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Articles 18301 - 18330 of 21795

Full-Text Articles in Engineering

Mie Scattering Computations For Moderately Large Spherical Particles, Dwight C. Look Jan 1976

Mie Scattering Computations For Moderately Large Spherical Particles, Dwight C. Look

Mechanical and Aerospace Engineering Faculty Research & Creative Works

No abstract provided.


The Effects Of Main-Flow Radial Velocity On The Stability Of Developing Laminar Pipe Flow, F. C.T. Shen, T. S. Chen, L. M. Huang Jan 1976

The Effects Of Main-Flow Radial Velocity On The Stability Of Developing Laminar Pipe Flow, F. C.T. Shen, T. S. Chen, L. M. Huang

Mechanical and Aerospace Engineering Faculty Research & Creative Works

In studying the stability due to axisymmetric disturbances of the developing flow of an incompressible fluid in the entrance region of a circular tube, a generalized version of the Orr-Sommerfeld equation was derived which takes account of the radial velocity component in the main flow. The new terms in the generalized Orr-Sommerfeld equation are inversely proportional to the Reynolds number. The resulting eigenvalue problem consisting of the disturbance equation and the boundary conditions was solved by a direct numerical integration scheme along with an iteration procedure. Neutral stability curves and critical Reynolds numbers at various axial locations are presented. A …


Installation Induced Stresses For Grouted Roof Bolts, R. N. Nitzsche, Charles J. Haas Jan 1976

Installation Induced Stresses For Grouted Roof Bolts, R. N. Nitzsche, Charles J. Haas

Mechanical and Aerospace Engineering Faculty Research & Creative Works

The judicious use of roof bolts in stabilizing underground openings necessitates the ability to determine the state of stress in and around such bolts. A method of modeling a system of roof bolts is presented. This method is then applied in the determination of the state of stress due to bolt tightening. Two specific roof bolt configurations are considered: a fully grouted post-tensioned bolt and a post-tensioned bolt with grouted-end anchorage. The analysis showed that the grout annulus transferred nearly all of the bolt load 3nto the rock within a distance of 12 hole diameters from the point of bolt …


Optimal Process Overdesign With A Flowsheet Simulator, Frank Joseph Doering Jan 1976

Optimal Process Overdesign With A Flowsheet Simulator, Frank Joseph Doering

Doctoral Dissertations

"Overdesign is applied to chemical processes to include additional equipment for improved process reliability or to account for deviations from average conditions. An efficient method to optimize the overdesign of a complex chemical process is developed for use on a flowsheet simulation program. The effectiveness of the method is demonstrated by simulating the sulfuric acid process with metallurgical feed gas on the flowsheet program PROPS. The process is optimized for reliable and variable performance by the adaptive random search algorithm"-- Abstract, p. xi


Electrical Degradation In High Purity Barium Titanate, Jeffrey Duncan Keck Jan 1976

Electrical Degradation In High Purity Barium Titanate, Jeffrey Duncan Keck

Doctoral Dissertations

"The stability of BaTiO3-type insulators to DC fields has long been recognized as one of the important factors in determining the quality of a capacitor which uses such a material as its dielectric. The slow increase of the electrical conductivity of an insulator which is stressed by DC fields at levels below the breakdown strength is normally termed degradation. Since degradation is a very common malady to the ceramic capacitor manufacturers, many studies have been conducted over the past two decades in efforts to learn how to remedy the problem.

The results of previous studies have shown that …


The New Lead Belt In The Forested Ozarks Of Missouri, Bobby G. Wixson, J. Charles Jennett Dec 1975

The New Lead Belt In The Forested Ozarks Of Missouri, Bobby G. Wixson, J. Charles Jennett

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

No abstract provided.


Anion Grain-Boundary Diffusion In Soidum Chloride, K. S. Sabharwal, J. Mimkes, Manfred Wuttig Dec 1975

Anion Grain-Boundary Diffusion In Soidum Chloride, K. S. Sabharwal, J. Mimkes, Manfred Wuttig

Materials Science and Engineering Faculty Research & Creative Works

The grain-boundary diffusion of 131I in Harshaw pure and Ca-doped NaCl was investigated in the temperature range between 430 and 560°C. The Arrhenius plot of the grain-boundary diffusivity parameter Dδ displays a marked dip at around 510°C. It is proposed that this dip is due to a phase transformation occurring at the grain boundary, possibly calcium segregation.


Proximity Of Contraflexure To Plate Buckling Load, H. H. Spencer, A. C. Walker Nov 1975

Proximity Of Contraflexure To Plate Buckling Load, H. H. Spencer, A. C. Walker

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

No abstract provided.


Load Tests On Steel-Stud Walls, J. F. Mcdermott Nov 1975

Load Tests On Steel-Stud Walls, J. F. Mcdermott

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

No abstract provided.


Failure Of Thin-Walled Members Under Patch Loading, M. Elgaaly Nov 1975

Failure Of Thin-Walled Members Under Patch Loading, M. Elgaaly

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

No abstract provided.


