Statistical Analysis of Precipitation Events

In the present paper we demonstrate the results of a statistical analysis of some characteristics of precipitation events and propose a kind of a theoretical explanation of the proposed models in terms of mixed Poisson and mixed exponential distributions based on the information-theoretical entropy reasoning. The proposed models can be also treated as the result of following the popular Bayesian approach.Comment: 5 pages, 4 figures; ICNAAM 201

Experiments on Sonoluminescence: Possible Nuclear and QED Aspects and Optical Applications

Experiments aimed at testing some hypothesis about the nature of Single Bubble Sonoluminescence are discussed. A possibility to search for micro-traces of thermonuclear neutrons is analyzed, with the aid of original low-background neutron counter operating under conditions of the deep shielding from Cosmic and other sources of background. Besides, some signatures of QED-contribution to the light emission in SBSL are under the consideration, as well as new approaches to probe a temperature inside the bubble. An applied-physics portion of the program is presented also, in which an attention is being paid to single- and a few-pulse light sources on the basis of SBSL.Comment: 4 pages; to be published by AIP in the Proc. ISNA-1

GEOCHRONOLOGY AND SR-ND ISOTOPE GEOCHEMISTRY OF LATE PALEOZOIC COLLISIONAL GRANITOIDS OF UNDINSKY COMPLEX (EASTERN TRANSBAIKAL REGION)

There are several geodynamic models of the Central Asian Orogenic Belt (CAOB) development [Şengör et al., 1993, Zorin, 1999; Parfenov et al., 1999, 2003; Willem et al., 2012; and others]. The Mongol-Okhotsk Orogenic Belt (MOB) represents important part of CAOB. All geodymanic models of Late Riphean to Paleozoic structures of CAOB emphasize significance of subduction processes along Northern Asian craton margin at that time. Collage of CAOB terrains formed as a result of accretion of island arc, accretionary wedge, turbidite, and continental margin terrains to the Siberian paleocontinent.There are several geodynamic models of the Central Asian Orogenic Belt (CAOB) development [Şengör et al., 1993, Zorin, 1999; Parfenov et al., 1999, 2003; Willem et al., 2012; and others]. The Mongol-Okhotsk Orogenic Belt (MOB) represents important part of CAOB. All geodymanic models of Late Riphean to Paleozoic structures of CAOB emphasize significance of subduction processes along Northern Asian craton margin at that time. Collage of CAOB terrains formed as a result of accretion of island arc, accretionary wedge, turbidite, and continental margin terrains to the Siberian paleocontinent

GEOCHEMISTRY AND ORIGIN OF THE EASTERN SAYAN OPHIOLITES, TUVA-MONGOLIAN MICROCONTINENT (SOUTHERN SIBERIA)

The Eastern Sayan ophiolites (1020 Ma) of the Tuva-Mongolian microcontinent are believed to be the most ancient ophiolite of the Central Asian Orogenic Belt [Khain et al., 2002].The Eastern Sayan ophiolites (1020 Ma) of the Tuva-Mongolian microcontinent are believed to be the most ancient ophiolite of the Central Asian Orogenic Belt [Khain et al., 2002]

Theoretical Study of Inelastic Processes in Collisions of Y and Y+^+ with Hydrogen Atom

Utilizing a simplified quantum model approach, the low-energy inelastic collision processes between yttrium atoms (ions) and hydrogen atoms have been studied. Rate coefficients corresponding to the mutual neutralization, ion-pair formation, excitation, and de-excitation processes for the above collision systems have been provided in the temperature range of 1000-10000K. 3 ionic states and 73 covalent states are considered in calculations for the collisions of yttrium atoms with hydrogen atoms, which include 6 molecular symmetries and 4074 partial inelastic reaction processes. For the collisions of yttrium ions with hydrogen atoms, 1 ionic state and 116 covalent states are included, which related to 3 molecular symmetries and 13572 partial inelastic collision processes. It is found that the rate coefficients for the mutual neutralization process have a maximum at T = 6000K, which is an order of magnitude higher than those of other processes. Notably, the positions of optimal windows for the collisions of yttrium atoms and ions with hydrogen atoms are found near electronic binding energy -2eV (Y) and -4.4eV (Y$^+$), respectively. The scattering channels located in or near these optimal windows have intermediate-to-large rate coefficients (greater than $10^{-12}$ cm$^3$s$^{-1}$). The reported data should be useful in the study of non-local thermodynamic equilibrium modeling.Comment: 15 pages, 6 figures, 3 table

Exclusion of the pipe rear end defects in the process of the PRP 220 rolling using the FE modeling

A line for the production of hot-deformed pipes on a pipe-rolling plant 220 equipped with an automatic elongation mill is considered. In the maintenance the appearance of longitudinal end defects typical for thin-walled pipes was revealed. On the basis of a software package implemented with the use of FEM, a model of the deformation zone of a two-stage process of the lengthwise rolling of pipes on a short mandrel has been simulated. Analysis of the flow of the hollow bloom metal in this process makes it possible to establish the nature of the defect formation, as well as to calculate its influence on the power parameters of the process. The formation of a defect at the rear ends of the pipe is associated with the loss of stability of the hollow bloom section when the hollow bloom metal flows into the roll caliber outlets, which leads to an increase in the contact surface of the rolls with the workpiece and the mandrel with the workpiece, as well as to contact with the surfaces of the rolls that are not intended for direct interaction with heated metal. As a result, a technical solution has been proposed that allows restricting the loss of stability of the rear end of the pipe and eliminating a decrease in the loads on the working tool of the rolling stand, due to the degeneration of the rear end defects of the pipes. This solution is justified using FE modeling. © 2021 Author(s).European Space Agency, ESA, (15236/02/NL/SH)Deutsche Forschungsgemeinschaft, DFG, (GA 1142/11-1, LI 2827/2-1, RE 1261/23-2)Russian Science Foundation, RSF, (21-19-00279)The authors gratefully acknowledge financial support from DFG (LI 2827/2-1, RE 1261/23-2 and GA 1142/11-1)European Space Agency (ESA) within the project NEQUISOL under contract No. 15236/02/NL/SH, and Russian Science Foundation under project No. 21-19-00279