pbs and itvs fertile soil for independent videographers

the videomaker guide to digital video and dvd production

Ngày tải lên : 01/06/2014, 11:26

... I Altfeld 293 60 PBS and ITVS: Fertile Soil for Independent Videographers Alessia Cowee 298 61 Paths to Broadcast Television Mark Bosko 304 62 Promotion Strategies: Fame and Fortune on a Budget ... between standard and high grades of analog camcorders are image and audio quality High grade formats noticeably increase image resolution and audio fidelity over standard grade The digital formats ... of video for luminance (brightness) and chrominance (color) information taking four pixel samples of luma information (Y) for every one pixel sample it takes of chroma information (U and V) Express...

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Information Management Resource Kit Module on Management of Electronic DocumentsUNIT 5. DATABASE MANAGEMENT SYSTEMS LESSON 6. TEXTUAL DATABASES AND CDS/ISIS BASICSNOTE Please note that this PDF version does not have the interactive features offered th doc

Ngày tải lên : 31/03/2014, 20:20

... ISIS formatting language For example, let’s look at some ways the following data can be displayed: 10: Of war and peace 20: ^aTolstoy^bLeo The format: Will result in: Because: v10 Of war and peace ... used for developing and managing free-structured textual databases and can be tailored for different applications • The system manages: - the structure of textual databases, - text-oriented formatting, ... made, and not all involve the same amount of work To better understand these capabilities and the work required, let’s design a CDS/ISIS database Database management systems - Textual databases and...

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Báo cáo hóa học: " Synthesis of Tapered CdS Nanobelts and CdSe Nanowires with Good Optical Property by Hydrogen-Assisted Thermal Evaporation" docx

Ngày tải lên : 22/06/2014, 00:20

... (CdSe) and H2 forms H2S (H2Se) gas and Cd gas, which are transported to deposition zone with lower temperature where they react with each other and form CdS (CdSe) and H2 After heating for 40 ... exhausts and most CdSe remains, which means the reaction between CdS and H2 is rapid while the one between CdSe and H2 is slow The presence of Au particle on the tip of CdS nanobelt (Fig 2a) and CdSe ... nanoparticle and CdS, i.e., the tapered CdS nanobelts form 123 1168 Fig SEM images of tapered CdS nanobelts (a) and CdSe nanowires (b), respectively XRD patterns of tapered CdS nanobelts (c) and CdSe...

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Báo cáo hóa học: " Current–Voltage Characteristics in Individual Polypyrrole Nanotube, Poly(3,4-ethylenedioxythiophene) Nanowire, Polyaniline Nanotube, and CdS Nanorope" ppt

Ngày tải lên : 22/06/2014, 01:20

... I–V data and fitting curves emerge in low-field region at low temperatures, which have not been reported and discussed According to the theory developed by Pollak, Efros, and Schklovskii and coworkers ... polypyrrole, and PEDOT nanotubes/wires have indicated that the quasi-1D nanostructures are composed of crystalline regions and amorphous regions [6, 31, 32], and the EEI may be enhanced and dominate ... ropes and b the corresponding I–V characteristics with fitting curves to Eq from 200 down to 60 K me jðEb Þ ¼ 8p " h Z1 de Dðe; Eb Þ Hðe; Eb Þ ð2Þ À1 where m and e are the carrier mass and energy,...

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Báo cáo hóa học: " The Role of Intrinsic and Surface States on the Emission Properties of Colloidal CdSe and CdSe/ZnS Quantum Dots Giovanni Morello Æ Marco Anni Æ Pantaleo Davide Cozzoli " potx

Ngày tải lên : 22/06/2014, 18:20

... the three states, E1,2 and E2,3 We found E1,2 = 21 meV and E2,3 = 16 meV for core QDs and E1,2 = 21 meV and E2,3 = 13 meV for core/shell QDs The PL time decay for core and core/shell samples ... |1i and |2i to carrier recombination from ± 1U and ± 1L states and the transition |3i to a surface states emission By analysing the temperature dependence of the PL intensities I1, I2 and I3 for ... theoretical I1, I2 and I3, we have extracted the energetic separations among the three states DE1,2 and DE2,3 We found DE1,2 = 20 ± meV and DE2,3 = 16.5 ± 0.3 meV for CdSe QDs, DE1,2 = 20 ± meV and DE2,3...

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Tài liệu Burning CDs and DVDs doc

Ngày tải lên : 14/12/2013, 10:15

... burn-folder concept has a lot going for it: • No wasted hard drive space Using the old system of burning discs, you inserted the blank and then dragged files and folders onto its icon The Mac duplicated ... folders' contents, and you're saved the effort of having to gather them each time Prepare ahead of time You can get a CD or DVD ready to burn without having a blank disc on hand Here's how you ... radioactive logo on it You can drag files and folders right into its window; Mac OS X displays only aliases for now, but when you burn the disc, the actual files and folders will be there If you open...

