@inproceedings{MTMT:30839962, title = {Fusion Markov Random Field Image Segmentation for a Time Series of Remote Sensed Images}, url = {https://m2.mtmt.hu/api/publication/30839962}, author = {Szirányi, Tamás and Kriston, András and Majdik, András and Tizedes, László}, booktitle = {Progress in Industrial Mathematics at ECMI 2018}, doi = {10.1007/978-3-030-27550-1_79}, unique-id = {30839962}, year = {2019}, pages = {621-629}, orcid-numbers = {Szirányi, Tamás/0000-0003-2989-0214; Majdik, András/0000-0003-1807-2865} } @CONFERENCE{MTMT:30762083, title = {Observation of local Wetland areas from Satellite Imaging. An European Space Agency project}, url = {https://m2.mtmt.hu/api/publication/30762083}, author = {Manno-Kovács, Andrea and Kriston, András and Zlinkszky, A and Domokos, Gy and Szirányi, Tamás}, booktitle = {Képfeldolgozók és Alakfelismerők Társaságának 12. Országos Konferenciája}, unique-id = {30762083}, year = {2019}, pages = {1-10}, orcid-numbers = {Manno-Kovács, Andrea/0000-0002-9392-379X; Szirányi, Tamás/0000-0003-2989-0214} } @CONFERENCE{MTMT:30762081, title = {Fusion Markov Random Field Image Segmentation for a Time Series of Remote Sensed Images}, url = {https://m2.mtmt.hu/api/publication/30762081}, author = {Szirányi, Tamás and Kriston, András and Csilling, Tamás and Majdik, András and Tizedes, László}, booktitle = {Képfeldolgozók és Alakfelismerők Társaságának 12. Országos Konferenciája}, unique-id = {30762081}, year = {2019}, pages = {1-12}, orcid-numbers = {Szirányi, Tamás/0000-0003-2989-0214; Majdik, András/0000-0003-1807-2865} } @inproceedings{MTMT:30385910, title = {Segmentation of Multiple Organs in Computed Tomography and Magnetic Resonance Imaging Measurements}, url = {https://m2.mtmt.hu/api/publication/30385910}, author = {Kriston, András and Czipczer, Vanda and Manno-Kovács, Andrea and Kovács, Levente Attila and Benedek, Csaba and Szirányi, Tamás}, booktitle = {Proceedings of 4th International Interdisciplinary 3D Conference}, unique-id = {30385910}, year = {2018}, pages = {51-56}, orcid-numbers = {Manno-Kovács, Andrea/0000-0002-9392-379X; Kovács, Levente Attila/0000-0001-7792-4947; Benedek, Csaba/0000-0003-3203-0741; Szirányi, Tamás/0000-0003-2989-0214} } @article{MTMT:3254987, title = {Role of rubber stiffness and surface roughness in the tribological performance on ice}, url = {https://m2.mtmt.hu/api/publication/3254987}, author = {Isitman, Nihat A and Kriston, András and Fülöp, Tibor}, doi = {10.1080/10402004.2017.1319002}, journal-iso = {TRIBOL T}, journal = {TRIBOLOGY TRANSACTIONS}, volume = {61}, unique-id = {3254987}, issn = {1040-2004}, abstract = {The aim of this work is to investigate the effect of slider surface roughness and stiffness on the friction between rubber compounds and ice surfaces in order to provide insight into rubber–ice friction generation mechanisms. For this purpose, rubber compounds were designed to have different levels of macroscopic roughness and cured stiffness by modifying the filler system and plasticizer loading. In order to accurately evaluate the effects of surface and bulk rubber property on ice friction, linear friction tests were performed on laboratory ice with varied frictional heat buildup by modifying the friction test protocol. The results showed that the friction force was in general increased through the ploughing effect of a rough rubber block sliding on smooth ice. The increase in friction by ploughing was more pronounced when the contacting rubber block had sufficiently low stiffness and when the accumulation of frictional heat on ice was sufficiently high. It was also evidenced that a sufficiently hard rubber with test conditions leading to low heat buildup on ice could nevertheless lead to an opposite influence of roughness on rubber–ice friction; that is, lower friction force with a slider with a higher roughness.