Engineering Commons^™

Happenings 6 (April 1975 Newsletter), College Of Public Affairs And Community Service, University Of Nebraska At Omaha

CPACS Newsletters

The College of Public Affairs and Community Service (CPACS) newsletter that reported on the news, collaborations, events, and general happenings of the UNO College of Public Affairs and Community Service. This newsletter has had many names and variations over the years including SPACS Newsletter (1973); Newsletter of the College of Public Affairs and Community Service (1973-1974): Happenings (1974-1980s); and the current e-newsletter titled the CPACS Collective (2021-)

Study Of Cold-Formed Steel Structural Members Made Of Thick Sheets And Plates, William M. Mckinney, Victor A. S. Liu, Wei-Wen Yu

CCFSS Library (1939 - present)

This final report presents the results of a study of cold-formed steel structural members made of thick sheets and plates. It contains the following two parts:Part I - Local Buckling of Cold-Formed Steel Structural Members Having Compression Elements which Exhibit Initial Out-of-Flatness Part II - Effects of Cold Work on Mechanical Properties of Thick, Cold-Formed Steel Members and Bolted Connections Part I was originally a thesis prepared by William M. McKinney for the degree of Master of Science in Civil Engineering in May, 1974. Part II was originally a thesis prepared by Victor Ai-Shen Liu for the degree of Doctor …

Load Factors For Wind And Snow Loads For Use In Load Resistance Factor Design Criteria, M. K. Ravindra, Theodore V. Galambos

CCFSS Library (1939 - present)

This report presents the background and the derivations for the determination of the mean maximum loads and the corresponding load factors for wind and snow loading for use in Load and Resistance Factor Design Criteria for steel building structures.

Ua64/3 Readout, Wku Industrial Education & Technology

WKU Administration Documents

Newsletter includes articles:

• New Departmental Programs
• Crisp, Jeff. Vocational-Industrial & Technical Teacher Education CBTE Project
• Lyons, Jerry. Not a Dirty Word, re productivity
• Conley, Frank. Comment, re: scholarships
• Dye, Wandel. Airbrush Rendering
• Student Chapter of SME Formed
• New Equipment Inventory
• Nalbach Demonstration Highlights Semester
• Environmental Science & Technology Building
• Industrial Technology Lecture Series

Discussion Of M.W. Witczak's A Comparison Of Layered Theory Design Approaches To Observed Asphalt Airfield Pavement Performance, Herbert F. Southgate, Robert C. Deen, James H. Havens

Kentucky Transportation Center Research Report

No abstract provided.

Evaluation Of Raised Pavement Markers, Jerry G. Pigman, Kenneth R. Agent, Rolands L. Rizenbergs

Kentucky Transportation Center Research Report

The purpose of this study was to evaluate the operational applicability of raised pavement markers and to determine their effectiveness with respect to brightness and durability. Seven different types of markers were evaluated. The primary application of markers in this study was as a supplement to lane lines. They were also used as a traffic control measure at lane drops, as delineation for hazardous curves, and as directional arrows.

Luminosity and durability were monitored for approximately one year. It was found that raised pavement markers can be a very effective method of roadway delineation. Markers evaluated had varying levels of …

Coding Urban Accident Locations, Donald R. Herd

Kentucky Transportation Center Research Report

This study reviews urban traffic accident location reference methods. Consideration is given to techniques used in other states and various cities. The needs for the Commonwealth of Kentucky were examined and a recommended location reference method and coding scheme are presented.

The First 50 Years: Agricultural Engineering, Henry H. Delong

Agricultural and Biosystems Engineering Publications

This is a history of the first 50 years (1925-1975) of the Department of Agricultural and Biosystems Engineering at South Dakota State University, including lists of departmental projects and faculty members.

