Microfluidic reactors for visible-light photocatalytic water purification assisted with thermolysis

Photocatalytic water purification using visible light is under intense research in the hope to use sunlight efficiently, but the conventional bulk reactors are slow and complicated. This paper presents an integrated microfluidic planar reactor for visible-light photocatalysis with the merits of fine flow control, short reaction time, small sample volume, and long photocatalyst durability. One additional feature is that it enables one to use both the light and the heat energy of the light source simultaneously. The reactor consists of a BiVO₄-coated glass as the substrate, a blank glass slide as the cover, and a UV-curable adhesive layer as the spacer and sealant. A blue light emitting diode panel (footprint 10 mm × 10 mm) is mounted on the microreactor to provide uniform irradiation over the whole reactor chamber, ensuring optimal utilization of the photons and easy adjustments of the light intensity and the reaction temperature. This microreactor may provide a versatile platform for studying the photocatalysis under combined conditions such as different temperatures, different light intensities, and different flow rates. Moreover, the microreactor demonstrates significant photodegradation with a reaction time of about 10 s, much shorter than typically a few hours using the bulk reactors, showing its potential as a rapid kit for characterization of photocatalyst performance.     

《谷梁传》叙事比论(转载)简

通过《谷梁传》十五则叙事文字与《左传》《公羊传》同题故事逐一比较可以发现,有谷梁氏优于左氏、公羊氏者,有三家各有千秋者,有谷梁氏不如二氏者.谷梁氏多数故事不如左氏,少数互有短长.谷梁氏叙事与公羊氏相差无几.出现上述差异的原因在于,谷梁氏、公羊氏是经学家,重在解释《春秋》经义,故事只是为释义的补充而已,因而忽视叙事的完整性和生动性.左氏是史学家兼史传文学家,长于叙事,重视细节的真实性和情节的完整性,解释《春秋》经义只是偶尔为之.     

“跟我学汉语”语法练习题型考察与分析

本文选取了专为海外中学生编写的对外汉语教材“跟我学汉语”（英语版）作为研究材料,对这套教材的语法练习题型进行考察和分析,并结合青少年的心理特点总结了这套教材语法练习编写的成功之处,以期为海外青少年对外汉语教材语法练习的编写提供借鉴。     

从萨丕尔-沃尔夫假说看二语习得中的母语迁移

萨丕尔-沃尔夫假说是结构主义语言学的重要学说之一,它从人类语言的多样性出发,探究语言和思维、文化之间的关系,对外语教学与研究具有重要的理论价值和现实意义。本文将萨丕尔-沃尔夫假说运用于二语习得,分析母语正迁移和负迁移对二语习得的影响,并总结出两种迁移对二语习得的启示。     

浅谈初中地理教学导入七法

教学导入作为课堂教学重要的组成部分,发挥着不可替代的作用。有效的教学导入将会是一节课成功的保证,本论文主要借鉴了初中地理教学中先进的导入方法,通过预习、复习、图片、音乐短片、时事热点、生活实际、疑问设置这七个方面,构建一套行之有效的课堂教学导入方法,进一步完善初中地理教学导入模式,为初中地理课堂教学导入提供有效的建议。     

基于新型人才培养模式的教学改革探索

“卓越工程师教育培养计划”是我国高等教育人才培养模式中长期发展规划的一个重要计划。本文主要针对卓越工程师教育培养计划的教学改革及其国内外发展现状进行调查与研究,并在此基础上对哈尔滨工程大学新型人才培养模式的教学改革进行了探索。     

“有机合成原理”教学探讨

“有机合成原理”的教学要联系反应机理,理解反应特点和影响因素;结合与生活相关的实例,精讲合成路线的优选;合理运用启发式、讨论式教学方式;多种教学手段有机结合。     

低碳旅游视角下黑龙江低碳冰雪旅游发展路径与对策研究

低碳冰雪旅游是实现黑龙江省冰雪旅游业可持续发展的必经之路。采用文献资料法、田野调查法、专家访谈和逻辑分析法等研究方法,通过诠释低碳旅游的内涵,从当前黑龙江省冰雪旅游资源现状、冰雪旅游开展内容、冰雪旅游客源市场开发和培育现状等实际情况出发,探讨了黑龙江省低碳冰雪旅游践行途径,提出了通过行为引导推广低碳化的生产方式、消费方式、生活方式、制定低碳冰雪旅游相关政策、积极培育低碳冰雪旅游环境氛围、加大舆论宣传力度传播低碳理念等黑龙江发展低碳冰雪旅游的对策,为黑龙江省冰雪旅游业发展提供相关参考。     

Cultivating an inclusive individuality: Critical reflections on the idea of quality education in contemporary China

Quality education reform in China gives high importance to developing the individual’s full potential. However, the education system is dominated by a kind of exclusive competitiveness in which high stakes examinations shape the learning process. This paper seeks to bring a philosophical perspective regarding the disjunction between the intent of reform and the reality of an exam-oriented system by proposing a conception of inclusive individuality. I argue that the conception of inclusive individuality pays particular attention to the inner strength of every unique student and is crucial to realizing the individual’s full potential. The ideas of three philosophers, John Dewey, Liang Shuming, and Albert Camus, are drawn upon in formulating this conception of inclusive individuality. At the practical level, the paper suggests the use of narrative approach as a way of developing students’ inner strength to bring their lives into the classroom and empowering them to interact with the formal curriculum and develop their own inclusive individuality.