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Articles 31 - 60 of 147
Full-Text Articles in Physical Sciences and Mathematics
The Hanle Effect As A Diagnostic Of Magnetic Fields In Stellar Envelopes Iv. Application To Polarized P Cygni Wind Lines., R. Ignace, K. H. Nordsieck, J. P. Cassinelli
The Hanle Effect As A Diagnostic Of Magnetic Fields In Stellar Envelopes Iv. Application To Polarized P Cygni Wind Lines., R. Ignace, K. H. Nordsieck, J. P. Cassinelli
Richard Ignace
The Hanle effect has been proposed as a new diagnostic of circumstellar magnetic fields for early-type stars, for which it is sensitive to field strengths in the 1-300 G range. In this paper we compute the polarized P-Cygni line profiles that result from the Hanle effect. For modeling the polarization, we employ a variant of the ``last scattering approximation''. For cases in which the Sobolev optical depths are greater than unity, the emergent line intensity is assumed to be unpolarized; while for smaller optical depths, the Stokes source functions for the Hanle effect with optically thin line scattering are used. …
Ws-Net: A Petri-Net Based Specification Model For Web Services, Jia Zhang, Carl Chang, Jen-Yao Chung, Seong Kim
Ws-Net: A Petri-Net Based Specification Model For Web Services, Jia Zhang, Carl Chang, Jen-Yao Chung, Seong Kim
Jia Zhang
No abstract provided.
Wind Shear, Christopher Roman
Wind Shear, Christopher Roman
Christopher N. Roman
Article that appeared in Sail magazine (ISSN: 0036-2700).
Assisting Seller Pricing Strategy Selection For Electronic Auction, Jia Zhang, Ning Zhang, Jen-Yao Chung
Assisting Seller Pricing Strategy Selection For Electronic Auction, Jia Zhang, Ning Zhang, Jen-Yao Chung
Jia Zhang
No abstract provided.
Ab Initio And 1H Nmr Study Of The Zn(Ii) Complexes Of A Nido- And A Closo-Carboranylporphyrin, Petia Bobadova-Parvanova, Yuko Oku, Anura Wickramasinghe, Randall W. Hall, Graca H. Vicente
Ab Initio And 1H Nmr Study Of The Zn(Ii) Complexes Of A Nido- And A Closo-Carboranylporphyrin, Petia Bobadova-Parvanova, Yuko Oku, Anura Wickramasinghe, Randall W. Hall, Graca H. Vicente
Randall W. Hall
Ester Type Banana-Shaped Liquid Crystalline Monomers: Synthesis And Physical Properties, Katalin Fodor-Csorba, Aniko Vajda, Antal Jakli, Christian Slugovc, Gregor Trimmel, Dietrich Demus, Eszter Gacz-Baitz, Sandor Holly, Giancarlo Galli
Ester Type Banana-Shaped Liquid Crystalline Monomers: Synthesis And Physical Properties, Katalin Fodor-Csorba, Aniko Vajda, Antal Jakli, Christian Slugovc, Gregor Trimmel, Dietrich Demus, Eszter Gacz-Baitz, Sandor Holly, Giancarlo Galli
Antal Jakli
New ester-type banana (bent-shaped) monomers, 1,3-phenylene bis[4'-(alken-1-yloxy)-biphenyl-4-carboxylate] s Ia - Vb, with different substituent(s) on the central phenyl ring (H, CH3, Cl or NO2) and alkenyl tails in the side arms ( decenyl or undecenyl) were prepared. The analogues IIIa - IVb with 4-chloro- or 4,6-dichloro-substituents exhibited a nematic phase, while Va, Vb with 2-nitro-substituent showed a B-7 phase at relatively low temperature. All the compounds were stable, no degradation or polymerization was observed under applied electric fields or heat treatments. Electro-hydrodynamic instabilities were observed in the nematic phase of each sample. In the B-7 phase of Vb there was …
Constraining The Exhumation And Burial History Of The Safod Pilot Hole With Apatite Fission Track And (U-Th)/He Thermochronometry, Ann Blythe, M D’Alessio, R Bürgmann
Constraining The Exhumation And Burial History Of The Safod Pilot Hole With Apatite Fission Track And (U-Th)/He Thermochronometry, Ann Blythe, M D’Alessio, R Bürgmann
Ann Blythe
