DIM ESEE 2018
LECTURERS & LESSONS

LECTURERS & LESSONS2018-08-30T12:01:16+00:00

DIM ESEE 2018 – DEEP INTELLIGENT MINING

LECTURERS

Dr. Philipp Hartlieb
Senior Researcher
Chair of Mining Engineering and Mineral Economics
Montanuniversitaet Leoben
Franz Josef Strasse 18, 8700 Leoben, Austria
philipp.hartlieb@unileoben.ac.at

Philipp Hartlieb is a senior researcher at the Chair of Mining Engineering at Montanuniversitaet Leoben. His key research and teaching activities lie in the field of “excavation engineering”, trying to optimize all aspects of excavation processes. He is experienced in both drilling & blasting, and mechanical excavation and has a special focus on alternative excavation concepts aiding the conventional processes. Currently his research is dedicated to blast vibrations and blast fragmentation, trying to find the proper link of minimum vibrations and environmental side-effects and optimum fragmentation and excavation behavior guaranteeing a most economic process. Other major research activities include the application of mechanical excavation equipment for quick, reliable, and economic development of drifts and shafts in underground hard rock mines. A field where conventional drilling & blasting does not any more meet the performance goals set by the mining industry. Dr. Hartlieb is the author of a range of publications related to that field and has given several lectures at highly recognized universities in the USA, Sweden and Russia.

Felix Gaul
Mine Manager
Wolfram Bergbau und Hütten AG
Oberfelben 54, ,7530 Mittersill, Austria
GSM: +43 664 9277079
f.gaul@wolfram.at

Felix Gaul is the manager of the underground Mittersill mine. He is a German mining engineer with 30 years of experience in underground hard rock mining.
He worked as a consultant, developing mines in Turkey and Tunisia and as a mining engineer in Germany and the USA. Since 1996 he works in Austria for Wolfram Bergbau in different positions. During this time the mine has developed to Austria’s biggest and most productive underground mine.  Over the years he has given several lectures at different mining conferences.

Alfred Maier
Lector for Mine Safety
Montanuniversitaet Leoben, Chair of Mining Engineering
Franz-Josef-Straße 18,  8700 Leoben, Austria
GSM: +43 660 48 96 549
glueckauf.maier@gmail.com

Today Alfred Maier is lector for mine safety at the chair of mining engineering.

  • Education: Montanuniversitaet , Mining Engineering, MSc, PhD; Karl Franzens Universitaet Graz, Master of Laws; Several Internships in Civil Engineering and Mining
  • Professional career: Local Mining Authorities (Leoben, Klagenfurt, Wien), 1994 – 2006 – Ministry of Economics, Head of Division Mining Technology & Safety, 2003 – 2006 – Ministry of Economics, Deputy Director General Mining, 2006 – 2011 – Ministry of Economics, Director General for Energy & Mining,
  • 1999 – 2018 -Montanuniversitaet Leoben, Chair of Mining Engineering and Mineral Economics, Lector for mine safety since 1999, international affairs and EIT RawMaterials from 2014 – 2018.
  • Several Crisis Management Tasks: i.e. Lassing mine accident, Eiblschrofen, Seegrotte, Jochberg etc.

Mark Ganster
Manager Blasting Technology – Europe
Weissenbach 16
8813 St. Lambrtecht, Austria
GSM: +4369913585280
mark.ganster@austinpowder.eu

Mark Ganster was born in Leoben / Austria and is now 41 years old. First he received a multidisciplinary education at a higher technical college in Mechanical Engineering. After obtaining a MSc. Diploma in Applied Geosciences from the Mining University of Leoben/Austria he joined RHI-company as a mine geologist. During his time at University he was working for several tunnelling companies in foreign countries as a blasting engineer. He also supported seismic projects for geophysical exploration of gas and water. Since 2004 Mark Ganster is with Austin Powder International. Until 2014 he was responsible for the Drilling and Blasting Operations in Austria as well as for global technical assistance. From 2015 till now he is in the role of “manager blasting technology Europe” for Austin Europe. Currently he is finishing his MBA study in “International Business” at the Danube University Krems.

