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Bulletin - September, 1982, Civil Aviation Medical Association

Browse all Civil Aviation Medical Association Newsletters

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

Scheme To Polarization-Correct A Waxicon, R. M.A. Azzam

Electrical Engineering Faculty Publications

No abstract provided.

Stationary Property Of Normal-Incidence Reflection From Isotropic Surfaces, R. M.A. Azzam

Electrical Engineering Faculty Publications

The complex reflection coefficients for the parallel (p) and perpendicular (s) polarizations of light that are normally incident upon an isotropic surface are proved to be stationary with respect to small changes of the angle of incidence in the neighborhood of zero. This is true not only for a single interface between isotropic media but also for any one-dimensionally inhomogeneous or multilayer reflecting structure that is stratified in the direction of the surface normal. For incident light of certain intensity, phase, and polarization, the intensity, phase, and polarization of the reflected light all remain stationary with …

Research On Atmospheric Volcanic Emissions: An Overview, James P. Friend, Alan R. Bandy, Jarvis L. Moyers, William H. Zoller, Richard E. Stoiber, Arnold L. Torres, William I. Rose, M. Patrick Mccormick, David C. Woods

Department of Geological and Mining Engineering and Sciences Publications

The project "Research on Atmospheric Volcanic Emissions" is a unique effort by NASA and university scientists to investigate the detailed chemical nature of plumes from volcanic eruptions. The major goals of the project are to: 1) understand the impact major eruptions will have on atmospheric chemistry processes, 2) understand the importance of volcanic emissions in the atmospheric geochemical cycles of selected species, 3) use knowledge of the plume chemical composition to diagnose and predict magmatic processes. Project RAVE'S first mission used the NASA Lockheed Orion P-3 outfitted with equipment to measure concentrations of the gases SO₂, OCS, H …

H & V News

Building Services Engineering

No abstract provided.

Diffusion Thermoeffect Measurements Of Heats Of Transport In Ternary Liquid Toluene Chlorobenzene Bromobenzene Mixtures At 25°C And 3°C, Richard L. Rowley, Gerald Platt, Tevin Vongvanich

Faculty Publications

Heats of transport in ternary nonelectrolyte liquid mixtures have been directly measured for the first time. Diffusion thermoeffect measurements have been made for ternary mixtures of toluene-chlorobenzene-bromobenzene at 25 degrees and 35 degrees C. A new boundary sharpening technique was used in addition to a liquid gate withdrawal method. Both techniques yield consistent, accurate values of the heat of transport, but the new cell provides versatility in allowable densities and compositions of the initial phases. Heats of transport were obtained by nonlinear least-squares fitting of calculated to experimental temperature differences measured at positions symmetric about the initial diffusional interface. The …

The Diffusion Thermoeffect In Ternary, Nonelectrolyte Liquid Mixtures, Richard L. Rowley, Gerald Platt, Tevin Vongvanich

Faculty Publications

Expressions for that portion of the heat flux which is due to composition gradients in multicomponent nonelectrolyte liquid mixtures have been formulated in terms of heats of transport. The resultant thermal energy equation in combination with component mass balance equations constitute coupled partial differential equations descriptive of the diffusion thermoeffect in liquid mixtures. These equations were solved with a double perturbation technique subject to initial and boundary conditions consistent with experimental design conditions considered appropriate for successful measurement of multicomponent heats of transport. Based on the adiabatic type cell, the expected temperature response, dependent on cell variables, experimental conditions, and …

The Use Of Appropriate Technologies For Biomass Waste Conversion In Small Communities, Samuel A. Vigil, Douglas W. Williams, Robert E. Spitzka, Hilary M. Theisen

Civil and Environmental Engineering

This paper will describe several simple, appropriate technologies for biomass waste conversion which can be applied in rural or small community settings. Technologies to be discussed include ethanol production from cannery wastes with a mobile fermentor/still, production of low-energy fuel gas from agricultural and municipal wastes. Each of the technologies will be briefly discussed below.

