Application of an Extended Bouc-Wen Model in Seismic Response Prediction of Unbonded Fiber-Reinforced Isolators

The focus of this article is on seismic-response prediction of Stable Unbonded-Fiber Reinforced Elastomeric Isolators (SU-FREIs). The lateral load-displacement of a SU-FREI can be characterized with a gradual softening that is followed by stiffening. An extended Bouc-Wen Model is developed to simulate the response behavior of SU-FREIs under seismic events. To examine the accuracy of model, the response of a base isolated structure to different input earthquakes were simulated and compared with the results of a previous shake table study. Results of this study indicate that the proposed Bouc-Wen Model is robust and reasonably accurate in seismic analysis of SU-FREIs.     

Evaluating the efficiency of museums using multiple outputs: evidence from a regional system of museums in Spain

Data Envelopment Analysis is used to evaluate museum efficiency. This approach enables us to create a relative efficiency measure for each museum, taking into account resources used by museums and the performance of their activities based on four well-defined tasks: conservation, research, communication and exhibition. Empirical analysis of data from a regional museum system in Spain is performed, considering a complex production function with several inputs and outputs. The main findings indicate that at least half the museums chosen operate efficiently, with the major cause for inefficiency being inadequate resource management. Only few museums evidenced significant inadequate scaling problems. Major progress, mainly due to improvements in internal efficiency, is evident in the museum system ratios when analysing productivity evolution using the Malmquist Index. By contrast, technological change has less impact, proving that cultural heritage is less receptive to new technologies as compared to other cultural industries.     

Im Dienste der Wissenschaft: Der Centro de estudios históricos und die Begründung eines liberalen Nationalbewußtseins in Spanien (1910–1936)

In the Name of Science: the Centro de Estudios Históricos and the shaping of a liberal national conciousness in Spain (1910–1936). – The Centro de Estudios Históricos was founded in 1910 by the Junta para Ampliación de Estudios. The main goal was to create a modern scientific system, but the researchers of the Centro also attempted to reinterpret some aspects of the Spanish Culture. We also try to have a new insight into how Spanish History and Culture was apprehended by those intelectuals in order to create the cultural basis of a new Spanish nationalism. The philological school of Menéndez Pidal or the historical school of Sánchez‐Albornoz played an active role in trying to find out the cultural roots of the Spanish Culture. They strived for providing the Spanish nation a cultural background.     

A provenance study of Mycenaean pottery from Northern Israel

The occurrence of imported Mycenaean pottery in the Late Bronze Age southern Levant is one of the most conspicuous aspects of Eastern Mediterranean trade connections during this period. A group of 183 Mycenaean pottery vessels from 14 sites in northern Israel, from both coastal and inland settlement contexts were analyzed by Neutron Activation Analysis. The results indicate that the vast majority of these vessels have a similar profile and can be provenanced to the north-eastern Peloponnese or more specifically, to the Mycenae/Berbati workshop in the Argolid. Possible interpretations of these results are presented and discussed against the historical and cultural background of the Late Bronze Age Eastern Mediterranean.     

Petrographic analysis and INAA geochemistry of prehistoric ceramics from Robinson Pueblo, New Mexico

The examination of thin sections is a successful method for discovering provenance groupings of archaeological ceramics if non-clay inclusions in pottery paste can be identified with petrographically distinctive geologic sources. When this is not the case, geochemical analysis must be employed to search for more subtle evidence of such groupings. This situation is likely to arise in studies, such as the present one, where the objective is to discern local or subregional patterns of pottery manufacture and exchange. Ninety potsherds from site LA46326 in New Mexico were subjected to both INAA and petrographic analysis. The results of this conjoint approach are assessed in relation to geochemical theory and are analysed graphically and statistically.     

人地关系操作范式探讨

把人地关系作为地理学的研究核心,必须使人地关系理论具有操作性,要使人地关系走向操作,必须建立一整套人地关系的操作范式,本文总结了地理学人地关系已有的研究成果,提出了若干人地关系的操作范式     

New light on old pumice: the origins of Mediterranean volcanic material from ancient Egypt

This paper presents and discusses the Neutron Activation Analysis (NAA) results newly obtained from pumice pieces found decades ago at the Egyptian sites of Maiyana, Sedment, Kahun, and Amarna – now in the collections of the Ashmolean Museum, Oxford, and the Petrie Museum of Egyptian Archaeology, London – which could be successfully related to several volcanic eruptions in the Mediterranean. The work contributes to the constant accumulation of knowledge concerning the first appearance of pumice from the so-called Minoan eruption of the Santorini volcano. In addition, it unexpectedly sheds more light on the long-distance trade of Mediterranean volcanic material in the Bronze Age world by disclosing another connection between Lipari and the Eastern Mediterranean.     

Scientific examination of Shang-dynasty bronzes from Hanzhong,Shaanxi Province,China

Shang-dynasty bronzes recovered in the Hanzhong region, Shaanxi province have been receiving considerable research interest since the 1950s due to their strong regional characteristics. This paper presents preliminary analytical results of 16 samples taken from 13 Hanzhong bronze objects, which, for the first time, have revealed their diversity in chemical composition and casting quality. In particular, the finding that some correspondence probably exists between the types of artefact and their materials has significant implications for identifying regional technical characteristics of the Hanzhong bronzes, as well as for exploring the interaction between the metropolitan areas of the Shang Kingdom with the areas beyond its southwestern frontiers.     

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。     

新疆与历代中原王朝政治关系的计量分析

自西汉在新疆设官以来的两千多年中,新疆和中原王朝保持着四类政治关系。本文首先简述了中原王朝在新疆设置政权的沿革,然后以计量史学的方法对四类政治关系存续的时段分别予以统计,以关系的数量程度说明关系的性质。统计结果显示,新疆地区全部或部分在两千多年的大部分时段中处于中原王朝辖治之下,从而表明新疆自汉代以来就是中国领土的一部分。