Materials Literature

文献浏览

按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。

清除
第 274246 / 292547 页 · 当前展示 5,484,901–5,484,920 / 5,850,928 条匹配结果 · 摘要仅作预览

Temperature Control in Spark Plasma Sintering: An FEM Approach

G. Molénat、L Durand、J. Galy 等 4 位作者2010-04-08Journal of Metallurgy

Powder consolidation assisted by pulsed current and uniaxial pressure, namely, Spark Plasma Sintering (SPS), is increasingly popular. One limitation however lies in the difficulty of controlling the sample temperature during compaction. The aim of this work is to present a computational method for the assembly tempera…

Advanced ceramic materials synthesisIntermetallics and Advanced Alloy PropertiesAdvanced materials and composites

Quantifying Resonant Raman Cross Sections with SERS

Stefan Meyer、Eric C. Le Ru、P. Etchegoin2010-04-08The Journal of Physical Chemistry A

We propose a method based on surface-enhanced Raman scattering (SERS) to estimate the resonance Raman cross sections of dyes. The latter are notoriously difficult (or impossible) to obtain by normal (spontaneous) constant wave Raman spectroscopy when the fluorescence quantum yield of the molecules is good and the over…

Gold and Silver Nanoparticles Synthesis and ApplicationsSpectroscopy Techniques in Biomedical and Chemical ResearchProtein Interaction Studies and Fluorescence Analysis

A phase I/II study of neoadjuvant liposomal doxorubicin, paclitaxel, and hyperthermia in locally advanced breast cancer

Željko Vujašković、Dong Wook Kim、Ellen L. Jones 等 11 位作者2010-04-08International Journal of Hyperthermia

PURPOSE: The prognosis for locally advanced breast cancer (LABC) patients continues to be poor, with an estimated five-year survival of only 50-60%. Preclinical data demonstrates enhanced therapeutic efficacy with liposomal encapsulation of doxorubicin combined with hyperthermia (HT). Therefore this phase I/II study w…

Nanoparticle-Based Drug DeliveryNanoplatforms for cancer theranosticsUltrasound and Hyperthermia Applications

Heterogeneous Seeded Growth: Synthesis and Characterization of Bifunctional Fe3O4/ZnO Core/Shell Nanocrystals

Wee Siong Chiu、PoiSim Khiew、Michael Cloke 等 11 位作者2010-04-08The Journal of Physical Chemistry C

In the present study, Fe 3 O 4 /ZnO core/shell nanocrystals (NCs) are synthesized via seed-meditated growth approach in nonhydrolytic condition. The controlling process of thermal pyrolysis of zinc acetate (ZnAc) renders a condition to overgrow ZnO layer on the surface of Fe 3 O 4 NCs (seeds). The transmission electro…

Magnetic Properties and Synthesis of FerritesIron oxide chemistry and applicationsNanomaterials for catalytic reactions

Gate-defined graphene double quantum dot and excited state spectroscopy

Xing Lan Liu、Dorothée Hug、Lieven M. K. Vandersypen2010-04-08Nano Letters

A double quantum dot is formed in a graphene nanoribbon device using three top gates. These gates independently change the number of electrons on each dot and tune the interdot coupling. Transport through excited states is observed in the weakly coupled double dot regime. We extract from the measurements all relevant…

Graphene research and applicationsQuantum and electron transport phenomenaMolecular Junctions and Nanostructures

INHIBITION OF MILD STEEL CORROSION IN H2SO4USING EXUDATE GUM FROMPACHYLOBUS EDULISAND SYNERGISTIC POTASSIUM HALIDE ADDITIVES

Savıour A. Umoren、U. F. Ekanem2010-04-08Chemical Engineering Communications

The corrosion inhibitive effects of Pachylobus edulis exudate gum for mild steel in 2 M H2SO4 and influence of potassium halide additives on the inhibition efficiency were investigated using hydrogen evolution and thermometric methods at 30°–60°C. Inhibition efficiency was determined by comparing the corrosion rates i…

Corrosion Behavior and InhibitionHydrogen embrittlement and corrosion behaviors in metalsConcrete Corrosion and Durability

Synthesis and Characterization of Electropolymerized Nanostructured Aminophenylporphyrin Films

