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1.
Uporaba steganografije slik na spletu
Nikolaj Gradišnik, 2024, undergraduate thesis

Abstract: Steganografija je postopek skrivanja sporočil v različne medije. V diplomski nalogi smo predstavili primere uporabe slikovne steganografije s poudarkom na metodi najmanj pomembnega bita (LSB) in na metodi diskretne kosinusne transformacije (DCT). Izvedli smo skrivno komunikacijo s pomočjo slik s steganografsko vsebino. Metodo DCT smo implementirali v programskem jeziku Python. Rezultate smo pregledali s stegoanalitičnimi orodji in primerjali njihovo učinkovitost. Opisali smo tudi postopek implementacije lastnega steganografskega algoritma in skrivni prenos podatkov s pomočjo steganografije ter primerjali orodja za stegoanalizo. Ugotovili smo, da so nekateri programi za stegoanalizo specializirani za točno določene metode steganografije. Odkrili smo tudi način skrivanja sporočil v formatih z izgubo, kot je JPEG.
Keywords: Steganografija, diskretna kosinusna transformacija, JPEG, stegoanaliza, skrivna komunikacija.
Published in DKUM: 01.03.2024; Views: 51; Downloads: 1
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2.
Uvajanje lokalne participacije v pedagoški proces
Barbara Pavlakovič, Marko Koščak, 2024

Abstract: Učbenik »Uvajanje lokalne participacije v pedagoški proces« izpostavlja pomen vključenosti različnih skupnosti v procese načrtovanja razvoja turizma. V uvodnem delu je predstavljen sam pojem lokalna participacija oziroma sodelovanje javnosti pri načrtovalskih procesih v turizmu. Pojasnjeni so razlogi in stopnje vključevanja javnosti v razvojne procese. Učbenik nadalje predstavi primere dobre prakse sodelovanja z lokalno skupnostjo iz tujine in Slovenije. Nato se učbenik osredotoči na sam postopek vključevanja javnosti, kjer so opisani posamezni koraki sodelovanja ter podani konkretni nasveti glede organizacije participativnih dogodkov. Še posebej so izpostavljene tehnike javne participacije, ki se jih lahko poslužimo pri sodelovanju z različnimi deležniki. Učbenik na koncu predstavi primere vključevanja lokalne participacije v študijski proces na Fakulteti za turizem Univerze v Mariboru ter poda osnutek delovnega načrta za prihodnje primere vključevanja sodelovanja s skupnostmi v študijski proces.
Keywords: lokalna participacija, načrtovanje turizma, sodelovanje, deležniki, tehnike javne participacije
Published in DKUM: 28.02.2024; Views: 34; Downloads: 2
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3.
Vibration fatigue analysis of two different variants of oil suction pipes
Marko Zadravec, Srečko Glodež, Christian Buzzi, Peter Brunnhofer, Martin Leitner, Janez Kramberger, 2024, original scientific article

Abstract: In order to reduce the overall mass of the product, an improved variant of the engine oil suction pipe in hybrid design is developed and analysed as part of this paper. The vibration fatigue analysis of a simple all-metal suction pipe and the new hybrid suction pipe variant is derived using computer FEA simulations and vibration measurements on the shaker. The hybrid design of the technical components makes it possible to combine different types of materials in order to achieve the best possible properties and behaviours for the components under the influence of external loads. In our case, we combine a suction pipe made of S235JR mild steel with a 3D-printed polyamide intake funnel featuring a grid designed to prevent particles from entering the engine’s lubrication circuit. This design reduces the mass and shifts the centre of gravity closer to the attachment point of the pipe, as well as to the engine crankcase, which has a positive effect on the values of natural frequencies and vibration amplitudes. The main objective of such a hybrid suction pipe is precisely to reduce vibrations, and thus extend the service life of the components.
Keywords: oil suction pipe, vibration fatigue, failure analyses, experimental testing, numerical simulations
Published in DKUM: 26.02.2024; Views: 65; Downloads: 5
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4.
Community participation in the planning of local destination management
Marko Koščak, Tony O'Rourke, Dinko Bilić, 2019, original scientific article

