Materials Literature
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0.11～5.6 mM［Cl－］の溶液中，570 mV vs. SHE定電位保持した13Crステンレス鋼製部品ヘルドの成長性すきま腐食の発生と再不動態化に対する水道水成分である硝酸イオン，硫酸イオンおよび炭酸水素イオン（NO3－，SO42－，HCO3－）の作用を調査した．すきま腐食の発生は，［NO3－］/［Cl－］のモル比≧1または［SO42－］/［Cl－］のモル比＞1にて抑制された．成長性すきま腐食は，［NO3－］/［Cl－］のモル比≧1または［SO42－］/［Cl－］のモル比≧6において再不動態化した．再不動態化に要する時間は，NO3－およびSO42－の添加濃度増加に伴って減少した．HCO3－は，すきま腐食に対する発生抑制およ…
The performances of zinc oxide based thin film transistor(ZnO-TFT)are effected by many factors,such as the qualities of semiconductor active layer and dielectric,and the interface characteristics between active layer and dielectric.Among these factors,the quality of semiconductor active layer is the key factor.However…
In this work, the film thermal conductivity and the film-substrate interfacial thermal contact resistance of vertically-aligned single-walled carbon nanotube (VA-SWNT) films were measured with a proposed method utilizing temperature dependence of Raman spectrum. The proposed method harnesses the excitation laser power…
First principles calculation were performed using Tight-binding LMTO method with Local density approximation (LDA) and Atomic sphere approximation (ASA) to understand the electronic properties of CrH. A pressure induced structural phase transition from cubic to hexagonal structure of CrH is predicted. The stability of…
EST-SSR was used to detect the hereditary difference in wild and cultured populations of the Betaphycus gelatinae,the result showed that nine individuals from each population were used of the 5 EST-SSR primers amplified,a total of 195 reproducible loci ranging from 250 to 2 500 bp were amplified from all the 18 indivi…
We try to use an efficient and accuracy method to describe optical scattering from an isolated crystalline zinc oxide (ZnO) microsphere on a gold substrate. The calculated three-dimensional (3D) microscopic ellipsometry imaging pictures with nanoscale resolution are present. We calculate the Ψ and △ spectra for specul…
In this article, recent advances in computational materials science accelerated by K computer and high-performance computing infrastructures are reviewed. Exponentially growing computer power enables us to develop and apply new methodologies of computer ssimulation, which will realize qualitatively different approach…
采用有限元法研究了基体材质、厚度、涂层结构等因素对Sm2Zr2O7／YSZ—NiCoCrAlY功能梯度涂层热冲击应力的影响。结果表明，涂层表面区域存在较大的冲击热应力，径向热应力远大于轴向应力和剪切应力，而且在所考察的四种金属基体材料中，2Cr13钢对应涂层的热应力最小。随着基体厚度的增加，涂层径向热应力逐渐增大，当厚度超过25mm后，影响可以忽略。随着涂层层数的增加，涂层表面的径向热应力逐渐减小。
This article describes recent progress in organic semiconductor research with ultraviolet photoelectron spectroscopy (UPS). Origins of the energy level alignment at organic-conductor interfaces and the charge mobility in organic semiconductor systems are the most important subjects, which have been left to be elusive.…
本文研究一类胺基和聚醚改性的聚硅氧烷表面活性剂的合成工艺，以及它们作为消泡剂时的消泡/抑泡性能。我们的合成路径分为两步：首先以端含氢硅油和烯丙基缩水甘油醚为原料在铂催化剂的作用下，利用硅氢加成反应合成了端环氧基改性硅油；然后，将上述环氧改性硅油和聚醚胺(M-600)进行亲核开环加成反应，制备最终的氨基聚醚改性的有机硅产品。消泡/抑泡性能测试结果表明：新方法制备的氨基聚醚有机硅产品具有良好的水分散性和一定的消泡抑泡性能。经过一定的复配之后，氨基聚醚有机硅消泡迅速，抑泡时间长，其性能已经达到甚至超过一些已经市场化的消泡剂产品。 We report herein the synthesis and defoaming ability o…
Background: Even after successful treatment of aortic coarctation, a high risk of cardiovascular morbidity and mortality remains. Uncertainty exists on the factors contributing to this increased risk among others the presence of (1) a residual narrowing, leading to an additional resistance in the arterial system and (…
Most boiler component structures are mainly fabricated by welding which are likely to be regions of crack initiation and propagation. In such weldment, it is known that the multi-axial stress fields appear due to the plastic constraint induced by the differences in material micro-structure between the weld metal, heat…
The simple explanation is that in nature and in manufacturing, things leak. Vacuum impregnation stops leak. The ultimate goal of vacuum impregnation is to seal leak/migration paths without impacting the functional, assembly or appearance characteristics of a part. The impregnation chamber which is used in VPI process…
The nano-ZnO was grown by electrochemical deposition method. In order to introduce N,the NH3plasma post treatment was used. X-ray diffraction spectroscopy analyses indicate that N doping can not disturb the structure of ZnO. No additional peaks are observed in the sample.X-ray photoelectron spectroscopy analyses also…
合成了一种新型功能化碱性离子液体1-丁基-3-甲基咪唑咪唑盐（[Bmim]Im），进行了^1HNMR和红外表征。采用量子化学密度泛函方法，分析了离子液体[Bmim]Im及组成部分[Bmim]^＋、Im^-的稳定结构及电荷分布，从电荷分布的角度探讨了其结构与催化合成生物柴油活性之间的构效关系，与传统催化剂NaOH、KOH对比，由于较好的分散度和相容性，催化活性更好。
Tailoring feature of single walled carbon nanotubes (SWNTs) in property by structure deformation has been an interdisciplinary subject of interest for researchers with an expectation that the control of the electronic property will open an access to new world where nano-circuit and nano-actuator exist and it is quit e…
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Atomic force microscope (AFM) has advantages in the measurement of mechanical properties of soft materials. Here, we introduced applications of AFM to elucidate a single cell mechanics and multi-cellular dynamics. Comparison of elasticity map of fibroblasts with distribution of intracellular cytoskeletal fibers showed…
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Приведены результаты исследований влияния процесса термоциклирования на зависимости Е-эффекта от внешнего магнитного поля в аморфных металлических лентах состава Fe64Co21B15, прошедших термомагнитную обработку в интервале температур 250350°C. Определено влияние температуры последующего нагрева ленты в интервале темпе…