Showing 481 - 500 results of 810 for search '"nitrate"', query time: 0.04s Refine Results
  1. 481

    Modeling of Nitrogen Dynamics in an Austrian Alpine Forest Ecosystem on Calcareous Soils: A Scenario-Based Risk Assessment under Changing Environmental Conditions by Friedl Herman, Stefan Smidt, Klaus Butterbach-Bahl, Michael Englisch, Ernst Gebetsroither, Robert Jandl, Klaus Katzensteiner, Manfred Lexer, Friederike Strebl, Sophie Zechmeister-Boltenstern

    Published 2007-01-01
    “…We modeled the behavior of an Austrian alpine forest ecosystem on calcareous soils under changing climate and atmospheric nitrogen deposition scenarios. The change of nitrate leaching, emission rates of nitrogen compounds, and forest productivity were calculated using four process-oriented models for the periods 1998–2002 and 2048–2052. …”
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  2. 482

    Application of Multivariate Statistical Analysis in Evaluation of Surface River Water Quality of a Tropical River by Teck-Yee Ling, Chen-Lin Soo, Jing-Jing Liew, Lee Nyanti, Siong-Fong Sim, Jongkar Grinang

    Published 2017-01-01
    “…The first PC indicated that the total suspended solids, turbidity, and hydrogen sulphide were the dominant polluting factors which is attributed to the logging activities, followed by the five-day biochemical oxygen demand, total phosphorus, organic nitrogen, and nitrate-nitrogen in the second PC which are related to the discharges from domestic wastewater. …”
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  3. 483

    Physical-chemical analysis of mixing water from an underground source after treatment with a ceramic filter by Automar Guédes de Lacerda Filho, Beatriz Wanderley Gomes, Maria Adriana de Freitas Mágero Ribeiro, Diego de Paiva Bezerra

    Published 2025-01-01
    “…Furthermore, the chemical analysis of the water revealed a decrease in five out of the six parameters analyzed, specifically total alkalinity, chloride, phosphate, nitrate, sulfate, and zinc content. In conclusion, it can be inferred that there is potential to reduce certain elements in untreated water that adversely affect concrete strength and quality, in addition to improving the pH levels. …”
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  4. 484

    Magnetic properties of different phases iron oxide nanoparticles prepared by micro emulsion-hydrothermal method by Shakeel Ahmad, Henmei Ni, Fahad S Al-Mubaddel, Moustafa A. Rizk, Mohamed Ben Ammar, Afaq Ullah Khan, Zainab M. Almarhoon, Abdulaziz A. Alanazi, Magdi E. A. Zaki

    Published 2025-01-01
    “…In addition, the 2-octanol, and the surfactant cetyltrimethylammonium bromide served as a solvent in the synthesis process. Using iron nitrate hexahydrate as the salt precursor allowed for the formation of FeONPs with varied sizes, shapes and phases. …”
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  5. 485

    Rapid Colorimetric Detection of Hg (II) Based on Hg (II)-Induced Suppressed Enzyme-Like Reduction of 4-Nitrophenol by Au@ZnO/Fe3O4 in a Cosmetic Skin Product by Oratile Semong, Bareki Shima Batlokwa

    Published 2023-01-01
    “…Thereafter, the ZnO/Fe3O4 composite was prepared by dispersing the synthesized magnetic nanoparticles into an alkaline zinc nitrate solution. After calcination of the precipitate, the formed ZnO/Fe3O4 composites were coated with gold nanostructures by dispersing the composites in auric acid/ethylene glycol solution in a water bath. …”
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  6. 486

    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
    “…The algal species was able to remove ammonium (NH4+), nitrate (NO3−), phosphate (PO43−), total phosphorus (TP), COD, and BOD5 with removal rates up to 93%, 84%, 97%, 96%, 93%, and 84%, respectively. …”
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  7. 487

