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Articles 1 - 30 of 2193
Full-Text Articles in Physical Sciences and Mathematics
Zastosowanie Modelowania Matematycznego Do Oceny Zanieczyszczenia Powietrza Powodowanego Przez Motoryzację, Marian Mazur, Robert Oleniacz, Bożena Biernat-Oleniacz
Zastosowanie Modelowania Matematycznego Do Oceny Zanieczyszczenia Powietrza Powodowanego Przez Motoryzację, Marian Mazur, Robert Oleniacz, Bożena Biernat-Oleniacz
Robert Oleniacz
The paper presents the results of an inventory of sources of air emissions from the city of Nowy Sacz (Poland) with regard to pollutant emissions from road transport, industrial processes, combustion plants and low-emissions from household furnaces. Particular attention has been devoted to assessing the impact of traffic on air quality in the city. Specified share of emissions from motor vehicles in the state of air pollution in the city center and its outskirts using the method of the atmospheric dispersion modeling.
English title: The use of mathematical modeling to assess air pollution caused by road transport.
Coyotes In The Southwest: Frontmatter
Coyotes In The Southwest: Frontmatter
Coyotes in the Southwest: A Compendium of Our Knowledge (Symposium Proceedings, 1995)
Includes:
Cover
Editors
Sponsors
Steering Committee
Acknowledgements
Printer
Coyotes In The Southwest: Table Of Contents
Coyotes In The Southwest: Table Of Contents
Coyotes in the Southwest: A Compendium of Our Knowledge (Symposium Proceedings, 1995)
Sections are:
Biology
Ecology
Perspectives
Management
Coyotes vs. Game Management
Coyotes vs. Livestock
Politics
Control Alternatives
Appendix
Novel Switching Phenomena In Ferroelectric Langmuir-Blodgett Films, A. Bune, Stephen Ducharme, V.M. Fridkin, L. Blinov, S. Palto, N. Petukhova, S. Yudin
Novel Switching Phenomena In Ferroelectric Langmuir-Blodgett Films, A. Bune, Stephen Ducharme, V.M. Fridkin, L. Blinov, S. Palto, N. Petukhova, S. Yudin
Stephen Ducharme Publications
We have established ferroelectric switching and observed a novel conductance switching phenomenon in ferroelectric polymer films fabricated by the Langmuir–Blodgett technique. The films consist of 10–30 monolayers (ML) of a copolymer of vinylidene fluoride (70%) and trifluoroethylene (30%), exhibiting a first-order ferroelectric phase transition at 70 °C and nearly rectangular ferroelectric and conductance hysteresis at 24 °C. Ferroelectric switching is accompanied by switching of the conductance by three orders of magnitude. A model describing this switching phenomenon is proposed.
Measured Stark Widths Of A 425,94 Nm Ari Spectral Line, Ljiljana Skuljan, Vladimir Milosavljevic, Aleksandar Sreckovic, Stevan Djenize
Measured Stark Widths Of A 425,94 Nm Ari Spectral Line, Ljiljana Skuljan, Vladimir Milosavljevic, Aleksandar Sreckovic, Stevan Djenize
Articles
No abstract provided.
