Engineering Commons^™

Opal Launch Opportunity, Robert J. Twiggs

Robert "Bob" Twiggs STEM Education Collection

A PowerPoint Presentation created by Professor Bob Twiggs titled "OPAL Launch Opportunity" from February 3, 1999.

Lead Free Conductive Composites For Electrical Interconnections, Ravi F. Saraf

Department of Chemical and Biomolecular Engineering: Patents

An electrically conductive paste which includes a thermoplastic polymer, a conductive metal powder and an organic solvent system is disclosed. The invention further encompasses an electrically conductive composite which includes the aforementioned thermoplastic and metal, wherein the metal represents at least about 30% by volume, based on the total volume of the composite. The composite is formed from the paste under elevated temperature. The paste is employed in processes which involve electrically connecting electrical and electronic components under process conditions which convert the paste to the composite.

Lead Free Conductive Composites For Electrical Interconnections, Ravi F. Saraf

Department of Chemical and Biomolecular Engineering: Patents

An electrically conductive paste which includes a thermoplastic polymer, a conductive metal powder and an organic solvent system is disclosed. The invention further encompasses an electrically conductive composite which includes the aforementioned thermoplastic and metal, wherein the metal represents at least about 30% by volume, based on the total volume of the composite. The composite is formed from the paste under elevated temperature. The paste is employed in processes which involve electrically connecting electrical and electronic components under process conditions which convert the paste to the composite.

Lead Free Conductive Composites For Electrical Interconnections, Ravi F. Saraf

Department of Chemical and Biomolecular Engineering: Patents

An electrically conductive paste which includes a thermoplastic polymer, a conductive metal powder and an organic solvent system is disclosed. The invention further encompasses an electrically conductive composite which includes the aforementioned thermoplastic and metal, wherein the metal represents at least about 30% by volume, based on the total volume of the composite. The composite is formed from the paste under elevated temperature. The paste is employed in processes which involve electrically connecting electrical and electronic components under process conditions which convert the paste to the composite.

Ccfss Technical Bulletin February 1999, Wei-Wen Yu Center For Cold-Formed Steel Structures

CCFSS Technical Bulletins (1993 - 2020)

No abstract provided.

Early Evolution Of A Stratospheric Volcanic Eruption Cloud As Observed With Toms And Avhrr, David J. Schneider, William I. Rose, Larry R. Coke, Gregg J. Bluth, Ian E. Sprod, Arlin J. Krueger

Department of Geological and Mining Engineering and Sciences Publications

This paper is a detailed study of remote sensing data from the total ozone mapping spectrometer (TOMS) and the advanced very high resolution radiometer (AVHRR) satellite detectors, of the 1982 eruption of El Chichón, Mexico. The volcanic cloud/atmosphere interactions in the first four days of this eruption were investigated by combining ultraviolet retrievals to estimate the mass of sulfur dioxide in the volcanic cloud [Krueger et al., 1995] with thermal infrared retrievals of the size, optical depth, and mass of fine-grained (1–10 μm radius) volcanic ash [Wen and Rose, 1994]. Our study provides the first direct evidence of gravitational separation …

Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 15, Number 2, February 1999, College Of Engineering And Computer Science, Wright State University

BITs and PCs Newsletter

A ten page newsletter created by the Wright State University College of Engineering and Computer Science that addresses the current affairs of the college.

A Decision-Oriented Framework For Evaluating Deployment Strategies For Intelligent Transportation Systems, H.-S. Jacob Tsao

Faculty Publications

Because Intelligent Transportation Systems (ITS) R&D is performed for the ultimate deployment in the real world, deployment issues may limit design options for ITS concepts and technologies and, hence, can be viewed as constraints on ITS R&D. Therefore, ITS deployment issues must be studied at the outset of the R&D process. This paper develops a framework to help recognize and organize such issues. The findings can be used by ITS researchers in developing deployable ITS concepts and technologies and by ITS promoters in deploying ITS technologies having been developed already. Based on a focus on decisions impacting the deployment of …

Some Traffic Features At Freeway Bottlenecks, Michael J. Cassidy, Robert L. Bertini

Civil and Environmental Engineering

Observations from two freeway bottlenecks in and near Toronto, Canada indicate that the average rate vehicles discharge from a queue can be 10% lower than the flow measured prior to the queue's formation. Absent any influences from downstream, the queue discharge flows exhibited nearly stationary patterns that alternated between higher and lower rates. These alternating flow patterns were especially evident at one of the two sites, although the feature occurred at both sites during periods that immediately followed the onset of upstream queuing; i.e. a queue's formation was always accompanied by a relatively low discharge rate followed later by a …

