the properties of gases
The properties of gases and liquids, fifth edition poling, prausnitz, o’connell
Ngày tải lên :
17/03/2014, 14:01
... engineers often require the properties of gases and liquids The chemical or process engineer, in particular, finds knowledge of physical properties of fluids essential to the design of many kinds of products, ... equipment Even the theoretical physicist must occasionally compare theory with measured properties The physical properties of every substance depend directly on the nature of the molecules of the substance ... components or of constituents of a mixture of interest The more important of these are considered in Chap The thermodynamic properties of ideal gases, such as enthalpies and Gibbs energies of formation...
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Tài liệu Báo cáo "Effect of the preparation conditions on the properties of Fe-Pt nanoparticles produced by sonoelectrodeposition " pptx
Ngày tải lên :
13/02/2014, 03:20
... et al / VNU Journal of Science, Mathematics - Physics 25 (2009) 1-7 the magnetic squareness Mr/Ms reduced with J because of the presence of the Fe3Pt Of cause, the kink in the magnetic curves ... duration toff of 0.5 s During ton, FePt nanoparticles were deposited on the surface of the electrode When the current was switched off, an ultrasound was activated to remove the nanoparticles from the ... that of Pt which is similar to the XRD result of FePt foils prepared by cold deformation [20] The Pt peaks in the as-prepared samples are broad due to the small size of the particles Using the...
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Tài liệu Báo cáo Y học: The effects of low pH on the properties of protochlorophyllide oxidoreductase and the organization of prolamellar bodies of maize (Zea mays) pot
Ngày tải lên :
22/02/2014, 04:20
... The samples were first photoconverted in the absence of excess NADPH to form the NADP+-bound enzyme The extent of the redshift following the addition of different concentrations of NADPH was then ... The two phenomena are clearly related and strongly point to the importance of changes in the surface properties of the PLB membrane The obvious candidates for the driving forces in the case of ... kinase therefore still remains unclear The main line of evidence for the existence of a PORphosphatase is the observation by Wiktorsson et al [9] of an inhibition, by NaF and ATP, of the loss of the...
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Báo cáo " Influence of cooling rate on the properties of Fe73.5Si13.5B9Nb3Au1 ribbons " docx
Ngày tải lên :
05/03/2014, 14:20
... from inside of the ribbon, so the ribbon is cooled faster Therefore, the speed of the wheel is proportional to the cooling rate It means that two concepts the speed of the wheel and the cooling ... of the wheel make the thickness of ribbons thinner and the ratio between the area and volume of the ribbons that contact with the surface of the wheel is higher This means that the wheel gets heat ... beat on the surface of the wheel, it will stretch on that a path before solidification and ejection from that and the higher speed of the wheel, the longer path The increasing speed of the wheel...
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Báo cáo Y học: Purification and biochemical characterization of some of the properties of recombinant human kynureninase pptx
Ngày tải lên :
08/03/2014, 22:20
... When the lines intersect above the x-axis then Ki < Ki¢, and when the lines intersect below the x-axis then Ki > K 0i (in both instances the lines have to intersect to the left of the y-axis) The ... possibility of the existence of two isoforms of the enzyme as discussed by Toma et al [8] The pH optimum of 8.25 is consistent with previously reported experimentally determined [6] values, and the optimum ... elucidation of the X-ray crystal structure of the protein The information obtained should provide invaluable knowledge on the active site and also pave the way for co-crystallization of enzyme–substrate...
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Báo cáo khoa học: The properties of phosphodiesterase 11A4 GAF domains are regulated by modifications in its N-terminal domain pptx
Ngày tải lên :
16/03/2014, 06:20
... with the expression of PDE5 and PDE11 in the transitional zone of the prostate, these PDE isoforms might also have a role in regulating the proliferation of glandular epithelial tissue; PDE5 ... Here we deal with PDE11A4, a splice variant of the most recently discovered PDE family [13–16] The four PDE11 isoforms differ in terms of the length of their N-terminal domains Only PDE11A4 contains ... stimulation depends on the presence of the hPDE11A4 N-terminus because a construct in which the N-terminus is replaced by that of the cyaB1 AC, is not stimulated [12] In another study with the PDE5 tandem...
