and multilayers of spherical polymer particles prepared by langmuir blodgett and self assembly techniques
Indian and Northern Affairs Canada Internal Audit Report Financial Audit of the Settlement Allotment Prepared by: Audit and Assurance Services Branch April 9, 2009 pptx
... Allotment funds and compliance with the terms of the TB decision and applicable INAC and TB policies The scope of the audit included an overall assessment and detailed testing of a sample of transactions ... the requirements of the TB Policy on Internal Audit and followed the Institute of Internal Auditors’ Standards for the Professional Practice of Internal Auditing Sufficient and appropriate audit ... within the Resolution and Individual Affairs and Chief Financial Officer Sectors and identification and assessment of the existing management control framework for the payment of funds against the...
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Báo cáo hóa học: " Preparation of Fe3O4 Spherical Nanoporous Particles Facilitated by Polyethylene Glycol 4000" docx
... surfaces and are composed of many small Fe3O4 nanoparticles It demonstrates that the small Fe3O4 nanoparticles have self- assembled into Fe3O4 spherical aggregated particles The size of these ... nanoporous particles ¨ Fig Room-temperature Mossbauer spectrum of Fe3O4 spherical nanoporous particles Fig N2 adsorption–desorption isotherm and pore size distribution of Fe3O4 spherical nanoporous particles ... Fe3O4 nanoporous particles are synthesized in the presence of polymer PEG 4000 by thermal decomposition of iron acetylacetonate The morphology of product can be tuned by the amount of PEG 4000 When...
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Báo cáo khoa học " Characterization of stipe and cap powders of mushroom (Lentinus edodes) prepared by different grinding methods " ppt
... particle sizes of cap and stipe of 54.77 lm and 40.90 lm, respectively Shear pulverized powders were then ground and sheared by the strong force between the lapping wheel and rail of a YSC-701 ... calculated as the ratio of mass of the powder and the volume occupied in the cylinder (Bai and Li, 2006) 2.4 Determination of the angles of repose and slide The angle of repose (h) was defined ... of cap and stipe powders, especially the contents of protein and SDF 3.6 Protein and polysaccharide solubility The solubility of protein and polysaccharide of the powders as a function of soaking...
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ethanol sensing properties of tungsten oxide nanorods prepared by
... proportion of WO3 Fig Powder XRD pattern of WO3 nanorods prepared by microwave hydrothermal process Fig EDX spectrum of WO3 nanorods The morphology and microstructure of the products are examined by ... All of the chemical reagents used in the experiment were of analytical grade A typical synthesis process for the preparation of WO3 nanorods was as follows: 1.5 g of Na2WO4Á2H2O and 2.5 g of Na2SO4 ... Results and discussion 3.1 XRD and TEM analysis The typical XRD pattern of the sample is shown in Fig All of the reflection peaks can be indexed to hexagonal WO3 with lattice constants of a = 7.298,...
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acetone sensing characteristics of zno hollow spheres prepared by
... using adhesive graphite tape and sputter coated with gold before analysis Results and discussion Phase and morphology of the products: Typical XRD pattern of the as -prepared ZnO is shown in Fig ... supported by National Natural Science Foundation of China (No 61102006), Natural Science Foundation of Shandong Province, China (No ZR2010EQ009), Shandong Distinguished Middle-aged and Young ... of the spheres And, this porous network is believed to be favorable for gas sensor, which can facilitate the inward and outward gas diffusion Furthermore, FESEM images of the spheres before and...
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Báo cáo hóa học: " Research Article Process Neural Network Method: Case Study I: Discrimination of Sweet Red Peppers Prepared by Different Methods" pot
... neural network Half of this set belonged to one type of pepper class and the other half of the set belonged to the other type of pepper class A new set of 140 images was then prepared to test each ... the mean and standard deviation of Red, Green, and Blue components of these images 4 EURASIP Journal on Advances in Signal Processing (a) (b) (c) Figure 4: Biocrystallogram images of (a) fresh, ... for fresh and pureed, fresh and frozen, and pureed and frozen sweet pepper samples We chose as the decision factor (Figure 8(a)) During testing this ProcNN for discrimination of fresh and pureed...
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Báo cáo vật lý: "Mixing Behavior of Binary Polymer Particles in Bubbling Fluidized Bed" doc
... components A and B with proportions of PA and PB, respectively, the number of particles of A or B per unit mass of component A or B, respectively is given by Equation (4) B ⎡ M ass of particles ... ber of particles ⎤ ⎡ M ass of one ⎤ ⎢ in size range ⎥⎢ ⎥ ⎣ ⎦ ⎣ particle ⎦ (4) M = ρ pV (5) and Mixing Behavior of Polymer Particles where V = 16 πd p = volume of one particle, n = number of particles ... distribution of particle size However the number of particles in a given mass of sample depends on the size distribution of the components Thus, for a binary mixture of spherical particles of components...