Abstract: In this paper we suggest that modern tourism planning of a destination should include participation from all levels of the community (direct stakeholders, local residents and differing age groups) if the participatory process is to be extensive and universal within the community. We see participatory planning as a critical success factor in seeking to satisfy the requirements of the modern paradigm of sustainability and responsibility in tourism. A community-based approach to tourism development is a prerequisite to sustainability. This focuses on community involvement in the planning and development process, and developing the types of tourism, which generate real social and economic benefits to local communities. Representing the interests and fulfilling the needs of various users is one reason for enabling their participation. Interestingly, children & youth are often overlooked in this regard even though adults may not adequately represent their needs. An important outcome of participatory planning is the process of collective learning that takes place through the underlying process of dialogue. We will refer in the paper to parallel research conducted with colleagues in Slovenia focusing in detail on the role of children & youth in the participatory process of developing sustainable tourism at a local level. This includes a view that planning for sustainable tourism development is an effort to shape the future. Among stakeholders and community participants, children & youth have a significant voice in the future and to a strong degree should have the right to engage in development. The paper seeks to assess the role of participatory structures in planning and development and in the role of children & youth as stakeholders in the planning of local destination management.
Published in DKUM: 22.02.2024; Views: 93; Downloads: 2
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5.
The Challenges of integrating sustainable winegrowing into wine tourism - examples from Slovenia and abroad
Marko Koščak, 2022, independent scientific component part or a chapter in a monograph

Abstract: In an increasingly competitive tourist market, wine and enogastronomy are becoming key elements in the development of tourist products in regions that cultivate grapevines, in Slovenia and internationally. It has been claimed that no kind of tourism can develop in regions without wine; however, from today’s perspective, this claim seems an exaggeration. Nevertheless, enogastronomy is an integral part of many contemporary tourist products. As such, it combines tradition, history and heritage and also improves the recognisability of a given destination on which modern wine tourism products rest. On a global scale, wine tourism is growing, and the forecast for the future is likewise promising. The essence of a wine tourism product is to connect food and wine, i.e. enogastronomic or culinary experiences, and to follow new trends. The trend is to consolidate this segment of tourism services, in particular through leisure activities and relaxation at the destination of choice. Food and wine thus become part of the cultural experience of the visited destination and equal the experience of visiting a museum or a concert or may be an equal component of such a package.
Keywords: cultural experience, wine tourism, enogastronomy, tourist destination, Slovenia
Published in DKUM: 22.02.2024; Views: 58; Downloads: 2
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6.
Cavitation erosion modelling : comparison of different driving pressure approaches
Luka Kevorkijan, Marko Pezdevšek, Ignacijo Biluš, Gorazd Hren, 2023, original scientific article

Abstract: In this paper we compared different driving pressure approaches to calculate the cavitation potential energy from a source, which is transferred to a surface. The first approach used the reference pressure, the second approach used the pressure calculated at each timestep with no averaging, the third approach used the averaged pressure values from all timesteps included in one shedding cycle, and the last approach used pressure values from the steady state simulations results. The results show that for all formulations the averaged pressure values and steady state pressure values give similar results in terms of mean potential power distribution on the hydrofoil surface as in absolute values. The reference pressure approach gave similar results for the derivative and divergence formulation while for the source term the mean potential power distribution on the hydrofoil surface differs and the maximums were near the leading edge. The approach where we used no pressure averaging gave adequate results in terms of mean potential power distribution but differs from other approaches in absolute values which were considerably lower for all potential power formulations.
Keywords: cavitation, erosion potentional, driving pressure, numerical simulations
Published in DKUM: 21.02.2024; Views: 78; Downloads: 2
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7.
Prenova obstoječega načrta šolske poti OŠ Pohorskega odreda Slovenska Bistrica z vidika prometne varnosti in digitalizacije : diplomsko delo visokošolskega strokovnega študijskega programa
Marko Bračič, 2024, undergraduate thesis

Abstract: Varnost v cestnem prometu predstavlja eno od ključnih vidikov kakovosti prometnega sistema, saj vsak udeleženec želi zagotoviti varno potovanje v skladu s svojimi potrebami. Odgovornost za varnost v cestnem prometu ni le na posamezniku, ampak tudi na državi, lokalnih skupnostih in institucijah, kot so osnovne šole. Osnovne šole imajo vpogled in nadzor nad dogajanjem v prometu ter možnost vplivanja na prometno varnost. V Republiki Sloveniji morajo osnovne šole izdelati Načrt varne šolske poti, ki informira uporabnike o varnih poteh za prihod in odhod iz šole. Diplomska naloga se ukvarja s problematiko obstoječega načrta varnih šolskih poti OŠ Pohorskega odreda v Slovenski Bistrici. Na podlagi določenih kriterijev je predstavljena klasifikacija primernosti ulic in predstavljen predlog izboljšav obstoječega stanja v obliki prenovljenega načrta varnih šolskih poti. Prenova vključuje digitalizacijo zemljevidov, ki omogočajo interaktivno predstavitev nevarnih ulic in lokacij. S tem lahko šola uporabnikom posreduje pomembne informacije o nevarnostih v cestnem prometu, kar zmanjšuje tveganje za otroke med potjo v šolo in nazaj.
Keywords: načrt varnih šolskih poti, varnost otrok v cestnem prometu, osnovna šola, učenci, Slovenska Bistrica
Published in DKUM: 20.02.2024; Views: 62; Downloads: 22
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8.
Energetska učinkovitost avtomatiziranih regalnih skladiščnih sistemov pri uporabi tehnologije regeneracije energije : primer avtomatskega skladiščenja v jeklarski industriji
Marko Motaln, Boris Jerman, Anja Žagar, Jurij Hladnik, Tone Lerher, 2023, professional article

