AIM: To determine the dose-related effects of a novel probiotic combination, I.31, on irritable bowel syndrome (IBS)-related quality of life (IBS-QoL).
A comparative analytical study of several control strategies for semi-active(SA) devices installed in baseisolated buildings aiming to reduce earthquake induced vibrations is presented.Three force tracking schemes com...A comparative analytical study of several control strategies for semi-active(SA) devices installed in baseisolated buildings aiming to reduce earthquake induced vibrations is presented.Three force tracking schemes comprising a linear controller plus a 'clipped' algorithm and a nonlinear output feedback controller(NOFC) are considered to tackle this problem.Linear controllers include the integral controller(I),the linear quadratic regulator(LQR) and the model predictive controller(MPC).A single degree-of-freedom system subjected to input accelerograms representative of the Portuguese seismic actions are first used to validate and evaluate the feasibility of these strategies.The obtained results show that structural systems using SA devices can in general outperform those equipped with passive devices for lower fundamental frequency structural systems,namely base-isolated buildings.The effectiveness of the proposed strategies is also evaluated on a 10 storey base-isolated dual frame-wall building.The force tracking scheme with an integral controller outperforms the other three as well as the original structure and the structure equipped with passive devices.展开更多
China’s Known Copper and Zinc Reserves Decreased Based on a recent report released by the Ministry of Land Resources in 2005, China’s natural reserves of chromium, copper, zinc, phosphate and potassium are decreasin...China’s Known Copper and Zinc Reserves Decreased Based on a recent report released by the Ministry of Land Resources in 2005, China’s natural reserves of chromium, copper, zinc, phosphate and potassium are decreasing, leading to large imports of the related products. The geological prospecting work found some increased展开更多
The dawn of August 8th, 2008 will witness thegr and opening ceremony of the 29th Olympics in Beijing. The world’s most prestigious mega sporting event where athletes & delegations from
基金Supported by Spanish Ministry of Health,Instituto de Salud CarlosⅢ(in part),No.PI10/02135
文摘AIM: To determine the dose-related effects of a novel probiotic combination, I.31, on irritable bowel syndrome (IBS)-related quality of life (IBS-QoL).
基金The Portuguese Foundation for Science and Technology(FCT)for the Ph D scholarship provided(reference SFRH/BD/84769/2012)
文摘A comparative analytical study of several control strategies for semi-active(SA) devices installed in baseisolated buildings aiming to reduce earthquake induced vibrations is presented.Three force tracking schemes comprising a linear controller plus a 'clipped' algorithm and a nonlinear output feedback controller(NOFC) are considered to tackle this problem.Linear controllers include the integral controller(I),the linear quadratic regulator(LQR) and the model predictive controller(MPC).A single degree-of-freedom system subjected to input accelerograms representative of the Portuguese seismic actions are first used to validate and evaluate the feasibility of these strategies.The obtained results show that structural systems using SA devices can in general outperform those equipped with passive devices for lower fundamental frequency structural systems,namely base-isolated buildings.The effectiveness of the proposed strategies is also evaluated on a 10 storey base-isolated dual frame-wall building.The force tracking scheme with an integral controller outperforms the other three as well as the original structure and the structure equipped with passive devices.
文摘China’s Known Copper and Zinc Reserves Decreased Based on a recent report released by the Ministry of Land Resources in 2005, China’s natural reserves of chromium, copper, zinc, phosphate and potassium are decreasing, leading to large imports of the related products. The geological prospecting work found some increased
文摘The dawn of August 8th, 2008 will witness thegr and opening ceremony of the 29th Olympics in Beijing. The world’s most prestigious mega sporting event where athletes & delegations from