Waldemar Korzeniowski
Dr hab.inż. prof.
AGH University of Science and Technology, Faculty of Mining and Geoengineering
Al. Mickiewicza 3030-056 Kraków, Poland
GSM: +48 693 550 177
walkor@agh.edu.pl

Waldemar Korzeniowski, previously Head of the Department of Underground Mining and v-ce Dean for education is currently a professor of mining engineering at AGH University. With more than his 35 years’ professional experience, both in research and teaching, he has focused on underground mining technology for metal ore mines, salt and hard coal. Particularly, he is interested in applied geomechanical issues based on in situ measurements in mines and their relations to stability of underground excavations. His research is usually based on experiments performed in mines but also on laboratory tests and numerical modeling. He was granted with a half year scholarship at NTNU University in Trondheim, Norway, working there on sin situ stress measurements He is an author of original, high load capacity machine for rock bolt testing. He was a leader of numerous projects dedicated, among others, to rheological properties of pillars, rock mass reinforcements and their monitoring under long term and dynamic loading. He has published over 100 scientific papers and several patents. He was a visiting lecturer or research consultant in Chile, Peru, Egypt and Algeria. He has supervised 4 PhD thesis and reviewed doctoral dissertations or habilitation works in Poland, Germany and India. He is an expert of Higher Mining Authority WUG, Poland.

Dmytro Maltsev
Assist. Prof., Ph.D
National TU Dnipro Polytechnic
pr. Dmytra Yavornytskoho, 19, 49000 Dnipro, Ukraine
GSM: +380 96 82 565 41
m_dima@3g.ua

Dmytro Maltsev was born in 1983. In 2005 he graduated from the National Mining University with the Master’s degree in mining engineering, with the level of researcher in «Mining», and entered a post-graduate course at the Department of Underground Mining. From 2005 to 2008 he combined the studies at the graduate school and work at the department, for 5 years as an Assistant Lecturer. Since 2013 and until now he has been working as an Associate Professor at the «National Mining University» at the Department of Underground Mining. In 2013 he defended thesis in specialty 05.15.02 «Underground Mining» on «Substantiation of blast-hole drilling parameters during destruction of massif containing uranium ore». The thesis is related to the large volume of research in real geological conditions at mining enterprises. He has published over 30 scientific papers including 19 papers published in professional journals of Ukraine and 15 abstracts at international and national conferences, one reference guide. He stands on an active social position and participates in professional activities in the field of ore deposits. Now Dmytro Maltsev is the Candidate of Technical Sciences and Associate Professor of the underground mining department and has more than 10 years of experience in the field of ore extraction. One of his key activities is the study of the scientific principles of leaching metals in the geotechnical method. Another important research field are scrutiny some aspects of the compatibility of mineral mining technologies and substantiation of mineral extraction from man-made deposits.

Olena Sdvyzhkova
Prof. Dr.
National Technical University “Dnipro Polytechnic”
D. Yavornitsky avenue, 19, 49005, Dnipro, Ukraine
GSM: +3867 630 10 48
sdvyzhkova@gmail.com

Olena Sdvyzhkova is a doctor of technical science since 2001, the Director of the Research and Educational Center “Geotechnical System Stability”, the Chair and Professor of Department of Mathematics. She is an expert in the field of geomechanics and estimation of an opening stability. Her key activities are applying the statistical strength theory to consider the real properties of heavily jointed rock mass and performing the adequate mathematical simulation of geomechanical processes under complicated geological conditions. She has more than 20 years of experience in carrying out the projects related to underground mining and support design. In particular, her last project (2015-2017) funded by the main Ukrainian mining enterprise «DTEK»  PJS Company is related to excavating through the area of regional fault that is a challenge in terms of weak and watered rocks. This case study required predicting the disintegrated rock mass behavior and modeling the rock failure to develop special support design and ensure the excavation stability. Another important research field is forecasting the rock bursts based on spectral characteristics of harmonic oscillations that propagate in the rock mass when the rocks are destroyed by mining mechanisms. Rock bursts are always associated with abrupt brittle fracturing that provokes a gas release. That is why developing the criterion of a crack initiation and propagation under simultaneous effect of quasistatic stresses and elastic oscillations is of great interest. She has written or been the co-author on more than 90 of scientific and technical papers. She has also given invited lectures and is a co-author of many text books related to geomechanics, statistics and calculus. She is a member of Academy of Mining Sciences of Ukraine.

