environmental and xenobiotics analysis
báo cáo hóa học:" Growth and structure analysis of tungsten oxide nanorods using environmental TEM" doc
Ngày tải lên :
21/06/2014, 17:20
... contributions TT carried out the TEM observation with TK and KT, and drafted the manuscript TK and KT controlled the environmental condition in environmental TEM when the sample was observed NN carried ... heating a tungsten wire in an oxygen atmosphere, and the growth of WO3 was observed by environmental TEM and HRTEM In particular, the initial and the middle growth were observed The growth mechanism ... TEM images and oxygen and tungsten mappings are shown in Figure Nanorods with diameters of about 10 to 20 nm and various lengths were confirmed in the TEM image in Figure 2a Oxygen and tungsten...
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PROGRESS IN MOLECULAR AND ENVIRONMENTAL BIOENGINEERING – FROM ANALYSIS AND MODELING TO TECHNOLOGY APPLICATIONS_2 pps
Ngày tải lên :
29/06/2014, 13:20
... in Molecular and Environmental Bioengineering – From Analysis and Modeling to Technology Applications chromatography The purity and the recovery of the final LF product were 94.20% and 82.46%, ... Molecular and Environmental Bioengineering – From Analysis and Modeling to Technology Applications PAGE and ELISA methods shown that the fraction in the second peak had higher purity and IgG activity ... hydrophobic interaction and facile elution by pH-induced charge repulsion between the Solute and ligand In 2008, Chen (Chen, 2008) evaluated standard HIC and new generation HIC and HIC-related chromatography...
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PROGRESS IN MOLECULAR AND ENVIRONMENTAL BIOENGINEERING – FROM ANALYSIS AND MODELING TO TECHNOLOGY APPLICATIONS_1 ppsx
Ngày tải lên :
29/06/2014, 13:20
... (Nonnenmacher and Metzler), and Podlubny (Podlubny) A brief history of the development of fractional calculus can be found in Miller and Ross (Miller and Ross) 4 Progress in Molecular and Environmental ... can be Progress in Molecular and Environmental Bioengineering – From Analysis and Modeling to Technology Applications appropriately assigned in an analysis (Miller and Ross) If for no other reason, ... Molecular and Environmental Bioengineering – From Analysis and Modeling to Technology Applications 14 A A = 11 A 21 A 22 (39) where A11 and A22 are square matrices of order m1 and m2,...
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ENCYCLOPEDIA OF ENVIRONMENTAL SCIENCE AND ENGINEERING - INSTRUMENTATION: WATER AND WASTEWATER ANALYSIS ppt
Ngày tải lên :
10/08/2014, 20:20
... following are detection limits and E1/2 resolution values i.e., ϫ 10Ϫ7 M and 0.05 V, ϫ 10Ϫ7 M and 0.2 V, and 10Ϫ9 M and 0.1 V for AC and normal pulse polarography, and stripping voltammetry, respectively ... 32P and 35S; gamma and x-ray energy dispersive spectrometry; and beta-gamma coincidence scintillation counting for 131I Standard Methods2 has procedures for the analysis of cesium-134 and 137, and ... environmental monitoring systems and manufacturing plants In addition the interfacing of these instruments and computer systems results in effective and creative data handling, computation, and...
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Environmental input output analysis emissions embodied in trade and structural decomposition analysis
Ngày tải lên :
09/09/2015, 18:53
... foundations, and has been widely used in various areas, such as general economic analysis, energy analysis, environmental/ ecological analysis and structural decomposition analysis (Rose and Miernyk, ... Andrew and Forgie Li and Hewitt McGregor et al Pan et al Peters and Hertwich Weber et al Druckman and Jackson Hertwich and Peters Nakano et al Wilting and Vringer Wood and Dey Xu et al Davis and ... Wyckoff and Roop Hetherington Schaeffer and de Sá Kondo and Moriguchi Lenzen Harris Machado et al Munksgaard and Pedersen Hayami and Nakamura Muradian et al Westin Ahmad and Wyckoff Tolmasquim and...
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Investigation and application of liquid chromatography mass spectrometry in the analysis of polar, less volatile and thermal unstable organic pollutants in environmental and biological samples 6
Ngày tải lên :
16/09/2015, 17:13
... water, rain water, river water and seawater under various pH and irradiation sources (sunlight, darkness, indoor incandescent lighting and artificial UV lighting) Hydrolysis was found to be very ... half-lives and degradation rates were obtained in various matrix and irradiation sources Based on kinetic studies, propoxur was found to degrade more rapidly at higher light exposure and pH Furthermore, ... analyze the residues of N-methylcarbamate and related compounds (propoxur and its metabolisms as model compounds) in biological materials (goldfish, tortoises and sea lettuce) Orthogonal array design...
