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Articles 31 - 60 of 2472
Full-Text Articles in Physical Sciences and Mathematics
Probing The Intermolecular Hydrogen Bonding Of Water Molecules At The Ccl4/Water Interface In The Presence Of Charges Soluble Surfactant, D. E. Gragson, G. L. Richmond
Probing The Intermolecular Hydrogen Bonding Of Water Molecules At The Ccl4/Water Interface In The Presence Of Charges Soluble Surfactant, D. E. Gragson, G. L. Richmond
Chemistry and Biochemistry
The molecular structure and hydrogen bonding of water molecules at the CCl4/water interface in the presence of a charged soluble surfactant has been explored in this study using vibrational sum frequency generation. By examining OH stretching modes that are highly sensitive to the local hydrogen bonding environment it is found that water molecules at the CCl4/water interface both in the presence and absence of a charged soluble surfactant are predominantly in a tetrahedral arrangement much like the structure ofice. Isotopic dilution studies have been employed to further characterize this icelike interfacial structure. Ablueshift ofapproximately120 cm-1 …
Remark On The Potential Function Of The Linear Sigma Model, Joseph Schechter, David Delphenich
Remark On The Potential Function Of The Linear Sigma Model, Joseph Schechter, David Delphenich
Physics - All Scholarship
It is shown that the potential functions for the ordinary linear sigma model can be divided into two topographically different types depending on whether the quantity R\equiv (m_\sigma /m_\pi)^2 is greater than or less than nine. Since the Wigner-Weyl mode (R=1) and the Nambu-Goldstone mode (R=\infty belong to different regions, we speculate that this classification may provide a generalization to the broken symmetry situation, which could be convenient for roughly characterizing different possible applications of the model. It is noted that a more complicated potential does not so much change this picture as add different new regions.
Measurement Of The Decay Amplitudes And Branching Fractions Of B → J/Ψ K* And B → J/Ψ K Decays, C. P. Jessop, Kenneth A. Bloom, Cleo Collaboration
Measurement Of The Decay Amplitudes And Branching Fractions Of B → J/Ψ K* And B → J/Ψ K Decays, C. P. Jessop, Kenneth A. Bloom, Cleo Collaboration
Kenneth Bloom Publications
Using data taken with the CLEO II detector at the Cornell Electron Storage Ring, we present the first full angular analysis in the color-suppressed modes B0 → J/Ψ K *0and B0 → J/Ψ K*+. This leads to a complete determination of the decay amplitudes of these modes including the longitudinal polarization ΓL/Γ= 0.52 ± 0.07 ± 0.04 and the P wave component │P│2= 0.16 ± 0.08 ± 0.04. In addition, we update the branching fractions for B → J/Ψ K and B → J/Ψ K …
Stern-Gerlach Effect For Electron Beams, Herman Batelaan, Timothy J. Gay, J. J. Schwendiman
Stern-Gerlach Effect For Electron Beams, Herman Batelaan, Timothy J. Gay, J. J. Schwendiman
Timothy J. Gay Publications
The conflict between Bohr’s assertion that the magnetic moment of the electron cannot be measured with experiments based on the concept of classical trajectories, and the measurement of the magnetic moment of electrons in a modified Penning trap by Dehmelt et al. has led us to reevaluate other implications of Bohr’s assertion. We show that, contrary to the analysis of Bohr and Pauli, the assumption of classical trajectories in a Stern-Gerlach–like device can result in a high degree of spin separation for an electron beam. This effect may persist within a fully quantum-mechanical analysis. The magnetic fields considered are such …
Trends. Some Security Lessons From Kyoto, Ibpp Editor
Trends. Some Security Lessons From Kyoto, Ibpp Editor
International Bulletin of Political Psychology
The author discusses how "the environment" is no longer a fringe Issue championed by starry-eyed dreamers and psychodynamic deviants, and perennial misfits who have little understanding of or orientation to reality. In fact, the relevance of "the environment" for policies of political security has become quite significant.
Nucleotide Or Nucleoside Photoaffinity Compound Modified Antibodies, Methods For Their Manufacture And Use Thereof As Diagnostics And Therapeutics, Boyd E. Haley, Heinz Köhler, Krishnan Rajagopalan, Gabriela Pavlinkova
Nucleotide Or Nucleoside Photoaffinity Compound Modified Antibodies, Methods For Their Manufacture And Use Thereof As Diagnostics And Therapeutics, Boyd E. Haley, Heinz Köhler, Krishnan Rajagopalan, Gabriela Pavlinkova
Chemistry Faculty Patents
Sites on antibodies having affinity for photoaffinity compounds, in particular purine or azidopurine containing compounds are taught. These sites provide for the site-specific attachment of nucleotide photoaffinity compounds to antibodies, e.g., ATP- or GTP-analog photoaffinity compounds by photochemical means. These nucleotide photoaffinity compounds may additionally be attached to molecules having a desired therapeutic or diagnostic activity, and the resultant conjugates used as diagnostics or therapeutics.
