Results 61 to 70 of about 1,128,252 (254)

Water Organization and Hydration‐Dependent Hydroxide Transport in Anion Exchange Membranes (AEM)

Advanced Functional Materials, EarlyView.
Hydroxide transport in anion exchange membranes is governed by the organization of water within the polymer rather than by hydration alone. A hydration‐window framework is presented to unify transport, swelling, and mechanical stability, providing guidance for designing durable membranes for fuel cells and other hydroxide‐based electrochemical ...
Phumlani F. Msomi
wiley   +1 more source

Using oxygen and hydrogen stable isotopes to track the migratory movement of Sharp-shinned Hawks (Accipiter striatus) along Western Flyways of North America.

PLoS ONE, 2020
The large-scale patterns of movement for the Sharp-shinned Hawk (Accipiter striatus), a small forest hawk found throughout western North America, are largely unknown.
Elizabeth A Wommack, Lisa C Marrack, Stefania Mambelli, Joshua M Hull, Todd E Dawson   +4 more
doaj   +1 more source

Geochemical characteristics and genesis of natural gas in the Upper Triassic Xujiahe Formation in the Sichuan Basin

Open Geosciences, 2022
In recent years, the geochemical characteristics, genesis and sources of natural gas in the Upper Triassic Xujiahe Formation in the Sichuan Basin have received extensive attention, but their genesis and sources are still controversial.
Tan Kaijun, Chen Juan, Yao Jun, Wu Qingpeng, Shi Jianglong   +4 more
doaj   +1 more source

Stable isotope data of daily precipitation during the period of 2013–2017 from K-puszta (regional background monitoring station), Hungary

Data in Brief, 2021
Precipitation was collected on daily basis at K-puszta regional background monitoring station located near Kecskemét, in the western part of the Great Hungarian Plain, between 1 April 2013 and 31 December 2017 for stable hydrogen and oxygen analyses. The
György Czuppon, Emese Bottyán, Erzsébet Kristóf, Tamás Weidinger, László Haszpra, Krisztina Kármán   +5 more
doaj   +1 more source

Comprehensive inter-laboratory calibration of reference materials for δ18O versus VSMOW using various on-line high-temperature conversion techniques [PDF]

, 2009
Internationally distributed organic and inorganic oxygen isotopic reference materials have been calibrated by six laboratories carrying out more than 5300 measurements using a variety of high-temperature conversion techniques (HTC) in an evaluation ...
Weise, Stephan M., Mroczkowski, S. J., Brand, Willi A., Qi, H., Stuart-Williams, Hilary,, Geilmann, Heike, Aerts-Bijma, A. T., Weise, S. E., Jansen, H., Geilmann, Heike,, Qi, Haiping, Coplen, T. B., Bohlke, J., Coplen, Tyler B.,, J. K. Böhlke, Qi, H. P., Aerts-Bijma, Anita T.; id_orcid, Meijer, Harro A. J., Weise, S., Soergel, Karin,, Groning, M., Böhlke, J.K., Gröning, Manfred,, Stephan M. Weise, Gröning, Manfred, Haiping Qi, Anita T. Aerts‐Bijma, Jansen, Henk G.,, Heike Geilmann, Meijer, H. A. J., Gehre, Matthias, Jansen, Henk G., Meijer, Harro A. J.; id_orcid, Roland A. Werner, Werner, Roland A.,, Coplen, Tyler B., Böhlke, J.K.,, Werner, R., Werner, Roland A., Geilmann, H., Jansen, H. G., Aerts-Bijma, Anita T., Stuart-Williams, H., Karin Soergel, Henk G. Jansen, Stanley J. Mroczkowski, Aerts-Bijma, Anita T.,, Gehre, Matthias,, Gehre, M., Bohlke, J. K., Mroczkowski, Stanley J.,, Meijer, Harro A.J.,, Meijer, H., Mroczkowski, S., Mroczkowski, Stanley J., Brand, W., Tyler B. Coplen, Soergel, Karin, Hilary Stuart‐Williams, Weise, Stephan M.,, Willi A. Brand, Aerts-Bijma, A., Matthias Gehre, Brand, Willi A.,, Manfred Gröning, Soergel, K., Coplen, T., Qi, Haiping,, Stuart-Williams, Hilary, Harro A. J. Meijer   +69 more
core   +1 more source

Electrochemical Pathways for Nitrate Conversion to Ammonia: From Environmental Challenges to Ammonia Economy

Advanced Functional Materials, EarlyView.
This perspective presents recent advances in electrocatalytic nitrate reduction, focusing on reaction mechanisms, catalyst design, and electrolyzer configurations. Key challenges in selectivity, stability, and practical wastewater treatment are highlighted, while future directions for advancing sustainable ammonia synthesis and nitrate remediation are ...
Xintong Li, Yunpeng Zuo, Xiaoran Zhang, Jieqiong Shan, Kenneth Mei Yee Leung, Bin Liu, Peter Strasser, Adrian Fisher, Zonglong Zhu, Xin Wang   +9 more
wiley   +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

Heavy water inhibits DNA double-strand break repairs and disturbs cellular transcription, presumably via quantum-level mechanisms of kinetic isotope effects on hydrolytic enzyme reactions.

PLoS ONE
Heavy water, containing the heavy hydrogen isotope, is toxic to cells, although the underlying mechanism remains incompletely understood. In addition, certain enzymatic proton transfer reactions exhibit kinetic isotope effects attributed to hydrogen ...
Takeshi Yasuda, Nakako Nakajima, Tomoo Ogi, Tomoko Yanaka, Izumi Tanaka, Takaya Gotoh, Wataru Kagawa, Kaoru Sugasawa, Katsushi Tajima   +8 more
doaj   +1 more source

Characteristics of Stable Hydrogen and Oxygen Isotopes of Soil Moisture under Different Land Use in Dry Hot Valley of Yuanmou

Open Chemistry, 2019
Soil moisture, stable hydrogen, and oxygen isotopes were sampled and determined in a demonstration area of soil and moisture conservation at the Laocheng Town of Yuanmou County in Chuxiong Prefecture, Yunnan of three land use types: Leucaena Benth ...
Han Jiao-Jiao, Duan Xu, Zhao Yang-Yi, Li Meng   +3 more
doaj   +1 more source

Self‐Assembled Crystalline Peptoid Nanomaterials as Metal‐Free Enzyme Mimics for Enhanced Carbon Dioxide Hydration and Precipitation

Advanced Functional Materials, EarlyView.
Inspired by metal‐free carbonic anhydrases (CAs) that achieve efficient catalysis without metal cofactors, we herein report a sequence‐defined supramolecular peptoid platform that mimics metal‐free CAs and exhibits hydrolytic activity via a supramolecular assembly‐mediated proton‐transfer mechanism.
Progyateg Chakma, Ying Chen, Thi Kim Hoang Trinh, Anthony R. Perez, Jonathan Gil, Maria Casco Hidalgo, Botao Hao, Kyle Whitaker, Chun‐Long Chen   +8 more
wiley   +1 more source