Báo cáo vật lý: "TEMPERATURE DEPENDENCE OF RAMAN SPECTRA OF POROUS GAP" docx

... Line-width Raman Line-width (cm –1 ) Figure 5: Temperature dependence of line-width of LO phonon. Temperature Dependence of Raman Spectra 56 Table 3: Parameters used for temperature dependence ... Anharmonic decay of optical phonons. Phys. Rev., 148, 845–848. Temperature Dependence of Raman Spectra 52 Figure 2: Schematic diagram of LIE process....

Ngày tải lên: 07/08/2014, 14:20

... Analysis The CTE of the DCN/SS composites is shown in Figure 1. Note that the CTE of all of the DCN/SS composites is lower than that of the DCNs. It can be observed that the CTE of the DCN/SS ... increased. The shifting is due to the depression of T g as the content of the SS50 diffusant increases. Table 3 shows the T g of the DCN and of the various DCN/SS50 compos...

Ngày tải lên: 07/08/2014, 14:20

... Yield of organics from pyrolysis of a range of feedstocks from different source 6.4 1.0 kg/h Reactor Figure 9 shows the schematic diagram of the 1 kg/h fluidized bed reactor consisting of ... content of 1.03 mf wt%, produced the organics yield of 61.34 mf wt% while organics yield of poplar aspen is 58.9 mf wt%. Figure 8 illustrates the yield of organics from pyr...

Ngày tải lên: 07/08/2014, 14:20

... bark of these species. The structures of these compounds were derived based on the analysis of the UV, IR, MS and NMR, including 1D and 2D NMR ( 1 H- 1 H COSY, HMQC, HMBC and NOESY) spectra. ... as hydroxyl radical scavenger was due to the existence of phenol ring, stability of molecular structure and existence of double bonds of olefinic unit. Phenol ring can trap hydroxy...

Ngày tải lên: 07/08/2014, 14:20

... mesoporous structured material (Fig. 2). Studies of mesoporous pore structure are always linked to isotherm type IV. One characteristic of isotherm type IV is the hysteresis loop. The shape of ... catalyst properties of Nafion resin with the high surface area characteristic of silica as a porous support. Nitrogen gas adsorption- desorption showed that the surface area of Nafi...

Ngày tải lên: 07/08/2014, 14:20

... Experimental Data of Viscosity and Temperature to Investigate the Reliability of E a in Indicating the Stability of Viscosity – Temperature Relation The reliability of the E a in indicating ... Journal of Physical Science, Vol. 21(1), 29–39, 2010 29 The Hidden Property of Arrhenius-type Relationship: Viscosity as a Function of Temperature Sunny Goh Eng Giap Dep...

Ngày tải lên: 07/08/2014, 14:20

... author(s), title of the book, name of publisher, place of publication, page number and year of publication. Journal of Physical Science, Vol. 19(2), 137–141, 2008 137 Effect of Temperature ... name(s) of author(s), title of article, title of the periodical, volume/issue number, page number and year of publication. 7. References to books should include initial(s)...

Ngày tải lên: 07/08/2014, 14:20

... through Raman and infrared spectra. Hence a theoretical evaluation of phonon frequencies of high temperature superconductors assumes importance. The Fourier transform Raman spectra of Bi 2 Sr 2 Ca 2 Cu 3 O 10 ... [27 –31]. Raman spectra of ceramic BiSrCaCuO superconductors containing different phases other than 2122 have also been reported. Of these, Sapriel et al. [3...

Ngày tải lên: 07/08/2014, 14:20

... the intercepts and slopes of the lower and upper baselines of the melting curves, respectively; T is the temperature of interest in Kelvin, a is the molar fraction of strands in the coiled state ... Enthalpy and heat capacity changes for formation of an oligomeric DNA duplex: interpretation in terms of coupled pro- cesses of formation and association of single-stranded helices...

Ngày tải lên: 22/02/2014, 07:20

... improve the performance of the Se nanowires optoelectronic devi- ces, well understanding of the photoelectrical properties is desirable. Measurement of the temperature dependence of photoconductivity ... 400 Intensity (a.u.) Raman shift (cm -1 ) (b) 500 600 700 800 900 Intensity (a.u.) Wavelen g th (nm) (c) (a) (d) Fig. 1 a SEM image of the Se nanowires. b Raman spectrum of...

Ngày tải lên: 21/06/2014, 18:20