Results 121 to 130 of about 5,051,565 (352)

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

Analysis of Barriers in the Transition toward Sustainable Mobility in the Netherlands [PDF]

The transition toward a sustainable transportation system in the Netherlands takes place in the context of the Dutch “Transition management policy framework”.
Floortje Alkemade, Jacco Farla, Roald A.A. Suurs   +2 more
core  

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

Ion chromatographic determination of sulfur in fuels [PDF]

The sulfur content of fuels was determined using an ion chromatograph to measure the sulfate produced by a modified Parr bomb oxidation. Standard Reference Materials from the National Bureau of Standards, of approximately 0.2 + or - 0.004% sulfur, were ...
Kuivinen, D. E., Mizisin, C. S., Otterson, D. A.   +2 more
core   +1 more source

Cyclic Olefin Copolymers as Versatile Materials for Advanced Engineering Applications

Advanced Functional Materials, EarlyView.
Cyclic olefin copolymers (COCs) are presented as highly versatile materials combining tunable synthesis, excellent optical properties, and mechanical robustness. Their potential spans microfluidics, bioengineering, and advanced electronics, while emerging self‐healing and sustainable solutions highlight future opportunities.
Giulia Fredi, Norma Mallegni, Andrea Dorigato, Mario Milazzo   +3 more
wiley   +1 more source

Characteristics of response factors of coaxial gaseous rocket injectors [PDF]

The results of an experimental investigation undertaken to determine the frequency dependence of the response factors of various gaseous propellant rocket injectors subject to axial instabilities are presented.
Daniel, B. R., Janardan, B. A., Zinn, B. T.   +2 more
core   +1 more source

Анализ распреде-ления температуры в твэлах реактора БН-600 в процессе кампании топлива [PDF]

, 2017
Объектом исследования являются расчётные методы определения температурного распределения в твэле реактора БН-600. Целью работы является определение температурного распределения в твэлах различного обогащения (твэлы ЗВО, ЗСО, ЗМО) реактора БН-600 в ...
Деев, Михаил Андреевич
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

Valuing fuel diversification in optimal investment policies for electricity generation portfolios [PDF]

Optimal capacity allocation for investments in electricity generation assets can be deterministically derived by comparing technology specific long-term and short-term marginal costs.
Christoph Weber, Malte Sunderkoetter
core  

Knowledge Mapping for Open Sensemaking Communities [PDF]

, 2007
By analogy to cartographic representations of spatial worlds, Knowledge Maps provide an ‘aerial view’ of a topic by highlighting key elements and connections.
Buckingham Shum, Simon, Okada, Alexandra
core   +1 more source