Materials Literature
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A variational approach is used to study the superconductor-insulator transition in two-band granular superconducting films using a resistance-shunted Josephson junction array model in this letter. We show that a zero-temperature metallic phase may exist between the superconducting and insulator phases which is absent…
A eletrônica molecular vem sendo investigada intensivamente por mais de vinte anos.Nesse sentido, as pesquisas científicas estão sendo focadas na busca de estruturas que possam ser utilizadas na construção de dispositivos em escalas nanométricas, que possam substituir a tecnologia tradicional do silício.O objetivo pri…
The main object of this paper is to derive several interesting argument properties of a linear operator H_{p,q,s}^{m,μ}(α₁) associated with the generalized hypergeometric functions.
摘要：采用开尔文探针研究了相对湿度（RH）为75％和33％时，Al—0．63Mg-0．28Si合金在原始浓度0．05—0．3mol／L、体积6#L的MgCl2液滴作用下的腐蚀行为。由于液滴水分蒸发，在合金表面形成直径约2．9—3．2mm的MgCl2薄液膜。当开路电位基线在基本维持稳定（-0．3-0．5V。。SCE）的基础上重复出现电位突降而后立即回复的电位噪声时，对应于亚稳孔蚀的不断形成与钝化，合金表面生成直径小于3肛m的亚稳孔蚀。当开路电位缓慢下降至-0．7-0．8V左右并维持稳定时，对应于合金表面丝状腐蚀的形成与生长。在RH=33％气氛中，合金表面只发生亚稳孔蚀。在RH：75％气氛中，当初始浓度0．3mol／L和0．2mol／…
Quasiparticle interference induced by cobalt adatoms on the surface of the topological insulator Bi$_{2}$Se$_{3}$ is studied by scanning tunneling microscopy, angle-resolved photoemission spectroscopy and X-ray magnetic circular dichroism. It is found that Co atoms are selectively adsorbed on top of Se sites and act a…
En el presente trabajo de investigacion se pretende delimitar el analisis a procesos de soldadura con el objetivo principal de conocer el campo de esfuerzos residuales causados por las altas temperaturas. Por lo cual se procurara el recopilar en esta tesis la informacion mas relevante en el proceso de soldadura asi co…
This chapter contains sections titled: Radiation Chemistry of Branching Effects on Rheology Processability Implications Application Examples References
Biomaterials play an important role in tissue engineering, where they are used as scaffolds for the 3D culture of cells, to help the generation of neo tissues in-vitro and achieve superior tissue engraftment and regeneration in-vivo. The work presented in this thesis describes how thermoresponsive particle gels, a cla…
The critical separation of clusters, corresponding to the maximum density of clusters, affects growth characteristics during physical vapor deposition (PVD). In particular, this separation can affect surface smoothness in growing single-crystalline films, grain size distribution in growing polycrystalline films, and d…
This chapter contains sections titled: Radiation Chemistry of Curing Advanced Composites Wood and Natural Fiber Composites Adhesives Other Applications and Commercialization Challenges References
Computer simulations of biological systems provide novel data while both supporting and challenging traditional experimental methods. However, continued innovation is required to ensure that these technologies are able to work with increasingly complex systems.\n\nCoarse–grained approximations of protein structure hav…
This chapter contains sections titled: Radiation Chemistry of Aqueous Polymer Systems Crosslinking of Polymer Dissolved in Water Degradation of Polysaccharide Dissolved in Water Crosslinking of Polymers Dispersed in Water References
Banyak perangkat kritik dibangun untuk memenuhi kebutuhan studi fenomena kecelakaan kritikalitas pada larutan fisil di fasilitas daur bahan bakar nuklir. Salah satu diantaranya adalah perangkat kritik SCAMP. Di perangkat ini dikerjakan eksperimen kritikalitas menggunakan bejana silindris stainless steel berisi larutan…
La mise en œuvre des réacteurs nucléaires du futur nécessite des températures de fonctionnement élevées sous flux de neutrons. Parmi les candidats envisagés pour les matériaux de structure et de gainage du combustible, les composites à matrice céramique de type SiCf/SiCm présentent un potentiel élevé. Dans ce cadre, l…
Ce travail de cette thèse porte sur la dynamique des protéines, accompagnées de leur eau d'hydratation, une couche de solvant autour des protéines vitale pour leur fonction biologique. Chacune de ces deux composantes s'accompagne d'une dynamique qui lui est propre et dont la réunion reforme le paysage énergétique du s…
Ce travail porte sur la croissance par MOVPE et l’étude de structures à base de nanofilsde ZnO, semi-conducteur à large bande interdite directe (3,37 eV) qui possède un fort po-tentiel pour les applications optoélectroniques. Des observations systématiques par MEBet TEM de nanofils de ZnO crûs sur saphir, sous différent…
Group III nitride semiconductor materials (III-N), and especially gallium nitride (GaN), are now key materials for the whole human kind. Since years 1990, reliable and energy-efficient light emitting devices have been developed based on III-N compounds providing higher efficiency replacement solutions to incandescent…
At the DLR Institute of Technical Thermodynamics new concepts for fuel cell stacks are being developed for various applications and load profiles. Thereby, the main focus lies on the simplification of the stacks for reaching a cost reduction as well as an increase of the (volumetric) power density. \nToday’s polymer e…
利用粉末冶金技术制备新型Te-Ni-Cr合金材料，在人造海水中进行全浸腐蚀试验，通过金相组织观察、扫描电镜对表面腐蚀形貌的观察、表面EDS及XRD对腐蚀产物的分析，研究了Te-Ni-Cr合金的耐蚀性能。结果表明，碲元素的加入改变了试样的显微结构，形成黑灰色突起的骨骼状组织，对整个合金的表面起支撑保护作用；经XRD分析确定腐蚀产物为Ni2O3和铁的氧化物。计算腐蚀速率得到，Te—Ni-Cr合金的耐蚀性较未加碲的有所提高。
В статье рассмотрены вопросы совершенствования системы управления туризмом на уровне региона, выявлены объекты туристского интереса и определены наиболее эффективные формы развития туризма с учетом спроса и предложения на рынке туристских услуг Самарского региона.