Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
ここでは,GA溶液固定心膜の材料としての論点が幾つかあるので,先天性/小児における使用する場合のポイ ントも中心に議論していくことにする. 自己心膜は小児心臓外科領域において再建パッチまたはバッフルを中心として幅広く使用されてきたが,近年弁 膜症手術においてもその適応が拡大されてきている.手術中のいつでも使用可能であり,滅菌状態であり,免疫反 応がなく,無料であるなどの多くの利点を持っている.フリーグラフトとして新鮮状態またはグルタールアルデヒ ド溶液固定で,また有茎新鮮の状態でも使用可能である.いずれの様式で用いても心膜組織自体は時間とともに肥 厚や繊維化が生じるがダクロンなどの異物のように材質周囲の繊維化はみられない. 心膜の…
In heat-resistant alloy cutting, a chamfered cutting edge, which is employed in order to strengthen an edge of a sintered tool, is commonly used. In this case, the behavior of a BUE (built-up edge) formed on the chamfered land is very important factor for determining the wear process of the cutting tools. It has been…
The Drying process is very important in making aggregates orientation film by application of chromonic liquid crystals; Biebrich Scarlet Sodium Salt 6wt%(BSS6) and Sunset Yellow FCF 36wt%(SY36). The effect of drying process was investigated by using polarimetry. We measured the extinction distribution of the whole app…
The trowel forged by Japanese swordsmith process (old Mizunaze trowel) handed down to Kyo-wall craftsman has been verified that it has the effect of improving the fluidity of kneaded Kyo-wall compound and exhibiting a delicate aesthetic appearance. In previous reports we proposed the dispersed structure models of kyo-…
配管は、社会インフラの水、ガスから、産業界での油圧、薬品、反応ガス…など、あらゆる分野に使われており、これらの特に締結部の漏れ等の耐久性確保は、社会・プラント・設備全体の安全性確保の上で非常に重要な技術課題となってきている。本報告はこれら配管継ぎ手の中でも産業界で広く用いられているくい込み型鋼管継手(Bite Type Tube Fittings)を対象に、繰返し内圧、曲げ振動、負荷下でのねじ締結部位の力学敵挙動解析、ゆるみ評価を行い、ねじ嵌めあい面でのすべり発生に基づいた簡易ゆるみ限界基準を導いた。これらの基準予測式の妥当性を確認するために、各種不可の繰返し試験を行い、ゆるみ等の実測から予測式の妥当性を確認した。
The accidents in the nuclear power plants of Three Mile Island and Fukushima Daiichi have clearly shown that the monitoring of the coolant level and the core state would have been highly advantageous. In the Three Mile Island accident the decreasing coolant level could have been detected early, which would have preven…
A dynamic behavior analysis on CFRP-made jet-engine fan blade has been performed by using K-computer. The simulation aimed to model a bird strike event by using an SPH-FEM weak-coupling analysis, where a single finite element is assigned to each unidirectional CFRP prepreg layer in the thickness direction of the fan b…
Sol-gel coatings are emerging today as green replacement to chromium coatings in the aerospace sector. Sol-gel coating was fabricated using three silanes - Tetraorthosilicate , Vinyl triethoxy silane and 3-(trimethoxysilyl) propyl methacrylate by dip and spray method. The coating was optimised by altering the water/si…
To increase the recording density of magnetic disk drives, the reduction of spacing between the flying slider and the rotating disk is of great importance. When the spacing between the slider and the disk approximates the molecular mean-free path, intermittent contacts between slider and disk are more likely to occur.…
The contribution deals with the validation of the new protection system of the LVR-15 research reactor at the Nuclear Research Institute in Rez, Czech Republic; its thermal power goes up to 10MW. The new protection system is computer based and consists of a Start-up Power Measurement System, Operational Power Measurem…
The performance of the ultra-precision machine tool greatly depends on the performance of the spindle. In particular, the high stiffness of the bearings is desired to maintain required higher motion accuracy of the spindle. In order to achieve the high bearing stiffness, the spindle equipped with water hydrostatic thr…
A cavitation inception theory of a vapor bubble in flowing water is presented taking account of a set of fluid dynamics boundary conditions for nonequilibrium evaporation or condensation at the bubble wall. The boundary conditions are the ones for the vapor velocity and the vapor temperature at the wall, and are the s…
We have developed superconducting wire about bronze route Nb3Sn and internal tin processed Nb3Sn. SH Copper Products Ltd. manufactures bronze route Nb3Sn superconducting strands for ITER-TF coils under a contract with the Japan Atomic Energy Agency (JAEA). The Nb3Sn strands which are composed of Nb-1 wt%Ta filaments a…
In this study, we have achieved an enhancement in the corrosion fatigue life using the thermal oxidation treatment technique that can generate a passive film on the surface of the TiNi shape memory alloy wire. The procedure for the thermal oxidation treatment is explained as follows. First, the as-received material wi…
Legislative Bill 176 would authorize custom feed-ing contracts between packers and Nebraska pork producers. Some producer protection provisions for these contracts are currently established under federal law and in several states but not yet in Ne-braska. This newsletter discusses some of these issues. Would LB176 aut…
A three dimension (3D) Kinetic Monte Carlo coupled multi-body embedded-atom method (KMC-EAM) model has been developed to simulate the CZTS film growth and morphology evolution during electrodeposition. The influences of the deposition factors, including electrolyte concentration, temperature and electrode potential, o…
Recently, weight saving and friction reduction in engine parts becomes more important to reduce carbon dioxide (CO_2) emissions. The aluminum alloy can contribute for weight saving of the car because it is one-third lighter than cast iron. However, the appropriate additive for aluminum alloy under the lubricating cond…
We have tried to evaluate the effect of local flow field on flow accelerated corrosion (FAC), employing mass transfer rate as an evaluation parameter. In this study, corrosion rates in an elbow pipe were measured using the electric resistance method. The diameter of the pipe was 50 mm, and the temperature of water was…
Ceria is well known for its unique properties in fast oxygen mobility and formation of oxygen vacancies which makes ceria an excellent catalyst support for metal nanoparticles. Promotional effect of ceria has been well established in a number of reactions including three-way catalyst and CO oxidation. These unique pro…
We have experimentally investigated photoluminescence from thin film of organic semiconductor deposited on hyperbolic metamaterials (HMMs). The HMMs composed of alternating multilayer of subwavelength-thick silver and titanium dioxide with various fill fractions were fabricated utilizing magnetron sputtering. Their op…