نتایج جستجو برای: cross efficiency
تعداد نتایج: 866370 فیلتر نتایج به سال:
Journal:
:IOP Conference Series: Earth and Environmental Science
2019
Journal:
:International Journal of Fluid Machinery and Systems
2011
Journal:
:Journal of Physics: Conference Series
2021
Journal:
:Journal of Animal Science
1976
Journal:
:Value in Health
2016
Journal:
:Crystals
2022
Metamaterial-based polarization converters, which have all kinds of polarizations realizable via adjusting metamaterial parameters, been springing up at an increasing rate. However, the reported metamaterial-based converters suffer from either limited bandwidth or low conversion ratios. In this study, a converter consisting multilayer copper split-ring resonators and ground separated by dielect...
Journal:
:Tarım Ekonomisi Dergisi
2019
Journal:
:The Journal of Korea Information and Communications Society
2011
Journal:
:Frontiers in Psychology
2018
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