Locally Optimally Emitting Clouds And The Origin Of Quasar Emission Lines, Jack Baldwin, Gary J. Ferland, Kirk Korista, Dima Verner
Locally Optimally Emitting Clouds And The Origin Of Quasar Emission Lines, Jack Baldwin, Gary J. Ferland, Kirk Korista, Dima Verner
Physics and Astronomy Faculty Publications
The similarity of quasar line spectra has been taken as an indication that the emission line clouds have preferred parameters, suggesting that the environment is subject to a fine-tuning process. We show here that the observed spectrum is a natural consequence of powerful selection effects. We computed a large grid of photoionization models covering the widest possible range of cloud gas density and distance from the central continuum source. For each line only a narrow range of density and distance from the continuum source results in maximum reprocessing efficiency, corresponding to "locally optimally emitting clouds" (LOCs). These parameters depend on …
A Simple Model To Estimate Atmospheric Concentrations Of Aerosol Chemical Species Based On Snow Core Chemistry At Summit, Greenland, M H. Bergin, C Davidson, Jack E. Dibb, J L. Jaffrezo, H D. Kuhns, S N. Pandis
A Simple Model To Estimate Atmospheric Concentrations Of Aerosol Chemical Species Based On Snow Core Chemistry At Summit, Greenland, M H. Bergin, C Davidson, Jack E. Dibb, J L. Jaffrezo, H D. Kuhns, S N. Pandis
Earth Sciences
A simple model is presented to estimate atmospheric concentrations of chemical species that exist primarily as aerosols based on snow core/ice core chemistry at Summit, Greenland. The model considers the processes of snow, fog, and dry deposition. The deposition parameters for each of the processes are estimated for SO42− and Ca2+ and are based on experiments conducted during the 1993 and 1994 summer field seasons. The seasonal mean atmospheric concentrations are estimated based on the deposition parameters and snow cores obtained during the field seasons. The ratios of the estimated seasonal mean airborne concentration divided by the …
Symposium Proceedings—Coyotes In The Southwest: A Compendium Of Our Knowledge [Complete Work, 185 Pp.], Dale Rollins, Calvin Richardson, Terry Blankenship, Kem Canon, Scott Henke
Symposium Proceedings—Coyotes In The Southwest: A Compendium Of Our Knowledge [Complete Work, 185 Pp.], Dale Rollins, Calvin Richardson, Terry Blankenship, Kem Canon, Scott Henke
Coyotes in the Southwest: A Compendium of Our Knowledge (Symposium Proceedings, 1995)
This is the complete volume, containing all 40+ articles and presentations. Each article is also hosted here separately under its individual title and authors.
Computer Assistance In Discovering Formulas And Theorems In System Engineering, J. W. Helton, Mark Stankus
Computer Assistance In Discovering Formulas And Theorems In System Engineering, J. W. Helton, Mark Stankus
Mathematics
If one reads a typical article on A,B,C,D systems in the control transactions, one finds that most of the algebra involved is non commutative rather than commutative. Thus, for symbolic computing to have much impact on linear systems research, one needs a program which will do non-commuting operations. Mathematica, Macsyma and Maple do not. We have a package, NCAlgebra, which runs under Mathematica which does the basic operations, block matrix manipulations and other things. The package might be seen as a competitor to a yellow pad. Like Mathematica the emphasis is on interaction with the program and flexibility.
The issue …
Multifragmentation In E/A=35 Mev Collisions: Evidence For A Coulomb Driven Breakup?, M. D'Agostino, G. J. Kunde, P. M. Milazzo, J. D. Diniu, M. Bruno, N. Colonna, M. L. Fiandri, C. K. Gelbke, T. Glasmacher, F. Gramegna, D. O. Handzy, W. C. Hsi, M. Huang, M. A. Lisa, W. G. Lynch, P. F. Mastinu, C. P. Montoya, A. Moroni, Graham F. Peaslee, L. Phair, R. Rui, C. Schwarz, M. B. Tsang, G. Vannini, C. Williams
Multifragmentation In E/A=35 Mev Collisions: Evidence For A Coulomb Driven Breakup?, M. D'Agostino, G. J. Kunde, P. M. Milazzo, J. D. Diniu, M. Bruno, N. Colonna, M. L. Fiandri, C. K. Gelbke, T. Glasmacher, F. Gramegna, D. O. Handzy, W. C. Hsi, M. Huang, M. A. Lisa, W. G. Lynch, P. F. Mastinu, C. P. Montoya, A. Moroni, Graham F. Peaslee, L. Phair, R. Rui, C. Schwarz, M. B. Tsang, G. Vannini, C. Williams
Faculty Publications
Multifragment disintegrations have been measured for central Au+Au collisions at EA=35 MeV. Fragment emission occurs predominantly at low center of mass energies of about EA≈5 MeV, consistent with a Coulomb dominated breakup of a single source. Mean fragment multiplicities of ⟨NIMF⟩≈10.8 are extracted after correction for the detection efficiency. The fragment charge distributions decrease much more gradually than expected from scaling laws recently applied to the extraction of critical exponents for the nuclear liquid-gas phase transition from nuclear collisions.
