nanostructures at solid liquid interface

Báo cáo khoa học: Surface density of cellobiohydrolase on crystalline celluloses A critical parameter to evaluate enzymatic kinetics at a solid–liquid interface ppt

Báo cáo khoa học: Surface density of cellobiohydrolase on crystalline celluloses A critical parameter to evaluate enzymatic kinetics at a solid–liquid interface ppt

... concentration dependence of adsorbed Cel7A was estimated at various time points of incubation Figure 3A shows the results at 120 of incubation and Fig 3B is the Scatchard plot (A-A ⁄ [F]) of the data ... patterns were obtained on a at imaging plate, R-AXIS IV++ (Rigaku Corporation, Tokyo, Japan), at room temperature using synchrotron radiation with a wavelength of 0.1 nm in beam line BL40B2 at ... it was assumed that two moles of cytochrome c is reduced by one mole of b-anomeric cellobiose Examination of the cellobiose concentration after 18 h incubation at °C indicated that further hydrolysis...

Ngày tải lên: 23/03/2014, 10:21

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Báo cáo khoa học: Protein oligomerization induced by oleic acid at the solid–liquid interface – equine lysozyme cytotoxic complexes potx

Báo cáo khoa học: Protein oligomerization induced by oleic acid at the solid–liquid interface – equine lysozyme cytotoxic complexes potx

... Sepharose matrix + Sepharose matrix Sepharose matrix + Fig 10 Schematic representation of the ELOA formation at the solid liquid interface within column chromatography (A) The Sepharose matrix is ... acidic or basic pH, heating, chemical denaturants and ligands, as well as at solid liquid interfaces [4–7] Among self-assembled protein complexes, oligomers have attracted special attention because ... multimeric a-lactalbumin (MAL), which indicates that the solid liquid interfaces of the chromatography column may mimic in vivo conditions Protein oligomerization induced by oleic acid Equine lysozyme...

Ngày tải lên: 30/03/2014, 01:20

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measurement of solid liquid interface temperature during pulsed excimer laser melting of polycrystalline silicon films

measurement of solid liquid interface temperature during pulsed excimer laser melting of polycrystalline silicon films

... a temperature gradient at the solid liquid interface is considered in calculating the interface temperature From numerical simulation,9 it is found that the temperature gradient at the interface ... K/nm at a laser fluence of 0.95 J/cm2͒ causes the measured temperature to be approximately 40 K higher than the actual interface temperature The maximum solid liquid interface temperatures at different ... the interface response function Assuming that there is a Appl Phys Lett., Vol 65, No 14, October 1994 linear relation between the interface superheating temperature and the interface velocity at...

Ngày tải lên: 06/05/2014, 08:54

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Báo cáo hóa học: " Drying nano particles solution on an oscillating tip at an air liquid interface: what we can learn, what we can do" pot

Báo cáo hóa học: " Drying nano particles solution on an oscillating tip at an air liquid interface: what we can learn, what we can do" pot

... vapour, as the air at infinity is not saturated the vapour diffuses outward Using the saturated pressure at the air liquid interface, we start with the Darcy law, from which the evaporating flow is derived: ... gradient is estimated as the ratio of the saturated vapor pressure (at the air water interface) to the shortest distance of the meniscus The shortest distance may be estimated as being at a very 123 ... more accurate structure of the flux J is found by solving an equivalent electrostatic problem, wherein the concentration /sat, respectively the saturated pressure Psat is an electrostatic potential...

Ngày tải lên: 22/06/2014, 18:20

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Crystallization of glycine at liquid liquid interface   an experimental perspective

Crystallization of glycine at liquid liquid interface an experimental perspective

... formation, can be affected by supersaturation, rate of supersaturation generation and desupersaturation, diffusivity, temperature, impurities and the reactivity of surfaces towards nucleation ... number of applications such as separation, concentration, purification and solidification Crystallization is utilized in the petrochemical industry for separation and purification of solids It is ... of volume Equation 1-2 summarizes the effects of supersaturation, temperature and interfacial tension on the nucleation rate At lower supersaturation, the interfacial tension dominates and there...

Ngày tải lên: 04/10/2015, 10:24

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Tài liệu Báo cáo khoa học: Brain angiogenesis in developmental and pathological processes: regulation, molecular and cellular communication at the neurovascular interface pdf

Tài liệu Báo cáo khoa học: Brain angiogenesis in developmental and pathological processes: regulation, molecular and cellular communication at the neurovascular interface pdf

... defects at a relatively later stage than did VEGF null mutant mice [29,30] These findings indicate that the Ang-1–Tie system may function during vessel maturation and stabilization, rather than ... formation, leukocyte infiltration and vascular hemorrhage (Fig 2) Under certain pathological conditions, cells at the neurovascular interface have protective roles while also accelerating pathologic ... angiogenic factor or a maturation factor, recent studies clearly show that Ang-1 is a prominent regulator of vascular development In addition to its role in vascular maturation, angiopoietin seems...

