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Analyzing the Competitiveness of Major Chinese Airports based on Air Cargo Services
PARK Yonghwa,JIN Lai,NA Chieun 인하대학교 정석물류통상연구원 2008 인하대학교 정석물류통상연구원 학술대회 Vol.2008 No.10
This paper presents an analysis of the competitiveness status of China’s major airports (Shanghai Pudong Airport, Beijing Capital Airport, and Guangzhou Baiyun Airport) as well as Korea’s Incheon International Airport. The analysis assesses these airports using pervious research, pilot tests, and the AHP and HFP Methods. The analysis is based on four factors : service competitiveness, demand competitiveness, market competitiveness, and facility competitiveness. Airport competitiveness was evaluated by using and algorithm derived from the reversed Fuzzy evaluation method. The results of the analysis and reversed Fuzzy evaluation show the four factors are ranked accordingly : 1st is service competitiveness, 2nd is demand competitiveness, 3rd is facility competitiveness and 4th is market competitiveness. The ranking is as follows, 1 st is Incheon international Airport, 2nd is Beiging Capital Airport, 3rd is Shanghai Pudong Airport, and 4th is Guangzhou Baiyun Airport.
The Competition and the Impact of Environmental Policies on Air Transportation Industry in China
Yonghwa Park 인하대학교 정석물류통상연구원 2010 인하대학교 정석물류통상연구원 학술대회 Vol.2010 No.5
This paper studies the development and market structure of China"s air transportation industry. First, we give a brief picture of the macro-environment of the domestic air transport. Then, we study the recent development of the industry and its main reasons. Third, we explore some properties of current competition of the industry, including market concentration, geographic distribution of market share, competition participants, etc. Forth, we discuss the impact of environmental policies and the low carbon idea on China"s air transport. Finally, we try to reveal the future prospect of the industry and give some appropriate policy recommendation.
Park Youngjin,Choi Yonghwa,Kim Yonggyun Korean Society of Applied Entomology 2005 Journal of Asia-Pacific Entomology Vol.8 No.2
Entomopathogenic nematode, Steinernema carpocapsae, carries the symbiotic bacterium, Xenorhabdus nematophita, and enter host insect hemocoel. In the infected host, nematodes release the bacteria, which in turn cause lethal hemolymph septicemia. This study was designed to test a hypothesis that hemolymph septicemia of beet armyworm, Spodoptera exigua, is triggered by X. nematophita through a programmed cell death (=apoptosis) of the hemocytes. Morphological changes of the hemocytes after the bacterial infection were similar to cell changes undergoing a typical apoptosis. At 4-8 h post-infection, the cell membrane blebbing and apoptotic vesicles were observed and the nuclear membrane was broken apart. At 12 h post-infection, the overall cell shape was lost externally and nuclear condensation was evident internally, where genomic DNA was fragmented into small pieces. Proportion of apoptotic hemocytes increased with post-infection time and reached a maximum level when the hemocytes were in complete septicemia. Increase of FAD-glucose dehydrogenase (EC 1.1.99.10) activity preceded initial hemocyte apoptosis after the bacterial infection. The infected plasma or the culture broth of X. nematophila contained apoptosis-inducing factors. The apoptosis factors were extracted into organic fraction and turned out to be relatively high hydrophobic chemical nature after further fractionation assay. These results indicate that X. nematophita induces hemocyte apoptosis by its secretory material(s), which lead to hemolymph septicemia and immunodepression of the target insect hosts.