Abstract: I welcome you to the fourth issue of the IEEE Communications Surveys and Tutorials in 2021. This issue includes 23 papers covering different aspects of communication networks. In particular, ...
The Maya civilization flourished in South America at approximately 2000BC. They developed a unique style of arts and architecture, astronomy, even a written language. Though their writing—and even the ...
A new study has found that the Maya civilization of Central America had a considerable impact on the surrounding environment, the effects of which are still visible. Activity from 2,000 years ago ...
Research Center for Analytical Sciences, College of Chemistry, and State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China Article Views are the COUNTER-compliant ...
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