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Articles 291601 - 291630 of 302451
Full-Text Articles in Physical Sciences and Mathematics
Publications Of The Mineral Research And Exploration Institute Of Turkey, - -
Publications Of The Mineral Research And Exploration Institute Of Turkey, - -
Bulletin of the Mineral Research and Exploration
No abstract provided.
Ayaş İçmece Ve Kaplicasinin Jeoloji̇-Hi̇drojeoloji̇ Etüdü, Baki Cani̇k
Ayaş İçmece Ve Kaplicasinin Jeoloji̇-Hi̇drojeoloji̇ Etüdü, Baki Cani̇k
Bulletin of the Mineral Research and Exploration
No abstract provided.
The Economic Impact Of Beaver Lake Reservoir: A Cost Benefit Study, Don R. Market
The Economic Impact Of Beaver Lake Reservoir: A Cost Benefit Study, Don R. Market
Technical Reports
This study was undertaken to determine the impact of Beaver Lake Reservoir on four contiguous Arkansas counties. Analysis of economic data indicated that lake related personal income in the area has, since the project was completed, been about 2.5 percent higher than it would have been had the lake not been constructed. The greatest impact has been associated with the counties having the largest share of the shore line. In the aggregate, however, the most significant cause of economic growth in the area has been associated with growth of manufacturing employment. Also the relative economic position of each of the …
An Indo Investigation Of The Structure And Bonding Of Acetylacetone And Trifluoroacetylacetone, Mark S. Gordon, Robert D. Koob
An Indo Investigation Of The Structure And Bonding Of Acetylacetone And Trifluoroacetylacetone, Mark S. Gordon, Robert D. Koob
Mark S. Gordon
The energies of the enol forms of acetylacetone (ACAC) and trifluoroacetylacetone (TFA) have been minimized with respect to all structural parameters using the INDO molecular orbital theory. The internal hydrogen for enol ACAC is found to be symmetrically arranged between the two oxygens with an OHO angle of 152 o and an OH bond length of 1.174 A. Fluorine substitution to produce the electronically asymmetric molecule TFA causes only a slight asymmetry in the position of the internally bonded hydrogen. In both molecules this hydrogen is located in a well-defined single potential energy minimum. Electron density is increased on the …
Seasonal Climatic Fluctuations On Baffin Island During The Period Of Instrumental Records, Raymond S. Bradley
Seasonal Climatic Fluctuations On Baffin Island During The Period Of Instrumental Records, Raymond S. Bradley
Raymond S Bradley
Temperature and precipitation records for Baffin Island are examined on a seasonal basis for the last 40 to 50 years. Accumulation season temperatures (September to May) during the late 1960s were similar to those which prevailed 30 to 40 years ago. Ablation season temperatures (June, July, August) during the same period were cooler than for at least 30 years. Precipitation variations showed much less spatial coherence, but during the last 10 to 15 years there have been marked increases, mostly during winter months. These increases, accompanied by cooler summers and warmer winters, have led to increased glacierization of the area. …
Terminal Talk - The Wofford Connection - September 1973, Wofford College Computer Center
Terminal Talk - The Wofford Connection - September 1973, Wofford College Computer Center
Terminal Talk
No abstract provided.
Case Studies In Systems Chemistry, George Fleck
Case Studies In Systems Chemistry, George Fleck
Open Educational Resources: Textbooks
This publication was produced as a teaching tool for college chemistry.The book is a text for a computer-based unit on the chemistry of acid-base titrations, and is designed for use with FORTRAN or BASIC.computer systems, and with a programmable electronic calculator, in a variety of educational settings. The text attempts to present computer programs that are relatively free of reliance on specialized large computer systems programs. The case-study approach presented is highly research and laboratory oriented. Similar subject matter is conventionally taught in most introductory college chemistry courses, but this text material attempts greater depth of instruction through utilization of …
Parallel Algorithms For Adaptive Quadrature - Convergence, John R. Rice
Parallel Algorithms For Adaptive Quadrature - Convergence, John R. Rice
Department of Computer Science Technical Reports
No abstract provided.