Ngày tải lên: 18/02/2014, 11:20

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Growth of amorphous silicon nanowires via a solid–liquid–solid mechanism

Growth of amorphous silicon nanowires via a solid–liquid–solid mechanism

... through the solid Žsubstrate liquid interface into the liquid phase Ži.e., the Ni Si droplets A second liquid solid Žnanowire interface will form when the liquid phase becomes supersaturated due ... continuous diffusion 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 ... the Si concentration in the vapor phase is negligible at the growth temperature because the specific surfacervolume ratio of bulk Si substrate is extremely low compared with that of the micro-sized...

Ngày tải lên: 16/03/2014, 15:05

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Controlled growth of oriented amorphous silicon nanowires via a solid–liquid–solid (SLS) mechanism

Controlled growth of oriented amorphous silicon nanowires via a solid–liquid–solid (SLS) mechanism

... 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 (the Ni Si2 droplets) A second liquid solid ... been grown using Si substrate 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 ... continuous di usion of Si atoms through the substrate liquid (S–L) interface; (d) ÿnal state of the SiNW growth The smooth surface of the original substrate becomes rough at the end of the SiNW...

Ngày tải lên: 16/03/2014, 15:14

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solid-liquid filtration and separation technology

solid-liquid filtration and separation technology

... Filtration Equation Constant Pressure Filtration Constant Rate Filtration Variable Pressure and Rate Filtration Effect of Pressure on Cake Filtration Constant Pressure Filtration Constant Rate ... Media Pretreatment Techniques CMcation Fjltration Sedimentation and Flotation Washing and Deliquoring Membrane Filtration FiltrationProcess Equipment and Calculations References Nomenclature 10 ... separation of particulate solids fiom liquids by filtration and associated techniques constitutes an important and often controlling stage m many industrial processes The latter generate a somewhat...

Ngày tải lên: 02/04/2014, 16:35

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Tribological studies of ultra thin films at head media interface for magnetic data storage systems

Tribological studies of ultra thin films at head media interface for magnetic data storage systems

... hybridization of a carbon atom (b) carbon atoms making a giant macromolecular array (lattice) in diamond 24 Figure 3-2 (a) sp2 hybridization of a carbon atom (b) configuration of carbon atoms ... coefficient of (a) ta-C coated AlTiC substrate without pre-treatment, (b) ta-C coated AlTiC substrate with pre-treatment, and (c) bare AlTiC substrate in ball on flat rotary wear test against ... surfaces coated with 10 nm conventional ta-C overcoat and with nm ta-C overcoat with nm TiN interlayer pretreated by C+ ions (Note that in the case of the TiN/ta-C sample, the test was terminated at...

Ngày tải lên: 09/09/2015, 10:17

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Electronic and magnetic properties of two dimensional electron gases at complex oxide interfaces for different polar systems and crystallographic orientations

Electronic and magnetic properties of two dimensional electron gases at complex oxide interfaces for different polar systems and crystallographic orientations

... fascinating because it demonstrated a novel path way to generate new properties at the interfaces that not exist in either of the bulk materials In subsequent years this LaAlO3/SrTiO3 interface ... presentation: Nature of spinorbit coupling at LAO/STO (110) interface) ICMAT-2013, Singapore (Poster presentation: Symmetry and carrier confinement effects on magnetic interactions at LAO/STO interface) ... LAO/STO interface sample prepared at 1×10-4 Torr at K and T Figure 4.9: AMR measured with various back gate voltages at K and T for the LAO/STO interface prepared at 1×10-4 Torr Figure 4.10: Schematic...

Ngày tải lên: 10/09/2015, 09:11

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Growth and patterning of nanostructures through irreversible liquid drying, self assembly, and crystallization

Growth and patterning of nanostructures through irreversible liquid drying, self assembly, and crystallization

... 1.7 schematically illustrates the evaporation of a pure water droplet and of a water droplet with colloidal suspension Upon evaporation, the initial liquid- gas interface (the solid line) at time ... extensively in the literature [66, 67], that a low supersaturation favors for the growth of 1D structures whereas a high supersaturation supports the formation of low-aspect-ratio structures such ... T is the absolute temperature (K), and S is the supersaturation ratio which is defined as III Dynamic Mass Balance of Nucleation Figure 1.2 shows the supersaturation ratio (S) and the crystal...

Ngày tải lên: 11/09/2015, 10:04

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Mass transfer across the turbulent gas liquid interface

Mass transfer across the turbulent gas liquid interface

... that the saturated concentration is strongly affected by the water temperature Nevertheless these two means were used as a self-consistent check and to demonstrate that essentially the correlation ... additional term relating to the curvature of the fluctuating interface as opposed to a flat interface, i.e ∇ h ⋅V = ∂u ′ ∂v′ + − 2w′∇ ⋅ n ∂x ∂y Mass transfer across the turbulent gas -liquid interface ... turbulent gas -liquid interface 25 Chapter Experiments in circular wind wave tunnel interface without waves, C is the bulk concentration of dissolved oxygen in water, Cs is the saturated concentration...