24th Rocky Mountain Conference

Rocky Mountain Conference on Magnetic Resonance

Abstracts and meeting program from the 24th annual meeting of the Rocky Mountain Conference, co-sponsored by the Rocky Mountain Section of the Society for Applied Spectroscopy and the Rocky Mountain Chromatography Discussion Group. Held in Denver, Colorado, August 1-5, 1982.

Highway Sizing, Joseph D. Crabtree, John A. Deacon

Kentucky Transportation Center Research Report

A critical examination is made of the conventional method for highway sizing, that is, determination of lane requirements. Ranked hourly traffic volume distributions, obtained from 1977 Kentucky volume stations are examined to test certain assumptions common to the conventional approach. Several of these distributions have no distinct "knee" and, for those which do, the knee is most frequently found outside the normally anticipated range. Of equal importance, the knee location can be arbitrarily altered simply by changing the number of highest volume hours that are examining.

The fundamental fallacy of the conventional procedure is its focus on a single design …

Traffic Accident Rates In Kentucky (1980), Kenneth R. Agent

Kentucky Transportation Center Research Report

A primary objective of this study was to determine average accident statistics in Kentucky in 1980 for use in identifying hazardous locations. To identify locations having an abnormal accident history, norms must be established and these norms must be kept up-to-date to maintain a reliable identification program.

Average accident rates were calculated using several methods of classifying highways. Average rates for counties and cities were calculated, and counties and cities with the highest rates for their population category were identified. A series of curves were drawn giving criteria which can be used to determine whether a particular location has an …

Summary Of Vehicle Classification Data, Joseph D. Crabtree

Kentucky Transportation Center Research Report

As part of an attempt to calculate accident rates for different vehicle types on various kinds of roads, it was necessary to determine the percentage of each vehicle type in the traffic stream for each type road. This was accomplished by summarizing Kentucky's Vehicle Classification File. The procedure used in summarizing the file and the results of the summary are presented in this report. Vehicle distributions are reported by number of lanes, by functional classification, by administrative classification, by federal-aid system, by hour of day, by day of week, and by month of year. It is believed this report provides …

Comparison Of Steady-State Pipe Network Computer Programs, Michael Bernice Holloway

Civil & Environmental Engineering Theses & Dissertations

Four widely used computer programs for the analysis of steady state flows in pipe networks are compared. These programs are NEWTH, written by Jeppson; KENTUCKY, written by Wood; FLOW, written by Epp and Fowler; and LIQSS, written by Stoner. Differences, similarities, advantages and disadvantages of these programs, and various options available are discussed for the benefit of possible future users. In addition, the efficiency of NEWTH, KENTUCKY, and FLOW was tested by simulating a typical network by each program. The listing of LIQSS was not available, and thus was not included in this comparison. In simulation, KENTUCKY used over twice …

H & V News

Building Services Engineering

No abstract provided.

Interfacing The Sdk-85 With Common Laboratory Equipment, Thomas A. Boerjan

Graduate Research Papers

The-SDK-85 is a low-cost microcomputer trainer well-suited for entry and intermediate level programming and also interfacing. From it the fundamentals of digital electronics and computer programming can be taught at the high school and college level. The objectives of this paper are to learn:

1. The basic hardware required for a simple computer trainer.

2. The software necessary to do simple tasks.

3. How to interface the SDK-85 to common laboratory equipment.

4. How industry is using digital electronics.

5. Basic hardware and software troubleshooting • techniques.

6. Instructional methodology to be used with the SDK-85.

An Exploratory Study On The Behavior Of Cold-Formed Steel Wall Studs, Yaochun Zhang, Teoman Peköz

CCFSS Library (1939 - present)

GENERAL Cold-formed steel wall studs are widely used in the U. S. and Canada. The 1980 A.I.S.I Specification (Ref. 1) contains provisions for the design of such wall studs based primarily on the research conducted at Cornell University (Refs. 2 and 3). This research involved theoretical and experimental studies on wall studs subjected axial loads only. The Specification provisions on the case of combined axial and lateral loading were derived intuitively and were made intentionally conservative. The excessive conservatism in the provisions for the combined loading case prevents using wall studs as economically as possible. The primary objective of the …

