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Articles 20791 - 20820 of 21971
Full-Text Articles in Physical Sciences and Mathematics
[(Co)H(Pph3)2-Arachno-Osb3h8], Nigam Rath, J. Bould, L. Barton
[(Co)H(Pph3)2-Arachno-Osb3h8], Nigam Rath, J. Bould, L. Barton
Nigam Rath
Purchasing Power Parity, Unit Roots And Dynamic Structure, Douglas G. Steigerwald
Purchasing Power Parity, Unit Roots And Dynamic Structure, Douglas G. Steigerwald
Douglas G. Steigerwald
Recent studies of puchasing power parity (PPP) account for the possible presence of unit roots in nominal exchange rates and relative price indicies by applying standard unit-root tests to real exchange rates, which are ratios of nominal exchange rates and relative price indicies. These studies occasionally find evidence of PPP but, as a whole, the evidence is not definitive. Standard unit-root tests impose a restrictive dynamic structure between nominal exchange rates and relative price indicies. I specify and estimate a generalized dynamic structure. I reject the dynamic restrictions implicit in standard unit-root tests of PPP, and find stronger evidence of …
Achieving Balance In Software Engineering Curricula, Tim Comber, Bruce Lo, Richard Watson
Achieving Balance In Software Engineering Curricula, Tim Comber, Bruce Lo, Richard Watson
Tim Comber
Achieving balance is an issue that faces all curriculum designers. The complexity of the software process demands a pluralistic approach to systems development. This pluralism must also be reflected in the education and training of future software engineers. How can we integrate the diverse views into a unified curriculum framework? How can we cover all topics that are deemed essential for the discipline. We must balance specialised software engineering topics with fundamental topics in computer science and we must also balance the variety of software engineering topics amongst themselves within the relatively short three-year undergraduate curriculum. Very often, what is …
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.
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
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
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 …
Back To Basics: Statistical Analysis Of Reliability, Maintainability And Supportability Data, Caroline Lubert
Back To Basics: Statistical Analysis Of Reliability, Maintainability And Supportability Data, Caroline Lubert
Caroline P Lubert
No abstract provided.
The Effect Of Availability Of Shared Strategic Support Resources On System Availability, Caroline Lubert
The Effect Of Availability Of Shared Strategic Support Resources On System Availability, Caroline Lubert
Caroline P Lubert
No abstract provided.
Pion Fusion In Peripheral Pp Collisions, Alec Schramm, Burndt Muller
Pion Fusion In Peripheral Pp Collisions, Alec Schramm, Burndt Muller
Alec J Schramm
We estimate the cross section for quasielastic double pion exchange in high energy proton-proton collisions. Total and elastic ππ cross sections are calculated in an equivalent pion approximation, with pion-baryon vertices taken from chiral perturbation theory.
Application Of Polarization Modulation Infrared Reflection Absorption Spectrscopy To Study The In Situ Structure Of Electrodes Modified With Alkanethiol, Mark Anderson
Mark R. Anderson
No abstract is currently available.
53. Takeo Saegusa, Otto Vogl
Studies Of The Role Of Interfacial Molecular Structure To Adhesive Interaction, Cynthia Kraft, Mark Anderson
Studies Of The Role Of Interfacial Molecular Structure To Adhesive Interaction, Cynthia Kraft, Mark Anderson
Mark R. Anderson
No abstract is currently available.
Electrochemical And Infrared Spectroscopic Study Of Electrodes Modified By Alkoxyalkanethiols, Jimin Huang, Mark Anderson
Electrochemical And Infrared Spectroscopic Study Of Electrodes Modified By Alkoxyalkanethiols, Jimin Huang, Mark Anderson
Mark R. Anderson
No abstract is currently available.
