نتایج جستجو برای: continuous beam
تعداد نتایج: 370670 فیلتر نتایج به سال:
The NASA Lewis Research Center has designed and fabricated a closed-cycle, continuous wave (CW), carbon dioxide (COj) high-power laser to support research for the indentlflcatlon and evaluation of possible high-power laser applications. The device Is designed to generate up to 70 kW of laser power In annular-shape beams from 1 to 9 cm In diameter. Electric discharge, either self-sustained or el...
A novel substrate integrated waveguide (SIW) adopting a leaky-wave antenna (LWA) for continuous beam scanning tri bands is presented. For (CBS), optimization of different parameters associated with the unit cell has been carried out. Apart from this, optimal impedance matching also obtained help characteristic waveguide. The proposed SIW LWA scans ?58° to + 59° along 14.50 dBi gain when frequen...
Cholesteric liquid crystal (CLC) has attracted intensive attention due to its ability to form a periodic helical structure with broad tunability. CLC gratings in open systems are especially promising in sensing and micromanipulation. However, there is still much to learn about the inherent mechanism of such gratings. We investigate the light-driven rotation and pitch-tuning behaviors of CLC gra...
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