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901.
Izhak Schnell 《GeoJournal》2001,53(3):221-234
The transition to globalization, socio-cultural fragmentation and an era of peace all constrain Zionism to a restructuring in its territorial perspectives. In the nation-building era, Zionism made the territory the focus of Zionist activity, which necessitated seizing territory, controlling it, and creating an affinity and attachment and a bond of identity between the nation and the territory. Pure colonization as a central strategy for realizing these national goals originated mainly from the unique historical circumstances of Zionism and from the adoption of an ethno-national ideology. This also led to the Palestinian-Jewish conflict that concentrated on the control of territory. The national economy regime that influenced Israel in different ways also served the territorial ideology to a great degree. Peace borders will require Israel to cooperate closely with Jordan, Palestine, Syria and Lebanon in managing resources, external influences and additional common interests. The peace economy will integrate with the multi-national economy. Furthermore, in the reality of peace, Israel will have to abandon the internal colonization of areas populated by Israeli Arab citizens and give greater legitimation to their more prominent inclusion the Israeli identity. It will also become difficult for any elite group to dictate the national agenda to other marginal groups, such as Israeli Arabs, and Sephardic or Orthodox Jews, each group creates for itself considerable degree of autonomy in its own territory. In the main, the national periphery divides into an Israeli Arab periphery beside the periphery of the traditionally religious Sephardic Jews. The ultra-Orthodox Jews take control of increasingly larger Israeli space and expanding the horizons of their public involvement beyond their traditional ghettos. Each group creates for itself a different symbolic space with differing views concerning the limits of Israeli sovereignty.  相似文献   
902.
In this paper, the attractors of turbulent flows in phase space are reconstructed by the time delay technique using observed data of atmospheric boundary-layer turbulence, which include high resolution temperature, humidity andthree-dimensional wind speed measurements in Gansu province and Beijing, China. The correlation dimensions and largest Lyapunov exponents have been computed. The results indicate that all the largest Lyapunov exponents in different conditions of time, site and atmospheric stability are greater than zero. This means that the atmospheric boundary-layer turbulence system is really chaotic and has appropriate low-dimensional strange attractors whose dimension numbers range from 3 to 7 and vary with different variables (dynamical variables or non-dynamical variables) and atmospheric stability. Turbulent kinetic energy is first applied to reconstruct the attractor of turbulence, and is found to be feasible.  相似文献   
903.
根据近几年新疆强震活动的格局变化以及地震活动的时空分布,结合新疆几次7级地震前的异常特征进行综合分析,认为未来几年新疆地震活动将处于一组强烈地震之后的相对平静,但仍然有发生6级地震的可能。  相似文献   
904.
根据地震活动特征、大武地震台尾波持续时间及长宁、湟源和西宁3个台水氡异常变化,讨论了1999年河南Ms5.1和玛沁Ms5.0地震发生后库玛断裂带的地震活动趋势,结果表明,河南-玛沁地区的中强地震活动与库玛断裂带上的强震活动有明显的对应关系;在库玛断裂带中东段存在一个由ML≥3.0地震围成的空区;上述2次地震发生后大武地震台尾波持续时间异常依然存在,长宁、湟源和西宁台水氡趋势异常仍然持续,据此认为库玛断裂带存在发生强震的背景。  相似文献   
905.
This paper investigates the nonlinear prediction of monthly rainfall time series which consists of phase space con-tinuation of one-dimensional sequence, followed by least-square determination of the coefficients for the terms of the time-lag differential equation model and then fitting of the prognostic expression is made to 1951-1980 monthly rainfall datasets from Changsha station Results show that the model is likely to describe the nonlinearity of the an-nual cycle of precipitation on a monthly basis and to provide a basis for flood prevention and drought combating for the wet season.  相似文献   
906.
本文以地磁场的空间相关性为物理依据,以测点间测值线性回归方程的显著程度,为测点测值的质量检验标准,采用方差分析和相关系数法,以月为时段,分别计算了省内1992年1至10月,10个地磁台站的F,r,S检验结果。结果表明,两种方法的检验效果相似。而方差分析法,在分辨率和准确性方面,明显优于相关系数法。按计算时段,选取标准台的办法,利于克服单一标准台的不足和空间磁场差异性变化对测点测值质量评估的影响。  相似文献   
907.
从屏幕色到印刷的转换方法朱元泓。是,人们感到头痛的是屏。的效果。为了达到理想的印刷色土要进行多次重复尝试(从修改荧光屏,浪费材料,特别是多色地图电子复制设计A屏幕色转换为印刷色的新方法,即逆解组纶堡方d值修正法,并说明两种方法可达到的精度。j色通过红...  相似文献   
908.
郭卫东  罗谷风 《地质论评》1995,41(4):311-319
谢窦克等曾测定了大别山一个绿辉石的晶体结构,认为它具P2/c空间群;四面体链分别呈SA和OB扭转;M阳离子日位全部为6次配位的八面体:Al在所有这四种晶位另均有相当多的占有率,为绿辉石的新型结构。本文对该资料再研究后确认其真实空间群为P2/n;结构中仅有一种O旋转的四面体链;M2和M2晶位为8次配位;Al全部进入M1(1)晶位,Al-Mg呈完全有序分布,属典型的P2/n有序绿辉石。本文给出了重新计  相似文献   
909.
旅游区游憩活动地域组合研究   总被引:23,自引:3,他引:20  
吴承照 《地理科学》1999,19(5):436-441
针对市场导向的旅游开发战略与旅游地规划设计的整合问题,从游憩角度探讨解决这一问题的方法和技术,论文分析了游憩需求与游憩活动,设施和环境之间的相互关系,认为旅游地是由游憩活动,设施和环境及其支持系统旅游地规划的中心内容是游憩规划,游憩活动地域组合具有4种类型,3种模式。  相似文献   
910.
ABSTRACT

Geovisualisation is a knowledge-intensive art in which both providers and users need to possess a wide range of knowledge. Current syntactic approaches to presenting visualisation information lack semantics on the one hand, and on the other hand are too bespoke. Such limitations impede the transfer, interpretation, and reuse of the geovisualisation knowledge. In this paper, we propose a knowledge-based approach to formally represent geovisualisation knowledge in a semantically-enriched and machine-readable manner using Semantic Web technologies. Specifically, we represent knowledge regarding cartographic scale, data portrayal and geometry source, which are three key aspects of geovisualisation in the contemporary web mapping era, coupling ontologies and semantic rules. The knowledge base enables inference for deriving the corresponding geometries and portrayals for visualisation under different conditions. A prototype system is developed in which geospatial linked data are used as underlying data, and some geovisualisation knowledge is formalised into a knowledge base to visualise the data and provide rich semantics to users. The proposed approach can partially form the foundation for the vision of web of knowledge for geovisualisation.  相似文献   
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