Materials Literature
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A new method for producing gapless biaxial microlens array is proposed for a dual-directional light-control film with a high fill factor. Three steps in this production technique are included for formations of semiellipsoid microlens array with low fill factor to be caulked into gapless biaxial microlens array mold in…
When grain size decreases to the nanometer scale, dislocation structures hardly form in the grain; hence, it cannot be expected to obtain a large work hardening rate for nanostructured materials within the conventional framework of the theory based on the dislocation-dislocation interaction. However, the strength cont…
Since titanium has a corrosion resistance and biological compatibility, it has recently been used in aeronautics and biomedical fields such as the development of artificial bone, medical tools and equipment. These specific applications often require a mirror-like surface in order to achieve an optimum efficiency and q…
In Daikin Industries, we are developing and applying the simulation technology that was accumulated in the air-conditioning and refrigerator development to the field of fluorine chemistry. It is found that the effect of the use of the simulation technology is obtained remarkably in the following areas of fluorine chem…
In this research, the fabrication conditions of Ti-29Nb-13Ta-4.6Zr(TNTZ) alloy by pulse-current sintering and the properties of the alloy were investigated experimentally. The sintering was performed at various temperatures in a vacuum, and then the solution treatment was carried out in Ar gas atmosphere. As a result,…
This paper presents the results from an experimental study about high speed turning of stainless steel with the primary focus on the influence of changing shape of tool inserts upon the tool life. In the experiments of the present study, stainless steel SUS304 was turned under jet coolant conditions with three differe…
Tremendous recent progress in nanofabrication capabilities has made high-quality single-atomic layers and nanostructures with dimensions well below 50 nm commonplace, enabling unprecedented access to materials at the nanoscale. However, tools and techniques capable of characterizing the properties and function of nano…
In this study, advanced repairing technology based upon High Velocity Oxy-Fuel (HVOF) spraying technique, which would be replaced with typical weldment technique, has been interested. Thus, the purpose of this study is to show adhesion strength of the component repaired by HVOF spray technique in comparison with other…
Thermal fragmentation process plays a key role in Fuel Coolant Interaction (FCI) during NPP's severe accidents, which significantly affects the heat transfer and determines the ratio of heat transferred to mechanical energy. Although various thermal fragmentation models have been raised, the phenomenon is not well und…
Functional group on silica surface is controlled for modification of wettability. Silica substrate is firstly terminated with trifluoromethyl group (-CF_3) by silane coupling treatment, which exhibits high hydrophobicity. The surface is then modified by laser irradiation with various power and scan speed to control qu…
Much attention has recently been given to poly(lactic acid) (PLA) because it is degraded to nontoxic lactic acid through non-enzymatic hydrolytic degradation in the body. As one of the methods to improve mechanical properties of PLA, orientation of molecular chains by drawing has been investigated. In this study, PLA…
The relationship between magnetic phase transition temperatures (Curie temperature: Tc, ferromagnetic-antiferromagnetic transition temperature: T0) and lattice distortions in L10 FePt1−xRhx thin films (6 nm thick) were studied. Thin film depositions on varied substrates modifies lattice constants due to misfits betwee…
The reprocessing of spent nuclear fuels at the Rokkasho reprocessing plant generates radioactive wastes in solid and liquid forms. These wastes contain a mixture of radioactive nuclides such as Transuranium (TRU) elements, fission products (FP), and corrosion products (CP). The waste processing methods prior to dispos…
The oil separation system plays an important role in improving the quality of oily metal cutting chip as recycled materials disposed from metalworking factories. In this paper, a practical circulation-type superheated steam degreasing system, which is applied to oily metal cutting chip disposed from a metalworking fac…
Dry textiles are usually incorporated into the RTM method as a fibrous reinforcing material. The architecture of the textile material affects both the permeability and material properties of the final product. We optimized the textile architecture to improve manufacturing efficiency and product quality. In this optimi…
The pebble bed reactor (PBR), a kind of high-temperature gas-cooled reactor (HTGR), is expected to be among the next generation of nuclear reactors as it has excellent passive safety features, as well as online refueling and high thermal efficiency. Rock-like oxide (ROX) fuel has been studied at the Japan Atomic Energ…
Corrosion is one of the basic reasons of the ship hull strength retrogression; therefore, it is necessary to control the operational mode of the systems of the ship steel hull electrochemical prevention from corrosion. At the same time, it is necessary to estimate the ship steel hull potential function by means of mob…
グルコース単位が環状に繋がったホスト分子シクロデキストリン(CD)および酸化還元応答性ゲスト分子フェロセン(Fc)を側鎖に導入したポリマーや高分子ゲルを用いて，酸化還元応答性超分子材料を創製した．側鎖にCDを修飾したポリマーとFcを修飾したポリマーとの混合により超分子ヒドロゲルが形成された．ホスト–ゲスト相互作用の可逆性に起因する自己修復性を見いだし，Fcの酸化還元に伴うCDとの相互作用の変化を利用してこれをオン・オフ制御した．この超分子ネットワークに化学架橋を導入すると，酸化還元に応じたゲル内部の架橋密度の変化に伴い膨潤・収縮するゲルとなった．さらにCDおよびFcを別々のゲルに導入するとそれらが接着することを見いだし，Fcの特徴…
O receptor P2X7, contido na família de receptores P2, é um receptor inotrópico purinérgico, cátion seletivo, ativado por nucleotídeos (ATP). Esses receptores são expressos em células do sistema nervoso central, periférico e células da linhagem hematopoiética além de estarem envolvidos em diversos processos biológicos…
Ethanol has the same theoretical air-fuel ratio as DME but has different reactivity. In this study, effect of ethanol blending on ignition and combustion of DME spray was investigated by numerical calculation. As the results, the ignition timing retards and the equivalence ratio in a spray shifted toward lean with eth…