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Title Predicting Earth-Vas2 parameters of coastal plain sand aquifers using artificial neural Network(s), in the Calabar region of Nigeria Author info Emmanuel I. Akaerue ... [et al.] Author Akaerue Emmanuel I. (35%)
Co-authors Onwuka Obialo S.
George Anthony M.
Ekwok Stephen Eguba
Alarifi Saad S.
Andráš Peter 1953- (30%) UMBFP01 - Katedra geografie a geológie
Eldosouky Ahmed M.
Source document Journal of African Earth Sciences. No. 209 (2024), pp. 1-12. - Oxford : Elsevier Ltd., 2024 Keywords hydrogeológia - hydrogeology korelačné koeficienty Headings Geogr. Nigéria Language English Country Great Britian Annotation This study employs artificial neural networks (ANNs), specifically the Nonlinear Autoregressive with External Input (NARX) model as an ANN add-on for Matlab, to forecast Earth-Vas2 parameters. The model leverages a time series approach, with the Earth-Vas2 index (y(t)) as the predictive target and various parameters (eleva tions, static water level, aquifer material thickness, transmissivity, hydraulic conductivity, specific capacity, vadose media) denoted as x(t) to facilitate accurate predictions. The Levenberg-Marquardt training algorithm was applied to the ANN using geo-hydraulic data from 56 boreholes for training and 24 boreholes for validation and testing. Validation metrics such as mean square error (MSE), correlation coefficient (R), and coefficient of determination (R2 ) were utilized. The results indicate a high degree of accuracy, with low MSE values of 0.0171 (training), 0.0087 (validation), and 0.0327 (testing). Strong correlation coefficients (R) of 0.9882, 0.9898, and 0.9844, along with high R2 values (97.66%), emphasize the robustness of the ANN model. Actual and predicted Earth-Vas2 values exhibit a similar pattern, affirming the model’s effectiveness. The R-value of 0.9882 signifies a strong positive correlation within the model, validating its ability to capture variable interactions in fluid migration control. Geo-hydraulic Earth-Vas2 maps identify areas with varying migration efficiency, guiding groundwater management. The study emphasizes routine subsurface assessments for crucial data in environ mental planning and risk reduction in industrial and municipal activities. This method provides cost-effective estimation of key geo-hydraulic properties for aquifer vulnerability assessments, with far-reaching implica tions for groundwater management, environmental protection, and land use planning. URL Link na plný text Public work category ADC No. of Archival Copy 54309 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ References PERIODIKÁ-Súborný záznam periodika 
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Title Exploratory mapping of the geothermal anomalies in the neoproterozoic Arabian shield, Saudi Arabia, using magnetic data Author info Kamal Abdelrahman ... [et al.] Author Abdelrahman Kamal (20%)
Co-authors Ekwok Stephen Eguba (15%)
Ulem Christian Atelwhobel (10%)
Eldosouky Ahmed M. (5%)
Al-Otaibi Naif (5%)
Hazaea Bashar Y. (10%)
Hazaea Saddam Ali (5%)
Andráš Peter 1953- (20%) UMBFP01 - Katedra geografie a geológie
Akpan Anthony E. (10%)
Source document Minerals : international, peer-reviewed, open access journal of natural mineral systems, mineral resources, mining, and mineral processing. Vol. 13, no. 5 (2023), art. no. 694, pp. [1-15]. - Basel : Multidisciplinary Digital Publishing Institute, 2023 Keywords mapovanie - mapping anomálie geotermálna energia - geothermal energy Headings Geogr. Saudská Arábia Form. Descr. články - journal articles Language English Country Switzerland URL Link na plný text Public work category ADC No. of Archival Copy 53318 Repercussion category OUALID, Melouah - EBONG, Ebong D. Lithospheric and asthenospheric properties of the saharan platform inferred from potential field, geoid and heat flow data. In Journal of african earth sciences. ISSN 1464-343X, 2024, vol. 209, art. no. 105124, pp. 1-13.
Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ References PERIODIKÁ-Súborný záznam periodika article
Title Accuracy assessment of various supervised machine learning algorithms in litho-facies classification from seismic data in the Penobscot field, Scotian Basin Author info Satya Narayan ... [et al.] Author Narayan Satya (30%)
Co-authors Konka Suresh (15%)
Chandra Akash (10%)
Abdelrahman Kamal (5%)
Andráš Peter 1953- (30%) UMBFP01 - Katedra geografie a geológie
Eldosouky Ahmed M. (10%)
Source document Frontiers in Earth Science. Vol. 11 (2023), pp. [1-14]. - Lausanne : Frontiers Media S.A., 2023 Keywords strojové učenie - machine learning validácia uhľovodíky Headings Geogr. Škótsko Form. Descr. články - journal articles Language English Country Switzerland URL Link na plný text Public work category ADC No. of Archival Copy 53323 Repercussion category KADRI, Mohamed Mehdi - GANGULI, Shib Sankar - SEN, Souvik - HACINI, Messaoud - KUMAR, Prakash. Characterization and feature ranking of well log variables using data-driven algorithms for total organic carbon estimation of organic-rich shales. In Energy and fuels. ISSN 0887-0624, 2023, vol. 37, no. 24, pp. 19575-19589.
CHANG, Jinyu - ZHANG, Nannan - ZHOU, Kefa - TAO, Jintao - CHEN, Li - ZHANG, Hao - CHI, Yujin. Apriori algorithm-based three-dimensional mineral prospectivity mapping-an example from meiling south area, Xinjiang, China. In Minerals. ISSN 2075-163X, 2023, vol. 13, no. 7, pp. 1-29.
Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ References PERIODIKÁ-Súborný záznam periodika article
Title Phytoaccumulation of mercury into vascular plants at area of abandoned Hg-ore deposit Malachov (Central Slovakia) Author info Pavol Midula ... [et al.] Author Midula Pavol 1989- (50%)
Co-authors Andráš Peter 1953- (20%) UMBFP04 - Katedra životného prostredia
Ševčíková Janka 1986- (20%) UMBFP04 - Katedra životného prostredia
Wiche Oliver (10%)
Source document Carpathian journal of earth and environmental sciences. Vol. 18, no. 1 (2023), pp. 225-229. - Baia Mare : North University of Baia Mare, 2023 Keywords ortuť rudné ložiská - ore deposits rastliny - plants Headings Geogr. Malachov Form. Descr. články - journal articles Language English Country Romania URL Link na zdrojový dokument Public work category ADM No. of Archival Copy 53075 Repercussion category RAUF, Annisa Utami - MALLONGI, Anwar - ASTUTI, Ratna Dwi Puji. Evaluation of chromium exposure in adults and children around Maros karst in Indonesia. In Carpathian journal of Earth and environmental sciences. ISSN 1842-4090, 2023, vol. 18, no. 2, pp. 267-275.
Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ References PERIODIKÁ-Súborný záznam periodika article
Title Direct detection of groundwater accumulation zones in saprock aquifers in tectono-thermal environments Author info Anthony E. Akpan ... [et al.] Author Akpan Anthony E. (20%)
Co-authors Ekwok Stephen Eguba (10%)
Ben Ubong Camilus (5%)
Ebong Ebong Dickson (5%)
Thomas Jewel Emem (5%)
Ekanem Aniekam Martin (5%)
George Nyaknno J. (5%)
Abdelrahman Kamal (5%)
Fnais Mohammed S. (5%)
Eldosouky Ahmed M. (5%)
Andráš Peter 1953- (20%) UMBFP01 - Katedra geografie a geológie
Alarifi Saad S. (10%)
Source document Water. Vol. 15, no 22 (2023), pp. 1-21. - Basel : Multidisciplinary Digital Publishing Institute, 2023 Keywords podzemné vody podzemné termálne vody saprockové vodonosné vrstvy - saprock aquifers Form. Descr. články - journal articles Language English Country Switzerland Annotation VES data acquired in tectono-thermally disturbed environments sometimes contain outliers when plotted on a bi-logarithmic graph. These noisy datasets usually distort the discernible trend of the VES curve, by plotting abnormally above or below its dominant trend at the point of their occurrence. This type of distortion is different from those arising from other causes such as galvanic and static distortions, which usually affect a segment of a curve without changing the curve’s trend. Allowing these unusual points to remain within the datasets during the data processing and modelling phases always produces unsatisfactory results because their presence usually causes the root-mean-square error to exceed the preset acceptable limit. Consequently, such data points are usually deleted to recover the trend of