“二里头五期”遗存分析及其相关问题

所谓“二里头五期”遗存,实质上是包含了不同年代、不同时期遗存的混合体,化性质与二里头化—至四期不同,属早商化。二里头二号宫殿的废弃、偃师商城小城之始建以及郑州商城开始进入最繁盛期的时间大体同步,均是在二里头四期(或先商第一段第Ⅱ组)与早商第二段第Ⅲ组之际,表明夏商分界当在此时。     

科默·V·伍德沃德与美国南部史学

科默·V.伍德沃德在美国是享有盛誉的南部史专家,同时也是一位非常活跃的社会活动家。在长期的学术实践中他形成了注重史学的社会功能、强调历史发展的非连续性和善用反讽的史学研究风格。他以自己对美国南部历史与现实的深切关怀,积极推动了南部史的研究。其贡献既表现在对新的史学领域和问题的开拓,也体现在围绕他的著述所展开的学术商榷、学术批评中,以及由此而形成的良性的学术研究氛围上。     

顾维钧与美台关于沿海岛屿的交涉 (1954.12～1955.2)

《共同防御条约》签署后,台湾当局与美国围绕如何处置大陈及金门、马祖等岛屿展开了新一轮交涉,由于立场不同双方出现了分歧和矛盾。顾维钧在这一交涉中扮演了重要角色,他与蒋介石等对沿海岛屿可能导致“两个中国”问题的警觉,为台美之间最后达成关于沿海岛屿的协议设定了一个底线。     

A new approach to the tympanum of Neuilly-en-Donjon

Romanesque sculpture can be profitably studied by trying to create the thought processes of those responsible for designing the programs. In particular, the thought pattern of associating various biblical stories which contain the same or similar words can be applied to the program of the little church of Neuilly-en-Donjon (Allier). It is clear that the various stories depicted are related to one another by sound - for example the Adoration of the Magi and the fall of Simon Magus and Mary Magdalen at the house of Simon the Pharisee. However, just as the genius of a monastic author such as Bernard of Clairvaux was the thematic unity he could use to organize these aural associations, so does the importance of the program at Neuilly derive from the sophisticated thematic unity of the program around the theological virtue of faith. From this study, we can learn not only to appreciate the genius of the designer of the program at Neuilly but also to attempt to unlock other secrets of Romanesque sculpure by applying this or other elements of contemporary thought processes to the parts of a program.     

河南洛阳市汉魏故城发现北魏宫城五号建筑遗址

2010年10~12月和2011年3~5月,中国社会科学院考古研究所与日本独立行政法人国立文化财政机构奈良文化财政研究所联合考古队,对汉魏洛阳故城北魏宫城西南角进行大面积     

也说师■鼎铭的“困(韋東)伯太师武”

师■鼎铭"困伯太师武"一句的"困(韋東)"二字,原文写法非常奇怪。裘锡圭先生释为"東(韋東)",读为"范围",认为是遵循、效法之意。本文同意把后一字释为"(韋東)",但把前一字改释为"困"。"困(韋東)"也是遵循、效法的意思。     

Applying the H/V Method to Dense Cities. A Case Study of Valencia City

The aim of this study was to apply Nakamura's technique to Valencia city center, after some preliminary tests in Barcelona. Previous studies of Barcelona had measured periods in restrictive conditions and in various types of material ranging from very soft soil (with a predominant period of approximately 2 s) to rock (0.3 s), and under different measurement conditions. The Valencia city center measurements were taken by using the distance from buildings and car and pedestrian traffic to construct a measurement grid that was as regular as possible. We also estimated possible soil-structure interaction to detect potential vulnerability.     

ON THE RESOLUTION OF H/V MEASUREMENTS TO DETERMINE SEDIMENT THICKNESS,A CASE STUDY ACROSS A NORMAL FAULT IN THE LOWER RHINE EMBAYMENT,GERMANY

In recent years, H/V measurements have been increasingly used to map the thickness of sediment fill in sedimentary basins in the context of seismic hazard assessment. This parameter is believed to be an important proxy for the site effects in sedimentary basins (e.g. in the Los Angeles basin). Here we present the results of a test using this approach across an active normal fault in a structurally well known situation. Measurements on a 50 km long profile with 1 km station spacing clearly show a change in the frequency of the fundamental peak of H/V ratios with increasing thickness of the sediment layer in the eastern part of the Lower Rhine Embayment. Subsequently, a section of 10 km length across the Erft-Sprung system, a normal fault with ca. 750 m vertical offset, was measured with a station distance of 100 m. Frequencies of the first and second peaks and the first trough in the H/V spectra are used in a simple resonance model to estimate depths of the bedrock. While the frequency of the first peak shows a large scatter for sediment depths larger than ca. 500 m, the frequency of the first trough follows the changing thickness of the sediments across the fault. The lateral resolution is in the range of the station distance of 100 m. A power law for the depth dependence of the S-wave velocity derived from down hole measurements in an earlier study [Budny, 1984] and power laws inverted from dispersion analysis of micro array measurements [Scherbaum et aL, 2002] agree with the results from the H/V ratios of this study.     

顾维钧与中国留美学生会

1904—1912年顾维钧留学美国期间,积极参与中国留美学生会的各种活动,担任过东美中国留学生会会长及其他多项职务,并主编过《中国留美学生月报》,对中国留美学生会的组织发展和各项事业做出了重要贡献。他参与中国留学生会及其他各种社会活动,锻炼和提高了自身能力,积累了广泛的人脉关系,为他的从政生涯奠定了良好的基础和起点。