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The Missouri Miner, September 09, 1976

The Missouri Miner Newspaper

No abstract provided.

Non-Linear Finite Element Analysis Of Light Gage Steel Shear Diaphragms, Erdal Atrek, Arthur H. Nilson

CCFSS Library (1939 - present)

SUMMARY Shear diaphragm action of properly designed light gage steel panels used for floors, roofs, and walls in steel buildings increase the stiffness and strength of such buildings. Considerable savings in weight and cost can be realized if full account of this action is taken in design. To make good use of the diaphragm action, detailed knowledge on diaphragm response to loading is essential. An efficient computer program has been prepared to analyze light gage steel shear diaphragm behavior in the linear and nonlinear ranges of response, up to collapse. The program uses figinite element concepts for analysis, and has …

Missouri S&T Magazine, August 1976, Miner Alumni Association

Missouri S&T Magazine

No abstract provided.

Cross Sections For Excitation Of Atomic Hydrogen To The N=2, 3, And 4 States By 15-200-Kev Protons, John T. Park, John E. Aldag, Jacob M. George, Jerry Peacher

Physics Faculty Research & Creative Works

Cross sections for the processes H⁺+H(1 s)H⁺+H*(n = 2, 3, 4) have been extracted from the energy-loss spectra of 15- to 200-keV protons by using a spectrum-fitting technique. Absolute cross sections have been obtained by normalization of the spectra to the theoretical cross section through the use of the Born approximation at 200 keV. The cross-section curves are very similar in shape with maxima at 60 keV. The results have been compared with available theoretical calculations. The n = 2 and n = 3 cross-section measurements are in very good agreement in curve shape with Glauber-approximation …

Comparison Of Experimental And Theoretical Electron Ejection Cross Sections In Helium By Proton Impact From 5 To 100 Kev, M. Eugene Rudd, Don H. Madison

Physics Faculty Research & Creative Works

Absolute values of doubly differential cross sections are obtained for electron production in helium by 5- to 100-keV proton impact. The measured values along with earlier data at higher energies are compared with theoretical plane-wave Born-approximation functions obtained from a Hartree-Fock potential. Not only is good agreement obtained at high impact energies (above 300 keV), but fairly good agreement is found at low energies (below about 20 keV). For electrons ejected in the backward hemisphere, unexpectedly poor agreement is noted at intermediate energies where the measured cross sections dip to 50% of the calculated values in some cases. Singly differential …

Effect Of Angular Momentum On The Relaxation Time In A Multicomponent Gas Mixture, Louis Biolsi Jr.

Chemistry Faculty Research & Creative Works

The effects of molecular angular momentum (spin polarization) on the bulk viscosity and relaxation time in a multicomponent gas mixture are considered. Formal theoretical results are obtained, using the Wang Chang-Uhlenbeck approach to the kinetic theory of gases with internal states. The results are given in terms of integrals over the weighted quantum mechanical degeneracy averaged cross section.

The Missouri Miner, April 29, 1976

The Missouri Miner Newspaper

No abstract provided.

The Missouri Miner, April 22, 1976

The Missouri Miner Newspaper

No abstract provided.

Missouri S&T Magazine, April 1976, Miner Alumni Association

Missouri S&T Magazine

No abstract provided.

Intermetallic Reactions In Vacuum-Deposited Nickel And Gold Films On (111) Silicon Single Crystals, K. H. Yoon, Gordon Lewis, L. L. Levenson

Materials Science and Engineering Faculty Research & Creative Works

Pure nickel and gold thin films were vacuum-deposited on (111) silicon single crystals. When Ni/Au/Si or Au/Ni/Si samples were heated to about 550° in situ, hexagonal or deformed hexagonal shaped crystallites were formed on the silicon substrates. The composition of these crystallites was determined by using x-ray diffraction, scanning electron microscopy and scanning Auger microprobe methods. The crystallites were identified as NiSi2. The crystal-lites on the (111) silicon plane parallel to the surface appeared as regular hexagons while the inclined crystal-lites resembled trapezia. The results of Auger spectra and in-depth composition profiles for Ni, Au, and Si showed that the …

The Missouri Miner, February 26, 1976

The Missouri Miner Newspaper

No abstract provided.

