20 research outputs found
Game species fodder conditions in Eastern Siberia and Amur region
Hunting farms can serve as a source of primary data on the state of natural resources.
Taking into account the increasing anthropogenic impact on the environment, it is necessary to
constantly monitor the situation with food for ungulates and predators in order to be able to take
timely measures to improve the quality of habitat for wild fauna. Populations of wild large
animals live in the host landscapes of so reduced that animals population become extremely
vulnerable and unstable, signs of crisis can be seen in the data on the number of animals. Lack of
natural food is a serious deterrent, especially in difficult times of the year, such as winter and
spring. An analysis of the situation with food for a particular species will allow hunting farms to
properly plan their feeding and other activities throughout the year in order to maintain a
population of certain species on their territory and minimize the migration of species outside the
protected areas. The aim of our work was to create a baseline for tracking data on the
characteristics of wildlife animals. The research results allow hunting farms to use the data of
animal feeding preferences during different seasons of the year for better organization of their
biotechnical measures and improvement of feeding conditions for such species as red deer
(Cervus elaphus), elk (Cervus canadensis), roe deer (Capreolus pygargus) and bear(Ursus
arctos)
Equations over free inverse monoids with idempotent variables
We introduce the notion of idempotent variables for studying equations in
inverse monoids.
It is proved that it is decidable in singly exponential time (DEXPTIME)
whether a system of equations in idempotent variables over a free inverse
monoid has a solution. The result is proved by a direct reduction to solve
language equations with one-sided concatenation and a known complexity result
by Baader and Narendran: Unification of concept terms in description logics,
2001. We also show that the problem becomes DEXPTIME hard , as soon as the
quotient group of the free inverse monoid has rank at least two.
Decidability for systems of typed equations over a free inverse monoid with
one irreducible variable and at least one unbalanced equation is proved with
the same complexity for the upper bound.
Our results improve known complexity bounds by Deis, Meakin, and Senizergues:
Equations in free inverse monoids, 2007.
Our results also apply to larger families of equations where no decidability
has been previously known.Comment: 28 pages. The conference version of this paper appeared in the
proceedings of 10th International Computer Science Symposium in Russia, CSR
2015, Listvyanka, Russia, July 13-17, 2015. Springer LNCS 9139, pp. 173-188
(2015
Studies of Anti-Viral Activity of Chemically Synthesized Compounds against Orthopoxviruses <I>in vitro</I>
for ST-246 and NIOC-14 is within the range of 0,001-0,004 Β΅g/ml, and IS for both of them is > 100000. In addition, ST-246 and NIOC-14 chemical compound efficacy, concentrated up to 0,0125; 0,025 and 0,05 Β΅g/ml, in accordance with prophylactic charts describing an impact on ectromelia virus (EV) infectivity
in vitro, is consequently 0,6; 3 and 1 lg higher than in case of compound application after an hour of Vero cells infection with EV
2-ΡΠΈΠΊΠ»ΠΎΠ°Π»ΠΊΠΈΠ»ΠΈΠΌΠΈΠ½ΠΎ-5-(4-Π½ΠΈΡΡΠΎΡΠ΅Π½ΠΈΠ»)-1,3,4-ΡΠΈΠ°Π΄ΠΈΠ°Π·ΠΈΠ½Ρ, ΠΎΠ±Π»Π°Π΄Π°ΡΡΠΈΠ΅ Π±ΠΈΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΎΠΉ Π°ΠΊΡΠΈΠ²Π½ΠΎΡΡΡΡ ΠΏΡΠΎΡΠΈΠ² Π²ΠΈΡΡΡΠΎΠ² ΠΎΡΠΏΡ
ΠΠ·ΠΎΠ±ΡΠ΅ΡΠ΅Π½ΠΈΠ΅ ΠΎΡΠ½ΠΎΡΠΈΡΡΡ ΠΊ Π½ΠΎΠ²ΡΠΌ 2-ΡΠΈΠΊΠ»ΠΎΠ°Π»ΠΊΠΈΠ»ΠΈΠΌΠΈΠ½ΠΎ-5-(4-Π½ΠΈΡΡΠΎΡΠ΅Π½ΠΈΠ»)-1,3,4-ΡΠΈΠ°Π΄ΠΈΠ°Π·ΠΈΠ½Π°ΠΌ ΠΎΠ±ΡΠ΅ΠΉ ΡΠΎΡΠΌΡΠ»Ρ I: Π³Π΄Π΅ ΠΏΠΈΠΏΠ΅ΡΠΈΠ΄ΠΈΠ½ΠΎ; ΠΏΠΈΡΡΠΎΠ»ΠΈΠ΄ΠΈΠ½ΠΎ; ΠΌΠ΅ΡΠΈΠ»ΠΏΠΈΠΏΠ΅ΡΠ°Π·ΠΈΠ½ΠΎ; Π³Π΅ΠΊΡΠ°ΠΌΠ΅ΡΠΈΠ»Π΅Π½ΠΈΠΌΠΈΠ½ΠΎ, ΠΊΠΎΡΠΎΡΡΠ΅ ΠΎΠ±Π»Π°Π΄Π°ΡΡ Π±ΠΈΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΎΠΉ Π°ΠΊΡΠΈΠ²Π½ΠΎΡΡΡΡ ΠΏΡΠΎΡΠΈΠ² Π²ΠΈΡΡΡΠΎΠ² ΠΎΡΠΏΡ. Π’Π΅Ρ