the curve and generate interpretable models during the traditional curve-smoothening (data processing) phase. This study has shown that these unusual data points are indicative of groundwater accumulation zones in porous medium and can also estimate likely borehole productivities in tectono-thermally disturbed environments. A single-point drop signifies a low-yielding fracture characterized by small apertures. The groundwater yield from this group of fractures can barely support the daily domestic water needs of some families. However, VES curves where two or more points break away from the trend of the curve indicate high-yielding fractures or nonconformities, provided that the resistivity value of the first break-point is lower than those of subsequent ones. The productivity level of this category of fractures is high enough to support the water needs of families. The apparent resistivities of these saturated fractures usually vary between 40 and 500 Wm, depending on the nature of the host rock. These qualitative interpretations have been confirmed by drilling and Water 2023, 15, 3946 17 of 21 pumping test results. Depths to these water-filled fractures, though location-dependent, typically vary between 40 and 100 m in the study area. These saturated fractures are common in locations with high lineament density. Optimal data-quality-management practices—including determining the sensitivity level of the equipment, repeating the measuring process, and changing the potential electrode positions and, where possible, the VES profile orientation—must be implemented to confirm the integrity and subterranean nature of the break-off points. URL Link na plný text Public work category ADC No. of Archival Copy 53990 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ References PERIODIKÁ-Súborný záznam periodika article
Title Biostratigraphy of the late Campanian - Maastrichtian of the Duwi Basin, Red Sea, Egypt Author info Orabi H. Orabi ... [et al.] Author Orabi Orabi H. (25%)
Co-authors Eldosouky Ahmed M. (15%)
Abdelrahman Kamal (10%)
El Gammal Reda M. (10%)
Nallamuthu Malarkodi (10%)
Fnais Mohammed S. (5%)
Andráš Peter 1953- (25%) UMBFP04 - Katedra životného prostredia
Source document Open Geosciences. Vol. 15, no. 1 (2023), pp. 1-26. - Warsaw : De Gruyter Poland, 2023 Keywords foraminifery biostratigrafia Headings Geogr. Egypt Form. Descr. články - journal articles Language English Country Poland Annotation During the Late Campanian, sea-level fluctuation occurred in the form of two chert bands and the topmost conglomeratic phosphate beds (CF8a zone). A great transgression event occurred associated with the global warming (CF8b zone) trend indicated by large double-keeled foraminifera as Globotruncana aegyptiaca Nakkady of oligotrophic conditions. Through the event of CF6/CF5 zones, a gradual increase in the relative abundance of Gublerina rajagopalani Govindan and Planoheterohelix planata (Cushman) and other heterohelicids have been shown to tolerate and thrive in a wide range of environmental conditions as in high-stress environments. Sea-level fall at the CF6 zone and the overlying CF5 boundary marked a warming climate for the Middle Maastrichtian Event. In the latest CF4 records, the beginning of the decrease in planktic/benthic ratio, globotruncanids, rugoglobigerinids, and heterohelicids indicating a fall in sea level coincided with the CF4/CF3 and the development of dark grey shales in a regressive regime. The observed low abundance of planktic specimens may be due to the presence of pyrite with black shale interval suggesting low oxygen condition. The latest zones CF3, CF2, and CF1 are generally characterized by heterohelicids blooms specially Planoheterohelix globulosa (Ehrenberg), and a gradual decrease in diversity associated with the warming phase before the K/Pg boundary event, implying high biotic stress to even absent of Guembelitria cretacea species through CF3–CF1 zones. Pseudotextularia elegans (Rzehak) occurs in the zones CF4 and CF2 warming of phases 1 and 2 of Deccan Trap Volcanic. The absence of P. elegans (Rzehak) in the zone (CF3) is postulated due to a tectonic cause (maximum cooling of Deccan Trap Volcanic) whereas its absence in the zone (CF1) was due to regression of phase 2. URL Link na plný text Public work category ADC No. of Archival Copy 52900 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ References PERIODIKÁ-Súborný záznam periodika article
