摘要：How to control the dipole orientation of organic emitters is a challenge in the field of organic light-emitting diodes(OLEDs).Herein,a linear thermally activated delayed fluorescence(TADF)molecule,PhNAI-PMSBA,bearing a 1,8-naphthalimide-acridine framework was designed by a doublesite long-axis extension strategy to actively control the dipole *** horizontal ratio of emitting dipole orientation of PhNAI-PMSBA reaches 95%,substantially higher than that of isotropic emitters(67%).This unique feature is associated with the intrinsically horizontal molecular orientation of PhNAI-PMSBA and the good agreement between its transition dipole moment direction and molecular long *** PhNAI-PMSBA-based OLED achieves an ultrahigh optical outcoupling efficiency of 43.2%and thus affords one of the highest red electroluminescence with an external quantum efficiency of 22.3%and the Commission International de l’Eclairage 1931 coordinates at around(0.60,0.40).

摘要：滤材截留粒状物中因采集气流常造成固相PAHs有吹出现象,低估微粒中PAHs浓度值,影响其对人体健康风险评估的正确性.实验藉由自行设计滤纸吹出实验(Blow-off)装置,以7种PAHs同位素建立悬浮微粒中PAHs化合物吹出比值(Blow-off,θ),并解析不同流速(20～60 cm/s)及温度(25～45℃)条件对固相PAHs吹出比值(θ)影响.实验结果显示少环PAHs化合物(如NaP,AcP)吹出比值明显较多环PAHs物质(如F1,Pyr)为大,随表面流速上升其吹出现象有增加趋势.少环PAHs化合物较易吹出但受温度影响较少(随温度上升θ增加仅约4%～17%);多环PAHs化合物吹出比值较低但随温度升高(25→45℃)吹出比值明显倍增(15%～34%增至32%～58%).

摘要：雪山隧道自1991年导坑动工以来,施工中所遭遇的地下水问题,即不时困扰工程人员,为深入了解营运中之地下水状况,并评估对环境之冲击,工程团队乃持续针对雪山隧道全段(含两个主坑及一个导坑)进行地下水监测与分析,其目的即为确保其结构安全并厘清对环境的影响,以期能适时化解大众的疑虑。作者先从雪山隧道地下水量与水压监测系统之建置经过加以说明,并介绍相关设备之规格性能与配置,接着针对通车至今所搜集之监测数据加以整理、分析与判读,从隧道设计的理念出发,探讨地下水与隧道安全之互制关系及其与周遭环境间之关联性,最后归纳至今所得之变化趋势,并推估未来可能的演变,期能防患未然,确保雪山隧道之永续营运。