In this work, we show that the same theoretical tools successfully explain other hydrides systems under pressure seem to be at odds with recently claimed conventional room temperature superconductivity of carbonaceous sulfur hydride. We support our conclusions I) absence a dominant low-enthalpy stoichiometry and crystal structure in ternary phase diagram. II) Only thermodynamics C-doping phases...

Lipid bilayer membranes are important as fundamental structures in biology and possess characteristic water-permeability, stability, and mechanical properties. Water permeation through a lipid bilayer membrane occurs readily, and more readily at higher temperature, which is largely due to an enthalpy cost of the liquid-to-gas phase transition of water. A fullerene bilayer membrane formed by dis...

A cup of coffee contains mutagens which produce about 5 X 10(4)-10(5) revertants of Salmonella typhimurium TA 100 without S9 mix. One of the mutagens was identified to be methylglyoxal. Methylglyoxal was present in various beverages such as black tea, whisky, and brandy. Methylglyoxal itself induced tumors in rats when administered by subcutaneous injection. However, the mutagenic properties of...

A new modification of potassium hydrogen malonate was obtained by crystallization from dimethylsulphoxide (DMSO)' solution. Its infrared spectrum differs in its essential features from the spectra of the known modification crystallizing from water!-" but resemble those of guanidinium hydrogen malonate. Both spectra are interpreted in terms of strong, intramolecular hydrogen bonding, This is sup...

The loading characteristics of hydrogen gas in electrically self-heated nickel wires was investigated with a view to maximise hydrogen absorption and thereafter "trigger" it to generate anomalous excess heat as reported by Focardi et. al in early 1994. The nickel wires were found to absorb substantial quantity of hydrogen following several alternate cycles of absorption/desorption. But calorime...

Combined thermodynamical and structural studies have confirmed the occurrence of multimode hydriding/dehydriding reactions of CaPd that vary depending on temperature, and that these reactions proceed via hydrogen solution/dissolution in the temperature range 273-523 K and via phase decomposition/recombination in the temperature range 523-773 K.

By use of data for surface tension, for the first time a method is presented for calculating true molar surface properties of liquids: free energy, entropy, and enthalpy. These new data allow full comparison with other molar quantities, such as enthalpy and entropy of vaporization. All data are at the normal boiling point. There are differences in behavior between various classes of nonpolar co...

Concerning the PdH-system, the processes at the surface (H2-dissociation, surface diffusion) have been described in [2] in two chapters, p. 84 ff. and 134ff. At about the same time, Minnerup [3] showed that the entrance of the H atoms into the Pd-lattice does not start before the external surface is covered by a hydro­ gen monolayer. Minnerup further showed that the H-atoms between the surface ...

We report that the common polyalcohol D-mannitol may have two amorphous phases related by a first-order transition. Slightly above its glass transition temperature Tg (284 K), the supercooled liquid (SCL) of D-mannitol transforms to a low-energy, apparently amorphous phase with stronger hydrogen bonds. The enthalpy of this so-called Phase X is approximately halfway between those of the known am...