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The crystal structure of InYGe2O7 germanate

Erick A. Juárez‐Arellano、L. Bucio、José Luis Ruvalcaba‐Sil 等 6 位作者2002-05-01Zeitschrift für Kristallographie - Crystalline Materials

Abstract A new indium yttrium germanate presenting the thortveitite structure with symmetry described by the space group C2/ m (No. 12) has been prepared by high temperature solid state reaction as polycrystalline powder material. This crystallizes in the monoclinic system, with cell parameters a = 6.8286(1) Å, b = 8.…

Luminescence Properties of Advanced MaterialsCrystal Structures and PropertiesX-ray Diffraction in Crystallography

Determination of the Pcmn / Ibm 2 Phase Boundary at High Temperatures in the System Ca 2 Fe 2 O 5 ‐Ca 2 Al 2 O 5

Koichiro Fukuda、Hisashi Ando2002-05-01Journal of the American Ceramic Society

The crystals of Ca 2 (Al x Fe 1− x ) 2 O 5 with 0 ≤ x ≤ 0.4 were examined using powder XRD at temperatures between 25° and 1000°C. The Pcmn to Ibm 2 phase transition was readily detected by the disappearance of the 131 and 151 reflections ( h + k + l odd). Thus, the phase relationship has been determined as combined f…

Advanced ceramic materials synthesisMicrowave Dielectric Ceramics SynthesisNuclear materials and radiation effects

Alternatives to salt curing techniques: A review

J. Kanagaraj、N. K. Chandra Babu2002-05-01Journal of Scientific & Industrial Research

The raw hides and skins are flayed from the animal and processed further to manufacture leather. As the main constituent of the raw skins and hides is protein, they are much susceptible for bacterial degradation. Thus, itis essential to preserve the protein matrix and also to arrest microbial attack temporarily. Sever…

Cultural Heritage Materials AnalysisCollagen: Extraction and Characterization

X-ray crystallographic studies of polymeric materials

N. V. Bhat、R.R. Deshmukh2002-05-01Indian Journal of Pure & Applied Physics

X-ray diffraction (XRD) studies are very useful for distinguishing crystalline and non-crystalline states. Highly crystalline substances give patterns with sharp diffraction peaks or spots, whereas liquids or amorphous materials lie between these two extremes, because their chain length is large and it is difficult to…

Polymer crystallization and propertiesPolymer Nanocomposites and PropertiesPolymer Nanocomposite Synthesis and Irradiation

Crystal Chemistry and Phase Transitions in Substituted Pollucites along the CsAlSi 2 O 6 ‐CsTiSi 2 O 6.5 Join: A Powder Synchrotron X‐ray Diffractometry Study

Hongwu Xu、Alexandra Navrotsky、M. Lou Balmer 等 4 位作者2002-05-01Journal of the American Ceramic Society

The crystal structures for a suite of substituted pollucites with the compositions CsTi x Al 1– x Si 2 O 6+0.5 x , 0 ≤ x ≤ 1, have been determined from Rietveld analysis of powder synchrotron XRD data. Our results indicate that the pollucite end member (CsAlSi 2 O 6 ) has a tetragonal structure (space group I 4 1 / a…

Glass properties and applicationsCrystal Structures and PropertiesX-ray Diffraction in Crystallography

Pharmacokinetics and Safety of Gadobenate Dimeglumine (Multihance) in Subjects With Impaired Liver Function

Brian E. Davies、Miles A. Kirchin、KATHLEEN BENSEL 等 7 位作者2002-05-01Investigative Radiology

RATIONALE AND OBJECTIVES: To characterize the pharmacokinetics of gadolinium and to evaluate the safety of gadobenate dimeglumine (Gd-BOPTA) compared with placebo, in subjects with impaired liver function. METHODS: Volunteer adult subjects with hepatic impairment (Child-Pugh classification B or C) received, randomly a…

Drug Transport and Resistance MechanismsLanthanide and Transition Metal ComplexesBoron Compounds in Chemistry

Controlling structural organization of binary phase-separating fluids through mobile particles

