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31.
New trends in rock mass characterisation for designing geotechnical structures
Drago Ocepek, 2005, izvirni znanstveni članek

Opis: The investigation on designing supporting measures for geotechnical structures consists of the proper selection of the input data for the stress – strain analysis of the excavation process and the selection of retaining measures. In the preliminary phase of investigation the area must be geologically mapped in detail, and discontinuities precisely measured, boreholes and their “in situ” tests listed and samples for laboratory examinations taken. The new method allows rock mass classification for different rock quality, from soft rocks to mixed rock masses, as well as determination of the geological strength index GSI. The limits for using the suggested method are persistent discontinuities in rock mass which lead to translation or rotation failure mechanisms, either in a single plane or as a wedge. In all cases where discontinuities play a significant role, the rock mass structure must be considered and kinematical analyses performed. In other circumstances, a rock may be uniform and reasonably isotropic due to the geometry of discontinuities and their mutual intersections. The value range of GSI is first determined in the beginning of investigation and later in the excavation phase by considering the disturbance factor D, which expresses disturbances caused by excavation methods and rock mass relaxation. The strength and deformability parameters of rocks of different quality are determined by the generalized Hoek-Brown failure criterion and applied to shallow and deep tunnels or slopes. Before the start of excavations work and after establishing the retaining measures, the analysis results are checked by monitoring. New methods include the determination of post peak strength parameters of rock mass after relaxation, and routine measurements. The newest measurement system however allows direct readings of displacements of the rock mass in both the elastic and post-peak states. With back analyses we determine the softening behavior of the rock mass and a possible need for increasing retaining measures. Such a design method enables the optimization of retaining measures and the reduction of investment costs.
Ključne besede: geological strength index – GSI, simulation of a triaxial large scale »in situ« test, numerical modeling, retaining measures, rock reinforcement, monitoring, back analyses, strain softening, rock mass relaxation
Objavljeno v DKUM: 16.05.2018; Ogledov: 1162; Prenosov: 63
.pdf Celotno besedilo (1,05 MB)
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32.
Spreadsheets in function of optimisation of logistics network
Mimo Drašković, Drago Pupavac, 2016, samostojni znanstveni sestavek ali poglavje v monografski publikaciji

Opis: This scientific paper discusses how estimated spreadsheets functions in logistics networks optimisation. The suggested working hypothesis for efficacy of estimated spreadsheets in designing logistics networks is proved and a practical example. In this way the given model can be applied to all logistics networks of similar problem capacity. Logistics network model confronting estimated spreadsheets present a real world at a level needed for understanding the problem of optimisation of logistic networks. Applied scientific research for recognition of the set hypothesis is based on analysis and synthesis method, mathematical method and information modelling method.
Ključne besede: spreadsheets, estimation, logistics network design, optimization
Objavljeno v DKUM: 09.05.2018; Ogledov: 912; Prenosov: 98
.pdf Celotno besedilo (268,67 KB)
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33.
Management and logistics : selected topics
Borut Jereb, Mimo Drašković, Irena Gorenak, Sanja Bauk, Maja Fošner, Bojan Rosi, Drago Pupavac, Darja Topolšek, Oleksandr Dorokhov, Uroš Kramar, Željko Ivanović, Marjan Sternad, Matjaž Knez, Sonja Mlaker Kač, Ludmila Malyaretz, Matevž Obrecht, Tina Cvahte Ojsteršek, 2016, znanstvena monografija

