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1581
Scottish softwood biochar for water remediation targeting selected persistent organic pollutants
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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1582
Repensando el papel del nitrógeno y fósforo en la eutrofización de los ecosistemas acuáticos
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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1583
Determination of Heavy Metal Pollution in the Dankran River in the Bekwai Municipality of Ghana
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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1584
Sorptive Property Dependence of Catalytic Performance in -Xylene Isomerization over H/Ga-ZSM-5
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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1585
Extraction of S- and N-Compounds from the Mixture of Hydrocarbons by Ionic Liquids as Selective Solvents
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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1586
SYNTHESIS OF THE ZSM-5 ZEOLITE WITH MIXTURES BINARY OF TETRAETHYLAMMONIUM HYDROXIDE AND AMINES AS ORGANIC STRUCTURE DIRECTING AGENTS
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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1587
Lipid content and wastewater treatment potential of Chlorella vulgaris and Scenedesmus obliquus isolated from Uzuncayır Dam Lake
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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1588
Ethyl -butyl ether synthesis using carbon catalysts from lignocellulose
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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1589
Bioremediation of Parboiled Rice Effluent Supplemented with Biodiesel-Derived Glycerol Using Pichia pastoris X-33
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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1590
Coal Reservoir Characterization in a Tectonic Setting and the Effects of Tectonism on the Coalbed Methane (CBM) Content
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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1591
Impact of Rapid Urbanization on Shenzhen Water Environment
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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1592
Effect of Catalytic Gasification of Active Carbon from Plum Stones on its Mesoporous Structure
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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1593
Cryosurgery as an Option for the Treatment of Vascular Lesions of the Oral Cavity
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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1594
Quality Control Parameters of Ayurvedic Probiotic Formulation “Apakva Bilvaphalasara Dadhi”
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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1595
BLOOD MORPHOBIOCHEMICAL PARAMETERS of hereford cows IMPORTED FROM AUSTRALIA IN SPRING
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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1596
Synthesis and biological evaluation of some new heterocyclic derivatives from substituted thiopyrimidine
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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1597
Urban Fertilizer Ordinances in the Context of Environmental Horticulture and Water Quality Extension Programs: Frequently Asked Questions
Published 2020-02-01“… Excess nitrogen (N) and phosphorus (P) in water bodies are a leading cause of water quality degradation statewide. …”
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1598
Thermodynamic modeling of the Hf-N system
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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1599
Nutrient Status of Vermicompost of Urban Green Waste Processed by Three Earthworm Species—Eisenia fetida, Eudrilus eugeniae, and Perionyx excavatus
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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1600
The Value of Cryosurgery in Treating a Case of Thoracic Chondrosarcoma
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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