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Acknowledgement Of Symposium Moderators, University Of Missouri--Rolla

UMR Journal -- V. H. McNutt Colloquium Series

No abstract provided.

Summary Of Pavement Surface Texture Measurement Methods, Jerry G. Rose

Kentucky Transportation Center Research Report

This tabular summary represents an expanded version of a draft prepared under the direction of Prof. Bob M. Gallaway of Texas A & M University. The table was compiled from a literature survey conducted during spring 1970. A survey of all states and agencies engaged in quantitative measurements of surface texture would be helpful for updating and finalizing the table. In the meantime, any comments or suggestions concerning any of the tabular entries or other methods of surface texture measurement should be addressed to Dr. J. G. Rose, Research Engineer, Division of Research, Kentucky Department of Highways, 533 South Limestone, …

Summary Of Pavement Surface Texture Measurement Methods, Kentucky Department Of Highways

Kentucky Transportation Center Research Report

This tabular summary represents an expanded version of a draft prepared under the direction of Prof. Bob M. Gallaway of Texas A & M University. The table was compiled from a literature survey conducted during spring 1970. A survey of all states and agencies engaged in quantitative measurements of surface texture would be helpful for updating and finalizing the table. In the meantime, any comments or suggestions concerning any of the tabular entries or other methods of surface texture measurement should be addressed to Dr. J. G. Rose, Research Engineer, Division of Research, Kentucky Department of Highways, 533 South Limestone, …

Hot-Mix Coal-Tar Concrete Pavement, Donald C. Newberry Jr., Jerry G. Rose

Kentucky Transportation Center Research Report

The principle objectives of this research were:

1. To compare the economics and performance of coal tar to asphalt cement;
2. To develop reliable coal-tar construction specifications;
3. To familiarize personnel with coal-tar construction; and
4. To implement Section 201, Subsection d and e, of the Appalachian Regional Development Act of 1965.

To accomplish these objectives, a 6.6-mile experimental section utilizing coal-tar (RT-12) concrete base and surface and 5.1-mile and 5.7-mile control sections utilizing asphalt (PAC-5) concrete base and surface were placed on relocated KY 15 in Perry, Knott, and Letcher Counties during the 1969 and 1970 construction seasons. The pavement consisted of an …

Guidelines For Traffic Counts On County Roads, Eugene R. Russell, Jean E. Hittle

Indiana Local Technical Assistance Program (LTAP) Publications

This manual has been developed to provide county highway personnel with guideline procedures for counting traffic volumes. While the emphasis is on county roads, the procedures are equally applicable to any highway, road or street; therefore, city street and state highway personnel may also have an interest in the guideline procedures outlined herein.

Preface, Paul Dean Proctor, Robert E. Carlile

UMR Journal -- V. H. McNutt Colloquium Series

Because this university, formerly under the well known title of Missouri School of Mines and Metallurgy, has contributed so much to the nation’s and world’s mineral supplies through the work of its well trained graduates, it was considered appropriate that a major symposium be held during its Centennial Year on one of the last major mineral frontiers of the United States......Alaska.

Preliminary planning for the symposium on “Alaska, Its Mineral Potentials and Environmental Challenges” began in the fall of 1969. In January, 1970, Robert E. Carlile and Paul Dean Proctor visited Alaska to meet with some of the petroleum and …

Local Mole Fraction Equations For The Excess Free Energy Of Mixing, Jose Mario Marina

Dissertations

An extensive study of local mole fraction equations aimed at obtaining a two parameter expression for the Excess Free Energy of miscible and immiscible systems has been undertaken.

Initially our approach was to modify existing equations by substituting those parameters reflecting interaction between like molecules by the pure component energies of vaporization. This resulted in a one parameter modification of the three parameter Wilson equation, which correlates data poorly and a two parameter modification of the NRTL equation which correlates binary miscible data with fair accuracy. A modification of the Scatchard-Hildebrand equation, where mole fractions are substituted by local mole …

A New Technique For Steady State And Transient Analyses Of Incompressible Flow Networks, George V. Catanzaro

Theses

A new technique for the calculation of the transient or the steady-state mass flow rate and pressure distribution in incompressible flow networks is presented. Employing the matrix method of network analysis, the nodal continuity and branch momentum equations are solved simultaneously to obtain explicit relations giving the unknown nodal pressures and branch mass flow rates. In this manner, the transient or the steady-state behavior of incompressible flow networks with arbitrary configuration having nodal sources and sinks as well as branch transducers can be determined. In contrast with the conventional steady-state network analysis methods, the new technique can be extended to …

Numerical Simulation Of Partially Neutralized Relativistic Electron Streams., Ludwig Adam Gritzo

Nuclear Engineering ETDs

The self-focusing of partially neutralized relativistic electron streams {Bennett pinch) is briefly discussed, and analytic solutions for idealized sets of conditions are reviewed.

