Results 51 to 60 of about 13,237 (207)
ChemElectroChem, Volume 12, Issue 20, October 16, 2025.The graphical abstract shows that liquid water as well as water vapor is present inside the catalyst layer (CL) and the gas diffusion layer (GDL) even at temperature above 100 °C, especially near the outlet as well as at the edges of the rib and under the rib.
Christopher L. Schreiber +5 more
wiley +1 more source
Numerical Investigation of Cross Flow on the Performance of Polymer Electrolyte Fuel Cell
Journal of Thermal Science and Technology, 2013 A three dimensional, single-phase, isothermal study of a polymer electrolyte fuel cell (PEFC) was conducted to investigate the mechanism of convective flow effect on the performance of fuel cell.
K. M. SALAH UDDIN, Nobuyuki OSHIMA
doaj +1 more source
Advanced Energy and Sustainability Research, Volume 6, Issue 9, September 2025.This review highlights advanced methods for detecting and managing over‐humidification in polymer electrolyte fuel cells (PEFCs), emphasizing innovative sensors, simulation techniques, and imaging methods. By addressing the impact of water management on fuel‐cell performance and durability, this study outlines practical and sustainable solutions for ...
Maximilian Käfer +2 more
wiley +1 more source
Journal of Thermal Science and Technology, 2010 To point out the dominant factor of mass, heat and electric charge transfer phenomena in a single cell of PEFC for the promotion of power generation performance, the impact of gas channel pitch on in-plane distribution of mass concentration and ...
Akira NISHIMURA +7 more
doaj +1 more source
Grammars with two-sided contexts
, 2014 In a recent paper (M. Barash, A. Okhotin, "Defining contexts in context-free grammars", LATA 2012), the authors introduced an extension of the context-free grammars equipped with an operator for referring to the left context of the substring being ...
Barash, Mikhail, Okhotin, Alexander
core +2 more sources
Children and families bill : amendments to be moved in grand committee [PDF]
, 2013 Enabling power: Education Act 1996, s. 537A (4) (5) (6). Issued: 29.05.2013. Made: 20.05.2013. Laid: 29.05.2013. Coming into force: 28.06.2013. Effect: S.I. 2009/1563 amended.
core +4 more sources
Dependence of electroosmosis on polymer structure in proton exchange membranes
Mechanical Engineering Journal, 2017 Effects of polymer structure on the electroosmosis in proton exchange membranes (PEMs) have been investigated using a reactive molecular dynamics simulation.
Takuya MABUCHI, Takashi TOKUMASU
doaj +1 more source
Subfreezing operation of polymer electrolyte fuel cells: Ice formation and cell performance loss [PDF]
, 2012 In this work, we investigate the cold-start operation of polymer electrolyte fuel cells (PEFCs) through high-resolution neutron radiography, experimental testing, theoretical evaluation, and comparison with model prediction.
Borup, RL +4 more
core +2 more sources
Have significant biodiversity values been protected from industrial logging across Australia?
Conservation Science and Practice, Volume 7, Issue 8, August 2025.Abstract Much of the planet's forest biodiversity is at risk from a range of threats. Threats include gaps in the protected area network and instances where these gaps are subject to intensive industrial logging. These gaps are referred to as optimal areas for protection and we sought to determine if certification schemes maintained the environmental ...
Chris Taylor +4 more
wiley +1 more source