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    71951 research outputs found

    Gen Z and dark tourism attractions based on serila killers

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    Temni turizem je podvrst turizma, ki v zadnjih časih pridobiva vse več zanimanja s strani javnosti, še vseeno pa obstajajo področja temnega turizma, ki so deloma neznana in neraziskana. Takšen je na primer temni turizem na osnovi dejanj serijskih morilcev. Turisti, ki se ueležujejo takšnih atrakcij, si želijo unikatnosti, drugačnosti in izstopa iz vsakdanjosti. Enake želje na potovanjih pa imajo tudi pripadniki generacije Z, ki so rojeni med leti 1995 in 2015. V nalogi smo s pomočjo analize literature postavili definicijo temnega turizma na osnovi dejanj serijskih morilcev. Prav tako smo s pomočjo analize anketnega vprašalnika, v katerem je sodelovalo 416 pripadnikov slovenske generacije Z, ugotovili, da je produkt temnega turizma na osnovi serijskega morilca atraktiven za slovenske pripadnike generacije Z. Spoznali smo njihove želje glede oblikovanja takšnega produkta in ugotovili, da bi pripadniki generacije Z lahko predstavljali ciljno skupino za takšen turistični produkt.Dark tourism is a subtype of tourism that has been gaining more and more interest from the public in recent times, but there are still areas of dark tourism that are partly unknown and unexplored. Such is, for example, dark tourism based on serial killers. Tourists who visit such attractions want uniqueness and detachment from everyday life. Members of generation Z, who were born between 1995 and 2015, have the same wishes when travelling. In the assignment, with the help of literature analysis, we set the definition of dark tourism based on the actions of serial killers. Also, with the help of the analysis of a survey questionnaire in which 416 members of the Slovenian generation Z participated, we found that the product of dark tourism based on serial killers is attractive to the Slovenian members of the generation Z. We found out their wishes regarding the creation of such a product and found that generation Z could represent the target group for such touristic products

    Blood flow modelling through an artery graft with a multiphase model of uniform fluid

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    V tem delu je predstavljen pristop modeliranja toka krvi kot enofazni in večfazni sistem, skozi žilno opornico na poenostavljeni geometriji. Predstavljene so bile dosedanje ugotovitve na področju računske dinamike tekočin krvi, vodilne enačbe v posameznem pristopu ter trije pristopi večfaznega sistema. Za večfazni pristop je bil izbran pristop Euler-Euler. V enofaznem sistemu je kri obravnavana kot Newtonska ter nenewtonska tekočina, medtem ko je v večfaznem sistemu obravnavana kot štiri fazna zmes. Izvedene so bile tri simulacije ustaljenih razmer ter ena časovno odvisna simulacija na enofaznem nenewtonskem modelu. Za izvedbo simulacij je bil uporabljen programski paket ANSYS Fluent 2023 r1. Rezultati so bili analizirani v programu CFD Post, kjer smo opazovali vpliv žilne opornice na strižno napetost. Opazili smo področja manjše strižne napetosti med opornicami ter razlike med notranjo in zunanjo stranjo žile. Dobljene rezultate smo primerjali z referenčnim člankom. Enofazni modeli so bili skladni s člankom, pri čemer je bil nenewtonski model malenkost boljši, medtem ko so rezultati večfaznega modela bistveno odstopali. Iz tega smo sklepali, da je za potrebe analiziranje žilne opornice pristop enofazne tekočine primernejši, medtem ko je prednost večfaznega modela v možnosti vpogleda porazdelitev posameznih faz oziroma krvnih delcev. Na koncu smo tudi našteli omejitve večfaznega pristopa in raziskali možnosti za izboljšavo.This work describes the process of modelling blood flow through an arterial graft using a single-phase and a multiphase approach. We researched scientific articles and books on computational fluid dynamics in blood flow, described the leading equations and three approaches to modelling multiphase flow. We then used the Euler-Euler multiphase approach. For the single-phase approach, we used the Newtonian fluid model and the Nonnewtonian fluid model, while for the multiphase approach, we modelled the blood as a four-phase mixture. We performed three steady-state and one transient simulation using ANSYS Fluent 2023. The results were then analysed in CFD Post, where we focused on the wall shear stress. We found that the wall shear stress between the stent struts was lower and that there was a difference between the inner and outer walls of the artery, with the outer wall having slightly higher values of wall shear stress. We then compared our results with the scientific reference paper. We found that our single-phase approach gave better results, with the Nonnewtonian model being slightly better, while our multiphase approach differed significantly from the article. We concluded that the single-phase approach was more suitable, while the multiphase approach gave us a deeper insight into the phase or blood cell distribution. We then discussed the limitations of our multiphase approach and made suggestions for improvement

