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A New Hybrid model for Segmentation of the Skin Lesion Based on Residual Attention U-Net

Computers, materials & Continua 2023年第6期75卷 5177-5192页

作者： Saleh Naif Almuayqil Reham Arnous Noha Sakr m.gdy m.fadel Department of Information Systems College of Computer and Information SciencesJouf UniversitySakakaSaudi Arabia Department of Communications and Electronics Delta Higher Institute for Engineering and Technology(DHIET)MansouraEgypt Computers Engineering and Control Systems Department Faculty of EngineeringMansoura UniversityMansouraEgypt

Skin segmentation participates significantly in various biomedical applications,such as skin cancer identification and skin lesion *** paper presents a novel framework for segmenting the *** framework contains two main stages:The first stage is for removing different types of noises from the dermoscopic images,such as hair,speckle,and impulse noise,and the second stage is for segmentation of the dermoscopic images using an attention residual U-shaped Network(U-Net).The framework uses variational Autoencoders(VAEs)for removing the hair noises,the Generative Adversarial Denoising Network(DGAN-Net),the Denoising U-shaped U-Net(D-U-NET),and Batch Renormalization U-Net(Br-U-NET)for remov-ing the speckle noise,and the Laplacian Vector median Filter(mLVmF)for removing the impulse *** the second main stage,the residual attention u-net was used for *** framework achieves(35.11,31.26,27.01,and 26.16),(36.34,33.23,31.32,and 28.65),and(36.33,32.21,28.54,and 27.11)for removing hair,speckle,and impulse noise,respectively,based on Peak Signal Noise Ratio(PSNR)at the level of(0.1,0.25,0.5,and 0.75)of *** framework also achieves an accuracy of nearly 94.26 in the dice score in the process of segmentation before removing noise and 95.22 after removing different types of *** experiments have shown the efficiency of the used model in removing noise according to the structural similarity index measure(SSIm)and PSNR and in the segmentation process as well.

关键词： Skin tumor speckle noise impulse noise hair noise deep learning segmentation

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HDLIDP: A Hybrid Deep Learning Intrusion Detection and Prevention Framework

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Computers, materials & Continua 2022年第11期73卷 2293-2312页

作者： m.gdy m.fadel Sally m.El-Ghamrawy Amr m.T.Ali-Eldin mohammed K.Hassan Ali I.El-Desoky Computer Engineering and Systems Department Faculty of EngineeringMansoura UniversityMansoura35516DKEgypt Head of Communications and Computer Engineering Department MISR Higher Institute for Engineering and TechnologyMansoura35111DKEgypt mechatronics Department Faculty of EngineeringHours University in Egypt(HUE)New Damietta34517DTEgypt

Distributed denial-of-service(DDoS)attacks are designed to interrupt network services such as email servers and webpages in traditional computer ***,the enormous number of connected devices makes it difficult to operate such a network *** defined networks(SDN)are networks that are managed through a centralized control system,according to *** controller is the brain of any SDN,composing the forwarding table of all data plane network *** the advantages of SDN controllers,DDoS attacks are easier to perpetrate than on traditional *** the controller is a single point of failure,if it fails,the entire network will *** paper offers a Hybrid Deep Learning Intrusion Detection and Prevention(HDLIDP)framework,which blends signature-based and deep learning neural networks to detect and prevent *** framework improves detection accuracy while addressing all of the aforementioned *** validate the framework,experiments are done on both traditional and SDN datasets;the findings demonstrate a significant improvement in classification accuracy.

