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Permeation and separation properties of polyimide membranes to olefins and paraffins
Pure and mixed gas permeation experiments for olefins and paraffins of C2 and C3 were carried out for several polyimide and other polymer membranes at pressures up to 8 atm and temperatures from 308Expand
Anaerobic degradation of tetramethylammonium by a newly isolated marine methanogen
Strain NaT1 was a mesophilic marine methanogen that degraded tetramethylammonium to methane and ammonium stoichiometrically and was identified as a member of the family Methanosarcinaceae. Expand
Adult eclosion timing of the onion fly, Delia antiqua, in response to daily cycles of temperature at different soil depths
The onion fly, Delia antiqua, is able to compensate for the depth-dependent phase delay of the Zeitgeber by advancing the eclosion timing in response to the amplitude of the temperature cycle decreasing with depth. Expand
Interacting effect of thermoperiod and photoperiod on the eclosion rhythm in the onion fly, Delia antiqua supports the two-oscillator model.
The observed interacting effect of light and temperature cycle on the eclosion rhythm in D. antiqua can be explained by the two-oscillator model proposed by Pittendrigh and Bruce (1959). Expand
Gas permeation properties of poly(ether imide) segmented copolymers
Poly(ether imide) segmented copolymers were prepared from polyether-diamine and comonomer diamine with acid anhydride. They have microphase-separated structures consisting of microdomains of rubberyExpand
NaY zeolite membrane for the pervaporation separation of methanol–methyl tert-butyl ether mixtures
NaY zeolite membrane grown hydrothermally on the surface of a porous alumina substrate shows a high alcohol selectivity in pervaporation, a membrane-based liquid separation process, ofExpand
The Characteristics of OSL Signal from Quartz Grains Extracted from Modern Sediments in Japan
The Characteristics of OSL Signal from Quartz Grains Extracted from Modern Sediments in Japan Quartz grains from sediments in Japan are derived from complex mixtures of sources, including volcanic,Expand