Tang Yan-Li、Yu-qiang Ma2002-05-01The Journal of Chemical Physics

The structural organization in binary immiscible fluids is studied in the presence of mobile particles. We show that the particles, which are included in the favorable phase due to a selective affinity and assemble therein, can drive the favorable phase to self-organize into cluster, interconnected, and network struct…

Material Dynamics and PropertiesMicro and Nano RoboticsPickering emulsions and particle stabilization

Single and Double-Layer Antireflection Coatings on Silicon

İpek Girgin Kavaklı、Kayhan Kantarlı2002-05-01DergiPark (Istanbul University)

In this study, the effect of single and double-layer thin film coatings on the reflectance spectrum of silicon surfaces has been investigated. Thin film coatings have been prepared by vacuum evaporation of the materials with suitable refractive index. Reflectance measurements in the visible and near infrared have show…

Thin-Film Transistor TechnologiesOptical Coatings and GratingsSurface Roughness and Optical Measurements

Cotton Wax and Its Relationship with Fiber and Yarn Properties

Xiaoliang Leon Cui、John B. Price、Timothy A. Calamari 等 5 位作者2002-05-01Textile Research Journal

In this study, thirty-six cultivars of U.S. upland cotton are selected and their wax content determined by the Conrad method. Both ring spun and open-end yarns are then made from these cottons. Various fiber and yarn properties are measured before and after wax removal using AFIS, HVI, the West Point cohesion tester,…

Textile materials and evaluationsResearch in Cotton Cultivation

Improving the quality of electron backscatter diffraction (EBSD) patterns from nanoparticles

J. A. Small、Joseph R. Michael、David S. Bright2002-05-01Journal of Microscopy

In this study, we investigated the relative contributions of atomic number (Z) and density (rho) to the degradation of the electron backscatter diffraction (EBSD) pattern quality for nanoparticles < 500 nm in diameter. This was accomplished by minimizing the diffuse scattering from the conventional thick mounting subs…

Iron oxide chemistry and applicationsElectron and X-Ray Spectroscopy TechniquesAnodic Oxide Films and Nanostructures

Effect of melt temperature and skin‐core morphology on the mechanical performance of nylon 6

N. Sanjeeva Murthy、Val A. Kagan、Robert G. Bray2002-05-01Polymer Engineering and Science

Abstract The crystalline texture and mechanical (tensile and flexural) properties of injection molded nylon 6 were evaluated to understand the influence of the melt temperature ( T mlt ), one of the key‐processing variables. The mechanical properties are found to be sensitive to T mlt only below ∼ 250°C. Rapid quenchi…

Polymer crystallization and propertiesAdditive Manufacturing and 3D Printing TechnologiesMaterial Properties and Processing

Structural Behaviour of Surfacings on Steel Orthotropic Decks and Considerations for Practical Design

Roman Wolchuk2002-05-01Structural Engineering International

Surfacings on steel orthotropic decks act compositely with the steel deck plate and must be regarded as an integral part of the structural deck system. Surfacing materials are generally visco-elastic to plastic and behave elastically only at low temperatures. Elastic moduli of most surfacings strongly depend on temper…

Material Properties and ApplicationsMaterials Engineering and ProcessingMaterial Properties and Failure Mechanisms

Electrochemical Interaction of Lead with Alloy 600 and Alloy 690 in High-Temperature Water

S. S. Hwang、J. S. Kim2002-05-01CORROSION

Anodic polarization behaviors of Alloy 600 (UNS N06600) and Alloy 690 (UNS N06690) have been studied as a function of lead content in a solution of pH 4 and pH 10 at 90°C. As the amount of lead in the solution increased, and critical current densities and passive current densities of Alloy 600 and Alloy 690 increased,…

Corrosion Behavior and InhibitionHydrogen embrittlement and corrosion behaviors in metalsElectrochemical Analysis and Applications

Design of a 5-Station Macromolecular Crystallography Beamline at MAX-Lab

Christian B. Mammen、Thomas Ursby、Yngve Cerenius 等 7 位作者2002-05-01Acta Physica Polonica A

A beam l ine for ma cromolec ular cr y stallo gra phy is un der construction at the Swedish synchrotron light source MA X -lab at Lund U niversity in a collab ora tiv e eort b etw een Denmar k and Sw eden. Of the 7 mrad hori zontal w iggler fan emitted from the new superconducti ng multip ole wiggler , the central 2 m…

