Results 21 to 30 of about 817,315 (310)
Carbon dioxide electrochemical reduction by copper nanoparticles/ionic liquid-based catalytic inks
Frontiers in Environmental ChemistryThe development of copper nanoparticle (CuNP)-based catalysts for the electrochemical reduction of carbon dioxide (ECO2-R) offers a promising approach to enhance its transformation into other industrially significant compounds.
Valeria Gazzano +13 more
doaj +1 more source
Nitrogen-diluted ammonia SNCR for enhanced NOx removal in a ceramic roller kiln
Applications in Energy and Combustion ScienceThis study investigates the application of nitrogen-diluted ammonia injection in Selective Non-Catalytic Reduction (SNCR) systems to enhance NOx removal efficiency in a high-temperature, oxygen-abundant ceramic roller kiln environment.
Zhihao Yang +7 more
doaj +1 more source
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
An in situ XAS study of the cobalt rhenium catalyst for ammonia synthesis [PDF]
, 2018 A cobalt rhenium catalyst active for ammonia synthesis at 400 °C and ambient pressure was studied using in situ XAS to elucidate the reducibility and local environment of the two metals during reaction conditions.
Granlund Kirste, Karsten +6 more
core +3 more sources
SIRT4 positively regulates autophagy via ULK1, but independently of HDAC6 and OPA1
FEBS Open Bio, EarlyView.Cells expressing SIRT4 (H161Y), a catalytically inactive mutant of the sirtuin SIRT4, fail to upregulate LC3B‐II and exhibit a reduced autophagic flux under stress conditions. Interestingly, SIRT4(H161Y) promotes phosphorylation of ULK1 at S638 and S758 that are associated with inhibition of autophagy initiation.
Isabell Lehmkuhl +13 more
wiley +1 more source
EnergiesPhotocatalysis, 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
Palladium Catalysts for Dehydrogenation of Ammonia Borane with Preferential B−H Activation [PDF]
, 2010 Cationic Pd(II) complexes catalyzed the dehydrogenation of ammonia borane in the most efficient manner with the release of 2.0 equiv of H_2 in less than 60 s at 25 °C.
Han, Won-Sik +9 more
core +2 more sources
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 +11 more
wiley +1 more source
A Simple Graphene NH₃ Gas Sensor via Laser Direct Writing. [PDF]
, 2018 Ammonia gas sensors are very essential in many industries and everyday life. However, their complicated fabrication process, severe environmental fabrication requirements and desorption of residual ammonia molecules result in high cost and hinder their ...
Deng, Lei +12 more
core
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