Open Access. Powered by Scholars. Published by Universities.®
Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Earth Sciences (113)
- Environmental Sciences (103)
- Chemistry (85)
- Engineering (60)
- Physics (58)
-
- Geology (44)
- Water Resource Management (42)
- Environmental Health and Protection (37)
- Mathematics (32)
- Civil and Environmental Engineering (30)
- Life Sciences (25)
- Soil Science (24)
- Paleontology (20)
- Geomorphology (17)
- Sedimentology (16)
- Statistics and Probability (16)
- Education (14)
- Science and Mathematics Education (13)
- Applied Mathematics (12)
- Arts and Humanities (12)
- Energy Systems (12)
- History (12)
- History of Science, Technology, and Medicine (12)
- Hydrology (12)
- Mechanical Engineering (12)
- Oceanography and Atmospheric Sciences and Meteorology (12)
- Other Mechanical Engineering (12)
- United States History (12)
- Mineral Physics (11)
- Institution
-
- University of Nebraska - Lincoln (76)
- Utah State University (44)
- Missouri University of Science and Technology (41)
- Bulletin of the Mineral Research and Exploration (26)
- William & Mary (20)
-
- Union College (19)
- University of South Florida (18)
- Western Michigan University (16)
- University of New Mexico (14)
- Department of Primary Industries and Regional Development, Western Australia (11)
- University of North Dakota (11)
- Ouachita Baptist University (7)
- University of Kentucky (7)
- University of the Pacific (7)
- Bates College (6)
- Indian Statistical Institute (6)
- Loma Linda University (6)
- American University in Cairo (5)
- California Polytechnic State University, San Luis Obispo (5)
- Kutztown University (5)
- Selected Works (5)
- University of Arkansas, Fayetteville (5)
- Purdue University (4)
- South Dakota State University (4)
- University of Tennessee, Knoxville (4)
- Brigham Young University (3)
- Central Washington University (3)
- Ursinus College (3)
- Western Kentucky University (3)
- Eastern Illinois University (2)
- Keyword
-
- Mathematics (6)
- Chemistry (5)
- Nebraska (5)
- Pure sciences (5)
- Western Australia (5)
-
- Irrigation (4)
- Published Research Papers (4)
- Theorems (4)
- Water supply (4)
- Geology (3)
- Research and Technical Reports (3)
- Stratigraphic (3)
- 1967 (2)
- Absorption (2)
- Afterglow (Physics)<br />Mercury -- Spectra (2)
- Amines (2)
- Articles (2)
- Chemical analysis (2)
- Economic costs (2)
- Gas chromatography (2)
- Idaho (2)
- Lakes (2)
- Limnology (2)
- Malad range (2)
- Movement (2)
- Ord River region (W.A.) (2)
- Organic chemistry (2)
- P-Benzosemiquinone (2)
- Probability (2)
- Region (2)
- Publication
-
- Masters Theses (40)
- Proceedings of the 3rd Vertebrate Pest Conference (1967) (33)
- Reports (32)
- Honors Theses (27)
- Bulletin of the Mineral Research and Exploration (26)
-
- International Journal of Speleology (18)
- Dissertations, Theses, and Masters Projects (15)
- Theses and Dissertations (13)
- Nebraska Tractor Tests (12)
- All Graduate Theses and Dissertations, Spring 1920 to Summer 2023 (11)
- Journal of the Department of Agriculture, Western Australia, Series 4 (11)
- Doctoral Dissertations (10)
- Conservation and Survey Division (9)
- KWRRI Research Reports (7)
- University of the Pacific Theses and Dissertations (7)
- Doctoral Theses (6)
- Loma Linda University Electronic Theses, Dissertations & Projects (6)
- Walter Lawrance Papers (6)
- All Graduate Plan B and other Reports, Spring 1920 to Spring 2023 (5)
- Archived Theses and Dissertations (5)
- Bulletin of the University of Nebraska State Museum (5)
- Chemical and Biochemical Engineering Faculty Research & Creative Works (5)
- Green Revolution (5)
- Physics (5)
- Physics & Astronomy ETDs (5)
- Physics Faculty Research & Creative Works (5)
- William F. Trench (5)
- Department of Computer Science Technical Reports (4)
- Earth and Planetary Sciences ETDs (4)
- Electronic Theses and Dissertations (4)
- Publication Type
- File Type
Articles 1 - 30 of 413
Full-Text Articles in Physical Sciences and Mathematics
Threshold Order Of A Switching Function And Stochastic Dependence Of Inputs., T. Krishnan Dr.
