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991.
由中华民族最深刻最全面的觉醒和动员所取得的时代性进步是全民族抗战取得胜利的基础。国民党和国民政府在抗日战争中起到了不可替代的作用。中国共产党对抗日战争的作用不是领导的作用,而是导向的作用。中国共产党的正确导向和正确的战略、策略是全民族抗战胜利的根本保证。 相似文献
992.
This paper identifies external factors affecting the capacity of Australia's now‐formalised 56 regional natural resource management (NRM) bodies and their community‐based Boards to meet planning and management responsibilities. It demonstrates that little is known about the basic capacity‐related characteristics of NRM regions, despite the lengthy and elaborate process of regionalism that Australia has embarked upon, with its associated and substantial devolution of responsibilities and resources. A suite of indicators is used to develop an ‘exploratory’ capacity typology of NRM regions. The ten regional ‘types’ identified are found to attract varying budget allocations under the Natural Heritage Trust Extension and National Action Plan for Salinity and Water Quality. There are indications that State and regional interests within and outside NRM can significantly influence the distribution of resources. An examination of resources allocated to capacity‐building activities shows significant differences between regions in the scale of resources allocated (0–96% of total budget). The paper argues the case for intervention to reduce the gap between ‘have’ and ‘have not’ regions, and for further exploration of disparities in the allocation of resources to capacity‐building activities. Clarification is needed of the extent to which capacity‐building activities adequately target regional NRM bodies and their Boards. 相似文献
993.
A total of 119 middle to late second millennium bce pottery samples from six sites in the Kur River Basin (Fars, Iran) were examined to characterize these ceramics and reconstruct their manufacturing technology and the origin of the primary materials. For this, a combined study of handheld XRF and thin‐section petrography was performed. The geochemical signatures of these ceramics were defined and interpreted in their archaeological and geological framework, resulting in the determination of different production processes and clay types used for four ceramic wares (Middle Elamite, Qaleh, Shogha and Taimuran) and the identification of possible outcrops used for Shogha–Taimuran production. 相似文献
994.
Y. Nishiaki O. Maeda T. Kannari M. Nagai E. Healey F. Guliyev S. Campbell 《Archaeometry》2019,61(4):765-782
This study presents a provenance analysis of the Neolithic obsidian assemblages from the early to mid‐sixth millennium bc settlement at Göytepe, Azerbaijan. The study is unique in that (1) it involves a complete, non‐selected obsidian assemblage (901 artefacts) from one particular area of the site; (2) the material is derived from a well‐stratified sequence of 10 securely radiocarbon‐dated architectural levels; and (3) the use of an extraordinarily wide range of sources (more than 20) was identified by provenance analysis using energy‐dispersive X‐ray fluorescence. The results reveal a previously unknown diachronic change in obsidian use in the region, suggesting the occurrence of significant socioeconomic changes during the Late Neolithic of the southern Caucasus. 相似文献
995.
在山东新泰周家庄东周时期的一墓葬中,出土了一把具有吴国兵器特征的青铜剑,在该剑的剑格内,发现了一薄层用于镶嵌固定各种形状绿松石的白色物质。为分析此物质,经傅立叶变换红外光谱(FTIR)分析表明,该白色物是一种具有饱和脂肪酸酯类结构和羧酸结构的混合物,与多种天然胶粘剂的标准红外光谱进行比较,结果显示样品的红外谱图与虫胶(漆片)的匹配度最高。同时用附带有能谱仪的扫描电镜(SEM-EDS)分析了该样品,结果表明样品不含元素氮,因而可排除蛋白质胶和生漆类等含氮的天然胶粘剂。 相似文献
996.
美国国家经济研究局(The National Bureau of Economic Research,简称NBER,又译美国国民经济研究局)成立于1920年,总部设在马萨诸塞州的波士顿市,是美国影响广泛的私立非盈利性学术研究组织。2003年,该机构破天荒地开设了中国经济研究项目组,至2007年 相似文献
997.
鄂尔多斯地区旅游资源配置与旅游发展增长极问题 总被引:4,自引:0,他引:4
从分析鄂尔多斯旅游资源的特点入手,探讨了其区域旅游资源配置问题,提出了变资源导向为市场导向、与旅游产品紧密相边、自然资源与人文资源互补和时空互补的四项资源配置原则,分析了该区域旅游资源配置的优势,按增长极理论选择成吉思汗陵为本区旅游发展的一个文化景观核和一个增长极。并分析了鄂尔多斯大漠风光及生态建设、建立人地和谐关系的优势与影响,认为恩格贝应是今后该地区旅游发展的另一增长极。最后讨论了旅游发展增长极的培育问题 相似文献
998.
Since the time of Descartes science has been influenced by the demand for precision and accuracy in research. In the 20th century also humanities began to submit to this demand. The term precision itself has a far‐reaching and historically grown semantics. As a consequence of the attempt to answer precisely and irrefutably to scientific questions, achieved knowledge today is only valid for an increasingly narrow range. 相似文献
999.
信息通讯技术(ICT)已成为现代城市发展的重要推动力,对城市居民空间行为产生了深刻影响。本文在对国内外相关文献梳理的基础上,从城镇化、城镇体系、城市活动空间、虚拟空间与实体空间、智慧城市等方面对ICT与城市地理领域的关联性研究进行了综述。研究发现,ICT通过促进产业结构高级化协同城镇化发展,通过改变流动性、邻近性改变城镇体系与城市空间结构。同时基于虚拟空间—实体空间,构建信息通讯技术背景下城市空间与居民空间行为作用机制。在新型城镇化背景下,基于微观尺度聚焦居民个人空间行为的研究亟待开展,空间正义、社会公平、区域发展均衡等议题亟待关注,融合信息通讯技术的城市空间理论亟待发展。 相似文献
1000.
Microchemical analysis of minerals present in pottery and stone artefacts may help determine their provenance. Electron microprobe major element analyses of augite suggest that minor elements (Ti02,MnO, Aa2O) are important in fingerprinting basalts. This points to the potential usefulness of trace elements. Augite present in six basalt samples (representing all known/suspected Pharaonic basalt quarries in northern and middle Egypt) and basaltic temper fragments in two New Kingdom pottery sherds was analysed for 28 trace elements (Sr, Ba, Th, U, Zr, Hf, Nb, Ta, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu. Sc, V, Cr, Ni, Ga) by laser ablation microprobe-inductively coupled plasma-mass spectrometry (LAM-ICP-MS, laserprobe). Cluster and discriminant analysis indicate that (1) laserprobe trace element data are more effective at fingerprinting basalts than conventional electron-microprobe data and (2) basaltic temper in the two sherds does not match any of the quarries. Microbeam techniques providing trace element data may represent the future for mineral-based provenance studies. 相似文献