Materials Literature
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QM/MM calculations of Mossbauer parameters lead to assignments of the three isomeric species of CPO-II, "major", "minor", and unassigned "6% species", which were recently observed in experiment and posed two puzzles (Stone, K. L.; Hoffart, L. M.; Behan, R. K.; Krebs, C.; Green, M. T. J. Am. Chem. Soc. 2006, 128, 6147)…
Abstract Low-pressure, lean, laminar, premixed hydrogen/oxygen/argon flames seeded with iron pentacarbonyl (35−170 ppm Fe(CO)5) were modeled with detailed chemistry and the results were compared to laser-induced fluorescence imaging measurements of iron atom concentration and gas-phase temperature. The model includes…
The replacement of exposure tools with shorter wavelengths has been historically repeated to obtain increasingly high-quality images in lithography for the mass production of semiconductor devices. In this study, the latent image quality in chemically amplified extreme ultraviolet resists was theoretically investigate…
Introdução: O propósito desse estudo foi comparar os resultados obtidos através das equações de estimativa de percentual de gordura (%G) de Jackson & Pollock de três dobras cutâneas (3DC) e sete dobras cutâneas (7DC). Materiais e Métodos: A amostra foi composta por um grupo de 51 indivíduos, 30 do gênero masculino e 2…
Tool wear plays an important role in cutting process research. It affects the quality of machined surface and cutting parameter to a great extent, such as cutting force, cutting temperature and cutting quiver. In order to predict tool wear in hard cutting process by using FEM method, the character of tool wear during…
In the 1980s a series of the Haut Taux de Combustion (HTC) critical experiments with fuel pins in a water-moderated lattice was conducted at the Apparatus B experimental facility in Valduc (Commissariat á l’Energie Atomique, France) with the support of the Institut de Radioprotection et de Sûreté Nucléaire and AREVA N…
This paper describes the results of an experimental investigation into the origin and reduction of stator radial vibration of switched reluctance motor (SRM) drives in voltage pulse width modulation (PWM) mode. The experimental results in time domain analysis combined with frequency domain analysis reveal the stator r…
介绍了两种在壳聚糖-聚丙烯酸纳米微粒(CS-PAA NPs)表面进行生物矿化制备聚合 物-磷酸钙复合纳米微粒(CS-PAA-CaP NPs)的方法: 氨水滴加法和尿素热分解法. 氨水滴加法得到的复合纳米微粒形状不规则; 尿素的热分解使磷酸钙在CS-PAA粒子表面矿化, 获得形貌规则的复合纳米微粒. 通过动态光散射(DLS)、透射电子显微镜(TEM)、扫描电子显微镜(SEM)、热重分析(TGA)和X-射线衍射(XRD)对由尿素热分解法得到的复合纳米微粒进行了表征. 实验结果表明, 尿素热分解矿化方法可以避免CS-PAA粒子在碱性环境中沉淀, 得到具有多孔结构的复合纳米粒子, 粒径约为400~600 nm; 此复合粒子中无机成分约占2…
The interfacial bonding strength between ultraviolet-curing resin and diamond is a key factor affecting tool properties in manufacturing of ultraviolet-curing wire saw. Therefore, in this paper, the application of surface-modified diamond coated metal was studied in ultraviolet-curing wire saw aim at retention problem…
Plasma generation and control technologies for meters-scale ultra-large-area plasma sources have been developed with multiple low-inductance antenna (LIA) modules, as a promising candidate of ultra-large-area and high-density plasma sources for next-generation processing of hybrid flexible devices. Properties of argon…
The first part of this paper aims to illustrate the possibility to control the shape of the top of a tapered silicon via using an SF6/O2chemistry with high etch rate (~14 mum/min). This etch has been performed using an ICP machine, customized for this type of etch. Usually, for such a tapered etch process, a local bow…
The era of 'modern medicine' has changed its name to 'molecular medicine', and reflects a new age based on personalized medicine utilizing molecular biomarkers in the diagnosis, staging and monitoring of therapy. Alzheimer's disease has a classical biomarker determined at autopsy with the histologic staining of amyloi…
Phenylhydrazones containing hydroxy, alkoxy and acyloxy groups are synthesized from aromatic aldehydes of vanillin series by reaction with phenylhydrazine.
We demonstrate for the first time a fluorine incorporated band- engineered (BE) tunnel oxide (SiO2/HfSiO/SiO2) TANOS with excellent program / erase (P/E) characteristics and endurance to 105cycles. Incorporating fluorine in the tunnel dielectric improves Si/SiO2interface resulting in excellent endurance of nearly cons…
Requirements for the reduction of both pollutant emissions and fuel consumption mean that there is a need to design of new engine concepts (e.g. HCCI, CAI, etc.). To reduce the time of the development loop for these concepts, 1D approaches can be used to simulate whole-engine behaviour. These approaches are based on p…
Ultraviolet (UV) and visible light active photocatalysts, 13–20 nm in size, were prepared by doping iron into anatase TiO2 (Fe/Ti at. ratio: 0.11% and 0.49%). Greater Fe dosage led to stronger light absorbance in both UV and visible regions, and also to generally better photocatalytic activity. Fe2+ and Fe3+ coexisted…
Abstract Few electron optical inventions have revolutionized the TEM/ STEM as profoundly as the spherical aberration (Cs) corrector has. Characterization of technologically important materials increasingly needs to be done at the atomic or even sub-atomic level. This characterization includes determination of atomic s…
Abstract Shear‐induced structures were investigated for both ultrahigh molecular weight atactic polystyrene (UHMWaPS) and linear polyethylene (UHMWPE) solutions, which were entangled but homogeneous without shear flow, as a function of shear rate ($\dot \gamma $ ) or time after a step‐up shear flow. For the PE solutio…
En ligne: http://www.springerlink.com/content/12080xhx58658575/
A theory of X-ray diffuse scattering from crystals with randomly distributed spherically symmetric clusters characterized by a statistical spread of sizes with respect to their mean has been developed. This consideration is performed within the model of defects whose strains, in contrast to the well-known Coulomb clus…