Threshold Order Of A Switching Function And Stochastic Dependence Of Inputs., T. Krishnan Dr.
Doctoral Theses
This Ä‘insertation is being submitted to the Indian Statiatical Inatitute, in support of the author's application for the degree of Doctor of Philosophy. This diasertation enbodien the work carried out by the author at the Indian Statistieal Institute under the aupervision of frofensor C. R. Rso. le is grate ful to Professor Rao for his constant encouragenent and inspi- ration and for the facilities provided at the Institute.The main part of the results of Chapter 5 have already been ublished (20). Zhe resulte of Chapters 2 and 3 and of Chapter 4 &e being reviewed for publie cation. ReferRes of …
Hyperfine-Structure Separations, Nuclear Magnetic Moments, And Hyperfine-Structure Anomalies Of Gold-198 And Gold-199, Paul A. Vanden Bout, Vernon J. Ehlers, William A. Nierenberg, Howard A. Shugart
Hyperfine-Structure Separations, Nuclear Magnetic Moments, And Hyperfine-Structure Anomalies Of Gold-198 And Gold-199, Paul A. Vanden Bout, Vernon J. Ehlers, William A. Nierenberg, Howard A. Shugart
University Faculty Publications and Creative Works
We have measured the hyperfine-structure separations and nuclear magnetic moments of (2.70-day) Au198 and (3.15-day) Au199 in the S122 state, using the atomic-beam magnetic-resonance method. We also measured the ratios of the electronic g factor of gold to those of potassium and cesium. The results are, for Au198 (I=2), Δν=21450.7167(4) MHz, μI(uncorr)=+0.5842(4) nm; and for Au199 (I=32), Δν=10962.7227(3) MHz, μI(uncorr)=+0.2673(7) nm. The results for the g-factor ratios are: gJ(Au)gJ(K)=1.000504(2) and gJ(Au)gJ(Cs)=1.000381(2). These values yield the following hyperfine-structure anomalies: Δ198197=8.53(8)% and Δ199197=3.7(2)%. Second-order corrections to the hyperfine structure are shown to be negligible. The nuclear results are interpreted in terms of …
Synthesis And Properties Of Diorganomagnesium Compounds, Conrad William Kamienski
Synthesis And Properties Of Diorganomagnesium Compounds, Conrad William Kamienski
Doctoral Dissertations
Introduction: Although dialkylmagnesium compounds have been known for over a hundred years, relatively little effort has been directly expended on these reagents per se; much of what we know about magnesium alkyls has been an outgrowth of previous studies concerned with the nature of the Grignard reagent. Only recently has any effort been made to elaborate on methods for preparing these reagents, to determine carefully their physical and chemical properties, and to develop practical uses for these reagents. It has been the purpose of the present study to review the presently known methods of preparation of dialkylmagnesium compounds, to …
Strong-Coupled Piezoelectric Polaron, Wayne E. Tefft
Strong-Coupled Piezoelectric Polaron, Wayne E. Tefft
Physics Faculty Research & Creative Works
A semiclassical, variational calculation for the strong-coupled piezoelectric polaron gives the following results for the ground-state energy and polaron radius, respectively: U0=-0.47(m*/m) (κ2/ε)2eV, and R=3.5(ε/κ2) (m/m*)â ã where m* is the band effective mass, κ is the electromechanical coupling constant, and ε is the strain-free dielectric constant. The theory is expected to be valid when |U0| is larger than thermal energies and R is considerably larger than unit-cell dimensions. A calculation of the polaron effective mass, having a more limited region of validity, gives mp~m*[1+2|U0|/m*vs2], where vs is the velocity of sound. …
The Occurrence And Distribution Of Methane In The Marine Environment, Larry P. Atkinson, Francis A. Richards
The Occurrence And Distribution Of Methane In The Marine Environment, Larry P. Atkinson, Francis A. Richards
CCPO Publications
The distributions of methane dissolved in the sulfide-bearing waters of the Black Sea, the Cariaco Trench, and Lake Nitinat are reported. The gas was not detected in the oxygen-deficient water of the eastern tropical Pacific Ocean, in the Santa Barbara Basin, nor in the sulfide-bearing water of Saanich Inlet. Maximum concentrations observed were 70 μmole CH4/l., and the distribution tends to follow that of sulfide. The data indicate that methane is derived from organic compounds not containing nitrogen or phosphorus and that its formation is much slower than that of sulfide. The solubility coefficient in seawater (salinity = 40‰) is …
An Indirect Spectrophotometric Method For Expansion Of The Optimum Concentration Range, Henry David Mitchell
An Indirect Spectrophotometric Method For Expansion Of The Optimum Concentration Range, Henry David Mitchell
Masters Theses
No abstract provided.