Long-Term Memory Motion-Compensated Prediction, Thomas Wiegand, Xiaozheng Zhang, Bernd Girod

Electrical Engineering

Long-term memory motion-compensated prediction extends the spatial displacement vector utilized in block-based hybrid video coding by a variable time delay permitting the use of more frames than the previously decoded one for motion compensated prediction. The long-term memory covers several seconds of decoded frames at the encoder and decoder. The use of multiple frames for motion compensation in most cases provides significantly improved prediction gain. The variable time delay has to be transmitted as side information requiring an additional bit rate which may be prohibitive when the size of the long-term memory becomes too large. Therefore, we control the bit …

Flight Physician - February, 1999, Civil Aviation Medical Association

Browse all Civil Aviation Medical Association Newsletters

An eightteen page newsletter of the Civil Aviation Medical Association. The newsletter provided news about civil aviation medicine and information related to the organization.

Acuta Enews February 1999, Vol.28, No. 2

ACUTA Newsletters

In This Issue

Call for Nominations: ACUTA Board of Directors 1999-2000

Levine, McDonalds to Speak at Seminars

Network Challenges for the 21st Century

Overheard on the Listserve

Board Report

Distance Ed Institutes

DC at a Glance

Welcome New Members

Positions Available

A Leader Is a Big Thinker- The Magnet That Attracts Others

Ventilation System Design Parameters For Greenhouses For Tobacco Production, R. S. Gates, George A. Duncan

Agricultural Engineering Extension Updates

Methods for germination and initial growth of tobacco have changed rapidly in recent years, moving from outside float beds into double-layer plastic greenhouses. Typically, these "tobacco greenhouses" consist of sidewall curtains, which run the entire length of both sides of the house. They may also have modest mechanical ventilation.

Ventilation of greenhouse structures is a mature field, with engineering practices for proper design given by numerous organizations including ASAE. In this article we briefly outline the important features of ventilation of concern to tobacco greenhouse operators.

Truck Route Access Evaluation: Centennial Resources, Inc./B. Four, Inc., On Us 62 In Hopkins County, Site #2685, Kenneth R. Agent, Brian Aldridge, Lisa Aultman-Hall, David Cain, Nikiforos Stamatiadis, Joel M. Weber

Kentucky Transportation Center Research Report

The Freight Movement and Intermodal Access in Kentucky Study (SPR 98- 189) is being conducted by the Kentucky Transportation Center on behalf of the Kentucky Transportation Cabinet (KYTC). There are two major objectives of the study: evaluation of the access for trucks between intermodal or other truck generating sites and the National Highway System (NHS); and furthering the understanding of freight commodity flows throughout the state. This report summarizes the access evaluation for a facility located in Hopkins County in the Pennyrile Area Development District (ADD) and KYTC Highway District #2. The location of the site is shown in Figure …

Analysis Of A Non-Trivial Queueing Network, Kelly Scott Bellamy

Theses and Dissertations

In studying complex queueing networks, one generally seeks to employ exact analytic solutions to reduce burden on computational resources. Barring the existence of an exact solution, the alternatives include approximation techniques and simulation. Approximation is the more attractive alternative from a time and effort perspective; however, cases exist that are not amiable to this technique. This work increases the flexibility of approximation techniques in obtaining estimates of congestion measures for complex, open queueing networks having several customer classes and class-dependent structures. We accomplish this by providing the procedure to aggregate multiple classes into a single class in order to apply …

Indiana Model Zoning Ordinance, Indiana Ltap

Indiana Local Technical Assistance Program (LTAP) Publications

This publication is targeted to community leadership and concerned citizens in the smaller counties, cities, and towns in Indiana about to begin the process of planning and zoning.

The objectives of this revision are (1) to present the planning and zoning process in layman's terms; (2) to render the following model zoning ordinance more understandable to those who may not possess a professional planning background; (3) to briefly present and discuss significant zoning issues facing Indiana communities; (4) to provide a brief summary of the changes in the Indiana statutes concerning planning and zoning since 1990; and (5) to provide …

Bs News

Building Services Engineering

No abstract provided.

Finite Element Study Of Wellbore Stability, Karim Ibrahim Badawi

Archived Theses and Dissertations

No abstract provided.

