Materials Literature
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A dichlororuthenium(IV) complex of 5,10,15,20-tetrakis[(1S,4R,5R,8S)-1,2,3,4,5,6,7,8-octahydro-1,2:5,8-dimethanoanthrance-9-yl]porphyrin, [Ru(IV)(D(4)-Por)Cl(2)] (1), was prepared by heating [Ru(II)(D(4)-Por)(CO)(MeOH)] (2) in refluxing CCl(4). Complex 1 is characterized by (1)H NMR (paramagnetically shifted pyrrolic…
The Young’s modulus of diamond-like carbon (DLC) pillars was measured by means of mechanical vibration using scanning electron microscopy. The DLC pillars were grown using Ga+ focused ion beam-induced chemical vapor deposition with a precursor of phenanthrene vapor. The Young’s modulus of the DLC pillars was around 10…
A method to perform a predictive search for a given amplitude and phase modulation response in twisted nematic liquid crystal displays is presented. The algorithm is based on a simple physical model that we recently proposed and that considers the effect of liquid-crystal layers located in the vicinity of the edges, w…
Uniform complete shells in one step on a time scale of minutes can be achieved by solvent-controlled precipitation of nanocrystals on the surface of colloidal particles. The thickness of the shells can be effectively controlled through the proper choice of the concentration ratio of colloidal particles serving as core…
Crystal structures of Ba2In2O5: (Ba1−xLax)2In2O5+x (x=0.1, 0.2, 0.3, and 0.5), and Ba2(In1−xGax)2O5 (x=0.1, 0.2 and 0.5) are analyzed by transmission electron microscopy and electron diffraction. Ba2In2O5 has an orthorhombic brownmillerite structure and belongs to space group Ibm2. (Ba1−xLax)2In2O5+x has a tetragonal…
Based on Eringen’s micropolar elasticity theory (MET), a two‐dimensional finite element formulation including one extra degree of freedom is derived by using a linear triangular element, and a corresponding computer program is also developed. By varying the technical constants such as micropolar Young’s modulus E m ,…
An electron beam inspection system based on the projection imaging electron microscope was developed and the proof-of-concept system has been constructed and evaluated. The secondary electrons are projected through the projection imaging optics and imaged onto the image detection system. The projected secondary electr…
The crystal structure of hydrothermally formed Al‐substituted tobermorite‐1.1nm (Ca 4.9 Si 5.5 Al 0.5 O 16.3 (OH) 0.7 ·5H 2 O) has been analyzed using synchrotron radiation powder diffraction data. Crystallographic positions of a zeolitic Ca atom and three water molecules in the channel of the framework were determine…
Abstract The rheological behavior and crosslinking kinetics of model filled rubber compounds during curing were investigated. The effect of chemical composition of monodisperse size particles, prepared by emulsifier‐free emulsion polymerization, on dynamic moduli and gelation time of the filled compounds was studied.…
Different types of magnetic structures were described in terms of a propagation vector and some of its associated basis vectors. Group Theory calculations were used for magnetic symmetry analysis. The use of symmetry in the proper descripton and solution of magnetic structures was demonstrated.
The synthesis of a metal-free form of texaphyrin, an aromatic porphyrin-like macrocycle, is described. Previously, texaphyrins could only be obtained reproducibly in the form of metal complexes. Using ferrocenium cation as the oxidizing agent and starting with a reduced porphyrinogen-like nonaromatic form of texaphyri…
We investigated major physical-chemical characteristics and benthic algae of different alpine lotic systems comprising streams and lake outlets of rhithral and kryal origin over an annual cycle. We also evaluated the structure of the algal communities and its relation to environmental characteristics for the different…
BACKGROUND/AIMS: The aim of this article is to propose a new way to measure the mechanical behaviour of skin by using optical analysis software. Some examples on scars and stretch marks show the validity and the prospects of such a method. METHODS: Software is used to compare two states of deformation. The user takes…
Neutral atomic oxygen (AO)—the dominant atmospheric species at typical low Earth orbit altitudes—is responsible for the erosion, or other degradation, of many satellite materials. Therefore, AO has become an important consideration for spacecraft designers and manufacturers. The study of AO is also of interest to atmo…
The resistivity ${\ensuremath{\rho}}_{\mathrm{xx}},$ the Hall effect, and magnetization $\mathbf{M}$ of a single crystal of ${\mathrm{Sr}}_{2}{\mathrm{FeMoO}}_{6}$ (SFMO) have been studied in a wide temperature range. The ordinary Hall effect (OHE) is negative, identifying electrons as charge current carriers, while t…
In a fusion blanket design, ceramic coating on structural materials has been considered to be used as a tritium permeation barrier. The Chemical Densified Coating (CDC) method has some advantage compared with another coating method. This method is capable to form densified coating on either the outer or the inner surf…
We determine the molecular first-order hyperpolarizability β of the highly nonlinear organic salt 4-N,N-dimethylamino-4′-N′-methyl stilbazolium tosylate (DAST, βzzz=(1540±250)×10-40 m4/V at λ = 1542 nm) and the cocrystal 4-{2-[1-(2-hydroxyethyl)-4-pyridylidene]-ethylidene}-cyclo-hexa-2,5-dien-1-one)–(methyl 2,4-dihydr…
Aluminosilicates frequently deposit onto plumbing materials in distribution systems. Such solids were previously believed to provide some degree of corrosion protection to pipes—although at the expense of increased head loss, reduced flow, and consumer complaints related to postprecipitation. However, this work demons…
Anisotropy is evaluated for in-plane mechanical properties, such as tensile modulus, maximum stress in tension, elongation at maximum stress, shear modulus, and bending rigidity, of three designed sets of spot-bonded nonwoven fabrics. Image analysis is used to quantify the fiber orientation distribution and identify f…
Controlled free radical polymerizations of the four isopropylidene protected styryl sugar monomers, 2,3;4,5-di-O-isopropylidene-1-(4-vinylphenyl)-D-gluco(D-manno)pentitol (1), 2,3-isopropylidene-1-(4-vinylphenyl)-D-threo(D-erythro)triol (2), 1,2;3,4-di-O-isopropylidene-1-(4-vinylphenyl)-D-glyero(L-glycero)-α-D-galacto…