Alok Shukla、Mrignayani Kotecha、Lakshman Pandey2008-02-29arXiv
The spin lattice relaxation of I=3/2 quadrupolar spin system due to domain walls in order-disorder ferroelectrics has been studied and a general method is proposed for the measurement of domain width in nano ferroelectrics. Based on the fact that electric polarization undergoes spiral orientation as one moves from one…
Materials Sciencecond-mat.otherChemical Physics
R. Thomas Weitz、Ludger Harnau、Stephan Rauschenbach 等 5 位作者2008-02-29Nano Letters
We report on the unexpected finding of nanoscale fibers with a diameter down to 25 nm that emerge from a polymer solution during a standard spin-coating process. The fiber formation relies upon the Raleigh-Taylor instability of the spin-coated liquid film that arises due to a competition of the centrifugal force and t…
Surface Modification and SuperhydrophobicityAdvanced Sensor and Energy Harvesting MaterialsElectrospun Nanofibers in Biomedical Applications
Sofia Ahola、Jani Salmi、Leena‐Sisko Johansson 等 5 位作者2008-02-29Biomacromolecules
Native cellulose model films containing both amorphous and crystalline cellulose I regions were prepared by spin-coating aqueous cellulose nanofibril dispersions onto silica substrates. Nanofibrils from wood pulp with low and high charge density were used to prepare the model films. Because the low charged nanofibrils…
Nanocomposite Films for Food PackagingAdvanced Cellulose Research StudiesLignin and Wood Chemistry
Dingsheng Wang、Ting Xie、Qing Peng 等 4 位作者2008-02-29Journal of the American Chemical Society
Synthesis of mesoporous materials has become more and more important due to their wide application. Nowadays, there are two main ideas in their preparation. One is focused on the templating method. The other is based on metal-organic frameworks (MOFs) constructed from molecular building blocks. Herein, we exploit a ne…
Advanced Photocatalysis TechniquesQuantum Dots Synthesis And PropertiesCopper-based nanomaterials and applications
Marco Polini、Reza Asgari、Giovanni Borghi 等 6 位作者2008-02-29OpenAlex
We report a theoretical study of the influence of electron-electron interactions on the one-particle Green's function of a doped graphene sheet based on the random-phase approximation and on graphene's massless Dirac equation continuum model. We find that states near the Dirac point interact strongly with plasmons wit…
Graphene research and applicationsTopological Materials and PhenomenaSurface and Thin Film Phenomena
Katsuyuki Wakabayashi、Cynthia Pierre、Dmitriy A. Dikin 等 7 位作者2008-02-29OpenAlex
ADVERTISEMENT RETURN TO ISSUEPREVCommunication to the...Communication to the EditorNEXTPolymer−Graphite Nanocomposites: Effective Dispersion and Major Property Enhancement via Solid-State Shear PulverizationKatsuyuki Wakabayashi, Cynthia Pierre, Dmitriy A. Dikin, Rodney S. Ruoff, Thillaiyan Ramanathan, L. Catherine Br…
Carbon Nanotubes in CompositesPolymer crystallization and propertiesPolymer Nanocomposites and Properties
John W. Goodby、Isabel M. Sáez、Stephen J. Cowling 等 10 位作者2008-02-29OpenAlex
In recent years the design of chemical structures of liquid-crystalline materials has developed rapidly, and in many cases changed radically. Since Reinitzer's days, liquid crystals have either been classed as rodlike or disclike, with combinations of the two leading to phasmidic liquid crystals. The discovery that ma…
Liquid Crystal Research AdvancementsSurfactants and Colloidal SystemsMolecular spectroscopy and chirality
W. Kŕause、H. Effenberger、Heinz-Jürgen Bernhardt 等 4 位作者2008-02-28European Journal of Mineralogy
Skorpionite, Ca 3 Zn 2 (PO 4 ) 2 CO 3 (OH) 2 ·H 2 O, is a new secondary mineral from the Skorpion zinc deposit in south-western Namibia. Associated minerals are tarbuttite, hydrozincite and gypsum. Skorpionite forms colourless needle-like crystals of monoclinic symmetry that are elongated parallel to [001] with domina…
Crystal Structures and PropertiesRadioactive element chemistry and processingX-ray Diffraction in Crystallography
Mahmood M. Barbooti、Shahrazad R. Raouf、Firas H. K. Al-Hamdan2008-02-28Engineering and Technology Journal
The optimum conditions for the production of food grade gelatin from the tannerybovine hide wastes are established. The process involves cutting the hide wastes intosmall pieces (1-2 cm2), and washing them with water to remove the dirt. The washedpieces are placed in the liming tank containing 10% of lime in water wit…
Collagen: Extraction and Characterization
Iorwerth O. Thomas、V. V. Kabanov、A. S. Alexandrov2008-02-28Physical Review B
We analyze the behavior of the longitudinal conductivity ${\ensuremath{\sigma}}_{zz}$ in a field perpendicular to the highly conducting plane of a quasi-two-dimensional multiband metal in the case of a closed system where chemical potential oscillations may be observed compared with the case of an open system for vari…
Physics of Superconductivity and MagnetismQuantum and electron transport phenomenaOrganic and Molecular Conductors Research
Sergio Martínez‐Rodríguez、Santosh Panjikar、Karolien Van Belle 等 6 位作者2008-02-28Protein Science
