Results 1 to 10 of about 7,048,114 (301)

High-specific-power flexible transition metal dichalcogenide solar cells [PDF]

open access: yesNature Communications, 2021
Ultrathin transition metal dichalcogenides (TMDs) hold promise for next-generation lightweight photovoltaics. Here, the authors demonstrate the first flexible high power-per-weight TMD solar cells with notably improved power conversion efficiency.
Koosha Nassiri Nazif   +15 more
doaj   +2 more sources

High specific power electrical machines: A system perspective [PDF]

open access: yesCES Transactions on Electrical Machines and Systems, 2019
There has been a growing need for high specific power electrical machines for a wide range of applications. These include hybrid/electric traction applications, and aerospace applications.
Ayman El-Refaie, Mohamed Osama
doaj   +3 more sources

Power Indices under Specific Multicriteria Status

open access: yesGames, 2023
By considering the maximal efficacy among allocation vectors, we define two power indices under specific multicriteria conditions. Additionally, we introduce a reduction approach to the axiomatic framework for these power indices. Furthermore, we propose
Yu-Hsien Liao
doaj   +3 more sources

Analysis and Synthesis in the Design of Magnetic Switching Electric Machines

open access: yesActuators, 2021
A systematic approach to the design of electrical machines is implemented by solving problems of analysis and synthesis in various combinations at different stages and stages of design. The questions of the formulation and implementation of synthesis and
Nikolay Shaitor   +2 more
doaj   +1 more source

Fabrication of rGO/SrSeO4 nanocomposite as an electrode material with enhanced specific power for supercapacitor applications

open access: yesJournal of Taibah University for Science, 2021
Fossil fuels are the major source of energy in the world, which are being depleted day by day. Fossil fuels are also polluting the environment by releasing greenhouse gases such as carbon dioxide.
Ruqiya Sehrish Gohar   +9 more
doaj   +1 more source

Functionalized Carbon Nanotube and MnO2 Nanoflower Hybrid as an Electrode Material for Supercapacitor Application

open access: yesMicromachines, 2021
Functionalized carbon nanotube (FCNT) and Manganese Oxide (MnO2) nanoflower hybrid material was synthesized using hydrothermal technique as a promising electrode material for supercapacitor applications.
Sagar Mothkuri   +5 more
doaj   +1 more source

Design of SiC-Si Hybrid Interleaved 3-Phase 5-Level E-Type Back-to-Back Converter

open access: yesIEEE Open Journal of Power Electronics, 2023
In modern applications, such as variable frequency electric drives, aircraft propulsion, electric vehicles, and uninterruptible power supply units, high power-dense, and efficient AC-AC power converters are the key to reducing power losses, thus limiting
Marco di Benedetto   +2 more
doaj   +1 more source

Water Adsorption Dynamics on Metal–Organic Framework MOF-801: Comparative Study of Loose and Glued Grains, and Coatings

open access: yesNanomaterials, 2023
Adsorption heat transformation and storage (AHTS) is an environmentally benign and energy-saving alternative to common compression chillers and heat pumps.
Marina Solovyeva, Larisa Gordeeva
doaj   +1 more source

Enhancing the Specific Power of a PEM Fuel Cell Powered UAV with a Novel Bean-Shaped Flow Field

open access: yesEnergies, 2021
One of the marketing challenges of unmanned aerial vehicles (UAVs) for various applications is enhancing flight durability. Due to the superior characteristics of proton exchange membrane fuel cells (PEMFCs), they have the potential to reach a longer ...
Somayeh Toghyani   +2 more
doaj   +1 more source

PROVIDING TECHNICAL PARAMETERS OF RESISTIVE CABLES OF THE HEATING FLOOR SYSTEM WITH PRESERVATION OF THERMAL RESISTANCE OF INSULATION

open access: yesElectrical engineering & Electromechanics, 2020
Introduction. The main purpose of resistive cables is to convert the current flowing through the cable into heat. The maximum operating temperature of the conductive core should not exceed 100 °C.
G. V. Bezprozvannych   +3 more
doaj   +1 more source

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