Showing 361 - 380 results of 810 for search '"nitrate"', query time: 0.04s Refine Results
  1. 361

    An Internet-Based Simulation Model for Nitrogen Management in Agricultural Settings by M.J. Shaffer, B.J. Newton, C.M. Gross

    Published 2001-01-01
    “…Department of Agriculture (USDA) has developed an Internet-based nitrogen analysis tool. Based on the Nitrate Leaching and Economic Analysis Package (NLEAP), the Web site allows a user to conduct multiyear N simulation modeling specific to a crop field. …”
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  2. 362

    Physiological impact of Trichoderma viride agents on the quality and production of melon that is grown on soils continuously cropped to melon by Jingyi Liu, Hua Lian, Jingwei Dou, Jingjing Li, Guangliang Zhu, Jiatong Wang, Guangshu Ma, Mei Li

    Published 2025-02-01
    “…The results showed that different amounts of T. viride agents could improve physiological and biochemical indices of melon leaves during the fruiting stage; the treatment of 6.4 × 105 CFU/g was the most effective; chlorophyll content, nitrate nitrogen content, sucrose content, reducing sugar content, free proline content, nitrate reductase (NR) activity, peroxidase (POD) activity, and superoxide dismutase (SOD) activity of melon leaves increased at 30 days after melon pollination. …”
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  3. 363

    PM2.5 Emission Elemental Composition from Diverse Combustion Sources in the Metropolitan Area of Mexico City by V. Mugica, F. Mugica, M. Torres, J. Figueroa

    Published 2008-01-01
    “…The OC/TC ratio found in the different PM2.5 profiles was dissimilar as well as the sulfate, nitrate, ammonium, soil species, and trace element content. …”
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  4. 364

    Waste Water Reduction Using Four Densities of Seaweed to Improve Water Quality for White Leg Shrimp (Litopenaeus white leg) Culture: Laboratory Scale by Gamal M. Samadan, Aras Syazili, Supyan Supyan, Muhammad Nur Findra

    Published 2024-05-01
    “…The study' goals were to determine how well Gracilaria sp. developed and how well seaweed absorbed N and P elements from vaname shrimp culture waste, specifically ammonia (NH3), nitrite (NO2), and nitrate (NO3). Three different treatments for the weights of the seaweed were employed in the study: 50, 75, and 100 grams. …”
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  5. 365

    Investigation of inorganic nutrients and pollutants in private gardens in central Germany using citizen science by Christoph Koch, Maria Peter

    Published 2025-04-01
    “…In addition, samples in which particularly high concentrations of pollutants were found were extracted with ammonium nitrate to examine the substances that are readily available to plants. …”
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  6. 366

    Effect of preparation method on the microstructure and optical properties of Y2O3–MgO composite ceramics by Xi Zhang, Xiao Li, Jun Yin, Shengquan Yu, Jing Wan

    Published 2025-04-01
    “…Yttrium oxide–magnesium oxide (Y2O3–MgO) composite nanopowders were synthesized via three distinct methods: sol–gel, co-precipitation and glycine–nitrate process. The synthesized powders were calcined at various temperatures, and their microstructure, specific surface area and particle size were characterized. …”
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  7. 367

    Structural, Surface and Catalytic Properties of Nano-Sized Ceria Catalysts by N.M. Deraz, A. Alarifi

    Published 2009-05-01
    “…Well-dispersed uniform spheres of crystalline CeO 2 were prepared by calcining precursor particles obtained by heating ammonium cerium nitrate for 4 h. These spherical substrates were examined using XRD and TEM methods, and by nitrogen adsorption studies at −196 °C. …”
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  8. 368

    Mechanical Compression Behaviour of "Green" Rocket Propellants by Florin M. DÎRLOMAN, Traian ROTARIU, Adrian N. ROTARIU, Gabriela TOADER, Liviu C. MATACHE, Gabriel F. NOJA

    Published 2023-06-01
    “…Thus, in this study, four new types of composite rocket propellants, based on an environmentally friendly oxidizer (phase-stabilized ammonium nitrate), a metallic fuel (aluminium), and a "green" polyurethane-based binder (synthesized from an oligomeric isocyanate and a blend of polyester-polyols obtained through the catalytic degradation of polyethylene terephthalate), were subjected to compression mechanical analysis in order to highlight the importance of the binder on the response given by the tested materials subjected to compressive loads. …”
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  9. 369

    Structural Modification of Sol-Gel Synthesized V2O5 and TiO2 Thin Films with/without Erbium Doping by Fatma Pınar Gökdemir, Ayşe Evrim Saatci, Orhan Özdemir, Kubilay Kutlu

    Published 2014-01-01
    “…Comparative work of with/without erbium- (Er-) doped vanadium pentoxide (V2O5) and titanium dioxide (TiO2) thin films were carried out via sol-gel technique by dissolving erbium (III) nitrate pentahydrate (Er(NO3)3·5H2O) in vanadium (V) oxoisopropoxide (OV[OCH(CH3)2]3) and titanium (IV) isopropoxide (Ti[OCH(CH3)2]4). …”
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  10. 370

    Ground Water Quality Determination of former Lake Haramaya, Haramaya District, Eastern Haranghe Zone, Oroma Regional State, Ethiopia by Zinabu Tebeje Zewdu

