viscosity dielectric constant dipole moment and surface tension of selected inorganic substances

Modeling the effect of liquid viscosity and surface tension on bubble formation

Ngày tải lên : 26/11/2015, 12:39

... MODELING THE EFFECT OF LIQUID VISCOSITY AND SURFACE TENSION ON BUBBLE FORMATION ZHANG YALI (B ENG, HUT) A THESIS SUBMITTED FOR THE DEGREE OF MASTER OF ENGINEERING DEPARTMENT OF CHEMICAL AND BIOMOLECULAR ... flow rates the surface tension force was greater than the time rate of change of the momentum of the gas entering the bubble, while at higher rates of gas flow the order of magnitude of the two forces ... influence of both liquid viscosity and surface tension, and explained the discrepancies in the literature data for constant flow conditions Two stages of bubble formation namely the expansion stage and...

97
324
0

Báo cáo khoa học: Physical properties and surface activity of surfactant-like membranes containing the cationic and hydrophobic peptide KL4 potx

Ngày tải lên : 30/03/2014, 11:20

... of the structural and functional properties of the native proteins and thus may offer a useful basis for the design of agents for therapeutic intervention [7] Studies of different fragments and ... Therefore, the objectives of this study were to analyze (a) the effect of KL4 on the physical properties of membranes, in the absence and presence of Ca2+, using ﬂuorescence anisotropy of 1,6-diphenyl-1,3,5-hexatriene ... (DSC) and ﬂuorescence confocal microscopy of giant unilamellar vesicles (GUVs), (b) the effect of the lipid composition on KL4 structure, in the absence and presence of Ca2+, using CD and (c)...

13
329
0

EXTENT OF CANALIZATION AND SURFACE FITTING OF FIELDS docx

Ngày tải lên : 29/06/2014, 15:20

... canalization and delta and other lowland reclamation work, or of the extent of surface fitting of fields which have been effected in China, Korea and Japan through the many centuries, and which are still ... illustrated in Figs 51 and 52 have been built between 1886 and 1901, both on the extensions of Chungming island and the newly formed main land to the north, as is shown by comparison of Stieler's atlas, ... appointed "The Great" Yu "Superintendent of Works" and entrusted him with the work of draining off the waters of disastrous floods and of canalizing the rivers, and he devoted thirteen years to this...

16
244
0

Báo cáo khoa học: "Evaporation and surface conductance of three temperate forests in the Netherlands" pdf

Ngày tải lên : 09/08/2014, 04:20

... since the publication of a series of model simulations of water use of typical (model) forest stands for the Netherlands [8], forests on the high sandy soils in the Netherlands have been seen as ... analyse the differences and similarities in evaporation and surface conductance of three temperate forests in the Netherlands Evaporation rates and surface conductances of the forests will be ... subject of another paper SITE DESCRIPTION AND MEASUREMENTS The sites are a site of Scots pine on a high sandy soil in the centre of the Nether- lands, a larch site on a loamy soil in the North, and...

16
355
0

Electrical, dielectric and magnetocaloric properties of selected a and b site substituted manganites

Ngày tải lên : 10/09/2015, 15:52

... 150 Fig.4.24: Temperature dependence of dielectric constant (ε') (left side) and dielectric loss (ε") (right side) for x = 0.3, 0.5 and (top to bottom) at selected frequencies (f = 100 kHz-5 MHz) ... exhibited by them and their strong correlation between charge, spin and lattice degrees of freedom In this thesis, I have investigated electrical, magnetotransport (dc and ac), dielectric and magnetocaloric ... positive and negative values of MCE are observed around TCO and TC for the undoped compound and only negative value of MCE is observed for doped compositions The ac magnetotransport properties of the...

242
417
0

Genetic engineering and surface modification of baculovirus derived vectors for improved gene delivery to the central nervous system

Ngày tải lên : 14/09/2015, 11:28

... UNIVERSITY OF SINGAPORE AND INSTITUTE OF BIOENGINEERING AND NANOTECHNOLOGY July 2006 ACKNOWLEDGMENTS First and foremost, I wish to express my appreciation to my supervisor, Dr Wang Shu, Associate Professor, ... Professor, Department of Biological Science, National University of Singapore; Group Leader, Institute of Bioengineering and Nanotechnology, for his continuous support and patient guidance And to my co-supervisors, ... form of PEI has yielded significantly greater success in terms of cell transfection, and is therefore the standard form of PEI for gene delivery Highly branched polymers such as the 25 kDa and...

172
363
0

Báo cáo lâm nghiệp: "Evaluation of the growth and health status of selected clone mixtures in comparison with ordinary planting stock" docx

Ngày tải lên : 07/08/2014, 03:22

... RESULTS Comparison of the growth of parent trees and clones of the 1st and 2nd generation Research plots were evaluated in the intervals of several years So data acquired in plantations of different ... Journal of Forest Research, 22: 335–361 Jonsson B (1999): Stand establishment and early growth of planted Pinus sylvestris and Picea abies related to microsite conditions Scandinavian Journal of Forest ... 1995) Karlsson and Högberg (1998) and Karlsson (2000) stated that the height growth of clones by site interaction often changed with the age of clone plantation The selection of clones J FOR...