Chapter I: Introduction
Chapter II: The Beginning of Our Department
Chapter III: Progress in the 40's
Chapter IV: The Growth Picture of the 50's
Chapter V: The Expanding 60's
Chapter VI: The Unique Project of Rammed Earth Construction
Chapter VII: Agricultural Extension Work by the Agricultural Engineers
Chapter VIII: Ag Engineers Take Part in Experiment Station

Application Of Generalized Ellipsometry To Anisotropic Crystals, R. M.A. Azzam, N. M. Bashara

Electrical Engineering Faculty Publications

No abstract provided.

Electromagnetic Modes Of An Inhomogeneous Sphere, Lee W. Casperson

Electrical and Computer Engineering Faculty Publications and Presentations

Vector wave solutions are derived for the electromagnetic modes of a sphere having radial variations of the refractive index and gain. For some inhomogeneity models, confined-mode solutions exist. The results are applicable to the refracting atmospheres of stars and planets.

Computer Aided Structural Analysis: The Finite Element Method, Richard T. Ryner

Graduate Research Papers

The design process is a complex and tedious one. Within it, the task of design verification appears to require the lion's share of time, effort, and money involved.

The design formulation activity requires creative people, placed in an environment where they are able to formulate ideas which eventually become the manufactured products of an organization. This task takes up comparatively little of the time and effort of the design cycle. Therefore, it would appear that the greatest savings could be made in the design analysis task. Further, if these savings can be made earlier in the design cycle, in the …

Integrated Circuits, Julio Garcia

Graduate Research Papers

The technology of integrated circuits is_ almost new in Peru, writer's country-. It is being used mainly in black and white television sets and in some audio amplifier equipment. As any new technology, first, it is necessary to be very familiar with it in order to exploit it adequately and get all the benefits from it. The writer feels this lack of knowledge, and wants to take advantage of being here to learn the technology and techniques for using integrated circuits.

At-Grade Intersections Versus Grade-Separated Interchanges (An Economic Analysis Of Several Bypasses), Kenneth R. Agent

Kentucky Transportation Center Research Report

In an effort to reduce traffic in central business districts, bypasses have been built to provide through traffic a circumferential route and also to ease the burden of traffic in downtown areas. In many cases, though, bypasses have created a serious accident potential because they were built with at-grade intersections and no access control. This has led to commercial developments along the bypass and congestion at major intersections. When congestion increases at an intersection, traffic signals must be installed; this increases vehicle operating and time costs and creates a rear-end collision potential. In some cases, the bypass circumvents a relatively …

Engineering Data System For Bedrock Occurrences And Properties, D. J. Hagerty, Robert C. Deen, M. W. Palmer, C. D. Tockstein

Kentucky Transportation Center Research Report

The initial work plan included the development of a classification system based on index tests. An investigation of previous works in classification of rock on the basis of index tests showed that a variety of classification systems utilizing many different index tests had been developed. However, this survey showed that no generally applicable system had been developed and that little communication had been established between field investigators, facility designers, and those in charge of construction and maintenance of facilities. Therefore, the initial plan for work was modified to include the development of a comprehensive methodology for evaluation of rock. The …

Pedestrian Accidents In Kentucky: 1972-1973, Charles V. Zegeer

Kentucky Transportation Center Research Report

Pedestrian accident data in Kentucky were analyzed for 1972 and 1973 on a rural, urban, and statewide basis. Results showed that about 1500 pedestrian accidents occur in Kentucky each year and cost over $11 million. About 30 percent of pedestrian accidents in rural areas and 4 percent in urban areas are fatal. Although about 78 percent of Kentucky's pedestrian accidents occur in urban areas, over 62 percent of the pedestrian fatalities occur in rural areas.

Specific characteristics of pedestrian accidents were identified and related to human, environmental, and time factors. Highway and street improvements and safety programs generally considered to …

Vehicle Noise Survey In Kentucky, Kenneth R. Agent, Rolands L. Rizenbergs

Kentucky Transportation Center Research Report

Individual noise measurements were obtained on 10,500 motor vehicles operating on Kentucky highways. The roadways were selected to represent varied geometric and environmental conditions and posted speed limits. Percentages of automobiles and trucks exceeding a given level of noise were determined. As expected, noise levels of trucks were significantly higher than for automobiles, and larger trucks produced higher noise levels than smaller trucks. For any vehicle type, noise increased with an increase in speed limit.