The Evaluation Of Certain Serum Iron Analyses By Atomic Absorption Spectroscopy, James Allan Boersma
The Evaluation Of Certain Serum Iron Analyses By Atomic Absorption Spectroscopy, James Allan Boersma
Masters Theses
No abstract provided.
A Study Of The Removal Of Pesticides From Water, James David Whitehouse
A Study Of The Removal Of Pesticides From Water, James David Whitehouse
KWRRI Research Reports
The purpose of this study was to investigate some of the properties of pesticides as they exist in water, and to determine the effectiveness of several water treatment processes in the removal of pesticides from water. Among the pesticides investigated were malathion, DDT, aldrin, dieldrin, captan, benzene hexachloride (BHC), 2,4-D, and 2,4,5-T. The water treatment processes included aeration, chemical coagulation, adsorption on activated carbons and clays, and foam separation.
The removal of pesticides from water by aeration was found to be significant. Dieldrin was removed almost 100 percent, while aldrin, DDT, and BHC were removed to a lesser extent. 2, …
An Examination Of The Romberg Method For Numerical Integration, Water James Halpin
An Examination Of The Romberg Method For Numerical Integration, Water James Halpin
Mathematics & Statistics ETDs
INTRODUCTION
This paper will amount to an inquiry into the mathematical structure and properties of a matrix of approximate integration formulas due to Werner Romberg 1 which have found considerable favor in numerical analysis during the past decade. Like other devices for approximate integration the Romberg method has its origin in the exhaustion techniques developed by the Greeks for determining the areas of figures enclosed by lines in the plane. It is particularly closely associated with the scheme employed by Archimedes2 (circa 250 B.C.) for approximating the value of [3.14]. This involves a doubling process which is essentially the basis …
Test 969: Oliver 1950-T Diesel, Nebraska Tractor Test Lab
Test 969: Oliver 1950-T Diesel, Nebraska Tractor Test Lab
Nebraska Tractor Tests
No abstract provided.
Pyrolysis Kinetics Of Ethyl Nitrate, Betty Meihorng Lee
Pyrolysis Kinetics Of Ethyl Nitrate, Betty Meihorng Lee
Masters Theses
No abstract provided.
Water Quality Study Of Lake Mead, Dale A. Hoffman, Paul R. Tramutt, Frank C. Heller, Bureau Of Reclamation
Water Quality Study Of Lake Mead, Dale A. Hoffman, Paul R. Tramutt, Frank C. Heller, Bureau Of Reclamation
Publications (WR)
This report presents Lake Mead Water quality data obtained from 1964 to 1966. The effect of filling Lake Powell on the water quality of Lake Mead is evaluated. General limnological principles and the present limnology of Lake Mead are discussed. Lake Mead has a warm monomictic annual temperature cycle characterized by summer stratification, fall overturn leading into a continuous circulation throughout the winter; temperatures never fall below 39 deg F (4 deg C). During stratification, lower dissolved oxygen values were recorded in the thermocline than in the epilimnion and hypolimnion. Mineral content increases from the upper to the lower end …
Survival Probability In Dissociative Attachment, Joseph C.Y. Chen, Jerry Peacher
Survival Probability In Dissociative Attachment, Joseph C.Y. Chen, Jerry Peacher
Physics Faculty Research & Creative Works
The survival probability in dissociative attachment is investigated with special attention to the (e, H2 ) system. It is shown that the simple expression for the dissociative-attachment cross section, as given by the product of a capture cross section and a survival probability, is equivalent to the s -wave approximation for the g → g dissociative attachment. This expression, however, does not constitute an approximation for the g → u dissociative attachment, since the parity of the initial rotational states of H2 is always opposite to that of the relative angular momentum states of H and H- …
Test 967: International Farmall 656 Hydrostatic (Diesel), Nebraska Tractor Test Lab
Test 967: International Farmall 656 Hydrostatic (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 968: International Farmall 656 Hydrostatic (Gasoline), Nebraska Tractor Test Lab
Test 968: International Farmall 656 Hydrostatic (Gasoline), 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 …
A Study Of The Synthesis And Reactions Of Condensed Pyriadazines, Lorraine Marie Distefano
A Study Of The Synthesis And Reactions Of Condensed Pyriadazines, Lorraine Marie Distefano
Chemistry and Chemical Biology ETDs
A special interest in a nitramine rearrangement prompted the preparation of 1,4-diaminopyridazino [4,5-d] pyridazine and the nitration of this compound. Several reactions of the intermediates, which were synthesized en route to 1,4-diaminopyridazino [4,5-d] pyridazine, were studied. Strong evidence for the existence of keto-enol tautomerism was found in the case of 1,4-dihydroxypyridazino [4,5-d] pyridazine and its derivatives.
