ПЛАТОН репозиторијум: Recent submissions
Now showing items 741-760 of 1190
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Стратегије интерактивног приступа настави у основној школи
(Учитељски факултет у Призрену - Лепосавић, 2019)Претпоставка квалитета савремене наставе јесте остваривање интерактивног приступа у раду којим се ученицима директно обезбеђује субјекатска позиција у настави и индиректно развијају многоструки квалитети личности значајни ... -
Forage yield of a grass-clover mixture on an acid soil in the third year after soil liming
Soil acidity is one of the most common reasons for low yields of forage crops. This paper analyzes the long-term effect of liming (control - without CaO; 3 t*ha-1 CaO; 6 t*ha-1 CaO) applied to an acid soil (pHH2O 4.8) ... -
The effect of aging of surface non-metallic coatings on the ampacity of medium voltage rectangular bus bars
(The 7th Virtual International Conference on Science, Technology and Management in Energy (eNergetics 2021), 2021-12)There are two major types of non-metallic coatings for bus bars: oil-and epoxy-based coatings. The oil-based coatings have a limited lifespan of a few years, while the epoxy-based ones have a lifespan of over ten years. ... -
Foliar fertilization with phosphorus and potassium in red clover seed production on an acidic soil
A field trial with four red clover cultivars (‘K-39’, ‘K-17’, ‘Una’ and ‘Viola’) was conducted on a leached vertisol acid in reaction (pHH2O 4.8) to assess the effect of foliar treatment with phosphorus and potassium on ... -
Optimal power flow and prices in the electricity market using the hybrid PPSOGSA algorithm
(Conference: International Scientific Conference “UNITECH 2020” – Gabrovo, 2020-11)In this paper, the PPSOGSA algorithm is proposed to optimize the nodal prices and power flows transacted between the tiers of the supply chain (SC) in a deregulated electricity market. The hybrid PPSOGSA algorithm is a ... -
Phasor particle swarm optimization for solving problem of pricing in electricity market
(Conference: International Scientific Conference “UNITECH 2021” – Gabrovo, 2021-11)Minimization of fuel costs in thermal power plants by adjusting electric power outputs from generators represents important problem in power system operation and control. This problem affects also merit order and pricing ... -
THE IMPACT OF AGROECOLOGICAL FACTORS ON MORPHOLOGICAL TRAITS OF MAIZE
Climate changes are one of the crucial issues of modern agriculture. These changes imply the increase in average temperatures and the frequent occurrence of temperature extremes. Such conditions are stressful to maize ... -
The effect of solar radiation on the ampacity of an underground cable with XLPE insulation
(The 4th Virtual International Conference on Science, Technology and Management in Energy (eNergetics 2018), 2018-10)The main purpose of this paper is to quantify the thermal effect of solar radiation on the ampacity of a low voltage underground cable with cross-linked polyethylene (XLPE) insulation. The quantification was performed for ... -
A review on new methods for increasing the ampacity of underground power cables: Cool and photovoltaic pavements
(The 6th International Conference on Renewable Electrical Power Sources (6th ICREPS), Belgrade, Serbia, 2018-10)The introduction of cool and photovoltaic pavements in underground power cable engineering can contribute to reducing global warming and our dependency on fossil fuels. In this case, a cool or photovoltaic pavement would ... -
Seed testing of foliar-fertilised red clover crops after various periods of storage
The aim of the present study was to analyse the effect of foliar fertilisation of red clover (Trifolium pratense L.) crops with cobalt, boron and phosphorus-potassium, which could significantly increased seed yield, on ... -
Increasing the ampacity of underground power cables by an application of photovoltaic pavements," The 6th International Conference on Renewable Electrical Power Sources
(The 6th International Conference on Renewable Electrical Power Sources "6th ICREPS", 2018-10)This article shows that a significant increase in the ampacity of an underground cable line can be achieved, if a photovoltaic pavement in combination with a ventilation channel is applied along the entire length of the ... -
Increasing the ampacity of underground cable lines by optimising the thermal environment and design parameters for cable crossings
(IET Generation, Transmission & Distribution, 2022-02-28)The problem of optimising the thermal environment and design parameters of under-ground cable lines for cable crossings with the aim of increasing the ampacities of cablesis considered in this paper. Particle swarm ... -
Protein and carbohydrate fractions of common vetch-oat mixtures depending on stage of growth and seeding rate in the mixtures
The production and utilization of intercropped legume- cereal bi-crops as ruminant feeds is beneficial for many reasons – legumes are rich in terms of protein concentration, whereas cereals are characterized by higher ... -
Thermal aging management for electricity distribution networks: FEM-based qualification of underground power cables
(Thermal Science, 2022-03)It is well-known that there is no PLAN-DO-CHECK-ACT (PDCA) approach that is used by electricity distribution network operators and asset managers of power cable systems. Accordingly, this paper proposes a novel application ... -
PREDIKTORI RIZIČNOG PONAŠANJA U VEZI SA ZDRAVLJEM STUDENATA
(Praxis medica, Медицински факултет Приштина,, 0350-8773, 2018., 2019-11-29)Uvod: Najčešći uzroci morbiditeta mladih koji imaju dalekosežan uticaj na zdravlјe, razvoj i celokupan život odrasle osobe su poremećaji nastali kao posledica rizičnog ponašanja. Cilj: Osnovni cilj rada bio je da se ... -
A Novel Procedure for Quick Design of Off-Grid PV Water Pumping Systems for Irrigation
(Elektronika ir Elektrotechnika, 2021-03)It is known that meteorological variables from meteorological online services can be used for the design of photovoltaic (PV) water pumping systems for irrigation. The software LORENTZ COMPASS in such a manner uses as ... -
Eliminating the effect of hot spots on underground power cables using cool pavements
(Electrical Engineering, 2019-10-24)It is well known that hot spots limit the ampacities of underground power cables. There are many commonly applied methods to control the thermal environment in hot spots of underground power cables. However, applications ... -
GA-based approach for optimal placement and sizing of passive power filters to reduce harmonics in distorted radial distribution systems
(Electrical Engineering, 2019-09)This paper presents a Genetic Algorithm-based approach for optimal placement and sizing of passive power filters to mitigate harmonics in radial distribution systems with linear and nonlinear loads. The problem is formulated ... -
A transient thermal model for flat-plate photovoltaic systems and its experimental validation
(ELEKTRONIKA IR ELEKTROTECHNIKA, 2019-04)This paper describes a transient thermal model that accurately predicts the temperature of the open-rack mounted photovoltaic (PV) modules under varying atmospheric conditions. The PV module temperature is predicted by ... -
A thermal model for open-rack mounted photovoltaic modules based on empirical correlations for natural and forced convection
(Thermal Science, 2019-01-12)This paper proposes a thermal model for calculating the temperature of open-rack mounted photovoltaic (PV) modules taking into account the meteorological conditions, position (i. e. the inclination of one PV module and the ...