    Welding of steel surfaces using robotic welding

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    Varjenje je spajanje dveh ali več delov v eno, nerazdružljivo celoto, ki jo imenujemo zvarjenec. Z varjenjem je mogoče spojiti kovine, polimere, stekla, keramike, karbide, kompozite itd.. Lahko pa se med seboj varijo tudi kovine in nekovine. Pri varjenju kovinskih materialov poznamo v osnovi dva tipa varjenja. Prvi tip varjenja je varjenje pod pritiskom, drugi način pa je varjenje s taljenjem. Ker svetovni trg vedno bolj teži k avtomatizaciji proizvodnih procesov, so se roboti do danes uveljavili v marsikaterem tehnološkem in proizvodnem procesu, saj so se izkazali za zelo učinkovite. Glavni razlog za avtomatizacijo so kakovost, nižji stroški in razbremenitev delavcev. Kljub temu, da se robotsko varjenje še vedno razvija, pa je vedno bolj uveljavljeno v več podjetjih. Robotsko varjenje izvajajo izključno v naprej programirani roboti, ki se odlikujejo predvsem po svoji zanesljivosti. Če se na primer postavimo v vlogo varilca, je znano, da smo s tem izpostavljeni različnim poškodbam in tudi boleznim dihal, zato je verjetnost bolniškega dopusta toliko večja. Z uvajanjem robotov v proces varjenja tako bistveno prispevamo k večji zanesljivosti in tudi kakovosti delovanja, saj so sposobni nemoteno delovati tudi po 24 ur in več. Podjetja s tem dosegajo večjo kakovost, produktivnost in tudi manjše stroške proizvodnje. Zato se robotsko varjenje splača predvsem ob večjih naročilih, saj je ponovljivost varjenja brez napak izjemno visoka, res pa je, da je potrebno robote v tem primeru ustrezno sprogramirati. V nalogi bodo obravnavani enovarkovni navari na ravnih ploščah, ki se v praksi veliko uporabljajo za popravilo poškodovanih površin energetskih komponent in zvišanje mehanskih lastnosti osnovnega materiala. Izvedena bo kontrola kvalitete navarkov (var + toplotno vplivano področje) s pomočjo razreza navarov in izvedbo metalografske preiskave prereza navarka.Welding is the joining of two or more parts into one, inseparable whole, which is called a weldment. Metals, polymers, glasses, ceramics, carbides, composites, etc. can be joined by welding. Metals and non-metals can also be welded together. When welding metal materials, there are basically two types of welding. The first type of welding is pressure welding and the second method is fusion welding. Since the world market is increasingly moving towards the automation of production processes, robots have established themselves in many technological and production processes to date, as they have proven to be very efficient. The main reason for automation is quality, lower costs and relief from workers. Despite the fact that robotic welding is still developing, it is increasingly established in more companies. Robotic welding is performed exclusively in the forward direction programmed robots that stand out above all for their reliability. If, for example, we put ourselves in the role of a welder, we are known to be exposed to various injuries and respiratory diseases, which is why the probability of sick leave is that much greater. By introducing robots into the welding process, we significantly contribute to greater reliability and also the quality of operation, as they are capable of working uninterrupted even for 24 hours or more. Companies thereby achieve higher quality, productivity and lower production costs. Therefore, robotic welding is especially worthwhile for larger orders, as the reproducibility of welding without errors is extremely high, but it is true that the robots must be properly programmed in this case. The task will deal with single-wave welds on flat plates, which are widely used in practice to repair damaged surfaces of energy components and increase the mechanical properties of the base material. Quality control of welds (var + heat-affected area) will be carried out with the help of sectioning of the welds and metallographic examination of the cross-section of the wel

