Yuji Miyazaki、Tadahiro Nakamoto、Satoaki Ikeuchi 等 11 位作者2007-10-10The Journal of Physical Chemistry B
The spin crossover phenomenon of the recently described spin crossover complex [FeII(DAPP)(abpt)](ClO4)2 [DAPP = bis(3-aminopropyl)(2-pyridylmethyl)amine, abpt = 4-amino-3,5-bis(pyridin-2-yl)-1,2,4-triazole] accompanying an order-disorder phase transition of the ligand was investigated by adiabatic heat capacity calor…
Magnetism in coordination complexesLanthanide and Transition Metal ComplexesElectron Spin Resonance Studies
Mary-Ann Thyveetil、Peter V. Coveney、James L. Suter 等 4 位作者2007-10-10Chemistry of Materials
Layered double hydroxides (LDHs) have generated a large amount of interest in recent years because of their ability to intercalate a multitude of anionic species. Atomistic simulation techniques such as molecular dynamics have provided considerable insight into the behavior of these materials. The advent of supercompu…
Layered Double Hydroxides Synthesis and ApplicationsInorganic Chemistry and MaterialsMagnesium Oxide Properties and Applications
Courtney Stanton、I‐Feng W. Kuo、Christopher J. Mundy 等 5 位作者2007-10-10The Journal of Physical Chemistry B
Despite decades of study, the mechanism by which orotidine-5'-monophosphate decarboxylase (ODCase) catalyzes the decarboxylation of orotidine monophosphate remains unresolved. A computational investigation of the direct decarboxylation mechanism has been performed using mixed quantum mechanical/molecular mechanical (Q…
Protein Structure and DynamicsPhotosynthetic Processes and MechanismsEnzyme Structure and Function
Shujun Zhang、Sung‐Min Lee、Dongho Kim 等 5 位作者2007-10-10Journal of the American Ceramic Society
Pb(Mg 1/3 Nb 2/3 )O 3 –PbZrO 3 –PbTiO 3 (PMN–PZT) ferroelectric single crystals near morphotropic phase boundary compositions were fabricated by solid‐state crystal growth. The Curie temperatures ( T C ) of the grown PMN–PZT crystals were found to be on the order of 210°C, with ferroelectric phase transition temperatu…
Ferroelectric and Piezoelectric MaterialsAcoustic Wave Resonator TechnologiesMicrowave Dielectric Ceramics Synthesis
Qingxi Hou、Wei Liu、Z. H. Liu 等 4 位作者2007-10-10Industrial & Engineering Chemistry Research
Wood cellulose fibers were oxidized by periodate to obtain dialdehyde cellulose (DAC) fibers. The aldehyde group content, degrees of crystallinity and polymerization, and fiber length of treated fibers were characterized. The tensile strength of the test sheets made of treated fibers was also measured. The results sho…
Advanced Cellulose Research StudiesLignin and Wood ChemistryDyeing and Modifying Textile Fibers
C. C. H. Lo、Byeongdu Lee、Vilas G. Pol 等 7 位作者2007-10-10Macromolecules
Self-assembly of thiol-terminated polystyrene-tethered Au nanoparticles in microphase-separated diblock copolymers composed of poly(styrene- b -2vinylpyridine) (PS−PVP) as a function of particle concentration and composition of block copolymers was investigated using anomalous small-angle X-ray scattering (ASAXS) and…
Advanced Polymer Synthesis and CharacterizationPolymer Surface Interaction StudiesBlock Copolymer Self-Assembly
Z. Ben Ayadi、L. El Mir、K. Djessas 等 4 位作者2007-10-10Nanotechnology
ZnO:Al thin films doped with different aluminum concentrations were deposited onto glass substrates by rf-magnetron sputtering at ambient temperature using, for the first time, nanocrystalline powder synthesized by the sol–gel method. The aluminum doping concentration was varied from 2.0 to 4.5 at.%. All the films exh…
ZnO doping and propertiesGas Sensing Nanomaterials and SensorsGa2O3 and related materials
Sui Yang、Xufeng Zhou、Pei Yuan 等 8 位作者2007-10-10Angewandte Chemie International Edition
Like a silkworm cocoon: Siliceous nanostructures that resemble silkworm cocoons with inner multishells and outer well-oriented nanochannels have been synthesized by simultaneous compromised vesicle templating and liquid-crystal templating methods (see picture). CTA+=cetyltrimethylammonium; PFO−=perfluorooctanoate.
