摘要：介绍了＂任务驱动＂教学模式的内涵及模式特点和结构,并具体讨论了任务设计的原则和策略。

摘要：A combined system including a solid oxide fuel cell(SOFC)and an internal combustion engine(ICE)is proposed in this ***,a 0-D model of SOFC and a 1-D model of ICE are built as agent ***,parameter analysis of the system is conducted based on SOFC and ICE *** show that the number of cells,current density,and fuel utilization can influence SOFC and ***,a deep neural network is applied as a data-driven model to conduct optimized calculations efficiently,as achieved by the particle swarm optimization algorithm in this *** results demonstrate that the optimal system efficiency of 51.8%can be achieved from a 22.4%/77.6%SOFC-ICE power split at 6000 kW power ***,promising improvements in efficiency of 5.1%are achieved compared to the original ***,a simple economic analysis model,which shows that the payback period of the optimal system is 8.41 years,is proposed in this paper.

摘要：介绍了６０ｔ／ｈ增压流化床锅炉压力壳的设计结构、锅炉本体的悬吊方法、壳体上局部载荷区的加强、有限元应力计算以及制造工艺特点。

摘要：【目的】研究玉米秸秆液化及树脂化的工艺条件,进而提高玉米秸秆资源的利用价值及开辟玉米秸秆利用的新途径。【方法】以苯酚为液化剂、磷酸为催化剂对玉米秸秆进行液化,通过单因素试验和正交试验确定玉米秸秆液化的最优工艺;然后对液化产物进行树脂化,利用单因素试验确定树脂化工艺。【结果】玉米秸秆液化的最优工艺条件:液化温度150℃、液化时间165 min、固液比3∶13、磷酸用量10%,该液化工艺条件下,玉米秸秆液化残渣率为12.1%;树脂化工艺条件:甲醛与液化产物摩尔比1.8、NaOH与液化产物摩尔比0.35、树脂化合成温度85℃、保温时间40 min、水与液化产物摩尔比8.0,该工艺条件下可生产获得综合性能较好的玉米秸秆液化物树脂,用其压制的胶合板干状强度1.788 MPa、湿状强度0.812 MPa,胶合强度符合国家标准(GB/T 17657-1999)对Ⅰ类胶合板的要求(≥0.700 MPa)。【结论】以玉米秸秆液化产物制备的酚醛树脂胶黏剂可用于木材加工。