raman study of the relationship between

Analysis of pyrolysis gas by Raman spectrometry

Abstract: Six major components(CH 4,C 2 H 4,C 2 H 6,C 3 H 6,C 3 H 8,H 2) in pyrolysis gas were analyzed by means of laser Raman spectrometry. The effects of spectral pretreatment with four different smoothnesses(0,1,3,5) on the Raman analysis results were investigated and the pretreatment with smoothness 1 was the optimal.

Experimental and Theoretical Study of the Raman Spectra

The Raman spectra of ammonium thiosulfate solution have been experimentally measured and several typical Raman peaks of S2o32 − in ammonium thiosulfate solution were observed. We found that there is a linear relationship between the concentration of S2o32 − and the corresponding intensity and area of the Raman peaks. To study the possible effect of intermolecular hydrogen bonds on the

Polarization effects in Raman spectroscopy of

Our polarization study also demonstrates that the major peaks in Raman spectra of LAC are due to totally symmetric vibrations as their depolarization ratios (D p) are lower than 0.75. The O 2 and N 2 in the air of the Raman setup gave strongly polarized Raman signals that were used both for signal calibration and for certifying correct polarization properties of the Raman setup.

Relationship between Raman spectral pattern and crystallographic orientation of a rock

from the Raman spectral pattern of olivine. In this report, as a first step, we describe qualitative examination of the relationship between unpolarized Raman spectra and the crystal orientation of olivine of Fo# of 89.1, which is representative of Fo# of olivine, from

Study of the thermal behavior of syndiotactic and atactic polystyrene by Raman spectroscopy

Study of the thermal behavior of syndiotactic and atactic polystyrene by Raman spectroscopy N. Brun1, 2, P. Bourson1, S. Margueron1, M. Duc3 1 Laboratoire Matriaux Optiques Photonique et Systmes, SUPELEC, 2 rue Edouard Belin, 57070 Metz, France. 2 Total Petrochemicals France, Usine de Carling, BP 90290, 57508 St Avold.France.

Relationship Between School Climate and Teachers'

Arumugam Raman, Chang Chi Ling, Rozalina Khalid Abstract The aim of this study is to identify the relationship between school climate and teachers' commitment. This study focused on five excellent schools in the district of Kubang Pasu, Kedah.

Raman spectroscopy and low‐field nuclear magnetic

The objective of this study was to assess the relationship between protein conformations and water retention during gelation, investigated by Raman spectroscopy and low‐field nuclear magnetic resonance. There were significant positive correlations (p .05) between hydrophobic bonds (r = .690), disulfide bonds (r = .672), and cooking loss and a significant negative correlations (p .05

An Empirical Study on Raman Peak Fitting and Its

2017/8/7An Empirical Study on Raman Peak Fitting and Its Application to Raman Quantitative Research Show all authors Xueyin Yuan 1 The Relationship between Thermal Characteristics and Microstructure/Co Crossref Show details Also from SAGE Publishing

The structure of the kaolinite minerals — a FT

The Fourier transform Raman spectra of the kaolinite minerals have been measured in the 50–3800 cm −1 region using near infrared spectroscopy. Kaolinites are characterized by remarkably intense bands in the 120–145 cm −1 region. These bands, attributed to the

Purity and Defect Characterization of Single

However, the G/D ratio of the Laser sample was 2.4 times higher than that of the HiPco sample, while the G-band intensity of the Laser sample was only 0.7 times of that of the HiPco sample. In the previous study, a linear relationship between the G/D ratio and].

Solved: What Is The Relationship Between Raman

Question: What Is The Relationship Between Raman Cooling And Raman Scattering? Explain This Relation With Your Own Sentences Briefly And Simply. You Can Draw Diagram (s) If Necessary. What is the relationship between Raman cooling and Raman

Abstract: Raman Spectroscopy of Organic Material in Shales: Relationship

Raman Spectroscopy of Organic Material in Shales: Relationship to Thermal Maturity, Mechanical Properties, and Organic Matter Type Interpreted from SEM Images Zhengfan Liu1, Michael T. Myers1, Lori A. Hathon1, Jingting Li2, and Wei-Chuan Shih2 1 Department of Petroleum Engineering, University of Houston, Houston, TX, USA

A Raman study of the phase transition in hexa

Raman study of the phase transition in iVi(NH,),CI, 819 Tahle 1.Principal Raman frequencies (in cm- ') for NiHCl in the high- and low-temperature phases. - Mode in 0, T = 87K T=67K 130 (broad and weak) 269 - 375 - 1143 - 1585 3160 3250 3320 68 78 102 117

[PDF] Polarized Raman scattering study of kesterite

A non-destructive Raman spectroscopy has been widely used as a complimentary method to X-ray diffraction characterization of Cu2ZnSnS4 (CZTS) thin films, yet our knowledge of the Raman active fundamental modes in this material is far from complete. Focusing on polarized Raman spectroscopy provides important information about the relationship between Raman modes and CZTS crystal

(PDF) Study of the Raman peak shift and the linewidth of

By using Eqs.(2)-(4), we can calculate the Raman spectrum and determine the relationship between the peak shift and the peak width. The result is shown as a dashed line in Fig. 2. It is clear that the phonon confinement model does not totally correlate to the experimental results.The real structure of PS may be spongelike, i.e., it is composed of wires and/or dots of nonuniform dimensions.

