scholarly journals Algebraic Connectivity Optimization of Large Scale and Directed Air Transportation Network

2012 ◽  
Vol 45 (24) ◽  
pp. 103-109
Author(s):  
Gregoire Spiers ◽  
Peng Wei ◽  
Dengfeng Sun
2016 ◽  
Vol 10 (10) ◽  
pp. 213 ◽  
Author(s):  
Zeyun Li ◽  
Sharifah Rohayah Sheikh Dawood

World city network formation is one of the most robust trends in the context of globalization. The unprecedented economic transformation and infrastructure restructuring enable China to integrate in world city network overwhelmingly. The purpose of this paper is aiming to conduct a network analysis of Chinese air transportation network based upon large-scale collected data of inter-city air passengers’ volume thereby identifying the world city network of Chinese cities, as well as the internal cooperative relationship and hierarchical structure of these articulations in the network. There are 80 sample cities are enclosed in this air transportation network model using UCINET, which is pioneering social network analytical software. Clearly, UCINET is applied to manipulate the matrix of inter-city air passengers flows in order to elaborate analyze of density of the whole network, to calculate multiple centrality of each node cities, which strives to identify the dominance of each cities’ hierarchical power and positions. In addition, NetDraw program in UCINET is designed to visualize the whole network whereas CONCOR program is operationalized to classify major subgroups within national air transportation network of China. Based on the analysis, we can find that Beijing, Shanghai and Guangzhou play a dominant role in this network, and it is evident that there exist some robust cooperative relationships within and between subgroups arisen from overall air transportation network. Overall, these findings consolidate a concrete cornerstone of Chinese world city network formation.


Author(s):  
Yong Yang ◽  
Kai-Jun Xu ◽  
Chen Hong

Air transportation networks play important roles in human mobility. In this paper, from the perspective of multilayer network mechanism, the dynamics of the Chinese air transportation network are extensively investigated. A multilayer-based passengers re-scheduling model is introduced, and a multilayer cooperation (MC) approach is proposed to improve the efficiency of network traffic under random failures. We use two metrics: the success rate and the extra transfer number, to evaluate the efficiency of re-scheduling. It is found that a higher success rate of passengers re-scheduling can be obtained by MC, and MC is stronger for resisting the instability of the capacity of links. Furthermore, the explosion of the number of extra transfer can be well restrained by MC. Our work will highlight a better understanding of the dynamics and robustness of the Chinese air transportation network.


Author(s):  
Dhanapati Sharma ◽  
Khem Prasad Gautam

Entrepreneurship plays an important role in generating employment opportunities, enhancing public income and promoting societal change, particularly in a budding economy like Bhutan. Given its importance to the country, this paper investigates the challenges faced by aspiring entrepreneurs and entrepreneurial ventures, and their future prospects in Bhutan. The paper adopts qualitative research methodology to study the perspective of business educators through a semi-structured interview with fifteen participants from Gedu College of Business Studies located at Gedu, Bhutan. The study reveals that, due to a range of challenges the aspiring entrepreneurs and the entrepreneurial ventures face today, the Bhutanese entrepreneurs have a long way to go before they can effectively drive changes in the economy. However, the findings suggest that there is a good prospect for the entrepreneurial ventures in the country, and the ventures will have an undue advantage if it can leverage on the technological support from other countries. To ease the way for entrepreneurs in the country, the study finds it important to encourage the consumption of indigenous products by discouraging the import of the goods and services that can be produced within the country, regulate the price of the home made product, explore market and marketing facilities beyond the country to encourage large scale production, initiate discussion about entrepreneurship and the associated benefits at school levels and also take adequate infrastructural facilities (water, electricity and transportation network) across all parts of the country.


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