Temperature Distributions In Asphaltic Concrete Pavements, Herbert F. Southgate, Robert C. Deen

Kentucky Transportation Center Research Report

The straight-line relationship between temperatures at a given depth and the surface temperatures combined with 5-day average air temperatures appears to be as valid for upper New York state and Arizona as for Maryland. The main differences were in the annual ranges and annual mean temperatures. The concept for estimating pavement temperature distributions appears to be valid and may be used with confidence for estimating pavement temperatures at all latitudes and longitudes.

Ellipsometric Function Of A Film-Substrate System: Applications To The Design Of Reflection-Type Optical Devices And To Ellipsometry, R. M.A. Azzam, A.-R. M. Zaghloul, N. M. Bashara

Electrical Engineering Faculty Publications

The ratio ρ = R_p/R_s of the complex amplitude-reflection coefficients R_p and R_s for light polarized parallel (p) and perpendicular (s) to the plane of incidence, reflected from an optically isotropic film-substrate system, is investigated as a function of the angle of incidence ϕ and the film thickness d. Both constant-angle-of-incidence contours (CAIC) and constant-thickness contours (CTC) of the ellipsometric function ρ(ϕ,d) in the complex ρ plane are examined. For transparent films, ρ(ϕ,d) is a periodic function of d with period D_ϕ that is a function of ϕ. …

A Circular Active Reflector Atenna (Cara), Energy Distribution Calculations, And An Experimental Test, Larry V. Knight, George H. Barry

Faculty Publications

Conventional high-frequency (HF) circular phased arrays, such as the Wullenweber circular array, have a cost factor that increases at a greater-than-square law rate as its radius is increased to produce larger apertures. A new method of forming simultaneous beams in an HF circular array has been proposed in which beams are formed in the space within the array from pickup element energy that has been amplified and reradiated. Such a device is called a circular active reflector antenna (CARA), and its cost increases at a substantially linear rate as its radius is increased to form larger apertures. This paper describes …

Wave Induced Pressures On Submerged Plates, William W. Durgin, Jong C. Shiau

Office of the Provost Scholarship

The prediction of forces, or more precisely, the pressure distributions, experienced by submerged structures due to the passage of gravity waves has become important with the advent of large offshore structures. If the size of a structure is small compared to the wavelength then the forces can be evaluated by the assignment of suitable drag and inertia coefficients using an approach similar to that of Morison (6) in which case it is necessary to determine the coefficients experimentally for any given geometry (2). If the size of the structure is a significant fraction of the wavelength, the preceding method is …

Data Acquisition And Management For Rock Evaluation, M. W. Palmer

Kentucky Transportation Center Research Report

The primary goal of this thesis was the formulation of an integrated effort to collect, maintain, exchange, and evaluate engineering data on rock materials from a variety of information sources. The proposed rock evaluation program provides a data base of accumulated information by establishing procedures for characterizing rock, from specimen acquisition through indexing, classification and correlation studies of data, and the application of data for site selection, use tables, establishment of design parameters and alternatives, and maintenance of engineered facilities. The co-ordinated evaluation system detailed herein provides guidelines for implementation of an extensive system of data storage and retrieval to …

Cost Comparison Of Short Span Bridge Structures, Alan R. Main

Indiana Local Technical Assistance Program (LTAP) Publications

This report attempts to give the county engineer a guide for estimating the cost of several types of bridge structures for a particular situation.

