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Atmospheric photochemistry and secondary aerosol formation of urban air in Lyon,France

Journal of Environmental Sciences 2021年第1期33卷 311-323页

作者： salah eddine sbai Chunlin Li Antoinette Boreave Nicolas Charbonnel Sebastien Perrier Philippe Vernoux Farida Bentayeb Christian George Sonia Gil Department of physics Laboratoires de physique des hauts Energies Modelisation et SimulationMohammed V Uniuersity in RabatRabatMorocco Universite lyon Universite Claude Bernard Lyon 1CNRSIRCELYON2 Auenue Albert Einstein69100 LyonFrance Department of Earth and Planetary Sciences Weizmann Institute of Science76100 RehovotIsrael

Photochemical aging of volatile organic compounds(VOCs)in the atmosphere is an important source of secondary organic aerosol(SOA).To evaluate the formation potential of SOA at an urban site in Lyon(France),an outdoor experiment using a Potential Aerosol Mass(PAM)oxidation flow reactor(OFR)was conducted throughout entire days during JanuaryFebruary *** variation of SOA formations and their correlation with OH radical exposure(OHexp),ambient pollutants(VOCs and particulate matters,PM),Relative Humidity(RH),and temperature were explored in this *** urban air was exposed to high concentration of OH radicals with OHexp in range of(0.2-1.2)×10^12 molecule/(cm^3·sec),corresponding to several days to weeks of equivalent atmospheric photochemical *** results informed that urban air at Lyon has high potency to contribute to SOA,and these SOA productions were favored from OH radical photochemical oxidation rather than via *** SOA formation(36μg/m^3)was obtained at OHexp of about 7.4×10^11 molecule/(cm^3·sec),equivalent to approximately 5 days of atmospheric *** correlation between SOA formation and ambient environment conditions(RH&temperature,VOCs and PM)was *** was the first time to estimate SOA formation potential from ambient air over a long period in urban environment of Lyon.

关键词： Urban air Oxidation Flow Reactor(OFR) Secondary Organic Aerosol(SOA) Volatile Organic Compounds(VOC) Photochemistry Lyon

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Hierarchical Mean-Field Type Control of Price Dynamics for Electricity in Smart Grid

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Journal of Systems Science & Complexity 2022年第1期35卷 1-17页

作者： FRIHI Zahrate El Oula CHOUTRI salah eddine BARREIRO-GOMEZ Julian TEMBINE Hamidou Laboratory of Probability and Statistics(La PS) Department of MathematicsBadji-Mokhtar UniversityB.P.12Annaba 23000Algeria. NYUAD Research Institute New York University Abu DhabiUAE Learning&Game Theory Laboratory New York University Abu DhabiSaadiyat Campus PO Box 129188UAE

This paper solves a mean-field type hierarchical optimal control problem in electricity *** authors consider n-1 prosumers and one *** ith prosumer,for 1 详细信息

This paper solves a mean-field type hierarchical optimal control problem in electricity *** authors consider n-1 prosumers and one *** ith prosumer,for 1

关键词： Electricity price dynamics hierarchical control mean-field-type control smart grids

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Fermion Mass Hierarchies in Singlet-Extended Minimal-Supersymmetric-Standard-Model Quivers

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Chinese Physics Letters 2011年第11期28卷 64-67页

作者： salah eddine Ennadifi Adil Belhaj El Hassan Saidi Laboratory of High Energy Physics Modeling and SimulationFaculty of ScienceMohammed V-Agdal UniversityRabatMorocco Centre of Physics and Mathematics CPM-CNESTENRabatMorocco

In the context of type-IIA orientifold compactifications,we discuss the fermion masses in a two-singlet-extended minimal-supersymmetric-standard-model four-stack quiver with U(3)×Sp(1)×U(1)×U(1)gauge *** corresponding effective superpotential exhibits hierarchical coupling term scales giving a partial solution to the fermion masses *** the known data with upper bound neutrino masses mvt≤2 eV,we estimate the relevant scales for the model.

