Results 21 to 30 of about 37,297 (219)

Research and application status analysis of wireless power transfer technology in space solar power station

Dianzi Jishu Yingyong
Space solar power station is an effective way to efficiently use solar energy to solve the current severe energy crisis, and it is important to realize the air-to-ground transmission of electric energy from space solar power station to the earth ...
Li Xinyu, Luo Yu, Ye Weiwei, Wang Zhengzhi, Dong Shuo   +4 more
doaj   +1 more source

Investigation of orientation impact on electrical power of bifacial solar elements

Electrical engineering & Electromechanics, 2021
Purpose. To develop the integrated mathematical model for definition of bifacial solar element rational power operation in the various operation conditions caused by orientation of solar panels and power influence. Methodology.
V. V. Wysochin, V. R. Nikulshin, A. E. Denysova   +2 more
doaj   +1 more source

Reliability Analysis of the 300W GaInP/GaAs/Ge Solar Cell Array Using PCM

Journal of Astronomy and Space Sciences, 2019
Spacecraft requires sufficient power in orbit to perform its mission. So as to comply with system requirements, the sufficient power should be made by a solar cell array by photovoltaic power conversion.
Goo-Hwan Shin, Sejin Kwon, Hu-Seung Lee
doaj   +1 more source

Long-term modulation of the cosmic ray fluctuation spectrum [PDF]

Annales Geophysicae, 2006
Here we study the power level of rapid cosmic ray fluctuations in the frequency range of 10-4-1.67·10-3 Hz (periods from 10 min to about 3 h), using measurements by space-borne instruments for the period since 1974.
S. A. Starodubtsev, I. G. Usoskin, A. V. Grigoryev, K. Mursula   +3 more
doaj   +1 more source

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

Advanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein, Tiago Carneiro Gomes, Eliza Ng, Simon Rondeau‐Gagné, Tricia Breen Carmichael   +4 more
wiley   +1 more source

Implementation of improved Perturb & Observe MPPT technique with confined search space for standalone photovoltaic system

Journal of King Saud University: Engineering Sciences, 2020
Solar photovoltaic technology has been adopted by various global PV markets with 227 GW cumulative globally installed PV capacity in 2015 replacing the conventional fossil fuel energy resources.
Muhammad Kamran, Muhammad Mudassar, Muhammad Rayyan Fazal, Muhammad Usman Asghar, Muhammad Bilal, Rohail Asghar   +5 more
doaj   +1 more source

Advancing SafeWax, A Bio‐Inspired Superhydrophobic Coating, Toward Sustainable and Climate‐Resilient Crop Protection

Advanced Functional Materials, EarlyView.
This study advances SafeWax, a bio‐inspired, fatty‐acids‐based superhydrophobic coating, by identifying an agriculturally compliant solvent and revealing how solvent‐controlled Fatty acid crystallization governs the coating's microscopic structure and performance.
Niv Ben‐Arie, Iryna Polishchuk, Franziska Tauber, Coralie Schneider, Elena Prudnikov, Alessia Calora, Silvia Milita, Simona Fermani, Mireia Alejandra Ibanez Revert, Ilaria Filippetti, Claudio Ratti, Matthias Kellermeier, Markus Rueckel, Boaz Pokroy   +13 more
wiley   +1 more source

Graded Metallopolymer Structures with Shape‐Memory Abilities via DLP‐Based 3D‐Printing

Advanced Functional Materials, EarlyView.
This study presents the digital light processing (DLP) based 3D printing of graded metallopolymers featuring shape‐memory abilities. The permanent shape can be recovered in two distinct steps with excellent rates. The obtained graded prints range from simple rod‐like structures to complex hollow materials.
Michael Klein, Michael F. Agyemang, Michael Schmitt, Jürgen Popp, Martin D. Hager, Stefan Zechel, Ulrich S. Schubert   +6 more
wiley   +1 more source

Impact of geomagnetic activity on geomagnetically induced currents and reactive power losses in Zimbabwe's power grid during solar cycle 25

Scientific African
Solar Cycle 25 has been characterized by enhanced and prolonged geomagnetic activity, raising concerns about the vulnerability of electrical power systems to space weather effects.
P. Muchini, E. Matandirotya, E. Mashonjowa   +2 more
doaj   +1 more source

Optimizing NiMo Electrocatalyst Coatings for Hydrogen Evolution in Alkaline Electrolysis With The Machine Learning‐Guided Autonomous Platform CatBot

Advanced Functional Materials, EarlyView.
This work presents a closed‐loop optimization workflow integrating CatBot, an automated synthesis and testing system, to discover NiMo hydrogen‐evolution catalysts. CatBot synthesised and evaluated 228 unique samples, identifying the best performing catalysts for transfer to nickel‐foam electrodes. The best candidate is highly active, reaching 1 Acm−2${
Paolo Vincenzo Freiesleben de Blasio, Jonas Elsborg, Elif Coşkun, Andreas Burger, Pradipkumar Manubhai Leuaa, Thu Pham Anh Phan, Jin Hyun Chang, Christodoulos Chatzichristodoulou   +7 more
wiley   +1 more source