Proton Nuclear Magnetic Resonance Investigation Of The [2fe-2s]1--Containing “Rieske-Type” Protein From Xanthobacter Strain Py2, Richard C. Holz, Frederick J. Small, Scott A. Ensign
Proton Nuclear Magnetic Resonance Investigation Of The [2fe-2s]1--Containing “Rieske-Type” Protein From Xanthobacter Strain Py2, Richard C. Holz, Frederick J. Small, Scott A. Ensign
Chemistry Faculty Research and Publications
Proton NMR spectra of the Rieske-type ferredoxin from Xanthobacter strain Py2 were recorded in both H2O and D2O buffered solutions at pH 7.2. Several well-resolved hyperfine-shifted 1H NMR signals were observed in the 90 to −20 ppm chemical shift range. Comparison of spectra recorded in H2O and D2O buffered solutions indicated that the signals at −11.4 (L) and −15.5 (M) ppm were solvent-exchangeable and thus were assigned to the two histidine Nε2H protons. The remaining observed signals were assigned based upon chemical shift, T1 values, and one-dimensional …
Water Current, Volume 29, No. 6, December 1997
Water Current, Volume 29, No. 6, December 1997
Water Current Newsletter
New Equipment Enhances Water Sciences Laboratory's Research Capabilities
From the Director: USGS/NIWR Cooperation, Joint Programming Increasing; NRI Budget Reductions
27th Water Conference Begins Three-Year Look at "Nebraska Water 2000"
Annual Seminar to Examine Interrelationship of Water, Native Grasslands and Wetlands
Pesticide Container Recycling Hits Six Year Peak
Audubon Launches State Office
Environmental Decision Making Conference
MidAmerica GIS Symposium Comes to Cornhusker Hotel in May
Symposium Proceedings Available from Great Plains Foundation
Water News Briefs
Tips on Water Conservation
Useful Resources
Source Water Protection Conference Coming to Dallas in April
UNL Faculty Bring Home ASAE Educational Blue Ribbons
Freezing Of Confined Water: A Bilayer Ice Phase In Hydrophobic Nanopores, Kenichiro Koga, Xiao Cheng Zeng, Hideki Tanaka
Freezing Of Confined Water: A Bilayer Ice Phase In Hydrophobic Nanopores, Kenichiro Koga, Xiao Cheng Zeng, Hideki Tanaka
Xiao Cheng Zeng Publications
Molecular dynamics simulations were performed to study the phase behavior of a thin film of water confined to a slit nanopore with smooth walls. A first-order water-to-ice freezing transition has been observed. The resulting ice, which is a crystal of bilayer consisting of rows of distorted hexagons, does not resemble any ice crystals found so far. The confined water contracts upon freezing when the confinement load is low ( ∼0.5 kbar) and expands when the load is high (10 kbar). The residual entropy of the bilayer ice can be calculated exactly, which is about half of the entropy of the …
Invariants Of Twist-Wise Flow Equivalence, Michael C. Sullivan
Invariants Of Twist-Wise Flow Equivalence, Michael C. Sullivan
Articles and Preprints
Twist-wise flow equivalence is a natural generalization of flow equivalence that takes account of twisting in the local stable manifold of the orbits of a flow. Here we announce the discovery of two new invariants in this category.
"Hands-On" Epicycles And Retrograde Motion, Matthew J. Moelter, Bernard A. Bates
"Hands-On" Epicycles And Retrograde Motion, Matthew J. Moelter, Bernard A. Bates
Physics
No abstract provided.
Data Assimilation Experiments In The Gulf Stream Region: How Useful Are Satellite-Derived Surface Data For Nowcasting The Subsurface Fields?, Tal Ezer, George L. Mellor
Data Assimilation Experiments In The Gulf Stream Region: How Useful Are Satellite-Derived Surface Data For Nowcasting The Subsurface Fields?, Tal Ezer, George L. Mellor
CCPO Publications
Satellite-derived surface data have become an important source of information for studies of the Gulf Stream system. The question of just how useful these datasets are for nowcasting the subsurface thermal fields, however, remains to be fully explored. Three types of surface data-sea surface temperature (SST), sea surface height (SSH), and Gulf Stream position (GSP)-are used here in a series of data assimilation experiments to test their usefulness when assimilated into a realistic primitive equation model. The U.S. Navy's analysis fields from the Optimal Thermal Interpolation System are used to simulate the surface data and to evaluate nowcast errors. Correlation …
The Marine Pleistocene Sediments Andn Paleogeography Of The Southern Thrace Coast, Mehmet Sakinç, Cenk Yaltirak
The Marine Pleistocene Sediments Andn Paleogeography Of The Southern Thrace Coast, Mehmet Sakinç, Cenk Yaltirak
Bulletin of the Mineral Research and Exploration
No abstract provided.
