Materials Literature
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e-mail: tecmot.f.jaussi @ romandie.com A new approach is needed to test particle filters for retrofitting Diesel engines. Considering the toxicity of the particles as also the physical and chemical attributes of particle filters, the optimal scheme is to test the components themselves independent of the deployment. Th…
The dissertation begins with Chapter 1, which is a general introduction of the fundamental synthesis of mesoporous silica materials, the selective functionlization of mesoporous silica materials, and the synthesis of nanostructured porous materials via nanocasting. In Chapter 2, the thermo-responsive polymer coated me…
Polyphosphates are often used in the meat industry to increase the water holding capacity and tenderness of meat products, and tripolyphosphate (TPP) is a commonly used polyphosphate. However, the mechanism of how polyphosphates improve these qualities is poorly understood. It has been shown that TPP is metabolized in…
L’existence de procedes de fabrication simples et bas cout rend maintenant possible l’emergence d’une electronique a base de materiaux organiques. Dans ce domaine, des techniques de depot a basse temperature, empruntees a l’imprimerie, sont utilisees. La serigraphie appartient a cette categorie de procedes. Nous prese…
Cu-30Ni-xRE(x=0-0.213 wt.%) alloy was prepared by adding rare earths(RE) in melted Cu-30Ni alloy using metal mould casting method.The effects of RE on corrosion resistance of the alloy in simulated seawater were investigated using optical microscope,scanning electronic microscope with energy-dispersive spectrometer an…
Nowadays the application of thin SiNx layers as bulk passivating and antireflection coatings for Si-based solar cells applications is considered to be a successful solution for the increase in efficiency1. A new concept to further increase the efficiency of the solar cell is based on the light conversion mechanism: ac…
用热分析（TG／DTG）技术研究了固态水杨酸钙（Ca（H4C6OHCOO）2·2H2O）在空气中的热分解过程．热分析结果表明，Ca（H4C6OHCOO）2·2H2O在空气中分4步分解．用Friedman法、Flynn-Wall—Ozawa（FWO）法和ASTME698法求取了Ca（H4C60HCOO）2·2H2O（s）失水过程的活化能E，并通过多元线性回归法给出了可能的机理函数．
This work basing on the results of operational analysis of transmission and slat screw jacks of Tu-204 family aircraft offers some engineering solutions facilitating the elimination of the design shortcomings found in operation and allowing to reduce weight of the slats control system.
The effects of oxygen on Fe-catalyzed carbon nanotube (CNT) growth on Ta substrates was studied. CNTs were grown on Fe thin-film catalysts deposited on silicon substrates via exposure to C2H4 in a thermal chemical vapor deposition (CVD) furnace. Heating for CVD growth causes the Fe film to dewet to form catalyst parti…
"El objetivo de este trabajo consistió en evaluar la influencia de algunas variables de operación del proceso de oxidación foto-catalítica en la eficacia de remoción de cianuro presente en muestras de agua simuladas, empleando luz ultravioleta UV y dióxido de titanio TiO2 como catalizador. Se diseñó un reactor foto-ca…
在聚氯乙烯（PVC）挤出成型工艺的基础上，结合聚氨酯（PU）的反应特点，选用经钛酸酯表面处理过的纳米二氧化硅（nano—SiO2）作为纳米材料，对PU／nano—SiO2／PVC复合材料进行了探索，利用超声辐照技术并经搅拌将nano—SiO2分散于液化4，4-二苯基甲烷二异氰酸酯（L—MDI）中，良好地解决了物料的分散问题；研究了反应挤出工艺条件对复合材料性能的影响。结果表明：挤出速度40～50r／min、均化段温度180～190℃最为合适；PU／nano—SiO2的质量比为5：1时，对PVC的增韧效果最佳，PU和nano—SiO2能协同增韧PVC，且nano-SiO2具有补强作用，当PU／nano—SiO2／PVC质量比为5：1…
In der vorliegenden Arbeit wurde in einer PACIS Clusterquelle Aluminium unter Zugabe von gasförmigem Wasserstoff verdampft und somit Aluminiumhydridcluster hergestellt. Diese Cluster wurden massensepariert und mittels Anionenphotoelektronenspektroskopie untersucht, um ein Abbild ihrer elektronischen Struktur zu erhalt…
基于带输运模型建立双掺杂Fe:Mn:LiNbO 3 晶体双色全息存储的耦合微分方程组,在此基础上用数值求解的方法讨论用锰多铁少型双掺杂铌酸锂晶体进行双色全息存储的时间动态过程,分析此种晶体氧化还原态对晶体内建空间电荷场的影响。只有氧化的Fe:Mn:LiNbO 3 晶体能通过双色存储实现全息图的非破坏性读出,氧化的Fe:Mn:LiNbO 3 晶体红光擦除后所保留的衍射效率随氧化而提高。在实验方面用同种杂质浓度的四种不同氧化还原态的晶体,进行了还原晶体之间、氧化晶体之间二波耦合对比实验,实验结果和理论分析的结果一致,同时利用实验曲线定量地计算了氧化晶体的全息动态范围参量M/#和各个晶体的记录灵敏度,得到了较大的M/#的值为5.03(非…
This chapter investigates how surface tension changes in response to the surface perturbation of a 1‐octanol solution. The experiments were performed in a closed chamber containing 1‐octanol aqueous solutions where both liquid and vapor phases co‐existed. In general, the surface tension was found to decrease upon surf…
Note: Book of Abstracts – ISBN: 978-86-7306-102-3, p. 223 Reference CIME-POSTER-2010-010 Record created on 2010-02-17, modified on 2017-05-12
Purification of metallurgical Si by three layer electrochemical refining was demonstrated in a large laboratory scale reactor with current efficiencies above 90%. Purified Si was produced on the order of kilograms. As expected from the principle, elements more electronegative (less noble) than Si tended to accumulate…
A surface mode is an electromagnetic field distribution bounded at a surface. It decays exponentially with the distance from the surface on both sides of the surface and propagates at the surface. The surface mode exists at a metal-dielectric interface as surface plasmon (1) or at a photonic crystal surface terminated…
介绍 poly (醚 urethane )(PEUR ) 进聚合物电解质基于 poly (乙烯氧化物) ， LiI 和 I2，显著地由将近二个数量级增加了离子的传导性。增长我 ? 3 散开系数也被观察。所有固态的敏化染料的太阳能电池用聚合物电解质被构造。PEUR 加入由转移 TiO2 的乐队边到否定价值在开的电路电压 Voc 的改进上有有益的效果，这被发现。扫描电子显微镜图象显示在 TiO2 电极和混合电解质之间的完美的界面的接触。
采用熔融挤出法制备了尼龙612／环氧树脂（EP）／苯乙烯-乙烯-丁二烯-苯乙烯嵌段共聚弹性体与马来酸酐接枝共聚物（SEBS-g—MAH）／聚碳酸酯（PC）共混合金，并研究了合金的力学性能及微观形态。结果表明：尼龙612／EP／SEBS—g—MAH／PC合金各组分质量比为75／2／9／25时，合金的冲击强度比纯尼龙612提高了278．7％，断裂伸长率提高116％。微观结构形态研究表明：合金分散相的尺寸减小、分布更加均匀。
Cerium dioxide(CeO2) has attracted much attention and has wide applications such as automotive exhaust catalysts,polishing materials for optical glasses and additives for advanced glasses,as well as cosmetic materials.The particle size and its distribution are key factors to the performance of the materials in the fun…