Environmental considerations will probably change automobile fuels from gasoline and gas-oil to hydrogen (as fuel cell) in the future. Problems of fossil fuels include producing gaseous pollutants, such as NOx, CO, and even SO2 (from incomplete-hydrotreated fuels), which need catalytic converters and greenhouse gas emission (such as CO2, CH4, N2O) from the exhaust with a drastic effect on globa...

We investigated marinade absorption and physicochemical characteristics of vacuum-aged duck breasts that were halved and individually vacuum-packed for chiller aging at 4°C for 14 d. One half was marinated for 0, 7, or 14 d, while the second half was used as a control. Marinade absorption, cooking loss, cooking yield, texture profile, pH, color, protein solubility, and thiobarbituric acid react...

Using a computer simulation this paper presents a few selection implications when the condensing unit of an existing R22 water-cooled chiller is to be replaced by a new unit that is originally sized for a different refrigerant. The selection of a new unit is assumed to be based purely on the information available in typical product catalogues. The performance of the upgraded (or retrofitted) sy...

Femto-second transient absorption spectroscopy has been applied to investigate the back-electron transfer process after the photo-excitation of p-nitroaniline (PNA) in water from ambient to supercritical condition. After PNA was photo-excited at 400 nm, the bleach recovery signal was observed due to the back-electron transfer from the excited state to the ground state within about 1 ps. In the ...

The biokinetics of radon in the body has previously been studied with the assumption that its absorption through the skin is negligibly small. This assumption would be acceptable except in specific situations, such as bathing in a radon hot spring where the radon concentration in thermal water is far higher than that in air. The present study focused on such a situation in order to better under...