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Approximate cubic Lie derivations
Ajda Fošner, Maja Fošner, 2013, izvirni znanstveni članek

Opis: We study the stability and hyperstability of cubic Lie derivations on normed algebras. At the end, we write some additional observations about our results.
Ključne besede: Lie derivations, normed algebra
Objavljeno: 13.06.2017; Ogledov: 16; Prenosov: 0
.pdf Polno besedilo (1,85 MB)

System dynamic model of measures for reducing the number of road accidents due to wrong-way movement on motorways
Darja Topolšek, Martin Lipičnik, 2009, kratki znanstveni prispevek

Opis: This paper provides a system dynamic model for reducing the number of motorway accidents due to wrong-way driving. Motorway accidents are often fatal due to high speeds. It is therefore necessary to carry out all the possible countermeasures in order to achieve adequate traffic management. One of the reasons for motorway accidents is driving in the wrong direction. Based on the analysis of the data on motorway accidents caused by driving in the wrong direction and based on the knowledge of individual project elements of junctions and slip roads, this paper will focus on this area. The possible countermeasures, presented here for preventing drivers from driving in the wrong direction on motorways drastically reduce the number of U-turn maneuvers that result in driving in the wrong direction and influence the level of safety on motorways. With the help of this model of system dynamics the countermeasures for reducing the number of such drivers will be confirmed and their effects will be shown.
Ključne besede: traffic safety, motorway, direction, road accidents, measures, system dynamics
Objavljeno: 06.06.2017; Ogledov: 11; Prenosov: 0
.pdf Polno besedilo (135,13 KB)

Prevention of wrong-way driving on freeways
Darja Topolšek, 2007, pregledni znanstveni članek

Opis: Traffic accidents that occur on freeways often end tragically because of high driving speed. Wrong-way driving is also one of the causes of accidents on freeways. Research is based on the analysis of traffic accident data caused by wrong-way driving on freeways and considering valid technical specifications for connections and junctions design elements. Research is based on the analysis of the data of traffic accidents that occurred because of wrong-way driving on freeways and on the consideration of valid technical specifications concerning connections and junction design elements. The thesis presents possible countermeasures for prevention of wrong-way driving and consequential decrease in the number of traffic accidents. The proposed prevention countermeasures of wrong-way driving on freeways could greatly reduce incorrect traffic vehicle movements that are the consequence of wrong-way driving and thus positively enhance the traffic safety level on freeways.
Ključne besede: wrong-way driving, freeway, multilevel connections, multilevel junctions, traffic safety, traffic accidents, countermeasures
Objavljeno: 05.06.2017; Ogledov: 13; Prenosov: 0
.pdf Polno besedilo (4,30 MB)

Port hinterland modelling based on port choice
Tomaž Kramberger, Bojan Rupnik, Gregor Štrubelj, Klemen Prah, 2015, izvirni znanstveni članek

Opis: This paper presents a new approach for hinterland modelling based on the results of port choice modelling. The paper follows the idea that the shippers' port choice is a trade-off between various objective and subjective factors. The presented model tackles the problem by applying the AHP method in order to obtain ports' preference rates based on subjective factors, and combine them with objective factors, which include port operation costs, sailing times, and land transport costs using MILP. The ports' hinterlands are modelled by finding the optimal port of choice for different locations across Europe and merging the identical results. The model can be used in order to produce captive hinterland of ports and can also be exploited in order to analyse how changes in the traffic infrastructure influence the size of hinterlands.
Ključne besede: port hinterland modelling, captive hinterland, contestable hinterland, ports, MILP, GIS, objective and subjective factors
Objavljeno: 05.06.2017; Ogledov: 14; Prenosov: 0
.pdf Polno besedilo (495,28 KB)

Monte Carlo simulation-based approach to optimal bus stops allocation in the Municipality of Laško
Dejan Dragan, Tomaž Kramberger, Martin Lipičnik, 2011, izvirni znanstveni članek

Opis: The paper addresses the problem of optimal bus stop allocation. The aim is to achieve reduction of costs on account of appropriate re-design of the process of obligatory transportation of children from their homes to the corresponding schools in the Laško municipality. The proposed algorithm relies on optimization based on the Monte Carlo simulation procedure. The number of calculated bus stops is required to be minimal possible, which can still assure maximal service area within the prescribed radius, while keeping the minimal walking distances pupils have to go across from their homes to the nearest bus stop and vice versa. The main issues of the proposed algorithm are emphasised and the working mechanism is explained. The presentation of calculated results is given and comparison with some other existing algorithms is provided. The positions of the calculated bus stops are going to be used for the purpose of physical bus stops implementation in order to decrease the current transportation costs.
Ključne besede: location problems, maximal covering problems, optimization, Monte Carlo simulation
Objavljeno: 05.06.2017; Ogledov: 17; Prenosov: 1
.pdf Polno besedilo (1,01 MB)

Models of inter-organizational logistics management in Slovenia
Sašo Murtič, Andrej Lisec, 2015, izvirni znanstveni članek