Computer Graphics As An Aid To Teaching Geometric Transformations, Sister Joseph K. Mcadams, Arlan R. Dekock

Business and Information Technology Faculty Research & Creative Works

During the past several years, there has been much discussion and controversy over what should be taught in high school mathematics, in general, and in high school geometry, in particular. Numerous mathematicians have encouraged the teaching of transformations as part of the standard high school mathematics curriculum[1-4,6-9]. The results of a recent survey of high school teachers of mathematics indicate that 19% have taught geometric transformations, 26% feel adequately prepared to teach such a topic, and 50% would like to teach the topic if materials were available for the average college prep student[5].

Computer Graphics As An Aid To Teaching Geometric Transformations, Joseph K. Mcadams, Arlan R. Dekock

Business and Information Technology Faculty Research & Creative Works

No abstract provided.

Missouri S&T Magazine, February 1976, Miner Alumni Association

Missouri S&T Magazine

No abstract provided.

The Missouri Miner, January 29, 1976

The Missouri Miner Newspaper

No abstract provided.

The Missouri Miner, January 22, 1976

The Missouri Miner Newspaper

No abstract provided.

A Class Of Functional Equations And Mielnik Probability Spaces, S. J. Guccione, Caslav V. Stanojevic

Mathematics and Statistics Faculty Research & Creative Works

Let S be the unit sphere of a normed real linear space N and let (S, p) be a Mielnik space of dimension two. For p(x, y) = f(‖x+y‖), x, yєS, where /is a continuous, strictly increasing function from [0, 2] onto [0, 1], it has been shown that (S, p) being two dimensional is equivalent to N being an inner product space. In some polarization problems modeled on the unit sphere of an inner product space, the transition probability p(x, y) may not be as well behaved as p(x, y) = f(‖x + y‖). In order to provide a …

Quasi-Unmixedness And Integral Closure Of Rees Rings, Peter G. Sawtelle

Mathematics and Statistics Faculty Research & Creative Works

For certain Rees rings ℛ of a local domain R, the quasiunmixedness of R is characterized in terms of a certain transform of ℛ being contained in the integral closure of ℛ. © 1976 American Mathematical Society.

On L¹ Convergence Of Certain Cosine Sums, John W. Garrett, Caslav V. Stanojevic

Mathematics and Statistics Faculty Research & Creative Works

It is shown that to a certain cosine series f, a Rees-Stanojević cosine sumn can be associated such that gn converges to f pointwise, and a necessary and sufficient condition for L1 convergence of gn to f is given. As a corollary to that result we have a generalization of the classical result of this kind. Other corollaries are given concerning the well-known integrability conditions. © 1975, American Mathematical Society.

On L¹ Convergence Of Certain Cosine Sums, John W. Garrett, Caslav V. Stanojevic

Mathematics and Statistics Faculty Research & Creative Works

Rees and Stanojevic introduced a new class of modified cosine sums (equation omitted) and found a necessary and sufficient condition for integrability of these modified cosine sums. Here we show that to every classical cosine series f with coefficients of bounded variation, a Rees-Stanqjevic cosine sum gn can be associated such that gn converges to f pointwise, and a necessary and sufficient condition for Lx convergence of gn to f is given. As a corollary to that result we have a generalization of the classical result of this kind. Examples are given using the well-known integrability conditions. © 1976 American …

Univalence Of Derivatives Of Functions Defined By Gap Power Series. Ii, S. M. Shah, S. Y. Trimble

Mathematics and Statistics Faculty Research & Creative Works

No abstract provided.

The Extremal Structure Of Locally Compact Convex Sets, J. C. Hankins, Roy M. Rakestraw

Mathematics and Statistics Faculty Research & Creative Works

Let X be a locally compact closed convex subset of a locally convex Hausdorff topological linear space E. Then every exposed point of X is strongly exposed. The definitions of denting (strongly extreme) ray and strongly exposed ray are given for convex subsets of E. If X does not contain a line, then every extreme ray is strongly extreme and every exposed ray is strongly exposed. An example is given to show that the hypothesis that X be locally compact is necessary in both cases. © 1976 Pacific Journal of Mathematics. All rights reserved.

