Materials Literature
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Ultra-thin hydrogenated amorphous germanium films,with various thickness from 160 nm to 5 nm were grown by plasma enhanced chemical vapor deposition technique.The film structure was characterized by Raman spectroscopy,which exhibited a broad band centered around 280 cm-1 indicating their amorphous nature.The film thic…
We have developed a very sensitive transmission line-type thin film sensor. The sensor, consisting of a coplanar line, SiO2 film, and amorphous CoFeSiB film, was fabricated by sputtering, lift-off, and lithography processes. A phase change of 45 degrees/Oe was obtained at 1 GHz. We arranged two-dimensional stepping mo…
To obtain ideal 3D dimensional displays with crosstalk reduction,this paper researches how to arrange the elemental image and to match it with the reconstructed micro-lens array when a three dimensional scene is recorded by a camera array.The principle of integral imaging is analyzed and design parameters such as the…
It has already passed about 40 years since small-angle neutron scattering (SANS) technique was applied in structural analyses. SANS is now one of common tools in structure investigations of soft materials. In this article, we briefly describe the basis of neutron scattering, SANS instruments, and theories of SANS. Par…
The results of the study of static and dynamic magnetic properties of single-crystal spinel ferrites films. It is shown that the magnetic properties of films depend on the chemical composition, degree of structural defects and technological conditions of synthesis. We conclude that decreasing the cooling rate of the f…
Prior to our current work, impossibility of sub-wavelength rectangular MSA has been demonstrated. However, in this paper it has been possible to get unconventional low value of fundamental resonance (TM0-0 mode (0 < - < 1)) with quite satisfactory radiation using MNG metamaterial partially in rectangular patch antenna…
Solvent-induced crystallization effect has been found to be quite useful for the reduction of the thermal shrinkage of oriented poly(ethylene terephthalate) (PET) film. This method involves dipping of amorphous PET film into acetaldehyde for only a short time, which causes a drastic increase in the film crystallinity.…
Surface roughness-controlled nanocrystalline diamond film was fabricated as an undulated line and space pattern on a silicon oxide surface. To simulate a MEMS (Micro-/Electro-Mechanical System) and NEMS (Nano-/Electro-Mechanical System) patterned surface, 800 nm and 1 microm wide lines with a 200 nm wide space pattern…
Current trend of maximum utilization of properties of metal materials forces the fabricators to use different materials for different construction parts. Thus the fabricators of welded constructions, such as automobile constructions, today combine cold rolled steel plates with high strength low alloy steel as well as…
Several surface modification techniques are being used to improve the biocompatibility and performance of medical devices. These include the immobilization of bioactive molecules and the incorporation of hydrophilic polymer grafts onto hydrophobic surfaces. This paper describes a unique hemocompatible polymer, lubrici…
Aromatic amine compounds are widely used in various fields, especially for electrical devices because of their excellent electric properties. In this short review, the syntheses of macrocyclic compounds based on aromatic amines via Buchwald-Hartwig C-N coupling reaction are described. The structure as well as ring siz…
In 2010, the EU FP NanoSustain project (247989) has been successfully launched with the objective to develop innovative solutions for the sustainable use, recycling and final treatment of engineered nanomaterials (ENMs). The same year, NanoValid (263147), a large-scale integrating EU FP7 project has been initiated and…
Fabrication techniques of lightweight silicon carbide(SiC) mirror blank were researched and the key problems in the fabricating process were discussed.An advanced lost mould method was proposed to fabricate the excellent lightweight structure with a partly open-back.In consideration of the difficulty on fabricating Si…
GaN is considered as a promising material for high power,high temperature and high frequency microwave applications,due to the wide band gap,high thermal stability and high breakdown voltage.Due to lack of suited homosubstrates,GaN is currently grown on heterosubstrates where SiC is the most popular choice for commerc…
パルス法NMRの測定で得られる FID signal は高分子物性に関する情報が非常に多いデータである。この FID signal を直接数値微分することにより緩和スペクトルを求めるプログラムの作成を行ってきた。今回，我々はスチレン系ブロックポリマーについてパルス法 NMR と動的粘弾性 (DMA) の測定を行い，緩和スペクトルと DMA の温度分散との関係を解析した。その結果，次のことが明らかとなった。 (1) -50℃から0℃の低温域では緩和スペクトルのピーク時間が大きくシフトする温度領域と，損失弾性率E''が変化する温度域が同じである。これらはともに高分子の流動性の変化を測定していることになる。 (2) 100℃付近の40µ…
The superheated steam has used in the field of food engineering when it has the remarkable character such as the operation in the ordinary pressure, the good efficiency for heat transfer and the treatment in the steam without oxygen. It must be applied for the recycling process to recover the metal and remove the impu…
Fully reversed tension-compression low-cycle fatigue tests controlled by both of total strain and stress were conducted on extruded AZ31 magnesium alloy using smooth round bar specimens in ambient atmosphere at room temperature. The stress-strain hysteresis loops exhibited a characteristic asymmetric shape with a posi…
To reduce the weight of buildings, the lightening of slabs would be very effective way because the slabs are generally the heaviest members in the building skeleton. In this paper, the sandwich panel system has been investigated on account of the reduction of self-weight as well as the increase of bending rigidity. Th…
Gentiana kurroo is a small perennial herb, with a stout rhizome bearing decumbent flowering stems, commonly found in North –Western Himalayas, at altitudes of 5,000−11,000 ft. Due to multiple uses, species is being over exploited in its natural habitats at the Garhwal Himalaya. The propagation by rhizome has emerged a…
The master curve is an appropriate tool to describe the behavior of the different asphalt mixtures. We can analyze the attitude of the asphalt at very special time and frequency range using master curve method and in this extreme condition we could not solve without it. Different shift coefficients calculation's metho…