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Search Results: 1 - 10 of 739 matches for " Nikoli? Jugoslav "
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Dynamics of ozone layer under Serbia and solar activity: Previous statement
Duci? Vladan,NikoliJugoslav
Glasnik Srpskog Geografskog Dru?tva , 2008, DOI: 10.2298/gsgd0801070d
Abstract: The aim of this paper is to identify ozone layer dynamics under Serbian area, as well as possible relations of change in stratospheric ozone concentration with some parameters of solar activity. During the period 1979-2005, the statistical decrease of ozone concentration was noticed under Serbian territory cumulatively for 24.5 DU (7.2%), apropos 9.4 DU (2.8%) by decade. These changes are consistent with the changes in surrounding countries. From absolute minimum 1993, flexible trend of ozone layer pentad values validate hypotheses of its recovery. Correspondence of ozone thickness extreme period with Wolf's number and with the greatest volcanic eruptions shows that interannual variations of stratospheric ozone concentration are still in the function of natural factors above all, as are solar and volcanic activities. Investigation of larger number solar activity parameters shows statistically important antiphase synchronous between the number of polar faculae on the Sun and stratospheric ozone dynamics under Serbia. Respecting that relation between these two features until now isn't depicted, some possible causal mechanisms are proposed.
The study of the natural characteristics of the basin as a function of forecasting erosion and deposition processes on the example of the selected basin
NikoliJugoslav,Nikoli? Milena,Nikoli? ?or?e
Journal of the Geographical Institute Jovan Cvijic, SASA , 2012, DOI: 10.2298/ijgi1202015n
Abstract: For an integral perception of the possibility of forecasting erosion-deposition processes and their consequences it is essential to analyze the factors of erosion and deposition. The attempt was made in the paper to analyze quantitative and qualitative impact of some of the most important factors of erosion-deposition processes. The analysis was performed through a multidisciplinary approach, on the example of the Zapadna Morava River upper basin. The methodology of research encompasses an application of the adequate knowledge from the areas of meteorology, geomorphology, hydrogeology, spatial planning, economic geography, forestry, hydrology and environmental protection. The analysis encompasses meteorological factors, terrain characteristics and anthropogenic factors. The importance of the analysis and forecasts of the investigated processes for the industry, economy, spatial planning and environmental protection was emphasized.
Spatial distribution of coefficients for determination of global radiation in Serbia
NikoliJugoslav L.,Nikoli? ?or?e J.
Nuclear Technology and Radiation Protection , 2012, DOI: 10.2298/ntrp1203254n
Abstract: The aim of this paper is a creation of the spatial distribution of the corresponding coefficients for the indirect determination of global radiation using all direct measurements data of this shortwave radiation balance component in Serbia in the standard climate period (1961-1990). Based on the global radiation direct measurements data recorded in the past and routine measurements/observations of cloudiness and sunshine duration, the spatial distribution coefficients maps required for calculation of global radiation were produced on the basis of sunshine/cloudiness in an arbitrary point on the territory of Serbia. Besides, a specific verification of the proposed empirical formula was performed. This paper contributes to a wide range of practical applications as direct measurements of global radiation are relatively rare, and are not carried out in Serbia today. Significant application is possible in the domain of renewable energy sources. The development of method for determination of the global radiation has an importance from the aspect of the environmental protection; however it also has an economic importance through applications in numerous commercial projects, as it does not require special measurements or additional financial investments.
Changes of Danube discharge parameters at Or ava hydrological station: In the period 1841-2000
Duci? Vladan,NikoliJugoslav,Dragi?evi? Slavoljub
Glasnik Srpskog Geografskog Dru?tva , 2006, DOI: 10.2298/gsgd0601035d
Abstract: The aim of this research was to determine long-term trend of discharge, over its different parameters. Hydrological station Or ava is selected not just because of series’ length but also reliabilities of observation. By analyzing data, we exclude possible local and regional anthropogenic influences on discharge. Trend analyzes of all parameters of the Danube discharge near Or ava hydrological station in the period of 160 years show increase of discharge and decrease of extremeness.
The analysis of precipitation conducted on the upper watershed of the West Morava river
NikoliJugoslav,Duci? Vladan,Dragi?evi? Slavoljub
Glasnik Srpskog Geografskog Dru?tva , 2005, DOI: 10.2298/gsgd0501019n
Abstract: Precipitation is one of the basic elements of the water balance and its analysis is of the crucial importance for many scientific areas. The analysis of precipitation, conducted on the upper part watershed of the West Morava River, was done in the complex way, with the use of the appropriate numerical model. In this way, among other things, orographic and dynamic effects on the explored terrain are taken into consideration.
