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Water erosion risk mapping using derived parameters from digital elevation model and remotely sensed data

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Geo-Spatial Information Science 2012年第3期15卷 157-169页

作者： soufiane MAIMOUNI Abderrazak el-HARTI Abderrazak BANNARI el-Mostafa BACHAOUI Remote Sensing and Geographical Information Systems Laboratory Faculty of Science and TechniquesUniversity of Sultan Moulay SlimaneBeniMellalMorocco Remote Sensing and Geomatics of the Environment Laboratory Department of GeographyUniversity of OttawaOntarioCanada

The aim of this study is to map the areas exposed to water erosion risks in the High Atlas Mountains of Morocco around the Hassan-I *** methodology is based on the analysis of the water power index(WPI)as a hydrological parameter,the vegetation cover,and the litho-logical *** WPI was derived from a Digital elevation Model(DEM)and the litho-logical units and vegetation cover were derived from Advanced Land Imager sensor on the Earth Observing-1 satellite *** image was corrected from radiometric and atmospheric effects,and geometrically rectified using a DEM and grounds control *** variables were integrated in a Geographical Information Systems environment,and Multi-Criteria Analyses were used to derive the water erosion risks map pointing out the most exposed areas requiring the implementation of suitable conservation *** validation of the obtained results shows the simplicity and the potential of this approach for water erosion risks mapping.

关键词： water erosion risks GIS remote sensing vegetation cover litho-logical units hydrological parameter

Jacobson's Lemma for Generalized Drazin–Riesz Inverses

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Acta Mathematica Sinica,English Series 2023年第3期39卷 481-496页

作者： soufiane HADJI Hassane ZGUITTI Department of Mathematics Dhar El Mahraz Faculty of ScienceSidi Mohamed Ben Abdellah UniversityP.O.Box 1796 Fes-Atlas30003 Fez Morocco

For bounded linear operators A,B,C and D on a Banach space X,we show that if BAC=BDB and CDB=CAC then I-AC is generalized Drazin-Riesz invertible if and only if I-BD is generalized Drazin-Riesz invertible,which gives a positive answer to Question 4.9 in Yan,Zeng and Zhu[Complex *** 14,Paper No.12(2020)].In particular,we show that Jacobson’s lemma holds for generalized Drazin-Riesz inverses.

关键词： Jacobson's lemma Drazin inverse generalized Drazin-Riesz inverse

Mc Kean–Vlasov BSDEs with Locally Monotone Coefficient

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Acta Mathematica Sinica,English Series 2023年第7期39卷 1414-1424页

作者： Brahim BOUFOUSSI soufiane MOUCHTABIH LIBMA Faculty of Sciences SemlaliaCadi Ayyad University2390 MarrakeshMorocco École Supérieure de Technologie d'el Kelaa des Sraghna UniversitéCadi AyyadRoute de Béni Mellal Km 8 B.P.104El Kelaa des SraghnaMorocco

We consider a McKean Vlasov backward stochastic differential equation(MVBSDE) of the form Y_(t)=-F(t,Y_(t),Z_(t),[Y_(t)]) dt+Z_(t) dB_(t),Y_(T)=ξ,where [Y_(t)] stands for the law of Y,.We show that if F is locally monotone in y,locally Lipschitz with respect to z and law's variable,and the monotonicity and Lipschitz constants κ_(n),L_(n) are such that L_(n)^(2)+κ_(n)^(+)=O(log(N)),then the MVBSDE has a unique stable solution.

关键词： McKean–Vlasov BSDE locally monotone coefficient stability

ASTER data processing and fusion for alteration minerals and silicification detection:Implications for cupriferous mineralization exploration in the western Anti-Atlas,Morocco

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Artificial Intelligence in Geosciences 2024年第1期5卷 96-113页

作者： soufiane Hajaj Abderrazak el Harti Amine Jellouli Amin Beiranvand Pour Saloua Mnissar Himyari Abderrazak Hamzaoui Mazlan Hashim Geomatic Georessources and Environment LaboratoryFaculty of Sciences and TechniquesSultan Moulay Slimane UniversityBeni MellalMorocco Institute of Oceanography and Environment(INOS) Higher Institution Center of Excellence(HICoE)in Marine ScienceUniversity Malaysia Terengganu(UMT)Kuala Nerus 21030Malaysia National Office of Hydrocarbons and Mines-Office National des Hydrocarbures et des Mines(ONHYM) Moulay Faculty of Built Environment&Surveying Universiti Teknologi Malaysia UTMJohor Bahru 81310Malaysia

