Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Purdue University

Discipline
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 9631 - 9660 of 12097

Full-Text Articles in Entire DC Network

Edge Weight Reduction Problems In Directed, Acyclic Graphs, Susanne E. Hambrusch, Hung-Yi Tu Jan 1994

Edge Weight Reduction Problems In Directed, Acyclic Graphs, Susanne E. Hambrusch, Hung-Yi Tu

Department of Computer Science Technical Reports

No abstract provided.


Sbl- The Structural Biology Language, Marius A. Cornea-Hasegan, Dan C. Marinescu Jan 1994

Sbl- The Structural Biology Language, Marius A. Cornea-Hasegan, Dan C. Marinescu

Department of Computer Science Technical Reports

No abstract provided.


Maintaining Consistency In Multidatabase Systems: A Comprehensive Study, Aidong Zhang, Bharat K. Bhargava Jan 1994

Maintaining Consistency In Multidatabase Systems: A Comprehensive Study, Aidong Zhang, Bharat K. Bhargava

Department of Computer Science Technical Reports

No abstract provided.


Principles And Realization Strategies Of Intregrating Autonomous Software Systems: Extension Of Multidatabase Transaction Management Techniques, Aidong Zhang, Bharat Bhargava Jan 1994

Principles And Realization Strategies Of Intregrating Autonomous Software Systems: Extension Of Multidatabase Transaction Management Techniques, Aidong Zhang, Bharat Bhargava

Department of Computer Science Technical Reports

No abstract provided.


Adiabatic Capillary Tube Expansion Devices Working With Cfc-12, Hcfc-22 And Hfc-134a, F. Escanes, C. D. Perez-Segarra, A. Oliva Jan 1994

Adiabatic Capillary Tube Expansion Devices Working With Cfc-12, Hcfc-22 And Hfc-134a, F. Escanes, C. D. Perez-Segarra, A. Oliva

International Refrigeration and Air Conditioning Conference

No abstract provided.


Revisiting "The Idea Of A Writing Center", Stephen M. North Jan 1994

Revisiting "The Idea Of A Writing Center", Stephen M. North

The Writing Center Journal

No abstract provided.


Writing Centers And The Idea Of Consultancy, William Mccall Jan 1994

Writing Centers And The Idea Of Consultancy, William Mccall

The Writing Center Journal

No abstract provided.


An Evaluation Of The Strategic Highway Research Project Packing Handbook, Kenneth P. Cox, Charles F. Scholer, Menashi D. Cohen Jan 1994

An Evaluation Of The Strategic Highway Research Project Packing Handbook, Kenneth P. Cox, Charles F. Scholer, Menashi D. Cohen

JTRP Technical Reports

The objective of this research is to evaluate the use of the November 8, 1991 SHRP C-206 report entitled, “Packing Handbook – A Guide to the Optimal Gradation of Concrete Aggregates”. The purpose of the Packing Handbook is to determine the optimal combination of fine and coarse aggregates for concrete from available aggregate sources. Through the use of tables provided in the Packing Handbook, and given sources with known aggregate gradations and void contents, the relative proportion of each aggregate (coarse and fine) is obtained. Concretes made using the Packing Handbook recommendations of aggregate proportioning were compared to concretes used …


Really Useful Knowledge: A Cultural Studies Agenda For Writing Centers, Marilyn M. Cooper Jan 1994

Really Useful Knowledge: A Cultural Studies Agenda For Writing Centers, Marilyn M. Cooper

The Writing Center Journal

No abstract provided.


"Hanging Your Alias On Their Scene": Writing Centers, Graffiti, And Style, Cynthia Haynes-Burton Jan 1994

"Hanging Your Alias On Their Scene": Writing Centers, Graffiti, And Style, Cynthia Haynes-Burton

The Writing Center Journal

No abstract provided.


Personality Preferences, Tutoring Styles, And Implications For Tutor Training, Thomas C. Thompson Jan 1994

Personality Preferences, Tutoring Styles, And Implications For Tutor Training, Thomas C. Thompson

The Writing Center Journal

No abstract provided.


The Computer Aided System For Planning Efficient Routes, J. R. Wright Jan 1994

The Computer Aided System For Planning Efficient Routes, J. R. Wright

JTRP Technical Reports

The Indiana Department of Transportation has sponsored the design and implementation of a decision support system for routing highway maintenance vehicles – the Computer Aided System for Planning Efficient Routes (CASPER). Designed for solving multiobjective route design problems, CASPER has been used by agency personnel to design routes for winter maintenance vehicles with significant results: cost savings of more than $9-million to the State of Indiana through more efficient use of materials, equipment, and personnel, while at the same time significant improvement in overall level of network and public service. CASPER integrates 1: an extensive spatial network database (GIS/CAD), 2) …


An Indot Lessons Learned Constructability Program And Integrated Multimedia System, Bob G. Mccullouch, Robert Michael Patty Jan 1994

