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Li Q.,Xian University of Architecture and Technology | Yin J.,Xian University of Architecture and Technology | Bi Y.,Institute of Chemical Industry | Zhang R.,Xian University of Architecture and Technology | And 2 more authors.
World Information on Earthquake Engineering | Year: 2015

A herringbone curved bridge model was designed to carry out the multi-dimensional shaking table experiment and analyze the earthquake damage phenomenon and seismic response of the bridge structure under multi-dimensional earthquake input. The results show that: the bridge beam and pier are mainly dominated by bending crack failure mode, the vertical input is the main cause of cracks in midspan, pier cracks are mainly affected by the horizohtal input. Acceleration response in midspan mainly is affected by the vertical input, longitudinal acceleration response of pier top is not affected obviously by the vertical input. Vertical acceleration respons of pier would be reduced for vertical input, but would be increased for three-dimensional input. In regard to setting of expansion joint width of herringbone curved bridge, longitudinal earthquake input only need to be considered for straight beam, but two-dimensional horizontal direction input should be considered for curve beam. Relative displacement of two pier transverse on branch had less impact for vertical earthquake input. ©, 2015, Science and Technology Periodical Press. All right reserved. Source

Yang Z.,Huazhong University of Science and Technology | Zhang S.,Huazhong University of Science and Technology | Liu L.,Huazhong University of Science and Technology | Liu L.,Institute of Chemical Industry | And 4 more authors.
Bioresource Technology | Year: 2012

Despite its abundant supply, tobacco stem has not been exploited as an energy source in large scale. This study investigates the combustion behaviours of tobacco stem in a thermogravimetric analyser (TGA) and a pilot-scale fluidized bed (FB). Combustion characteristics, including ignition and burnout index, and combustion reaction kinetics were studied. Experiments in the FB investigated the effects of different operating conditions, such as primary air flow, secondary air flow and feeding rates, on the bed temperature profiles and combustion efficiency. Two kinds of bed materials cinder and silica sand were used in FB and the effect of bed materials on agglomeration was studied. The results indicated that tobacco stem combustion worked well in the FB. When operation condition was properly set, the tobacco stem combustion efficiency reached 94%. In addition, compared to silica sand, cinder could inhibit agglomeration during combustion because of its high aluminium content. © 2012. Source

Che R.,Kunming University of Science and Technology | Huang L.,Institute of Chemical Industry | Yu X.,Kunming University of Science and Technology
Bioresource Technology | Year: 2015

Effects of Fe3+ on the biomass production, lipid accumulation of Monoraphidium sp. FXY-10 were investigated. Further residual Fe3+ in the culture medium on the sedimentation efficiency have been also studied. The biomass and lipid productivity of microalgae exhibited an increasing tendency with the concentrations of iron ion augmenting. 150 μM iron ion added into the culture medium result in highest DCW at 1.42 g L-1 while the maximum lipid productivity of 10.71 mg L-1 d-1 were obtained at 50 μM. The results showed that appropriate concentrations of iron ion was beneficial for biomass production and lipid accumulation but higher concentration of that will be more in favor of the sedimentation efficiency of Monoraphidium sp. FXY-10. © 2015 Elsevier Ltd. All rights reserved. Source

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