The subject of the technological improvement is software that enables forecasting of thermal rating of power lines, based on operational and weather conditions. The core of the software is a physical model which takes into consideration heat generation inside the conductor and heat exchange with the surroundings in terms of convection, radiation, water evaporation, rain impinging, solar heating and friction between air and the conductor. The software is modular and can be used as a standalone program via web interface with the option to use meteorological data, or as a building block of SUMO system. The software is a product of past theoretical studies of temperature conditions on power lines carried out for the transmission system operator ELES as well as research conducted during technology transfer as part of the TETRACOM FP 7 project. The implemented software package has achieved high reliability and industrial level of use, thus representing a product that can be marketed in an international level. In 2018, the software was integrated in the DiTeR package, which was selected by ELES for operational software that will be from 2019 in use in the Slovenian transmission system. The DiTeR package was sold for 200 000 €.
F.06 Development of a new product
COBISS.SI-ID: 31728423This book is an overview of practical parallel computing with basic principles and rules for designing efficient parallel programs on the state-of-the-art computing platforms, exposed in three parts: Foundations, which provides the motivation and techniques for usage in parallel computing, Programming, which discusses shared and distributed memory computing architectures, and Engineering, which illustrates parallel solutions of three selected problems: computing number Pi, solving heat equation and seam carving in video processing. The spectrum of book topics ranges from basic theory to implementations and efficient applications of parallel computers. The book covers shared memory many-core processors, shared memory multi-core processors, and interconnected distributed computers. The target audience comprises undergraduate and graduate students, engineers, programmers and industrial experts acting in companies that develop software with an intention to add parallel capabilities for increased performance, research institutions that develop and test computationally intensive software with parallel software codes, and universities and educational institutions that teach courses on parallel computing. The book is interesting and useful also for the wider public, in the part where basic principles and benefits of parallel approaches are presented, which could classify it as a monography.
D.10 Educational activities
COBISS.SI-ID: 1537870275In 2018 we completed the RD project »Cooling of overhead power lines in wind regimes below 0.6 m/s«, which was carried out in cooperation with Elektroinštitut Milan Vidmar for the client ELES. In the project we analysed the heat transfer from the heated transmission lines in the weak wind regimes. There are non-matching recommendations for thermal ratings in this regime. Through detailed numerical calculations and measurements we uniquely showed how this regime should be considered, thereby increasing confidence in numerical calculations of the thermal load of the conductors. All the simulations were carried out with our original solution procedures.
D.01 Chairing over/coordinating (international and national) projects
COBISS.SI-ID: 31829287Janez Perš has been a member of the editorial board of International journal of distributed sensor networks since the year 2014, with JCR impact factor of IF=1.787 (2017). The impact factor of the journal tripled in that time frame, the journal is currently in Q2. The journal scope are distributed sensor networks, including distributed camera networks.
C.04 Editorial board of an international magazine
Medicine is becoming increasingly dependent on information and communication technologies, in particular to improve the quality of life, actively involve patients in treatment and rehabilitation, and reduce the cost of health care. The University of Ljubljana, the Faculty of Medicine, University Medical Centre Ljubljana (UMCL) and the Jožef Stefan Institute have established a working group for Smart Specialization in Electronic and Mobile Healthcare (EMZ), where our group has one of the leading roles. The objectives of the EMZ program are to reduce the cost of health care by 10%, to contribute to 2% of GDP growth, 5.000 new quality jobs and faster, better and more equitable healthcare for all citizens. Together with doctors of family medicine at Community Health Centre Ljubljana (CHCL), which has more than 400.000 registered patients, we obtained measurements from more than 300 volunteers at the primary healthcare level with the new ECG body sensor, which enables long-term measurements - several weeks or months. On the basis of the results obtained, we have jointly designed a screening protocol for patients with heart rhythm disorders. We proposed new methods for better detection and treatment of patients with atrial fibrillation, which are potentially more susceptible to stroke. The proposed methods were tested in two medical pilot studies with 250 participants anticipated. In addition to CHCL and UMCL, the Nüremberg Cardio Clinic also participates in the pilot.
F.04 Increase of the technological level
COBISS.SI-ID: 31846951