Alteration minerals and silicification are typically associated with a variety of ore mineralizations and could be detected using multispectral remote sensing sensors as indicators for mineral *** this investigation,the Visible Near-Infra-Red(VNIR),Short-Wave Infra-Red(SWIR),and Thermal Infra-Red(TIR)bands of the ASTER satellite sensor derived layers were fused to detect alteration minerals and silicification in east the Kerdous inlier for cupriferous mineralization *** image processing techniques were executed in the present investigation,namely,Band Ratio(BR),Selective Principal Component Analysis(SPCA)and Constrained Energy Minimization(CEM)***,the BR and SPCA processing results revealed several alteration zones,including argillic,phyllic,dolomitization and silicification as well as iron oxides and ***,these zones were mapped at sub-pixel level using the CEM ***,kaolinite,dolomite,illite,muscovite,montmorillonite,topaz and hematite were revealed displaying a significant distribution in relation with the eastern Amlen region lithological units and previously detected mineral potential zones using HyMap imaging ***,a close spatial association between iron oxides and hydroxide minerals,argillic,and phyllic alteration was detected,as well as a strong silicification was detected around doleritic dykes unit in Jbel Lkest area.A weighted overlay approach was used in the integration of hydrothermal alteration minerals and silicification,which allowed the elaboration of a new mineral alteration map of study area with five alteration *** and the various employed processing techniques allowed a practical and cost effective mapping of alteration features,which corroborates well with field survey and X-ray diffraction ***,ASTER data and the employed processing techniques offers a practical approach for mineral prospection in comparable settings.

关键词： Remote sensing ASTER Hydrothermal alteration mapping SPCA CEM Kerdous inlier

Enhancing flood risk assessment in northern Morocco with tuned machine learning and advanced geospatial techniques

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Journal of Geographical Sciences 2024年第12期34卷 2477-2508页

作者： MOUTAOUAKIL Wassima HAMIDA soufiane SALEH Shawki LAMRANI Driss MAHJOUBI Mohamed Amine CHERRADI Bouchaib RAIHANI Abdelhadi EEIS Laboratory ENSET of MohammediaHassan Ⅱ University of CasablancaMohammediaMorocco IACS Laboratory ENSET of MohammediaHassan Ⅱ University of CasablancaMohammediaMorocco GENIUS Laboratory SupMTI of RabatRabatMorocco STIE Team CRMEF Casablanca-SettatProvincial Section of El JadidaEl JadidaMorocco

Mapping floods is crucial for effective disaster management. This study focuses on flood assessment in northern Morocco, specifically Tangier, Tetouan, and Larache. Due to the lack of a comprehensive flood inventory map, we used unsupervised learning techniques, such as K-means clustering and fuzzy logic algorithms, to predict flood-prone areas. We identified nine conditioning factors influencing flood risk: elevation, slope, aspect, plan curvature, profile curvature, land use, soil type, normalized difference vegetation index(NDVI), and topographic position index(TPI). Using Landsat-8 imagery and a Digital elevation Model(DEM) within a Geographic Information System(GIS), we analyzed topographic and geo-environmental variables. K-means clustering achieved silhouette scores of 0.66 in Tangier and 0.70 in Tetouan, while the fuzzy logic method in Larache produced a Davies-Bouldin Index(DBI) score of 0.35. The maps classified flood risk levels into low, moderate, and high categories. This research demonstrates the integration of machine learning and remote sensing for predicting flood-prone areas without existing flood inventory maps. Our findings highlight the main factors contributing to flash floods and assess their impact, enhancing the understanding of flood dynamics and improving flood management strategies in vulnerable regions.

关键词： remote sensing conditioning factors GIS flood susceptibility machine learning DEM

Unimolecular Dissociation of H<sup>+</sup><sub style="margin-left:-6px;">2n+1</sub>Hydrogen Clusters: Measured Cross Sections and Theoretically Calculated Rate Constants

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World Journal of Condensed Matter Physics 2013年第4期3卷 207-215页

作者： Mohamed Tabti Adil Eddahbi soufiane Assouli Lahcen el Arroum Said Ouaskit Laboratoire Physique de la Matière Condensée (URAC10) Université Hassan II Mohammedia Morocco

In this paper, we studied the process of dissociation unimolecular of the evaporation of H+2n+1 hydrogen clusters according to size, using the Rice-Ramsperger-Kassel-Marcus (RRKM) theory. The rate constants k(E) were determined with the use of statistical theory of unimolecular reactions using various approximations. In our work, we used the products frequencies instead of transitions frequencies in the calculation of unimolecular dissociation rates obtained by three models RRKM. The agreement between the experimental cross section ratio and calculated rate ratio with direct count approximation seems to be reasonable.

