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1.
2.
THE INCIDENCE OF NEW ECOSYSTEMS (EE – EMERGING ECOSYSTEMS) IN THE KARST BIOSPHERE RESERVE
Mariya Perepelytsya, Ӧzkan Karaçam, Merisa Kapić, Nika Feigina, Barbara Šavli, Matjaž Reya, Matej Pogorelc, Klemen Cotič, 2017, other monographs and other completed works

Abstract: The need of wood for building and heating, the extensive grazing and population growth in the 18th and 19th centuries led to turning the Karst area in Slovenia into a bare land. In the 19th century organised reforestation started which was successfully performed with Black pine (Pinus nigra J. F. Arnold). Later on, the reforestation was replaced by the process of spontaneous afforestation. The successfulness of reforestation with Black pine also made it possible for the native tree species to grow. The abandoning of the use of agricultural land also contributes to the spontaneous afforestation. In this project we determined the changes in forest cover through time. We used aerial photographs from the years 1957, 1975, 1985 and 2015. By drawing polygons on the maps in the QGIS programme on the areas that are covered with forests, are overgrown or are used for agricultural purpose we compared the areas from the maps of different years. We found out that the area covered with forest had increased by more than 50 % from the year 1957 to 2015. The increase in the area of forest cover due to afforestation provides new habitats for fauna and flora to live in.
Found in: ključnih besedah
Keywords: Karst, afforestation, new habitat, Black pine, human impact
Published: 07.11.2017; Views: 3531; Downloads: 0
.pdf Fulltext (1,80 MB)

3.
Observations of the release of non-methane hydrocarbons from fractured shale
Roberto Sommariva, Robert S Blake, Robert J Cuss, Rebecca L Cordell, Jon F Harrington, Iain R White, Paul S Monks, 2014, original scientific article

Abstract: The organic content of shale has become of commercial interest as a source of hydrocarbons, owing to the development of hydraulic fracturing ("fracking"). While the main focus is on the extraction of methane, shale also contains significant amounts of non-methane hydrocarbons (NMHCs). We describe the first real-time observations of the release of NMHCs from a fractured shale. Samples from the Bowland-Hodder formation (England) were analyzed under different conditions using mass spectrometry, with the objective of understanding the dynamic process of gas release upon fracturing of the shale. A wide range of NMHCs (alkanes, cycloalkanes, aromatics, and bicyclic hydrocarbons) are released at parts per million or parts per billion level with temperature- and humidity-dependent release rates, which can be rationalized in terms of the physicochemical characteristics of different hydrocarbon classes. Our results indicate that higher energy inputs (i.e., temperatures) significantly increase the amount of NMHCs released from shale, while humidity tends to suppress it; additionally, a large fraction of the gas is released within the first hour after the shale has been fractured. These findings suggest that other hydrocarbons of commercial interest may be extracted from shale and open the possibility to optimize the "fracking" process, improving gas yields and reducing environmental impacts.
Found in: ključnih besedah
Summary of found: ...Environmental impact, Hydraulic fracturing, Mass spectrometry...
Keywords: Environmental impact, Hydraulic fracturing, Mass spectrometry
Published: 18.07.2019; Views: 1856; Downloads: 0
.pdf Fulltext (2,47 MB)

4.
Introduction to Dependence Relations and Their Links to Algebraic Hyperstructures
Irina Cristea, Juš Kocijan, Michal Novak, 2019, original scientific article

Found in: ključnih besedah
Keywords: hyperoperation, hypergroupoid, dependence relation, influence, impact
Published: 24.09.2019; Views: 1834; Downloads: 88
.pdf Fulltext (279,83 KB)

5.
6.
Symmetry in the Theory of Dependence Relations
Irina Cristea, 2021, published scientific conference contribution abstract

Found in: ključnih besedah
Summary of found: ...dependence relation, degree of influence, degree of impact, fuzzy set, hypercompositional algebra...
Keywords: dependence relation, degree of influence, degree of impact, fuzzy set, hypercompositional algebra
Published: 10.08.2021; Views: 699; Downloads: 25
.pdf Fulltext (216,43 KB)

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