摘要：The vacuum plume effects experimental system （PES） is the first experimental system designed to study the effects of vacuum plume in China. The main equipment, a vacuum chamber of 5.5 m in diameter and 12.8 m in length, and structure design of hinged door are described. The finite element method （FEM） is adopted to analyze the static strength and stability of the PES vacuum chamber. It is demonstrated that the static strength and stability are qualified. For the 5.5 m diameter vacuum chamber door, three design schemes are put forward. After comparisons are made, the single-axis-double-pin hinged door is selected. The FEM is applied to checking its static strength as well as distortions. The results show that the door’s distortion and displacement change mainly due to the gravity of the door which leads to its sinking. The calculated displacement is less than 7.8 mm, while the actual measurement is 5 mm. The single-axis-double-pin hinged door mechanism completely satisfies the design requirements. This innovative structure can be introduced as a reference for the design of large-scale hinged doors.

摘要：以Excel 2003为平台,利用VBA程序建立数字胃肠道模型(DIM)。通过Ussing chamber大鼠肠吸收试验,研究不同肠段、不同pH、有无辅料存在条件下硝苯地平的吸收特性,获得DIM模型的输入层参数。再利用DIM模型预测硝苯地平缓释制剂人体的血药浓度-时间曲线并进行参数敏感性分析,找寻影响硝苯地平缓释制剂吸收的关键参数,为硝苯地平缓释制剂的处方设计提供参考和依据。实验结果表明,硝苯地平在大鼠十二指肠、空肠、回肠、结肠的表观通透系数(Papp)均大于1.0×10-6cm/s。辅料能显著增高硝苯地平的Papp,而在大鼠同一肠段不同pH对硝苯地平的Papp差异无统计学意义。硝苯地平在大鼠各肠段吸收良好,未见明显吸收窗现象。DIM模型参数敏感性分析表明,吸收速率的变化对硝苯地平的血药浓度-时间曲线影响不大,吸收速率不是硝苯地平吸收的限速步骤,溶出速率和小肠迁移时间才是影响硝苯地平吸收的关键因素。DIM模型可以为硝苯地平缓释制剂的处方设计提供依据。

摘要：Thermal management of microelectronics demands higher heat flux removal capabilities due to the rapid increase in component and heat flux densities generated by integrated circuits (ICs). Electrospray evaporative cooling (ESEC) is a potential package-level thermal management solution for the next generation of microelectronics. In this paper, a design methodology is presented using numerical electrostatic field modeling to indirectly design proof-of-concept, micronozzle-based ESEC chambers. The results of the numerical modeling and heat transfer experiments indicate that the potential distribution near the micronozzle tip of the ESEC chamber dominates the heat transfer performance of ESEC cooling devices. The surface charge density at the micronozzle tips has a minor impact on the heat transfer performance. The maximum enhancement ratio of 1.87 was achieved by the 8-nozzle ESEC chamber at the lowest heat flux investigated, indicating that the heat transfer capability of ESEC chambers declines as the heat source density increases. The study demonstrates that increasing the number of micronozzles and decreasing the flow rate per nozzle may not effectively improve the heat transfer performance of ESEC devices.

摘要：金奖/Gold Award Winner作品名称:选送单位:Euro RSCG Zurich/Eurad AG广告主:zurich chamber orchestr(a苏黎世室内乐团)点评:当你看到该组作品,也许会感觉不太舒服。但是。