Opis: Throughout the history, the transportation of goods and related logistics have played an important role in human development and existence. This pertains to numerous interlinked processes, whose management is often linked to social system, international linkages, development of industry, market and market specifics. In modern times, the management of these processes is increasingly bound to globalization of production and market, moving of production to countries with cheaper labour force, environmental protection. The present Slovenian economy depends to a large extent on economies and corporate relations of the European Union and the world. Such inter-connectedness demands frequent transportation of semi-finished and finished goods. By providing timely delivery of goods, transportation consequently enables inter-organizational linkages and individual production, economic, market and other processes. Organizational and inter-organizational management of transport logistics demands profound understanding of transport flows, freight forwarding expertise and knowledge of transport, tax, environmental and other related regulations. Adequate knowledge and mastering of cultural, linguistic, national and other differences is important as well. The presented analysis and evaluation form the basis of the construction of inter-organizational model of logistics management in Slovenia.
Ključne besede: logistics, logistics management, inter-organizational linkages, transport, outsourcing, Slovenia
Objavljeno: 05.06.2017; Ogledov: 19; Prenosov: 1
.pdf Polno besedilo (183,40 KB)

Lean and green paradigms in logistics
Vaska Pejić, Tone Lerher, Borut Jereb, Andrej Lisec, 2016, pregledni znanstveni članek

Opis: This paper provides a systematic review of published research on lean logistics, green logistics and the combination of both paradigms. Although prior research on all three topics exists, only a few have focused on the field of logistics as such. The present analysis comprises an examination of 98 scientific articles from 35 international journals, published between the years 1994 and 2015. The published studies are classified by next divisions: journal, paradigm, time distribution, research stream and sector-wise focus. Although key findings indicate that over the last couple of years research on all three topics has increased, a research gap regarding the studies of lean and green logistics when combined, has been identified. For all three topics the domination in research typology has been extracted. The findings indicate that most papers examined on the topic of lean logistics come from the manufacturing industries, whereas for the topic green logistics and a combination of green and lean topics no specific sector was identified.
Ključne besede: logistics, lean logistics, green logistics, review of research
Objavljeno: 02.06.2017; Ogledov: 55; Prenosov: 4
.pdf Polno besedilo (690,64 KB)

Influence of relationship commitment and trust on collaborative behaviour in supply chains
Sonja Mlaker Kač, Irena Gorenak, Vojko Potočan, 2015, izvirni znanstveni članek

Opis: The paper discusses theoretically and examines empirically the influence of the relationship commitment on collaborative behaviour in supply chains. In today's unstable business environment companies should collaborate to achieve mutual goals and competitive advantage. Defining relationship commitment and collaboration in supply chains (from social exchange theory point of view) is the basis of the research of this paper. Our aim is to examine the influence of relationship commitment on collaboration in supply chains in Slovenian economy. The qualitative research part discusses if the relationship commitment between partners in supply chain influences the collaborative behaviour between partners and which are the antecedents of relationship commitment. The research is based on a quantitative analysis of the online questionnaire survey made on the Slovenian economy. The research results show strong influence of trust and relationship commitment on collaboration between partners in supply chains.
Ključne besede: business ethics, relationship commitment, trust, collaborative behaviour, supply chains
Objavljeno: 02.06.2017; Ogledov: 22; Prenosov: 0
.pdf Polno besedilo (204,76 KB)

Identification of drivers in traffic accidents and determination of passenger position in a vehicle by finger marks
Matej Trapečar, Martin Lipičnik, Jože Balažic, 2012, pregledni znanstveni članek

Opis: The following paper aims to illustrate certain investigative activities in the forensic analysis and examination of the scene of traffic accidents. When a traffic accident occurs, the scene must be secured as soon as possible to enable professional and proper forensic investigation. Failure to secure the accident scene might result in losing or contaminating the traces, which makes it more difficult to prove or explain trace evidence in further procedure or even makes such evidence inadmissible. The topic is discussed from the viewpoint of crime scene examination, since analysing and investigating traffic accidents requires a great deal of expertise and attention of the investigators. Complex traffic accidents include feigned accidents, hit-and-run accidents as well as accidents in which the driver and passengers, dead or alive, need to be identified. In identifying the passengers, standard criminal investigation methods as well as police forensic and forensic medicine methods are followed. Such methods include confirming the identities with identity documents, other documents and vehicle ownership, fingerprints, biological traces, fibre traces, contact traces, traces of physical injuries on the driver and passengers, etc. According to the results obtained in fingerprint detection on human skin surfaces, this method can also be applied in confirming physical contact between the driver and the passengers in the accident, e.g. in the event of moving the victims and changing the scene of the accident.
Ključne besede: traffic accidents, accident analysis, driver's identity, passengers' position, finger marks, human skin
Objavljeno: 02.06.2017; Ogledov: 20; Prenosov: 0
.pdf Polno besedilo (332,55 KB)

Holistic thinking aproach
Andrej Lisec, Bojan Rosi, Zvonko Kavran, 2008, izvirni znanstveni članek

Opis: Modern complexity of management is associated with im- portant decision making, confronting a great number of useless information. Selection of information - the choice of only qual-ity ones, i. e. essential ones, is a big problem in management decision-making. Implementation of systemic approach i. e. dialectical-network thinking (DNT) can help to deal with it. The paper presents a holistic thinking approach in a case study for the Slovenian parcel postal problem. The volume of parcel flows at the Post of Slovenia between Posts is increasing rapidly and it requires a new design of the postal network. This paper presents a reorganization of parcel services between Postal Logistics Centers and Posts by adding Regional Parcel Centers and Parcel Posts to the network. A case for the area covered by Ljubljana Postal Logistics Center is given, which takes into consideration the sorting out and the retaining of parcels in the Posts, Parcel Posts and Regional Parcel Centers within their individual areas.
Ključne besede: systemic thinking, dialectical network thinking, management, logistics, postal services, postal delivery
Objavljeno: 02.06.2017; Ogledov: 25; Prenosov: 0
.pdf Polno besedilo (3,22 MB)

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