Opis: The scientific monograph titled Logistics and Management – selected topics is the result of a bilateral project, lasting from 2013 to 2015 and titled “Preparation of a joint scientific monograph in the field of logistics and management issued at the Faculty of Logistics in Celje and the Maritime Faculty of Kotor”. The project was managed by Professor Maja Fošner, PhD, from the Faculty of Logistics at the University of Maribor, and Professor Veselin Draskovic, PdD, from the Maritime Faculty of Kotor, Montenegro. The main goal of the monograph is to give a comprehensive account of selected areas from the field of logistics and challenges in the development of logistics, such as risk management and supply chains, transport cost, competences in logistics, urban logistics, green logistics, seaport cooperation, logistics network optimisation, logistics in tourism, logistics in performance management, systemic logistics providers and solutions to problems of transportation task. Wishing to offer a comprehensive presentation of various areas in the field of logistics, the authors of the monograph contributions, who participated on the project (Maja Fošner, Bojan Rosi, Borut Jereb, Marjan Sternad, Veselin Draskovic (ed.), Mimo Draskovic, Sanja Bauk, Senka Sekulac-Ivosevic), invited to cooperation also other researchers from the Faculty of Logistics and the Maritime Faculty of Kotor (Irena Gorenak, Matjaž Knez, Matevž Obrecht, Sonja Mlaker Kač, Tina Cvahte, Darja Topolsek, Drago Pupavac, Zeljko Ivanovic, Oleksandr Dorokhov, and Ludmila Malyaretz) who enriched the present monograph with their contributions. The monograph is aimed at professional public and anyone interested in the field of logistics. It should also serve as a useful aid in the study of logistics.
Ključne besede: logistics, management, risk management, supply chains, transport cost, urban logistics, green logistics, seaport cooperation, logistics network, optimisation, logistics in tourism, logistics in performance management, systemic logistics providers
Objavljeno v DKUM: 08.05.2018; Ogledov: 1480; Prenosov: 225
.pdf Celotno besedilo (21,21 MB)
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34.
Primerjava energetske učinkovitosti LED in klasičnih svetil
Drago Bohar, 2017, diplomsko delo

Opis: V diplomski nalogi je predstavljena energetska učinkovitost LED svetil v primerjavi s klasičnimi. Tehnologija dandanes napreduje na vsakem področju in tako je tako tudi pri razsvetljavi. Najprej je predstavljena LED tehnologija svetil, nato pa praktičen primer obstoječe razsvetljave šolske telovadnice v osnovni šoli Gornji Petrovci, in pa predlagana izboljšava z zamenjavo razsvetljave. Narejen je tudi primer razsvetljave za enostanovanjsko hišo ter napotki za pravilno izbiro svetil.
Ključne besede: energetska učinkovitost, LED svetila, električna energija, osvetlitev
Objavljeno v DKUM: 24.11.2017; Ogledov: 1588; Prenosov: 151
.pdf Celotno besedilo (3,05 MB)

35.
The level of youth activism : case study of the city of Belgrade
Tatjana Borojević, Drago Vuk, Nataša Petrović, Dragoslav Slović, 2015, izvirni znanstveni članek

Opis: During the period from 2007 to 2014, and in addition to huge institutional changes, large steps were taken in the field of youth policy in the Republic of Serbia in order to create national resources which would have influence on the improvement of the youth status and life. On the other hand, the practice shows that the existence of the national framework for youth support, as a local service network intended for youths, is not a crucial prerequisite to change the current situation when it comes to improving the quality of life of young people, but that the existence of the critical level of youth activism is a key driving force that leads to changes. This paper presents an overview of the level of youth activism in the city of Belgrade. The results show that young people accept a proactive attitude to life when it comes to their personal or family problems and issues whilst the engagement in the social field and especially a political one are not seen as a preferable type of behaviour.
Ključne besede: youth, youth activism, participation, level of youth activism
Objavljeno v DKUM: 20.11.2017; Ogledov: 1069; Prenosov: 165
.pdf Celotno besedilo (951,02 KB)
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36.
Diskriminantna analiza
Dragana Nikolić, 2017, magistrsko delo

