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Charge Transfer Between Oˉ Ions And O₂ Molecules In The Ground State And Singlet Delta Excited State, Ronald Floyd Mathis

Doctoral Dissertations

"A crossed-beam apparatus has been built and used to study charge transfer between O⁻ ions and O₂ molecules in the ground state and in the metastable, singlet delta, excited state. The energy of the incident ions ranged from 10 to 10,000 eV.

The cross section for charge transfer between O⁻ and ground state O₂ was found to peak at about 5 keV, as predicted on the basis of the Rapp and Francis theory. At the lower energies there is good agreement with the previous measurements of Snow et al., and Rutherford and Turner, who also used crossed beam techniques. The …

Anionic Polymerization Of A Series Of 5-Membered Cyclocarbosiloxanes, Balaraman Suryanarayanan

Doctoral Dissertations

"A study has been made on the anionic polymerization of a series of 5-membered cyclocarbosiloxanes with methyl and/or phenyl substituents. The polymerization was initiated by lithium n-butyldiphenylsilanolate in the presence of tetrahydrofuran. Six 5-membered cyclocarbosiloxanes (2,2,5,5-tetramethyl-1-oxa-2,5-disilacyclopentane; 2,2,5- trimethyl-5-phenyl-1-oxa-2,5-disilacyclopentane; 2,5-dimethyl-2,5-diphenyl- 1-oxa-2,5-disilacyclopentane; 2,2-dimethyl-5 ·,5-diphenyl-1-oxa- 2,5-disilacyclopentane; 2-methyl-2,5,5-triphenyl-1-oxa-2,5-disilacyclopentane; 2,2,5,5-tetraphenyl-1-oxa-2,5-disilacyclopentane) were synthesized. Since the chemical shifts of the protons of the cyclic monomers and the polymers formed were different, the rate of polymerization of the cyclic monomers was measured utilizing an NMR spectrometer. The effects of tetrahydrofuran concentration, initiator concentration and water concentration on the rate of polymer formation and on the molecular weight of …

Auger Satellites Of The L₂₃ Auger Emission Bands Of Al, Si, And P, John Junior Melles

Doctoral Dissertations

"In this study a detailed investigation of the high energy satellites of the L₂₃ Auger emission bands of Al, Si, and P was made. The satellites are interpreted as arising from double ionization of the L₂₃ shell rather than from a plasmon gain process. The parent-satellite energy separations, ΔE, between like structures were determined and were found to be consistently smaller than the volume plasmon energies measured for the same samples. A comparison of Si and SiO revealed no evidence that ΔE for Si is dependent on the volume plasmon energy of the sample.

The satellite threshold excitation …

Tchebycheff Approximation On A Discrete Point Set: Algorithms Old And New, William Edward Mcbride

Doctoral Dissertations

"Several linear and nonlinear algorithms for solving the discrete Tchebycheff problem are compared in this study. The Lawson algorithm is compared with two more well-known methods of linear Tchebycheff approximation. A new acceleration scheme for the Lawson algorithm is introduced and its performance is tested with an already existing acceleration technique. The new version is found to be better than the previous one but not as effective as the traditional Exchange method.

A nonlinear version of Lawson's algorithm is proposed for the solution of problems having approximating functions which are varisolvent. Some linear theorems of Lawson are extended to the …

Petrography, Diagenesis And Environment Of Deposition Of The Gasconade Formation, Lower Ordovician, Southern Missouri, Abd El-Aziz El-Hady A. Borahay

Doctoral Dissertations

"The Gasconade Formation (Lower Ordovician) has been studied in the surface and subsurface in the Ozarks of Missouri and northeastern Oklahoma. The formation is mostly dolomite with a sandstone member at the base (Gunter) and frequent occurrences of chert bodies of different shapes particularly in the middle part.