Taxonomy Of Corynebacterium Plant Pathogens, Including A New Pathogen Of Wheat, Based On Polyacrylamide Gel Electrophoresis Of Cellular Proteins, Randall R. Carlson, Anne K. Vidaver

Biological Process Development Facility: Staff Publications

The known extant plant pathogenic Corynebacterium species were analyzed by polyacrylamide gel electrophoresis of their cellular proteins. The patterns of the protein bands of 13 species and a new corynebacterial wheat pathogen showed seven distinct groups. Five of these groups consisted of only one species each, one group contained four species, and the last group contained the new wheat pathogen and the remaining four species. The pathogens that could not be distinguished by the polyacrylamide gel analysis differed in phenotypic characteristics, including pathogenic specificity. Thus, for these bacteria we propose recognition of the following taxa: C. fascians (Tilford) Dowson, …

Two-Phase Flow Pressure Drop Across Thick Restrictions Of Annular Geometries, Saeed Ghandeharioun

Retrospective Theses and Dissertations

This paper presents the methods of predicting the steady-state two-phase flow (steam and water) pressure drop across the restrictions of annular geometries formed when tubes extend through circular holes in tube support plates. Two approaches are discussed and a detailed sample calculation of the one selected is presented. The major areas of discussion are the orientation of tubes-to-tube support plate holes, and the thickness of tube support plate. Finally, the conclusion gives a comparison of methods and recommendations for future investigations.

Pavement Roughness In Kentucky, Gary W. Sharpe, David H. Cain, Herbert F. Southgate, James H. Havens, Robert C. Deen

Kentucky Transportation Center Research Report

Over two hundred pavement sections in Kentucky have been periodically measured for pavement roughness over a period of several years. This pavement service-life historical data can be used to assess quality of construction, pavement service-life, present and anticipated pavement condition. Road users perception of ride quality can be related to these measurements. Response-type road roughness measuring systems have been used to collect roughness measurements and correlation studies have been performed to relate measurements from current systems. Several factors influence pavement roughness. An early factor is construction workmanship. Other factors are traffic loading, environment, geology, and age.

Microsoftware For Facility Layout, James D. Anderson

Retrospective Theses and Dissertations

This study presents five supporting programs in the area of facility layout design. Programs are "stand alone" adapted type which cover data analysis and analytical techniques. Programs are From/To (From/To Chart generator), CRAFT* (Computerized Relative Allocation of Facilities Technique), RELVAL (Relationship Chart generator), CORELAP* (Computerized Relationship Layout Planning), and EVAL (Layout Evaluation program). Theory, complete program documentation, and case example for each program are presented. Programs are written in an interactive basic mode and have been tested on the Apple II Plus system.

Desirable Combinations Of Electrode And Flux For Submerged Arc Welding Of Low Carbon Steel, James A. Husmann

Graduate Research Papers

The major purpose of this study was to provide information about desirable combinations of welding electrode and appropriate fluxes for submerged arc welding of low carbon steel. Other purposes were to:

1. Test a variety of combinations of available submerged arc welding electrodes and fluxes in welding low carbon steel.

a. Prepare specimens for tensile tests.

b. Conduct tensile tests.

c. Calculate tensile strength, yield point, break point, percent of elongation, and percent reduction of area.

2. Determine the most desirable combinations of electrode and flux for companies presently using or planning to use submerged arc welding for low carbon …

Accelerated Testing To Compare The Corrosion Control Abilities Of Common Barrier Coatings Used By Autobody Repair Technicians, Kelvin Karl Kramer

Graduate Research Papers

The autobody repair technician has a choice of several different brands of undercoatings to be used to provide barrier protection against corrosion. This study attempted to determine if the corrosion control ability varied among the products available when those products were tested using accelerated corrosion testing procedures.

