Materials Literature
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An H2 molecule can bind molecularly on Ni4+ but it binds exclusively dissociatively on Ni5+ and Ni6+ and the adsorption behavior correlates with the relative reactivity of the metal clusters towards H2.
Abstract The supramolecular aggregation properties of new prototypes of artificial amphiphiles consisting of fullerene or calixarene building blocks serving as platforms for the connection of hydrophobic and dendritic hydrophilic groups are reported. Very water-soluble monoadducts of C60 carrying a defined number of n…
Abstract This paper presents material and gas sensing properties of Pt/SnO2 nanowires/SiC metal oxide semiconductor devices towards hydrogen. The SnO2 nanowires were deposited onto the SiC substrates by vapor-liquid-solid growth mechanism. The material properties of the sensors were investigated using scanning electro…
One of the key challenges in computational biology is prediction of three-dimensional protein structures from amino-acid sequences. For most proteins, the “native state” lies at the bottom of a free-energy landscape. Protein structure prediction involves varying the degrees of freedom of the protein in a constrained m…
We have recently reported on the formation of composite gel vesicles prepared by the photopolymerization and crosslinking of poly(N-isopropyl-acrylamide) [poly(NIPAM)] inside phospholipid giant unilamellar vesicles (GUVs). Here we present a detailed study of the thermo-responsive behaviour of such composite vesicles.…
We have developed nitride-based multiquantum well light-emitting diodes (LEDs) with E-beam evaporated Al-doped ZnO (AZO) transparent contact layers (TCLs). With injection current, it was found that forward voltages were 3.32, 3.33, and , while output powers were 10.1, 11.8, and for the indium-tin-oxide LED, E-beam eva…
We isolated 8 novel 28-noroleanane-derived spirocyclic triterpenoids with unusual skeleton structures, phlomisone (1), phlomistetraol A (2), phlomistetraol B (3), phlomistetraol C (4), phlomispentaol (5), phlomishexaol A (6), phlomishexaol B (7), and phlomisin (8), from the ethanol extract of Phlomis umbrosa rhizomes.…
Incipient fault diagnosis of a power transformer is greatly influenced by the condition assessment of its insulation system specifically oil/paper insulation. In recent times, a number of intelligent methods based on AI techniques, Artificial Neural Network and Fuzzy Logic have been used to predict incipient faults in…
In the paper an improved model of the thermoelectric generator (TEG) is shown. The electrothermal model was implemented into electronic circuits simulator SPICE and it was used during simulation of energy harvesting processes. In the latest version a dependence of the internal electrical resistance of the Peltier modu…
Discontinuous volume changes of lipophilic polyelectrolyte gels in non-polar organic solvent mixtures are demonstrated towards the construction of stimuli-sensitive materials in media other than water.
The continuous casting process in steel production is a highly efficient and productive process. Since this process was first applied to steel foundations, rapid progress has been made. Recently, trends in continuous casting have been focused on near net shape casting, high speed casting and the adoption of electromag…
Abstract 4‐tert‐Butylpyridine (4‐TBP) has been widely used as additive in dye‐sensitized solar cells (DSC), owing to its improvement of the fill factor and the open circuit voltage of DSC. In this paper, the adsorption of 4‐TBP on the rutile TiO2(110) surface in DSC was studied by using the density functional theory a…
In order to examine the mechanical properties of a biomedical Co-33Cr-5Mo-0.3N alloy at elevated temperatures, tensile tests have been conducted in the temperature range from room temperature to 1373 K at initial strain rates of 1.0×10−1 s−1 and 1.4×10−4 s−1. The 0.2% proof stress and the tensile strength as a functio…
In the Ultra-steel project at the National Institute for Materials Science (NIMS), which run from 1996 to 2005, high-Si–Al-content ultrafine-grained (UFG) weathering steel was developed by grain refinement and weathering guidance. It was found that this steel has excellent strength, toughness and corrosion resistance.…
The X-ray structural characterization of tritylphosphonic acid, Ph3CPO3H2 (), reveals that it possesses three different structural forms (a hexameric cage, a two-dimensional polymeric sheet and a dimer) depending upon the solvent used for crystallization. The reaction of cerium nitrate with under solvothermal conditio…
The helium-cooled, graphite-moderated Very High Temperature Reactor (VHTR) has become the centerpiece of the U.S. Department of Energy’s (DOE) Next Generation Nuclear Plant (NGNP) program. The NGNP program aims to construct a VHTR prototype, with the participation of industry, by the year 2021.
The prediction and distribution of operational iron losses in synchronous machines are of great importance in order to improve the design procedure and yield more efficient generators. To achieve this, finite element analysis was utilised to analyse a Cummins Generator Technologies alternator and, using the required t…
New ortho-phenylene ethynylene oligomers are shown to fold into helices of up to two full turns. Evidence of folding is shown by both 1D NMR, where π–π stacking is explored through both solvent and temperature titrations, as well as by 2D ROESY NMR which confirmed folding but also showed the dynamic nature of these he…
A systematic study on the evolution of microstructure, texture and grain boundary character distribution has been carried out for an industrially produced interstitial free (IF) steel after cold rolling by 90 and 98% and also after recrystallization anneal. The deformation microstructure shows refinement of the cell s…
This paper is concerned with the development of an analytical method for calculating the air-gap harmonic fields produced by current flowing in the bars of a cage rotor with closed rotor slots. The method defines harmonic correction factors which are used to modify the magnitudes of the flux density waves produced by…