Results 1 to 10 of about 736,210 (312)
Crystals, 2022 The origin of the contrast appearing in STM images at the boundary between diverse ordered structures is studied using the example of two structures, (7 × 7)N and (8 × 8), formed in the system of a two-dimensional silicon nitride layer on the Si(111 ...
Vladimir Mansurov +5 more
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Investigation of Factors Influencing on Ammonia Emission from Soils in Agricultural Land [PDF]
대한환경공학회지, 2022 Objectives Major factors affecting ammonia emission from the soil and strategies to reduce ammonia emission were investigated through literature surveys. Methods An academic search was conducted using keywords such as agriculture, ammonia, and fine dust,
Gun-Yeob Kim +9 more
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Environmental Research Letters, 2022 By synthetically producing nitrogen fertilizers from ammonia (NH _3 ), the Haber–Bosch process has been feeding humanity for more than one hundred years. However, current NH _3 production relies on fossil fuels, and is energy and carbon intensive.
Lorenzo Rosa, Paolo Gabrielli
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Effects of humic substances with urea on protozoal population and fermentation in the rumen of sheep [PDF]
Bulgarian Journal of Veterinary Medicine, 2020 The aim was to investigate the effects of humic substances (HS) combined with urea, on pH, ammonia, total volatile fatty acids (∑VFA), protozoal population, amylolytic and cellulolytic activities in rumen fluid (RF) of 12 female crossbred merino sheep (n
A. Marcin +3 more
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Environmental Research Letters, 2021 Emissions of reactive nitrogen as ammonia (NH _3 ) and nitrogen oxides (NO _x ), together with sulfur dioxide (SO _2 ), contribute to formation of secondary PM _2.5 in the atmosphere. Satellite observations of atmospheric NH _3 , NO _2 , and SO _2 levels
Youfan Chen +10 more
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Yankuang ceshi, 2021 BACKGROUND Inductively coupled plasma-mass spectrometry (ICP-MS) is used for the determination of trace silver in geological samples. Hydroxides and oxides of Zr, Nb, Mo cause serious overlapping interference on the two mass numbers of 107Ag and 109Ag ...
LIU Hai-ming, WU Ming-li, CHENG Jing-te
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Vietnam Journal of Science, Technology and Engineering, 2022 In this study, a continuous ammonium stripping lab-scale model of anaerobic co-digestion effluent from an organic fraction of food waste and domestic wastewater was used to investigate ammonium removal efficiency by air stripping.
Lan Huong Nguyen +2 more
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Influence of Structural Parameters of Tesla Valve Flow Field on Performance of Fuel Cells
EnergiesThe optimization of flow channel structures significantly impacts the performance enhancement of proton exchange membrane fuel cells (PEMFCs). In this paper, the influences of the loop radius, inclination angle, and presence of the island in the Tesla ...
Hui Guo +6 more
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Toward Reliable FOWT Modeling: A New Calibration Approach for Extreme Environmental Loads
EnergiesThe current paper presents a comparative analysis between a high-fidelity simulation tool and computational fluid dynamics (CFD) in evaluating the behavior of a fully coupled floating offshore wind turbine (FOWT) system subjected to three distinct design
Ho-Seong Yang +2 more
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Energy and AIAt present, most fuel cell engines are single-stack systems, and high-power single-stack systems have bottlenecks in meeting the power requirements of heavy-duty trucks, mainly because the increase in the single active area and the excessive number of ...
Ji Pu +6 more
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