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Influence of MgO substrate miscut on domain structure of pulsed laser deposited SrxBa1−xNb2O6 as characterized by x-ray diffraction and spectroscopic ellipsometry

Christopher M. Rouleau、G. E. Jellison、D. B. Beach2003-05-01Applied Physics Letters

Pulsed laser deposition has been used to grow highly oriented SrxBa1−xNb2O6 (SBN:x) on (001)MgO and miscut MgO (2° off 001 toward 100) in the presence of a pulsed O2 jet. The target stoichiometry was SBN:52±1.5%, but films grown at 700 °C were cation deficient and had a final composition of SBN:61±1.5%. Visually, the…

Ferroelectric and Piezoelectric MaterialsSemiconductor materials and devicesAcoustic Wave Resonator Technologies

Kinetics of depletion interactions

G. A Vliegenthart、P. van der Schoot2003-05-01Europhysics Letters (EPL)

Depletion interactions between colloidal particles dispersed in a fluid medium are effective interactions induced by the presence of other types of colloid. They are not instantaneous but built up in time. We show by means of Brownian dynamics simulations that the static (mean-field) depletion force between two guest…

Material Dynamics and PropertiesPickering emulsions and particle stabilizationElectrostatics and Colloid Interactions

Multichannel detector–collimator for powder diffraction measurements at energy scanning x-ray absorption spectroscopy synchrotron radiation beamlines for high-pressure and high-temperature applications

A. Filipponi、Valentina M. Giordano、Simone De Panfilis 等 8 位作者2003-05-01Review of Scientific Instruments

We describe a modular detector system suitable to intercept the diffracted x-ray radiation (Debye–Scherrer rings) in a transmission geometry setup at monochromatic tunable synchrotron radiation beamlines. The detector consists of several independent channels composed of a motorized front slit and a rear detector slit…

High-pressure geophysics and materialsX-ray Spectroscopy and Fluorescence AnalysisX-ray Diffraction in Crystallography

Triaxial Woven Fabric (TWF) Composites with Open Holes (Part II): Verification of the Finite Element Models

Qilin Zhao、Suong V. Hoa、Paul Ouellette2003-05-01Journal of Composite Materials

An elaborate finite element formulation was developed for the triaxial woven fabric (TWF) composites and this is presented in a parallel publication [Zhao, Q. and Hoa, S.V. Triaxial Woven Fabric (TWF) Composites With Open Holes (Part I): Finite Element Models For Analysis, Accepted, Journal of Composite Materials, thi…

Textile materials and evaluationsStructural Analysis and OptimizationStructural Analysis of Composite Materials

π-Conjugated multiporphyrin box via self-assembly of an ethynylene-bridged zinc porphyrin dimer

Akihiko Tsuda、Haifeng Hu、Reiko Watanabe 等 4 位作者2003-05-01Journal of Porphyrins and Phthalocyanines

An ethynylene-bridged zinc porphyrin dimer bearing metal-coordinating groups, such as bis[{5-(4-pyridyl)-15-(3,5-didodecyloxyphenyl)porphyrinato}zinc] Z2, self-assembles in CHCl 3 to form a rectangular-shaped supramolecular nano box, in which all the Z2 units preferentially adopt a planar conformation with a syn-paral…

Supramolecular Chemistry and ComplexesPorphyrin and Phthalocyanine ChemistryLuminescence and Fluorescent Materials

The Application of Shape Memory Actuators in Anthropomorphic Upper Limb Prostheses

Christian Mariani Lucas dos Santos、Fransérgio Leite da Cunha、Vladimir Ivanovitch Dynnikov2003-05-01Artificial Organs

In recent years, single crystal Cu-Al-Ni alloys with shape memory behavior (SMB) became generally commercialized. They achieved the level of extended application, including upper limb human prosthesis with anthropomorphic characteristics. An actuator based in single crystal Cu-Al-Ni alloy was tested as a prototype for…

Shape Memory Alloy Transformations

Borocookeite, a new member of the chlorite group from the Malkhan gem tourmaline deposit, Central Transbaikalia, Russia

V.Ye. Zagorsky、I. S. Peretyazhko、Anatoliy N. Sapozhnikov 等 5 位作者2003-05-01American Mineralogist