A computer code for the numerical simulation of the drifting of a relativistic electron stream through an initially neutral gas, with the concurrent production and motion of ions and secondary electrons, is discussed in detail. The simulation conditions are restricted to (1) electron streams whose transverse momentum is small compared with their longitudinal momentum, and (2) low gas pressures, where the background plasma current and current density are low compared with the injected current. Only those electromagnetic …

On The Interaction Of Aluminium And Iron Calcium Borate Glasses And Its Effect On The Properties Of Their Composites, Sherif K. Arif

Archived Theses and Dissertations

No abstract provided.

Structural Stability In Earthquake Engineering., Aybars GüRpinar

Civil Engineering ETDs

To pate, only special cases of dynamic stability have been solved. In this dissertation, an attempt is made to obtain practical solutions to the stability problem in earthquake engineering.

A column supporting a concentrated mass at the top is treated as a single-degree-of-freedom system. The system is assumed to be linearly e·1astic with viscous damping. It is subjected to both horizontal and vertical random acceleration at the base, which are taken to be a band limited white noise simulating earthquake motions. The objective of this investigation is to find the probability of instability of the system.

Two methods of solution …

Hydraulics Of Waste Stabilization Ponds And Its Influence On Treatment Efficiency, Kenneth A. Mangelson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The treatment efficiency of waste stabilization ponds depends on many factors, the most important of which are generally presumed to be the biological factors such as the type of waste and the organic loading. However, the biological activity in a pond is greatly influenced by the environmental conditions of temperature, wind, sunlight, and the hydraulic flow patterns. In the past little attention has been given to the hydraulic characteristics of waste stabilization ponds. Specifically, little consideration has been given to the gross flow patterns within stabilization ponds as affected by the shape of the pond or lagoon, the presence of …

A Comparison Of Technologist Needs And Training Requirements Of The Major Industries Within The State Of Utah, Gene E. Forsberg

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The technologist needs and training requirements were determined from a selected cross-section of Utah industrial firms.

The larger industries were significantly more aware of the training requirements and capabilities of four-year technologists than were the smaller firms.

A significant difference was found regarding general and specialized training required by each firm. Thirteen of the 16 responding firms indicated specialized training as being most important.

The 10 areas of technical training rated most critical in their order of importance were: electronics, technical writing, electricity, English, mathematics (calculus and above), machine shop, manufacturing processes, physics, and metallurgy and design.

There was no …

Phosphorus Distribution In The Bottom Sediments Of Hyrum Reservoir, Kirk L. Schmalz

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The distribution of phosphorus in the sediment of Hyrum Reservoir was studied by collecting and analyzing 84 sediment samples for total, inorganic, organic, and water-soluble phosphorus.

Sample locations were mapped by triangulation and sediment phosphorus distribution maps were made. Sediment analysis showed average total phosphorus content of 755 micrograms per gram, with organic phosphorus composing approximately 97 percent of total phosphorus.

Sediment samples showed variability in phosphorus content which precluded identification of point sources of phosphorus input to the reservoir. Several areas of comparatively higher phosphorus content in the sediments were shown with isopleth maps.

An estimate of the extent …

Experimental Installations Of Impact Attenuation Devices, Bruce S. Siria, William M. Seymour, Don L. Cornette, James L. Miller

Kentucky Transportation Center Research Report

The expanding system of limited access, multilane highway facilities in the United States has enhanced traffic service between many varied origins and destinations. As a result, these facilities have not only reduced travel times and travel costs, but have generated additional travel by virtue of their technological splendor. The increasing dominance of multilane highways in terms of percentage of total vehicle miles travelled has produced a revolution in highway engineering philosophy. Higher design speeds, increased lane widths, lateral separation of opposing traffic streams, absence of passing restrictions, and increased traffic capacities were attributes intuitively sought. An ironic result is the …

Measurement Of Soil Moisture By Attenuation Of A Vertically Polarized Radio Wave, Arlo D. Mickelsen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this thesis is to determine feasibility and to investigate some of the problems encountered in making soil moisture measurements using radio wave propagation. The procedure consists of propagating a vertically polarized wave over the earth and measuring the field strength attenuation. A brief summary of present methods of measuring soil moisture is given.

