Digital Commons Network^™

A Computer Model For Comparison Of Flat Plate And Focusing Collectors For Solar Air Conditioning, H. B. Bucher

Retrospective Theses and Dissertations

Two types of solar collecting systems are frequently employed--flat plate collectors with spectrally selective windows which trap sunlight with the "greenhouse effect" and focusing systems with curved mirrors which concentrate the sun's rays on an absorbing surface. The flat plate collector is the simpler of the two designs, but cannot readily provide temperatures as high as the focusing collector. Both of the collectors are candidates for absorption cycle solar air conditioning systems. This role dictates higher temperature than are normally required of solar collectors, particularly the flat plate design. Focusing systems of interest here are those which are fixed in …

Characteristics Of Bicycle-Related, Motor Vehicle Accidents In Kentucky, Kenneth R. Agent, Charles V. Zegeer

Kentucky Transportation Center Research Report

The purpose of this study was to determine the characteristics associated with bicycle-related, motor vehicle accidents. Bicycle-related, motor vehicle accidents in Kentucky were analyzed.

A sample of injury-producing bicycle accidents was also analyzed. It was found that cyclists 10 to 14 years of age were involved in the largest number of motor vehicle related accidents. Males were involved in four times as many accidents as females. Most accidents occurred in urban areas, mostly on residential streets. The majority of accidents resulted from errors by the cyclists. The most common type was the right-angle accident, but the leading types varied with …

Seasonal Variations In The Skid Resistance Of Pavements In Kentucky, James L. Burchett

Kentucky Transportation Center Research Report

Frequent measurements of skid resistance were made on 20 pavements in common use in Kentucky. Tests were conducted from November 1969 through 1973. Principal analysis involved relating changes in skid resistance to day of the year and relating skid resistance to temperature at the time of test, to average antecedent temperatures, and to average rainfall.

Seasonal variations exhibited an annual, sinusoidal cycle. The changes in sand-asphalt and bituminous concrete under higher volumes of traffic were about 12 skid numbers. The changes in portland cement concrete and bituminous concrete under lower volumes of traffic were about 5 skid numbers. The lowest …

Webs For Cold Formed Steel Flexural Members Structural Behavior Of Longitudinally Reinforced Beam Webs, Wei-Wen Yu, Nguyen Phung

CCFSS Library (1939 - present)

Since 1973, a research project on webs for cold-formed steel flexural members has been conducted at the University of Missouri-Rolla under the sponsorship of American Iron and Steel Institute. This study deals with the structural behavior of beam webs subjected to bending stress, shear stress, combined bending and shear, web crippling and the effect of bending on web crippling load. In addition, it includes a study of beam webs reinforced by either transverse or longitudinal stiffeners. This report presents the research findings on longitudinally reinforced cold-formed steel beam webs. The results obtained from the study of beam webs subjected to …

Webs For Cold Formed Steel Flexural Members Structural Behavior Of Transversely Reinforced Beam Webs, Wei-Wen Yu, Nguyen Phung

CCFSS Library (1939 - present)

Since 1973, a research project on webs for cold-formed steel flexural members has been conducted at the University of Missouri-Rolla under the sponsorship of American Iron and Steel Institute. This study deals with the structural behavior of beam webs subjected to bending stress, shear stress, combined bending and shear, web crippling and the effect of bending on web crippling load. In addition, it includes a study of beam webs reinforced by either transverse or longitudinal stiffeners. This report presents the research findings on transversely reinforced cold-formed steel beam webs. The results obtained from the study of beam webs subjected to …

A Review Of Manpower Training And Future Directions In Air Pollution Control At Universities, August T. Rossano, Harold M. Cota

Civil and Environmental Engineering

No abstract provided.

Acuta Enews June 1978, Vol. 7, No. 6

ACUTA Newsletters

In This Issue

EXECUTIVE VICE PRESIDENT'S MESSAGE

PARTY LINE

BITS & PIECES

NOMINATING COMMITTEE REPORT

MORE BITS & PIECES

DATA BITS

MOUTH OF THE SOUTH

VIRGINIA VIEW

POTPOURRI

Web Buckling In Beams, John T. Dewolf, Clinton J. Gladding

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

No abstract provided.

The Dofasco Experimental Steel House (D.E.S.H. #1), Roderick W. Eastman, Andrew S. Zakrzewski

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

No abstract provided.