Ngày tải lên: 12/09/2015, 08:19

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Tài liệu Báo cáo khoa học: "Negative Polarity Licensing at the Syntax-Semantics Interface" doc

Tài liệu Báo cáo khoa học: "Negative Polarity Licensing at the Syntax-Semantics Interface" doc

... section gives an implementation of NPI licensing at the syntax-semantics interface using glue language No separate proof or interpretation apparatus is required, only modification of the relevant ... be demonstrated in the examples which follow A glue language treatment licensing of NPI Ladusaw (1979) established what is now a wellknown generalization in semantics, namely that negative polarity ... proof net further requires that sequents be in negation normal form, in which negation is applied only to atomic terms Moving the negations inward (the usual double-negation and 'de Morgan' properties...

Ngày tải lên: 22/02/2014, 03:20

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LIQUID, GASEOUS AND SOLID BIOFUELS - CONVERSION TECHNIQUES ppt

LIQUID, GASEOUS AND SOLID BIOFUELS - CONVERSION TECHNIQUES ppt

... bicar‐ bonate [5] Hot water extractions were also performed at temperature around 170 °C at dif‐ ferent pH (the latter were adjusted with a phthalate buffer) and these experiments showed that control ... brevisxylT symporteur ~100% Batch/ Detoxified grape marc hydrolysates Fed batch/ Glucose cosubstrate Fed batch/ Glucose cosubstrate [153] [154] [129] 21 22 Liquid, Gaseous and Solid Biofuels - Conversion ... approach that could lead to isolation of hemicellulose from a lignocellulosic matrix is steam processes This technique relies on impregnation of the feedstock with water (either catalyzed or...

Ngày tải lên: 07/03/2014, 11:20

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Báo cáo khoa học: Mutagenesis at the a–b interface impairs the cleavage of the dystroglycan precursor doc

Báo cáo khoa học: Mutagenesis at the a–b interface impairs the cleavage of the dystroglycan precursor doc

... 5¢-ATGGCTGCTGTCAGGCGCGCC ATACATGAGCTG-3¢ P565A forward: 5¢-CTCATGTATGGCCTGGCTGAC AGCAGCCATGTG-3¢ P565A reverse: 5¢-CACATGGCTGCTGTCAGCCAG GCCATACATGAG-3¢ S654A forward: 5¢-CAGAACATCACTCGGGGCGC TATCGTGGTGGAATGGACC-3¢ ... measured at increasing concentrations of ligand, KD is the dissociation constant, c is the concentration of ligand, biotinylated b-DG(654–750), and Asat and A0 are the absorbances at saturation ... 5¢-GCTGTCAGGCAGGCCAGCCAT GAGCTGGCTGTT-3¢ G563A forward: 5¢-AGCCAGCTCATGTATGCCCTG CCTGACAGCAGC-3¢ G653A reverse: 5¢-GCTGCTGTCAGGCAGGGCATA CATGAGCTGGCT-3¢ L564A forward: 5¢-CAGCTCATGTATGGCGCGCCTG ACAGCAGCCAT-3¢...

Ngày tải lên: 16/03/2014, 02:20

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Growth kinetics of silicon nanowires by platinum assisted vapour–liquid–solid mechanism

Growth kinetics of silicon nanowires by platinum assisted vapour–liquid–solid mechanism

... concluded that step (4), incorporation of Si atoms in a crystal lattice at the liquid /solid interfaces, is the rate-limiting step under the present conditions, for both the Pt and Au catalyst cases ... was the incorporation of Si atoms in a crystal lattice at liquid /solid interfaces The difference in the activation energy between two catalysts (i.e., 130 kJ/mol with the Au catalyst and 80 kJ/mol ... the Arrhenius equation We determined the activation energy with a SiCl4 flow rate of 20 sccm Under these conditions, the growth rate is saturated and thus supersaturation of the catalyst is nearly...

Ngày tải lên: 16/03/2014, 15:05

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DETERMINATION OF ORGANIC COMPOUNDS IN DRINKING WATER BY LIQUID-SOLID EXTRACTION AND CAPILLARY COLUMN GAS CHROMATOGRAPHY/MASS SPECTROMETRY pdf

DETERMINATION OF ORGANIC COMPOUNDS IN DRINKING WATER BY LIQUID-SOLID EXTRACTION AND CAPILLARY COLUMN GAS CHROMATOGRAPHY/MASS SPECTROMETRY pdf

... 0.14 Seven replicates Seven replicates in fortified tap water c Data from samples extracted at pH - for accurate determination of this analyte, a separate sample must be extracted at ambient pH ... reanalyze 12.1.1 Calculate analyte and surrogate concentrations, using the multipoint calibration established in Section 10.0 Do not use daily calibration verification data to quantitate analytes in ... initial calibration It is recommended that the concentration of calibration solution be varied, so that the calibration can be verified at more than one point Note: If the continuing calibration check...

Ngày tải lên: 22/03/2014, 14:20

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