Materials Literature
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In this paper, we develop an analytical approach to predict the field-induced alignment of cantilevered graphene nanoribbons. This approach is validated through molecular simulations using a constitutive atomic electrostatic model. Our results reveal that graphene's field-oriented bending angle is roughly proportional…
利用机械合金化方法制备了Li-N-H络合氢化物，并研究B、C作为催化剂对其储氢性能的影响.结果表明：LiNH2、Li2NH为Li-N-H络合氢化物的主要储氢相，随B的加入，储氢相的非晶化程度提高.虽然B、C的添加均使储氢量下降，但n（B）∶n（C）=1∶2的混合添加提高了有效储氢量，同时也提高吸放氢动力学性能；B的添加可有效降低可逆吸放氢温度，适当增加球磨时间，有利于提高可逆吸放氢量.
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” opt…
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” opt…
Molecular realignments during the successive phase transformations of a binary mixture of smectogenic and aliphatic compounds have been studied. The layer spacing, which is about 38.5 A in the crystal phase, abruptly increases up to 54 A during the transformation to the smectic phase, because aliphatic molecules are t…
Strong induction observed for push–pull chromophores. In their Full Paper on page 9005 ff., F. Diederich, G. P. Spada et al. discuss the strong cholesteric induction as well as the intramolecular charge-transfer interactions observed for non-planar push–pull chromophores, which are formed by chiral dinaphthazepine don…
A Comment on the Letter by J. Wei et al., [Phys Rev. Lett. 101, 097005 (2008)]. The authors of the Letter offer a Reply.Received 25 September 2008DOI:https://doi.org/10.1103/PhysRevLett.103.109701©2009 American Physical Society
Interactions with electronic excitations can soften and/or broaden phonons. They are greatly amplified at wavevectors Q+- that connect parallel (nested) sheets of the Fermi surface. In such a case, called a Kohn anomaly, the phonon dispersion sharply dips and its linewidth has a maximum at Q+-. Here we present results…
This paper provides a practical, user-oriented understanding of the nature of non-aqueous cleaning solvents, and their uses in industry. While much of the information applies to industry in general, emphasis is on the useof these materials for cleaning stainless steel. Subjects covered include: chemical composition of…
The low responsiveness of contact sensitivity (CS) in sensitized and challenged mice was induced by using hapten-amino acid derivatives. Subcutaneous injection of trinitrophenyl (TNP)-lysine or oxazolone-glycine inhibited ear swelling responses in mice that received rechallenge. The inhibitory effect was long-lasting…
We present an analytical model which permits the calculation of effective material parameters for planar metamaterials consisting of arbitrary unit cells (metaatoms) formed by a set of straight wire sections of potentially different shape. The model takes advantage of resonant electric dipole oscillations in the wires…
We performed an angle-resolved photoemission spectroscopy study of BaFe2As2, which is the parent compound of the so-called 122 phase of the iron-pnictide high-temperature superconductors. We reveal the existence of a Dirac cone in the electronic structure of this material below the spin-density-wave temperature, which…
The basic characteristics of the martensitic transformation of TiNi shape memory alloys are described. They include the crystal structures of the parent and martensite phases, the recoverable strain associated with the martensitic transformation, the transformation temperatures, the temperature and orientation depende…
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” opt…
This research provides an in-depth analysis on the effects of organoclay inclusion in PLA film on the evolution of structural hierarchy during constant and variable rate uniaxial and biaxial stretching processes.At lower deformation rates and/or higher temperatures PLA exhibits three regime stress-optical behavior: In…
Lagoden (L.3H2O, where L is Na+.C20H33O6-; sodium 3beta,16,18-trihydroxy-8,13-epi-9,13-epoxylabdan-15-oate trihydrate) is widely used as an effective haemostatic agent. It has been crystallized from dimethylformamide (DMF) as sodium 3beta,16,18-trihydroxy-8,13-epi-9,13-epoxylabdan-15-oate dimethylformamide hemisolvate…
This paper discusses the basic chemistry of acid cleaning, with specific ideas on 300 series stainless steel. Examples of acid cleaner ingredients, why they are employed, and how they can be applied to remove specific soils are given.
Shape memory thin film composites consisting of at least one shape memory thin film component are of special interest as microactuators since they provide two-way shape memory behavior without any training of the shape memory material. Furthermore, they allow the realization of novel concepts like bistable or phase-co…
The 2010 Gordon Research Conference schedule was published on pages 1276 to 1288 of this issue of the print version of Science . The current schedule can also be found online at www.grc.org/ .
Abstract : Outline: Background and Test Parameters. Results of Comparison of Accelerated and Beachfront Tests. New NC Systems Testing: Panels and Galvanic Assemblies. Conclusions and Plans.