liquid solid phase equilibria of paraffinic systems by dsc measurements

... eigenvalue of B Proof As in the proof of Theorem 2, a and b are equivalent For < μ < 1, denote μI − μ B by B μ Suppose now that a holds Let λ be an eigenvalue of B Then μ 1− μ λ is an eigenvalue of ... The index of the eigenvalue of Q−1 A is the R Q−1 A −1 index of eigenvalue of B I − Q A Thus by Lemma 5, Cn Q−1 R A ⊕ N A For every vector v ∈ Cn , let v r and v n denote the component of v in ... eigenvalue of B μ By Theorem |μ − μ λ| ≤ for every < μ < and hence |λ| ≤ If is an eigenvalue of B, then it is also an eigenvalue of B μ By Theorem 2, the index of 1, as an eigenvalue of B μ , is Since...

Ngày tải lên: 21/06/2014, 20:20

... Solution -Phase Synthesis of Substituted Amines by N-Alkylation with %-Halocarbonyl CNLONSMDQZZZZZZZZZZZZZZZZZZZZ'''13 1.3 Examples of Solid- Phase Synthesis of Substituted AminesZZZZZZ'ZZZ.18 1.3.1 Solid- Phase ... formation of the by- product meso compound of 60 by attack of bromide ion formed during the reaction on the unreacted %-bromoester to give the other enantiomer of 59 The meso by- product was separated by ... capitalizes on solid- phase methodology to minimize dialkylation of the resin-bound substrate On the other hand, it cannot take advantage of the variety of resin-bound amines accessible by solid- phase...

Ngày tải lên: 24/08/2014, 13:46

... Liquid chromatography LLE Liquid- liquid extraction LOD Limit of detection LOQ Limit of quantification muSPE Micro solid phase extraction using mixed matrix membrane μ-SPE Membrane bag micro solid ... classical liquid liquid extraction (LLE) Microextraction techniques are characterized by the extraction of analytes from a given donor phase, into a minuscule volume of a selected acceptor phase ... permeation of bulk donor phase into membrane bags during μ-SPE, resembled aspects of the swelling of polymeric hydrogels by water In polymeric hydrogels, water-uptake is induced by the presence of polar...

Ngày tải lên: 10/09/2015, 09:12

... xiv LIST OF PUBLICATIONS CHAPTER 1: INTRODUCTION 1.1 Solid- phase synthesis (SPS) 1.1.1 Solid supports 1.1.2 Linkers 1.1.3 Reaction monitoring in solid- phase synthesis 13 1.1.4 Solid- phase synthetic ... eventually it is cleaved from the solid support (Figure 1.1) Figure1.1 Illustration of a solid- phase synthesis This concept of solid- phase synthesis was first raised by R B Merrifield in 1963 for ... TRACELESS SOLID- PHASE SYNTHESIS OF 1,7-DISUBSTITUTED PURINES 77 3.1 Introduction 77 3.2 Outline of our strategy 78 3.3 Results and discussions 79 3.3.1 Solution -phase synthesis study 79 3.3.2 Solid- phase...

Ngày tải lên: 15/09/2015, 17:09

... the type of catalyst This could be explained by the effect of the catalyst on the barrier energy to the nucleation of a new step at the growth front of the nanowires (i.e., the liquid/ solid interfaces ... flow rate of 20 sccm The VLS process consists of four main steps: (1) mass-transport in the gas phase; (2) chemical reaction on the vapour liquid interface; (3) diffusion in the liquid phase; and ... rate of incorporation of Si from the liquid phase to the lattice The present results suggest that Pt is a good candidate for the VLS growth of Si nanowires However, the growth temperature of the...

Ngày tải lên: 16/03/2014, 15:05

... acetone at a concentration of 500 µg/mL of each This solution is used in the preparation of the calibration solutions Dilute a portion of this solution by 10 to a concentration of 50 µg/mL and use this ... this extract is concentrated further by evaporation of some of the solvent The sample components are separated, identified, and measured by injecting an aliquot of the concentrated extract into a ... obtained by the measurement of calibration standards under the same conditions used for samples 525.2-5 The concentration of each identified component is measured by relating the MS response of the...