Michael G. Walter、Carl C. Wamser2010-04-08The Journal of Physical Chemistry C

Porphyrins substituted at meso positions with aminophenyl groups undergo oxidative electropolymerization in a process analogous to the formation of polyaniline. Porphyrins that successfully generate polymer films on the electrode include those tetrasubstituted with four p -aminophenyl groups, trisubstituted, or trans-…

Electrochemical sensors and biosensorsConducting polymers and applicationsPorphyrin and Phthalocyanine Chemistry

Structural Effects of Cu/Zn Substitution in the Malachite–Rosasite System

Malte Behrens、Frank Girgsdies2010-04-08Zeitschrift für anorganische und allgemeine Chemie

Abstract Synthetic zincian malachite samples (Cu 1– x Zn x ) 2 (OH) 2 CO 3 with x = 0, 0.1, 0.2 and 0.3 were characterized by powder X‐ray diffraction and optical spectroscopy. The XRD patterns of the samples up to x = 0.2 indicate single phase materials with an approximately linear dependence of the refined lattice p…

Crystal Structures and PropertiesClay minerals and soil interactionsIron oxide chemistry and applications

Mathematical spatio-temporal model of drug delivery from low temperature sensitive liposomes during radiofrequency tumour ablation

Astrid Gasselhuber、Matthew R. Dreher、Ayele H. Negussie 等 6 位作者2010-04-08International Journal of Hyperthermia

PURPOSE: Studies have demonstrated a synergistic effect between hyperthermia and chemotherapy, and clinical trials in image-guided drug delivery combine high-temperature thermal therapy (ablation) with chemotherapy agents released in the heating zone via low temperature sensitive liposomes (LTSL). The complex interpla…

Nanoparticle-Based Drug DeliveryNanoplatforms for cancer theranosticsUltrasound and Hyperthermia Applications

Magnetostructural D Correlation in Nickel(II) Complexes: Reinvestigation of the Zero-Field Splitting

Ján Titiš、Roman Boča2010-04-08Inorganic Chemistry

The magnetostructural D correlation interrelates the zero-field-splitting parameter D withdrawn from the magnetic data with the structural tetragonality parameter D(str). This correlation allows the quantitative prediction that D < 0 occurs for the tetragonally compressed nickel(II) complexes.

Magnetism in coordination complexesLanthanide and Transition Metal ComplexesOrganic and Molecular Conductors Research

Enhanced p-Type Conductivity of ZnTe Nanoribbons by Nitrogen Doping

Shanying Li、Yang Jiang、Di Wu 等 10 位作者2010-04-08The Journal of Physical Chemistry C

Single-crystalline intrinsic and N-doped p-type ZnTe nanoribbons (NRs) were synthesized via the thermal evaporation method in argon-mixed hydrogen and nitrogen-mixed ammonia, respectively. Both intrinsic and doped ZnTe nanoribbons had zinc blende structure and uniform geometry. X-ray diffraction peaks of N-doped ZnTe…

ZnO doping and propertiesPerovskite Materials and ApplicationsNanowire Synthesis and Applications

Excited States of Ru(II) and Re(I) Bipyridyl Complexes Attached to Cyclotriphosphazenes: A Synthetic, Spectroscopic, and Computational Study

Raphael Horvath、C.A. Otter、Keith C. Gordon 等 5 位作者2010-04-08Inorganic Chemistry

A series of new cyclotriphosphazene ligands substituted with pendant 2,2'-bipyridyl moieties, namely, bis[(1,1'-biphenyl)-2,2'-dioxy](2,2'-bipyridyl-3,3'-dioxy)cyclotriphosphazene (L(1)), bis[(1,1'-biphenyl)-2,2'-dioxy][bis{4-(2,2'-bipyridin)-4-yl-phenyoxy}]cyclotriphosphazene (L(2)), (pentaphenoxy)[4-(2,2'-bipyridin)…

Metal complexes synthesis and propertiesOrganic Light-Emitting Diodes ResearchFlame retardant materials and properties

Performance Enhancement of Hybrid Solar Cells Through Chemical Vapor Annealing

Yue Wu、Genqiang Zhang2010-04-08Nano Letters

Improvement in power conversion efficiency has been observed in cadmium selenide nanorods/poly(3-hexylthiophene) hybrid solar cells through benzene-1,3-dithiol chemical vapor annealing. Phosphor NMR studies of the nanorods and TEM/AFM characterizations of the morphology of the blended film showed that the ligand excha…