    Technological guidelines for improving the assembly line of a coffee grinder

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    V diplomski nalogi je predstavljen postopek snovanja tehnoloških smernic za avtomatizacijo montažne linije za izdelavo kavnih mlinov. Z avtomatizacijo linije pripomoremo k zmanjšanju napak ter zagotovimo večjo produktivnost in ponovljivost. S pomočjo metod kot sta LoA in ABC analiza pridobimo sliko trenutnega stanja linije in vpogled v zmožnost avtomatizacije linije. Iz predhodnih tehnoloških smernic pridobimo zahteve za posamezni sestavni del in tako podamo tehnološke smernice zunanjim izvajalcem, ki glede na naše zahteve in rezultate posodobijo linijo. V diplomski nalogi sem podal oceno možnosti avtomatizacije proizvodnje izdelka in tehnološke smernice za popolno ali delno avtomatizacijo montažne linije. S posodobitvijo linije bomo povečali produktivnost, natančnost in zmanjšali število delovnih mest.The diploma thesis presents the process of designing technological guidelines for the automation of the assembly line for the manufacture of coffee grinders. By automating the line, we help reduce errors and ensure greater productivity and repeatability. Using methods such as LoA and ABC analysis, we gain a picture of the current state of the line and an insight into the ability to automate the line. From the previous technological guidelines, we obtain the requirements for an individual component and thus provide technological guidelines to external contractors, who update the line according to our requirements and results. In my diploma thesis I gave an assessment of the possibility of automation of product production and technological guidelines for full or partial automation of the assembly line. By updating the line, we will increase productivity, accuracy and reduce the number of jobs

    Development of a machine for rewinding the tape

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    Obravnavana problematika diplomskega dela je ekscentrično navitje traku polizdelka na valjček. Cilj dela je razvoj nove vmesne enote, oziroma stroja, ki bo trak centrirano navil na nov valjček. Razvoj je opisan po korakih konstruiranja nove variante oziroma projektiranja. S pomočjo metode 3D modeliranja v programskem okolju Siemens NX, je rezultat dela konfekcijski stroj za ponovno previjanje traku.The problem of the diploma thesis is the eccentric winding of the semi-finished product, in the shape of a belt, on the roller. The aim of the work is to develop a new intermediate unit, a machine that will wind the belt on a new roller and correct the misalignment. The development is described in the steps of constructing a new variant. Using the 3D modeling method in the Siemens NX software environment, the result is a ready-made machine for rewinding the tape

    System for analysing and measuring production andefficiencies of cogeneration machine (CHP)

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    V današnjem času je vedno več pobud za rabo obnovljivih virov in virov z velikim izkoristkom. Pri tem imajo veliko vlogo naprave za proizvodnjo primarne električne energije, kjer prav tako izkoristimo sekundarno toplotno energijo naprave in jo uporabimo za pripravo tople vode. V diplomskem delu je opisana izdelava avtomatiziranega sistema meritev za naprave kogeneracije SPTE. Najprej so opisane okoliščine meritvenega območja in podjetje, ki izdeluje naprave kogeneracije. V nadaljevanju so podani vse naloge in postopki izvajanja meritev ustreznosti končnih naprav SPTE. Prvi sklop vključuje opis izbrane merilne opreme, projektiranje električnega vezja in povzetek omogočenih komunikacijskih protokolov. Drugi sklop naloge predstavlja metode izdelave programa, kjer so vključeni diagrami in opisi posameznih plasti različnih funkcij. Sledita analiza in obdelava podatkov v pripravi za poročila meritev. Podana so navodila za uporabo merilnega sistema in sklep naloge, kjer so opisane zadnje misli in možne izboljšave sistema merjenja kogeneracije.In today’s time there is an increasing initiative on renewable sources and sources with high efficiency. Cogeneration units with primary production of electrical energy and use of secondary heat energy for heating purposes play a big part in this category. In this thesis we describe the automation process of a measuring system for cogeneration units CHP. First, we describe the circumstances of the measuring area and the company which produces cogeneration units. Hereinafter there are presented all the tasks and implementation procedures of preforming measurements of the adequacy concerning terminal CHP equipment. First section includes descriptions of selected measuring equipment and devices, electrical circuit design and enabled communication protocols. The second section presents the methods of creating a program which includes diagrams and descriptions of individual function layers. This is followed by analysis and data processing in preparation for measurement reports. Instructions for the use of the measuring system are given, as well as the conclusion of the presented task where we present final thoughts and the possible improvements for the cogeneration measurement system

