Materials Literature
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BACKGROUND: Blood viscosity appears to be independent predictor of stroke, carotid intima-media thickening, atherosclerosis and most cardiovascular diseases. In an attempt to understand the toxicity and the potential threat of GNPs therapeutic and diagnostic use, an array of rheological parameters were performed to qu…
Experimental and computational experiments show that the electrophile MeS(+) attacks a single Fe center in Fe(2)(propanedithiolate)(CO)(4)(PMe(3))(2) followed by isomerization of this terminal thiolato complex to the corresponding μ-SMe derivative.
A new concept to prepare tight bifunctional catalysts has been developed, by anchoring CoMo(6) clusters on hierarchical ZSM-5 zeolites for simultaneous use in HDS and hydrocracking catalysis. The prepared material displays a significant improved activity in HDS catalysis compared to the impregnated counterpart.
La puissance debitee par les systemes solaires ne cesse d’augmenter, soit par l’amelioration du rendement de conversion, soit par la multiplication des techniques de fabrication des photopiles solaires. Devant l’offre de fortes sources d’energies conventionnelles a des prix relativement bas, l’utilisation du silicium…
Organic-inorganic thermoplastic composites offer a costeffective material choice with tuneable dielectric properties for various telecom components and applications.Typically such composites require substantial loading of inorganics to obtain a feasible level of permittivity at RF frequencies dramatically decreasing m…
In the automobile industry, Resistance Spot Welding (RSW) is widely used for its low cost, high speed, simple mechanism and applicability for automation. RSW has become the predominant means of auto body assembly, resulting in two to six thousands spot welds performed on each manufactured car. In the North American au…
This paper reports on hydrogenated amorphous silicon (a-Si:H) thin-film transistors (TFTs) processed at 150°C using plasma-enhanced chemical vapor deposition on polyethylene naphthalate (PEN) transparent plastic substrates. We examine the impact of RF deposition power on film stress of amorphous silicon nitride (a-SiN…
Emerging fields such as nanomedicine and nanotoxicology, demand new information on the effects of nanoparticles on biological membranes and lipid vesicles are suitable as an experimental model for bio-nano interaction studies. This paper describes image processing algorithms which stitch video sequences into mosaics a…
When the μ3-sulfido triiron cluster [SFe3(CO)9]2− was treated with BrCH2C(O)OCH3 in MeCN, the ester-functionalized complex [SFe3(CO)9(CH2C(O)OCH3)]− (1) was obtained. Cluster 1 displays a SFe3 tetrahedral core with one of the Fe atoms bonded to an ester ligand CH2C(O)OCH3. In contrast, when [SFe3(CO)9]2− was treated w…
This paper presents an implementation of a regenerative braking system in an electrically operated two wheeler using supercapacitors (SC), thus partially salvaging the heat energy previously dissipating due to friction. Kinetic energy is converted into useful energy in the developed system which gets converted in to h…
We discuss the identification of untangled graph embeddings for finite planar and non-planar graphs as well as infinite crystallographic nets. Two parallel approaches are discussed: explicit 3-space embeddings and reticulations of 2-manifolds. 2D and 3D energies are proposed that allow ranking of (un)tangled embedding…
A new ion-exchange adsorbent (IEA) derived from Fe(3)O(4)/SiO(2)-GPTMS-DEAE with paramagnetic properties was prepared. Fe(3)O(4) nanoparticles were firstly prepared in water-in-oil microemulsion. The magnetic Fe(3)O(4) particles were modified in situ by hydrolysis and condensation reactions with tetraethoxysilane (TEO…
Shot peening beneficial effects on fatigue life of mechanical components are well known. However, there are some reports in the literature that indicate inappropriate shot peening parameters tend to reduce the fatigue life. It is therefore, the purpose of this study to find a logical quantitative justification for the…
The crystal structure and dynamics of Mg(ND(3))(6)Cl(2) have been investigated by powder neutron diffraction and molecular dynamics. The powder diffraction data can be well described by 4 partly occupied deuterium sites in a square arrangement around the N atoms, which is seemingly inconsistent with the 3-fold symmetr…
This article presents a new technique for the detection of power quality (PQ) events by using statistically matched wavelet. The statistically matched wavelet is designed based on the characteristics of the PQ event using the concept of fractional Brownian motion. The proposed technique is compared with Daubechies wav…
In the last period, as a result of bot, the European projects funding and own funds, the logging companies from Romania have begun to improve their own machinery stock by acquiring last generation equipment - cable yarders, specialized for short and medium distances as a response to the technical, economic, silvicultu…
In this study, effects of mineral admixtures on water permeability and compressive strength of concretes containing silica fume (SF), fly ash (FA) and super pozz (SP) were experimentally investigated. Permeability of concrete was determined through DIN 1048 (Part 5). The research variables included cement type, ordina…
The one dimensional {Co(HBpe)2}(V4O12) inorganic–organic compound, where Bpe is 1,2-di(4-pyridyl)ethene (C12H10N2), has been synthesized using mild hydrothermal conditions under autogenous pressure at 120 °C for three days, obtaining single-crystals suitable for X-ray structure determination. The compound crystallizes…
A ureidocytosine (UCyt) module with a pendant amine linker at N-1 has been prepared for applications in supramolecular quadruple hydrogen bonded array synthesis. Subsequent conjugation to four amine terminated telechelic polymers led to the formation of oligomeric DDAA arrays, as determined by NMR diffusion measuremen…
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