Chapter 8. The Great Wall of Europe

Author(s):  
Nadežda Silaški ◽  
Tatjana Đurović
Keyword(s):  
Nature ◽  
2003 ◽  
Author(s):  
HelenR. Pilcher
Keyword(s):  

2016 ◽  
Vol 0 (0) ◽  
Author(s):  
Tianxu Chen
Keyword(s):  

2010 ◽  
Vol 22 (2) ◽  
pp. 141-149
Author(s):  
Qinghua Yang ◽  
Zhaohui Yin ◽  
Lin Zhang ◽  
Jianyong Xing ◽  
Bo Su
Keyword(s):  

2017 ◽  
Author(s):  
Felix Boecking
Keyword(s):  

1996 ◽  
Vol 168 ◽  
pp. 175-182 ◽  
Author(s):  
D.S. Mathewson ◽  
V.L. Ford

Peculiar velocity measurements of 2500 southern spiral galaxies show large-scale flows in the direction of the Hydra-Centaurus clusters which fully participate in the flow themselves. The flow is not uniform over this region and seems to be associated with the denser regions which participate in the flow of amplitude about 400km/s. In the less dense regions the flow is small or non-existent. This makes the flow quite asymmetric and inconsistent with that expected from large-scale, parallel streaming flow that includes all galaxies out to 6000km/s as previously thought. The flow cannot be modelled by a Great Attractor at 4300km/s or the Centaurus clusters at 3500km/s. Indeed, from the density maps derived from the redshift surveys of “optical” and IRAS galaxies, it is difficult to see how the mass concentrations can be responsible particularly as they themselves participate in the flow. These results bring into question the generally accepted reason for the peculiar velocities of galaxies that they arise solely as a consequence of infall into the dense regions of the universe. To the N. of the Great Attractor region, the flow increases and shows no sign of diminishing out to the redshift limit of 8000km/s in this direction. We may have detected flow in the nearest section of the Great Wall.


2021 ◽  
Vol 13 (13) ◽  
pp. 7166
Author(s):  
Yukun Zhang ◽  
Songyang Li ◽  
Lifeng Tan ◽  
Jiayin Zhou

The Great Wall of China is more than a wall: it is an extensive cultural route. Pass cities, which are usually large defensive fortresses overseeing an entire fortified area, are an essential part of this heritage and are at the core of the Great Wall’s defense system. Juyong Pass was the closest Pass city to Beijing during the Ming Dynasty when the Great Wall reached its peak. It consisted of five regions—south, east, north, west, and central—that form three fortification levels: core castle, Bao city, and End facility. Based on the Juyong defense area military settlements database, this paper applied spatial analysis methods and found that more than half of the military’s resources for the whole defense area were focused on the western part of the wall, which formed another military core alongside Juyong Pass city. However, the current conservation strategy only focuses on Juyong Pass itself, neglecting the settlements in the western part, thereby destroying the integrity of the Great Wall’s heritage. By clarifying the distribution of cultural heritage in this area, we hope to encourage the preservation of many fortifications according to their authentic historical sphere of control and provide a reference for the sustainable integration of resources along the significant cultural routes of the Great Wall.


2013 ◽  
Vol 17 (4) ◽  
pp. 1281-1294 ◽  
Author(s):  
Aiming Lin ◽  
Gang Rao ◽  
Jianmin Hu ◽  
Wangbin Gong
Keyword(s):  

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