1,577 research outputs found
Some features of the fabrication of multilayer fiber composites by explosive welding
The fabrication of multilayer fiber composites by explosive welding is characterized by intense plastic deformation of the matrix material as it fills the spaces between fibers and by high velocity of the collision between matrix layers due to acceleration in the channels between fibers. The plastic deformation of the matrix layers and fiber-matrix friction provide mechanical and thermal activation of the contact surfaces, which contributes to the formation of a bond. An important feature of the process is that the fiber-matrix adhesion strength can be varied over a wide range by varying the parameters of impulsive loading
Activity of the right cardiac ventricle and metabolism in healthy persons during an orthostatic test after short term immobilization
A 15 minute orthostatic test was performed on healthy male volunteers under conditions of catheterization of the right ventricle of the heart and the radial (or brachial) artery before and after 5 day bedrest in an antiorthostatic position of the body (with the foot of the bed raised 4.5 degrees). The change to a vertical position after immobilization was attended by a more marked increase in the rate of cardiac contractions, an increase of max dp/dt pressure in the right ventricle, and a decrease of cardiac and stroke indices. The decrease of the cardiac index was compensated for, to a certain measure, by a further increase in the extraction and utilization of O2 by the tissues. The arterial blood pH did not change essentially, while the decrease in pCO2 and content of standard bicarbonate was more marked
ΠΡΠΎΠ±Π΅Π½Π½ΠΎΡΡΠΈ ΠΈ ΡΡΠ°ΠΏΡ Π³Π΅Π½Π΅Π·ΠΈΡΠ° Π΄ΡΠ΅Π²Π½Π΅ΠΊΠΈΡΠ°ΠΉΡΠΊΠΎΠΉ ΡΠΈΠ»ΠΎΡΠΎΡΠΈΠΈ: ΡΠΊΠΎΠ»Ρ ΠΈ Π½Π°ΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ
Π£ ΡΡΠ°ΡΡΡ ΡΠΎΠ·Π³Π»ΡΠ½ΡΡΠΎ ΠΏΠ΅ΡΠ΅Π΄ΡΠΌΠΎΠ²ΠΈ ΠΉ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠ½Ρ ΡΠΈΡΠΈ ΡΠΎΠ·Π²ΠΈΡΠΊΡ ΡΡΠ»ΠΎΡΠΎΡΡΡΠΊΠΈΡ
ΡΠΊΡΠ» ΠΠ°Π²Π½ΡΠΎΠ³ΠΎ ΠΠΈΡΠ°Ρ. ΠΠ°Π²Π΅Π΄Π΅Π½ΠΎ ΠΊΠ»Π°ΡΠΈΡΡΠΊΠ°ΡΡΡ ΠΎΡΠ½ΠΎΠ²Π½ΠΈΡ
ΡΡΠ»ΠΎΡΠΎΡΡΡΠΊΠΈΡ
ΡΠΊΡΠ». ΠΠΎΠΊΠ°Π·Π°Π½ΠΎ Π²Π·Π°ΡΠΌΠΎΠ·Π²βΡΠ·ΠΎΠΊ ΠΌΡΠΆ ΠΎΠΊΡΠ΅ΠΌΠΈΠΌΠΈ Π½Π°ΠΏΡΡΠΌΠ°ΠΌΠΈ ΡΡΠ»ΠΎΡΠΎΡΡΡΠΊΠΎΡ Π΄ΡΠΌΠΊΠΈ.Pre-conditions and personal touches of development of philosophical schools of Ancient China are considered in the article. Classification of basic philosophical schools is resulted. Intercommunication between separate directions of philosophical idea is shown.Π ΡΡΠ°ΡΡΠ΅ ΡΠ°ΡΡΠΌΠΎΡΡΠ΅Π½Ρ ΠΏΡΠ΅Π΄ΠΏΠΎΡΡΠ»ΠΊΠΈ ΠΈ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠ½ΡΠ΅ ΡΠ΅ΡΡΡ ΡΠ°Π·Π²ΠΈΡΠΈΡ ΡΠΈΠ»ΠΎΡΠΎΡΡΠΊΠΈΡ
ΡΠΊΠΎΠ» ΠΡΠ΅Π²Π½Π΅Π³ΠΎ ΠΠΈΡΠ°Ρ. ΠΡΠΈΠ²Π΅Π΄Π΅Π½Π° ΠΊΠ»Π°ΡΡΠΈΡΠΈΠΊΠ°ΡΠΈΡ ΠΎΡΠ½ΠΎΠ²Π½ΡΡ
ΡΠΈΠ»ΠΎΡΠΎΡΡΠΊΠΈΡ
ΡΠΊΠΎΠ». ΠΠΎΠΊΠ°Π·Π°Π½Π° Π²Π·Π°ΠΈΠΌΠΎΡΠ²ΡΠ·Ρ ΠΌΠ΅ΠΆΠ΄Ρ ΠΎΡΠ΄Π΅Π»ΡΠ½ΡΠΌΠΈ Π½Π°ΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡΠΌΠΈ ΡΠΈΠ»ΠΎΡΠΎΡΡΠΊΠΎΠΉ ΠΌΡΡΠ»ΠΈ
Innovative development of Russian coastal regions: Northβsouth divergence
Coastal regions are territorial social systems whose socio-economic and innovative development is strongly influenced by the factor of coastalisation. The effect of movement to the sea determines the dynamics of settlement systems as well as their economic and infrastructure development. This holds for transport, logistics, information and communications, industrial, and other infrastructure. Coastal regions are so diverse that it is impossible to construct a development model that will fit all of them. One can speak only of general trends. This study focuses on identifying differences between the innovation systems of northern and southern coastal regions within the same country. The geographical scope of the study is four Russian coastal territories: Murmansk and Arkhangelsk in the Baltic Sea region and Rostov and Krasnodar in the Azov-Black Sea region. Methodologically, this study carries out a comparative assessment of heterogeneity of innovative development at municipal and interregional levels, using four groups of indicators: human capital, economic growth and clustering, innovation and digitalisation, and quality and standards of living. All these components are vital for regional innovative development. A statistical assessment is supplemented by a qualitative analysis of spatial patterns of innovation capital accumulation; the agglomeration factor is taken into account. It is shown that northern and southern coastal regions perform very differently on innovative development, the latter doing better than the former. Three main models of innovation generation, implementation, and accumulation of coastal regions are described. Each is associated with a different way to benefit from proximity to the sea. These are maritime activities, maritime transport, and the economic use of recreational, natural and climatic resources
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