摘要：Carbon nanotubes(CNTs) have received broad attention in the past decades due to their excellent physical and chemical properties and thus been regarded as a powerful candidate for future star-materials. Although various CNT products and their related applications have been demonstrated recently, their performance can hardly meet the researchers’ expectations compared with their theoretical properties. The current predicament is caused by the immature synthesis method, including the basic science and the producing technology. As the synthesis with controlled structures determines its future, this review summarizes the progress on the basic research and industrialization of CNTs in the past decades, including the fine structure control, aggregation status design and scale-up production, and further points out the way for the future development of CNTs combining with specific applications.

摘要：广阳岛生态修复综合示范地是全岛谋划、策划、规划完成后,在计划实施阶段选取的综合样板实验区。按照最优价值生命共同体理论要求,在摸清三大本底的基础上,完成理念理论落地的先行示范、“四划协同”绿色规划示范、“三步十法”绿色设计示范、“二三四八”绿色建设示范、技术产品材料工法的先行示范和最优价值生命共同体的场景示范,再现原生态的巴渝乡村田园风景,实现人与自然和谐共生。

摘要：室内外一体化导航是目前的研究热点,相对于较为成熟的室外导航技术,室内定位技术相对滞后,因此无法满足现实生活中日益增长的室内外一体化导航需求。对于日新月异的智能机器人或无人机技术,传统的以二维图为基础的导航路径规划无法满足其对室内外精确导航的需求。因此,如何快速有效地实现室内外一体化三维导航路径规划成为迫切需要解决的问题。本文基于CityEngine和SketchUp三维设计平台,以北京建筑大学为例,利用校园遥感影像数据,建筑属性数据及学院楼建筑平面图,实现了数字校园室内外精细三维建模,并在此基础上,利用Arc GIS建模工具对校园室内外三维导航路径网络进行提取与规划,为智能机器人或无人机室内外一体化智能导航提供了技术支持。

摘要：为推进长江下游地区页岩油气等清洁能源调查工作,2015-2021年中国地质调查局在安徽地区部署了25口页岩气井。针对勘探区域地质构造复杂、软硬互层、断层裂隙发育以及地层破碎等地质条件引起的恶性漏失、难钻进、难取心、井壁失稳等钻井复杂情况,通过制定针对性堵漏方案,优选多种类钻头,优化钻具组合、钻井液配置和钻井工艺,初步形成了长江下游(安徽)地区页岩气钻井技术体系,包括:破碎带高效高质取心工艺、软硬互层纠斜控斜钻具组合研究、强研磨性硬地层钻头优选、恶性漏失卡钻处理方法、水平井段钻井液堵漏技术以及水敏地层井壁稳定处理等。为该区后续钻井工程设计和施工作业提供有益借鉴。