Materials Literature
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Energy harvesting from human body has been undergoing an interesting and quick development thanks to the technological availability of new electronic components and the growing of different applications, in particular, for biomedical and social impacts on human beings' daily life. The main scope of this paper is to mo…
Low operation voltage is one of the most crucial factors for developing mobile liquid crystal display devices. Nanoparticle doping is a convenient method of attaining low threshold voltage. A type of widely studied semiconductor material, CdS nanoparticles, was doped into 4'- n -pentyl-4-cyanobiphenyl (5CB) nematic li…
Department Editor Books for review should be sent to Jonathan Borak, MD, Associate Clinical Professor of Medicine and Epidemiology, Yale School of Medicine, 234 Church Street (#1100), New Haven, CT 06510; E-mail: [email protected].
The surface of magnesium–calcium implants (MgCa0.8) was differently treated which resulted in cylinders with smooth, sand-blasted, or threaded surface. These cylinders were implanted into the medial femoral condyle of New Zealand White rabbits. The degradation behavior and the reaction of the organism were assessed by…
Chemical joining of aluminum to steel parts is one of the main challenges in the automotive industry to achieve sound economical solutions for required automobile weight reduction. The cold metal transfer (CMT) is a fusion welding process developed to meet that challenge. It is shown in this paper how the choice of pr…
In this paper, we present results on water flow past randomly textured hydrophobic surfaces with relatively large surface features of the order of 50 μm. Direct shear stress measurements are made on these surfaces in a channel configuration. The measurements indicate that the flow rates required to maintain a shear st…
A novel column based on silica containing immobilized carbon nanotubes (CNTs) was developed and evaluated in terms of its binding efficiency and resolution. First, CNT functionalized with amino groups (CNT-NH(2)) were prepared via chemical modification of carboxylic groups introduced on the CNT surface. Secondly the c…
Abstract This review is focused on the preparation and potential applications of hydrotalcite like compounds organically modified by ion-exchange procedure and the data reviewed have been supplemented with unpublished results. It is divided in two Parts. Part I deals with intercalation of biologically active species s…
Superconductivity in LaFeAs1-xPxO: Effect of chemical pressures and bond covalency, Wang, Cao, Jiang, Shuai, Tao, Qian, Ren, Zhi, Li, Yuke, Li, Linjun, Feng, Chunmu, Dai, Jianhui, Cao, Guanghan, Xu, Zhu-an
A mechanistic model of uniform hydrogen sulfide (H2S) and hydrogen sulfide/carbon dioxide (H2S/CO2) corrosion of mild steel is presented that is able to predict the rate of corrosion with time. In the model, the corrosion rate of mild steel is primarily affected by H2S concentration, temperature, velocity, and the pro…
The reaction of peroxotungstates (H(2)WO(4) + H(2)O(2)) with H(2)SeO(4) gave the novel selenium-containing dinuclear tungsten species, (TBA)(2)[SeO(4){WO(O(2))(2)}(2)] (I, TBA = [(n-C(4)H(9))(4)N](+)), which was characterized by elemental analysis, IR, Raman, UV-vis, (77)Se NMR, (183)W NMR, and CSI-MS. Various kinds o…
Although carbon nanotubes (CNTs) have been shown to nonspecifically bind proteins through charge complementary, pi-pi stacking or hydrophobic interactions, they have not been shown to bind to a specific site on proteins. By generating surface molecular diversity, we created functionalized CNTs that recognize and bind…
Porous poly(acrylamide) was synthesized using calcium carbonate microparticles and subsequent acid treatment to remove the calcium carbonate. Methylenebisacrylamide and ammonium persulfate/sodium metabisulfite were used as crosslinking agent and redox initiator, respectively. The porous structure of resulted hydrogels…
The present paper aims to study the possibility to modify the properties of poly(vinyl alcohol) (PVA) hydrogels prepared in the presence of different salt types (Na2SO4, NaCl and NaNO3) in order to extend the nature of the salts already used in obtaining films or gels, to expand their concentration domains and to expl…
Mutual radiation grafting technique was used to graft acrylic acid on micrometer thick micro-porous polypropylene membrane using high-energy gamma radiation. Grafting could not be achieved in aqueous acrylic acid solution. The presence of Mohr’s salt effectively retarded the homopolymerization of acrylic acid but did…
Automated peak identification in electron beam-excited X-ray microanalysis with energy dispersive X-ray spectrometry has been shown to be subject to occasional mistakes even on well-separated, high-intensity peaks arising from major constituents (arbitrarily defined as a concentration, C, which exceeds a mass fraction…
Nanofabrication via self-assembly of hybrid materials into well-defined architectures is essential for the next generation of miniaturized devices. This paper describes our group's achievements towards the development of multifunctional nanostructures via self-assembly of hybrid systems based on the block copolymer PS…
An Eu 2+ -activated AlN phosphor was synthesized by firing the powder mixture of AlN, α-Si 3 N 4, and Eu 2 O 3 at 1500−2050 °C for 4 h under 1.0 MPa N 2 . The phase purity, photoluminescent properties, thermal quenching, and quantum efficiency of the fired samples were investigated. A single AlN wurtzite phase was for…
We present calculations of the free energy, and hence the melting properties, of a simple tight-binding model for transition metals in the region of d-band filling near the middle of a d-series, the parameters of the model being designed to mimic molybdenum. The melting properties are calculated for pressures ranging…
We present theory and simulation of simultaneous chemical demixing and phase ordering in a polymer-liquid-crystal mixture in conditions where isotropic-isotropic phase separation is metastable with respect to isotropic-nematic phase transition. It is found that mesophase formation proceeds by a transient metastable ph…