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Column Research Council: Proceedings 1973, Column Research Council

CCFSS Library (1939 - present)

One of the purposes of the Council is to maintain a forum where problems related to the design and behavior of columns and other compression elements in metal structures can be presented for evaluation and discussion. The Annual Technical Session provides opportunity to carry out this function. The 1973 Annual Technical Session was held on May 2 and 3 at the Los Angeles Hilton Hotel in Los Angeles, California. Sixty persons attended the Session and thirty-three papers were delivered. A panel discussion on "Frame Stability Under Seismic Loading" was held in the evening of May 2, 1973. Panelists were E. …

A Feasibility Study Of Aircraft Mechanics Program And Flight Training At Spokane Community College, Kenneth Gaylord Brown

All Master's Theses

This paper was designed to study the flight-training program of the aviation department at Spokane Community College and its relationship to mechanics employability. Questionnaires were designed to sample the mechanic-employer relationship in regard to mechanics with flight experience to determine whether this experience was an advantage or detriment to the aircraft mechanic seeking employment.

Recommendations proposed were expansion of the existing flight program at Spokane Community College and the practicality of adoption of flight training by similar schools.

Quantification Of Pollutants In Surface Runoff From Agricultural Lands In Brookings County, South Dakota, Leland Lester Harms

Electronic Theses and Dissertations

Surface runoff from snowmelt and rainfall was measured 1n eastern South Dakota from seven sites (7.18 to 18.69 acres) during 1971 and 1972. All sites had single crops which included corn, oats, pasture and hayland. All land was farmed under normal farming conditions. Samples were taken periodically throughout each runoff event, and a single composite sample was made from the individual samples for a particular site. The composite sample represented the entire runoff event. The amount of rainfall and the runoff flow were measured. Determinations on the composite sample included total coliform, fecal coliform, fecal streptococcus, soluble pesticides, specific conductance, …

Oceanic Shear Measurements Using The Airfoil Probe, Thomas Osborn, Thomas Siddon

Symposia on Turbulence in Liquids

Vertical profiles of salinity and temperature in the ocean reveal fluctuations with length scales as small as a few mil 1imeters. These fluctuations, called microstructure by oceanographers, are the small scale results of turbulent mixing processes. It is hoped that through the study of microstructure we can evaluate the relative importance of different sources of the turbulent energy (e.g., tides, large scale internal waves, etc.) and the mechanisms for generation of the turbulence (e.g., wave overturn, shear instability, etc.).

There is a considerable body of evidence to suggest that shear instability is an important mechanism in the generation of ocean …

Letters To The Editor, J. T. Mason, Orrin K. Crosser, Robert D. Gunn, C. Judson King

Chemical and Biochemical Engineering Faculty Research & Creative Works

No abstract provided.

The Des Moines Rapids: A History Of Its Adverse Effects On Mississippi River Traffic And Its Use As A Source Of Water Power To 1860, Donald L. Enders

Theses and Dissertations

During the 19th Century, the Mississippi River was the chief commercial highway in the United States. But for two impediments, the Upper and Lower (Des Moines) Rapids, its entire course of 2400 miles would have offered an untroubled thoroughfare to watercraft.

The federal government, as well as private concerns, attempted throughout the better part of that century to alleviate the river of its barriers and to develop its rapids as a source of power. Those attempts were disappointingly unsuccessful, however, and not until the advent of the 20th Century, when the nation had matured both economically and technologically, was the …

A Geographic Study Of Stone Houses In Selected Utah Communities, Barry M. Roth

Theses and Dissertations

This thesis will investigate the spatial location of stone houses and the areal differentiation of several characteristics of stone houses in selected communities. Some differences in cultural and historical factors and in types of building stone, quarries and quarrying techniques will be studied. The thesis will also investigate why stone houses are still in existence and things that owners, residents, and others like and dislike about them.

Device For Obtaining From Small Ponds Water Samples Or Lagoons, J. Kent Mitchell, Elbert C. Dickey

Department of Agricultural and Biological Systems Engineering: Faculty Publications

A research project was recently initiated which requires that water quality samples be taken from small ponds and lagoons in west-central Illinois. A method for obtaining these pond water samples was desired that could be handled conveniently by one person and would not require a small boat. The pond water sampler described here was developed to satisfy this need.

The sampler developed allows one person to obtain a water sample at any desired depth while remaining on the shore. After assembling the device it may be floated to any position on the pond surface, lowered to the desired depth, and …

Sampling Pond Water Without A Boat, Elbert C. Dickey, J. Kent Mitchell

Department of Agricultural and Biological Systems Engineering: Faculty Publications

Nitrate levels in farm ponds are determined with the aid of a water sampler that can be operated from the shore

The quality of pond water in southern and western Illinois is being determined with the aid of a new type of water sampler developed in the Department of Agricultural Engineering.

