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Thermodynamics Of The Lanthanide Trifluorides. I. The Heat Capacity Of Lanthanum Trifluoride, Laf₃ From 5 To 350°K And Enthalpies From 298 To 1477°K, William G. Lyon, Darrell W. Osborne, Howard E. Flotow, Fernande Grandjean, Ward N. Hubbard, Gerald K. Johnson

Chemistry Faculty Research & Creative Works

The heat capacity of a sample of LaF₃ was determined in the temperature range 5-350°K by aneroid adiabatic calorimetry and the enthalpy from 298.15 to 1477°K by drop calorimetry. The heat capacity at constant pressure C°_p(298.15°K), the entropy S°(298.15°K), the enthalpy [H°(298.15°K)-H°(0)] and the Planck function -[G°(298.15°K)-H°(0)]/298.15°K; were found to be (90.29±0.09) J °K^-1·mole^-1, (106.98±0.11) J °K^-1·mole^-1, (16717±17) J mole^-1, and (50.91±0.05) J °K ^-1·mole^-1. The thermal functions from the present research were extended up to the melting temperature (1766°K) by combination with previously …

Angular Differential Cross Sections For 25-, 50-, And 100-Kev-Proton Excitation Of Helium To The N=2 Level, John T. Park, Jacob M. George, Jerry Peacher, John E. Aldag

Physics Faculty Research & Creative Works

Differential cross sections for 25-, 50-, and 100-keV-proton excitation of helium to the n=2 level have been determined for center-of-mass scattering angles from 0 to 1.2 mrad. The cross sections were obtained from an analysis of the angular distribution of the scattered protons which had lost an energy corresponding to the excitation of the helium target to its n=2 level. The differential cross section is very sharply peaked in the forward direction and decreases by a factor of 45 in 1.0 mrad at 25 keV and by a factor of 650 in 1.0 mrad at 100 keV. The data are …

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 …

Magnetic Properties Of Linear Chain Systems: Metamagnetism Of Single Crystal Co(Pyridine)₂Ci₂, Simon N. Foner, Richard B. Frankel, William Michael Reiff, Herbert Wong, Gary J. Long

Chemistry Faculty Research & Creative Works

The metamagnetic behavior of the low temperature properties of single crystal Co(pyridine)₂Cl₂ is discussed. At 1.25 K oriented single crystals exhibit a two-step metamagnetic transition at applied fields ~0.8 and 1.6 kG along the b-axis, a single transition at ~0.7 kG for applied fields along the a* axis, and a single transition at ~4.2 kG for an applied field along the c axis. Just above the transition fields a moment of 2µ_B/Co atom is measured for B₀ parallel to the a* axis or b axis, and 0.4µ_B/Co atom is measured for the …

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.

Experimental Study On Seismic Behavior Of Industrial Storage Racks, Helmut Krawinkler

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

No abstract provided.

Angular Differential Cross Sections For Excitation Of Atomic Hydrogen By 25-, 50-, And 100-Kev Protons, John T. Park, John E. Aldag, Jerry Peacher, Jacob M. George

Physics Faculty Research & Creative Works

Angular differential cross sections for the process H⁺ + H(1s ) → H⁺ (θ ) + H ( n = 2 ) are presented for 25-, 50-, and 100-keV protons incident on atomic hydrogen. The experimental results are in fair agreement with Glauber-approximation calculations.

Electron Drift Velocities In Helium-Fluorine Gas Mixtures, Kaare J. Nygaard, John L. Fletcher, Scott R. Hunter, Stephen R. Foltyn

Physics Faculty Research & Creative Works

Using a simple time-of-flight technique, we have measured the electron drift velocity in helium with 0.1-1% fluorine additive. Our results in a 0.1% mixture are in close agreement with data in pure helium. The measured drift velocity increases with increasing fluorine concentration. © 1978, American Institute of Physics. All rights reserved.

The Missouri Miner, April 20, 1978

The Missouri Miner Newspaper

No abstract provided.

The Missouri Miner, April 13, 1978

The Missouri Miner Newspaper

No abstract provided.

The Missouri Miner, March 09, 1978

The Missouri Miner Newspaper

No abstract provided.

The Missouri Miner, March 02, 1978

The Missouri Miner Newspaper

No abstract provided.

The Missouri Miner, February 23, 1978

The Missouri Miner Newspaper

No abstract provided.

The Missouri Miner, February 16, 1978

The Missouri Miner Newspaper

No abstract provided.

The Missouri Miner, February 09, 1978

The Missouri Miner Newspaper

No abstract provided.

The Missouri Miner, February 02, 1978

The Missouri Miner Newspaper

No abstract provided.

Missouri S&T Magazine, February 1978, Miner Alumni Association

Missouri S&T Magazine

No abstract provided.

Fixed Point Theorems In Generalized Hilbert Spaces, Troy L. Hicks, Ed W. Huffman

Mathematics and Statistics Faculty Research & Creative Works

Some fundamental fixed point theorems are proved for locally convex spaces whose generating family of semi norms satisfies the parallelogram law. © 1978.

Convergent Factorial Series Solutions Of Linear Difference Equations, W. J. Fitzpatrick, L. J. Grimm

Mathematics and Statistics Faculty Research & Creative Works

No abstract provided.

The Conjugate Of A Singular Functional Differential Operator, Leon M. Hall

Mathematics and Statistics Faculty Research & Creative Works

An explicit representation of the conjugate of a singular functional differential operator is given. Some theorems and their corollaries are proven.

