Materials Literature
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A new dynamic drape automatic measuring system integrating Cusick’s drapemeter principle with the image analysis technique was devised to automatically measure the static and dynamic drape coefficients of fabrics. The relationship for four natural-fibre woven fabrics between the fabric drape coefficient and sixteen ph…
The plethora of drug therapies and types of drugs demand different formulations, fabrications conditions and release kinetics. No single polymer can satisfy all the requirements. Therefore there have been tremendous advances in area of biodegradable copolymers over the last 30 years. This article reviews current resea…
The authors studied the thermoelectric properties of LaPdBi and GdPdBi half-Heusler compounds. Polycrystalline samples were prepared by a spark plasma sintering (SPS) technique, and their thermoelectric properties were measured above room temperature. The electrical resistivities of both samples show a semiconductor l…
Vietnam is situated in the wet tropical zone; thus, atmospheric conditions are characterized by high temperatures and a long time of wetness (TOW). In addition, the salt air coming in from the sea causes a high chloride concentration in coastal areas. Furthermore, Vietnam is a developing country, which means that air…
The complexes Ln2L3·xH2O (L = 1,2-benzenedisulfonate; Ln = Sc (1), x = 14; Ln = Y (2), x = 16; Ln = La (3), x = 7; Ln = Ce (4), x = 6; Ln = Pr (5), x = 10; Ln = Nd (6), x = 18; Ln = Sm (7), x = 18.25; Ln = Eu (8), Gd (9), Tb (10), Ho (11), Yb (12), Lu (13), all x = 16) were synthesised by treating Ln2O3 with an aqueou…
The surface treatment of glass beads, chosen as model filler, with silane coupling agent with multilayer coverage was carried out. The treated beads were incorporated with poly(vinyl chloride), chosen as a typical ductile polymer. The effects of the organic functional group of silane and silane chain length on the mec…
The polymorphic behaviour of the aromatic ketone, benzophenone, which is a conformationally flexible molecule and forms crystal structures dominated by van der Waals intermolecular interactions, is examined. Crystallization of this material from the undercooled molten state yields the two known polymorphic forms, i.e.…
In order to study the twinning behavior of polycrystalline magnesium at room temperature, acoustic emission (AE) was measured during the compression process at an intermediate strain rate along the extrusion direction. Microstructure evolution was quantitatively characterized by the twinning area fraction and the stra…
The isothermal kinetics curves of the swelling of a poly(acrylic acid) hydrogel in distilled water and physiological solution at temperatures ranging from 20 to 40 ?C were determined. The possibility of applying both the Fick?s kinetics model and kinetics model of the first order chemical reaction to the swelling kine…
Abstract Luminescent Y 3(1‐x) Al 5 O 12 :Ce 3+ 3x (YAG: Ce 3+ ) (x = 0.001 to 0.05), Lu 2.97 Al 5 O 12 :Ce 3+ 0.03 (LuAG: Ce 3+ ) and Y 3‐0.03‐3y Al 5 O 12 :Ce 3+ 0.03 , Tb 3y (YAG: Ce 3+ ,Tb 3+ ) (y = 0.1 and 0.2 phosphor powders have been successfully prepared by the sol‐gel route from alkoxide precursors. Purity of…
This report describes a preliminary study to investigate the effect of structural variations in a bifunctional ligand being developed for targeted PARACEST applications. Utilizing Eu-DOTA-4AmCE as the functional PARACEST core, a nitro-aromatic functionality was incorporated to provide the point for conjugation. This i…
The synthetic strategy for the preparation of a TTF donor, π-appended with a spin bearing verdazyl radical has been developed. UV-Vis, electrochemical and EPR studies reveal that this is an attractive magnetic building block for subsequent oxidation that could afford new conducting and/or magnetic systems.
Japan is located in the Asian monsoon climatic zone and these climatic conditions are favourable for growing rice in summer. In every age, rice fields have produced the staple food of the Japanese people and have also been the source of the multifunctional roles of agriculture. This paper describes the evolution of ri…
Nanocrystalline diamond films have attracted considerable attention because they have a low coefficient of friction and a low electron emission threshold voltage. In this paper, the author reviews the plasma-enhanced chemical vapor deposition (PE-CVD) of nanocrystalline diamond and mainly focuses on the growth of nano…
The shape of silver sulfide nanomaterials was successfully controlled by understanding the origin of the mixed-shape problem.
We use the Landau–de Gennes model to investigate the magnetic field‐induced instabilities in liquid crystals. In particular, we examine the change of weak and strong stabilities in the pure smectic states and in the pure nematic states. Motivated by de Gennes’ discovery on the analogies between liquid crystals and sup…
Abstract Five new pregnane glycosides, caradalzielosides A–E ( 1 – 5 ), were isolated from the aerial parts of Caralluma dalzielii. Their structures were elucidated by extensive 1D‐ and 2D‐NMR spectroscopic analysis as well as by HR‐FAB‐MS experiments.
A new test rig, founded in part by Rolls-Royce Fuel Cell Systems Limited, by the EU integrated project ‘FELICITAS’, and by the national project PRIN-2005, has been designed and built at the University of Genova to study different early start-up layouts and strategies for solid oxide fuel cell (SOFC) hybrid systems, us…
The present work uses X-ray photoelectron spectroscopy (XPS) to compare the chemical composition of the outer surface of porous and sealed anodic films on commercially pure Al and on , , and alloy substrates. The study also considers some inner surfaces, obtained by mechanical abrasion and argon ion bombardment, in th…
The growth and self-assembly of phenylalanine derived bolaamphiphiles was investigated. The self-assembly process was studied at hydrophobic–hydrophilic interfaces and under aqueous conditions at different pH. The formation of various structures in microscale and nanoscale was examined using atomic force microscopy, t…