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báo cáo khoa học: " Antimicrobial activity of spherical silver nanoparticles prepared using a biocompatible macromolecular capping agent: evidence for induction of a greatly prolonged bacterial lag phase" potx
... [9], and many others [10] As the chemical and physical properties of a nanomaterial are intimately linked to its size and shape, significant effort is, and has, been placed toward the syntheses of ... when encapsulating silver Nps of similar size and shape [21], nor is the effect of processing the particles via freeze drying well-known The importance of understanding the impact that a Np stabilizer ... exclusively), and an Aviv instruments UV-VIS spectrophotometer model 14NT-UV-VIS Preparation of keratin hydrolysate Keratin hydrolysates were prepared by taking cleaned and scoured wool and adding...
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Báo cáo hóa học: " Combing and self-assembly phenomena in dry films of Taxol-stabilized microtubules" pdf
... At the end of the polymerization step, the resulting MTs were stabilized by adding Taxol to a final concentration of 40 lM Fluorescent microtubules were prepared by polymerizing 30 ll of normal ... influence of contact line pinning on the final structure and orientation of the deposited microtubules Finally, we observed peculiar patterns of self- assembly on samples prepared on HOPG by blotting ... studied the physisorption of Taxolstabilized MTs as a step towards MT-templated selfassembly We probed the influence of the nature of the substrate, of the dilution methods and of the deposition protocols...
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Báo cáo hóa học: " Combing and self-assembly phenomena in dry films of Taxol-stabilized microtubules" pot
... At the end of the polymerization step, the resulting MTs were stabilized by adding Taxol to a final concentration of 40 lM Fluorescent microtubules were prepared by polymerizing 30 ll of normal ... influence of contact line pinning on the final structure and orientation of the deposited microtubules Finally, we observed peculiar patterns of self- assembly on samples prepared on HOPG by blotting ... studied the physisorption of Taxolstabilized MTs as a step towards MT-templated selfassembly We probed the influence of the nature of the substrate, of the dilution methods and of the deposition protocols...
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Synthesis, characterization and self assembly of stimuli sensitive materials
... 2.4 Absorption (A) and emission spectra (B) of copolymers in THF solution; P1 (▲), P2 ( ), P3 ( ), and P4 ( ) 70 Figure 2.5 TEM images of nanofibres formed by self- assembly of copolymers (P2) in ... electropolymerization of PCzMMA-b-PBMMA (c) and PFlMMA-b-PBMMA (d) 102 Figure 3.10 Linearity of current with number of scans of electropolymerization of block copolymers; PCzMMA-bPBMMA (a) and PFlMMA-b-PBMMA ... electroactive groups, the self- assembly properties were investigated The intermolecular interactions are important towards the self- assembly of polymers and the target polymers gave nanofiber morphology...
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Electrochemical syntheses and self assembly of nanostructure as modified electrodes for polythiophene preparation
... 6.3 (A) TEM and (B) AFM height images of AUSSBT nanoparticles 140 6.4 (A) TEM and (B) AFM height images of AURSBT nanoparticles 141 6.5 (A) TEM and (B) AFM height images of AU5SBT nanoparticles ... Bibliography 197 x List of Figures 1.1 Illustration of energy band structures of materials VB: valence band, CB: conduction band 1.2 Polaron and bipolaron structures of polythiophene ... state by BF3 ¢OEt2 87 3.12 XPS spectra of C(1s) and S(2p) of (A) BF3 doped PBT, (B) dedoped PBT prepared from electrosynthesis in BF3 ¢OEt2 90 3.13 XPS spectra of C(1s) and S(2p) of...
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liquid crystals materials design and self-assembly
... not always the case that self- assembly of anisometric units and amphiphilic self- assembly enhance each other These two modes of self assembly can also be in competition and this can modify the ... combination of order and mobility provided by the LC state Halle, December 2011 Carsten Tschierske Contents Fluorinated Liquid Crystals: Design of Soft Nanostructures and Increased Complexity of Self- Assembly ... Liquid Crystals: Design of Soft Nanostructures and Increased Complexity of Self- Assembly by Perfluorinated Segments Carsten Tschierske Abstract The effects of perfluorinated and semiperfluorinated...
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Báo cáo khoa học: Protection of chylomicron remnants from oxidation by incorporation of probucol into the particles enhances their uptake by human macrophages and increases lipid accumulation in the cells ppt
... accumulation in macrophages, and that this is caused by a markedly increased rate of uptake of the particles and by a raised intracellular synthesis of triacylglycerol, but not of cholesteryl ester Furthermore, ... two types of particles TBARS values, however, were significantly lower in pCRLPs than in CRLPs The lipid and TBARS content of the CRLPs and pCRLPs was not affected by the incorporation of the DiI ... (TBARS) content of chylomicron remnant-like particles (CRLPs) Standard CRLPs, and CRLPs containing probucol (pCRLPs), were prepared as described in the Materials and methods and the triacylglycerol...
