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2009 NOV 26 ... mass-loss effusion technique were used to determine the standard (p degrees = 0.1 MPa) molar enthalpies of combustion, Delta H-c(m)o and sublimation, Delta H-g(cr)m(o), ...
2009 NOV 25 ... of 298-318 K. The relaxation times of the mixtures show a maximum at an intermediate molar fraction of DMSO. The specific structure of mixtures in different concentration regions ...
2009 NOV 27 ... approach and modified with a water and tetrahydrofuran mixture having a H2O/THF molar ratio of 17:1 as potential adsorbent media for hydrogen storage. Hydrogen adsorption ...
2009 NOV 27 ... = 2-methyl benzimidazole are synthesized and characterized by elemental analysis, molar conductance measurements, magnetic susceptibility measurements, FAB mass, IR, ...
2009 NOV 25 ... the last one showed to be more active.""Moreover, the increase of Mn/Ce molar proportion from 22/78 to 70/30 increased the ozonation efficiency. The catalysts ...
2009 NOV 27 ... 5% AuCl3 for reaction with various primary alcohol acceptors, the latter used in 10-fold molar excess relative to donor. Donors containing the 2-butynyl group were more reactive, ...
2009 NOV 25 ... polarisation resistance when the amount of the replaced barium was increased up to 50% molar On the other hand, for praseodymium- or samarium-barium-based compositions, the minimum ...
2009 NOV 24 ... According to a study from Malaysia, "The effect of Cu/Al molar ratio on the high-temperature adsorption characteristics of CO2 on the mixed oxides of ...
2009 NOV 27 ... "The congruent vaporization of Sc(tmhd)(3) was verified from the molar mass of the vapor species obtained using ESI-mass spectra and thermogravimetry. On the ...
2009 NOV 24 ... researchers concluded: "The reaction conditions, such as oxidant, oxidant/AN molar ratio, HCl/AN molar ratio, and the reaction temperature had influence on the formation ...
2009 NOV 24 ... in diverse areas. In this work, TiO2-SiO2 porous materials with tunable Si/Ti molar ratio ® have been successfully prepared through a one-pot method under a ...
2009 NOV 24 ... content, the Lewis and Bronsted acid sites increased and reached the maximum when Zr/Si (molar ratio) = 1.3," investigators in Taiyuan, People's Republic of China ...
2009 NOV 26 ... a study "To investigate the root form and canal morphology of mandibular first molar teeth in a Taiwan Chinese population. A total of 183 mandibular first molars were ...
2009 NOV 24 ... analytical isotachophoresis can be used to measure directly, without calibration, the molar (particle) concentration of dispersed ionic colloids provided that the transference ...
2009 NOV 27 ... as carbon deposition. The MR is operated at 400 degrees C, H2O:C2H5OH = 11:1 as feed molar ratio and space velocity (GHSV) similar to 2000 h(-1).""A commercial ...
2009 NOV 27 ... uptake coefficients, net vapor fluxes toward ice crystals or ice films, steady state molar ratios of trapped molecules in the ice phase, and gas-ice partitioning factors. The ...
2009 NOV 27 ... oxidation by permanganate were dependent on HA concentration and permanganate/phenol molar ratios," investigators in Harbin, People's Republic of China report."The ...
2009 NOV 24 ... 1034 K. Cs2CeBr5 decomposes in the solid state into Cs3CeBr6 and CsCe2Br7 at 685 K. The third compound, CsCe2Br7, melts congruently at 877 K. The electrical conductivity of ... compounds, namely Cs3CeBr6, Cs2CeBr5 and CsCe2Br7; and three eutectics located at CeBr3 molar fraction x = 0.125; 0.459 and 0.700, respectively. Cs3CeBr6 undergoes a solid-solid ...
2009 NOV 24 ... scientists in Oporto, Portugal report."The standard (pA(0)A = 0.1 MPa) molar enthalpies of formation in the condensed phase, at T = 298.15 K, were derived from the ...
2009 NOV 24 ... activation of carbon xerogels synthesized with different resorcinol/sodium carbonate molar ratios (R/C) was performed using alkaline hydroxides (KOH and NaOH). The effect of R/C ...