The dolomite crystals in the lower and upper parts are subhedral to euhedral of equicrystalline to two-size fabric and range in size from 300-600 microns, and subhedral to anhedral of variable fabric and smaller size in the middle part. A sequence of cloudy and clear areas, named zoning, characterizes the euhedral crystals. …

Petrography, Chemical Composition, And Stratigraphic Setting Of The Coals Of North-Central Missouri, William Keith Wedge

Doctoral Dissertations

"Under a grant from the National Air Pollution Control Administration, the Missouri Geological Survey undertook a core drilling program to learn more about the coals in north-central Missouri. The stratigraphic setting and chemical and petrographic characteristics of 43 complete samples of coal recovered from 13 diamond drill holes in the exploration program in north-central Missouri are major contributions of this study. These samples represent twelve different coal beds of the Atokan and Desmoinesian Series of the Pennsylvanian System of Missouri and range in thickness from 9.6 to 44.4 inches. They have an average thickness of 20.4 inches and a combined …

The Synthesis And Spectroscopic Properties Of Vanadium(Iii) Squarate Trihydrate, S. M. Condren, Hector O. Mcdonald

Chemistry Faculty Research & Creative Works

Vanadium(III) squarate trihydrate has been prepared; and the infrared, X-ray diffraction, and electronic spectra of the complex indicate that the central metal atom is in a slightly distorted octahedral field. A thermogravimetric study has shown that the complex loses three water molecules upon heating. A hydroxy-bridged, dimeric structure has been proposed from these data. © 1973, American Chemical Society. All rights reserved.

Synthesis Of Uranium Fluorosulfates And The Group Vi B Difluorophosphates, Larry Mccain Emme

Dissertations and Theses

Some reactions leading to several anhydrous Uranium fluorosulfates through the use of fluorosulfonic acid or peroxydisulfuryl di-fluoride have been studied. It was found that HS0F can oxidize uranium 3metal to the +4 state or the +2 state depending on the reaction conditions. The synthesis of the tan solid; U(S0₃F)₄ and the pale green solid thought to be U(S0₃F)₂ were prepared in this manner. It was found that S₂0₆F₂ can also oxidize uranium to yield the green solid U(S0₃F)₃. S₂0₆F₂ was …

La Colonisation De Quelques Grottes Du Jura Par Niphadobota Alpina Bezzi (Dipt. Tipulidae), M. J. Turquin

International Journal of Speleology

Three new localities of Niphadobota (=Chionea) alpina in the French southern Jura allow the author to state that this insect’s climatic requirements explain the biogeography of the species; the origin of the colonization of caves by this dipteran is considered.

Beobachtungen An Markierten Und Unmarkierten Köcherfliegen (Trichoptera) In Der Bärenhöhle Im Lonetal (Schwäbischer Jura), Klaus Dobat

International Journal of Speleology

1.The Bärenhöhle, one of the ten caves situated in the episodically water-bearing valley of the Lone (Swabian Jura), serves as summer quarters for the total of ten species of Trichoptera, most of which are Micropterna nycterobia and Stenophylax permistus. 2.Counts carried out in this cave from 1967-1972 and observations of flood and dry-periods of the Lone during the same years make evident that the number of Trichoptera flying into the cave seems to depend in a large measure on the seasonal activity of the creek: a steady flow of water makes the undisturbed development of larvae possible and results …

Recherches Sur Les Grégarines (Gregarinida: Stenophoridae) Du Diplopode Troglobie Typhloiulus Bureschi Verhoeff En Bulgarie, Vassil Golemansky, Dimitar Taschev

International Journal of Speleology

A study of the parasitic fauna, particularly the Gregarines, found in a troglobitic diplopod Typhloiulus bureschi Verhoeff, one of the Iulidae from Bulgarian caves is presented. Data on morphology and taxonomy of the Eugregarines are included. There is a description of a new species, Stenophora typhloiuli. This species is compared with other species of the genus Stenophora.