K-Theory Doesn't Exist, Ethan Akin

Mathematics and Statistics Faculty Research & Creative Works

No abstract provided.

The Transition Of An Engineer To An Engineering Manager: The People Problem., Edward Leon Boyd

Masters Theses

“A review of existing literature and a survey of engineering managers are used to determine the work of the engineering manager, the career path leading to an engineering management position, and the skills that should be acquired by the engineer desiring to make the transition to an engineering management position.

The work of the engineering manager, like that of any manager, is getting things done through other people. In advancing to the first formal management position, the engineer usually passes through three career stages: engineer, informal manager, and formal manager. While advancing through these career stages, the engineer must increase …

An X-Ray Diffraction Analysis Of The Lacro₃-Laalo₃ Solid Solution Series, Robin Ashley Murphy

Masters Theses

"A crystallographic study was made of powders from the LaCr_1-x Al_xO₃, La_.90(Mg_.05 Cr_1-x Al_x )_.95O_2.83 , and La_1±xCrO₃ systems. The relationships between composition and thermal expansion, electrical conductivity, and vaporization were also investigated. The x-ray diffraction data of the LaCrCO₃ - LaAlO₃ compounds showed the system to form a single phase solid solution for any given sample from the series. The orthorhombic to rhombohedral phase transition was depressed to below room temperature at approximately 13% Al⁺³ substitution"--Abstract, page ii.

Development Of A Quadratic Finite Element Solution Of The Convective-Transport Equation., David A. Dillard

Masters Theses

"A quadratic finite element has been developed for the solution of the general three-dimensional convective-transport equation. Inherent instabilities in the numerical solution arise when the convective terms in the governing equation become significant. An application of upwinding techniques to the 20 degree of freedom serendipity element failed to produce acceptable results. Upwinding was applied to the 27 degree of freedom Lagrangian element with good results. Results of the latter element are given for several problems, including a model of a round to round metal forming process"--Abstract p. iii

Locally Quasi-Uniform Structures And Strongly Complete Quasi-Uniform Structures, Shirley Carpenter Huffman

Doctoral Dissertations

"Locally quasi-uniform spaces are studied, and it is shown that a topological space (X,t} admits exactly one compatible locally quasi-uniform structure if and only if tis finite.

A general topological result is given showing that a topological space with an infinite topology has either an infinite ascending or an infinite descending sequence of open sets.

The concept of aw-space is introduced, and it is ii shown that every w-space admits a strongly complete quasi-uniform structure. Also, a characterization of w-spaces is given showing when the fine quasi-uniform structure is equal to the fine locally quasi-uniform structure.

An example is given …

Inferences On The Shape Parameter Of The Gamma Distribution And Cramer-Rao Lower Bounds From Censored Data, James Wyckoff

Doctoral Dissertations

"This dissertation is presented in publication form and consists of two articles. The first article considers inferential procedures on the shape parameter of a gamma distribution from censored sampling. Moments for the statistic T = log(x̅_r/x͠_r) are found and used to derive a two-moment chi-square approximation for T. This approximation is then used for testing, estimating, and setting confidence bounds on the shape parameter of a gamma distribution. The second article concerns the Cramér-Rao lower bounds for the variances of estimators, where the estimators are based on censored data. Convenient techniques are derived to evaluate the …

Some Selection And Ranking Procedures For The Two Parameter Weibull Distribution, Joseph Victor Kingston

Doctoral Dissertations

"This dissertation investigates some selection and ranking procedures for two or more Weibull populations. In particular it studies a restricted subset selection procedure when the populations have a common shape parameter, a 'pick the one best ' procedure for different shapes, classification procedures for both cases, simultaneous and 'best population' confidence intervals for both cases, and, finally, the problem of selecting the one population with largest or smallest shape. Except for the last problem named, the populations are ranked by their reliability. All procedures employ estimates of the parameters of interest based on either uncensored or Type II censored samples. …

The Paleontology And Biostratigraphy Of The Lower Ordovician Gasconade Formation Of Missouri, Bruce L. Stinchcomb

Doctoral Dissertations

"The biostratigraphy, paleoecology and paleontology of the Lower Ordovician Gasconade Formation in Missouri is reinvestigated in an attempt to solve problems that have arisen since the classic earlier studies by Ulrich, Bridge and others. Twelve faunal zones are established, many based on primitive mollusks which dominate the formation. The oldest of these, in the Van Buren Member, is the Hypseloaonus Zone. This is followed by a zone characterized by the primitive cephalopod Dakeoaeras then a zone dominated by the gastropod Sinuopea. These zones are succeeded by the Euomphalopsis, Matthevia and Ozarkina Zones which lie stratigraphically below the Cryptozoon Zone, …

Adaptive Control Of A Cloud Simulation Chamber Expansion System, Katiya Greigarn

Doctoral Dissertations

"This dissertation describes the design and construction of a closed-loop computer controlled expansion system for a cloud simulation chamber. The chamber is used to simulate atmospheric phenomena for the study of microphysical processes. In order to accomplish this, the sample gas inside the chamber must be expanded adiabatically. This means the wall temperature and the gas temperature must be made to agree as closely as possible. The wall is cooled by thermoelectric modules, and the temperature is controlled by analog controllers. The gas is cooled by the adiabatic expansion, and the corresponding pressure is controlled by a laboratory minicomputer, a …

The Rollamo 1978, University Of Missouri - Rolla

Yearbooks

No abstract provided.