拉曼光谱在企业产品质量监控过程中的应用

以激光拉曼光谱仪为测试手段,根据LED背光模组生产过程中可能产生的杂质,首先建立拉曼光谱的杂质标样谱库,再采用谱图检索和人工比对相结合的方法,确定未知杂质的归属,确认率达91%。该方法能有效帮助相关企业从源头上控制杂质的产生、提升产品的合格率、降低生产成本。这种根据企业生产流程和产品特点的杂质检测方法,针对性强、效果明显。     

Student achievement and differential reinforcement of incompatible behavior: Hand raising

Workbook reading achievement of five second-grade girls was assessed under two teacher-contact contingencies. Under one contingency, teacher contacts were made during on-task behavior. Under the other contingency, differential reinforcement of an incompatible behavior (DRI) was in effect, with teacher contacts contingent on students' hand-raising behavior. Both reading achievement and time on task were greater under the on-task contingency than under DRI for hand raising.     

Gender differences in the academic career

This study examines sources of satisfaction, indicators of stress, academic performance, and reward structure in the academic careers of male and female faculty at a major midwestern state university. Faculty pairs were selected from five academic divisions. A total of 58 matched pairs were identified. Of these, 63 faculty responded, yielding data for 23 matched pairs. Subjects were mailed the Academic Career Development Survey, consisting of 144 items. Results indicated that self-reported physical and mental health, and professional and personal life satisfaction were high for both males and females. Both males and females placed high importance on their career and on marriage/other intimate relationships; however, both reported high levels of dissatisfaction with these factors. Gender differences were found in both satisfaction and type of stress reported; no gender differences were found in composite teaching and research performance indices. Salary data, obtained for 42 matched pairs, indicated similar salary levels for men and women. Results were discussed with respect to prior research on gender differences and the academic career.     

Response to Grace’s reflections on Allen and West’s paper

Since the 1970s, school effectiveness research has looked for process-variables filling the black box between mainly structural school features and cognitive outcomes in students. Two concepts came to the fore: school climate and school culture. Both concepts are currently used interchangeably, although it is open to debate whether both are actually the same thing. Because of the way culture and climate are defined and subsequently measured, we propose school culture is a better frame from which to study school effectiveness. This article goes through the premises of perceptual measurement usually overlooked in climate research, and we demonstrate empirically by means of very basic and simple methods and techniques that perceptual measurement and measurement based on assumptions are different approaches and might yield totally different results on an aggregated level. We conclude by demonstrating how culture can be probed and integrated in the models traditionally used in school effectiveness research in an advantageous and theoretically sound way.     

女性群体的维权者“人主”--舅权在晋北地区的传播与发展

在晋北广大农村地区舅舅和外甥的关系是这样体现的,当进入村寨以后,经常听到人们在谈论“人主”的一些情况,尤其是在诞生礼、婚礼、丧礼等仪式当中。“人主”在严格意义上来说,是舅权的传播和发展。文章仅从人们的生活当中的仪式活动来认识“人主”这一概念,并且探讨了“人主”在当地社会生活中发挥的社会功能,以及这种功能是通过什么方式实现的。     

领导人才品评价的AHP模型

“品德”是领导人才选拔与测评中的一个重要因素,选用领导人才,一贯坚持“德才兼备”的标准,坚持“任人唯贤”的原则。在当前变革与转轨时期,德更是被放到了前所未有的地位,因此,对领导人才品德的研究具有重要的理论和现实意义。本文试用AHP法来建立领导人才品德的评价模型。     

Synthesis of polyketone by copolymerization of styrene and CO using carbon nanotube-complex Pd2+ catalyst

The dipping method was devised to deposit Pd onto carbon nanotube as supported catalyst(Pd/CNT) for the copolymerization of carbon monoxide(CO) and styrene(ST) towards the formation of polyketone(PK).The Pd/CNT was characterized by X-ray photoelectron spectroscopy(XPS),X-ray diffraction(XRD) and high-resolution transmission electron microscopy(HRTEM).The construction and crystallization property of PK were evaluated by Fourier transform infrared spectroscopy(FTIR),13C-nuclear magnetic resonance(NMR) and XRD,respectively.The catalyst showed excellent activity and reusability in promoting the fabrication of PK.It can be recycled 14 times with the highest total catalytic activity of 4 239.64 gPK/(gPd·h) at Pd content of 8.63wt%.The results indicate that the prepared catalyst is effective to catalyze the copolymerization of CO and styrene.     

20世纪以来近代小说词汇研究综述

"小说"在中国有着悠久的历史,但是到了近代才发展到高峰期,并出现了许多流传至今的作品,这些作品对进行近代汉语词汇的研究来说是很好的语言材料,从而受到了很多词汇学专家、学者的重视。特别是20世纪以来,有关近代小说词汇的研究成果大量涌现,但也存在一些问题,有待于专家学者来解决。     

在线协作学习过程中社会临场感的社会网络分析

已有的研究和实践证明,社会临场感有助于降低学习者在线学习过程中的孤独感、提升学习满意度和促进虚拟学习社区的建立。社会临场感与交互的关系十分密切,以往研究者主要借助内容分析方法或调查问卷来分析两者之间的关系,注重测量个体的意见和主观的感知,但无法反映社会临场感随时间发展变化的动态特征。社会网络分析(SNA)的中心度、密度、中心势、派系等参数能够较为合理地表征在线协作学习中师生的交互过程特征,为研究这一问题提供了新的思路。通过对一门网络课程实施期初、期中和期末三个阶段师生在线论坛中的交互过程与行为进行定量和可视化的社会网络分析,结果显示:学习者在不同学习阶段的社会临场感存在显著差异,交互和社会临场感之间具有十分紧密的联系,个体的社会临场感会随时间的发展而变化。社会网络分析有助于理解在线学习环境中社会临场感的形成和发展变化,有助于教师改进教学,提升网络教学的质量。     

高等学校人文教育缺失的省思

近年来,我国高等教育发展迅猛,大众化的目标已经实现。但与此同时,在高等教育发展中所反映出来的人文教育缺失的问题却不能小视。人文教育缺失主要源于对科学教育理念的过分关注,而这样一种教育理念并不能代表高等教育的真正目的。因此,在高等教育迅速发展的今天,必须重视树立人文教育理念,使人文教育"归位",从而实现我国高等教育的健康发展。