Institution
University of Rijeka
Education•Rijeka, Croatia•
About: University of Rijeka is a education organization based out in Rijeka, Croatia. It is known for research contribution in the topics: Population & Tourism. The organization has 3471 authors who have published 7993 publications receiving 110386 citations. The organization is also known as: Rijeka University & Sveučilište u Rijeci.
Papers published on a yearly basis
Papers
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TL;DR: A new index describing the total harmonic distortion in current measurements, total rated distortion (TRD), is suggested in order to simplify and standardize harmonic current measurements and another index representing the increase of harmonic voltage distortion with TRD, equivalent harmonic impedance zeq, is proposed.
Abstract: Among the different power quality parameters, the voltage total harmonic distortion is important and is often studied. Different indices have previously been suggested to measure and monitor both the current and the voltage distortion in power systems, but the harmonic characterization of a power system can still not be performed in a satisfactory way. The state of the harmonic distortion is difficult to predict due to the variability and a large number of unknowns, such as detailed consumer and system characteristics. In this paper, a new index that describes the total harmonic distortion in the current measurements, i.e., the total rated distortion (TRD), is suggested to simplify and standardize the harmonic current measurements. Another index that represents the increase of the harmonic voltage distortion with TRD, i.e., the equivalent harmonic impedance z eq, is proposed as an efficient way of characterizing a particular site. It is analyzed when z eq is increased or decreased with regard to the angle between the harmonic voltages and currents. Finally, extensive harmonic measurements of a real distribution system were performed to prove the usefulness of the proposed indices.
34 citations
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Chungbuk National University1, University of Warsaw2, Osaka University3, Ohio State University4, University of Salerno5, University of St Andrews6, University of Toulouse7, University of Concepción8, University of Cambridge9, Nagoya University10, University of Notre Dame11, Massey University12, University of Auckland13, Victoria University of Wellington14, Vaughn College of Aeronautics and Technology15, European Southern Observatory16, Max Planck Society17, Liverpool John Moores University18, Las Cumbres Observatory Global Telescope Network19, Qatar Foundation20, Ames Research Center21, University of Göttingen22, Chinese Academy of Sciences23, Aarhus University24, University of Copenhagen25, Korea Astronomy and Space Science Institute26, Technical University of Denmark27, University of Manchester28, Sharif University of Technology29, Keele University30, Heidelberg University31, National Institute for Space Research32, Texas A&M University33, Princeton University34, Auckland University of Technology35, University of Canterbury36, Institut d'Astrophysique de Paris37, University of Tasmania38, University of Rijeka39, Vienna University of Technology40, Space Telescope Science Institute41
TL;DR: In this article, a case of central perturbations for which it is difficult to distinguish the planetary and binary interpretations is presented, where the peak of a lensing light curve affected by this perturbation appears to be blunt and flat.
Abstract: High-magnification microlensing events provide an important channel to detect planets. Perturbations near the peak of a high-magnification event can be produced either by a planet or a binary companion. It is known that central perturbations induced by both types of companions can be generally distinguished due to the essentially different magnification pattern around caustics. In this paper, we present a case of central perturbations for which it is difficult to distinguish the planetary and binary interpretations. The peak of a lensing light curve affected by this perturbation appears to be blunt and flat. For a planetary case, this perturbation occurs when the source trajectory passes the negative perturbation region behind the back end of an arrowhead-shaped central caustic. For a binary case, a similar perturbation occurs for a source trajectory passing through the negative perturbation region between two cusps of an astroid-shaped caustic. We demonstrate the degeneracy for two high-magnification events of OGLE-2011-BLG-0526 and OGLE-2011-BLG-0950/MOA-2011-BLG-336. For OGLE-2011-BLG-0526, the χ2 difference between the planetary and binary model is ~3, implying that the degeneracy is very severe. For OGLE-2011-BLG-0950/MOA-2011-BLG-336, the stellar binary model is formally excluded with Δχ2 ~ 105 and the planetary model is preferred. However, it is difficult to claim a planet discovery because systematic residuals of data from the planetary model are larger than the difference between the planetary and binary models. Considering that two events observed during a single season suffer from such a degeneracy, it is expected that central perturbations experiencing this type of degeneracy is common.
34 citations
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TL;DR: In this paper , the viability of different fuel cell types in a ship power system, where hydrogen and ammonia are considered as zero-carbon fuels, was investigated by taking into account the environmental and economic indicators of the considered power systems.
34 citations
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TL;DR: Oleanolic acid (OA) is a natural triterpenoid that possesses numerous beneficial health effects such as antioxidant, anti-inflammatory and anti-apoptotic activities as mentioned in this paper.
34 citations
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TL;DR: In this article, two nearby areas with different karstic landscapes were compared and the role of fluvial erosion in the shaping of karst was discussed, where the authors attributed the recent morphology of the Palaeogene impermeable marly cover, and the intensity of tectonics in the two areas.
34 citations
Authors
Showing all 3537 results
Name | H-index | Papers | Citations |
---|---|---|---|
Igor Rudan | 142 | 658 | 103659 |
Nikola Godinovic | 138 | 1469 | 100018 |
Ivica Puljak | 134 | 1436 | 97548 |
Damir Lelas | 133 | 1354 | 93354 |
D. Mekterovic | 110 | 449 | 46779 |
Ulrich H. Koszinowski | 96 | 281 | 27709 |
Michele Doro | 79 | 437 | 20090 |
Robert Zivadinov | 73 | 522 | 18636 |
D. Dominis Prester | 70 | 363 | 16701 |
Daniel Ferenc | 70 | 225 | 16145 |
Vladimir Parpura | 64 | 226 | 18050 |
Stipan Jonjić | 62 | 227 | 19363 |
Dario Hrupec | 60 | 288 | 13345 |
Alessandro Laviano | 59 | 298 | 14609 |
Tomislav Terzić | 58 | 271 | 10699 |