Recovering Individual Data In The Presence Of Group And Individual Effects, Gudmund R. Iversen
Recovering Individual Data In The Presence Of Group And Individual Effects, Gudmund R. Iversen
Mathematics & Statistics Faculty Works
The ecological fallacy of relating variables on the group level, when the individual-level relationship is desired, can only be avoided by using individual-level data. This paper gives some conditions for occasions when individual-level data can successfully be recovered from grouped data. Such a recovery is illustrated using data on urban or rural residence and participation or not in the labor force as an example. The conditions are given in terms of the distinction between individual-and group-level effects of one variable on another. Recovering individual data, on the one hand, and the study of individual and group-level effects, on the other …
Lattice Dynamics Of A Rigid-Ion Model For Gadolinium Molybdate, L. L. Boyer, John R. Hardy
Lattice Dynamics Of A Rigid-Ion Model For Gadolinium Molybdate, L. L. Boyer, John R. Hardy
John R. Hardy Papers
Results of lattice-dynamical calculations are presented which support the view that the ferroelectric phase transition in gadolinium molybdate (GMO) arises from the softening and ultimate instability of a doubly degenerate zone-edge mode of the high-temperature paraelectric phase. We have used a rigid-ion model in which the short-range force constants are obtained from a detailed knowledge of the crystal structure together with the conditions imposed by the requirement that the crystal must be in static equilibrium under the combined influence of both Coulomb and short-range forces. Our results show that this type of approach is very useful when one is dealing …
Magnetic Interactions And High-Field Magnetization In Dilute Magnetic Alloys , J.M. Franz, David J. Sellmyer
Magnetic Interactions And High-Field Magnetization In Dilute Magnetic Alloys , J.M. Franz, David J. Sellmyer
David Sellmyer Publications
Magnetic interactions have been investigated in Cu(Mn) and Cu(Fe) alloys with concentrations ranging from several hundred to several thousand ppm. In each system two sets of alloys were prepared in different ways to test for sensitivity to structrual modifications. In the Cu(Mn) alloys there was very little difference in magnetic properties of the two sets of alloys which is consistent with the expectation that the Cu(Mn) alloys form good random solid solutions. The magnetic properties were compared with the recent mean-random-field theory of Klein in the low-temperature limit. It was found that the theory is able to explain the concentration …
Minimum Cost Design Of Water Distribution Systems, Don J. Wood, C. O. Charles
Minimum Cost Design Of Water Distribution Systems, Don J. Wood, C. O. Charles
KWRRI Research Reports
The objective of this study was to develop the analytical tools and procedures for minimum cost design of water distribution systems. Both analog and digital means of carrying out pressure and flow calculations were developed. As a result of this effort, digital programs for pressure and flow calculations in water distribution systems were written and have been widely distributed to practicing engineers. One procedure is based on a direct solution of the basic system equations using a linearization scheme and has several advantages over conventional techniques such as the Hardy Cross method. These include avoiding the need to initially balance …
High Magnetic Field Behavior Of Iron Impurities In Chromium, Richard B. Frankel, N. A. Blum
High Magnetic Field Behavior Of Iron Impurities In Chromium, Richard B. Frankel, N. A. Blum
Physics
Mössbauer measurements in 57Fe in dilute FeCr alloys in external magnetic fields up to 140 kOe are presented. The magnetic hyperfine interactions are compared with results obtained by Herbert, Clark and Wilson and are discussed in terms of a model due to Housley and Dash.
Über Den Schieferton Mit Halobia Der Halbinsel Kocaeli̇, Ülker Yurttaş-Özdemi̇r
Über Den Schieferton Mit Halobia Der Halbinsel Kocaeli̇, Ülker Yurttaş-Özdemi̇r
Bulletin of the Mineral Research and Exploration
No abstract provided.
