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Source Camera Identification Algorithm Based on Multi-Scale Feature Fusion

Computers, Materials & Continua 2024年第8期80卷 3047-3065页

作者： Jianfeng Lu Caijin Li Xiangye Huang Chen Cui mahmoud emam School of Computer Science and Technology Hangzhou Dianzi UniversityHangzhou310018China Shangyu Institute of Science and Engineering Hangzhou Dianzi UniversityShaoxing312300China Key Laboratory of Public Security Information Application Based on Big-Data Architecture Ministry of Public SecurityZhejiang Police CollegeHangzhou310000China Faculty of Artificial Intelligence Menoufia UniversityShebin El-Koom32511Egypt

The widespread availability of digital multimedia data has led to a new challenge in digital *** source camera identification algorithms usually rely on various traces in the capturing ***,these traces have become increasingly difficult to extract due to wide availability of various image processing *** Neural Networks(CNN)-based algorithms have demonstrated good discriminative capabilities for different brands and even different models of camera ***,their performances is not ideal in case of distinguishing between individual devices of the same model,because cameras of the same model typically use the same optical lens,image sensor,and image processing algorithms,that result in minimal overall *** this paper,we propose a camera forensics algorithm based on multi-scale feature fusion to address these *** proposed algorithm extracts different local features from feature maps of different scales and then fuses them to obtain a comprehensive feature *** representation is then fed into a subsequent camera fingerprint classification *** upon the Swin-T network,we utilize Transformer Blocks and Graph Convolutional Network(GCN)modules to fuse multi-scale features from different stages of the backbone ***,we conduct experiments on established datasets to demonstrate the feasibility and effectiveness of the proposed approach.

关键词： Source camera identification camera forensics convolutional neural network feature fusion transformer block graph convolutional network

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A Sketch-Based Generation Model for Diverse Ceramic Tile Images Using Generative Adversarial Network

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Intelligent Automation & Soft Computing 2023年第9期37卷 2865-2882页

作者： Jianfeng Lu Xinyi Liu Mengtao Shi Chen Cui mahmoud emam School of Computer Science and Technology Hangzhou Dianzi UniversityHangzhou310018China Key Laboratory of Public Security Information Application Based on Big-Data Architecture Ministry of Public SecurityZhejiang Police CollegeHangzhou310000China Faculty of Artificial Intelligence Menoufia UniversityShebin El-Koom32511Egypt

Ceramic tiles are one of the most indispensable materials for interior *** ceramic patterns can’t match the design requirements in terms of diversity and interactivity due to their natural *** this paper,we propose a sketch-based generation method for generating diverse ceramic tile images based on a hand-drawn sketches using Generative Adversarial Network(GAN).The generated tile images can be tailored to meet the specific needs of the user for the tile *** proposed method consists of four ***,a dataset of ceramic tile images with diverse distributions is created and then pre-trained based on ***,for each ceramic tile image in the dataset,the corresponding sketch image is generated and then the mapping relationship between the images is trained based on a sketch extraction network using ResNet Block and jump connection to improve the quality of the generated ***,the sketch style is redefined according to the characteristics of the ceramic tile images and then double cross-domain adversarial loss functions are employed to guide the ceramic tile generation network for fitting in the direction of the sketch style and to improve the training ***,we apply hidden space perturbation and interpolation for further enriching the output textures style and satisfying the concept of“one style with multiple faces”.We conduct the training process of the proposed generation network on 2583 ceramic tile images *** measure the generative diversity and quality,we use Frechet Inception Distance(FID)and Blind/Referenceless Image Spatial Quality Evaluator(BRISQUE)*** experimental results prove that the proposed model greatly enhances the generation results of the ceramic tile images,with FID of 32.47 and BRISQUE of 28.44.

关键词： Ceramic tile pattern design cross-domain learning deep learning GAN generative adversarial networks ResNet Block

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Polyketides with potential bioactivities from the mangrove‑derived fungus Talaromyces ***0362

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Marine Life Science & Technology 2023年第2期5卷 232-241页