Work on the sampler began as part of a study of water supplies in Washington County. This study, which is being conducted through the College of Agriculture Council on Environmental Quality, was initiated in the winter of 1970, after high nitrate levels were found in the county's water supplies. …

A Technique For Improving Material Balance Accuracy In Reservoir Simulation Models, A. R. Merchant, Marion D. Arnold, A. Herbert Harvey

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

One criterion for determining the precision of pressures calculated by a simulation model is the accuracy of the material balance. A high degree of precision in the calculated pressures is a necessary but not sufficient condition for elimination of significant errors in the prediction of fluid migration in the reservoir. A new procedure, called error matrix technique, has been developed for reduction of material balance errors. This reduction is accomplished by adjusting potential gradients at every grid point in the simulation model so that the material balance is accurately maintained. Performance of a hypothetical oil reservoir was simulated both by …

A Comparison Of Three Urban Hydrology Models, Richard F. Astrack

Masters Theses

"Three models, the British Road Research Laboratory Hydrograph Method, the Hydrocomp Simulation Program, and the HEC-1 Flood Hydrograph Package, are applied to the Boneyard Creek basin. Comparing the ability of these models to reproduce the observed peak discharge, time of the peak, and the first runoff volume determines the accuracy of these models"--Abstract, page iii.

A Highway Rest Area Design Based On A Use Study In Outstate Missouri, Dimitris Peter Perandakos

Masters Theses

"The limited number of rest areas in the State of Missouri does create a major problem for the motorist travelling in this state.

The author became more aware of this problem from personal experience and decided to investigate it. For that he interviewed over one thousand motorists on the only rest area that is located on 1-44, near the city of Stanton. He also took traffic counts to determine the average daily traffic volumes of Highway 1-44 and of the rest area stated above.

The data collected from the above steps was used for the design of a new rest …

A Formal Description Of The Nova-800 Computer In Computer Design Language, Ronald Lee Engelbrecht

Masters Theses

"This paper presents a formal description of the operation of the NOVA 800 in Computer Design Language (CDL). For simplicity, the description does not include specific input/output devices, the multiply/divide option, or data channel operations. The description is intended to be used as a supplement in a basic course in computer organization, and an example of its use is included"--Abstract, page ii.

Disposal Of Cattle Feedlot Wastes By Anaerobic Digestion, Eric Bayard Rapp

Masters Theses

"Disposal of animal waste represents a severe environmental problem, particularly in areas such as cattle feedlots where livestock are concentrated. Animal waste can be converted to carbon dioxide and methane by the autocatalytic process of anaerobic fermentation. A scheme, based upon this process, for the disposal of the waste from two different size feedlots is presented. The design of this process is based on kinetic data from the literature which are fitted to a kinetic model including diffusional resistances. Economic calculations based upon available cost data are made to determine the profitability of the process. Economic evaluations indicate that this …

0057: Addison Moffat Scott Papers, 1873-1939, Marshall University Special Collections

Guides to Manuscript Collections

Charleston, West Virginia, engineer. Papers relate to the construction and improvement of navigation on the Great Kanawha River with the first system of locks and dams. Includes bid proposals and specifications for the construction of locks, dams, and buildings.

Breakdown Of The Laminar Flow Regime In Permeable-Walled Ducts, E. M. Sparrow, G. S. Beavers, T. S. Chen, J. R. Lloyd

Mechanical and Aerospace Engineering Faculty Research & Creative Works

The stability of laminar flow in a parallel-plate channel having one permeable bounding wall is investigated by means of linear theory. The analysis lakes account of the coupling of the disturbance, fields in the channel and in the permeable material and of velocity slip at the surface of the permeable wall. Complementary experiments are performed in which the breakdown of the laminar regime in flat rectangular ducts is identified from pressure-drop measurements and from flow visualization studies. The experiments cover the range of slip velocities from 15-30 percent of the mean velocity and, in addition, the case of zero slip …

Investigation Of An Energy Absorbing Device For Passenger Safety, Prakash Krishnaswamy

Masters Theses

"Energy absorption by driving an oversized plunger through a longitudinally slit shell has been studied. The characteristics obtained by conducting several runs indicate that such a system could be used for energy absorption and for limiting the force required to drive the plunger through the shell. The characteristics can be readily altered by changing the dimensions of the tube. Details of the experimental set-up have been given.

