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ORGANIZACIJA IN NAČRTOVANJE NABAVE EMBALAŽNIH MATERIALOV V KRKI D.D.
Polona Sladič, 2009, undergraduate thesis

Abstract: V svoji nalogi so opredeljene teoretične osnove nabavnega poslovanja in so primerjane s praktičnim primerom nabavnega poslovanja v podjetju Krka, d.d., Novo mesto (v nadaljevanju Krka). Na začetku je predstavljeno podjetje Krka, njen začetek in razvoj, njene dejavnosti in poslovanje v letu 2008. Nato je poudarek na samem nabavnem poslovanju v farmacevtski industriji. Na konkretni organiziranosti Službe nabave je preučena skladnost teorije s prakso, ki se izvaja v nabavi za proizvodnjo, ki ga opravlja Služba nabave. Preverjeno je kako se izvaja sam proces nabave, kako poteka načrtovanje nabave v teoriji in v podjetju Krka. V sklepnem delu naloge je predstavljen in analiziran problem operativnega načrtovanja nabave. Delo nabave je tesno povezano s prodajo in logističnim centrom. Opisano je na kakšen način je Krka prišla do bistvenega izboljšanja in zmanjšanja stroškov odpisa nepotrebne embalaže z nadgradnjo že vpeljanega sistema SAP. SAP je bil nadgrajen z APO-m in dosežena je večja optimizacija proizvodnih kapacitet. Vpeljano je tudi tako imenovano »zamrznjeno« obdobje planiranja, kar pripomore k večji točnosti planiranja in daje nabavi možnost boljšega operativnega načrtovanja.
Keywords: - nabava - planiranje nabave - MRP (Material Requirement Planning) sistem - informacijski sistem SAP (Systems, Applications and Products) - informacijski sistem APO (Advanced Planning and Optimisation
Published: 20.07.2009; Views: 3420; Downloads: 721
.pdf Full text (3,03 MB)

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OPTIMIRANJE DOBAVNE VERIGE V PODJETJU B/S/H HIŠNI APARATI, D.O.O., NAZARJE
Romana Markelj, 2009, undergraduate thesis

Abstract: V diplomskem delu sem predstavila optimiranje dobavne verige v podjetju EUREL Poljčane. Prvi del diplomskega dela predstavlja teoretična izhodišča, ki se nanašajo na uvajanje t.i. vitke proizvodnje, metode za uvajanje vitke proizvodnje ter principe vitkih podjetij. Opisala in opredelila sem pojem upravljanje dobavne verige, vrste dobavnih verig, globalne dobavne verige, optimiranje dobavne verige, model integracije dobavne verige, ovire pri njihovi integraciji, ključne procese v njej ter opredelila bodoče trende in usmeritve na področju optimiranja dobavnih verig. V empiričnem delu sem predstavila podjetje B/S/H Hišni aparati, osnovne podatke o podjetju, kratek zgodovinski oris podjetja, proizvodni program ter politiko in strategijo podjetja. Praktični del diplomskega dela se nanaša na optimiranje dobavne verige v podjetju EUREL Poljčane. Ta del je pravzaprav raziskovalno delo, saj je bil projekt izveden pilotno in je predstavljal osnovo za izvedbo nadaljnjih projektov optimiranja dobavnih verig vseh dobaviteljev v žarišču. Pri projektu so sodelovali tudi zunanji strokovnjaki, ki so nas usmerjali pri izvajanju različnih analiz: mapa/zemljevid vrednostnega toka, analiza vrednostnega toka, design vrednostnega toka. Izdelane analize so nam služile kot osnova za izdelavo akcijskega načrta, plana implementacije ter za dejansko implementacijo bodočega stanja. Zadnji korak optimiranja dobavne verige zajema kontrolno fazo, ki je namenjena prikazu in ovrednotenju rezultatov. Rezultati oz. koristi, ki izhajajo iz implementiranih izboljšav, se partnersko delijo med ključne udeležence dobavne verige.
Keywords: Upravljanje dobavne verige, vitka proizvodnja, mapa vrednostnega toka, analiza vrednostnega toka, design vrednostnega toka, Toyotin proizvodni sistem, Just in Time, Jidoka (neodvisen, samoupraven, avtonomen), Kaizen (aktivnosti nenehnega izboljševanja), tok proizvodnje, Pull-System (material je "povlečen" na delovno mesto), Outsourcing (zunanje izvajanje dejavnosti), Lead Time (časovna perioda med prejemom naročila odjemalca in dobavo končnega proizvoda odjemalcu), MRP-Material Requirements Planning (p
Published: 25.05.2010; Views: 2981; Downloads: 471
.pdf Full text (1,43 MB)

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Intelligent process planning for competitive engineering
Valentina Gečevska, Franc Čuš, 2010, original scientific article

