A comparison of the adsorption efficiencies for Ar atoms on large (N2)m (m = 1320−10600) clusters and N2 molecules on large (Ar)n (n = 7900−17000) clusters has been investigated by the pick-up technique. Using mass spectroscopy, it has been shown that mixed (Ar)n(N2)m clusters can be created either by depositing Ar atoms from buffer gas on the surface of (N2)m clusters or by depositing N2 molec...

Simple and economical measurement of air change rates can be achieved with a passive-type tracer gas doser and sampler. However, this is made more complex by the fact many buildings are not a single fully mixed zone. This means many measurements are required to obtain information on ventilation conditions. In this study, we evaluated the uncertainty of tracer gas measurement of air change rate ...

For continuous systems with polytopic uncertainties, the mixed H2/H1 robust output control problem is considered in this paper. The design objective is to seek a static output feedback controller that is able to stabilize the uncertain system and to minimize the mixed H2/H1 norm. To this end, a hybrid algorithm mixed by the technique of Hurwitz testing matrix of family of polynomial, average pe...

We compare multinomial logit and mixed logit models for data on California households’ revealed and stated preferences for automobiles. The stated preference data elicited households’ preferences among gas, electric, methanol, and CNG vehicles with various attributes. The mixed logit models provide a much better fit to these data, and forecasting exercises demonstrate substantial differences be...

ABsTRAcr The conditions under which the partial pressure of a solvent in the alveolar gas is likely to provide a valid index of its partial pressure in the mixed venous blood, and thus of whole-body exposure, is explored on a theoretical basis. Under steady-state conditions, providing the solvent's blood/gas partition coefficient exceeds 10, its mixed venous and alveolar pressures will agree wi...

SF6 and SF6-N2 mixed gases are used widely as insulators, but such gases have high greenhouse gas potential. The separation of SF6 from SF6-N2 mixed gases is an inevitable result of their use. Single-walled carbon nanohorns (CNHs) were used here for a fundamental study of the separation of SF6 and N2. The diameters of the interstitial and internal nanopores of the CNHs were 0.7 and 2.9 nm, resp...