sorption and desorption curves
Evaluation of sorption and desorption
Ngày tải lên :
16/03/2014, 00:07
... very comprehensive and detailed review covering theoretical aspects and the principal characteristics and methods of synthesis of this type of resins has been published by Sahni and Reedijk [8] ... behavior and practical analytical aspects of similar resin types which may potentially be employed for trace metal preconcentration [16–20] In this paper we present an evaluation of the sorption desorption ... filled with the sorbent for deposition of the metals, followed by desorption elution and subsequent measurement by flame atomic absorption spectrometry (FAAS) In establishing the dynamic operation...
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kinetics of trace metals sorption on and desorption from soils developing predictive models
Ngày tải lên :
13/11/2014, 11:01
... Metals Sorption and Desorption on Soils 36 2.5 Methods Used to Study Kinetics of Metal Sorption and Desorption on Soils 39 2.6 Modeling Kinetics of Metals Sorption and Desorption ... (mainly Cu and Zn) sorption and desorption on soil particles The effects of soil properties and solution chemistry on kinetics of trace metals sorption and desorption were studied Key soil and solution ... Kinetics of Cu sorption and desorption on the Matapeake soils at pH 5.5 with influent [Cu] = 0.85 mg/L Line is the kinetics model fitting 229 Figure 6.4 Kinetics of Cu sorption and desorption on...
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Adsorption and desorption of cd
Ngày tải lên :
15/03/2014, 23:08
... 1998 Sorption and desorption of cadmium from some New Zealand soils: effect of pH and contact time Aust J Soil Res 36, 199–216 Krishnamurti, G.S.R., Huang, P.M., Kozak, L.M., 1999 Sorption and desorption ... pure and foreign-element associated goethites Clays Clay Miner 43, 141–149 Brummer, G.W., Gerth, J., Tiller, K.G., 1988 Reaction kinetics of the adsorption and desorption of nickel, zinc and cadmium ... crytallinity of goethite: II Rates of sorption and desorption of phosphate Eur J Soil Sci 48, 87–99 Swift, R.S., McLaren, R.G., 1991 Micronutrient adsorption by soils and soil colloids In: Bolt, G.H...
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báo cáo hóa học:" Adsorption and desorption characteristics of arsenic onto ceria nanoparticles Nanoscale Researc" pptx
Ngày tải lên :
21/06/2014, 17:20
... process, and the process was favorable at high temperature The results were consistent with the adsorption isotherm results Adsorption and desorption Figure shows the adsorption and desorption ... Sorption and desorption of phenanthrene onto iron, copper, and silicon dioxide nanoparticles Langmuir 2008, 24:10929-10935 Yan XM, Shi BY, Lu JJ, Feng CH, Wang DS, Tang HX: Adsorption and desorption ... endothermic, and the process of adsorption was favored at high temperature The desorption data showed that desorption hysteresis occurred at the initial concentration studied High adsorption capacity...
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RESEARCH ON PHOSPHORUS SORPTION AND SILICATE APPLICATION TO IMPROVE PLANT AVAILABLE PHOSPHORUS CONTENTS IN RICE SOILS IN SOUTHERN VIETNAM
Ngày tải lên :
17/08/2015, 15:54
... inhibit the P sorption capacity was conducted through P sorption and desorption experiments in laboratory, rice cultural trials on field and in green house 1.4 MEANING OF SCIENCE AND PRACTICE ... STUDY - Detecting a closed inversely correlation between P adsorption and desorption, finding main soil characteristics that effect on P desorption capacity of rice soil in southern Vietnam - Demonstrating ... Phosphorus sorption capacities of soils were calculated by using Langmuir and Freundlich equations 9 3.2.2 Studying phosphorus desorption capacities of soils 3.2.2.1 Studying the phosphorus desorption...
