SIMULATION OF BUYERS'S BEHAVIOR AT MASS SERVICE IN TRADE ENTERPRISES

Рассматриваются вопросы моделирования поведения покупателей в очередях торговых предприятий. Анализируются модели «нетерпеливых» и «терпеливых» покупателей. The issues of modeling customer behavior in the queues of trading enterprises are considered. The models of “impatient” and “patient” buyers are analyzed

Quasifission processes in 40,48^{40,48}Ca+144,154^{144,154}Sm reactions

Mass-energy and angular distributions of fission fragments for the $^{48}$Ca+$^{144,154}$Sm \to $^{192,202}$Pb, $^{40}$Ca+$^{154}$Sm \to $^{194}$Pb reactions have been measured. Fusion suppression and the presence of quasifission at energies near and below the Coulomb barrier have been observed for the reactions with the deformed target $^{154}$Sm. In the case of the spherical $^{144}$Sm target no evidence of quasifission has been found. Quasifission cross sections have been extracted from total fission-like events by analysis of their mass and angular distributions

Capture and fusion-fission processes in heavy ion induced reactions

Results of the experiments aimed at the study of fission and quasi-fission processes in the reactions 12C+204Pb, 48Ca+144,154Sm, 168Er, 208Pb, 238U, 244Pu, 248Cm; 58Fe+ 208Pb, 244Pu, 248Cm, and 64Ni+ 186W, 242Pu are presented. The choice of the above-mentioned reactions was inspired by the experiments on the production of the isotopes 283112, 289114 and 283116 at Dubna using the same reactions. The 58Fe and 64Ni projectiles were chosen since the corresponding projectile-target combinations lead to the synthesis of even heavier elements. The experiments were carried out at the U-400 accelerator of the Flerov Laboratory of Nuclear Reactions (JINR, Russia), the XTU Tandem accelerator of the National Laboratory of Legnaro (LNL, Italy) and the Accelerator of the Laboratory of University of Jyvaskyla (JYFL, Finland) using the time-of-flight spectrometer of fission fragments CORSET and the neutron multi-detector DEMON. The role of shell effects and the influence of the entrance channel asymmetry and the deformations of colliding nucleus on the mechanism of the fusion-fission and the competitive process of quasi-fission are discussed. © 2005 American Institute of Physics.SCOPUS: cp.pinfo:eu-repo/semantics/publishe