Showing 2,421 - 2,440 results of 3,087 for search '"nitrogen"', query time: 0.07s Refine Results
  1. 2421

    Adsorption of Ammonium Ions onto a Natural Zeolite: Transcarpathian Clinoptilolite by Mariya Lebedynets, Myroslav Sprynskyy, Iryna Sakhnyuk, Radoslaw Zbytniewski, Roman Golembiewski, Boguslaw Buszewski

    Published 2004-11-01
    “…Values of the specific surface area and of the pore volume occupied by sorbed substances were calculated using the relative moisture content established and the maximum sorption capacity exhibited towards ammonium ions as well as a nitrogen adsorption/desorption method. Ammonium ion sorption by the zeolite appeared to be complete within 24 h for all fraction sizes, initial NH 4 + ion concentration and adsorbate volumes. …”
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  2. 2422

    A Machine-Learning-Based Classification Method for Meteorological Conditions of Ozone Pollution by Yang Cao, Xiaoli Zhao, Debin Su, Xiang Cheng, Hong Ren

    Published 2022-12-01
    “…The input physical parameters for the BP neural network were determined by evaluating the relationship between surface O3 concentrations and meteorological parameters and precursors, including relative humidity, temperature, mixing layer height, precipitation, and nitrogen dioxide (NO2) concentrations. The study area focused on 21 cities in Sichuan Province in southwestern China, which was divided into 12 BP classifiers according to the urban geographical location and sample number of each city, and a single BP classifier was trained for 21 cities. …”
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  3. 2423

    Soil chemical properties and growth response of Moringa oleifera to different sources and rates of organic and NPK fertilizers by A. G. Adebayo, H. A. Akintoye, A. O. Shokalu, M. T. Olatunji

    Published 2017-09-01
    “…Post-planting soil analysis indicated that nitrogen, phosphorus, calcium, sodium, manganese, iron and zinc contents were higher in plots with organic and inorganic fertilizers except for potassium and magnesium. …”
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  4. 2424

    Nutritional value and prediction of digestible and metabolizable energy of full-fat deactivated soybeans for pigs by Teresinha Marisa Bertol, Jorge Vitor Ludke, Arlei Coldebella, Herbert Rech

    Published 2025-01-01
    “…Objective The objective of this work was to determine the energetic values of 14 full-fat deactivated soybeans samples, the effect of partial removal of the hull, and to develop equations for predicting digestible (DE), metabolizable (ME), and ME corrected for nitrogen balance (MEn) for pigs. Methods Ten metabolism experiments were conducted over a two-year period to evaluate 14 batches of full-fat deactivated soybeans, following the method of the total collection of feces and urine. …”
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  5. 2425

    Effect of LiO Doping on the Surface and Catalytic Properties of NiO Solid by Hala G. El-Shobaky, Gehan A. Fagal, Amina A. Attia, Neven A. Hassan

    Published 1999-04-01
    “…The influence of Li 2 O treatment (0.19–0.75 mol%) on the surface and catalytic properties of NiO were investigated using nitrogen adsorption at −196°C and the catalytic decomposition of H 2 O 2 at 30–50°C. …”
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  6. 2426

    Thermogravimetric analysis of rice husk and low-density polyethylene co-pyrolysis: kinetic and thermodynamic parameters by Divya Bisen, Ashish Pratap Singh Chouhan, Anil Kumar Sarma, Sakthivel Rajamohan, P. V. Elumalai, Dhinesh Balasubramanian, Aschalew Cherie

    Published 2024-12-01
    “…These tests were carried out in the presence of a nitrogen environment at a flow rate of 20 ml/min with a different heating rate of 10 to 40 °C/min from 30 to 600 °C.In this paper, activation energy (Ea) was measured using the integral method (coats and Redfern) and two distinct iso-conversional approaches are Flynn wall Ozawa (FWO) and Kissinger Akahira Sunose (KAS). …”
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  7. 2427

