Materials Literature
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By patterning thin-film silicon solar cells with a periodic etching in addition to an antireflection coating, we increase the short-circuit current up to 36.5 %. The pattern and the coating are investigated to recognise different coupling regimes.
Permanent magnet (PM) machines can save energy compared with induction motors, because of the elimination of rotor copper loss and the reduction of stator iron losses. In PM machines, iron losses form a most portion of the total losses. In order to further reduce the iron losses, the method of beveling magnet edges is…
America possesses hundreds of years of low-cost coal resources that are becoming increasingly unpopular due to climate-change concerns. The promise of the nuclear gas reactor also remains out-of-reach as a result of technical and cost considerations, while the high cost of conventional nuclear power greatly hampers th…
We are investigating the micromachining of silica glass using extreme ultraviolet (EUV) light from laser-produced plasma (LPP). The present investigation deals with the ablation using EUV light of around 13.5 nm and 11 nm generated in laser-produced Sn plasma and Xe plasma, respectively. CO2 laser and Nd:YAG lasers we…
Creep tests were conducted under a condition of constant stress on two aluminum-based alloys containing particles: Al-5% Mg-0.25% Fe and Al-5% Zn-0.22% Fe. The role of grain boundary sliding was examined in the plane of the surface using a square grid printed on the surface by carbon deposition and perpendicular to th…
YBa 2 Cu 3 O 7-x (YBCO) films with BaGeO 3 (BGeO), BaSiO 3 (BSiO) second phase additions were processed by pulsed laser deposition. Sectored targets with BGO or BSiO wedges as well as pre-mixed targets of YBCO, BGeO or BSiO with appropriate compositions were used to deposit YBCO+BGeO and YBCO+BSiO films on (100) singl…
The Japan Atomic Energy Agency has been conducting R&D on thermochemical water-splitting Iodine-Sulfur (IS) process for hydrogen production to meet massive demand in the future hydrogen economy. A concept of sulfuric acid decomposer was developed featuring a heat exchanger block made of SiC. Recent activity has focuse…
Data on the distribution of periphyton in the cooling pond of the Khmelnitskiy NPS are given in the paper. The peculiarities of the distribution of Dreissena, other invertebrates, and filamentous algae in various biotopes are discussed.
Optical monitoring was performed during deposition of a variety of amorphous and polycrystalline silicon absorbers inside the chamber during solar panel manufacturing with the purpose of providing adaptive control of the film quality in real time. We monitored the specular and diffuse reflectance in a broad spectral r…
We report laser oscillation from waveguides inscribed in Nd-doped silicate glass. Laser action was observed at 1062nm for a pump of 808nm, with a slope efficiency of 15.0% and maximum output power of 7.5mW.
Coupling of multi physical parameters in extra high voltage SF6circuit breaker (EHV SF6CB) has been investigated. A 2D combined mathematical model of electric field, flow field and k - ¿ turbulent flow was developed, and the coupling condition of multi physical field of CB was established. And the computation has been…
Indirect broadband optical monitoring can be successfully applied for the production of three-line minus filters. Pre-coating of witness substrates used to monitor low index layers raises an accuracy of depositions of these layers.
A composite right/left-handed (CRLH) transmission line with demultiplexing property is proposed towards short-range functional wireless interconnects. The CRLH line is designed by analyzing dispersion relation of the microstrip line having a split-ring and a double-stub structure to realize frequency selective propert…
In Korea, newly advanced installation method of containment liner plates was developed and adopted for the construction of Shin Wolsong Unit 2 NPP. The key method of the new installation method of concrete liner plates was using a three-stage-based modularization (lifting of 3 plate ring module) instead of using conve…
Coupling between pressurized gas sorption and tensile behavior was studied in a polyethylene (PE). Tensile and creep tests into hydrogen (30 bars) and nitrogen (30 bars) atmosphere were compared to experiments into atmospheric air. Gaseous environment was shown to have noticeable influence neither on the modulus / yie…
The mechanical behaviors of solid-liquid two-phase materials are affected by environmental conditions because of the moist structure of the materials. Therefore, material tests to investigate the solid-liquid interactions in these materials should be conducted by considering various conditions such as multiaxial stres…
Collective motion, such as flocks of birds or shoals of fish, is ubiquitous in nature. Physicists describe such fundamentally out-of-equilibrium phenomena with the new conceptual background of polar active matter. It is a system of polar particles, i.e. enable to use provided energy in order to move in their own direc…
The purpose of this research is to clarify the requirements for the high output power SMA engine. The main results obtained by this research are as follows. In order to increase the output power of the SMA engine, it is necessary to make the radius of the high temperature wheel as small as possible, while the minimum…
Analysis of recent experimental impedance spectra and polarization curves of nickel/yttria-stabilized zirconia (Ni/YSZ) patterned anode of a solid oxide fuel cell (SOFC) are used to determine the limiting steps in CO electrochemical oxidation kinetics. A comprehensive 1D model is proposed for the prediction of the ste…
The composite films of amorphous and nanocrystalline Fe73.5Cu1Nb3Si13.5B9powders/butyl rubber were prepared by pressing in the mold to shape. The piezomagnetic properties of composite films were studied in the temperature range of 20-50 Celsius degree with theshielding properties in the frequency band (30kHz-6000MHz)…