Results 1 to 10 of about 22,985,782 (339)

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

Nature 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, Alwin Daus, Jiho Hong, Nayeun Lee, Sam Vaziri, Aravindh Kumar, Frederick Nitta, Michelle E. Chen, Siavash Kananian, Raisul Islam, Kwan-Ho Kim, Jin-Hong Park, Ada S. Y. Poon, Mark L. Brongersma, Eric Pop, Krishna C. Saraswat   +15 more
doaj   +4 more sources

Large-Area, High-Specific-Power Schottky-Junction Photovoltaics from CVD-Grown Monolayer MoS₂. [PDF]

ACS Appl Mater Interfaces, 2022
The deployment of two-dimensional (2D) materials for solar energy conversion requires scalable large-area devices. Here, we present the design, modeling, fabrication, and characterization of monolayer MoS2-based lateral Schottky-junction photovoltaic (PV)
Islam KM, Ismael T, Luthy C, Kizilkaya O, Escarra MD.   +4 more
europepmc   +2 more sources

Joint specific power production in cycling: The effect of cadence and intensity. [PDF]

PLoS One, 2019
Background The effect of cadence and work rate on the joint specific power production in cycling has previously been studied, but research has primarily focused on cadences above 60 rpm, without examining the effect of low cadence on joint contribution ...
Aasvold LO, Ettema G, Skovereng K.
europepmc   +2 more sources

Electric machines with high specific power

Elektrotekhnika, 2022
Abstract Specific power, defined as the ratio of output power to total mass, is one of the generally accepted figures of merit for electrical machines. Given the growing interest in electric aircraft, developers are trying to demonstrate a high value of this indicator for their products.
N. S. Ivanov, S. V. Zhuravlev, O. A. Kharkina, M. V. Zdorova, A. A. Shirokov, M. T. Akhunov, D. D. Sosova   +6 more
openaire   +2 more sources

A Vehicle Noise Specific Power Concept [PDF]

2020 Forum on Integrated and Sustainable Transportation Systems (FISTS), 2020
The main purpose of this work is to develop a single vehicle noise emission model that uses speed as input variable and returns as output a parameter directly referable to the noise source, namely the source sound power level (L w ). The model was tested on three light-duty vehicles with different motorizations: diesel, gasoline and gasoline-electric ...
Pascale A., Fernandes P., Bahmankhah B., MacEdo E., Guarnaccia C., Coelho M. C.   +5 more
openaire   +4 more sources

A Novel Metal Foam‐Supported Solid Oxide Fuel Cell With High Specific Power [PDF]

Advanced Science
Solid oxide fuel cells (SOFCs) have emerged as a promising energy conversion technology for transportation applications, including aerospace, maritime, and new energy vehicles, owing to high energy conversion efficiency, high energy density, reliability,
Jingbo Ma, Ying Yang, Meng Ni, Yanxiang Zhang, Mufu Yan   +4 more
doaj   +2 more sources

Oxygenation, local muscle oxygen consumption and joint specific power in cycling: the effect of cadence at a constant external work rate. [PDF]

Eur J Appl Physiol, 2016
PurposeThe present study investigates the effect of cadence on joint specific power and oxygenation and local muscle oxygen consumption in the vastus lateralis and vastus medialis in addition to the relationship between joint specific power and local ...
Skovereng K, Ettema G, van Beekvelt MC.
europepmc   +2 more sources

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

CES 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

Games, 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

Actuators, 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, Michal Kelemen, Boris Yakimovich   +2 more
doaj   +1 more source