Abstract: Process planning is one of the key activities for product design and manufacturing. The impact of process plans on all phases of product design and manufacture requires high level of interaction of different activities and close integration of them into a coherent system. This paper presents a process model of product development with manufacturing approach based on intelligent process planning techniques with focus on optimal selection of manufacturing parameters. Some derivations of the computing model for analysis of machining conditions by optimal determination of the cutting parameters in multi-pass NC machining activities are made with implementation of new evolutionary computation techniques. Genetic Algorithm (GA) based optimization method and deterministic optimization method (DO) are developed and then implementations into real manufacturing process planning for new product developed are analyzed. The results showed that both the developed optimization methods (GA and DO), especially GA, are effective methods for solving multi-objective optimization problems during the manufacturing process planning and cutting parameters selection.
Keywords: genetic algorithm, intelligent manufacturing systems, process planning
Published: 31.05.2012; Views: 1065; Downloads: 18
URL Link to full text

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Product lifecycle management with knowledge management as a strategic approach for innovative enterprise environment
Valentina Gečevska, Borut Buchmeister, Zoran Anišić, Bojan Lalić, 2010, original scientific article

Abstract: Process planning knowledge (PPK) is one of the most important knowledge in production manufacturing enterprise. This paper analyzes the PPK and the concept of process planning information model (PPIM) implemented in production enterprise. In second part of the paper, there is done the basic information about PLM concept as a business strategy for product development where are included PPK and PPIM approaches, strategy which offer possibilities for innovation. Product Lifecycle Management (PLM) is the process of managing the whole life cycle of a product starting from generating an idea, concept description, business analyzes, product design, solution architecture and technical implementation, to the successful entrance to the market, service, maintenance and innovative product improvement.
Keywords: process planning, knowledge management, product lifecycle management
Published: 31.05.2012; Views: 1017; Downloads: 23
URL Link to full text

6.
Application of group technology in complex cluster type organizational systems
Slobodan Morača, Miodrag Hadžistević, Igor Drstvenšek, Nikola Radaković, 2010, original scientific article

Abstract: The aim of this research was to contribute to the development of structural design procedures of complex - cluster type organizational systems. Industrial clusters can help companies to improve their own market positions, effectiveness, productivity and product quality. Organization of the production process in a company is an extremely complex process itself, and when it is transferred to the cluster level, the result is a complex task which is difficult to solve. For that purpose, this paper analyses the conditions and possibilities that would enable those structures to adapt to changes in the surroundings - flexibility and management adequacy of production and organizational structures - by lowering the degree of complexity. For the time being, no simple models which would enable an increase of process effectiveness in complex organizational units like clusters have been developed. One of the possible solutions which would decrease the complexity of flows and increase process effectiveness within an industrial cluster is the application of Group approach.
Keywords: industrial clusters, group technology, planning, work cells, complexity, flexibility
Published: 31.05.2012; Views: 1128; Downloads: 22
URL Link to full text

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2-local 3/4-competitive algorithm for multicoloring hexagonal graphs
Petra Šparl, Janez Žerovnik, 2005, original scientific article

Abstract: An important optimization problem in the design of cellular networks is to assign sets of frequencies to transmitters to avoid unacceptable interference.A cellular network is generally modeled as a subgraph of the infinite triangular lattice. Frequency assignment problem can be abstracted asa multicoloring problem on a weighted hexagonal graph, where the weights represent the number of calls to be assigned at vertices. In this paper we present a distributed algorithm for multicoloring hexagonal graphs using only the local clique numbers ▫$omega_1(v)$▫ and ▫$omega_2(v)$▫ at each vertex v of the given hexagonal graph, which can be computed from local information available at thevertex. We prove the algorithm uses no more than ▫$4omega(G)/3$▫ colors for any hexagonal graph G, without explicitly computing the global clique number ▫$omega(G)$▫. We also prove that our algorithm is 2-local, i.e., the computation at a vertex v ▫$in$▫ G uses only information about the demands of vertices whose graph distance from v is less than or equal to 2.
Keywords: mathematics, graph theory, graph colouring, 2-local distributed algorithm, cellular networks, frequency planning
Published: 01.06.2012; Views: 1231; Downloads: 51
URL Link to full text

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A model of simulation environment for prediction and optimisation of production processes
Igor Drstvenšek, Mirko Ficko, Ivo Pahole, Jože Balič, 2004, original scientific article

Abstract: Paper describes means and methods for computer based optimisation of production processes using a new approach based on technological database (TDB) with genetic algorithm incorporated into a database management system (DBMS). The TDB serves as a store of tools and machine tools from which they can be assigned to different work operations. Work operations are basic entities of orders placed into queues. The goal of the model is to find available resources from the TDB in order to empty the queue in shortest time with lowest costs. To this purpose the model consist the technological database whose DBMS includes a genetic algorithm based optimiser. It checks the orders queue and searches for appropriate combinations of tools and machine tools from the TDB, which can be combined into needed work operations. It also performs an optimisation of time and costs according to so called static parameters of tools and machine tools.
Keywords: production processes, simulation, process planning, technological databases, genetic algorithms
Published: 01.06.2012; Views: 1023; Downloads: 53
URL Link to full text

10.
Slovenia: potentials and limits of urban development
Metka Sitar, 2004, published scientific conference contribution abstract

Keywords: spatial planning, Maribor, Slovenia
Published: 01.06.2012; Views: 1289; Downloads: 35
URL Link to full text

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