    Organization of distance work in a pharmaceutical company

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    Delo na daljavo pomeni, da posameznik opravlja delo kjerkoli, ločeno od sedeža podjetja. Pomembno je, da zna ločiti službeno življenje od privatnega in ima organiziran delovni čas, postavljene prioritete ter da veliko komunicira z ostalimi sodelavci. Cilj naloge je natančno analizirati samo organizacijo dela na daljavo v našem podjetju, podati morebitne predloge, ki jih bomo zasledili v predlagani literaturi, ter podati smernice za dobro organizacijo dela na daljavo. Pri rezultatih smo ugotovili, da je bilo delo na daljavo za zaposlene dobro organizirano, prav tako je komunikacija med zaposlenimi in nadrejenimi potekala dobro. Zaposleni so kot prednosti dela na daljavo navedli fleksibilnost delovnega časa, vožnjo, čas, mir. Hkrati pa so še izpostavili slabosti dela na daljavo, in sicer, da ni določenega urnika za delo, ni direktnega stika s sodelavci ter druženja.Distance work means that an individual performs work in any space. It is important that he can separate his work life from private, and has organized working hours, set his priorities and communicates with other colleagues The aim of the task is to accurately present the organisation of distance work in our company, to make any suggestions that we will find in the proposed literature, and to provide guidelines for the good organisation of distance work. The results found that the distance work was well organised and communication between employees and superiors was well-organised. Respondents cited the benefits of distance work the flexibility of working time, driving, time, peace. At the same time, they also highlighted the weaknesses of distance work, namely that there is no set schedule for work, no direct contact with colleagues, discussions over coffee

    Bonuses as non-monetary rewards from selected global employers

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    Nedenarne nagrade so tisto »več«, kar lahko delodajalec ponudi zaposlenim, in so pomemben dejavnik privabljanja in zadrževanja zaposlenih ter predstavljajo konkurenčno prednost delodajalca na trgu dela, tudi ko ta deluje globalno. V tem magistrskem delu so predstavljene bonitete kot nedenarne nagrade, in sicer na primeru delodajalcev prejemnikov nagrade »Great Place to Work«. Podatki so pridobljeni s spletne strani Glassdoor (https://www.greatplacetowork.com/, 2023). Teoretični del naloge je podlaga za raziskovalni del. Z dobrim upravljanjem blagovne znamke delodajalca podjetje dviguje zanimanje med iskalci zaposlitve, na drugi strani pa za zaposlene gradi organizacijsko kulturo, kjer jih, kot enega izmed deležnikov, postavi v središče. Nagrada za delo je za zaposlenega povratna informacija, kako njegovo delo in trud vidi delodajalec. To lahko delodajalec pokaže z neko boniteto, ki ima lahko za zaposlenega večjo vrednost od same denarne nagrade. Ko združimo najboljše delodajalce s podatki o bonitetah, dobimo odgovor, katere so tiste, ki so jih deležni zaposleni pri teh delodajalcih, glede na geografsko območje, v katerem podjetja delujejo. To je glavna tema tega drugega raziskovalnega dela magistrske naloge.Non-monetary rewards are the most that an employer can offer to employees. Non-monetary rewards are an important factor in attracting and retaining employees and shift the employer\u27s competitive advantage on the labor market, even when you operate globally. In this master\u27s thesis, credit ratings are presented as non-monetary rewards, using the example of employers receiving the Great Place to Work award. Information about the credit ratings of these employers is obtained from the website Glassdoor. The theoretical part of the assignment is the basis for the research part. With good employer brand management, the company raises interest among job seekers, and on the other hand, builds an organizational culture for employees where they, as one of the stakeholders, are at the center. For the employee, the reward for work is feedback on how his work and effort are seen by the employer. This can also be shown in a bonus or benefit, which can have a greater value for the employee than the monetary reward itself. When we combine the best employers together with data on the benefitswith, we get the answer of which ones are received by the employees according to the geographical area in which the companies operate, and this is the topic of the second, research work, master\u27s thesis

    Development of sustainable tourism in protected areas whit a visitors management model: the example of special botanical reserve Dubravica