Opis: V magistrskem delu so predstavljene osnove diskriminantne analize. Magistrsko delo je razdeljeno v štiri dele. V prvem delu so predstavljeni osnovni pojmi statistike, potrebni za obrazložitev diskriminantne analize. V drugem delu sta obrazložena postopka analize variance (ANOVA) in multivariatne analize variance (MANOVA). Tretji del je namenjen obrazložitvi diskriminantne analize. Podrobno sta obrazloženi diskriminantna analiza za dve skupini kot tudi diskriminantna analiza za več skupin. V zadnjem delu smo na podatkih, pridobljenih iz aplikacije mOIDom, opravili diskriminantno analizo.
Ključne besede: diskriminantna analiza, diskriminantna funkcija, normalna porazdelitev, analiza variance, multivariatna analiza variance, statistični testi
Objavljeno v DKUM: 13.11.2017; Ogledov: 1977; Prenosov: 249
.pdf Celotno besedilo (996,86 KB)

37.
Ecological footprint as indicator of students environmental awareness level at Faculties of Organizational Sciences, University of Belgrade and University of Maribor
Nataša Petrović, Sonja Išljamović, Veljko Jeremić, Drago Vuk, Marjan Senegačnik, 2011, izvirni znanstveni članek

Opis: The Ecological Footprint is a complex sustainability indicator that answers a simple question: How much of the Earth’s resources is demanded to support humankind lifestyle and activities? Ecological Footprint translates consumption and waste flow data into a measurement of the biologically productive area required to sustain that flow. We used Ecological Footprint as input feature that provides an effective heuristic and pedagogic tool for capturing current human resource use. The key aspect of this paper will be focused on the measuring of environmental awareness level among the students of the Faculty of Organizational Science, University of Belgrade and University of Maribor. For the determining student’s environmental awareness level and their Ecological Footprint, we used a closed form questionnaire with 15 questions. Statistical analysis has been performed in SPSS software package.
Ključne besede: ecological footprint, environmental education, sustainability indicator, natural resources
Objavljeno v DKUM: 03.11.2017; Ogledov: 1295; Prenosov: 108
.pdf Celotno besedilo (184,14 KB)
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38.
A new somatic cell count index to more accurately predict milk yield losses
Janez Jeretina, Dejan Škorjanc, Drago Babnik, 2017, izvirni znanstveni članek

Opis: Intramammary infection and clinical mastitis in dairy cows leads to considerable economic losses for farmers. The somatic cell concentration in cow's milk has been shown to be an excellent indicator for the prevalence of subclinical mastitis. In this study, a new somatic cell count index (SCCI) was proposed for the accurate prediction of milk yield losses caused by elevated somatic cell count (SCC). In all, 97238 lactations (55207 Holstein cows) from 2328 herds were recorded between 2010 and 2014 under different scenarios (high and low levels of SCC, four lactation stages, different milk yield intensities, and parities (1, 2, and _>3). The standard shape of the curve for SCC was determined using completed standard lactations of healthy cows. The SCCI was defined as the sum of the differences between the measured interpolated values of the natural logarithm of SCC (ln(SCC)) and the values for the standard shape of the curve for SCC for a particular period, divided by the total area enclosed by the standard curve and upper limit of ln(SCC)=10 for SCC. The phenotypic potential of milk yield (305-day milk yield - MY305) was calculated using regression coefficients estimated from the linear regression model for parity and breeding values of cows for milk yield. The extent of daily milk yield loss caused by increased SCC was found to be mainly related to the early stage of lactation. Depending on the possible scenarios, the estimated milk yield loss from MY305 for primiparous cows was at least 0.8 to 0.9 kg day -1 and for multiparous cows it ranged from 1.3 to 4.3 kg day-1. Thus, the SCCI was a suitable indicator for estimating daily milk yield losses associated with increased SCC and might provide farmers reliable information to take appropriate measures for ensuring good health of cows and reducing milk yield losses at the herd level.
Ključne besede: dairy cows, milk production, lactation intervals, milk yield losses, somatic cell count index
Objavljeno v DKUM: 24.10.2017; Ogledov: 1453; Prenosov: 473
.pdf Celotno besedilo (317,33 KB)
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39.
Forenzično jezikoslovje: algoritmizirano jezikovnostilno ugotavljanje profila tvorcev spletnih komentarjev
Marko Drobnjak, 2017, magistrsko delo

