Overabundant lighting has become another pollution source in the Chinese cities The glow of electric lights illuminating the nights of ever-brighter cities has been regarded as one of the signs of prosperity and moder...Overabundant lighting has become another pollution source in the Chinese cities The glow of electric lights illuminating the nights of ever-brighter cities has been regarded as one of the signs of prosperity and modern civilization.展开更多
More white-collar workers consider leaving major metropolises to find opportunities in small and medium-sized cities The energy and excitement of first-tier cities, including Beijing, Shanghai, Guangzhou and Shenzhen ...More white-collar workers consider leaving major metropolises to find opportunities in small and medium-sized cities The energy and excitement of first-tier cities, including Beijing, Shanghai, Guangzhou and Shenzhen in Guangdong Province, have long served as magnets attracting enthusiastic young people. But recent surveys have overturned the perception of this urban draw.展开更多
Today,Internet of Things(IoT)is a technology paradigm which convinces many researchers for the purpose of achieving high performance of packets delivery in IoT applications such as smart cities.Interconnecting various...Today,Internet of Things(IoT)is a technology paradigm which convinces many researchers for the purpose of achieving high performance of packets delivery in IoT applications such as smart cities.Interconnecting various physical devices such as sensors or actuators with the Internet may causes different constraints on the network resources such as packets delivery ratio,energy efficiency,end-to-end delays etc.However,traditional scheduling methodologies in large-scale environments such as big data smart cities cannot meet the requirements for high performance network metrics.In big data smart cities applications which need fast packets transmission ratio such as sending priority packets to hospitals for an emergency case,an efficient schedulingmechanism ismandatory which is the main concern of this paper.In this paper,we overcome the shortcoming issues of the traditional scheduling algorithms that are utilized in big data smart cities emergency applications.Transmission information about the priority packets between the source nodes(i.e.,people with emergency cases)and the destination nodes(i.e.,hospitals)is performed before sending the packets in order to reserve transmission channels and prepare the sequence of transmission of theses priority packets between the two parties.In our proposed mechanism,Software Defined Networking(SDN)with centralized communication controller will be responsible for determining the scheduling and processing sequences for priority packets in big data smart cities environments.In this paper,we compare between our proposed Priority Packets Deadline First scheduling scheme(PPDF)with existing and traditional scheduling algorithms that can be used in urgent smart cities applications in order to illustrate the outstanding network performance parameters of our scheme such as the average waiting time,packets loss rates,priority packets end-to-end delay,and efficient energy consumption.展开更多
Some scholars concerns about the conflicts between Marie and Lilla, but few of them studies the conflicts between femaleand male in the novel. In the novel, Marie's suffering is not only from the fraudulence of he...Some scholars concerns about the conflicts between Marie and Lilla, but few of them studies the conflicts between femaleand male in the novel. In the novel, Marie's suffering is not only from the fraudulence of her sister, but also from the oppression ofmale by the perspective of feminism.In the family, it implies that she is oppressed by male, which can be understood from the differ-ence of their jobs and the traditional image of her mother, while in the society, she suffers a lot from Jansen, which can be seen fromthe descriptive perspective of appearance of Marie, the dialogue between waitress and Jansen, the dialogue between Marie and Jan-sen as well as Jansen's decision to the leaving of Marie. The double oppression of Marie's suffering both reflects the unequal posi-tion of male and female.By this analysis, it can impulse female to improve themselves and it also calls on female to get along wellwith male by the appropriate way.展开更多
Shenzhen Universiade unites the world’s young people through sports with none of the usual hoop-la, no fireworks, no grand performances by celebrities and superstars, the Shenzhen Summer Universiade lowered the curta...Shenzhen Universiade unites the world’s young people through sports with none of the usual hoop-la, no fireworks, no grand performances by celebrities and superstars, the Shenzhen Summer Universiade lowered the curtain on a big party for youth and college students on August 23.展开更多
文摘Overabundant lighting has become another pollution source in the Chinese cities The glow of electric lights illuminating the nights of ever-brighter cities has been regarded as one of the signs of prosperity and modern civilization.
文摘More white-collar workers consider leaving major metropolises to find opportunities in small and medium-sized cities The energy and excitement of first-tier cities, including Beijing, Shanghai, Guangzhou and Shenzhen in Guangdong Province, have long served as magnets attracting enthusiastic young people. But recent surveys have overturned the perception of this urban draw.
基金This study is supported through Taif University Researchers Supporting Project Number(TURSP-2020/150),Taif University,Taif,Saudi Arabia.
文摘Today,Internet of Things(IoT)is a technology paradigm which convinces many researchers for the purpose of achieving high performance of packets delivery in IoT applications such as smart cities.Interconnecting various physical devices such as sensors or actuators with the Internet may causes different constraints on the network resources such as packets delivery ratio,energy efficiency,end-to-end delays etc.However,traditional scheduling methodologies in large-scale environments such as big data smart cities cannot meet the requirements for high performance network metrics.In big data smart cities applications which need fast packets transmission ratio such as sending priority packets to hospitals for an emergency case,an efficient schedulingmechanism ismandatory which is the main concern of this paper.In this paper,we overcome the shortcoming issues of the traditional scheduling algorithms that are utilized in big data smart cities emergency applications.Transmission information about the priority packets between the source nodes(i.e.,people with emergency cases)and the destination nodes(i.e.,hospitals)is performed before sending the packets in order to reserve transmission channels and prepare the sequence of transmission of theses priority packets between the two parties.In our proposed mechanism,Software Defined Networking(SDN)with centralized communication controller will be responsible for determining the scheduling and processing sequences for priority packets in big data smart cities environments.In this paper,we compare between our proposed Priority Packets Deadline First scheduling scheme(PPDF)with existing and traditional scheduling algorithms that can be used in urgent smart cities applications in order to illustrate the outstanding network performance parameters of our scheme such as the average waiting time,packets loss rates,priority packets end-to-end delay,and efficient energy consumption.
文摘Some scholars concerns about the conflicts between Marie and Lilla, but few of them studies the conflicts between femaleand male in the novel. In the novel, Marie's suffering is not only from the fraudulence of her sister, but also from the oppression ofmale by the perspective of feminism.In the family, it implies that she is oppressed by male, which can be understood from the differ-ence of their jobs and the traditional image of her mother, while in the society, she suffers a lot from Jansen, which can be seen fromthe descriptive perspective of appearance of Marie, the dialogue between waitress and Jansen, the dialogue between Marie and Jan-sen as well as Jansen's decision to the leaving of Marie. The double oppression of Marie's suffering both reflects the unequal posi-tion of male and female.By this analysis, it can impulse female to improve themselves and it also calls on female to get along wellwith male by the appropriate way.
文摘Shenzhen Universiade unites the world’s young people through sports with none of the usual hoop-la, no fireworks, no grand performances by celebrities and superstars, the Shenzhen Summer Universiade lowered the curtain on a big party for youth and college students on August 23.