Showing 901 - 920 results of 3,087 for search '"nitrogen"', query time: 0.04s Refine Results
  1. 901

    Uso do solo e Dinâmica dos Nutrientes nas Águas do Reservatório da Hidrelétrica de Manso no Estado de Mato Grosso, Brasil Central by Jeater Waldemar Maciel Correa Santos, Simoni Maria Loverde Oliveira, William Pietro de Souza

    Published 2013-07-01
    “…The decomposition of this organic biomass flooded has provided nutrients to the water, and has influenced in the time-spatial variation of concentrations of total nitrogen (NT) and total phosphorus (PT), especially during filling phase of the reservoir, where its contribution may have been more important than that resulting from the export of nitrogen and phosphorus for their sub-basins of contribution. …”
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  2. 902

    Inconsistent Growth Response to Fertilization and Thinning of Lodgepole Pine in the Rocky Mountain Foothills Is Linked to Site Index by Bradley D. Pinno, Victor J. Lieffers, Simon M. Landhäusser

    Published 2012-01-01
    “…Fifteen harvest-origin stands along the foothills of the Rocky Mountains of Alberta were subjected to six treatments including two levels of thinning (thinning to 2500 stems per hectare and a control) and three types of fertilization (nitrogen-only fertilization, complete fertilization including nitrogen with added P, K, S, Mg, and B, and no fertilization). …”
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  3. 903

    Enhanced Photoactivity of Fe + N Codoped Anatase-Rutile Nanowire Film under Visible Light Irradiation by Kewei Li, Haiying Wang, Chunxu Pan, Jianhong Wei, Rui Xiong, Jing Shi

    Published 2012-01-01
    “…The X-ray photoelectron spectroscopy measurements show that nitrogen and iron atoms are incorporated into the titania oxide lattice, and the UV-visible absorption spectra show that the codoping of iron and nitrogen atoms could extend the absorption to visible light region. …”
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  4. 904

    Effect of Ecotype and Latitude on Growth, Frost Hardiness, and Oxidative Stress of South to North Transplanted Scots Pine Seedlings by Erja Taulavuori, Kari Taulavuori, Ahti Niinimaa, Kari Laine

    Published 2010-01-01
    “…Shoot elongation, total nitrogen concentration, frost hardiness and oxidative stress state (lipid peroxidation, glutathione reductase activity, and protein oxidation) in the needles were analyzed. …”
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  5. 905

    Managing Ammonia Emissions from Dairy Cows by Amending Slurry with Alum or Zeolite or by Diet Modification by John J. Meisinger, Alan M. Lefcourt, Jo Ann S. Van Kessel, Victor Wilkerson

    Published 2001-01-01
    “…The alum conserved NH3 by acidifying the slurry to below pH 5, while the zeolite conserved ammonia by lowering the solution-phase nitrogen through cation exchange. The use of alum or zeolite also reduced soluble phosphorus in the slurry. …”
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  6. 906

    Numerical Study of the Air Ingress Accident of the HTR-PM and Possible Mitigation Measures by Wei Xu, Han Zhang, Heng Xie, Lei Shi, Jun Sun

    Published 2020-01-01
    “…The reason is that helium is much lighter than nitrogen, and the density difference between the coolant channel and the reactor core is small when helium is injected. …”
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  7. 907

    Application of the Machine Learning Methods to Assess the Impact of physico-chemical characteristics of water on Feed Consumption in Fish Farms by Hava Şimşek, Mükerrem Oral, Mesut Yılmaz, Mustafa Çakır, Nedim Özdemir, Okan Oral

    Published 2025-01-01
    “…Eleven physico-chemical characteristics (temperature, pH, dissolved oxygen, electrical conductivity, salinity, Nitrite nitrogen, nitrate nitrogen, ammonium nitrogen, total phosphorus, total suspended solids, and biological oxygen demand) of water were evaluated in terms of fish feed consumption by using ML methods. …”
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  8. 908

    20-Year Climatology of NO3  − and NH4  + Wet Deposition at Ny-Ålesund, Svalbard by Rafael Kühnel, Tjarda J. Roberts, Mats P. Björkman, Elisabeth Isaksson, Wenche Aas, Kim Holmén, Johan Ström

    Published 2011-01-01
    “…A 20-year dataset of weekly precipitation observations in Ny-Ålesund, Svalbard, was analysed to assess atmospheric wet deposition of nitrogen. Mean annual total nitrogen deposition was 74 mg N/(m2 yr) but exhibited large interannual variability and was dominated by highly episodic “strong” events, probably caused by rapid transport from European sources. …”
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  9. 909

    Poultry feather waste management and effects on plant growth by J. C. Joardar, M. M. Rahman

    Published 2018-03-01
    “…Results TPFW contained higher amount of organic matter (35.9%) and total nitrogen (4%). Other major nutrient elements were found to be satisfactory. …”
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  10. 910

