Results 71 to 80 of about 1,513,927 (352)
Stability analysis of electric power systems for ‘more electric’ aircraft [PDF]
, 2008 This paper presents a comprehensive assessment of small-signal stability for a “more-electric” aircraft power system consisting of a synchronous variable-frequency generator which supplies several power electronic controlled loads via an 18-pulse ...
Griffo, Antonio, Howe, D., Wang, J.B.
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Bioinspired Materials, Designs, and Manufacturing Strategies for Advanced Impact‐Resistant Helmets
Advanced Engineering Materials, EarlyView.This review explores how bioinspired materials, structures, and manufacturing strategies transform helmet design to achieve enhanced impact resistance. Drawing inspiration from nacre, porcupine quills, beetle exoskeletons, and skull architectures, it highlights advances in auxetic lattices, nanocomposites, and functionally graded foams.
Joseph Schlager +4 more
wiley +1 more source
MULTIFUNCTIONAL POWER QUALITY CORRECTION SYSTEM [PDF]
, 2018 Study the system of electric power quality control based on AVI with PWM in the systems of group feed of electromechanics with the direct-current ...
KOLB, Andrii
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Advanced Engineering Materials, EarlyView.This study reports the fabrication of trabecular bioactive glass scaffolds (composition “1d”: 46.1SiO2‐28.7CaO‐8.8MgO‐6.2P2O5‐5.7CaF2‐4.5Na2O wt%) through vat photopolymerization and the relevant results from mechanical testing and in vivo implantation procedures in rabbit femora, showing great promise for bone tissue engineering applications.
Dilshat Tulyaganov +8 more
wiley +1 more source
Radioisotope thermionic power supply for spacecraft [PDF]
, 1972 Power supply design for unmanned electric propulsion missions to outer planets utilizes a store of curium-244 in compact array of capsules as energy source.
Gietzen, A. J. +2 more
core +1 more source
Journal of Modern Power Systems and Clean Energy, 2019 To ensure the safety and reliability of the distribution network and adapt to the uncertain development of renewable energy sources and loads, a two-stage distributionally robust optimization model is proposed for the active distribution network (ADN ...
Lei Dong +3 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.A shape‐morphing, porous polyurethane film combines passive radiative cooling with folding to deliver multilevel heating‐and‐cooling control. High solar reflectance and midinfrared emissivity keep surfaces up to 3.5 °C cooler in direct sunlight, while photothermal triggering folds the film to absorb solar heat.
Yoon Young Choi +5 more
wiley +1 more source
Electric Propulsion for Manned Mars Exploration [PDF]
Advanced high-power electric propulsion systems can significantly enhance piloted Mars missions. An increase in the science payload delivered to Mars and the reduction of the total Earth-departure mass are the major system-level benefits of electric ...
Palaszewski, Bryan
core +1 more source
Secondary electric power generation with minimum engine bleed [PDF]
, 1983 Secondary electric power generation with minimum engine bleed is discussed. Present and future jet engine systems are compared. The role of auxiliary power units is evaluated.
Tagge, G. E.
core +1 more source
The Journal of Engineering, 2019 The complex torque coefficients (CTC) method has been widely adopted to investigate the conventional sub-synchronous oscillation (SSO) issues. However, the application of the CTC method is limited when large-scale wind power generations are integrated ...
Yijun Wang +4 more
doaj +1 more source