}, year = {2018}, eissn = {1547-397X}, pages = {295-303} } @article{MTMT:3254984, title = {Multiscale physics of rubber-ice friction}, url = {https://m2.mtmt.hu/api/publication/3254984}, author = {Tuononen, Ari J and Kriston, András and Persson, Bo}, doi = {10.1063/1.4962576}, journal-iso = {J CHEM PHYS}, journal = {JOURNAL OF CHEMICAL PHYSICS}, volume = {145}, unique-id = {3254984}, issn = {0021-9606}, abstract = {Ice friction plays an important role in many engineering applications, e.g., tires on icy roads, ice breaker ship motion, or winter sports equipment. Although numerous experiments have already been performed to understand the effect of various conditions on ice friction, to reveal the fundamental frictional mechanisms is still a challenging task. This study uses in situ white light interferometry to analyze ice surface topography during linear friction testing with a rubber slider. The method helps to provide an understanding of the link between changes in the surface topography and the friction coefficient through direct visualization and quantitative measurement of the morphologies of the ice surface at different length scales. Besides surface polishing and scratching, it was found that ice melts locally even after one sweep showing the refrozen droplets. A multi-scale rubber friction theory was also applied to study the contribution of viscoelasticity to the total friction coefficient, which showed a significant level with respect to the smoothness of the ice; furthermore, the theory also confirmed the possibility of local ice melting.}, year = {2016}, eissn = {1089-7690} } @article{MTMT:3254983, title = {A novel method for contact analysis of rubber and various surfaces using micro-computerized-tomography}, url = {https://m2.mtmt.hu/api/publication/3254983}, author = {Kriston, András and Fülöp, Tibor and Isitman, Nihat Ali and Kotecký, Ondřej and Tuononen, Ari J}, doi = {10.1016/j.polymertesting.2016.05.019}, journal-iso = {POLYM TEST}, journal = {POLYMER TESTING}, volume = {53}, unique-id = {3254983}, issn = {0142-9418}, abstract = {The experimental analysis of the contact state in a tribosystem is of great importance in the study of contact mechanics. In order to make a realistic analysis on the micro scale, it is desirable to keep the tribosystem unperturbed, i.e., without any surface treatment or incorporation of a third body to facilitate the analysis. This study presents the use of a novel technique, micro-computerized tomography (micro-CT), in the investigation of contact between rubber compounds and various counter-surfaces. The goal of this study was to further advance the use of micro-CT in contact mechanics. Specific image analysis techniques were developed in order to process micro-CT images of contact pairs formed by rubber compounds of different hardness levels against counter-surfaces with varying surface roughness and mechanical properties. The micro-CT method has been shown to allow the direct visualization and precise quantification of the real area of contact without altering the original characteristics of the contact pair.}, year = {2016}, eissn = {1873-2348}, pages = {132-142} } @article{MTMT:3254971, title = {Structural evolution and wear of ice surface during rubber-ice contact}, url = {https://m2.mtmt.hu/api/publication/3254971}, author = {Kriston, András and Isitman, Nihat Ali and Fulop, Tibor and Tuononen, Ari J}, doi = {10.1016/j.triboint.2015.09.020}, journal-iso = {TRIBOL INT}, journal = {TRIBOLOGY INTERNATIONAL}, volume = {93}, unique-id = {3254971}, issn = {0301-679X}, abstract = {This study investigates different possible contact mechanisms of rubber–ice sliding friction using in-situ and ex-situ ice microscopy at test temperatures below melting point. Several frictional processes were identified based on the evolution of ice surface morphology. The nature of rubber–ice contact is significantly different for softer and stiffer rubber compounds. For softer compounds the ice microstructure evolves through frost rounding/removal, surface scratching by hard filler plowing, and shearing of quasi-liquid layer by capillary drag. Cold recrystallization and local melting/refreezing of ice was not found to occur owing to homogenous pressure distribution. For stiffer compounds, the pressure distribution is uneven and contact is more localized, resulting in enhanced local deformation features such as subgrain boundaries, visible etch pits and large- scale melting/refreezing.}, year = {2016}, eissn = {1879-2464}, pages = {257-268} }