Due to the use of fossil fuels in recent decades, maritime researchers and stakeholders have started become concerned about energy efficiency environmental protection. The larger social economic facets society may suffer as a result these problems. In an effort offer remedy, this research created B-Solar Wings, double axis retractable solar panel mechanism design concept for harbor tug applicat...

This letter presents a novel and retractable ring-shaped quadrotor called Ring-Rotor that can adjust the vehicle's length width simultaneously. Unlike other morphing quadrotors with high platform complexity poor controllability, uses only one servo motor for but reduces largest dimension of vehicle by approximately 31.4%. It guarantee passibility while flying through small spaces in its compact...

BATMAN Upgrade (BUG) is a test facility for the production of negative ion beams from an RF driven plasma source devoted to supporting development ITER Neutral Beam Injection (NBI). BUG consists IPP prototype and multi-aperture grid system corresponding roughly beamlet group NBI system, i.e. arrangement 14 (vertical) ×5 (horizontal) Ø14 mm apertures, meaning beam comprised 70 individual beamlet...