[PDF] Polarized Raman scattering study of kesterite

A non-destructive Raman spectroscopy has been widely used as a complimentary method to X-ray diffraction characterization of Cu2ZnSnS4 (CZTS) thin films, yet our knowledge of the Raman active fundamental modes in this material is far from complete. Focusing on polarized Raman spectroscopy provides important information about the relationship between Raman modes and CZTS crystal

Raman spectroscopic study of the sulfite‐bearing minerals

The structures of the naturally occurring sulfite‐bearing minerals scotlandite, hannebachite and orschallite have been studied by Raman spectroscopy. Raman bands are observed for scotlandite PbSO3 at 935, 880, 622 and 474 cm−1 and are assigned to the (SO3)2−ν1(A1), ν3(E), ν2(A1) and ν4(E) vibrational modes, respectively. For hannebachite (CaSO3)2H2O these bands are observed at 1005

Relationship between mobility and Raman spectra for plasma

characteristics, (b) Raman spectrum for graphene channel on HTHP h-BN. Figure 2: Relationship between filed effect mobility for electron and I 2D /I G 5000 10000 15000 20000 25000 0 5 10 15 P on (cm 2 s) I 2D /I G 1000 1500 2000 2500 3000 (a.u.) cm 1) 2D

A study of the relationships between coal structures and

2018/2/15Guedes et al. used Raman spectroscopy to study the characteristic of collotelinite, fusinite and macrinite in the coals with V daf between 5% and 50%, and found that except for G and D bands, more weak additional bands at about 1190 cm −1, 1260 cm −1 −1

Solved: What Is The Relationship Between Raman

Question: What Is The Relationship Between Raman Cooling And Raman Scattering? Explain This Relation With Your Own Sentences Briefly And Simply. You Can Draw Diagram (s) If Necessary. What is the relationship between Raman cooling and Raman

[The study on linear relationship between concentration

1. Guang Pu Xue Yu Guang Pu Fen Xi. 2009 Jul;29(7):1889-91. [The study on linear relationship between concentration and surface-enhanced Raman spectroscopy (SERS) signal of thymine in improved Ag sol]. [Article in Chinese] Zhang L(1), Zhang YL, Zhang W

Analysis of pyrolysis gas by Raman spectrometry

Abstract: Six major components(CH 4,C 2 H 4,C 2 H 6,C 3 H 6,C 3 H 8,H 2) in pyrolysis gas were analyzed by means of laser Raman spectrometry. The effects of spectral pretreatment with four different smoothnesses(0,1,3,5) on the Raman analysis results were investigated and the pretreatment with smoothness 1 was the optimal.

A Raman spectroscopic study of selected minerals of

Anne M. Chaka, Ab Initio Thermodynamics and the Relationship between Octahedral Distortion, Raman spectroscopic study of the tellurite mineral: poughite Fe23+SO4(TeO3)23H2O—a multi‐anion mineral, Journal of Raman Spectroscopy, 10.1002/jrs.2037,

Relationship between Raman spectral pattern and

The relationship between Raman spectra and crystallographic orientation was examined for single crystals of Fo 89 Fa 11 olivine [(Mg 0.89 Fe 0.11) 2 SiO 4]. Raman spectra were obtained for chemically homogeneous olivine grains with various orientations on a thin section of mantle‐derived rock (dunite) using micro‐Raman equipment and an unpolarized exciting laser.

A particle

The experimentally measured reflectivities for stimulated Raman scattering (SRS) and simulated Brillouin scattering (SBS) have shown an inverse relationship for close to 20 years.(C. J. Walsh, D. M. Villeneuve, and H. A. Baldis, Phys. Rev. Lett. 53), 1445 (1984); D. S. Montgomery, et al., Phys. Plasmas 5, 1943 (1998). One explanation for this has been a detuning of the SRS matching condition

The Influence of Wire Speed on Phase Transitions and

In this paper, the relationship between Raman spectrum shift and the depth of the amorphous silicon layer and residual stress is established. Based on this relationship, the depth of the amorphous silicon layer and residual stress for silicon wafers sawn by a resin bonded diamond wire saw are obtained by measuring Raman spectroscopy.

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