Materials Literature
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A heteronuclear (NH4)2Sr[FeII(CN)6] complex having a tetragonal phase was synthesized from Sr(NO3)2 and (NH4)4[FeII(CN)6]·nH2O. A single phase of the heteronuclear (NH4)2XLa1−XSrX[Fe(CN)6]·nH2O complex was synthesized by the coprecipitation for two heteronuclear hexacyano complexes of La[FeIII(CN)6]·5H2O and (NH4)2Sr[…
A metallic particle defect seriously degrades an insulation performance of gas insulated switchgear (GIS). Therefore, the estimation of risk of the metallic particle is important to maintain the reliability of GIS. In this paper, based on a partial discharge (PD) mechanism, we suggest a novel method to estimate the me…
National audience
L'AMAC a attribue le Prix Daniel Valentin 2010 a l'auteur pour son travail de recherche dans le domaine du vieillissement et de la durabilite de materiaux composites a matrice organique (CMO) soumis a des environnements agressifs et concernant, en particulier : - le couplage hygro - thermo - mecanique lie a des variat…
from teaching and research institutions in France or abroad, or from public or private research centers.L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou…
Two-dimensional magnetostriction of electrical steel sheet (Non-oriented and Grain-oriented) under high magnetic flux conditions was measured by a new method for evaluating magnetostriction phenomena in arbitrary direction. We made clear the various parameters of two-dimensional magnetostriction depending on the maxim…
International audience
Two series of silicate glasses that contain gallium as the primary critical component have been identified and optimized for viscous sealing of solid oxide fuel cells operating from 650 to 850°C. Both series of glass sealants crystallize partially upon heat treatment and yield multiphase microstructures that allow vis…
Jaringan perpipaan banyak digunakan dalam kegiatan eksplorasi minyak dan gas bumi. Dalam pemasangannya tidak terlepas dari proses pengelasan. Dimana proses pengelasan merupakan salah satu proses yang dapat mempengaruhi umur material pipa. Masalah yang timbul adalah besarnya laju korosi yang timbul. Berdasarkan kenyata…
FIGURES 1–2. Unionicola figuralis (Koch, 1836), larva: 1, dorsal view; 2, ventral view. Scale bar: 50 μm.
Günümüzde tekstil terbiyesinde önem kazanmaya başlamış olan kavramlardan biri nano-teknolojidir. Tekstil terbiyesinde nano-teknolojik ürünler kullanılarak konvansiyonel yöntemlere kıyasla birçok avantajlar sağlanabilmektedir. Bu anlamda henüz tekstil terbiyesinde kullanımı oldukça yeni olan bir nano-teknolojik ürün de…
Product Sound Design is an elective course of the Master of Industrial Design Engineering at the Delft University of Technology. The educational goal of the course is to make students consciously aware of constructive parts in the design of appliances. The paper details the experience and the design of product sounds.…
A series of blends of Acrylonitrile-Butadiene-Styrene (ABS) and Polycarbonate (PC) and another series of polyvinylidene fluoride, PVDF, and low density polyethylene, LDPE, were prepared and characterized for some of their rheological properties.The blends of a series were prepared by mixing the components, with differ…
The inhibition effect of cerium sulphate tetrahydrate and a mixture of this cerium salt and L-arginine amino acid on the corrosion of steel in the ammonia/ water baseline solution of composition 5%wt ammonia and 0.2 wt % sodium hydroxide mixtures at 25 ±1 °C was investigated by using electrochemical impedance spectros…
The thermal bonding PET fabrics were produced through high temperature steaming (HTS) of low melting PET yarn as warp and composite fancy yarn containing low melting PET yarn as weft. The low melting PET yarn of sheath-core structure consisted of a regular PET in core portion and low melting PET in sheath portion. The…
It is vital to elucidate the role of asymmetric intermolecular interactions resulting from the stereospecific structures of molecules in order to understand the mechanisms of chemical and biochemical reactions such as enzyme-substrate reactions, antigen-antibody reactions, etc. In order to reveal the mechanism of the…
Nano-fluid is a new engineering material consisting of nano-meter sized particles dispersed in a base fluid. Single-walled carbon nanotubes (SWNT) are structurally unique material that exhibit excellent mechanical, electrical, thermal and optical properties. SWNT offer potential promise for a number of novel applicati…
본 연구는 생체흡수성 임플란트의 주 재료로 사용되는 마그네슘(Mg)의 부식저항성과 생체적합성을 향상시키기 위하여 플라즈마 중합공정을 이용하여 마그네슘 표면에 헥사메틸디실록산 (hexamethyldisiloxane; HMDSO)과 아릴아민 (allylamine; AAm) 고분자박막을 코팅한 후 생체적합성을 평가하는 것이다. 이를 위하여 HMDSO 박막은 플라즈마 세기 75W, 아민 박막은 50 W 그리고 반응압력 150 mtorr 조건에서 15분 동안 방전하여 제조하였다. 부식저항은 시료를 생체유사용액에 4일간 침지하여 전계방출 주사현미경으로 관찰하였다. HMDSO…
Low molecular weight ligands have been extremely useful for mimicking active intermediates. While often times these low molecular weight compounds are synthesized with ligands that do not always fully mirror the active site, they do hold an advantage over studying intermediates of full proteins due to the complexity o…
본 연구에서는 수치적 시뮬레이션을 통해 탄소/에폭시 복합재 적층판의 고속충돌 관통 거동을 연구하였다. 해석은 상용유한요소 해석프로그램인 LS-DYNA를 사용하여 해석을 수행하였고, 적층판 및 구형 강철 충격체 모두 3차원 요소로 모델링 하였다. 해석에는 적층순서가 $[45/0/-45/90]_{ns}$ 인 16 및 24장으로 된 복합재 적층판을 고려하였으며 충격체의 초기속도는 140-250 m/s 범위의 값을 사용하였다. 해석결과 예측된 잔류속도는 실험값과 비교적 잘 일치하였다. In this paper, the penetration behavior of carbon…