作者： Huawei Lv Haibo Su Yaxin Xue Jia Jia Hongkai Bi Shoubao Wang Jinkun Zhang Mengdi Zhu mahmoud emam Hong Wang Kui Hong Xing-Nuo Li College of Pharmaceutical Science&Key Laboratory of Marine Fishery Resources Exploitment&Utilization of Zhejiang Province Zhejiang University of TechnologyHangzhou 310014China School of Pharmaceutical Sciences Wuhan UniversityWuhan 430072China Department of Pathogen Biology&Jiangsu Key Laboratory of Pathogen Biology Nanjing Medical UniversityNanjing 211166China Beijing Key Laboratory of Drug Target Research and New Drug Screening Institute of Materia MedicaChinese Academy of Medical SciencesBeijing 100700China Research Center of Analysis and Measurement Zhejiang University of TechnologyHangzhou 310014China Department of Phytochemistry and Plant Systematics National Research CentreGizaEgypt

Metabolites of microorganisms have long been considered as potential sources for drug *** this study,fve new depsidone derivatives,talaronins A-E(1-5)and three new xanthone derivatives,talaronins F-H(6-8),together with 16 known compounds(9-24),were isolated from the ethyl acetate extract of the mangrove-derived fungus Talaromyces species *** structures were elucidated by analysis of spectroscopic data and chemical methods including alkaline hydrolysis and Mosher’s *** 1 and 2 each attached a dimethyl acetal group at the aromatic ring.A putative biogenetic relationship of the isolated metabolites was presented and suggested that the depsidones and the xanthones probably had the same biosynthetic precursors such as chrysophanol or *** antimicrobial activity assay indicated that compounds 5,9,10,and 14 showed potent activity against Helicobacter pylori with minimum inhibitory concentration(MIC)values in the range of 2.42-36.04μmol/*** secalonic acid D(19)demonstrated signifcant antimicrobial activity against four strains of *** with MIC values in the range of 0.20 to 1.57μmol/***,secalonic acid D(19)exhibited cytotoxicity against cancer cell lines Bel-7402 and HCT-116 with IC_(50) values of 0.15 and 0.19μmol/L,*** structure–activity relationship of depsidone derivatives revealed that the presence of the lactone ring and the hydroxyl at C-10 was crucial to the antimicrobial activity against *** depsidone derivatives are promising leads to inhibit *** and provide an avenue for further development of novel antibiotics.

关键词： Mangrove-derived fungus Talaromyces sp. Depsidone Xanthone Antimicrobial

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Engineering nanomedicines for immunogenic eradication of cancer cells:Recent trends and synergistic approaches

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Acta Pharmaceutica Sinica B 2024年第6期14卷 2475-2504页

作者： Ahmed O.Elzoghby Omar Samir Hagar E.emam Ahmed Soliman Riham M.Abdelgalil Yomna M.Elmorshedy Kadria A.Elkhodairy mahmoud L.Nasr Division of Engineering in Medicine and Division of Renal Medicine Department of MedicineBrigham and Women's HospitalHarvard Medical SchoolBoston 02115MAUSA Cancer Nanotechnology Research Laboratory(CNRL) Faculty of PharmacyAlexandria UniversityAlexandria 21521Egypt

Resistance to cancer immunotherapy is mainly attributed to poor tumor immunogenicity as well as the immunosuppressive tumor microenvironment(TME)leading to failure of immune *** therapeutic strategies including chemotherapy,radiotherapy,photodynamic,photothermal,magnetic,chemodynamic,sonodynamic and oncolytic therapy,have been developed to induce immunogenic cell death(ICD)of cancer cells and thereby elicit immunogenicity and boost the antitumor immune ***,many challenges hamper the clinical application of ICD inducers resulting in modest immunogenic ***,we outline the current state of using nanomedicines for boosting ICD of cancer ***,synergistic approaches used in combination with ICD inducing nanomedicines for remodeling the TME via targeting immune checkpoints,phagocytosis,macrophage polarization,tumor hypoxia,autophagy and stromal modulation to enhance immunogenicity of dying cancer cells were *** further highlight the emerging trends of using nanomaterials for triggering amplified ICD-mediated antitumor immune *** reticulum localized ICD,focused ultrasound hyperthermia,cell membrane camouflaged nanomedicines,amplified reactive oxygen species(ROS)generation,metallo-immunotherapy,ion modulators and engineered bacteria are among the most innovative *** challenges,merits and demerits of ICD inducer nanomedicines were also discussed with shedding light on the future role of this technology in improving the outcomes of cancer immunotherapy.

