Recently, FTTH （fiber to the home） is spreading rapidly, and communication technology has become an indispensable part in our lives. FTTH installers who build the infi＇astructure must correspond to the progress of ...Recently, FTTH （fiber to the home） is spreading rapidly, and communication technology has become an indispensable part in our lives. FTTH installers who build the infi＇astructure must correspond to the progress of technology while ensuring a high quality of installation, and it is struggling to its counterpart. The present study is undertaken in order to propose effective vocational ability development program for FTTH installers from the approach of their skill. They are information network cabling-related qualification system and competitions as the ability evaluation system. Then the author concludes that this program makes a contribution to improving their skill and maintaining the quality of the optical fiber network in analyzing some example of actual installation work and the measurement result of the OTDR（optical time domain reflect） meter.展开更多
Abstract:Based on optical fiber technology, the main electric circuit of the remote I/O unit controller is studied. And the application of the system is illustrated.
Hydrogen is one of the next generation energies in the future, which shows promising applications in aerospace and chemical industries. Hydrogen leakage monitoring is very dangerous and important because of its low ig...Hydrogen is one of the next generation energies in the future, which shows promising applications in aerospace and chemical industries. Hydrogen leakage monitoring is very dangerous and important because of its low ignition energy, high combustion efficiency, and smallest molecule. This paper reviews the state-of-art development of the fiber optic hydrogen sensing technology. The main developing trends of fiber optic hydrogen sensors are based on two kinds of hydrogen sensitive materials, i.e. palladium-alloy thin films and Pt-doped WO3 coatings. In this review work, the advantages and disadvantages of these two kinds of sensing technologies will be evaluated.展开更多
John Allen defines himself as a global entrepreneur, active in private and public areas. As Chairman and CEO of Greater China Corporation （GCC）, a public company based in New York City, he is involved in acquiring a...John Allen defines himself as a global entrepreneur, active in private and public areas. As Chairman and CEO of Greater China Corporation （GCC）, a public company based in New York City, he is involved in acquiring and building businesses relating to China＇s economic growth. Allen is also a director of the Chinese Cultural Foundation, of Global China Media LLC and a member of the China Investment Group LLC. In addition, he helped to start AIESEC in China, a member of a global, student-run exchange program, which operates through more than 300 universities in 89 countries worldwide. Allen＇s goal is to use GCC as a platform to dramatically expand revenues, profits and market capitalization by getting involved in a cross-section of China＇s key growth industries. His aim is to quickly build operations that can justify a value of over US$I billion with a listing on the New York Stock Exchange in order to attract sophisticated international investorsincluding those from China. Allen came to Beijing in February, accompanied by several wealthy individuals from New York, to attend the China-US Business Forum. At the sideline of the Forum, the savvy financier shared with CIB his opinions on cross-border transactions, venture capital investments and the prospect of RMB revaluation.展开更多
文摘Recently, FTTH （fiber to the home） is spreading rapidly, and communication technology has become an indispensable part in our lives. FTTH installers who build the infi＇astructure must correspond to the progress of technology while ensuring a high quality of installation, and it is struggling to its counterpart. The present study is undertaken in order to propose effective vocational ability development program for FTTH installers from the approach of their skill. They are information network cabling-related qualification system and competitions as the ability evaluation system. Then the author concludes that this program makes a contribution to improving their skill and maintaining the quality of the optical fiber network in analyzing some example of actual installation work and the measurement result of the OTDR（optical time domain reflect） meter.
文摘Abstract:Based on optical fiber technology, the main electric circuit of the remote I/O unit controller is studied. And the application of the system is illustrated.
基金This work is finically supported by the project of the National Science Foundation of China, NSFC （Number： 60908020, 61290311） and program for the New Century Excellent Talents in University （NCET-10-0664）. Open Access This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author（s） and source are credited.
文摘Hydrogen is one of the next generation energies in the future, which shows promising applications in aerospace and chemical industries. Hydrogen leakage monitoring is very dangerous and important because of its low ignition energy, high combustion efficiency, and smallest molecule. This paper reviews the state-of-art development of the fiber optic hydrogen sensing technology. The main developing trends of fiber optic hydrogen sensors are based on two kinds of hydrogen sensitive materials, i.e. palladium-alloy thin films and Pt-doped WO3 coatings. In this review work, the advantages and disadvantages of these two kinds of sensing technologies will be evaluated.
文摘John Allen defines himself as a global entrepreneur, active in private and public areas. As Chairman and CEO of Greater China Corporation （GCC）, a public company based in New York City, he is involved in acquiring and building businesses relating to China＇s economic growth. Allen is also a director of the Chinese Cultural Foundation, of Global China Media LLC and a member of the China Investment Group LLC. In addition, he helped to start AIESEC in China, a member of a global, student-run exchange program, which operates through more than 300 universities in 89 countries worldwide. Allen＇s goal is to use GCC as a platform to dramatically expand revenues, profits and market capitalization by getting involved in a cross-section of China＇s key growth industries. His aim is to quickly build operations that can justify a value of over US$I billion with a listing on the New York Stock Exchange in order to attract sophisticated international investorsincluding those from China. Allen came to Beijing in February, accompanied by several wealthy individuals from New York, to attend the China-US Business Forum. At the sideline of the Forum, the savvy financier shared with CIB his opinions on cross-border transactions, venture capital investments and the prospect of RMB revaluation.
