Results 31 to 40 of about 867,842 (280)

A High-Efficiency Driver Circuit for a Gas-Sensor Microheater Based on a Switch-Mode DC-to-DC Converter

open access: yesSensors, 2020
Low power consumption is one of the critical factors for successful Internet of Things (IoT) applications. In such applications, gas sensors have become a main source of power consumption because energy conversion efficiency of the microheater is ...
Tzu-Sen Yang, Jin-Chern Chiou
doaj   +1 more source

Flexible Polymer Solar Cells with High Efficiency and Good Mechanical Stability

open access: yesInternational Journal of Photoenergy, 2022
Single-junction polymer solar cells have demonstrated exceptional power conversion efficiency. Interlayer adhesion will be critical in building flexible polymer solar cells since inorganic conveyance layers would surely break.
I. Kathir   +8 more
doaj   +1 more source

Hot Carrier Extraction Using Energy Selective Contacts and Its Impact on the Limiting Efficiency of a Hot Carrier Solar Cell

open access: yes, 2015
Extraction of charge carriers from a hot carrier solar cell using energy selective contacts, and the impact on limiting power conversion efficiency is analyzed.
Bremner, Stephen, Limpert, Steven
core   +1 more source

Quantitative stability analysis of STATCOM in voltage control mode and Enhanced control method based on voltage feedforward

open access: yesInternational Journal of Electrical Power & Energy Systems
STATCOM is a crucial device for reactive power compensation and voltage regulation. However, under weak grid conditions, oscillations may arise during voltage control (VC) mode operation due to the AC Voltage Controller (AVC), potentially jeopardizing ...
Song Zhang   +5 more
doaj   +1 more source

Optimation of Layers Thickness Design of Perovskite Solar Cell (PSC) Using GPVDM Simulation

open access: yesComputational and Experimental Research in Materials and Renewable Energy, 2019
In this research, perovskite solar cells by configuring ITO/PEDOT:PSS/CH3NH3PbI3/ZnO/Al changed to optimize their performance. Modifications are made by varying the thickness of each layer to increase the ideal thickness with an optimal power conversion ...
Dita Puspita
doaj   +1 more source

Advances in Power-to-Gas Technologies: Cost and Conversion Efficiency

open access: yesSSRN Electronic Journal, 2022
This paper examines the cost and efficiency dynamics of three prevalent Power-to-Gas technologies. Our results suggest that electrolytic hydrogen production costs will approach but not reach the U.S. Department of Energy's $1.0/kg target by 2030.
Glenk, Gunther   +2 more
openaire   +2 more sources

First-principles study of the optoelectronic properties and photovoltaic absorber layer efficiency of Cu-based chalcogenides

open access: yes, 2016
Cu-based chalcogenides are promising materials for thin-film solar cells with more than 20% measured cell efficiency. Using first-principles calculations based on density functional theory, the optoelectronic properties of a group of Cu-based ...
B. Partoens   +10 more
core   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

open access: yesFEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho   +3 more
wiley   +1 more source

Flexibility provision by virtual power line and soft open point in AC/DC distribution systems

open access: yesInternational Journal of Electrical Power & Energy Systems
The increasing penetration of photovoltaic generation will significantly challenge the voltage quality, power flow, power losses in active distribution networks.
Xiaodong Yang   +6 more
doaj   +1 more source

Potentialities of TEC topping: A simplified view of parametric effects [PDF]

open access: yes, 1980
An examination of the benefits of thermionic-energy-conversion (TEC)-topped power plants and methods of increasing conversion efficiency are discussed. Reductions in the cost of TEC modules yield direct decreases in the cost of electricity (COE) from TEC-
Morris, J. F.
core   +2 more sources

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