关键词： Immunogenic cell death Immunogenic eradication Nanomedicines Drug delivery Cancer immunotherapy Antitumor immunity T cells Tumor associated antigens Synergistic immune response

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Effects of Moringa oleifera aqueous extract on the growth performance,blood characteristics,and histological features of gills and livers in Nile tilapia

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Aquaculture and Fisheries 2024年第1期9卷 85-92页

作者： Mahamoud A.emam Ramy M.Shourbela Waleed N.El-Hawarry Seham Y.Abo-Kora Fatma Abdel-Monem Gad Ashraf M.Abd El-latif mahmoud A.O.Dawood Histology Department Faculty of Veterinary MedicineBenha UniversityBenha13511Egypt Department of Animal Husbandry and Animal Wealth Development Faculty of Veterinary MedicineAlexandria UniversityAlexandria22758Egypt Pharmacology Department Faculty of Veterinary MedicineBenha UniversityBenha13511Egypt Clinical Pathology Department Faculty of Veterinary MedicineBenha UniversityBenha13511Egypt Department of Aquatic Animal Diseases and Management Faculty of Veterinary MedicineBenha UniversityBenha13511Egypt Animal Production Department Faculty of AgricultureKafrelsheikh UniversityKafr El-Sheikh33511Egypt The Center for Applied Research on the Environment and Sustainability The American University in CairoCairo11835Egypt

Moringa oleifera is well known as a highly nutritious plant and a water purifier in fish *** fish has many impressive qualities making them very suitable for ***,this study aimed to evaluate the effect of supplementation of Moringa oleifera aqueous extract(MOAE)at varying concentrations(0,100,200,and 400 mg/kg diet for 90 days)on growth performance,hematological,and some biochemical parameters of Nile ***,histological changes and immunohistochemical expression of caspase 3 in gills and livers were *** enhancements(P<0.05)in the final weight,weight gain,specific growth rate,red blood cells,hemoglobin,packed cell volume,white blood cells,and total serum protein were observed in fish fed 200 mg MOAE/kg diet compared with other ***,a significant reduction(P<0.05)of liver and kidney function tests and non-significant changes in lipid profile were *** the other hand,fish fed 400 mg MOAE/kg diet revealed disturbance in the corresponding *** histological degenerative changes were detected in the gills and liver of fish fed 400 mg MOAE/kg *** comparison,fish fed 200 mg MOAE/kg diet showed the best histo-architectures of these organs compared with other *** immune expressions of caspase 3 were determined where gills and liver of fish fed 400 mg MOAE/kg diet revealed extensive number of positive caspase 3 cells indicating severe apoptotic ***,a dietary MOAE at 200 mg/kg diet is recommended to improve the growth performance,hematological parameters,liver and kidney functions in Nile ***,caution must be considered when using MOAE at a concentration over 200 mg/kg diet.

关键词： Growth performance Liver Gills Moringa oleifera Nile tilapia

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Detection of Copy-Scale-Move Forgery in Digital Images Using SFOP and MROGH

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国际计算机前沿大会会议论文集 2016年第1期 83-85页

作者： mahmoud emam Qi Han Hongli Zhang School of Computer Science and Technology Harbin Institute of TechnologyHarbin150080China Department of Mathematics Faculty of ScienceMenoufia UniversityShebin El-koom32511Egypt

Social network platforms such as Twitter, Instagram and Facebook are one of the fastest and most convenient means for sharing digital images. Digital images are generally accepted as credible news but, it may undergo some manipulations before being shared without leaving any obvious traces of tampering; due to existence of the powerful image editing softwares. Copy-move forgery technique is a very simple and common type of image forgery, where a part of the image is copied and then pasted in the same image to replicate or hide some parts from the image. In this paper, we proposed a copy-scale-move forgery detection method based on Scale Invariant Feature Operator (SFOP) detector. The keypoints are then described using MROGH descriptor. Experimental results show that the proposed method is able to locate and detect the forgery even if under some geometric transformations such as scaling.

关键词： Image forensics Copy-move Forgery detection Scale invariant feature RANSAC MROGH descriptor

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Indirect Water Consumption:The Scope 3 of Water?Estimation of This Indicator in Sectors Relying on Agriculture

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Journal of Environmental Science and Engineering(A) 2024年第3期13卷 77-85页

作者： Grégory Schneider-Maunoury Nour emam Maria Fernanda Estrada Cabeza de Vaca Anass Fathi Ricardo Henao Martinez Kahan Korkmaz Omar Mghaieth Christianah Ramanalinjatovo Syrine Saidi Department of Economics and Management UniversitéSorbonne Paris Nord99 Av.Jean Baptiste ClémentVilletaneuse 93430France

The aim of this research project is to assess indirect water consumption,that represents the water consumed in the upstream part of the production life *** are provided for agriculture related companies,as agriculture represents 70%of water consumption on *** consumption varies greatly according to the countries where supply chain is *** estimation is attempted for 27 European listed companies in sectors relying on agriculture in its supply chain.A data is estimated for 22 companies,showing that indirect water consumption is much more important than direct *** questions raised through the estimation of indirect water consumption in various subsectors show the interest in this data,which represents the equivalent of Carbon Scope 3 for water issues.

