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BeSO_(4)·4H_(2)O晶体生长
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作者 贺友平 苏根博 吴柏昌 《人工晶体学报》 CSCD 1991年第3期291-291,共1页
四水硫酸铍(BST)晶体是一种紫外倍频材料,它属四方品系,空间群为I4c2,a=8.02A,c=10.75A。该晶体可相位匹配,透过波段为190~1400nm,透过率高达90%,损伤阈值高,离散角大,双折射温度变化极小,粉末倍频信号为0.5×ADP,它是目前四倍频晶... 四水硫酸铍(BST)晶体是一种紫外倍频材料,它属四方品系,空间群为I4c2,a=8.02A,c=10.75A。该晶体可相位匹配,透过波段为190~1400nm,透过率高达90%,损伤阈值高,离散角大,双折射温度变化极小,粉末倍频信号为0.5×ADP,它是目前四倍频晶体的候选材料。 展开更多
关键词 晶体生长 透过波段 透过率 i4c2 四方品系
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Beyond 5G Networks: Integration of Communication, Computing, Caching, and Control 被引量:5
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作者 Musbahu Mohammed Adam Liqiang Zhao +1 位作者 Kezhi Wang Zhu Han 《China Communications》 SCIE CSCD 2023年第7期137-174,共38页
In recent years,the exponential proliferation of smart devices with their intelligent applications poses severe challenges on conventional cellular networks.Such challenges can be potentially overcome by integrating c... In recent years,the exponential proliferation of smart devices with their intelligent applications poses severe challenges on conventional cellular networks.Such challenges can be potentially overcome by integrating communication,computing,caching,and control(i4C)technologies.In this survey,we first give a snapshot of different aspects of the i4C,comprising background,motivation,leading technological enablers,potential applications,and use cases.Next,we describe different models of communication,computing,caching,and control(4C)to lay the foundation of the integration approach.We review current stateof-the-art research efforts related to the i4C,focusing on recent trends of both conventional and artificial intelligence(AI)-based integration approaches.We also highlight the need for intelligence in resources integration.Then,we discuss the integration of sensing and communication(ISAC)and classify the integration approaches into various classes.Finally,we propose open challenges and present future research directions for beyond 5G networks,such as 6G. 展开更多
关键词 4C 6G integration of communication computing caching and control i4c multi-access edge computing(MEC)
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