particle shape and zeta potential

... calculate the zeta potential in this work 2.3 The surface potential and zeta potential In a theoretical model that has been well described in [e.g., 14, 15], the surface electric potential  for ... layer at which flow occurs is termed the shear plane and the electric potential at this plane is called the zeta potential (ζ) ) 2.2 Electric potential distribution in the EDL Following assumptions ... surfaces are: (1) the potential at the surface x = 0, (0)d that is called the surface potential or Stern potential); (2) the potential in the bulk liquid at distance x = ∞, ()0 and 0 ) (   x

Ngày tải lên: 24/01/2021, 19:33

... calculate the zeta potential in this work 2.3 The surface potential and zeta potential In a theoretical model that has been well described in [e.g., 14, 15], the surface electric potential d  ... linearized and nonlinear solution in determining the zeta potential strongly depends on electrolyte concentration, fluid pH and shear plane distance At a given electrolyte concentration, the zeta potential ... are: (1) the potential at the surface x = 0,  ( 0 )  d that is called the surface potential or Stern potential); (2) the potential in the bulk liquid at distance x = ∞, ()0 and ( )  0 

Ngày tải lên: 04/02/2021, 20:09

... 2.2.3 Zeta potential ZP measurements were obtained with a Malvern Zetasizer NanoZS with a 64-channel correlator and 633 nm red laser The technique used for ZP measurement is the Malvern standard ... interaction between glucosamine hydrochloride and sodium dodecylsulphate micelles using conductometric, isothermal calorimetry, zeta-potential titrations, and NMR NOESY Marcos Roberto Abreu ALVES1, ... endothermic desolvation of monomers and exothermic electrostatic attraction between Na+ cations and DS− anions groups.7,9,23 −25 Figures 3 and 4 show that cmc and ∆micG0 decrease as a function

Ngày tải lên: 12/01/2022, 23:05

... surfactants and particle shape in the enhancedLiu Yang,1,2, aXielei Chen,1Mengkai Xu,1and Kai Du1 1Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and ... TiO2 nanoparticles in deionized water by using surfactant CTAB as dispersant and measured the thermal conductivity It was found that besides the particle loading, particle size and shape could ... scientific and industrial world because of their outstanding fluidity, stability1and thermal and transport characteristics2comparing to the fluids containing millimeter or micrometer particles

Ngày tải lên: 04/12/2022, 16:20

... compensation and disclosures, auditing operational efficiency and effectiveness, auditing or evaluating compliance with laws and regulations, and providing training and education to management and staff ... governance, risk, and compliance (GRC) Those testing new methods indicated that they were seeking to achieve better balance between risk and opportunity; to control risk and compliance cost; and to enhance ... models and approaches to assurance and risk management Changing roles and responsibilities are also influencing corporate efforts to improve risk management, as are the search for audit talent and

Ngày tải lên: 23/03/2014, 04:20

... “Financial Ratios, Discriminant Analysis and the Prediction of Corporate Bankruptcy,” Journal of Finance, September 1968; and E Altman, R Haldeman and P Narayanan, “Zeta Analysis: A New Model to Identify ... Z-Score and ZETA ® Models Background This paper discusses two of the venerable models for assessing the distress of industrial corporations These are the so-called Z-Score model (1968) and ZETA® ... sized distressed firms and is unquestionably relevant to both small and large firms Z-Variable Selection After the initial groups are defined and firms selected, balance sheet and income statement

Ngày tải lên: 23/03/2014, 17:44

... 1Electronics Supply Networks and Water Pollution in China Understanding and Mitigating Potential Impacts November 2010 www.bsr.org Trang 2About this Report This report and related activities were ... wastewater standards improves, along with public awareness and civil society engagement on environmental issues, global companies have a growing need to effectively understand and mitigate potential ... central China and the eastern seaboard experience the most concentrated pollution In the Shanghai area, only one percent of surface water meets drinking water standards, and Zhejiang and Guangdong

