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Articles 287311 - 287340 of 292830
Full-Text Articles in Physical Sciences and Mathematics
Bi̇r Barajci Jeologun Tecrübeleri̇ *, Edouard Parejas
Bi̇r Barajci Jeologun Tecrübeleri̇ *, Edouard Parejas
Bulletin of the Mineral Research and Exploration
No abstract provided.
Sur Quelques Mammiferes Fossiles (Dinotherium, Serridentinus, Dipoides) Du Tertiaire D'Anatolie Occidentale –Turquie Deuxi̇eme Parti̇e — Paläontologie, Fikret Ozansoy
Bulletin of the Mineral Research and Exploration
No abstract provided.
Resultats Essentiels De L'Etude De La Succession Faunique De La Region D'Ankara (Turquie) *, Fikret Ozansoy
Resultats Essentiels De L'Etude De La Succession Faunique De La Region D'Ankara (Turquie) *, Fikret Ozansoy
Bulletin of the Mineral Research and Exploration
No abstract provided.
Untersuchung Magnetischer Eigenschaften, Insbesondere Der Magnetisierungsrichtung, An Gesteinen Des Svionischen Leptitzuges Mittelschwedens (Bergslagen), Rolf E. Glitsch
Untersuchung Magnetischer Eigenschaften, Insbesondere Der Magnetisierungsrichtung, An Gesteinen Des Svionischen Leptitzuges Mittelschwedens (Bergslagen), Rolf E. Glitsch
Bulletin of the Mineral Research and Exploration
No abstract provided.
A Geological Study In The Karaburun Peninsula, Adnan Kalafatçioğlu
A Geological Study In The Karaburun Peninsula, Adnan Kalafatçioğlu
Bulletin of the Mineral Research and Exploration
No abstract provided.
Die Lagerstatte Lahanos Im Vi̇layet Gi̇resun An Der Türkischen Schwarzmeerküste, Alfred Pollak
Die Lagerstatte Lahanos Im Vi̇layet Gi̇resun An Der Türkischen Schwarzmeerküste, Alfred Pollak
Bulletin of the Mineral Research and Exploration
No abstract provided.
Das Anatolische Orogen Vom Standpunkt Der Undationstheorie, Karl Nebert
Das Anatolische Orogen Vom Standpunkt Der Undationstheorie, Karl Nebert
Bulletin of the Mineral Research and Exploration
No abstract provided.
Stratigraphie Der Gipsablagerungen Im Bereiche Von Si̇vas (Zentral - Anatolien), Fikret Kurtman
Stratigraphie Der Gipsablagerungen Im Bereiche Von Si̇vas (Zentral - Anatolien), Fikret Kurtman
Bulletin of the Mineral Research and Exploration
No abstract provided.
Geologie Des Gebietes Zwischen Si̇vas Und Di̇vri̇ği̇ Sowie Bemerkungen Über Die Gipsserie, Fikret Kurtman
Geologie Des Gebietes Zwischen Si̇vas Und Di̇vri̇ği̇ Sowie Bemerkungen Über Die Gipsserie, Fikret Kurtman
Bulletin of the Mineral Research and Exploration
No abstract provided.
Türki̇ye Krom Cevheri̇ Yataklarinda Yapilan Etüdlerden Öğrendi̇kleri̇mi̇z *, Hermann Borchert
Türki̇ye Krom Cevheri̇ Yataklarinda Yapilan Etüdlerden Öğrendi̇kleri̇mi̇z *, Hermann Borchert
Bulletin of the Mineral Research and Exploration
No abstract provided.
Buttressing Effect In 3, 3' -Disubstituted-2, 2' -Three-Carbon-Atom Bridged Biphenyls, Yunn Hui Chiang
Buttressing Effect In 3, 3' -Disubstituted-2, 2' -Three-Carbon-Atom Bridged Biphenyls, Yunn Hui Chiang
Masters Theses
Introduction
The configuration of biphenyl has been the subject of much investigation and many recent reviews (1, 5, 6, 7, 8, 17, 21, 22). Of particular interest has been the configuration of 2,2' -bridged biphenyl derivatives. The preparation of an optically active 2,2' -three-carbon-atom-bridged biphenyl having an ultraviolet absorption maximum at 250 mμ, has been recently described (14). Although the compound was easily racemized, this property requires that a non-planar configuration be assigned to this biphenyl (I). Furthermore, this ultraviolet spectra indicates that inter-ring conjugation must exist in the non-planar configuration.
