Results 11 to 20 of about 9,364,788 (352)

Three dimensional architected thermoelectric devices with high toughness and power conversion efficiency. [PDF]

open access: yesNat Commun, 2023
The potential of thermoelectric devices is typically hindered by heat stagnation and poor mechanical strength, which degrade their performance. Here, the authors demonstrate larger temperature gradients and higher mechanical strength by developing 3D ...
Karthikeyan V   +7 more
europepmc   +2 more sources

Biomimetic Nanocomposite Membranes with Ultrahigh Ion Selectivity for Osmotic Power Conversion. [PDF]

open access: yesACS Cent Sci, 2021
Ion transport in nanoconfinement exhibits significant features such as ionic rectification, ionic selectivity, and ionic gating properties, leading to the potential applications in desalination, water treatment, and energy conversion.
Chen J   +7 more
europepmc   +2 more sources

Power Conversion and Its Efficiency in Thermoelectric Materials. [PDF]

open access: yesEntropy (Basel), 2020
The basic principles of thermoelectrics rely on the coupling of entropy and electric charge. However, the long-standing dispute of energetics versus entropy has long paralysed the field.
Feldhoff A.
europepmc   +2 more sources

Photochromic dye-sensitized solar cells with light-driven adjustable optical transmission and power conversion efficiency

open access: yesNature Energy, 2020
Quentin Huaulmé   +10 more
semanticscholar   +3 more sources

Projecting GaN HEMTs lifetimes under typical stresses commonly observed in DC-DC converters

open access: yesPower Electronic Devices and Components, 2023
DC-DC converters exist in virtually every application of modern power electronics. Due to small die size, low on-resistance, and low parasitic capacitance, GaN power devices offer superior conversion efficiency and record-setting power density.
Shengke Zhang   +9 more
doaj   +1 more source

Overview of Talkative Power Conversion Technologies

open access: yesIEEE Open Journal of Power Electronics, 2023
Power Line Communication (PLC) and Simultaneous Wireless Information and Power Transfer (SWIPT) are popular examples of applications, where power and information are transmitted simultaneously.
M. Liserre   +4 more
semanticscholar   +1 more source

Compound Fault Feature Extraction of Wind Power Gearbox Based on DRS and Improved Autogram

open access: yesZhongguo dianli, 2023
Compound fault feature extraction is the key to analyzing the root cause of wind power gearbox faults. A compound fault feature extraction method based on DRS and improved Autogram is proposed.
Haifei MA   +4 more
doaj   +1 more source

Nonlinear Dynamic Characteristics of Multidisk Rod Fastening Rotor with Axial Unbalance Mass Distribution

open access: yesShock and Vibration, 2022
During long-term operation, the blades of rod fastening rotor are very prone to fault and may cause uneven axial mass distribution. The dynamic characteristics of a multidisk rod fastening rotor with axial unbalance mass distribution are studied.
Li Zhao   +3 more
doaj   +1 more source

Electrical Double Layer Mechanism Analysis of PEM Water Electrolysis for Frequency Limitation of Pulsed Currents

open access: yesEnergies, 2021
This paper proposes a method for improving hydrogen generation using pulse current in a proton exchange membrane-type electrolyzer (PEMEL). Traditional methods of electrolysis using direct current are known as the simplest approach to produce hydrogen ...
Jae-Hoon Kim   +4 more
doaj   +1 more source

Evaluating Piezoelectric Materials and Vibration Modes for Power Conversion

open access: yesIEEE transactions on power electronics, 2022
Piezoelectric components offer several potential advantages to power conversion including high power density and efficiency capabilities compared to magnetics at small scales.
J. D. Boles   +5 more
semanticscholar   +1 more source

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