Roman Dychkovskyi
Prof.
Underground Mining Department , Dnipro University of Technology
D Yavornytskogo ave. 19, 49000 Dnipro, Ukraine
Tel: +38 0577446214
dychkovskyi.r.o@nmu.one

Roman Dychkovskyi is the Doctor of Technical Sciences, Professor of Underground Mining Department in Dnipro University of Technology (former: National Mining University). Also he is the Deputy Vice-rector for Scientific Affairs and the Head of the Department of Development & Research and responsible for organizing and managing the scientific and research activity in this university. Under his supervision it is conducting the innovation activity of the university and transfer technologies to industry.
Roman Dychkovskyi is the specialist in the extracting the thin and very thin coal seams, including reserves with different structural changes; substantiation the mining technologies in zones of geologic infringements and stress borders; underground coal gasification; management of mining pressure; simulation the mining processes and other problems related to mining activity. His scientific work is well known in Ukraine, Poland, Russia, Germany and other countries. He is author more than 150 publications (including 7 monographs and 22 patents). Also he is the member redaction commission of 4 international journals and magazines: “Bulletin of National Mining University”, “Suitable Development”, “Mining of Deposits” and “Wiadomości Górnicze”.

Dmytro Rudakov
Prof. Dr.
National Technical University “Dnipro Polytechnic”
D. Yavornytskyi av., 19, 49005, Dnipro, Ukraine
GSM: +38 098 377-99-63
rudakovdv21@gmail.com

Dmytro Rudakov is the Chair and Professor of Department of Hydrogeology and Engineering Geology and the researcher with a background in applied mathematics and 25 years of experience in the field of hydrogeology. One of key points of his research is modelling of mine flooding and related processes in mines studied in details in his dissertation for the degree of Doctor of technical sciences. Another important field of his research is modelling of contaminant transport in aquifers caused by the leakages from mine water containment ponds, tailings, and other mining sites that affect ground water quality. Last years he focused on safety of tailings management facilities (TMFs) as complex geotechnical systems that store hazardous mining waste; he was one of key technical experts who developed the TMF Checklist on the UNECE level and now takes part in two on-going international projects in this field. He has written or been the co-author on more than 100 of scientific and technical papers as well as textbooks related to ground water quality, mining hydrogeology and other topics. He had also research stays in Germany and the USA on the issues of environment and mining hydrogeology, and water treatment.

Marian Šofranko
assoc. prof. MSc., PhD.
Technical University of Košice
Faculty of Mining, Ecology, Process Control and Geotechnologies Park Komenskeho 19, 042 00 Kosice, Slovakia
GSM: +421 911 970 066
marian.sofranko@tuke.sk

Marian Sofranko is the head of the department of Montaneous Sciences. Since 2003, he has been working as Assistant Professor at the Faculty of Mining, Ecology, Process Control, and Geotechnologies at The Technical University of Kosice. At this faculty he received his MSc (2000) and PhD (2006) degrees in mining. He graduated (2004) in EGEC (European Geotechnical and Environmental Course). In 2003, he obtained the award of the Dean of the Faculty BERG. His pedagogical and research interests include Mining, Blasting, Safety of mines, Safety risk assessment and Prevention of Major Industrial Accidents. He is the investigator of several research and application projects in this field of research. He was the principal investigator of the research grant (successfully completed): “Research of the mine environment for creation of a methodology for implementation of modern techniques, technologies for safety enhancing of operation.” At the last time he is responsible solver of tasks of applied research with EuroTalc company in Slovakia titled: „Safety analysis of talc mine in Gemerska Poloma“ and is solver of task of applied research with SMZ a.s. Jelšava, titled: „Modeling of rock solid state stability and mining process to assess the need to dispose of a overburden pillar in the mining operation of SMZ a.s. Jelšava.” He holds a certificate of safety technician (from y. 2005) and blaster licenses for open-pit mining (from y. 2006). Member of the Presidium of the Slovakian Mining Society. Member of the Slovak association for blasting and drilling.

