Zobrazeno 1 - 10
of 153
pro vyhledávání: '"V. V. Grigor'eva"'
Autor:
N. R. Meier-Melikyan, V. V. Grigor'eva, N. I. Gabaraeva, M. V. Tekleva, Svetlana Polevova, Ya. V. Kosenko
Publikováno v:
Russian Journal of Plant Physiology. 50:330-338
By means of electron microscopy, we studied the development of pollen grain walls in Calendula officinalis L., Dimorphotheca aurantiaca DC., and Cichorium intybus L. (Asteraceae). As a reference, we studied the plants from the families Schisandraceae
Autor:
V. V. Kirsanov, V. V. Grigor’eva
Publikováno v:
Technical Physics. 44:771-774
The permeation of tritium produced in thermonuclear fusion through metallic membranes, which is a topical problem in radiation physics, is addressed. A physical model for the permeation of hydrogen through a beryllium membrane is proposed which takes
Publikováno v:
Anesteziologiia i reanimatologiia. (2)
Effect of diprivan on cerebral blood flow, intracranial (ICP) and cerebral perfused pressure (CPP) was studied in neurosurgical patients during induction narcosis. The labored perfusion syndrome was observed in all patients during the initial stage.
Publikováno v:
Akusherstvo i ginekologiia. (4)
The activity of natural killer (NK) cells was found to be significantly higher in females with various miscarriages than that in those with normal pregnancy. The highest NK cell activity was observed in females with interrupted pregnancy.
Publikováno v:
Soviet Powder Metallurgy and Metal Ceramics. 6:211-216
1. Powder metallurgical nickel-alumina alloys prepared by the method of high-temperature sintering and then subjected to compressive deformation at room temperature exhibit a strength loss at the same annealing temperature as does pure nickel. Howeve
Publikováno v:
Journal of Applied Spectroscopy. 11:1096-1101
Publikováno v:
Soviet Powder Metallurgy and Metal Ceramics. 6:24-28
1. Aluminum oxide dispersed in the nickel matrix reduces the size of the grains and coherent scattering regions of the latter. These changes become particularly marked in alloys subjected to hot extrusion. 2. The compressive strength of extruded nick
Autor:
V. V. Grigor'eva
Publikováno v:
Soviet Powder Metallurgy and Metal Ceramics. 2:221-226
This paper presents the results of tests of hard alloys under conditions of erosive and abrasive wear, showing the high resistance of these alloys both at room and high temperatures. The resistance is several times higher than that of ordinary and al
Autor:
V. V. Grigor'eva, V. M. Sergienkova
Publikováno v:
Soviet Powder Metallurgy and Metal Ceramics. 2:464-467
1. During the sintering of nickel with different amounts of aluminum oxide, the particle size of the latter increases. The aluminum oxide particles are distributed predominantly along the grain boundaries. 2. The growth of the aluminum oxide particle
Autor:
Yu. I. Kozlov, A. P. Savitskii, V. M. Sergeenkova, V. A. Kulikov, V. I. Itin, V. N. Zhdanova, K. V. Savitskii, V. V. Grigor'eva
Publikováno v:
Soviet Powder Metallurgy and Metal Ceramics. 4:758-764
1. In tests at room temperature, the deformation resistance of sintered alloys of nickel with up to 5% aluminum oxide, prepared by high-temperature sintering, differs only slightly from that of sintered nickel. It shows a certain increase with increa