Obat Aborsi Majalengka Wa : 0812-1515-6620 Klinik Jual Obat Aborsi Cytotec Di Majalengka, Anis Inayati01
Obat Aborsi Majalengka Wa : 0812-1515-6620 Klinik Jual Obat Aborsi Cytotec Di Majalengka, Anis Inayati01
Jual Obat Aborsi Tuntas 3 Jam Langsung Gugur
Singular Vertices And The Triangulation Space Of The D-Sphere, Simon Catterall, G. Thorleifsson, John B. Kogut, R. Renken
Singular Vertices And The Triangulation Space Of The D-Sphere, Simon Catterall, G. Thorleifsson, John B. Kogut, R. Renken
Physics - All Scholarship
By a sequence of numerical experiments we demonstrate that generic triangulations of the D-sphere for D>3 contain one {\it singular} (D-3)-simplex. The mean number of elementary D-simplices sharing this simplex increases with the volume of the triangulation according to a simple power law. The lower dimension subsimplices associated with this (D-3)-simplex also show a singular behaviour. Possible consequences for the DT model of four-dimensional quantum gravity are discussed.
Nanoscale Oxide Patterns On Si (100) Surfaces, T. -C. Shen, C. Wang, J. W. Lyding, J. R. Tucker
Nanoscale Oxide Patterns On Si (100) Surfaces, T. -C. Shen, C. Wang, J. W. Lyding, J. R. Tucker
T. -C. Shen
Ultrathin oxide patterns of a linewidth of 50 Å have been created on Si(100)‐2×1 surfaces by a scanning tunneling microscope operating in ultrahigh vacuum. The oxide thickness is estimated to be 4–10 Å. The morphology and spectroscopy of the oxide region are obtained. Hydrogen passivation is used as an oxidation mask. The defects caused by oxidation in the passivated region before and after the hydrogen desorption are compared and discussed. The multistep silicon processings by an ultrahigh vacuum scanning tunneling micropscope is thus demonstrated.
Correlations Between Auditory‐Filter Shape Parameters Measured At Proximal Center Frequencies, Marc A. Fagelson, Craig A. Champlin
Correlations Between Auditory‐Filter Shape Parameters Measured At Proximal Center Frequencies, Marc A. Fagelson, Craig A. Champlin
Marc A. Fagelson
Water Current, Volume 27, No. 6, December 1995
Water Current, Volume 27, No. 6, December 1995
Water Current Newsletter
Buffer Strips Trap Contaminants
From the Director: Lack of Call of Proposals Sign of Politics at Work
Riparian Buffer Strips Prevent Pollution
Might Missouri Conference Topic
Manure Application Studied
Research Brief: A Multivariate Index Methodology for Landfill Site Characterization Using Geophysics and Geostatistics
Nebraska Water News
Guide for Sealing Wells Available from UNL
Symposium Focuses on Integrated Approach
Booklet Helps Find Water Information
Speaker Compares Public, Technical Views
Drijber Gets Into Microbial Communities
Dishrags Breeding Ground for Bacteria
Seminar Series to Present Views on Platte River Management
M-Isometric Transformations Of Hilbert Space, I, Jim Alger, Mark Stankus
M-Isometric Transformations Of Hilbert Space, I, Jim Alger, Mark Stankus
Mathematics
No abstract provided.