Title Dôsledky ťažby na environment v oblasti Cu-ložiska Montecatini Val di Cecina (Toskánsko, Taliansko) Author info Janka Ševčíková, Ján Tomaškin ... [et al.] Author Ševčíková Janka 1986- (20%) UMBFP04 - Katedra životného prostredia
Co-authors Tomaškin Ján 1963- (15%) UMBFP04 - Katedra životného prostredia
Andráš Peter 1953- (10%) UMBFP04 - Katedra životného prostredia
Buccheri Giuseppe 1973- (5%) UMBFP04 - Katedra životného prostredia
Midula Pavol 1989- (10%)
Andráš Peter Jr. (10%)
Šuránek Matej 1996- (10%) UMBFP08 - Katedra chémie
Benková Nikola 1995- (10%) UMBFP04 - Katedra životného prostredia
Turisová Ingrid 1965- (10%) UMBFP09 - Katedra biológie a ekológie
Source document Geochémia 2023 : zborník vedeckých príspevkov z konferencie. S. 100-101. - Bratislava : Štátny geologický ústav Dionýza Štúra, 2023 / Hiller Edgar ; Koděra Peter ; Milička Ján ; Urík Martin ; Jurkovič Ľubomír ; Lánczos Tomáš ; Vojtková Hana ; Horváthová Hana ; Kordík Jozef ; Stríček Igor ; Geochémia 2023 konferencia Keywords životné prostredie - environment ťažba haldy Headings Geogr. Toskánsko - (Taliansko) Form. Descr. príspevky v zborníku - proceedings papers Language Slovak Country Slovak Republic URL Link na plný text Public work category AFD No. of Archival Copy 53124 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ article
Title Biodostupnosť potenciálne toxických prvkov v antropogénnej pôde opusteného antimónového ložiska Pezinok Author info Jana Havranová, Pavol Midula ... [et al.] Author Havranová Jana (20%)
Co-authors Midula Pavol 1989- (20%)
Čeňanský Slavomír (20%)
Andráš Peter 1953- (20%) UMBFP04 - Katedra životného prostredia
Svobodová Sára (20%)
Source document Geochémia 2023 : zborník vedeckých príspevkov z konferencie. S. 45-47. - Bratislava : Štátny geologický ústav Dionýza Štúra, 2023 / Hiller Edgar ; Koděra Peter ; Milička Ján ; Urík Martin ; Jurkovič Ľubomír ; Lánczos Tomáš ; Vojtková Hana ; Horváthová Hana ; Kordík Jozef ; Stríček Igor ; Geochémia 2023 konferencia Keywords biodostupnosť potenciálne toxické prvky antropogénne vplyvy - anthropogenic influences Headings Geogr. Pezinok (Slovensko) Form. Descr. príspevky v zborníku - proceedings papers Language Slovak Country Slovak Republic URL Link na plný text Public work category AFD No. of Archival Copy 53126 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ article
Title Exploratory assessment of geothermal resources in some parts of the Middle Benue Trough of Nigeria using airborne potential field data Author info Hussain Jaber Alfaifi ... [et al.] Author Alfaifi Hussain Jaber (30%)
Co-authors Ekwok Stephen Eguba (10%)
Ulem Christian Atelwhobel (5%)
Eldosouky Ahmed M. (5%)
Qaysi Saleh (5%)
Abdelrahman Kamal (5%)
Andráš Peter 1953- (25%) UMBFP01 - Katedra geografie a geológie
Akpan Anthony E. (15%)
Source document Journal of King Saud University - Science. Vol. 35, no. 2 (2023), pp. [1-8]. - Amsterdam : Elsevier B.V., 2023 Keywords geotermálna energia - geothermal energy dáta - údaje - data spektrálna analýza Headings Geogr. Nigéria Form. Descr. články - journal articles Language English Country Netherlands URL Link na plný text Public work category ADM No. of Archival Copy 53319 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ References PERIODIKÁ-Súborný záznam periodika article
Title Application of micro-x-ray fluorescence into the plant uptake assessment of nutrients and potentially toxic elements Author info Pavol Midula, Stanislava Milovská ... [et al.] Author Midula Pavol 1989- (20%)
Co-authors Milovská Stanislava (20%)
Ševčíková Janka 1986- (20%) UMBFP07 - Katedra techniky a technológií
Kureková Simona (20%)
Andráš Peter 1953- (20%) UMBFP01 - Katedra geografie a geológie
Source document Carpathian journal of earth and environmental sciences. Vol. 18, no. 2 (2023), pp. 441-445. - Baia Mare : North University of Baia Mare, 2023 Keywords biologické aktivity potenciálne toxické prvky rastlinné extrakty Form. Descr. články - journal articles Language English Country Romania URL Link na zdrojový dokument Public work category ADM No. of Archival Copy 53415 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ References PERIODIKÁ-Súborný záznam periodika article