Input and output of dissolved organic and inorganic nitrogen in subtropical forests of South China under high air pollution docx
Input and output of dissolved organic and inorganic nitrogen in subtropical forests of South China under high air pollution docx
... forum of Biogeosciences Input and output of dissolved organic and inorganic nitrogen in subtropical forests of South China under high air pollution Y. T. Fang1, P. Gundersen2, J. M. Mo1, and ... precipitation input (in boththe pine and mixed forest) or increased (in the old-growth forest) after the interaction4144BGD4, 4135–4171, 2007 Input- output of N in subtropical forests under air pollution Y. ... conifer-dominant canopies in the pine and mixed forests repre-senting from 15% to 28% of their DIN input in precipitation (Table 2). Our results are,4149BGD4, 4135–4171, 2007 Input- output of N in subtropical...
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Effect of dissolved organic matter (DOM) and biofilm on the adsorption capacity of powdered activated carbon in activated sludge
... the effect of DOM and biofilm attached onto PAC were decrease in adsorption capacity of PAC in the aeration tank. The objective of this study is to clarify the effect of DOM and biofilm on the ... suspended into 495 ml of the glucose medium in an Erlenmyer flask as an inoculum. Then, 5 g of PAC was added into the flask and shaken at 120 rpm and 20±0.5 oC. After the depletion of DOC in the ... The washing solution was separated from PAC by centrifugation (8,000 rpm, 20 minutes) to determine. The amount of organic carbon in washing solution was determined as the amount of biofilm developed...
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Controls of bioavailability and biodegradability of dissolved organic matter in soils
... Biodegradation; Dissolved organic matter; DOC1. Introduction In the past 10 years, much progress has been made in the understanding of dissolved organic matter (DOM) functions and dynamics in soils. ... effective in reducing themineralisation of 0.5 mM citrate or oxalate. Boudot et al. (1989) found inhibiting effects of Al and Fe on citrate mineralisation only at molar ratios of at least 0.97 and ... potential and fractions of organic carbon in air- dried and field-moist soils. Soil Biol. Biochem. 20, 737 – 741.Blaser, P., 1994. The role of natural organic matter in the dynamics of metals in forest...
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Present Status and Feature of Groundwater Contamination by Nitrate-nitrogen in Kumamoto City
... groundwater of Kumamoto city was investigated. Nitrate -nitrogen was detected in the range from 0.2 to 5.8 mg/l in the groundwater of deep wells at 22 points out of total 30 sampling points including ... structure and groundwater flow in the second aquifer (the third aquifer in Kinbo volcano area) in Kumamoto city with sampling points. The allows indicate groundwater flow. Location and grouping of ... zone having impermeable bed (nos. 13-16 points). At nos. 16 and 18 sampling points, the NO3-N concentration in shallow well was higher than in deep well as shown in Fig. 5, indicating that...
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Biological Alteration of Zinc Complexation Characteristics of Dissolved Organic Matter in Domestic Wastewater Treatment Plant Effluent under River Water Environment
... explained in Chaminda et al. (2010) and in the Appendix of this paper. RESULTS AND DISCUSSION Biodegradability of zinc binding sites in river water DOM Fig. 1 represents the variation of ... As shown in Fig. 2 and Table 1, Zn titration data obtained for DOM in the original river water sample seems to fit into two linear portions indicating two classes of binding sites. In contrast, ... first 4 days of incubation period and became persistent. This degradation of binding sites was also in line with the increment of labile Zn concentration during the first 4 days of incubation....
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Influence of Phosphorus Concentration on the Biodegradation of Dissolved Organic Matter in Lake Biwa, Japan
... Biwa is divided into two basins, south and north. The southern basin is shallow and small with a mean depth of 4 m and a volume of only 0.2 km3, but the northern basin is deep and large with ... basin of Lake Biwa. Consequently, DOM in 2000s was expected to be 1.6 times higher than that in 1980s. Since the ratio of CODMn observed in 2000s to that in 1980s in the northern basin of ... threshold of CDP, and K is a half saturation constant for CDP–TDP. The fitting curve obtained is also shown in Fig. 3 and the constants of the obtained regression lines and the coefficient of...
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Tài liệu Báo cáo khoa học: Modulation of a-synuclein aggregation by dopamine in the presence of MPTP and its metabolite pptx
... line), in the presence of 100 lM neurotoxin (•, dotted line), in thepresence of 200 lM neurotoxin ( , dottedline) and in the presence of neurotoxin and 50 lM dopamine (h, dashed line).Modulation ... abetter understanding of the role of various interactingcomponents. The formation of dopamine–quinoneadducts (because of auto-oxidation of the neurotrans-mitter), especially dopaminochrome, ... (C), in the presence of 100 lM MPP+(D), in the presence of 200 lM MPP+(E), in the presence of 100 lM MPTP and 50 lM dopamine (F), in the presence of 200 lM MPTP and 50 lM dopamine (G), in the...
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Correlation of the partitioning of dissolved organic matter fractions with the desorption of cd
... studies have also included the effects of Ca onthe binding and dissolution behavior of OM in soils and aquatic systems. Mandal et al. (2000) examined the effects of Ca and Mg on Ni binding by FA. They ... Jordan et al. (1997)examined the increased mobility of Pb in the presence of natural organic matter in a sandy soil. They found that peathumic acids had a higher binding affinity for Pb than peatfulvic ... remains more constant as a function of pH, and therelative percentage of the Hyd fraction decreases withincreasing pH. The y-axes in Fig. 2a and c are in log form and thus show the striking increase...
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Báo cáo khoa học: Purification and characterization of three isoforms of chrysophsin, a novel antimicrobial peptide in the gills of the red sea bream, Chrysophrys major doc
... localization of chrysophsins in the gills of the red sea bream. Adjacent sections in the gills were immunostainedwith chrysophsin-1 antibody (A, C, E and F) and with hematoxylin and eosin (D, F and H) ... DC-protein assay kit using BSA asstandard. The concentration of purified and syntheticchrysophsin-1 and chrysophsin-2 was obtained from theA280[24], and that of chrysophsin-3 with the DC-proteinassay ... chrysophsin-1isoform differing by a single residue at position 7 (lysine orarginine). Interestingly, the characteristic C-terminal cat-ionic tetrapeptide, RRRH, is conserved in chrysophsins, in addition...
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Electricity Restructuring and Regional Air Pollution docx
... Restructuring and Regional Air Pollution -27-MAIN, MAAC and MAPP with 65% of the additional generation for export coming from MAIN and MAPP. In these scenarios, the major importers are SERC, SPP and ... year, depending on howmuch existing coal-fired generation is employed. In addition, in their analysis of the impacts of increased utilization of existing coal plants,they find that raising the ... Restructuring and Regional Air Pollution -11-The virtue of the Lee and Darani study lies in the simplicity of the methodology and theexplicitness of their assumptions. However, as a result of its...
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