National Museum of China

Beijing, China

National Museum of China

Beijing, China
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Wei G.,Zhejiang University | Zhang H.,Zhejiang University | Wang H.,National Museum of China | Fang S.,Zhejiang University of Technology | And 2 more authors.
Construction and Building Materials | Year: 2012

Sticky rice-lime mortar is one of the most important technological inventions in the Chinese architectural history. In this work, an experimental study on the application of sticky rice-lime mortar in conservation of the stone tower in the Xiangji Temple was performed by means of the property characterization, SEM, XRD and DSC-TG analysis. Our Results indicate that paper fiber is the most effective admixture to endure freezing-thawing cycles and increase the compressive strength of sticky rice-lime mortar, and the use of aluminum sulfate reduces the drying shrinkage values and increases the compressive strength because of the formation of ettringite in sticky rice-lime mortar. It is suggested that 6% aluminum sulfate or 3% paper fiber may be the appropriate admixture of sticky rice-lime mortar in conservation of cultural relics. Based on the results of laboratory experiment, the sticky rice-lime mortar with 3% paper fiber is selected as the grouting material for the conservation of the Xiangji Temple tower. © 2011 Elsevier Ltd. All rights reserved.

Ye X.,Beijing University of Chemical Technology | Ye X.,Beijing Institute of Petrochemical Technology | Lin X.,Beijing Institute of Petrochemical Technology | Dai X.,National Museum of China
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) | Year: 2011

In order to imitate the course of learning and cognizing things with the human brain better, this article introduced the human brain's Memorizing-forgetting Character to the ART2 Network, then with the Memory Strength as the basis of sequence for recognition with existing patterns, thus this network model would be improved better. Through Simulation for recognition and classification with experimental samples, we prove that the ART2 network with Memorizing-forgetting Character could recognize experimental samples with less time in recognition than original ART2 network, and improve the efficiency of network. © 2011 Springer-Verlag.

Lijun Y.,CAS Institute of Remote Sensing | Yueping N.,CAS Institute of Remote Sensing | Lin Y.,National Museum of China | Yueyin Y.,National Museum of China
Proceedings of the DigitalHeritage 2013 - Federating the 19th Int'l VSMM, 10th Eurographics GCH, and 2nd UNESCO Memory of the World Conferences, Plus Special Sessions fromCAA, Arqueologica 2.0 et al. | Year: 2013

Liangzhu culture is an important Neolithic culture located in Taihu Lake and the lower reaches of the Yangtze River which was about 5300-4100 years ago. The society during Liangzhu culture was a mature and early social civilization with a perfect management system and level. It's meaningful to study the Liangzhu culture in order to trace the source of Chinese civilization. The multisource data including the aerial photographs, satellite photos, old topographic maps and the documentations about the climate and hydrology were employed to research spatial patterns and density distribution feature of Liangzhu culture sites around Taihu Basin by spatial analyst method. Environmental changes around Mojiaoshan could be detected using information extraction. In addition, the function and regional status of Mojiaoshan City was confirmed using site visibility analysis. Ac cording to the research, the choice of location for historical sites has common significant features which were in terpreted as evidence for their life-style and environment. The sites were al ways located in th e relatively highland where it was convenient to get water and away from the outlet of catchment basins which ensure the safety of people and an ormai life during the rainy season and make the threat of flood less. According to the old aerial photographs after the image enhancement and precessing, the traces of the river diversion could be recognized. Based on the vague traces and historical documents, the Dongtiaoxi River diverted from east-west to the north direction. And this change was related to the ground sub sidence of Taihu Basin and the high tide of the Qiantang River, which might contribute to the disappearance of Liangzhu culture. The paper employed multi-discipline research methods, made macro analysis and deeper explanation about the Liangzhu culture and Liangzhu ancient city which combined archaeology, history, remote se nsing and GIS inste ad of traditional methods of archaeology. © 2013 IEEE.

Yu L.,CAS Institute of Remote Sensing Applications | Nie Y.,CAS Institute of Remote Sensing Applications | Liu F.,CAS Institute of Remote Sensing Applications | Zhu J.,CAS Institute of Remote Sensing Applications | And 2 more authors.
Proceedings of 2012 International Conference on Image Analysis and Signal Processing, IASP 2012 | Year: 2012

