Results 41 to 50 of about 13,237 (207)

Dynamic Capabilities as Drivers of Circular Business Models: Exploring Direct and Indirect Relationships

Journal of Product Innovation Management, EarlyView.
ABSTRACT Academic Summary Despite the urgent need for a circular economy, firms' transition from linear to circular business models (CBMs) remains slow. While previous research suggests that dynamic capabilities are the key drivers of this transition, it assumes a direct link, overlooking that these capabilities can facilitate change but do not ...
Jörn Block, Thomas Clauss, Matheus Franco, Timo Lemcke, Hubert Speth   +4 more
wiley   +1 more source

Forest certification management experience in Asia Pacific and Europe: A case study of Malaysia and Sweden

Journal of Forest Science
The forest certification is a voluntary programme to ensure that the timber harvested from forests is processed in a sustainable manner by following specific standards.
Shah Badri Mohd Nor, Ahmad Fariz Mohamed, Shamsul Khamis   +2 more
doaj   +1 more source

Water vapor exchange system installed in a polymer electrolyte fuel cell to enhance the performance without humidification

Nihon Kikai Gakkai ronbunshu, 2014
Polymer electrolyte fuel cells (PEFCs) generally have external humidifiers to supply humidified hydrogen and oxidant gases, preventing dehydration of the membrane electrode assembly (MEA).
Tatsumi KITAHARA, Hironori NAKAJIMA, Kazuto TSUDA   +2 more
doaj   +1 more source

The Influence of Nafion Content on Catalytic Oxygen Reduction Performance of High Surface Carbons

ChemCatChem, Volume 18, Issue 3, 12 February 2026.
ABSTRACT High efficiency and selectivity of the electrocatalytic oxygen reduction reaction (ORR) requires fast proton, electron, and oxygen supply to the catalytic center. The kinetics of these processes depend largely on the preparation of the catalyst‐containing electrode.
Stefan Röher, Lairana Lima Duarte, Alexandra Apel, Julia Grothe, Stefan Kaskel, Inez M. Weidinger   +5 more
wiley   +1 more source

Fuel Cell Modeling and Simulations

CHIMIA, 2004
Fundamental and phenomenological models for cells, stacks, and complete systems of PEFC and SOFC are reviewed and their predictive power is assessed by comparing model simulations against experiments.
John Mantzaras, Nordahl Autissier, Diego Larrain, Andreas K. Chaniotis, Dimos Poulikakos, Stephan M. Senn, Faegheh Hajbolouri, Bernhard Andreaus, Ludwig J. Gauckler, Michel Prestat, Wilhelm Brandstätter, Markus Roos, Felix N. Büchi, Stefan A. Freunberger, François Maréchal   +14 more
doaj   +1 more source

PEFC- ja FSC-metsäsertifiointistandardien vertailu sekä ekologinen vaikuttavuus lainsäädännön ja tutkimustiedon valossa

Metsätieteen aikakauskirja
Katsauksessa tarkasteltiin FSC- ja PEFC-metsäsertifiointistandardien vaatimuksia Suomen talousmetsien monimuotoisuuden turvaamiseksi. Vertailimme standardeja keskenään sekä suhteessa aiempiin standardeihin, lainsäädäntöön ja ekologiseen tutkimustietoon ...
Pekka Punttila, Tiina Piiroinen, Minna Pappila, Mari Annala   +3 more
doaj   +1 more source

Phase change of methanol solution in a microchannel for a reformer using low temperature exhaust heat

Nihon Kikai Gakkai ronbunshu, 2017
Compact power generation systems which consist of methanol reformer and Polymer Electrolyte Fuel Cell (PEFC) are greatly required as emergency power source.
Suguru UEMURA, Katuyuki FUKAI, Keisuke TABATA, Shuichiro HIRAI   +3 more
doaj   +1 more source

Power Generation Characteristics of Polymer Electrolyte Fuel Cells Using Carbon Nanowalls as Catalyst Support Material

C, 2022
We evaluated the power generation characteristics of a polymer electrolyte fuel cell (PEFC) composed of Pt-supported carbon nanowalls (CNWs) and a microporous layer (MPL) of carbon black on carbon paper (CP) as catalyst support materials.
Takayuki Ohta, Hiroaki Iwata, Mineo Hiramatsu, Hiroki Kondo, Masaru Hori   +4 more
doaj   +1 more source

Political Science's Engagement With the Sustainability Challenge: A Semi‐Systematic Review of the Voluntary Sustainability Standards (VSS) Governance Literature

Sustainable Development, Volume 33, Issue S1, Page 459-474, November 2025.
ABSTRACT The implications of sustainable development are far reaching, and yet many areas of academic scholarship were slow to deeply engage with it. This is a problem because, in practical terms, it can generate a false sense of calm, of business as usual, and a failure to rise to the integrative challenge of balancing the trade‐offs across ...
Fred Gale, Daniel Goodwin, Heather Lovell, Hannah Murphy, Kim Beasy, Marion Schoen   +5 more
wiley   +1 more source

Determination of optimal parameters for dual-layer cathode of polymer electrolyte fuel cell using computational intelligence-aided design. [PDF]

PLoS ONE, 2014
Because of the demands for sustainable and renewable energy, fuel cells have become increasingly popular, particularly the polymer electrolyte fuel cell (PEFC). Among the various components, the cathode plays a key role in the operation of a PEFC.
Yi Chen, Weina Huang, Bei Peng
doaj   +1 more source