主体材料对磷光染料掺杂聚合物薄膜光谱性质的影响

研究了以（PPQ）2Ir（acac）为客体,分别以PFO、PVK、PFB和PFG四种不同聚合物为主体掺杂体系的光谱性质.各种材料的紫外-可见吸收光谱和光致发光光谱的性质表明PVK和PFO与客体之间可以发生有效的能量转移.此外,与光致发光谱不同,发光器件电致发光光谱有较纯的红光发射,表明除了能量转移之外,电荷捕获也是实现器件红色发光的主要原因之一.     

Identifying key issues for university practitioners of garden-based learning in Spain

ABSTRACT

The presence of learning gardens in Spain is growing, and the current scenario is highly diverse in relation to issues such as participatory models or purposes, among others. In the context of the 1^st National Meeting on organic learning gardens, we convened eight expert practitioners in a focus group. Their discourse was analyzed through content analysis, after which four categories were selected for co-occurrence analyses. The most important questions for university garden-based practitioners in the country are presented, related to actors involved, functions that gardens fulfill, strengths of these educational resources, and requirements for their consolidation.     

梅江水系水环境质量评价及污染防治对策

根据对梅江水系7个监测断面的水质监测结果,对梅江水系水环境质量进行了综合评价 据此,提出了相应的污染防治对策,为治理改善梅江水环境质量提供科学依据     

有机化合物的水解反应及研究进展

该文对有机化合物的水解反应机理、应用及研究进展进行综述。     

有机化学实验考核方法的改革和探索

通过对传统有机化学实验考核方法弊端的分析,阐述了改革传统考核方法的必要性,建立了新的考核方法,设计了有机化学实验考核评估指标体系,并将评估指标转化为可操作的教学行为,促进了教与学,做到了全方位、客观地评价学生的实验课成绩。     

问题教学法在有机化学教学中的应用

探讨了有机化学教学中问题教学法的特点、分类、实施步骤和要点。     

Performance of PAHs emission from bituminous coal combustion

Carcinogenic and mutagenic polycyclic aromatic hydrocarbons (PAHs) generated in coal combustion have caused great environmental health concern. Seventeen PAHs (16 high priority PAHs recommended by USEPA plus Benzo[e]pyrene) present in five raw bituminous coals and released during bituminous coal combustion were studied. The effects of combustion temperature, gas atmosphere, and chlorine content of raw coal on PAHs formation were investigated. Two additives (copper and cupric oxide) were added when the coal was burned. The results indicated that significant quantities of PAHs were produced from incomplete combustion of coal pyrolysis products at high temperature, and that temperature is an important causative factor of PAHs formation. PAHs concentrations decrease with the increase of chlorine content in oxygen or in nitrogen atmosphere. Copper and cupric oxide additives can promote PAHs formation (especially the multi-ring PAHs) during coal combustion.     

用新思维、新方法设计有机化学精品系列化实验

介绍了近几年浙江工业大学设计开设有机化学精品系列实验的一些具体措施,包括改革实验教学方式、优化实验内容、开放实验室等,并提出了进一步完善有机化学精品系列实验的建议.经过长期的努力和探索,有机化学实验教学水平有了明显提高,学生的实验技能及综合素质得到提升,教学改革效果显著.     

构建有机化学实验教学体系培养应用型人才

为适应应用型本科人才培养的需要,改革传统的实验教学模式,探讨建立新的有机化学实验教学体系并加以实施。开设综合性、设计性实验项目,体现以学生为主体,重在培养其创造性思维、开发创造力的实验教学思想。通过多媒体教学的引用、实验室开放,开展学生创新性实验项目等措施,切实提高学生的综合素质和能力。     

老龄杉木林土壤活性有机碳的动态变化

通过在福建南平西芹教学林场对老龄杉木林不同坡位土壤微生物生物量碳(MBC)和土壤可溶性有机碳(DOC)动态变化研究,结果表明:土壤MBC和土壤DOC具有明显的季节性波动,均在植物生长旺季维持在较低水平,在植物休眠季节维持在较高水平;在0—20cm的土层内,老龄杉木林不同坡位土壤MBC和土壤DOC的变幅分别在210.44—1418.90mg.kg-1和8.24—38.54mg.kg-1,两种易变有机碳的含量基本表现为中坡位>下坡位>上坡位;相关分析表明,土壤MBC与DOC之间的相关性达到显著水平,土壤MBC和DOC与土壤温度显著负相关,与土壤含水量、凋落物生物量和降雨量的相关性未达到显著水平,说明土壤MBC和土壤DOC的变化与土壤中的微生物活性、林木的生长以及根系分泌物等因素有关。