关键词： Software defined networks(SDN) distributed denial of service attack(DDoS) signature-based detection whale optimization algorism(WOA) deep learning neural network classifier

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Comprehensive chemical characterization of Pm_(2.5) in the large East mediterranean-middle East city of Beirut,Lebanon

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Journal of Environmental Sciences 2023年第11期133卷 118-137页

作者： Nansi Fakhri marc fadel Fatma Ozturk melek Keles minas Iakovides michael Pikridas Charbel Abdallah Cyril Karam Jean Sciare Patrick L.Hayes Charbel Afif EmmA Research Group Centre d’Analyses et de RechercheFaculty of SciencesUniversitéSaint-JosephBeirutLebanon Department of Chemistry Faculty of SciencesUniversitéde MontréalMontréalQuébecCanada Environmental Engineering Department Faculty of EngineeringBolu Abant Izzet Baysal UniversityBoluTurkey Climate and Atmosphere Research Center(CARE-C) The Cyprus InstituteNicosiaCyprus

The chemical composition of Pm_(2.5) at two sites in Lebanon,a country in the East mediterranean-middle East region,is investigated in the spring and summer *** average Pm_(2.5) concentrations were of(29±16)μg/m 3 for Beirut urban site and(32±14)μg/m 3 for Beirut suburban *** study showed that the geographic location of the East mediterranean region,such as its proximity to the mediterranean Sea and the dust storm intrusion are a significant contributor to the high Pm levels from natural sources,which cannot be mitigated,rendering the Pm_(2.5) WHO annual Air Quality guideline unattainable due to high natural background,which also applies to the entire middle East *** and Eastern Europe are the dominant origin of air masses throughout our sampling days,suggesting the long-range transport as an important potential contributor to the high observed concentrations of V,Ni,and sulfate in this region most probably in other East mediterranean countries than Lebanon *** local sources determined through the chemical speciation including organics are road transport,resuspension of dust and diesel private generators.A health risk assessment of airborne metals was performed and the carcinogenic risk for all the metals exceeded by 42(adults)and 14(children)times the acceptable risk level(10^(-6))at both *** was the predominant carcinogenic metal,emphasizing the need to replace energy production with cleaner energy on a regional level and highlighting the severe impact of air pollution on the health of inhabitants in this region’s main cities.

关键词： Chemical composition Pm_(2.5) Eastern mediterranean middle East Organic aerosols Health risk assessment

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Potential reduction in water consumption of greenhouse evaporative coolers in arid areas via earth-tube heat exchangers

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Journal of Arid Land 2021年第4期13卷 388-396页

作者： Abdulrahim m AL-ISmAILI moustafa A fadel Hemantha JAYASURIYA L H Janitha JEEWANTHA Adel AL-mAHDOURI Talal AL-SHUKEILI Department of Soils Water and Agricultural EngineeringSultan Qaboos UniversityMuscat PC123Oman Department of Arid land Agriculture United Arab Emirates UniversityAl-Ain 17555United Arab Emirates Centre for Future materials&School of mechanical and Electrical Engineering University of Southern QueenslandToowoomba QLD 4350Australia

This study aimed to explore the potential of developing a novel cooling system combining a greenhouse and an earth-tube heat exchanger(ETHE).In this system,greenhouse air is circulated through the underneath soil mass to use the deep-soil cooling *** was achieved through the following ***,soil temperature profile inside and outside the cultivated greenhouse was monitored for almost one year to study the possibility of using deep-soil coldness for cooling the greenhouse ***,a prototype ETHE was built to practically investigate the potential reduction in air temperature as the air flows inside the deep earth ***,a prototype greenhouse was erected to study the ETHE *** from the first experiment revealed that soil temperature at a soil depth of 2.5 m inside the greenhouse offers good conditions to bury the *** soil temperature at this soil depth was below the maximum temperature(32℃)that most greenhouse crops can *** from the prototype ETHE showed a slight reduction in air temperature as it passed through the *** the prototype of the integrated greenhouse and ETHE system,reduction in air temperature was observed as the air passed through the ETHE *** night,the air was heated up across the ETHE pipes,indicating that the ETHE was working as a *** concluded from this study that greenhouses in arid climates can be cooled using the ETHE concept which would save a large amount of water that would otherwise be consumed in the evaporative *** investigations are highly encouraged.

