Browsing by Subject "phase transition"
Now showing items 1-12 of 12
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Crystal/glass phase change in KSb5S8 studied through thermal analysis techniques
(2004)The reversible crystal-glass and glass-crystal transitions discovered in KSb5S8 were studied in detail with nonisothermal scanning calorimetry techniques. When cooled, molten KSb5S8 becomes a metastable glass, which can ...
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Evolution of osmotic pressure in solid tumors
(2014)The mechanical microenvironment of solid tumors includes both fluid and solid stresses. These stresses play a crucial role in cancer progression and treatment and have been analyzed rigorously both mathematically and ...
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Experimental and theoretical studies on physico-chemical parameters affecting the solubility of phosphogypsum
(2009)Phosphogypsum is a waste by-product of the phosphate fertilizer industry, which is usually disposed in the environment because of its restricted use in industrial applications. Physico-chemical conditions existing in stack ...
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Investigating the phase-dependent photochemical reaction dynamics of chlorine dioxide using resonance Raman spectroscopy
(2002)Recent progress in understanding the phase-dependent reactivity demonstrated by halooxides is outlined. Specifically, resonance Raman intensity analysis (RRIA) and time-resolved resonance Raman (TRRR) studies of chlorine ...
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A magnetostructural investigation of an abrupt spin transition for 1-phenyl-3-trifluoromethyl-1,4-dihydrobenzo[e][1,2,4]triazin-4-yl
(2014)1-Phenyl-3-trifluoromethyl-1,4-dihydrobenzo[e][1,2,4]triazin-4-yl is the first example of a hydrazyl radical that shows a reversible sharp spin transition fully completed within 5(1) K. The nominally first-order transition ...
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The protein effect in the structure of two ferryl-oxo intermediates at the same oxidation level in the heme copper binuclear center of cytochrome c oxidase
(2013)Identification of the intermediates and determination of their structures in the reduction of dioxygen to water by cytochrome c oxidase (CcO) are particularly important to understanding both O2 activation and proton pumping ...
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Relations of crystal structure to magnetic properties in the quasi-one-dimensional compound PbNi1.88Mg0.12V 2O8
(2004)The crystal structure of the quasi-one-dimensional oxide PbNi 1.88Mg0.12V2O8 has been studied by Rietveld analysis of combined high-resolution neutron and X-ray powder diffraction data at 300K and at low temperatures. The ...
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Simple and accurate computations of solvatochromic shifts in π → π* transitions of aromatic chromophores
(2001)A new approach is introduced for calculating the spectral shifts of the most bathochromic π → π * transition of an aromatic chromophore in apolar environments. As an example, perylene in solid and liquid n-alkane matrixes ...
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Simultaneous resonance Raman detection of the heme a3-Fe-CO and CuB-CO species in CO-bound ba3-cytochrome c oxidase from Thermus thermophilus: Evidence for a charge transfer CuB-CO transition
(2004)Understanding of the chemical nature of the dioxygen and nitric oxide moiety of ba3-cytochrome c oxidase from Thermus thermophilus is crucial for elucidation of its physiological function. In the present work, direct ...
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Time-resolved resonance Raman studies of halooxide photoisomerization kinetics
(2003)The condensed-phase photoisomerization dynamics of chlorine dioxide and dichlorine monoxide are investigated using femtosecond pump-probe and time-resolved resonance Raman. These studies demonstrate that photoisomerization ...
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Unpaired and spin-singlet paired states of a two-dimensional electron gas in a perpendicular magnetic field
(2002)We present a variational study of both unpaired and spin-singlet paired states induced in a two-dimensional electron gas at low density by a perpendicular magnetic field. It is based on an improved circular-cell approximation ...