Borocookeite, ideally Li 1+3x Al 4-x (BSi 3 )O 10 (OH,F) 8 (where “x” varies in the range 0.00-0.33 apfu), in which [4] Al is replaced by B relative to cookeite, occurs as a late-stage pocket mineral in the Sosedka and Mokhovaya pegmatite veins, Malkhan gem tourmaline deposit, Chikoy district, Chita oblast, Russia. Bo…

Geological and Geochemical AnalysisCrystal Structures and PropertiesRadioactive element chemistry and processing

Structural Aspects of the β‐Polymorph of (E)‐4‐Formylcinnamic Acid: Structure Determination Directly from Powder Diffraction Data and Elucidation of Structural Disorder from Solid‐State NMR

S. Meejoo、Benson M. Kariuki、Simon J. Kitchin 等 6 位作者2003-05-01Helvetica Chimica Acta

Abstract Among the derivatives of ( E )‐cinnamic acid for which the solid‐state photochemical properties have been studied, ( E )‐4‐formylcinnamic acid ( 1 ) has already received much attention. Given the inability to prepare single crystals of the β ‐polymorph of 1 that are of suitable size and quality for structural…

Crystal Structures and PropertiesNuclear materials and radiation effectsX-ray Diffraction in Crystallography

Copper losses of flyback transformer: search for analytical expressions

Chérif Larouci、J.P. Keradec、J.P. Ferrieux 等 5 位作者2003-05-01IEEE Transactions on Magnetics

Because analytical expressions are required to run optimization software, this subject is very topical. This work uses equivalent permeability to homogenize the winding structure and approximations for the window field. A progressive approach leads to the needed expressions for a transformer built around a gapped ferr…

Silicon Carbide Semiconductor TechnologiesMagnetic Properties and ApplicationsInduction Heating and Inverter Technology

Polymeric Drug for Antimicrobial Activity Studies: Synthesis and Characterization

A. Arun、B. S. R. Reddy、M. Rajkumar2003-05-01Journal of Bioactive and Compatible Polymers

In this study, 2′,4-dichloro-5′-fluoro-1-ene-2-(4-hydroxyphenyl)phenone (EHP) was synthesized using 4-hydroxybenzaldehyde and 2, 4-dichloro-5-fluoro acetophenone (DFA); 4-[3-(2,4-dichloro-5-fluorophenyl)-3-oxoprop-1-en-1-yl]phenyl acrylate (EAP) was prepared by reacting EHP with acryloyl chloride. Poly(EAP) was prepar…

Click Chemistry and ApplicationsSynthesis and properties of polymersPhosphorus compounds and reactions

The size effect on the phase stability of nanograined Fe 12Ni powders and the magnetic separation of face-centred-cubic body-centred-cubic phases

Hongbin Wang、Qizheng Liu、Jihua Zhang 等 4 位作者2003-05-01Nanotechnology

The phase stability of nanograined Fe–12Ni powders is studied by means of both experiment and theoretical calculations. By means of a magnetic field accompanied by an ultrasonic vibration dispersal, the nanograined Fe–12Ni powders synthesized by the gas condensation were successfully separated into a face-centred-cubi…

Microstructure and mechanical propertiesMetallic Glasses and Amorphous AlloysAdvanced materials and composites

Nitric oxide release from the S-nitrosothiol zinc phthalocyanine complex by flash photolysis

Jeane Cristina Gomes Rotta、Claure N. Lunardi、Antônio Cláudio Tedesco2003-05-01Brazilian Journal of Medical and Biological Research

The photogeneration of nitric oxide (NO) using laser flash photolysis was investigated for S-nitroso-glutathione (GSNO) and S-nitroso-N-acetylcysteine (NacySNO) at pH 6.4 (PBS/HCl) and 7.4 (PBS). Irradiation of S-nitrosothiol with light (lambda = 355 nm followed by absorption spectroscopy) resulted in the homolytic de…

Nitric Oxide and Endothelin EffectsPorphyrin and Phthalocyanine ChemistryPhotodynamic Therapy Research Studies

Microstructural characterization of INCOLOY alloy MA 956

Márcio Ferreira Hupalo、Maysa Terada、Andréa Madeira Kliauga 等 4 位作者2003-05-01Materialwissenschaft und Werkstofftechnik

Abstract Oxide dispersion strengthened (ODS) ferritic materials obtained by mechanical alloying (MA) display particular microstructure and texture. In this paper a microstructural characterization of an INCOLOY MA 956 alloy in the recrystallized (zone annealed) condition is presented. The alloy exhibits a highly aniso…

