Digital Commons Network^™

Data Compression Design Considerations For Airborne Test Vehicles, Kenneth Carlyle Pittman

Masters Theses

"The design goals for a data compression system are developed using previous studies as a cornerstone. Sampling theory is touched on with qualitative coverage of its effects. Consideration is given to various methods of data compression with the advantages and disadvantages of each noted. The requirement for buffering is discussed along with various methods that may be employed to achieve specific buffering goals. The impact of data reconstruction and how it may affect the choice of compression techniques is briefly covered. Selected compression algorithms and ways of increasing system effectiveness through alterations to their basic structures are described in detail. …

Thermal Stresses And Movements In Bridges, Joseph Charles Reynolds

Masters Theses

"A state of the art regarding the thermal behavior of bridges and considerations to be given to the resultant thermal effects is presented. The results of studies related to the thermal effects on bridges are reviewed. Studies attempting to relate environmental factors to bridge temperatures, and subsequently to bridge movements and stresses, indicate that the task is extremely complex. Some correlation has been made between equations predicting bridge temperatures and movements based on weather bureau records. However, further research is needed to evaluate the effects of factors other than temperature, such as creep, shrinkage, and humidity on bridge movements and …

Computer Solution To Inverse Problems Of Elliptic Form: V²U(X,Y) = G(A,U,X,Y), Frederick Alvin Jeter

Dissertations and Theses

One important aspect of our present age of monolithic high speed computers is the computer's capability to solve complex problems hitherto impossible to tackle due to their complexity. This paper explains how to use a. digital computer to solve a specific type of problem; specifically, to find the inverse solution of a in the elliptical equation V²U(x,y) = g(a,U,x,y), with appropriate boundary conditions. This equation is very useful in the electronics field. The knowns are the complete set of boundary values of U(x,y) and a set of observations taken on internal points of U(x,y). Given this information, plus …

Kentucky Pavement (Bituminous) Performance Evaluations And Design Studies, James H. Havens

Kentucky Transportation Center Research Report

No abstract provided.

Field Identification Of Soils And Aggregates For County Roads, D. G. Shurig, Jean E. Hittle

Indiana Local Technical Assistance Program (LTAP) Publications

The primary purpose of this bulletin is to provide instruction to Indiana county road personnel on rating the quality of soils and pit-run materials used in the construction and maintenance of county roads. A system of soil classification is presented which provides the county highway engineer, road supervisor and inspector alike, with a common language for identifying soil types, properties and problems.

The Effect Of Variable Properties On The Laminar Flow Of Gases, Norman Shilling

Dissertations

The problem of heat transfer in laminar flow of a gas through a constant diameter cylindrical tube is treated. The gas is cooled by the tube walls held at constant temperature. Two tube inlet conditions are considered: (1) fully developed velocity and uniform temperature profiles (Graetz boundary condition) and (2) uniform velocity and temperature (UTV) profiles. Results of the theoretical and experimental phases of the work are presented.

The theoretical solution is based on the compressible boundary layer equations with varying transport and thermodynamic property terms retained. For the Graetz condition, an existing finite difference solution scheme is modified for …

Interpretation Of Hot-Film Anemometer Response In A Non-Isothermal Field, W. E. Burchill, B. G. Jones

Symposia on Turbulence in Liquids

A new technique for interpretation of hot-film anemometer sensor response is described. This technique has been applied to simultaneous measurement of profiles of mean velocity, the three components of velocity vector fluctuation, and temperature fluctuation in non-isothermal pipe flow of water using multiple sensors. Sensors operated in the constant temperature mode (CTA) respond to both mean and fluctuating velocity and temperature. The influence of mean temperature gradient on CTA sensor response was eliminated by appropriate adjustment of the sensors' operating resistances as the temperature gradient was traversed. The adjustments were derived from analysis of linearized CTA sensor response. A sensor …

Visualization Of Unsteady Flow Over Oscillating Airfoils, G. H. Ruiter, H. M. Nagib, A. A. Fejer

Symposia on Turbulence in Liquids

This study is concerned primarily with the complex nature of leading edge flow separation occurring on airfoils oscillating in a uniform flow field at low Reynolds numbers. The flow field past an oscillating airfoil and a fixed airfoil with an oscillating flap were investigated using various visualization techniques in water. The role of mean flow velocity, instantaneous angle of attack, mean angle of attack and amplitude and frequency of oscillation as well as the location of the support point are examined. The results which were obtained over a range of parameters substantially beyond previous studies include new information regarding the …

Air Pollution Control Training In Colleges And Universities In The United States, Harold M. Cota

Civil and Environmental Engineering

A nationwide survey of air pollution control training efforts in the United States at colleges and universities was carried out for the S-ll Education and Training Committee, Air Pollution Control Association. Information from 91 schools having four year or graduate programs and five community colleges was received. Questions include type of course work, backgrounds of participating faculty and students, and eventual placement. At the present time about 70% of those in training are graduate students. It was found that most students taking initial employment in air pollution control activities had the M.S. degree. Recommendations for updating this information are made.

