TY  - JOUR
AU  - Elekes, Tibor
AU  - Gyenizse, Péter
TI  - The historical Szekely Land and its present-day spatial division
JF  - REGIONAL STATISTICS
J2  - REG STAT
PY  - 2024
PG  - 9
SN  - 2063-9538
DO  - 10.15196/RS140208
UR  - https://m2.mtmt.hu/api/publication/34833096
ID  - 34833096
LA  - English
DB  - MTMT
ER  - 

TY  - CONF
AU  - Lovász, Virág
AU  - Halmai, Ákos
ED  - Kovács, Bettina
ED  - Glázer-Kniesz, Adrienn
ED  - Tislér, Ádám
TI  - Long Short - Term Memory in use of eliminating geometric distortions in side-scan sonar imaging
T2  - Absztraktkötet: XII. Interdiszciplináris Doktorandusz Konferencia = Book of Abstract: XII. Interdisciplinary Doctoral Conference
PB  - Pécsi Tudományegyetem Doktorandusz Önkormányzat
C1  - Pécs
SN  - 9789636262457
PY  - 2024
SP  - 125
EP  - 125
PG  - 1
UR  - https://m2.mtmt.hu/api/publication/34831544
ID  - 34831544
LA  - English
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Kovács, István Péter
AU  - Ronczyk, Levente
AU  - Adorján, Erik
AU  - Keszthelyi, Ádám
AU  - Kovács, Dániel Márton
AU  - Orbán, Zoltán
AU  - Kertész, Botond
TI  - A műholdradar-interferometria alkalmazásának lehetőségei a kőbányászati szektorban. InSAR applications for quarry monitoring
TS  - InSAR applications for quarry monitoring
JF  - BÁNYÁSZATI ÉS KOHÁSZATI LAPOK (2023-)
J2  - BKL
VL  - 157
PY  - 2024
IS  - 1
SP  - 12
EP  - 21
PG  - 10
SN  - 2498-9322
UR  - https://m2.mtmt.hu/api/publication/34781563
ID  - 34781563
LA  - Hungarian
DB  - MTMT
ER  - 

TY  - ART
AU  - Halmai, Ákos
TI  - Example code for "Paul Bourke, 1998: Determining whether or not a polygon (2D) has its vertices ordered clockwise or counter-clockwise".
PY  - 2023
UR  - https://m2.mtmt.hu/api/publication/34571802
ID  - 34571802
N1  - https://paulbourke.net/geometry/polygonmesh/AreaClockwiseConcave.txt
https://paulbourke.net/geometry/polygonmesh
AB  - # Ákos Halmai, 2023.
import math


def getArea(points) -> float:
    """Expects iterable of two-element-tuples.
    For example:
    points = ((0, 0), (1, 0), (1, 1), (0, 1), (0, 0))"""

    area = 0.0
    (x1, y1) = points[0]
    for (x2, y2) in points[1:]:
        area += x1 * y2 - y1 * x2
        (x1, y1) = (x2, y2)

    return 0.5 * area


def getAreaAbs(points) -> float:
    """Expects iterable of two-element-tuples.
    For example:
    points = ((0, 0), (1, 0), (1, 1), (0, 1), (0, 0))"""

    # Returns float (always):
    return math.fabs(getArea(points))


def getAreaPrecise(points) -> float:
    """Expects iterable of two-element-tuples.
    For example:
    points = ((0, 0), (1, 0), (1, 1), (0, 1), (0, 0))"""

    def getPartArea(points):
        (x1, y1) = points[0]
        for (x2, y2) in points[1:]:
            yield x1 * y2
            yield -y1 * x2
            (x1, y1) = (x2, y2)

    # Avoids loss of precision by tracking multiple
    # intermediate partial sums:
    return 0.5 * math.fsum(getPartArea(points))


def getAreaPreciseAbs(points) -> float:
    """Expects iterable of two-element-tuples.
    For example:
    points = ((0, 0), (1, 0), (1, 1), (0, 1), (0, 0))"""

    # Returns float (always):
    return math.fabs(getAreaPrecise(points))


def __isClockwise(*args) -> bool:
    """Private. Do not use it!"""

