In this presentation we overview some recent results on biased tracer diffusion in lattice gases. We consider both models in which the density of lattice gas particles is explicitly conserved and situations in which the lattice gas particles undergo continuous exchanges with a reservoir, which case is appropriate, e.g. to adsorbed monolayers in contact with the vapor phase. For all these models...

Observations of bubble evolution in rats after decompression from air dives (O. Hyldegaard and J. Madsen. Undersea Biomed. Res. 16: 185-193, 1989; O. Hyldegaard and J. Madsen. Undersea Hyperbaric Med. 21: 413-424, 1994; O. Hyldegaard, M. Moller, and J. Madsen. Undersea Biomed. Res. 18: 361-371, 1991) suggest that bubbles may resolve more safely when the breathing gas is a heliox mixture than wh...

In this presentation we overview some recent results on biased tracer diffusion in lattice gases. We consider both models in which the gas particles density is explicitly conserved and situations in which the lattice gas particles undergo continuous exchanges with a reservoir, which case is appropriate, e.g., to adsorbed monolayers in contact with the vapor phase. For all these models we determ...

Abstract Cocurrent and countercurrent units are common configuration of biomass and coal gasifiers. Moving solid beds contact a flowing gas phase, usually air, steam or their mixtures. Batch and fluidized bed reactors, or drop tube gasifiers are also alternative units. The complexity of these systems relies in several aspects: the chemistry of the released species in the first devolatilization ...

Herbivory alters plant gas exchange but the effects depend on the type of leaf damage. In contrast to ectophagous insects, leaf miners, by living inside the leaf tissues, do not affect the integrity of the leaf surface. Thus, the effect of leaf miners on CO2 uptake and water-use efficiency by leaves remains unclear. We explored the impacts of the leaf-mining moth Phyllonorycter blancardella (Le...

in june 2011necessity set up of energy exchange proved. gather separate applications for setting up exchange of oil, electricity with not long history and during numerous steps and different enactment of provisions, by exchange supreme council .and early of june of 2012 start itself act. the activity that realized with delay in iran duet. presence great resources of oil, gas and abundance advan...

the excess accumulation of water in lung interstitial or alveolar is called pulmonary edema which is caused by factors that upset the normal starling balance in micro-circulation. pulmonary edema disturbs the alveolar gas exchanges which are normally regulated by the respiratory system. mathematical modelling of pulmonary edema may help to predict the lung conditions and the mechanisms involved...

Negative social exchanges have been more reliably related to psychological health than have positive social exchanges. Little research, however, has sought to understand how underlying appraisal processes link such exchanges to psychological health. This study examined the frequencies of occurrence and appraisals of four parallel domains of positive and negative exchanges in relation to positiv...

This paper focuses on the pricing of guarantees for principal-protected funds under the constant proportion portfolio insurance (CPPI) strategy and investigates how the CPPI parameters may affect guarantee prices. In addition, it assesses the fairness of the guarantee fees charged to the current principal-protected funds in China. Our research indicates that some of the funds are charged higher...