Showing 1,581 - 1,600 results of 3,087 for search '"nitrogen"', query time: 0.07s Refine Results
  1. 1581

    Scottish softwood biochar for water remediation targeting selected persistent organic pollutants by Mohammad Umair Jamal, Ashleigh Fletcher, Alan Baby, Isaac Maso, Lidija Šiller

    Published 2024-05-01
    “…Morphological analysis revealed a layered carbon structure and spectroscopic analysis showed the presence of oxygen and nitrogen-based functionalities alongside 80% atomic carbon. …”
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    Article
  2. 1582

    Repensando el papel del nitrógeno y fósforo en la eutrofización de los ecosistemas acuáticos by H. Dail Laughinghouse, Ashley Smyth, Karl Havens, Thomas Frazer

    Published 2022-04-01
    “…Dail Laughinghouse IV, Ashley Smyth, Karl Havens, and Thomas Frazer, is a translation of SGEF190/SG118, "Rethinking the Role of Nitrogen and Phosphorus in the Eutrophication of Aquatic Ecosystems." https://edis.ifas.ufl.edu/sg191 …”
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  3. 1583

    Determination of Heavy Metal Pollution in the Dankran River in the Bekwai Municipality of Ghana by Vivian Afriyie, Lyndon N. A. Sackey, Linda Aurelia Ofori

    Published 2022-01-01
    “…The physicochemical properties, the biological oxygen demand (BOD), chemical oxygen demand (COD), and nitrogen, phosphorus, and potassium (NPK) concentrations were all within the allowable healthy limits according to WHO standards. …”
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  4. 1584

    Sorptive Property Dependence of Catalytic Performance in -Xylene Isomerization over H/Ga-ZSM-5 by S.V. Awate, P.N. Joshi, V.P. Shiralkar

    Published 1999-03-01
    “…The influence of the framework composition on the BET surface area and micropore void volume was examined using low-temperature nitrogen sorption. Sorption uptake kinetics using different probe molecules such as water, n-hexane, cyclohexane, o-, m- and p -isomers of xylenes, n-butylamine and tributylamine were also studied. …”
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  5. 1585

    Extraction of S- and N-Compounds from the Mixture of Hydrocarbons by Ionic Liquids as Selective Solvents by Beata Gabrić, Aleksandra Sander, Marina Cvjetko Bubalo, Dejan Macut

    Published 2013-01-01
    “…Recent approaches employ different ionic liquids as selective solvents, due to their general immiscibility with gasoline and diesel, negligible vapor pressure, and high selectivity to sulfur- and nitrogen-containing compounds. For that reason, five imidazolium-based ionic liquids and one pyridinium-based ionic liquid were selected for extraction of thiophene, dibenzothiophene, and pyridine from two model solutions. …”
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  6. 1586

    SYNTHESIS OF THE ZSM-5 ZEOLITE WITH MIXTURES BINARY OF TETRAETHYLAMMONIUM HYDROXIDE AND AMINES AS ORGANIC STRUCTURE DIRECTING AGENTS by Diogo Pimentel de Sá da Silva, Bruno José Barros da Silva, Antonio Osimar Sousa da Silva

    Published 2020-09-01
    “…X-ray diffractometry indicated that only the reaction system containing TEAOH and n-butylamine provided the achievement of highly crystalline ZSM-5 and without competing phases. The nitrogen adsorption-desorption isotherms indicated that a material with a high surface area (329 m2·g-1) and pore volume (0.26 cm3·g-1) was obtained. …”
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  7. 1587

    Lipid content and wastewater treatment potential of Chlorella vulgaris and Scenedesmus obliquus isolated from Uzuncayır Dam Lake by Can Şafak Seyhaneyıldız, Can Erkan, Yılmaz Kadir

    Published 2024-09-01
    “…Industrial and domestic wastewater contains nitrogen, phosphorus and other nutrients that are the primary food source for algae. …”
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  8. 1588

    Ethyl -butyl ether synthesis using carbon catalysts from lignocellulose by Alexander M Puziy, Yuriy N Kochkin, Olga I Poddubnaya, Mykola M Tsyba

    Published 2017-06-01
    “…Porous structure of carbon catalysts was characterized by nitrogen adsorption. Surface chemistry was investigated by potentiometric titration. …”
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  9. 1589

    Bioremediation of Parboiled Rice Effluent Supplemented with Biodiesel-Derived Glycerol Using Pichia pastoris X-33 by Diego Gil de los Santos, Carlos Gil Turnes, Fabricio Rochedo Conceição

    Published 2012-01-01
    “…This paper describes the use of Pichia pastoris X-33 as a bioremediator to reduce the chemical oxygen demand (COD), total Kjeldahl nitrogen (TKN), and phosphorus (P-PO43−), after culture in parboiled rice effluent supplemented with p.a. glycerol or a glycerol by-product of the biodiesel industry. …”
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  10. 1590

    Coal Reservoir Characterization in a Tectonic Setting and the Effects of Tectonism on the Coalbed Methane (CBM) Content by Zhenni Ye, Enke Hou, Zhonghui Duan, Zengjiang Li

    Published 2019-01-01
    “…In this study, micropore-microfracture structural parameters of coal samples from the Guojiahe coalfield are determined through the use of X-ray photography, an image recognition algorithm, and a liquid nitrogen adsorption method. The relationship between the micropore-microfracture characteristics of the reservoir and the gas content is quantitatively assessed using the Grassberger and Procaccia (GP) algorithm to calculate the correlation dimension of the parameters. …”
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  11. 1591

