Development of a thermostable catalyst coating for laminar reactors

Translated from Khimicheskoe i Neftyanoe Mashinostroenie, No. 2, ppT 14–15, February, 1988.     

A method of morphological identification of individual neurons in the brain in vivo and after fixation.

Pyramidal neurons from layers III and V of the cat brain cortex being stained with methylene blue are revealed in vivo in specially prepared cortex specimen by means of contact micro-objectives in the reflected light. Small pieces of the brain tissue with identified neurons are excised after their fixation in situ under visual control and are placed in special grid-baskets in definite positions. Orientated and fixed by the basket's edges a bit of tissue is subjected to further histological treatment. This method permits the investigation of the same neurons after fixation by means of histological techniques suited for light or electron microscopy.     

Investigation of the Hydraulic Resistance in Polyethylene Pipelines

The hydraulic resistance to a flow propagating in polyethylene pipelines with a velocity characteristic of flows propagating in gas-supply systems has been experimentally investigated. The experimental data have been processes statistically with the use of the maximum-likehood method and regression analysis. The hydraulic-resistance coefficient has been approximated using the Colebrook-White, Prandtl, and other models. Corrections to the hydraulic formulas used for calculating polyethylene pipelines in the process of their designing and service are proposed.__________Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 78, No. 2, pp. 136–144, March–April, 2005.