Ngày tải lên: 29/03/2014, 21:20

... generated and tested for the first time the immunogenicity and protective efficacy of chimeric inactivated flu virus vaccines expressing 1-7 or 1-10 aa of Ab42 (flu-Ab1-7and flu-Ab1-10) in mice and ... doses of killed WSN-A b 1-10 and WSN-WT viruses formulated in Quil A Lines and error bars indicate the average ± s.d (n = 6 for groups immunized with 5 and 25 μg and n = 16 for groups immunized ... anti-Ab and anti-influenza antibodies Materials and methods Mice Female, 5-6 week-old C57Bl/6 mice were obtained from the Jackson Laboratory (MN) All animals were housed in a temperature- and light

Ngày tải lên: 18/06/2014, 22:20

... the articulation and other factors such as position of light sources and skin pigmentation The main challenge here is to capture and model realistic covariations of appearance and shape, notably ... Appearance Models [32] where independent shape and appearance models are first trained and then linked, we are only concerned here by changes of shape and appearance directly linked with our articulatory ... con-tent and paralinguistic settings of the messages, (b) the appropriate choice of voice quality, communicative and emotional facial expressions, gaze patterns, and so forth, adapted to situation and

Ngày tải lên: 21/06/2014, 20:20

... of c and determined by spherical coordinatesψ and ω Parameterization variables ψ and ω are determined asψ ∈ { c · i − μ; i = 0, 1, 2, , 2μ/c }andω ∈ { c · j − λ; j =0, 1, 2, , 2λ/c }and [μ/c] ... Modulating the Shape and Size of Backprojection Surfaces to Improve Accuracy in Volumetric Stereo X Zabulis and G D Floros Institute of Computer Science, Foundation for Research and Technology-Hellas, ... to shape those can be essential to the goals of scene reconstruction For example, shape-from-silhouette is a method that can constrain significantly the search space while shape-from-shading and

Ngày tải lên: 21/06/2014, 22:20

... characteristics Whereas pH and potential nitrification were mostly affected in the oak stand, herbs and mosses were particularly influenced in the spruce stand Potential net nitrate production and pH were increased ... spruce and sessile oak forest stands We focus on the botanical aspects, soil chemical parameters and potential nitrogen (N) mineralisation rates. 2 Materials and methods 2.1 Location and experimental ... Nature and Forestry) [17]. Many biotic and abiotic factors govern forest dieback, the extent of which often depends on regions and tree species Soil acidification due to atmospheric pollution, and

Ngày tải lên: 08/08/2014, 14:21

... 15-LOX-1 and -2 pro-teins in OA cartilage 13-HODE and 15-HETE inhibited IL-1 β-induced MMP-1 and MMP-13 expression in chondrocytes To examine the effects of 15-LOX-1 and -2 metabolites on MMP-1 and ... cytokines TNF-α and IL-17 also contribute to the pathogenesis of OA and are potent inducers of MMP-1 and MMP-13 Therefore, we exam-ined whether 13-HODE and 15-HETE could also attenuate TNF-α and IL-17-induced ... synthesis 13-HODE and 15-HETE suppressed IL-1 β-induced MMP-1 and MMP-MMP-13 production in a PPAR γ dependent manner The 15-LOX metabolites 13-HODE and 15-HETE are ligands for PPARγ, and PPARγ activation

Ngày tải lên: 09/08/2014, 14:20

... comparison with Arabidopsis Cam and CML genes were carried out Results and Discussion Identification and phylogenetic analysis of EF-hand-containing proteins To identify EF-hand-containing proteins, ... pro-teins Number and structure of EF hand The number of EF hands in the rice EF-hand-containing proteins varied from 1 to 4 A summary of the number of proteins having 1, 2, 3, or 4 EF hands is shown ... fourth EF hand in OsCaM3 Among the twenty EF-hand motifs of OsCaMs, residues 1(+X) and 3(+Y) are exclu-sively filled with aspartate (D); residues 5(+Z) are aspar-tate (D) and asparagine (N); and residues

