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IEEE

Research on TR-STBC Coding Technology in Shortwave MIMO Channels

Abstract: In response to the challenges of narrow bandwidth, susceptibility to interference, and poor stability in shortwave communication, this study investigates the application of MIMO (Multiple ...
C&EN

Research on Temperature and Pressure Prediction in the Wellbore of Offshore High CO

Cooperative Innovation Center of Unconventional Oil and Gas, Yangtze University (Ministry of Education & Hubei Province), Wuhan, Hubei 430100, China State Key Laboratory of Low Carbon Catalysis and ...
ebm.bmj

Tramadol versus placebo for chronic pain: a systematic review with meta-analysis and trial sequential analysis

Objectives The objective of our study was to assess the benefits and harms of tramadol vs placebo in adults with chronic pain. Design The research method was a systematic review of randomised clinical ...
Brown University

With new analysis, Apollo samples brought to Earth in 1972 reveal exotic sulfur hidden in Moon’s mantle

Sealed Apollo 17 samples analyzed with new techniques reveal that the Moon’s interior contains sulfur isotopes unlike those found on Earth, according to research led by a Brown University scientist.
IEEE

Multi-Beam Synthesis Method Based on Space-Time Coding Metasurfaces

Abstract: Space-time coding metasurfaces can control electromagnetic waves in the spatial domain and achieve multidimensional control in space, frequency, and time domain. A space-time coding ...