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University Of New Mexico Board Of Regents Minutes For July 10, 1969, University Of New Mexico Board Of Regents

Board of Regents Meeting Minutes

Minutes from the 1969-07-10 Board of Regents Meeting

New Mexico Lobo, Volume 072, No 145, 7/3/1969, University Of New Mexico

1969

New Mexico Lobo, Volume 072, No 145, 7/3/1969

Improved Numerical Techniques And Solution Of A Separated Interaction Of An Oblique Shock Wave And A Laminar Boundary Layer., Ben Douglas Gay

Mechanical Engineering ETDs

Initial, boundary and differencing techniques of numerical gas dynamics were improved, and a separated interaction of an oblique shock wave and a laminar boundary layer was solved numerically.

The computing time of a Lax-Wendroff differencing technique was reduced 60 percent by making algebraic changes. Inflow and wall boundary techniques were improved, and the new techniques were verified by satisfactory solutions of plain laminar boundary layers and unseparated interactions of oblique shock waves and laminar boundary layers. The differencing technique was numerically unstable for separated interactions.

Results of a sample all-centered differencing technique agreed with those of a Lax-Wendroff technique for …

New Mexico Lobo, Volume 072, No 144, 6/27/1969, University Of New Mexico

1969

New Mexico Lobo, Volume 072, No 144, 6/27/1969

New Mexico Lobo, Volume 072, No 142, 6/13/1969, University Of New Mexico

1969

New Mexico Lobo, Volume 072, No 142, 6/13/1969

University Of New Mexico Board Of Regents Minutes For June 06, 1969, University Of New Mexico Board Of Regents

Board of Regents Meeting Minutes

Minutes from the 1969-06-06 Board of Regents Meeting

Faculty Senate Meeting Minutes, 06/04/1969, P 804-929, Unm Faculty Senate

Faculty Senate Meeting Minutes, 1920 - 2013

No abstract provided.

Geology Of Part Of The Creston Range, Mora County, New Mexico, Tim T. Schowalter

Earth and Planetary Sciences ETDs

The low hills and hogback ridges of the Creston Range form the southeastern edge of the Sangre de Cristo Mountains.

Rocks ranging from Precambrian to Quaternary are exposed in the Creston Range. The Precambrian rocks consist of generally foliated, medium-grade metamorphics intruded by concordant, simple pegmatites. These rocks have been subjected to at least two episodes of deformation of Precambrian age. Approximately 9,000 feet of sedimentary rocks of Devonian (?)-Mississippian to Permian age that were deposited in an intracratonic basin to shelf environment are present. Tertiary-Quaternary rocks are represented by outliers of a basalt flow from the Ocate colcanic field …

New Mexico Lobo, Volume 072, No 141, 5/21/1969, University Of New Mexico

1969

New Mexico Lobo, Volume 072, No 141, 5/21/1969

A Critique Of Logical Atomism, Ramesh Nath Patel

Philosophy ETDs

Logical atomism is Russell’s and early Wittgenstein’s view that world is composed of simple sensible, mutually independent atomic facts. Our everyday knowledge and statements of facts are vague. To clarify them we should analyze them till we reach unanalyzable, ultimate atomic facts based only on sense experience. An atomic fact is a particular having one character, or is two or more particulars in a relation. Only external relations hold among atomic acts. The truth of a compound proposition is determinable as a function of the truths of the atomic propositions involved. To dispense with internal relations among atomic facts, we …

Effect Of Supersaturation On The Kinetics Of The Gypsum-Anhydrite Transition., Pao-Chin Chao

Earth and Planetary Sciences ETDs

Gypsum and anhydrite have been found extensively in evaporite beds. Gypsum is the low-temperature, hydrous form of calcium sulfate, while anhydrite is the high-temperature, anhydrous form. The temperature of gypsum-anhydrite transition has been fixed, by both solubility measurements and thermodynamic calculations, in the range of 38 to 42°c in pure water; and at lower values with increasing NaCl content in the solutions. However, the precipitation of anhydrite has never been obtained experimentally in its own stability field, gypsum is always metastably formed instead.

