| Radio Frequency Spectroscopy of Penning Ions: Measurement of Ion and Molecular Lifetimes. |
01 OCT 1975 |
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| Authors:
Richard A. Anderson; Laird D. Schearer; MISSOURI UNIV ROLLA
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 | The radiative lifetimes of some doublet P(3/2) states of metal atomic ions have been measured in a flowing helium afterglow by using the method of zero field level crossing (Hanle effect). The use of the flowing helium afterglow provides an efficient means for producing the ions to be studied (by Penning Ionization) in an environment where system parameters can be easily modified. The optical emission spectra of I2 obtained in ... |
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| Marine Fog Studies: Dynamic Modeling to Integrate Field Measurements and Laboratory Experiments. |
JUN 1975 |
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| Authors:
Shen C. Lee; MISSOURI UNIV ROLLA
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| Dynamic modeling is being conducted to predict the formation and dissipation processes in marine fog situations. The physical processes of condensation, evaporation, precipitation, radiation, and turbulence are being established by using available laboratory experiments for the purpose of analyzing the transport phenomena of heat, mass, and momentum in an atmospheric-oceanic system. The verification of analytical results with field data obtained in actual fog situations establishes the strengths and weaknesses of ... |
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| Radio Frequency Spectroscopy of Penning Ions: Measurement of Ion and Molecular Lifetimes. |
01 OCT 1974 |
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| Authors:
Richard A. Anderson; Laird D. Schearer; MISSOURI UNIV ROLLA
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| The optical emission from additive impurity ions in a fast flowing helium afterglow created in a Penning ionizing collision with helium metastable atoms has been examined in the spectral range 2000-6000A. If the helium metastable atoms are optically oriented, the resulting spin conservation induces an equivalent polarization in the Penning ions and electrons. The polarization transfer to a variety of ions has been investigated, and techniques have been developed to ... |
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| The Development of Chronic Insertable Oxygen Electrodes. |
25 SEP 1974 |
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| Authors:
Ronald E. Barr; Allen W. Hahn; Kenneth G. Mayhan; MISSOURI UNIV ROLLA
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| An attempt is being made to develop long-term stability in oxygen sensing electrodes. Suitable designs of such electrodes would then be made for long-term insertion or implantation in tissue to chronically monitor oxygen tension. By employing techniques of pretreatment and periodic anodization to a bare-tipped electrode in saline, repeatable electrode operating characteristics have been obtained for over six days. Investigations to obtain this type of response in biological media and ... |
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| A Further Study of Life-Testing Models and Simple Estimates for the Logistic Distribution. |
FEB 1974 |
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| Authors:
Max Engelhardt; Lee J. Bain; Robert Smith; MISSOURI UNIV ROLLA
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| Section 1 is concerned with simple statistical procedures for location and scale parameters of the extreme-value distribution, and related procedures for parameters of the Weibull distribution. Simple, yet rather efficient, unbiased estimators of the location and scale parameters of the logistic distribution are provided in Section 2. A general method of obtaining simple point estimators of parameters for polynomial hazard function models and a detailed analysis of the linear case ... |
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| Radio Frequency Spectroscopy of Penning Ions: Measurement of Ion and Molecular Lifetimes. |
07 SEP 1973 |
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| Authors:
Laird D. Schearer; Richard A. Anderson; MISSOURI UNIV ROLLA
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| Collisions of an impurity species with optically oriented metastable helium atoms in a flowing afterglow yield ensembles of excited atomic and molecular ions. Conversation of both the longitudinal and transverse components of spin angular momentum has been demonstrated. These excited ions are then available for radiofrequency spectroscopy to yield radiative lifetimes, collisional mixing cross sections, and g-factors. Coherence transfer to the excited ions has been observed to the excited Penning ... |
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| A Study of Life-Testing Models and Statistical Analyses for the Logistic Distribution. |
FEB 1973 |
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| Authors:
Lee J. Bain; Jim Eastman; Max Engelhardt; MISSOURI UNIV ROLLA
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| Section I summarizes several methods for obtaining various useful types of models, particularly ones with U-shaped hazard functions. These models include mixed models, composite models, components in series, nonhomogeneous Poisson Processes, polynomial models and models obtained by transformations from other well-known models. Some point estimation and hypothesis testing results are given for linear and quadratic hazard function models in Section 2. In Section 3 point and interval estimation procedures based ... |
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| A study of the extrusion forming of waste plastics and glass. |
OCT 72 |
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| Authors:
P. G. Hansen; R. L. Davis; S. G. Kelkar; MISSOURI UNIV ROLLA
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| A successful waste glass-plastics recovery can be made possible through the use of hydrostatic extrusion. The results indicate an end product which is superior to concrete as a building material together with a versatility from a consideration of the required cross section. The effects of the extrusion ratio on the extrudate strength and on the extrudate pressure are discussed. (P. S.-PL) ANNOTATION: A study of the extrusion forming of waste ... |
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| Magnetic Structure Determination of Rare Earth-Cobalt-Iron Systems, RFe(x)Co(5-x) by Neutron Diffraction. |
AUG 1972 |
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| Authors:
William J. James; Remy Lemaire; MISSOURI UNIV ROLLA
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| Hexagonal intermetallic compounds close to R2M17 stoichiometry in the Lu-Fe, Th-Ni, Y-Ni, and Er-Co systems have been studied by single crystal x-ray techniques. Additional neutron diffraction studies were made of the Lu-Fe compound. The thermal variation of lattice parameters of rare earth-transition metal intermetallic compounds rich in Fe, Co, or Ni in the temperature range 25-900K was studied. Lattice parameter measurements have been made on Y(x)La(1-x) Fe(y)Co(5-y) alloys. Neutron diffraction ... |
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| Inferential Procedures for the Weibull and Generalized Gamma Distributions. |
NOV 1970 |
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| Authors:
Lee J. Bain; Charles E. Antle; MISSOURI UNIV ROLLA
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| The report is concerned primarily with two general topics, the development of statistical procedures for the two-parameter and three-parameter Weibull distributions based on maximum likelihood estimators, and a study of the properties of the Weibull distribution as a life-testing model when the more general three-parameter generalized gamma distribution is assumed applicable. New statistical methods for the generalized gamma distribution are developed to make this study possible. The procedures developed for ... |
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| CRITICAL STUDY OF APPROXIMATING FUNCTIONS(AND METHODS) AS APPLIED TO OCEAN STATION DATA. PROJECT 1. REGRESSION ANALYSIS, |
JUN 1969 |
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| Authors:
Billy E. Gillett; MISSOURI UNIV ROLLA
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| The purpose of this study is to develop experimental multiple regression models to predict ocean temperature, salinity, and sound velocity as functions of geographical location, time, depth, and possibly other independent variables such as ocean bottom depth, type of ocean bottom, cloud cover, and humidity. The stepwise multiple regression technique is used in the model building process. Thus, these models are good for predicting temperature, salinity and sound velocity at ... |
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| CALORIMETRIC MEASUREMENT OF NEGATIVE SURFACE ENERGY IN SUPERCONDUCTORS OF THE SECOND KIND. |
1968 |
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| Authors:
Don C. Hopkins; MISSOURI UNIV ROLLA
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| The experimental details of this study are covered in the Ph.D. Thesis of Robert R. Riche entitled: 'A Calorimetric Study of the Effects of Surface Energy in a type II Superconductor.' The entropy of the mixed state of type II superconductors has been investigated experimentally. The results have been interpreted in terms of the interaction of quantized fluxoids (near H sub c1) or solutions of the Ginsburg-Landau equations (near H ... |
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