scholarly journals An X-ray Powder Pattern Analysis Program for Imaging Plate.

1999 ◽  
Vol 9 (1) ◽  
pp. 65-70 ◽  
Author(s):  
Hiroshi FUJIHISA
Keyword(s):  
Pattern Analysis ◽  
Powder Pattern ◽  
Imaging Plate ◽  
Analysis Program ◽  
X Ray

scholarly journals Oxidation of Cyclohexane to Cylohexanol and Cyclohexanone Over H4[a-SiW12O40]/TiO2 Catalyst

2018 ◽  
Vol 16 (2) ◽  
pp. 175 ◽  
Author(s):  
Aldes Lesbani ◽  
Fatmawati Fatmawati ◽  
Risfidian Mohadi ◽  
Najma Annuria Fithri ◽  
Dedi Rohendi
Keyword(s):  
Hydrogen Peroxide ◽  
Ftir Spectroscopy ◽  
Mild Condition ◽  
Heterogeneous System ◽  
Pattern Analysis ◽  
Major Product ◽  
Ftir Spectrum ◽  
Powder Pattern ◽  
X Ray ◽  
Tio2 Catalyst

Oxidation of cyclohexane to cyclohexanol and cyclohexanone was carried out using H4[a-SiW12O40]/TiO2 as catalyst. In the first experiment, catalyst H4[a-SiW12O40]/TiO2 was synthesized and characterized using FTIR spectroscopy and X-Ray analysis. In the second experiment, catalyst H4[a-SiW12O40]/TiO2 was applied for conversion of cyclohexane. The conversion of cyclohexane was monitored using GC and GCMS. The results showed that H4[a-SiW12O40]/TiO2 was successfully synthesized using 1 g of H4[a-SiW12O40] and 0.5 g of TiO2. The FTIR spectrum showed vibration of H4[a-SiW12O40] appeared at 771-979 cm-1 and TiO2 at 520-680 cm-1. The XRD powder pattern analysis indicated that crystallinity of catalyst still remained after impregnation to form H4[a-SiW12O40]/TiO2. The H4[a-SiW12O40]/TiO2 catalyst was used for oxidation of cyclohexane in heterogeneous system under mild condition at 2 h, 70 °C, 0.038 g catalyst, and 3 mL hydrogen peroxide to give cyclohexanone as major product.

X-ray powder pattern analysis of cytoplasmic polyhedrosis virus inclusion bodies

Virology ◽  
1991 ◽  
Vol 180 (1) ◽  
pp. 153-158 ◽  
Author(s):  
Di Xia ◽  
Sun Yu-Kun ◽  
Malcolm A. McCrae ◽  
Michael G. Rossmann
Keyword(s):  
Inclusion Bodies ◽  
Pattern Analysis ◽  
Powder Pattern ◽  
Cytoplasmic Polyhedrosis Virus ◽  
X Ray ◽  
Polyhedrosis Virus

Estimation of the noise in TEM image recorded on “imaging plate”

1987 ◽  
Vol 45 ◽  
pp. 748-749
Author(s):  
T. Oikawa ◽  
N. Mori ◽  
T. Katoh ◽  
Y. Harada ◽  
J. Miyahara ◽  
...  
Keyword(s):  
Low Dose ◽  
Quantum Noise ◽  
Laser Light ◽  
Imaging Plate ◽  
Total System ◽  
Electron Dose ◽  
X Ray ◽  
Image Recording ◽  
Recording Material ◽  
Highly Sensitive

The “Imaging Plate”(IP) is a highly sensitive image recording plate for X-ray radiography. It has been ascertained that the IP has superior properties and high practicability as an image recording material in a TEM. The sensitivity, one of the properties, is about 3 orders higher than that of conventional photo film. The IP is expected to be applied to low dose techniques. In this paper, an estimation of the quantum noise on the TEM image which appears in case of low electron dose on the IP is reported.In this experiment, the JEM-2000FX TEM and an IP having the same size as photo film were used.Figure 1 shows the schematic diagram of the total system including the TEM used in this experiment. In the reader, He-Ne laser light is scanned across the IP, then blue light is emitted from the IP.

Use of TALP with laboratory powder diffraction data from 2D detectors

2013 ◽  
Vol 28 (S2) ◽  
pp. S481-S490
Author(s):  
Oriol Vallcorba ◽  
Anna Crespi ◽  
Jordi Rius ◽  
Carles Miravitlles
Keyword(s):  
Organic Compounds ◽  
Structural Study ◽  
Powder Diffraction ◽  
Diffraction Data ◽  
Powder Pattern ◽  
Experimental Setup ◽  
Intensity Data ◽  
Powder Diffraction Data ◽  
X Ray ◽  
Molecular Compounds

The viability of the direct-space strategy TALP (Vallcorba et al., 2012b) to solve crystal structures of molecular compounds from laboratory powder diffraction data is shown. The procedure exploits the accurate metric refined from a ‘Bragg-Brentano’ powder pattern to extract later the intensity data from a second ‘texture-free’ powder pattern with the DAJUST software (Vallcorba et al., 2012a). The experimental setup for collecting this second pattern consists of a circularly collimated X-ray beam and a 2D detector. The sample is placed between two thin Mylar® foils, which reduces or even eliminates preferred orientation. With the combination of the DAJUST and TALP software a preliminary but rigorous structural study of organic compounds can be carried out at the laboratory level. In addition, the time-consuming filling of capillaries with diameters thinner than 0.3mm is avoided.

Structure refinements of Pb2+ ion-exchanged apatites by x-ray powder pattern-fitting

1986 ◽  
Vol 61 (2) ◽  
pp. 230-235 ◽  
Author(s):  
Michihiro Miyake ◽  
Kyoichi Ishigaki ◽  
Takashi Suzuki
Keyword(s):  
Powder Pattern ◽  
X Ray
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