    A New Photocatalytic System Using Steel Mesh and Cold Cathode Fluorescent Light for the Decolorization of Azo Dye Orange G by Ming-Chin Chang, Chin-Pao Huang, Hung-Yee Shu, Yung-Chen Chang

    Published 2012-01-01
    “…Results of FTIR and IC indicated the breakage of N=N bonds, with sulfate as the major and nitrite and nitrate as the minor products, which implied degradation of dye molecules.…”
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  8. 488

    Uptake and leaching of sorbed ammonium during early growth of wheat by Bente Foereid, Emilio Alvarenga, Julia Szocs, Marianna Makadi

    Published 2020-06-01
    “…<br /> <strong>Results </strong>Early uptake of sorbed ammonium was reduced by 56% compared to ammonium applied conventionally, and soil uptake compensated only very early. Nitrate concentration in leachates was reduced by 12% in sandy soil when N was applied sorbed to zeolite. …”
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  9. 489

    Seasonal Dynamics in Bacteriological and Physicochemical Water Quality of the Southern Gulf of Lake Tana by Baye Sitotaw, Belayneh Daniel, Mulugeta Kibret, Workiye Worie

    Published 2022-01-01
    “…Total coliforms (TC), faecal coliforms (FC), and some physicochemical parameters (pH, temperature, turbidity, electrical conductivity, total dissolved solids, dissolved oxygen, biochemical oxygen demand, ammonium, nitrate, and phosphate) were determined following standard methods. …”
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  10. 490

    Differences in Biogeographic Patterns and Mechanisms of Assembly in Estuarine Bacterial and Protist Communities by Weiyue Zhang, Yunlei Zhang, Zhizhuo Shao, Yi Sun, Hongjun Li

    Published 2025-01-01
    “…Bacteria exhibited strong adaptability to salinity, while protists demonstrated greater resilience to variations in dissolved oxygen, nitrate, and ammonium concentrations. These results suggested differences in environmental adaptation strategies among microorganisms at different trophic levels, with bacteria demonstrating a more pronounced environmental filtering effect.…”
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  11. 491

    Fabrication of a vermifiltration unit for wastewater recycling and performance of vermifiltered water (vermiaqua) on onion (Allium cepa) by Chandrajeet Kumar, Ashok K. Ghosh

    Published 2024-01-01
    “…Results Vermiaqua was odorless, pale yellow in appearance, lower in turbidity and highly nutritive as ammonia and nitrate contents were highly increased. In E. coli-free vermiaqua, BOD5 loads were also reduced by 91%. …”
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  12. 492

    Using Diaper Waste to Prepare Magnetic Catalyst for the Synthesis of Glycerol Carbonate by Jincan Wang, Yong Liang, Song Wang, Patrick U. Okoye, Hongxu Chen, Yue Zhou, Jiening Xu, Zhenhao Meng, Lei Wang, Sanxi Li

    Published 2020-01-01
    “…Diaper waste was calcined above 400°C after impregnated in the solution of nickel nitrate. The as-prepared diaper waste-derived materials were used as magnetic catalysts for the synthesis of glycerol carbonate (GC). …”
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  13. 493

    Humic Acid Alleviates Low-Temperature Stress by Regulating Nitrogen Metabolism and Proline Synthesis in Melon (<i>Cucumis melo</i> L.) Seedlings by Libao Zhu, Haihe Liu, Yanping Zhang, Yanxia Cao, Yiwen Hu, Yalun Wang, Haiqiang Zheng, Mengze Liu

    Published 2024-12-01
    “…HA also promoted the degradation of nitrate nitrogen (NO<sub>3</sub><sup>−</sup>-N); the synthesis of ammonium nitrogen (NH<sub>4</sub><sup>+</sup>-N), free amino acids, proline, and soluble protein; and nitrogen metabolism (NR, GS, GOGAT, and GDH, up to 181.83%) and proline-related enzyme activity (P5CS and OAT, up to 81.97%). …”
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  14. 494

