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。     

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。