[1] The San Andreas Fault Observatory at Depth (SAFOD) pilot hole traverses the upper 2 km of a site 1.8 km west of the San Andreas fault (SAF) near Parkfield, California. In order to evaluate the burial and exhumation history of the site and its relationship to the kinematics and mechanics of the SAF, we use 15 apatite fission-track (FT) and 5 (U-Th)/He analyses from pilot hole samples to document their thermal history. Sample ages decrease with depth: FT and (U-Th)/He ages range from ∼60 and ∼31 Ma, respectively, in the upper 800 m of the hole to ∼3 and …
Bounding The Firing Synchronization Problem On A Ring, André Berthiaume, Todd Bittner, Ljubomir Perković, Amber Settle, Janos Simon
Bounding The Firing Synchronization Problem On A Ring, André Berthiaume, Todd Bittner, Ljubomir Perković, Amber Settle, Janos Simon
Amber Settle
Investigation Of New Chelation Ion Chromatography Procedure To Determine The Surface Composition Of Powdered Metal Oxide Samples In The Solid State., B. Peebles, Michael Setter
Investigation Of New Chelation Ion Chromatography Procedure To Determine The Surface Composition Of Powdered Metal Oxide Samples In The Solid State., B. Peebles, Michael Setter
Michael P. Setter
Numerous tests have been conducted on the feasibility of characterizing the surfaces of metal oxide powders using HPLC. An in-line filter housing was modified to serve as a sample chamber to replace the sample loop. A gradient pump was used to gradually increase eluent acidity to find the conditions at which the surface of a metal oxide powder began to dissolve. The theoretical masses of surface monolayers of metal oxide powders were compared with the experimentally determined masses of dissolved material thought to be from the surface to test whether surface and bulk dissolution phenomena in acidic conditions are separable …
Waiting To Inhale: The Demographics Of Toxic Air Release Facilities In 21st-Century California, Manuel Pastor, James Sadd, Rachel Morello-Frosch
Waiting To Inhale: The Demographics Of Toxic Air Release Facilities In 21st-Century California, Manuel Pastor, James Sadd, Rachel Morello-Frosch
James Sadd
We examine the spatial distribution of toxic air releases and residential demographics in California using 2000 Census data and coeval information from the Federal Toxic Release Inventory for evidence of disproportionate exposure. Methods. We use spatial analysis using GIS, and multivariate regression analysis, including ordered and multinomial logit regressions, in our study. Results. Analytical results suggest a pattern of disproportionate exposure based on race, with the disparity most severe for Latinos, which holds in a series of multivariate regressions, including attempts to test for varying levels of pollution risk and to control for spatial dependence. Conclusions. The study corroborates earlier …
Application Of Fuzzy Logic To System Reliability, Invited Paper, Caroline Lubert
Application Of Fuzzy Logic To System Reliability, Invited Paper, Caroline Lubert
Caroline P Lubert
No abstract provided.
Relationships Between Computer Skills And Technostress Levels: How Does This Affect Me?, Sonya Shepherd
Relationships Between Computer Skills And Technostress Levels: How Does This Affect Me?, Sonya Shepherd
Sonya S. Gaither
No abstract provided.
A Dunking Bird Of The Second Kind, Nadine Abraham, Peter Palffy-Muhoray
A Dunking Bird Of The Second Kind, Nadine Abraham, Peter Palffy-Muhoray
Peter Palffy-Muhoray
The conventional dunking bird is a heat engine that relies on the temperature difference between the head and the tail of the bird for its operation. We describe a new type of dunking bird that is not a heat engine, but one that directly uses the chemical potential difference between liquid water and its vapor.
Drafting A Career In Sports: Determining Underclassmen College Players’ Stock In The Nba Draft, Byron J. Gajewski, Todd Bishop
Drafting A Career In Sports: Determining Underclassmen College Players’ Stock In The Nba Draft, Byron J. Gajewski, Todd Bishop
Byron J Gajewski
No abstract provided.