An Indot Lessons Learned Constructability Program And Integrated Multimedia System, Bob G. Mccullouch, Robert Michael Patty

JTRP Technical Reports

To improve constructability, experienced design and construction engineers often select processes and develop details that require less labor, equipment, or management resources to build. These innovative ideas, enabling circumstances, and their effect on the construction process are not usually recorded in a reusable format. Without such a mechanism, recalling this experience under the appropriate circumstances, or transferring the technology to new management has generally not happened. Further, civil engineers are generally educated to optimize cost by minimizing the material quantity. Through experience gained after graduation, they are expected to pick up options for engineering impact on the labor, equipment, and …


Development Of A Strategy For Compliance With Epa And Osha Regulation Application To Indot Facilities, Lynn A. Corson Jan 1994

Development Of A Strategy For Compliance With Epa And Osha Regulation Application To Indot Facilities, Lynn A. Corson

JTRP Technical Reports

Between March 1990 and November 1992, a sample of 27 field and support facilities operated by the Indiana Department of Transportation were visited by staff of the Environmental Management and education Program, School of Civil Engineering, Purdue University, for the purpose of conducting workplace assessments to ascertain the department’s compliance with federal and state environmental and worker protection regulations. Thirty-eight different department operations and nine different employee functions were observed and analyzed. There were compliance areas at every facility visited which needed strengthening. A total of 222 recommendations for strengthening those areas are included in the research report. The department …


Guidelines For Permitting Overloads, Part 2: Statistical Analysis Of Overload Vehicle Effects On Indiana Highway Bridges, Donald W. White, J. A. Ramirez, N Prasad, Thomas Kuczek Jan 1994

Guidelines For Permitting Overloads, Part 2: Statistical Analysis Of Overload Vehicle Effects On Indiana Highway Bridges, Donald W. White, J. A. Ramirez, N Prasad, Thomas Kuczek

JTRP Technical Reports

This report summarizes an analytical investigation carried out to develop a set of guidelines for regulation of overload vehicles in Indiana. A formula based first phase evaluation of overload permit requests is developed through statistical study of the rating of a representative sample of the highway bridges in Indiana using a representative sample of overload vehicles observed in the state in 1990 and 1991 plus the HS 20 design vehicle and the two Indiana Toll Road loadings. A sample of 148 bridges is chosen from a total population of 3700 Indiana highway bridges using a proportionate stratified random sampling process. …


Detection Of Harmonic Loads On A Power System Under Practical Conditions Of Non-Sinusoidal Voltages And Variable Frequency, Naveen Jaluria Dec 1993

Detection Of Harmonic Loads On A Power System Under Practical Conditions Of Non-Sinusoidal Voltages And Variable Frequency, Naveen Jaluria

Department of Electrical and Computer Engineering Technical Reports

The purpose of this work is to develop an on-line measurement technique, which could be used iteratively to detect the presence of harmonic loads on the power system. This has to be achieved in an environment of non-sinusoidal voltage waveforms and variable frequency as is the case in practice. This is achieved by looking at the relative phase relationship between the voltage and current at each harmonic frequency. From this information, the average harmonic power flowing in the load circuit can be found out. If the load is injecting average power back to the source at harmonic frequencies, then it …


Probing Tcp Implementations, Douglas E. Comer, John C. Lin Dec 1993

Probing Tcp Implementations, Douglas E. Comer, John C. Lin

Department of Computer Science Technical Reports

No abstract provided.


An Optimal O(Log Log N) Time Parallel Algorithm For Detecting All Squares In A String, Albert Apostolico, Dany Breslauer Dec 1993

An Optimal O(Log Log N) Time Parallel Algorithm For Detecting All Squares In A String, Albert Apostolico, Dany Breslauer

Department of Computer Science Technical Reports

No abstract provided.


C3: A Parallel Model For Coarse-Grained Machines, Susanne E. Hambrusch, Ashfaq A. Khokhar Dec 1993

C3: A Parallel Model For Coarse-Grained Machines, Susanne E. Hambrusch, Ashfaq A. Khokhar

Department of Computer Science Technical Reports

No abstract provided.


Toward Virtual Digital Mammograms For Research And Training In Tumor Detection, Charles F. Babbs, Leslie A. Geddes Dec 1993

Toward Virtual Digital Mammograms For Research And Training In Tumor Detection, Charles F. Babbs, Leslie A. Geddes

Weldon School of Biomedical Engineering Faculty Working Papers

Research in the processing, compression, transmission, and interpretation of digital radiographic images requires evaluation of a wide variety of test images, varying in format, in spatial resolution, and in anatomic content. To evaluate the diagnostic performance of observers using novel versus conventional image formats, large numbers of test images containing known abnormalities are required. This report describes a method for creating high resolution, virtual digital mammograms from computational models of the human breast that include branched lobulated ducts and suspensory ligaments embedded in fatty subcutaneous tissue. Breast phantoms may include any of three types of simulated tumors (fibroadenomas, invasive ductal …