New Hydrous Magnesium-Borate Minerals In Turkey: Kurnakovite, Inderite, Inderborite, Orhan Baysal
New Hydrous Magnesium-Borate Minerals In Turkey: Kurnakovite, Inderite, Inderborite, Orhan Baysal
Bulletin of the Mineral Research and Exploration
No abstract provided.
New Geological Observations In The Area West Of Antalya Bay, Fuat Baykal, Adnan Kalafatçioğlu
New Geological Observations In The Area West Of Antalya Bay, Fuat Baykal, Adnan Kalafatçioğlu
Bulletin of the Mineral Research and Exploration
No abstract provided.
Une Nouvelle Espece De Gazella De Sinap Moyen, İbrahim Tekkaya
Une Nouvelle Espece De Gazella De Sinap Moyen, İbrahim Tekkaya
Bulletin of the Mineral Research and Exploration
No abstract provided.
The Prairie Naturalist Volume 5, No.3. September 1973
The Prairie Naturalist Volume 5, No.3. September 1973
The Prairie Naturalist
PRELIMINARY LIST OF NATURAL AREAS IN NORTH DAKOTA ▪ Harold A. Kantrud
BREEDING BIRD POPULATIONS OF RIVERINE FORESTS IN EASTERN MONTANA ▪ Roger L. Kroodsma
Geologic And Tectonic Structure Of The Si̇vas-Hafi̇k-Zara And İmranli Region*, Fikret Kurtman
Geologic And Tectonic Structure Of The Si̇vas-Hafi̇k-Zara And İmranli Region*, Fikret Kurtman
Bulletin of the Mineral Research and Exploration
No abstract provided.
Uniformitarian Principle, Richard G. Hodgson
Specification And Design Of An Information System Using Computer Aided Analysis, J. F. Nunamaker
Specification And Design Of An Information System Using Computer Aided Analysis, J. F. Nunamaker
Department of Computer Science Technical Reports
No abstract provided.
The Role Of Mannosyl-Phosphoryl-Dihydropolyisoprenol In The Synthesis Of Mammalian Glycoproteins, John W. Baynes, An-Fei Hsu, Edward C. Heath
The Role Of Mannosyl-Phosphoryl-Dihydropolyisoprenol In The Synthesis Of Mammalian Glycoproteins, John W. Baynes, An-Fei Hsu, Edward C. Heath
Faculty Publications
A mouse myeloma tumor was used as a model system to study the biochemical steps involved in the incorporation of mannose into glycoproteins. This tumor, MOPC-46B, synthesizes a K-type immunoglobulin light chain (K-46) which is a glycoprotein with a single oligosaccharide side chain containing mannose as one of its constituent sugars. MOPC-46B microsomal preparations contain enzymes which transfer mannose from the sugar nucleotide, GDPmannose, to endogenous lipid and protein acceptors. Formation of the mannolipid proceeds by the reversible transfer of mannose from GDP-mannose to an endogenous phospholipid. The mannolipid was purified and characterized by chemical methods and mass spectrometry as …
15th Annual Rocky Mountain Spectroscopy Conference
15th Annual Rocky Mountain Spectroscopy Conference
Rocky Mountain Conference on Magnetic Resonance
Program and abstracts from the 15th 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 20-21, 1973.