    Published 2013-07-01
    “…Based on TDS and hardness the samples were classified as fresh and very hard water. 33.3 percent of Fluoride (mg/l) and 66.67 percent of Nitrate (mg/l) results were higher than WHO recommended value with mean of 0.88 ± 0.18 and 17.6 ± 4.4 respectively. 66.7 percent of the turbidity was found to be above the WHO limit and 83.3 percent of the samples have total colifoms above the guideline value and it reveal the necessity of treatment before use. …”
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  11. 371

    A Localized Surface Plasmon Resonance Sensing Method for Simultaneous Determination of Atenolol and Amiloride in Pharmaceutical Dosage Forms and Urine Samples by Marwa R. El-Zahry

    Published 2018-01-01
    “…Silver nanoparticles were prepared by chemical reduction of silver nitrate using hydroxylamine HCL in an alkaline medium. …”
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  12. 372

    Biodegradation Potential of Oil-based Drill Cuttings Encapsulated with Cement in the Soil Environment by Rim-Rukeh Akpofure

    Published 2013-05-01
    “…Results of soil analyses show that physico-chemical and biological characteristics of the soil environment as; pH (5.6 – 3.9), temperature (27.7 – 39.5 oC), redox potential (-114mV – (-80mV), total organic carbon (12.7% - 7.3%), sulphate (0.7 – 0.2mg/l), nitrate (6.7 – 2.2mg/l), moisture content (82-89%) and total microbial count (105 – 1013 cfu/g). …”
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  13. 373

    Phosphate Ion Removal from Aqueous Solution Using an Iron Oxide-Coated Fly Ash Adsorbent by Shuhua Yao, Jinyan Li, Zhongliang Shi

    Published 2009-07-01
    “…The ability of an iron oxide/fly ash composite adsorbent prepared with municipal solid waste fly ash and iron nitrate to remove phosphate ions from aqueous solutions has been tested. …”
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  14. 374

    Multicompartment Ecosystem Mass Balances as a Tool for Understanding and Managing the Biogeochemical Cycles of Human Ecosystems by Lawrence A. Baker, Diane Hope, Ying Xu, Jennifer Edmonds

    Published 2001-01-01
    “…The N balance is used to demonstrate how nitrate in pumped groundwater used for crop irrigation could be used to reduce inputs of commercial fertilizer and decrease N leaching to aquifers. …”
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  15. 375

    Biodegradation Potential of Oil-based Drill Cuttings Encapsulated with Cement in the Soil Environment by Rim-Rukeh Akpofure

    Published 2013-05-01
    “…Results of soil analyses show that physico-chemical and biological characteristics of the soil environment as; pH (5.6 – 3.9), temperature (27.7 – 39.5 oC), redox potential (-114mV – (-80mV), total organic carbon (12.7% - 7.3%), sulphate (0.7 – 0.2mg/l), nitrate (6.7 – 2.2mg/l), moisture content (82-89%) and total microbial count (105 – 1013 cfu/g). …”
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  16. 376

    Hemoglobin: A Nitric-Oxide Dioxygenase by Paul R. Gardner

    Published 2012-01-01
    “…The mechanism of NOD catalysis by representative single domain hemoglobins and multidomain flavohemoglobin occurs through a multistep mechanism involving O2 migration to the heme pocket, O2 binding-reduction, NO migration, radical-radical coupling, O-atom rearrangement, nitrate release, and heme iron re-reduction. Unraveling the physiological functions of multiple NODs with varying expression in organisms and the complexity of NO as both a poison and signaling molecule remain grand challenges for the NO field. …”
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  17. 377

    Impacts of Effluents on the Limnology of a Tropical River, Southwestern Nigeria by Abeke Adedolapo Ayoade, A Olajumoke Olusegun

    Published 2013-07-01
    “…The mean biochemical oxygen demand (106.9 ± 58.25 mg/l), Nitrate (40 ± 30.8 mg/l), dissolved oxygen (4.2 ± 2.16 mg/l) and total suspended solids (124.02 ± 16.09 mg/l) were not within permissible standard limits suitable for aquatic life and domestic purposes. …”
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  18. 378

    The Effects of Circadian Rhythm on Lead-Induced Toxicity in the DBC1.2 Olfactory Dark Basal Cell Line by Teru Kamogashira, Shu Kikuta, Tatsuya Yamasoba

    Published 2025-01-01
    “…Then, 60 h after seeding, the cells were treated with or without Pb (II) nitrate in HEPES buffer for 1 h. Mitochondrial function and cell viability were evaluated 84 h after seeding. …”
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  19. 379

    Regionalization of water quality parameters based on the landscape characteristics of small ungauged basins by Danilo Garofalo, Marcos Ferreira

    Published 2022-03-01
    “…The mapped regions showed significant differences among the total dissolved solids, chloride, electric conductivity, pH, salinity, resistivity, dissolved oxygen, and nitrate parameter values. …”
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  20. 380

    Ecosystem Processes and Nitrogen Export in Northern U.S. Watersheds by Robert Stottlemyer

    Published 2001-01-01
    “…The ratio of mean monthly headwater nitrate (NO3–) concentration to precipitation NO3– concentration declined with increased precipitation concentration. …”
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