161. Catalytic hydrocracking reactions of tetralin biomass tar model compound to benzene, toluene and xylenes (BTX) over metal-modified ZSM-5 in ambient pressure reactorAndrii Kostyniuk, David Bajec, Blaž Likozar, 2022, original scientific article Keywords: catalytic hydrocracking reactions, ring opening mechanism, model biomass tar, benzene/toluene/xylenes (BTX), metal-doped HZSM-5 zeolite material, deposited coke deactivation
Published in DiRROS: 10.03.2022; Views: 807; Downloads: 592
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162. Geophysical investigations in the Radovna River Spring area (Julian Alps, NW Slovenia)Anja Torkar, Marjana Zajc, Jure Atanackov, Andrej Gosar, Mihael Brenčič, 2021, original scientific article Abstract: The Radovna River Valley is located in the north-western part of Slovenia in the Julian Alps, where there is an extensive intergranular aquifer whose depth to pre-Quaternary bedrock is unknown. Therefore, to obtain information about the depth of the valley and the geometry of the aquif er two geophysical methods were used in our study; ground penetrating radar (GPR) and seismic reflection method. The low-frequency GPR method has shown to be useful for determining the depth of the groundwater and the predominant groundwater recharge. Also, the high-resolution seismic method provided an insight about the morphology of the pre-Quaternary basement with the deepest point at 141 meters below surface. Measurements of hydrogeological parameters such as groundwater level and river discharge measurements were carried out in the study area. Both data analyses showed that groundwater level and river discharge are highly fluctuatingand rapidly changing, indicating a well-permeable aquifer, implying that such an aquifer is extremely sensitive and vulnerable to extreme climate events. Both the geophysical methods and the hydrogeological information have provided important information about the morphology of the valley and the alluvial aquifer, as well as increasing the knowledge about the Radovna springs system, which will contribute very important information for future hydrogeological studies.
Keywords: Ground penetrating radar, Seismic reflection method, Radovna spring, hydrogeology, aquifer geometry, glacial valley, groundwater table
Published in DiRROS: 09.03.2022; Views: 899; Downloads: 343
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163. Sistem opredelitve rabe tal na ploskvah nacionalne gozdne inventure 2022 (gozd/drugo gozdno zemljišče/negozd) : seminar : online seminar v organizaciji Oddelka za načrtovanje in monitoring gozdov in krajine, Gozdarski inštitut Slovenije, Ljubljana, 31. 1. in 1. 2. 2022, onlineAnže Martin Pintar, Andrej Grah, Mitja Skudnik, 2022, other performed works Keywords: gozdarstvo, gozdovi, negozd, definicija gozda, druge gozdne površine, nacionalna gozdna inventura, gozdna inventura, fotointerpretacija, gozdni rob, raba tal, terenski popis
Published in DiRROS: 24.02.2022; Views: 1059; Downloads: 0 |
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166. Primerjava različnih regresijskih modelov za napovedovanje debelinskega priraščanja jelkeAndrej Ficko, Vasilije Trifković, 2021, original scientific article Abstract: V prispevku na primeru jelke predstavljamo sedem regresijskih modelov za modeliranje priraščanja dreves s podatki periodičnih meritev na stalnih vzorčnih ploskvah. Poleg polinomske regresije, modela z dodanim šumom in mešanega linearnega modela, predstavljamo regresijo z naravnimi zlepki in tri modele z omejenimi odvisnimi spremenljivkami: truncated regression, tobit regression in grouped data regression. Modele lahko uporabimo, kadar se zaradi načina merjenja in zaokroževanja podatkov ter hierarhičnosti podatkov srečamo z rezanimi ali krnjenimi slučajnostnimi spremenljivkami, nezveznostjo odvisne spremenljivke in pristransko oceno prirastka. Pri pojasnitvi debelinskega priraščanja 21.013 jelk na 4.405 ploskvah v obdobju 1990–2014 v raznomernih gozdovih v dinarskih jelovo-bukovjih so vsi modeli pokazali podoben vpliv prsnega premera, sestojne temeljnice, temeljnice debelejših dreves, raznomernosti, nagiba, nadmorske višine in le manjše razlike v regresijskih koeficientih in merah prileganja. Največje povprečne napovedi prirastka daje tobit model, mešani model pa se najbolj prilega podatkom. V primerjavi z drugimi modeli model z zlepki kaže na počasnejše zmanjševanje prirastka zelo debelih jelk po kulminaciji prirastka.
