The Mutual Effect of Reciprocally Moving Geokhod and Geological Environment Studied by the Discrete Element Method in Software PFC3D 5.00

A numerical experiment procedure of geokhod traverse in the geological environment, based on software PFC3D 5.00 is presented in the paper; the interpretation of numerical experiment results is provided

Characteristics of the secondary electrons calibration beam of the accelerator S-25R "Pakhra"

The characteristics of the secondary electrons` calibration quasi-monochromatic beam of the accelerator S-25R "Pakhra" of the Lebedev Physical Institute of the Russian Academy of Sciences (LPI) on the basis of magnet SP-57 are presented. With an electron energy in the range of 45-280 MeV, a collimator diameter in front of the trigger counters of 3 mm and copper Converter thicknesses of 1-3 mm, the energy resolution and beam intensity were 4.4-2.2% and around 16 e/sec, respectively

Lipemia as a determinant of development of an acute pancreatitis: investigation «case-control»

Objective. To establish the connection between lipemia and course of an acute pancreatitis. Materials and methods. The investigation design: «case - control». There were incorporated 93 patients, suffering an acute pancreatitis. Group «case» - 11 patients with acute pancreatitis and lipemia, Group «control» - 82 patients with acute pancreatitis without lipemia. Interrelationship was investigated in accordance to the relative risk index between lipemia and the factors signs: the acute pancreatitis severity degree, recurrent course of the disease, presence of diabetes mellitus and alcoholic anamnesis. Results. Comparative analysis of rate for the factors signs revealing have established, that possibility of development of severe acute pancreatitis and possibility of the alcohol-induced acute pancreatitis occurrence in groups of patients did not differ statistically meaningful (p > 0.05). While comparing a rate of the acute pancreatitis recurrence and the diabetes mellitus presence in groups of patients there were differences revealed on the significant level: p=0.02 and p=0.04 accordingly. Lipemia constitutes a risk factor for recurrent course of an acute pancreatitis and diabetes mellitus in patients with an acute pancreatitis: relative risk 7.5 (95% CI 1.8 - 26.6, p=0.02), RR 6.1 (95% CI 1.2 - 28.7, p= 0.02) accordingly. Conclusion. Presence of lipemia did not impact the acute pancreatitis severity (p=0.98). Possibility of the acute pancreatitis recurrence in patients with lipemia in 7 times is higher, than in patients with an acute pancreatitis without lipemia (p=0.02). Possibility of diabetes mellitus presence in patients with an acute pancreatitis and lipemia is in 6 times higher, than in patients wihout lipemia (p= 0.02). Timely diagnosis and correction of a dislipoproteinemia constitutes a prophylactic measure, which is capable to lower the rate of an acute pancreatitis recurrence

The production of a machine designed for the cold radial cyclic forging of solid and tube billets

This paper gives an account of a new project for the design and production of a radial cyclic forging machine. This new design considers the advantages of its predecessor and of modern trends within the engineering industry. The use of this machine could enable the considerable reduction of production wastes. Besides the cold cyclic technology implemented in this machine, it will also allow for the increase in energy efficiency, for the minimum capital investments. © 2014 WIT Press.International Journal of Safety and Security Engineering;International Journal of Sustainable Development and Planning;WIT Transactions on Ecology and the Environmen

Fragmentation channels of relativistic 7^7Be nuclei in peripheral interactions

Nuclei of $^7$Li were accelerated at the JINR Nuclotron. After the charge-exchange reaction involving these nuclei at an external target a second $^7$Be beam of energy 1.23A GeV was formed. This beam was used to expose photo-emulsion chambers. The mean free path for inelastic $^7$Be interactions in emulsion $\lambda$=14.0$\pm$0.8 cm coincides within the errors with those for $^6$Li and $^7$Li nuclei. More than 10% of the $^7$Be events are associated with the peripheral interactions in which the total charge of the relativistic fragments is equal to the charge of the $^7$Be and in which charged mesons are not produced. An unusual ratio of the isotopes is revealed in the composition of the doubly charged $^7$Be fragments: the number of $^3$He fragments is twice as large as that of $^4$He fragments. In 50% of peripheral interactions, a $^7$Be nucleus decays to two doubly charged fragments. The present paper gives the channels of the $^7$Be fragmentation to charged fragments. In 50% of events, the $^7$Be fragmentation proceeds only to charged fragments involving no emission of neutrons. Of them, the $^3$He+$^4$He channel dominates, the $^4$He+d+p and $^6$Li+pchannels constitute 10% each. Two events involving no emission of neutrons are registered in the 3-body $^3$He+t+p and $^3$He+d+d channels. The mean free path for the coherent dissociation of relativistic $^7$Be nuclei to $^3$He+$^4$He is 7$\pm$1 m. The particular features of the relativistic $^7$Be fragmentation in such peripheral interactions are explained by the $^3$He+$^4$He 2-cluster structure of the $^7$Be nucleus.Comment: 10 pages, 3 figures, 3 tables, conference: Conference on Physics of Fundamental Interactions, Moscow, Russia, 5-9 Dec 200

Серонегативное течение висцерального сифилиса у хирургических больных

Висцеральный сифилис диагностируют при жизни лишь у 10 % пациентов. Критерии интраоперационной диагностики висцерального сифилиса требуют дальнейшего изучения, поскольку ни макроскопическая оценка поражения, ни морфологическая диагностика не позволяют достоверно верифицировать диагноз