Broad Ne Viii Λ744 Emission From The Quasar Pg 1148+549, Fred Hamann, Joseph C. Shields, Gary J. Ferland, Kirk T. Korista
Broad Ne Viii Λ744 Emission From The Quasar Pg 1148+549, Fred Hamann, Joseph C. Shields, Gary J. Ferland, Kirk T. Korista
Physics and Astronomy Faculty Publications
We discuss the probable detection of broad Ne VIII λ774 emission from the zɛ = 0.978 quasar PG 1148+549, and we use spectral synthesis calculations to study the physical conditions in the line-forming gas. The theoretical predictions and the measured line wavelength both support Ne VIII λ774 as the most likely identification.
Our calculations show that Ne VIII λ774 forms in hotter and more highly ionized gas than previously recognized in the broad emission line region. If the gas is photoionized by a standard active galactic nucleus continuum, the observed Ne VIII equivalent width, the Ne VIII/O VI flux …
The Significance Of The Oso Condensate Project In The Nigerian Economy, I. P. Ojinnaka
The Significance Of The Oso Condensate Project In The Nigerian Economy, I. P. Ojinnaka
Bullion
This paper outlines the historical background and financing of the Oso condensate project, examines the benefits of the project in terms of revenue expectation, infrastructure development, employment and investment opportunities, benefit to the communities and owners of the project, as well as underline the potential constraints. For the ease of presentation, the paper is organised into sections and an introduction. Section I describes the features of the project while section II analyses the benefits. Section III outlines the potential constraints and section IV is summary and conclusion.
Information Engineering Facility (Ief) Computer Aided Software Engineering (Case) For Church Management System, Cynthia T. Dubose
Information Engineering Facility (Ief) Computer Aided Software Engineering (Case) For Church Management System, Cynthia T. Dubose
Electronic Dissertations and Theses
No abstract provided.
Geology Newsletter- 1995, Department Of Geology
Geology Newsletter- 1995, Department Of Geology
Geological and Environmental Sciences News
Vol. 1, No. 20
- Faculty News
- Awards and Scholarships
- Alumni/ Friends/ Former Faculty Notes
- Geology Development and Scholarship Donations
- New Alumni
The Probe, Issue 161 – December 1995
The Probe, Issue 161 – December 1995
The Probe: Newsletter of the National Animal Damage Control Association
Animal Activists Take Bear Issues to Idaho, Michigan, Massachusetts, and Washington
Canada Geese Almost "Get" Gingrich
Egrets Causing Health Hazards in Oklahoma
Pigeons Hitch a Ride In London
Book Review: Variations of the Flat Set, by Charles Dobbins. 1995. Sullivan Productions, Blue Creek, OH. 78 pages.
New Trapping Laws in Colorado
Optimal Survey Design For Community Intervention Evaluations: Cohort Or Cross-Sectional?, Paula Diehr
Optimal Survey Design For Community Intervention Evaluations: Cohort Or Cross-Sectional?, Paula Diehr
Paula Diehr
Community intervention evaluations that measure changes over time may conduct repeated cross-sectional surveys, follow a cohort of residents over time, or (often) use both designs. Each survey design has implications for precision and cost. To explore these issues, we assume that two waves of surveys are conducted, and that the goal is to estimate change in behavior for people who reside in the community at both times. Cohort designs are shown to provide more accurate estimates (in the sense of lower mean squared error) than cross-sectional estimates if (1) there is strong correlation over time in an individual's behavior at …
Croatian Symposium Of Chemistry And Macromolecular Chemistry, Otto Vogl, Zvonimir Janovic
Croatian Symposium Of Chemistry And Macromolecular Chemistry, Otto Vogl, Zvonimir Janovic
Otto Vogl
No abstract provided.
Polymer Science In Australia Iv. Universities In Victoria And Southern Australia, Otto Vogl, David Solomon, Ezio Rizzardo, Robert A. Shanks, David Williams
Polymer Science In Australia Iv. Universities In Victoria And Southern Australia, Otto Vogl, David Solomon, Ezio Rizzardo, Robert A. Shanks, David Williams
Otto Vogl
No abstract provided.