    (x0, y0), (x1, y1), (x2, y2), *_ = args
    return ((x1 - x0) * (y2 - y1) - (y1 - y0) * (x2 - x1)) > 0.0


def isClockwise(points) -> bool:
    """Expects iterable of two-element-tuples.
    For example:
    points = ((0, 0), (1, 0), (1, 1), (0, 1), (0, 0))"""

    return __isClockwise(*points)


def isConcave(points) -> bool:
    """Expects iterable of two-element-tuples.
    For example:
    points = ((0, 0), (1, 0), (1, 1), (0, 1), (0, 0))"""

    (x0, y0), (x1, y1), (x2, y2), *_ = points
    switch = __isClockwise((x0, y0), (x1, y1), (x2, y2))
    for (xn, yn) in points[3:]:

        if switch != __isClockwise((x1, y1), (x2, y2), (xn, yn)):
            return True

        # Delayed for performance:
        ((x0, y0), (x1, y1), (x2, y2)) = ((x1, y1), (x2, y2), (xn, yn))

    return False
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Víg, Balázs
AU  - Varga, Gábor
AU  - Balogh, Richárd
AU  - Lóczy, Dénes
AU  - Nagyváradi, László
AU  - Fábián, Szabolcs Ákos
TI  - Channel-reach morphometric analysis on a headwater stream in a low-mountainous region: a case study from Mecsek Hills
JF  - HUNGARIAN GEOGRAPHICAL BULLETIN (2009-)
J2  - HUNG GEOGR BULL (2009-)
VL  - 72
PY  - 2023
IS  - 4
SP  - 365
EP  - 381
PG  - 17
SN  - 2064-5031
DO  - 10.15201/hungeobull.72.4.3
UR  - https://m2.mtmt.hu/api/publication/34500547
ID  - 34500547
AB  - Small catchments in mountainous regions affect downstream rivers as a primary source of sediment supply and also generate flash swasfloods, especially during extreme events. These floods have significantly shaped the catchments of small streams in the Mecsek Hills and some rural areas over the past two decades. However, there has been no previous study examining the hydromorphology of headwater catchments in low mountain environments in Hungary. The present study was meant to investigate the fundamental hydrogeomorphological properties of a first-order catchment. A customary and detailed GIS survey of 50-metre sections was aimed at deciphering flash flood vulnerability and geomorphic interrelations within a micro watershed. We found moderate susceptibility to flash floods compared to the whole Mecsek Hills. Stable large woody debris jams were identified during the field survey as major geomorphic channel features functioning as natural barriers which drive channel evolution and reduce flood hazards.
LA  - English
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Pap, Norbert
AU  - Fodor, Pál
AU  - Kitanics, Máté
AU  - Gyenizse, Péter
AU  - Hancz, Erika
TI  - Historical and archaeological data for integrated environmental historical analyses on the moat profile of the türbe complex of Sultan Suleiman I at Szigetvár - Turbék Wineyard Hill site (Hungary)
JF  - ARCHEOMETRIAI MŰHELY
J2  - ARCHEOMETRIAI MŰHELY
VL  - 20
PY  - 2023
IS  - 3
SP  - 195
EP  - 200
PG  - 6
SN  - 1786-271X
DO  - 10.55023/issn.1786-271X.2023-016
UR  - https://m2.mtmt.hu/api/publication/34445353
ID  - 34445353
AB  - Sultan Suleiman I the Magnificent (1526–1566) died during the siege of Szigetvár in 1566 (between 1 and 2 a.m. on 7th September 1566) in his imperial tent 4.5 kilometers from the castle, on the vineyard hill of Szigetvár – Turbék, Hungary. Later, around 1575 a makam türbe (memorial mausoleum) with a mosque and a dervish lodge was built on the place of his death; the complex was protected by a palisade and surrounded by a deep moat. The layout of the complex was drawn by Count Pál Esterházy (1635–1713) (later palatine and imperial prince) in 1664, during the Winter Campaign. Part of the memorial site and the adjoining small town (Turkish name: Türbe kasabası) burnt down in 1688, most of the buildings were removed by 1691, and by 1693 only the remains of the mausoleum’s wall were left standing, which were soon pulled down. Later the area was used for agricultural purposes, with fields, orchards, gardens, and vineyards. The türbe and other associated buildings were covered with a layer of rubble from the demolition and soil. The significant site was identified in 2014 and was excavated by remote sensing, geophysical, geological, and archaeological investigations between 2015 and 2019.
