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Articles 29371 - 29400 of 33693

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Alternating Current Method Of Measuring The Electrical Conductivity Of Dielectric Liquids, Henry E. Fischer, Ralph S. Carson Dec 1967

Alternating Current Method Of Measuring The Electrical Conductivity Of Dielectric Liquids, Henry E. Fischer, Ralph S. Carson

Electrical and Computer Engineering Faculty Research & Creative Works

No abstract provided.


Strong-Coupled Piezoelectric Polaron, Wayne E. Tefft Dec 1967

Strong-Coupled Piezoelectric Polaron, Wayne E. Tefft

Physics Faculty Research & Creative Works

A semiclassical, variational calculation for the strong-coupled piezoelectric polaron gives the following results for the ground-state energy and polaron radius, respectively: U0=-0.47(m*/m) (κ2/ε)2eV, and R=3.5(ε/κ2) (m/m*)â ã where m* is the band effective mass, κ is the electromechanical coupling constant, and ε is the strain-free dielectric constant. The theory is expected to be valid when |U0| is larger than thermal energies and R is considerably larger than unit-cell dimensions. A calculation of the polaron effective mass, having a more limited region of validity, gives mp~m*[1+2|U0|/m*vs2], where vs is the velocity of sound. …


The Missouri Miner, November 17, 1967 Nov 1967

The Missouri Miner, November 17, 1967

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, November 10, 1967 Nov 1967

The Missouri Miner, November 10, 1967

The Missouri Miner Newspaper

No abstract provided.


Survival Probability In Dissociative Attachment, Joseph C.Y. Chen, Jerry Peacher Nov 1967

Survival Probability In Dissociative Attachment, Joseph C.Y. Chen, Jerry Peacher

Physics Faculty Research & Creative Works

The survival probability in dissociative attachment is investigated with special attention to the (e, H2 ) system. It is shown that the simple expression for the dissociative-attachment cross section, as given by the product of a capture cross section and a survival probability, is equivalent to the s -wave approximation for the g → g dissociative attachment. This expression, however, does not constitute an approximation for the g → u dissociative attachment, since the parity of the initial rotational states of H2 is always opposite to that of the relative angular momentum states of H and H- …


The Missouri Miner, October 27, 1967 Oct 1967

The Missouri Miner, October 27, 1967

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, October 20, 1967 Oct 1967

The Missouri Miner, October 20, 1967

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, October 13, 1967 Oct 1967

The Missouri Miner, October 13, 1967

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, October 06, 1967 Oct 1967

The Missouri Miner, October 06, 1967

The Missouri Miner Newspaper

No abstract provided.


Missouri S&T Magazine, October 1967, Miner Alumni Association Oct 1967

Missouri S&T Magazine, October 1967, Miner Alumni Association

Missouri S&T Magazine

No abstract provided.


The Missouri Miner, September 29, 1967 Sep 1967

The Missouri Miner, September 29, 1967

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, September 22, 1967 Sep 1967

The Missouri Miner, September 22, 1967

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, September 15, 1967 Sep 1967

The Missouri Miner, September 15, 1967

The Missouri Miner Newspaper

No abstract provided.


Existence Of Two Types Of Drag Reduction In Pipe Flow Of Dilute Polymer Solutions, Harry C. Hershey, Jacques L. Zakin Aug 1967

Existence Of Two Types Of Drag Reduction In Pipe Flow Of Dilute Polymer Solutions, Harry C. Hershey, Jacques L. Zakin

Chemical and Biochemical Engineering Faculty Research & Creative Works

Drag reduction in the pipe flow of polymer solutions is shown to be of two types which apparently occur by two separate mechanisms. In turbulent flow, drag reduction is probably caused by viscoelastic effects. The critical solvent Reynolds number at the onset of drag reduction is proportional to about the first power of the diameter. Thus, the critical velocity is independent of tube diameter. Polymers dissolved in good solvents show more drag reduction than in poor solvents. The other type of drag reduction occurs when the laminar region is extended to high Reynolds numbers. It is followed by a transition …


Numerical Differentiation Of Equally Spaced And Not Equally Spaced Experimental Data, Harry C. Hershey, Jacques L. Zakin, Robert Simha Aug 1967

Numerical Differentiation Of Equally Spaced And Not Equally Spaced Experimental Data, Harry C. Hershey, Jacques L. Zakin, Robert Simha

Chemical and Biochemical Engineering Faculty Research & Creative Works

Procedures are given for smoothing and differentiating experimental data with both equal and nonequal spacing in the independent variable. Selection of the number of points to be included in the "movable strip" technique and of the degree of the polynomial is discussed. Equations are given to estimate the error by calculating a confidence interval on each slope. A technique for handling certain types of nonrandom errors is presented. © 1967, American Chemical Society. All rights reserved.