Synthetic Analogs Of The Active Sites Of Iron-Sulfur Proteins. Structure And Properties Of Bis[O-Xylyldithiolato-Μ2-Sulfidoferrate(Iii)], An Analog Of The 2fe-2s Proteins, J. J. Mayerle, Richard B. Frankel, R. H. Holm, James A. Ibers, W. D. Phillips, J. F. Weiher
Synthetic Analogs Of The Active Sites Of Iron-Sulfur Proteins. Structure And Properties Of Bis[O-Xylyldithiolato-Μ2-Sulfidoferrate(Iii)], An Analog Of The 2fe-2s Proteins, J. J. Mayerle, Richard B. Frankel, R. H. Holm, James A. Ibers, W. D. Phillips, J. F. Weiher
Physics
The synthetic analog approach has been applied to a clarification of the active sites of 2Fe-2S* proteins. The compound (Et4N)2[FeS(SCH2)2C6H4]2, derived from o-xylyl-α,α′-dithiol, has been prepared and its structure has been determined by x-ray diffraction. The centrosymmetric anion contains two tetrahedrally coordinated ferric ions bridged by two sulfide ions and separated by 2.70 Å. Comparison of electronic, Mössbauer, and proton magnetic resonance spectra and magnetic susceptibility of the anion with the corresponding properties of the oxidized forms of the proteins reveals …
Water Resources News, Volume 5, No. 8, August 1973
Water Resources News, Volume 5, No. 8, August 1973
Water Current Newsletter
From the Desk of the Director
Underground Dam Provides Water Supply
Northern Great Plains Resource Program Meetings Held
Russell Train Heads EPA
Warren Fairchild New Director of Water Resources Council
New Department Proposed
Backlog of Water Projects
National Commission Short Sighted on Water Needs
New Discharge Permits for Feedlots
Fiscal Year 1974 Title II Programs Announced
Spectral Irradiance In Nebraska Reservoirs And A New Instrument For Its Measurement, Gary D. Uphoff
Spectral Irradiance In Nebraska Reservoirs And A New Instrument For Its Measurement, Gary D. Uphoff
School of Natural Resources: Dissertations, Theses, and Student Research
No abstract provided.
A Study Of Decompiling Machine Language Into High-Level Machine Independent Languages, Barron Cornelius Housel
A Study Of Decompiling Machine Language Into High-Level Machine Independent Languages, Barron Cornelius Housel
Department of Computer Science Technical Reports
No abstract provided.
Thermodynamic And Electrochemical Studies Of Niobium In Molten Fluorides And Chloroaluminates, Gann Ting
Thermodynamic And Electrochemical Studies Of Niobium In Molten Fluorides And Chloroaluminates, Gann Ting
Doctoral Dissertations
The oxide chemistry of niobium(V) has been studied in molten LiF-BeF2 mixtures. The stoichiometry of an oxygen-containing niobium(V) species (NbO2F) has been established in molten Li2BeF4 from the heterogeneous equilibrations of NiNb2o6 and NiO with the melt containing NiF2, the equilibrium quotient for the reaction was determined. The equilibrium quotient for the heterogeneous reaction of Nb2O5 and BeO with molten LiF-BeF2 mixtures (67-33 and 52-48 mole %) was also determined, and the effect of the melt composition on the solubility of Nb2O5 …
The Internal Chemical Shift. A Key To Bonding In Aromatic Molecules. I. Internal Shift Correlations, Donald W. Beistel, Holger E. Chen, P. J. Fryatt
The Internal Chemical Shift. A Key To Bonding In Aromatic Molecules. I. Internal Shift Correlations, Donald W. Beistel, Holger E. Chen, P. J. Fryatt
Chemistry Faculty Research & Creative Works
The study of proton shift behavior in nine families of disubstituted benzenes has provided quantitative correlations of internal and meta shifts among all families. The equations of correlation are useful in the prediction of shifts to an error of 0.015 ppm. The studies demonstrate shift additivity for the 4-substituted halobenzenes and suggest a chain rule relationship for substituent effects in those compounds. For that reason, previous theories of substituent interactions involving inductive and resonance contributors appear incorrect when applied to proton shift data. In decreasing order of up field shift at the ortho protons the substituents studied include N(CH3)2, NH2, …
On Hamiltonian - Connected Graphs, James E. Williamson
On Hamiltonian - Connected Graphs, James E. Williamson
Dissertations
No abstract provided.