Engineering Commons^™

Relationship Between The P And S Fresnel Reflection Coefficients Of An Interface Independent Of Angle Of Incidence, R. M.A. Azzam

Electrical Engineering Faculty Publications

The Fresnel reflection coefficients r_p and r_s of p- and s-polarized light at the planar interface between two linear isotropic media are found to be interrelated by (r_s - r_p)/(1 - r_sr_p) = cos 2β, independent of the angle of incidence ø, where tan²β = ∊ and ∊ is the (generally complex) ratio of dielectric constants of the media of refraction and incidence. This complements another relation (found earlier), (r²_s - r_p)/(r_s - r_sr_p) = …

Irish H & V News

Building Services Engineering

No abstract provided.

Optimal Cure Cycle Design Of A Resin-Fiber Composite Laminate, Jeenson Sheen

Mechanical & Aerospace Engineering Theses & Dissertations

High performance polymeric composites have been experiencing increasing usage in the aerospace and automobile industries. Such materials are commonly composed of long or chopped fibers embedded in the thermosetting resin matrix. Changes in physical and chemical properties of such composite materials during the cure process are rather complex. Thus, it is not a trivial task to properly design a cure cycle (temperature and pressure profiles) for a cure process. The material should be cured uniformly and completely with the lowest void content; the temperature inside the laminate must not exceed some maximum value; and the cure process should be completed …

An Experimental And Analytical Investigation Of Incompressible Fluid Flow Through A Distensible Tube System, Steven C. Wells

Mechanical & Aerospace Engineering Theses & Dissertations

An analysis was made of pressure and flow in a novel elastic tube system which has been used to theorize certain aspects of renal hemodynamic cs. Validation of the theory could alter the treatment of certain heart and kidney disorders. In an attempt to better understand a system flow anomaly under steady driving head conditions, experiments were performed, and a mathematical model was developed. The development of the model incorporated a set of nonlinear differential and algebraic equations. Using a finite-difference analysis as the method for obtaining a numerical solution, various pressures and flows were obtained. Results for the steady-state …

A Quantitative Approach To Simulation And Analysis Of Storm Water Systems, John Nathan Paine

Civil & Environmental Engineering Theses & Dissertations

A generalized package of hydrologic and hydraulic models and programs is developed for the quantitative analysis of watersheds and drainage networks. The package is microcomputer based and is available to interested parties. Full documentation is included in the Appendix. The approach applies a lengthy historical rainfall record to the system in continuous simulation. One of the most powerful operational hydraulic routing models available is adopted into the package. Output takes the form of statistical predictions of flood stages, discharges, storage requirements, and rainfall analyses for various return-periods. Computer runs are completely summarized. The package was applied to a 969-acre watershed …

A Theoretical Study Of Pure And Simple Competition Between Two Microbial Species In Configurations Of Two Interconnected Chemostat, Cheng-Ming Kung

Theses

It is known that two microbial populations competing purely and simply for a common substrate cannot coexist in a steady state in an environment which is spatially homogeneous. Hence they cannot coexist in a chemostat something which implies that a mixed culture of two pure and simple competitors cannot be maintained in a single ideal reactor in a steady state. The present study investigates theoretically pure and simple competition between two populations in two interconnected chemostats. Three reactor configurations are considered and analyzed. It is proved that two pure and simple competitors can coexist in a steady state in both …

Analysis And Prediction Of The Water Temperature Of The Mckenzie River, Oregon Using The Equilibrium Temperature Approach, R. Peder Hansen

Dissertations and Theses

A one dimensional, steady flow, unsteady temperature model is used to evaluate the effects of two U.S. Army Corps of Engineers (COE) dams and resulting reservoirs on hourly water temperatures of the mainstem McKenzie River from Delta Park (RM 62.1) to Leaburg Dam (RM 38.8). Both COE projects are on tributaries to the McKenzie River and at present have only bottom withdrawl capabilities.

Water temperatures were simulated using the equilibrium temperature approach with air temperature used to estimate equilibrium temperature and also using computed hourly equilibrium temperature. Results obtained using computed equilibrium temperatures were less satisfactory than results using air …

Hydrocarbon Fuel Additives And Method For Preparing Same, G. David Mendenhall, Hsiang T. Chen

Michigan Tech Patents

A compound having the general formula R*COH[- CORJj,, wherein R is a lower alkyl hydrocarbon radical, y is 0 or 1, and x is 2 when y is 1 and 3 when y is 0, is prepared by admixing carbon monoxide, a transition metal halide, and an organomonolithium compound or an anionic equivalent thereof.

Test 1600: Valmet 148 4wd Turbo Diesel 12-Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …

Epa Regulation Of Mining Wastes Under Rcra And Cercla, Robert E. Walline

Getting a Handle on Hazardous Waste Control (Summer Conference, June 9-10)

9 pages.

The New Cercla Amendments—What Are They? What Do They Mean?, David R. Andrews

Getting a Handle on Hazardous Waste Control (Summer Conference, June 9-10)

35 pages.

Natural Resources Damage Litigation [Appendix], Michael Donovan

Getting a Handle on Hazardous Waste Control (Summer Conference, June 9-10)

80 pages (includes illustrations).

Contains references and historical notes.

Appendix contains 3 attachments:

1) Comprehensive Environmental Response, Compensation and Liability Act, ("CERCLA"), 42 U.S.C. 9601 et seq. (1980)

2) National Contingency Plan, 40 C.F.R. Part 440, 50 Fed. Reg. No. 224, Part III (November 20, 1985)

3) Natural Resource Damage Assessments - Proposed Rule, Department of Interior, 43 C.F.R. Part 11, 50 Fed. Reg. No. 245, Part IV (December 20, 1985)

Review On The Administrative Record In Cercla Actions And Settlement Policy Summary, Stephen D. Ramsey

Getting a Handle on Hazardous Waste Control (Summer Conference, June 9-10)

50 pages.