Missouri S&T Magazine, August 1967, Miner Alumni Association Aug 1967

Missouri S&T Magazine, August 1967, Miner Alumni Association

Missouri S&T Magazine

No abstract provided.


Strength And Behavior Of Light-Gage Steel Shear Diaphragms, Larry D. Luttrell Jul 1967

Strength And Behavior Of Light-Gage Steel Shear Diaphragms, Larry D. Luttrell

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

Light-gage steel roof, wall, and floor systems may be used to transfer in-plane shear forces from one part of a framed structure to another, leading to reduced loads in parts of the structure. Such behavior is particularly noticeable in buildings that have rigid shear walls and are subjected to lateral loads such as those arising from wind or earthquakes. The transfer of shear force through such diaphragms is dependent on the shear strength and is particularly sensitive to shear stiffness. The stiffness of the diaphragm must be considered in relationship to the stiffness of the structural frame. Diaphragm response to …


Missouri S&T Magazine, June 1967, Miner Alumni Association Jun 1967

Missouri S&T Magazine, June 1967, Miner Alumni Association

Missouri S&T Magazine

No abstract provided.


Trace Element Content Of Magnetites And Hematites, Southeast Missouri Iron Metallogenic Province, Usa, Geza Kisvarsany, Paul Dean Proctor Jun 1967

Trace Element Content Of Magnetites And Hematites, Southeast Missouri Iron Metallogenic Province, Usa, Geza Kisvarsany, Paul Dean Proctor

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

Six major and numerous smaller Precambrian iron deposits of mag-matic origin occur in the volcanic rocks of the Southeast Missouri Iron Metallogenic Province in an area approximately 70 miles long and 40 miles wide. The Precambrian igneous complex is composed of mainly high silica, with some intermediate, volcanic rocks intruded by granitic rocks and some diorites and gabbros. Biotite schists occur locally. Some of the volcanic and intrusive rocks are characterized by an unusual abundance of alkali metals. Local enrichments in fluorite, calcite, and iron oxides are present. The shapes of the iron deposits range from massive tabular to irregular. …


Rapid Calculation Of Electron Scattering Factors, Jerry Peacher, John G. Wills Jun 1967

Rapid Calculation Of Electron Scattering Factors, Jerry Peacher, John G. Wills

Physics Faculty Research & Creative Works

The phase amplitude method is used to reduce the radial Schrödinger equation to two separate differential equations, one for the phase and one for the amplitude. These functions are both smooth as opposed to the rapidly oscillating solution of the radial Schrödinger equation for electron energies in the kilovolt range. The partial-wave phase shifts were obtained rapidly by integrating the differential equations for the phase and amplitude numerically. Hartree-Fock and Thomas-Fermi-Dirac fields were used in the calculation. Results for argon and uranium are given in order to compare with previous results. It was found that the WKBJ approximation to the …


The Missouri Miner, May 19, 1967 May 1967

The Missouri Miner, May 19, 1967

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, May 12, 1967 May 1967

The Missouri Miner, May 12, 1967

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, May 05, 1967 May 1967

The Missouri Miner, May 05, 1967

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, April 28, 1967 Apr 1967

The Missouri Miner, April 28, 1967

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, April 21, 1967 Apr 1967

The Missouri Miner, April 21, 1967

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, April 14, 1967 Apr 1967

The Missouri Miner, April 14, 1967

The Missouri Miner Newspaper

No abstract provided.


The Missouri Miner, April 07, 1967 Apr 1967

The Missouri Miner, April 07, 1967

The Missouri Miner Newspaper

No abstract provided.


Missouri S&T Magazine, April 1967, Miner Alumni Association Apr 1967

Missouri S&T Magazine, April 1967, Miner Alumni Association

Missouri S&T Magazine

No abstract provided.


Vaporization Through Porous Membranes, Marshall E. Findley Apr 1967

Vaporization Through Porous Membranes, Marshall E. Findley

Chemical and Biochemical Engineering Faculty Research & Creative Works

Mixtures may be evaporated from one interface of a Non wettable porous membrane with diffusion through the vapor-filled pores and condensation at the other interface of the membrane, by a sufficiently higher temperature on the mixture side maintained by a heat supply to the mixture and heat removal from the condensate equal to the latent heat transferred with vapor plus heat transferred by conduction. This permits essentially infinite-stage flash evaporation at constant liquid pressures, either with diffusion through Non condensable gases in the pores, or with vapor flow at a lower pressure than liquid pressures, but with liquids excluded from …


The Missouri Miner, March 31, 1967 Mar 1967

The Missouri Miner, March 31, 1967

The Missouri Miner Newspaper

No abstract provided.