试论宗教的地理背景

本文从宗教的起源、宗教的源地、宗教的习俗和教义、宗教的分布等四个方面论述了与其地理背景的密切关系.     

Seismic Noise Characteristics at the Romanian Broadband Seismic Network

The noise level of the Romanian broadband stations operating since 2006 has been studied in order to identify the variations in background seismic noise as a function of time of day, season, and particular conditions at the stations. Power spectral densities and their corresponding probability density functions are used in this paper to characterize the background seismic noise. At high frequencies (> 1 Hz), seismic noise seems to have cultural origin, since significant variations (up to 55 dB) between daytime and nighttime noise levels are observed at almost all of the stations. However, this variability appears not to influence the detection capabilities of the Romanian Seismic Network in case of intermediate-depth earthquakes and earthquakes with magnitude over 3.0. For smaller magnitude events (Mw < 3), we showed that the number of stations detecting an event decreases during daytime. We studied the seasonal variation of the seismic noise for primary and secondary microseisms (with emphasize for the latter) and we demonstrated that the noise levels are higher in winter than in summer. We also observed a shift of the double-frequency peak from lower periods in summer to longer periods in winter. The polarization analysis indicated that the main sources of secondary microseisms for stations close to the Black Sea are coming from the Black Sea, while for the others the main sources are found in the Mediterranean Sea and Atlantic Ocean. Finally, the analysis of the probability density functions for stations located in different geologic conditions has pointed out that the noise level is higher for stations sited on softer formations than those sited on hard rocks.     

长白府设置的背景及意义

1860年之后,东北柳条边外地区内忧外患并发。为了摆脱危机,清政府于光绪初年设东边道及通化等县,管辖鸭绿江中游到长白山腹地的广大地区。随着人口日增和边疆危机的加深,加强边政建设,尤其是地方行政设治,成为当务之急。1908年清政府批准设立长白府。长白府设置后,首先完善内治,强化控驭;其次加强对朝侨管理,抵制日本的侵略图谋;最后,招民实边,建设边陲。经过边臣疆吏不懈努力,荒芜略辟,边陲粗安,使清朝在其垂暮之年,力行边政,阻遏了侵华势力对我长白山地区的领土觊觎,在力所能及的范围内维护了国家主权。     

试论曾侯乙墓文物的辉煌艺术成就

湖北随州战国曾侯乙墓的发掘,是“20世纪中国百项考古大发现”的一项。出土文物15000余件。试从音乐、工艺美术、雕塑、绘画、书法诸多领域,全面论述这些文物所反映出的公元前5世纪中国辉煌艺术成就。并分析取得这些成就的历史渊源和社会背景。     

数字图书馆与传统图书馆比较分析

探讨了数字图书馆现实背景,并从馆藏、工作中心、借阅、工作人员四个方面,对数字图书馆与传统图书馆进行了比较分析。