7 research outputs found
Rail Corrugation Characteristics Deduced from a Wavelet Analysis of High-Speed Train Interior Noise and Vibration
No full textA method to deduce the characteristics of rail corrugation was developed and presented in this paper. It has been found that noise and vibration in the train vehicle were primarily contributed by rail corrugation and wheel polygonalisation. As the characteristics of wheel sets of a particular train can be assumed to be unchanged during a trip, rail corrugation along the tracks of the trip can be identified. Wavelet analysis was employed in analysing interior noise and vibration data collected inside a high-speed train vehicle traveling on a typical high-speed line in China. Noise and vibration data corresponding to increasing, decreasing, and unchanged train speeds were grouped and examined using time-frequency domain analysis. For both acceleration and deceleration speed conditions, the characteristic frequency of interior noise and vibration changes as the train speed changes, in a discontinuous pattern, and with a fixed speed-frequency ratio, which can be deducted as the pinned-pinned frequency of rail vibration and wavelength of rail corrugation in corresponding rail track sections. This method enables accurate restoration of rail corrugation characteristics, without having to apply for railway possession for rail corrugation tests onsite, which is an inexpensive yet reliable method to provide a basis for the formulation of line maintenance and rail grinding plans
"Chapter 5 Soft Power and teh Strategic Context for 'China's media going global' policy" , in Daya Kishan Thussu, Hugo de Burgh and Anbin Shi eds., China's Medial Going Global
No full textImpact of globalisation on the local press in China : a case study of the Beijing Youth Daily from 1981 to 2006
No full textThis thesis addresses the issue of impact of globalisation on the news production and news content at local newspapers in China. By making an in-depth study of Being Youth Daily, the second biggest local newspaper in Beijing, essential changes in the local newspapers- are identified and analysed,thus revealing the relations between the
global and local, external and internal influences, the Party-state and the media as well as the media and the market.
The central argument is that globalisation impacts many aspects of local newspapers including media policy, organisation, journalistic practice, journalists' roles and
coverage of world news. Such impact is uneven. In the case of the state's media policies and organizational changes the influence is explicit whereas in relation to news production routines and the perceptions of newspeople it tends to be implicit.
Driven by the commercialization of the domestic media, the accelerated world-wide flow of goods and capital, population mobility, and the advancement of information
technology, especially the Internet, Chinese local newspapers and newspeople share many commonalities and similarities with the western press and western newspeople
but also maintain distinctive characteristics due to China's unique political-socialeconomic system. Consequently, globalisation is producing neither total
homogenization nor total heterogenisation but a mixture.
Globalisation is a process involving a multi-level deregulation and re-regulation, protectionism, capitalism, media convergence, hybridization and domestication
driven by the interaction of global and local actors, political, economic and technical factors, and external and internal influences. In the globalisation era, the state still plays a central role. A free press does not emerge in an authoritarian state just because of globalisation
