PECULIARITIES OF MASS-EXCHANGE PROCESSES IN ANAEROBIC GAS-LIQUID MEDIA

Liquid-to-Gas Mass Transfer in Anaerobic Processes: Inevitable Transfer Limitations of Methane and Hydrogen in the Biomethanation Process.

Liquid-to-gas mass transfer in anaerobic processes was investigated theoretically and experimentally. By using the classical definition of k(L)a, the global volumetric mass transfer coefficient, theoretical development of mass balances in such processes demonstrates that the mass transfer of highly soluble gases is not limited in the usual conditions occurring in anaerobic fermentors (low-inten...

Use of Gas-liquid Chromatography in Identification of Anaerobic Infections

The selective action of metronidazole against anaerobes is explained by the fact that activation requires reduction of the nitro group and aerobes and facultative anaerobes do not have enzymes which can produce a low enough redox potential to do this. The important enzymes are those involved in ketoacid metabolism (e.g. those required for oxidative decarboxylation of pyruvate). In anaerobes the...

analyzing power relations in political tv interviews in english mass media

چکیده زبان سیستم کاملی ازقوانین است که برای ایجاد ارتباط و تبادل معانی مورد استفاده قرار می گیرد که در رابطه تنگاتنگ با روابط قدرتی افراد می باشد. این رابطه و قدرت افراد می تواند مستقیما در انتخاب ضمایر و سایر ساختارهای زبانی حتی در رفتار افراد تاثیرگذار باشد. در هرجامعه ای ، تقریبا نوعی روابط قدرتی درمیان افراد موجود می باشد و این رابطه درنحوه ی استفاده ی آنها در زبان منعکس می شود. بررسی ای...

Surface gas-exchange processes of snow algae.

The red-colored chlorophyte Chlamydomonas nivalis is commonly found in summer snowfields. We used a modified Li-Cor gas-exchange system to investigate surface gas-exchange characteristics of snow colonized by this alga, finding rates of CO(2) uptake up to 0.3 micromol.m(-2).s(-1) in dense algal blooms. Experiments varying the irradiance resulted in light curves that resembled those of the leave...

experimental investigation of power consumption, mass transfer coefficient and flow regime in gas-liquid dispersion systems