Technical Reports

No abstract provided.

Hydro-Acoustic Communication System Based On A Neural Network Error Corrector, M. F. Tenorio, R. Z. Machado F., J. R. M. Silva

Department of Electrical and Computer Engineering Technical Reports

This study describes an application of Neural Networks for transmission errors identification and correction in binary messages. The network is used as a classifier of detected hydro-acoustic signals into one of a possible alphabet of symbols. The algorithm used is a Hamming-type Neural Networks classifier associated with the transmission of a Hamming code. This system can detect and correct all transmission errors if the number of errors is less than or equal to half the Hamming distance between transmitted symbols minus one. Symbols to be transmitted are chosen and associated to messages, assuring that bit to bit non similarities result …

Laboratory Evaluation Of Prefabricated Highway Edge Drains, Ahmed Mohamed Elsharief

JTRP Technical Reports

This study evaluated prefabricated highway edge drains to improve the existing practice and to set guidelines for their proper selection. Two primary evaluations received attention: the first was the effect of installation and in service loading on the hydraulic and strength capacities of a prefabricated highway edge drain; and the second was the performance of the geotextile filter.

A limited field evaluation of prefabricated highway drains indicated structural failure of the core and an inefficient geotextile. Based on, the field study, laboratory testing and theoretical modeling, guidelines were given for the strength and hydraulic requirements of the drain. A retention …

Multi-Stage Water And Ammonia Refrigeration Systems In The Light Of Ozone Hole Problem, M. Prasad

International Refrigeration and Air Conditioning Conference

No abstract provided.

Theoretical Model Of Back-Pressure Chamber For Scroll Compressor, J. Zhu, D. Wang, D. Zhang

International Compressor Engineering Conference

No abstract provided.

Developed Mathematical Model Of The Self-Acting Valves Of The Reciprocating Compressor And Its Application For Tongue Valves, M. Luszczycki, P. Cyklis, J. Zelasko

International Compressor Engineering Conference

No abstract provided.

Research On Self Adjusting Back-Pressure Mechanism Of Scroll Compressor, J. Zhu, D. Wang, D. Zhang

International Compressor Engineering Conference

No abstract provided.

Low Flow Displacement Compressor: Thermodynamical Process Analysis, M. M. Perevozchikov, I. B. Pirumov, B. S. Chrustalyov, K. S. M. Ignatiev, A. Taha

International Compressor Engineering Conference

No abstract provided.

Calculating Model And Experimental Investigation Of Gas Leakage, X. Yuan, Z. Chen, Z. Fan

International Compressor Engineering Conference

No abstract provided.

Numerical Simulation Of Gas-Dynamic And Heat-Transfer Processes In Two-Stage, Very High-Pressure Gas Compressors, W. H. Hsieh, T. T. Wu, C. L. Yeh, K. K. Kuo

International Compressor Engineering Conference

No abstract provided.

The Relations Used To Analyze The Phase Equilibrium Properties Of Binary Refrigerant Mixtures, G. Xie, K. Dang, Y. Wu, Z. Chen

International Refrigeration and Air Conditioning Conference

No abstract provided.

Advances In Non-Vapor-Compression Refrigeration Systems, T. G. Statt

International Refrigeration and Air Conditioning Conference

No abstract provided.

Literacy Networks: Toward Cultural Studies Of Writing And Tutoring, John Trimbur

The Writing Center Journal

No abstract provided.

What Do We Talk About When We Talk About Our Metaphors: A Cultural Critique Of Clinic, Lab, And Center, Peter Carino

The Writing Center Journal

No abstract provided.

Unix And Security: The Influences Of History, Eugene H. Spafford

Department of Computer Science Technical Reports

No abstract provided.

Visualization Of Four Dimensional Space And Its Applications (Ph.D. Thesis), Jianhua Zhou

Department of Computer Science Technical Reports

No abstract provided.