    Preparation of Graphene Nanosilver Composites for 3D Printing Technology by Xiujuan Liang, Haixu Ji

    Published 2022-01-01
    “…In the case of NaOH aqueous solution as a catalyst, silver nitrate and GO were used as precursors, and XRD, infrared spectrum, Raman spectrum, and other methods were used. …”
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  15. 495

    Immobilisation of Higher Activity Wastes from Nuclear Reactor Production of 99Mo by Martin W. A. Stewart, Eric R. Vance, Sam A. Moricca, Daniel R. Brew, Catherine Cheung, Tina Eddowes, Walter Bermudez

    Published 2013-01-01
    “…At ANSTO, we have legacy acidic uranyl-nitrate-rich intermediate level waste (ILW) from the latter, and an alkaline liquid ILW, a U-rich filter cake, plus a shorter lived liquid stream that rapidly decays to low-level waste (LLW) standards, from the former. …”
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  16. 496

    Groundwater quality evaluation and its suitability for domestic and irrigation use in the hard rock terrain of Olakkur block, Tamilnadu, India by D. Vinodh., S. Senthilkumar, B. Gowtham, Talelign Wegene, M. Jeevanandam

    Published 2022-01-01
    “…Groundwater samples were collected from twenty five locations in both pre-monsoon and post-monsoon months and examined for various physico-chemical parameters such as pH, total dissolved solids, total hardness, calcium, magnesium, sodium, potassium, bicarbonate, sulphate, Nitrate and chloride. To assess the domestic suitability of groundwater, all these parameters were compared with the standards of World Health Organization and Indian standards. …”
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  17. 497

    Leaf size indices and structure of the peat swamp forest by L.G. Aribal, J.G. Bonggay, E.S. Fernando

    Published 2017-12-01
    “…Peter G.Wilson and J.T.Waterh.The LSI were correlated against the variables of the peat physico-chemical properties (such as bulk density, acrotelm thickness, peat depth, total organic carbon, nitrogen, phosphorus, and potassium, pH); water (pH, ammonium, nitrate, phosphate); and leaf tissue elements (nitrogen, phosphorus and potassium).  …”
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  18. 498

    Assessment of water quality from different water supply sources in the Kyiv district of the city of Kharkiv by A. A. Lisnyak, M. I. Kulyk

    Published 2024-07-01
    “…Water samples from wells and centralized water supply have elevated levels of total hardness, chlorine, nitrate and iron content, which requires the restriction of their use as drinking water without additional treatment. …”
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  19. 499

    Exceptionally high work density of a ferroelectric dynamic organic crystal around room temperature by Durga Prasad Karothu, Rodrigo Ferreira, Ghada Dushaq, Ejaz Ahmed, Luca Catalano, Jad Mahmoud Halabi, Zainab Alhaddad, Ibrahim Tahir, Liang Li, Sharmarke Mohamed, Mahmoud Rasras, Panče Naumov

    Published 2022-05-01
    “…When transitioning at 295–305 K on heating and at 265–275 K on cooling the ferroelectric crystals of guanidinium nitrate exert a linear stroke of 51%, the highest value observed with a reversible operation of an organic single crystal actuator. …”
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  20. 500

    Biogenic Synthesis of Silver Nanoparticles (AgNPs) Using Aqueous Leaf Extract of Buchanania lanzan Spreng and Evaluation of Their Antifungal Activity against Phytopathogenic Fungi by Ayushi Purohit, Radheshyam Sharma, R. Shiv Ramakrishnan, Stuti Sharma, Ashish Kumar, Devendra Jain, Himmat S. Kushwaha, Elina Maharjan

    Published 2022-01-01
    “…In the present study, the aqueous leaf extract of Buchanania lanzan Spreng was mixed with 0.5 mM silver nitrate and incubated at 70°C for 1 h and synthesized a good quantity of AgNPs. …”
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