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| 1 | Identificationof connection units with high GHG emissions forlow-carbon product structure design 显示文摘 | ZHANG X F ZHANG SY HUZY* | 2012 | Journal ofCleaner Production2012，27，： | 1 |
| 2 | Viscous pressure forming (VPF):State-of-the-art and future trends显示文摘 | WANG Z J LIU J G WANG XY HUZY GUO B | 2004 | Journal of Materials Processing Technology2004，151，13： | 1 |
| 3 | Research situation of 1appaconitine[J]显示文摘 | XINRH CHENGFS HUZY etal | 2009 | 中兽医医药杂志2009，28，2： | 1 |
| 4 | Studies on the Seizure of Rudder on the Flight Safety of an Aircraft显示文摘The demands of aircraft quality design criterion on main control system failure and subsequently instantaneous response were analyzed.According to the simulation,the flight characteristics of an aircraft were studied in different angle of rudder seizure.It demonstrated that when rudder seizure with high angle and pilot could not take action immediately,the flight parameters would change sharply.The yaw angle increased 50 degrees in 5 minutes,side velocity could attain 40 meters per-second,the angle of attack and sideslip would surpass 30 degrees,roll rate would reach -20 degrees per second,side load would arrive 0.6g.Simultaneity the angle of attack exceeded the limited angle,the aircraft would stall.If control wasn't working,the disaster would happen.These phenomena supply the sufficient information of the rudder malfunction. The validity of correcting yaw moment by asymmetry thrust was testified,the simulation results showed that even rudder seizure in most serious conditions,adopting asymmetry thrust can correct yaw moment caused by the rudder seizure.The judgment standards of flight safety level for the state of malfunction were given.The safety level was assessed caused by the rudder seizure.For an aircraft with two engines on one side,the pilots need to adjust the 4 engines to balance the asymmetric moment,the work load is increased enormously.According the flight safety standards,the safety level is level Ⅲ. | GENG Jianzhong WU Huzi DUAN Zhuoyi | 2013 | 系统仿真技术2013，9，2： | 0 |
| 5 | Influence of combination forms of intact sub-layer and tectonically deformed sub-layer of coal on the gas drainage performance of boreholes: a numerical study显示文摘High concentration and large flow flux of gas drainage from underground coal seams is the precondition of reducing emission and large-scale use of gas.However,the layered occurrence of coal seams with tectonically deformed sub-layers and intact sub-layers makes it difficult to effectively drain gas through commonly designed boreholes.In this study,the gas drainage performance in coal seams with different combinations of tectonically deformed sub-layers and intact sub-layers was numerically analyzed.The analysis results show that the gas drainage curve changes from a single-stage line to a dual-stage curve as the permeability ratios of Zone II(kII)and Zone I(kI)increase,raising the difficulty in gas drainage.Furthermore,a dual-system pressure decay model based on the first-order kinetic model was developed to describe the dual-stage characteristics of pressure decay curves with different permeability ratios.In the end,the simulation results were verified with reference to in-situ drainage data from literature.The research results are helpful for mines,especially those with layered coal seams comprising tectonically deformed sub-layers and intact sub-layers,to choose appropriate gas drainage methods and develop the original drainage designs for achieving better gas drainage performance. | Wei Zhao Kai Wang Rong Zhang Huzi Dong Zhen Lou Fenghua An | 2020 | International Journal of Coal Science & Technology2020，7，3： | 0 |
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