Engineering Commons^™

High-Rise Rack-Supported Building A Unique Application Of Cold-Formed Steel Members, Ching Fung

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.

Effects Of Added Reinforcement In Steel-Deck Slabs, Max L. Porter

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.

Strength Of Buckled Rectangular Plates, Yei L. Tien, Shien T. Wang

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.

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.

Tests On Puddle Weld Connections, William Mcguire, J. W. Struble, Teoman Peköz

CCFSS Library (1939 - present)

PREFACE This non-interpretive report contains the results of 90 tests on circular and oblong puddle weld connections. The connections involved test specimens constructed of flat steel plates and thin connecting sheets of varying thicknesses (10 to 28 gage) with the welds to be studied forning the bond between them. Testing consisted of tensile loading to ultimate failure. This work was carried out under contract with the Engineering Division of the American Iron and Steel Institute.

The Effect Of Antimony, Chloride Ion, And Glue On Copper Electrorefining, Thomas J. O'Keefe, L. R. Hurst

Materials Science and Engineering Faculty Research & Creative Works

A study has been made to determine the effect of antimony, chloride ion, and glue on copper electrorefining. All deposits were made at a temperature of 65° C on a titanium cathode. Current densities of 398 A m-2 and 133 A m-2 were used. The deposits were analyzed by scanning electron microscopy (SEM) and X-ray diffraction (XRD) to determine morphology and crystal orientation. Atomic absorption (AA) and Auger spectroscopy (AES) were used to study the chemical composition of the deposits and a simple bend test was used to determine structural integrity. It was found that when the antimony concentration in …

The National Solar Heating And Cooling Information Center, Jeremy A. Lifsey, Sanford Zane Meschkow

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

The Center is an information service funded by the U.S. Department of Housing and Urban Development and the U.S. Department of Energy as part of a program to foster the use of solar energy in domestic hot water systems and the heating and cooling of buildings. The Center answers questions by mail and over toll-free hot lines, operates a mobile exhibit van and several exhibits that appear at conferences and trade shows, and distributes HUD and DOE publications on solar energy. Users can request lists of addresses of solar design and construction professionals, manufacturers, distributors, banks that have given solar …

Energy From Swine Manure, J. R. Fischer, E. L. Iannotti, D. M. Sievers

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

This paper discusses results of anaerobically digesting swine manure. Facts and figures are given on utilization of the energy from the anaerobic digester. Design parameters and some of the biochemical changes that occur during digestion are also given.

5th Annual Umr-Dnr Conference On Energy -- Entire Proceedings, University Of Missouri--Rolla

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

This volume is a collection of refereed papers presented at the Fifth Annual UMR-DNR Conference on Energy held at the University of Missouri--Rolla on the dates of October 10 - 12, 1978.

Guided by the President's goal of energy independence by 1980, the UMR-DNR Conference on Energy organized in 1974 with the purpose of providing social scientists, scientists and engineers a means for rapid communication of their most recent research results in the field of energy and to offer solutions to the energy related problems of local government, business, industry and the general public. Since that time, there has been …

Strength Of Arc-Spot Weld In Sheet Steel Construction, Ching Fung

American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

The weld used by the steel deck erectors to anchor steel decking to structural steel framing is commonly known as "Puddle Weld". It is formed by arc-welding with stick electrodes to "melt" through the deck, resulting in puddle of molten steel durinlj the welding operation. Hence, the weld is commonly referred to in the trade as "Puddle Weld". Since the inception of this research projE:ct, this type of weld has been given a new technical name -the "Arc-Spot Feld" to reflect the actual welding process and the formation of the weld.

Steel Deck Institute Design Manual For Form Decks And Roof Decks, Steel Deck Institute

Steel Deck Institute (SDI) Specifications and Manuals (1939 - present)

No abstract provided.

Phase 1 Inspection Report: National Dam Safety Program. Osage - Gasconade Basin. Little Prairie Dam, Phelps County, Missouri, Anderson Engineering, Inc., Springfield, Missouri, Hanson Engineers, Inc., Springfield, Illinois

Missouri Dam Safety Inspection Reports

This report presents the results of field inspection and evaluation of the Little Prairie Dam. It was prepared under the National Program of Inspection of Non-Federal Dams.