9
298
0

Báo cáo lâm nghiệp: "Density of juvenile and mature wood of selected coniferous species" pdf

Ngày tải lên : 07/08/2014, 10:21

... values of JW and MW density at zero moisture content (α = 0.05) Low values of the coefficients of variation show again that the variability of density values is small The influence of ring width and ... diversification of growth conditions in the later stages of stand growth, especially as concerns the light and space competition of crowns and root systems As the trees grow larger, the stand becomes ... wood is a part of each stem and it is necessary to be aware of this fact The lower density of juvenile wood, the easier way of its processing and the consequent lower energy demands can be an...

8
458
0

Báo cáo lâm nghiệp: "End-use related physical and mechanical properties of selected fast-growing poplar hybrids (Populus trichocarpa × P. deltoides)" potx

Ngày tải lên : 07/08/2014, 16:21

... amount of smaller individual tension wood areas (85% of the tension wood zones < 6.25%) ‘Hoogvorst’ and ‘Hazendans’ (respectively 55% and 54% < 6.25%) have more tension wood zones of larger surface ... ‘Hazendans’ and four ‘Hoogvorst’ The trees had all grown on sandy to loamy sand soils with a poor drainage, in adjacent stands with a planting distance of × m Trees were selected in respect of their ... stability, modulus of elasticity (MOE) and modulus of rupture (MOR) have been quantiﬁed at three diﬀerent heights For evaluating the amounts of heartwood and tension wood, density and the shrinkage...

10
382
0

Electrical, magnetic and magnetocaloric properties of selected b site substituted manganites

Ngày tải lên : 09/09/2015, 17:53

... Scope and Motivation of the present work Currently there exists more of electrical transport and very few magnetization studies on the effect of Mn-site doping in various CO compounds and some of ... measure of the magnetic moment of the sample The sample is suspended with the help of a non-magnetic rod, which vibrates over an amplitude of mm at a frequency of f = 40 Hz The sensitivity of our ... at selected temperatures for (a) x = 0.05, (b) 0.1 and (c) 0.2 Fig 4.28 The temperature dependence of change in magnetic entropy (-Sm) of (a) x = 0.05, (b) 0.1 and (c) 0.2 for field change of...

168
599
0

Electrical, magnetic and thermal properties of selected perovskite oxides

Ngày tải lên : 10/09/2015, 09:11

... [(a) and (b)] and x= 0.2 [(c) and (d)] compounds 105 Figure 3.22: Temperature dependence of  and ’’ under zero field for selected frequencies (f = 0.1-5 MHz) for x= 0.4 [(a) and (b)] and x= ... (b)] and x= 0.5 [(c) and (d)] and x= 0.6 [(e) and (f)] compounds 106 Figure 3.23: Temperature dependence of ′ and ′′ at f = 100 kHz [(a) and (b)] and f = MHz [(c) and (d)] under 0H ... Temperature dependence of ′ and ′′ at f = 200 kHz [(a) and (b)] MHz [(c) and (d)] and MHz [(e) and (f)] under 0H = 0-1 kG for x = 0.6 .109 Figure 3.25: Temperature dependence of ac (a) magnetoresistance...

228
496
0

Accurate and sensitive determination of selected contaminants from food packaging materials

Ngày tải lên : 14/09/2015, 08:39

... Effect of the oily food matrix on the migration profile of 67 bisphenolic analytes in solid and liquid food portions 3.7.2 Effect of the aqueous food matrix on the migration 69 profile of bisphenolic ... (BADGE-2H2O and BFDGE2H2O) from the canned coffee sample 106 Figure 7.1 Chemical structures of ITX-d7 and ITX (2- and 4- isomers) 127 Figure 7.2 Product ion scan mass spectra of 500 μg/L ITX standard ... epichlorohydrin and results in the formation of a new oxirane ring This leads to the loss of the chloride anion, and results in the formation of the monoglycidyl ether of BPA (MGEBPA) Subsequent reactions of...

209
208
1

Báo cáo hóa học: "Effect of the carbon nanotube surface characteristics on the conductivity and dielectric constant of carbon nanotube/poly(vinylidene fluoride) composites" doc

Ngày tải lên : 21/06/2014, 04:20

... concentration and shifts the percolation threshold to higher concentrations Table BET surface areas obtained by adsorption of N2 at -196°C and amounts of CO2 and CO obtained by integration of areas ... frequency behavior of the dielectric permittivity is similar to the one obtained for the pure polymer, except for an increase of the low frequency dielectric constant and dielectric loss (not ... The reduction of the electrical surface conductivity of the CNT due to the oxidation process, together with an increase of the surface area and defect formation, is at the origin of the observed...

