Materials Literature
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Σκοπός της συγκεκριμένης διπλωματικής εργασίας είναι ο υπολογισμός της μέγιστης ικανότητας μεταφοράς ισχύος υπογείων καλωδίων Μέσης Τάσης καθώς και η μελέτη της επίδρασης των συνθηκών εγκατάστασης στην μέγιστη επιτρεπτή τιμή ρεύματος. Αρχικά, παρουσιάζονται τα βασικά τεχνικά χαρακτηριστικά των καλωδίων ισχύος καθώς κα…
HIV infection is pandemic in humans and is responsible for millions of deaths every year. The discovery of new cellular targets that can be used to prevent the infection process represents a new opportunity for developing more effective antiviral drugs. In this work, dendritic cell-specific ICAM-3 grabbing non-integri…
The spectral radiation of sonoluminescence (SL) from sulfuric acid doped with various Xe concentrations has been studied in a hydrochemical simulation, including radiation effects of both continuum and line emissions. The simulation considers the same temperature for both continuum and line parts of the SL spectrum an…
O controle de distribuicoes de cristais e de grande importância para a industria quimica de alta tecnologia, encontrando especial aplicacao na producao de farmacos e alimentos. Nestas industrias, outra caracteristica e igualmente importante: polimorfismo. Legislacoes especificas comumente requerem a presenca de um det…
Solvent acidity quanitifies the hydrogen bond donating ability of a solvent. One of the first measures of solvent acidity was ? parameter developed by Kamlet-Taft. Later Catalan and colleagues developed the SA parameter. This study proposes that the emission intensity of several PRODAN derivatives can also be used as…
Pada penelitian ini telah dibuat membran keramik La1-xSrxCo0.8Fe0.2O3-δ (0,0≤x≤0,4) berdiameter 55 mm dari serbuk oksida perovskit La1-xSrxCo0.8Fe0.2O3-δ (0,0≤x≤0,4) yang disiapkan dengan metode solid state. Difraktogram sinar-X menunjukkan bahwa serbuk yang digunakan berstruktur perovskit, dengan Co3O4 dalam jumlah y…
Tesis doctoral inédita leída en la Universidad Autónoma de Madrid, Facultad de Ciencias, Departamento de Física Teórica de la Materia Condensada. Fecha de lectura: 17-07-2012
We present a microscopic first-principles study of the neutral structural domain walls (DWs) in the multiferroic hexagonal manganites, which have been shown to exhibit cross-couplings between ferroelectricity and struc- tural antiphase. We find that, in contradiction with previously proposed models, the interlocked an…
The team has won gold medal at National Research and Innovation Competition (NRIC) 2012, 17th - 19th July 2012 was held at Dewan Utama Pelajar, located at USM Main Campus, Penang, Malaysia.
Abstract A new diol‐functionalized triazine‐based polymerizable hindered amine light stabilizer (HALS) was synthesized in two steps. First, selective synthesis of an s ‐triazine containing two HALS moieties as substituents was accomplished by using phase‐transfer catalysis. This step required the establishment of opti…
Peptide amphiphiles, synthesized by conjugating bioactive peptides to hydrophobic dialkyl tails, have been developed as a modular platform for immunotherapy, as discussed by M. Black, A. Trent and co-workers on page 3845. The image (by Peter Allen at UCSB) illustrates how the amphiphiles self-assemble into dynamic mic…
利用紫外光诱导还原金属前躯体硝酸银（AgNO3）,直接在聚乙烯醇（PVA）薄膜中生长银纳米颗粒,成功制备出PVA/Ag纳米复合材料薄膜。利用紫外-可见吸收光谱分析了银离子浓度、紫外光辐照功率和辐照时间对薄膜光谱的影响趋势。通过优化硝酸银浓度、辐照条件来调节薄膜中银纳米颗粒的尺寸和空间分布密度,成功地将此复合薄膜的等离子共振吸收峰位调节为406nm,并用于蓝光（405nm）激光直写光刻。扫描电子显微镜（SEM）观察表明,该材料中纳米颗粒分布均匀,粒径分布较窄;X射线光电子谱（XPS）证实了合成的纳米颗粒为单质银;原子力显微镜（AFM）分析显示薄膜光刻后获得了表面清晰、光滑、规整的图形。
Abstract The molded electrode test system (METS) test has long been used with flexible poly(vinyl chloride) (PVC) electrical insulation. However, there are many questions regarding its precision and accuracy, as there is no industry‐accepted standard regarding this test. This paper aims to answer some of these questio…
The past four years of incredibly intense research into Fe-based superconductors have brought about many unexpected surprises. Our understanding of their behavior and physical properties is constantly evolving. Unlike any other superconductors, those containing iron span diverse groups of materials: pnictides, chalcog…
The inside cover picture shows labile Fe3+ pools in live human SH-SY5Y cells imaged by a confocal microscope with a new Fe3+ sensor. This highly sensitive, selective and reversible turn-on Fe3+ sensor makes it possible to see endogenous labile Fe3+ in live cells at subcellular resolution for the first time. For furthe…
La búsqueda, por parte del ser humano, de bellos diseños, la selección de formas y colores de distintas piezas para sus muros y embaldosados, y la repetición sistemática de motivos produjeron patrones simétricos como ejemplos de teselados. Así mismo, la naturaleza ha encontrado bellísimos teselados resolviendo sus pro…
O presente trabalho contem o metodo do pulso de calor para a determinacao simultânea das propriedades termofisicas. O pulso termico e fornecido ao material atraves da dissipacao de um fluxo de calor gerado por uma resistencia eletrica. Uma simulacao numerica da experiencia e realizada com o objetivo de estudar a influ…
Hydrogen-free amorphous carbon (a-C) coatings with five Cr contents were synthesized by unbalance magnetron sputtering aiming to evaluate the influence of Cr contents on microstructure, mechanical and water-lubricated tribological properties sliding against ceramic balls, and subsequently located the range of optimum…
Graphene has received great interest from researchers all over the world owing to its unique properties. Much of the excitement surrounding graphene is due to its remarkable properties and inherent quantum effects. These effects and properties make it a desirable material for the fabrication of new devices. Graphene h…
We have investigated the combined effects of a multiplicative noise and nonlinear conductivity on the charge density wave (CDW) dynamics of the quasi-one dimensional conductor Rb0.30MoO3. When the amplitude of a bipolar rectangular voltage pulse excitation is modulated by a multiplicative Gaussian white noise perturba…