Fusion materials and technologiesHigh-Temperature Coating BehaviorsNuclear Materials and Properties

34.5L: Late‐News Paper: High Transmittance Pixel Design of In‐Plane Switching TFT‐LCDs for TVs

Yoshiaki Nakayoshi、Naho Kurahashi、Junji Tanno 等 6 位作者2003-05-01SID Symposium Digest of Technical Papers

Abstract Design architecture of realizing high performance IPS‐LCDs with a 30% improved transmittance, less color shifting, and faster response time of less than ms 16 in the grayscales was represented. The newly developed pixel structure, consisting of transparent electrodes arranged on organic insulator, improved th…

Liquid Crystal Research AdvancementsOrganic Light-Emitting Diodes ResearchThin-Film Transistor Technologies

Chemical Composition Distribution of Multicomponent Copolymers

Siripon Anantawaraskul、João B. P. Soares、Paula M. Wood‐Adams2003-05-01Macromolecular Theory and Simulations

Abstract The number and weight chemical composition distributions in random terpolymers were derived using a statistical approach. The solution was then generalized to comprise higher multicomponent copolymers. The analytical solution was verified with Monte Carlo simulations and by considering limiting cases. Chemica…

Asphalt Pavement Performance EvaluationPolymer Nanocomposites and PropertiesAdsorption, diffusion, and thermodynamic properties of materials

Dependence of Sorption Properties of Fibrous Assemblies on Their Fabrication and Material Characteristics

Seong Hun Kim、Jae‐Hyung Lee、Dae Young Lim 等 4 位作者2003-05-01Textile Research Journal

To characterize the sorption behavior of a fibrous assembly, an experimental method must measure the sorption rate and the capacity in conditions similar to those found in the real state. The gravimetric absorbency testing system (GATS) has advantages in that it can dynamically observe the spontaneous transplanar upta…

Natural Fiber Reinforced CompositesTextile materials and evaluationsMaterial Properties and Processing

Electrochemical behaviour of an archaeological bronze alloy in various aqueous media: New method for understanding artifacts preservation

Nabil Souissi、Latifa Bousselmı、S. Khosrof 等 4 位作者2003-05-01Materials and Corrosion

Abstract The aim of this work is to investigate the electrochemical behaviour of an archaeological bronze in several aqueous electrolytes (Na 2 SO 4 , NaCl, KOH, NaHCO 3 and Na 3 PO 4 ) at 0.01 M. The anodic polarization revealed the dissolution of the material independently from the corrosive medium, but the damaging…

Corrosion Behavior and InhibitionCultural Heritage Materials AnalysisBuilding materials and conservation

Surface and Mechanical Property Measurements of H Technology Needle-Punched Nonwovens

C. Roedel、Seshadri Ramkumar2003-05-01Textile Research Journal

The H 1 technology needle-punching process is a patented invention from Fehrer, AG. H 1 technology machinery is used to develop a set of polyester/cotton blended nonwoven substrates. A suitable protocol is developed to clean, process, and blend cotton with polyester fibers suitable for needle-punching on the needle-lo…

Textile materials and evaluationsVibration and Dynamic AnalysisMaterial Properties and Processing

Electronic and Magnetic Properties of Organic Conductors (DMET)2MBr4 (M = Fe, Ga)

Kengo Enomoto、Jun‐ichi Yamaura、Akira Miyazaki 等 4 位作者2003-05-01Bulletin of the Chemical Society of Japan

Abstract (DMET)2MBr4 (M = Fe, Ga) are isostructural organic conductors whose crystal structure consists of an alternate stacking of quasi one-dimensional chain-based donor layers and anion square lattices. The resistivity, ESR, magnetic susceptibility, magnetization, and magnetoresistance of these salts were investiga…

Physics of Superconductivity and MagnetismPerovskite Materials and ApplicationsOrganic and Molecular Conductors Research

Directed Crystallisation of Synthetic Polymers by Low‐Molar‐Mass Self‐Assembled Templates

Aurora Nogales、R. H. Olley、Geoffrey R. Mitchell2003-05-01Macromolecular Rapid Communications

Abstract A novel and powerful method of microstructure control in polyolefins is presented. By dispersing tiny amounts of sorbitol derivatives in the polymer, the subsequent crystal growth can be controlled with modest prior flow‐fields; in particular high levels of preferred orientation are generated in the resultant…

Polymer crystallization and propertiesAdvanced Polymer Synthesis and CharacterizationPolymer composites and self-healing