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Showing 1 to 8 of 8 for “"high pressure effects"”.
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High pressure effects on electron transport and structure of colossal magnetoresistive materials
Pressure effects on the electronic, magnetic properties and structure of several typical colossal magnetoresistive manganites, La_{0.60}Y_{0.07}Ca_{0.33}MnO_3, Pr_{1-x}Ca_xMn0_3 (X = 0.25, 0.30, 0.35), Nd_{1-x}Sr_xMnO_3 (x = 0.45, 0.50), were explored through high pressure resistivity and structure …
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High Pressure Effects on the Dynamics and Kinetics of Two Model Biochemical Systems
Pressure effects on rate constants for hydrogen exchange between N-methylacetamide (NMA) and water were measured at pressures up to 5 kbar at three different pH values and temperatures using proton/nitrogen-14 decoupled NMR inversion transfer, and the apparent activation volumes of exchange …
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High Pressure Effects on the Band Structure and Dye-Sensitized Photospectra of Semiconductors
The effect of high pressure (to 10 kilobars) on the band edge structure of n-TiO(,2), n-CdS, and n-CdSe has been investigated using an electrochemical technique. This study presents a novel method of measuring the energy of the band positions. It was found that the 3 meV/kbar increase in the …
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A Numerical Study of the Multi-Component Effects on the Combustion and Evaporation of Biofuels and Blends
… internal circulation, surface regression and high pressure effects are all accounted for. The model is shown to reproduce in a satisfactorily manner, experimental measurements adopted from the literature. The model is applied to predict the evaporation of single component (distribution) and …
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In Situ High-Pressure Study of Metal-Organic Frameworks and Their Performance for CO2 Storage Probed by Vibrational Spectroscopy
… performance, which require extreme loading pressures that are far beyond ambient pressure at times. Application of high external pressure (e.g., in gigapascal range) on MOFs can significantly alter the framework structure, pore opening and consequently the adsorption properties. This Ph.D. …
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A droplet evaporation model for high temperature and pressure spray applications
… droplet evaporation model, suitable for the high temperatures and high pressures encountered in diesel engines, has been developed, based on an extensive review of previous work on droplet evaporation. The new model includes the dependence of gas and liquid thermodynamic and transport …
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A numerical study of the multi-component effects on the combustion and evaporation of biofuels and blends
… However, previous studies have shown mixed effects of biodiesel on NOx emissions. Operating a compression-ignition engine in low- temperature combustion mode as well as using multiple injections can reduce NOx emissions. The effects of injection timing, spray angle and fuel composition are …
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Lifshitz transitions in RCo5 (R=Y, La) and in Osmium
… through the Fermi energy we used hydrostatic pressure, which is mimicked in the computations by decreasing the volume of the unit cell. The materials under consideration had been YCo5 and LaCo5 as examples for magnetic compounds and the element Osmium as an example for a non-magnetic material. …