黑臭水体组合生物净化技术研究进展

目前我国许多城镇水体出现黑臭现象,加强对城镇黑臭水体的治理是当前的迫切任务。介绍了黑臭水体的定义、形成过程、特点及我国黑臭水体治理的现状;概述了黑臭水体治理常用方法,提出生物技术的优点与重要性;阐述了组合生物净化技术治理黑臭水体的技术思路,即通过人工曝气+投加菌剂+投加促生剂+投加填料+栽种水生植物进行净化;综述了组合生物净化技术不同环节的净化原理、主要技术措施及研究进展;总结了组合生物净化技术综合应用与效果,并对组合生物净化技术未来的研究方向进行了展望,旨在为利用组合生物技术净化黑臭水体提供多样化视角及合理的治理框架。

ZnO Films on Transferable and Low Thermal Resistance Graphite Substrate Grown by Ultrasonic Spray Pyrolysis

ZnO thin films were deposited on graphite substrates by ultrasonic spray pyrolysis method with Zn（CH3COO）2·2H2O aqueous solution as precursor. The crystalline structure, morphology, and optical properties of the as-grown ZnO films were investigated systematically as a function of deposition temperature and growth time. Near-band edge ultraviolet （UV） emission was observed in room temperature photoluminescence spectra for the optimized samples, yet the usually observed defect related deep level emissions were nearly undetectable, indicating that high optical quality ZnO thin films could be achieved via this ultrasonic spray pyrolysis method. Considering the features of transferable and low thermal resistance of the graphite substrates, the achievement will be of special interest for the development of high-power semiconductor devices with sufficient vower durability.

“产-学-研-用-赛”五位一体的轮机工程专业创新人才培养模式研究与实践——以《机器人概论与实践》课程为例

“互联网+”时代和新一轮科技革命为创新型人才培养提出了更高的要求。为提升人才创新能力培养质量,该文打造了面向创新创业、科学研究、产业实践的“产-学-研-用-赛”五位一体的人才培养模式。该文从课程出发,以《机器人概论与实践》课程为例,从创新人才培养目标、教师队伍、教学资源、教学方式、能力评价、课程思政等培养模式全流程进行了深入的研究与实践。该文还展示了创新人才培养模式的实施效果,以期能形成可推广复制的人才培养模式范例,为不同类型人才创新能力的培养提供参考。