Hospital Short Term Planning Through Patient Census Forecast, Wenhao Chiu

Retrospective Theses and Dissertations

An adequate health care resource allocation in a hospital is directly dependent upon the ability to estimate the hospital's patient census accurately. Efforts to estimate hospital's patient census are classified into two general methods: estimating from historical data, and demographic analysis. This paper takes the position that the estimate from the historical data is more economic and convenient for understanding than the estimate from the demographic analysis. Seven models that predict hospital's patient census by using the hospital's historical data are evaluated to fit the characteristics of each pattern shown in historical information. Where a microcomputer is available, this forecasting …

On-Site Excreta Treatment And Disposal In West Africa, Godfrey E. Igbokwe

Retrospective Theses and Dissertations

In operation, liquid from the test facility is circulated through the RHS core. The liquid is heated by passing over the resistance heaters. If the test facility's calibrations are under investigation, the RHS input power and temperatures are compared with those recorded by the test facility. If a collector is under test, the RHS is placed in series with the collector. The power input to the RHS is placed in series with the collector. The power input to the RHS core heaters is adjusted to give a temperature rise through the RHS equal to some fraction (usually one-half to one) …

Concrete: Its History In Florida To World War Ii, John M. Weavil

Retrospective Theses and Dissertations

No abstract provided.

A Real Time Microprocessor Based Digital Lead-Lag Compensation, Vicente C. Garcia

Retrospective Theses and Dissertations

The dynamic performance of control systems can be improved by incorporating carefully designed compensators. Historically, these compensators have been implemented with analog hardware. However, digitally based compensator designs offer far superior advantages; such as no aging, repeatability, etc. The major reason for rejecting the digital approach to compensator design has been cost. With the introduction of the INTEL 2920 4-input, 8-output, real-time signal processing chip (with AD and DA on-board), cost is no longer a barrier. In this research paper, the complete software-hardware 2920 design cycle required to implement a lead-lag control system compensator is illustrated.

A Computerized Manpower Reporting System For Staff Departments Of A Manufacturing Organization, Laurence C. Oliver

Graduate Research Papers

The purposes of this study were to develop and implement a computerized reporting system that would meet the following criteria:

1. Be capable of handling the reporting needs of the entire industrial engineering department.

2. Produce accurate reports.

3. Be simple to use and maintain.

4. Be flexible, so that new reports could be included.

5. Be adaptable to any industrial engineering or staff department.

Interaction Of A Two-Dimensional Transverse Jet With A Supersonic Mainstream, Gilbert Otto Kraemer

Mechanical & Aerospace Engineering Theses & Dissertations

A experimental investigation of the interaction of a twodimensional sonic jet injected transversely into a confined main flow has been conducted. The main flow consisted of air at a Mach number of 2.9. The effects of varying the jet parameters on the flow field were examined using surface pressure and composition data. Also, the downstream flow field was examined using static pressure, pitot pressure, and composition profile data. The jet parameters varied were gapwidth, jet static pressure, and injectant species of either helium or nitrogen. The values of the jet parameters used were 0.039, 0.056,and 0.109 cm for the gapwidth …

An Investigation To Model Radar Backscatter From Ridged First Year Sea Ice, Betty Lou W. Jackson

Electrical & Computer Engineering Theses & Dissertations

This thesis investigates the response of a radar type sensor, the microwave scatterometer, to meter scale roughness of first-year sea ice. The scatterometer measures the absolute backscattered power from a target, and use of the radar equation permits calculation of the surface reflectivity expressed as the radar scattering coefficient, σ⁰ also called the normalized radar cross section. This thesis develops an empirical, one dimensional model to predict the backscattered power from ridged first-year sea ice of known surface topography, by interpreting the surface as a series of angular facets and summing the proportional power from each facet. The model …

Calculation Of Potential Flow Past Non-Lifting Bodies At Angle Of Attack Using Axial And Surface Singularity Methods, Jin-Yea Shu

Mechanical & Aerospace Engineering Theses & Dissertations

Two different singularity methods have been utilized to calculate the potential flow past a three dimensional non-lifting body. Two separate FORTRAN computer programs have been developed to implement these theoretical models, which will in the future allow inclusion of the fuselage effect in a pair of existing subcritical wing design computer programs.

The first method uses higher order axial singularity distributions to model axisymmetric bodies of revolution in an either axial or inclined uniform potential flow. Use of inset of the singularity line away from the body for blunt noses, and cosine-type element distributions have been applied to obtain the …