A New Troglohyphantes From Bulgarian Caves (Araneae, Linyphiidae), Ch. Deltshev

International Journal of Speleology

A new species Troglohyphantes drenskii is described, which was collected in the cave “Suchata pestera” near Velingrad, Bulgaria. Troglohyphantes drenskii n.sp. belongs to the group of T. orpheus and is related to T.salax and T.pademontanus.

Sur Un Nouvel Amphipode Souterrain De Bulgarie Niphargus Kochianus Melticensis N. Ssp., Dan Dancau, Stoitze Andreev

International Journal of Speleology

A new subspecies of Amphipode is described, being the first representative of the Niphargus kochianus group in Bulgaria. The new subspecies resembles N. k. tamanini Ruffo, N. k. petrosani Dobr. et Manolache, N. k. labacensis Sket, N. k minor Sket, for the maxille I having one single hair on the internal lobe and a single combed spine on the external lobe. However, it differs neatly from all other subspecies by the length of the nails on the dactyl and by the peculiar form and the chetotaxia of the telson.

Trichoniscidae Della Grotta Di Su Mannau, Sardegna Sub-Occidentale (Crustacea, Isopoda), Roberto Argano

International Journal of Speleology

Description of three eyeless and apigmented new species of Trichoniscidae which have been found in Su Mannau cave in Sardinia. Two of them belong to the genus Catalauniscus Vandel: Catalauniscus hirundinella n.sp. offering few relationships with the spanish species C. espanoli Vandel, and Catalauniscus puddui n.sp. which has also similar features to an iberian form, C. bolivari Arcangeli. The third (Scotoniscus janas n.sp.) belongs to the endemic genus Scotoniscus Racovitza, until now monospecific and represented by a series of subspecies from the Northern Pyrenees, all nearly related to the specific form S. macromelos Racovitza. The discovery of those three …

Fluorescent Dye Determination Of Groundwater Movement And Contamination In Permeable Rock Strata, Charles P. Giammona

International Journal of Speleology

A preliminary inquiry to the extent and boundaries of subterranean waterways within the Mystery Cave System was explored. Rhodamine WT dye in 500 ml quantities was used in fluormetry determinations of surface flow to ground water basins. A Turner Model 111 fluorometer was utilized for detection purposes powered by a portable 12 volt, 220 amp hour battery-inverter system. It was shown that water entered underground passageways through sinkholes or highly creviced limestone/dolomite rock strata and reappeared several kilometres downstream. The outflow appears in the form of “springs”. The possibility exists that contaminated surface water may seep through the soil for …

Observations Sur La Faune Aquatique Souterraine De Cuba, L. Botosaneanu

International Journal of Speleology

A short account on some achievements of the cubano-romanian biospeleological expeditions to Cuba in the study of the aquatic subterranean faunas. The following divisions of the aquatic subterranean realm are reviewed together with their most characteristic faunal elements: “guano pools” and rimstone pools in the vadose zone of the caves; underground streams; water table (and other) lakes in the caves; “pozzos” carved in the limestone, and “grietas” which are vertical clefts in the limestone of marine terraces, giving access to fresh- or to brackish water; the interstitial of the marine beaches; the underflow of running waters. At present, thorough biospeleological …

Le Deuxième Colloque International Sur Les Genres Niphargus Et Gammarus - Lyon, 1973 Compte-Rendu De Travail Pour Niphargus, R. Ginet

International Journal of Speleology

Following the First Colloquium held at Verona in 1969, it was planned to hold at Lyon in July, 1973, the Second International Colloquium dealing with the genus Niphargus and also with the genus Gammarus. As subject matter in discussions dealing with the first of these genera, the meeting was devoted mainly the balancing the various viewpoints (based on the European approach) and initiating a collective study of the systematics of these hypogean Amphipoda. The systematics are currently quite confused. Several modifications of the propositions of the Colloquium at Verona (published in 1972) were discussed. A third Colloquium, with the same …

Note Sulla Distribuzione Dei Trichoniscidae In Sardegna (Crustacea, Isopoda, Oniscoidea), Roberto Argano, Mauro Rampini

International Journal of Speleology

The study of the biogeography of the eight species of Isopoda Trichoniscidae from Sardegna brings to consider the faunistic relationships happened in the past between the island and the Pyrenees. Two of the species are eutroglophilous and rather widespread; the other six are troglobic and endemic to Sardinia. Five of the latter show strong affinity to Pyrenees forms. A detailed description is given of the distribution of the various species. This distribution makes possible some observations on the history of the fauna of the island.