Stressed Skin Construction In The Uk, E. R. Bryan, J. Michael Davies Nov 1975

Stressed Skin Construction In The Uk, E. R. Bryan, J. Michael Davies

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

No abstract provided.


The Performance Of Cold-Formed Steel Products In Housing, Larry W. Ife Nov 1975

The Performance Of Cold-Formed Steel Products In Housing, Larry W. Ife

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

No abstract provided.


Study Of Cold-Formed Steel Beam Webs Subjected To Bending Stress, Roger A. Laboube, Wei-Wen Yu Nov 1975

Study Of Cold-Formed Steel Beam Webs Subjected To Bending Stress, Roger A. Laboube, Wei-Wen Yu

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

No abstract provided.


Application Of Cold-Formed Steel In Foundations, Andrew S. Zakrzewski Nov 1975

Application Of Cold-Formed Steel In Foundations, Andrew S. Zakrzewski

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

No abstract provided.


Reliability Based Design Criteria For Temporary Cold-Formed Steel Buildings, Lawrence I. Knab, Niels C. Lind Nov 1975

Reliability Based Design Criteria For Temporary Cold-Formed Steel Buildings, Lawrence I. Knab, Niels C. Lind

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

No abstract provided.


Analysis Of Cylindrical Grain Storages Made Of Cold-Formed Steel, George Abdel-Sayed Nov 1975

Analysis Of Cylindrical Grain Storages Made Of Cold-Formed Steel, George Abdel-Sayed

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

No abstract provided.


Economic Study Of The Connection Safety Factor, Niels C. Lind, Lawrence I. Knab, W. Brent Hall Nov 1975

Economic Study Of The Connection Safety Factor, Niels C. Lind, Lawrence I. Knab, W. Brent Hall

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

No abstract provided.


Local Buckling In Channel Columns, John T. Dewolf Nov 1975

Local Buckling In Channel Columns, John T. Dewolf

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

No abstract provided.


The Local Instability Of Thin-Walled Sections Under Combined Compression And Bending, J. Rhodes, James M. Harvey Nov 1975

The Local Instability Of Thin-Walled Sections Under Combined Compression And Bending, J. Rhodes, James M. Harvey

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

No abstract provided.


Cold-Forming Residual Stresses Effect On Buckling, Lars Ingvarsson Nov 1975

Cold-Forming Residual Stresses Effect On Buckling, Lars Ingvarsson

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

No abstract provided.


Structural Behavior Of Tubular Sections, Donald R. Sherman Nov 1975

Structural Behavior Of Tubular Sections, Donald R. Sherman

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

No abstract provided.


Buckling Of Plates And Beam Sections Under Stress Gradient, Shien T. Wang, Yei L. Tien Nov 1975

Buckling Of Plates And Beam Sections Under Stress Gradient, Shien T. Wang, Yei L. Tien

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

No abstract provided.


Nonlinear Behavior Of Continuous Cold-Formed Beams, Ken P. Chong, David M. Mosier Nov 1975

Nonlinear Behavior Of Continuous Cold-Formed Beams, Ken P. Chong, David M. Mosier

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

No abstract provided.


Postbuckling Behaviour Of A Webplate Under Partial Edge Loading, Debal K. Bagchi, K. C. Rockey Nov 1975

Postbuckling Behaviour Of A Webplate Under Partial Edge Loading, Debal K. Bagchi, K. C. Rockey

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

No abstract provided.


Experiments On Trapezoidal Steel Sheets In Bending, Allan Bergfelt, Bo Edlund, Hans Larsson Nov 1975

Experiments On Trapezoidal Steel Sheets In Bending, Allan Bergfelt, Bo Edlund, Hans Larsson

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

No abstract provided.


Interaction Of Concentrated Load And Bending, George D. Ratliff Jr. Nov 1975

Interaction Of Concentrated Load And Bending, George D. Ratliff Jr.

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

No abstract provided.


Sheet Metal Panels For Use In Construction, Rolf Baehre Nov 1975

Sheet Metal Panels For Use In Construction, Rolf Baehre

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

No abstract provided.


Blast-Resistant Design Of Cold-Formed Steel Panels, Albert R. Ammar, George S. Tseng, John J. Healey Nov 1975

Blast-Resistant Design Of Cold-Formed Steel Panels, Albert R. Ammar, George S. Tseng, John J. Healey

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

No abstract provided.


Calculation Of Sheet Steel Diaphragms In The Uk, E. R. Bryan Nov 1975

Calculation Of Sheet Steel Diaphragms In The Uk, E. R. Bryan

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

No abstract provided.


The Shear Flexibility Of Corrugated Steel Sheeting, R. M. Lawson, J. Michael Davies Nov 1975

The Shear Flexibility Of Corrugated Steel Sheeting, R. M. Lawson, J. Michael Davies

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

No abstract provided.