1.Jpg, Acce Lere
1.Jpg, Acce Lere
acce lere
Variation In Lightness Of White Oak Dimension Stock, Douglas D. Stokke, Anton D. Pugel, John E. Phelps
Variation In Lightness Of White Oak Dimension Stock, Douglas D. Stokke, Anton D. Pugel, John E. Phelps
Douglas D. Stokke
The objectives of this research were to generate a set of sample parameters for the lightness of planed white oak dimension stock, to investigate the effect of grain angle on lightness values, and to determine the level of sampling needed to color match white oak dimension stock on the basis of lightness or darkness as quantified by the parameter L* (psychometric lightness). This information is important when used to determine the feasibility of low-cost portable instruments for evaluating color in an edge-glued hardwood panel production setting. Color measurements were obtained with a portable spectrophotometer interfaced with a notebook computer. The …
Extended Molecular Gas Distribution In Mrk 273 And Merger-Luminosity Evolution, Min S. Yun, N Z. Scoville
Extended Molecular Gas Distribution In Mrk 273 And Merger-Luminosity Evolution, Min S. Yun, N Z. Scoville
Min S. Yun
We present the first interferometric measurement of CO emission (θ ~ 2'') from the ultraluminous infrared galaxy Mrk 273. A total H2 mass of 3.6 × 1010 Msun is inferred from the CO observations, half of which belongs to an extended component with deconvolved size 5.1 × 2.5 kpc. In addition, an unresolved molecular gas complex is found to be coincident with the optical nucleus. The inferred H2 mass, size (R ~ 380 pc), and mean surface mass density (ΣH2 ≥ 4 × 104 Msun pc-3) of this complex, as well as the IR luminosity, are very similar to those …
54. Burkart Philipp, Otto Vogl, Ch. Wandrey
55. Hermann Janeschitz-Kriegl, Otto Vogl, Anton Schausberger
55. Hermann Janeschitz-Kriegl, Otto Vogl, Anton Schausberger
Otto Vogl
No abstract provided.
The ‘Applied Ethno-Botanical Research Approach’ To Biodiversity Conservation: The Madagascar Example, Nat Quansah
The ‘Applied Ethno-Botanical Research Approach’ To Biodiversity Conservation: The Madagascar Example, Nat Quansah
Nat Quansah
No abstract provided.
Integrated Health Care Development., Nat Quansah
Trajectory Mapping And Applications To Data From The Upper Atmosphere Research Satellite, Gary A. Morris, Mark R. Schoeberl, Lynn C. Sparling, Paul A. Newman, Leslie R. Lait, Lee Elson, Joe Waters, Robert A. Suttie, Aidan Roche, Jack Kumer, James M. Russell Iii
Trajectory Mapping And Applications To Data From The Upper Atmosphere Research Satellite, Gary A. Morris, Mark R. Schoeberl, Lynn C. Sparling, Paul A. Newman, Leslie R. Lait, Lee Elson, Joe Waters, Robert A. Suttie, Aidan Roche, Jack Kumer, James M. Russell Iii
Gary A. Morris
The problem of creating synoptic maps from asynoptically gathered trace gas data has prompted the development of a number of schemes. Most notable among these schemes are the Kalman filter, the Salby-Fourier technique, and constituent reconstruction. This paper explores a new technique called "trajectory mapping." Trajectory mapping creates synoptic maps from asynoptically gathered data by advecting measurements backward or forward in time using analyzed wind fields. A significant portion of this work is devoted to an analysis of errors in synoptic trajectory maps associated with the calculation of individual parcel trajectories. In particular, we have considered (1) calculational errors; (2) …
Origin Of The 〈11/20〉 Atomic Short-Range Order In Au-Rich Au-Fe Alloys, M. F. Ling, J. B. Staunton, Duane D. Johnson, F. J. Pinski
Origin Of The 〈11/20〉 Atomic Short-Range Order In Au-Rich Au-Fe Alloys, M. F. Ling, J. B. Staunton, Duane D. Johnson, F. J. Pinski
Duane D. Johnson
We have calculated the atomic short-range order (ASRO) and paramagnetic susceptibility in high-temperature, chemically disordered Au75Fe25 and Au90Fe10, using a density-functional-based, electronic-structure method. For both alloys, we obtain 〈11/20〉-type ASRO, in excellent agreement with experiments performed on samples that have been fast quenched from high temperature. We also identify the underlying electronic mechanism responsible for this unusual ordering behavior. During annealing at high temperatures, we suggest that aligning local moments via an external magnetic field will produce interesting AuFe alloys with 〈100〉-type ASRO.
56. Sir Geoffrey Allan, Otto Vogl, Shigeko Suzuki
Why The Study Of Mathematics Is One Of The Liberal Arts, David Bressoud
Why The Study Of Mathematics Is One Of The Liberal Arts, David Bressoud
David Bressoud
No abstract provided.