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
选注者言:这是来自印度的一则消息。当SARS肆虐全球时,印度其实幸免此“难”(SARS-free),这是WHO下的结论,但是,也许由于过度之惊慌,造成了误 判,以为染SARS疾病者就在身边。当印度卫生部长被问及是否明白WHO为 SARS下的定义时,该部长...选注者言:这是来自印度的一则消息。当SARS肆虐全球时,印度其实幸免此“难”(SARS-free),这是WHO下的结论,但是,也许由于过度之惊慌,造成了误 判,以为染SARS疾病者就在身边。当印度卫生部长被问及是否明白WHO为 SARS下的定义时,该部长的回答令人发笑:the government wanted to be“展开更多
The clash between the Brazilian president and the local authorities sent confusing signals regarding the COVID-19 pandemic to the population.Many debates were raging across social media on whether people should stay h...The clash between the Brazilian president and the local authorities sent confusing signals regarding the COVID-19 pandemic to the population.Many debates were raging across social media on whether people should stay home or keep the economy running.Nevertheless,with the intensification of the pandemic and the prolonged restrictive measures,many people started to disrespect social distancing and,with the premature reopening of the economy in many cities,agglomerate.Even with restrictions on agglomeration by state and municipal governments and the cancellation of traditional New Year’s Eve events in Brazil,the turn of the year was characterized by illegal agglomeration in various states.The aim of the article is to explain why there were so many illegal New Year’s parties—known as CovidFests—in Brazil during the COVID-19 pandemic,despite the restrictions on agglomeration.The main argument indicates that CovidFests are connected to the lack of social belonging in Brazilian society,which reflects the ongoing necropolitics in the country and the dissemination of a furious melancholy,when discouragement becomes destructive.展开更多
Incensed by biased Western media coverage of the riots in Lhasa,Chinese people have taken to the streets abroad to protest Western media coverage of the Olympic torch disruptions and riots in Tibet has angered ordi- n...Incensed by biased Western media coverage of the riots in Lhasa,Chinese people have taken to the streets abroad to protest Western media coverage of the Olympic torch disruptions and riots in Tibet has angered ordi- nary Chinese people. Cable News Network(CNN)in the United States has come under particular criticism.Chinese people lambasted CNN for twice referring to the Tibet展开更多
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.
文摘选注者言:这是来自印度的一则消息。当SARS肆虐全球时,印度其实幸免此“难”(SARS-free),这是WHO下的结论,但是,也许由于过度之惊慌,造成了误 判,以为染SARS疾病者就在身边。当印度卫生部长被问及是否明白WHO为 SARS下的定义时,该部长的回答令人发笑:the government wanted to be“
文摘The clash between the Brazilian president and the local authorities sent confusing signals regarding the COVID-19 pandemic to the population.Many debates were raging across social media on whether people should stay home or keep the economy running.Nevertheless,with the intensification of the pandemic and the prolonged restrictive measures,many people started to disrespect social distancing and,with the premature reopening of the economy in many cities,agglomerate.Even with restrictions on agglomeration by state and municipal governments and the cancellation of traditional New Year’s Eve events in Brazil,the turn of the year was characterized by illegal agglomeration in various states.The aim of the article is to explain why there were so many illegal New Year’s parties—known as CovidFests—in Brazil during the COVID-19 pandemic,despite the restrictions on agglomeration.The main argument indicates that CovidFests are connected to the lack of social belonging in Brazilian society,which reflects the ongoing necropolitics in the country and the dissemination of a furious melancholy,when discouragement becomes destructive.
文摘Incensed by biased Western media coverage of the riots in Lhasa,Chinese people have taken to the streets abroad to protest Western media coverage of the Olympic torch disruptions and riots in Tibet has angered ordi- nary Chinese people. Cable News Network(CNN)in the United States has come under particular criticism.Chinese people lambasted CNN for twice referring to the Tibet
