The central government's regulations on the sale and purchase of horses in the Land within the Passes(Guanzhong關中)and their entry and exit from the Pass in the“Ordinances on Fords and Passes”(Jinguan ling津關...The central government's regulations on the sale and purchase of horses in the Land within the Passes(Guanzhong關中)and their entry and exit from the Pass in the“Ordinances on Fords and Passes”(Jinguan ling津關令)are important sources for understanding the horse policy of the early Western Han Dynasty and recognizing the relationship between the dynasty and the counties and vassal states outside the Pass.By examining the ordinances on the purchase and sale of horses,it is clear that the Han state strictly controlled horses,restricted private ownership of horses,and prohibited horses from exiting the Pass.However,some"privileged classes"still had the right to purchase horses from the Han government and take them out of the Pass after following some legal procedures,but this privilege was entirely dependent on the imperial power.Behind these regulations,it reflects the legislative thought of the supremacy of imperial power,"power over law"(“權大于法”),and the fundamental purpose of consolidating centralized power,weakening the strength of vassal states,and"strengthening the central forces while weakening the local ones"(“强幹弱枝”).展开更多
据估计,我国的页岩气可采储量高达20万亿～36万亿m3,虽然我国页岩气储量评估处于初级阶段,但仍然可以肯定我国是页岩气资源丰富的国家之一,如果都能开发,按当前的天然气年产量计算,可以开发200多年。目前国内外多家企业聚焦中国,逐鹿页...据估计,我国的页岩气可采储量高达20万亿～36万亿m3,虽然我国页岩气储量评估处于初级阶段,但仍然可以肯定我国是页岩气资源丰富的国家之一,如果都能开发,按当前的天然气年产量计算,可以开发200多年。目前国内外多家企业聚焦中国,逐鹿页岩气,页岩气有望成为我国常规能源替代品,页岩气的勘探开发必将对我国乃至世界能源格局产生重大影响。但是由于页岩气储层致密,渗透率低至纳达西级,若不采取特殊的增产措施难以实现商业开发。美国是目前唯一实现页岩气商业开采的国家,技术和商业模式都相当成熟,中海石油斥资10多亿美元收购了美国页岩气主产区Eagle Ford 33.3%的股份,该地区页岩气地质储量高达6 000亿m3,开发前景广阔。为提升我国页岩气总体水平,笔者率领技术专家深入考察了美国Eagle Ford页岩气项目,增进了对水平钻井与分段压裂等关键技术的了解,同时分析了相应扶持政策,对中国页岩气的勘探开发具有重要的参考价值。展开更多
Debate on whether American Southern Literature still exists in the postmodern era poses a hot topic in contemporary literary world. Among the many southern-born writers, Richard Ford publicly denied to be labeled as a...Debate on whether American Southern Literature still exists in the postmodern era poses a hot topic in contemporary literary world. Among the many southern-born writers, Richard Ford publicly denied to be labeled as a southern writer. The author of this paper holds a close study of how time and place, two major traditional southern themes are treated in Richard Ford's Sportswriter, and draws the conclusion that despite the southern staples embedded in the novel, Richard Ford, as a representative of postmodern writers, works for a national or even universal writing by successfully fusing southern tradition and postmodern temper in a crossroad of history.展开更多
文摘The central government's regulations on the sale and purchase of horses in the Land within the Passes(Guanzhong關中)and their entry and exit from the Pass in the“Ordinances on Fords and Passes”(Jinguan ling津關令)are important sources for understanding the horse policy of the early Western Han Dynasty and recognizing the relationship between the dynasty and the counties and vassal states outside the Pass.By examining the ordinances on the purchase and sale of horses,it is clear that the Han state strictly controlled horses,restricted private ownership of horses,and prohibited horses from exiting the Pass.However,some"privileged classes"still had the right to purchase horses from the Han government and take them out of the Pass after following some legal procedures,but this privilege was entirely dependent on the imperial power.Behind these regulations,it reflects the legislative thought of the supremacy of imperial power,"power over law"(“權大于法”),and the fundamental purpose of consolidating centralized power,weakening the strength of vassal states,and"strengthening the central forces while weakening the local ones"(“强幹弱枝”).
文摘据估计,我国的页岩气可采储量高达20万亿～36万亿m3,虽然我国页岩气储量评估处于初级阶段,但仍然可以肯定我国是页岩气资源丰富的国家之一,如果都能开发,按当前的天然气年产量计算,可以开发200多年。目前国内外多家企业聚焦中国,逐鹿页岩气,页岩气有望成为我国常规能源替代品,页岩气的勘探开发必将对我国乃至世界能源格局产生重大影响。但是由于页岩气储层致密,渗透率低至纳达西级,若不采取特殊的增产措施难以实现商业开发。美国是目前唯一实现页岩气商业开采的国家,技术和商业模式都相当成熟,中海石油斥资10多亿美元收购了美国页岩气主产区Eagle Ford 33.3%的股份,该地区页岩气地质储量高达6 000亿m3,开发前景广阔。为提升我国页岩气总体水平,笔者率领技术专家深入考察了美国Eagle Ford页岩气项目,增进了对水平钻井与分段压裂等关键技术的了解,同时分析了相应扶持政策,对中国页岩气的勘探开发具有重要的参考价值。
文摘Debate on whether American Southern Literature still exists in the postmodern era poses a hot topic in contemporary literary world. Among the many southern-born writers, Richard Ford publicly denied to be labeled as a southern writer. The author of this paper holds a close study of how time and place, two major traditional southern themes are treated in Richard Ford's Sportswriter, and draws the conclusion that despite the southern staples embedded in the novel, Richard Ford, as a representative of postmodern writers, works for a national or even universal writing by successfully fusing southern tradition and postmodern temper in a crossroad of history.