    Content and Dynamics of Nutrients in the Surface Water of Shallow Lake Mulehe in Kisoro District, South–western Uganda. by Saturday, Alex, Kangume, Susan, Bamwerinde, Wilson

    Published 2023
    “…We collected 54 water samples from nine sampling stations between the wet season (March–May 2020 and dry season (June–August 2020). Nutrients; ammonia–nitrogen (NH4–N), nitrate–nitrogen (NO3–N), nitrite–nitrogen (NO2–N), totalnitrogen (TN), total phosphorus (TP) and soluble reactive phosphorus (SRP) were investigated in accordance with APHA 2017 standard procedures. …”
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  11. 911

    Practices to Minimize Flooding Damage to Commercial Vegetable Production by Guodong Liu, Yuncong Li, Xiangju Fu

    Published 2016-02-01
    “…This shortage in energy prevents the absorption of nutrients like nitrogen, phosphorous, and potassium. This revised 4-page fact sheet discusses several different management practices for overcoming flood damage, including the use of nitrogen and potassium fertilizers, oxygen fertilizers, growth regulators, and fungicides. …”
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  12. 912

    Fertigation via Center Pivot Irrigation for Commercial Potato Production in Florida by Guodong Liu, Xiangju Fu, Lincoln Zotarelli, Steven Sargent, Kati Migliaccio, Yuncong Li

    Published 2020-03-01
    “…In Florida, potatoes are mainly planted on sandy soils with low nutrient- and water-holding capacities. Nitrogen is the most limiting nutrient in these soils. …”
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  13. 913

    3D Numerical Simulation for Eutrophication in a Reservoir in Southern China Based on EFDC Model by SUN Taotao, ZHAO Xin, ZHU Tingting, PENG Shenghua

    Published 2020-01-01
    “…The results show that:the simulation results of the water temperatureand total phosphorus are good, and the simulated values are highly consistent with the measuredvalues, with the annual average error of 0.5% and -1.4% respectively;that of COD takes secondplace, with the annual average error of -4.4%; there are some deviations between the simulatedand measured values of total nitrogen and chlorophyll, but the variation trend can be simulated well;there are large errors in the simulation for ammonia nitrogen and dissolved oxygen. …”
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  14. 914

    Determination of the Specific Surface Areas of Non-Porous and Macroporous Carbons by J. Choma, M. Jaroniec

    Published 2001-11-01
    “…Additional testing was undertaken for argon, nitrogen and krypton adsorption isotherms at 87 K on a highly graphitized carbon. …”
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  15. 915

    THE PROBLEM OF ENVIRONMENTAL POLLUTION IN THE MEDITERRANEAN SEA ALONG THE COAST OF TURKEY by ERNUR AKINER MUHAMMED

    Published 2020-06-01
    “…Concentration values for BOD5, Total Phosphorus, Nitrite Nitrogen, and Nitrate Nitrogen parameters were determined. …”
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  16. 916

    Formation of diluted nitride InAs1–хNх core-shell nanowires on silicon by Kaveev Andrey, Fedorov Vladimir, Miniv Dmitriy

    Published 2024-12-01
    “…The growth of the nanowires with a wurtzite-type crystal structure was demonstrated by a self-induced mechanism using the molecular beam epitaxy with plasma-assisted nitrogen activation. Using the transmission electron microscopy and X-ray diffraction analysis, a volume decrease in the wurtzite crystal unit cell with increasing nitrogen content was revealed.…”
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  17. 917

    Influence of Thermodynamic Effect on Blade Load in a Cavitating Inducer by Kengo Kikuta, Noriyuki Shimiya, Tomoyuki Hashimoto, Mitsuru Shimagaki, Hideaki Nanri, Yoshiki Yoshida

    Published 2010-01-01
    “…By contrast, the pressure distribution in liquid nitrogen has the same tendency as that in water if the cavity length at the blade tip is taken as a cavitation indication. …”
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  18. 918
  19. 919

    Preparation of high quality ferrovanadium nitride by carbothermal reduction nitridation process by Wu Y.D., Zhang G.H., Chou K.C.

    Published 2017-01-01
    “…It was demonstrated that C/O molar ratio had a great influence on the residue carbon, as well as the nitrogen content in the final products. It was found that the nitrogen content of the final product achieved 11.52% when the C/O molar ratio was 90% of the stoichiometric value. …”
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  20. 920

    Removal of Nutrients from Fertilizer Plant Wastewater Using Scenedesmus sp.: Formation of Bioflocculation and Enhancement of Removal Efficiency by Thanh-Luu Pham, Manh Ha Bui

    Published 2020-01-01
    “…High concentrations of nutrients, especially nitrogen- and phosphorus-rich species, have contributed to the process of eutrophication, highlighting a demand for effective and economical methods of removing nitrogen and phosphorus from wastewater. …”
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