Materials Literature
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The electronic conductance of networks of chemical vapor deposition grown double-wall carbon nanotubes comprising two populations of inner- and outer-wall diameter was measured by mechanically controllable break-junction methods. Two discrete conductances, $0.24{G}_{0}$ and $0.91{G}_{0}$ $({G}_{0}=2{e}^{2}/h)$, with n…
In the large family of polymers, the azobenzene derivatives represent one fascinating materials class, along with stylbene and azomethinic derivatives. This interest is explained by combination of the properties of anisotropy with the photoinduced behaviors. The photoinduced birefringence, relief grating, the high opt…
Nanocrystalline materials have shown great promise for a number of engineering applications ranging from structural and electronics to biomaterials and drug delivery. Nanoscale grain structures can cause tremendous improvements in strength, hardness and other mechanical properties. This is partially due to the suppres…
The purpose of this study is to investigate errors in quantitative analysis for estimating dopamine D(2) receptor occupancy of antipsychotics with agonist radioligand [(11)C]MNPA by numerical simulation, with particular attention to the validity of a quantitative approach based on the use of a reference region. Synthe…
From 1–3 April 2009, the 37th German Topical Meeting on Liquid Crystals took place at the University of Stuttgart. This traditional meeting of the German Liquid Crystal Society dates back to as ear...
Die Therapie einer entzündlichen rheumatischen Erkrankung mit Basistherapeutika, nicht steroidalen Antirheumatika, Kortikoiden, aber auch „Biologicals“ ist oft mit erheblichen Nebenwirkungen belastet, die Suche nach verträglichen Alternativen daher verständlich. Hier bieten sich pflanzliche Präparate an, sie sind sowo…
Microstructural features and thermal insulation capability of plasma sprayed nanostructured and traditional yttria partly stabilised zirconia (YPSZ: ZrO2–8Y2O3) coatings were investigated. Both nanostructured YPSZ coating and traditional YPSZ coating were mainly composed of non-transformable t-ZrO2 phases. The detaile…
The focus of this work centers on molecular structuring of surfaces. The surface modifications were achieved using plasma polymerization technology, specifically variable duty cycle pulsed plasmas. The results obtained demonstrate that both exacting film chemistry and film thickness control were achieved during deposi…
The US has a national set of codes and standards that address the use of hydrogen technologies. These documents are published by several organizations and are not all directly adopted by government authorities. The US Department of Energy (DOE) has acted as the central organizing group to identify these documents and…
Chaque année, d'innombrables collisions se produisent entre des avions en vol et des oiseaux. L'impact aviaire, menace redoutée par les pilotes, concerne tant l'aviation civile que son pendant militaire. Les statistiques démontrent que, même si fort heureusement le nombre d'accidents graves reste limité, les incidents…
North Carolina State University Theses Electrical and Computer Engineering.
We have investigated the electronic states of the uranium monochalcogenide US, which is a typical ferromagnetic uranium compound, using soft x-ray photoemission spectroscopy (SX-PES). In early ultraviolet photoemission spectroscopy studies, two peak structures of the U 5f states were observed and have been interpreted…
Heart disease is one of the major causes of death in developing and industrialized countries. Myocardial infarction leads to remodeling of the left ventricle, which severely affects the pumping efficiency of the heart. In order to provide mechanical support to left ventricle the scaffold material should be elastic and…
We present results of ab-initio calculations of the electronic band structure, lattice dynamical properties, and elastic constants of LaOFeAs, the parent compound of the recently discovered superconducting iron-oxypnictide (LaO1-xFxFeAs). The total and partial electronic density of states (EDOS) of the undoped LaOFeAs…
We studied the rheological behavior of a molecular solution composed of $α$-cyclodextrin, water and 4-methylpyridine, a liquid known to undergo inverse melting, at different temperatures and concentrations. The system shows a marked non-Newtonian behavior, exhibiting the typical signature of shear thickening. Specific…
The realization that most diseases are preceded or accompanied by changes in the genetic and cellular level of an organism has increased with the need for imaging modalities, with the sensitivity and specificity, to quantitatively detect biomolecules at those levels. Specifically there has been a need for the developm…
Copper indium gallium sulphide thin films have been fabricated by chemical vapour deposition with metal halide precursors and S2Cl2 and H2 reactive gases. The CVD-grown CIGS thin films have been characterized by scanning electron microscopy, energy dispersive X-ray analysis, X-ray diffraction analysis, and UV-VIS-NIR…
In the summer of 2008 when oil prices surged to US$150 a barrel, up from US$60 the year before, this caused plenty of anger from motorists at the pumps being forced to pay an amount that was way ab...
Surface plasmon propagation along a periodically corrugated metallic–air interface can be completely suppressed due to the formation of an equivalent dielectric metamaterial layer with a large real part of its effective refractive index. The effect can be explained by the transformation of the surface plasmon excitati…
The shield or shadow effect of large particles on bacteria undergoing irradiation from ultraviolet light in effluent of treated wastewater would greatly reduce the effectiveness of ultraviolet disinfection. The objective of this work is to evaluate the newly proposed method of applying a high pressure water jet (HPWJ)…