Si̇vasella Goekceni̇, A New Foraminifer Species Of Maastrichtian Of Southwest Malatya (Se Türki̇ye), Engin Meri̇ç, Nurdan İnan
Si̇vasella Goekceni̇, A New Foraminifer Species Of Maastrichtian Of Southwest Malatya (Se Türki̇ye), Engin Meri̇ç, Nurdan İnan
Bulletin of the Mineral Research and Exploration
No abstract provided.
Paleomagnetic Characteristics Of The Cenozoic Volcanics And Tectonic Evolution Of Thrace, M. Cengiz Tapirdamaz, Cenk Yaltirak
Paleomagnetic Characteristics Of The Cenozoic Volcanics And Tectonic Evolution Of Thrace, M. Cengiz Tapirdamaz, Cenk Yaltirak
Bulletin of the Mineral Research and Exploration
No abstract provided.
Stratigraphy And Tectonics Of The Pulur (Bayburt) Region In The Eastern Pontides, Aral I. Okay, Ömer Şahi̇ntürk, Hüseyin Yakar
Stratigraphy And Tectonics Of The Pulur (Bayburt) Region In The Eastern Pontides, Aral I. Okay, Ömer Şahi̇ntürk, Hüseyin Yakar
Bulletin of the Mineral Research and Exploration
No abstract provided.
Anatomy Of An Epithermal Mineralization: Mumcu (Balikesi̇r-Sindirgi), Inner-Western Anatolia, Turkey, Vedat Oygür
Anatomy Of An Epithermal Mineralization: Mumcu (Balikesi̇r-Sindirgi), Inner-Western Anatolia, Turkey, Vedat Oygür
Bulletin of the Mineral Research and Exploration
No abstract provided.
Interpretation Of The New Radiometric Age Determinations From The Tertiary And Quaternary Volcanic Rocks In Western Anatolia., Tuncay Ercan, Muharrem Satir, Dilek Sevi̇n, Ahmet Türkecan
Interpretation Of The New Radiometric Age Determinations From The Tertiary And Quaternary Volcanic Rocks In Western Anatolia., Tuncay Ercan, Muharrem Satir, Dilek Sevi̇n, Ahmet Türkecan
Bulletin of the Mineral Research and Exploration
No abstract provided.
Environmental Interpretation Of The Ostracoda Fauna From The Upper Miocene-Pliocene Sequence In The Karaman Region, Ümit Şafak
Bulletin of the Mineral Research and Exploration
No abstract provided.
Stratigraphy Of The Tectonostratigraphic Units Around Hadim-Bozkir-Taşkent Region (Northern Part Of The Central Taurides, Turkey), Necdet Özgül
Bulletin of the Mineral Research and Exploration
No abstract provided.
Geology Of The İdi̇ş Daği - Avanos Area (Nevşehi̇r - Central Anatolia), Serhat Köksal, M. Cemal Göncüoğlu
Geology Of The İdi̇ş Daği - Avanos Area (Nevşehi̇r - Central Anatolia), Serhat Köksal, M. Cemal Göncüoğlu
Bulletin of the Mineral Research and Exploration
No abstract provided.
Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 13, Number 10, December 1997, College Of Engineering And Computer Science, Wright State University
Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 13, Number 10, December 1997, College Of Engineering And Computer Science, Wright State University
BITs and PCs Newsletter
A twelve page newsletter created by the Wright State University College of Engineering and Computer Science that addresses the current affairs of the college.
The Determination Of The Crystal Structure Of 2-Methyl-2methylacrylyl-Cyclohexanone- (1,5)-Diaxaspiro Mononeopentyl By X-Ray Christallography, Joann Stevenson
The Determination Of The Crystal Structure Of 2-Methyl-2methylacrylyl-Cyclohexanone- (1,5)-Diaxaspiro Mononeopentyl By X-Ray Christallography, Joann Stevenson
McCabe Thesis Collection
Cyclohexanone, the central component of the compound 2-methyl-2-methylacrylylcyclohexanone-( l,5)-diaxaspiro mononeopentyl (see figure on page 2), serves as a solvent for oil in piston type aircraft and in natural and vinyl resins. It is used in the production of crude rubber, waxes, fats, shellac and DDT and other pesticides. Cyclohexanone also is a part of the production of adipic acid, which is used to prepare nylon and is used to prepare cyclohexanone resins via condensation to enhance the adhesive properties of products like floor paints.