Π½ΠΈΡΠ΅ΡΠΊΠΈΠΉ ΡΠ΅Π·ΡΠ»ΡΡΠ°Ρ - ΠΏΠΎΠ»ΡΡΠ΅Π½Ρ Π½ΠΎΠ²ΡΠ΅ Π±ΠΈΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈ Π°ΠΊΡΠΈΠ²Π½ΡΠ΅ ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΡ, ΠΎΠ±Π»Π°Π΄Π°ΡΡΠΈΠ΅ ΠΏΡΠΎΡΠΈΠ²ΠΎΠ²ΠΈΡΡΡΠ½ΡΠΌ Π΄Π΅ΠΉΡΡΠ²ΠΈΠ΅ΠΌ, Π² ΡΠ°ΡΡΠ½ΠΎΡΡΠΈ Π² ΠΎΡΠ½ΠΎΡΠ΅Π½ΠΈΠΈ Π²ΠΈΡΡΡΠΎΠ² ΠΎΡΠΏΡ. 1 Π½.ΠΏ. Ρ-Π»Ρ, 1 ΡΠ°Π±Π». ΠΠ·ΠΎΠ±ΡΠ΅ΡΠ΅Π½ΠΈΠ΅ ΠΎΡΠ½ΠΎΡΠΈΡΡΡ ΠΊ ΠΎΠ±Π»Π°ΡΡΠΈ Π±ΠΈΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈ Π°ΠΊΡΠΈΠ²Π½ΡΡ
ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΠΉ, ΠΊΠ°ΡΠ°Π΅ΡΡΡ ΡΠ°Π·ΡΠ°Π±ΠΎΡΠΊΠΈ Π½ΠΎΠ²ΡΡ
ΠΏΡΠΎΠΈΠ·Π²ΠΎΠ΄Π½ΡΡ
1,3,4-ΡΠΈΠ°Π΄ΠΈΠ°Π·ΠΈΠ½ΠΎΠ², ΠΈ ΠΏΡΠ΅Π΄Π½Π°Π·Π½Π°ΡΠ΅Π½ΠΎ Π΄Π»Ρ Π»Π΅ΡΠ΅Π½ΠΈΡ ΠΈ ΠΏΡΠΎΡΠΈΠ»Π°ΠΊΡΠΈΠΊΠΈ Π·Π°Π±ΠΎΠ»Π΅Π²Π°Π½ΠΈΠΉ, Π²ΡΠ·ΡΠ²Π°Π΅ΠΌΡΡ
ΠΏΠ°ΡΠΎΠ³Π΅Π½Π½ΡΠΌΠΈ Π΄Π»Ρ ΡΠ΅Π»ΠΎΠ²Π΅ΠΊΠ° ΠΈ ΠΆΠΈΠ²ΠΎΡΠ½ΡΡ
Π²ΠΈΡΡΡΠ°ΠΌΠΈ, Π° ΡΠ°ΠΊΠΆΠ΅ Π²ΠΈΡΡΡΠΎΠΌ ΠΎΡΠΏΠ°Π²Π°ΠΊΡΠΈΠ½Ρ (Π»Π΅ΡΠ΅Π½ΠΈΠ΅ ΠΏΠΎΡΡΠ²Π°ΠΊΡΠΈΠ½Π°Π»ΡΠ½ΡΡ
ΠΎΡΠ»ΠΎΠΆΠ½Π΅Π½ΠΈΠΉ)
Modeling the deformation of an elastic element of a small spacecraft in its plane during temperature shock
A basic mathematical model of the deformation of a large elastic element of a small spacecraft in its plane is constructed. Deformations are caused by a temperature shock after a small spacecraft leaves the Earthβs shadow on the solar portion of the orbit. The model is used to conduct a computational experiment with the aim of assessing perturbations acting on a small spacecraft due to temperature shock. The temperature distribution during thermal shock is described by a one-dimensional model of thermal conductivity. The classical theory of thin plates is used to determine the deformations. The results of the estimation of disturbing factors are obtained as a result of a computational experiment for a model small spacecraft. These results indicate the need to compensate for the impact of temperature shock for small technological spacecraft. The data obtained can be used in the design of small space-craft for technological purposes
Modeling the deformation of an elastic element of a small spacecraft in its plane during temperature shock
A basic mathematical model of the deformation of a large elastic element of a small spacecraft in its plane is constructed. Deformations are caused by a temperature shock after a small spacecraft leaves the Earthβs shadow on the solar portion of the orbit. The model is used to conduct a computational experiment with the aim of assessing perturbations acting on a small spacecraft due to temperature shock. The temperature distribution during thermal shock is described by a one-dimensional model of thermal conductivity. The classical theory of thin plates is used to determine the deformations. The results of the estimation of disturbing factors are obtained as a result of a computational experiment for a model small spacecraft. These results indicate the need to compensate for the impact of temperature shock for small technological spacecraft. The data obtained can be used in the design of small space-craft for technological purposes
Present tectonics of the southeast of Russia as seen from GPS observations
The present tectonics of Northeast Asia has been extensively investigated during the last 12 yr by using GPS techniques. Nevertheless, crustal velocity field of the southeast of Russia near the northeastern boundaries of the hypothesized Amurian microplate has not been defined yet. The GPS data collected between 1997 February and 2009 April at sites of the regional geodynamic network were used to estimate the recent geodynamic activity of this area. The calculated GPS velocities indicate almost internal (between network sites) and external (with respect to the Eurasian tectonic plate) stability of the investigated region. We have not found clear evidences of any notable present-day tectonic activity of the Central Sikhote-Alin Fault as a whole. This fault is the main tectonic unit that determines the geological structure of the investigated region. The obtained results speak in favour of the existence of a few separate blocks and a more sophisticated structure of the proposed Amurian microplate in comparison with an indivisible plate approach