以人为本与高校图书馆服务理念的确立

高等院校的图书馆在新时期应体现以人为本的服务理念,只有这样才能使图书馆高等教育中发挥更大的作用。     

Mechanical model and computational analysis of pipeline plastic failure under radial load

When large damage, such as rupture and leakage, occurs in buried pipeline, a steel pipeline extrusion throttle device is applied to crush the pipeline and block the oil flow quickly in a short time. An extrusion model under uniformly distributed radial load is established based on the theory of plastic deformation and the principle of virtual work. The pipeline plastic deformation is analyzed and computed and the pipeline extruding load is obtained. The extrusion of X60 steel tube of 325 mm diameter and 6 mm thickness loaded by indenter of 18 mm width is examined. The load-deformation curve of pipeline extrusion is obtained. The results of the comparison between experimental data and theoretical data show that the model is in good agreement with the experiment. This model can be used to calculate the extruding load of pipelines of different sizes and provide the theoretical and practical reference for urgent repair of pipeline leakage.     

基于新农村建设的高校图书馆公共文化服务体系构建研究

阐述了公共文化服务体系构建的内涵及宗旨,分析了农村公共文化服务建设中存在的问题,探讨了高校图书馆在新农村公共文化服务体系构建中的相应举措。     

Study on Single-chip Computer Control Systems in Miniature Water Works

In order to enhance automation and to design low price and performance reliable control systems for the miniature water works, the single-chip computer control system was adopted to control the work. The single chip computer control system in the miniature water works, the principle of the hardware and a part of software block diagram were discussed in this paper. Finally, the data acquisition and control network were introduced.     

粮食企业信息化建设解决方案探究

分析了我国大多数粮食企业在管理方面存在的问题，明确了实行信息化管理的必要性，进而从网络管理软件的开发、网络系统的建设几个方面详尽阐述了粮食企业信息化建设的解决方案。     

高等农业院校青年教师成长之我见

本从自身实际出发,论述了新时期青年教师成长过程中面临的问题及建议,以期有利于青年教师工作质量的提高,明确肩负的责任,更好地投入到教学和科研中。     

Assessing the costs of land degradation: a case study for the Puentes catchment,southeast Spain

Whereas many studies point out the economic benefits of controlling land degradation through sustainable land management (SLM) approaches, there is often a lack of local adoption of SLM techniques. Analysis of the local impacts and costs of land degradation is critical for understanding farmers' responses to land degradation. The objective of this paper is to analyse the local costs of land degradation in the Puentes catchment in southeast Spain. This catchment has been identified as particularly vulnerable to erosion, yet farmers show a general lack of interest in applying erosion control techniques. The paper subsequently analyses land degradation processes in the Puentes catchment, the income derived from agriculture and several other ecosystem services, and the local costs of land degradation. Erosion is widespread in the catchment, comprising sheet and rill erosion as well as gulley erosion. Relatively high erosion rates are encountered in cropland. The most important source of local income is irrigated agriculture, with revenues of up to €1350/ha y⁻¹. Dryland agriculture, hunting and herding provide additional income. The costs of erosion on cropland, calculated with a replacement method, vary from around €5/ha y⁻¹ on slopes between five per cent and ten per cent, to around €50/ha y⁻¹ on slopes between 30 per cent and 50 per cent. Except on the steepest slopes, these costs are relatively low for the farmers, which explains the limited application of erosion control techniques in the catchment. Copyright © 2007 John Wiley & Sons, Ltd.     

海南岛生态系统土壤保持功能空间特征及影响因素

土壤保持是生态系统提供的重要调节服务之一,在区域侵蚀控制以及生态安全的维持方面具有不可替代的作用.以基于生态系统服务价值化和权衡得失综合评价工具InVEST,对海南岛生态系统土壤保持功能的空间特征及其影响因素进行了分析与探讨.结果表明:(1)海南岛土壤保持总量为8.16×108 t,平均单位面积土壤保持量为247.28 t·hm-2·a-1,空间上呈现中部高四周低的分布格局,中部山区国家级生态功能保护区在土壤保持功能的保育方面发挥着重要作用;(2)不同生态系统类型的土壤保持功能从大到小依次为:灌丛＞天然林＞草地＞橡胶林＞浆纸林＞热作园＞水田＞旱地＞红树林＞防护林,自然生态系统整体优于人工生态系统;(3)除自然因素外,经济发展、人口增长以及农田扩张都是影响土壤保持功能的重要因素,其中单位面积地区生产总值、单位面积第一产业生产总值、人口密度以及农田比例与单位面积土壤保持量显著负相关(P＜0.05),橡胶林比例与土壤侵蚀强度显著正相关(P＜0.01),说明海南岛的经济发展与人口增长会削弱生态系统土壤保持功能,应权衡它们之间的关系,探索一条发展经济与保护生态系统土壤保持功能并举的可持续发展之路.     

校企文化和特色教学在培养人才中的作用

职业教育突出的是职业两字,以职业技能培养为核心,是为企业培养有职业能力,符合企业用人要求的高素质的技能型人才,学校是通过各种教育、教学方式、方法、手段来达到为企业培养人才的目的。企业为了生存及发展,注重内涵建设,其管理有自己的人文特色,形成自己的文化特征,学校是学习知识、培养能力的场所,在教育的过程中,注重素质的培养,能力的学习,两者的目标应该是一致的,两者的衔接应该是无缝的,学校培养的应该是企业需要的人才,企业的需求应该是学校的目标,所以两者的文化相融,信息相通,开展具有双方共同参与的职业教育,才能更好地为企业培养有用之才。     

关于建立湖北省稻瘟病抗性研究与利用规范的建议

分析了湖北省水稻稻瘟病抗性研究与利用工作中存在的主要问题,提出了建立水稻品种抗瘟性研究与利用工作规范的建议,以达到提高抗病育种水平、完善品种合理布局、保护病区水稻生产安全、促进非病区优质品种推广的目的.