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Using BlazePose on Spatial Temporal Graph Convolutional Networks for Action Recognition

Computational Molecular Bioscience（计算分子生物学） 2024年第1期 17页

作者： Md.Isrfil Hossen Fouzia Mostafa Nusrat Jahan Jannatul Ferdaus Amgad Albahi sayed Mashequl Bari

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Computers, Materials & Continua 2023年第1期74卷 19-36页

作者： Motasem S.Alsawadi El-sayed M.El-kenawy Miguel Rio Electronic and Electrical Engineering Department University College LondonLondonWC1E 7JEEngland Department of Communications and Electronics Delta Higher Institute of Engineering and TechnologyMansoura35111Egypt Faculty of Artificial Intelligence Delta University for Science and TechnologyMansoura35712Egypt

The ever-growing available visual data(i.e.,uploaded videos and pictures by internet users)has attracted the research community’s attention in the computer vision ***,finding efficient solutions to extract knowledge from these sources is ***,the BlazePose system has been released for skeleton extraction from images oriented to mobile *** this skeleton graph representation in place,a Spatial-Temporal Graph Convolutional Network can be implemented to predict the *** hypothesize that just by changing the skeleton input data for a different set of joints that offers more information about the action of interest,it is possible to increase the performance of the Spatial-Temporal Graph Convolutional Network for HAR ***,in this study,we present the first implementation of the BlazePose skeleton topology upon this architecture for action ***,we propose the Enhanced-BlazePose topology that can achieve better results than its ***,we propose different skeleton detection thresholds that can improve the accuracy performance even *** reached a top-1 accuracy performance of 40.1%on the Kinetics *** the NTU-RGB+D dataset,we achieved 87.59%and 92.1%accuracy for Cross-Subject and Cross-View evaluation criteria,respectively.

关键词： Action recognition BlazePose graph neural network OpenPose skeleton spatial temporal graph convolution network

Characterization and corrosion behavior of Al-Co-rare earth(Ce-La)amorphous alloy

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Journal of Rare Earths 2023年第5期41卷 771-779,I0006页

作者： Seyed Ali Mousavi sayed Hamid Hashemi Ali Ashrafi Reza Shoja Razavi Seyyed Mehdi Ghazi Mirsaeed Faculty of Materials and Manufacturing Technologies Malek Ashtar University of TechnologyTehran167885611Iran Department of Materials Engineering Malek Ashtar University of TechnologyIsfahanShahin-shahrIran Department of Materials Engineering Isfahan University of TechnologyIsfahan***Iran

A new Al-based amorphous alloy with excellent corrosion resistance and high thermal stability was produced in the Al-Co-RE(Ce-La)*** this regard,two different amorphous-nanocrystalline ribbons:Al_(87.6)-Co_(6.4)-Ce_(3.8-)La_(2.2)(M_(1))and Al_(82.3)-Co_(10.1)-Ce_(4.8)-La_(2.8)(M_(2))were prepared using melt *** results reveal the supercooled liquid region(ATx)of 218℃which shows that the M2alloy has higher thermal stability in comparison to the *** M2ribbons present the superior corrosion resistance because of the formation of amorphous *** icorr,Ecorr,Epit,and Epit-Ecorrvalues of fully amorphous Al-Co-Ce-La metallic ribbons have a better trend of anti-corrosion performance compared to other crystalline and amorphous aluminum alloys.

关键词： Amorphous alloys Melt-spinning Rare earth metal Corrosion behavior

Insights for hepatitis C virus related hepatocellular carcinoma genetic biomarkers: Early diagnosis and therapeutic intervention

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World Journal of Hepatology 2016年第30期8卷 1251-1261页

作者： Wafaa M Ezzat Khalda sayed Amr Department of Internal Medicine National Research Center Department of Medical Molecular Genetics National Research Center

The current review explores the role of emerging molecular contributing factors in liver carcinogenesis on top of hepatitis C virus(HCV). Here we will try to discuss the role genetic and epigenetic factors in pathogenesis of hepatocellular carcinoma. Understanding the role of these factors will help in discovering the mystery of liver carcinogenesis on top of chronic HCV infection. Moreover, use of the studied molecular factors will provide the hepatologists with tailored diagnostic promising biomarkers and flatten the way for establishment of emerging molecular treatment based on exploring the molecular subscription of this aggressive liver cancer.

