1. Tribological evaluation of vegetable ▫$oil/MoS_2$▫ nanotube-based lubrication of laser-textured stainless steelMarjetka Conradi, Bojan Podgornik, Maja Remškar, Damjan Klobčar, Aleksandra Kocijan, 2023 Opis: In the present work, the functionalisation of austenitic stainless steel, AISI 316L surfaces via nanosecond Nd:YAG laser texturing in order to modify the surface morphology with crosshatch and dimple patterns is presented. A tribological analysis under lubrication with sunflower and jojoba oil with and without the addition of a solid lubricant, MoS2 nanotubes, was performed. In conjunction with friction/wear response laser-textured surface wettability, oil spreadability and oil retention capacity were also analysed. It was shown that the crosshatch pattern generally exhibited lower friction than the dimple pattern, with the addition of MoS2 nanotubes not having any significant effect on the coefficient of friction under the investigated contact conditions. This was found in addition to the better oil spreadability and oil retention capacity results of the crosshatch-textured surface. Furthermore, texturing reduced the wear of the stainless-steel surfaces but led to an approximately one order of magnitude larger wear rate of the steel counter-body, primarily due to the presence of hard bulges around the textured patterns. Overall, the crosshatch pattern showed better oil retention capacity and lower friction in combination with different vegetable oils, thus making it a promising choice for improving tribological performance in various environmentally friendly applications.
Ključne besede: tribology, stainless steel, vegetable oil lubrication, MoS2 nanotubes
Objavljeno: 02.02.2024; Ogledov: 1620; Prenosov: 189
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Ogledov v tednu: 642 |
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3. Onkologija : strokovni časopis za zdravnike1997 Opis: Dvojno slepo recenzirana revija, ki izhaja dvakrat letno, je bila ustanovljena leta 1997. Revija Onkologija je odprtodostopna revija in izhaja v skladu s pogoji licence Creative Commons Attribution CC-BY 4.0.
Revija objavlja izvirne in pregledne strokovno-znanstvene članke, predstavitve kliničnih primerov, poročila in klinične smernice v slovenskem jeziku. Naslovi, povzetki in ključne besede prispevkov so prevedeni v angleščino.
Namenjena je hitremu pretoku znanja v vsakdanjo onkološko prakso. Kot multidisciplinaren časopis teoretično in praktično obravnava različna področja onkologije, zlasti primarno in sekundarno preventivo malignih tumorjev, njihovo zgodnje odkrivanje ter zdravljenje, rehabilitacijo in paliacijo pri onkoloških bolnikih, pa tudi socialne in etične probleme.
S strokovno pregledanimi prispevki revija ozavešča klinične zdravnike in jih seznanja z najnovejšimi informacijami in glavnimi smernicami razvoja njihove stroke. Tako omogoča globlje razumevanje in boljšo prakso na ravni vsakodnevnega strokovnega zdravniškega dela. Z izdajo člankov v slovenskem jeziku ima revija ključno vlogo pri razvoju in bogatitvi slovenske medicinske terminologije.
Ključne besede: onkologija, novotvorbe, radiologija, paliativna medicina, terapija z zdravili, metastaze, onkološka epidemiologija
Objavljeno: 14.03.2018; Ogledov: 18388; Prenosov: 1198
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Ogledov v tednu: 188 |
4. Morfološka variabilnost črnike (Quercus ilex L.) v SlovenijiMartin Jež, Robert Brus, Kristjan Jarni, 2024 Opis: V članku je predstavljena črnika (Quercus ilex L.), ena glavnih drevesnih vrst evmediteranske flore na območju Slovenije, kjer raste na razpršenih nahajališčih na severni meji svojega naravnega areala. Glavni namen raziskave je bil preučiti morfološko variabilnost njenih listov. V raziskavo je bilo vključenih sedem naravnih populacij črnike v Sloveniji. Morfometrijska analiza je pokazala veliko variabilnost listov in značilne razlike med populacijami, ki smo jih potrdili pri skoraj vseh preučevanih morfoloških znakih. Na podlagi ugotovljenih morfoloških razlik lahko slovenske populacije razdelimo v tri geografskomorfološke skupine: i) populacije na Goriškem (Sabotin, Sv. Gora in Lijak), ii) Nanos - Osp in iii) populaciji v dolini reke Dragonje. Morfološka variabilnost kot odsev genetske variabilnosti je posledica prilagoditve na lokalne okoljske razmere. Črnika v Sloveniji za zdaj ni ogrožena vrsta, vendar bi bilo pri morebitnih aktivnih varstvenih ukrepih za njeno ohranjanje smiselno čimbolj upoštevati ugotovljene tri geografsko-morfološke skupine.
Ključne besede: črnika, Quercus ilex, morfološka variabilnost, Slovenija, drevesni listi
Objavljeno: 12.09.2024; Ogledov: 160; Prenosov: 585
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Ogledov v tednu: 160 |
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6. An anthology of contemporary ecotheology, philosophy and eco-justice practices2023 Opis: This book is the seventh volume in the ECOTHEE book series, which is published every two years and was first published in the field of ecumenical ecotheology in 2008, following the first ECOTHEE conference (ECOTHEE 08) held in Crete on the occasion of World Environment Day on June 5, 2008. Each ECOTHEE publication collects academic papers and statements by scientists, theologians, sociologists and researchers from different fields under the motto: “Religion and science can provide solutions to sustainability problems.” The articles selected in this seventh volume, ECOTHEE 22, continue the development of ecotheological resources on environmental ethics and sustainable solutions for the common oikos. This book follows the ECOTHEE goal and seeks to engage theology on key ecological concerns from a variety of religious traditions and perspectives. The emphasis is on theological and ethical implications of contributing to a sustainable ecological future. This publication is enriched with additional articles from the 5th SAPREJ conference on sustainable alternatives to poverty reduction and eco-justice and the roles, responsibilities and initiatives of religion, science and civil societies for ecological justice and biodiversity protection, held in Addis Ababa, Ethiopia, in May 2023. /// The present ECOTHEE 22 book is structured into the following sections: Introduction, Section 1: Towards Reconciliation and Justice for all Creation (Eco-ethical Theological and Philosophical Reflections), Section 2: Governance, Politics, Good Practices, and Critical Evaluations of Ecological (In)Justice. /// An “Anthology of Contemporary Ecotheology, Philosophy and Eco-Justice Practices” volume of ECOTHEE delivers chapters on contemporary insights into various religious, spiritual, philosophical reflections towards reconciliation and ecojustice for a sustainable future.
Objavljeno: 11.09.2024; Ogledov: 125; Prenosov: 1296
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Ogledov v tednu: 121 |
7. In vitro evolution driven by epistasis reveals alternative cholesterol-specific binding motifs of perfringolysin OAleksandra Šakanović, Nace Kranjc, Neža Omersa, Saša Aden, Andreja Kežar, Matic Kisovec, Apolonija Bedina Zavec, Simon Caserman, Robert J. Gilbert, Marjetka Podobnik, Ana Crnković, Gregor Anderluh, 2024 Objavljeno: 12.09.2024; Ogledov: 112; Prenosov: 513
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Ogledov v tednu: 112 |
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