Methodological spot of establishing silt deposit concentration in Serbian rivers
Dragi?evi? Slavoljub,Manojlovi? Predrag,NikoliJugoslav
Glasnik Srpskog Geografskog Dru?tva , 2007, DOI: 10.2298/gsgd0701015d
Abstract: Recent methodology of sampling and establishing silt deposit concentration in Serbian rivers is associated to numerous deficiencies. Daily concentrations of this type of river deposit on the most of the hydrological gauges were obtained on the base of only one measurement, which takes into consideration the matter of representative ness of those samples. Taking the samples of deposit in one point on the profile is little bit problematic because of dispersion of the obtained results. Very important matter is the question of choice of the sampling location. This analyses of data may lead to serious spots in calculating total carried deposit. From the above mentioned reasons, we decided to take precise measurements of silt deposit concentration as well as to establish methodological spots of measurements. The results of these measurements are analyzed and presented in this paper.
Possibility of exploitation of natural and geographic conditions of Zlatibor and Zlatar for the development of ecotourism and health tourism
Dragovi? Ranko,Filipovi? Ivan,NikoliJugoslav
Glasnik Srpskog Geografskog Dru?tva , 2009, DOI: 10.2298/gsgd0901115d
Abstract: The possibility of tourist values exploitation of Zlatibor and Zlatar is directly and indirectly dependent on natural conditions. The aim of this work is to recognize general natural conditions and specifities the values of which enable planning of rational and sustainable tourist exploitation. The first part of the paper is aimed to the analysis of natural and geographic characteristics as ecotourism resources. The second part deals with analysis of weather types which determine the parameters of health tourism and ecotourism of Zlatibor and Zlatar. Planning of seasonal distribution of different tourism types, especially health tourism, resulted from this analysis.
Chemical erosion and hydrologic budget for the Susure karst plateau
Niki? Zoran,NikoliJugoslav,Risti? Ratko,Stojadinovi? Du?an
Glasnik Srpskog Geografskog Dru?tva , 2010, DOI: 10.2298/gsgd1004069n
Abstract: The karst plateau of Susure, about 4.5 km2 in surface area, is situated on the Jadovnik eastern offset, western Serbia. The plateau is a morphologic unit higher 15 m to 30 m than the surrounding terrain. The unit consists of crushed and karstified Middle Triassic limestones. Numerous hydrogeological and geomorphologic features of the plateau are attractive for visitors in this economically underdeveloped country. Rocks building up the surrounding terrain are largely peridotites. Surface streams flow neither into nor off the plateau. Atmospheric precipitations discharge to evapotanspiration and filtration underground. More than eighteen constant springs at the limestone/peridotite tectonic contact drain fracture aquifers on the karst plateau border. Measured precipitations and springflows were the input and output data for accounting water budget of an aquifer of Middle Triassic limestones in the Susure plateau.
An astrophysical analysis of weather based on the solar wind parameters
NikoliJugoslav L.,Radovanovi? Milan M.,Milija?evi? Dragana P.
Nuclear Technology and Radiation Protection , 2010, DOI: 10.2298/ntrp1003171n
Abstract: The paper represents an attempt to establish whether the specific processes on the Sun had preceded the sudden weather condition changes in Torino for a selected time period by using the method of analogy. The analysis represents a test on the heliocentric approach, i. e., case analysis which is selected arbitrarily. The results of Mann-Whitney U test on the global level are the basis of the approach to the analysis. In case when 100 MeV protons are observed, the significant difference exists only between the day before the origin of the disturbance and the second day after the origin. At protons in the energy range of 10 MeV, the significant difference exists between the second and the first day before the origin of the disturbance, the day in which it came to the disturbance of the atmosphere, as well as the day after that. Observing 1 MeV protons, the significant difference exists between the second day before the origin of the disturbance in the atmosphere and the next three days (the day before the origin, the day of the origin, and the day after the origin of the disturbance).
Soil gas mapping in the vicinity of Nikola Tesla thermo power plant disposal field
NikoliJugoslav L.,Veselinovi? Nenad ?.,Tollefsen Tore B.,?elikovi? Igor T.
Nuclear Technology and Radiation Protection , 2010, DOI: 10.2298/ntrp1001037n
Abstract: This paper presents the results of identification of natural ionizing irradiation in the vicinity of Nikola Tesla B power plant ash disposal field. The investigations have comprised the determination of natural gas (radon and thoron) activities with a passive discriminative nuclear track detector (CR 39) in the air column of the depth of 80 cm in the soil. The determination of gamma dose rate has been given as well, including the corresponding GPS coordinates of 28 measuring points.
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