Implications of Analysis of the Han River Line Defense Operations in the Aspect of elements of combat

2021 ◽  
Vol 42 (2) ◽  
pp. 141-186
Author(s):  
You-seok Kim
Keyword(s):  
Transfers ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 99-108
Author(s):  
Jooyoung Kim ◽  
Taehee Kim ◽  
Jinhyoung Lee ◽  
Inseop Shin

This think piece approaches urban travel from a mobility humanities perspective, using the example of Seoul, South Korea, a leading metropolis in Asia. The article demonstrates three modes of interpreting urban travel in Seoul: (1) representation by means of mobile video technologies embodying a paradoxical relationship of powers; (2) literary imagination confining a possible mobile community in a restricted region; and (3) philosophical speculation presenting “crossing the Han River” as a spiritual and emotional reproduction of the connection between, and consequential rupture of, heterogeneous territories. The article pays particular attention to the represented, imagined, and speculated dimensions of urban travel, which is understood as a physically practiced and cognitively elaborated production, rather than a predefined movement per se.


2016 ◽  
Vol 49 (4) ◽  
pp. 347-359
Author(s):  
Jungkyu Ahn ◽  
Jong Mun Lee ◽  
Young Do Kim ◽  
Boosik Kang

Author(s):  
Hong Lin ◽  
Yuanbo Kang ◽  
Danyang Wang ◽  
Zeyu Lu ◽  
Wei Tian ◽  
...  

Polymers ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 2154
Author(s):  
Amir Hussain Idrisi ◽  
Abdel-Hamid I. Mourad ◽  
Muhammad M. Sherif

This paper presents a long-term experimental investigation of E-glass/epoxy composites’ durability exposed to seawater at different temperatures. The thermoset composite samples were exposed to 23 °C, 45 °C and 65 °C seawater for a prolonged exposure time of 11 years. The mechanical performance as a function of exposure time was evaluated and a strength-based technique was used to assess the durability of the composites. The experimental results revealed that the tensile strength of E-glass/epoxy composite was reduced by 8.2%, 29.7%, and 54.4% after immersion in seawater for 11 years at 23 °C, 45 °C, and 65 °C, respectively. The prolonged immersion in seawater resulted in the plasticization and swelling in the composite. This accelerated the rate of debonding between the fibers and matrix. The failure analysis was conducted to investigate the failure mode of the samples. SEM micrographs illustrated a correlation between the fiber/matrix debonding, potholing, fiber pull-out, river line marks and matrix cracking with deterioration in the tensile characteristics of the thermoset composite.


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