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Relational database as a cogitative part of an intelligent manufacturing system
Igor Drstvenšek, Mirko Ficko, Jože Balič, 2004, izvirni znanstveni članek

Opis: An intelligent manufacturing system is intended to produce one or more subjects that it is designed for in an optimal way. This means that it has to find a proper production process to produce the subject in an optimal way. The manufacturing system can be called "intelligent" when it is able to find applicable optimisation criteria upon its past experiences thus improving its performance in future. Therefore, an intelligent manufacturing system needs capabilities to store data and make decisions upon them. Such a "brain" can be established by a proper design of a technological database and its database management system (DBMS). Examining all constitutive parameters of a work operation a model of a production process organization can be made, which can serve as a basis for a suitable database design. In addition, an application programme that will check the existence and availability of work operations in the database has to be added to the DBMS. What remains are some optimisation criteria upon which we will choose an operation among suitable and available work operations. This task is fulfilled by a genetic algorithm optimisation technique that would consider work operations' data as parameters of optimisation and on this basis search the optimal one out of the set of available operation.
Ključne besede: production processes, optimisation, relational database, database management systems, production automation, manufacturing system
Objavljeno: 01.06.2012; Ogledov: 1074; Prenosov: 58
URL Povezava na celotno besedilo

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OPTIMIZACIJA PROIZVODNIH PROCESOV Z UPORABO METODE VREDNOSTNIH TOKOV
Blaž Radej, 2014, magistrsko delo

Opis: Metoda vrednostnih tokov omogoča identifikacijo vzrokov raznovrstnih izgub v procesih in predvideva uporabo različnih orodij, katerih apliciranje v realnem okolju zagotavlja odpravo vzrokov izgub. V magistrski nalogi bomo zaradi lažjega razumevanja osnov proizvodnje opisali teorijo proizvodnih sistemov in procesov, opisali vrste razmestitev naprav in strojev, pomen planiranja in vodenja proizvodnje ter uravnavanja zalog in opisali pojem učinkovitosti naprav. Podrobneje bomo analizirali tehnološke in logistične procese na eni od obstoječih montažnih linij podjetja Hella Saturnus Slovenija d.o.o., na kateri se izdelujejo žarometi za osebno vozilo Porsche Cayenne. Izvedli bomo prikaz in analizo trenutnega stanja vrednostnih tokov ter podali predloge za prenovo procesov v smislu definiranja korektivnih ukrepov za odpravo vzrokov izgub znotraj montažnega procesa. Po izvedeni implementaciji teh ukrepov bodo kvantitativno ocenjeni tudi učinki prenove procesa, opravljeno bo testiranje hipotez v realnem okolju, opisani pogoji za izvedbo metode vrednostnih tokov in možnosti nadaljnjega razvoja.
Ključne besede: Prenova poslovnih procesov, Metoda vrednostnih tokov, Analiza trenutnega stanja, Toyota Production System, Faktor učinkovitosti OEE
Objavljeno: 03.07.2014; Ogledov: 2556; Prenosov: 449
.pdf Celotno besedilo (4,66 MB)

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Multi attribute decision model for orchard renewal - case study in Bosnia and Herzegovina
Karmen Pažek, Črtomir Rozman, Ferhat Ćejvanović, Andreja Borec, Darja Majkovič, Vjekoslav Par, Jernej Turk, 2005, izvirni znanstveni članek

Opis: The fruit production in Bosnia and Herzegovina (BIH) is slowly returning to normality after Balkan wars. Due to favorable climatic and soil conditions it presents a clear business opportunity for family farms. The decision which fruit species/variety to grow is a complex decision and should be made on the basis of sound empirical analysis. This paper present a multi criteria model for planning and decision making methodology based on expert system DEX-i. In the first stage the technological and financial cost benefit analysis were conducted for each fruit production alternative. The results were further evaluated with expert system DEX-i considering all possible criteria influencing the fruit grower decision. In the case of a sample family farm the plum yielded with best multi criteria evaluation, followed by apple and pear, while sour cherry gave unsatifactory outcome.
Ključne besede: cost benefit analysis, fruit production, multi attribute decision modeling, expert system DEX-i
Objavljeno: 10.07.2015; Ogledov: 569; Prenosov: 14
URL Povezava na celotno besedilo

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Strawberries from integrated and organic production
Janja Kristl, Andreja Urbanek Krajnc, Branko Kramberger, Silva Grobelnik Mlakar, 2013, izvirni znanstveni članek

Opis: As the nutritional quality of food is becoming increasingly more important forconsumers, significant attention needs to be devoted to agricultural practices and their influences on the nutrient contents in food. The presentedinvestigation studied the mineral contents and antioxidant activitiesin the fruits of four organically-grown strawberry cultivars 'St. Pierre', 'Elsanta', 'Sugar Lia' and 'Thuchampion' when compared to those of integrated-grown plants. The strawberries were digested and analyzed for K, Mg, Fe, Zn, Cu, and Mn using an atomic absorption spectrometer, whilst P was analyzed using a vanadate-molybdate method. In addition, antioxidant activity was estimated by using the ABTS assay. The results showed that the mineral contents and antioxidant activities in strawberries depends on the cultivar, and its production system. Organically-grown fruits showed higher antioxidant activities and Cu content than the integrated fruits, whilst the integrated fruits were superior in their contents of P, K, Mg, Fe and Mn. All the cultivars showed similar Zn content, probably reflecting the fact that the Zn content in strawberries does not depend on the cultivar.
Ključne besede: strawberries, minerals, antioxidant activity, production system
Objavljeno: 30.12.2015; Ogledov: 543; Prenosov: 69
.pdf Celotno besedilo (117,29 KB)
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Material and energy balance in the planning of production costs
Manuela Ingaldi, Dorota Klimecka-Tatar, 2016, samostojni znanstveni sestavek ali poglavje v monografski publikaciji

Ključne besede: material, energy, manufacturing system model, production costs, planning
Objavljeno: 11.05.2018; Ogledov: 351; Prenosov: 44
.pdf Celotno besedilo (1,03 MB)
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