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Investigation and application of liquid chromatography mass spectrometry in the analysis of polar, less volatile and thermal unstable organic pollutants in environmental and biological samples 5
Ngày tải lên :
16/09/2015, 17:13
... 60) SIM mode (m/z 151 and 210) in the negative and positive ion detection modes, respectively 5.3 RESULTS AND DISCUSSION 5.3.1 LC-MS Analysis The structures of propoxur and its two metabolites ... 80 °C extraction temperature, and 6-min microwave heating The differences between the distribution of propoxur and its transformation products in biota and soils, and additionally the difference ... the main variables (A, B, C and D), two-variable interaction, and the level setting values of the main variables applied to aquatic animals (goldfish and tortoises) and sea lettuce are displayed...
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Investigation and application of liquid chromatography mass spectrometry in the analysis of polar, less volatile and thermal unstable organic pollutants in environmental and biological samples 4
Ngày tải lên :
16/09/2015, 17:13
... pressure and heating duration 74 4.1.2 Experimental 4.1.2.1 Reagents and soil preparation Analytical-grade PAHs (naphthalene and phenanthrene), PCB (PCB-1242 and PCB1248), triazine (atrazine 98% and ... solubility of triazines in water and the strong ability of water to absorb microwave energy Arising from this observation, water is a safe and environmentally friendly solvent, and should be considered ... for the analysis of carbamate pesticides Recently, Jeong and Chesney used SFE to extract three N-methylcarbamate pesticides (carbaryl, aldicarb, and carbofuran) from spiked filter paper and silica...
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Investigation and application of liquid chromatography mass spectrometry in the analysis of polar, less volatile and thermal unstable organic pollutants in environmental and biological samples 3
Ngày tải lên :
16/09/2015, 17:13
... 0.994, 0.996 and 0.995 for methanol-water-based standards, ultrapure-water-based standards and methanol-based standards, respectively In addition, the use of solvent-based or matrix-based standards ... RESULTS AND DISCUSSION 3.3.1 Identification of TPs of Propoxur and Comparison of ESI and APCI The results showed that under alkaline condition (0.5M NaOH), propoxur was hydrolyzed to two TPs (1, and ... under different pH and irradiation sources (sunlight, darkness, indoor incandescent lighting and artificial UV light) by using LC-APCI-ITMS with selected ion monitoring mode; and (3) To investigate...
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Investigation and application of liquid chromatography mass spectrometry in the analysis of polar, less volatile and thermal unstable organic pollutants in environmental and biological samples 2
Ngày tải lên :
16/09/2015, 17:13
... L-methionyl-arginyl-phenylananyl-alanine acetate·H2O and a mixture of perfluoroalkoxycyclotriphosphazenes in both positive and negative ionization modes as suggested by the manufacturer GC analysis was performed by a ... compound and stored at - 4°C Working solutions were prepared by diluting the stock solutions with acetone Polychlorinated biphenyls (PCB-1242 and PCB-1248) were purchased as individual standard ... Ultra-Scientific Atrazine (purity 98%) and simazine (purity 99%) were purchased from Supelco Stock solutions (1000 µg/ml) were prepared by dissolving the solid standards in acetone and stored under refrigeration...
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Investigation and application of liquid chromatography mass spectrometry in the analysis of polar, less volatile and thermal unstable organic pollutants in environmental and biological samples 1
Ngày tải lên :
16/09/2015, 17:13
... in the analysis of polar, low volatile, and thermally instable organic compounds, for which direct analysis by GCMS is not possible [2] 1.2 INTRODUCTION AND BASIC PRINCIPLES 1.2.1 LC and MS Liquid ... identification and quantitation Among these, sample preparation is the most tedious and time-consuming step, and usually the source of imprecision and inaccuracy of the overall analysis Currently, ... Certified values compared to Soxhlet, sonication and SFE Ref PAHs Standard reference soils and sediments Hexane– acetone (1:1) PAHs Standard reference and native sediments Hexane– acetone (1:1) 115...
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Static and Dynamic Analysis of Space frames
Ngày tải lên :
06/09/2012, 15:18
... cases, superposition files and influence lines 3.64 Version 8.38.03 • • • • Use of combination codes “SupOrX” and “SupAndX” for superposition files corrected New command “PLSCFAC” in plot file ... Önorm Standard 4700, British Standard 5400 and Honk Kong Standard 5400 3.81 Version 8.34.02 • Minor changes 3.82 Version 8.34.01 • • • • • • Tendon results (primary and secondary forces) can be ... • • • • Width and height of composite section for wind load corrected Extended printout for shear check (AAHSTO) Minor changes and error corrections in import/export with non-standard units LIST:GEN...