关键词： RRKM Rice-Ramsperger-Kassel-Marcus Direct Count Method Classical Method Whitten-Rabinovitch Method High-Energy Cluster Collision Fragmentation Phenomena Cluster Fragmentation Ionic Hydrogen Clusters Ion-Atom Collisions Ionic Cluster Cross Sections Molecular Dissociation Size Effect Metastable States Hydrogen Ions

Scrotal Skin Metastases of Renal Cell Carcinoma: A Case Report

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Case Reports in Clinical Medicine 2015年第3期4卷 93-96页

作者： Khadija Benhayoune Hinde el Fatemi Jamal el Fassi soufiane Mellas Hassan Farih Laila Chbani Nawal Hammas Taoufiq Harmouch Laboratory of Surgical Pathology CHU Hassan II Fez Morocco Department of Urology CHU Hassan II Fez Morocco

Cutaneous metastasis from renal cell carcinoma is believed to be rare. We present a 66-year-old man operated for kidney cancer 20 years ago and has consulted for a scrotal lesion that had started 20 days. The physical examination revealed an erythematous lesion. A biopsy of the scrotal skin was made. We found a scrotal metastasis of renal cell carcinoma.

关键词： Scrotal Skin Renal Cell Carcinoma Metastasis 20 Years

Parameter Estimations for Some Modifications of the Weibull Distribution

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Open Journal of Statistics 2014年第8期4卷 597-610页

作者： Soumaya Ghnimi soufiane Gasmi Faculty of Sciences of Tunis University of Tunis El Manar Tunis Tunisia Tunis National Higher School of Engineering University of Tunis Tunis Tunisia

Proposed by the Swedish engineer and mathematician Ernst Hjalmar Waloddi Weibull (1887-1979), the Weibull distribution is a probability distribution that is widely used to model lifetime data. Because of its flexibility, some modifications of the Weibull distribution have been made from several researches in order to best adjust the non-monotonic shapes. This paper gives a study on the performance of two specific modifications of the Weibull distribution which are the exponentiated Weibull distribution and the additive Weibull distribution.

关键词： Exponentiated Weibull Distribution Additive Weibull Distribution Maximum Likelihood Estimation Kolmogorov-Smirnov Test Simulation

Modulation of peroxisomes abundance by argan oil and lipopolysaccharides in acyl-CoA oxidase 1-deficient fibroblasts

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Health 2013年第1期5卷 62-69页

作者： Riad el Kebbaj soufiane el Kamouni Hammam I.el Hajj Pierre Andreoletti Joseph Gresti Norbert Latruffe M’Hammed Said el Kebbaj Joseph Vamecq Gerard Lizard Boubker Nasser Mustapha Cherkaoui-Malki Universitede Bourgogne Laboratoire BioPeroxIL EA7270DijonFrance Laboratoir de Biochimie et Neurosciences Facultedes Sciences et TechniquesUniversite Hassan ISettatMorocco Universitede Bourgogne Centre de Recherche INSERMDijonFrance Laboratoire de Recherche sur les Lipoproteines et l’Atherosclerose Facultedes Sciences Ben M’sikUniversite Hassan II-MohammediaCasablancaMorocco INSERM and HMNO CBPCHRU LilleLilleFrance

Pseudo-neonatal adrenoleukodystrophy (P-NALD) is a neurodegenerative disorder caused by acyl-CoA oxidase 1 (ACOX1) deficiency with subsequent impairment of peroxisomal fatty acid β-oxidation, accumulation of very long chain fatty acids (VLCFAs) and strong reduction in peroxisome abundance. Increase in peroxisome number has been previously suggested to improve peroxisomal disorders, and in this perspective, the present work was aimed at exploring whether modulation of peroxisomes abundance could be achieved in P-NALD fibroblasts. Here we showed that treatment with the natural Argan oil induced peroxisome proliferation in P-NALD fibroblasts. This induction was independent on activations of both nuclear receptor PPARα and its coactivator PGC-1α. Lipopolysaccharides (LPS) treatment, which caused inflammation, induced also a peroxisome proliferation that, in contrast, was dependent on activations of PPARα and PGC-1α. By its ability to induce peroxisome proliferation, Argan oil is suggested to be of potential therapeutic use in patients with P-NALD.

关键词： Acyl-CoA Oxidase 1 Argan Oil LPS PGC-1a Peroxisome Proliferation P-NALD PPARa