Separation of olefin/paraffin is an energy-intensive and difficult separation process in petrochemical industry. Energy-efficient adsorption process is considered as a promising alternative to the traditional cryogenic distillation for separating olefin/paraffin mixtures. In this work, we explored the feasibility of adsorptive separation of olefin/paraffin mixtures using a magnesium-based metal...

When early-season avocado fruit (Persea americana Mill. cv Hass) were treated with ethylene or propylene for 24 hours immediately on picking, the time to the onset of the respiratory climacteric, i.e. the lag period, remained unchanged compared with that in untreated fruit. When fruit were pulsed 24 hours after picking, on the other hand, the lag period was shortened. In both cases, however, a ...

The drying of hydrogel films formed by poly(ethylene oxide)-poly(propylene oxide) (PEO-PPO) block copolymers (Pluronic P105 and Pluronic L64) is investigated at various air relative humidity (RH) conditions in the range 11-94%. These amphiphilic block copolymers self-assemble to form a variety of ordered (lyotropic liquid crystalline) structures as the water content decreases. The amount of wat...

G. Consolati, F. Quasso, R. Gallo and F. Severini Dipartimento di Fisica and INFM, Politecnico di Milano Piazza Leonardo da Vinci, 32, 20133 Milano, Italy Dipartimento di Chimica Industriale e Ingegneria dei Materiali Universitá di Messina Salita Sperone, 98166 S. Agata di Messina, Italy Dipartimento di Chimica, Materiali e Ingegneria Chimica “G. Natta” Politecnico di Milano Piazza Leonardo da ...

Gaston, Lamont W. (National Heart Institute, National Institutes of Health, Bethesda, Md.) and E. R. Stadtman. Fermentation of ethylene glycol by Clostridium glycolicum, sp. n. J. Bacteriol. 85:356-362. 1963.-An anaerobic organism which utilizes ethylene glycol as a source of energy and carbon has been isolated from mud. It is a long (5 mu), slender, motile, gram-positive, spore-forming rod, wi...

Pluronic block copolymer P85 was shown to inhibit the P-glycoprotein (Pgp) drug efflux system and to increase the permeability of a broad spectrum of drugs in the blood-brain barrier (BBB). However, there is an entire series of Pluronics varying in lengths of propylene oxide and ethylene oxide and overall lipophilicity. This study identifies those structural characteristics of Pluronics require...