Karol Horansky
Dipl. Eng.
Technology Cluster for Effective Earth Resource Utilization
Rampová 6, 04001 Košice, Slovakia
GSM: +421 948 129 105
karol.horansky@efusion.sk

Karol Horansky is a professional in the R&D sector with over 14 years experiences as Business developer and Director at Atlas Copco Ukraine. From 2014 till today he is the Director of Technology Cluster for Effective Earth Resource Utilization. The Technology Cluster for Earth Resource Utilization was founded with goal to consolidate efforts and R&D activities in different technical disciplines which allow developing the technology and products for effective utilization of Earth resource in global perspective. The cluster providing activities for fulfilling the innovation strategy, increasing of competitive capabilities for business sector based on the transfer R&D results to application field, preparing the feasibilities studies and concepts, basic research, R&D services for partners active in development of technology for systematics Earth resource utilization, support in engineering activities for transfer of innovations to application fields connect to Earth resource utilization. Karol Horansky was responsible for: R&D activities, build the private R&D center (2014/ 2015 – 1200/ 1700 m2), Profit & Loss and the Balance Sheet, keep defined targets, Company development – processes, presence on the market, competence development, procedures, safety, and efficiency. Active participation in design phase of prototypes, planning, organizing and managing all processes related to production of prototypes and test phase of prototypes for all company projects. Active participation in technical, design, production, delivery and realization phases on delivered solutions for customers.

DIM ESEE 2018 – DEEP INTELLIGENT MINING

LESSONS

As newly developed mines lie in ever greater depth the time to first production will be longer and longer. This has to do with the increasingly complicated geotechnical situation (stresses are getting higher) avoiding quick advance rates, but also with the tools used for the development of these drifts and tunnels. This lecture will discuss the special needs of deep mines and how infrastructure can fulfil these needs. Starting from a basic introduction of different types of accesses and ways to build these accesses, specific aspects will be discussed in detail, developing an overall picture and providing guidelines for the application in a practical use.

LECTURER: Philipp Hartlieb (Montanuniversität Leoben, Austria)

Metal ore mining technologies are very interesting from engineering point of view due to their usually relatively complicated and irregular orebodies forms (particularly as compared with coal seams). In steep or vertical orebodies we usually use so called mass mining methods (block caving, sublevel caving, etc.,) which are usually more economically effective as against horizontally occurring mineralization, where we use different technologies. Exploitation of mineral deposits at high depth with Room & Pillar mining method is challenging and very often requires maintenance of many kilometers of excavations subjected to intensive stress, particularly within strongly faulted areas, what eventually may resulted in dynamic events. Usually in such mines a general geophysical monitoring network is installed for rock mass control. Beside of the latter the local stability of excavations may be controlled with different measurements or special technological operations like rock mass relaxation with blasting techniques or modification of R&P structure and pillars’ shapes and their dimensions. Practical solutions for more or less complicated local displacement measurements, strata separation, fissures development and tele-observations will be demonstrated to listeners, with special emphasis of scale effect analysis. One of the laboratory method which allows to determine the rock proneness to rock bursting will be discussed.

LECTURER: Waldemar Korzeniowski (AGH University of Science and Technology, Poland)

Basic description of eFusion technology as the primary technology necessary to address the challenges associated with clean energy without emissions and nuclear trace, with food safety and self-sufficiency including clean water, with waste management and with the construction of new necessary infrastructure, is defined with more details bellow.

eFusion technology bring significantly cost and time reduction in area of building the special mining works and from this perspective represent one of the key prerequisites for addressing global challenges. It is a innovative technology with potential application in development the way for utilization of deep dry geothermal energy with high energy efficiency, stability and environment friendly attitude. There are also more opportunities to apply such as area of nuclear waste storage, underground construction, oil and gas, raw materials, geology or state food safety and food self-sufficiency and many other.

LECTURER: Karol Horansky (Technology Cluster for Effective Earth Resource Utilization)

Raw materials (RM) are fundamental to Europe’s economy, growth and jobs and they are essential for maintaining and improving our quality of life. One of importance actions of EU is promotion of research and innovation in the area of raw materials exploitation in order to improve economy, sustainability and to decrease environmental impact of mining. Several ideas developed in the framework of this philosophy led to a concept of small intelligent and invisible mines using new innovative technologies that substantially change the feasibility of exploitation. New technologies have potential to allow selective mining of raw materials while lowering the economic costingness. On the other hand, these innovative technologies must comply with standards regarding safety of mining and environmental protection. The main aim of the lecture is to present specificities of small deposits mining, previous methods of small deposits mining, new methods of disintegration of rocks mass, innovative methods of small deposits mining and methodology of selection mining method with regard to the geological conditions of the deposit, safety, economic and environmental aspects.

