乡村社区旅游生计代际传承的过程及影响因素——以栾川县重渡村为例

在乡村振兴背景下,旅游生计成为乡村可持续发展的重要议题,但与之相关的研究较为匮乏。文章以栾川县重渡村为案例地,通过对亲代和子代进行半结构化访谈,探讨旅游生计代际传承的过程及其主要影响因素。研究发现：(1)旅游生计的代际传承经历了亲代生计开拓、子代培养和发展、共同经营、生计传承四个阶段,并与重渡村这一乡村旅游目的地起步、培育、快速发展、规范管理的生命周期相适应。(2)文化因素、主体因素和规制压力是影响生计传承的主要原因。(3)旅游生计的代际传承关乎乡村旅游的可持续发展和乡村振兴战略的有效实施,相关问题值得进一步探索和研究。     

DEM Algorithm for Progressive Collapse Simulation of Single-Layer Reticulated Domes under Multi-Support Excitation

In this paper, the Member Discrete Element Method (MDEM) is modified and perfected for three aspects: the algorithm itself, loading and computational efficiency, and to accurately and quantitatively simulate the progressive collapse for large-span spatial steel structures. In addition, the corresponding computational programs are compiled. First, from the perspective of the method, a meshing principle for discrete element models is determined, a treatment for material nonlinearity and strain rate effect is proposed, and a damping model is established. Next, the Displacement Method is introduced to determine the multi-support excitation for the MDEM, and then motion equations of particles under multi-support excitation are derived. On this basis, the specific process of gravitational field loading is presented. Furthermore, parallel implementation strategies for the MDEM based on OpenMP are constructed. Finally, the collapse simulation of a 1/3.5-scaled single-layer reticulated dome shaking table test model under multi-support excitation is carried out. The comparison demonstrates that the ultimate load and failure mode as well as the complete collapse time of the numerical results are consistent with the experimentally measured responses, and the configuration variations from member buckling and local depression until collapse failure are fully captured. Moreover, the displacement time-history curves obtained using MDEM are almost identical to the experimental measurements, and there is a nuance only in the amplitude. It is verified that MDEM is capable of precisely addressing the collapse failure for large-span spatial steel structures. Additionally, the failure mechanism for structures of this type is naturally revealed.     

略论抗日战争时期的澳门

澳门的命运始终与祖国休戚相关,抗日战争时期澳门虽未被日军占领,但也同样历经了日本掠夺的苦难,同时在抗战中起到了积极的作用。澳门战略地位之重要与香港一样,世人皆知。它是中国通往世界的南大门,也是东西方各国和东南亚各国的交通要道。由于澳门一直未被日军占领,它在中国的抗日战争期间曾发挥过积极和有力的作用。第一,澳门民众积极声援和直接参加抗击日本侵略者的斗争。早在“九一八”事变后,澳门同胞就以“救灾”的名义投入神圣的抗日救国运动。后来在抗日战场上血洒长空的林耀等即是在此时返回内地,进入航空学校的。澳门同…     

VARIABILITY OF THE CHARACTERISTICS OF WEATHER AND CLIMATE OF THE CENTRAL ECONOMIC REGION

Basic climatic elements and factors of climate formation in the Central Economic Region are assessed with a view toward improving methods of short-term forecasting. More specifically, analysis of the spatial variation of radiation, evaporation, and turbulent heat transfer, patterns of the most economically significant climatic elements; and trends in temperature and precipitation relative to long-term means sets the stage for a discussion of problems in forecasting the length of the heating season and in predicting precipitation anomalies one year into the future (translated by Andrew R. Bond).     

关于民族文物的几点认识

民族文物是人类文化遗产的重要组成部分,是反映古代不同社会形态以及生产、生活状况的活化石.它填补了史籍记载的缺失和田野考古的不足,为人类社会发展史研究提供了珍贵的实物资料,在科学研究、发展旅游业、繁荣民族经济等方面具有重要价值.民族文物是中华民族的珍贵遗产,应及时抢救保护.     

封开，岭南文化的发祥地

本想在封开只做短暂的停留,看看杨池古村就走,到了封开,竟就由不得想赖在那儿。 一个偏远山区的小城,文化根底异乎寻常的厚,岭南文化的发祥地,陆、海丝绸之路的连接点,“北 风”、“海浪”会冲地,北回归线上奇异的国家地质公园,哪一项都让人牵肠挂肚。在张九龄开通梅岭 古道以前,这里因水路交通的便捷在唐以前兴蛊了一千多年。     

论碧霞元君信仰的起源

泰山碧霞元君是中国历史上影响最大的女神之一,尤其是明清以来,她在民间的影响已经大大超过了泰山主神东岳大帝,以至于当时的文人士子对碧霞元君势力     

沈阳故宫藏牙角器赏析

沈阳故宫藏有明代犀角雕玉兰花杯、犀角镂雕梅花杯、清代染角透雕人物船、兽骨镂空花翎折扇、牙雕巧工葫芦、牙雕草蝶形盘、贝浮雕鱼等精美的雕刻艺术品。当这些雕刻艺术与清官的陈设品相结合之后,它的辉煌又在木质光华中闪耀。     

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     

中日建筑民俗比较研究

日本的建筑,包括城池、庙宇和民居,都深受中国的影响,京都、奈良就是按古长安的模式建造的,连平城京宫的12道门,均取长安城门之名命之;特别是建筑风俗的理念,基本上是中国风水理论的演绎,五行四象布局被普遍认同。日本明治维新以后,由于工业社会的影响和西方文化的冲击,人们在接受中国传统思想的同时,又企图以现代科学的方法加以实证,使这些传统变得更加理性和严谨。而中国的建筑民俗,一方面由于统治思想的打压,被视为“封建迷信”,潜流于乡间和底层社会;另一方面主流社会为适应政治经济和观光旅游的需要,变换形式加以炒作,使其功利目的更为彰显,双方都在按各自的套路发展。