Results 31 to 40 of about 730,131 (311)

Detection of Widespread Hot Ammonia in the Galactic Center

, 2013
We present the detection of metastable inversion lines of ammonia from energy levels high above the ground state. We detect these lines in both emission and absorption toward fifteen of seventeen positions in the central 300 parsecs of the Galaxy.
Mills, Elisabeth A. C., Morris, Mark R.
core   +1 more source

β‐Catenin/c‐Myc Axis Modulates Autophagy Response to Different Ammonia Concentrations

Advanced Biology, Volume 9, Issue 3, March 2025.
Ammonia, detoxified by the liver into urea and glutamine, impacts autophagy differently at varying levels. Low ammonia activates autophagy via c‐Myc and β‐catenin, while high levels suppress it. Using Huh7 cells and Spf‐ash mice, c‐Myc's role in cytoprotective autophagy is revealed, offering insights into hyperammonemia and potential therapeutic ...
S. Sergio, B. Spedicato, G. Corallo, A. Inguscio, M. Greco, D. Musarò, D. Vergara, A. F. Muro, G. De Sabbata, L. R. Soria, N. Brunetti Pierri, M. Maffia   +11 more
wiley   +1 more source

Phytic Acid‐Modified Ni3Fe1N With Enhanced Chloride Corrosion Resistance for Efficient and Stable Seawater Oxidation

Small Structures
Developing oxygen evolution reaction (OER) electrodes with high catalytic activity and chloride corrosion resistance is crucial for advancing industrial seawater electrolysis for hydrogen production, yet it remains a significant challenge.
Chuang Tian, Yanping Mo, Jinqi Wu, Yingyi Bo, Chengfei Li, Haibo Tang, Fuzhi Huang, Jia-Wei Zhao, Kaihang Yue   +8 more
doaj   +1 more source

Emission characteristics and operational stability of an industrial-scale pure-ammonia ceramic kiln under long-term operation

Applications in Energy and Combustion Science
This study presents a long-term (3-month) industrial demonstration of pure ammonia (NH3) as the sole fuel in a 150-meter long and 1.6-meter-wide ceramic roller kiln for continuous tile production.
Xuren Zhu, Congwen Gong, Jianguo Du, Zhou Yu, Liuhao Ma, Jiwei Zhou, Shiping Jin, Zhihao Yang, Libiao Xiao, Qikang Zhang, Yijun Liu, Xiru Cheng, Shouyan Zhu, Guoqing Xie, Shaohua Huang, Zhenming Meng, Shanjun Ke, Yu Wang, Yi-Bing Cheng   +18 more
doaj   +1 more source

Gasotransmitter ammonia accelerates seed germination, seedling growth, and thermotolerance acquirement in maize

Plant Signaling & Behavior, 2023
Ammonia (NH3), as an intermediate product of nitrogen metabolism, is recognized as a novel gasotransmitter (namely gaseous signaling molecule), its signaling role being revealed in plants. NH3 exists in two different chemical forms, namely the weak base (
Zhong-Guang Li, Xiao-Qiong Lu, Ji Chen
doaj   +1 more source

Ammonia/Hydrogen and Cracked Ammonia Combustion

Energy & Fuels
Ammonia is a promising energy carrier for energy system decarbonization, although several drawbacks affect its combustion process. Coupling moderate or intense low-oxygen dilution (MILD) combustion with the use of high reactivity fuels allows to improve NH3 combustion.
Giovani Battista Ariemma, Giancarlo Sorrentino, Mara de Joannon, Raffaele Ragucci, Pino Sabia   +4 more
openaire   +2 more sources

AMMONIA AS AN ENEMA. [PDF]

The Lancet, 1916
n ...
openaire   +1 more source

Selective low concentration ammonia sensing in a microfluidic lab-on-a-chip [PDF]

, 2006
In the medical community, there is a considerable interest in a diagnostic breath analyzer for ammonia that is selectively enough to measure in exhaled air and small enough for the small volumes available in such an application.
Berg, Albert van den, Delft, Koen M. van, Koelmans, W.W., Olthuis, Wouter, Timmer, Björn H.   +4 more
core   +3 more sources

In Situ Constructed Magnetic Core‐Shell Hydrogen‐Bonded Organic Framework‐on‐Metal–Organic Framework Structure: an Efficient Catalyst for Peroxymonosulfate Activation

Advanced Functional Materials, EarlyView.
In this work, a magnetic core‐shell catalyst (HOF‐on‐Fe3O4/ZIF‐67) is successfully synthesized, consisting of a metal–organic framework (ZIF‐67) with magnetic Fe3O4 as the core and a porous hydrogen‐bonded organic framework (HOF) as the shell. The catalyst efficiently activated peroxymonosulfate, resulting in rapid and effective removal of water ...
Yingying Du, Chenhui Ding, Chao Deng, Susanta Banerjee, Seema Agarwal   +4 more
wiley   +1 more source

Review of Concentrated Solar Power Technology Applications in Photocatalytic Water Purification and Energy Conversion: Overview, Challenges and Future Directions

Energies
Photocatalysis, a promising semiconductor-based technology activated by free and eternal solar energy, has great potential for addressing environmental remediation and energy conversion challenges.
Cheng Zhang, Na Li, Guangqi An
doaj   +1 more source