نتایج جستجو برای: spectroscopic technique

تعداد نتایج: 654386  

Journal: :Monthly Notices of the Royal Astronomical Society 2021

We describe the application of Semantic Segmentation by using Self Organizing Map technique to an high spatial and spectral resolution dataset acquired along H$\alpha$ line at 656.28 nm Interferometric Bi-dimensional Spectrometer installed focus plane Dunn Solar Telescope. This machine learning approach allowed us identify several features corresponding main structures solar photosphere chromos...

Journal: :molecular biology research communications 2015
reza yousefi asghar taheri-kafrani sayed masoud nabavizadeh zahra pouryasin mohammad bagher shahsavani

the interactions between platinum complexes and human serum albumin (hsa) play crucial roles in the distribution, metabolism, and activity of platinum-based anticancer drugs. octahedral platinum (iv) complexes represent a significant class of anticancer agents that display molecular pharmacological properties different from cisplatin. in this study, the interaction between two pt(iv) complexes ...

Seven reported xanthate ligands and their new Fe(II) complexes of formulaNa[Fe(R-OCSS)3], where R is ethyl-, propyl-, butyl-, pentyl-, Hexyl-, heptyl- and octyl-xanthate have been synthesized. They have been characterized using elemental analysis, molar conductance, FT-IR, UV-Vis and 1H NMR spectroscopic techniques and melting-, decomposition-points for ligand...

Biswajit Mukherjee Pintu Kumar De Sagar Sengupta Satyanarayan Pattnaik, Subrata Chakraborty Subrata Mallick

The present study was undertaken to develop a suitable transdermal matrix patch of ketorolac tromethamine with different proportions of polyvinyl pyrrolidone (PVP) and ethyl cellulose (EC) using a D-optimal mixture design. The prepared transdermal patches were subjected to different physicochemical evaluation. The surface topography of the patches was examined by scanning electron microscopy (S...

Isolated five known iridoids glycosides (Scrophuloside A, Harpagoside B, 5-hydroxyloganin, 8-O-acetylharpagide and 6-O-methyl,1-glucopyranosyl catalpol ),one phenyl ethanoid glycoside (Verbascoside) and a phenyl ethanol amine (2-(4-Chlorobenzyl amino) ethanol ) compound from the methanolic extract of aerial parts of Scrophularia oxysepala using by high performance liquid chromatography based on...

2015
Juliette C. Becker John Asher Johnson Andrew Vanderburg Timothy D. Morton

We present a technique to extract radial velocity (RV) measurements from echelle spectrograph observations of rapidly rotating stars (  V i sin 50 km s). This type of measurement is difficult because the line widths of such stars are often comparable to the width of a single echelle order. To compensate for the scarcity of lines and Doppler information content, we have developed a process that...

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