Stability Of Imperfect Closed Polygon Columns, Carl E. Kurt, Roy C. Johnson

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

No abstract provided.

Water Conservation Information Dissemination During The 1997 Drought Emergency, L. Douglas James, Wade H. Andrews

Reports

As drought conditions in 1976 and 1977 became increasingly severe throughout the west and affected many other parts of the country, many states began special drought information dissemination efforts. This study was organized to provide for the exchange of information among the respective states a forum that could reduce duplication among independent efforts. The project collected information. on: A) Water-user conservation practices, 1) domestic use, a) inside use, b) outside use, 2) industrial, 3) commercial, and 4) irrigation; B) Water-supplier management practices, 1) water conservation Inducements, 2) emergency supply augmentation, a) groundwater mining, b) water harvesting, c) water reuse, 8) …

Irish H & V News

Building Services Engineering

No abstract provided.

Sizing Of Liquid Manure Tank Wagons And The Economic Evaluation Of Liquid Manure Injection, J.N. Scarborough, Elbert C. Dickey, D. H. Vanderholm

Department of Agricultural and Biological Systems Engineering: Faculty Publications

Liquid manure tank wagons were evaluated on a cost basis to determine the optimum size for a given livestock operation. Also the economics of adding a liquid injector to the tank wagon was studied for profitability.

INTRODUCTION

The proper selection of a liquid manure tank wagon is a problem faced by many progressive livestock producers with liquid manure systems. Selection of a manure tank wagon is usually based on the farmer's or dealer's opinion of what size is right rather than on a logical analysis including an economic analysis of the costs involved. This paper provides guidelines for selecting the …

The Use Of Windmills As A Potential Energy Alternative, James A. Long

Graduate Research Papers

The use of wind as an energy source has been used for many centuries to do work for man. Wind energy has long been recognized as a potentially abundant source of power. In this area of the United States windmills once dotted the landscape providing a means of pumping water and for mechanical power. It also was used for generation of electrical power on farms before the advent of the rural electrification program. In recent years, however, the reliance upon fossil fuels to supply man with energy has virtually eliminated his reliance upon wind as an energy source. With the …

Cover Page, Contents And Preface -- Volume I, Wei-Wen Yu, Joseph H. Senne

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

No abstract provided.

Static And Ultimate Load Behavior Of Cold-Formed Steel Joint Residential Floor Systems, R. J. Kudder, P. W. Linehan, J. F. Wiss

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

No abstract provided.

Dynamic And Human Response Behavior Of Cold-Formed Steel Joint Residential Floor Systems, P. W. Linehan, R. J. Kudder, J. F. Wiss

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

No abstract provided.

Developments In Inexpensive Lightweight Structures, Michael J. Davies

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

No abstract provided.

Experimental Investigation Of Steel Stud Shear Wall Diaphragms, Cynthia S. Mccreless, Thomas S. Tarpy Jr.

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

This paper presents the results of an experimental full scale test program for determining design information for shear wall diaphragms constructed of steel studs and gypsum wallboard with different aspect ratios. Wall construction used is representative of the type of construction commonly used for interior wall partitions. Testing is performed in accordance with- ASTM E 564 - 76.

Contents And Preface -- Volume Ii, Wei-Wen Yu, Joseph H. Senne

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

No abstract provided.

Edge Stiffeners For Cold-Formed Steel Members, Teoman Peköz,, George Winter, T. P. Desmond

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

No abstract provided.

European Research On Pallet, Drive-In And Drive-Through Racks, Jan W. B. Stark, Kees Tilburgs

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

No abstract provided.

Webs For Cold Formed Steel Flexural Members Structural Behavior Of Beam Webs Subjected To Web Crippling And A Combination Of Web Crippling And Bending, Wei-Wen Yu, Nipon Hetrakul

CCFSS Library (1939 - present)

Since 1973, a research project on webs for cold-formed steel flexural members has been conducted at the University of Missouri-Rolla under the sponsorship of American Iron and Steel Institute. This study deals with the structural behavior of beam webs subjected to bending stress, shear stress, combined bending and shear, web crippling and the effect of bending on web crippling load. In addition, it includes a study of beam webs reinforced by either transverse or longitudinal stiffeners. This report presents the research findings on web crippling and combined web crippling and bending for cold-formed steel beams having unreinforced webs. The results …

