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。
Kroz povijest, a posebno u moderno vrijeme sidrenje je postalo nezamjenjivo u rudarstvu, građevinarstvu, geotehnici i u gotovo svim podrucjima gdje je potrebna stabilizacija stijena i tala nakon njihova iskopa. Geotehnicka sidra izrađena od nisko i srednje ugljicnog celika, te visoko napetosnih nisko legiranih celika…
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space grou…
Une sous-catégorie importante des nanomatériaux est l’utilisation de nanoparticules (NPs) métalliques dans le design de biosondes optiques en spectroscopie Raman ou de fluorescence, application permise par le plasmon généré lors de l’interaction lumière-NPs. La plage spectrale utile permise peut être modulée selon la…
Ga2O3‐SiO2 nanoparticles were prepared by a sol‐gel method and Pt was then immobilized on their surface via photo‐assisted deposition (PAD). The produced samples were characterized using X‐ray diffraction (XRD), ultraviolet and visible spectroscopy, photoluminescence emission spectroscopy, and surface area measurement…
The main goal of this work is to study the challenges associated to the upscaling of an active protective coating with (LDH) layered double hydroxides from a laboratorial to industrial scale. Two types of coatings having LDH with gluconate intercalated into its galleries with and without alginate as surface modificati…
Cellulose nanocrytals and chitin nanocrystals respectively were isolated from bioresidues viz, sludge from special cellulose production and crab shell waste using acid hydrolysis. The atomic force micrscopy images showed that the diameter of CNWs ranged from 10 - 20 nm and chitin whiskers ranged from 20 - 40 nm. Therm…
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space grou…
Oxidative stress (OS) is common to numerous diseases, including cancer. Among other, OS is mediated by the activity of superoxide dismutases (SOD), natural proteins that catalyze dismutation of the superoxide anion. SOD-activity can efficiently be mimicked by various compounds including Mn porphyrins. A thorough study…
This thesis investigates the electro reduction of oxygen on platinum nanoparticles, which serve as catalyst in low temperature fuel cells. Kinetic studies on model catalysts as well as commercially used systems are presented in order to investigate the particle size effect, the particle proximity effect and anion adso…
这研究在 BaWO4 的光性质上调查了 Tm3+ 的不同内容和 Yb/Tm 的不同集中比率的效果:Yb3+/Tm3+nano 水晶由热水的方法综合了。结果显示了到达的那光紧张最强壮什么时候 CTm=1.0 mol.% 和 CYb/CTm=2:1。X 光检查衍射揭示了 BaWO4 的四角形的系统:Yb3+/Tm3+ 和谷物尺寸根据 Scherrer 在 31 和 45 nm 之间方程。X 光检查衍射和扫描电子显微镜学的结果是类似的。在包括二座蓝排放山峰的 454， 475， 647 和 790 nm 的四座排放山峰和二座红排放山峰，相应于 1D23F4， 1G43H6， 1G43F4 和 Tm3+ 的 3H43H6 转变，在 980…
Par noteikumu pārkāpumiem, kas saistīti ar ieroču, munīcijas, sprāgstvielu, radioaktīvu un citu bīstamu vielu glabāšanu, izlietošanu, uzskaiti un pārvadāšanu, militārpersonām saskaņā ar Krimināllikuma 346.pantu ir paredzēta kriminālatbildība, taču ar pēdējiem likuma grozījumiem tika mainīts šī noziedzīgā nodarījuma sa…
Artificial sports surfaces are becoming more prevalent worldwide as a sporting ground. In order for it to be a suitable and competitive substitution for natural sports turfs, concerns of fouling must be addressed. . In this project, two types of polymer graft chains, hydrophilic polymer, 2-hydroxyethyl methacrylate an…
Polypropylene (PP) nanocomposites were prepared by melt intercalation in an intermeshing co-rotating twin-screw extruder. The effect of molecular weight of PP-MA (maleic anhydride modified polypropylene) on clay dispersion and mechanical properties of nanocomposites were investigated. After injection molding, the tens…
La fundición gris es el material más utilizado dentro de las fundiciones, abarcando prácticamente la mitad de la producción mundial. Es por esto que el proceso de solidificación de la fundición gris ha sido objeto de varios estudios de modelación, sin embargo casi todos los modelos disponibles tratan sólo con la compo…
Depth, sediment = Curated depth (mbsf).\nK (Sr/Ca) (R), K (Mg/Ca) (R), Sr/Ca (R), Mg/Ca (R): calculated after Rimstidt et al. (1998), T-dependent.\nK (Sr/Ca) (G): calculated after Geatani and Cohen (2006), for aragonites.\nK (Sr/Ca) (M&B), Sr/Ca (M&B): calculated after Malone and Baker (1999), T-dependent.\nSr/Ca (avg…
La technique de polymérisation confinée sur surface est une méthode très flexible pour introduire des fonctionnalités organiques dans des matériaux mésoporeux organisés de type SBA-15. L'imprégnation à humidité naissante ("incipient wetness") de monomères vinyliques suivie d'une polymérisation sous pression réduite pe…
info:eu-repo/semantics/published
Ce travail de thèse porte sur l’instabilité de Faraday qui résulte de l’oscillation verticale d’une couche de liquide. L’objectif est d’apporter une vérification expérimentale précise des résultats issus d’une analyse de stabilité linéaire. À basse fréquence, la longueur d'onde caractéristique de cette instabilité est…
Nos últimos anos tem-se observado um aumento da procura de diesel, comparativamente com a gasolina. A produção de gasolina aumentou à custa do aparecimento das unidades de FCC. Deparando com este facto, a produção de diesel tem de acompanhar a sua crescente procura, e essa reposta encontra-se precisamente nestas unida…
Single-walled carbon nanotubes (SWNTs) possess extraordinary mechanical strength, thermal and electrical conductivity. These properties make them very attractive in many applications in the fields of nanotechnology, electronics, and optics. However, most of the SWNT syntheses methods result in different types of chira…