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Báo cáo " Effects of the conditions of the microemulsion preparation on the properties of Fe3O4 nanoparticles " pot
Ngày tải lên :
28/03/2014, 10:20
... layer of surfactant by coating another layer of SDS on the OA-coated NPs The hydrocarbon chain of SDS tended inward to the hydrocarbon chain of OA and gave the particle a hydrophilic surface These ... where λ is the wave length of the X-ray, θ is the reflection angle, and B is the full width at half maximum of the peak The particle diameter obtained from that for all samples was in the range ... discussion The mechanism of formation of particles was understood as a short single burst of nucleation occurred when the concentration of constituent species reached critical supersaturation Then, the...
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properties of gases and liquids
Ngày tải lên :
01/04/2014, 10:10
... measured properties The physical properties of every substance depend directly on the nature of the molecules of the substance Therefore, the ultimate generalization of physical properties of fluids ... are characteristic of single pure components or of constituents of a mixture of interest The more important of these are considered in Chap The thermodynamic properties of ideal gases, such as enthalpies ... Conductivities of Gases / 10.18 Effect of Pressure on the Thermal Conductivities of Gases / 10.18 Thermal Conductivities of Low-Pressure Gas Mixtures / 10.29 Thermal Conductivities of Gas Mixtures...
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the properties of solvents by yizhak marcus (wiley)
Ngày tải lên :
09/05/2014, 17:07
... Physical Properties of Solvents Página de 67 The Liquid Range of Solvents 68 The P-V-T Properties of Solvents 79 Vaporization Properties of Solvents 81 The Heat Capacity of Solvents 85 The Molecular ... permutations of the elements of the name or the Chemical Abstracts name are used as synonyms In a few cases, Tables and text in other sections of the book refer to these synonyms rather than to the names ... applications There are three aspects of the question of solvent purity that have to be considered: the specification of the purity of the given solvent, its further purification, if necessary, and the...
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influence of DC magnetron sputtering parameters on the properties of amorphous indium zinc oxide thin film y s jung
Ngày tải lên :
24/05/2014, 13:53
... confirms the XRD results The reason of the small height of the peak seems to be that the IZO thin film was as thin as mm, whereas the thickness of the wafer was as large as 450 mm The change of surface ... than the change of n values The differences of n values in UV or IR range may be due to the variation of dielectric functions of the films depending upon the deposition parameters The change of ... impurities might overlap the bottom of the conduction band, thus the Hall mobility could be enhanced by the addition of Zn to In2O3 w13x The Hall measurement results of the IZO samples prepared...
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Báo cáo hóa học: " Influence of Landau level mixing on the properties of elementary excitations in graphene in strong magnetic field" docx
Ngày tải lên :
22/06/2014, 00:20
... eigenvalues of the full Hamiltonian of relative motion ′ H ′ = H0 + V ′ in the basis of the bare magnetoexcitonic states (11) As discussed in the Introduction, a relative strength of the Coulomb ... at rs = (Figure 2c,f) Since convergency of the inverse-square-root function is very slow, even the mixing of rather large (of the order of tens) number of Landau levels is not sufficient to obtain ... manner of Equation (21) in the studies [20, 39] Other authors [21, 24, 34] took into account several Landau levels, and the others [35–38] performed full summation in the framework of the random...
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Research report: "To study the effect of substituents on the properties of aniline by the method of approximate quantum AM1" pps
Ngày tải lên :
23/07/2014, 13:21
... Correlation of the dipole moment with the Hammett constants of the substituents It is evident from the table II that electron-donating substituents on the phenyl ring increase the pKa of anilines ... substituents enhance planarity of the aniline framework, thereby shortening d(CN) The accompanying loss of electron density from the amino nitrogen atom decreases the pKa of the amino group Conversely, ... substituents The variations of the three properties are closely tied together Hammett constants which used as regression indicator to investigate the change of properties yield rather good correlations...
