... Videomaker Guide to Digital Video and DVD Production Digital8 Tape Direction Sub-Code Area Video Area Audio Area ITI Area Head Tracking Direction Figure 2.3 Time code, date and time, reside in ... take a head-to-head comparison between Mini DV and Digital8 q Picture quality Mini DV and Digital8 have nearly identical picture quality when used in camcorders with similar optics and CCDs However, ... Production In general, the main differences between standard and high grades of analog camcorders are image and audio quality High grade formats noticeably increase image resolution and audio fidelity...
Ngày tải lên: 01/06/2014, 11:26
... retrieve and disseminate administrative data that change on a regular basis to store, retrieve and disseminate books and articles in different languages Click on your answer Database management ... Information Systems), is a textual database management system designed to build and manage textual databases Database management systems - Textual databases and cds/isis basics – page What does ... Recherches Cidricoles ^mdriljf@inra.org Occurrence Database management systems - Textual databases and cds/isis basics – page Defining fields The fields and subfields may have variable length, and each...
Ngày tải lên: 31/03/2014, 20:20
Báo cáo hóa học: " Synthesis of Tapered CdS Nanobelts and CdSe Nanowires with Good Optical Property by Hydrogen-Assisted Thermal Evaporation" docx
... material Prior to heating, high-purity Ar was introduced into the quartz tube to purge the air inside for 60 After that, a carrier gas of high-purity Ar mixed with 5% H2 was kept flowing at a ... CdSe nanowires extruded from the liquid Au catalysts and precipitated at the liquid–solid interface In this process, a liquid cluster of metal catalyst provides energetically favored sites for ... nanobelts and CdSe nanowires were prepared by hydrogen-assisted thermal evaporation method Tapered CdS nanobelt growth process includes VLS mechanism in axial direction and vapor–solid mechanism in lateral...
Ngày tải lên: 22/06/2014, 00:20
Báo cáo hóa học: " Current–Voltage Characteristics in Individual Polypyrrole Nanotube, Poly(3,4-ethylenedioxythiophene) Nanowire, Polyaniline Nanotube, and CdS Nanorope" ppt
... voltage scale parameter V0 as shown in Table In addition, as shown in Fig 4b, the similar I V characteristics are also observed in single polyaniline nanotube with diameter about 120 nm with fitting ... electronic transport properties and the nonlinear I V characteristics in quasi-1D materials in accordance with 123 Fig a Typical TEM image of polyaniline nanotubes and b the corresponding I V characteristics ... K, indicating a lessening of nonlinearity in the I V characteristics as temperature increases It is about 160 K where linear component becomes dominant in this case The similar highly nonlinear...
Ngày tải lên: 22/06/2014, 01:20
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
... nonexponential decay can be neither due to Auger recombination, as the experiment is performed in a low excitation regime, nor to energy transfer, since similar relaxation dynamics were also obtained in ... relatively short temporal range studied in our experiments In light of these results we can associate the transitions | 1i and | 2i to carrier recombination from ± 1U and ± 1L states and the transition ... t1 and t2 are the typical carrier relaxation times from intrinsic bright states of the fine structure of spherical CdSe QDs [4] into the surface defect states [5], and t3 is comparable with typical...
Ngày tải lên: 22/06/2014, 18:20
Tài liệu Burning CDs and DVDs doc
... Profiler (in your Applications Utilities folder) Expand the Hardware triangle, and click the Disc Burning category There it is, plain as day: a list of the formats your machine can read and write ... window You can add, remove, reorganize, and rename the files on it just as you would in any standard Finder window All you're really doing is dragging aliases around; the real files are left untouched ... that it has that 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...
Ngày tải lên: 14/12/2013, 10:15
Tài liệu an analySiS of euro area Sovereign CDS anD their relation With government bonds docx
... namely - 0.005 For Italy, Ireland, Spain, Portugal and Greece is not significant and is significant and positive, implying that the derivatives market is leading in price discovery and the cash ... Although market information indicates growing volumes and active trading, potentially variable liquidity is certainly a major caveat in any analysis of market prices Our first main contribution ... not significant, meaning price discovery takes place into coefficient for Germany, the Netherlands and Austria is quite substantial and is approximately - 0.2; for France and Belgium it is smaller,...
