chemical characterization of aerosol particles by laser raman spectroscopy

... and characterization of CuO nanowires by a simple wet chemical method Anita Sagadevan Ethiraj1 and Dae Joon Kang*1 BK21 Physics Research Division, Department of Energy Science, Institute of Basic ... report a successful synthesis of copper oxide nanowires with an average diameter of 90 nm and lengths of several micrometers by using a simple and inexpensive wet chemical method The CuO nanowires ... obtained Thus, the presence of a small amount of TG can render the nanowires of CuO welldispersed, as seen clearly in the micrograph of CuO with TG The average diameter of the CuO nanowires was...

Ngày tải lên: 20/06/2014, 21:20

... experimental ratios of the intensities of every couple of layers of known composition in the structures (GaAs substrate/buffer, In 0.51 Ga 0.49 P, Al0.26 Ga 0.74 As, taken as two by two) as shown ... of the experimental intensity of sublayers and to the intensity of all the inner standards are then compared to the calculated values of similar ratios for all the alloys that can be formed by ... http://www.nanoscalereslett.com/content/6/1/194 Page of Table Values of the experimental ratio Rexp of the HAADF intensity IHAADF of sublayer #1 to those of the three alloys (GaAs substrate, In0.51Ga0.49P...

Ngày tải lên: 21/06/2014, 05:20

... and characterization of CuO nanowires by a simple wet chemical method Anita Sagadevan Ethiraj1 and Dae Joon Kang*1 BK21 Physics Research Division, Department of Energy Science, Institute of Basic ... report a successful synthesis of copper oxide nanowires with an average diameter of 90 nm and lengths of several micrometers by using a simple and inexpensive wet chemical method The CuO nanowires ... obtained Thus, the presence of a small amount of TG can render the nanowires of CuO welldispersed, as seen clearly in the micrograph of CuO with TG The average diameter of the CuO nanowires was...

Ngày tải lên: 21/06/2014, 17:20

... resuspended in Mops medium [5.5 gÆL)1 of Mops free acid, 5.1 gÆL)1 of Mops sodium salt, 0.5 gÆL)1 of NaCl, gÆL)1 of NH4Cl, 0.06 gÆL)1 of Na2HPO4Æ2H2O, 0.05 gÆL)1 of KH2PO4, mm MgSO4, 0.1 mm CaCl2, ... physical characterization of the HbpR binding sites of the hbpC and hbpD promoters J Bacteriol 184, 2914– 2924 20 Jaspers MC, Sturme M & van der Meer JR (2001) Unusual location of two nearby pairs of ... 7, like mutant 5, was impaired in binding of the R13 region Both of these patterns contributed to the loss of binding contacts of mutant 72 Construction of a DA HbpR derivative In order to study...

Ngày tải lên: 07/03/2014, 17:20

... communities Epidemiology 2008, 19:3-9 Jackson WJ, Summers AO: Biochemical characterization of HgCl2inducible polypeptides encoded by the mer operon of plasmid R 100 J Bacteriol 1982, 151:962-970 Hamer DH: ... concentration of 0.01 OD600 in ml of LB broth amended with HgCl2 to final concentrations of 0, 5, 10, 20, 40, 80, 100, 120, 140, and 160 μM The lac promoter in the pBlueScript vector was induced by the ... this is that the cell is modulating the production of polyphosphates by restricting the availability of ATP in order to prevent the depletion of the cellular ATP pool It is likely that there was...

Ngày tải lên: 23/03/2014, 22:20

... amount of LMW heparin or water (controls) Thus, the differences in the positions of the fitted straight lines are indicative of the amount of bound peptide It is clear that binding of heparin by the ... AP-1), the data cover only a limited part of the binding curve because of peptide solubility problems and because of the limits of detection offered by UV-based detection in CE The data therefore ... approximately equal amounts of two components with monoisotopic masses of 1603.13 and 1585.34 The mass of 1603.13 is in agreement with the theoretical monoisotopic mass of 1602.78 for AP-1 By amino-acid sequencing...

