Guo Yong Zhang、Peng Xiang Zhang、H. Zhang 等 4 位作者2008-01-16IEEE Sensors Journal
It is found that in laser-induced thermoelectric voltage (LITV) signal in La1-xCaxMnO3and YBa2Cu3O7-y.H thin films, both the rise-time and decay time are increasing linearly with the total parallel-connected resistance of the load and the film. To obtain fast laser-induced thermoelectric voltage signal, smaller load s…
Advanced Thermoelectric Materials and DevicesGas Sensing Nanomaterials and SensorsMagnetic and transport properties of perovskites and related materials
Tim Grüne2008-01-16Journal of Applied Crystallography
In macromolecular crystallography several programs are available to fulfil the steps from data integration via phasing to model refinement. The pathway is not fixed and it is often useful to combine several similar programs. There is no common data format used by all programs and conversions are required between the d…
Protein Structure and DynamicsEnzyme Structure and FunctionBiochemical and Molecular Research
Hong‐Liang Xu、Charles M. Weeks2008-01-16Acta Crystallographica Section D Biological Crystallography
Direct methods of phase determination have played an important role in determining heavy-atom substructures from difference amplitudes of native-derivative crystal pairs or crystals containing anomalously scattering atoms. The minimal principle-based Shake-and-Bake procedure is one of the most successful direct method…
Protein Structure and DynamicsEnzyme Structure and FunctionCrystallization and Solubility Studies
Lunjie Zeng、Chao Ma、Huaixin Yang 等 6 位作者2008-01-16Physical Review B
The structural changes associated with the charge ordering (CO) transition in layered ${\mathrm{La}}_{0.5}{\mathrm{Sr}}_{1.5}\mathrm{Mn}{\mathrm{O}}_{4}$ have been determined by electron diffraction using the multislice least-squares method. The results demonstrate that the structural deformations of the ${\mathrm{Mn}…
Magnetic and transport properties of perovskites and related materialsAdvanced Condensed Matter PhysicsThermal Expansion and Ionic Conductivity
K. V. Gopalakrishnan、S. Saravanan、R. Sarani 等 4 位作者2008-01-16Journal of Applied Crystallography
An interactive internet computing server, RPMS (Ramachandran plot for multiple structures) has been developed to visualize the Ramachandran angles of several highly homologous protein structures in a single plot. Options are provided for users to locate the amino acid residues in various regions of the plot. To perfor…
Protein Structure and DynamicsEnzyme Structure and FunctionAlgorithms and Data Compression
S. Lambert、François Guillet2008-01-16Journal of Applied Crystallography
An X-ray tracing program was developed to simulate the instrument function of a high-resolution X-ray powder diffractometer. The optics of this laboratory instrument consist of a conventional X-ray tube, a single flat Ge monochromator, slits, the powder sample and finally a curved position-sensitive detector. Such a s…
X-ray Spectroscopy and Fluorescence AnalysisX-ray Diffraction in CrystallographyCrystallography and Radiation Phenomena
Yu Xing、Zhenxin Liu、Sinue Gómez 等 4 位作者2008-01-16The Journal of Physical Chemistry C
For studies of textural tuning, structural tuning, or materials sintering, copper/aluminum and copper/zinc nanocomposite materials were prepared. Resistance to sintering of different phases was investigated. Thermal analysis methods were used to design feasible thermal treatment methods that can avoid destructive dama…
Advanced ceramic materials synthesisCatalytic Processes in Materials ScienceAdvanced materials and composites
J. Cho、Kwanwoo Shin、K. S. Cho 等 7 位作者2008-01-16Macromolecules
Phase coherence behavior in thin films of a diblock copolymer that exhibits microphase separation upon heating in the bulk has been analyzed through a proper mean-field free energy functional based on a compressible random-phase approximation theory. Phase coherent profiles at equilibrium and their decay lengths were…
Material Dynamics and PropertiesSurfactants and Colloidal SystemsBlock Copolymer Self-Assembly
Zhi‐Yang Li、Qi‐Hui Wu2008-01-16ChemPhysChem
The electronic properties of alpha-Li(x)V2O5 (x=0.5 and 1) are investigated using first principle calculations based on density functional theory with local density approximation. Different intercalation sites for Li in the V2O5 lattices are considered, showing different influences on the electronic structures of Li(x…
Advancements in Battery MaterialsTransition Metal Oxide NanomaterialsCopper-based nanomaterials and applications
А. П. Дудка2008-01-16Journal of Applied Crystallography
New methods for the determination of site occupancy factors are described. The methods are based on the analysis of differences between intensities of Friedel reflections in noncentrosymmetric crystals. In the first method (Anomalous-Expert) the site occupancy factor is determined by the condition that it is identical…
Crystal Structures and PropertiesSolid-state spectroscopy and crystallographyX-ray Diffraction in Crystallography
A. Macias、J. Muñoz‐Saldaña、F.J. Espinoza‐Beltrán 等 6 位作者2008-01-16Journal of Physics D Applied Physics