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Báo cáo lâm nghiệp: " A contribution to the properties of combined plywood materials" ppsx
Ngày tải lên :
07/08/2014, 04:20
... etc From the aspect of the indicated use bending strength and modulus of elasticity in bending are important properties On the basis of tests of the properties and comparing properties of Multiplex ... instead of spruce veneers in the whole construction of plywoods The density of plywoods significantly affects the capacity of the material to dampen noise To achieve good sound-proof properties ... beech veneers in the whole construction Determination of sound-proof properties will be the subject of next research The quality of gluing was satisfactory, the disturbance of test specimens...
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Báo cáo vật lý: "The Effect of Triethylene Diamine on the Properties of Waste Paper Foam Composites" ppsx
Ngày tải lên :
07/08/2014, 14:20
... demonstrates the effect of filler content of the PS foam with and without the presence of the catalyst on the resulting compressive strength, and Tables 2, and present the chemical composition of the ... the top of the specimen so that the applied load in the test is its own weight and the dial reading indicates how far the probe has been pushed back into the durometer body by the stiffness of ... form the biuret compound.3 Table shows that of the three types of waste paper, the ONP foam with the catalyst has the highest hardness value, followed by the OWP and PS foams The Effect of Triethylene...
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Báo cáo lâm nghiệp: "Study of the properties of thirteen tropical wood species to improve the prediction of cutting forces in mode B" pptx
Ngày tải lên :
08/08/2014, 01:22
... Generally, the crack propagation in the wood cutting process influences either the quality of the chip in veneer cutting, or the quality of the residual surface in other cases The theory of fracture ... analysis of the wood cutting process, thesis of the dept of wood tech., School of natural resources, Univ of Michigan, Ann Arbor., 1961 [28] McKenzie W.M., The basic wood cutting process, Proc of the ... improvement of the coefficient of determination and a reduction of 60% of errors sum of squares (SCE, Tab VII of the variance analysis) However, to precisely compare the coefficient of determination...
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báo cáo khoa học: " The HPB-AML-I cell line possesses the properties of mesenchymal stem cells" ppt
Ngày tải lên :
10/08/2014, 10:20
... establishment of the cell line Nevertheless, the MSC-like properties of HPB-AML-I, as shown in this study, suggest the possibility that the first genetic event might have occurred at the stage of MSC ... consequence of the secretion of humoral factors by neoplastic cells or the direct interaction with them It is therefore very interesting that HPB-AML-I, regardless of its HSC or MSC origin, maintains the ... characteristic of leukemic cells were not observed in the bone marrow MSCs of those cases [11] Unfortunately, we could not obtain the karyotype of the original leukemic cells Therefore, the complex...
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Improving the properties of pharmaceutical powders using supercritical anti solvent processing
Ngày tải lên :
09/09/2015, 10:08
... decreases the solvent power and the temperature of the fluid and causing the solute to precipitate as microparticles [143] The decrease in the solvent power of the SCF due to the depressurization is of ... thus, the absorption is governed by kinetic factors instead of thermodynamic properties The dissolution rate is the amount of active substance that leaves the surface of drug and dissolved into the ... component like water The extent of moisture uptake depends upon factors like hygroscopicity of the drug and/or carrier, the concentration of the active substance in the drug product and the storage temperature...
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Tailoring the properties of glassy polymeric membranes for energy development
Ngày tải lên :
09/09/2015, 17:56
... porous or nonporous, the gas transport mechanisms vary from one to another The former is for the separation of gases on the basis of their molecular size through the small pores in the membrane matrix, ... accurately estimate the outer-layer thickness and demonstrate the existence of the multilayered structure of the dual-layer hollow fiber membranes The success in the formation of defect-free hollow ... deployed for the removal of acid gases (i.e., SO2, H2S and CO2) from the natural gas field at the moment to reduce the heating value of natural gas, prevent corrosion of pipeline and freezing of CO2...
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