synthesis of ceria particles and cmp performance

Ngày tải lên: 14/11/2014, 12:32

... RESULTS AND DISCUSSION Selective modification of the primary and secondary hydroxyl groups of β-CD is complicated and very difficult to control because of statistical and steric problems D′Souza and ... means of electroosmosis instead of pressure [52] Like other electrophoretic techniques, CEC provides a flat flow profile of the mobile phase and provides the possibility of using small size particles ... enantioselectivity [97] Synthesis of bonded crown-ether capped β-CD type of CSP is difficult because selective modification of the primary and secondary hydroxyl groups of β-CD is complicated and very difficult...

Ngày tải lên: 17/09/2015, 17:19

... pseudosubstrates and as reversible and irreversible inhibitors of EIIGlc and EIIMan Two assays were employed: (a) nonvectorial phosphorylation of Glc (analogues) by solubilized and purified EII and by EII-containing ... 279 ([M + Na]+, 100%) RESULTS Synthesis of inhibitors The synthesis and characterization of compounds 1b, 1d, 1f, 1g and 3b (Scheme 1) is reported for the first time, and the epoxypropyl derivative ... (1982) Synthesis of destomic and epidestomic acid, and their C-6 epimers Carbohydr Res 104, 87–104 30 Johns, B.A., Pan, Y.T., Elbein, A.D & Johnson, C.R (1997) Synthesis and biological evaluation of...

Ngày tải lên: 21/02/2014, 01:21

... mortality and illnesses Air Pollution and the Health of New Yorkers: The Impact of Fine Particles and Ozone I of deaths, hospital admissions and emergency department visits (Tables and 2) Ozone ... Control and Prevention, Danaei 2009) Air Pollution and the Health of New Yorkers: The Impact of Fine Particles and Ozone I Fine Particles (PM2.5) are small, airborne particles with a diameter of ... Pollution and the Health of New Yorkers: The Impact of Fine Particles and Ozone Overall, older adults (65 years of age and older) have much higher rates of respiratory hospitalizations and account...

Ngày tải lên: 06/03/2014, 16:20

... the DLVO (Derjaguin and Landau, Verwey and Overbeek) theory (Derjaguin and Landau 1941; Verwey and Overbeek 1948) The theory explains how particles in aqueous system interact and how different ... of the system and further the flocculation and coagulation Figure illustrates how different forces attract and repulse the particles, what is the effect of salt concentration, and what kind of ... errors in demanding biocide dosing 15 THE OBJECTIVE AND THE OUTLINE OF THE STUDY The objective of this work was to study the interactions of microbial activity, biocide usage and - creation and chemical...

Ngày tải lên: 18/03/2014, 02:20

... forces of samples S1, S2, and S3 are 67, 146, and 584 Oe, respectively, indicative of soft magnets The remnant magnetizations of samples S1, S2, and S3 at K are determined to be 0.00007, 0.0024, and ... amount of Na2 SO3 and other kind of inorganic ions were performed Keeping the amounts of FeSO4 and water constant, the molar ratio between FeSO4 and Na2 SO3 varied Fig 3a is the TEM image of the ... simple and versatile approaches to synthesize 1D nanostructures of α-Fe2 O3 that are easily tunable in size, which will then facilitate our understanding of the shape and sizedependent properties of...

Ngày tải lên: 05/05/2014, 15:26

... Synthesis of anisotropic metal nanoparticles motivates the development and innovation of theoretical methods for describing the unique properties of these nanoparticles The study of colours of ... large-scale production of nanobuilding blocks Chemical synthesis of metal nanoparticles involves the reduction of metal salts followed by nucleation and growth in presence of stabilizing agents ... nanoparticles, b (i) HR-TEM of red-coloured silver sol and (ii) SAED pattern of the corresponding sol and c (i) HR-TEM of green-coloured silver sol and (ii) SAED pattern of green sol 123 3-3.9 4-4.9...

Ngày tải lên: 21/06/2014, 17:20

... 10 s a and b 25 s of exposure to microwave; and c ZnO nanopowder in grams quantity Fig a–d Low and high magnification FESEM images of ZnO nanowires Figure 5a illustrates the morphology of a nanowire ... the Fig a and b Low and high magnification TEM images of ZnO nanowires, c Corresponding SAED pattern, and d HRTEM 123 952 Nanoscale Res Lett (2009) 4:948–954 Gas Sensing Performance of ZnO Nanowires ... the surface is reduced and so is the width of the depletion region, the energy band bending, and the corresponding energy barrier Consequently, the conduction of the regions of the nanowires near...

Ngày tải lên: 22/06/2014, 00:20

... ratios of nickel/oxygen in the NiO fibers and zinc/oxygen in the ZnO fibers are near to the theoretical ratio of NiO and ZnO of 1:1 The XRD patterns of the NiO and ZnO fibers are presented in Fig 5a and ... patterns of the NiO fibers (a) and ZnO fibers (b) pressure and the cohesion between the nanoparticles To promote the shrinkage of the shell layers, low concentration of nitrate precursor solution and ... pressure during removal of the core templates The adoption of high heating rate of 10 K/min results in rapid oxidation of the PAN fiber templates and release of a large amount of gases during short...

Ngày tải lên: 22/06/2014, 01:20

... preparation of hydride catalysts Figure 2b shows the EDX spectra of Nifilled MWNT TEM and HRTEM images of SWNTs obtained at a growth temperature of 950°C are respectively shown in Fig 3a and b It ... MWNTs band), mainly due to defects [20] is also observed Raman spectra for SWNTs show the presence of RBM, at 388.9 cm–1, in addition to the G- and Dbands The increase in the intensity of D-band ... decomposition of methane over Ni–Cu–MgO catalyst [24] Since the morphology of deposited carbon and the methane decomposition rate depend on the structure and nature of the active catalytic sites and the...