Analysis Of Water Reuse Alternatives In An Integrated Urban And Agricultural Area, A. Bruce Bishop, David W. Hendricks

Reports

Intoduction

The growing demands on our existing water supplies and the current problems of water shortage emphasize the need for a comprehensive approach to analysis and planning of water reuse. The primary focus, heretofore, has been on the treatment technology for achieving water reuse.

The concept of reuse, however, should be broadened to consider a totally integrated urban and agricultural system. This necessitates a systems analysis where water reuse, together with all other water dispositions, is considered in the context of its contribution to the total water resources pool of a region.

The components of the water resource system are …

Aggregate Shape And Skid Resistance, Jerry G. Rose

Kentucky Transportation Center Research Report

This report concerns further efforts toward the measurement and analysis of the relative influence of aggregate shape on pavement skid resistance. A simple test method for determining aggregate shape in a meaningful way with respect to skid resistance is included. Proposed specifications for skid-resistant, sand-asphalt surface and skid-resistant, Class I, Type A, Modified, bituminous concrete surface containing lightweight aggregate are introduced.

Experimental Guardrail Installation, R. L. Musgraves, Gordon R. Garner

Kentucky Transportation Center Research Report

This is the final report on a limited investigation comparing the performance of painted steel, galvanized steel and aluminum guardrails. A previous report was issued in 1964. The final inspection of the project was made in November 1969.

The project consisted of approximately 2500 lineal feet of each type of guardrail (see Figure 1 and Table 1). The painted steel and galvanized steel were installed in November 1962. The aluminum guardrails were installed in February 1963. All rails are the deep-beam type and were installed in accordance with special provisions which covered material requirements and erection procedures. The special provisions …

A Review Of The Effective Width Formula, N. C. Lind, M. K. Ravindra, J. Power

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

No abstract provided.

Response Of Thin-Walled Beams To Impact Loading, Charles G. Culver, Edward A. Zononi, Arthur H. Osgood

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

No abstract provided.

Impact Loading Of Thin-Walled Columns, Nishikant R. Vaidya, Charles G. Culver

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

No abstract provided.

Behavior Of Channel And Z-Section Beams Braced By Diaphragms, N. Celebi, T. Pekoz, G. Winter

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

No abstract provided.

Comparison Of Aisc Specification For The Design, Fabrication & Erection Of Structural Steel For Buildings And Aisi Specification For The Design Of Cold-Formed Steel Structural Members, Wei-Wen Yu, Chung-Yuan Tung

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

No abstract provided.

Preface, Introduction And Keynote Address, George Winter

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

No abstract provided.

Mechanical Testing Of Small, Clear Timber, Paul V. Mcclannahan

Graduate Research Papers

The purposes of the research project were:

1. To investigate the technological methods employed in mechanical testing of small clear timber.

2. To discover the uses, importance, and need for mechanical testing within the wood industry.

3. To experiment with the construction and development of various types of testing equipment similar to that being used by industry.

4. To explore the possibility of adapting mechanical testing of wood samples to the junior or senior high industrial arts wood laboratory

Mechanical Lettering Devices For Drafting, Wilson G. Forbes

Graduate Research Papers

Having taught mechanical drawing in high school, grades nine through twelve for nearly six years this writer has stressed the importance of lettering to students many times. However, freehand lettering is a very short unit, with limited experience using a Leroy Lettering Guide. The desire to discover other means of lettering drawings prompted the selection of this topic.

Photodrafting, Roger A. Smith

Graduate Research Papers

The purposes of this study are to:

1. define photodrawing and discover the purposes for using photodrawings.

2. determine how photodrawings are made.

3. explore the possibility of the use of photodrawings in the secondary school drafting program.

4. experiment with the possibility of making photodrawings without the use of a darkroom.

Computer-Assisted Layout Design Planning For An Entree Production Center, Saundra H. Pierpoint

Loma Linda University Electronic Theses, Dissertations & Projects

A productive layout design effectively utilizes men, materials, machines, and space. Determination of effective utilization of space and equipment arrangement for a food service system is based on the menu item production sequences. Utilization of computer processing of the data can provide quantitative information in minimal time for major planning decisions.

It was the purpose of this research 1) to determine an optimal equipment arrangement among four types of layouts for an entree-production center and 2) to demonstrate the value of the computer-assisted method in optimizing equipment arrangements.