Rotational Analysis Of Ftir Spectra From Cigarette Smoke.Pdf, Alan Ford, William A. Burns, Scott Reeve
Rotational Analysis Of Ftir Spectra From Cigarette Smoke.Pdf, Alan Ford, William A. Burns, Scott Reeve
Scott Reeve
No abstract provided.
Food Based Approaches For A Healthy Nutrition In Africa, Mamoudou Hama Dicko
Food Based Approaches For A Healthy Nutrition In Africa, Mamoudou Hama Dicko
Pr. Mamoudou H. DICKO, PhD
The latest estimates of the FAO demonstrate the problems of the fight against hunger. These problems are manifested by the ever-increasing number of chronically undernourished people worldwide. Their numbers during the 1999-2001 period were estimated at about 840 million of which 798 million live in developing countries. Sub-Saharan Africa alone represented 198 million of those. In this part of Africa the prevalence of undernourishment ranges from 5-34%, causing growth retardation and insufficient weight gain among one third of the children under five years of age and resulting in a mortality of 5-15% among these children. Malnutrition resulting from undernourishment is …
Studies Toward Understanding The Relationship Between Molecular Structure And Macroscopic Properties Of Interfaces, Mark Anderson
Studies Toward Understanding The Relationship Between Molecular Structure And Macroscopic Properties Of Interfaces, Mark Anderson
Mark R. Anderson
No abstract is currently available.
Optimization Of Protocrystalline Silicon P-Type Layers For Amorphous Silicon N-I-P Solar Cells, G. M. Ferreira, Chi Chen, R. J. Koval, Joshua M. Pearce, C. R. Wronski, R. W. Collins
Optimization Of Protocrystalline Silicon P-Type Layers For Amorphous Silicon N-I-P Solar Cells, G. M. Ferreira, Chi Chen, R. J. Koval, Joshua M. Pearce, C. R. Wronski, R. W. Collins
Joshua M. Pearce
Application Of A Mickens Finite-Difference Scheme To The Cylindrical Bratu-Gelfand Problem, Ron Buckmire
Application Of A Mickens Finite-Difference Scheme To The Cylindrical Bratu-Gelfand Problem, Ron Buckmire
Ron Buckmire
No abstract provided.
Prediction Of Radiation Pneumonitis By Dose-Volume Histogram Parameters In Lung Cancer--A Systematic Review, George Rodrigues, Michael Lock, David D'Souza, Edward Yu, Jake Van Dyk
Prediction Of Radiation Pneumonitis By Dose-Volume Histogram Parameters In Lung Cancer--A Systematic Review, George Rodrigues, Michael Lock, David D'Souza, Edward Yu, Jake Van Dyk
Edward Yu
BACKGROUND AND PURPOSE: To perform a systematic review of the predictive ability of various dose-volume histogram (DVH) parameters (V(dose), mean lung dose (MLD), and normal tissue complication probability (NTCP)) in the incidence of radiation pneumonitis (RP) caused by external-beam radiation therapy. METHODS AND MATERIALS: Studies assessing the relationship between CT-based DVH reduction parameters and RP rate in radically treated lung cancer were eligible for the review. Synonyms for RP, lung cancer, DVH and its associated parameters (NTCP, V(20), V(30), MLD) were combined in a search strategy involving electronic databases, secondary reference searching, and consultation with experts. Individual or group data …
What Makes The Trades?, Christopher Roman
What Makes The Trades?, Christopher Roman
Christopher N. Roman
Article that appeared in Sail magazine (ISSN: 0036-2700).