LECTURER: Marian Šofranko (Technical University of Košice, Slovakia)

A brief description of the ore deposits occurring in Ukraine is presented. The iron-ore deposits of minerals which are extracted by underground mining method are highlighted, with emphasis on two specific deposits with deep mineral formation, and the main part of the lecture is based on these deposits. General information about these deposits and technologies of ore extraction are provided. Companies selected for analysis are as follows: JSC “Kryvyi Rih Iron Ore Integrated Plant” (KRIOIP), Kryvyi Rih, Ukraine, which includes the mines “Ternovska” (shaft depth 1441 m), “Hvardeyska” (shaft depth 1310 m), “Oktyabrska” (shaft depth 1524 m) and “Rodina” (shaft depth 1580 m); PJSC «Zaporozhskiy Iron-Ore Combine», Dniprorudne, Ukraine (ZIOC), which includes mine “Eksplutaatsiyna” (shaft depth 970 m). On the example of these enterprises and their mines, the specific features of mineral deposits occurrence are considered, as well as extraction rate, specific features of the mining method and the rate of development automation. A brief analysis of commonly known features of ore deposits development (mining and geological and technological features, rate of automation) is given and their connection with deposits mentioned above. Mining-geological and technological features of iron ore development are described in detail. We are going consider the rate of automation only in methods of drilling wells involved in the stoping works. In this connection, modern drilling equipment is being used, which is used for the stoping works, globally, and for the specified conditions in particular. Typical specification of drilling work and its constituent elements are considered: wells layout, their quantity, type and consumption of explosive substance, method of well loading and explosion initiating, etc. Special attention is focused on the description of explosion by means of wells ring. Information on blasting operations is provided, including the way the charges are initiated, their structure, charging method and composition of explosives, indicating the economic indexes of these works. We suggest watching a brief video on blasting related to the above mentioned material. Next, we consider ways of selecting and substantiating the mining methods, their parameters, the dependence of the choice of a mining method on the aggregated list of criteria (mining and geological conditions, ore grade, mining depth, etc.). The choice of rational parameters of the ore deposit mining method is considered, and the mining method (drawings and description) that are adopted and used in the ZIOC and KRIOIP are provided. We suggest getting acquainted with the ore grade, depending on the type of minerals, and defining the commercial value of ore deposits (with students), as described above. The index of extraction of ores is taken into account in the total amount of stocks, and brief information on the extraction of related minerals in the development of iron ores is given.

LECTURER: Dmytro Maltsev (Dnipro University of Technology, former National Mining University, Ukraine)

The lecture will give a tour of the Eastern European resource potential, based on the mineral availability of countries in this region. In the current situation, the development of the fuel and energy sector of the countries is not autonomous, but from the perspective of general globalization processes. In fact, with a sufficiently rich supply of energy and mineral resources, many unstable economies are becoming a raw material appendage of more technologically advanced countries. This situation has been observed for many centuries in the Third World countries, when metropolitan used the natural resources of their subordinate territories. Ukraine, of course, is not a representative of the Third World, but has rather high potential to become a serious player in the fuel and energy sector in the European market. This perspective is reasonably well-founded. The Post-Soviet heritage and the orientation to the domestic market of the former Soviet Union countries has been and still is a significant deterrent to the European-wide integration of our state. In this lecture the prospects of joining to the EU fuel and energy community are considered on an example of Ukraine. The basic reserves of minerals are considered and analytical calculations concerning the establishment of their numbers are given taking into account the increase in the depth of mineral mining. Moreover, the risks and threats arising from the displacement the mining operations to deeper horizons are analyzed. Examples of technologies for the exploring of deep mineral deposits are given, taking into account the economic and environmental saving components. Various variants of the situation development in Ukraine and perspective of East European Mining are presented. Special attention is paid to the political situation in this country and the stability of the situation in this region.

