Degradation kinetics and mechanisms of phenol in photo-Fenton process

Phenol degradation in photochemically enhanced Fenton process was investigated in this work. UV-VIS spectra of phenol degradation showed the difference between photo-Fenton process and UV/H2O2, which is a typical hydroxyl radical process. A possible pathway diagram for phenol degradation in photo-Fenton process was proposed, and a mathematical model for chemical oxygen demand (COD) removal was developed. Operating parameters such as dosage of H2O2 and ferrous ions, pH, suitable carrier gas were found to impact the removal of COD significantly. The results and analysis of kinetic parameters calculated from the kinetic model showed that complex degradation of phenol was the main pathway for removal of COD; while hydroxyl radicals acted weakly in the photo-Fenton degradation of phenol.     

浅析俄语主从复合句中的分解型（复）句

本文就俄语主从复合句中分解型(复)句进行了整理、归纳和分析,以便学生更好地掌握与理解。     

Domain Coloring and the Argument Principle

Abstract

The domain-coloring algorithm allows us to visualize complex-valued functions on the plane in a single image—an alternative to before-and-after mapping diagrams. It helps us see when a function is analytic and aids in understanding contour integrals. The culmination of this article is a visual discovery and subsequent proof of the Argument Principle, which relates the count of poles and zeros of a meromorphic function inside a contour to the accumulated change in argument of the function around the contour. Throughout, I offer connections to standard learning goals of courses in complex variables.     

略论电视教材类型及传播方式的变革

近年来,随着数字技术和计算机网络技术的发展及其在电视教材制作中的应用,传统的电视教材在类型上不断推陈出新,并出现了新型电视教材——IP课件。另外,从传播方式上看,电视教材的传播正在从单向线性向交互网络转变。所有这些,都使得电视教材在网络时代的应用呈现出了新的特点,本文对此进行了论述和分析。     

示范院校“生料制备与水泥制成操作”课程改革——以昆明冶金高等专科学校为例

为适应高职高专教育改革的需要,提高学生学习兴趣和教学质量,对＂生料制备与水泥制成操作＂课程进行改革,并采用问卷调查的方式对实施效果进行分析,结果表明,该课程改革取得了一定的效果,并为今后更好地实施课程改革打下了良好的基础。     

《法苑珠林·感应缘》中相关鬼条目的材料来源分析

作为一部在佛教史上占有重要地位的类书,《法苑珠林》在其＂感应缘＂中运用了大量材料来印证佛经中的相关理论。具体到佛经中重要的内容之一＂鬼＂,《法苑珠林.感应缘》共编辑了约二百四十则条目,这些相关鬼的内容在来源上,既有固有材料的引用,亦有编者自己的撰写;在形式上,既有言论,又有故事。     

Differences of math anxiety groups based on two measurements,MASS and EEG

This article investigated how mathematic anxiety (MA) of Korean middle school students could be reduced by comparing analytically their cognitive neuroscience and questionnaire results. We developed a three-hour Complex Treatment Program (CTP) on quadratic functions for the study. In the summer of 2016, we collected data of the pre and post MA questionnaires by Mathematics Anxiety Scale for Students (MASS), the percent of correct answers (PCA) and reaction time (RT) by E-prime program, and also brain-imaging data of the event related potentials (ERP) by Electroencephalograph (EEG) using computer-based functional F-G model. The result indicated the CTP to be effective with the group with higher math anxiety and the group with higher achievement respectively. The MASS result was verified with the better performance of PCA on type G, which was measured by E-prime program. Some interesting patterns were revealed on brain-imaging data by EEG, indicating more brain activities with the MA groups.     

汉字不能“弃简复繁”的三大理由

第11届全国政协会上,有些人联名建言要恢复繁体字。对"此"现提出不能"弃简复繁"的三大理由:①汉字发展的历史是沿着一条逐步简化的道路前进的;②现代的简化字是汉字发展中一个新的里程碑;③书写便捷是汉字向前发展的动因。从而说明"弃简复繁"的提案是不可取的,汉字自身的演变是遵循着一条"避繁趋简"规律的。     

论诗人海子的“王者情结”

海子作为中国第三代诗歌浪潮的杰出代表,其独具个性的诗风,庞大复杂而又相对集中的诗歌意象,都有着审美和研究的价值。以往学术界对海子诗歌的研究多集中在"麦地情结"上,很少言及诗歌意象具体分析与诗歌王国的向往。通过对诗人的成长、诗歌内容、思想向度等方面的分析,重点探讨诗人笔下另一意象的集中——"王者情结",以及其与诗人的非正常死亡之间的隐秘关系,以期能对学术界研究诗人海子提供一个崭新的视野。     

高职《高分子材料检测技术》课程教学设计与实践

根据高职课程教学的特点,对《高分子材料检测技术》的岗位职业能力、课程设计的理念与思路进行了分析,从能力目标、课程的项目内容、课程教学方法的改革、课程教学手段的改革及课程考核评价五个方面对课程教学设计进行了阐述,并对《高分子材料检测技术》课程课程标准教学设计与实践进行了总结．