Materials Literature
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Diamond-like carbon (DLC) films are amorphous carbon films that can be produced with or without hydrogen, depending on the deposition techniques and conditions. Besides the conventional vapor deposition, DLC films can be deposited by liquid electrochemical technique that utilizes the electrolysis of organic solution.…
Wigner函数在对量子体系状态的描述方面具有重要的意义。 讨论了自旋1/2非对易朗道问题的Wigner函数。首先回顾了对易空间中Wigner函数所服从的星本征方程， 然后给出了非对易相空间中自旋1/2朗道问题的Hamiltonian， 最后利用星本征方程（Moyal 方程）计算了非对易相空间中自旋1/2朗道问题具有矩阵表示形式的Wigner函数及其能级。 With great significance in describing the state of quantum system, the Wigner function of the spin half noncommutative Landau problem is s…
通过快速卸压法,以超临界CO2为物理发泡剂,研究了相容的聚甲基丙烯酸甲酯（PMMA）/1-n-十二烷基-3-甲基咪唑六氟磷酸盐（[C12MIM][PF6]）离子液体（IL）复合体系的发泡性能.加入IL后,PMMA对CO2的吸收量增加;复合体系的玻璃化转变温度（Tg）随IL含量的增加而降低.IL对PMMA发泡行为的影响取决于发泡条件.在较低温度和压力下,纯PMMA无法发泡,IL的加入可促进泡孔形成;提高温度和压力,纯PMMA可以发泡,IL的加入在提高泡孔尺寸的同时使泡孔仍然保持尺寸分布均匀的微米级结构.
Co-encadrement de la thèse : Loïc Nazé
L'objet de cette étude est d'utiliser la technique des micelles inverses pour synthétiser des nanoparticules à transition de spin, de taille et de forme contrôlées afin d'en permettre l'utilisation en électronique moléculaire. Dans la première partie, nous avons déterminé les paramètres de synthèse influençant la tail…
Metallische Schaumwerkstoffe zeichnen sich durch ein hervorragendes Verhältnis aus Steifigkeit und Masse aus, was sie für eine Vielzahl technischer Anwendungen im Bereich des Leichtbaus äußerst interessant macht. Ihr Verformungsverhalten hängt nicht allein vom Grundwerkstoff der Zellstege ab, sondern vielmehr bestimmt…
Woven glass composites have been used for many years in commercial applications due to their light weight, competitive price and good engineering properties. Absorption of energy by laminated composite material results in damage in various forms, the most common of which is delamination. Inter-laminar fracture causes…
Influence of the heating temperature on the properties of nickel doped TiO 2 films prepared by sol-gel method", Applied Surface Science 256 (2010) 4538-4542.III.R. Pärna, U. Joost, E. Nõmmiste, T. Käämbre, A
The authors wish to make the following correction:The magnetic field inducing polarization flopping was applied along c-axis not along b-axis as was written in the manuscript. This change (H//b sub...
Em experimentos de espalhamento Raman ressonante utilizandodiversas linhas de laser, o perfil de intensidades dos espectros em funcao da energia de excitacao esta relacionado com a estrutura eletronica e vibracional dos materiais. Neste trabalho nos medimos e interpretamos os perfis Raman ressonante para amostras de n…
The production of fuel and chemicals is expected to be based on renewable energies in the next few years. However, combustion causes CO2 emission. Its reduction is one of the main focuses to regulate greenhouse effect, as expected by the Kyoto protocol. One combustion technology which could reduce CO2 emissions is che…
Residue curve maps are theoretically generated to assess the feasibility of a reactive distillation concept for the production of n-propyl propionate (ProPro). This product is a widely used solvent in industry and is synthesized by the heterogeneous catalyzed esterification reaction of 1-propanol (ProOH) and propionic…
The AB s-valent dimer is used to analyse bond formation and charge transfer within the tight-binding (TB) approximation. In this way a physical interpretation of the electronic structure and binding energy within density functional theory (DFT) is obtained which lends itself to the derivation of covalent and ionic int…
Shipping packages 9975-02274 and 9975-04769 were examined in K-Area following the identification of a non-conforming condition; the axial gap between the drum flange and upper fiberboard assembly exceeded the maximum allowed value of 1 inch. The fiberboard in package 9975-02274 had slightly elevated moisture content,…
The spontaneous formation of highly ordered amphiphilic monolayers on solid surfaces by adsorption from organic solutions at the liquid–solid interface was first reported in the seminal work of W. A. Zisman and co-workers in the mid-20th century [1]. In that work, attention was focused on the remarkable wetting proper…
In order to turn a brittle cement matrix into a ductile composite different types of man-made fibres such as steel, glass and polyvinyl alcohol are currently used as reinforcement, as well as some natural fibres. Compared to synthetic fibres, natural fibres are more easily available worldwide and they are friendlier t…
The Waste Acceptance Product Specifications (WAPS) 1.2 require that the waste producer 'shall report the curie inventory of radionuclides that have half-lives longer than 10 years and that are, or will be, present in concentrations greater than 0.05 percent of the total inventory for each waste type indexed to the yea…
Phase relations and microstructure of LaFe 13- x Si x alloys ( x = 0.5 to 3.0) were investigated. In induction-melted alloys, α-( Fe , Si ) and LaFe 2 Si 2 crystallized primarily in sequence of increasing x . In arc-melted alloys, α-( Fe , Si ) and the tetragonal La ( Fe , Si )13 compound crystallized primarily instea…
In present paper, we report the preparation of CdTe films on thoroughly cleaned glass substrates by using the novel spray pyrolysis technique with CdCl 2. H 2 O and TeO 2 as precursor materials. The films were deposited on glass substrates by using the parameters: (a) spray nozzle - substrate distance = 30 cm, (b) spa…
以混合钴源为前驱体,采用等体积浸渍法制备了Co-Pd/TiO2催化剂,考察了其对CH4和CO2梯阶转化直接合成乙酸的催化性能,采用XRD,XPS,NH3-TPD和BET对催化剂进行了表征.结果表明,催化剂具有适宜的表面酸性、高比表面积和孔结构,有利于提高催化剂的活性.在m（CoCl2）∶m[Co（NO3）2]=2∶5,m（Co）∶m（Pd）=2∶1,常压,150℃条件下,乙酸的生成速率达到6.13 mg·g-1Cat·h-1,选择性达到81.6%,分别比以单一Co源制备的催化剂提高了134%和16%.