Lattice Thermal Conductivity Of K2(Bi1_Zsbz)8se13 Solid Solutions, Jeffrey S. Dyck, Theodora Kyratsi, Evripides Hatzikraniotis, M Paraskevopoulous, H. K. Shin, Ctirad Uher, Mercouri Kanatzidis
Lattice Thermal Conductivity Of K2(Bi1_Zsbz)8se13 Solid Solutions, Jeffrey S. Dyck, Theodora Kyratsi, Evripides Hatzikraniotis, M Paraskevopoulous, H. K. Shin, Ctirad Uher, Mercouri Kanatzidis
Jeffrey Dyck
The family of solid solutions of the type B -K2(Bi1_zSbz)8Se13 (0
Liquid Crystal Blazed Gratings Formed In A Single-Step Through Photo-Induced Localization Of Polymer Into A Prismatic Structure, Sang Hwa Kim, Liang-Chy Chien
Liquid Crystal Blazed Gratings Formed In A Single-Step Through Photo-Induced Localization Of Polymer Into A Prismatic Structure, Sang Hwa Kim, Liang-Chy Chien
Sang Kim
A liquid crystal blazed grating having a prismatic polymer microstructure has been developed. The polymer structure is fabricated by photo-induced localization and polymerization of a small concentration of monomer onto one substrate of an electro-optical cell by using ultraviolet light irradiation at 45degrees direction from normal incident. Using this method a periodical one-dimensional pattern with a prismatic shape of polymer can be formed on a one-dimensional pattern-forming state of a cholesteric host. The optical diffraction properties of the grating are evaluated by the application of electric field and light incident angles.
Liquid Crystal Blazed Gratings Formed In A Single-Step Through Photo-Induced Localization Of Polymer Into A Prismatic Structure, Sang Hwa Kim, Liang-Chy Chien
Liquid Crystal Blazed Gratings Formed In A Single-Step Through Photo-Induced Localization Of Polymer Into A Prismatic Structure, Sang Hwa Kim, Liang-Chy Chien
Liang-Chy Chien
A liquid crystal blazed grating having a prismatic polymer microstructure has been developed. The polymer structure is fabricated by photo-induced localization and polymerization of a small concentration of monomer onto one substrate of an electro-optical cell by using ultraviolet light irradiation at 45degrees direction from normal incident. Using this method a periodical one-dimensional pattern with a prismatic shape of polymer can be formed on a one-dimensional pattern-forming state of a cholesteric host. The optical diffraction properties of the grating are evaluated by the application of electric field and light incident angles.
Conduction Band Splitting And Transport Properties Of Bi2se3., J. Navrátil, J. Horák, T. Plecháček, S. Kamba, P. LošŤÁK, Jeffrey Dyck, W. Chen, C. Uher
Conduction Band Splitting And Transport Properties Of Bi2se3., J. Navrátil, J. Horák, T. Plecháček, S. Kamba, P. LošŤÁK, Jeffrey Dyck, W. Chen, C. Uher
Jeffrey Dyck
Detailed transport studies of single crystals of Bi2Se3 were made in the temperature range of 2–300K, and the data were analyzed in terms of a model consisting of two groups of electrons—a centrosymmetrical lower conduction band and an upper conduction band located away from the Γ-point. Very good agreement with the experimental data is obtained assuming the electrons are scattered on acoustic phonons and ionized impurities. A rather strong influence of the latter mechanism is attributed to a large number of charged selenium vacancies in Bi2Se3. The fitted transport parameters were used to calculate the electronic portion of the thermal …
Local Community Participation In Livelihoods Improvement And Sustainability “Anaqeed Al-Khair Project Case Study, Raed Al-Tabini, I.A. Hawamdeh
Local Community Participation In Livelihoods Improvement And Sustainability “Anaqeed Al-Khair Project Case Study, Raed Al-Tabini, I.A. Hawamdeh
Raed Al-Tabini
No abstract provided.
Interacting Near-Solutions To A Hamiltonian System, Gregory S. Spradlin
Interacting Near-Solutions To A Hamiltonian System, Gregory S. Spradlin
Gregory S. Spradlin
Towards Increasing Web Application Productivity, Jia Zhang, Jen-Yao Chung, Carl Chang
Towards Increasing Web Application Productivity, Jia Zhang, Jen-Yao Chung, Carl Chang
Jia Zhang
No abstract provided.
Migration To Web Services Oriented Architecture – A Case Study, Jia Zhang, Jen-Yao Chung, Carl Chang
Migration To Web Services Oriented Architecture – A Case Study, Jia Zhang, Jen-Yao Chung, Carl Chang
Jia Zhang
No abstract provided.
Tools And Strategies For Processing Diffusion-Ordered 2d Nmr Spectroscopy (Dosy) Of A Broad, Featureless Resonance: An Application To Methylaluminoxane (Mao), Jan Lasse Eilertsen, Randall W. Hall, Larry S. Simeral, Leslie G. Butler