Effect Of Pavement Texture On Traffic Noise, Kenneth R. Agent, Charles V. Zegeer

Kentucky Transportation Center Research Report

Tire noise is one of the primary sources of highway noise, particularly at high speeds. Different types of road surfaces generate different noise levels. Noise data were collected on eight different surface types found in Kentucky. Noise measurements were made using a reference car, and noise recordings were obtained from the traffic stream. A reference truck was used for one test. It was found that portland cement concrete; Class I, Type A and A(Modified) bituminous concrete; chip seals; and open-graded, plant-mix seals were more or less "normal" surfaces in regard to generated noise. Sand-asphalt and Kentucky rock asphalt surfaces were …

Instruction Design To Minimize Program Size, James F. Wade, Paul D. Stigall

Electrical and Computer Engineering Faculty Research & Creative Works

No abstract provided.

Hmo, A Hardware Microcode Optimizer, James O. Bondi, Paul D. Stigall

Electrical and Computer Engineering Faculty Research & Creative Works

This Paper Discusses an Algorithm for Optimizing the Density and Parallelism of Micro coded Routines in Micro programmable Machines. Besides the Algorithm itself, the Algorithm's Uses, Adaptability to Conventional Machine Characteristics, and Architectural Requirements Are Also Discussed and Analyzed. Even Though the Paper Proposes a Hardware Implementation of the Algorithm, the Algorithm is Viewed as an Integral Part of the Entire Microcode Generation and Usage Process, from Initial High-Level Input into a Software Microcode Compiler Down to Machine-Level Execution of the Resultant Microcode on the Host Machine. It is Believed that, by Removing Much of the Traditionally Time-Consuming and Machine-Dependent …

Energy Efficiency And Conservation Of Building Hvac Systems Using The Axcess Energy Analysis Computer Program, Ronald H. Howell, Harry J. Sauer Jr.

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

This paper discusses the use of the AXCESS-UMR energy analysis computer program applied to two different buildings. The monthly and yearly energy requirements of many of the commonly used HVAC systems for a single-story multi-zone building are found and compared. Energy conservation techniques are also evaluated for a two-story St. Louis office building.

Creating The Electric Energy Economy, L. G. Hauser

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

My remarks will be directed to four points:

First, that energy is the life blood of our economy, and that its use or conservation is far from a simple matter of personal habits of waste or frugality. In other words, the vital role energy plays in the production of goods and services should be distinguished from its use in their consumption.

Second, that our excessive dependence on our two scarcest energy resources -- oil and natural gas -- is the core of the energy problem, both U.S. and worldwide.

Third, that limiting our time horizon to this winter, next summer, …

Control By Code Of Energy Usage In Building Systems, Harry J. Sauer Jr., Ronald H. Howell

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

Space heating, air-conditioning and refrigeration accounts for over 30% of the total energy use in the U.S. ASHRAE Standard 90P, ENERGY CONSERVATION IN NEW BUILDING DESIGN, sets forth requirements for the design of all types of new buildings, covering their exterior envelopes and selection of their HVAC, service water heating, electrical distribution and illuminating systems and equipment for efficient use of energy. This paper reviews the current status, content, and implications of the proposed energy standard and reports some experience with its use.

Centralized Solar Wind Home Heating, Russell Peterson, Duane Cromack

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

In the immediacy of national goals for energy independence, the need emerges to use dialectic methods to diminish the energy consumptive characteristics of the typical home.

At the cutting edge of resourceful progress are the residential developments which embrace alternative and conservative energy techniques. In conjunction with such a planned, low impact community, this paper proposes a cluster-centralized system which utilizes wind energy in combination with solar thermal energy for space and domestic water heating.

A description of the random solar-wind resource embodies a matching problem that in turn reveals the benefits of the combined mode of energy collection. Though …

Energy And Transportation Policy, James S. Sagner

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

Energy shortages of recent years suggest a re-examination of national transportation policy. The lack of a coordinated approach to the solution of urban cogestion inhibits potential short-run responses to gasoline shortfalls. Longer-range policy, particularly in the context of severe financial constraints, must be carefully integrated with demonstrated patterns of urban travel and population and employment densities. Given these considerations, metropolitan areas now planning or constructing rapid rail facilities may be selecting inappropriate responses to the problem of urban access.