Some reactions of 5, 8-dichloropyrazino [2,3-d] pyridazine were studied with particular interest in the nucleophilic displacement of azides and in the nitration of 5,8-dianilinopyrazino [2,3-d] pyridazine.
The nitration of diaminophthalazine was also attempted in order to perform an acid catalyzed nitramine rearrangement from one …
Test 966: Allis-Chalmers 170 (Gasoline), Nebraska Tractor Test Lab
Test 966: Allis-Chalmers 170 (Gasoline), 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 964: Allis-Chalmers 180 (Diesel), Nebraska Tractor Test Lab
Test 964: Allis-Chalmers 180 (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 965: Allis-Chalmers 170 (Diesel), Nebraska Tractor Test Lab
Test 965: Allis-Chalmers 170 (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 …
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.
Dünyada Tabi̇i̇ Gazin Rolü, Muammer Çeti̇nçeli̇k
Dünyada Tabi̇i̇ Gazin Rolü, Muammer Çeti̇nçeli̇k
Bulletin of the Mineral Research and Exploration
No abstract provided.
Presence D, Olivier Monod
Presence D, Olivier Monod
Bulletin of the Mineral Research and Exploration
No abstract provided.
Donnees Nouvelles Sur Le Jurassique Et Le Cretace Inferieur Du Barla Dağ Au Sud De Seni̇rkent (Taurus De Pisidie, Turquie), Marcel Gutnic, Michel Moullade
Donnees Nouvelles Sur Le Jurassique Et Le Cretace Inferieur Du Barla Dağ Au Sud De Seni̇rkent (Taurus De Pisidie, Turquie), Marcel Gutnic, Michel Moullade
Bulletin of the Mineral Research and Exploration
No abstract provided.
Deux Études Biométriques Concernant Le Changement De Forme Chez Les Spores Trilètes, Eran Nakoman
Deux Études Biométriques Concernant Le Changement De Forme Chez Les Spores Trilètes, Eran Nakoman
Bulletin of the Mineral Research and Exploration
No abstract provided.
Contribution A L'Etude Geologique De La Region De Kaş (Vi̇layet D'Antalya), Carlo Pisoni
Contribution A L'Etude Geologique De La Region De Kaş (Vi̇layet D'Antalya), Carlo Pisoni
Bulletin of the Mineral Research and Exploration
No abstract provided.
A Propos De La Structure De La Paroi Des Nodosariida Et Description D'Un Nouveau Genre Alanyana Et De Quelques Nouvelles Especes Du Permien De Turquie, Tuncer Güvenç
Bulletin of the Mineral Research and Exploration
No abstract provided.
Une Coupe Stratigraphique Dans Le Paleozoique Superieur Et Le Mesozoique A L'Extremite Occidentale De La Chaine Sud-Anatolienne (Nord De Fethi̇ye), P. De Gragiansky, M. Lemoine, M. Lys, J. Sigal
Une Coupe Stratigraphique Dans Le Paleozoique Superieur Et Le Mesozoique A L'Extremite Occidentale De La Chaine Sud-Anatolienne (Nord De Fethi̇ye), P. De Gragiansky, M. Lemoine, M. Lys, J. Sigal
Bulletin of the Mineral Research and Exploration
No abstract provided.
Eocene - Oligocene Sedimentation In The Keşan Area, Sw Turkish Thrace (Preli̇mi̇nary Results), Sungu L.Gökçen
Eocene - Oligocene Sedimentation In The Keşan Area, Sw Turkish Thrace (Preli̇mi̇nary Results), Sungu L.Gökçen
Bulletin of the Mineral Research and Exploration
No abstract provided.
L.A. General Data, Walter A. Lawrance
Analytical Data, Walter A. Lawrance