As the big world hotel chains,Accor,InterContinental and Starwood Group took the different internationalization strategy to spread their hotels all over the world.This paper compared the strategies of them in the aspe...As the big world hotel chains,Accor,InterContinental and Starwood Group took the different internationalization strategy to spread their hotels all over the world.This paper compared the strategies of them in the aspect of location,chain developing,affiliation,innovation and operating.From the result of the comparison,other worldwide hotel chain groups could be suggested when they build their internationalization strategies.展开更多
Microwave imagers have attracted great interest because of their non-contact and high-penetration advantages,but conventional microwave imagers require complex hardware structures and time-consuming data acquisition,l...Microwave imagers have attracted great interest because of their non-contact and high-penetration advantages,but conventional microwave imagers require complex hardware structures and time-consuming data acquisition,limiting their further applications in real-time sensing.To solve the limitations,we propose a Ku-band microwave staring imager for front-view imaging with a single receiver based on a 1-bit transmissive programmable metasur-face.By dynamically changing the coding patterns on the metasurface according to the Hadamard matrix,the imager can reconstruct the given images according to the data collected by the receiver.With a simple hardware architecture and a compact structure,the proposed imager fulfills high-quality image reconstructions with high recognition accuracy in the task of microwave sensing,implying its broad application prospects,such as in security inspection,sensing,and medical examination.展开更多
Jindi Chemical Sci-tech Co.,Ltd.(PLD),the Shijiazhuang of Hebei province-based plastic flameretardant expert,entered an accord with Korea GNC Company on July 10th to jointly build aplastic flame retardant plant in Korea.
文摘As the big world hotel chains,Accor,InterContinental and Starwood Group took the different internationalization strategy to spread their hotels all over the world.This paper compared the strategies of them in the aspect of location,chain developing,affiliation,innovation and operating.From the result of the comparison,other worldwide hotel chain groups could be suggested when they build their internationalization strategies.
基金National Natural Science Foundation of China(62288101)China National Postdoctoral Program for Innovative Talents(BX20200080)+3 种基金China National Postdoctoral Science Foundation(2021M690603)National Key Research and Development Program of China(2023YFB3811300,2023YFB3811302)Natural Science Foundationof Jiangsu province−(BK20210210,BK20212002)FundamentalResearch Funds for the Central Universities(2242023K5002).
文摘Microwave imagers have attracted great interest because of their non-contact and high-penetration advantages,but conventional microwave imagers require complex hardware structures and time-consuming data acquisition,limiting their further applications in real-time sensing.To solve the limitations,we propose a Ku-band microwave staring imager for front-view imaging with a single receiver based on a 1-bit transmissive programmable metasur-face.By dynamically changing the coding patterns on the metasurface according to the Hadamard matrix,the imager can reconstruct the given images according to the data collected by the receiver.With a simple hardware architecture and a compact structure,the proposed imager fulfills high-quality image reconstructions with high recognition accuracy in the task of microwave sensing,implying its broad application prospects,such as in security inspection,sensing,and medical examination.
文摘Jindi Chemical Sci-tech Co.,Ltd.(PLD),the Shijiazhuang of Hebei province-based plastic flameretardant expert,entered an accord with Korea GNC Company on July 10th to jointly build aplastic flame retardant plant in Korea.