Abstract: Z namenom doseganja visoke zalogovne velikosti in zahtevane pretočne zmogljivosti se tudi v jeklarski industriji vse pogosteje uporabljajo avtomatizirani regalni skladiščni sistemi za uskladiščenje težkih polizdelkov oz. jeklenih palic in profilov, nameščenih v namenskih kasetah. Izrazito visoka teža jeklenih palic in profilov ter zahtevane pretočne zmogljivosti z dodatnimi zahtevami tehnično robustnega in visoko učinkovitega skladišča, prinaša s sabo tudi visoko potrošnjo električne energije za delovanja skladišča. V članku je na primeru avtomatiziranega regalnega skladišča za jeklene palice in profile predstavljena možnost zmanjšanja porabe električne energije z uporabo koncepta regeneracije pri zaviranju regalnega dvigala in spuščanju dvižne mize regalnega dvigala.
Keywords: tehniška logistika, avtomatizirana regalna skladišča, energijski model skladišča, regeneracija energije, analiza učinkovitosti
Published in DKUM: 19.02.2024; Views: 58; Downloads: 10
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9.
Umirjanje prometa na začetku naselij : magistrsko delo
Mateja Dovar, 2024, master's thesis

Abstract: V magistrskem delu je obravnavana problematika prehodnega območja vstopa v naselje, kjer cesta zunaj naselja prehaja v pozidano okolje ob cesti ali v območje, ki ga določajo meje naselja. Osnovni namen ureditve vstopa v naselje je voznika opozoriti o spremembi okolja ter ga spodbuditi k ustrezni prilagoditvi hitrosti, saj se z vstopom v naselje običajno spremenijo prometne razmere (npr. večja količina nemotoriziranih udeležencev v prometu). V magistrskem delu je podan pregled trenutne zakonodaje v Sloveniji in tujini, ki se nanaša na umirjanje prometa. V nadaljevanju je v sklopu magistrskega dela proučena in analizirana obstoječa projektna dokumentacija ter že izvedeni ukrepi na območjih vstopov v naselja. Na podlagi ugotovitev so predlagane tipske rešitve ureditve vstopov v naselja, ki se lahko uporabijo v danih situacijah. Predlagane rešitve so zasnovane z namenom zmanjšanja tveganja za nastanek prometnih nesreč in povečanja varnosti vseh udeležencev v prometu. Upoštevane so smernice, ki jih določa zakonodaja glede prometne varnosti, z namenom, da bi ureditve čim bolj učinkovito prispevale k varnemu in nemotenemu prehodu vozil v naselje.
Keywords: umirjanje prometa, ukrepi in naprave za umirjanje prometa, prometna varnost, tehnične smernice, vstopi v naselja
Published in DKUM: 15.02.2024; Views: 67; Downloads: 9
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10.
Problem embaliranja nabavnih B materialov za linijo MCM3 v podjetju BSH hišni aparati d. o. o. Nazarje : diplomsko delo visokošolskega strokovnega študijskega programa
Anja Tevž, 2023, undergraduate thesis

Abstract: Embalaža ima dandanes izjemno pomembno vlogo tako v poslovnem kot tudi v zasebnem življenju. Ne samo, da izdelkom nudi zaščito, temveč tudi močno povečuje njihovo vrednost. Podjetja se v preteklosti niso zavedala, kako pomembno vlogo igrata logistika in embalaža pri ustvarjanju dobička, tu pa je v zadnjih letih moč opaziti velik napredek ter velike spremembe. Sama embalaža se je zelo razvila napram prejšnjemu stoletju, postala je bolj trpežna, napredna in navsezadnje tudi raznovrstna, saj je na tržišču prisotnih vse več različnih vrst embalažnih materialov. V diplomski nalogi se bomo dotaknili splošnih teoretičnih osnov nabave, nabavne logistike in embalaže. Raziskali bomo trenutno embaliranje nabavnih B materialov za linijo MCM3 v podjetju BSH Hišni aparati d.o.o. Nazarje, ki ni usklajeno z zahtevami proizvodne linije, kar podjetjem povzroča težave. Vzporedno bomo predlagali nov, izboljšan način embaliranja, ki bo usklajen z zahtevami prej omenjene proizvodne linije in ju tudi medsebojno primerjali.
Keywords: nabava, nabavna logistika, embalaža, embaliranje, embalirani predpisi
Published in DKUM: 13.02.2024; Views: 39; Downloads: 1
.pdf Full text (3,56 MB)

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