    FT-IR Analysis of Beta vulgaris Peels and Pomace Dye Extracts and Surface Analysis of Optimally Dyed-Mordanted Cellulosic Fabrics by Vincent Rotich, Phanice Wangila, Jackson Cherutoi

    Published 2022-01-01
    “…The C=N bond stretch biomarks the presence of nitrogen-containing compounds such as the reddish betanin pigments. p>0.05 of the dyeing parameters implied that they are not significant but affect dyeing probably alongside other factors such as mordanting. …”
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  8. 2428

    Study of the Effect of TiO2 Layer on the Adsorption and Photocatalytic Activity of TiO2-MoS2 Heterostructures under Visible-Infrared Light by N. Cruz-González, O. Calzadilla, J. Roque, F. Chalé-Lara, J. K. Olarte, M. Meléndez-Lira, M. Zapta-Torres

    Published 2020-01-01
    “…The properties of the samples were analyzed by scanning electron microscopy (SEM), transmission electron microscopy (TEM), atomic force microscopy (AFM), X-ray diffraction (XRD), nitrogen adsorption-desorption isotherms, UV-Vis diffuse reflectance spectroscopy (UV-Vis-DRS), and X-ray photoelectron spectroscopy (XPS). …”
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  9. 2429

    Changes in Quality and Flavor of Chopped Chili Peppers in Ceramic Jars during Fermentation by WANG Hongwei, LIU Hongjuan, QIN Yeyou, XU na, HU Jialiang, YUAN Xiao, LIU Yang, JIANG Liwen

    Published 2025-02-01
    “…The results showed that the levels of soluble salt-free solids, total acids, total esters, amino nitrogen and total colony count of chopped chili peppers kept changing with storage time, and the quality and aroma kept improving in the first three years, and then the quality declined in the fourth year. …”
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  10. 2430

    How to Achieve a 50% Reduction in Nutrient Losses From Agricultural Catchments Under Different Climate Trajectories? by Maarten Wynants, Johan Strömqvist, Lukas Hallberg, John Livsey, Göran Lindström, Magdalena Bieroza

    Published 2024-07-01
    “…The model predicted a slight increase in inorganic nitrogen (IN) and total phosphorus (TP) loads under RCP2.6, likely due to precipitation‐driven mobilization. …”
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  11. 2431

    Lime and gypsum reduce N-fertilizer requirements and improve soil physics, fertility and crop yields in a double-cropped system by Maria Gabriela de Oliveira Andrade, Carlos Felipe dos Santos Cordeiro, Amanda Ferraresi Roberto, Juliano Carlos Calonego, Ciro Antonio Rosolem

    Published 2025-01-01
    “…The synergistic effects of soil acidity alleviation and nitrogen (N) fertilization on soil physical attributes and their impacts on crop yields in highly weathered soils have not been assessed. …”
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  12. 2432

    Sintesis dan Karakterisasi Komposit Mn-N-TiO2/Bentonit untuk Degradasi Polutan Organik by Ruslan, Prismawiryanti, Ni Ketut Sumarni, Ahmad Ridhay, Mutiara Zalfa Riski, Sitti Nurhalisa, Anggi Marsela

    Published 2024-12-01
    “…This spectrum indicated the presence of manganese and nitrogen. These results were confirmed by the EDX instrument, which showed the presence of 0.60% Mn and 0.04% N. …”
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  13. 2433

    Preparation of phosphogypsum ecological concrete and study on its phytogenic properties by Rongxin Liu, Chunduo Liu, Jiang Du, Cheng Wang, Yonghui Yuan, Xin Zhang

    Published 2025-01-01
    “…The results showed that the eco-concrete based on phosphogypsum as raw material was rich in nutrients such as nitrogen, phosphorus and potassium, which could meet the requirements of plant growth, Supporting plant growth with a 30% increase in root length and 25% improvement in biomass compared to control concrete. …”
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  14. 2434

    Land use impacts on surface water quality by statistical approaches by K. Afed Ullah, J. Jiang, P. Wang