The crystal structure of Escherichia coli ribonuclease I (EcRNase I) reveals an RNase T2-type fold consisting of a conserved core of six beta-strands and three alpha-helices. The overall architecture of the catalytic residues is very similar to the plant and fungal RNase T2 family members, but the perimeter surroundin…
Bacterial Genetics and BiotechnologyRNA and protein synthesis mechanismsEnzyme Structure and Function
A.N. Ulyanov、Da Som Yang、N. Chau 等 5 位作者2008-02-28Journal of Applied Physics
Local structure and magnetic properties of Ti doped A-site deficient La0.6Sr0.4−xMnTixO3+δ manganites (0.15⩾x⩾0) have been studied. The compositions belong to rhombohedral R3¯c phase. Segregation of (La0.6Sr0.4−xMny)(Mn1−y−zTix)O3+δ phase and fallout of (z∕3)Mn3O4 oxide was observed with x increase. Some amount (y) of…
Magnetic and transport properties of perovskites and related materialsRare-earth and actinide compoundsAdvanced Condensed Matter Physics
Biplab Sanyal、Oscar Grånäs、Ronny Knut 等 9 位作者2008-02-28Journal of Applied Physics
We have studied the electronic structure of Co doped ZnO by theory and experiment. Photoelectron and x-ray absorption spectroscopy experiments were performed on 5% Co doped ZnO thin films. The results show that Co-3d states lie in the valence band and hybridize considerably with O-2p states. These results compare qual…
ZnO doping and propertiesMagnetic and transport properties of perovskites and related materialsElectronic and Structural Properties of Oxides
W-R Liu、Y-H Li、W. F. Hsieh 等 7 位作者2008-02-28Journal of Physics D Applied Physics
High-quality ZnO epitaxial films were grown by pulsed-laser deposition on Si (1 1 1) substrates with a thin γ-Al 2 O 3 buffer layer. The epitaxial γ-Al 2 O 3 buffer layer consists of two (1 1 1) oriented domains rotated 60° from each other against the surface normal, which yields the in-plane epitaxial relationship or…
ZnO doping and propertiesGas Sensing Nanomaterials and SensorsGa2O3 and related materials
Tatsuya Nishimura、Takahiro Ito、Yuya Yamamoto 等 5 位作者2008-02-28Angewandte Chemie
Unidirektional ausgerichtete Hybride aus Chitin und Calcit wurden durch templatunterstützte Kristallisation von CaCO3 in einem geordneten Chitinfilm mit nematisch-flüssigkristalliner Ausrichtung erhalten. Das Bild zeigt die resultierende Chitinmatrix (schematisch und lichtmikroskopisch) und das Feinbereichsbeugungsmus…
Paleontology and Stratigraphy of FossilsCalcium Carbonate Crystallization and InhibitionCephalopods and Marine Biology
Gert De Cremer、Yasuko Antoku、Maarten B. J. Roeffaers 等 10 位作者2008-02-28Angewandte Chemie
Zeo-Licht: Silberhaltige Zeolith-3A-Kristalle bestechen durch ungewöhnliche Lumineszenzeigenschaften: Die Bestrahlung mit starkem UV-Licht führt über eine Photoaktivierung zu einer um zwei Größenordnungen intensiveren Emission (siehe Bild). Einzelne Kristalle oder kleine Bereiche davon können mithilfe eines konfokalen…
Carbon and Quantum Dots ApplicationsNanocluster Synthesis and ApplicationsAdvanced Nanomaterials in Catalysis
Dan J. Wilson、Alexey A. Sokol、Sam French 等 4 位作者2008-02-28Physical Review B
We report a state of the art density functional theory study of the intrinsic defects within the rocksalt-structured silver halides. These materials are well known to favor Frenkel defect pairs over Schottky pairs---a key factor in their use as photographic materials. We report the defect structures and formation ener…
Advanced Chemical Physics StudiesQuantum Dots Synthesis And PropertiesCopper-based nanomaterials and applications
Brent D. Weinberg、Tianyi M. Krupka、John R. Haaga 等 4 位作者2008-02-28Radiology
PURPOSE: To prospectively determine, in an animal tumor model, if the block copolymer Pluronic P85 (BASF, Shreveport, La) sensitizes cancer cells to hyperthermia and if intratumorally or intravenously administered copolymer improves the therapeutic outcome of radiofrequency (RF) ablation tumor treatment. MATERIALS AND…
Nanoparticle-Based Drug DeliveryUltrasound and Hyperthermia ApplicationsIntraperitoneal and Appendiceal Malignancies
Ritsuro Miyawaki、Kazumi Yokoyama、Satοshi Matsubara 等 5 位作者2008-02-28European Journal of Mineralogy
Uedaite-(Ce), ideally Mn 2+ CeAl 2 Fe(Si 2 O 7 )(SiO 4 )O(OH), occurs in granite at Shodoshima Island in Seto Inland sea, Kagawa Prefecture, Japan. It is monoclinic, P 2 1 / m , a = 8.939(8) A, b = 5.742(4) A, c = 10.187(8) A, β = 115.10(6)°, V = 473.5(6) A 3 , Z = 2. The four strongest lines in the powder XRD pattern…
Geological and Geochemical AnalysisCrystal Structures and PropertiesAdvanced Condensed Matter Physics
Hualing Zeng、Chunlei Yang、Junfeng Dai 等 4 位作者2008-02-28The Journal of Physical Chemistry C
We report the light-induced incandescence of single-walled carbon nanotubes excited by weak visible and infrared laser beams. The phenomenon does not occur on bulk graphite and amorphous carbon under the same conditions. The intensity of the incandescence is exponentially proportional to the incident laser power and t…
Carbon Nanotubes in CompositesDiamond and Carbon-based Materials ResearchMechanical and Optical Resonators