Engineering Commons^™

Low Cost Housing: The Necessity Of Interdisciplinary Skills, Margaret K. Thorpe, Dwight D. Zeck

International Symposia on Low Cost Housing Problems

No abstract provided.

Preliminary Indicators Of Income/Wealth Redistribution Associated With Bureau Of Reclamation Projects, Reed Willis, Allen Lebaron, Herbert Fullerton

Reports

Social well-being is an accepted subset of water investment feasibility criteria. Our attempt is to isolate income redistribution impacts conferred by the U.S. Bureau of Reclamation projects. Four project sites have been utilized to yield both pre and post project estimates of farm income and wealth. Production functions of the Cobb-Douglas type were estimated to yield information about factor shares, and thus enable inferences to be made about distribution of total product. Lorenz curves were developed to show changes in distribution of wealth and net income in terms of family enterprise, per acre, and per irrigated acre. Listing of individual …

Development Of Specifications For Reflex-Reflective Materials, Ronalds L. Rizenbergs

Kentucky Transportation Center Research Report

Evolutionary changes in highway design, automobiles and retro-reflective products prompted Kentucky to undertake a study to update specification requirements for signing materials, delineators and coating compounds. The study was primarily concerned with geometric relationships between the driver, headlamps and traffic signs; investigation of reflectivity, color, durability and other properties of available reflective materials; adoption of testing apparatus to measure material properties; and development of test procedures.

A review of specific sign viewing conditions on the road indicated the appropriateness of reflectivity testing at 0.5-degrees and 0.2-degrees angles of divergence. These angles, however, limit examination of materials at viewing distances in …

Experimental Sand-Asphalt Surface, Robert L. Florence, Herbert F. Southgate

Kentucky Transportation Center Research Report

Wearing surfaces of Kentucky rock asphalt applied in thin layers were used extensively in Kentucky for many years. Sand asphalts, which generically include rock asphalt, are now a reemergent generation of surfacings to be investigated (1,2,3). An interim report (4) related the construction and interim performance of trial surfacings in Logan County. Two bridge deck sand-asphalt surfacings have been reported (5). This report covers sand-asphalt construction and performance since 1966. Pertinent project data and comments are contained in Appendix A. The several Special Provisions are included in Appendix B.

Interest in sand-asphalt wearing surfaces issues from the skid-resistant qualities which …

State New Construction Technologies 1963, Orani Dixon, John V. Wells

Accounts and Data

This is a study that considers both interregional technological variations and interregional product mix variations. Product mix variations are estimated more accurately by using more disaggregated construction subindustries and by improving the accuracy of the state output totals used as weights in estimating product mix variations.

The Fe-Ho Binary System, G. J. Roe, Thomas J. O'Keefe

Materials Science and Engineering Faculty Research & Creative Works

The Fe-Ho phase diagram was determined on the basis of data obtained by X-ray diffraction, metallographic and differential thermal analysis techniques. Since emphasis was centered in the region where intermetallic compounds predominate, neither the iron nor holmium terminal regions were included in this study. Eutectic reactions were found to occur at 16.5 wt pct Fe and 875° C, 61 wt pct Fe and 1284° C, and 79 wt pct Fe and 1338° C. The congruent melting points of the compounds Ho6Fe23 and Ho2Fe17 were found to be 1332° and 1343° C, respectively. Two other intermetallic compounds were found, HoFe2 and …

Longitudinal Modes In A High-Gain Laser, Lee W. Casperson, Amon Yariv

Electrical and Computer Engineering Faculty Publications and Presentations

In lasers employing high‐gain narrow‐linewidth transitions the theory predicts major departures of the mode‐splitting frequencies from their low‐gain values as well as a new type of mode splitting. The first of these effects consisting of a reduction by a factor of 2.5 of the mode splitting in a xenon 3.51‐μ laser is observed experimentally.