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    Če želimo zavarovati določena območja narave zaradi izjemnih naravnih lepot in hkrati omogočiti dolgoročno upravljanje turizma na teh območjih, je treba oblikovati celovit strateški načrt, zakonsko zaščititi zavarovano območje, postopno izvajati številne ukrepe, postopke in aktivnosti naravovarstvenega in obiskovalnega upravljanja ter ovrednotiti vse načrtovane procese. Dandanes se počasi zavedamo, da turizem in naravovarstvo ne smeta biti na nasprotnih straneh, ampak je treba razvijati globalno zavest človeštva o ohranjanju narave kot primarnem cilju ohranjanja narave. Za zmanjšanje negativnih vplivov na gospodarstvo, okolje in družbo ter ohranjanje vrednot zavarovanih območij, ki imajo tudi turistični potencial, je treba razvijati trajnostni in družbeno odgovorni turizem z modelom upravljanja obiska. Ta model je predstavljen v magistrskem delu na primeru Posebnega botaničnega rezervata Dubravica. Model smo oblikovali s sekundarnimi podatki in kvalitativno raziskavo, to je mnenjem strokovnjakov, ter ga potrdili s kvantitativno raziskavo, natančneje z mnenjem lokalnega prebivalstva, torej uporabnikov. Poleg potrditve modela smo s spletno anketo ugotovili, da se lokalna skupnost zaveda pomena ohranjanja narave in zavarovanih območij, kar je vsekakor pozitivna novica in daje upanje v boljšo prihodnost.If we want to protect certain areas of nature due to their exceptional natural beauty and at the same time enable long-term management of tourism in these areas, it is necessary to draw up a comprehensive strategic plan, legally protect the protected area, gradually implement a number of measures, procedures and activities of nature conservation and visitor management, and evaluate all planned processes. Nowadays, we are slowly realizing that tourism and nature conservation should not be at opposite sides, but that the global awareness of humanity about nature conservation as the primary goal of nature conservation must be developed. In order to reduce the negative impacts on the economy, the environment and society and preserve the values of protected areas, which also have tourism potential, it is necessary to develop sustainable and socially responsible tourism with a visit management model. This model is presented in the Master\u27s thesis on the example of the Dubravica Special Botanical Reserve. We designed the model with secondary data and qualitative research, i.e. the opinion of experts, and confirmed it with a quantitative survey, more precisely the opinion of the local population, i.e. of users. In addition to validating the model, we found with an online survey that the local community is aware of the importance of preserving nature and protected areas, which is definitely positive news and gives hope for a better future

    Graphs with unique γ-sets

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    V magistrskem delu podrobneje obravnavamo grafe z enolično γ-množico oziroma γ-enolične grafe. To so grafi, ki imajo natanko eno najmanjšo dominantno množico. Sprva zapišemo nekaj osnovnih definicij in trditev o grafih, nato posebej obravnavamo dve družini grafov, in sicer drevesa ter bločne grafe. Podrobneje opišemo dominantno množico in dominantno število grafa. Dokažemo nekaj potrebnih in nekaj zadostnih pogojev za grafe z natanko eno γ-množico. Nato se osredotočimo na drevesa. Predstavimo dve karakterizaciji γ-enoličnih dreves ter obe karakterizaciji posplošimo na γ-enolične bločne grafe. Nazadnje opišemo konstrukcijo γ-enoličnih grafov oziroma zapišemo štiri operacije, ki jih lahko uporabimo nad γ-enoličnimi grafi, da bo na novo dobljen graf ponovno γ-enoličen.The thesis aims to give an in-depth insight into graphs with a unique γ-sets (known as γ-unique graphs), that is, graphs with exactly one minimum dominating set. Initially, we present fundamental theoretical concepts and principles of graphs, and examine two distinct classes of graphs, namely trees and block graphs. Subsequently, we provide a detailed description of the dominating set and the domination number of a graph. Then we give some necessary and some sufficient conditions of γ-unique graphs. γ-unique trees are then studied in more details. We present two characterizations of γ-unique trees and extend these characterizations to γ-unique block graphs. In the concluding segment of the thesis, the construction of γ-unique graphs will be explained by using four graph operations that can be applied on γ-unique graph, such that the resulting graph is again γ-unique

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