Breeding And Fecundity In A Subterranean Mysid, Lepidomysis Longipes (Pillai And Mariamma), C. N. Nath

International Journal of Speleology

The hypogean mysid, Lepidomysis longipes has a breeding period extending from December to April with the peak period in March. A secondary breeding period appears in August and September. The females have low fecundity and carry a maximum of nine eggs. Development is delayed due to lack of nourishment in the environment. The mysids breed only once a year.

Considerazioni Sui Carabidi Carvernicoli Ed Engogei Dell'asia Minore (Coleoptera, Carabiae), Augusto Vigna Taglianti

International Journal of Speleology

The cavernicolous and endogeous Coleoptera Carabidae, actually (1972) known from the Anatolian peninsula (here considered together with Armenia, the Caucasus and the mountains of Lebanon), are examined and discussed. They belong to the tribes of Anillini, Trechini (Neotrechus, Aphaenops and Duvalius lines), Pterostichini, Molopini, Sphodrini. The cavernicolous and endogeous Anillini, Pterostichini and Sphodrini from this region have clear relations with the balkanic groups and may be considered as East-Mediterranean faunistic elements. On the contrary, the Trechini of the Neotrechus line are more related to the Caucasian groups, those of the so-called Aphaenops line are endemic of the Caucasus and of …

Ragni Delle Filippine, 1. Un Nuovo Althepus Cavernicolo Dell'isola Di Mindanao (Araneae, Ochyroceratidae), Paolo Marcello Brignoli

International Journal of Speleology

Althepus noonadanae n.sp. is described (female; male unknown; loc. typ.: Latuan Cave, Curuan district, Mindanao, Philippines); it can be distinguished from the other known species by the morphology of the chelicerae and of the female genitalia. It is not related to any of the very few described species. A key for the female Althepus is given.

A New Cavernicolous Species Of The Pseudoscorpion Genus Roncus L. Koch, 1873 (Neobisiidae, Pseudoscorpiones) From The Balkan Peninsula, Božidar P. M. Ćurčić

International Journal of Speleology

Roncus (Parablothrus) pljakici, a new species of cave living pseudoscorpions, is described from the cave ‘Pecina u selu Vrelo’ on Mt. Stara Planina, East Serbia. The problem of its taxonomic position in the subgenus is discussed. The new species is the first representative of Parablothrus to be found in Serbia. It seems possible that R. (P.) pljakici represents an endemic species, specialized for a cavernicolous way of living. The analogies of this and other species of the subgenus point to some similar phenomena which occur in other genera of Balkan false scorpions (Ćurčić 1972). In all these cases, a …

Xlix Contribution To The Knowledge Of The Amphipoda. On Three Niphargus Species (Fam. Gammaridae) From The Balkans, Gordan S. Karaman

International Journal of Speleology

Three Niphargus species from the Balkans are studied. Niphargus adbiptus, n. sp. is described from Ravanica cave in Serbia. Niphargus stygius ravanicanus S. Kar. 1943 from the same cave (Ravanica) is redescribed. N. valachicus Dobr. Man. 1933, is newly recorded from Bulgaria (Devnja).

Description Du Mâle De Mexistenasellus Parzefalli (Crustacea Isopoda Asellota Cavernicole Du Mexique) Et Observations Sur Cette Espèce, Guy Magniez

International Journal of Speleology

Description of the male of the Mexican cavernicolous Stenasellid Mexistenasellus parzefalli Magniez, 1972, from Huizache Cave, San-Luis Potosi State, Mexico. In the female with a brood pouch, the coxopodit of the maxilliped contains two provisional, oostegit-like plates, whereas the ovigerous female of european Stenasellids have only the inner one. This temporary sexual female character is known in other Isopods, such as the cavernicolous Caecosphaeroma burgundum Dollfus.