Opis: Splet predstavlja spremembo v komunikaciji, stilu sporočanja in tvorjenju besedil. Zaradi formalizirane anonimnosti, ki jo omogoča spletni prostor, se čedalje težje odkriva avtorje diskurzov in besedil na spletu, saj hibridna oblika posredovanja informacij z novo metabesedilnostjo zahteva najaktualnejše pristope pri ugotavljanju avtorstva tovrstnih besedil. V magistrskem delu smo zato v teoretsko jezikoslovno izhodišče uvedli Foucaultovo (arheologijo) vednost(i) s področja jezika in diskurza ter v nadaljevanju upoštevali Unukov pogled na stil, ostalo splošno jezikoslovno teorijo pa smo dopolnili s ključnimi spoznanji s področja forenzičnega jezikoslovja in forenzične stilistike. V aplikativni razsežnosti magistrskega dela smo skozi statistične, korpusne in ostale forenzične analize vseskozi upoštevali načela objektivnosti, relevantnosti ter samokritike po Keržanu. Ustreznost teoretskega koncepta pri obravnavani problematiki magistrskega dela se je potrdila skozi raziskovalni del, saj smo prišli do rezultatov, ki kažejo na potencialno vrednost uporabljene metodologije pri ugotavljanju stilnih razlikovanj med besedilnimi vrstami, komentarji na spletnih straneh in na splošno med vsemi besedili. Predstavljene stilne vrednosti omogočajo tudi prepoznavanje avtorstva besedil(a) in ugotavljanje stilnega profila tvorcev spletnih komentarjev.
Ključne besede: analiza diskurza, forenzično jezikoslovje, besedilna stilistika, kvantitativna besedilna analiza, profiliranje avtorja
Objavljeno v DKUM: 06.10.2017; Ogledov: 2015; Prenosov: 277
.pdf Celotno besedilo (1,69 MB)

40.
Slovenski jezik v sočasnem sporazumevalnem prostoru
Drago Unuk, 2016, izvirni znanstveni članek

Opis: Družbene spremembe, sporazumevalna pomnožitev in tehnološke spremembe so ustvarile stopnjevano potrebo po večji dinamičnosti in variantnosti tudi v jeziku in z jezikom. Sočasno sporazumevanje temelji na govornosti, ki spreminja pojmovanje standardiziranosti jezika, ta je tradicionalno temeljila na pisnosti. Statična standardizirana različica postaja manj pomembna, družbena in sporazumevalna dinamika proizvajata drugačne in nove različice jezika, te se močno notranje razčlenjujejo in interferirajo pod izrazitejšim vplivom standardnega jezika (zemljepisna narečja), mednarodnosti sporazumevanja in kompleksne dejavnosti nosilcev (družbena narečja). V javno sfero se opazno širi pogovornost. Izrazito se povečuje število poklicnih poimenovanj, ki nastopajo kot najbolj dinamični del besedišča, obenem pa narašča njihovo vstopanje v druge jezikovne različice in stile sporočanja. Posameznik z jezikom uresničuje tako svojo individualnost in ustvarjalnost kot pripadnost družbeni in kulturni skupini v aktualnem sporazumevalnem prostoru. Pomembnost vloge jezika v izobraževalnem procesu se kaže v dejstvu, da je jezik tudi način pridobivanja in oblikovanja znanja.
Ključne besede: sociolingvistika, jezikovna dinamika, variantnost jezika, pogovornost, digitalne tehnologije
Objavljeno v DKUM: 26.09.2017; Ogledov: 1058; Prenosov: 124
.pdf Celotno besedilo (214,69 KB)
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