Areal Geology, Brecciation, And Mineralization In The Trout Creek Area, Park And Chaffee Counties, Colorado, Barry Plin Mercer

Masters Theses

"The principle purpose of this thesis research has been to map rock types in an area selected for its occurrence of lead-zinc mineralization, and particularly to examine the character and origin of breccias present in the Leadville Limestone. The thesis area is located in Colorado along the east flank of the southernmost Mosquito Range, bounded by Buffalo Peaks Volcanic field on the north and Trout Creek on the south. Units mapped include the Sawatch Quartzite (Cambrian), Manitou Limestone (lower Ordovician), Harding Sandstone (middle Ordovician), Fremont Limestone (upper Ordovician), Parting Quartzite (Devonian), Dyer Dolomite (Devonian), and Leadville Limestone (Mississippian). The Leadville …

On Estimating Functionals Of Probability Densities And Applications To Parameter Estimation, Dolores Marie Halper Tichenor

Doctoral Dissertations

"Estimating the reciprocal of a scale parameter by means of frequency moments is investigated. An investigation of the bias and mean squared error is carried out and practical methods for implementing the method of frequency moments in the case of the Cauchy distribution are considered. A two-step estimation procedure is proposed, and a comparison of a one-step and two-step procedure is made. Uniform and normal distributions are considered as prior distributions for the interval width in the frequency moments method and mean squared error is tabulated.

A method to estimate I lxl ^j f ^k (x) dx is proposed where …

Part I. Thermodynamic Acidities Of Substituted Phenylacetylenes. Part Ii. Mercury Accumulation In Trout Of Southern Missouri, Eric T. Lloyd

Masters Theses

"PART I: THERMODYNAMIC ACIDITIES OF SUBSTITUTED PHENYLACETYLENES The thermodynamic acidities (pKa) of phenylacetylene and several para substituted phenylacetylenes in methanol were determined at 25ºC. These acidity constants were determined using a quenching technique which involves converting the phenylacetylenic anion, present at equilibrium as sodium phenylacetylide, to the tritium labelled carbon acid. By liquid scintillation counting techniques, the concentration of the anion was determined and the pKa of the phenylacetylene compound calculated. The resulting pKa's are: p-nitrophenylacetylene, 17.98, p-bromophenylacetylene, 18.10, p-fluorophenylacetylene, 18.14, phenylacetylene, 18.50, and p-methylphenylacetylene, 18.60. The effect of a substituent in the para position on the relative acidities is …

Extremal Structure Of Convex Sets, J. C. Hankins

Doctoral Dissertations

"Let X be a locally compact closed convex subset of a locally convex Haus Dorff topological linear space E. It is shown that every exposed point, respectively, ray of Xis a strongly exposed point, respectively, ray of X. Also, every extreme point, respectively, ray of Xis a denting point, respectively, ray of X. When the above results are combined one can restate two well-known Krein Milman type theorems due to Klee. There exists a closed convex set that has an extreme point that is neither a denting point nor an exposed point.

In Banach spaces, necessary and sufficient conditions are …

Detection In Image Dependent Noise, David R. Cunningham, Robert D. Laramore, Eamon Barrett

Electrical and Computer Engineering Faculty Research & Creative Works

The detection of two-dimensional optical signals which have been corrupted by noise is considered. Discussion is limited to the detection of a known object in a known location. The problem is approached from the classical statistical technique of hypothesis testing. Initially the solution is formulated in very general terms. The decision rule is derived for a signal distorted by noise of an unspecified type which may include signal dependent noise. Once the decision rule is obtained, the probabilities of false alarm and detection are evaluated from a priori knowledge of the noise and imaging system. The general results are applied …

Numerical Simulation Of A Widely Used Cloud Nucleus Counter., Darryl J. Alofs, J. C. Carstens

Mechanical and Aerospace Engineering Faculty Research & Creative Works

The Performance of the Conventional Horizontal Plate Thermal Diffusion Chamber as a Cloud Nucleus Counter Was Studied. Numerical Calculations Were Performed in Order to Follow the Simultaneous Drop Growth and Sedimentation in the Spatially and Temporally Nonuniform Supersaturation Field. the Effect of Nuclei Distribution and Smallest Detectable Drop Size Were Investigated. the Results Indicate Order of Magnitude Uncertainty in the Count at 0. 1% Supersaturation, and a Factor of 2 Uncertainty at 1. 0% Supersaturation.

A Closed-Form Solution For The Radiosity At The Edge Of A Rectangular Cavity, Alfred L. Crosbie

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

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 …