Strength Of Bolted And Welded Connections In Stainless Steel, George Winter, S. J. Errera, B. M. Tang, D. W. Popowich

CCFSS Library (1939 - present)

INTRODUCTION In 1968 the American Iron and Steel Institute published the first edition of the "Specification for the Design of Light Gage Cold-Formed Stainless Steel Structural Members"(1)8, , based largely on research sponsored by AISI at Cornell University. (2) That Specification covers the design of members cold-formed from six common types of austenitic stainless steel in the annealed and strain flattened condition. Additional research has been underway at Cornell on austenitic Type 301 stainless steel in the 1/4 and 1/2 hard tempers, to determine the structural behavior of these higher strength materials(3), including the behavior of structural connections. The properties …

Missile Intelligence Agency, Us Army Missile Command, Robert Bolin , Depositor

United States Department of Defense Military Intelligence

Historical Data Cards were used to record the organizational history of units within the Army. This card was provided to Robert Bolin by the US Army Institute of Heraldry in 1985.

The Missile Intelligence Agency (MIA) was organized on 1 December 1967 as the Missile Intelligence Directorate of the US Army Missile Command in Huntsville, AL. On 14 August 1970, the Missile Intelligence Directory was redesignated the Missile Intelligence Agency, a special purpose-military organization assigned to the US Army Materiel Command.

Many of the entries on the card were made when a new Table of Distribution and Allowances (TDA) were …

Rotating Cylinder Apparatus For Rarefied Gas Flow Studies, Darryl J. Alofs, George S. Springer

Mechanical and Aerospace Engineering Faculty Research & Creative Works

A rotating cylinder type apparatus is described, suitable for determining drag in cylindrical Couette flow of rarefied gases, and for evaluating tangential momentum accommodation coefficients at gas-solid boundaries. The apparatus is equipped with a damping device using diffusion pump oil for eliminating undesirable oscillations in the system. Tangential momentum accommodation coefficients of argon on aluminum were determined with an accuracy of ± 2.5%. The results obtained indicate that the apparatus may be used over a wide pressure range, corresponding to free molecule and continuum flow conditions.

Hydrologic Inventory Of The Weber River Study Unit, Frank W. Haws, Roland W. Jeppson, A. Leon Huber

Reports

The 1963 Utah State Legislature authorized the Utah Water and Power Board (now the Utah Division of Water Resources) to develop a state water plan in order to give coordination and direction to the activities of all state and federal agencies concerned with Utah's water resources. To facilitate the development of this plan, a proposal was submitted through the State Planning Coordinator in the Governor's Office to the Urban Renewal Administration of the Housing and Home Finance Agency. Funding was approved effective May 19, 1966, under the Urban Planning Assistance Program authorized by Section 701 of the Housing Act of …

The 1963-64 Lake Mead Survey, J. M. Lara, J. I. Sanders, Bureau Of Reclamation

Publications (WR)

The 1963-64 Lake Mead survey was run to compute the reservoir capacity. Results of the geodetic and hydrographic surveys and sediment sampling equipment are described. The geodetic survey showed Hoover Dam subsided an average of 118 mm since 1935. Sonic sounding, photogrammetry, and crosssectional profiling methods were used to run the hydrographic survey. Reservoir area and capacity tables were generated using an electronic computer. The present lake capacity is 29,755,000 acre-ft and the reservoir surface area is 162,700 acres at elevation 1229 ft. 2,720,000 acre-ft of sediments accumulated in the lake since 1935. A unit weight of 60 Ib/cu ft …

Replication Of Eye-Bars And Measurement Of Losses In Cross Section Due To Corrosion, Assaf S. Rahal, J. R. Philpot

Kentucky Transportation Center Research Report

Recent availability of high pressure water blasters made it possible to remove rust accumulated between the eye-bars near pin connections on the Central Bridge (Figure 1) over the Ohio River at Newport. Previously, they had never been thoroughly cleaned. Cleaning of two connections on a trial basis enabled an inspection between the bars. It was apparent then that the deterioration was critical enough to necessitate examination of the several bar groups and to accurately measure their least cross sections.

