Iskanje po katalogu digitalne knjižnice

Opis: Numerical simulations play a vital role in the modern engineering industry, especially when faced with interconnected challenges such as particle interactions and the structural integrity of conveyor systems. This article focuses on the handling of materials and emphasizes the importance of using parametric numerical analysis to improve efficiency, reduce wear, and enhance the structural integrity of horizontal screw conveyors. Through the utilization of the Design of Experiments, we systematically investigated critical parameters such as screw pitch, clearance, wear, rotational velocity, and additional structural factors. This examination was carried out within a well-defined parametric framework, utilizing a combination of software tools provided by the Ansys suite and Minitab. The findings demonstrate the effectiveness of the Design of Experiments analysis in achieving improved performance and provide valuable insights for engineers and researchers involved in the design of conveyor systems. Furthermore, this comprehensive approach clarifies how conveyor systems respond to changes in parameters and highlights the complex interaction between transported particles and the conveyor system. We present a detailed analysis that clarifies the complex relationships and dependencies among different parameters, providing engineers and researchers with valuable insights. By understanding the interactions of these factors, the methodology provides not only results but also a strategic framework for advancing conveyor system design and engineering practices.
Ključne besede: discrete element method, design optimization, horizontal screw conveyors, parametric study, conveying equipment, bulk handling, bulk solids, abrasive wear, screw conveyor, FEA, performance analysis
Objavljeno v DKUM: 09.04.2024; Ogledov: 275; Prenosov: 43
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Opis: This article presents the results of comparisons between investment into ICT and the current state of equipment in Slovenian high schools compared to similar schools in the EU member states. Extensive research is based on surveying and interviews with the headmasters of 10 Slovenian high schools, jointly representing a typical sample of schools, as well as the different aspects of using ICT in their schools. The research results have shown that Slovenian high schools are substantially worse equipped with ICT than similar schools in the developed countries of the EU. This is evident in the lack of modern forms of organization, operation and education based on ICT. Slovenian high schools can only modernize their organization and operations if the Slovenian government starts investing substantially more into purchasing equipment, teacher training and the promotion of the knowledge, skills and competences that can only be developed using ICT.
Ključne besede: ICT, education, high school, schools equipment
Objavljeno v DKUM: 22.01.2018; Ogledov: 1315; Prenosov: 349
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Opis: Logistika na delovnih mestih in oskrba delovnih mest sta dve izmed glavnih podpornih funkcij realizacije procesa proizvodnje. Različni avtorji se strinjajo da so proizvodni procesi in logistične storitve med seboj povezani in večinoma celo nerazdružljivi. Namen magistrskega dela je podati način, kako se lotiti raziskovanja deleža vpliva oskrbe delovnih mest na produktivnost z uporabo metodologije zajema podatkov in matematičnih modelov za izračun vpliva oskrbe. Vpliv oskrbe delovnih mest na različnih, v praksi priznanih vrstah produktivnosti (OEE, SRP in TRP), smo tako na podlagi matematičnih modelov, ki smo jih v magistrski nalogi definirali in metodologije zajema podatkov razvite z naše strani, merili na praktičnih proizvodnih primerih znotraj podjetij v predelovalni panogi. Na tak način smo realizirali cilj magistrskega dela in prišli celo do konkretnih zaključkov o vplivu oskrbe na produktivnost.
Ključne besede: logistika, oskrba delovnih mest, proizvodna logistika, produktivnost, overall equipment effectiveness (OEE), single resource productivity (SRP), total resource productivity (TRP)
Objavljeno v DKUM: 29.01.2015; Ogledov: 1813; Prenosov: 225
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Opis: Despite the fact that maintenance of array of machinery and equipment is often considered as one of the backup processes or operative functions, its reliable and safe performance is extremely important for every day-to-day routine work, especially operations related to logistics. The latter is interdisciplinary professional and scientific activity which combines variety of operations and subsystems, including the maintenance, which is the subject of research in this paper. It is important to bear in mind that any object invented or fabricated by man needs maintenance. It is simply impossible to discuss comprehensive and quality logistics without considering the function of maintenance, i.e. providing reliable function of logistic machinery and equipment that is overall equipment effectiveness.
Ključne besede: logistics, maintenance, strategy, requirements specification, quality, user satisfaction, overall equipment effectiveness
Objavljeno v DKUM: 05.06.2012; Ogledov: 2139; Prenosov: 53
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