Many investigators believe that the primary precipitation of anhydrite from solutions is improbable. It is usually converted …

New Mexico Lobo, Volume 072, No 139, 5/19/1969, University Of New Mexico

1969

New Mexico Lobo, Volume 072, No 139, 5/19/1969

The Monte Carlo Method Applied To An Estimation Of Delayed Neutron Response, Garland David Turner

Physics & Astronomy ETDs

An experimental program has been undertaken at Los Alamos Scientific Laboratory to study delayed neutron effects. As a part of this program, experiments were conducted with thin disks of various fissionable materials to measure the delayed neutron response to a pulse of high-energy neutrons. In support of the experiments, calculations were made with a computer program which solves the Boltzmann transport equation by finite difference methods. Difficulties with the calculations led to an analysis showing that correct treatment of neutrons moving parallel to the faces of the disk was vital to the success of the calculation. As an extension of …

Cosmic Ray Anisotropy In Interplanetary Space, Jacqueline Hope Ericksen

Physics & Astronomy ETDs

The solar diurnal variation of cosmic ray intensity results from an interaction of cosmic rays with the co-rotating spiral interplanetary magnetic field. Changing interplanetary conditions might therefore be reflected in the diurnal variation. In this dissertation, the dependences of the quiet-day solar diurnal variation on the general level of solar activity and on the interplanetary sector structure are investigated. It is found that the amplitude of the solar diurnal variation as recorded by the Embudo and Bolivia multidirectional underground muon telescopes is significantly smaller near solar minimum (1965) as compared to solar maximum (1968). This amplitude dependence is associated with …

New Mexico Lobo, Volume 072, No 138, 5/16/1969, University Of New Mexico

1969

New Mexico Lobo, Volume 072, No 138, 5/16/1969

Theoretical Determination Of The Spectroscopic Constants Of The H₂ Ground State, Fun-Min Wu

Physics & Astronomy ETDs

Recently the h2 ground state potential E was calculated in double precision by Kolos and Wolniewicz using a 1oo-term wave function. For this kw potential the coefficients in a power series expansion about the potential minimum re are here determined by using the pure electronic potential and central differences. Resulting Dunham potential coefficients Ao, A1, A2, A3, A4, A5, and A6 are 79703 cm-1, -1.6031, 1.865, -1.999, 2.048, -2.02 and 2.0, respectively. From these coefficients the spectroscopic constants are found to be yoo = 8.36, y10 = 4406.6, y20 = -122.6, y3o = 1.2, y40 = -0.04, yo1, = 60.838, …

Liquid Scintillators. The Decomposition Of 2, 5-Diphenyloxazole In Ultraviolet Light. A Thin Layer Chromatography Study, John W. Hustler

Chemistry and Chemical Biology ETDs

A study has been initiated in order to understand more completely the manner in which a model organic scintil­lator decomposes in ultraviolet light. The compound, 2,5-diphenyloxazole (PPO), was dissolved in toluene in quartz vials and irradiated with ultraviolet light for various intervals of time. Both. vacuum-dried and untreated samples of PPO \·1ere subjected to UV excitation in sodium-dried and water-saturated solutions of toluene. The effect of passing oxygen and nitrogen through the solutions was also studied with the confirmation that dissolved oxygen and water accelerated the decomposition leading to the formation above the meniscus of the vial of a white …

An Experimental Study On The Effect Of Highly-Directed Versus Non-Directed Homework Assignments On Student Achievement, John Robert Micklich

Teacher Education, Educational Leadership & Policy ETDs

Description

The study was conducted at Northern Arizona University during the fall semester of 1968. It involved a total of six instructors, all full time members of the mathematics faculty, and 304 students; 203 in 6 classes of general mathematics and 101 in 61 classes of college algebra.

The directed homework classes received assignments that were taken up at the next class meeting, graded, scored, re­corded, and returned. The non-directed classes received the same assignments, but the homework was not taken up. There were lectures and discussion in both groups prior to assign­ing homework and after it was turned in. …

New Mexico Lobo, Volume 072, No 137, 5/15/1969, University Of New Mexico

1969

New Mexico Lobo, Volume 072, No 137, 5/15/1969

Pseudo-Lattices With Application To Topology And Analysis., Ih-Ching Hsu

Mathematics & Statistics ETDs

In recent times, lattice theory has pervaded many branches of mathematics. Usually, however, the structures of primary interest are not lattices themselves. The lattice structure is arrived at by passing to a quotient set.