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Tài liệu an analySiS of euro area Sovereign CDS anD their relation With government bonds docx

Ngày tải lên : 16/02/2014, 02:20

... coefficient for Germany, the Netherlands and Austria is quite substantial and is approximately - 0.2; for France and Belgium it is smaller, namely - 0.005 For Italy, Ireland, Spain, Portugal and Greece ... test statistics for CDS and bond spreads, all country pairs are cointegrated in the second part of our sample For Germany, France, the Netherlands, Austria and Belgium significant and has a negative ... not significant and is significant and positive, implying that the derivatives market is leading in price discovery and the cash market adjusts The coefficients for Italy and Ireland are approximately...

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Báo cáo " Sol-gel synthesis and particle size characterization of CdSe Quantum dots " ppt

Ngày tải lên : 14/03/2014, 13:20

... of QDs From this formula, the standard curve and measured absorption spectra, we can estimate the mean size of QDs Based on the analysis it has been expressed the experimental formula to estimate ... Cd:Se ratio and the reaction temperature Acknowledgements The authors express the sincere thanks to the NAFOSTED under Grant number of 103.03.93.09 and Ministerial-level project of MOET for the financial ... spectrophotometer Result and discussion To calculate the particle size of QDs we use some following models: + Using absorption spectra to estimate the mean sizes of QDs: The Effros, Brus and Kayanuma’s...

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Credit-risk valuation in the sovereign CDS and bonds markets: Evidence from the euro area crisis ppt

Ngày tải lên : 15/03/2014, 07:20

... spread was bp for both France and The Netherlands, and the highest average was 25 bp for Greece For the period 2009-2011, the lowest annual average CDS spread was 31 bp for Finland in 2010 and the ... substantially across countries and periods For the period 2004-2008, the lowest average CDS spread was basis points (bp) for Germany and the highest one was 23 bp points for Greece For the same period, ... significant exceptions are Ireland and Portugal in 2011 and Greece in 2009 and 2010) Also, we observe an increase in both the average and the volatility of CDS and bond spreads over the subsequent...

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Authoring and Generating Health-Education Documents That Are Tailored to the Needs of the Individual Patient doc

Ngày tải lên : 22/03/2014, 15:21

... situation, and the information must generally be presented on paper for the patient to refer to later Fortunately, in such clinical situations, much of the information that is needed for tailoring ... appropriate for both the content and form of a patient’s brochure This method is straightforward, but it requires that an extremely large number of bits and pieces of text be available; Strecher and ... Selections from this document are made for both content and form, as in the text-snippet approach, but are automatically post-edited—‘repaired’— for form, style, and coherence We will discuss the...

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energy relaxation in cdse nanocrystals the effects of morphology and film preparation

Ngày tải lên : 06/05/2014, 08:53

... TA signal [1] For the QD and QR sample, the intraband relaxation times were approximately 700 fs and 1100 fs for the QD and QR respectively The increase in intraband relaxation for the QR sample ... Fourier transforms of the B1 probe signals, and the results for the QD and QR samples are shown in Figs 4(a) and 4(b) respectively Fig Fourier transform of B1 probes for the QD (a) and QR (b) samples ... NCs [3,4] Furthermore, others have compared QD and QR samples in colloidal form, measuring intraband relaxations of 400 fs and 1000 fs for QDs and QRs respectively [5] However, the samples presented...

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ultrafast spectroscopy of cdse nanocrystals morphological and environmental effects on nonradiative and nonadiabatic relaxation

Ngày tải lên : 06/05/2014, 08:55

... capping ligands: octadecanephosphonic acid (ODPA), trioctylphosphine oxide (TOPO), and oleylamine for the nm diameter sample; ODPA and TOPO for the nm diameter sample; and 2-octenoic acid for the ... conduction band (CB) followed by intraband relaxation to the band edge Presented in Figure 5A and B are the results of the TA rise time studies for the colloidal QDs and QRs, respectively Figure 5C and ... time traces for colloidal QD and QR samples, respectively (C,D) Rise time data comparison for QD and QR colloidal and thin-ﬁlm samples with respect to the respective probe energies and NC volume,...

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ultrafast spectroscopy of cdse nanocrystals morphological and environmental effects on nonradiative and nonadiabatic relaxation

Ngày tải lên : 06/05/2014, 08:58

... capping ligands: octadecanephosphonic acid (ODPA), trioctylphosphine oxide (TOPO), and oleylamine for the nm diameter sample; ODPA and TOPO for the nm diameter sample; and 2-octenoic acid for the ... conduction band (CB) followed by intraband relaxation to the band edge Presented in Figure 5A and B are the results of the TA rise time studies for the colloidal QDs and QRs, respectively Figure 5C and ... time traces for colloidal QD and QR samples, respectively (C,D) Rise time data comparison for QD and QR colloidal and thin-ﬁlm samples with respect to the respective probe energies and NC volume,...

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synthesis and characterization of cdse-zns core-shell quantum dot

Ngày tải lên : 15/05/2014, 10:25

... with ODE and test PLQY Precipitate and resuspend in chloroform Uncoated CdSe QDs Dilute with ODE and test PLQY Precipitate and resuspend in chloroform Evaporate chloroform Evaporate chloroform Dissolve ... of the valence and conduction bands between the core and shell (Figure 19).14 Figure 19: Band (valence and conduction bands) alignment of different core-shell systems The first and most common ... between the particle size and its resultant bandgap, based on the material being used and its bandgap in the bulk form (Equation 1).9 In the equation, EgQD is the theoretical bandgap of the quantum...