关键词： Hepatitis C virus Hepatocellular carcinoma Genetic Epigenetic Diagnosis

Yttria Tetragonal Zirconia Biomaterials:Kinetic Investigation

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Journal of Materials Science & Technology 2011年第4期27卷 332-337页

作者： Ezzat S.Elshazly S.M.El-Hout M.El-sayed Ali Department of Mechanical Engineering Virginia Commonwealth University Deptartment of Metallurgy Nuclear Research CenterAtomic Energy Authority

The low temperature aging behavior of polycrystalline tetragonal zirconia was investigated to explore the effects on phase transformation occurring during the process. XRD analysis was conducted for the phase identification and the tetragonal to monoclinic phase transformation was determined. The aging of tetragonal zirconia polycrystals doped with 3 mol% Y203 triggers tetragonal to monoclinic phase transformation on the surface of the specimen only, while the penetration inside the bulk of the specimen is very limited. A slight decrease in the mechanical properties was also observed after aging for 40 h. The transformation kinetics show a nucleation and growth mechanism on the specimen surface to be dominant in the low temperature aging in water environment.

关键词： Low temperature degradation 3Y-TZP Kinetics

Leonurus sibiricus L.(honeyweed):A review of its phytochemistry and pharmacology

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Asian Pacific Journal of Tropical Biomedicine 2016年第12期6卷 1076-1080页

作者： Abu sayed AshraM Alam Shariful Islam Taif Ali Emdad Ullah Abu Zaffar Shibly Aslam Ali mahdi Hasan-Olive The United Graduate School of Agricultural Sciences Iwate University Department of Biochemistry and Molecular Biology Hajee Mohammad Danesh Science and Technology University Faculty of Engineering Iwate University Department of Biotechnology and Genetic Engineering Faculty of Life ScienceMawlana Bhashani Science and Technology University Department of Biochemistry and Molecular Biology University of Dhaka Key Laboratory of Dairy Science College of Food ScienceNortheast Agricultural University Department of Biomedicine University of Bergen

Leonurus sibiricus is a herbaceous plant found in many countries in Asia and *** plant is widely practiced as a remedy for the treatment of diabetes,menstrual irregularities,and *** approval of therapeutic implications of any drugs depends on the well characterized mode of actions of the *** bioactive compounds like diterpenes,triterpenes,flavonoids and phenolic acids in Leonurus sibiricus show analgesic,anti-inflammatory,anti-oxidant,anti-atherogenic and antihemorrhagic,anti-diabetic,anti-bacterial and allelopathic ***,the expression level of some genes is altered by the crude extract treatments,which are effective against cancers,diabetes and cardiovascular diseases where the molecular mechanisms are yet to be ***,the extracts significantly induce nitric oxide production by endothelial nitric oxide synthase,a signaling molecule of vasodilation in combination with interferon-y indicating positive effect on *** investigations are required to unlock the effects of bioactive compounds found in extracts at clinical settings.

关键词： Allelopathy Antidiabetic Antioxidant Cardiovascular disease Leonurus sibiricus

Exact Solutions of Fractional-Order Biological Population Model

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Communications in Theoretical Physics 2009年第12期52卷 992-996页

作者： A.M.A.El-sayed S.Z.Rida A.A.M.Arafa Department of Mathematics Faculty of ScienceAlexandria University Department of Mathematics Faculty of ScienceSouth Valley University

In this paper, the Adomian＇s decomposition method （ADM） is presented for finding the exact solutions of a more general biological population models. A new solution is constructed in power series. The fractional der... 详细信息

