scholarly journals Localization conditions for model ground and steppe fires with the use of barrier lines

2019 ◽  
Author(s):  
Zhdanova Alena ◽  
Strizhak Pavel ◽  
Kuznetsov Genii ◽  
Hasanov Irek ◽  
Kopylov Nikolay
Keyword(s):  
Localization Conditions ◽  
Steppe Fires

Influence of Radiation from the Flame Torch on Propagation of Steppe Fires

2005 ◽  
Vol 36 (6) ◽  
pp. 501-506 ◽  
Author(s):  
A. M. Grishin ◽  
D. M. Burasov
Keyword(s):  
Steppe Fires

ELECTROMAGNETIC CONTROL OF DYNAMICAL LOCALIZATION CONDITIONS IN 1D LATTICES WITH LONG-RANGE INTERSITE INTERACTIONS

2009 ◽  
Vol 07 (supp01) ◽  
pp. 149-154
Author(s):  
MARIA ANASTASIA JIVULESCU ◽  
ROSANNA MIGLIORE ◽  
ANTONINO MESSINA
Keyword(s):  
Charged Particle ◽  
Energy Spectrum ◽  
Electric Field ◽  
Long Range ◽  
Dynamical Localization ◽  
Bichromatic Field ◽  
Electromagnetic Control ◽  
Tunneling Dynamics ◽  
Localization Conditions

In this paper we investigate the possibility of controlling dynamical localization conditions for a charged particle confined in a 1D lattice biased with a dc-bichromatic field and long-range intersite interactions. We derive the quasi-energy spectrum of the system proving that the tunneling dynamics of the particle can be destroyed provided that the parameters of the external irradiating electric field are properly chosen.

Mathematical Modeling of Steppe Fires

2020 ◽  
pp. 48-62 ◽  
Author(s):  
Valeriy Afanasievich Perminov
Keyword(s):  
Mathematical Modeling ◽  
Mathematical Model ◽  
Wind Speed ◽  
Vegetation Cover ◽  
Meteorological Conditions ◽  
Condensed Phases ◽  
Pyrolysis Products ◽  
Rate Of Spread ◽  
The Mathematical Model ◽  
Steppe Fires

The chapter presents a mathematical model of the initiation and spread of the steppe fire. The mathematical model is based on the laws of mechanics of multiphase reacting media. The main physicochemical processes describing the drying, pyrolysis, and combustion of gaseous and condensed pyrolysis products are taken into account. As a result of the numerical solution, the distributions of the velocity, temperature, and concentration fields of the components of the gas and condensed phases were determined. The dependence of the rate of spread of the steppe fire on the main parameters of the state of vegetation cover and wind speed was studied. The mathematical model presented in the chapter can be used to predict the spread of steppe fires for various types of steppe vegetation and meteorological conditions, as well as for preventive measures.

Unit study of monkey frontal cortex: active localization of auditory and of visual stimuli

1986 ◽  
Vol 56 (4) ◽  
pp. 934-952 ◽  
Author(s):  
E. Vaadia ◽  
D. A. Benson ◽  
R. D. Hienz ◽  
M. H. Goldstein
Keyword(s):  
Auditory Cortex ◽  
Frontal Cortex ◽  
Broad Band ◽  
Primary Auditory Cortex ◽  
Auditory Localization ◽  
Visual Localization ◽  
Spatial Tuning ◽  
Active Localization ◽  
Localization Conditions ◽  
Localization Behavior

The influence of sound localization behavior on unit activity in the frontal cortex of awake rhesus monkeys was examined by comparing responses under three behavioral conditions: auditory localization, during which a response was required to the location of a sound (broad-band noise) source; auditory detect, during which a response was required to indicate the occurrence of the sound regardless of location; visual localization, during which no sounds were presented and a response was required to the location of a visual stimulus; and nonperform, presentation of auditory stimuli as in the first two conditions, but with the animal sitting passively. Extracellular microelectrode recordings were made in the periarcuate region and dorsal and ventral prefrontal areas near the principal sulcus. Four monkeys were used with a total of 498 cells studied. Of the total population, only five cells were found to have characteristics similar to those of auditory units in the primary auditory cortex and the surrounding belt area. More typically, units were found that had strong short-latency responses specific to the auditory and/or visual localization tasks. These units had no or weak responses when the same sound stimuli were presented in the auditory detect task or when a monkey received the sound stimuli in a nonperforming condition. Two regions were identified, one medial and/or posterior to the arcuate sulcus, in Brodmann's area 6; the second included parts of areas 8 and 9 within the genu of the arcuate sulcus. Units from these regions are referred to, respectively, as the postarcuate and the prearcuate populations. Both populations responded predominantly during active localization behavior. Sixty-two percent of the postarcuate population responded during auditory localization, 32% responded during auditory detect, and only 18% responded to acoustic stimuli presented in the nonperforming condition. In the prearcuate population percentages in these three conditions were 35, 25, and 12%, respectively. For visual localization, 54% in the postarcuate population responded, whereas 42% in the prearcuate responded. Spatial tuning of units during auditory localization was similar to that seen in units of the primary auditory cortex, with the greatest percentages of units responding to stimuli contralateral to the recording site. Similar tuning was observed for the visual localization task as well. Similarities in spatial tuning between the auditory and visual localization conditions were examined to assess the "bimodal" nature of the units.(ABSTRACT TRUNCATED AT 400 WORDS)

Localization conditions of lenticular layers of polymetallic ores in Irtysh zone of buckling, as in Belousovskoye ore deposit

1971 ◽  
Vol 13 (11) ◽  
pp. 1684-1696
Author(s):  
A.A. Garmash ◽  
N.I. Stuchevskiy ◽  
G.L. Rubo ◽  
A.I. Kondratov ◽  
V.G. Dubov
Keyword(s):  
Ore Deposit ◽  
Localization Conditions

scholarly journals Localization conditions for two-level systems

1994 ◽  
Vol 191 (1-2) ◽  
pp. 1-6 ◽  
Author(s):  
Hu Cheng ◽  
Mo-Lin Ge ◽  
Jiushu Shao
Keyword(s):  
Two Level Systems ◽  
Localization Conditions
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