A Thermodynamic Study Of Step-Wise Complex Formation In Several Aqueous Copper (Ii)-Amino Acid Systems, Vipin M. Kothari
A Thermodynamic Study Of Step-Wise Complex Formation In Several Aqueous Copper (Ii)-Amino Acid Systems, Vipin M. Kothari
Theses and Dissertations
pK_n values for step-wise dissociation of protons from the protonated ligands (glycine, α-amino isobutyric acid, sarcosine and theonine) were determined potentiometrically with a Beckman Model GS pH meter in aqueous solution at 10, 20, 30 and 40° C. Log K values for step-wise interaction of glycine, α-amino isobutyric acid, sarcosine and threonine with copper(II) ion were also determined potentiometrically with a pH meter at 10, 20, 30 and 40° C. The standard free energy of formation for the step-wise interaction of copper(II) with each of the above ligands was calculated from the values of log K. Enthalpy and entropy changes …
An Investigation Of Factors Relating To Turnover Among Nursing Personnel Of A Selected Hospital, Thelma I. Ogren
An Investigation Of Factors Relating To Turnover Among Nursing Personnel Of A Selected Hospital, Thelma I. Ogren
Loma Linda University Electronic Theses, Dissertations & Projects
The purpose of this study was to identify factors that contributed to the turnover among nursing personnel of a selected hospital in a large metropolitan city. It was felt that such a study would assist in the reduction of turnover among the nursing personnel.
Other similar studies revealed that reasons for turnover among hospital nursing personnel were due to low salaries, hours of work, work loads, communications, improper placement, poor supervision, and a lack of promotional opportunities. It was also found that the younger age group had a larger turnover rate than the older age group, that hospitals with schools …
4th Annual Rocky Mountain Spectroscopy Conference
4th Annual Rocky Mountain Spectroscopy Conference
Rocky Mountain Conference on Magnetic Resonance
Abstracts of papers presented at the 4th annual meeting of the Rocky Mountain Spectroscopy Conference, sponsored by the Rocky Mountain Section of the Society for Applied Spectroscopy. Held in Denver, Colorado, August 10-11, 1961.
A Study Of Catalytic Reactions On Semiconductors: Hydrogen Deuterium Exchange And Formic Acid Decomposition On Chemically-Doped Germanium, George Edward Moore
A Study Of Catalytic Reactions On Semiconductors: Hydrogen Deuterium Exchange And Formic Acid Decomposition On Chemically-Doped Germanium, George Edward Moore
Doctoral Dissertations
Summary: Rates and activation energies for the hydrogen-deuterium exchange and formic acid vapor decomposition were measured on a series of chemically-doped germanium catalyst over the temperature range 100° to 400°. The germanium catalyst were intrinsic, and n or p-type extrinsic semiconductors; the position of the Fermi level of the solid was located suitably on the forbidden energy gap.
Kinetic parameters of the exchange and decomposition reactions were related to the Fermi level (electronic chemical potential) of the solid. Their dependence suggested that the rate-limiting processes involved electronic charge shifts between adsorbate and semiconductor.
Two different rate processes appeared to …
Coulomb Excitation With Heavy Ions, Rogers Charles Ritter
Coulomb Excitation With Heavy Ions, Rogers Charles Ritter
Doctoral Dissertations
Summary: The work for this thesis began with a study, on the ORNL 200-kev Cockcroft-Walton, of the possible use of the radio frequency ion source for multiply charged heavy ion production. When the results of this seemed unfavorable for the intended research, a PIG type ion source was designed and tested. It was capable of supplying usable quantities of Ne3+ ions, and was installed and used in the ORNL 5.5 Mv Van de Graaff accelerator.
Multiply-charged components from the PIG source were not as copious as those from several larger PIG sources that had been reported as having been …
Competitive Catalytic Hydrogenation Of Benzene, Toluene, And The Polymethylbenzenes On Platinium, Charles Phillip Rader
Competitive Catalytic Hydrogenation Of Benzene, Toluene, And The Polymethylbenzenes On Platinium, Charles Phillip Rader
Doctoral Dissertations
Introduction: This investigation embraced a comparison of the relative rates of hydrogenation on platinum of benzene and several of its methyl-substituted derivatives with their relative strengths of adsorption on the active spots of the catalyst surface. It consisted of the determination of the rate of reduction of the individual hydrocarbons and a variety of their binary mixtures. Its ultimate goal was to aid in the elucidation of the mechanism by which the benzene nucleus accepts hydrogen on a platinum surface.