Ngày tải lên: 16/02/2014, 02:20
Báo cáo " Sol-gel synthesis and particle size characterization of CdSe Quantum dots " ppt
... the peak width at half-maximum Particle sizes obtained from the width of the (111) diffraction are depicted in the table Table Particle size of samples with reaction time and 10 D (radian) 0,0697 ... JCPDS file No 19-0191) The sharp diffraction peaks also indicate that the products are highly crystalline XRD analysis revealed no impurities such as Se and SeO3 in the sample As expected, the width ... absorption in the visible region due to CdSe QDs is demonstrated The average diameters of the CdSe QDs for each growth time interval is estimated using the effective mass approximation 15 giving diameters...
Ngày tải lên: 14/03/2014, 13:20
Credit-risk valuation in the sovereign CDS and bonds markets: Evidence from the euro area crisis ppt
... Rocha da Farias, Francisco Rodríguez-Fernández, Gerald Dwyer, Richard Braun, Dante Amengual, Stefano Puddu, and seminar participants at CNMV; VI Seminar on Risk, Financial Stability, and Banking ... (counterparty, country-idiosyncratic, and global) and market frictions In particular, we find that the counterparty risk indicator has a negative and significant effect on the basis Funding costs have ... counterparty risk and the financing costs An increase equal to one standard deviation in any of the previous variables would diminish the relative basis in –0.7% Determinants of the basis TABLE...
Ngày tải lên: 15/03/2014, 07:20
Authoring and Generating Health-Education Documents That Are Tailored to the Needs of the Individual Patient doc
... producing health-information and patient-education material that is tailored to the personal and medical characteristics of the individual patient receiving it Information from an on-line medical ... medical condition Tailoring by medical condition entails choosing what to say and not say in the document, in accordance with the patient’s diagnosis, physical characteristics (such as age and ... Fortunately, in such clinical situations, much of the information that is needed for tailoring health-education material is available in the patient’s medical record Indeed, a medical record can...
Ngày tải lên: 22/03/2014, 15:21
energy relaxation in cdse nanocrystals the effects of morphology and film preparation
... reasonable signal to noise ratios Results and discussion Analysis of TEM images shown in Figs 1 (a) and 1(d) show average QD diameters of ~4.0 nm with a standard deviation of 7% and average QR diameters ... electronic relaxation helps determine materials’ device applicability For instance, semiconducting NCs show promise as both optical gain media [2] as well as photovoltaic [6–9] (PV) materials as a ... acoustic velocity in CdSe (1540 m/s) a is the QD radius, and S lm is a constant associated with boundary conditions The two dominant modes are the radial breathing mode and the ellipsoidal breathing...
Ngày tải lên: 06/05/2014, 08:53
ultrafast spectroscopy of cdse nanocrystals morphological and environmental effects on nonradiative and nonadiabatic relaxation
... cubic CdSe.16 Optical Characterization LA data for colloidal and thinfilm samples are shown in Figure 3A and B for the QDs and QRs, respectively In an attempt to directly compare intraband relaxation ... increased relaxation time in the QD thin-film samples is likely due to the partial removal of surface ligands It has been shown by Kambhampati that the organic ligands play an important role in ... potential photodegradation and charging.15 ■ RESULTS AND DISCUSSION Structural Characterization The TEM images of QDs and QRs are shown in Figure Upon analyzing the TEM images, the QD samples in Figure...
Ngày tải lên: 06/05/2014, 08:55
ultrafast spectroscopy of cdse nanocrystals morphological and environmental effects on nonradiative and nonadiabatic relaxation
... cubic CdSe.16 Optical Characterization LA data for colloidal and thinfilm samples are shown in Figure 3A and B for the QDs and QRs, respectively In an attempt to directly compare intraband relaxation ... increased relaxation time in the QD thin-film samples is likely due to the partial removal of surface ligands It has been shown by Kambhampati that the organic ligands play an important role in ... potential photodegradation and charging.15 ■ RESULTS AND DISCUSSION Structural Characterization The TEM images of QDs and QRs are shown in Figure Upon analyzing the TEM images, the QD samples in Figure...
Ngày tải lên: 06/05/2014, 08:58
synthesis and characterization of cdse-zns core-shell quantum dot
... and electrons is nonradiative, dissipating energy as heat and lattice vibrations instead of light Figure 3: Schematic of the p-n junction in a light emitting diode (LED) The bandgap of a semiconductor ... because the excitation wavelength can be anywhere within a broad range, making it easier to avoid excitation of background tissues, as well as simple separation of excitation and emission (Figure ... quantum dot by viewing it as a particle-in -a- box Brus developed an approximate relationship between the particle size and its resultant bandgap, based on the material being used and its bandgap...