Protein Structure and DynamicsEnzyme Structure and FunctionBiochemical and Molecular Research

Lead–zirconate–titanate-based metal/ferroelectric/insulator/semiconductor structure for nonvolatile memories

Mingjiao Liu、Hong Koo Kim、J.R. Blachère2002-05-01Journal of Applied Physics

We have investigated the structural and electrical properties of the metal/ferroelectric/insulator/semiconductor (MFIS) structure that incorporates a MgO/SiO2 insulating buffer between a ferroelectric layer and Si substrate. Highly oriented lead–zirconate–titanate [Pb(Zr,Ti)O3, or PZT] films were grown on the MgO-buff…

Ferroelectric and Piezoelectric MaterialsMultiferroics and related materialsAcoustic Wave Resonator Technologies

Formation kinetics and stability studies on the lanthanide complexes of 1,4,7,10-tetraazacyclododecane-N,N',N'',N'''-tetraacetic acid by capillary electrophoresis

Xiaofeng Zhu、Susan Z. Lever2002-05-01Electrophoresis

In this study, the kinetic behaviors of four lanthanide ions, Sm(3+), Dy(3+), Yb(3+) and Lu(3+), when mixed with a polyazamacrocyclic chelating agent 1,4,7,10-tetraazacyclododecane-N,N',N",N"'-tetraacetic acid (DOTA), were investigated by capillary electrophoresis (CE) in the pH range of 2.0-6.0. At pH 2.0, the format…

Supramolecular Chemistry and ComplexesRadioactive element chemistry and processingLanthanide and Transition Metal Complexes

Cell surface hydrophobicity and mycolic acid composition of Rhodococcus strains isolated from activated sludge foam

Helen Stratton、P R Brooks、PC Griffiths 等 4 位作者2002-05-01Journal of Industrial Microbiology & Biotechnology

The bacteria causing foaming in activated sludge plants are considered to be hydrophobic, and their hydrophobicity is assumed to be a crucial factor in their foam-forming ability. This study showed no consistent relationship between cell surface hydrophobicity (CSH), as determined by microbial adherence to hydrocarbon…

Wastewater Treatment and Nitrogen RemovalGeochemistry and Elemental AnalysisPickering emulsions and particle stabilization

Controlling the absorption dynamic of water-based ink into porous pigmented coating structures to enhance print performance

Cathy J. Ridgway、Patrick A.C. Gane2002-05-01Nordic Pulp & Paper Research Journal

Article Controlling the absorption dynamic of water-based ink into porous pigmented coating structures to enhance print performance was published on May 1, 2002 in the journal Nordic Pulp & Paper Research Journal (volume 17, issue 2).

Computer Graphics and Visualization TechniquesNanomaterials and Printing TechnologiesPickering emulsions and particle stabilization

Polymerization of Phenylacetylene Catalyzed by Diphosphinopalladium(II) Complexes

Kelin Li、Guangping Wei、James Darkwa 等 4 位作者2002-05-01Macromolecules

Cationic bis(phosphino)palladium complexes were generated in situ from the reaction of (dppf)PdCl(CH 3 ), (dippf)PdCl(CH 3 ), (dppe)PdCl(CH 3 ), (dppf)PdCl 2, (dippf)PdCl 2, and (dppe)PdCl 2 (dppf = bis(diphenylphosphino)ferrocene, dippf = bis(diisopropylphosphino)ferrocene, and dppe = bis(diphenylphosphino)ethane) wi…

Conducting polymers and applicationsPolyoxometalates: Synthesis and ApplicationsOrganoboron and organosilicon chemistry

Chemical Speciation of Iodine Source Term to Containment

Joanna McFarlane、J.C. Wren、Robert J. Lemire2002-05-01Nuclear Technology

Iodine species released into a reactor containment building following a loss-of-coolant accident is determined by the relative timing and quantity of iodine and other fission products released from the fuel, chemical thermodynamics in the fuel channel, and reaction kinetics in cooler regions of the heat transport syst…

Radioactive element chemistry and processingNuclear Materials and PropertiesThermal and Kinetic Analysis