The Theoretical Analysis Of Vibrations Of Chain Molecules, Suc Kyuen Suh
The Theoretical Analysis Of Vibrations Of Chain Molecules, Suc Kyuen Suh
Doctoral Dissertations
Introduction: In this dissertation we shall be concerned with the vibrational spectra of large chain molecules.
Shellfish Resources Of Washington, Robert Grant Levens
Shellfish Resources Of Washington, Robert Grant Levens
Graduate Student Research Papers
This paper will explore the salt water shellfish resources of Washington State. Particular emphasis will be placed upon the Pacific and Olympia Oysters, the Dungeness Crab, the research being done at Quilcene, and the lesser varieties of shellfish, including shrimp and the hardshell species of clams. The latter includes the littleneck, butter, Manila, and geoduc clams. A major emphasis will be the commercial importance of the shellfish, but the sportsman and the expanding role of Washington as a summer recreation area will not be overlooked.
Silt Project, Colorado: Colorado River Storage Project, U.S. Department Of Agriculture
Silt Project, Colorado: Colorado River Storage Project, U.S. Department Of Agriculture
Elusive Documents
The purpose of this report is to present information regarding the soil capabilities for irrigation, the present and future land use and production pattern, the costs associated with on-farm irrigation development, prospective size and type of farm, direct agricultural benefits and probable farm incomes with proposed irrigation development for the Silt project. In addition to the agricultural phases, this report deals with the impacts of the project on the national forests and the relationship of watershed conditions to the project.
This report also is intended to aid the Bureau of Reclamation in developing their Definite Plan Report, and to provide …
Investigation Of The Platinum-Rich Portion Of The Platinum-Tantalum Phase Diagram, Bob Dean Browning
Investigation Of The Platinum-Rich Portion Of The Platinum-Tantalum Phase Diagram, Bob Dean Browning
Theses and Dissertations
The Pt-Ta binary system was investigated at two isotherms;1000°C and 1500°C, and at eleven alloy compositions in the range of 50 to 100 atomic percent platinum. The alloys were examined by x-ray diffraction and metallography. Three intermetallic compounds, Pt2Ta, Pt3Ta, and Pt4Ta were found to exist in this composition range. The Pt4Ta intermetallic appeared only at the 1500°C isotherm. Platinum dissolved tantalum substitutionally to 90 atomic percent at 1500 °C and to approximately 80 atomic percent at 1000 °C.
A Thermodynamic Study Of Complex Formation In Aqueous Solution.|Ni.|Pthe Hg(Ii)-, Zn(Ii)-, Cd(Ii)-, Ag(I)-Serine Systems.|Nii.|Pthe Hg(Ii)-, Zn(Ii)-, Cd(Ii)-, In(Iii)- Thioglycollic Acid System :|Ba Study Of The Effect Of D[Pi]-D[Pi] Bonding On These Complexes, Marriner Lee Morrell
Theses and Dissertations
Thermodynamic equilibrium constants were obtained potentiometrically using a Beckman pH meter for metal-serine and metal-thioglycolloc acid complexes to study the thermodynamic properties of the complexes and the effect of dπ - dπ bonding on the equilibrium constants. The following calculations were made: 1. The stepwise dissociation of protons from serine at 10, 20, 30, and 40°C and the stepwise dissociation of protons from thioglycollic acid at 20, 30, and 40°C. 2. The thermodynamic formation constants for Zn(II), Cd(II), Hg(II), and Ag(I) with serine at 10, 20, 30, and 40°C and at two ionic strengths. 3. The thermodynamic formation constants for …
The Influence Of Temperature And Some Other Factors On The Biological And Nonbiological Oxidation Of Chalcopyrite, Pyrite And Copper Sulfide, Ezra Revier Palmer
The Influence Of Temperature And Some Other Factors On The Biological And Nonbiological Oxidation Of Chalcopyrite, Pyrite And Copper Sulfide, Ezra Revier Palmer
Theses and Dissertations
The purpose of this study was: (1) to find the effect of temperature on the wet oxidation of chalcopyrite, pyrite, and copper sulfide over the biological and nonbiological range; (2) to determine the influence of ferrous and ferric iron and free oxygen(air) on the oxidation. The sulfide minerals studied were oxidized over a range of temperatures between 25° to 75° C. The optimum biological oxidation occurred near 35° C. The nonbiological oxidation was very slow at low temperatures but increased with increasing temperature. The effect of solutions used in leaching the various sulfides over the temperature range differred. A synthetic …
Hardness And Moisture Content Of Wheat Kernels, Robert Katz, N. D. Collins, A. B. Cardwell
Hardness And Moisture Content Of Wheat Kernels, Robert Katz, N. D. Collins, A. B. Cardwell
Robert Katz Publications
The hardness of kernel sections of hard red winter and soft white winter wheat and durum wheat decreased with increasing moisture content. Small variations in hardness with variety and test plot location were detected.