Truck Route Access Evaluation: Safety Kleen, Henry County, Site #2145, Brian Aldridge, Kenneth R. Agent, Lisa Aultman-Hall, David Cain, Nikiforos Stamatiadis, Joel M. Weber

Kentucky Transportation Center Research Report

The Freight Movement and Intermodal Access in Kentucky Study (SPR 98-189), undertaken by the Kentucky Transportation Center (KTC) on behalf of the Kentucky Transportation Cabinet (KYTC), has two main objectives. These objectives include 1) the evaluation of access for trucks between intermodal or other truck generating sites and the National Highway System (NHS) and 2) furthering the understanding of freight commodity flows throughout the state. This report summarizes the access evaluation for one facility located in Henry County in the KIPDA Area Development District (ADD) and KYTC Highway District #5. The location of the site is shown in Figure 1. …

Truck Route Access Evaluation: Tyson Foods, Henderson County, Site #2684, Kenneth R. Agent, Brian Aldridge, Lisa Aultman-Hall, David Cain, Nikiforos Stamatiadis, Joel M. Weber

Kentucky Transportation Center Research Report

The Freight Movement and Intermodal Access in Kentucky Study (SPR 98-189) is being conducted by the Kentucky Transportation Center on behalf of the Kentucky Transportation Cabinet (KYTC). There are two major objectives of the study: evaluation of the access for trucks between intermodal or other truck generating sites and the National Highway System (NHS); and furthering the understanding of freight commodity flows throughout the state. This report summarizes the access evaluation for several facilities located in Henderson County in the Green River Area Development District (ADD) and KYTC Highway District #2. The location of the site is shown in Figure …

Truck Route Access Evaluation: Millard Processing, Nelse, Site #1677, Joel M. Weber, Kenneth R. Agent, Brian Aldridge, Lisa Aultman-Hall, David Cain, Nikiforos Stamatiadis

Kentucky Transportation Center Research Report

This is a study undertaken by the Kentucky Transportation Center on behalf of the Kentucky Transportation Cabinet (KYTC). There are two main objectives of the Freight Movement and Intermodal Access in Kentucky Study (SPR 98-189): evaluation of the access for trucks between intermodal or other truck generating sites and the National Highway System (NHS); and furthering the understanding of freight commodity flows throughout the state. This report summarizes the access evaluation for Millard Processing located in Pike County in the Big Sandy Area Development District (ADD) and KYTC Highway District #12. The location of the site is shown in Figure …

Truck Route Access Evaluation: Industrial Park, Henderson County, Site #2, Kenneth R. Agent, Brian Aldridge, Lisa Aultman-Hall, David Cain, Nikiforos Stamatiadis, Joel M. Weber

Kentucky Transportation Center Research Report

The Freight Movement and Intermodal Access in Kentucky Study (SPR 98-189) is being conducted on behalf of the Kentucky Transportation Cabinet (KYTC). There are two major objectives of the study: evaluation of the access for trucks between intermodal or other truck generating sites and the National Highway System (NHS); and furthering the understanding of freight commodity flows throughout the state. This report summarizes the access evaluation for several facilities located in Henderson County in the Green River Area Development District (ADD) and KYTC Highway District# 2. The locations of the sites are shown in Figure 1. Work on other specific …

Truck Route Access Evaluation: Seaboard Farms, Graves County, Site #2623, Brian Aldridge, Kenneth R. Agent, Lisa Aultman-Hall, David Cain, Nikiforos Stamatiadis, Joel M. Weber

Kentucky Transportation Center Research Report

The Freight Movement and Intermodal Access in Kentucky Study (SPR 98- 189), undertaken by the Kentucky Transportation Center (KTC) on behalf of the Kentucky Transportation Cabinet (KYTC), has two main objectives: 1) the evaluation of access for trucks between intermodal or other truck generating sites and the National Highway System (NHS) and 2) furthering the understanding of freight commodity flows throughout the state. This report summarizes the access evaluation for one facility located in Graves County in the Purchase Area Development District (ADD) and KYTC Highway District #1. The location of the site is shown in Figure 1. Work on …

Truck Route Access Evaluation: Owensboro Riverport Authority/Miles Farm Supply Dock, Daviess County, Site #24, Brian Aldridge, Kenneth R. Agent, Lisa Aultman-Hall, David Cain, Nikiforos Stamatiadis, Joel M. Weber