The Research Division undertook the task of replicating and measuring the bars. Figures 2 and 3 show one set of bars …

A Simplification Heuristic For Large Flow Tables, R. J. Smith, James H. Tracey

Electrical and Computer Engineering Faculty Research & Creative Works

Flow tables specifying large asynchronous sequential circuits often contain more internal states than are required to specify desired circuit behavior. Known minimization techniques appear unsuited for reduction of such large (rows X columns > 250) flow tables, because of excessive computation and intermediate data requirements for problems of this size. The algorithm described here is intended to rapidly produce a simplified-but in general non-minimal-flow table. It is most economical when applied to extremely large tables and was devised primarily for automated design applications. The procedure has been programmed in PL/1 and has been incorporated into an asynchronous sequential circuit design automation …

Production Attachment For Wood Turning, Julian A. Olson

Graduate Research Papers

As an industrial arts instructor for the short period of three years the writer has recognized a definite shortcoming in his instruction of the woodworking lathe. Instruction related to the woodworking lathe by the conventional "hand tool" methods is most important in leading to the students' understanding of basic turning ideas. This instruction, however, falls short of providing an up-to-date picture of the woodworking lathes used by industry.

As a means of overcoming this problem, the writer undertook the study of lathes as a project for the course, "Projects in Industrial Arts". This research provided information necessary in the construction …

Plastics: Mold Design And Fabrication, Duane H. Rippe

Graduate Research Papers

Students have often asked if additional molds were available which would make different objects other than golf tees. Literature provided with the injection molder described several methods of mold construction which could be fabricated in the school shop. The writer considered the possibility of making another mold, however, a time factor and limited experience prohibited construction.

The problem seemed to be appropriate for the Projects Course 33:270 at the University of Northern Iowa. The course and research involved would assimilate the needed information to construct a mold and to teach plastic injection mold construction more effectively.

Wood Flour Molding, Charles Reed Snyder

Graduate Research Papers

The purposes of this research are briefly stated in the following:

1. Develop an understanding of the values of an industrial process through the use of raw materials and laboratory equipment.

2. Investigate wood flour molding and its relation to industry.

3. Experiment with materials, laboratory equipment, and wood flour mixtures to produce a molded article.

4. Develop an instructional unit for use in an industrial arts curriculum.

Test 1044: Allis-Chalmers Crop Hustler 185 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …

Test 1043: Allis-Chalmers Crop Hustler 175 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …

Test 1042: Oliver 1655, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Test 1040: Oliver 1855 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Test 1041: Oliver 1655 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Test 1038: Case 970 Power Shift Gasoline, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …

Test 1039: Case 970 Manual Gasoline, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …

Test 1037: Case 970 Power Shift Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …

Test 1034: Case 970 Manual Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …

Test 1035: Case 1070 Manual Diesel (Also Case 1090 Manual), Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …

Test 1036: Case 1070 Power Shift Diesel (Also Case 1090 Power Shift), Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …

Median Design And Accident Histories, Gordon R. Garner

Kentucky Transportation Center Research Report

The purpose of this study was to provide information concerning the accident histories of various median types to verify minimum requirements for width and cross section. Previous accident studies failed to disclose significant relationships between median width and accident rates. Those studies did not recognize or control several important variables that were controlled in the present study. The efforts here are to compare median types on rural, four-lane, fully controlled access facilities with similar geometries other than median types. An attempt was made to account for some of the Variability in the accident data. Thus, this study gives information on …

Jigs And Fixtures In Wood Industries, Arno K. Grabe

Graduate Research Papers

As an integral part of most woodworking industries, jigs and fixtures are worthy of some study. There is very little evidence of written material covering the topic even though the use of many of these devices is widespread throughout industry. The fact that these devices normally result in a substantial saving in production costs can often make them an important facet of a firm's business.

This saving can be accomplished in a number of different ways: use of unskilled workers, standardization of parts, interchangeability of pieces, reduction of safety hazards, and lowering of production time. Not all points will apply …