Materials Literature
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In 1941, the SAE Iron and Steel Division in collaboration with the American Iron and Steel Institute (AISI) made a major change in the method of expressing composition ranges for the SAE steels. The plan, as now applied, is based in general on narrower ladle analysis ranges plus certain product (check) analysis allowa…
Annex 1 A. Documented and extrapolated values of DSi for the different COSCATs (numbering and names after Meybeck et al. 2006) for Africa.Budget Results (SiO2) Concentration COSCAT Nr.COSCAT name A (M km 2 ) Annex 1 B. Documented and extrapolated values of DSi for the different COSCATs (numbering and names after Meybe…
Established in 1964, the IUCN Red List of Threatened Species has evolved to become the world’s most comprehensive information source on the global conservation status of animal, fungi and plant species.
Photochromism of spirooxazines is initiated by fast photo-induced ring-opening reaction on the excited state potential energy surface (PES) accompanied with colouration, followed by slow thermally backward ring-closing reaction on adiabatic ground state PES.We herein report the analysis on the reaction rate using a va…
Nobel metal nano-structures exhibit characteristic optical absorption so-called plasmon resonance, resulting in excitation of collective oscillation of free electrons. This absorption is accompanied by enhancement of electromagnetic field in close proximity of the nano-structure. A gold nano-ring is one of the candida…
O hamiltoniano de Rabi descreve a interação entre um átomo de dois níveis e um único modo de um campo eletromagnético quantizado. Neste trabalho estudamos numericamente e analiticamente a dinâmica do hamiltoniano de Rabi sujeita aos reservatórios de fase e decaimento, introduzidos na equação mestra através dos operado…
Abstract : This report results from a contract tasking ICMCB-CNRS as follows: One of the most appropriate techniques to study the structural features of amorphous materials and to characterize the electronic structure (chemical bond) is X-ray absorption spectroscopy near edge structure (XANES). Synchrotron radiation w…
In der vorliegenden Arbeit wurden Glucose-6-Phosphat Isomerasen (PGIs) und archaeelle Glucosamin-6-Phosphat Deaminasen (GPDAs) untersucht sowie erstmalig die Aktivität einer archaeellen Glutamin:Fructose-6-Phosphat Transaminase nachgewiesen. Neuartige PGIs aus Methanothermobacter thermoautotrophicus, Methanosphaera st…
Triturador Ultra420, fabricado a partir de liga metalica pesada de alta qualidade. Durabilidade e esperado. Este moedor e melhor o do que moedores de aluminio. E tambem muito mais forte do que o aluminio. Os 54 dentes moagem neste moedor vai rasgar atraves de qualquer mistura de ervas. Compra com total qualidade na Ul…
We use molecular mechanics (MM) simulations with the tight-binding (TB) potential to study local and global instabilities in initially defect-free finite specimens of gold crystals deformed in shear, simple shear, tension/compression, simple tension/compression, and triaxial tension/compression. The criteria used to d…
Nuclear magnetic resonance is the "gold standard" technique to quantify the ventricular volume, the ejection fraction, and the myocardial mass. In patients suffering from ischemic cardiopathy, the ejection fraction is the most important prognostic parameter, even above from lessoned arteries index. An adequate diagnos…
For the inner surface DLC (Diamond Like Carbon) coating of narrow tubes, we have investigated on CVD & PVD hybrid process with the 2nd harmonic electron cyclotron resonance (ECR) plasmas.From the analysis of Raman spectrum, it was confirmed that DLC could be prepared on the substrate.
Substrate bias effects on the deposition process of amorphous carbon films were investigated by using infrared spectroscopy in multiple internal reflection geometry (MIR-IRAS). The density of the sp-CH species was increased in amorphous carbon films with substrate bias; on the other hand, the density of the sp3-CHX (X…
Proton conducting membranes were prepared by using epoxy-resin-silica hybrid polymer as flexible matrix and Cs-doped phosphotungstic acid PWA (Cs-PWA) as proton conducting networks. Cs-PWA was well dispersed and the membranes exhibited good flexibility. Thermogravimetric analysis indicated that the membranes were stab…
Nanoporous composite electrodes for rechargeable power sources were successfully fabricated by coating porous carbon with thin V2O5 gel layers. Their electrochemical properties were demonstrated, which took after both lithium ion batteries and electrochemical double layer capacitors. The nanoporous V2O5/carbon composi…
It was investigated that characteristics of DLC thin films deposited to extra fine wire by CH4 gas, Ar gas and CH4/Ar gas mixtures. It was found that the characteristics of films are change depending on mixture rate of the gases.
Molecular dynamics simulations of a charged colloidal suspension in the salt-free regime show that the system exhibits an electrical conductivity maximum as a function of colloid charge. We attribute this behavior to two main competing effects: colloid effective charge saturation due to counterion 'condensation' and d…
A Saltstone waste form was prepared in the Savannah River National Laboratory from a Tank 50H sample and Z-Area premix material for the first quarter of calendar year 2008 (1QCY08). After the prescribed 28 day cure, samples of the saltstone were collected, and the waste form was shown to meet the South Carolina Hazard…
Abstract Nanocontainer aus Zeolith‐A‐Kristallen wurden mit Fluoreszenzfarbstoffen befüllt und als Kern eines “Kasten‐im‐Kasten”‐SiO2‐Konstrukts, ähnlich einer russischen Matroschka, verwendet, wie A. Guerrero‐Martínez, L. de Cola et al. in der Zuschrift auf S. 1292 ff. schildern. Die anisotropen Kerne und isotropen Sc…
Zn-Te compound semiconductors were synthesized in aqueous solution using electrodeposition technique. During the co-deposition of Zn and Te, under potential deposition (UPD) of Zn was observed. By rising the solution temperature up to 353 K, UPD of Zn was promoted by formation of Zn(OH)2. Band gap energy of Zn-Te film…