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Static and Dynamic Analysis of Spaceframes
Ngày tải lên :
06/09/2012, 15:55
... Disclaimer and Copyright Disclaimer Much time and effort have gone into the development and documentation of RM2000 and GP2000 The programs have been thoroughly tested and used The user accepts and ... Supposition: Main Girder Axis and segment, Cross Section for the girder plus the cross section for the piers plus the Segment numbering and assignment and Part numbering and assignment for the main ... –10 and top is at height in steps of metres Select the ‘Edit’ icon and assign the pier cross section to the segment points Choose ‘Parts’ and then the ‘Edit’ icon Enter the material type, and...
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Static and Dynamic Analysis of Spaceframes
Ngày tải lên :
06/09/2012, 15:55
... Disclaimer and Copyright Disclaimer Much time and effort have gone into the development and documentation iof RM2000 and GP2000 The programs have been thoroughly tested and used The user accepts and ... commands, i.e loops, conditions, etc can be used in scripts Two different command groups for interfacing RM with the script are provided: • Input commands • Result analysis commands Input commands: ... has and is defined as the angle between the two planes defined by the local x and y axes on the one hand (1st (main) principal inertia plane) and the local x and global YG-axis on the other hand...
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SAP2000® Linear and Nonlinear Static and Dynamic Analysis and Design of Three-Dimensional Structures
Ngày tải lên :
06/09/2012, 15:56
... used in the analysis The message in Figure 37 indicates that the analysis and design sections are different The goal is to repeat the analysis and design process until the analysis and design ... Run Analysis command or the Run Analysis button, and then click the Run Now button on the Set Analysis Cases to Run form F When the analysis is complete, click the OK button to close the analysis ... both Load Cases and Analysis Cases exist, and they may be different However, the program automatically creates a corresponding analysis case when a load case is defined, and the analysis cases...
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Climate change as environmental and economic hazard - phần 1.1
Ngày tải lên :
07/10/2012, 15:56
... conceptualization of the multiplicity and salience of major challenges to development and security, all of which require political and public awareness and economic resources for timely and efficient policy treatment ... In particular – and of no less significance than climate change – natural and humanmade hazards should be considered and contrasted ENVIRONMENTAL HAZARDS against climate change and its implications ... of risks, costs and benefits of handling these hazards using a multicriteria and systems approach towards the setting of policy priorities and resource sharing In addition to and developing from...
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Climate change as environmental and economic hazard - phần 1.2
Ngày tải lên :
07/10/2012, 15:56
... learning and the social sources of adaptability, renewal and transformation; and (3) and understanding ENVIRONMENTAL HAZARDS of change and uncertainty as inherent in social-ecological systems ... et al (2003) attribute coping capacity and adaptive capacity as separate dimensions of resilience, Smit and Wandel (2006) lump them together To Smit and Wandel (2006), adaptive capacity is equivalent ... flooding, landslides and windstorms Extreme temperature events and earthquakes seem to follow the traditional thought more closely This has significant policy and practical implications for ENVIRONMENTAL...
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Climate change as environmental and economic hazard - phần 1.3
Ngày tải lên :
07/10/2012, 15:56
... P., Pritchard, L and Young, O., 2006 Scale and cross-scale dynamics: governance and ENVIRONMENTAL HAZARDS information in a multilevel world Ecology and Society, 11(2) Coleman, F C and Williams, ... scholars, and increase collaboration between the young and the seasoned within academic institutions, development and relief organizations and government We see this path, embedded in adaptive and ... construction Science and Public Policy, 30(4) 235 Helmer, M and Hilhorst, D J M., 2006 Natural disasters and climate change Disasters, 30(1) – Hogarth, R M and Kunreuther, H C., 1985 Ambiguity and insurance...
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Climate change as environmental and economic hazard - phần 1.4
Ngày tải lên :
07/10/2012, 15:57
... variability in landfalls 3.2 Landfall rates and proportion Table shows for three different periods – 1900 – 2008, 1951–2008 and 1979–2008 – the frequency of annual landfalls in the first and second ... relationships of ENSO, NAO and AMO on landfalling storms and damage (e.g Elsner and Jagger, 2006; Jagger et al., 2008) Elsner and Jagger (2008) find a relationship between the solar cycle and US hurricane ... hurricane season, and in each case predicting landfall numbers to be above average For these three years the number of landfalls was well below the historical mean in 2006 and 2007 and above average...
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Climate change as environmental and economic hazard - phần 1.5
Ngày tải lên :
07/10/2012, 15:57
... can and cannot be known about the uncertain future And such wisdom starts with understanding the historical record and why the scientific community cannot produce skilful forecasts of future landfalls ... States hurricane landfalls and damages 199 Coughlin, K., Bellone, E., Laepple, T., Jewson, S and Nzerem, K., 2009 A relationship between all Atlantic hurricanes and those that make landfall in the ... doi:10.1038/nature04477 Landsea, C W., 2007 Counting Atlantic Tropical Cyclones back to 1900 EOS, 88 197 and 202 Lonfat, M., Boissonnade, A and Muir-Wood, R., 2007 Atlantic Basin, US and Caribbean landfall rates...
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