Webs For Cold-Formed Steel Flexural Members Structural Behavior Of Beam Webs Subjected To Bending Stress, Wei-Wen Yu, Roger A. Laboube

CCFSS Library (1939 - present)

Since 1973, a research project on webs for cold-formed steel flexural members has been conducted at the University of Missouri-Rolla under the sponsorship of American Iron and Steel Institute. This study deals with the structural behavior of beam webs subjected to bending stress, shear stress, combined bending and shear, web crippling and the effect of bending on web crippling load. In addition, it includes a study of beam webs reinforced by either transverse or longitudinal stiffeners. This report presents the research findings on unreinforced beam webs subjected to bending stress. The results for the study of beam webs subjected to …

Webs For Cold Formed Steel Flexural Members Structural Behavior Of Beam Webs Subjected Primarily To Shear Stress, Wei-Wen Yu, Roger A. Laboube

CCFSS Library (1939 - present)

Since 1973, a research project on webs for cold-formed steel flexural members has been conducted at the University of Missouri-Rolla under the sponsorship of American Iron and Steel Institute. This study deals with the structural behavior of beam webs subjected to bending stress, shear stress, combined bending and shear, web crippling and the effect of bending on web crippling load. In addition, it includes a study of beam webs reinforced by either transverse or longitudinal stiffeners. This report presents the research findings on the unreinforced beam webs subjected primarily to shear stress. The results obtained from the study of beam …

Webs For Cold Formed Steel Flexural Members Structural Behavior Of Beam Webs Subjected To A Combination Of Bending And Shear, Roger A. Laboube, Wei-Wen Yu

CCFSS Library (1939 - present)

Since 1973, a research project on webs for cold-formed steel flexural members has been conducted at the University of Missouri-Rolla under the sponsorship of American Iron and Steel Institute. This study deals with the structural behavior of beam webs subjected to bending stress, shear stress, combined bending and shear, web crippling and the effect of bending on web crippling load. In addition, it includes a study of beam webs reinforced by either transverse or longitudinal stiffeners. This report presents the research findings on the unreinforced beam webs subjected to a combination of bending and shear. The results obtained from the …

Dynamics Of Submerged Cylindrical Shells With Eccentric Stiffening, Kerry Kier-Ten Chu

Dissertations

A theoretical analysis is presented for treating the free vibrations of submerged, ring stiffened cylindrical shells with simply supported ends. The effects of the eccentric stiffeners are averaged over the thin-walled isotropic cylindrical shell. The energy method is utilized and the frequency equation is derived by Hamilton's Principle. All three degrees of freedom are considered. Numerical results are presented for frequencies and mode separation for several cases of interest. Comparisons with previous theoretical and experimental results indicate good agreement. The cylindrical wave approximation and the plane wave approximation for the field equation were investigated. Their applicability was evaluated and the …

Paper Recycling : Recovery Of Secondary Fibers By Selective Wettability, Gary Keith Welshans

Dissertations

A separation process has been developed which recovers similar paper grades from a mixed stock by selective wettability. This process capitalizes on the various paper additives which are intended to resist water wetting and result in paper flotation. While water can be used to achieve many desirable paper separations, the detention times required are excessive, and therefore, limit any industrial application. Surface-active agents, in low concentrations, can be used advantageously by reducing the detention times for all paper while the structure of the surfactant can be used to selectively recover similar papers over a controlled time period. Detention times have …

Management Of Manpower Planning In A Job Shop, John E. Yadlon

Theses

The object of any system of manpower planning is to provide a means to optimize manpower utilization. Within this base there is the normal requirement to provide effective utilization of equipment, materials and manpower. In a production type of environment, studies, statistics, research and supervisory manpower are readily available to best optimize manpower planning. In a job shop environment only fragments of these elements are available. Also, the available supervisory time for studies and implementation of research into statistics is usually very small. The net result is that manpower management in a job shop is all too often guessed at. …

The Introduction Of A Computerized Production Control System In A Small Manufacturing Company, Harry Leroy Zimmerly

Theses

The purpose of this thesis is to acquaint the reader with the intricacies of introducing a computerized production control system into a small manufacturing company. To do this a hypothetical company was described as it existed with a manual production control system. The information flow of the manual system was described in detail.

Potential computerized production control systems with a shop data collection system were then investigated. A computerized system would expedite information flow, allow rapid assembly tracking, take accurate data and reveal the actual cost (including labor cost) of an assembly. This was done first by examining technical publications. …