Contains references.

Revised Definition Of Solid Waste, John D. Fognani

Getting a Handle on Hazardous Waste Control (Summer Conference, June 9-10)

15 pages.

The 1985/1986 Amendments To The Comprehensive Environmental Response, Compensation, And Liability Act: A Background Paper, Alan J. Gilbert

Getting a Handle on Hazardous Waste Control (Summer Conference, June 9-10)

20 pages.

Contains 2 attachments.

Test 1599: Valmet 980 4wd Turbo Diesel 8-Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …

Agenda: Getting A Handle On Hazardous Waste Control, University Of Colorado Boulder. Natural Resources Law Center

Getting a Handle on Hazardous Waste Control (Summer Conference, June 9-10)

The conference chairman was University of Colorado School of Law professor Lawrence J. MacDonnell.

During the past ten years Congress has made the regulation of hazardous waste a priority. This conference focuses on the Resource Conservation and Recovery Act, as amended in 1984, and the Comprehensive Environmental Response, Compensation and Liability Act.

This conference attracted about 100 registrants from 16 states plus the District of Columbia. John G. Welles, Regional Director for EPA Region 8, presented a luncheon address.

The New Small Quantity Generator Rules: Rcra Reaches Small Business, Hal Winslow

Getting a Handle on Hazardous Waste Control (Summer Conference, June 9-10)

16 pages.

Contains 1 footnote.

The 1984 Hswa Amendments: The Land Disposal Restrictions, James R. Spaanstra

Getting a Handle on Hazardous Waste Control (Summer Conference, June 9-10)

28 pages.

Contains references.

Reduction Of Hazardous Waste—Pay Me Now Or Pay Me Later, Frank B. Friedman

Getting a Handle on Hazardous Waste Control (Summer Conference, June 9-10)

8 pages.

Contains 1 attachment.

Colorado’S Hazardous Waste Program: Current Activities And Issues, Richard L. Griffith

Getting a Handle on Hazardous Waste Control (Summer Conference, June 9-10)

17 pages.

An Evaluation Of Rcra, David J. Lennett

Getting a Handle on Hazardous Waste Control (Summer Conference, June 9-10)

68 pages (includes 1 illustration).

Contains 1 page of references.

Contains 5 attachments.

Regulation Of Wastes From The Metals Mining Industry: The Shape Of Things To Come, Lawrence J. Macdonnell

Getting a Handle on Hazardous Waste Control (Summer Conference, June 9-10)

37 pages.

Contains 5 pages of endnotes.

Underground Storage Tank Regulations, J. Kemper Will

Getting a Handle on Hazardous Waste Control (Summer Conference, June 9-10)

17 pages (includes 1 illustration and 1 form).

Contains 3 pages of references.

Contains 4 attachments.

Test 1598: Kubota M8030dt And M8030 Diesel 16-Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …

Column Froth Flotation, David C. Yang

Michigan Tech Patents

The froth flotation device includes a flotation column partially filled with a packing which defines a large number of small flow passages extending in a circuitous pattern between the upper and lower portions of the column. A conditioned aqueous pulp of a mineral ore, such as iron ore, is introduced into the midzone of the column. A pressurized inert gas, such as air, is introduced into the bottom of the column and is forced upwardly through the flow passages in the packing. As the air flows upwardly through these flow passages, it is broken into fine bubbles which intimately contact …

Test 1597: Kubota M7030dt And M7030 Diesel 16-Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …

Microcomputer Solid Waste Financial Model, Samuel A. Vigil, Jane A. Zevely

Civil and Environmental Engineering

Applications of a microcomputer based solid waste financial model will be described. The model is written as an overlay to the Lotus 1-2-3 spreadsheet program. It makes use of the Lotus 1-2-3 macro programming capabilities and is menu driven, requiring minimal computer skills for use. The model allows engineers to estimate costs for recycling centers, waste-to-energy plants, and landfills. Outputs include summary tables of operational and capital costs, as well as a 20 year proforma income statement. The model was developed for the California Waste Management Board, an agency of the State of California, and will be distributed by them.

Evaluation Of Snowplowable Marker Installations, Kenneth R. Agent, Jerry G. Pigman

Kentucky Transportation Center Research Report

The first large-scale contracts for the installation of snowplowable markers were awarded in 1984 and 1985. Stimsonite 96 and recessed markers were installed. The objective of this study was to evaluate the performance of the installations. Durability and reflectivity results show that both the recessed markers and Stimsonite 96 markers have performed effectively as snowplowable markers. The recessed markers should continue to be used only on four-lane highways constructed to high geometric standards with the Stimsonite 96 markers installed on the majority of highways.

Progressive Coding And Transmission Of Digital Diagnostic Pictures, Sharaf E. Elnahas, Kou-Hu Tsou, Jerome R. Cox, Rexford L. Hill, R. Gilbert Jost

All Computer Science and Engineering Research

In radiology, as a result if the increased utilization of digital imaging modalities, such as computed tomography (CT) and magnetic resonance imaging (MRI), over a third of the images produced in a typical radiology department are currently in digital form, and this percentage is steadily increasing, Image compression provides a means for the economical storage and efficient transmission of these diagnostic pictures. The level of coding distortion than can be accepted for clinical diagnosis purposes is not yet well-defined. In this paper we introduce some constraints on the design of existing transform codes in order to achieve progressive image transmission …