精品课程"数字电子技术"自主学习模式研究与实践

自主学习是当前教学改革中一个重要的研究课题。在自主学习中,教师作为教学过程的主导,学生作为学习过程的主体,只有在教师的指导下,充分发挥学生的主体作用,才能培养学生的自主学习能力,从而促进学生的禀赋和潜能的充分开发,提高教学质量。本文介绍了自主学习的概念,结合教学改革,探索自主学习模式,介绍我校“数字电子技术”课程自主学习实践的具体措施。并就学生的反馈意见,讨论了自主学习改革的效果及进一步改进措施。     

Spirobifluorene Dimers: Understanding How The Molecular Assemblies Drive The Electronic Properties

Spirobifluorene (SBF) is one of the most important scaffolds used in the design of organic semi-conductors (OSCs) for electronics. In recent years, among all the structures developed for these applications, SBF dimers have been highlighted due to their great potential in thermally activated delayed fluorescence and in phosphorescent organic light-emitting diodes. Attaching two SBF units generate 10 dimers, each possessing its own structural specificity, which in turn drives its electronic properties. These ten SBF dimers are gathered herein. Understanding how the molecular assembly determines the electronic properties has been one of the pillars of organic electronics. This is the goal of this article. As positional isomerism is a key tool to design OSCs, defining the design guidelines for the SBF scaffold appears of interest for the future of this building block. Herein, the importance of the two main parameters involved in the electrochemical and photophysical properties, namely the nature of the phenyl linkages and the steric congestion between the two SBF units is discussed. The combination of these two parameters drives the electronic properties but their respective weight is different as a function of the regioisomer involved or of the property considered (frontier orbitals energy level, absorption, fluorescence, phosphorescence).     

微放电检测方法分析

首先分析了微放电的影响,指出了微放电检测的重要性。总结了现有的微放电检测方法,并对其进行分析,结合工程实践总结了各种检测方法的优缺点及适用范围。最后,总结分析了微放电检测方法,并指出了微放电检测方法的研究趋势。     

无磁带化摄制设备研究与应用

目前传统摄录机老化的现状和应用的瓶颈,促进了能给广电、电教摄录带来高效率、低成本制作要求的无磁带化摄制设备的发展,通过对无磁带化摄制过程关键技术的分析,如性能测试、存储介质以及与非线性编辑系统兼容性等方面的研究,提出适应于不同场合的摄制方案。     

In search of computer-aided social support in non-communicable diseases care

Non-communicable diseases burden is well-known and care for these diseases goes beyond patients’ engagement, extending to their family, friends, and acquaintances. The ability of social relations in alleviating the harmful effects of health risks is known as social support. Computing can be used to promote social support to enhance the care of non-communicable diseases. However, it is unclear how computing obtains such enhancement. This paper presents a systematic review, in the form of a mapping study, aiming to answer how computing enhances non-communicable diseases care by using social data and by promoting social support. It also looks for available computing models focused on social support promotion in non-communicable diseases care. The study was guided by a two-phase process review, resulting in 38 reviewed papers from journals, conferences, and chapters in the period from 2010 to 2016. In general, the reviewed papers focus on controlled trials, frameworks and systems, knowledge discovery, simulation models or social media usage analysis. Knowledge discovery was the predominant subject, followed by social media usage analysis, and frameworks and systems.     

高分子PTC材料的进展与发展趋势

介绍高分子PTC材料的历史、结构组成、理论和工艺研究进展,以及国内外的应用和产业化发展情况,并就高分子PTC材料的理论研究和产业化发展提出见解。     

勘测关键技术及其综合应用研究

勘测关键技术及其综合应用研究，系国家“八五”科技攻关２０８－０２－０５专题。该专题研究结合锦屏一、二级等工程，专业面广，应用性强，研究工作难度大，是当前水电工程地质勘探技术中的薄弱环节，是关系到前期工作进展和工程经济效益的重大课题。其研究内容包括：岩心定向技术、砂卵石层取心技术，地应力测试与分析新技术，岩体裂隙结构面的计算机处理系统、岩溶探测新技术、高分辨率工程地震勘探技术、３０００系列测井仪的改     

县级电视台现场直播技术探讨

县级小型电视台没有电视转播车,很难对一些重要的新闻事件或文艺演出等进行现场直播,作者通过多年的实践探索出一套简单实用的方法,在现场直播中,视音频信号处理及传送、导播通信是很关键的环节,对这两个问题进行重点分析并提出具体的解决方案。     

"电工学"课程教学中的四个有力杠杆

电工教学内容繁杂,头绪众多。若能够巧妙利用四个有力杠杆,就能大大提高教学效果,使学生快速掌握电工理论和技能。四个杠杆即：通过挖掘基本知识来沟通新知;利用对称性来减少学生对于知识的记忆;从对电压和电流的微观考察走向对能量的宏观分析;充分利用实践提升技能和获得认识。     

对缺血性脑卒中患者二级预防、卒中风险及日常生活能力的门诊随访调查研究

目的：通过调查及概述本院门诊缺血性卒中患者的医疗现状,评价神经科门诊缺血性卒中患者二级预防中期随访结果,Essen卒中风险评分量表（EsRS）的有效性和可靠性及其与日常生活能力评定（mRS）的相关性。方法：以2010．7至2010．9内新发脑梗死门诊随访患者为研究对象,调查患者基本情况、危险因素、合并用药情况,并进行Essen及mRS评分。1年后随访患者,评价心脑血管终点事件发生率及其与Essen评分的关系。结果：人组102例患者,平均年龄67．4±岁,分别伴有糖尿病、高血压、高脂血症、动脉粥样硬化性疾病,追踪其一年后使用抗血小板药、降压药、降脂药及降糖药的比例。Essen评分与mRS评分呈正向相关关系;EsRS≥3分的患者终点事件发生率显著高于EsRs〈3分的患者。结论：目前缺血性脑卒中的二级预防仍存在药物应用不足、慢性基础疾病控制率低、长期依从性较差等情况。Essen评分可以有效地评估患者发生终点事件的风险以及缺血性脑卒中患者的预后。