Pore pressure evolution and fluid flow during visco‐elastic single‐layer buckle folding

Pore pressure and fluid flow during the deformational history of geologic structures are directly influenced by tectonic deformation events. In this contribution, 2D plane strain finite element analysis is used to study the influence of different permeability distributions on the pore pressure field and associated flow regimes during the evolution of visco‐elastic single‐layer buckle folds. The buckling‐induced fluid flow regimes indicate that flow directions and, to a lesser degree, their magnitudes vary significantly throughout the deformation and as a function of the stratigraphic permeability distribution. The modelling results suggest that the volumetric strain and the permeability distribution significantly affect the resulting flow regime at different stages of fold development. For homogeneous permeability models (k > 10^?21 m²), low strain results in a mostly pervasive fluid flow regime and is in agreement with previous studies. For larger strain conditions, fluid focusing occurs in the buckling layer towards the top of the fold hinge. For low permeabilities (<10^?21 m²), local focused flow regimes inside the buckling layer emerge throughout the deformation history. For models featuring a low‐permeability layer embedded in a high‐permeability matrix or sandwiched between high‐permeability layers, focused flow regimes inside the folded layer result throughout the deformation history, but with significant differences in the flow vectors of the surrounding layers. Fluid flow vectors induced by the fold can result in different, even reversed, directions depending on the amount of strain. In summary, fluid flow regimes during single‐layer buckling can change from pervasive to focused and fluid flow vectors can be opposite at different strain levels, that is the flow vectors change significantly through time. Thus, a complete understanding of fluid flow regimes associated with single‐layer buckle folds requires consideration of the complete deformation history of the fold.     

中国对日、韩、越三国科举的影响

China’s imperial examinations greatly influenced the East Asian world. Japan imitated it during the eighth to tenth centuries; its subjects include xiucai, mingjing, jinshi, mingfa, as well as medicine and acupuncture. Korean imperial examinations are the longest and most comprehensive ones among other East Asian countries. Vietnam was the last to abolish the imperial examinations. All three East Asian countries imitated China in their imperial examinations, which greatly raised their cultural levels. Translated by Yang Chunyan from Xueshu Yuekan 学术月刊 (Academic Monthly), 2006, (12): 136–142     

法老时代的埃及妇女在家庭中的地位

Although many scholars have assert that the Egyptian women’s position in the family was high during the time of the Pharaohs, no research in China has made a comprehensive and systematic discussion over this issue so far. Based on both documents and archaeological materials, this article approaches this question in three aspects: (1) Egyptian women’s position in the family economy; (2) the affection between the husband and the wife; (3) the position and role of the mother. __________ Translated from Shijie Lishi 世界历史 (World History), 2004, (2): 11–20     

关于区位论发展的探讨

本文分析了西方区位理论的发展历程,论述了我国区位论的研究现状,并提出了区位论对完善地理学理论、拓宽实践领域的重要意义,以及区位论研究中存在的问题。     

论浦东新区的社区分化——整合运动的特征及其发展趋势

社区是一定地域人们生活的共同体,社区建设是维护社会稳定和社会经济可持续发展的重要环节。浦东开发是中国二十一世纪"龙头"城市建设工程,浦东新区社区建设不仅是浦东开发开放顺利进行的保障,也必将在全国产生积极的示范效应。本文从时代背景到地域发展纵深透视我国社区及浦东新区社区建设的兴起,并运用社区分化-整合系统分析理论对当前及今后浦东新区社区及其分化-整合运动进行剖析,提出五点调整完善浦东新区社区整合模式的建议。     

地缘政治学理论、方法与九十年代的地缘政治学

本文介绍了地缘政治学家关于地缘政治学学科的不同定义;探讨了不同层次地缘政治学研究的核心概念和研究方法论,分析了长期存在的学科内涵争论;探索了九十年代地缘政治学新的研究领域和发展方向:旨在推动我国地理学家参与国家和全球的地缘政治,地缘战略研究,繁荣和发展我国人文地理学的学科体系。     

古村落——独特的人居文化空间

本文认为,中国聚落中的古村落,作为一种传统的人居空间,有着它独特的人居文化思想。一是贴近自然、融于山水,有着以"山为骨架,水为血脉"的环境构想;二是受"世外桃源"居住模式的影响,使追求恬淡、抒情风格的村居生活逐渐成为人们的向往;三是注重血缘,聚族而居,因此礼制秩序和睦族之风表现明显。以古村落为实例的"人居文化学"研究是对当前日益兴起的"人居环境学"研究的重要补充。     

文化力与综合国力关系研究

本文从系统论角度分析界定了综合国力的概念,指出文化力是综合国力的动力源,并阐明了大力发展文化力是综合国力可持续发展的关键所在。     

宋瓷上的乾隆题诗

乾隆喜欢作诗,他的诗或题写在当朝烧制的御用瓷器上,或镌刻于宫廷秘藏的历代名窑珍品上。传世宋瓷为乾隆赏悦之物,故而往往不忘对此书上一笔。