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Benzene degradation in waste gas by photolysis and photolysis-ozonation： experiments and modeling

Frontiers of Environmental Science & Engineering 2016年第6期10卷 103-112页

作者： Fariba Mahmoudkhani Maryam Rezaei Vahid Asili Mahsasadat Atyabi elena vaisman Cooper H. Langford Alex De Visscher Department of Chemical and Petroleum Engineering Centre for Environmental Engineering Research and Education (CEERE) Schulich School of Engineering University of Calgary 2500 University Drive NW Calgary Alberta T2N 1N4 Canada Department of Chemistry Faculty of Science University of Calgary 2500 University Drive NW Calgary Alberta T2N 1N4 Canada Present address: Institute for Resources Environment and Sustainability University of British Columbia 2202 Main Hall Vancourer BC V6T 1Z4 Canada

The degradation of benzene, a carcinogenic air pollutant, was studied in a gas-phase photochemical reactor with an amalgam lamp emitting ultraviolet light at 185 and 254 nm. Efficient benzene degradation （〉70%） was possible for benzene mass flow rates of up to 1.5 ***1. Adding ozone allowed benzene mass flow rates of up to 5 m ***-1 tobe treated with the same efficiency. In terms of energy consumption, ozone doubles the efficiency of the process. A comprenenslve mecnanisnc simulation model was developed incorporating a chemical kinetics model （62 reactions involving 47 chemical species）, a material balance model incorporating diffusion and flow, a flow velocity model,and a light field model. The model successfully predicted the efficiency of the reactor, generally within 20%, which indicates that the model is sound, and can be used for feasibility studies. The prediction of the reactor efficiency in the presence of ozone was less successful, with systematically overestimated efficiency. Condensation of reaction products in the reactor is thought to be the mare cause of model inaccuracy. Both experimental .data and model predictions show that there is a synergistic effect between ozonation and ultraviolet degradation.

关键词： Photolysis OzoneBenzene Waste gas Simulation Synergism

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Effect of resistance training on non-alcoholic fatty-liver disease a randomized-clinical trial

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World Journal of Gastroenterology 2014年第15期20卷 4382-4392页

作者： Shira Zelber-Sagi Assaf Buch Hanny Yeshua Nahum vaisman Muriel Webb Gil Harari Ofer Kis Naomi Fliss-Isakov elena Izkhakov Zamir Halpern Erwin Santo Ran Oren Oren Shibolet Department of Gastroenterology Tel Aviv Medical Center6423906 Tel-AvivIsrael School of Public Health University of Haifa3498838 HaifaIsrael The Sackler Faculty of Medicine Tel-Aviv University6997801 Tel AvivIsrael Wingate Institute for Physical Education and Sport 4290200 NetanyaIsrael

AIM: To evaluate the effect of resistance training (RT) on non alcoholic liver disease (NAFLD) patients.

关键词： Resistance exercise Obesity Nutrition Physical activity Abdominal fat

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