Ngày tải lên: 22/06/2014, 22:20

... SAPK/JNK (p46 and p54), particularly the level of the p46 isoforms Diacerein and rhein, however, had no effect on the activation level of either kinase Figure Effect of diacerein and rhein on ... acquisition of data, analysis and interpretation of data, manuscript preparation, and statistical analysis J-PP participated in study design, analysis and interpretation of data, and manuscript ... study design, analysis and interpretation of data, manuscript preparation, and statistical analysis SKT participated in acquisition of data, analysis and interpretation of data, and manuscript preparation...

Ngày tải lên: 09/08/2014, 10:23

... that the presence and size of product bands interactions Validation of ReAnoCDS05 predictions by RT-PCR unambiguously verify one of the CDS predictions Maps of the ReAnoCDS05 and Ensembl CDS predictions ... comparison of ReAnoCDS05 and Ensembl based on a set of full-length cDNA sequences Manual comparison of ReAnoCDS05 and Ensembl based on a set of full-length cDNA sequences The charts show the analysis of ... left side of each panel is a map of CDS predictions and supporting lines of evidence, and the right side is a reverse-color image of, from left to right lanes, PhiX/Lambda DNA size standard (Ph),...

Ngày tải lên: 14/08/2014, 16:21

... year-season, stage and number of lactation and cows; that of the Brown Alpine herd, year-season, stage and number of lactation, sire of the cow and genotypes at loci (in the case of the a,,-Cn expression, ... composed of more than 60% haemoglobin A and less than 40% of haemoglobin S (Wellis and Itano, 1951; Wrightstone and Huisman, 1968) Such different rates of expression of globin genes appear to be even ... proteins after removal of a-lactalbumin (Sluyterman and Elgersma, 1978) The separation of the two genetic variants achieved by chromatofocusing (Sluyterman and Wijdenes, 1978) Purity and homogeneity...

Ngày tải lên: 14/08/2014, 20:20

... returns of Standard and Poor’s 500 list of Corporations against three sub-samples based on four measures of environmental performance In particular, they divide firms into the top 75%, top 50% and ... relationship between environmental performance N.P. Tuân / VNU Journal of Science, Economics and Business 28, No. 5E (2012) 1‐16 and financial performance, and develops hypotheses Following that, ... the data and samples as well as variables and their measurement In the fourth section, analyses and results are reported The fifth and sixth sections present a discussion of the findings and our...

Ngày tải lên: 26/03/2015, 08:42

... eliminating waste and avoiding the use of toxic and/ or hazardous reagents and solvents in the manufacture and application of chemical products From feedstocks to solvents, synthesis and processing, ... Synthesis of alkenylamine (4) from iodo-substituted-D-furanoside (3) 208 vii 6.4.4 Formation of carbamate (5) and the subsequent synthesis of 214 hydroxymethyl-pyrrolidine-3,4-diols (6) 6.5 Synthesis ... for the synthesis of various useful and valuable chemicals The objective of this thesis is to investigate the applications of heterogeneous catalysts in the catalytic green synthesis of various...

Ngày tải lên: 09/09/2015, 10:17

... Synthesis of nm Fe3O4 Nanoparticles 23  2.2.2  Synthesis of nm Fe3O4 Nanoparticles 24  2.2.3  Synthesis of MnFe2O4 Nano-Octahedrons 24  2.2.4  Synthesis of Silver Nanoparticles ... image of IONC-b5 (Inset: SAED ring patterns of IONC-b5); (h) XRD profile of IONC-b5; and (i) VSM profiles of core SPION-7nm (∆) and IONC-b5 (□) (Page 96) Figure 5-3: (a) M(H) curves of SPION-4nm and ... CHAPTER 3:  Synthesis of Magnetic Nanoparticles and Functional Amphiphilic Brush Copolymer 41  3.1  Motivations and Design of Experiment 41  3.2  Synthesis of Iron Oxide Nanoparticles...

Ngày tải lên: 09/09/2015, 17:55

... Figure 3-7: (A) VSM profile of nm and 14 nm Fe3O4 nanoparticle (B) High resolution VSM profile of nm and 14 nm Fe3O4 nanoparticles Inset: photos of a ferrofluid of Fe3O4 nanoparticles dissolved ... Illustration of band structure of inorganic semiconductor as bulk material, nanocrystal and atom (b) Schematic depiction of band diagram of QDs and corresponding electron transition between CB and VB ... comparison of absorption (dashed line) and emission (solid line) spectra, and stokes shift of (a) organic dye and (b) QDs Figure 1-5: Schematic illustration of the formation of iron oxide nanoparticles...

Ngày tải lên: 10/09/2015, 09:30

... addition of 50 mL of 10% citric acid, the mixture was extracted three times with 30 mL of EtOAc The combined organic layers were washed twice with 20 mL of 10% citric acid, 20 mL of water and 20 mL of ... addition of mL of water and slowly warmed to 23 °C over 1.5 h The reaction mixture was extracted three times with 10 mL of DCM The combined organic layers were washed with 10 mL of 5% NaHCO3, water and ... 4-43 OH and LiOH (1.0 mg, 0.021 mmol) were dissolved in mL O of a mixture of EtOH and water (2/1) under an inert atmosphere of argon The reaction mixture was stirred for 18 h at 23 °C and poured...

Ngày tải lên: 10/09/2015, 15:48

Ngày tải lên: 10/09/2015, 15:49

Ngày tải lên: 10/09/2015, 15:50