Materials Literature
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Staplabin and SMTPs, a family of triprenyl phenol metabolites of Stachybotrys microspora, enhance fibrinolysis by modulating plasminogen conformation to increase its susceptibility to activation by plasminogen activators. We found that the production of these metabolites were markedly elevated by feeding the microbial…
Poly[2,5-di(-2-thienyl)-pyrrole] [poly(SNS)] films up to 1.29 μm thick were anodically synthesized from a 5 mM monomer and 0.1 M solution at 0.50 mA cm −2 . These deposits with a large proportion of electroactive polarons compensated with dissolve upon reduction in this medium. Insoluble reduced films were synthesized…
N,N-Dimethyltetradecylamine N-oxide (DTAO) is an appropriate surfactant to form micelles able to host the iron(III) meso-tetrakis(2,6-dichlorophenyl)porphyrin [Fe(III)(TDCPP)]. The so obtained microheterogeneous catalyst can induce biomimetic redox processes on organic substrates in aqueous medium, using sunlight and…
Removal of NO/sub x/ in flue gas was investigated by using nonthermal plasma with catalysts. In this experiment, flue gas contained 5%-15% water vapor and hydrocarbons, as well as nitrogen, oxygen, and carbon dioxide. Catalysts tested in this paper were copper- and sodium-coated zeolite (CuZSM-5, NaZSM-5) and a conven…
55Mn nuclear magnetic resonance experiments are reported on a series of fully strained epitaxial La2 3Ca1 3MnO3 thin films on SrTiO3. We have found evidence of multiple phase segregation into ferromagnetic metallic and nonmetallic regions as well as regions that are nonferromagnetic and insulating. These insulating re…
To evaluate the aggressiveness power of cavitating flows and to improve prediction methods for cavitation erosion, the pressure waves emitted during bubble collapses were studied and simulated by means of the Keller's and Fujikawa and Akamatsu's physical models. The profile and the energy of the pressure waves emitted…
The radial magnetometric demagnetizing factor N/sub mr/ of a disk is calculated from the corresponding axial factor N/sub ma/ as a function of the ratio of thickness to diameter t/d and the susceptibility of material /spl chi/ by the formula N/sub ma/(t/d, /spl chi/= /spl chi/*) +2N/sub mr/[t/d, /spl chi/=-/spl chi/*/…
The isothermal electromigration (EM) test at wafer level can greatly reduce the test time from months to minutes. This plausible feature makes inline reliability monitoring a promising approach to enhance product reliability. Although most wafer-level reliability (WLR) tests are applied for process monitors and compar…
Series of dimeric compounds of different skeletal shapes consisting of two triad aromatic ester type mesogenic moieties connected via polymethylene spacers were synthesized and their liquid crystalline properties compared. The two mesogenic units are connected in either Hor T-shape or in linear fashion. In general, it…
To clarify the extension of the triple phase boundary (TPB), which directly affects the electrode polarization behavior, in the cermet layer of the Ni-zirconia anode, we studied the anodic polarization properties of four types of Ni-zirconia cermets (Ni-0YZC Ni-3YZC, and Ni-8YZC) on three types of zirconia electrolyte…
A number of new ruthenium polypyridyl complexes with mono- or di-(3-methoxystyryl) substituted bipyridines have been synthesized. The complexes were characterised by NMR, elemental analysis, UV-vis absorption and emission spectroscopy, and cyclic voltammetry. Electroactive polymer films of these complexes have been pr…
It is found that, with decreasing thickness of the crystals of TaS 3 and NbSe 3 quasi-1D conductors, the dependences of the conductivity of these crystals on temperature and electric field change from the form typical of bulk samples to a nearly power law behavior typical of 1D electron systems.
The high frequency EPR spectra of SrAl2O4 doped with gadolinium(III) as a probe are discussed, focusing on the sites occupied by the lanthanides. This is because the emission due to europium(II) of SrAl2O4:Eu,Ln (Ln: lanthanides) is significantly affected by such substitution. The EPR spectrum of SrAl2O4:Dy,Gd showed…
Glasses of the composition (100 − x) SrB4O7 (SBO)−x Bi2VO5.5 (BiV) (0 ≤ x ≤ 70) were fabricated by the splat quenching technique. The evolution of nanocrystallization of bismuth vanadate in the system 50 SBO–50 BiV (in mol%) was accomplished via controlled heat-treatment (in the temperature range 470–820 K) of the as-…
This paper presents results of analytical and experimental studies that give insight into the nature and mechanism of the generation of localized losses in the core joints, losses caused by core stacking-holes, and the increase of iron loss of the core material due to slitting. These three loss components alone have b…
The vapor-phase catalytic oxidation of benzyl alcohol was carried out over cerium-impregnated NaZSM-5 (Ce/NaZSM-5) and K-added Ce/NaZSM-5 catalysts. The main products were benzaldehyde and carbon dioxide, together with trace amounts of benzene and toluene. The effect of the added K on the catalytic activity in the ben…
Surface analysis techniques have been used to study the adsorption behavior of corrosion inhibitors on mild steel in carbon dioxide (CO2)-saturated brine media. In particular, polarized grazing angle Fourier transform infrared spectroscopy (PGA-FTIR) and x-ray photoelectron spectroscopy (XPS) have been used to investi…
This article deals with the transcrystallization of polypropylene on untreated, MAH-polypropylene grafted, and alkali treated jute fibers due to isothermal as well as non-isothermal crystallization conditions. In both cases, TCL-thickness as well as TCL growth initiation temperature were dependent on fiber treatment.…
Addition of [Ru(bpy)3][PF6]2 to [(C6H13)4N]4[S2Mo18O62] in CH3CN resulted in the formation of analytically pure [Ru(bpy)3]2[S2Mo18O62]. Insolubility in CH3CN and solubility in DMF allow solid state and solution phase electrochemical data to be compared. Voltammetric studies of [Ru(bpy)3]2[S2Mo18O62] adhered to a glass…
Soybean oil was epoxidized using peracetic acid prepared in situ from acetic acid and hydrogen peroxide with Dowex 50 W-8X as a catalyst. The epoxidized soybean oil was allowed to react with methylamine. The resulting adduct was identified and emulsified. The emulsified methylamine adduct was added at different concen…