教材中的数学史:目标、内容、方式与质量标准研究

从世界范围看,数学教育中的数学史研究热度不断升温。教材中融入数学史需要解决:目标与价值取向、内容与原则、可能的方式、质量标准等问题。教材中融入数学史服务于数学自身和数学教学,可实现"文化""探究"与"发生"价值。素材选取应以一手原始文献为主,遵循科学性、适切性和有效性原则,以附加式、复制式、顺应式和重构式四种方式融入教材。     

全球化场域中社会主义意识形态话语权的变化与建构

在全球政治、经济、文化的相互作用下,意识形态的政治话语权中心地位被打破,文化话语权彰显;主流思想文化话语权面临被分化、淡化等的处境与认同危机;作为规制个体精神生活的话语权受到生活碎片化、选择多样化,以及消费主义生活方式的挑战.考察和研究全球化场域中意识形态话语权的变化及其特点,以马克思主义为指导,以社会主义核心价值观为基本遵循,加强社会主义意识形态话语权建构,这对于我们有效应对当前意识形态领域的斗争,巩固马克思主义在意识形态领域的指导地位,牢牢掌握社会主义意识形态话语权,具有十分重要的意义和作用.     

General University Requirements at Hong Kong Polytechnic University: evaluation findings based on student focus groups

Under the new four-year undergraduate programme, a general education framework titled ‘General University Requirements’ (GUR) has been developed and implemented since 2012/2013 at Hong Kong Polytechnic University (PolyU). To evaluate the implementation and effectiveness of the GUR in its first year, focus group interviews with students were carried out. In 13 focus groups, 62 first-year students from eight faculties/schools who took GUR subjects in 2012/2013 academic year were interviewed by trained researchers. Results showed that students generally had good perceptions of the GUR in terms of the subject content, teaching methods and the overall effectiveness of the subjects. The interactive teaching and learning initiatives adopted in GUR subjects were particularly appreciated, although students expressed minor concerns on the administration of GUR subjects. The results suggest that the first-year implementation of the GUR at PolyU was generally smooth and successful from the perspectives of the students.     

Changes in children’s anger,sadness, and persistence across blocked goals: Implications for self-regulation

The current study took a person-centered approach to examine the heterogeneity of changes in children’s emotions and persistence during a goal-blocking task and examined how different profiles of emotions and persistence related to children’s self-regulation. Children’s anger, sadness, and persistence were rated in a goal-blocking task in toddlerhood (T1; N = 140, 72 boys, M_age = 2.67 years, 90.7% White) and preschool (T2). Children’s self-regulation, specifically sustained attention and engagement, was assessed at T1, T2, and early school-age (T3) from 2005 to 2012. Growth mixture modeling revealed two classes of children at T1 and three classes at T2 with different patterns of anger, sadness, and persistence. Children’s classification at T2, but not T1, significantly predicted their sustained attention and engagement both concurrently and longitudinally.     

LD夜视成像探测中基于PSF的超分辨率重建技术研究

夜视目标识别在视频监控中起着非常重要的作用。从早期的红外热成像发展至今,激光夜视成像系统被广泛的应用。它不仅受到大气吸收和散射特性的影响,还与光学系统中的透镜及传感器的衍射极限有关。在既有成本下,通过图像复原和超分辨率重建,可以尽可能的提高夜视成像的成像质量。很多学者的研究结果表明,成像系统的点扩散函数作为先验知识,可以提高图像复原的质量。因此,本文在最大后验概率框架下,实现点扩散函数与凸集投影超分辨率重建相结合,并应用到半导体激光夜视成像探测系统中,客观的图像质量评价标准被用来决定迭代次数。目标识别的实验结果表明,用本文提出的重建方法可以有效提高半导体激光夜视成像的范围和成像质量。     

外贸函电的语篇功能分析

对外贸函电语篇的分析有助于理解外贸信函的写作方法,更好地开展信函沟通。本文从语篇功能的主述位结构、信息结构及衔接三个方面对外贸函电的语篇功能进行分析,探讨外贸函电的语法和词汇运用。     

“生产教学化，教学生产化”人才培养模式的探索与实践

在高职食品加工技术专业中探索出“生产教学化,教学生产化”的工学结合人才培养模式,即以“食品加工高新技术中试工程中心”为依托建立了几条柔性中试生产线,模拟企业提供不同的岗位,供学生轮训。教学内容围绕企业委托的中试项目（产品）等现实任务展开从而实现生产教学化,教学生产化。教学实践表明,此模式有利于提高学生的综合素质能力。     

上海转型发展与政产学研协同创新研究

分析上海转型发展过程与政产学研模式、效果和存在问题。发现上海政产学研模式多样,科技带动作用较强,但由于企业、政府和学研自身的欠缺以及协同平台不健全等限制了政产学研功能的发挥。提出在健全政产学研协同创新平台的基础上形成政府引领、企业主导、高校和科研机构积极参与的创新格局,激发政产学研各级主体的创新动力,达到政企协同、企研协同、政研协同,实现技术创新和发展转型。     

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.