Ngày tải lên: 22/03/2014, 14:20

... effects of pH of the aqueous Table Because the flow rates of sample solution and eluent solutions are two important parameters for the quantitative retention of analytes on the solid phase extraction ... determination of trace amount of nickel in water and biological samples by dispersive liquid liquid microextraction J Chin Chem Soc 57, 1035–1041 Soleimani, M., Khani, A., 2010 Removal and recovery of UO2(2+) ... All other works were done at pH 6.5 by using phosphate buffer 3.2 Amounts of ligand The influences of amounts of 1-phenyl-1H-tetrazole-5-thiol on the retentions of Cd(II) and Pb(II) on Diaion SP-207...

Ngày tải lên: 02/09/2015, 13:45

... Figure 1.2 Evolution of number of transistors packed into each of Intel’s new generation of microprocessors, describing Moore’s law [2] .3 Figure 1.3 Cost of fabrication of transistors, DRAM ... leakage profile of the various diodes fabricated The change in the slope of the leakage profile at a bias larger than 2V is due to the onset of GIDL current 83 Figure 5.8 XTEM images of the ... half that of the influenza virus or about 2000 times smaller than a strain of human hair For a sense of the physical size of the transistor, Fig 1.7 shows a micrograph image of a strand of hair...

Ngày tải lên: 12/09/2015, 09:28

... substances (EPS) of the mixed liquor were extracted by steam treatment at 105 oC for 30 minutes (Nakajima and Mishima, 2005) For the SMP

Ngày tải lên: 05/09/2013, 10:15

... (0.3048 m) off of the rear wall as shown in Figure 4, which gives an area of 2.25 ft2 (0.2090 m2) for each vent Case has a volume of 1,368 ft3 (38.74 m3) By meeting the guidelines of four air ... 2012, pp.667-686 669 1.4 Phase change material layers The addition of a phase change material (PCM) into the external wall of a building has been shown to reduce the amount of energy required to ... 97% of the time in Dublin, Ireland, and 67% percent of the time in Milan, Italy [7] In the case of conventional dehumidification systems with air-conditioning, dehumidification is accomplished by...

Ngày tải lên: 05/09/2013, 15:28

... NADPH-cytochrome c reduction by reductase were measured using an extinction coefficient of 21 mM)1Æcm)1 [27] Lipid was quantitated by measuring the 14C-radioactivity of the fractions by liquid scintillation ... activation of the CYP1A1-catalyzed oxidation of the (+)-7,8-diol was less pronounced Effects of nonbilayer lipids on the metabolic rates of epoxidation We analyzed the effects of a typical member of ... (B) of (–)- and (+)-7,8-diol by human CYP1A1 in reconstituted vesicles Vesicles consisting of pure Ole2PtdCho, or of a lipid mixture of Ole2PtdCho and the particular lipid in a weight ratio of...

Ngày tải lên: 08/03/2014, 10:20

... formation of a titanium oxide (TiOx ) phase by removal of oxygen from the silica layer [9] The reduction of TiN seems to be a critical factor in the growth kinetics of a-SiONWs The growth of silica ... decomposition of TiN, as a result, it limits the growth of a-SiONWs nanowires by the mechanism Oxygen seems Fig A schematic diagram showing a growth mechanism of silica nanowires by the solid solid transformation ... nanowires were synthesized by solid state diffusion of silicon from the silica films The growth mechanism could be explained by direct solid to solid phase transformation, so called, the SS mechanism...

Ngày tải lên: 16/03/2014, 15:04

... consists of nanoparticles of a few Fig Schematic depiction of SiNW growth by the SLS mechanism: Ža deposition of a thin layer of Ni on the Si Ž111 substrate; Žb formation of the Si–Ni eutectic liquid ... eutectic liquid alloy droplets Because of the relatively high solubility of Si in Si Ni eutectic alloy, more Si atoms will diffuse through the solid Žsubstrate liquid interface into the liquid phase ... of Si atoms through the substrate liquid ŽSL interface into the liquid droplets, and growth of SiNWs through the liquid wire ŽLS interface; Žd final state of SiNW growth The smooth surface of...