52. Bengt Ranby, Otto Vogl
Reconstruction Of Solar Irradiance Since 1610: Implications For Climate Cbange, Judith Lean, Juerg Beer, Raymond S. Bradley
Reconstruction Of Solar Irradiance Since 1610: Implications For Climate Cbange, Judith Lean, Juerg Beer, Raymond S. Bradley
Raymond S Bradley
Solar total and ultraviolet (UV) irradiances are reconstructed annually from J610 to the present. This epoch ~ludes the Maunder Minimmn of anomalously low solar activi1}' (circa 1645-1115) and the subsequent increase to the high levels of the present Modem Maximum. In this reconstruction, the Schwabe (II-year) irradiaoce cycle and a longer term Variability component are determined separately, based on contemporary. solar and stellar monitoring. The correlation of reconstructed solar irradiance and Northern Hemisphere (NIl) surface temperature is 0.86 in the pre-industrial period from 1610 to 1800, implying a predominant solar influence. Extending this correlation to the present suggests that solar …
Bulletin No. 34: Tidal Marshes Of Long Island Sound: Ecology, History And Restoration, Glenn D. Dreyer, William A. Niering
Bulletin No. 34: Tidal Marshes Of Long Island Sound: Ecology, History And Restoration, Glenn D. Dreyer, William A. Niering
Bulletins
No abstract provided.
Local Magnetic Properties Of Antiferromagnetic Febr2, J. Peloth, R. A. Brand, Takele Seda, M. M. Pereira De Azevedo, W. Kleeman, Ch. Binek, J. Kushauer, D. Bertrand
Local Magnetic Properties Of Antiferromagnetic Febr2, J. Peloth, R. A. Brand, Takele Seda, M. M. Pereira De Azevedo, W. Kleeman, Ch. Binek, J. Kushauer, D. Bertrand
Physics & Astronomy
The antiferromagnet FeBr2 has been studied by Mössbauer spectroscopy in external fields both in the metamagnetic region below the multicritical temperature TMCP and in the second-order transition region above. The local magnetization shows that the metamagnetic transition occurs by spin flips, as in simple models. However, in the second-order transition region, the local magnetization of the sublattice oriented antiparallel to the external field varies continuously but remains parallel to the c axis. This can only be understood if the external magnetic field induces strong transversal spin precession of the moments on the antiparallel sublattice. This shows that the …
Synthesis And Characterization Of A Water-Soluble Metallopeptide That Resembles A Parallel Beta-Pleated Sheet, Michael Y. Ogawa, Alexei B. Gretchikhine, Sunil-Datta Soni, Steven M. Davis
Synthesis And Characterization Of A Water-Soluble Metallopeptide That Resembles A Parallel Beta-Pleated Sheet, Michael Y. Ogawa, Alexei B. Gretchikhine, Sunil-Datta Soni, Steven M. Davis
Chemistry Faculty Publications
The title metallopeptide consists of two divalinyl peptides attached to the carboxylate groups of the ruthenium polypyridyl complex. [Ru(bpy)(2)L](2+): bpy = 2,2'-bipyridine; L = 3,5-dicarboxy-2,2'-bipyridine. The charged ruthenium complex is water soluble and is shown by variable temperature, and 2-D NMR to consist a parallel arrangement of interacting, extended peptide strands that ir reminiscent of the beta-sheet structure. Circular dichroism results support this assignment.
Simulations Between Programs As Cellular Automata, Howard A. Blair, Fred Dushin, Polar Humenn
Simulations Between Programs As Cellular Automata, Howard A. Blair, Fred Dushin, Polar Humenn
Electrical Engineering and Computer Science - Technical Reports
We present cellular automata on appropriate digraphs and show that any covered normal logic program is a cellular automaton. Seeing programs as cellular automata shifts attention from classes of Herbrand models to orbits of Herbrand interpretations. Orbits capture both the declarative, model-theoretic meaning of programs as well as their inferential behavior. Logically and intentionally different programs can produce orbits that simulate each other. Simple examples of such behavior are compellingly exhibited with space-time diagrams of the programs as cellular automata. Construing a program as a cellular automaton leads to a general method for simulating any covered program with a Horn …