Nanoindentation measurements in tetragonal lead zirconate–titanate (PZT) ceramics doped with 0.8 mol% of La 2 O 3 with a composition close to the morphotropic phase boundary (MPB) were performed using indenters with different tip radii. The elastic modulus was independent of indenter size but varied as expected with t…
Ferroelectric and Piezoelectric MaterialsAdvanced ceramic materials synthesisThermal properties of materials
Raffaele Guido Della Valle、Elisabetta Venuti、Aldo Brillante 等 4 位作者2008-01-16The Journal of Physical Chemistry A
We present a strategy for comparing the global properties of competing potential models. By systematically sampling the potential energy surface of crystalline tetracene, we assess how the number, energy and structure of its minima are modified by switching on (or off) the Coulombic interactions. The increased complex…
Advanced Chemical Physics StudiesCrystallography and molecular interactionsMachine Learning in Materials Science
Christine Lavigueur、E. Johan Foster、Vance E. Williams2008-01-16Journal of Applied Crystallography
An inexpensive capillary furnace has been developed for variable-temperature X-ray diffraction in transmission geometry of air-stable liquid crystals and other materials. It offers temperature control with fluctuations of less than ±1 K in the range of interest for these samples, from room temperature to near 573 K. P…
Liquid Crystal Research AdvancementsMesoporous Materials and CatalysisMolecular spectroscopy and chirality
Massimo Bertoldi、T. Zandonella、Dario Montinaro 等 8 位作者2008-01-16Journal of Electrochemical Energy Conversion and Storage
The development of high-performing planar solid oxide fuel cell (SOFC) stacks operating at intermediate temperature (700–850°C) is based on thin-electrolyte anode supported cells (ASCs) and interconnects made by ferritic stainless steels. These metallic materials match very well the thermal expansion behavior of the A…
Electrocatalysts for Energy ConversionAdvancements in Solid Oxide Fuel CellsFuel Cells and Related Materials
Junli Wang、Qing Yang2008-01-16Crystal Growth & Design
Novel one-dimensional (1D) angle-shaped zinc blende ZnSe nanostructures with an angle of 70.5° have been synthesized from the reaction of ZnCl 2 with Se, in a mixture of ethanol and oleic acid under mild solvothermal conditions at 205 °C for 12 to 30 h. This is the first report on the fabrication of angle-shaped nanos…
Quantum Dots Synthesis And PropertiesChalcogenide Semiconductor Thin FilmsNanowire Synthesis and Applications
Silverio Coco、Carlos Cordovilla、Pablo Espinet 等 6 位作者2008-01-16European Journal of Inorganic Chemistry
Abstract New imines (HL) containing substituted dibenzo‐18‐crown‐6‐ethers and their dinuclear ortho ‐palladated complexes, [Pd(μ‐X)L] 2 (X – = CH 3 COO – , Cl – ), have been prepared. The free imine ligands are not liquid crystals, but the palladium complexes, including acetato‐bridged derivatives, show liquid‐crystal…
Liquid Crystal Research AdvancementsSupramolecular Chemistry and ComplexesPorphyrin and Phthalocyanine Chemistry
Anders Eriksson、Martin Nilsson Jacobi、Johan Nyström 等 4 位作者2008-01-16Physical Review E
There exist methods for determining effective conservative interactions in coarse-grained particle-based mesoscopic simulations. The resulting models can be used to capture thermal equilibrium behavior, but the model system we study does not correctly represent transport properties. We suggest the use of force covaria…
Material Dynamics and PropertiesTheoretical and Computational PhysicsBlock Copolymer Self-Assembly
Jing Dong、Rebecca M. Dicharry、Eleanor M. Waxman 等 5 位作者2008-01-16Biomacromolecules
The morphology of wheat protein (WG) blends with polyvinyl alcohol (PVA) and respectively with thiolated polyvinyl alcohol (TPVA) was investigated by atomic force (AFM) and transmission electron microscopy (TEM) as well as by modulated dynamic scanning calorimetry (MDSC). Thiolated additives based on PVA and other sub…
Food composition and propertiesNanocomposite Films for Food Packagingbiodegradable polymer synthesis and properties
W.W. Ho、Huiying Li、Clinton R. Nishida 等 5 位作者2008-01-16Biochemistry
The crystal structure of a cytochrome P450 from the thermoacidophile Picrophilus torridus, CYP231A2 (PTO1399), has been solved. This structure reveals a wide open substrate access channel. To better understand ligand-induced structural transitions in CYP231A2, protein-ligand interactions were investigated using 4-phen…
Enzyme Structure and FunctionHormonal Regulation and HypertensionATP Synthase and ATPases Research
B. A. Haberman、John Young2008-01-16Journal of Electrochemical Energy Conversion and Storage
A typical integrated-planar solid oxide fuel cell (IP-SOFC) consists of modules with series connected electrochemical cells printed on their outer surfaces. Oxygen is supplied to the cathodes from air flowing over the outside of the module and hydrogen diffuses from the internal fuel channels to the anodes through the…
Advancements in Solid Oxide Fuel CellsFuel Cells and Related MaterialsCatalysis and Oxidation Reactions