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Báo cáo hóa học: " Synthesis and highly visible-induced photocatalytic activity of CNT-CdSe composite for methylene blue solution" pdf

Ngày tải lên : 21/06/2014, 03:20

... and the mixture was stirred till it dissolved completely to form Cd(NH3)42 + solution Finally, Cd(NH3)42+ and Na2SeSO3 solutions were mixed together and the mixture was stirred and refluxed for ... (Na2SeSO3) solution and Cd(NH3)42+ solution was prepared at first Na2SO3 (5 g) and selenium metal powder (0.5 g) were dissolved in 30-mL distilled water and refluxed for h to form Na2SeSO3 solution ... αhv = A(hv − Eg )1/2 (a) where a, v, Eg, and A are the absorption coefficient, light frequency, band gap, and a constant, respectively Therefore, the band gap energy (Eg) of CdSe compound can...

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Báo cáo hóa học: " One-Pot Synthesis of Biocompatible CdSe/CdS Quantum Dots and Their Applications as Fluorescent Biological Labels" doc

Ngày tải lên : 21/06/2014, 08:20

... After 24-h labeling and washing, 20 μL of a solution of MTT (5 mg/mL in PBS) was added to each well, and assay was performed at specific time intervals The absorbance of the formazen product was ... reaction for h, the solution was quickly cooled to room temperature and precipitated by ethyl acetate The resultant solid products were further purified by dialysis and ultrafiltration for cell ... was cooled to room temperature, and 19 mg of Se powder was added Finally, the mixture was heated to 240°C and kept for a certain period of time such as 1, 5, 60, and 120 Synthesis of CdSe/CdS QDs...

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Báo cáo hóa học: " Field Emission Properties and Fabrication of CdS Nanotube Arrays" pot

Ngày tải lên : 22/06/2014, 00:20

... n, and c are obtained as 0.9, 3.7, and 6, for the best ﬁt to the experimental datum Using these parameters, we get three simulating values of bsim for samples A, B, and C, which are 273, 359, and ... Eto and Eth for promising candidate materials on ﬁeld emitters and nanodevices Acknowledgments This work was supported by the National Nature Science Foundation of China (20531060, 20473102, and ... decreases Eth for samples A, B, and C are 14.92, 13.44, and 11.27 V/lm, respectively The maximum emission density of sample A is 3.9 mA/cm2, which is higher than that of sample B (3.28 mA/cm2) and C...

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Báo cáo hóa học: " CdSe Ring- and Tribulus-Shaped Nanocrystals: Controlled Synthesis, Growth Mechanism, and Photoluminescence Properties" potx

Ngày tải lên : 22/06/2014, 01:20

... solution and stirred for h The products were ﬁltered and washed with distilled water and ethanol for ﬁve times, respectively Finally, the orange product powder was dried at 60 °C for h in air oven and ... driving force for aggregation of nanoparticles can be generally attributed to the tendency for reducing the high surface energy through the attachment among the primary nanoparticles and the formation ... particles and the subsequent growth via their aggregation The aggregation includes random and oriented aggregation [27] Firstly, the ‘‘core’’ of tribulus-shaped nanoparticle is formed by the random...

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Báo cáo hóa học: " Synthesis, Optical Properties, and Photocatalytic Activity of One-Dimensional CdS@ZnS Core-Shell Nanocomposites" pdf

Ngày tải lên : 22/06/2014, 01:20

... room temperature naturally, and the resulting solid products were collected, washed with absolute ethanol and distilled water for twice, and then dried in vacuum at 70 °C for h Characterization The ... autoclave was maintained at 180 °C for 24 h and then allowed to cool to room temperature A yellowish precipitate was collected and washed with absolute ethanol and distilled water to remove residue ... ZnS has a wider band gap (Eg = 3.7 eV) than CdS The surface modiﬁcation of a wide band gap semiconducting shell around a narrow band gap core can alter the charge, functionality, and reactivity...

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Báo cáo hóa học: " Excitonic Transitions and Off-resonant Optical Limiting in CdS Quantum Dots Stabilized in a Synthetic Glue Matrix" pptx

Ngày tải lên : 22/06/2014, 18:20

... theoretical ratios and experimental ratios agree well if we assign the first four bands observed in PAS to 1se–1sh (band E1), 1pe–1ph (band E2), 1de–1dh (band E3) and 2pe–2ph (band E4) Optical Limiting ... spectroscopy and analyzed in detail using noninteracting particle model We assign the first four bands observed in PAS to 1se–1sh (band E1), 1pe–1ph (band E2), 1de–1dh (band E3) and 2pe–2ph (band E4) ... line shape The analysis yields four peaks at 2.69 eV (denoted as E1 band), 2.81 eV (E2 band), 2.96 eV (E3 band) and 3.21 eV (E4 band) The full width at half maximum (FWHM) of first excitonic transition...

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