LA  - English
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Ali, Z.F.
AU  - Khoshnaw, Dedar Salam Ahmad
AU  - Pirisi, Gábor
AU  - Kiss, Kinga
TI  - Assessment of air quality and consequent in Erbil, Iraqi Kurdistan region based GEE, GIS, and remote sensing techniques
JF  - E3S WEB OF CONFERENCES
J2  - E3S WEB CONF
VL  - 436
PY  - 2023
SN  - 2555-0403
DO  - 10.1051/e3sconf/202343610007
UR  - https://m2.mtmt.hu/api/publication/34441365
ID  - 34441365
N1  - Doctoral School of Earth Sciences, University of Pécs, Ifjúság Str 6, Pécs, H-7624, Hungary            
            Department of Geography, Faculty of Education, Koya University, Kurdistan Region, Iraq            
            Marcel, Breuer Doctoral School, University of Pécs, Boszorkány u. 2, Pecs, 7624, Hungary            
            Department, of Architectural Engineering, Faculty of Engineering, Koya University, Kurdistan Region, Erbil, Iraq            
            Department of Social Geography and Urban Planning, University of Pecs, Pecs, Hungary            
            Department of Cartography and Geoinformatics, University of Pecs, Pecs, Hungary            
            Export Date: 18 December 2023; Cited By: 0; Correspondence Address: Z.F. Ali; Doctoral School of Earth Sciences, University of Pécs, Pécs, Ifjúság Str 6, H-7624, Hungary; email: zana.ali@koyauniversity.org; Conference name: 4th International Conference on Environmental Design, ICED2023; Conference date: 20 October 2023 through 22 October 2023; Conference code: 193752
AB  - The global peril of air quality deterioration imperils the well-being of all living beings. Erbil, like many other regions, has suffered severe environmental degradation due to urban expansion, vehicular escalation, industrialisation, and substandard fuel usage. This research employs Google Earth Engine, GIS, and Remote Sensing to scrutinise alterations in pollutants (NO2, SO2, CH4, CO, O3, UV) spanning 2018 to 2022. It also incorporates PM2.5 data from Ankawa station (Jan 14, 2023 - May 4, 2023) and land use data (2005-2022) from Modis and Sentinel 2 satellites. The findings reveal a substantial increase in the levels of various pollutants during the specified period. However, in June 2020, most of these levels experienced a decrease due to the coronavirus quarantine measures. For instance, the concentration of NO2 decreased from 0.000256 mol/m2 in 2018 to 0.000166 mol/m2 in 2020. Conversely, by June 2022, the levels had significantly risen to 0.000277 mol/m2. Moreover, among the 107 days record, PM2.5 concentrations reached unhealthy levels on 44 days, while only five exhibited healthy PM2.5 levels. Furthermore, regions at lower sea levels, like Erbil and Khabat, exhibit the highest concentrations of these gases. In contrast, areas at higher sea levels, such as Mergasur and Choman, demonstrate these pollutants’ lowest levels. © 2023 EDP Sciences. All rights reserved.
LA  - English
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Laksono, Fx Anjar Tri
AU  - Borzi, Laura
AU  - Distefano, Salvatore
AU  - Czirok, Lili
AU  - Halmai, Ákos
AU  - Di Stefano, Agata
AU  - Kovács, János
TI  - Shoreline change dynamics along the Augusta coast, eastern Sicily, South Italy
JF  - EARTH SURFACE PROCESSES AND LANDFORMS
J2  - EARTH SURF PROCESS LANDF
VL  - 48
PY  - 2023
IS  - 9
SP  - 1
EP  - 12
PG  - 12
SN  - 0197-9337
DO  - 10.1002/esp.5644
UR  - https://m2.mtmt.hu/api/publication/34034637
ID  - 34034637
N1  - Funding Agency and Grant Number: Uj Nemzeti Kivalosag Program (UNKP) [UNKP-22-3-1]
            Funding text: Uj Nemzeti Kivalosag Program (UNKP), Grant/Award Number: UNKP-22-3-1
LA  - English
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Orbán, Zoltán
AU  - Dormány, András
AU  - Kovács, Dániel Márton
TI  - Állapotmonitoring roncsolásmentes diagnosztika és műholdradar alapú mérések alkalmazásával
JF  - HÍDÉPÍTŐK
J2  - HÍDÉPÍTŐK
VL  - 50
PY  - 2023
IS  - 1
SP  - 42
EP  - 47
PG  - 6
UR  - https://m2.mtmt.hu/api/publication/33793773
ID  - 33793773
LA  - Hungarian
DB  - MTMT
ER  - 

