Materials Literature
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Carbon distribution is responsible for stability and structure of proteins. Arrangement of carbon along the protein sequence is depends on how the amino acids are organized and is guided by mRNAs. An atomic level revision is important for understanding these codes. This will ultimately help in identification of disord…
Abstract 2,3,6,7-Tetrapropoxy- and 2,6-dipropoxy-substituted 9,10-anthraquinone (AQ) and anthracene (ANT) derivatives were synthesized, and their optical properties in solution and in the solid state were investigated. In AQs, the tetrapropoxy derivative exhibited a red shift of absorption in comparison with the dipro…
The electronic structures and optical properties of graphyne consisting of sp- and sp 2 -hybridized carbon atoms are studied using first-principles calculations. A tight-binding model of the 2p z orbitals are proposed to describe the electronic bands near the Fermi level. The results show that the natural band gap of…
Porous Co(OH) 2 film directly grown on nickel foam is prepared by a facile hydrothermal method. The as-prepared Co(OH) 2 film possesses a structure consisting of randomly porous nanoflakes with thicknesses of 20–30 nm. The capacitive behavior of the Co(OH) 2 film is investigated by cyclic voltammograms and galvanostat…
A theoretical study of the newly identified Ti5Al2C3 belonging to the MAX phases has been performed by using the first-principles pseudopotential plane-wave method within the generalized gradient approximation (GGA). The energy band structure and optical properties are reported for the first time. It is seen that Ti 3…
The (extended) lowest order constrained variational ((E) LOCV) method was used to calculate the ground state energy of liquid helium 3 (3He) droplets at zero temperature. Different types of density distribution profiles, such as the Gaussian, the Quasi-Gaussian and the Woods-Saxon were used. It was shown that at least…
2.18 Energias de dupla ionizao para H 2 O obtidas com CI-MCV e Dyson-MCV
Αντικείμενο της παρούσας εργασίας είναι η αναλυτική διερεύνηση της αποτελεσματικότητας της εφαρμογής ινοπλισμένων πολυμερών ως μέσο ενίσχυσης σε στοιχεία από οπλισμένο σκυρόδεμα και από φέρουσα τοιχοποιία. Γίνεται παρουσίαση με σαφή τρόπο των ιδιοτήτων των σύνθετων υλικών και της χρησιμότητας τους, ενώ παράλληλα γίνετ…
But agency keeps enrichment company's loan guarantee application on hold until commercial viability is demonstrated.
将合成的导电聚(3,4-乙撑二氧噻吩)-聚对苯乙烯磺酸(PEDOT-PSS)与聚乙烯醇(PVA)共混, 通过湿法纺丝, 得到了电导率较高、力学性能良好、可进行机织的PEDOT-PSS/PVA复合导电纤维, 研究了牵伸倍率对纤维导电性能、结构、热性能和力学性能的影响。结果表明: 随着牵伸倍率的增加, PEDOT-PSS/PVA复合导电纤维表面的微纤数量增加, 结晶性能、热稳定性及力学性能均有所提高; 当PEDOT-PSS/PVA复合导电纤维的牵伸倍率为4.0时, 其断裂强度、伸长率和初始模量分别为6.74 cN/dtex、5.95%和42.43 cN/dtex, 电导率可达到34.5 S/cm, 具有良好的应用性能。
Les alginates, polysaccharides extraits des algues brunes, sont des copolymeres a blocs lineaires formes d'unites mannuronates (M) et guluronates (G). Leur structure depend de la source naturelle. La complexation de cations divalents ou trivalents (sauf Mg2+) par les fonctions carboxylates conduit a la formation d'un…
Les alginates, polysaccharides extraits des algues brunes, sont des copolymères à blocs linéaires formés d'unités mannuronates (M) et guluronates (G). Leur structure dépend de la source naturelle. La complexation de cations divalents ou trivalents (sauf Mg2+) par les fonctions carboxylates conduit à la formation d'un…
Polymères en milieu aléatoire : influence d'un désordre corrélé sur le phénomène de localisation Cette thèse porte sur l'étude de modèles de polymère en milieu aléatoire: on se concentre sur le cas d'un polymère dirigé en dimension d+1 qui interagit avec un défaut unidimensionnel. Les interactions sont possiblement no…
In der vorliegenden Arbeit wird das Hauptaugenmerk auf die Untersuchung der Auswirkungen einer Modifikation der zugänglichen Prozessparameter auf die funktionalen Eigenschaften oxidischer Dünnfilme während der gepulsten Laserabscheidung (PLD) gelegt. Der erste Teil der Arbeit stellt die Herstellung von BaTiO3/SrTiO3-M…
Pentaguanidinium monohydrogendiphosphopentamolybdate(VI) 2.5-hydrate, (CH 6 N 3 ) 5 [HP 2
Thesis (M.Sc.) -- İstanbul Technical University, Institute of Science and Technology, 2020
O carbeto de boro é um material sintético com ligações químicas essencialmente covalentes, tem um alto ponto de fusão só é sinterizável em elevada temperatura. Possui excepcional dureza, baixa densidade, resistência a abrasão, elevada velocidade sônica e boas propriedades mecânicas, características ideais para as apli…
Focus Controlled nuclear fusion has the potential to provide a clean, safe energy source with an essentially limitless supply of fuel, relatively few proliferation concerns (compared with those mentioned in Chapter 14), and substantially fewer of the waste-management concerns discussed in Chapter 15. Large experimenta…
С 28 мая по 1 июня 2012 г. в Москве в павильонах №№1-5, 8, «Форум» и на открытых площадках ЦВК «Экспоцентр» пройдёт 13-я международная специализированная выставка «Оборудование, приборы и инструменты для металлообрабатывающей промышленности» - «Металлообработка-2012».
Features of electrotechnology of microarc oxidation of light (Al, Mg, Ti) alloys are considered. A module with current displacement effect was developed and described. It allows to control the ratio of cathode and anode currents and the rigidity of mode in condensing AC inverters which are widely used for this technol…