Field Conference On The Tertiary And Pleistocene Of Western Nebraska (Guide Book For The Ninth Field Conference Of The Society Of Vertebrate Paleontology), C. Bertrand Schultz, Thompson M. Stout, Charles H. Falkenbach, Lloyd G. Tanner, Harold J. Cook, Alvin Leonard Lugn
Field Conference On The Tertiary And Pleistocene Of Western Nebraska (Guide Book For The Ninth Field Conference Of The Society Of Vertebrate Paleontology), C. Bertrand Schultz, Thompson M. Stout, Charles H. Falkenbach, Lloyd G. Tanner, Harold J. Cook, Alvin Leonard Lugn
Department of Earth and Atmospheric Sciences: Faculty Publications
This Field Conference is scheduled for five days, July 31-August 3 (main excursion) and August 4 (post-conference excursion), 1961. Its purpose is to consider recent work and problems in stratigraphy and vertebrate paleontology concerned with deposits ranging in age from Oligocene through Pleistocene, in western Nebraska. The Guide Book is the Ninth issued by sponsoring institutions for the Society of Vertebrate Paleontology (the others having been published in 1941, 1947, 1948, 1950, 1951, 1'953, 1956, and 1958). It thus commemorates the 20th Anniversary of the First Field Conference of the Society, as well as the 90th Anniversary of the establishment …
Perfection Of The Lattice Of Dislocation-Free Silicon, Studied By The Lattice-Constant And Density Method, Martin E. Straumanis, Pierre Borgeaud, William Joseph James
Perfection Of The Lattice Of Dislocation-Free Silicon, Studied By The Lattice-Constant And Density Method, Martin E. Straumanis, Pierre Borgeaud, William Joseph James
Materials Science and Engineering Faculty Research & Creative Works
The lattice-constant and density method revealed that a high-purity silicon crystal free of dislocations has a perfect lattice without an excess of vacant sites or interstitials (n′=8.0000 4) within the limits of error, in agreement with the results obtained with the decoration method. The lattice constant of vacuum heated silicon powder of semiconductor purity was 5.43070±0.00004 A; that of the nonheat-treated powder was 5.43081 A at 25°C. The constants determined from crystal chips by the rotating crystal method were lower: between 5.43028-5.43048 A at 25°C. As the constants of each series of measurements could be reproduced very well (s=±0.00004 A), …
Basic Data Report Lower Cedar River Drainage Basin, Nebraska, J.B. Hyland
Basic Data Report Lower Cedar River Drainage Basin, Nebraska, J.B. Hyland
Conservation and Survey Division
No abstract provided.
An Investigation Of The Isotopic Exchange Of Arsenic Atoms Between Arsenic(Iii) And Arsenic(V) In Aqueous Hydrochloric Acid Solutions, Lewis L. Anderson
An Investigation Of The Isotopic Exchange Of Arsenic Atoms Between Arsenic(Iii) And Arsenic(V) In Aqueous Hydrochloric Acid Solutions, Lewis L. Anderson
Chemistry and Chemical Biology ETDs
A spectrophotometric investigation was initiated in order to provide additional evidence for the existence of chemically nonequivalent species of arsenic(V) in 10.9 f hydrochloric acid solution.
Test 799: John Deere 2010 Ru Diesel, Nebraska Tractor Test Lab
Test 799: John Deere 2010 Ru Diesel, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …
Test 798: John Deere 1010 C Diesel, Nebraska Tractor Test Lab
Test 798: John Deere 1010 C Diesel, Nebraska Tractor Test Lab
Nebraska Tractor Tests
No abstract provided.