Organic Electronics and PhotovoltaicsQuantum Dots Synthesis And PropertiesChalcogenide Semiconductor Thin Films

Systematic Structural Coordination Chemistry of p‐tert‐Butyltetrathiacalix[4]arene: Further Complexes of Transition‐Metal Ions

A. Bilyk、John Dunlop、Rebecca O. Fuller 等 11 位作者2010-04-08European Journal of Inorganic Chemistry

Abstract In extension of earlier work on complexes of p ‐ tert ‐butyltetrathiacalix[4]arene, LH 4 , with late transition‐metal M II species, we report studies of complexes modelled on the basis of single‐crystal X‐ray studies as derivatives of V V , W VI , Mn II , Fe III , Ni II , Cu II and Pd II , the last as a trio…

Metal complexes synthesis and propertiesMagnetism in coordination complexesLanthanide and Transition Metal Complexes

Surfactant-Dependent Exciton Mobility in Single-Walled Carbon Nanotubes Studied by Single-Molecule Reactions

Anni J. Siitonen、Dmitri Tsyboulski、Sergei M. Bachilo 等 4 位作者2010-04-08Nano Letters

Measurements of stepwise photoluminescence quenching in individual, (n,m)-selected single-walled carbon nanotubes (SWCNTs) undergoing chemical reaction have been analyzed to deduce mobilities of optically generated excitons. For (7,5) nanotubes, the mean exciton range varies between approximately 140 and 240 nm for di…

Carbon Nanotubes in CompositesGraphene research and applicationsMechanical and Optical Resonators

Steric and Electronic Influence on Photochromic Switching of N,C‐Chelate Four‐Coordinate Organoboron Compounds

Hazem Amarne、Chul Baik、Stephen K. Murphy 等 4 位作者2010-04-08Chemistry - A European Journal

A four-coordinate organoboron compound B(ppy)Mes(2) (1, ppy=2-phenylpyridyl, Mes=mesityl) was previously found to undergo reversible photochromic switching through the formation/breaking of a C-C bond, accompanied by a dramatic color change from colorless to dark blue. To understand this unusual phenomenon, a series o…

Porphyrin and Phthalocyanine ChemistryLuminescence and Fluorescent MaterialsPhotochromic and Fluorescence Chemistry

Facile Synthesis of High Quality Graphene Nanoribbons

Liying Jiao、Xinran Wang、Georgi Diankov 等 5 位作者2010-04-08arXiv

Graphene nanoribbons have attracted attention for their novel electronic and spin transport properties1-6, and because nanoribbons less than 10 nm wide have a band gap that can be used to make field effect transistors. However, producing nanoribbons of very high quality, or in high volumes, remains a challenge. Here,…

Materials Science

Phase transition in saturated porous media: pore-fluid segregation in consolidation

E. N. M. Cirillo、N. Ianiro、G. Sciarra2010-04-08arXiv

Consider the consolidation process typical of soils, this phenomenon is expected not to exhibit a unique state of equilibrium, depending on the \textit{external loading} and the constitutive parameters. Beyond the standard solution, also pore-fluid segregation, which is typically associated with fluidization of the gr…

Materials Sciencemath-phmath.MP

Divergent effects of static disorder and hole doping in geometrically frustrated b-CaCr2O4

S. E. Dutton、C. L. Broholm、R. J. Cava2010-04-08arXiv

The gallium substituted and calcium deficient variants of geometrically frustrated b-CaCr2O4, b-CaCr2-2xGa2xO4 (0.02<= x<= 0.25) and b-Ca1-yCr2O4 (0.075<= y<= 0.15), have been investigated by x-ray powder diffraction, magnetization and specific heat measurements. This allows for a direct comparison of the effects, in…

Materials Science

Hugoniot of shocked liquid deuterium up to 300 GPa: Quantum molecular dynamic simulations

Cong Wang、Xian-Tu He、Ping Zhang2010-04-08arXiv

Quantum molecular dynamic (QMD) simulations are introduced to study the thermophysical properties of liquid deuterium under shock compression. The principal Hugoniot is determined from the equation of states, where contributions from molecular dissociation and atomic ionization are also added onto the QMD data. At pre…

Materials Science