Results 1 to 10 of about 219 (46)
Comparative estimation of the quality of fire danger indexes in forests [PDF]
Weather conditions are one of the important factors, which affects forest fire danger. Taking into consideration different methodical approaches (in particular, to accounting for precipitation) and differences between forestry and natural climatic ...
R. V. Kotelnikov, A. N. Chugaev
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Development of navigation aids and decision support systems in forest firefighting [PDF]
An analytical review of satellite navigation systems, devices for receiving and processing spatial information, in the context of their use in monitoring and extinguishing fires in the natural environment, is presented.
A. V. Bryukhanov, R. V. Kotelnikov
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Current state of agroforestry pyrology in Russia [PDF]
This article defines the main issues of the research area under consideration, discusses the literature sources of Russian scientists engaged in research in the field of agroforestry pyrology in Russia in recent years.
Vereshchagin Evgeny Konstantinovich
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Essay on the history of Russian forest pyrology [PDF]
Forest pyrology was used as a part of the forestry in the end of the nineteenth century. The founder of the forest pyrology in Russia was academician Ivan S. Melekhov.
P. A. Tsvetkov
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Forest pyrology in Russia: achievements and problems [PDF]
The state of Russian forest pyrology from the beginning of XXI century to present time was examined in the article. Main problems of basic and applied research of fire scientists for the last years were revealed.
P. A. Tsvetkov
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Trichogramma is an important genus of egg parasitoids, applied against agricultural and forest lepidopteran pests. Known species differ in host specificity, which affects both their efficiency in field and suitability for mass rearing.
Aleksander A. Ageev +4 more
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Available Energy Analysis of New Double-capillary Tube Refrigeration System of Refrigerator-freezer
A new double - capillary tube refrigeration system for refrigerator - freezers was proposed. A capillary tube was added between the two evaporators in the fresh and frozen food storage chests to raise the evaporation temperature of the fresh food, and ...
何茂刚, 宋新洲, 张颖, 张建涛
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Performance Study on Energy Separation in Vortex Tube with Six Channels
The performances of energy separation in a vortex tube were experimentally studied with compressed air to be the working medium and the influences of inlet pressure and cold mass flow fraction on cooling effect and heating effect of the vortex tube were ...
王远鹏, 聂荣华, 林明峰
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An Integrated Numerical Design Tool for Air-to-refrigerant Heat Exchangers
In order to meet the requirement of simulating different types of heat exchangers which are widely used in refrigerating system by a simulation tool, a general 3D distributed-parameter numerical design tool, HXSIM, is introduced.
Ren Tao, Ding Guoliang, Wang Tingting
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Heat exchangers including condenser and evaporator are important equipments in the compression type refrigeration and air conditioning units, and their heat transfer coefficients have a direct effect on the efficiency and cost of the units.
Zhang Zhengguo +4 more
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