نتایج جستجو برای: barrels
تعداد نتایج: 1113 فیلتر نتایج به سال:
The traditional production of wine vinegar is a lengthy process with little or no microbiological control. The aim of this study was to shorten the acetification process via three different strategies: changes in wood type; barrel shape; and the inoculation of an Acetobacter pasteurianus pure culture. The barrel shape was modified by constructing two prototypes with higher liquid-air interface....
Synthetic multifunctional pores: deletion and inversion of anion/cation selectivity using pM and pH.
We report the characterization of multifunctional rigid-rod beta-barrel ion channels with either internal aspartates or arginine-histidine dyads by planar bilayer conductance experiments. Barrels with internal aspartates form cation selective, large, unstable and ohmic barrel-stave (rather than toroidal) pores; addition of magnesium cations nearly deletes cation selectivity and increases single...
Mature, synrift lacustrine shales of Eocene to Oligocene age and mature, late-rift coals and coaly shales of Oligocene to Miocene age are source rocks for oil and gas in two important petroleum systems of the onshore and offshore areas of the Northwest Java Basin. Biogenic gas and carbonate-sourced gas have also been identified. These hydrocarbons are trapped primarily in anticlines and fault b...
Technical and economic evaluations in an oil field means that by different technologies and correct planning, maximize the amount of extraction of hydrocarbons and minimize risks and costs. The current research includes technical evaluation and economic analysis on one of the undeveloped reservoirs in the southwest of Iran. The amount of recoverable hydrocarbon was estimated using the Monte Car...
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