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Tài liệu Nonequilibrium transport and sorption of organic chemicals during aquifer remediation doc
Ngày tải lên :
14/02/2014, 08:20
... subscripts / and s refer to fast moving and slow moving liquid regions respectively, and JHs is the exchange between the fast moving and slow moving liquid phase: Nonequilibrium transport and sorption ... groundwater table at -1.8m -14 m silty sand and clay -30 m fine and coarse sand -150 m below surface Fig Overview of the subsoil The extent and degree of soil and groundwater contamination have been ... Health and Environmental Protection (RIVM), Bilthoven, The Netherlands Leistra, M (1977) A model for the transport of pesticides in soil with diffusion controlled rates of adsorption and desorption...
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Đề tài " Diophantine approximation on planar curves and the distribution of rational points " pptx
Ngày tải lên :
15/03/2014, 09:20
... lemmas are easily established and relatively standard, see [19], [25] and [6, §7] A.1.2 Positive and full measure sets Proposition Let E ⊂ R be a measurable set and let I0 ⊂ R be an interval ... VICTOR BERESNEVICH, DETTA DICKINSON, AND SANJU VELANI Step In view of Steps and above, the function ψ satisfies (4) and Corollary is applicable to ψ By (27) and the fact that ψ is decreasing, we ... Theorems and Corollary Let ψ and f be as in Theorem and C := {(x, f (x)) : x ∈ I0 } With reference to the ubiquitous framework of §3.2, set (11) β : J := Z2 × N → N : (p, q) → q , Φ : t → t−1 ψ(t) and...
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Competitive sorption of cadmium and lead in acid soils of central spain
Ngày tải lên :
15/03/2014, 23:22
... experiments (Kuo and Lotse, 1974; Aharoni and Sparks, 1991; Sparks, 1995) as: St ¼ kt v are constants and v is positive and less than unity (Sparks and Jardine, 1984; Chien and Clayton, 1980) ... accounting for the 52% and 69% of the ECEC, respectively Soils S1 and S3 had the lowest ECEC, pHw and clay content while S2 and S4 were less acidic and showed higher ECEC and clay content Soil ... R2 and low values of SE (Fig 1, Table 3) Langmuir parameters Q and k were not correlated Soils S1 and S3 had lower metal sorption capacity than S2 and S4 in terms of the estimated maximum sorption...
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Báo cáo toán học: "Codes from cubic curves and their extensions" potx
Ngày tải lên :
07/08/2014, 15:23
... fixed positions i and j correspond to the intersection of two planes, and so on Hence, two code words w1 and w2 corresponding to the affine points P and Q will have t common entries if and only if the ... q) and let E = Σ \ Π The code C can be extended if and only if there exists a partition {X1 , X2 , , Xq } of E where each Xi is a transversal set of T Geometry and Combinatorics of Cubic Curves ... focus is on the codes associated with cubic curves and results analogous to those in [3] are obtained Our methods involve the theory of R´dei blocking sets and the use of e the Bruen-Silverman model...
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Báo cáo lâm nghiệp: "Modelling dominant height growth and site index curves for rebollo oak (Quercus pyrenaica Willd.)" pptx
Ngày tải lên :
07/08/2014, 16:20
... compatible height and site index models for young and mature stands within an ecosystem-based management framework, in: Empirical and process based models for forest tree and stand growth simulation, ... and 116 33.5529 122 38.6613 0.1399 0.4069 34.7668 0.1085 1, and 62 18.0334 0.6994 68 18.5457 0.3699 0.2935 1, and 106 1, and 121 28.0137 112 28.4247 0.4328 0.2592 33.4846 127 33.9647 0.3964 and ... 33.4846 127 33.9647 0.3964 and 0.2892 48 13.8231 51 13.9970 0.7135 0.2013 and 92 23.5817 95 23.8034 0.6322 0.2883 and 102 and and and 30.9434 0.0568 1.8549∗ 36 8.8404 0.3303 0.6430 46 14.1246 0.6651...
