Zobrazeno 1 - 10
of 673
pro vyhledávání: '"Pavlović R"'
Publikováno v:
Serbian Astronomical Journal, Vol 2020, Iss 201, Pp 39-48 (2020)
This paper describes an artificial neural network for classification of asteroids into families. The data used for artificial neural network training and testing were obtained by the Hierarchical Clustering Method (HCM). We have shown that an arti
Externí odkaz:
https://doaj.org/article/1226a6b05c6748a19a8e27869a9dc726
Publikováno v:
Serbian Astronomical Journal, Vol 2017, Iss 194, Pp 101-107 (2017)
In this paper we study the problem of how to determine the coordinates of a point a telescope is directed to on the basis of data obtained from a 9DOF sensor board. On the 9DOF sensor board there are three sensors: the gyroscope, accelerometer and
Externí odkaz:
https://doaj.org/article/b4f3cd5a40ed49b290a46a851e662705
Publikováno v:
Acta Agriculturae Serbica, Vol 19, Iss 37, Pp 3-14 (2014)
The objective of this study was to evaluate the effect of organic fertilizer (cattle manure) and monoammonium phosphate (Russian MAP-R and Serbian MAP-S) on available Cd levels in soil and Cd uptake by lettuce plants grown on vertisol and fluvisol. F
Externí odkaz:
https://doaj.org/article/d2eb98fd2a414e9793c82b4767956661
Publikováno v:
Serbian Astronomical Journal, Vol 2014, Iss 188, Pp 1-21 (2014)
The past several decades have seen accelerating progress in improving binary stars fundamental parameters determinations, as new observational techniques have produced visual orbits of many spectroscopic binaries with a milli arcsecond precision.
Externí odkaz:
https://doaj.org/article/e4974dca0bca4a8894434da42d9e653e
Autor:
Pavlović N., Zdravković Jasmina, Cvikić D., Đorđević R., Zdravković M., Pavlović R., Savić Dubravka
Publikováno v:
Acta Agriculturae Serbica, Vol 19, Iss 37, Pp 41-46 (2014)
Market significance of cucumber for fresh consumption and the new technology of growing make it one of the most attractive vegetable variety. Interest of producers is higher every day, while the selection of new varieties is very low. The aim of this
Externí odkaz:
https://doaj.org/article/909c1712e30d47ee800427e58db351c4
Publikováno v:
Serbian Astronomical Journal, Vol 2013, Iss 186, Pp 65-76 (2013)
We discuss the software developed for the purpose of determining the relative coordinates (position angle θ and separation ρ) for visual double or multiple stars. It is based on application of Fourier transforms in treating CCD frames of these s
Externí odkaz:
https://doaj.org/article/062a46fe6c37412a8f3293c36490fe57
Publikováno v:
Serbian Astronomical Journal, Vol 2012, Iss 184, Pp 97-104 (2012)
The focal length of a telescope is an important parameter in determining the angular pixel size. This parameter is used for the purpose of determining the relative coordinates (angular separation and positional angle) of double and multiple stars,
Externí odkaz:
https://doaj.org/article/7ff7353684d647ef86e62f237218f23a
Autor:
Pavlović R., Grujić Marica, Dojnov Biljana, Vujčić Miroslava, Nenadović Vera, Ivanović Jelisaveta, Vujčić Z.
Publikováno v:
Archives of Biological Sciences, Vol 64, Iss 2, Pp 757-765 (2012)
The expression and distribution of digestive cellulases along the midgut of Cerambyx cerdo larvae were analyzed for the first time and are presented in this article. Four groups of larvae were examined: larvae developed in the wild; larvae taken from
Externí odkaz:
https://doaj.org/article/430093c22f87498a906ab2dd037ddaa6
Publikováno v:
Serbian Astronomical Journal, Vol 2010, Iss 180, Pp 103-107 (2010)
Using the 2 m telescope of the Bulgarian National Astronomical Observatory at Rozhen observations of 30 double or multiple stars were carried out during two half nights on July 20 and 21, 2009. This is the fourth series of measurements of CCD frames
Externí odkaz:
https://doaj.org/article/8cc85267dcca4254b314027edf23c161
Autor:
Pavlović R.
Publikováno v:
Serbian Astronomical Journal, Vol 2007, Iss 174, Pp 53-60 (2007)
To apply the theorem of Nekhoroshev (1977) to asteroids, one first has to check whether a necessary geometrical condition is fulfilled: either convexity, or quasi-convexity, or only a 3-jet non-degeneracy. This requires computation of the derivatives
Externí odkaz:
https://doaj.org/article/b539b748963748e1986d1c07716b3f1c