Cyclohexanones are among the most accessible hydroaromatic derivatives and serve as the initial materials for the …
The Probe, Issue 183 - December 1997
The Probe, Issue 183 - December 1997
The Probe: Newsletter of the National Animal Damage Control Association
Contents: Animal Rights Revisited Calendar of Upcoming Events Reports From the 4th Annual Conference of The Wildlife Society Techniques for Managing Predation on Domestic Livestock and Big Game Animals Attitudes of Private and Public Land Managers in Wyoming Toward Beaver Grizzly Bear-Cattle Interactions on Two Cattle Allotments in Northwest Wyoming The Effects of Wolf Colonization on Coyote Behaviors Video Review: “Rob Erickson’s Live Trapping Urban Beaver, Vols. 1-2” Reed-Joseph Donates to NADCA Riot Police Quell Big Mac Attack Oregon Cougars on the Rise Confronting Anti-Trap Initiatives Current Status and Future Prospects for Mesurol as a Bird Repellent Prescribed Predation Management: …
Electron-Impact Total Ionization Cross Sections Of Ch And C2H2, Yong-Ki Kim, M. Asgar Ali, M. Eugene Rudd
Electron-Impact Total Ionization Cross Sections Of Ch And C2H2, Yong-Ki Kim, M. Asgar Ali, M. Eugene Rudd
M. Eugene Rudd Publications
Electron-impact total ionization cross sections for the CH radical and C2H2 (acetylene) have been calculated using the Binary-Encounter-Bethe (BEB) model. The BEB model combines the Mott cross section and the asymptotic form of the Bethe theory, and has been shown to generate reliable ionization cross sections for a large variety of molecules. The BEB cross sections for CH and C2H2 are in good agreement with the available experimental data from ionization thresholds to hundreds of eV in incident energies.
Shielding Strategies For Human Space Exploration Chapter 9: Hze Interactions In Biological Materials, M. Eugene Rudd
Shielding Strategies For Human Space Exploration Chapter 9: Hze Interactions In Biological Materials, M. Eugene Rudd
M. Eugene Rudd Publications
It is shown that most of the energy deposited by fast charged particles traversing matter occurs through ionization, i.e., the ejection of electrons during the atomic collision. The important mechanisms of ionization are identified and several methods of calculating the relevant differential and total cross sections are described. These include both classical and quantum theoretical methods and two semi-empirical models. The calculational methods were intended only for light, bare-ion projectiles, and care must be exercised in extending them to heavy, dressed projectiles.
34. Shunsuke Murahashi, Otto Vogl, Mikiharu Kamachi, Koichi Hatada
34. Shunsuke Murahashi, Otto Vogl, Mikiharu Kamachi, Koichi Hatada
Otto Vogl
No abstract provided.
Icris '96: Controlled Organization And Molecular Dynamics Of Polymers, Uji, Kyoto, Japan, Otto Vogl, Masaki Tsuji
Icris '96: Controlled Organization And Molecular Dynamics Of Polymers, Uji, Kyoto, Japan, Otto Vogl, Masaki Tsuji
Otto Vogl
No abstract provided.
Tidally Driven Residual Circulation In Shallow Estuaries With Lateral Depth Variation, Chunyan Li, James O'Donnell
Tidally Driven Residual Circulation In Shallow Estuaries With Lateral Depth Variation, Chunyan Li, James O'Donnell
CCPO Publications
Tidally driven residual circulation in shallow estuaries with lateral depth variation has been studied analytically using a two-dimensional, depth-averaged model. The solution is presented for a v-shaped channel. Exchange flow is found to be correlated with the topography. The magnitude of this exchange flow depends mainly on four parameters: the ratio between the minimum depth on the shoal and the maximum depth in the channel, the ratio between the tidal amplitude at the mouth and the mean depth, the ratio between the length of the estuary and the tidal wave length, and the ratio between the tidal timescale and the …
Joint Map Registration And High Resolution Image Estimation Using A Sequence Of Undersampled Images, Russell C. Hardie, Kenneth J. Barnard, Ernest E. Armstrong
Joint Map Registration And High Resolution Image Estimation Using A Sequence Of Undersampled Images, Russell C. Hardie, Kenneth J. Barnard, Ernest E. Armstrong
Electrical and Computer Engineering Faculty Publications
n many imaging systems, the detector array is not sufficiently dense to adequately sample the scene with the desired field of view. This is particularly true for many infrared focal plane arrays. Thus, the resulting images may be severely aliased. This paper examines a technique for estimating a high-resolution image, with reduced aliasing, from a sequence of undersampled frames. Several approaches to this problem have been investigated previously. However, in this paper a maximum a posteriori (MAP) framework for jointly estimating image registration parameters and the high-resolution image is presented. Several previous approaches have relied on knowing the registration parameters …