    Impact of Rapid Urbanization on Shenzhen Water Environment by JIANG Yu, ZHANG Qiuying, LI Fadong, HU Jiangling, LI Caole, WANG Fan

    Published 2023-01-01
    “…The water environment of Shenzhen Bay,one of the key waters in the Guangdong-Hong Kong-Macao Greater Bay Area,is mainly influenced by the urbanization of the surrounding areas.Water resource protection and water environment governance are particularly important for Shenzhen,a water-deficient city.This paper explores the specific influence relationship between each factor and the water environment in the process of urbanization.The comprehensive water pollution index and Pearson correlation analysis are utilized to analyze the relationship of the changes in population size and industrial structure with the water environment of Shenzhen Bay in urbanization.The research shows that the main pollutants in the water environment of Shenzhen Bay are chemical oxygen demand (COD) and ammonia nitrogen (NH<sub>3</sub>-N),and some pollutants come from urban non-point source pollution.The water quality in Nanshan District is good,while that in Futian District is poor,but the overall water quality shows a trend of improvement.The water environment is less affected by population change and more affected by industrial structure change.Therefore,formulating reasonable policies to guide the transformation of the industrial structure is an effective way to improve the water environment of Shenzhen Bay.…”
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  12. 1592

    Effect of Catalytic Gasification of Active Carbon from Plum Stones on its Mesoporous Structure by R. Leboda, W. Grzegorczyk, A. Lodyga, A. Dabrowski

    Published 1993-03-01
    “…The characteristics of the micro- and meso-porous structures of the adsorbents have been determined from the adsorption–desorption isotherms of nitrogen. The data have been submitted to treatment from the BET, Harkins–Jura, Sing as well as Derjaguin, Broeckhoff, de Boer and Dubinin equations. …”
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  13. 1593

    Cryosurgery as an Option for the Treatment of Vascular Lesions of the Oral Cavity by Pedro Thalles Bernardo de Carvalho Nogueira, Mariana Maria Castro Jatobá Remigio, Andreza Maria Correia de Queiroz, Andréia Aparecida da Silva, José Rodrigues Laureano Filho

    Published 2017-01-01
    “…We report the case of a patient with a hemangiomatous lesion of the oral cavity who was treated with liquid nitrogen spray cryosurgery, with successful results at 18-month follow-up.…”
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  14. 1594

    Quality Control Parameters of Ayurvedic Probiotic Formulation “Apakva Bilvaphalasara Dadhi” by Sanjeev Shivappa Tonni, Rudramma Rachayya Hiremath, Nayeem Khatib

    Published 2024-12-01
    “…The macroelements, namely, nitrogen potassium, phosphorus, magnesium, calcium, and sodium, were 0.87% ± 0.06%, 0.17% ± 0.02%, 1.44% ± 0.40%, 0.54% ± 0.02%, 0.22% ± 0.01%, and 0.24% ± 0.02%, respectively. …”
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  15. 1595

    BLOOD MORPHOBIOCHEMICAL PARAMETERS of hereford cows IMPORTED FROM AUSTRALIA IN SPRING by M. S. Mansurova

    Published 2018-04-01
    “…Deterioration in some types of metabolic processes was noted in mother cows, in particular based on sera test results, the decrease in albumen synthesis resulting from the increase in blood urea nitrogen in protein metabolism, reduction of glucose content in carbohydrate metabolism, low contents of calcium and magnesium in the mineral metabolism. …”
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  16. 1596

    Synthesis and biological evaluation of some new heterocyclic derivatives from substituted thiopyrimidine by Aziz Hadil S., Al-Araj Intisar Q.M., Abdul-Raheem Linda R., Ahmed Amena A.

    Published 2024-01-01
    “…This study aimed at creation of a few new heterocyclic compounds that include sulfur and nitrogen atoms. Also, some chalcones, thiazolidine and Schiff base derivatives have been prepared. …”
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  17. 1597
  18. 1598

    Thermodynamic modeling of the Hf-N system by Pang M., Peng Y., Zhou P., Du Y.

    Published 2018-01-01
    “…The Fcc phase is modeled as (Hf, Va)1(N, Va)1 to cover the composition range since the solubility of nitrogen in Fcc phase is reported up to about 52 at.%. …”
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  19. 1599

    Nutrient Status of Vermicompost of Urban Green Waste Processed by Three Earthworm Species—Eisenia fetida, Eudrilus eugeniae, and Perionyx excavatus by Swati Pattnaik, M. Vikram Reddy

    Published 2010-01-01
    “…Their physical parameters—temperature, moisture, pH, and electrical conductivity—were also recorded. The nutrients—nitrogen, phosphorus, potassium, calcium, and magnesium—increased in the vermicompost and compost while the organic carbon, C/N and C/P ratios decreased as the composting process progressed from 0 to 15, 30, 45, and 60 days. …”
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  20. 1600

    The Value of Cryosurgery in Treating a Case of Thoracic Chondrosarcoma by Kalliopi Alpantaki, George Datsis, Odysseas Zoras, Alkisti Kampouroglou, Ioannis Drositis, George Halkiadakis, Pavlos Katonis

    Published 2011-01-01
    “…Our patient was treated in two stages, with total excision of the tumor, using cryosurgery. Liquid nitrogen was used to freeze the damaged tissue at a cellular level and made the excision more efficient.…”
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