Effect of Molecular Additives on the Ignition of Methane–Air Mixtures

Combustion, Explosion, and Shock Waves - The ignition of methane–air mixtures with additives of ClF5, ClF3, OF2, and H2O2 (additive content in the mixtures  $$\le$$ 1%) is studied by...     

Occurrence of free convection in a plane layer in the presence of a chemical transport reaction

We consider the conditions for the occurrence of natural convection when a volatile compound is transported through a gaseous phase as a result of a chemical reaction with a solid substance. We determine the variation of the critical Rayleigh number for the principal level of instability as a function of the parameters of the process.Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 38, No. 1, pp. 99–106, January, 1980.     

A High-Sensitivity “Acoustically Pumped” Sensor for Measuring Constant and Low-Frequency Magnetic Fields

A new type of sensor for measuring weak constant and low-frequency magnetic fields is described. Its measured sensitivity is 0.1 nT. A significant increase in sensitivity can be obtained. The sensor is simple in design, has a wide dynamic range, can be used under various operating conditions and in numerous applications.__________Translated from Pribory i Tekhnika Eksperimenta, No. 3, 2005, pp. 142–146.Original Russian Text Copyright © 2005 by Kazantsev, Koblik, Sotnichenko.     

Special surgery of blood vessels injuries in abdominal trauma

The analysis of the results of treatment of 41 victims with large vessels injuries in abdominal trauma was carried out. According to their location, all the injured vessels were divided in 5 groups: 1) on median line above the mesocolon (9 cases); 2) on median line under the mesocolon (14 cases); 3) in superior lateral part of the abdominal cavity (2); 4) in interior-lateral part of abdominal cavity (8); 5) in the region of hepato-duodenal ligament and retrohepatic area (13). Combined vascular injuries were observed in 5 patients. Basic aspects of diagnosis, surgical policy and treatment are discussed, 14 patients died.