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��[Purpose/significance] Ancient book conservation in China should obey the identifiable principle so as to maintain the objectivity and authenticity, scrupulously abide by the ethics, ancient book conservation needs to confirm reasonable identifiable technology.[Method/process] This paper proved that Chinese ancient book conservation technology had identifiable function by summarizing identifiable characteristic and using the identifiable effect provided by the conservation case.[Result/conclusion] Chinese ancient book conservation technology complies with identifiable principle, integrates conservation and identifiable functions, and has favorable identifiability and conforms to the characteristics of Chinese ancient books. The application of identifiable technology should depend on the shape of ancient books and the purpose of their conservation, and the specific situation should be analyzed.     

建立高校图书馆信息资源长期保存体系的研究

高校图书馆馆藏文献资源是信息开发和信息服务的基础和保障。数字资源在高校图书馆馆藏中所占的比例逐年提高,但纸质文献资源仍然是获取教学信息、积累知识的主要信息资源并占据重要地位。为实现信息资源长期保存目标,提出加强纸质文献和数字资源的日常保护工作,在环境控制、图书脱酸、文献修复、载体转换、数字资源转存、灾难预案等多方面入手,建立完整的信息资源长期保存技术保障体系。最后,对图书馆开展信息资源长期保存提出3点建议。     

一起汽轮机推力瓦温度异常升高的事故分析

介绍了某135MW机组升负荷过程中出现的汽轮机正向推力瓦温度异常升高的事故过程,进行了原因分析,并提出了预防措施。     

从生态本位走向生态整体——影片《阿凡达》生态意识与审美内涵探析

生态整体主义是生态主义的核心,整生是生态系统的根本规律,也是生态系统健康发展的重要基础。影片《阿凡达》以超凡的想象与唯美的诗意,向人们展现了生态整体主义的内涵,对生态本位主义进行了深度思考,并且具有向生态整体主义回归的自觉,具有强烈的生态人文意识和生态审美内涵。     

浅议工程机械维修

工程机械管理与维修的目标就是要不断改善和提高设备管理与维修的水平,以最经济合理的寿命周期费用使设备维持良好的性能,保证工程施工的需要。从而促进施工企业提高生产效率和经济效益     

Farmers' Adoption of Soil Conservation Technologies: A Case Study from Osun State,Nigeria

Abstract

The main objective of this study was to determine the attitude of farmers towards erosion and the adoption of appropriate soil conservation technologies (SCTs). For the survey, farmers were selected from the communities Esa Oke, Elwure and Owode-Ede and Akoda in Osun State in Nigeria. In the first three communities farmers did receive training on soil conservation, in the fourth not. About 60 farmers were interviewed to obtain information on personal and socio-economic characteristics, awareness of environmental problems, attitude towards erosion control and experiences with SCTs. Statistical data analyses (analyses of frequencies, correlation, t-test, χ²-test) were made to examine possible relationships among parameters and the influence of factors on adoption.

Most respondents were advanced in years, responsible for large households and characterized by low levels of income and literacy. Soil erosion was seen as a problem confronting agricultural production only to a small extent. The adoption rate of SCTs was low, as only mulching, cover cropping, contour tillage and cut-off drainage were practised and often rejected. Low labour-demand, the availability of common equipment, low costs of application, ease of practice and compatibility with the existing farming system influenced adoption.

The observed positive correlation between level of education, knowledge of appropriate technologies, farming experience and the number of SCTs adopted emphasizes the importance for farmers of education and training. Strengthening agricultural extension agencies for capacity building is an important tool for improving soil conservation in Nigeria.

The paper clarifies with specific examples the causes of the low rates of adoption of available technologies, with a reduced impact of research and of efforts to achieve food security and sustainable production at village level.     

照明节能技术措施在学生宿舍电气设计中的应用

随着当前能源消耗迅速增长,进行电气节能设计显得尤为重要。本文探讨了我国建筑电气设计中的照明节能技术措施,结合成都航空职业技术学院学生宿舍照明工程实例进行了具体应用分析。     

基于SQL Server 2000数据库SA权限的安全性与防范的研究

Microsoft SQL Server是一个c/s模式的强大的关系型数据库管理系统,应用领域十分广泛.获取SQLServer 2000 SA权限,导致安装SQL Server 2000的计算机被远程控制,将对数据库和服务器带来很大的安全隐患.保障数据库的安全性是我们最关心的问题,将详细分析SQL Server 2000数据库SA权限安全性与防范问题进行的探索性研究.     

用机械能守恒定理分析三线摆的扭摆运动

利用机械能守恒定理得出三线摆的运动微分方程和积分方程,用MATLAB编程,分析了平动动能对振动周期的影响,并得出了三线摆中两个圆盘的半径与它们之间距离的制约关系。