5
353
0

báo cáo hóa học:" Research Article Variable Viscosity on Magnetohydrodynamic Fluid Flow and Heat Transfer over an Unsteady Stretching Surface with Hall Effect" pot

Ngày tải lên : 21/06/2014, 11:20

... and B0 is constant We assume the fluid viscosity to vary as an exponential function of temperature in the nondimensional form μ μ∞ e−β1 θ , where μ∞ is the constant value of the coefficient of viscosity ... comprised the balance laws of mass, linear momentum, and energy were modified to include the Hartmann and Hall effects of magnetohydrodynamics, and variable viscosity of the fluid was solved numerically ... stretching surface with variable surface heat flux Chen and Char presented an exact solution of heat transfer for a stretching surface with variable heat flux P S Gupta and A S Gupta examined the heat and...

20
334
0

Modeling and characterization of high dielectric constant tunnel barriers for nanoelectronic applications

Ngày tải lên : 16/09/2015, 15:53

... SiO2 (thickness of nm and 2.3 nm from TEM) and bulk HfO2 (thickness of 2.9 nm from TEM) layers, respectively, in obtaining the simulated C-V curve, and (b) Conduction band profile of the Al/SiO2/HfO2/SiO2/n-Si ... field (b) The average distance of electrons in the subbands, z10 and z20, and the average distance of total electrons, zav, from the surface with (open symbols) and without (solid symbols) wave ... barriers are identified using the bandgap and band offsets as selection parameters The second part of the project focuses on the investigation of the charge trapping and discharge mechanisms in nanocrystal...

251
318
0

INFLUENCES OF SOLVENT DIELECTRIC CONSTANT ON pbs SURFACE

Ngày tải lên : 31/10/2015, 10:41

... DIELECTRIC CONSTANT ON P bf bS SURFACE 97 Fig The formation of surface dipole due to the surface coordination imperfection (left) and the rumpling of surface layer to optimize dipole- dipole interaction ... INFLUENCES OF SOLVENT DIELECTRIC CONSTANT ON P bf bS SURFACE 95 Table A comparison of surface rumpling δz, surface relaxation ∆ (in %), Surface core level shifts (SCLSs) ∆εs of Pb 5d and S 2p states ... increase of ionicity according to the dielectric constant (a) (b) Fig The dependence of concentrated atomic charges (a) and surface core level shifts of Pb 5d band (b) on dielectric constant...

8
318
0

Báo cáo y học: "HLA-DR regulation and the influence of GM-CSF on transcription, surface expression and shedding

Ngày tải lên : 03/11/2012, 09:57

... 0) and on days 3, 7, and 14 for PCR studies and days 0, 1, and for measurement of soluble HLA-DR Blood (7.5 ml) was collected in preservative free heparin (final concentration of 100 iu/ml) and ... percentage of cells expressing HLADR on monocytes and the density of HLA-DR was measured Immuno-fluorescent microscopy of HLA-DR in PBMC Cytospins of PBMC obtained from healthy controls and septic ... were cultured with GM-CSF at concentrations of 1ng/ml and 10ng/ml At time points 4, 6, and hours, cells were evaluated for surface expression of HLA-DR and HLA-DR mRNA production Control samples...

11
618
0

Moment and Shear, Generated by DL on the Composite Section

Ngày tải lên : 29/09/2013, 12:20

... NO BREAK NO strands break strands dist strands dist strands dist 12 15 12 15 10 2 y y 2 25 25 harp LRFD pre-stressed beam.mcd 7/1/2003 28 of 71 Middle Strand pattern Input Strand pattern at ... the tandem LRFD pre-stressed beam.mcd 7/1/2003 18 of 71 Load Combinations Combination 1: The effect of the design tandem combined with the effect of the design lane Combination 2: The effect of ... minimum of 50 ft between the lead axle of truck and the rear axle of truck 90% the design Lane The distance between 32 k axles shall be 14 ft LRFD pre-stressed beam.mcd 7/1/2003 19 of 71 Moment, ...

18
371
0

Tài liệu Working with Wireframe and Surface Design Workbench doc

Ngày tải lên : 16/12/2013, 03:15

... Parameters area in the Surface Definition dialog box Choose OK to create the cylindrical surface Creating Offset Surfaces Menu: Toolbar: Insert > Surfaces > Offset Surfaces > Offset The Offset tool is ... specify the required number of intance(s) Choose the OK button to create the offset surfaces Figure 9-17 shows a reference surface and an offset surface Figure 9-17 An offset surface Note Sometime ... the curves and support surfaces to create the blend surface and Figure 9-37 shows the resulting blend surface Figure 9-36 The curves and support surfaces Figure 9-37 The resulting blend surface...

40
434
1

Ground Water and Surface Water A Single Resource-U.S. Geological Survey Circular 1139 pot

Ngày tải lên : 06/03/2014, 15:21

... processes of ground-water and surface- water interaction The hydrologic cycle and interactions of ground water and surface water Interaction of ground water and streams Interaction of ground water and ... Circular presents an overview of current understanding of the interaction of ground water and surface water, in terms of both quantity and quality, as applied to a variety of landscapes across the Nation ... Interaction of ground water and wetlands 19 Chemical interactions of ground water and surface water 22 Evolution of water chemistry in drainage basins 22 Chemical interactions of ground water and surface...

87
652
0