Transmission Scheduling Of Multichannel System For Communication Of Pre-Orchestrated Multimedia Information, Miae Woo, Arif Ghafoor Dec 1993

Transmission Scheduling Of Multichannel System For Communication Of Pre-Orchestrated Multimedia Information, Miae Woo, Arif Ghafoor

Department of Electrical and Computer Engineering Technical Reports

Communication of multimetlia information over broadband networks dictates stringent QOS requirements. In this report, we propose a commnnication model for preorchestrated multimedia information. The proposed model, calletl XOCPN, specifies the performance parameters to handle mnltimedia media. effectively as well as provides resynchronization action to compensate anomalies thle to random delays introduced by the network. The model is used to determine the optimal number of channels needed to transmit the multimedia information. Subsequently, we consider a channel-deficient system having homogeneous channels (i.e. channels with identical characteristics) and prove that scheduling transmission of multimedia data in this system is an NP-hard problem. …


Correctness Proof Of A Geometric Constraint Solver, Ioannis Fudos, Christoph M. Hoffmann Dec 1993

Correctness Proof Of A Geometric Constraint Solver, Ioannis Fudos, Christoph M. Hoffmann

Department of Computer Science Technical Reports

No abstract provided.


Pre-Clinical Roc Studies Of Digital Stereomammography, Jean Hsu, Charles F. Babbs, David M. Chelberg, Zygmunt Pizlo, Edward J. Delp Dec 1993

Pre-Clinical Roc Studies Of Digital Stereomammography, Jean Hsu, Charles F. Babbs, David M. Chelberg, Zygmunt Pizlo, Edward J. Delp

Department of Electrical and Computer Engineering Technical Reports

This paper reports the diagnostic performance of observers in detecting abnormalities in computer generated mammogram-like images. A mathematical model of the human breast is defined in which breast tissues are simulated by spheres of different sizes and densities. Images ar'e generated by casting rays from a specified source, through the: model, and onto an image plane. Observer performance with two viewing modalities (stereo versus mono) is compared. In the stereo viewing mode, left and right images are presented to the observer (wearing liquid crystal shuttle glasses), such that the left eye sees the left image only and the right eye …


Modeling And Analysis Of Distribution Load Currents Produced By An Ad Justable Speed Drive Heat Pump, Stephen Paul Hoffman Dec 1993

Modeling And Analysis Of Distribution Load Currents Produced By An Ad Justable Speed Drive Heat Pump, Stephen Paul Hoffman

Department of Electrical and Computer Engineering Technical Reports

A number of demand side management techniques have been proposed for the efficient use of electric power in the commercial and residential sector. The adjustable speed drive heat pump is a technology which has the prospect of decreasing power demands for space heating. This design has the advantage over conventional designs of higher efficiency and, potentially, reduction of peak power demand. Its main disadvantage is higher cost. Further, it has the disadvantage that it produces a load current with a substantial harmonic content. This load current waveform is injected into the distribution system and causes extra losses in the distribution …


A Probabilistic Analysis Of A String Editing Problem And Its Variations, Guy Louchard, Wojciech Szpankowski Dec 1993

A Probabilistic Analysis Of A String Editing Problem And Its Variations, Guy Louchard, Wojciech Szpankowski

Department of Computer Science Technical Reports

No abstract provided.


Data Structures And Algorithms For The String Statistics Problem, Alberto Apostolico, Franco P. Preparata Dec 1993

Data Structures And Algorithms For The String Statistics Problem, Alberto Apostolico, Franco P. Preparata

Department of Computer Science Technical Reports

No abstract provided.


Extending Multidatabase Transaction Management Techniques To Software Development Environments, Aidong Zhang, Omran Bukhres Dec 1993

Extending Multidatabase Transaction Management Techniques To Software Development Environments, Aidong Zhang, Omran Bukhres

Department of Computer Science Technical Reports

No abstract provided.


The Use Of Neural Networks To Support "Intelligent" Scientific Computing, Anupam Joshi, Csanjiva Weerawarana, Elias N. Houstis Dec 1993

The Use Of Neural Networks To Support "Intelligent" Scientific Computing, Anupam Joshi, Csanjiva Weerawarana, Elias N. Houstis

Department of Computer Science Technical Reports

No abstract provided.


Object-Orientation In Multidatabase Systems, Evaggelia Pitoura, Omran Bukhres, Ahmed K. Elmagarmid Dec 1993

Object-Orientation In Multidatabase Systems, Evaggelia Pitoura, Omran Bukhres, Ahmed K. Elmagarmid

Department of Computer Science Technical Reports

No abstract provided.


Scheduling Support Mechanisms For Autonomous, Heterogeneous, Distributed Systems (Ph.D. Thesis), Steve J. Chapin Dec 1993

Scheduling Support Mechanisms For Autonomous, Heterogeneous, Distributed Systems (Ph.D. Thesis), Steve J. Chapin

Department of Computer Science Technical Reports

No abstract provided.