Materials Literature
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Motivated by the industrially important processes of blade coating and cavity filling of liquid crystalline materials, we consider steady, two-dimensional shear-driven (Couette) and pressure-driven (plane Poiseuille) flow of a thin film of a nematic liquid crystal in the slowly varying channel formed between a fixed b…
Abstract The application of the generic name Fragilaria has remained uncertain because the identity of the lectotype, Conferva pectinalis O. F. Müll., is unknown. Traditionally Fragilaria capucina Desm. has been considered a synonym of F. pectinalis, although this synonymy has not been confirmed. Application of the ge…
We have implemented the effect of dynamical core-hole screening into a first principles electronic structure computational scheme. The method has been applied to the x-ray absorption spectrum of the carbon $K$-edge for graphite, fullerene ${\mathrm{C}}_{60}$ molecules, and single-wall carbon nanotubes. We demonstrate…
One natural and two synthetic spinels with compositions Mg(Al 1-z Fe z 3+ ) 2 O 4 (with 2z = 0.078, 0.138, and 0.200, respectively) were studied by in situ, high-temperature, single-crystal X-ray diffraction. All samples were heated from room temperature to 1050 °C. Thermal expansion was monitored by measuring the cel…
Lead-free piezoelectric ceramics [Bi 0.5 (Na 1- x - y K x Li y ) 0.5 ]TiO 3 (abbreviated BNT–BKT–BLT) were prepared by the conventional oxide method. The effects of BKT and BLT amounts on the phase transition and electrical properties were examined. BNT–BKT–BLT ceramics give good performances with piezoelectric consta…
The temperature-sensitive liposome is now in Phase I human clinical trials. This review will provide an update, recapping earlier work and presenting new data that show unexpected mechanistic features that make this triggered-release system an emerging new paradigm for local drug delivery.
Soils science and fluvial geomorphology meet on the subject about flights of river terraces whose treads rise like stairs above active channels. The Pakua tableland in central Taiwan consists of widely unpaired terraces, including six levels in altitude formed by successive river incision. The terraces serve as geomor…
The radio frequency plasma generated during the sputtering of Indium Tin Oxide target using Argon was analyzed by Langmuir probe and optical-emission spectroscopy. The basic plasma parameters such as electron temperature and ion density were evaluated. These studies were carried out by varying the RF power from 20to50…
Chemical-vapor-deposited (CVD) diamond films are considered as neutron detectors for nuclear fusion devices because of their radiation hardness. Data about the radiation hardness of polycrystalline CVD diamond films exposed to 14 MeV neutron are missing in literature so the actual capability of CVD diamond detectors t…
The crystal structures of natural Ag-free lillianite of fumarolic origin from Vulcano, Aeolian Islands, Italy, Pb 2.88 Bi 2.12 (S 5.67 Se 0.33 ) ∑6.00 , with a 13.567(1), b 20.655(2), c 4.1216(4) A, V 1155.0(2) A 3 , space group Bbmm , Z = 4, and galenobismutite also from Vulcano, Pb 1.00 Bi 2.03 (S 3.87 Se 0.11 ) ∑3.…
Abstract The use of various copolymers as dispersants/intercalants/exfoliants in polypropylene (PP)‐clay nanocomposites based on unmodified montmorillonite clays (NaMMT) has been explored. The primary objective of this research has been to find dispersants that allow PP nanocomposites to be formed by direct melt mixin…
This paper deals with the modelling of moderate pressure H2 and H2/CH4 microwave plasmas used for diamond deposition. The first part of the paper reports on the development of a detailed collisional radiative model for moderate pressure pure H2 plasma. Several effects related to electron kinetics, H2 vibrational kinet…
The lowest oscillation mode of a pendant drop has long been conceived to be the longitudinal vibration, i.e., periodic elongation and contraction along the longitudinal direction. However, here we experimentally show that the rotation of the drop about the longitudinal axis is the oscillation mode of the lowest resona…
The pale blue rim of olenite on a black crystal of olenite–schorl tourmaline from an abyssal pegmatite at the locality Kuklík, near Kutná Hora, Czech Republic, has been chemically and structurally characterized. The optimized formula, calculated using chemical and structural data, is ^X(Na_(0.54)Ca_(0.14)K_(0.01)□_(0.…
On the basis of analyzing the brittleness, ductileity, and the removal mechanisms of the^nano-ZrO2 Ceramics, the critical ductile grinding depth formula of the nano-ceramics was established. Due to superductileity of the nano-ZrO2 ceramics, it couldn’t apply the formula of the common engineering ceramic material accor…
Abstract Two polymorphic modifications of calcium carbonate nanoparticles (calcite and aragonite) characterized by different shape and coated with fatty acids were used as reinforcement phases of Nylon 6. Nylon 6 based nanocomposites filled with 1% and 5% by weight of calcite and aragonite were prepared by melt mixing…
The elastic moduli for fine particle Zn x Cu 1-x Fe 2 O 4 (x = 0.2, 0.4, 0.6 and 0.8) spinel ferrite system synthesized by wet-chemical technique have been determined through infrared spectroscopy and X-ray diffraction pattern analysis. The force constants for tetrahedral and octahedral sites determined through IR spe…
The giant magnetoresistance (GMR) of multilayered Co∕Cu nanowires potentiostatically electrodeposited inside the pores of an anodized alumina template was studied in the current perpendicular to the plane (CPP) geometry. The maximum magnetoresistance change of 13.5% was observed for Co(8nm)∕Cu(10nm) nanowires at room…
Thin films of the Mn+1AXn (MAX) phase (M: early transition metal; A:A-group element; X: C and/or N; n=1–3) Ti2AlN were epitaxially grown onto single-crystal MgO(111) and MgO(100) substrates by dc reactive magnetron cosputtering from Ti and Al targets in an Ar∕N2 gas mixture at a temperature of 690 °C. To promote the n…
New metal-free, magnesium and zinc azaphthalocyanines ( AzaPc ) were prepared from 6-(3-tert-butylsulfany1-5,6-dicyanopyrazine-2-ylamino)hexanoic acid and its butylester and N,N-diethylamide. Their singlet oxygen production was measured by a dye-sensitized photooxidation of 1,3-diphenylisobenzofuran ( DPBF ) and Φ Δ v…