Mesoporous Materials and CatalysisPorphyrin and Phthalocyanine ChemistryNanopore and Nanochannel Transport Studies
N. Nakagawa、M Asai、Yasushige Mukunoki 等 6 位作者2007-10-10Tokyo Tech Research Repository (Tokyo Institute of Technology)
We present a rectifying manganite–titanate heterojunction exhibiting a magnetic field tunable depletion layer. This creates a large positive magnetocapacitance, a direct measure of the field-induced reduction of the effective depletion width across the junction. Furthermore, the reduction of the junction barrier shift…
Magnetic and transport properties of perovskites and related materialsAdvanced Condensed Matter PhysicsElectronic and Structural Properties of Oxides
Yan He、XiaoMin Yang、Hsin Wang 等 8 位作者2007-10-10Biochemistry
Rat liver fatty acid-binding protein (LFABP) is distinctive among intracellular lipid-binding proteins (iLBPs): more than one molecule of long-chain fatty acid and a variety of diverse ligands can be bound within its large cavity, and in vitro lipid transfer to model membranes follows a mechanism that is diffusion-con…
Protein Structure and DynamicsEnzyme Structure and FunctionLipid metabolism and biosynthesis
Francis D’Souza、Eranda Maligaspe、Paul A. Karr 等 9 位作者2007-10-10Chemistry - A European Journal
Pacman-type face-to-face zinc-porphyrin-fullerene dyads have been newly synthesized and studied. Owing to the close proximity of the donor and acceptor entities, strong pi-pi intramolecular interactions between the porphyrin and fullerene entities resulted in modulating the spectral and electrochemical properties of t…
Porphyrin and Phthalocyanine ChemistryFullerene Chemistry and ApplicationsPhotochemistry and Electron Transfer Studies
Yajun Zhang、Xingguang Liu、G R Liu2007-10-10Nanotechnology
Based on the theory of thermal elasticity mechanics, a double-elastic beam model is developed for transverse vibrations of double-walled carbon nanotubes with large aspect ratios. The thermal effect is incorporated in the formulation. With this double-elastic beam model, explicit expressions are derived for natural fr…
Carbon Nanotubes in CompositesComposite Structure Analysis and OptimizationNonlocal and gradient elasticity in micro/nano structures
Tsuneya Ando2007-10-10Journal of the Physical Society of Japan
The frequency shift and broadening of long-wavelength optical phonons are calculated for varying Fermi level in a bilayer graphene. Symmetric modes with displacements of two layers in phase are affected strongly. In the absence of a magnetic field, the broadening disappears and the frequency shift exhibits a logarithm…
Graphene research and applications2D Materials and ApplicationsTopological Materials and Phenomena
John J. Glennon、Rui Tang、William E. Buhro 等 4 位作者2007-10-10Nano Letters
Photoluminescence microscopy studies have detected synchronous-photoluminescence-intensity fluctuations along entire cadmium selenide quantum wires under continuous illumination. While similar photoluminescence blinking has been reported previously for semiconductor quantum dots and rods, the observation of synchronou…
Semiconductor Quantum Structures and DevicesQuantum Dots Synthesis And PropertiesNanowire Synthesis and Applications
Zhi-An Ren、Junya Kato、Takahiro Muranaka 等 6 位作者2007-10-10Journal of the Physical Society of Japan
We report superconductivity in heavily boron-doped bulk silicon carbide related to the diamond structure. The compound exhibits zero resistivity and diamagnetic susceptibility below a critical temperature T c of ∼1.4 K, and an effective boron doping concentration higher than 10 21 cm -3 . We present the H – T phase di…
Silicon Carbide Semiconductor TechnologiesDiamond and Carbon-based Materials ResearchSuperconductivity in MgB2 and Alloys
Masato Ida、T Naoe、Masatoshi Futakawa2007-10-10Physical Review E
The dynamic behavior of cavitation and gas bubbles under negative pressure has been studied numerically to evaluate the effect of gas bubble injection into a liquid on the suppression of cavitation inception. In our previous studies, it was demonstrated by direct observation that cavitation occurs in liquid mercury wh…
Cavitation Phenomena in PumpsUltrasound and Cavitation PhenomenaNuclear Physics and Applications
Savıour A. Umoren、I.B. Obot、Eno E. Ebenso2007-10-10Journal of Chemistry
The anti‐corrosive effect of Pachylobus edulis exudate gum in combination with halides ions (Cl – , Br – and I – ) for aluminium corrosion in HCl was studied at temperature range of 30‐60 ° C using weight loss method. Results obtained showed that the naturally occurring exudate gum acts as an inhibitor for aluminium c…
Concrete and Cement Materials ResearchCorrosion Behavior and InhibitionAdvanced Cellulose Research Studies
Vikas Mittal2007-10-10Journal of Applied Polymer Science
Abstract Nanocomposites of polypropylene with montmorillonite modified with dimethyldioctadecylammonium ions were prepared and the effect of compatibilizers on the mechanical and permeation properties was investigated. Compatibilizers were selected on the basis of their chemical nature, molecular weight, amount of gra…
Polymer crystallization and propertiesPolymer Nanocomposites and PropertiesPolymer Nanocomposite Synthesis and Irradiation
Amandeep Salhotra、Bachchu Lal、John Laterra 等 6 位作者2007-10-10NMR in Biomedicine
Amide proton transfer (APT) imaging is a variant of magnetization transfer (MT) imaging, in which the contrast is determined by a change in water intensity due to chemical exchange with saturated amide protons of endogenous mobile proteins and peptides. In this study, eight Fisher 344 rats implanted with 9L gliosarcom…
Advanced MRI Techniques and ApplicationsLanthanide and Transition Metal ComplexesElectron Spin Resonance Studies
Bingqiang Cao、Michael Lorenz、A. Rahm 等 8 位作者2007-10-10Nanotechnology
Phosphorus-doped ZnO (ZnO:P) nanowires were successfully prepared by a novel high-pressure pulsed-laser deposition process using phosphorus pentoxide as the dopant source. Detailed cathodoluminescence studies of single ZnO:P nanowires revealed characteristic phosphorus acceptor-related peaks: neutral acceptor-bound ex…
ZnO doping and propertiesGas Sensing Nanomaterials and SensorsGa2O3 and related materials