TY  - JOUR
AU  - Lovász, Virág
AU  - Halász, Amadé
AU  - Molnár, Péter
AU  - Karsa, Róbert
AU  - Halmai, Ákos
TI  - Application of a CNN to the Boda Claystone Formation for high-level radioactive waste disposal
JF  - SCIENTIFIC REPORTS
J2  - SCI REP
VL  - 13
PY  - 2023
IS  - 1
PG  - 16
SN  - 2045-2322
DO  - 10.1038/s41598-023-31564-1
UR  - https://m2.mtmt.hu/api/publication/33733477
ID  - 33733477
N1  - Funding Agency and Grant Number: University of Pecs
            Funding text: The Public Limited Company for Radioactive Waste Management (PURAM) greatly assisted our work by providing us with core scanning logs, scanned cores, internal reports, and core documentation. Every figure and table presented in this article is based on PURAM data. We thank them for their support. We are grateful to Dr. Gyula Konrad for proofreading. We also thank Dr. Denes Loczy for improving the quality of our English translation. We thank the Doctoral School of Earth Sciences (University of Pecs) for providing the computational power necessary for the research. Open access funding was provided by the University of Pecs. Every figure was created in ArcGIS Pro (ver.: 2.8.4; Environmental System Research Inc., Redlands, CA, USA).Open access funding was provided by University of Pecs
AB  - Nations relying on nuclear power generation face great responsibilities when designing their firmly secured final repositories. In Hungary, the potential host rock [the Boda Claystone Formation (BCF)] of the deep geological repository is under extensive examination. To promote a deeper comprehension of potential radioactive isotope transport and ultimately synthesis for site evaluation purposes, we have efficiently tailored geospatial image processing using a convolutional neural network (CNN). We customized the CNN according to the intricate nature of the fracture geometries in the BCF, enabling the recognition process to be particularly sensitive to details and to interpret them in the correct tectonic context. Furthermore, we set the highest processing scale standards to measure the performance of our model, and the testing circumstances intentionally involved various technological and geological hindrances. Our presented model reached ~ 0.85 precision, ~ 0.89 recall, an ~ 0.87 F1 score, and a ~ 2° mean error regarding dip value extraction. With the combination of a CNN and geospatial methodology, we present the description, performance, and limits of a fully automated workflow for extracting BCF fractures and their dipping data from scanned cores.
LA  - English
DB  - MTMT
ER  -