973计划资源环境领域项目数据汇交实践与思考

随着国内科学数据共享的推进,我国科技计划项目的数据汇交逐渐得到重视和发展.本文基于实践,对已经实施的973计划资源环境领域项目数据汇交的进展进行阶段回顾,介绍了数据汇交在政策制定、汇交中心组建、组织实施策略、汇交环境建设、数据接收管理及共享服务方面的具体做法和进展.并在此基础上,针对973计划资源环境领域项目数据汇交未来在其他领域的推广与汇交数据的深度开发利用进行了初步思考.     

基于2DPCA和Fisher的嵌入式人脸识别系统的实现

使用人脸类Haar特征进行人脸检测,采用2DPCA与Fisher结合的降维算法得到人脸特征子空间,将经过PC机得到的样本特征子空间文件通过网络传输到嵌入式平台,结合最近邻算法识别人脸,实现了一种嵌入式人脸识别系统,较好地解决了嵌入式人脸识别系统由于图像处理数据巨大而造成处理效率低的难点。基于EELiod270嵌入式开发平台实现了该系统,结合实际图片进行了人脸识别测试,实践结果表明系统效果良好。     

个人计算机非线性编辑系统制作电脑特技

非线性编辑系统是目前电视栏目、广告常用的制作设备,本文首先通过个人计算机增加相关的视频1394输入输出设备,然后详细介绍非编软件在个人计算上的视觉与动态图形的电脑特技的实现,最后介绍如何渲染输出视频成品。     

辽宁省非政府组织分类研究及发展趋势预测

辽宁省非政府组织数量众多,发挥着重要的服务社会和参与治理的作用。为了促进非政府组织的健康发展,构建和谐社会,有必要加强对辽宁省非政府组织的分类研究和管理。具体可以采用形成途径、身份的合法性、活动的载体、媒介和外在形式、宗旨和服务对象、业务领域等标准,辨析辽宁省非政府组织的种类与形态。据此,结合社会发展和行政改革的走向,从成长速度和存在形态、社会功能和覆盖领域、自身建设和治理能力等方面对辽宁省非政府组织的发展做出了预测。     

预防医学专业临床课程改革的思考

为适应当前预防医学面临的挑战．包括临床课程教学在内的原有的预防医学课程体系必须进行改革．针对预防医学专业临床课程教学中存在的问题,引入国际标准、编写新教材、改进教学模式、加强临床实践及教师培训。     

论高校文学类通选课的现状及改革策略——以《中国现当代文学作品选讲》为例谈教学实践中问题的解决

笔者试图通过问卷调查的数据和具体课程的实践提出教学改革的具体措施,如分班分层次教学、增加课时、增加师生互动、增加讨论课及细读文本、利用多媒体等手段等,从而收到更好的教学效果,提高课程质量。     

Multivariate predictive model for dyslexia diagnosis

Dyslexia is a specific disorder of language development that mainly affects reading. Etiological researches have led to multiple hypotheses which induced various diagnosis methods and rehabilitation treatments so that many different tests are used by practitioners to identify dyslexia symptoms. Our purpose is to determine a subset of the most efficient ones by integrating them into a multivariate predictive model. A set of screening tasks that are the most commonly used and representative of the different cognitive aspects of dyslexia was proposed to 78 children from elementary school (mean age = 9 years ± 7 months) exempt from identified reading difficulties and to 35 dyslexic children attending a specialized consultation for dyslexia. We proposed a multi-step procedure: within each category, we first selected the most representative tasks using principal component analysis and then we implemented logistic regression models on the preselected variables. Spelling and reading tasks were considered separately. The model with the best predictive performance includes eight variables from four categories of tasks and classifies correctly 94% of the children. The sensitivity (91%) and the specificity (95%) are both high. Forty minutes are necessary to complete the test.     

Creating and facilitating a teacher education curriculum using preservice teachers’ autobiographical stories

Preservice teachers’ autobiographical stories can serve as a personal, powerful, and poignant curriculum for teacher education. This research examines what and how preservice teachers learned through sharing their own and witnessing others’ autobiographical narratives in a literacy methods course. The teacher educator’s key role is examined in facilitating a public context of vulnerability in which preservice teachers shared painful stories revealing their sociocultural inequalities and personal struggles as literacy learners. Roles of the teacher educator are discussed in the transformation of autobiographies into deep understandings, universal connections and substantive strategies for preservice teachers to teach literacy effectively with diverse students.     

三维数值模拟在边坡稳定性分析中的应用

结合云南溪洛渡水电站专用线典型边坡工程,探讨和构建了复杂岩堆体的三维计算模型,讨论了其岩土指标取值和计算参数,运用三维快速拉格朗日差分法软件FLAC3D对复杂岩堆体K35段边坡进行了三维数值模拟计算,并将计算结果进行了后处理分析。根据计算结果系统分析了K35段边坡在削坡及挡土墙加固后的稳定性,给出了溪洛渡水电站专用线该段边坡稳定性的安全评价及处理意见。