China is the only country in the world with continuous ancient civilization whose history can be traced for more than 5000 years. With the rapid development of remote sensing, abundant remote sensing data of the same site by different remote sensors are available at the same time. How to make full use of these data and extract the useful information is one of the problems that have puzzled the remote sensing archaeological researchers. Data fusion provides effective means for remote sensing archaeology to recognize the archaeological sites. The article selected the SPOT5 data, used the HSV transformation method, Brovey transformation method, Gram-Schmidt, Pansharping, Wavelet, PCA transformation method, HPF and Ehlers method and employed the quantitative evaluating indexes both from spatial and spectral information aspects to evaluate the fusion results, which were processed in the MATLAB. The results show that the fusion images by wavelet, PCA transformation method and GS transformation method have reserved the spectral information better; the Pansharping, Brovey and HSV methods can enrich the spatial information and enhance the contrast of features. Through evaluation, the Pansharping method shows the rich textural details that improved the archaeological site recognition best in Liangzhu ancient city. There is no denying that the fusion methods can enhance the information to different degrees, but an optimal fusion method should be employed according to the specific archaeological site. By data fusion, better understanding of the site extent, structure and organization may well be achieved. © 2012 IEEE.

Jia P.,CAS Institute of Remote Sensing Applications | Nie Y.,CAS Institute of Remote Sensing Applications | Yang L.,National Museum of China
International Geoscience and Remote Sensing Symposium (IGARSS) | Year: 2010

The 3 rd National Cultural Relics General Survey in Hainan Province was started in early 2008. As the advanced technological method, remote sensing was introduced to support the survey because of the inaccessibility of tropical forests. We collected Landsat images, ALOS images and black-and-white aerial photos and corrected them all. Based on the common principle of remote sensing in archaeology, we analyzed two factors: sunshine and nutrient; then we got the special principle in tropical vegetation regions. In the end, we chose Qiongshanjiuzhou, Zhuyaling, Dayapo and Nanjianzhou Ancient City as typical examples to demonstrate the important roles remote sensing played in recognizing the border of ancient city sites and calculated the perimeter and area of each ancient city site. © 2010 IEEE.

Deng B.,CAS Institute of Remote Sensing Applications | Nie Y.,CAS Institute of Remote Sensing Applications | Wang C.,Chinese Academy of Sciences | Lei S.,National Museum of China | Li R.,National Museum of China
Proceedings - 2011 19th International Conference on Geoinformatics, Geoinformatics 2011 | Year: 2011

Now Geographical Information System (GIS) and Google Earth (GE) have become increasingly popular within archaeological research contexts. GIS allows to contain and to store, manage and represent the archaeological data, following the different phases of archaeological research. GE uses high resolution satellite images of the entire planet to allow the archaeologists to find archaeological marks and view the sites from different perspectives. This paper demonstrate our work that integrate use of GE and GIS for the third national survey of cultural relics in Xinjiang, showing that the method proposed is effective and practical. © 2011 IEEE.

Deng B.,CAS Institute of Remote Sensing Applications | Nie Y.,CAS Institute of Remote Sensing Applications | Guo H.,Chinese Academy of Sciences | Wang C.,Chinese Academy of Sciences | And 2 more authors.
International Journal of Digital Earth | Year: 2013

Digital Earth is an information-rich expression of the real Earth and is a new way of understanding the Earth in the twenty-first century. Archeology has found great potentialities in Digital Earth, strongly increasing its development and its interdisciplinary experimentations. With the rapid development of remote sensing, the importance of applying Earth observation technology to arche-ological research has caught a great amount of attention worldwide. The objective of this study is to apply Radarsat-1 and Landsat imagery, historical maps, and aerial photographs in the detection and verification of disappeared reservoirs built 500 years ago as part of the Grand Canal of China. The results of the study show that the potential sites present distinct variations in soil moisture, biomass, and biological vigor, characterized by weak backscattering in Radarsat imagery; high vegetation indices in Landsat imagery; and distinct anomalies in a Landsat principle components image. Historical maps and aerial photographs also verified the existence of the sites of disappeared reservoirs. Since the sites have so far not been extensively explored, the results should represent a significant contribution to the understanding of the Grand Canal of China and its auxiliary facilities. © 2013 Taylor & Francis.

Cheng X.,University of Science and Technology Beijing | Chen S.,National Museum of China | Li X.,University of Science and Technology Beijing | Zhang R.,University of Science and Technology Beijing | And 2 more authors.
Corrosion Science and Protection Technology | Year: 2011

The corrosion behavior of four kind of cast irons made according to the composition of several ancient cast irons in 3.5% NaCl solution were investigated by using immersion test and potentiodynamic polarization measurement. The results showed that the corrosion rate of the grey cast irons was higher than that of the white cast irons. The grey iron with low sulfur content showed a higher corrosion rate and poor corrosion resistance in comparison with that with high sulfur; but for the white irons, the sulfur content showed no significant effect on their corrosion properties. XRD spectra analysis indicated that lepidocrocite, magnetite and goethite existed in the corrosion products of all four cast irons, among which the loose, unstable lepidocrocite was predominant. Akaganeite, the most commonly seen corrosion product for ironwares excavated from the sea, however, had not been seen among the examined corrosion products.

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