The production sequences indicating equipment utilization and frequency factor for each of …

A Study Of Dr. Donald Maley's Theory -- "Research And Experimentation In Industrial Arts", John Edward Ferree

Graduate Research Papers

The problem of this study is to make a thorough examination of Dr. Donald Maley's theory -- "Research and Experimentation in Industrial Arts in the Junior or Senior High School."

Perhaps now in 1968, more than ever, concern for what is in store for industrial arts is, or should be, considered more "grave" than expressed in the above quote of Dr. Maley in 1959. Certainly now it could generally be agreed that all theories concerning the future path of industrial arts, of which Dr. Maley's Research and Experimentation theory is one, deserve a full measure of study and evaluation by …

Umr Journal: Alaska -- Its Mineral Potentials And Environmental Challenges, University Of Missouri--Rolla

UMR Journal -- V. H. McNutt Colloquium Series

No abstract provided.

The Environmental Challenges Facing Taps, A. V. Cardin

UMR Journal -- V. H. McNutt Colloquium Series

Before the potential benefits of the recent oil discoveries on the North Slope of Alaska can be realized, the oil must be transported to refining and marketing areas. The Alyeska Pipeline Service Company has the responsibility for the first step in this transportation—to design and construct the Trans Alaska Pipeline System. We will pipe the oil from the discovery areas near Prudhoe Bay to an ice-free, deep-sea tanker loading terminal at Valdez of the South Coast of Alaska. From Valdez the oil will be transported to the West Coast by tankers. This is the most feasible system of a number …

The Environmental Challenges Of Alaskan Mineral Development, Earl T. Hayes

UMR Journal -- V. H. McNutt Colloquium Series

To meet the challenges and to develop Alaska as a source of mineral and fuel resources that are essential to all of us, we must conduct the research and planning necessary to see that the environment is not abused. We cannot allow ourselves the luxury of thinking that we alone know what is best for Alaska. We must strive for cooperation -- cooperation between government and industry; between Federal and State governments; between the doer and the dreamer; and between the engineer and the ecologist. Remember, the quality of what we do today will determine the quality of Alaska in …

Oil And Gas Reserves In The Siberian Shelf, A. J. Eardley

UMR Journal -- V. H. McNutt Colloquium Series

The Arctic region must be the world’s largest storehouse of liquid and gaseous hydrocarbons, and the vast Siberian region, both “on land” and “off shore” must be considered with envy by the free-world’s geologists for its oil and gas potential. It is here estimated that the off shore continental shelf of U.S.S.R. Siberia contains a reserve of 200 billion barrels of oil and 500 trillion cut. ft. of gas. These very approximate figures come from meager data obtained from the literature on oil and gas discoveries in the Siberian Arctic, the basin location of these discoveries, and the projection of …

The Role Of The Independent In Alaska's Mineral Development, D. L. Simasko

UMR Journal -- V. H. McNutt Colloquium Series

In 68 years of oil industry history in Alaska, the independent has already played a substantial role. Eighty-three independent oil companies or operators have participated in drilling 82 exploratory wells or stratigraphic tests. Their activities extended from the discovery of first commercial oil at Katalla in 1902, to the extension of the Prudhoe Bay field in 1970. The success ratio for wildcat wells in Alaska is considerably higher than “outside,” and fields have all been major in statute, thereby reducing the cost per barrel of finding oil.

The most immediate deterrent to the success of the independent in Alaska is …

Maintenance And Operation Of Facilities And Equipment In The Arctic, Charles C. Norris, Charles W. Kelley, Carroll C. Livingston

UMR Journal -- V. H. McNutt Colloquium Series

This has been but a short sketch of a few of the problems attached to living and working in the Arctic. Much has been learned about this remote and hostile area of the world; there is much more knowledge and experience required, as has been demonstrated by the controversy surrounding the routing and construction of the Trans-Alaska Pipeline. Man’s progress depends not only on means for his survival, but also on deep ecological considerations and solid engineering.--Conclusion.

State Regulatory Controls On Oil & Gas, Thomas R. Marshall Jr.

UMR Journal -- V. H. McNutt Colloquium Series

Alaska oil and gas regulatory matters are under the jurisdiction of a three-man Oil and Gas Conservation Committee, all of which are state employees.

In the last 10 years State water bottoms in Cook Inlet have been leased, explored and oil production amounting to about 200,000 barrels a day has been established. Cook Inlet is subject to very high tides and heavy ice flows. Five Salmon runs also occur in the Cook Inlet. The average daily production rate per well in the Cook Inlet area is nearly one hundred times the national average.

The Prudhoe Bay oil field discovered in …