Seminar for
DECISION MAKING – THEORY, TECHNOLOGY AND PRACTICE
PROGRAM
Plan rada Seminara Odlučivanje - teorija, tehnologija, praksa za NOVEMBAR 2024.
Četvrtak, 07.11.2024. u 13:00, Online
Željko Stević, University of East Sarajevo, Faculty of Transport and Traffic Engineering Doboj
EVALUATION OF LOGISTICS PROCESSES USING INTEGRATED MCDM-SWOT-TOWS MODEL
In this paper, based on the Strengths, Weaknesses, Opportunities, and Threats (SWOT) analysis, a matrix of Threats, Opportunities, Weaknesses and Strengths (TOWS) was formed. It represents possible business strategies of the transport company. To choose the right plan, a model based on the integration of Fuzzy PIvot Pairwise RElative Criteria Importance Assessment (fuzzy PIPRECIA), Full Consistency Method (FUCOM) and Measurement Alternatives and Ranking according to COmpromise Solution (MARCOS) methods, has been formed. A case study was conducted in the transport company from Bosnia and Herzegovina which provides services on the domestic and the European Union market for 20 years and belongs to a group of small and medium enterprises (SMEs). The SWOT analysis in this transport company was the basis for forming the TOWS matrix, which represents a set of possible business strategies. These strategies are the basis for developing five basic alternatives. The transport company should choose the best one of them for future business. The research focuses on forming a model for choosing the best strategy by which the transport company seeks to improve its business. Decision-making (DM) is not a straightforward sequence of operations, so the harmonization of methods as well as the verification of their results, are essential in the research. This model is applicable in SMEs that make these and similar decisions. Using this model, companies can adjust their business policies to the results of the model and achieve better business results. This research is the first that allows the use of such a model in making strategic decisions.
Četvrtak, 14.11.2024. u 13:00,
Online
Marina Pavlović, Mathematical Institute of the Serbian Academy of Sciences and Arts
VERA C. RUBIN - LEGACY SURVEY OF SPACE AND TIME
Vera C. Rubin Observatory is a brand new astronomy and astrophysics facility under construction on Cerro Pachón in Chile, with the first light expected in 2025. It’s named after astronomer Vera Rubin, who provided the first convincing evidence for the existence of dark matter. Rubin Observatory is the first of its kind: its mirror design, camera sensitivity, telescope speed, and computing infrastructure are each in an entirely new category. In the time it takes you to open your phone and take a selfie, Rubin will be able to image 100,000 galaxies, most of which have never been seen before. The 8.4-meter Simonyi Survey Telescope at Rubin Observatory, equipped with the LSST Camera — the largest digital camera ever built — will take detailed images of the southern hemisphere sky for 10 years, covering the entire sky every few nights and creating an ultra-wide, ultra-high-definition, time-lapse record — the largest astronomical movie of all time. This unique movie will bring the night sky to life, yielding a treasure trove of discoveries: asteroids and comets, pulsating stars, and supernova explosions. With Rubin data, we will better understand our Universe, delve into the mysteries of dark energy and matter, and reveal answers to questions we have yet to imagine. In this lecture, we’ll embark on a virtual journey through the Rubin Observatory, exploring everything required to prepare for its operations—from initial design and construction to the sophisticated software enabling its functionality and realization of the most ambiguous. We’ll also highlight the official involvement of the SER-SAG in-kind team led by the University of Belgrade, the Faculty of Mathematics, and the Astronomical Observatory in this monumental project.
