Materials Literature
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Major research efforts have been focused towards developing high dielectric constant ( ε ), low loss (tan δ ) and high electrical breakdown dielectrics for energy storage capacitors. Combining the low cost, ease of processing and high breakdown field strength (BDS) of polymers with the high ε ceramic fillers will resu…
The linear thermal expansion coefficients αL of the higher manganese silicide compounds are calculated using a combined approach involving Density-Functional Theory calculations, an empirical relation and experimental data. Since it has been reported that the linear thermal expansion coefficient and the cohesive energ…
Gigacycle fatigue tests were conducted on double-melted SCM440 low-alloy steel using larger and conventional specimens and comparing the results with those of single-melted steel. Although all specimens experienced internal fractures, size effects were minor in the double-melted steel, unlike in the single-melted stee…
Genetic algorithm is employed to survey an empirical potential energy surface for small Na(x)K(y) clusters with x + y ≤ 15, providing initial conditions for electronic structure methods. The minima of such empirical potential are assessed and corrected using high level ab initio methods such as CCSD(T), CR-CCSD(T)-L a…
A series of polymer solar cells (PSCs) based on poly[(4,8-bis-(2-ethylhexyloxy)-benzo[1,2-b:4,5-b′(dithiophene)-2,6-diyl-alt-(4-(2-ethylhexanoyl)-thieno[3,4-b]thiophene)-2,6-diyl] (PBDTTT-C) and [6,6]phenyl-C71-butyric acid methyl ester (PC71BM) were fabricated with various anode buffer layers. The power conversion ef…
We present a new transparent monolithic mesoscopic solid-state dye-sensitized solar cell based on trilamellar films of mesoscopic TiO2 nanocrystalline photoanode, a ZrO2 insulating layer and an indium tin oxide counter electrode (ITO-CE), which were screen-printed layer by layer on a single substrate. When the thickne…
The transition of the creep deformation mechanism in the low-stress region of Grade P92 high Cr ferritic heat-resistant steel was investigated by a helicoid spring creep test. Specifically, the effect of variation in the microstructure of steel on creep deformation behavior was evaluated by subjecting samples to therm…
Due to an increasing usage of dual phase (DP) steels in the automotive industry, it is necessary to fully investigate the mechanical response of DP steels during sheet forming processes or crash events. In this work, the mechanical response of DP600 obtained at different strain rates was used to calibrate the Yld2004-…
We construct a photoinduced methane hydroxylation system by the combination of thylakoid and methane monooxygenase from Methylosinus trichosporium OB3b.
Remarkable Charge-Discharge Mechanism for a Large Capacity in Fe-Containing Li2MnO3 Cathodes, Yuge, Ryota, Toda, Akio, Kuroshima, Sadanori, Sato, Hideyuki, Miyazaki, Takashi, Tabuchi, Mitsuharu, Nakahara, Kentaro
We used the Stokes polarimeter for measuring the magnetically linear birefringence and dichroism in composite magnetic fluids (CMFs). CMFs were prepared by doping nonmagnetic microspheres into pure magnetite ( Fe3O4) MFs. Experimental results show pure Fe3O4MFs of different volume particle concentrations and CMFs dope…
Three stages of step-edge induced selective growth were proposed: step-edge induced growth, layer-by-layer growth and central nucleation growth.
Propylated cyclotriveratrylene ligands with N-donor groups form coordination polymers where the propyl groups aggregate or form a Pd 6 L 4 cage.
A gas phase mechanistic investigation of the chemical vapor deposition (CVD) of titanium nitride (TiN) from the decomposition of Ti(NMe2)4, tetrakis(dimethylamido)titanium (TDMAT) as a single source precursor as well as from the reaction of Ti(NMe2)4 with NH3, i.e., the ammonia assisted mechanism is carried out and re…
Solid state supramolecular assembly of a novel C3-symmetric tripodal luminescent organic molecule has been explored to understand the molecular aggregation and the different possible interactions between host–host and host–guest pairs. Interesting capsule voided confinement of guest molecules and the helical arrangeme…
Rockfall impact is one of the fatal hazards in pipeline transportation of oil and gas. The deformation of oil and gas pipeline caused by rockfall impact was investigated using the finite element method in this paper. Pipeline deformations under radial impact, longitudinal inclined impact, transverse inclined impact, a…
The corrosion resistance of multilayered Sn/Ag 3 Sn films with a 30–80 nm-thick Ag layer on reflowed Sn layer (i.e., melting and resolidification of the electrodeposited Sn) on Cu alloy substrates was investigated by accelerated sulfidizing tests in (NH 4 ) 2 S x solutions and accelerated aging tests at 473 K, and com…
A non-circular drawing sequence was investigated for manufacturing medium carbon steel wires with improved spheroidization of cementite for better cold workability compared to those produced by the conventional wire drawing. The wire drawing and non-circular drawing processes with 20% area reduction per each pass were…
In co-operation with the German Aerospace Center, the Solar-Institut Jülich has been analyzing the different technologies that are available for methanol production from CO2 using solar energy. The aim of the project is to extract CO2 from industrial exhaust gases or directly from the atmosphere to recycle it by use o…
PURPOSE: To assess the effect of a rectal enema on interfraction prostate movement in bone alignment (BA) for prostate radiotherapy (RT), we analyzed the spatial difference in prostates in a bone-matched setup. MATERIALS AND METHODS: We performed BA retrospectively with data from prostate cancer patients who underwent…