11. Časovna študija sestojne inventure z aplikacijo MOTI na zasebni gozdni posestiAndrej Ficko, Helena Smrekar, 2023, original scientific article Abstract: Z razvojem digitalnih orodij postaja izvedba gozdne inventure na zasebni gozdni posesti dostopnejša, hitrejša in preglednejša. V raziskavi smo v okviru projekta EIP Digigozd na šestih gozdnih posestih proučevali porabo časa za merjenje sestojne temeljnice, števila dreves in zgornje sestojne višine s slovensko različico mobilne aplikacije MOTI ter hitrost učenja merilcev. Lastniki so izvedli meritve na 149 vzorčnih ploskvah v štirinajstih sestojih, pretežno debeljakih. Zbrane meritve smo analizirali na sestojni ravni, ravni posesti in skupaj. Pri skoraj vseh lastnikih se je izkazal negativen eksponentni učinek učenja na porabo časa za inventuro, ki je v povprečju znašala 10 min/ploskev. Na podlagi mešanega linearnega modela smo ugotovili, da ob upoštevanju razlik med lastniki in med sestoji na porabo časa značilno vpliva le zaporedna številka meritve. To pomeni, da vsaj v začetni fazi, ko merilec še ni izurjen, učenje prevladujoče vpliva na hitrost izvajanja meritev. Na podlagi časovne študije in izkušenj, ki smo jih pridobili v projektu, nameravamo nadaljevati z razvojem orodij za podporo pri gospodarjenju na zasebni gozdni posesti.
Keywords: časovna analiza, gozdna inventura, mobilne aplikacije, zasebna gozdna posest, gozdnogospodarsko načrtovanje, lastniki gozdov
Published in DiRROS: 03.10.2023; Views: 314; Downloads: 78
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13. An electrochemical and spectroscopic study of surfaces on bronze sculptures exposed to urban environmentDajana Mikić, Helena Otmačić Ćurković, Tadeja Kosec, Neven Peko, 2021, original scientific article Abstract: Polluted urban environment enhances dissolution of patina and underlying bronze material of recent and historical bronze sculptures exposed outdoors. In this work, two bronze statues, situated in one of the most polluted Croatian cities, were examined in order to characterize composition of patina and its electrochemical stability. The composition of patina on several positions on each sculpture was determined by EDS, Raman spectroscopy, and FTIR measurements. Electrochemical impedance spectroscopy measurements were conducted in order to evaluate the corrosion stability of both patina and underlying bronze. Results obtained in this work show that the two examined bronze sculptures were covered with patina layer that was mainly composed of copper sulfides and sulphates, which is in accordance with the high concentrations of H2S and SO2 in the atmosphere. However, the variations in the appearance of FTIR and Raman spectra revealed that the amount of each species differed from spot to spot, as well as the fact that other compounds, such as carbonates, were present at some areas. This difference in patina composition was reflected in electrochemical behavior as observed by electrochemical impedance spectroscopy.
Keywords: bronze, corrosion, spectroscopy, FTIR, Raman, EIS, open access
Published in DiRROS: 16.05.2023; Views: 293; Downloads: 173
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14. Innovative circular economy models for the european pulp and paper industry : a reference framework for a resource recovery scenarioAmaia Sopelana, Camille Auriault, Anurag Bansal, Karmen Fifer Bizjak, Helena Paiva, Christian Maurice, Gunnar Westin, Javier Rios, Asier Oleaga, Antonio Cañas, 2021, original scientific article Abstract: According to recent literature in the field of sustainability, the circular economy (CE) appears to be a thriving opportunity for creating new businesses, although less attention has been paid to the form in which its principles fit into a comprehensive framework that enables companies to design it in a practical way. This paper presents the methodology that has been adopted to pave the way to a coherent reference framework for circular business model innovation and its outstanding design and implementation, taking into consideration the entire value and supply chain. A unique analysis of recent innovations in circular economy models is provided herein, together with an exhaustive analysis of those elements that enable or hinder their implementation. The main interactions among all those critical elements influencing how organisations innovate and operate cooperatively within a CE ecosystem are also evaluated. In addition, a study of five industrial cases in the pulp and paper industry allowed searching for industrial insights and empirical evidence of the relevance of those elements, including observation, document analysis, and interviews. Lastly, the main outcomes of this research are illustrated using the CE reference framework designed when applied to the aforementioned industrial cases, and relevant insights into future improvements are also provided.
