环渤海区域土地利用景观格局变化分析

利用环渤海区域1985年、1995年和2000年3期TM卫星遥感解译数据,在GIS和景观格局分析软件支持下,对该区域1985年~2000年的土地利用景观格局及其变化进行了模拟分析。结果表明: 耕地是区域主导的景观类型,1985年、1995年和2000年耕地分别占景观类型总面积的55.96%、53.70%和55.64%;林地、建设用地是区域优势景观类型,林地分别占景观类型总面积的21.12%、22.13%和20.95%,建设用地分别占景观类型总面积的10.48%、11.83%和11.70%;1985年~1995年、1995年~2000年两个时期,林地和建设用地景观的变化趋势是先增加后减少,与耕地景观变化趋势正好相反,在一定程度上反映了耕地与林地、建设用地景观类型之间的互动转换关系;两个时段土地利用景观斑块数、斑块密度、边界密度、多样性指数、聚集度和均匀度指数的变化表现为先增后减的过程,分维数、蔓延度指数和分离度的变化呈现出先减后增的过程。1985年~2000年土地利用景观斑块数、分维数、多样性指数、分离度和均匀度指数处于降低趋势,而斑块密度、边界密度、蔓延度和聚集度指数呈现出增大趋势,反映了该区域内土地利用景观类型之间存在较大差异,各组分的复杂性降低,大斑块增多,各景观之间的不均匀性增大,不稳定性增强。     

加强电力工程造价管理

工程造价的管理和控制是一项系统工程,对电力工程造价管理在可研阶段、设计阶段、施工阶段和工程结算阶段存在的问题进行了详细地分析,并提出了相应的对策以求实现有效的价格控制,为社会供给质优价廉的电力。     

基于和谐思想的教育管理美学初探

教育管理凸现文化转向,研究教育管理美学既是现代管理实践对管理哲学发展的要求,也是现代美学从思辨走向实践的必然趋势。和谐思想是教育管理美学构建的基石,和谐教育管理美学有管理的智慧、美学的飘逸、利与美的双赢三个特点。在根据教育管理美学研究模型分析如何进行和谐教育管理活动后,分析了和谐教育管理美学价值的三个基本思路。     

复杂地质条件下均衡生产与安全管理研究

均衡生产是衡量一个企业生产管理水平高低的一个标准。翟镇煤矿随着矿井采场不断延伸,对矿井的安全生产有很大影响,该矿不断调整管理思路,从管理制度和现场管理入手,实施了安全自主管理、机电事故向零进军等措施,现场管理实施完善了正规循环作业、写实管理、系统优化、技术创新等方面,改变了重生产轻安全、轻质量的现象,不断完善了均衡管理思路,形成了一整套系统的安全生产管理模式,为矿井各项目标的完成打下了坚实基础。     

The intra-firm diffusion of complementary innovations: Evidence from the adoption of management practices by British establishments

This paper presents a simple profitability-based decision model to show how synergistic gains generated by the joint adoption of complementary innovations may influence the firm's adoption decision. For this purpose a weighted index of intra-firm diffusion is built to investigate empirically the drivers of the intensity of joint use of a set of complementary innovations. The findings indicate that establishment size, ownership structure and product market concentration are important determinants of the intensity of use. Interestingly, the factors that affect the extent of use of technological innovations do also affect that of clusters of management practices. However, they can explain only part of the heterogeneity of the benefits from joint use.     

Significant threads: The nature of data

In a previous paper we used the backdrop of the Inca Empire for consideration of an appropriate locus for the discipline of informatics. The term informatics is used as a convenient umbrella term to stand for the overlapping disciplinary areas of Information Systems, Information Management and Information Technology. In this paper we consider one element from this case in more detail: that of the quipu. This enigmatic group of artefacts, consisting of complex assemblages of knotted cord, has been the subject of much debate. In this paper we interpret the case of the quipu as a non-familiar example of a data structure. This interpretation allows us to propose a number of essential or universal characteristics of data. It also permits us to provide greater clarity to the distinction between data and information.     

Effective top-k computation with term-proximity support

Modern web search engines are expected to return the top-k results efficiently. Although many dynamic index pruning strategies have been proposed for efficient top-k computation, most of them are prone to ignoring some especially important factors in ranking functions, such as term-proximity (the distance relationship between query terms in a document). In our recent work [Zhu, M., Shi, S., Li, M., & Wen, J. (2007). Effective top-k computation in retrieving structured documents with term-proximity support. In Proceedings of 16th CIKM conference (pp. 771–780)], we demonstrated that, when term-proximity is incorporated into ranking functions, most existing index structures and top-k strategies become quite inefficient. To solve this problem, we built the inverted index based on web page structure and proposed the query processing strategies accordingly. The experimental results indicate that the proposed index structures and query processing strategies significantly improve the top-k efficiency. In this paper, we study the possibility of adopting additional techniques to further improve top-k computation efficiency. We propose a Proximity-Probe Heuristic to make our top-k algorithms more efficient. We also test the efficiency of our approaches on various settings (linear or non-linear ranking functions, exact or approximate top-k processing, etc.).     

基于资源运营指标体系的竞争优势研究

针对资源基础理论和动态能力理论分析竞争优势的研究缺乏解释性框架问题,基于M ICK-4FI资源分类研究,创建了资源和能力生成竞争优势过程的三层次指标体系,利用逆向分解思维进行企业诊断工具开发。     

工程监理保险的资产负债管理

首先介绍了ALM产生的背景及其发展,然后对ALM模型进行了相关论证。考虑到中国保险业投资渠道的发展现状和工程监理保险实务,在此基础上最终建立起了ALM模型。     

湖南省高校体育教育人力资源的开发与管理研究

基于人力资源开发与管理理论,通过文献收集、现场调研、问卷调查、数理统计与对比分析等科研方法,在深入讨论湖南省部分高校体育教育人力资源开发与管理现状的基础上,剖析湖南省高校体育教育人力资源管理、开发和利用效率中存在的主要问题。以提高高校体育教育人力资源的深度和广度为主要目标,研究科学配置与合理开发湖南省高校体育教育人力资源的可行性及主要途径。