Materials Literature
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O crescimento das atividades industriais, das frotas de veículos (leves e pesados) e do consumo de energia (proveniente das termoelétricas) promove diretamente o aumento da concentração de gases poluentes na atmosfera tais como CO, CO2, NOx e SOx, levando ao agravamento de problemas de saúde humana e ambientais. A leg…
This invaluable volume set of Advances in Geosciences continues the excellent tradition of the Asia-Oceania scientific community in providing the most up-to-date research results on a wide range of geosciences and environmental science. The information is vital to the understanding of the effects of climate change and…
Made available in DSpace on 2017-07-21T20:42:40Z (GMT). No. of bitstreams: 1 JULIANO Swiech Ciesielski.pdf: 2201955 bytes, checksum: acf9e0e88f80e1076d0bd050b2d0f0a7 (MD5) Previous issue date: 2012-07-31
Abstract : This report summarizes results supported by grant no. FA9550-09-1-0256. We report: 1. Development of new n-type dopants 2. Synthesis of semiconducting polymers based on acenes; 3. Tuning threshold voltage of organic transistors with self assembled monolayers; 4. A new method to achieve high mobility aligned…
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We show that that the non-equilibrium spin polarization of one dimensional helical edge states at the boundary of a two dimensional topological insulator can dynamically induce a polarization of nuclei via the hyperfine interaction. When combined with a spatially inhomogeneous Rashba coupling, the steady state polariz…
We observe the formation of heaps of repulsive microspheres, created by flowing a colloidal microsphere suspension towards a flat-topped ridge placed within a quasi two-dimensional microfluidic channel. This configuration allows for both shear and normal forces on the microspheres in contact with the ridge. The heaps,…
The present work reports on the preparation of transparent conducting oxide, based on ZnO films deposited using DC reactive magnetron sputtering. Structural, optical and electrical properties of ZnO films were investigated as a function of B- doping level (0-2 at %) in the target. XRD analysis results show that, all f…
Neste trabalho foram realizadas simulacoes de dinâmica molecular quântica para as reacoes de abstracao de hidrogenio nas moleculas de metano, silano, germano e estanano por atomos de H, F, Cl, e I sendo realizadas simulacoes sem e com o uso do pulso de laser de femtosegundos com o objetivo de favorecer a quebra das li…
Transparent conducting ZnO:Al thin films have been prepared by the DC reactive plasma emission monitoring (PEM) control system. The four-point probe was employed for sheet resistance measurements of the films. Changes were studied of ZnO:Al film properties with PEM and high voltage set points. The sheet resistance of…
Neste trabalho, o material mesoporoso MCM-41 foi funcionalizado com 3-aminopropilmetoxisilano (APTS) para diversas finalidades como, adsorcao do corante vermelho de remazol, imobilizacao de ions lantanideos (Eu+3, Tb+3 ou Gd+3), coordenacao com o acido 2,6-piridina-dicarboxilico (dpa) e imobilizacao do complexo [RuCl2…
Koncentrace latek v parenteralnich infuzich musi být chapana v osmotických souvislostech. Proto je požadavkem na infuzni připravky jejich oznaceni osmolaritou (mosmol/l). Osmolaritu vsak nelze změřit. Osmometry poskytuji osmolalitu (mosmol/kg). Experimentalni výsledky měřeni hustoty a osmolality vodných roztoků parent…
In this thesis the thermo-mechanical properties of single?walled carbon nanotubes are investigated utilizing carbon nanotube based nanoelectromechanical oscillators. These resonator devices are highly sensitive to changes in tension on the carbon nanotube. In Chapters 4 the coefficient of thermal expansion of an indiv…
The goal of the project was to investigate the possibility of building a very high intensity polarized electron gun for the Electron-Ion Collider. This development is crucial for the eRHIC project. The gun implements a large area cathode, ring-shaped laser beam and active cathode cooling. A polarized electron gun cham…
Gas karbon monoksida adalah gas yang tidak berbau, tidak berwarna, tidak larut dalam air tetapi beracun. Sehingga diperlukan sebuah sensor gas untuk mendeteksi keberadaan tersebut. Tujuan penelitian ini adalah untuk mempersiapkan material WO3 sebagai sensor gas CO. Untuk mensintesa nanomaterial WO3 ini digunakan metod…
Adhesive bandages are widely used for wound healing treatment. However, use of these bandages on fragile skin can aggravate healing problems as fragile skin is susceptible to break while changing wound dressings. To overcome this difficulty, a new approach has been proposed to develop temperature sensitive bioadhesive…
We report new measurements for the amplitude of sidebranches in the dendritic crystal growth of ammonium chloride from supersaturated aqueous solutions. No simple power law is found to describe either the growth of the average sidebranch amplitude or the average sidebranch envelope. Instead, the effective power law ex…
Recently a large number of research and development has been made regarding the use of Laser in welding operations, turning this process into an important tool for a variety of applications. Although it is possible to use Laser as a unique source of heat to promote union of materials, the combination of the beam provi…
During the course of this research we published 33 papers in various physics/material journals. We select four representing papers in this report and their results are summarized as follows. I. To study shear banding process, it is pertinent to know the intrinsic shear strain rate within a propagating shear band. To t…
Colangelo, Pietro. (2012). New Charmonium Spectroscopy. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/130068.