Materials Literature
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A thermal model for predicting the performance of a single-stage metal hydride based heat transformer (MHHT) is presented. The pair of metal hydrides chosen for the present study is LaNi 4.7 Al 0.3 and LaNi 5 .The performance of the system is predicted by solving the combined energy and mass ( heat and hydrogen) trans…
Oriental Journal of Chemistry is a peer reviewed quarterly research journal of pure and applied chemistry. It publishes standard research papers in almost all thrust areas of current chemistry of academic and commercial importance. It provides a platform for rapid publication of quality research papers, reviews and ch…
The adsorption of N(2) on the rutile TiO(2) (110) surface in the limit of low coverage has been studied as a prototype example for the adsorption of non-polar molecules on strongly ionic oxide surfaces. We employed for this study an embedded cluster ansatz in combination with density functional theory and wavefunction…
We report noise-induced threshold shifts on various electrohydrodynamic instabilities (EHIs) in a nematic liquid crystal. There exist three characteristic frequencies ( f 1 , f 2 , and f 3 ) in the ac-driven EHI system. By controlling the cutoff frequency f c of external multiplicative noise, we examine the dependence…
The anomalous (τ < 10 ns) luminescence of wide bandgap crystals of lithium-gadolinium orthoborate Li(6)GdB(3)O(9) doped with trivalent cerium ions, has been revealed for the first time and investigated through the low-temperature time-resolved vacuum ultraviolet synchrotron spectroscopy. It was shown that the optical…
Multiferroic behavior of Bi4 - xNdxFeTi3O12 (0.0 ≤ × ≤ 0.25, × = 0.05) ceramic nanoparticles prepared through the egg-white method was investigated. The dielectric properties of the samples show normal behavior and are explained in the light of space charge polarization. Room temperature polarization-electric field (P…
Fast firing has been used to produce relatively dense ceramics in periods of time shorter than 5 min. High heat inputs during fast firing originates changes in the internal structure of the ceramic compact. The amount of energy available for sintering increases by the formation of a dense outer layer which controls th…
This paper concerns the valorization of two regenerated low-density polyethylene (rLDPE) samples coming from dirty wastes by blending with polystyrene (PS) in the presence of a compatibilizer. The first step consisted in the determination of the physico-chemical properties of LDPE samples (density, melt flow index, wa…
To study the behaviour of shotcrete under dynamic load, a non-destructive laboratory experiment was set up with P-wave propagation along a concrete bar, with properties similar to rock. Cement-based mortar with properties that resemble shotcrete was applied to one end of the bar with a hammer impacting the other. The…
Se presenta la flora fitoplanctónica de Laguna Lagartos, Quintana Roo, basada en la observación de muestras obtenidas entre noviembre de 2007 y septiembre de 2008. Un total de 67 taxa fueron determinados y clasificados en seis divisiones. Bacillariophyta (28 taxa), Cyanoprokaryota (22 taxa), Chlorophyta (7 taxa), Dino…
Whereas the nature of healing reaction in skeletal muscle following implantation of biomaterial has been extensively studied, the extent of variation in cell phenotypes is poorly known. Here, we studied the phenotypic alteration of cell types following injury in skeletal muscle of rabbits implanted with a commonly use…
The research on enhancing the performance of ultrasonic reactor for the purpose of microorganisms' inactivation is still ongoing. In this work, covering the cavitation chamber bottom with a corrugated surface as a source for heterogeneous cavities has been proposed as a simple modification to improve ultrasonic deacti…
The effects of processing conditions such as pressure, temperature, and holding time on the flexural properties of bagasse and bamboo biodegradable composites were investigated. Each sample of bagasse or bamboo was mixed with a corn-starch-based biodegradable resin and fabricated by a hot press forming method. The cro…
Over the past decades there have been significant advances in transmission electron microscopy for biological applications, including in energy filtering and spectrum imaging, which are techniques based on the principles of electron energy loss spectroscopy. These imaging modalities allow quantitative mapping of speci…
The nature of the reentrant nematic phase has been actively investigated both experimentally and theoretically during the past few decades. Most studies concluded that, as concerning molecular dynamics, a reentrant nematic phase is essentially analogous to a conventional nematic one. Recent computer simulations [Mazza…
Achieving control of the nanoscale structure of binary alloys is of paramount importance for the design of novel materials with specific properties, leading to, for example, improved reaction rates and selectivity in catalysis, tailored magnetic behavior in electronics, and controlled growth of nanostructured material…
The purpose of this study was to facilitate and improve the methodology used for hot mixture asphalt fracture evaluation and to establish a procedure to overcome the difficulty of preparation of hot mixture asphalt beam samples for fracture testing. This research investigated and compared the stress intensity factor (…
Parallel flows in the scrape-off layer (SOL) of a tokamak are analyzed with emphasis on the narrow SOL. It is demonstrated that in addition to the known Pfirsch–Schluter flows there exists a poloidally independent parallel flow in the co-current direction driven by the parallel viscosity. The flow is proportional to t…
Abstract We investigate the effects of a polyelectrolyte chain's configurational fluctuations on the counterion condensation theoretically. Starting with a straight‐line configuration where the polyelectrolyte chain is totally stretched, the configurational fluctuations are developed by relaxing the stretch. The amoun…
In most FEM codes, the isotropic-elastic and transversely anisotropic-elastoplastic model using Hill’s yield function has been widely adopted in 3D shell elements (modified to meet the plane stress condition) and 3D solid elements. However, when the 4-node quadrilateral plane strain or axisymmetric element is used for…