Ngày tải lên: 16/03/2014, 15:05

... as Si source via a solid liquid solid mechanism by heating They have uniform length and diameter The growth is explained by solid liquid solid model This synthesis method of oriented SiNWs is ... liquid alloy droplets Because of the relatively high solubility of Si in Si2 Ni eutectic alloy, more Si atoms will di use through the solid (the substrate) liquid interface into the liquid- phase ... (a) deposition of a thin layer of Ni on the Si (111) substrate; (b) formation of the Si–Ni eutectic liquid droplets; (c) the continuous di usion of Si atoms through the substrate liquid (S–L) interface;...

Ngày tải lên: 16/03/2014, 15:14

... pH was set to 4.1 by adding small amounts of HCl The samples used in spin-label experiments were prepared by adding either small amounts of aqueous MnCl2, or small amounts of 5-doxyl or 12-doxyl-labeled ... structure of penetratin The lines represent the average size of the head-group region of the bilayer Only effects that result in a remaining amplitude of

Ngày tải lên: 23/03/2014, 18:20

... ratio of fibre and matrix phase shear moduli of fibre and matrix phase Poisson’s ratio of fibre and matrix phase plane strain bulk modulus of composite material of aligned fibres shear modulus of ... and particle phase K , K : bulk moduli of matrix and particle phase G2 = µ2 : shear modulus of matrix phase ξ3 : volume fraction of particle phase α2 : thermal expansion coefficient of the effective ... coefficients of fibre and matrix phase k1 , k2 : plane strain bulk moduli of fibre and matrix phase K1 , K : bulk moduli of fibre and matrix phase (3) N.D Duc et al / VNU Journal of Science, Mathematics...

Ngày tải lên: 28/03/2014, 13:20

... derivation of phase equilibria with solid phases To so either simultaneous investigation of two equations of state (for liquid- gas and for solid phases) should be considered or the usage of the topological ... adsorption measurements; Rad.tr – method using radioactive tracers for phase equilibria studies Types of phase equilibria: Soly – solid solubility equilibria, heterogeneous equilibria with solid phase( s) ... coordinates of molecular parameters of each model) the regions of different types of fluid phase diagrams generated from the equations of state Due to the absence of a general liquid- gas -solid equation of...

Ngày tải lên: 01/04/2014, 11:22

Ngày tải lên: 02/04/2014, 16:19

... solid surface and the tangent line of liquid at the solid -liquid- vapor interface when the liquid is in a thermal equilibrium state on the solid The equilibrium state of the contact angle which represents ... between solid and vapor, γ sl is tension between solid and liquid, and γ lv is tension between liquid and vapor In Equation 1, when S ≥ (γ sl + γ lv ≤ γ sv ) , the solid is wetted by the liquid ... then the solid prefers the vapor to the liquid; however, since the liquid is heavier than the vapor, the liquid is placed under the vapor, and then, the solid is wetted partially by the liquid...

Ngày tải lên: 20/06/2014, 23:20

... diameter of 150 nm were taken from a colloidal solution Polydisperse metal seeds for VLS growth of the nanowires were formed by evaporation and subsequent annealing of a thin Au layer of nominally ... Page of 75 n-GaAs NW doping inhomogenity, i.e a realistic precision of ± 5% in the measurement of the wire diameter and the wire length, respectively, may sum up to a variation of up to ± 15% of ... total pressure of 50 mbar, using Trimethylgallium (TMGa) and Tertiarybutylarsine (TBAs) as precursors with a constant V/III ratio of 2.5 The total gas flow of 3.4 l/min was provided by N2 as carrier...

Ngày tải lên: 21/06/2014, 11:20