Formation of isomeric diphenyl pentaerythrityl diphosphites in transesterification of triphenyl phosphite with pentaerythritol

Employing the method of thin-layer chromatography, it was shown that the transesterification of triphenyl phosphite with pentaerythritol gives a mixture of two isomeric diphenyl pentaerythrityl diphosphites, the structure of which was confirmed by synthesis. © 1973 Consultants Bureau

EAS muon distributions and primary mass composition from the GAMMA installation

Abstract The phenomenological characteristics of the muon component of extensive air showers with energies 10 6 −10 7 GeV are obtained with the GAMMA installation at Mt. Aragats in Armenia, (3200m a.s.l., 700 g.cm −2 ). The experimental results are compared with the simulation carried out using the CORSIKA code. A new selection parameter is analysed for an unbiased determination of the primary mass composition

Formation of isomeric diphenyl pentaerythrityl diphosphites in transesterification of triphenyl phosphite with pentaerythritol

Employing the method of thin-layer chromatography, it was shown that the transesterification of triphenyl phosphite with pentaerythritol gives a mixture of two isomeric diphenyl pentaerythrityl diphosphites, the structure of which was confirmed by synthesis. © 1973 Consultants Bureau

Formation of isomeric diphenyl pentaerythrityl diphosphites in transesterification of triphenyl phosphite with pentaerythritol

Employing the method of thin-layer chromatography, it was shown that the transesterification of triphenyl phosphite with pentaerythritol gives a mixture of two isomeric diphenyl pentaerythrityl diphosphites, the structure of which was confirmed by synthesis. © 1973 Consultants Bureau

Formation of isomeric diphenyl pentaerythrityl diphosphites in transesterification of triphenyl phosphite with pentaerythritol

Employing the method of thin-layer chromatography, it was shown that the transesterification of triphenyl phosphite with pentaerythritol gives a mixture of two isomeric diphenyl pentaerythrityl diphosphites, the structure of which was confirmed by synthesis. © 1973 Consultants Bureau

Primary Energy Spectra and Elemental Composition. GAMMA Experiment

11 pages, 14 figures, submitted to 29th International Cosmic Ray Conference, PuneOn the basis of the Extensive Air Shower data observed by the GAMMA experiment the energy spectra and elemental composition of the primary cosmic rays have been derived in the 1-100 PeV energy range. Reconstruction of the primary energy spectra is carried out in the framework of the SIBYLL and QGSJET interaction models and the hypothesis of the power-law steepening primary energy spectra. All presented results are derived taking into account the detector response, reconstruction uncertainties of EAS parameters and fluctuation of EAS development