Most Stable Tolerance Limits For Log-Convex Distributions, John Richard Ellefson

Mathematics & Statistics ETDs

Necessary and sufficient conditions are given for reversing Jensen's inequality for continuous convex functions, and the result is then stated for the discrete case. The main theorem of Hanson and Koopmans' (1964) pioneering tolerance limit paper is extended to the case of any finite number of order statistics from a probability distribution F for which either -log(1 - F) or - log F is convex. In the first case upper tolerance limits and in the second case lower tolerance limits are exhibited for any content p and any confidence ɣ, 0 < p, ɣ < 1 whenever the sample size is not less than two. When F is such that both functions are convex, two-sided, p-content tolerance intervals at confidence level rare constructed for any sample size greater than one. The distributions for which both functions are convex include the Pólya distribution functions of order two, which includes the normal and exponential families. The distribution of the coverage of the tolerance limits is calculated using an extension of Renyi’s (1953) work on exponential random variables. Goodman and Madansky's (1962) most stable criterion for tolerance intervals is characterized in terms of its second moment about a point, and some of its other properties are established. The results are applied to develop a method for finding the most stable one-sided tolerance limits. The general method is applicable to the problem of finding the most stable two-sided tolerance intervals, but the required explicit calculation of the probability distribution function is lacking. Instead the two-sided tolerance interval is found in terms of two one-sided tolerance limits.

New Mexico Lobo, Volume 072, No 135, 5/13/1969, University Of New Mexico

1969

New Mexico Lobo, Volume 072, No 135, 5/13/1969

The Chemical Behaviour Of Iodine At Low Concentrations In Strongly Acidic Solutions, Howard Allen Boyd Jr.

Chemistry and Chemical Biology ETDs

Radioactive tracers have been used extensively to investigate the behavior of substances at concentration too low to be detected by ordinary chemical or instrumental methods (1). Some elements exist only as short lived isotopes, and their chemistry is known only

in terms of their behavior at low concentrations, Other elements that have stable or long lived isotopes may be studied at low con­centrations by the use of suitable tracers, usually carrier-free radioisotopes when they are available,

Semi-Groups And A Class Of Singular Perturbation Problems, Andrew Y. Schoene

Mathematics & Statistics ETDs

No abstract provided.

Mission Los Santos Angeles De Guevavi:Jesuits On The Pima Frontier, 1691-1767., John L. Kessell

History ETDs

In anticipation, a lively crowd had begun to gather around the corral where the bullfights would soon begin. Solemn Nass and the procession were over now. They were laughing and gossiping -ranchers and settlers, prospectors and soldiers, dozens of them, relatives and compadres -dressed in their gaudy best and come from leagues around at Father Joseph Garrucho's invitation to join in the patronal feast. In honor of the day he had suspended work on the new church, and Don Joaquin dle Casares, master builder from Arizpe, was enjoying himself with the others.

University Of New Mexico Board Of Regents Minutes For May 10, 1969, University Of New Mexico Board Of Regents

Board of Regents Meeting Minutes

Minutes from the 1969-05-10 Board of Regents Meeting

Enumeration Of Certain Binary Arrays, Douglas Jackson

Mathematics & Statistics ETDs

T.V. Narayana [9] and later L. Carlitz [3] have solved the following problem. Given positive integers n, r, L₁,…,L_n-1, a₁,…,a_n such that a_i ≥ r, i = 1,...,n and a_i + L_i ≥ a_i+l, i = 1,…,n-1, how many n x r matrices [a_ij] of positive integers are there which satisfy

1.) a_i1 = a_i i=1,...,n

2.) a_ij > a_i,j+1 i = 1,...,n j = 1,..., r-1

3.) a_ij + L_i ≥ a_i+1,j i=1,...,n-1 j=1,...,r.

Narayana gave a formula for …

New Mexico Lobo, Volume 072, No 131, 5/7/1969, University Of New Mexico

1969

New Mexico Lobo, Volume 072, No 131, 5/7/1969

New Mexico Lobo, Volume 072, No 130, 5/6/1969, University Of New Mexico

1969

New Mexico Lobo, Volume 072, No 130, 5/6/1969

The Convergence Of Numerical Solutions Of Hydrodynamic Shock Problems., Darrell Lee Hicks

Mathematics & Statistics ETDs

In 1944 von Neumann Conjectures that only averages of numerical solutions, produced by a discrete scheme he had proposed to solve hydrodynamic shock problems, would converge as the meshes were refined. The hydrodynamic shock problem is defined here as: Find a solution, allowing discontinuous solutions, to the three conservation laws, the increasing-entropy law, and the ideal-gas law when giben physically acceptable initial and boundary values. For discrete schemes similar to von Neumann’s, it is verified that the averages do converge and it appears that von Neumann was also correct in surmising that only the averages converge. A smoothing device named …