摘要：Photocatalytic oxidative organic reactions are important synthetic transformations,and research on reaction selectivity by reactive oxygen species(ROS)is *** date,however,there has rarely been any focus on the directed generation of ***,we report the first identification of tunable molecular oxygen activation induced by polymeric conjugation in nonmetallic conjugated microporous polymers(CMP).The conjugation between these can be achieved by the introduction of alkynyl ***-A with an alkynyl bridge facilitates the intramolecular charge mobility while CMP-D,lacking an alkynyl group enhances the photoexcited carrier build-up on the surface from *** different processes dominate the directed ROS generation of the superoxide radical(·O_(2)^(-))and singlet oxygen(^(1)O_(2)),*** theory is substantiated by the different performances of these CMPs in the aerobic oxidation of sulfides and the dehydrogenative coupling of amines,and could provide insight into the rational design of CMPs for various heterogeneous organic photosynthesis.

摘要：Porous organic polymers(POPs)are an emerging class of porous materials,having many promising applications in a variety of *** them,covalent triazine frameworks(CTFs)featuring conjugated and porous structures can be well applied in *** achieve high optoelectronic performance,usually the design and synthesis of CTFs based on appropriate building blocks is *** we report the synthesis of two fluorescent CTFs based on typical fluorescent building blocks,in which CTF-Py constructed from a pyrene(Py)building block was reported for the first time,showing prospective applications in the sensing of nitroaromatics with high sensitivity,and photocatalytic water splitting and carbon dioxide reduction with high performance in comparison with other porous organic materials.

摘要：中国电信现已基本完成800 MHz重耕,实现了以2.1/1.8 GHz优先驻留,800MHz覆盖托底的基本格局,故多频协同参数的合理设置有一定意义,针对室分2.1 GHz与室外1.8 GHz,通过MR覆盖大数据分析的方法,对异频A2门限进行调整与优化,室外A2门限定为-99 dBm,室分A2定为-105 dBm,使用户体验得到提升,并且通过此方法可得到地区的默认参数,通过后续定点测试及路测,可进一步作出针对性优化方案。

摘要：实验动物是医科院校开展实验教学工作的重要载体。本文系统阐述了建立实验动物尸体二维码信息管理系统的必要性,针对实验教学动物使用的特点,设计了一种依托微信小程序的实验动物尸体二维码信息管理系统。通过参与人员的无缝对接,对实验教学动物的尸体从产出、收集、转运、冻存及处理等过程实施动态监管,以期切实推动实验教学管理工作的规范化,杜绝实验动物尸体乱抛现象的发生,维护校园生物安全。

摘要：设计一种下肢智能训练系统,对下肢运动障碍患者进行科学化的康复训练,帮助他们尽快恢复行走能力。本系统应用计算机技术,并采用AVR单片机作为下位机核心控制芯片,采用伺服控制系统作为动力机构,通过伺服电机驱动行走机构来模拟正常步行,实现对患者行走训练,并通过PID控制算法对系统运动进行精确控制。实验表明,本系统具有较高精度及较好的疗效,有较好的临床应用前景。