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学者姓名:雷芳
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Abstract :
In order to investigate the effects of reactive rejuvenation strategies on volatile organic compounds (VOCs) emissions and the performance of aged SBS modified bitumen (SMB), gas chromatography-mass spectrometry test, physical property tests, and rheological property tests were utilized to evaluate the effectiveness of bio-oil, the epoxy-based rejuvenator, the isocyanate-based rejuvenator and the composite reactive rejuvenator. A multicriteria evaluation model integrating rejuvenation effectiveness, environmental impact, and health risk was then applied to identify the optimal reactive rejuvenator. Results show that all rejuvenators increase the VOCs emission concentration and the proportion of oxygenated volatile organic compounds (OVOCs), along with varying degrees of elevation in ozone formation potential, secondary organic aerosol formation potential, carcinogenic risk, and hazard index. Bio-oil has limited rejuvenation effectiveness and holds the lowest overall ranking. The epoxy-based rejuvenator provides rejuvenated SMB with numerous flexible chain segments that exhibit considerable rotational freedom, which contributes to improved low temperature cracking resistance. However, it poses the highest environmental and health risks. The isocyanate-based rejuvenator imparts rigid molecular structures that enhance the deformation resistance of rejuvenated SMB, albeit at the expense of reduced flexibility. The composite reactive rejuvenator exhibits superior rejuvenation effectiveness with the lowest environmental and health impacts.
Keyword :
Comprehensive evaluation Comprehensive evaluation Performance analysis Performance analysis Reactive rejuvenation Reactive rejuvenation SBS modified bitumen SBS modified bitumen Volatile organic compounds emission Volatile organic compounds emission
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GB/T 7714 | Xu, Song , Niu, Xiangjie , Luo, Yuyang et al. Comparative analysis of reactive rejuvenation strategies for aged SBS modified bitumen: insights from volatile organic compounds emission characteristics and performance evaluation [J]. | JOURNAL OF HAZARDOUS MATERIALS , 2025 , 498 . |
MLA | Xu, Song et al. "Comparative analysis of reactive rejuvenation strategies for aged SBS modified bitumen: insights from volatile organic compounds emission characteristics and performance evaluation" . | JOURNAL OF HAZARDOUS MATERIALS 498 (2025) . |
APA | Xu, Song , Niu, Xiangjie , Luo, Yuyang , Cai, Shaoxu , Yang, Shuai , Fang, Lei et al. Comparative analysis of reactive rejuvenation strategies for aged SBS modified bitumen: insights from volatile organic compounds emission characteristics and performance evaluation . | JOURNAL OF HAZARDOUS MATERIALS , 2025 , 498 . |
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在光环境下,传统和现代曲面建筑的光影效果不仅能体现出艺术的美感,同时也涉及到建筑主动适应自然充分利用光源减少能耗等问题.通过分析具有代表性的曲面建筑的光影特征,比较传统建筑设计理念及现代建筑设计技术的不同,阐述了折中合理的设计思路更符合建筑可持续发展的需求.
Keyword :
建筑形态 建筑形态 曲面阴影 曲面阴影 综合分析 综合分析 适应性 适应性
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GB/T 7714 | 雷芳 . 光环境下传统与现代曲面建筑形态的折中思考 [J]. | 福建建筑 , 2010 , (6) : 22-24 . |
MLA | 雷芳 . "光环境下传统与现代曲面建筑形态的折中思考" . | 福建建筑 6 (2010) : 22-24 . |
APA | 雷芳 . 光环境下传统与现代曲面建筑形态的折中思考 . | 福建建筑 , 2010 , (6) , 22-24 . |
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最大斜度线在工程图学中较少研究,其几何定义与作图过程晦涩抽象,但其在建筑设计与工程制图中应用频率很高.对其进行更为确切的定义分析、空间探讨,辅以工程实例的推演及三维可视化表现,有助于深化概念、拓展视野,从而也增强了基础图学理论与后续专业知识的有效衔接.
Keyword :
工程图学 工程图学 工程应用 工程应用 最大斜度线 最大斜度线 综合分析 综合分析
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GB/T 7714 | 雷芳 . 最大斜度线在图学理论中的合理诠释及应用研究 [J]. | 工程图学学报 , 2010 , 31 (6) : 7-11 . |
MLA | 雷芳 . "最大斜度线在图学理论中的合理诠释及应用研究" . | 工程图学学报 31 . 6 (2010) : 7-11 . |
APA | 雷芳 . 最大斜度线在图学理论中的合理诠释及应用研究 . | 工程图学学报 , 2010 , 31 (6) , 7-11 . |
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闽东地处江南与岭南两大园林体系之间,在实地调研和文献分析基础上,分析闽东私家庭园布局与空间特色,探讨闽东古典园林布局与空间的主从关系,园林空间的内向特征、渗透与层次变化等问题,加深了对闽东古典园林地域特征的了解.
Keyword :
古典园林 古典园林 布局 布局 空间组织 空间组织 闽东 闽东
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GB/T 7714 | 雷芳 . 闽东古典园林布局及空间组织 [J]. | 福建建筑 , 2009 , (2) : 26-28,31 . |
MLA | 雷芳 . "闽东古典园林布局及空间组织" . | 福建建筑 2 (2009) : 26-28,31 . |
APA | 雷芳 . 闽东古典园林布局及空间组织 . | 福建建筑 , 2009 , (2) , 26-28,31 . |
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闽东地处江南与岭南之间,历史上的三次大规模人口迁徙和近代通商开埠,造就了闽东具有本土区域特点的园林文化及园林建筑.该文对闽东古典园林的发展脉络进行了梳理,阐述了其历代园林规模、类型及总体特征.
Keyword :
历史沿革 历史沿革 古典园林 古典园林 闽东 闽东
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GB/T 7714 | 雷芳 , 朱永春 . 闽东古典园林发展史略 [J]. | 华中建筑 , 2009 , 27 (7) : 152-156 . |
MLA | 雷芳 et al. "闽东古典园林发展史略" . | 华中建筑 27 . 7 (2009) : 152-156 . |
APA | 雷芳 , 朱永春 . 闽东古典园林发展史略 . | 华中建筑 , 2009 , 27 (7) , 152-156 . |
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尾水管是水工建筑物中比较复杂的空间曲面之一,采用计算机辅助设计软件AutoCAD及造型软件3DS MAX对尾水管进行拟实建模及形态分析,加深了人们对其复杂结构、曲面类型、工作原理的理解,提升了尾水管制图的精度,降低了设计难度.研究中所积累的技术与方法能够促进计算机拟实技术的发展,为更多水工曲面的研究提供借鉴,也可为其他领域的设计工作提供帮助.
Keyword :
几何建模与形态分析 几何建模与形态分析 尾水管 尾水管 计算机应用 计算机应用 计算机拟实造型技术 计算机拟实造型技术
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GB/T 7714 | 雷芳 . 水工复杂曲面尾水管的几何建模与形态分析 [J]. | 工程图学学报 , 2006 , 27 (3) : 7-11 . |
MLA | 雷芳 . "水工复杂曲面尾水管的几何建模与形态分析" . | 工程图学学报 27 . 3 (2006) : 7-11 . |
APA | 雷芳 . 水工复杂曲面尾水管的几何建模与形态分析 . | 工程图学学报 , 2006 , 27 (3) , 7-11 . |
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