关键词： earth-tube heat exchanger greenhouse fan-pad cooling system water saving arid areas

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Antimicrobial Agents from Selected medicinal Plants in Libya

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Chinese Journal of Integrative medicine 2016年第3期22卷 177-184页

作者： Hasan mH muhaisen miftah mailoud Ab-mous fadel A Ddeeb Aboclaid All Rtemi Omer m Taba mehtab Parveen Faculty of Science and Arts Sharora University of Najran Saudi Arabia Faculty of Science University of Al-Jabal AI- Gharbi EI-Zintan- Libya Department of Chemistry Aligarh Muslim University Aligarh 202002 India

Objective： To test the in vitro antimicrobial efficacy of water and methanol extracts of 23 plant species that are commonly used in Libyan folk medicine. methods： The antimicrobial activity was determined using the well-diffusion method. Four test microorganisms were used namely, Escherichia coil, Salmonella species, Staphylococcus aureus and Bacillus subtilis. The minimum inhibitory concentration （mIC） was determined for the high biologically active crude plant extracts. Results： Among 23 medicinal plants used in the study, only 5 methanolic extracts [Rosmarinus offcinalis L., Carduus marianium L., Lantana camara L., Rhus tripartite （ueria） Grande, and Thymus capitatus （L.） Hoffm （link）] showed the highest antimicrobial activity against Staphylococcus aureus, Bacillus subtilis and Salmonella species, while 22 methanolic and aqueous extracts showed moderate to weak antimicrobial activity on all tested organisms. However 19 of the extracts showed no activity at all against Gram -ve and Gram ＋ve microorganisms. mIC was found to be 1.25 mg/mL （Thymus capitatus）, 3 mg/mL （Rhus tripartite）, 4 mg/mL （Carduus marianium）, 5 mg/mL （Rosamarinus officinalis） and 5 mg/mL （Lantana camara）, respectively. Condusions： The present results revealed that, crude methanolic extracts of the investigated Libyan folk medicinal plants exhibited mild to high in vitro antibactedal activities against Gram-positive and Gram-negative microorganisms.

关键词： medicinal plant extracts antimicrobial activity minimum inhibitory concentration Ubyan folk medicine

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methyl gallate isolated from mangifera pajang kernel induces proliferation inhibition and apoptosis in mCF-7 breast cancer cells via oxidative stress

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Asian Pacific Journal of Tropical Biomedicine 2022年第4期12卷 175-184页

作者： Ranneh Yazan Abu Bakar mohd Fadzelly Rahim Azlen-Che Kassim Nur Kartinee Stanslas Johnson Teh Yuan-Han fadel Abdulmannan Ellulu mohammed S Department of Technology and Natural Resources Faculty of Applied Science and TechnologyUniversiti Tun Hussein Onn MalaysiaPagoh CampusKM1 Panchor RoadMuar JohorMalaysia Department of Chemistry Faculty of ScienceUniversiti Putra MalaysiaSerdang 43300Malaysia Department of medicine Faculty of Medicine and Health SciencesUniversiti Putra MalaysiaSelangorMalaysia Sport and Exercises Sciences School Faculty of ScienceLiverpool John Moores UniversityLiverpoolUK Department of Clinical Nutrition Faculty of Applied Medical SciencesAl-Azhar University of GazaGaza CityState of Palestine

Objective:To determine the lead bioactive compound in kernel extract of mangifera pajang and its anti-cancer activity against human breast cancer cell lines with positive estrogen receptor(mCF-7).methods:The methanolic extract of dried powder kernel of mangifera pajang was exposed to column chromatography for *** structural elucidation of the isolated compound was characterized using infrared,nuclear magnetic resonance,mass ***,cytotoxicity,morphological changes,flow cytometry and cell cycle arrest analyses were performed to examine the mechanism of anti-proliferation and apoptosis induced by methyl gallate against ***:One compound was isolated from the methanolic extract of mangifera pajang kernel and identified as methyl *** flow cytometric results demonstrated induction of apoptosis in mCF-7 cells by three concentrations of methyl *** cell cycle arrest showed a significant(Pm phase of mCF-7 after treatment with 100μm of methyl *** cell percentage of early and late apoptosis was significant at 10 and 100μm of methyl ***,methyl gallate treatment induced up-regulation of reactive oxygen species levels in mCF-7 cells with a reduction in superoxide dismutase ***:These findings indicate that isolated methyl gallate from mangifera pajang kernel extracts induces growth inhibition and apoptosis in mCF-7 cells via up-regulating oxidative stress pathway.