Such an absorber has been adapted for mitigating injury sustained by the occupants in the interior of a colliding vehicle. Full advantage has been taken of the "Ride down" potential available to the …

Electrical Switching In Iron Calcium Phosphate Glasses, Mohsen Naguib Morcos

Archived Theses and Dissertations

No abstract provided.

Conference Proceedings Of The 3rd Biennial Symposium On Turbulence In Liquids, University Of Missouri--Rolla

Symposia on Turbulence in Liquids

The Third Biennial Symposium on Turbulence in Liquids showed further progress in the investigator's ability to measure turbulence parameters and in the general understanding of turbulence. The most impressive advances in measurement seemed to be the ability to measure deeper into the turbulent boundary layer in order to obtain profiles over the entire turbulence production region and the rapid development of conditioned-sampling techniques for studying hypotheses for mechanisms.

Ldv Measurements In Turbulent Free Convection, R. J. Adrian

Symposia on Turbulence in Liquids

The design and performance of a laser Doppler velocimeter (LDV) used in a turbulent water-overice convection experiment are described. The LDV was operated in a reference beam mode with an ultrasonic diffraction grating shifting the reference beam frequency to provide bipolar sensing of the vertical velocity, and a phase-locked loop was used to demodulate the Doppler frequency information. The maximum observed velocities in the experiment were ± 1 mm/sec, and the accuracy of instantaneous measurement was limited by Brownian motion and laser line width to ± .04 mm/sec for a 2 Hz frequency response. The practical difficulties encountered in this …

Phase Separation In Turbulent Two-Phase Flow, Francois J. Resch, Hans J. Leutheusser

Symposia on Turbulence in Liquids

The paper is based on an experimental study of a typical instance of bubbly two-phase flow, viz. the air-entraining roller zone of hydraulic jumps in open channels. The investigation was undertaken with the aid of hot-film anemometry techniques involving instant digitization of analog signals, and delayed electronic processing of the tape-recorded data. Special computer programs were designed to separate the two phases according to a well-defined signal threshold. It is this aspect of the work which is being dealt with in the paper.

Turbulent Characteristics Of Two-Phase, Gas-Liquid Stratified Channel Flow, D. M. Johns, T. G. Theofanous, R. N. Houze

Symposia on Turbulence in Liquids

The turbulence characteristics of the bulk phases were studied in a stratified, two-dimensional, gas- liquid channel flow. Initial results are presented comparing mean velocity and turbulent intensity profiles with those obtained in a prior study at the same bulk phase Reynolds numbers. The results indicate that comparison of two realizations of stratified gas- liquid flow cannot be adequately done on the basis of bulk-phase Reynolds numbers. Comparisons must be based on some more fundamental relationships involving the gas-liquid interactions.

An Investigation Of Combined Thermal Weakening And Mechanical Disintegration Of Hard Rock, George Bromley Clark, T. F. Lehnhoff, Vernon Dale Allen, Mahendrakumar Ramkrishna Patel

Mining Engineering Faculty Research & Creative Works

"The research under modified Contract No. H0220068 has been devoted to experimental thermal-mechanical fragmentation of Missouri red granite in place, and to supporting theoretical analyses. The results of the previous year's experimental work showed that thermal stresses are several times more effective in fragmenting hard rock when they are created within the rock rather than upon the surface. Also, large blocks {4-foot cubes) are not adequate to simulate the response of in situ rock.

Based upon laboratory tests an experimental round was designed analogous to an explosive blasting round with coiled wire heating elements placed in drill holes. Three displacement …

Engineering And Scientific Manpower- A Scarce Resource For The 1970'S, Merl Baker

Mechanical and Aerospace Engineering Faculty Research & Creative Works

No abstract provided.

Statewide Survey Of Blowups In Resurfaced Concrete Pavements : Interim Report, Paul Thomas Foxworthy

JTRP Technical Reports

No abstract provided.

Mechanical Behavior And Reinforcement Of Mineral Filler-Asphalt Mixtures : Technical Paper, David Albert Anderson, William Harner Goetz

JTRP Technical Reports

No abstract provided.

Evaluation Of Safety Improvements At Highway - Railway Grade Crossings : Interim Report, Thomas Allan Butcher

JTRP Technical Reports

No abstract provided.

A Study Of Bus Transit Planning In Small Urban Areas, Michael Stephen Herman, Gilbert T. Satterly, William Louise Grecco, Kenneth W. Heathington

JTRP Technical Reports

No abstract provided.

An Investigation Of The Effects Of Variations In Coarse Aggregate Gradation On Portland Cement Concrete, Stephen Daugherty Baker

JTRP Technical Reports

No abstract provided.

Land Use Development At Interstate Interchanges In Indiana, Lawrence Peter Fabbroni

JTRP Technical Reports

No abstract provided.