Ngày tải lên: 31/03/2014, 23:20

... http://www.nanoscalereslett.com/content/6/1/400 Page of Figure Schematic of the HfO2 nanostructuring process (a) Schematic drawing of the starting multilayer structure (b) Patterning of the photoresist by laser interference lithography ... profile with a 70° inclination angle is achieved by the formation of a sidewall passivation layer comprised of non-volatile reaction by- products of the CF4 etching process It should be noted here ... http://www.nanoscalereslett.com/content/6/1/400 Page of Figure AFM images of the HfO2 nanopattern (a) Three-dimensional view of the nanostructured HfO2/GaAs surface morphology (b) Crosssection scan profile of an etched trench...

Ngày tải lên: 21/06/2014, 03:20

... conducted an examination of the collected nanofluids material properties Preparation of carbon/water nanofluid by plasma arc The carbon/water nanofluid in this study was prepared by the plasma arc system ... http://www.nanoscalereslett.com/content/6/1/293 Page of 11 b a d c Figure TEM image of carbon nanoparticles (a) NC-70, (b) NC-80, (c) Edge of NC-70, (d) Edge of NC-80 Figure Particle size distribution of carbon/water nanofluid weighing ... nanoparticles The thickness of carbon nanoparticles is much smaller than its length and width in the photographs Overall, the shape of these nanoparticles is of the shape of flakes (d-Spacing about...

Ngày tải lên: 21/06/2014, 04:20

... START OF THIS PROJECT GUTENBERG EBOOK THE CHEMICAL HISTORY OF A CANDLE *** Produced by Clare Boothby, Richard Prairie and the PG Online Distributed Proofreading Team THE CHEMICAL HISTORY OF A ... the means of bringing that fuel to the place of chemical action, the regular and gradual supply of air to that place of action—heat and light—all produced by a little piece of wood of this kind, ... because of the irregularity of the stream of air and the badness of the cup which is formed thereby You may see some pretty examples (and I trust you will notice these instances) of the action of...

Ngày tải lên: 28/06/2014, 19:20

... Linear regression of signals at 10, and ng/ml of anti-His monoclonal antibody Detection limit was determined based on the linear fitting equation with a cutoff value of 1000 RLU Mab) By linear regression, ... Specificity of the direct p30 CMIA was evaluated with a different set of 985 blood donor samples (set 3) Distribution of the assay values for the donor population had a mean of 420 RLU with SD of 195 ... and p30 was also confirmed by complete inhibition of binding to the native proteins in the presence of corresponding p15E or p30 recombinant proteins (data not shown) Of note, several major bands...

Ngày tải lên: 13/08/2014, 01:20

... and Chemical Names of Herbicides Approved by the Weed Science Society of America Below is the complete list of all common and chemical names of herbicides approved by the Weed Science Society of ... Parker, D E Riechers, T W Miller (ex-off), F Tardif (ex-off) Common and Chemical Names of Herbicides Approved by the Weed Science Society of America Common Name Chemical Name acetochlor acifluorfen ... is a salt or simple ester of a parent compound, the WSSA common name applies to the parent compound only The chemical name used in this list is that preferred by the Chemical Abstracts Service...

Ngày tải lên: 04/09/2015, 07:23

... the focused laser beam, and the intensity of the Si Raman peak at 520 cm−1 was recorded as a function of the stage position Raman scattering intensity is proportional to the incident laser power, ... HeNe laser Laser (b) Raman scattering Power meter Beam splitter Bi Raman spectrometer Sample film SiO2 Edge filter Downloaded by [Purdue University] at 09:34 21 April 2014 Objective Sample (a) Raman ... measured by the Raman laser beam is the Gaussian-weighted average temperature: ∞ TRaman = T(r) exp − r2 rdr r ∞ exp − r2 rdr r (7) It can be shown that the Raman- measured temperature at the laser...

Ngày tải lên: 06/05/2014, 08:54

... diameters (50% response probability) of and 10 nm for the total aerosol and of 14 and 80 nm for the non-volatile aerosol The latter cut-off diameter of 80 nm was achieved by a CPC equipped with a diffusion ... aircraft carried a large suite of instruments for trace gas and aerosol measurements, which allowed a detailed characterization of the chemical composition and aerosol content of the Asian pollution ... Europe 4.4 Aerosol characterization Regarding the aerosol characterization, we focus our analysis on flight A because the frequent encounter of aircraft contrails and the large variability of the...

