Editorial: Special Issue on “Sustainable Green Environment (SGE)”

Wireless Personal Communications -     

Guest Editorial——TTA Special Section on Terahertz Materials and Devices

Lying between radio frequency and infrared radiation,terahertz(THz)wave encounters lots of difficulties to produce,detect,transmit,and modulate.Great efforts have been made to construct THz devices,including sources,detectors,switches,modulators,lenses,and filters.However,only moderate progresses have been made in THz generation and detection.Furthermore,the devices and techniques to control and manipulate THz waves are still in its infancy.Therefore,it is still a challenge to date to     

ZTE Communications Call for Papers Special Issue on Using Artificial Intelligence in Internet of Things Guest Editors： Fuji Ren,Yu Gu

Internet of Things has received much attention over the past de- cade. With the rapid increase in the use of smart devices, we are now able to collect big data on a daily basis. The data we are gather- ing and related problems are becoming more complex and uncer- tain. Researchers have therefore turned to AI as an efficient way of dealing with the problems created by big data. This special issue of ZTE Communications will be dedicated to development, trends, challenges, and current practices in artificial intelligence for the Internet of Things. Position papers, technology overviews, and case studies are all welcome. Appropriate topics include but are not limited to：     

Recent Developments on High-Power Gyrotrons—Introduction to This Special Issue

Gyrotrons with output powers of several 100 kW are mainly used as high-power millimeter (mm)-wave sources for electron cyclotron resonance heating (ECRH), electron cyclotron current drive (ECCD), stability control and diagnostics of magnetically confined plasmas for generation of energy by controlled thermonuclear fusion. Other applications include ECR ion sources, materials processing and plasma chemistry, high-resolution Doppler radar, radar ranging and imaging in atmospheric and planetary science, active denial systems, as well as detection of concealed radioactive materials. The present review summarizes the status of recent developments on high-power gyrotrons and introduces this Special Issue on Gyrotrons.