Results 121 to 130 of about 352,442 (309)

Fuel channel bore estimation for onload pressurised fuel grab load trace data [PDF]

, 2018
Accurate fuel channel bore estimation enables information about the health of the graphite core of an advanced gas-cooled reactor to be inferred. This was extensively explored previously for offload depressurised fuel grab load trace (FGLT) data: by isolating the frictional component of the FGLT and using inspection data as a ground truth, a linear ...
Young, Andrew, Aylward, William, Murray, Paul, West, Graeme, McArthur, Stephen, Rudge, Anna   +5 more
openaire  

Effect of anode flow field design in direct methanol fuel cells: preliminary studies [PDF]

, 2008
The direct methanol fuel cells are promising candidates for portable power sources due to their high energy density, however studies continue in order to give solutions for a number of drawbacks that affect cell performance and efficiency. Achieving good
Malaquias, J., Pinto, A. M. F. R., Rangel, C. M., Schock, L., Silva, R. A.   +4 more
core  

Structural and Chemical Engineering of Sub‐Nanochannel Membranes Toward Ion Selectivity

Advanced Functional Materials, EarlyView.
This review summarizes recent advances in structural and chemical engineering of sub‐nanochannels for ion selectivity. We first introduce fundamental ion transport mechanisms within sub‐nanochannels, followed by strategies to tune pore size, geometry, and surface functionalities, categorized into charge‐based, ion‐recognition, hydrophilic bonding, and ...
Yuyu Su, Huacheng Zhang, Tamar L. Greaves, Qi Han, Weiwei Lei, Dan Liu   +5 more
wiley   +1 more source

High performance PEM fuel cell catalyst layers with hydrophobic channels

International Journal of Hydrogen Energy, 2015
Abstract Polymer electrolyte membrane fuel cell performance has been enhanced with efficient water management by modification of the structure of the catalyst layer. Polytetrafluoroethylene (PTFE) was added to the catalyst layer structure by using two-step catalyst ink preparation method.
Avcioglu, Gokce S., Ficicilar, Berker, Bayrakceken, Ayse, Eroglu, Inci   +3 more
openaire   +3 more sources

Efficient Membranes Made of a Nanohybrid of Fluorine‐Doped Carbon Dots Coupled With Metal Organic Framework for High‐Performance Vanadium Redox Flow Battery

Advanced Functional Materials, EarlyView.
A sulfonated poly(ether ether ketone)‐based hybrid membrane is fabricated with fluorine‐doped carbon dot (FCD) and functionalized metal organic framework (MIL−101−NH2). The novel design reduces unwanted ion crossover while maintaining a sufficient proton transport pathway.
Tan Trung Kien Huynh, Nayanthara P. S., Muhammad Fawad Khan, Tong Yang, Zijian Cai, Saveen Senanayake, Yang Yang, Jiaye Ye, Hongxia Wang   +8 more
wiley   +1 more source

Development of Fuel Channel Inspection System in PHWR

Journal of the Korean Society for Nondestructive Testing, 2016
A pressurized heavy water reactor (PHWR) designed to refuel in service produces the energy required by nuclear fission. The fuel channel consists of components such as a pressure tube which directly contacts the fuel and is a passage for the reactor coolant, a calandria tube which contacts the moderator and is rolled joint with calandria, and a spacer ...
Sung-Nam Choi, Seung-Ok Yang, Kwang-Il Kim, Hee-Jong Lee   +3 more
openaire   +2 more sources

On emerging micro- and nanoscale thermofluidic technologies [PDF]

, 2009
This paper was presented at the 2nd Micro and Nano Flows Conference (MNF2009), which was held at Brunel University, West London, UK. The conference was organised by Brunel University and supported by the Institution of Mechanical Engineers, IPEM, the ...
2nd Micro and Nano Flows Conference (MNF2009), Poulikakos, D   +1 more
core  

Carbon Shell‐Encapsulated PtFe Catalysts in High Temperature Polymer Electrolyte Membrane Fuel Cells: Balancing Molecular Sieving and Diffusion for Enhanced Reactant Access

Advanced Functional Materials, EarlyView.
Scanning electrochemical microscopy reveals reactant diffusion through porous carbon shells to PtFe cores, while the carbon‐encapsulated PtFe enables high‐performance HT‐PEMFC operation by sieving phosphate ions that induce catalyst poisoning. ABSTRACT High‐temperature polymer electrolyte membrane fuel cells (HT‐PEMFCs) operating at 160°C on phosphoric
Myeong‐Geun Kim, Sourabh S. Chougule, Suji Lee, Young Sang Park, Jihyun Choi, Katie Heeyum Lim, Albert S. Lee, Hyun S. Park, Namgee Jung, Sung Jong Yoo   +9 more
wiley   +1 more source

Small Extracellular Vesicles from Neural Cells: Physiological and Pathological Roles, and Potential in Neurodegenerative Therapy

Advanced Healthcare Materials, EarlyView.
Neural cell–derived small extracellular vesicles (sEVs) are emerging as pivotal mediators in neurodegenerative diseases, exerting both pathogenic and therapeutic functions. This review synthesizes current evidence on how sEVs from distinct neural cell types regulate neurodegeneration, neuroprotection, biomarker discovery, and targeted drug delivery ...
Muhammad Waqas Salim, Wei Zhang, Lyndsey Collins‐Praino, Yuling Wang, Andrew Care   +4 more
wiley   +1 more source

Sequence heterogeneity and the dynamics of molecular motors

, 2005
The effect of sequence heterogeneity on the dynamics of molecular motors is reviewed and analyzed using a set of recently introduced lattice models. First, we review results for the influence of heterogenous tracks such as a single-strand of DNA or RNA ...
Ajdari A, Bartussek R, David R Nelson, Howard J, Kolomeisky A B, Kuo S C, Luczka J, Newman M E J, Perkins T T, Yariv Kafri   +9 more
core   +1 more source