Ngày tải lên: 15/05/2014, 10:25
Báo cáo hóa học: " Synthesis and highly visible-induced photocatalytic activity of CNT-CdSe composite for methylene blue solution" pdf
... photocatalytic activity toward the photodegradation of MB solution under visible-light irradiation Figure 10 shows the MWCNTs acting an electron acceptor for improving the photocatalytic activity ... CNT-CdSe composite is 0.05 g We can clearly see that the concentration of the MB solution gradually diminish with increasing irradiation time for all of samples After irradiation for 240 min, the CdSe ... SD, Mitra A, Padalkar SR, Mandale AB: A process for preparation of Q-CdSe thin films by liquid-liquid interface reaction technique Mater Lett 2000, 46:81-85 Colvin VL, Schlamp MC, Alivosatos AP:...
Ngày tải lên: 21/06/2014, 03:20
Báo cáo hóa học: " One-Pot Synthesis of Biocompatible CdSe/CdS Quantum Dots and Their Applications as Fluorescent Biological Labels" doc
... temperature and precipitated by ethyl acetate The resultant solid products were further purified by dialysis and ultrafiltration for cell imaging In Vitro Cell Viability and Cell Imaging Human embryonal ... the standard deviations Satisfactory (>80%) biocompatibility of as-synthesized PAA-capped QDs is achieved at a particle concentration below 15 μg Cd/mL in 293T cell lines No statistical difference ... good biocompatibility as biological labels, which is comparable with PEGylated nanoparticles [23] It turns out that the PAA modification during the “one-pot” synthesis is both simple and effective...
Ngày tải lên: 21/06/2014, 08:20
Báo cáo hóa học: " Field Emission Properties and Fabrication of CdS Nanotube Arrays" pot
... F-4500), and X-ray diffraction (XRD) The XRD patterns are recorded with a Japan Rigaku D/max-2500 rotation anode X-ray diffractometer equipped with graphite-monochromatized ˚ Cu Ka radiation (k ... determined by fitting the slope value and taking a reasonable value For those CdS nanotube arrays, the F–N plots (Fig 5b) show a linear relationship, implying that a quantum-tunneling mechanism is ... performed Figure 4a is a typical TEM image of CdS nanotube arrays (sample A) The nanotubes are uniform with an external diameter of about 166 nm and length of about 1.5 lm Figure 4b shows a TEM image...
Ngày tải lên: 22/06/2014, 00:20
Báo cáo hóa học: " CdSe Ring- and Tribulus-Shaped Nanocrystals: Controlled Synthesis, Growth Mechanism, and Photoluminescence Properties" potx
... in sample I and three in sample II, and two in sample III (based on a total of 20 TEM images of sample I, II, and III, respectively) As mentioned in the introduction segment, the PL properties ... random arrangement particles A1 , A2 , A3 , and two oriented attachment branches A4 and A5 Figure 5d, the magnification of section A in Fig 5c, displays them clearly Thereinto, the branches A4 and ... tribulus-shaped nanoparticle; d magnification of the section A in (c) exhibiting three random arrangement particles A1 , A2 , A3 and two oriented attachment branches A4 (\11-20[ direction) and A5 (\0001[...
Ngày tải lên: 22/06/2014, 01:20
Báo cáo hóa học: " Synthesis, Optical Properties, and Photocatalytic Activity of One-Dimensional CdS@ZnS Core-Shell Nanocomposites" pdf
... ZnS nanoparticles with a diameter of ca nm, anchoring on the surface of CdS nanowires without any surface pretreatment or functionalization The optical properties and photocatalytic activities ... core-shell nanocomposites (k [ 420 nm) MB was used as a test contaminant since it has been extensively used as an indicator for the photocatalytic activities [43, 44] And its degradation can be easily ... further investigated using TEM, HRTEM, ED, and EDS techniques TEM image of neat CdS nanowires with smooth surface are shown in Fig 3a, and a high-magnified TEM image of the marked region in Fig 3a shows...
Ngày tải lên: 22/06/2014, 01:20
Báo cáo hóa học: " Excitonic Transitions and Off-resonant Optical Limiting in CdS Quantum Dots Stabilized in a Synthetic Glue Matrix" pptx
... known to be attractive candidate materials for optical limiting Optical limiters are devices which have constant transmittance at low input fluences and a decrease in transmittance at high fluences ... nm stabilized in a synthetic glue matrix The samples are free standing films with good optical quality and photostability The excitonic transitions are studied using optical and photoacoustic spectroscopy ... differences in transitions calculated as shown in Table eliminates effective masses me and mh and nanocrystal radius R The theoretical ratios are then compared with ratios obtained experimentally (Table...
Ngày tải lên: 22/06/2014, 18:20