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![Báo cáo khoa học: "Site-specific height curves for white spruce (Picea glauca [Moench] Voss) stands based on stem analysis and site classification" potx](https://media.store123doc.com/images/document/2014_08/09/medium_GNcfF7ug1V.jpg)
Báo cáo khoa học: "Site-specific height curves for white spruce (Picea glauca [Moench] Voss) stands based on stem analysis and site classification" potx
Ngày tải lên :
08/08/2014, 19:21
... presently limited by the resolution (time and spatial scale) and the nature of available climatic and edaphic data (Nautiyal and Cuoto, 1984; Rayner and Turner, 1990) Consequently, alternative ... C/N (Wang, 1993) Based on the SMR, SAR and SNR determined for each stand, study stands were stratified into site groups: C, F, G, I, J, K and L as delineated and labelled by Wang (1993) Each site ... the natural logarithm, and , 12 b b and b are parameters to be estimated for each stand Within-plot standard errors of estimates for model [1] averaged 0.79 m, with a standard deviation of 0.28...
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Báo cáo khoa học: "Use of pressure volume curves in water relation analysis on woody shoots: influence of rehydration and comparison of four European oak species" ppsx
Ngày tải lên :
09/08/2014, 03:24
... 0.50, 0.54 and 0.26 MPa for Quercus alba, Q macrocarpa and Q stellata respectively (Parker and Pallardy, 1988b), 0.60, 0.23 and 0.13 MPa for Q acutissima, Q alba and Q stellata (Ki and Pallardy, ... (-1.47 and -2.04 MPa, Parker and Pallardy, 1985), Juglans regia (-1.3 and -1.9 MPa, Dreyer, 1984), Acer sachharinum (-1.4 and -2.3 MPa, Cheung et al, 1975) Stand grown trees of Q petraea and the ... Π and Ψ than those of most species Similar low values have been observed in Malus domestica (-2.2 and -3.3 MPa, Fanjul and Rosher, 1984) and Olea oleaster (-2.0 and -2.9 MPa, Lo Gullo and...
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Báo cáo lâm nghiệp: "The influence of acid mist upon transpiration, shoot water potential and pressure—volume curves of red spruce seedlings" pot
Ngày tải lên :
09/08/2014, 04:20
... Day and night transpiration rates were tree1 s’ 1.19 ± 0.06 mmol (day) and 0.54 ± 0.06 mmol (night) for tree1 s’ whole trees treated with pH 2.5 mist, tree1 s’ and 1.5 ± 0.14 mmol (day) and 0.68 ... treatment pH Fig shows changes in e with turgor v (top) and RWC (bottom) for pH 2.5, 3.0 and pH 5.0 treated branches -, increased linearly with turgor and increased curvilinearly with RWC pH 5.0 treated ... Forests, VVetlands and Ac Ecosystems, (Hutchricultural f inson T.C & Meema K.M., eds.), NATO ASI Series, Springer-’Verlag, Berlin, pp 83-99 Kim J.M & Lee-3tadelmann O.Y (1984) Water relations and cell...
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báo cáo khoa học: "Growth curves of highly inbred lines of fowl and their F hybrids 1 HYÁNEK R. ŠILER Milena VILHELMOVÁ" ppsx
Ngày tải lên :
09/08/2014, 22:23
... figures 4-7 and the parameters of the curves are summarized in tables 5-8 The shape parameter (n) and the y ratio show a wide range of values for individual curves (n =-0.3 /A * to 0.8 and y 0.279 ... regard to demand on the same hatching, the numbers of birds in inbred lines and hybrids were low (C - 55, I - 23, W - 26 and M - 25) In total, the F hybrids were represented by 79 cocks and 77 hens ... of fowl and their F, hybrids in terms of the Richards function and to analyze the differences between estimated growth curve values and observed weights The genetic aspects of growth and live...
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Báo cáo y học: "Circadian phase response curves to light in older and young women and me" pot
Ngày tải lên :
10/08/2014, 09:20
... years (A and C), and one female participant, age 28 years (B and D) Panels A and B plot aMT6s (ng/h) in blue longitudinally during the two segments of continuous collection used for baseline and post-treatment ... C and D by replotting both baseline (1, black line) and post-stimulus curves (2, red line) on a noon-to-noon abscissa In A and C, light given 8–11 PM, elicited phase delays of -5.0, -3.3, and ... recruited and screened participants, supervised technicians and the day by day data collection, assembled the data base, and contributed to data analyses and writing KMR took part in grant and study...
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