Keywords: circular economy business models, pulp and paper industry, construction sector, open access
Published in DiRROS: 12.05.2023; Views: 308; Downloads: 172
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15. Udomačevanje tujega : predmeti za uživanje opija v Skuškovi zbirkiHelena Motoh, 2022, original scientific article Abstract: Izjemno obsežna zbirka predmetov, ki sta jo iz Pekinga v Ljubljano leta 1920 prinesla mornariški častnik Ivan Skušek ml. in njegova žena, Japonka Tsuneko Kondo Kawase, vključuje pipe za kajenje opija, več gorilnikov za opij in še nekaj drugih pripomočkov za uživanje te opojne substance. Predmeti so umetelno okrašeni z zapletenimi motivi. Čeprav je to osrednja tema članka, je namen slednjega tudi umestiti to specifično estetiko v kontekst in raziskati kulturni okvir, v katerem je prišlo do vnosa preučevanih predmetov v Evropo. V prvem delu tako avtorica predstavi zgodovino uživanja opija na Kitajskem, v drugem analizira prvine estetike kitajskega pribora za uživanje opija, v tretjem, osrednjem delu besedila, pa podrobneje razčleni predmete iz Skuškove zbirke, povezane z uživanjem opija, ter motive in simbole, s katerimi so okrašeni. V sklepnem delu poskuša predstaviti pripomočke za uživanje opija, okrašene s tradicionalnimi kitajskimi motivi in simboli, kot zanimivo utelesitev kompleksnega in dinamičnega odnosa do tujega, prepovedanega in fascinantnega in kot dober primer ikonografske udomačitve te tujosti.
Keywords: vzhodnoazijske zbirke, Skuškova zbirka, Ivan Skušek ml., opijski predmeti, kitajska ikonografija, Kitajska
Published in DiRROS: 28.02.2023; Views: 323; Downloads: 182
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17. Zapleti zdravljenja z obsevanjemHelena Barbara Zobec Logar, 2023, published scientific conference contribution Abstract: V ospredju neželenih učinkov pri obsevanju medenice zaradi raka prostate so gastrointestinalni in genitourinarni zapleti. Pri teleradioterapiji so izrazitejši na danki in črevesju, pri brahiterapiji pa so izrazitejše obstruktivne težave z uriniranjem. Motnje v erektilni funkciji so največkrat posledica sočasnega hormonskega zdravljenja in izhodiščnega stanja pred obsevanjem. Večina neželenih učinkov je blagih, resni pozni zapleti stopnje G3 ali več so prisotni v manj kot 5 %.
Keywords: rak prostate, onkološko zdravljenje, obsevanje
Published in DiRROS: 03.02.2023; Views: 377; Downloads: 92
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20. Oligometastatski rak 2022 : [strokovno srečanje2022, proceedings of professional or unreviewed scientific conference contributions Abstract: Oligometastatski rak predstavlja v zdravljenju onkoloških bolnikov posebno entiteto. Čeprav gre v osnovi za metastatsko bolezen, pa novejši pristopi in novi načini zdravljenja omogočajo izboljšanje kontrole bolezni in preživetja. Čedalje agresivnejše zdravljenje s sistemsko terapijo, imunoterapijo, tarčnimi zdravili, obsevanjem, operativnim zdravljenjem in številnimi drugimi pristopi, to bolezen postavlja v povsem novo luč in verjetno ni daleč čas, ko bomo rekli, da je oligometastaski rak ozdravljiv.
Published in DiRROS: 13.12.2022; Views: 537; Downloads: 319
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