Results 91 to 100 of about 33,730 (224)

The Self-Adaptive Fuel Supply Mechanism in Micro DMFC Based on the Microvalve

Micromachines, 2019
To achieve a self-adaptive fuel supply mechanism for the micro direct methanol fuel cell (μDMFC), we designed and developed a thermal control microvalve channel structure, where we considered the relationship between the temperature characteristics,
Zhenyu Yuan, Wenhui Chuai, Zhongming Guo, Zhaoyin Tu, Fanbo Kong   +4 more
doaj   +1 more source

Heat and mass transfer effects in direct methanol fuel cell: 1D model [PDF]

, 2007
Models play an important role in fuel cell development since they facilitate a better understanding of parameters affecting the performance of fuel cells and fuel cells systems.
Falcão, D. S., Oliveira, V. B., Pinto, A. M. F. R., Rangel, C. M.   +3 more
core  

Silyl Rearrangements in Gold‐Catalyzed Transformations

European Journal of Organic Chemistry, EarlyView.
The synergy between the exceptional ability of gold catalysts to activate unsaturated substrates and the inherent tendency of organosilicon reagents to undergo silyl‐group rearrangements has unlocked a range of novel transformations, enabling access to otherwise challenging molecular architectures.
Patricia García‐Martínez, Luis A. López   +1 more
wiley   +1 more source

From Methanol concentration to thermal performance: insight into Nafion/Lignosulfonate-Hydroxyapatite composite membranes for direct Methanol fuel cell

Energy Nexus
This study evaluates the recast Nafion (rN)/lignosulfonate (LS)-hydroxyapatite (HAP) composite membranes in passive direct methanol fuel cell (DMFC) across range of methanol concentration and thermal operation.
O.S.J. Elham, S.K. Kamarudin, N. Shaari, A.M. Zainoodin, S.H. Osman, M.R. Yusof   +5 more
doaj   +1 more source

Performance of Void-Free Electrospun SPEEK/Cloisite as a Function of Degree of Dispersion State on Nanocomposite Proton Exchange Membrane for Direct Methanol Fuel Cell Application

Membranes, 2019
One of the main problems in direct methanol fuel cell (DMFC) application is methanol crossover. In order to solve the problem, an exfoliated void-free electrospun Sulfonated Poly(Ether Ether Ketone) (SPEEK)/cloisite nanocomposite membrane was developed ...
Nuha Awang, Juhana Jaafar, Ahmad Fauzi Ismail, Mohd Hafiz Dzarfan Othman, Mukhlis A. Rahman   +4 more
doaj   +1 more source

Law of corresponding states for osmotic swelling of vesicles

, 2012
As solute molecules permeate into a vesicle due to a concentration difference across its membrane, the vesicle swells through osmosis. The swelling can be divided into two stages: (a) an "ironing" stage, where the volume-to-area ratio of the vesicle ...
Angelova, Diamant, Dimova, Dordas, Döbereiner, Emir Haleva, Evans, Farago, Farago, Fournier, Haim Diamant, Haleva, Haleva, Heinrich, Helfrich, Krasteva, Linke, Litster, Mally, Marsh, Milner, Mui, Orbach, Patel, Paula, Peterlin, Peterlin, Pocivavsek, Primož Peterlin, Schmid, Seifert, Vesna Arrigler, Vitkova   +32 more
core   +1 more source

A Comprehensive Review on Nutrition, Phytochemistry, Pharmacology and Food Application Perspectives of Bioactive Rich Superfruits

Future Postharvest and Food, EarlyView.
The review critically evaluated and compared the selected superfruit phytochemistry, their bioactive composition and the key health benefits majorly emphasizing the antioxidant potential. It has highlighted the translational challenges in formulating functional foods by addressing the issues related to delivery system, bioavailability mechanism and the
Sharath Kumar Nagaraja, Javid Iqbal Mir, Mahendra Kumar Verma, Aamir Hussain Dar   +3 more
wiley   +1 more source

Aging and scaling laws in $\beta$-hydroquinone-clathrate

, 2004
The dielectric permittivity of the orientational glass methanol(x=0.73)-$\beta$-hydroquinone-clathrate has been studied as function of temperature and waiting time using different temperature-time-protocols.
A. Bray, A. Kityk, D. Fisher, D. Fisher, D. Fisher, E. Colla, E. Vincent, F. Alberici, F. Alberici, F. Alberici-Kious, F. Alberici-Kious, H. Woll, H. Woll, H. Yoshino, Heiko Rieger, K. Jonason, Klaus Knorr, L. Berthier, L. Cugliandolo, Maikel C. Rheinstädter, P. Jönsson, P. Jönsson, R. Leheny, T. Matsuo   +23 more
core   +1 more source

Experimental Factors and Techniques for Pool Boiling Heat Transfer Enhancement: A Critical Review

Heat Transfer, EarlyView.
ABSTRACT This review presents a comprehensive assessment of active strategies for enhancing pool boiling heat transfer, with a focus on techniques that do not rely solely on the boiling surface modification. It examines a broad range of methodologies including fluid additives, external fields, mechanical interventions, and thermal‐geometric tuning that
José E. Pereira, R. R. Souza, A. S. Moita   +2 more
wiley   +1 more source

Catalyst‐Free Mass Polymerization and Characterization of Bio‐Polyhydroxhyurethanes Based on Resorcinol Bis(Cyclocarbonate)

Macromolecular Materials and Engineering, EarlyView.
Non‐isocyanate polyhydroxyurethanes (PHUs) were synthesized from resorcinol bis(cyclocarbonate) and eco‐friendly diamines under mild, catalyst‐free conditions. The resulting polymers were extensively characterized for their structural, thermal, and mechanical properties, as well as processability and adhesion performance.
Federico Olivieri, Noemi Faggio, Giovanni Dal Poggetto, Chiara Santillo, Roberto Avolio, Rachele Castaldo, Mariacristina Cocca, Maria Emanuela Errico, Marino Lavorgna, Gennaro Gentile   +9 more
wiley   +1 more source