Ponedeljak, 18.11.2024. u 16:00, Pariske Komune bb, Niš i
Online
Anđelka Hedrih, Mathematical Institute SANU, Belgrade, Serbia
BELOUSOV-ZHABOTINSKY SYSTEM AND ITS APPLICATION IN ROBOTICS
The Belousov-Zhabotinsky (BZ) system is one of the most famous examples of oscillating chemical reactions, where bromate ions oxidize malonic acid to produce carbon dioxide, with ferroin serving as a catalyst. This reaction is a remarkable example of a nonlinear chemical oscillator that exhibits self-organizing behavior across both spatial and temporal dimensions. Such nonlinearity allows the system to form complex, dynamic patterns, often likened to those observed in biological and physical systems. Over the years, various substances have been documented in scientific literature for their ability to modulate the dynamics of the BZ reaction. Examples include silver ions, heavy water, lipid bilayers, liposomes, electric potentials, light exposure, methanol, ethylene glycol, ascorbic acid, tannic acid, among others. Each of these modulators uniquely influences the oscillatory behavior of the reaction, potentially altering its frequency, amplitude, or spatial patterns. These modulatory effects of the BZ system have intriguing applications in fields such as robotics, where the reaction can serve as a chemical engine for small-scale robots. For instance, studies demonstrate the use of BZ-based systems in programmable hybrid digital-chemical processors, as well as in BZ liquid marbles, which act as miniature chemical reactors capable of supporting robotic motion and control. We will present and discuss these BZ applications in robotic systems and our recent research that uncovered new modulators of the BZ reaction, expanding the possibilities for precision control in both chemical processing and robotic applications.
Zajednički sastanak sa seminarima za Računarstvo i primenjenu matematiku i Biomehanika, bioinžinjering i matematička biologija.
Četvrtak, 21.11.2024. u 13:00,
Online
Dragan Urošević, Mathematical Institute of the Serbian Academy of Sciences and Arts
VARIABLE NEIGHBORHOOD SEARCH FOR THE DEGREE-CONSTRAINED k-MINIMUM SPANNING TREE PROBLEM
Let G(V,E) be a simple undirected complete graph with vertex and edge sets V and E, respectively. The degree-constrained k-minimum spanning tree (DCkMST for short) problem consists of finding a minimum cost subtree of G formed with at least k vertices of V where the degree of each vertex is less than or equal to an integer value d≦k−2. Notice that DCkMST generalizes both the classical degree-constrained and k-minimum spanning tree problems simultaneously. In particular, when d=2, it reduces to a k-Hamiltonian path problem. Application domains where DCkMST can be adapted or directly utilized include backbone network structures in telecommunications, facility location, and transportation networks. In our research we implemented Variable neighborhood search for DCkMST. Proposed method is executed on large set of test instances and obtained results are compared with results obtained by previously proposed methods.
Četvrtak, 28.11.2024. u 13:00, Pariske Komune bb, Niš i
Online
Petar Vranić, Mathematical Institute of the Serbian Academy of Sciences and Arts
A DECADE OF ENERGETICS - SHAPING THE FUTURE OF ENERGY
This presentation marks a decade of the Virtual International Conference on Science, Technology, and Management in Energy – eNergetics, an essential forum since 2015 for discussing contemporary energy challenges. Considering the ongoing climate change challenges, depletion of resources, and need for sustainable development, the 10th edition of eNergetics is not only about celebrating past accomplishments but also reaffirming this conference’s dedication to leading discussions about current energy topics. Over a decade, more than 1600 manuscripts were received for review from more than 40 different countries from all continents, with 1000+ authorships—this showcases eNergetics growing international reputation. As we embark on the next decade, eNergetics will keep inspiring and influencing the growth of fundamental energy research, policies, and practices related to the future where energy is abundant, sustainable, and accessible to all. This seminar session will reflect on conference trends over the past ten years.
Predavanja su namenjena sirokom krugu slusalaca, ukljucujuci studente redovnih i doktorskih studija. Seminar će se održavati svakog drugog četvrtka od 13:00 - 14:00h, CIITLAB, Elektronski fakultet Niš, Aleksandra Medvedeva 14, Niš
dr Lazar Velimirović
Rukovodilac seminara
dr Petar Vranić
Sekretar seminara