关键词： Water consumption water footprint financial materiality impact materiality sustainability reporting

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METHOD OF CENTERS ALGORITHM FORMULTI-OBJECTIVE PROGRAMMING PROBLEMS

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Acta Mathematica Scientia 2009年第5期29卷 1128-1142页

作者： Tarek emam Department of Mathematics Faculty of Science (Suez) Suez Canal University Suez Egypt

In this paper, we consider a method of centers for solving multi-objective programming problems, where the objective functions involved are concave functions and the set of feasible points is convex. The algorithm is defined so that the sub-problems that must be solved during its execution may be solved by finite-step procedures. Conditions are given under which the algorithm generates sequences of feasible points and constraint multiplier vectors that have accumulation points satisfying the KKT conditions. Finally, we establish convergence of the proposed method of centers algorithm for solving multiobjective programming problems.

关键词： method of centers multi-objective convergence approximated efficient solution

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Latent Space Representational Learning of Deep Features for Acute Lymphoblastic Leukemia Diagnosis

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Computer Systems Science & Engineering 2023年第4期45卷 361-376页

作者： Ghada emam Atteia Information Technology Department College of Computer&Information SciencesPrincess Nourah bint Abdulrahman UniversityRiyadh11461Saudi Arabia

Acute Lymphoblastic Leukemia(ALL)is a fatal malignancy that is featured by the abnormal increase of immature lymphocytes in blood or bone *** prognosis of ALL is indispensable for the effectual remediation of this *** screening of ALL is conducted through manual examination of stained blood smear microscopic images,a process which is time-consuming and prone to ***,many deep learning-based computer-aided diagnosis(CAD)systems have been established to automatically diagnose *** paper proposes a novel hybrid deep learning system for ALL diagnosis in blood smear *** introduced system integrates the proficiency of autoencoder networks in feature representational learning in latent space with the superior feature extraction capability of standard pretrained convolutional neural networks(CNNs)to identify the existence of ALL in blood *** augmented set of deep image features are formed from the features extracted by GoogleNet and Inception-v3 CNNs from a hybrid dataset of microscopic blood smear images.A sparse autoencoder network is designed to create an abstract set of significant latent features from the enlarged image feature *** latent features are used to perform image classification using Support Vector Machine(SVM)*** obtained results show that the latent features improve the classification performance of the proposed ALL diagnosis system over the original image ***,the classification performance of the system with various sizes of the latent feature set is *** retrieved results reveal that the introduced ALL diagnosis system superiorly compete the state of the art.

关键词： Autoencoder deep learning CNN leukemia diagnosis computeraided diagnosis

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Sorption of certain lanthanides by kieselguhr loaded with Cyanex 572 from sulfate medium

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Journal of Rare Earths 2020年第3期38卷 299-305页

作者： Sh.Sh.emam M.S.Gasser N.E.El-Hefny W.H.mahmoud H.F.Aly Hot Laboratories Centre Atomic Energy AuthorityCairo 13759Egypt Department of Chemistry Faculty of ScienceAin Shams UniversityCairoEgypt

Kieselguhr for chromatography was loaded with Cyanex 572 extractant and characterized using X-ray diffraction(XRF),scanning electron microscopy(SEM),Fourier transform infra-red(FT-IR),and thermal *** of some heavy lanthanides together with yttrium by the prepared kieselguhr/Cy-572 sorbent was investigated by batch experiment in terms of initial metal ions concentrations,volume to solid mass ratio(V/m),sulfuric acid concentration as well as *** sorption equilibrium of Cy-572 loaded kieselguhr was satisfactorily explained by the pseudo second-order kinetic model and Langmuir isotherm ***,the values of thermodynamic parameters △G°,△H°,and △S°at25℃of the studied metal ions show that the process is spontaneous and endothermic in nature.2.0 mol/L HNO3 is promising to desorb these metal ions.

关键词： Sorption Cyanex 572 Lanthanides Kieselguhr Sulfate medium Rare earths

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