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1.
Large sets of long distance equienergetic graphs
Dragan Stevanović, 2009, original scientific article

Abstract: Distance energy of a graph is a recent energy-type invariant, defined as the absolute deviation of the eigenvalues of the distance matrix of the graph. Two graphs of the same order are said to be distance equienergetic if they have equal distance energy, while they have distinct spectra of their distance matrices. Examples of pairs of distance equienergetic graphs appear in the literature already, but most of them have diameter two only. We describe here the distance spectrum of a special composition of regular graphs, and, as an application, we show that for any ▫$n \ge 3$▫, there exists a set of ▫$n + 1$▫ distance equienergetic graphs which have order ▫$6n$▫ and diameter ▫$n - 1$▫ each.
Found in: ključnih besedah
Summary of found: ...Distance energy of a graph is a recent energy-type...
Keywords: graph theory, distance spectrum, distance energy, join, regular graphs
Published: 15.10.2013; Views: 1509; Downloads: 67
URL Full text (0,00 KB)

2.
Energy minimizing mountain ascent
Gašper Jaklič, Tadej Kanduč, Selena Praprotnik, Emil Žagar, 2012, original scientific article

Abstract: In this article, an optimal mountain ascent is studied as a particular problemof a human walking over a rugged terrain. First, an approximation of the terrain is constructed using particular smooth splines-macro-elements. Then a functional measuring the energy consumption along boundary curves of a macro-element is defined. Finally, the corresponding discrete problem of finding the optimal path on a mesh of curves is applied. Numerical results on real-life data indicate that computed paths are a good approximation of hiking paths in nature.
Found in: ključnih besedah
Summary of found: Zadetek v naslovu
Keywords: mountain ascent, macro-element, minimization, energy, curve on a surface
Published: 15.10.2013; Views: 1340; Downloads: 45
URL Full text (0,00 KB)

3.
Biogas energy development in Slovenia
Štefan Bojnec, Drago Papler, 2013, original scientific article

Abstract: This paper analyses the development of the biogas energy production and use in Slovenia. The major concern is given to ecological, economic and technical determinants in decision making process for selection among alternative biogas energy production plants and use of energy for heating and electricity. The investments into the biogas plants have reduced ecological problems from large environmental polluters in urban and rural areas. Among them are sewage systems, food wastes, wastes from large-scale animal farms, and some other wastes from food-processing and food consumption places. The measures of economic policy, particularly guaranteed prices for purchased electricity from biogas production plants are presented that have contributed to the development of green energy production.
Found in: ključnih besedah
Summary of found: Zadetek v naslovu
Keywords: biogas energy, ecology, sustainable development, Slovenia
Published: 15.10.2013; Views: 2203; Downloads: 30
URL Full text (0,00 KB)
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4.
Efficient energy use and renewable sources of energy in Slovenia
Štefan Bojnec, Drago Papler, 2011, original scientific article

Abstract: This paper presents unique survey results with opinions on the competitive supply and efficient energy use, sources of energy and renewable sources of energy. The multivariate factor analysis with three common factors confirms the significance of the price competitive supply of energy, energy costs for the economy, and the sustainable energy supply development and ecological perception in the energy use. Among renewable sources of energy, significance is given to the solar, hydro, biogas, and biomass energy, where the energy useand the renewable energy production in agriculture can play a greater role. Education and promotion activities are expressed as important for strengthening the knowledge, awareness, and social responsibility of the sustainable energy development and the use of renewable sources of energy.
Found in: ključnih besedah
Summary of found: Zadetek v naslovu
Keywords: energy, efficiency, renewable sources, operation management, sustainability, social responsibility
Published: 15.10.2013; Views: 2202; Downloads: 26
URL Full text (0,00 KB)
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5.
On spectral radius and energy of complete multipartite graphs
Ivan Gutman, Dragan Stevanović, Masood U. Rehman, 2015, original scientific article

Found in: ključnih besedah
Summary of found: Zadetek v naslovu
Keywords: spectral radius, complete multipartite graph, graph energy, complete split graph, Turan graph
Published: 15.10.2015; Views: 1103; Downloads: 69
URL Full text (0,00 KB)

6.
The use of photovoltaic cells and LED lighting in the design of facades of shopping malls
Marija Pavličić, Sanja Stevanović, Aleksandra Marinković, 2010, published professional conference contribution

Found in: ključnih besedah
Summary of found: ...solar energy, led lighting, photovoltaic panels, facade design, ...
Keywords: solar energy, led lighting, photovoltaic panels, facade design
Published: 15.10.2015; Views: 1068; Downloads: 8
URL Full text (0,00 KB)
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7.
Investment appraisal of a small, grid-connected photovoltaic plant under the Serbian feed-in tariff framework
Sanja Stevanović, Mila Pucar, 2012, original scientific article

Found in: ključnih besedah
Summary of found: ...photovoltaics, solar energy, feed-in tariff, investment appraisal, ...
Keywords: photovoltaics, solar energy, feed-in tariff, investment appraisal
Published: 03.04.2017; Views: 829; Downloads: 90
URL Full text (0,00 KB)

8.
Financial measures Serbia should offer for solar water heating systems
Sanja Stevanović, Mila Pucar, 2012, original scientific article

Found in: ključnih besedah
Summary of found: ...photovoltaics, solar energy, feed-in tariff, investment appraisal, ...
Keywords: photovoltaics, solar energy, feed-in tariff, investment appraisal
Published: 03.04.2017; Views: 717; Downloads: 91
URL Full text (0,00 KB)

9.
Potential solar energy use in a residential district in Niš
Sanja Stevanović, Mila Pucar, Vesna Kosorić, 2009, review article

Found in: ključnih besedah
Summary of found: Zadetek v naslovu
Keywords: solar energy, attached conservatory, photovoltaic canopy, solar water heating system, family house
Published: 03.04.2017; Views: 808; Downloads: 95
URL Full text (0,00 KB)

10.
Drivers of electricity prices in industry and households in Slovenia, Croatia, Austria and Italy
Štefan Bojnec, Drago Papler, 2016, published scientific conference contribution abstract

Found in: ključnih besedah
Summary of found: ...electricity, energy prices, taxes, statistical analysis, regression analysis, Slovenia,...
Keywords: electricity, energy prices, taxes, statistical analysis, regression analysis, Slovenia, Croatia, Austria, Italy
Published: 08.08.2016; Views: 894; Downloads: 38
URL Full text (0,00 KB)
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