With the rapid development of globalization,the industries of various countries are actively seeking the best way to improve the global value chain(GVC)status while integrating into the world.As an important factor af...With the rapid development of globalization,the industries of various countries are actively seeking the best way to improve the global value chain(GVC)status while integrating into the world.As an important factor affecting the GVC status,foreign direct investment(FDI)has attracted extensive attention from scholars.On the basis of systematically summarizing the research progress of FDI theory,GVC status and the influence of FDI on GVC status,the paper tries to clarify the internal relationship between FDI and GVC status,explores the shortcomings of existing research,and puts forward the possible direction of future research.展开更多
This paper gives an analysis of the dynamic characteristics of situation elements(SEs) in situation awareness(SA)research. The purpose of the discussion is to understand the factors that influence SA and to help in de...This paper gives an analysis of the dynamic characteristics of situation elements(SEs) in situation awareness(SA)research. The purpose of the discussion is to understand the factors that influence SA and to help in designing the training systems to improve operators’ SA. The status function of SEs is defined and the derivative of the function represents trends of the status of SEs at each moment. Then, Fourier transform(FT) is used to give the frequency-domain function in terms of the time-domain status function. In frequency domain, the bandwidth of the status function is used as a criterion to characterize the notion of "fast" and"slow" of the change of SE’s status, which represents the dynamic characteristic of SEs. The criterion constitutes the first analytical measurement of the dynamic characteristic of SEs, which is one of the important factors that influence the SA process.展开更多
文摘With the rapid development of globalization,the industries of various countries are actively seeking the best way to improve the global value chain(GVC)status while integrating into the world.As an important factor affecting the GVC status,foreign direct investment(FDI)has attracted extensive attention from scholars.On the basis of systematically summarizing the research progress of FDI theory,GVC status and the influence of FDI on GVC status,the paper tries to clarify the internal relationship between FDI and GVC status,explores the shortcomings of existing research,and puts forward the possible direction of future research.
基金supported by the National Natural Science Foundation of China(61174198)the PLA Military Graduate Students Foundation(2011JY002-163)
文摘This paper gives an analysis of the dynamic characteristics of situation elements(SEs) in situation awareness(SA)research. The purpose of the discussion is to understand the factors that influence SA and to help in designing the training systems to improve operators’ SA. The status function of SEs is defined and the derivative of the function represents trends of the status of SEs at each moment. Then, Fourier transform(FT) is used to give the frequency-domain function in terms of the time-domain status function. In frequency domain, the bandwidth of the status function is used as a criterion to characterize the notion of "fast" and"slow" of the change of SE’s status, which represents the dynamic characteristic of SEs. The criterion constitutes the first analytical measurement of the dynamic characteristic of SEs, which is one of the important factors that influence the SA process.