Testing Of Solar Collectors By A Standard Method, Harry J. Sauer Jr., Bassem F. Armaly

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

A description of the recently adopted standard for testing solar collectors "ASHRAE STANDARD 93-77, METHOD OF TESTING SOLAR COLLECTORS BASED ON THERMAL PERFORMANCE" is presented. Results from the standard could be used to simulate the transient performance of an installed solar system.

Web Crippling Strength And A Combination Of Bending And Web Crippling Of Cold-Formed Steel Beams, Nipon Hetrakul

Doctoral Dissertations

"The web crippling strength of cold-formed steel beams was investigated experimentally. In this investigation, due consideration was given to the possible influence of bending moment and shear force on the web-crippling loads.

For the subject of web crippling strength, the study involved the testing of 140 built-up beams having single unreinforced webs and 152 I-beams having double webs. In addition, 66 beam tests were conducted for the case of combined bending moment, shear and web crippling.

The experimental results obtained from the beam tests conducted at the University of Missouri-Rolla and the early tests performed previously at Cornell University were …

Thrust-Impact Rock-Splitter, George Bromley Clark, T. F. Lehnhoff

Mining Engineering Faculty Research & Creative Works

A rock splitting tool having elongate laterally expanding metal pressure bars or feathers and an axial sliding wedge or spreader for radially separating the feathers, the wedge being driven by the combined and superimposed forces of a hydraulic thrust servomotor and an impact hammer. The driving paths for transmitting forces to the wedge are coaxial and partially in series and partially in parallel.

Method And Apparatus For Water Jet Drilling Of Rock, David A. Summers, Marian Mazurkiewicz, Dwight J. Bushnell, James Blaine

Mining Engineering Faculty Research & Creative Works

Rock drilling method and apparatus utilizing high pressure water jets for drilling holes of relatively small diameter at speeds significantly greater than that attainable with existing drilling tools. Greatly increased drilling rates are attained due to jet nozzle geometry and speed of rotation. The jet nozzle design has two orifices, one pointing axially ahead in the direction of travel and the second inclined at an angle of approximately 30° from the axis. The two orifices have diameters in the ratio of approximately 1:2. Liquid jet velocities in excess of 1,000 ft/sec are used, and the nozzle is rotated at speeds …

Variable Elimination For Optimization With Difficult Explicit Inequality Constraints, R. C. Kelahan, J. L. Gaddy

Chemical and Biochemical Engineering Faculty Research & Creative Works

No abstract provided.

Nucleate Boiling Of N-Pentane, N-Hexane And Several Mixtures Of The Two From Various Tube Arrays, K. W. Wall, Efton Park

Chemical and Biochemical Engineering Faculty Research & Creative Works

No abstract provided.

Vapor Pressures For The System Isobutane-Isobutylene-N-Butane, José A. Martünez-Ortiz, David B. Manley

Chemical and Biochemical Engineering Faculty Research & Creative Works

New experimental vapor pressures for the ternary system composed of Isobutane-isobutylene-n-butane from 40 to 160 °F and 20 to 160 psia are presented. The data have an estimated average accuracy of 0.04%. The pure component data are compared with existing data from the literature. © 1978, American Chemical Society. All rights reserved.

The Effects Of Interstage Backmixing On The Design Of A Multicomponent Distillation Column, Gary D. Loud, Raymond C. Waggoner

Chemical and Biochemical Engineering Faculty Research & Creative Works

Interstage back mixing is encountered as entrainment in many distillation columns. Bidirectional back mixing is common in liquid-liquid extraction. These effects, which reduce the effectiveness of a separation process, may interfere with its operation even to the extent of shutdown. The design engineer and process operator need to recognize the effects of back mixing and must quantify them to take effective countermeasures. A procedure is developed which describes the effects of interstage bidirectional back mixing in multistage separations. It is implemented on an existing simulation for multicomponent distillation and is used to show the effect of back mixing on product …

Sld Potamology Study (S-9), Jerome A. Westphal, Samuel P. Clemence

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Foreword

In this report, the authors discuss factors which relate to flow characteristics of the Middle Mississippi River and its major tributaries. The variety of ways in which man and nature interact to affect the hydrologic regime of the study area are almost infinite. Furthermore, the intensity and direction of man's activity is non-uniform with respect to both time and space. Therefore, on the scale of the study area, the authors assert that 1) it is difficult to verify associations between specific human actions and river responses and 2) at this time, it is impossible to do so in a …

Two-Step Photoionization Of Potassium Atoms, Kaare J. Nygaard, Robert J. Corbin, James A. Jones

Physics Faculty Research & Creative Works

The cross section for photoionization of potassium atoms in the 4P2 states has been measured in a triple-crossed-beam experiment. © 1978 The American Physical Society.