Ngày tải lên: 15/03/2014, 20:20

... for the analysis of electrical tape,42,43 gasoline,58 hair dye,46 soil,49 pen ink,51 and tire rubber.59 19 CHAPTER RAMAN SPECTROSCOPY 2.1 Review of Raman Spectroscopy Raman spectroscopy is a ... components However, Raman spectroscopy and chemometric analysis are not typically used for the examination of this material Raman spectroscopy is a popular tool for the chemical analysis of pigmented ... DISCRIMINATION OF COLOR COPIER /LASER PRINTER TONERS BY RAMAN SPECTROSCOPY AND SUBSEQUENT CHEMOMETRIC ANALYSIS A Thesis Submitted to the Faculty of Purdue University by Jeanna Marie Feldmann...

Ngày tải lên: 24/08/2014, 11:52

... ROLE OF STAT3 IN OSTEOCLAST MEDIATED BONE RESORPTION A Thesis Submitted to the Faculty of Purdue University by Evan Himes In Partial Fulfillment of the Requirements for the Degree of Master of ... Destruction of the bone matrix by the osteoclasts begins after activation and is explained below Reversal begins after the death of the osteoclasts The bone is covered by a variety of cells during ... another measure of strength and is the slope of the initial linear part of the stress vs strain curve (Figure 3) This is also referred to as the elastic part of the curve since the removal of force...

Ngày tải lên: 24/08/2014, 12:40

... Disclaimer Title of Thesis/Dissertation: Instrumental and Chemometric Analysis of Automotive Clear Coat Paints by Micro Laser Raman and UV Microspectrophotometry For the degree of Master of Science ... 2.1 Review of Raman Spectroscopy Raman spectroscopy is a vibrational spectroscopic technique, as is infrared spectrophotometry However, while IR deals with absorption of radiation, Raman measures ... using Excel 2007 (Microsoft Corporation, Redmond WA) This was accomplished by dividing the intensity values at each wavelength by the square root of the sum of squares of all of that replicate’s...

Ngày tải lên: 24/08/2014, 13:44

... name of laser normally follows that of the active medium used such as Nd:YAG laser, CO2 laser etc By using an excitation mechanism, most commonly in the form of optical, electrical or 37 chemical, ... 2.3.1 Introduction The first laser was a pulsed ruby laser of 0.694 µm wavelength developed by Theodore H Maiman of Hughes Aircraft Corporation in 1960 In dentistry, laser research, according to ... Concentration profile Concentration profile Concentration profile Concentration profile x 10-10 x 10-13 x 10-11 2.4 x 10-12 10-9 –10-11 Concentration Profile Concentration Profile Concentration Profile...

Ngày tải lên: 12/09/2015, 09:55

... non-equilibrium nature of the ablation process itself due to absorption of high laser energy density by a small volume 23 of material For low laser fluence and low absorption at the wavelength, the laser pulse ... orientation by the method of pulsed laser deposition (PLD); investigate the growth mechanism of high quality MgO films on silicon Fabricate highly oriented CoFe2O4 films on silicon with the help of MgO ... field None of this would be possible without their love and concern Table of Contents Page Acknowledgement i Table of Contents iii Summary vi List of Publications viii List of Tables x List of Figures...

Ngày tải lên: 07/10/2015, 10:10

... decrease of the magnitude of peak (200) and a raise of peak (001) Moreover, peak (020) is shown obviously in the case of 250 nm When the ITO layer have a thickness about 300 nm, a growth of WO3 ... does and because of the heteroepitaxial growth of films WO3 in which the parameters of plane ITO (440) are slightly larger than the ones of WO3 planes The relation between shifts of XRD peaks and ... XRD and Raman spectrum investigations Beside that, from XRD patter, the grain size of WO3 film were determined by Scherrer equation and all of them valued in 30 nm to 35 nm 3.2 Micro – Raman Studies...

Ngày tải lên: 13/02/2014, 03:20

... per mg of protein at optimum conditions) [18] Energy of activation (Ea) was determined by the slope (–Ea/2.3R, where R is the gas constant) of Arrhenius plots obtained by plotting logarithm of maximum ... protonation of the amine groups of samples The number of equivalents of acid groups was calculated using the formula: [NH3+] (mequiÆkg)1) ¼ 1000 · molarity (moles/L) · volume of titrant (mL)/mass of sample ... of chito-oligomers as one of the products and a drastic decrease in molecular mass of chitosan indicates an endo-type activity of pronase Addition of hexosaminidase (specific for the release of...

Ngày tải lên: 19/02/2014, 12:20