Les Populations Naturelles De Stanasellus Virei Dollfus (Crustacé Asellote Troglobie), Guy Magniez

International Journal of Speleology

Many cavernicolous and phreatic localities are known for the species Stenasellus virei. Some of these, which harbor a rather abundant population have been studied for several years. The endemic populations from permanent waters of some fossil karstic systems seem to have an abnormal composition. They include especially large individuals (juvenile stages being rare). They differ from the phreatic populations, which exhibit a normal distribution in size groups with a normal percentage of juveniles. These differences in the structure of populations may result from physical differences between the habitat in free waters of caves and in phreatic water, and from …

Feeding Efficiency In The Cave Salamander Haideotriton Wallacei, Stewart B. Peck

International Journal of Speleology

Selection for efficiency in food capture may be a dominant influence in the evolutionary biology of predaceous cave animals. A sample of 8 Haideotriton wallacei from a natural population contained 21 feeding boluses in their digestive tracts. Fourteen of these boluses contained food, demonstrating success in at least 67% of the feeding attempts.

Stratigraphic Comparison Of The Precambrian Wyman And Johnnie Formations In The Western Great Basin, California, Johnnie Nathan Moore

UNLV Theses, Dissertations, Professional Papers, and Capstones

The Precambrian Johnnie Formation in the Death Valley area and to the south is separable into two facies. The southern facies contains six distinct members: the transitional, quartzite, lower carbonate-bearing, siltstone, upper carbonate-bearing, and Rainstorm members. Dolomite, quartzite, and mudstone characterize the southern facies, as does the presence of the Johnnie oolite. To the north the Johnnie oolite pinches out and the amount of mudstone in the formation increases. The dominantly mudstone northern facies contains local gray limestone lenses closely similar to limestone in the Wyman Formation in the White-Inyo Mountains. Generally outcrops of the northern facies of the Johnnie …

A Study Of The Pulse-Height Response Of Silicon Surface-Barrier Detectors To High-Energy Heavy Ions, Gregory Dan Smith

Doctoral Dissertations

"The pulse-height defect (PHD) of high-energy heavy ions in silicon surface-barrier detectors can be divided into three components: (1) energy loss in the gold-surface layer, (2) a nuclear-stopping defect, and (3) a defect due to recombination of electron-hole pairs in the plasma created by the heavy ion. The plasma recombination portion of the PHD was the subject of this study using the variation of the PHD with (1) the angle of incidence of incoming heavy ions, and (2) changes in the detector bias. The Tandem Van de Graaff accelerator at Argonne National Laboratory was used to produce scattered beam ions …

Motions In Three-Space, Lovemore F. Mareya

All Graduate Theses, Dissertations, and Other Capstone Projects

The objective of this paper is to determine and verify formulae for finding images of points in three-dimensional space, for the following motions:

1. Translation
2. Reflection
3. Rotation

The transformation in two-dimensional space were reviewed and those methods, with appropriate refinements, extended to three-dimensional space.

Laser Scattering Measurements Of Droplet Growth In Binary Mixtures. Ii. H2o And Argon H2o And Helium, M. A. Viettit, Burton Schuster

Physics Faculty Research & Creative Works

Water droplet growth rates in a Wilson cloud chamber were measured in Ar-H2O and He-H2O media. These rates were determined in the size range 0.45-10.0 u.m by detection of oscillations in the intensity of polarized light from a He-Ne laser source scattered at 30° by the droplet population. Pressure and initial temperature were measured in the chamber for use in the computation of three droplet growth theories for comparison to experiment. Experiments were conducted in supersaturations ranging from 1.04 to 3.45.