关键词： mangifera pajang methyl gallate Breast cancer Cell cycle Apoptosis Oxidative stress

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基于状态观测和反馈的伺服系统位置控制器

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清华大学学报（自然科学版） 2008年第1期48卷 24-27页

作者：郑泽东李永东 fadel m 肖曦清华大学电机工程与应用电子技术系北京100084 法国图卢兹国家理工学院LAPLACE CNRS-UmR 5213实验室法国图卢兹31071

为了提高永磁同步电机伺服系统中的位置控制性能,提出一种基于状态观测器和状态反馈的位置控制器。状态观测器可以利用较低精度的位置传感器来准确观测负载转矩、转子位置和转速。基于状态空间算法的位置控制器通过合适的零极点配置,可... 详细信息

为了提高永磁同步电机伺服系统中的位置控制性能,提出一种基于状态观测器和状态反馈的位置控制器。状态观测器可以利用较低精度的位置传感器来准确观测负载转矩、转子位置和转速。基于状态空间算法的位置控制器通过合适的零极点配置,可以提高位置控制性能。利用观测的负载转矩可以把负载的变化作为系统扰动进行补偿。仿真和实验结果表明:该控制器与传统的比例积分微分控制器相比,位置控制快速准确并且没有超调,在负载变化时系统仍然能够保持很好的稳定性和控制精度。

关键词：永磁同步电机状态观测器负载转矩状态反馈位置控制

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Linear and Nonlinear Stokes Waves Theory: Numerical Hydrodynamic and Energy Studies

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Open Journal of Fluid Dynamics 2023年第1期13卷 61-79页

作者： Alpha malick Ndiaye fadel Diop Samba Dia Cheikh mbow Laboratoire de mécanique des Fluides et Transferts Département de Physique Faculté des Sciences et Techniques Université Cheikh Anta Diop (UCAD) Dakar Sénégal

The increase of wave energy in electricity production is an objective shared by many countries to meet growing demand and global warming. To analyze devices capable of converting the energy of sea waves into electrical energy, it is important to master the various theories of gravity waves and generation. We will in our work consider a numerical waves tank for an amplitude A=0.5, a wavelength λ=0.25 , an average height He=10 and a Froude number fixed at 1 × 105. Numerical wave channel analysis is used to reproduce the natural phenomenon of wave propagation in an experimental model. Wave makers are usually used to generate waves in the channel. In theory, the influence of an incident wave can be considered, as in the case of our study. In this study, the evolution of the hydrodynamic parameters and the energy transported in one wavelength can be determined by calculation. A change of variable will be done in this work to facilitate the writing of the boundary conditions at the free surface and at the bottom. The nonlinear Stokes theory will be studied in this case in order to provide hydrodynamic solutions through the Navier-Stokes equations to finally deduce the energetic results. To do this, the finite difference method will be used for the hydrodynamic results such as the velocity potential and the free surface elevation and the trapezium method of Newton for the energetic results. Thus, we will determine the energetic potential according to the decrease in the slope of the tank. To do this, we will take as values of beta representing the inverse of the slope of the tank, β=100, β=105, β=110 and β=105. .

关键词： Waves Tank Energy Waves Gravity Waves Navier-Stokes Numerical Nonlinear Stokes Theory

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革吉最高海相层约束班怒残留海消亡时间(～94 ma)

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科学通报 2019年第15期64卷 1620-1636页

作者：叶加鹏胡修棉孙高远 K. m. BouDagher-fadel 南京大学地球科学与工程学院内生金属矿床成矿机制研究国家重点实验室南京210023 河海大学海洋学院南京210098 Department of Geological Sciences University College London London WC1E 6BT UK

长期以来,班怒(班公湖-怒江的简称)残留海何时消亡及消亡的方式等关键科学问题仍存在较大争议.本文对革吉地区发育的一套晚白垩世沉积进行了系统的地层学、沉积学和岩相学研究,发现其明显不同于北拉萨地体上广泛分布的竟柱山组陆相沉积... 详细信息