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structural and electrochromic properties of tungsten oxide prepared by surfactant-assisted process
... temperature of 400 1C, the former morphology of sample C changed rimous and rough Such surface mophology of sample D could be due to the agglomerated growth of grains and the formation of good crystallinity ... aggregated The growth of the grain size has led to the partial disruption of the mesopores and decreased the BET surface area to 33.8 m2/g and as about 0.24 times of sample C identified by nitrogen adsorption– ... property of the electrochromic electrode was studied by means of in-situ transmittance spectra, and the dynamic transmittance modulation was recorded at a wavelength of 633 nm Results and discussion...
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synthesis and characterization of wo3 nanostructures prepared by an aged-hydrothermal method
... Sideras-Haddad E, Forbes A, Arendse C Raman spectroscopy of WO3 nanowires and thermo-chromism study of VO2 belts produced by ultrasonic spray and laser pyrolysis techniques Phys Status Solidi (a) 2008;205(1):150–4 ... synthesis of WS2 nanotubes from WO3 nanorods prepared by a hydrothermal route Solid State Sci 2005;7:67–72 [19] Ha J-H, Muralidharan P, Kyung Kim Do Hydrothermal synthesis and characterization of self- assembled ... the detector; and a computer-controlled XY stage with a spatial resolution of 0.1 µm with two interchangeable gratings (600 and 1800 g mm− 1) and a confocal microscope with 10, 50, and 100× objectives...
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Báo cáo hóa học: " Fabrication and characterization of carbon-based counter electrodes prepared by electrophoretic deposition for dye-sensitized solar cells" doc
... illumination of 100 mW/cm2 under an open-circuit condition and in a frequency range of 0.1 Hz to 100 KHz Results and discussion Figure shows the FE-SEM images of deposited (a) graphenes, (b) SWNTs, and ... contributions HK fabricated the cells and wrote the paper HK and HC did the characterization and imaging of the solar cells SH and YK helped design the experimental study and advised on the project MJ ... sealed by the surlyn polymer foil and a cover glass The deposited SWNTs, graphenes, and carbon composites were characterized by field-emission scanning electron microscopy [FE-SEM] and ultraviolet-visible...
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báo cáo hóa học:" Fabrication and characterization of carbon-based counter electrodes prepared by electrophoretic deposition for dye-sensitized solar cells" pot
... illumination of 100 mW/cm2 under an open-circuit condition and in a frequency range of 0.1 Hz to 100 KHz Results and discussion Figure shows the FE-SEM images of deposited (a) graphenes, (b) SWNTs, and ... contributions HK fabricated the cells and wrote the paper HK and HC did the characterization and imaging of the solar cells SH and YK helped design the experimental study and advised on the project MJ ... sealed by the surlyn polymer foil and a cover glass The deposited SWNTs, graphenes, and carbon composites were characterized by field-emission scanning electron microscopy [FE-SEM] and ultraviolet-visible...
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Báo cáo hóa học: " Magnetic and Cytotoxicity Properties of La12xSrxMnO3 (0 £ x £ 0.5) Nanoparticles Prepared by a Simple " pptx
... revealed by SEM and TEM, are shown in Figs and 5, respectively The SEM images reveal that the prepared samples are spherical consisting of agglomerated nanoparticles with particle sizes of ca 50–100 ... with SPSS software version 11.5 (SPSS, Germany) Results and Discussion Structural and Morphology Characterization The XRD results of the prepared LSMO nanoparticles at 600, 700, 800, and 900 °C ... Doping level of Sr ( x ) 0.5 20 value of 45 emu/g for La0.7Sr0.3MnO3 nanoparticles (*30 nm) synthesized by citrate-gel route reported by Rajagopal et al [12], and higher than the value of 23 emu/g...
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Synthesis and electrochemical preformances of tribasic and tetrabasic lead sulfates prepared by reactive grinding docx
... Characterization of pure 4BS phases obtained by grinding of PbO and PbSO4 or PbO and PbOPPbSO4 mixtures with a PbOrPbSO4 ratio equal to 5: Ža XRD pattern of the sample prepared from dry powders ŽPbO and PbSO4 ... were commercial STREM PbO Žmixtures of a- and b-PbO., commercial PROLABO lead sulfate, and pure PbO P PbSO4 prepared by reaction of 5.62 g PbO with 3.01 g H SO4 and 172 g H O at room temperature ... w7,9x, and Žii a 4BS phase synthetized by curing a 3BSrPbO mixture The 3BS samples show needle-shape particles but the 3BS br particles are twice smaller than the standard sample prepared by the...
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