LECTURER: Roman Dychkovskyi (Dnipro University of Technology, former National Mining University, Ukraine)

Predicting the rock behaviour and ground control are the main challenges related to mining and underground constructing. Rock properties should be studied carefully to predict the rocks behaviour and estimate the openings stability. Because of the rock mass heterogeneity there is a dissimilarity in the strength of the real rock mass and a rock specimen. This dissimilarity is confirmed by many experimental results and called the scale effect in rocks. The lecture aims to represent the quantitative indicator of the scale effect called a structural factor. A technique based on statistical data processing will be given to consider the rock heterogeneity on a micro level and the effect of macrodefects, such as joints, will be evaluated as well. Failure criteria applied in geomechanics will be discussed and involving the structural factor to reduce the intact rock strength will be demonstrated. Comparison with the Hoek-Brown classification based on Geological Strength Index will be accomplished while the Western Donbass case study. Particular case of excavating through the fault zones will be discussed in the lesson and the role of the structural factor and strength reduction will be shown while designing the support of an excavation in terms of weak and watered rocks.

LECTURER: Olena Sdvyzhkova (Dnipro University of Technology, former National Mining University, Ukraine)

Mining of ore in an underground environment is a challenge in itself, but with a steadily increasing depths the resulting problems becoming even more evident. The Mittersill Mine in the Austrian Alps is working in a mineralized zone that is dipping underneath a 2800 m high mountain. Mining close to the outcrop was a problem of the early years, but by now the mine works in great depths with more than 1000 m of rock on top. This results in higher rock pressure, and corresponding temperatures, longer haulage distances for the ore as well as for all the material and people. Discharge water must be lifted a greater height, and ventilation is getting more complex. Don’t forget that even exploration drilling is getting more difficult and expensive with greater depth as well. For all those problems, there are solutions, but they better be smart and tackled early to keep the mining cost low.

LECTURER: Felix Gaul (Wolfram Bergbau und Hütten AG, Austria)

The new occupational exposure limit values (OELs) law will be released in 4 years. Mining companies are facing an increasing challenge to think long term to maintain the new OELs. In 2 years in Germany all actions taken and the achieved results will be checked by authorities. The danger from toxic gases in underground operations is on the one hand related to the type of source (blasting, emissions from vehicles) and on the other side on the quality of ventilation. The creation of NOx is a result of the burning process (explosives & vehicles) depending on the raw material used. Therefore, further investigations have been conducted, to evaluate the impact of different kind of sources to avoid excessive creation of NOx in underground mines. Three blasting programs have been carried out in different underground mining operations in Germany, where all types of civil explosives which are being used today were evaluated. More than 40,000 data points were collected and processed. The results of this study will be presents and discussed.

LECTURER: Mark Ganster (Austin Powder – Austria)

A risk is defined as a result of the probability of the accident occurring and the expected loss or negative consequence in case of an accident. Following an energetic approach of risks (Dangerous situations are characterized by harmful energies) it is clear, the more energy – the more negative consequences. Following a dynamic approach (meaning: the space of time in which the energies are released) there are rapid dangers (rock burst, rock fall) and slow dangers (e.g.: slow failing of roof support) to see.

  • Risk Management – Occupational Health & Safety (direction people based safety – safety culture)
  • Risk Management – Process Safety in Mining (direction risk control by engineering)
  • Critical Behaviour: Strata Control versus Market Needs
  • Critical Zones in a Mine (residual pillars, residual roofs, change of geology)
  • Risk Management in Crisis Management (loss of control & stress management , handling of unexpected targets)

LECTURER: Alfred Maier (Montanuniversität Leoben, Austria)

The European Directive on waste from extractive industries (2006/21/EC) provides the basic concept for sustainable management of such waste in the EU. Mine water is one of the waste types within the scope of this Directive; it significantly affects ground and surface water quality and should be properly managed. The lecture addresses basic hydrogeological and engineering issues related to mine water as well as best available practices to mitigate its environmental impact. The offered material is subdivided into five sections. The first one focuses on mine water origins, mine drainage and dewatering. The second section covers water pollution caused by mining operations, drainage and discharge. The pollutants contained in mine water including acids, heavy metals, and PCBs are reviewed. The third section deals with mine closure and problems caused by mine water level rebound, discharge into containment ponds and surface water bodies. The fourth section reviews the methods of underground hydraulics to calculate water balance, the mine water level, and drainage parameters. The last section focuses on Environment Impact Assessment for active and closed mines and appropriate best engineering practices. The lecture contains case studies from EU member-countries and Ukraine with demonstration of mine water management.

LECTURER: Dmytro Rudakov (Dnipro University of Technology, former National Mining University, Ukraine)

Coming soon…

LECTURER: Mladen Pađen (DOK-ING, Croatia)