Synthesis, Structure, and Optical Limiting Properties of an Axial Substituted Bis(8-oxide quinoline)zirconium Phthalocyanine

A novel bis(8-oxide quinoline)zironium phthalocyanine [(OQ)2 Zr Pc] with two 8-oxide quinolone anions at the same axial positions has been successfully synthesized and its chemical structure has been assigned by the 1 H NMR, MS and two-dimensional correlation infrared(2D-IR) spectroscopy as well as by single-crystal X-ray structural analysis. It possessed a moderately effective nonlinear absorption coefficient βeff of 6.69×10-14cm/GW at 532 nm in DMF solution, implying it is a promising candidate for nonlinear optical materials.

改进收敛因子和变异策略的灰狼优化算法

针对灰狼优化算法(GWO)在求解复杂优化问题时容易出现收敛速度慢和早熟收敛等缺点,提出了一种改进收敛因子和变异策略的新型灰狼优化算法(CMGWO)。为了平衡GWO算法的全局探索能力与局部开发能力,设计了一种基于反余弦函数变化策略的收敛因子;为了进一步提高算法跳出局部最优解的能力,提出了一种新的位置变异策略。仿真实验结果表明,与已有的3种智能优化算法和5种典型改进灰狼优化算法相比,改进算法具有更快的收敛速度和更高的寻优精度,更适用于解决各种函数优化问题。

无机与分析化学实验教学质量体系的建设与实践

针对一般应用型本科院校,特别是独立学院存在的实验教学资金投入有限和学生理论知识薄弱等问题,以应用化学、化学工程与工艺、材料科学与工程等工科专业开设的无机与分析化学实验为示范,对课堂思政、实验内容、教学模式、考核方式和课后导向进行了调整改革,构建一套适合于应用型本科院校需求的无机与分析化学实验教学质量体系,为实验教学的顺利开展和教学质量的提高提供了保障。