A STUDY OF THE USE OF MIXED REALITY FOR CAPTURING HUMAN OBSERVATION AND INFERENCES IN PRODUCTION ENVIRONMENTS

Augmented and mixed reality is already considered as needful technology of the modern production systems. It is primarily employed to virtualize proper digital content, mainly related to 3D objects, into the human visual field allowing people to visualize and understand complex spatial shapes, their mutual relations, and positioning. Yet, the huge potential of the technology is waiting to be revealed in its usage for collecting and recording human observations and inferences about the context of the production environment. Its bi-directional interface makes it the most direct and the most efficient knowledge capturing means to date. The paper presents the challenges and benefits that come from the usage of a conceptual interface of an mixed reality application that is designed to collect data, semantics and knowledge about the production context directly from the man-in-process. As a production environment for the development, implementation, and testing of mixed reality applications for this purpose, various processes for the assembly and maintenance of medium-voltage equipment were used

Ružička days : International conference 16th Ružička Days “Today Science – Tomorrow Industry” : Proceedings

Proceedings contains articles presented at Conference divided into sections: open lecture (1), chemical analysis and synthesis (3), chemical and biochemical engineering (8), food technology and biotechnology (8), medical chemistry and pharmacy (3), environmental protection (11) and meeting of young chemists (2)

Integration challenges of high-accuracy LPIT into MV recloser

This study presents the lessons learned and challenges of developing an integrated solution of high-accuracy low-power instrument transformer (LPIT) into a medium-voltage (MV) recloser. The challenges from a design, testing and end user acceptance are presented. The main conclusion of this study is that integration of typically separate network components requires careful design choices and testing beyond existing industry standards for LPIT and MV reclosers in order to achieve higher accuracy classes

Senzorna svojstva proizvoda u tipu hamburgera različitog sastava

The authors examined the effect of additive use on sensory properties of thermally treated hamburger-type products with different raw material composition. Three experimental product groups were prepared of the following ingredients: beef and tallow, pork shoulder, beef and back bacon, pork trimmings, beef and back bacon. Common salt, polyphosphate, soybean flour TB-200, textured soy protein (Soja Protein, Bečej), SUPRO EX 33 (Protein Tehnologies International) and water were used as additives. After forming, products were thermally treated on grill. Sensory analysis was carried out by application of rank method and hedonic scale. The results of examination show that use of polyphosphate is useful in production of "hamburgers" from beef and tallow, because these samples were evaluated as more acceptable in respect of appearance, taste or juiciness. In products in which composition dominated pork meat, this effect was less expressed. The most acceptable sensory properties of hamburger-type products were attained by use of additives in the following combination: textured soy protein and SUPRO EX 33 (powder).Autori su ispitivali uticaj upotrebe dodataka na senzorna svojstva toplotna obrađenih proizvoda u tipu hamburgera različitog sirovinskog sastava. Pripremljene su tri ogledne grupe usitnjenog mesa izrađene od: goveđeg mesa i loja: mesa svinjske plećke, goveđeg mesa i čvrstog masnog tkiva; svinjskih odrezaka, goveđeg mesa i čvrstog masnog tkiva. Kao dodaci su korišteni kuhinjska so, polifosfat, sojino brašno TB-200, teksturirani proteini soje (Soja Protein, Bečej), SUPRO EX 33 (Protein Tehnologies International) i voda. Nakon oblikovanja, proizvodi su toplotna obrađivani na roštilju. Senzorna analiza je obavljena primenom metoda rangiranja i hedonske skale. Iz rezultata ispitivanja proizilazi da je upotreba polifosfata korisna u izradi "hamburgera " samo od goveđeg mesa i loja, jer su ovi uzorci ocenjeni kao prihvatljiviji u pogledu izgleda, ukusa i sočnosti. Ovaj efekat je manje izražen kod proizvoda u čijem sastavu dominira svinjsko meso. Najprihvatljivija sočnost proizvoda u tipu hamburgera se postiže upotrebom SUPRO EX 33 (u suvom stanju i u vidu granulo), a ukus kombinacijom dodataka: sojin izolat i teksturirani sojini proteini

Revealing the "hidden" Pannonian and Central Balkan Mesolithic: new radiocarbon evidence from Serbia

With the exception of the well known Mesolithic sites in the Danube Gorges (or the Iron Gates), the wider areas of the Central Balkans and southern fringes of the Great Pannonian Plain still represent a terra incognita when it comes to the presence of Mesolithic communities. The absence of Mesolithic sites in the region was associated with environmental changes in the Early Holocene, presumed low human population densities, limited possibilities of detection, or the lack of adequate research. However, valuable insights into the obscure regional Mesolithic can be gained not only by new archaeological excavations, but also by revisiting and reanalysing of existing archaeological collections. Particularly informative in this respect are the Early Neolithic sites, indicative of the extensive spread of farming communities from c. 6200 cal BC. Within the ERC Project BIRTH, a large sample of human and animal remains from these sites was dated, falling in the (expected) range between c. 6200-5300 cal BC. However, one human and several animal bone samples from the sites of Magareei mlin, Gospodinci-Nove zemlje and Grabovac-Duriea vinogradi were dated to the 8th millennium cal BC, providing the first radiocarbon evidence of Early Holocene sequences in the territory of Serbia other than the Danube Gorges. In this paper, we present the new radiocarbon dates, discuss the contextual provenance of dated bones, and explore the implications of these results for a better understanding of the problem of the "missing" and "invisible" Mesolithic in the region

Ružička days : International conference 17th Ružička Days “Today Science – Tomorrow Industry” : Proceedings

In front of you are the Proceedings of the International Conference 17th Ružička days: „Today Science – Tomorrow Industry“ that was held in Vukovar, Croatia at September 19-21, 2018. The main goal of this interdisciplinary conference is to promote excellence in science and engineering as well as application of up-to-date research results and technological achievements in industry. In its fifth issue (2011, 2013, 2015, 2017, 2019) the Proceedings continues with publishing of quality scientific and professional full papers in sections Chemical Analysis and Synthesis (2), Chemical and Biochemical Engineering (3), Food Technology and Biotechnology (4), Medical Chemistry and Pharmacy (2), Environmental Protection (9) and Meeting of Young Chemists (4). All the papers were thoroughly reviewed from respectable evaluators, to whom we express our gratitude. We are also thankful to all the authors and participants of the Ružička days, and to all that support and contribute in its organization; especially our international coorganizers EuCheMS, EFFoST and EHEDG, the members of organizing and scientific committee, plenary and invited lecturers, sponsors, and of course our highly skilled and committed associates, which put a lot of effort in preparation of this book