Materials Literature
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。
The potential for performing cellulase-catalyzed reactions on cellulose dissolved in 1-butyl-3-methylimidazolium chloride ([bmim]Cl) has been investigated. We have carried out a systematic study on the irreversible solvent and ionic strength-induced inactivation and unfolding of cellulase from Trichoderma reesei (E.C.…
Synthesis of clean double-walled carbon nanotubes by a catalytic chemical vapour deposition (CCVD) method is reported; the catalyst is a Mg(1 - x)Co(x)O solid solution containing additions of Mo oxide; this MgO-based catalyst can be easily removed, leading to gram-scale amounts of clean carbon nanotubes, 77% of which…
Abstract The encapsulation of high amounts of magnetite into polystyrene particles can efficiently be achieved by a new three‐step preparation route including two miniemulsion processes. In the first step, a dispersion of oleic acid coated magnetite particles in octane is obtained. In the second step, magnetite aggreg…
Preface Introduction. Assembly of Polypyrroles. Properties of Polypyrroles. Synthesis of Polyanilines. Properties of Polyanilines. Synthesis and Properties of Polythiophenes. Processing and Device Fabrication.
The Protein Data Bank (PDB; http://www.pdb.org/) continues to be actively involved in various aspects of the informatics of structural genomics projects--developing and maintaining the Target Registration Database (TargetDB), organizing data dictionaries that will define the specification for the exchange and depositi…
Mono-dispersed sub-micron sized hydrotalcite-like compounds (HTlcs), [Mg1−xAlx(OH)2](CO3)y·2H2O, were synthesized by the urea hydrolysis method. The as-prepared compounds display platelet-like primary particles with a hexagonal shape. The breadth to thickness ratio can be varied by changing the synthesis conditions su…
A model for a chiral material in which both the permittivity and permeability are equal to zero is discussed. Such a material is referred by us as a "chiral nihility". It is shown that this exotic material can be realized as a mixture of small helical inclusions. Wave solutions and energy in such a medium are analyzed…
Over the past several years, advances in the design and fabrication of planar solid oxide fuel cells (SOFCs) have led to a steady reduction in the temperatures necessary for their operation. Consequently, it appears more realistic now to use low cost heat-resistant alloys for interconnect components in the SOFC stack.…
Asahi Kasei Corp. has succeeded in the development of a new green process for producing an aromatic polycarbonate based on bisphenol-A (hereafter usually abbreviated as PC) without using phosgene and methylene chloride. The new PC production process is the world's first to use carbon dioxide (CO2) as a starting materi…
In recent years, considerable effort has been directed towards the synthesis of conjugated polymers with low optical band gaps (Eg), since they show intrinsic electrical conductivity. One of the approaches towards the designing of such polymers is the use of strong donor and acceptor monomers at regular arrangements i…
Since the serendipitous event that led to the first synthesis of a molecule by the hands of Man in 1826, the creation of molecular matter depended for 150 years on linking together molecules from other molecular building blocks with the help of strong covalent bonds. The advent of supramolecular chemistry in the last…
Research Article| January 03, 2003 Biomineralization and Evolutionary History Andrew H. Knoll Andrew H. Knoll Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, Massachusetts, 02138 U.S.A. Search for other works by this author on: GSW Google Scholar Reviews in Mineralogy and Geochemistry…
This paper presents several solution-phase methods for the large-scale synthesis of metal nanoparticles with controllable compositions (e.g., spherical nanoparticles of gold/silver alloys), morphologies (e.g., nanospheres, triangular nanoplates, circular nanodisks, and nanocubes of silver), and structures (e.g., solid…
TEST 02 - Elsevier's Scopus, the largest abstract and citation database of peer-reviewed literature. Search and access research from the science, technology, medicine, social sciences and arts and humanities fields.
Fluorescent semiconductor nanocrystals (quantum dots [QDs]) are hypothesized to be excellent contrast agents for biomedical assays and imaging. A unique property of QDs is that their absorbance increases with increasing separation between excitation and emission wavelengths. Much of the enthusiasm for using QDs in viv…
The formation of porous on titanium was investigated in electrolytes containing low concentrations of HF (0.05-0.4 wt %). Under optimized electrolyte conditions and extended polarization, highly ordered porous is obtained that consists of pore arrays with single pore diameter of 140 nm and a pore spacing of 150 nm. Du…
This volume expands and improves the AAPG 1978 classic, A Color Illustrated Guide to Carbonate Rock Constituents, Textures, Cements, and Porosities(AAPG Memoir 27). Carbonate petrography can be quite complicated. Changing assemblages of organisms through time, coupled with the randomness of thin-section cuts through c…
This textbook on nucleation, crystal growth and epitaxy, written from a unified point of view, presents the fundamentals and the state-of-the-art of the subject. All formulae and equations are illustrated by examples of technological importance.
In this paper, the structural change of the sulfur cathode during the electrochemical reaction of a lithium sulfur battery employing 0.5 M LiCF 3 SO 3 -tetra(ethylene glycol) dimethyl ether (TEGDME) was studied by means of scanning electron microscopy (SEM), X-ray diffraction (XRD), and wave dispersive spectroscopy (W…
The prediction of damage to structures caused by accidental collision – whether to automobiles, offshore installations or simply the packaging around an electrical appliance – is a crucial factor in their design. This important new study focuses on the way in which structures and materials can be designed to absorb ki…