Kentucky Transportation Center Research Report

The Freight Movement and lntermodal Access in Kentucky Study (SPR 98-189), undertaken by the Kentucky Transportation Center (KTC) on behalf of the Kentucky Transportation Cabinet (KYTC), has two main objectives. These objectives include 1) the evaluation of access for trucks between intermodal or other truck generating sites and the National Highway System (NHS) and 2) furthering the understanding of freight commodity flows throughout the state. This report summarizes the access evaluation for one cluster of sites located northwest of Owensboro in the Green River Area Development District (ADD) and Kentucky Transportation Cabinet (KYTC) Highway District #2. The location of the …

Truck Route Access Evaluation: Dow Corning, Varity Dayton Walther And Ghent Generating Station, Carroll County, Site #33 & 51, Joel M. Weber, Kenneth R. Agent, Brian Aldridge, Lisa Aultman-Hall, David Cain, Nikiforos Stamatiadis

Kentucky Transportation Center Research Report

This is a study undertaken on behalf of the Kentucky Transportation Cabinet (KYTC). There are two main objectives of the Freight Movement and Intermodal Access in Kentucky Study (SPR 98-189): evaluation of the access for trucks between intermodal or other truck generating sites and the National Highway System (NHS); and furthering the understanding of freight commodity flows throughout the state. This report summarizes the access evaluation for Dow Corning and Varity Dayton Walther Corporation (site #33) as well as the Ghent Generating Station (site #51). These facilities share a route and are therefore discussed in this single report. The facilities …

Truck Route Access Evaluation: Bullitt County Stone, Shepherdsville, Site #2031, Joel M. Weber, Kenneth R. Agent, Brian Aldridge, Lisa Aultman-Hall, David Cain, Nikiforos Stamatiadis

Kentucky Transportation Center Research Report

This is a study undertaken by the Kentucky Transportation Center on behalf of the Kentucky Transportation Cabinet (KYTC). There are two main objectives of the Freight Movement and Intermodal Access in Kentucky Study (SPR 98-189): evaluation of the access for trucks between intermodal or other truck generating sites and the National Highway System (NHS); and furthering the understanding of freight commodity flows throughout the state. This report summarizes the access evaluation for the Bullitt County Stone facility located in Bullitt County in the KIPDA Area Development District (ADD) and KYTC Highway District #5. The location of the site is shown …

Ccfss News February 1999, Wei-Wen Yu Center For Cold-Formed Steel Structures

CCFSS Newsletters (1999 - 2008)

No abstract provided.

Conditions For Stripping Using Accelerated Testing, Changlin Pan, Thomas D. White

JTRP Technical Reports

A laboratory study was conducted to determine water sensitivity and rutting potential of asphalt mixtures. Two major tests were included in the study: AASHTO T-283 and a laboratory wheel tracking device (PURWheel). AASHTO T-283 has been adopted in the Superpave system for evaluating mixture stripping potential. The PURWheel device and test method was developed with the concept creating conditions associated with stripping, i.e. moisture, high temperature, and a moving wheel load. The laboratory wheel track tests can be conducted with hot/wet or hot/dry environments. The objective of the study is to determine the factors that most influence bituminous mixture stripping …

A Novel Readout Method For Focal Plane Array Imaging In The Presence Of Large Dark Current, Changqing Qiu

Dissertations

This research was an investigation of a novel readout method for focal plane array (FPA) optical imaging, especially for very sensitive detectors with large dark current. The readout method is based on periodically blocking the optical input enabling the removal of the dark current integration from the output. The research demonstrated that it is feasible to modulate the optical input with the designed readout circuit and thus achieve longer signal integration time to enhance the signal-to-noise ratio.

Study of a proposed circuit model showed that in theory the correlated readout method could increase the output voltage swing and reduce the …

Investigation Of Thermal Contact Resistance At A Plastic-Metal Interface In Injection Molding, Lakshminarayanan Sridhar

Dissertations

Thermal contact resistance (TCR) at the plastic-metal interface is one of the parameters required for the simulation of plastic processing techniques such as injection molding. However, the available data is both unreliable and insufficient due to the difficulties involved in measuring this parameter. The effects of thermal contact resistance on the heat transfer in plastics processing with particular reference to injection molding of thermoplastics is investigated using combined experimental measurement techniques, parametric studies and numerical analysis.

TCR under steady state conditions has been determined experimentally at typical thermoplastic-mold metal interfaces for an amorphous and a semi-crystalline polymer using a one-dimensional …