Construction of the distribution functions of the oh radicals in the H2-O2 flame

In the present paper the construction of the distribution functions for OH radicals in the H₂-O₂ flame is dealt with. The construction is based on the fact stated in [1] that there are two groups of OH radicals in the flame. It is shown here that the method for temperature determination used in [1] can be considered as the first approximation only. According to this fact the method of determining the parameters of the flame (temperature etc.) solving system of equations for line intensities is presented here. In practice it is possible under certain conditions, discussed here, to use an improved method in order to determine the flame parameters and distribution functions of OH radicals. Also the reduction of the temperatures of the cold group of OH radicals based on above mentioned improved method is discussed here. The values of the temperature of the cold group of OH radicals to be reduced are taken from [1].     

Elektronenstossinduzierte Fragmentierung von Acetylenverbindungen. IX—Struktur der Stabilen [C9H11]+-Ionen aus Isomeren C9H11-Chloriden

The structure of stable [C₉H₁₁]⁺ ions from different model compounds with the molecular formula C₉H₁₁Cl has been estimated by energy measurements. It has further been shown that acetylenic compounds cyclise to form aromatic ions in the range of the appearance potentials.     

Invariant Manifolds in Dissipative Dynamical Systems

Invariant manifolds like tori, spheres and cylinders play an important part in dynamical systems. In engineering, tori correspond with the important phenomenon of multi-frequency oscillations. Normal hyperbolicity guarantees the robustness of these manifolds but in many applications weaker forms of hyperbolicity present more realistic cases and interesting phenomena. We will review the theory and present a number of examples using normalization-averaging techniques.Dedicated to nonlinear scientist Ale Tondl on his 80th birthdayMathematics Subject Classifications (2000) 34C30, 34C20.     

Thiamorphinans. I

The present paper deals with the synthesis of 5,5a,6,7,8,9-hexahydro-5,9a-iminoethano-4H-naphtho[2,1-b] -thiophenes (I) as derivatives of the first of three novel isomeric S-heterocycles with morphinan-like structure (“thiamorphinans”).