Keywords: prirastek, multipla regresija, statistične metode, tobit model, krnjenje, mešani modeli, jelka, modeli z omejenimi odvisnimi spremenljivkami, stalne vzorčne ploskve
Published in DiRROS: 01.12.2021; Views: 3478; Downloads: 1989
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167. Analiza učinkovitosti hiperbarične in radijsko frekvenčne terapije športnih mikropoškodb : končno poročilo o rezultatih raziskaveBoštjan Šimunič, Jan Čžan Stermšek, Monika Doles, Andrej Švent, 2021, final research report Keywords: športniki, vadba, intenzivna vadba, bolečine, hiperbarična terapija, radijsko frekvenčna terapija
Published in DiRROS: 12.11.2021; Views: 1184; Downloads: 306
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168. Gozd in les kot priložnost za regionalni razvoj : Festival lesa, Kočevje, 20192019, proceedings of professional or unreviewed scientific conference contributions Keywords: lesarstvo, klimatske spremembe, Slovenija, gozdovi, gozdnogospodarsko načrtovanje, državni gozdovi, raba zemljišč, les, ekosistemske storitve, lesnopredelovalna industrija, krožno gospodarstvo, trajnostni razvoj, zborniki
Published in DiRROS: 10.11.2021; Views: 1507; Downloads: 1106
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169. Genetic aspects linked to production and use of forest reproductive material (FRM) : collecting scientific evidence for developing guidelines and decision support tools for effective FRM managementDušan Gömöry, Katri Himanen, Mari Mette Tollefsrud, Claes Uggla, Hojka Kraigher, Sandor Bordacs, Paraskevi Alizoti, Stuart A'Hara, Aline Frank, Gunnar Friis Proschowsky, Josef Frýdl, Thomas Geburek, Monique Guibert, Mladen Ivanković, Ana Jurše, Stuart Kennedy, Jan Kowalczyk, Heike Liesebach, Tiit Maaten, Andrej Pilipović, Roberta Proietti, Volker Schneck, Alain Servais, Brynjar Skúlason, Christoph Sperisen, Frank Wolter, Tefide Yüksel, Michele Bozzano, 2021, dictionary, encyclopaedia, lexicon, manual, atlas, map Abstract: This report summarises the current state of knowledge in genetic aspects linked to the production and use of forest reproductive material (FRM). The first chapter describes the different categories of FRM, considers the strategic choice between artificial and natural regeneration in the face of climate change, and articulates the need for and purposes of FRM. Chapter 2 outlines the FRM production chain, in terms of: i) FRM approval, management, collection and certification (seed sources, stands, orchards, plus trees and clones others); ii) Testing standards and examples; iii) Effect of seed and seedling material not intended for use as FRM on forest genetic resources; iv) Breeding effects on basic material including conservation strategy; v) Harvesting, processing and storage of seeds; vi) Nursery practices; vii) Certification and Traceability; and viii) FRM Trading and Transport. Chapter 3 examines FRM with regard to: i) Forest regeneration strategies % especially considering climate change, and ii) Assisted migration and available decision support tools. Chapter 4 provides a detailed overview of forest establishment methods, and chapter 5 looks at keeping records of seed origin to improve forest management. The final chapter offers 38 recommendations arising from the review. This work is the result of an international collaboration rooted in EUFORGEN for more than two decades. It is built on the firm belief that the genetic element is decisive for the creation of a resilient forest capable of surviving threats and adapting to changes, thus enabling the evolution of ecosystems and the conservation of the productive landscape.
Keywords: forest reproductive material
Published in DiRROS: 05.11.2021; Views: 984; Downloads: 525
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170. Dopolnitev proizvodno-emisijskih modelov sektorjev : gozdarstvo, kmetijstvo, odpadki in prometMihael Gabrijel Tomšič, Fouad Al-Mansour, Stane Merše, Andreja Urbančič, Primož Simončič, Nike Krajnc, Jože Verbič, Viktor Grilc, Muharem Husić, Jože Voršič, Andrej Hanžič, Marjan Seliškar, 2002, treatise, preliminary study, study Keywords: energetika
Published in DiRROS: 03.11.2021; Views: 937; Downloads: 310
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