高速线材核心设备在线监测诊断技术的应用

为提高高速线材设备的预知维修能力,达到降低成本、减少事故时间的目的,对高速线材核心设备安装在线监测诊断系统。通过系统的运行,实现预知维修,对设备的安全可靠运行起到了积极的保障作用,同时保证了连续性生产。     

高职"产学研"联盟策略探析

文章在分析高职“产学研”联盟现状的基础上，探讨了协议联盟、订单式联盟、中介联盟、合资联盟、官产学联盟等不同形式的联盟策略，并指出高职“产学研”联盟应该注意的几个问题。     

高中学生升学就业倾向的实证研究

对高中学升学就业倾向的准确了解，能够为高中学生的升学就业指导提供依据。编制适合我国高中学生特点的升学就业倾向量表，对于每一个高中学生选择自己未来的学习方向和职业具有重要的实用价值。本研究将高中学生的升学就业倾向分为技术类、研究类、艺术类、社会类、经营类、事务类、自然类七种类型。问卷调查既验证了本分类方法的可行性，也揭示出了我省高中学生基本的升学就业倾向。     

课程知识抉择中的“两难”困境与出路

知识价值问题是课程抉择的一个重大问题。长期以来,人们踯躅于科学与人文、实用与教养的二难选择,只有处理好科学知识与人文知识、教养知识与实用知识在课程中的关系,才能对基础教育的课程设计有所帮助。     

基于PCA的决策树优化算法

为了改善传统ID3算法在分类属性选择上存在多值偏向性的不足,提出基于PCA的决策树优化算法。在普通基于PCA 的决策树改进算法中,存在数据经降维处理后代表性不强的问题,导致算法需经过多次数据运行后,准确率才能小幅提升。在ID3算法基础上,在分类前两次提取属性特征值,并计算了需要分类的数据量,也即对原始数据进行最重要的属性选择。在子树建立之后,再进行数据的降维合并选择。采用UCI数据库中的3个数据集对改进算法进行验证,结果表明改进算法的平均准确率达到94.6%,相比传统ID3算法与普通PCA决策树优化算法分别提升了1.6%和0.6%。因此,基于PCA的决策树算法能在一定程度上提升结果准确率,具备一定的应用价值。     

高等职业教育实践教学体系的构建

实践教学体系是高职人才培养模式中十分重要环节，能否建立科学合理的实践教学体系，直接影响应用型人才培养的质量。合理构建实践教学体系首先应明确其指导思想、基本原则和目标要求，完善体系的构成元素和管理，并以师资建设为保证。     

高中几何课程标准之我见

高中几何课程设计应该使学生在现实的和未来的学习经验（知识的经验和实际的经验）中，提升他们对几何价值的认识，高中几何课程标准的过程标准应该包括推理与证明、问题解决、多重表示和交流与合作，过程标准贯穿于教学内容标准之中。     

Academic socialization,parental educational expectations,and academic self‐efficacy among Latino adolescents

This study examined the direct association between parental educational expectations and adolescents’ academic self‐efficacy, as well as the moderating influence of parental academic socialization messages. Participants were 148 Latino parent–adolescent dyads with the majority of Mexican origin (80.4%). Most of the parent participants were mothers (85.8%). Adolescents were 13 (46%) or 14 (54%) years of age, and 53% identified as female. Adolescents reported their academic self‐efficacy and perceptions of their parents’ educational expectations; parents reported on their academic socialization messages of shame/pressure and effort regarding academics. The results suggest that, after accounting for parents’ level of education and immigrant status, parental educational expectations were positively associated with adolescent academic self‐efficacy. This association was stronger among adolescents whose parents reported transmitting fewer messages of shame/pressure and academic effort. These results point to the importance of nuances in the content and type of academic socialization messages within Latino families.     

风险认知与决策领域的研究现状分析

风险决策是指决策者在面临两个或两个以上不确定的决策后果,尤其是在面对伴有负面结果的可能性时,所产生的复杂心理过程.对个体风险知觉的探究主要包括风险认知与风险偏好两个方面.风险决策常常涉及多个不确定性的负面结果.因此,个体所知觉到的风险情景也不会是单一的,对动态决策模型的研究成为决策科学发展的一个重要方向.     

Reflectors as online extraverts?

Increasingly, online learning is perceived as an effective method of instruction. Much recent educational research has focused on examining the purposes and situations for which online education is best suited. In this paper, students enrolled in two online courses are compared with their peers enrolled in equivalent classroom‐based courses to investigate aspects of the relationship between learning style and mode of delivery. Student satisfaction measures are taken from participants in both modes of delivery and compared with student learning style. Feedback from the ‘Reflector’ learning style demonstrates higher satisfaction levels with the online mode of delivery compared with their matched counterparts following equivalent classroom‐based courses. Therefore, whilst ‘Reflectors’ might be regarded as Introverts in the traditional classroom setting, the additional time for reflection offered by online delivery makes this group more likely to contribute to online discussion, report higher satisfaction levels and generally behave more like online Extraverts.