长期以来,班怒(班公湖-怒江的简称)残留海何时消亡及消亡的方式等关键科学问题仍存在较大争议.本文对革吉地区发育的一套晚白垩世沉积进行了系统的地层学、沉积学和岩相学研究,发现其明显不同于北拉萨地体上广泛分布的竟柱山组陆相沉积,而以发育海相灰岩和混积岩为特征,野外露头呈现被竟柱山组不整合覆盖的接触关系.本文将这套地层命名唐杂组,代表着拉萨地体和班怒带迄今发现的最高海相层.沉积环境分析表明,唐杂组记录了早期由扇三角洲平原相到前扇三角洲相的水深加深过程,随后海水逐渐消退并变为扇三角洲相砂砾岩沉积.有孔虫化石约束这套地层的时代为Cenomanian期(101~94 ma);砂岩碎屑组分、碎屑锆石U-Pb年代学和Hf同位素等数据指示唐杂组沉积物源发生了一次明显的变化:早期由北拉萨地体和班怒带向南供给,后期转变为来自沉积区南侧的中拉萨地体和下白垩统郎山组灰岩.结合区域古地理分析,本文认为革吉地区唐杂组约束了班怒海在西段消失的时间为~94 ma,同时确认班怒海并非由东向西退出,而是大致同时退出中北拉萨地体.

关键词：唐杂组晚白垩世拉萨地体物源分析班怒洋特提斯

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Pm_(2.5)characterization of primary and secondary organic aerosols in two urban-industrial areas in the East mediterranean

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Journal of Environmental Sciences 2021年第3期33卷 98-116页

作者： marc fadel Frédéric Ledoux mariana Farhat Adib Kfoury Dominique Courcot Charbel Afif Emissions Measurementsand Modeling of the Atmosphere(EMMA)LaboratoryCARFaculty of SciencesSaint Joseph UniversityBeirutLebanon Unitéde Chimie Environnementale et Interactions sur le Vivant UCEIV UR4492FR CNRS 3417University of Littoral Côte d Opale(ULCO)DunkerqueFrance Department of Environmental Sciences University of BalamandAl KourahLebanon Climate and Atmosphere Research Center The Cyprus InstituteNicosiaCyprus

Primary and secondary organic aerosols in Pm_(2.5)were investigated over a one-year campaign at Zouk mikael and Fiaa,*** n-alkanes concentrations were quite similar at both sites(26-29 ng/m^(3))and mainly explained by anthropogenic emissions rather than natural *** concentrations of total Polycyclic Aromatic Hydrocarbons(PAHs)were nearly three times higher at Zouk mikael(2.56 ng/m^(3))compared to Fiaa(0.95 ng/m^(3)),especially for indeno[1,2,3-c,d]pyrene linked to the presence of the power plant.A characteristic indeno[1,2,3-c,d]pyrene/(indeno[1,2,3-c,d]pyrene+benzo[g,h,i]perylene)ratio in the range0.8-1.0 was determined for heavy fuel oil combustion from the power *** acids and hopanes were also investigated and were assigned to cooking activities and vehicular emissions *** were identified for the first time in Lebanon with high concentrations at Zouk and Fiaa(106.88 and 97.68 ng/m^(3) respectively).moreover,the biogenic secondary aerosols revealed higher concentrations in *** total terpene concentration varied between 131 ng/m^(3) at Zouk mikael in winter to 469 ng/m3 at Fiaa in ***,the concentrations of the dicarboxylic acids especially for adipic and phthalic acids were more influenced by anthropogenic *** analysis of molecular markers and diagnostic ratios indicated that the sites were strongly affected by anthropogenic sources such as waste open burning,diesel private generators,cooking activities,road transport,power plant,and industrial ***,results showed different pattern during winter and summer ***,higher concentrations of biogenic markers were clearly encountered during the summer period.

关键词： Pm_(2.5) Secondary organic aerosols PAHs Phthalates Lebanon Urban-industrial sites

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