关键词： symmetry problem symmetric

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Exotic Hadrons and Underlying Z_(2,3) Symmetries

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Communications in Theoretical Physics 2015年第12期64卷 697-700页

作者： Adil Belhaj salah eddine Ennadifi Moulay Brahim Sedra Département de Physique Faculté PolydisciplinaireUniversité Sultan Moulay Slimane LPHE-MS Faculté des SciencesUniversité Mohammed V Département de Physique SIMO-FSKFaculté des SciencesUniversité Ibn Tofail Kénitra

The recent observation of higher quark combinations, tetraquarks and pentaquarks, is a strong indication of more exotic hadrons. Using Z_2 and Z_3 symmetries and standard model data, a general quark combination producing new hadronic states is proposed in terms of polygon geometries according to the Dynkin diagrams of ?_n affine Lie algebras. It has been shown that Z_(2,3) invariance is crucial in the determination of the mesonic or the baryonic nature of these states. The hexagonal geometry is considered in some details producing both mesonic and baryonic states. A general class of this family is also presented.

关键词： standard model exotic hadrons and Lie symmetries

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Understanding sarcoma drug resistance one cell at a time

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Cancer Drug Resistance 2022年第1期5卷 90-92页

作者： salah-eddine Cherradi-Lamhamedi Danh Truong Joseph A.Ludwig Department of Sarcoma Medical Oncology Division of Cancer MedicineThe University of TexasMD Anderson Cancer CenterHoustonTX 77030USA

As true for any cancer,intrinsic and acquired drug resistance represent perhaps the single biggest obstacle limiting our ability to cure patients with metastatic ***,tackling this challenge has been particularly difficult for *** and foremost,sarcomas are rare and diverse,which splits a class of tumors representing less than 1 percent of all malignancies into more than fifty smaller molecularly and histologically distinct entities,each having its own etiology,prognosis,and clinical *** the most“common”sarcoma subtypes(e.g.,liposarcoma,leiomyosarcoma,or gastrointestinal stromal tumors)have annual incidences in the thousands in the United States,whereas rarer subtypes like desmoplastic small round cell tumors number less than fifty per *** to their scarcity,it’s not uncommon for just a few cell lines,organoids,or patient-derived tumor explants to exist for each sarcoma *** shortage limits their usefulness to model the wide variety of innate and adaptive mechanisms that exist in human *** times,no representative preclinical model *** scarcity of FDA-approved drugs aimed at sarcoma-specific targets,often fusion proteins and transcription factors,is also problematic.

关键词： sarcoma resistance representing

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Evolution of microstructural and mechanical properties of AISI 316 during continuous drive friction welding process

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China Welding 2020年第4期29卷 7-12页

作者： Ammar Jabbar Hassan Taoufik Boukharouba Djamel Miroud Nacer-eddine Titouche salah Ramtani Houari Boumediene University of Sciences and Technology BP.32El-Alia16111 Bab-EzzoaurAlgiersAlgeria Birine Nuclear Research Center BP.180Ain OusseraDjelfa17200Algeria Paris University 13 Galilée Institute93430 VilletaneuseFrance

The aim of present study is introducing a method by subdividing friction welding phases into three steps according to the temperature change during continuous drive friction welding operation. Thermal curve allowable subdividing of the friction welding phase's time into three distinct periods, while the microstructure evolution during friction welding goes through three different situations. The effects of three distinct periods were achieved by macro-microscopy, microhardness HV_(0.1), tensile tests and scanning electronic microscopy(SEM).The results clearly show that the microstructure during the friction phase goes through three completely different situations which mechanically influenced on microstructure, tensile strength and ductility of the welded joint.

关键词： Continuous drive friction welding friction welding phase steps tensile strength microhardness microstructure

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On Gaugino Dominated Dark Matter

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Journal of Modern Physics 2010年第6期1卷 393-398页

作者： salah eddine Ennadifi El Hassan Saidi 不详

Using the neutral gauginos of and hybridization ideas below the GUT scale, we approach the Dark Matter particle within the Minimal Supersymmetric Standard Model. In the energy range where supergravity effects can be ignored, it is proposed that such DM particle could be inter- preted in terms of a mixture of Bino and Wino states with a lower bound mass not far above the electroweak scale to account for the observed Dark Matter density. We establish the theoretical origin of this particle and study as well its compositeness and its mass bound.