    Published 2018-04-01
    “…Unplanned urbanization, intense agricultural activities and deforestation are positively associated with carbon, nitrogen and phosphorous related water quality parameters. …”
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  15. 2435

    Ineffectiveness of phosphorus binding treatments in a semi-enclosed area of a large, shallow, and hypereutrophic lake by Joseph L. Davidson, Stephen J. Jacquemin, Silvia E. Newell, John C. Hughes, Lindsay D. Starr, Mark J. McCarthy

    Published 2025-01-01
    “…These results suggest that in-lake chemical treatments to mitigate cHABs are unlikely to provide long-lasting benefits in these semi-enclosed areas of large, shallow, hypereutrophic systems, and resources may be better applied toward reducing external nutrient loads (P and nitrogen) from the watershed.…”
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  16. 2436

    Exploring the impact of fulvic acid and humic acid on heavy metal availability to alfalfa in molybdenum contaminated soil by Mengmeng Wang, Gangfu Song, Zhihong Zheng, Xiao Mi, Zhixin Song

    Published 2024-12-01
    “…Additionally, the structure of the soil bacterial community was primarily influenced by changes in soil properties such as cation exchange capacity, available phosphorus, and ammonium nitrogen levels. This finding highlight the potential of FA and HA to enhance Mo availability, uptake, and translocation in alfalfa, suggesting that their application could be an effective strategy for phytoremediation of Mo-contaminated soils, particularly when alfalfa is used as a hyperaccumulator.…”
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  17. 2437

    The Role of Gum Arabic for a Protective Kidney Dysfunction Induced Gentamicin on Diabetes Rats by Garsa Ali Alshehry

    Published 2022-01-01
    “…The kidney functions indicated to creatinine, urea, uric acid, blood urea nitrogen, and bilirubin were decreased from 1.34, 0.95, 2.24, 45.61, and 0.66 mg/dl in group (1) to 0.78, 29.84, 2.12, 16.25, and 018 mg/dL in group (4), respectively, when taking Gum Arabic. …”
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  18. 2438

    A Review of Ammonia Combustion and Emissions Characteristics in Spark-Ignition Engines and Future Road Map by Vikas Sharma, Angad Panesar, Guillaume de Sercey, Steven Begg

    Published 2024-12-01
    “…This review article focuses on the compatibility of NH<sub>3</sub> as a fuel for spark-ignition (SI) engines, examining its combustion under various modes including pure NH<sub>3</sub> combustion, gasoline blends, NH<sub>3</sub>/hydrogen (H<sub>2</sub>) blends, and NH<sub>3</sub>/natural gas blends in single or dual-fuel configurations. The formation of nitrogen oxides (NO<sub>x</sub>) and slip-NH<sub>3</sub> is explored to understand emissions species such as NO and N<sub>2</sub>O. …”
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  19. 2439

    Toxicity of formaldehyde, and its role in the formation of harmful and aromatic compounds during food processing by Xiaoyan Sun, Chunmin Yang, Weiyue Zhang, Jie Zheng, Juanying Ou, Shiyi Ou

    Published 2025-01-01
    “…This study aims to investigate the fate of formaldehyde in food processing from two key perspectives: (1) its role in the formation of other harmful compounds, such as heterocyclic aromatic amines, methylimidazole, advanced glycation end-products, and N-nitrosamines, and (2) its potential to contribute to the generation of aromatic compounds, including oxygen-, sulfur-, and nitrogen-containing heterocyclic aromas. This review provides insights that may help food scientists develop strategies to mitigate formaldehyde's harmful effects while potentially harnessing its role in producing beneficial aromatic compounds.…”
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  20. 2440

    Influence of compost and canal clay scouring on sandy soil properties and wheat productivity under Irrigation water regime by Sayed Abdeen, Mahmoud EL-Sayed

    Published 2021-12-01
    “…The highest rates of the studied materials as a mixture gave a significant increase in nitrogen, phosphorus and potassium contents of grains and straw of wheat crop. …”
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