Certain aspects of radio wave propagation theory are discussed, covering such topics as the surface wave, the space wave, the skin depth, and the effect of the dielectric constant on radio wave propagation. Based on this theory, measurement parameters such as frequency, antenna separation, …

Computer Simulation Of Urban Runoff Characteristics Within Salt Lake County, Robert Newman Parnell

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A hybrid computer program is developed to simulate the outflow hydrographs of two urban watersheds located within Salt Lake County, Utah. The gaged outflow of the watersheds provided a checkpoint for comparing the observed and the simulated final outflow hydrographs.

The outflow hydrographs for each subzone of the two watersheds were obtained by abstracting interception, infiltration and depression storage from each subzone hyetograph. The outflow of the subzones were routed to the Jordan River, the final outflow point of the two watersheds. The final hydrographs of the watersheds were combined and compared with the gaged flow.

The uniquenesses of this …

A Correlation Study Of The Washington Pre-College Test Scores To Determine Which Scores Are The Best Predictors Of Success In Flight Aviation At The Big Bend Community College, Richard H. Pearce

All Master's Theses

The purpose of this study is to determine how a student's Washington Pre-College test results and his high school grade point average can best be used in deciding which people have the greatest chance to succeed in the Big Bend Community College flight aviation program. For the past four years of the aviation program it has been necessary to choose approximately seventy students for the program from as many as two hundred applicants. The counseling staff of the college in cooperation with the flight aviation department has used the high school grade point average as a primary tool in order …

Hydrologic Inventory Of The Great Salt Lake Desert Area, Gary L. Foote

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

Utah, located in the arid southwest, is a state that experience s chronic water shortages. The pattern of valleys and high mountain ranges that exists in the state produces sharply contrasting differences in climatic conditions . Desert valleys in the western portion may receive as few a s 4 inches of precipitation in a year while headwater areas in the Wasatch Mountains receive 60 inches or more. Wide cyclic as well a s geographical variations of precipitation added to uneven seasonal distribution makes development and efficient utilization of water resource s vital though difficult.

In order to make the most …

Fastener Strength In Diaphragm Braced Members, Amir Simaan, George Winter, Teoman Peköz

CCFSS Library (1939 - present)

SUMMARY In conjunction with research projects on diaphragm-braced members conducted at Cornell University, this investigation deals with the function of the fasteners in the braced system. In these systems, the diaphragm resists the lateral deflections of the braced members, in its plane, by virtue of its shear regidity (Qdr) and its shear strain capacity Yd (as a measure of strength). Considering the system in a slightly deformed shape, compatibility of displacements and forces between the diaphragm and the braced member at their connection locations, implies that the fasteners at these locations are subjected to the action of a system of …

Development Of An Electronic Means Of Weighing Vehicles In Motion, Ben W. Carr Jr., Rolands L. Rizenbergs

Kentucky Transportation Center Research Report

An in-stream weighing platform was designed and installed in the eastbound lane of I 64 and 75 near Lexington, Kentucky. The broken-bridge scale platform was designed with the outer edges of the two sections supported on hinges and contiguous edges supported by two 20,000-pound capacity load cells. The assembled scale measures 4'-6" x 10'-1/2" with a total weight of about 2,000 pounds.

The electronics developed for the system included digitizing circuitry which processed the load cell signals and recorded the data on digital magnetic tape. Computer processing of the field data produced tabular information on vehicle speed, axle spacing, number …

An Experimental Investigation Of The Vortex Sink Rate Sensors, Nelson L. Lu

Mechanical & Aerospace Engineering Theses & Dissertations

The vortex sink rate sensor device consists basically of an ideal sink flow between two coaxial disks. A sink tube was located at the center of one disk. The vortex was created by the rotation of the unit about its axis of symmetry. Five inch and 10 inch diameter of porous couplers were used for the air chamber here in this investigation. Several slenderness parameters, i.e., the ratio of the sink tube diameter to the height of the air chamber ^ro/n were conducted. Two probes were used to measure the static pressure and stagnation pressure respectively at various positions …

Transverse Vibration Of A Class Of Orthotropic Plates, Nicholas J. De Capua

Dissertations

This study determines the eigenvalues, eigenvectors, and nodal patterns of a class of orthotropic plates whose geometry is governed by the equation

(x/a)^α + (y/b)^β = 1,

where the parameters a, b, a, and a permit the plate geometry to vary over a range which includes the rhombus, circle, ellipse, square, and rectangle.

Variable thickness, inplane forces, and mixed or discontinuous boundary conditions are also considered. The following assumptions have been employed:

i). plate is thin with respect to other dimensions,

ii). deflections are small,

iii). rotary inertia and shear are neglected.

