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用于大型公共交通的热塑性复合夹芯板结构设计与制造
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作者 Haibin Ning Gregg M. Janowski +1 位作者 Uday K. Vaidya George Husman 《钢结构》 2008年第2期74-74,共1页
轻质运输工具可以提高燃料的燃烧效率、降低运行费用,在大型公共交通系统中更为明显。轻质复合材料,如玻璃纤维增强聚合物,被用来替代传统的钢材和铝合金。介绍了采用热塑性复合材料的大型公共汽车侧板的设计、分析研究和制造。设计了... 轻质运输工具可以提高燃料的燃烧效率、降低运行费用,在大型公共交通系统中更为明显。轻质复合材料,如玻璃纤维增强聚合物,被用来替代传统的钢材和铝合金。介绍了采用热塑性复合材料的大型公共汽车侧板的设计、分析研究和制造。设计了一种由E-玻璃纤维/聚丙烯表面覆盖和聚丙烯蜂窝核心构成的复合夹芯板,具有轻质,高强和良好的吸能性能。夹芯板的设计和分析采用Pro/E、Hy-permesh、ANSYS等软件进行。单一的膜结构用于制造玻璃纤维/聚丙烯表面覆盖,表面覆盖的微结构分析证明此过程可以保证很好的固结。表面覆盖与核心材料被牢固地结合起来并经过了模型测试。荷载达到11.7kN时由于粘结失效导致夹芯板破坏。夹芯板的静载能力已满足美国公共运输协会(AP-TA)的要求。与传统的铝面钢结构卡车相比,热塑性复合材料制造的夹芯板减轻了55%的重量。 展开更多
关键词 热塑性复合材料 夹芯板结构 玻璃纤维/聚 乙烯 大型交通系统 膜结构
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谈超大型城市公园及其交通系统规划 被引量:3
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作者 顾超 《上海建设科技》 2011年第2期24-27,共4页
近年来上海涌现出一批占地百公顷以上的超大型城市公园,如上海滨江森林公园(一期120hm2)、上海顾村公园(一、二期共434hm2)等。阐述了超大型城市公园这一新概念,通过分析超大型公园交通系统规划设计的重要性和独特性,论证了超大型城市... 近年来上海涌现出一批占地百公顷以上的超大型城市公园,如上海滨江森林公园(一期120hm2)、上海顾村公园(一、二期共434hm2)等。阐述了超大型城市公园这一新概念,通过分析超大型公园交通系统规划设计的重要性和独特性,论证了超大型城市公园的交通系统规划需要站在城市交通规划的高度去着手编制;公园的交通系统与城市交通系统相辅相成,两者在规划时需要统筹考虑。 展开更多
关键词 城市公园 大型城市公园 城市交通系统规划 大型城市公园交通系统规划
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Characteristics of blood glucose excursions in type 2 diabetes mellitus patients with three different Traditional Chinese Medicine syndromes 被引量:4
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作者 Zhang Hongyan Zhou Jian +3 位作者 Zhang Lei Ma Jianhui Sun Yongning Zhao Yuwu 《Journal of Traditional Chinese Medicine》 SCIE CAS CSCD 2015年第5期537-545,共9页
OBJECTIVE:To explore the characteristics of blood glucose excursions of type 2 diabetes mellitus patients with three different Traditional Chinese Medicine(TCM) syndromes.METHODS:One hundred and nine patients with typ... OBJECTIVE:To explore the characteristics of blood glucose excursions of type 2 diabetes mellitus patients with three different Traditional Chinese Medicine(TCM) syndromes.METHODS:One hundred and nine patients with type 2 diabetes mellitus were recruited from the Department of Endocrinology and the Department of TCM of the Sixth People's Hospital affiliated to Shanghai Jiao Tong University.Subjects were divided into three groups according to TCM syndrome:intrinsic Damp(n- 42),Yin deficiency and internal Heat(n = 25),and Qi and Yin deficiency(n- 42).Subcutaneous interstitial glucose was monitored with a continuous glucose monitoring system for 3consecutive days to investigate the glycemic profile in each group.Plasma C-peptide levels were measured,and an arginine test was taken in 10 patients randomly selected from each group.Glucose data and glycemic variability were analyzed to investigate the differences among the groups.The change in C-peptide levels and the results from arginine trial were used to evaluate β cell function.RESULTS:Indicators reflecting blood glucose level were the highest in subjects with Yin deficiency and internal Heat syndrome,and parameters reflecting glycemic variability were the lowest in those with Qi and Yin deficiency syndrome.The change in C-peptide levels showed that subjects with Qi and Yin deficiency syndrome had the best βcell function among the three groups;this was confirmed by the arginine trial.CONCLUSION:Patients with Qi and Yin deficiency syndrome had a more stable blood glucose profile,as glycemic variability was higher in those with intrinsic Damp syndrome and those with Yin deficiency and internal Heat syndrome. 展开更多
关键词 Blood glucose excursions Glycemic variability Symptom complex Diabetes mellitus type 2
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