Results 61 to 70 of about 77,524 (304)

Archaeal dominated ammonia-oxidizing communities in Icelandic grassland soils are moderately affected by long-term N fertilization and geothermal heating

open access: yesFrontiers in Microbiology, 2012
The contribution of ammonia-oxidizing bacteria and archaea (AOB and AOA, respectively) to the net oxidation of ammonia varies greatly between terrestrial environments.
Anne eDaebeler   +8 more
doaj   +1 more source

Advancing Tandem Organic Solar Cells With Ternary Acceptor Control for High‐Power Modules and Solar‐to‐Ammonia Conversion

open access: yesAdvanced Functional Materials, EarlyView.
Tandem organic solar cells with optimized ternary acceptor engineering achieved a power conversion efficiency of 15.53% and enabled a high‐voltage mini‐module (Voc 6.11 V). Integration into a bias‐free PV‐EC system further demonstrated efficient solar‐to‐ammonia (STA) conversion (97% Faradaic Efficiency, 4± 2% STA efficiency), highlighting scalable ...
Seyeong Song   +11 more
wiley   +1 more source

[Billingham Ammonia Oxidation Plants]

open access: yes, 2022
This record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete.
Weickhardt, Leonard W.
core  

Hydrazine Formation via NiIII-NH2 Radical Coupling in Ni-Mediated Ammonia Oxidation

open access: yes, 2020
Given the diverse mechanistic possibilities for the overall 6e-/6H+ transformation of ammonia to dinitrogen, identification of M(NHx) intermediates involved in N–N bond formation is a central mechanistic challenge.
Jonas, Peters, Paul H., Oyala, Nina, Gu
core   +1 more source

Isolation, identification and characteristics of ammonia-oxidation bacteria from Anammox reactor

open access: yes浙江大学学报. 农业与生命科学版, 2001
6 strains of ammonia-oxidation bacteria were isolated from an Anammox reactor, and the biological characteristics of strain N1 were studied. The results showed that strain N1 had the ability to oxidize ammonium anaerobically.
HU Bao-lan, ZHENG Ping, GUAN Li-li
doaj   +1 more source

Thermally Pre‐Formed Reconfigurable Resistive Random‐Access Memory Crossbar Arrays: A Dual‐Mode Platform for Robust Physically Unclonable Functions and In‐Memory Computing

open access: yesAdvanced Functional Materials, EarlyView.
A reconfigurable RRAM platform utilizing thermally pre‐formed filaments (TPFs) is developed to realize robust hardware security. By exploiting the thermodynamic stochasticity of TPFs, exceptionally reliable physically unclonable functions (PUFs) are achieved.
Seongbin Kwon   +4 more
wiley   +1 more source

Influencing Factors of Ammonia Nitrogen Removal by Electro-oxidation in Seepage Drainage of Uranium Tailings Pond

open access: yesYuanzineng kexue jishu
Ammonia nitrogen wastewater is one of the most difficult water treatment problems in the world. In the process of uranium mining, beneficiation and smelting, radioactive solid waste will be produced which cann’t be effectively treated, and will be stored
WU Mingtao1, 2, ,  ZHOU Lei1,  XU Lechang1, ,  JIANG Guoping1, 3,
doaj   +1 more source

Ammonia oxidation and ammonia-oxidizing bacteria and archaea from estuaries with differing histories of hypoxia [PDF]

open access: yesThe ISME Journal, 2007
Abstract Nitrification, the oxidation of NH4  + to NO2  − and subsequently to NO3  −, plays a central role in the nitrogen cycle and is often a critical first step in nitrogen removal from estuarine and coastal environments. The first and rate-limiting step in nitrification is catalyzed by the enzyme ammonia monooxygenase (AmoA).
Jane M, Caffrey   +3 more
openaire   +2 more sources

Bioinspired Adaptive Sensors: A Review on Current Developments in Theory and Application

open access: yesAdvanced Materials, EarlyView.
This review comprehensively summarizes the recent progress in the design and fabrication of sensory‐adaptation‐inspired devices and highlights their valuable applications in electronic skin, wearable electronics, and machine vision. The existing challenges and future directions are addressed in aspects such as device performance optimization ...
Guodong Gong   +12 more
wiley   +1 more source

Mixed‐Metal Promotion in a Manganese‐Molybdenum Oxynitride as Catalyst to Integrate C─C and C─N Coupling Reactions for the Direct Synthesis of Acetonitrile from Syngas and Ammonia

open access: yesAdvanced Materials, EarlyView.
Transition metal oxy/carbo‐nitrides show great promise as catalysts for sustainable processes. A Mn‐Mo mixed‐metal oxynitride attains remarkable performance for the direct synthesis of acetonitrile, an important commodity chemical, via sequential C─N and C─C coupling from syngas (C1) and ammonia (N1) feedstocks.
M. Elena Martínez‐Monje   +7 more
wiley   +1 more source

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