Results 11 to 20 of about 13,458,796 (341)
Half-Heusler alloys as emerging high power density thermoelectric cooling materials. [PDF]
Nat Commun, 2023 To achieve optimal thermoelectric performance, it is crucial to manipulate the scattering processes within materials to decouple the transport of phonons and electrons.
Zhu H +6 more
europepmc +2 more sources
On Multiple Frequency Power Density Measurements [PDF]
Inverse Problems, 2013 We shall give a priori conditions on the illuminations $\phi_i$ such that the solutions to the Helmholtz equation $-div(a \nabla u^i)-k q u^i=0$ in \Omega, $u^i=\phi_i$ on $\partial\Omega$, and their gradients satisfy certain non-zero and linear ...
Alberti, Giovanni S.
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Grooved electrodes for high-power-density fuel cells
Nature Energy, 2023 Proton exchange membrane fuel cells (PEMFCs) are leading candidates to decarbonize the transport sector, but widespread deployment will require improvements in lifetime, fuel economy and cost.
Chung Lee +9 more
semanticscholar +1 more source
Nature Communications, 2021 Converting various types of ambient mechanical energy into electricity, triboelectric nanogenerator (TENG) has attracted worldwide attention. Despite its ability to reach high open-circuit voltage up to thousands of volts, the power output of TENG is ...
Hao Wu +3 more
semanticscholar +1 more source
Joule, 2021 Summary Thermocells hold great potential for continually harvesting waste heat to power ubiquitous electronics, but their integration is hampered by leakage risk and poor mechanical properties of liquid electrolytes.
Zhouyue Lei, Wei Gao, Peiyi Wu
semanticscholar +1 more source
Higher Power Density Amplifiers [PDF]
Journal of the Audio Engineering Society, 2018 This paper proposes a new switching strategy for switch-mode power audio amplifiers beneficial for the power dissipation in the switching devices of the power stage. The strategy is based on a thorough analysis of the loss mechanism and operating conditions of the power stage and how they relate to the audio input.
Iversen, Niels Elkjær +3 more
openaire +2 more sources
Near-field thermophotovoltaics for efficient heat to electricity conversion at high power density
Nature Communications, 2021 Thermophotovoltaic approaches that take advantage of near-field evanescent modes are being actively explored due to their potential for high-power density and high-efficiency energy conversion.
Rohith Mittapally +8 more
semanticscholar +1 more source
Exceptional power density and stability at intermediate temperatures in protonic ceramic fuel cells
Nature Energy, 2018 Sihyuk Choi +6 more
semanticscholar +3 more sources
Using conditional kernel density estimation for wind power density forecasting [PDF]
, 2012 Of the various renewable energy resources, wind power is widely recognized as one of the most promising. The management of wind farms and electricity systems can benefit greatly from the availability of estimates of the probability distribution of wind ...
Bremnes J. B. +11 more
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Rotamak confinement-power-current relationships and r.f. loading resistance [PDF]
, 1989 The relationships between input power, driven current, energy confinement, temperature and density are examined in detail for existing rotamak experiments. Additionally, the loading resistance presented to the r.f.
Bellan, P. M.
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