Stress in Dairy Farming and the Adoption of New Technology.

Previous studies have identified a number of different farm stressors and have reported gender and age differences in levels of stress. This study aimed to determine stress experienced by New Zealand dairy farmers, particularly in relation to adoption of new technology and its relationship to age and gender. Measures of farm stress and adoption of technology were completed by 985 dairy farmers. The highest levels of stress were reported for time pressures, machinery breakdown, weather, and government policies. Stress related to new technologies occurred rarely. Women reported more stress and higher levels of stress for understanding new technologies. There was also an increase in severity of stress with age related to new technologies. Overall, stress levels were moderate and may reflect favorable economic conditions. The findings suggest a need to tailor stress interventions to meet specific needs. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

延长自组织InAs／GaAs量子点发光波长的研究进展

在近几年的InAs／GaAs自组织量子点的研究中，如何荻得1．3～1．55μm。长波长量子点材料是一个很热门的课题。本文综述了各种延长自组织InAs／GaAs量子点发光波长的方法，并提出了实用化的最佳途径。     

基于XML的试题库模型与实现

由于试题的多样性的类型及半结构性的内容，实现试题规范的数据结构较为困难，造成现有的试题库系统的试题类型较少和内容格式单一。使用XML元数据表示试题的内容，可有效解决上述问题，论文提出一种基于XML的试题库模型，建立具有较高查询效率的试题库组织结构，在系统原型实现上，利用关系数据库的查询性能和XML技术的表现能力，较好地解决了试题库系统对试题类型多样性和查询效率的支持。     

云台山隧道进口黄土段施工技术

从防排水、边仰坡支护、洞口加固、洞内超前支护、钢拱架锚喷联合支护等方面详细介绍了云台山隧道进口黄土段的施工技术,总结了该隧道的施工效果,强调了黄土隧道施工中防排水超前支护预注浆、施工监控的作用,积累了隧道施工经验.     

"摩圣"技术在空气压缩机上的应用

介绍了4L-20/8型空气压缩机采用"摩圣"技术后的运行情况。"摩圣"技术在设备正常运行条件下能成功修复摩擦副的磨损,使之恢复原设计的尺寸和要求,因而提高了生产效率,取得了显著的经济效益。     

纳米技术的发展与市场

综述了纳米科技目前世界发展状况、发达国家争夺主导权的激烈竞争以及世界市场状况 ,叙述了纳米技术在电子信息、生物医药等各方面的应用 ,最后 ,概括介绍了纳米材料的制备方法。     

Failures of retrieval and comparison constrain change detection in natural scenes.

In a change detection paradigm, a target object in a natural scene either rotated in depth, was replaced by another object token, or remained the same. Change detection performance was reliably higher when a target postcue allowed participants to restrict retrieval and comparison processes to the target object (Experiment 1). Change detection performance remained excellent when the target object was not attended at change (Experiment 2) and when a concurrent verbal working memory load minimized the possibility of verbal encoding. (Experiment 3). Together, these data demonstrate that visual representations accumulate in memory from attended objects as the eyes and attention are oriented within a scene and that change blindness derives, at least in part, from retrieval and comparison failure. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

焦粉四辊破碎机高硬度辊皮切削的新工艺

分析了高硬度辊皮的磨损情况；改进了辊皮的切削方案；满足了生产需求并提高了作业率。     

高职高专现代教育技术管理体制之我见

本文从教育技术的含义和发展的历史出发，分析目前高职高专院校的教育技术管理体制现状，提出应建立完善的教育技术管理体制，以推进教育技术工作的协调发展。