关键词： Minimal Supersymmetric Standard Model Gauginos Dark Matter

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GIS, Forest Fire Prevention and Risk Matrix in the National Forest of Khoudida, Sidi Bel Abbes, Algeria

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Open Journal of Ecology 2020年第6期10卷 356-369页

作者： Mayssara El Bouhissi salah eddine Bachir Bouidjra Khé loufi Benabdeli Laboratoire Ecodé veloppement des espaces Universit&#233 Djillali Liabes de Sidi Bel Abbes Sidi Bel Abbes Algeria Laboratoire Gé o-Environnement Universit&#233 Stambouli de Mascara Mascara Algeria

Forest fires in Algeria are ravaging an average of more than 32,000 hectares annually despite the prevention and control plan put in place. They are the most damaging factor of degradation of the forest and weigh heavily on the environment and the local economy. Conventional methods for fire prevention and control are time consuming and are not always reliable in view of the complexity and diversity of forest ecosystems. The main idea behind this study is to use the GIS and remote sensing for the development of a fire risk map of the Khoudida State Forest (Algeria). The approach adopted involves three parameters that control the fire behavior, which are: the top-morphology of the field, the combustibility of the plant cover and hazards. For each factor its correlation with risk was evaluated;the combination of the slope, altitude and exposure parameters in the topo-morphological index and the hazard map made it possible to evaluate the average risk for an area of more than 2132 hectares, 1521 hectares high and only 493 hectares, respectively 51.4%, 36.7% and 11.9%.

关键词： Fire GIS Remote Sensing Vulnerability Forest Hazard Khoudida Risk

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Parameter Estimation of a Distributed Hydrological Model Using a Genetic Algorithm

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Open Journal of Modern Hydrology 2016年第3期6卷 151-167页

作者： Jasmin Boisvert Nassir El-Jabi André St-Hilaire salah-eddine El Adlouni Faculty of Engineering Department of Civil Engineering Université de Moncton Moncton Canada INRS Centre Eau-Terre-Environnement Québec City Canada Department of Mathematics and Statistics Faculty of Sciences Université de Moncton Moncton Canada

Water is a vital resource, and can also sometimes be a destructive force. As such, it is important to manage this resource. The prediction of stream flows is an important component of this management. Hydrological models are very useful in accomplishing this task. The objective of this study is to develop and apply an optimization method useful for calibrating a deterministic model of the daily flows of the Miramichi River watershed (New Brunswick). The model used is the CEQUEAU model. The model is calibrated by applying a genetic algorithm. The Nash-Sutcliffe efficiency criterion, modified to penalize physically unrealistic results, was used as the objective function. The model was calibrated using flow data (1975-2000) from a gauging station on the Southwest Miramichi River (catchment area of 5050 km2), obtaining a Nash-Sutcliffe criterion of 0.83. Model validation was performed using flow data (2001-2009) from the same station (Nash-Sutcliffe criterion value of 0.80). This suggests that the model calibration is sufficiently robust to be used for future predictions. A second model validation was performed using data from three other measuring stations on the same watershed. The model performed well in all three additional locations (Nash-Sutcliffe criterion values of 0.77, 0.76 and 0.74), but was performing less well when applied to smaller sub-basins. Nonetheless, the relatively strong performance of the model suggests that it could be used to predict flows anywhere in the watershed, but caution is suggested for applications in small sub-basins. The performance of the CEQUEAU model was also compared to a simple benchmark model (average of each calendar day). A sensitivity analysis was also performed.

关键词： Hydrological Modeling Genetic Algorithm CEQUEAU Model Beta Function Miramichi River

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Cultural and Socio-economical Dimensions a- Human Reproduction and Sex Education in the Biology Textbooks of Eight Countries

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Sociology Study 2012年第12期2卷 963-968页

作者： Sabah Selmaoui Bouj emaa Agorrama salah-eddine Kzami Abdelaziz Razouki Pierre Clement Silvia Caravita University Cadi Ayyad Morocco University Montpellier 2 France University Lyon 1 France National Research Council Italy

This study was carried out within the European research project ＂Biology, Health and Environmental Education for Better Citizenship＂. It is a comparative analysis of textbooks from eight Mediterranean countries which differ by their cultures, their socio-economical levels, and their religions. This work is focused on the sensitive educational topic ＂Human Reproduction and Sex Education＂. And 43 biology textbooks are analyzed among eight countries： four are in Europe and four in Africa and Middle East. Grids were built to identify implicit values in the texts and images. It is a more precisely explicit or implicit presence of cultural, socio-economical, and ethical dimensions. The investigation concerns whether the authors of textbooks present differently this theme depending on the socio-cultural, ethical, and religious contexts. The content of the textbooks was analyzed as reflecting the conceptions of their authors and publishers. The outcomes of the analyses show that several textbooks present images of human beings restricted to only one ethnic type, usually white-skinned and with fair hair. The social, cultural, economical, and ethical dimensions were generally absent, except for some interest for them in few European textbooks.

关键词： School textbooks human reproduction sex education cultural dimension socio-economical dimension

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