The method of analysis employed is …

On The Phenomenon Of Vortex Street Breakdown, William W. Durgin, Sture K.F. Karlsson

Office of the Provost Scholarship

A von Kármán vortex street generated in the usual way was subjected to a deceleration, thereby changing the ratio of longitudinal to lateral spacing between the vortices. Distortion of the individual vortices followed which resulted in annihilation of concentrated vortex regions and creation of a stationary wake flow. This wake flow was itself dynamically unstable and developed into a new vortex street of a different frequency from the initial one. The breakdown of the initial vortex street is qualitatively explained by considering the convection of a concentrated vortex region due to the motion imposed by all the other vortices.

Identification Of Linear Systems With Delay Via A Learning Model, Hugh Francis Spence

Doctoral Dissertations

"The effects of input delay on an identification scheme using a learning model are investigated. The parameter adjustment laws for the learning model are derived through Lyapunov methods similar to those used for the model reference adaptive control systems of Parks. For no measurement noise or delay mismatch between the learning model and system, the parameters are adjusted to bring the error between model and plant to zero. When there is delay mismatch between the inputs of the learning model and the unknown system, the convergence of the parameters of the learning model to those of the unknown system is …

Hydrologic Inventory Of The Great Salt Lake Desert Area, Gary L. Foote, Robert W. Hill, Daniel H. Hoggan

Reports

The Great Salt Lake Desert, located in the southwest corner of the State of Utah"is a very dry region with sparse population and relatively small scattered areas of development. Since only a meager amount of hydrologic data has been collected and compiled for this relatively undeveloped area, the inventory presented herein is but a general appraisal of hydrologic conditions. Because of the small amount of development that has taken place and the general lack of hydrologic data, a water budget analysis is included for the Tooele Valley only.

Hybrid Computer Simulation Of The Accumulation And Melt Processes In A Snowpack, Keith O. Eggleston, Eugene K. Israelsen, J. Paul Riley

Reports

This study represents the first phase of an investigation to develop an operational simulation model of the point snowmelt process based on a time increment of one day or less. Mathematical relationships for various phenomena involved in the snowmelt process were proposed and tested. These relationships were combined into a model which is applicable to any geographic locations by determining appropriate constants for certain relationships. The model was synthesized on a hybrid computer and calibrated using field data from the Central Sierra Snow Laboratory. It was then tested with data from other well instrumented locations. Sensitivity tests were also conducted …

A Computer Model Of The Quantity And Chemical Quality Of Return Flow, Jimmie L. Thomas, J. Paul Riley, Eugene K. Israelsen

Reports

A hybrid computer program is developed to predict the water and salt outflow from a river basin in which irrigation is the major water user. A chemical model which predicts the quality of water percolated through a soil profile is combined with a general hydrologic model into form the system simulation model. The chemical model considers the reactions that occur in the soil, including the exchange of calcium, magnesium, and sodium cations on the soil complex, and the dissolution and precipitation of gypsum and lime. The chemical composition of the outflow is a function of these chemical processes within the …

The Effect Of Carbon On Algal Growth--Its Relationship To Eutrophication, Joel C. Goldman, Donald B. Porcella, Joe E. Middlebrooks, Daniel F. Toerien

Reports

Introduction: Natural and cultural eutrophication (enrichment with nutrients) frequnetly results in excessive algal growths thereby reducing the beneficial uses of surface waters (Hasler, 1947; Thomas, 1955, Edmondson et al., 1956, Oswald and Golueke, 1966, Skulberg, 1967, Mackenthun et al., 1968, Goldman and Armstrong, 1969, McGauhey et al., 1968,1969, 1970a, 1970b). Recent reviews emphsize that the prevention of further reduction in the quality of water resources requires the implementation of effective control measures (Goldman, 1965, Steward and Rohlich, 1967, Middlebrooks et al., 1969, Rohlich, 1969). Effective control of cultural eutrophication must involve the manipulation of those factors which affect algal growth, …

Detergent And Non-Detergent Phosphorus In Sewage, Donald B. Porcella, E. J. Middlebrooks

Reports

Introduction: Quantitative data on nutrient levels in sewage from homes which are using heavy-duty detergents and which have been restrcited from using such detergents is necessary before rational decisions on the removal of phosphorus from detergetn can be made. Furthermore, the effect of various standard sewage treatment schemes on phosphorus levels should be evaluated to determine the relative cost of such treatment. Then the cost (to society, the environment, and to the taxpayer) of phosphorus removal from detergent and/or from sewage effluents can be estimated and such data utilized to make the appropriate policy decisions. The report herein presented is …