Ngày tải lên: 12/08/2014, 05:20

... measurement of VLP size and Gag copy number FFS provides information about the size of a particle through the autocorrelation function and the brightness and concentration of the particles through ... insight into HTLV-1 particle mor-phology A deeper understanding of the basic mechan-isms involved in HTLV-1 particle assembly and morphology should help to enhance our global under-standing of the ... represent the first quantitative biophysical analysis of HTLV-1-like particles and reveal novel insights into particle morphology and Gag stochiometry Introduction There are approximately 15-20 million

Ngày tải lên: 13/08/2014, 01:20

... exper-iments, wrote the paper, and acquired all of the funding for this study SMN and A-JL performed CT scans and detailed analy-ses of catheter positioning and blood vessels and participated in drafting ... Hemodynamics (CO and central venous pressure [CVP]) and blood composition (blood cell counts, plasma proteins, and colloid osmotic pressure) were measured Catheter tip positions and vessel diameters ... femoral vein and the underlying hemodynamics (that is, car-diac output [CO] and central venous pressure [CVP]), cathe-ter tip position, and hemorheological features (blood composition and volume

Ngày tải lên: 13/08/2014, 03:20

... dimerisation and encapsidation are associated with correct assembly and particle maturation in HIV-2 Figure 6 Efficient dimerisation and encapsidation are associated with correct assembly and particle ... particles (ii) and particles containing multiple cores (iii) are shown Scale bar: 100 nm (B) The proportion of mature, immature and multiple core particles was calculated for wild type (WT) and ... WT and 199 DM particles by two individuals independently Error bars correspond to the SD *, Student t test p value < 0.05 (C) The particles were measured and the average sizes of WT and DM particles

Ngày tải lên: 13/08/2014, 05:22

... effect and zeta potential at the flocculated-dispersed transition state 29 3.1 Zeta Potential 29 3.2 Yield Stress 36 3.3 Yield Stress – Zeta Potential Relationship and Critical Zeta 40 Potential ... Relationship between Yield Stress, Zeta Potential and Critical Zeta Potential The sum of the van der Waals potential and the electrostatic repulsive potential between particle pairs forms the basis ... between maximum zeta potential and zero zeta potential at high pH xi List of Tables LIST OF TABLES Table Properties of alumina coated titania Table Critical zeta potential of alumina and alumina...

Ngày tải lên: 11/09/2015, 10:18

... (filer paper), BWX and PWSD The enzyme kinetic studies for cellulase and xylanase (Km and Vmax) were performed with 1-10 mg/ml of CMC and BWX, respectively [35] The crude cellulase and xylanase were ... albumin as standard [38] All experiments were run in duplicate and standard deviations (SD) were calculated using Microsoft Excel and results were presented as average ± SD Results and discussion ... degradation and conversion for sustainable production of bioenergy and highvalue products; enzyme production and catalysis, bioremediation and biorefineries Lew is the author of patents and over...

Ngày tải lên: 05/09/2013, 16:11

... stands up -ing form past tense past participle standing up stood up stood up stand up p.v When you stand up, you change from a sitting position to a standing position Get up is similar to stand ... 216 29 FOCUS ON: phrasal verbs and might, may, and can Possibility: may and might Both may and might are used to express a medium level of possibility When may and might are used to express possibility ... similar to stand up Everyone stands up when the judge enters the courtroom When the students are sleepy, the teacher makes them stand up stand up p.v [informal] When you stand people up, you not arrive...

Ngày tải lên: 01/11/2013, 12:20

... Administration of potentially antiandrogenic pesticides (procymidone, linuron, iprodione, chlozolinate p,p’DDE, and ketoconazole) and toxic substances (dibutyl- and diethylhexyl phthalate, PCB 169, and ethane ... TDS-like effects of ECs and EC mixtures in animal studies, together with new understanding about when and how androgens regulate development of the male reproductive system and how this may relate ... fungicides (such as Vinclozolin, DDE and Procymidone) exert their antiandrogenic effects by binding to the AR – and then instead of activating it, sit there and block it and thus prevent activation of...

Ngày tải lên: 13/02/2014, 10:20