Results 111 to 120 of about 2,630,925 (302)

Patient-specific stopping power calibration for proton therapy planning based on single-detector proton radiography. [PDF]

, 2015
A simple robust optimizer has been developed that can produce patient-specific calibration curves to convert x-ray computed tomography (CT) numbers to relative stopping powers (HU-RSPs) for proton therapy treatment planning.
Sharp, G, Royle, G, Lu, HM, Doolan, PJ, Testa, M, Bentefour, EH   +5 more
core  

Metal pre-intercalation promotes water-mediated proton-coupled electron transfer in layered δ-MnO2 for aqueous pseudocapacitive energy storage

Nature Communications
The charge storage capacitance of δ-MnO2-based pseudocapacitors stems from a combination of bulk cation intercalation/deintercalation and surface proton chemisorption/desorption. Here, we investigate the mechanistic origins of the enhanced capacitance in
Huajie Ze, Yongkwon Song, Xijun Wang, Weiyan Ni, Xiaobing Hu, Jianan Erick Huang, Zeyan Liu, Hengzhou Liu, Xiao-Yan Li, Randall Q. Snurr, Mark C. Hersam, Ke Xie, Edward H. Sargent   +12 more
doaj   +1 more source

CO2‐to‐CO Conversion in a Gas‐Fed, Zero‐Gap, PEM Electrolyzer Enabled by Polycations and Nitrogen‐Doped Carbon‐Supported Cobalt Nanoparticles

Advanced Functional Materials, EarlyView.
A gas‐fed, zero‐gap, PEM CO2 electrolyzer is realized by incorporating PDDA+ ions onto the carbonaceous Co/N‐C electrocatalyst, with gaseous H2 and CO2 fed into the anode and cathode, respectively. Operating without an aqueous electrolyte, the system sustains a peak FECO of 65.1% at 100 mA cm−2. ABSTRACT Electrochemical carbon dioxide reduction (ECO2R)
Yuen Leong Chow, Hsi‐Wen Wu, Aimin Li, Yalou Guo, Duhong Chen, Jie Zhang, Paul A. Webley   +6 more
wiley   +1 more source

The future of interurban passenger transport - bringing citizens closer together: Symposium summary and conclusions. 18th International Symposium on Transport Economics and Policy, Madrid, Spain, 16-18 November 2009 [PDF]

, 2010
The Symposium brought together leading transport researchers from around the world to explore a range of issues under the general theme of 'the future for interurban passenger transport'.
International Transport Forum, OECD
core   +1 more source

Nature-inspired solid-state proton diode membrane for high-performance force-electric conversion

Nature Communications
Bioinspired ion channel membranes with ultrafast and directional transport capabilities, akin to biological protein-based channel, are crucial for various energy and sensing applications. However, controlling highly active protons and advancing practical
Dandan Lei, Qixiang Zhang, Yixiang Wang, Shuqi Wang, Naijia Zhao, Lei Jiang, Zhen Zhang   +6 more
doaj   +1 more source

Designing Vanadium‐Based Oxide Electrocatalysts for Water Splitting: Experimental and Mechanistic Insights with Machine Learning

Advanced Functional Materials, EarlyView.
This review establishes structure‐property‐mechanism relationships across six modification strategies for V‐based oxide water‐splitting electrocatalysts: lattice engineering, heteroatom doping, interface engineering, carbon‐based hybridization, morphology engineering, and surface reconstruction and pre‐catalyst design, where dissolution is reframed as ...
Youness El Issmaeli, Amina Lahrichi, Hoje Chun, Rafael Gómez‐Bombarelli, Bruno G. Pollet   +4 more
wiley   +1 more source

Proton conductivity enhancement in oriented, sulfonated polyimide thin films [PDF]

, 2014
Studies of proton transport in confined thin polymer electrolytes are essential for providing additional information regarding the structure-property relationships of such materials.
Nagano, Shusaku, Nagao, Yuki, Krishnan, Karthik, Iwatsuki, Hiroko, Hara, Mitsuo   +4 more
core   +1 more source

Structure and substrate ion binding in the sodium/proton antiporter PaNhaP

eLife, 2014
Sodium/proton antiporters maintain intracellular pH and sodium levels. Detailed structures of antiporters with bound substrate ions are essential for understanding how they work.
David Wöhlert, Werner Kühlbrandt, Özkan Yildiz   +2 more
doaj   +1 more source

Dimensionality‐Driven Interfacial Electronic Coupling in Carbon‐Supported Gd‐CuO Catalysts for Selective CO2 Electroreduction to Ethylene

Advanced Functional Materials, EarlyView.
The 2D carbon‐supported Gd–CuO exhibits strong interfacial electronic coupling, abundant oxygen vacancies, and highly exposed active sites, enabling efficient CO enrichment and C─C coupling toward selective and durable CO2‐to‐C2H4 conversion. ABSTRACT Copper‐based catalysts are promising for electrochemical CO2 reduction toward value‐added chemicals ...
Xueya Zhu, Binghao Shen, Mengshan Chen, Yue Hu, Ruijie Xia, Senwei Ji, Zhi Teng, Donglin Xie, Shunli Li, Xue Zhao, Hermenegildo Garciad, Yingtang Zhou   +11 more
wiley   +1 more source

Photo‐Switchable Molecular Module Programming PET Biodegradation in Aquatic Environments

Advanced Functional Materials, EarlyView.
We address the plastic durability paradox by integrating an itaconic acid–derived pyrrolidone module into polymer backbones. Sunlight in water triggers Norrish Type I ring‐opening and hydrophilization, enabling rapid biodegradation into nontoxic minerals.
Mohammad Asif Ali, Jixin Zheng, Satoshi Wakai, Jie Liu, Hidetaka Nomaki, Misato Tsukatani, Noriyuki Isobe, Jingcheng Sang, Yuriko Aoki, Hideo Okamura, Daisuke Sasaki, Chiaki Ogino, Yuzo Yamazaki, Takashi Nishikaze, Kenji Takada, Maiko K. Okajima, Tatsuo Kaneko   +16 more
wiley   +1 more source