Conference Tutorials-An Opportunity For Continuing Education, John H. Park, William H. Tranter

Electrical and Computer Engineering Faculty Research & Creative Works

The Educational Services Committee of the IEEE Communications Society has sponsored eleven tutorial short courses at its major conferences over the past six years. The experience gained in developing and presenting these tutorials is shared with others so that they may be in a better position to sponsor similar continuing education activities in the future. The conference tutorial is one example of a continuing education activity that can be sponsored by an IEEE Group or Society as a service to its members. Copyright © 1978 by The Institute of Electrical and Electronics Engineers, Inc.

Disk And Strip Forging With Side Surface Foldower: Part 2: Evaluation Of The Upper-Bound Solutions, Ronald A. Kohser, B. Avitzur

Materials Science and Engineering Faculty Research & Creative Works

The upper-bound solutions developed in Part 1 are evaluated with regard to their ability to produce a lower value for required power (load, pressure, or work). Comparisons made with existing solutions such as the triangular field solution and one-zone bulge solution show that for strip, each solution has a domain of geometry and friction in which it is superior. The new solution produces a lower upper-bound for conditions of high interface, friction and relatively thin specimen, the area where fold over is the observed mode of flow. For solid cylindrical disks, the solution fails to improve upon existing analyses, but …

Effect Of Collagen And Chloride Additions On Electrolytic Copper Deposits, William P. Lorenz, Thomas J. O'Keefe, Carlo B. Sonnino

Materials Science and Engineering Faculty Research & Creative Works

The effects of collagen concentration and molecular weight on the morphology and crystal orientation of electrolytic copper deposits have been determined and compared. The effect of chlorides in the presence of collagen on the above properties has also been investigated. Three different molecular weight collagens were studied and the consumption rate of each was determined by chemical analysis of the electrolyte before and after electrodeposition. Two-hour deposits were made in an electrolyte containing the subject collagens in concentrations ranging from 1.2 to 38.4 mg 1-1. Scanning electron and light microscopes and X-ray diffraction were used to evaluate the electrodeposits. © …

Data Compression In Microprocessor-Based Data Acquisition Systems, Paul D. Stigall, Philip Panagos

Electrical and Computer Engineering Faculty Research & Creative Works

A First-Order Predictor Routine and an Encoding Routine Were Implemented on an Intel-8080-Based Microprocessor System to Determine their Ability to Compress Seismic Data. the Predictor Routine Obtained a Maximum Compression Ratio of 2.33. It Appears that Higher Order Predictors Offer No Significant Advantage over the First-Order Predictor in Compressing Seismic Data. the Encoder Routine Obtained a Larger Compression Ratio of 3.94. the Accuracy of Reconstructed Seismic Traces is Bounded by a Maximum Average Error Per Point. for the Predictor, the Maximum Average Error Per Point is Shown to Be Equal to the Specified User Tolerance. for the Encoder, It is …

The Development Of An Interactive Industry/Academic Power Engineering Education Program At The University Of Missouri-Rolla, Earl F. Richards, Max Darwin Anderson, Jack F. Morris, J. Derald Morgan, George Mcpherson, David R. Cunningham, Robert H. Nau, Edward Duke Tweed

Electrical and Computer Engineering Faculty Research & Creative Works

This paper describes the development of a unique andinno-vative program in power engineering education enhanced through an Industry/Academic interrelationship. This program is devoted to both the teaching and the practice of power engineering. The development of the Industry/Academic relationship and its value as a model for power engineering education are related. A summary of present and proposed future activities concludes the report. Copyright © 1978 by The Institute of Electrical and Electronics Engineers, Inc.