关键词： biological populations model fractional Calculus decomposition method Mittag-Leffier function

Forecasting E-Commerce Adoption Based on Bidirectional Recurrent Neural Networks

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Computers, Materials & Continua 2022年第3期70卷 5091-5106页

作者： Abdullah Ali Salamai Ather Abdulrahman Ageeli El-sayed M.El-kenawy Community college Jazan UniversityJazanKingdom of Saudi Arabia Department of Communications and Electronics Delta Higher Institute of Engineering and TechnologyMansoura35111Egypt

E-commerce refers to a system that allows individuals to purchase and sell things *** primary goal of e-commerce is to offer customers the convenience of not going to a physical store to make a *** will purchase the item online and have it delivered to their home within a few *** goal of this research was to develop machine learning algorithms that might predict e-commerce platformsales.A case study has been designed in this paper based on a proposed continuous Stochastic Fractal Search(SFS)based on a Guided Whale Optimization Algorithm(WOA)to optimize the parameter weights of the Bidirectional Recurrent Neural Networks(BRNN).Furthermore,a time series dataset is tested in the experiments of e-commerce demand ***,the results were compared to many versions of the state-of-the-art optimization techniques such as the Particle Swarm Optimization(PSO),Whale Optimization Algorithm(WOA),and Genetic Algorithm(GA).A statistical analysis has proven that the proposed algorithm can work significantly better by statistical analysis test at the P-value less than 0.05 with a one-way analysis of variance(ANOVA)test applied to confirm the performance of the proposed ensemble *** proposed Algorithm achieved a root mean square error of RMSE(0.0000359),Mean(0.00003593)and Standard Deviation(0.000002162).

关键词： Neural networks e-commerce forecasting risk management machine learning

Microbial detoxification of metalaxyl in aquatic system

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Journal of Environmental Sciences 2008年第3期20卷 262-267页

作者： Ahmed H. Massoud Aly S. Derbalah El-sayed. B. Belal Pesticides Department Faculty of Agriculture Kafr El-Sheikh University. Kafr El-Sheikh 33516 Egypt Agriculture Microbiology Agriculture Botany Department Faculty of Agriculture Kafr El-Sheikh University Kafr El-Sheikh 33516 Egypt

Four microorganisms, Pseudomonas sp. （ER2）, Aspergillus niger （ER6）, Cladosporium herbarum （ER4） and Penicilluim sp. （ER3）, were isolated from cucumber leaves previously treated with metalaxyl using enrichment technique. These isolates were evaluated for detoxification of metalaxyl at the recommended dose level in aquatic system. The effect of pH and temperature on the growth ability of the tested isolates was also investigated by measuring the intracellular protein and mycelia dry weight for bacterial and fungal isolates, respectively. Moreover, the toxicity of metalaxyl after 28 d of treatment with the tested isolates was evaluated to confirm the complete removal of any toxic materials （metalaxyl and its metabolites）. The results showed that the optimum degree pH for the growth of metalaxyl degrading isolates （bacterial and fungal isolates） was 7. The temperature 30℃ appeared to be the optimum degree for the growth of either fungal or bacterial isolates. The results showed that Pseudomonas sp. （ER2） was the most effective isolate in metalaxyl degradation followed by Aspergillus niger （ER6）, Cladosporium herbarum （ER4） and Penicilluim sp. （ER3）, respectively. There is no toxicity of metalaxyl detected in the supematant after 28 d of treatment with Pseudomonas sp. （ER2）. The results suggest that bioremediation by Pseudomonas sp. （ER2） isolate was considered to be effective method for detoxification of metalaxyl in aqueous media.

关键词： metalaxyl biodegradation microorganisms, toxicity

Co-combustion of RDF and biomass mixture with bituminous coal:a case study of clinker production plant in Egypt

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Waste Disposal and Sustainable Energy 2021年第4期3卷 257-266页

作者： Osayed sayed Mohamed Abu‑Elyazeed Mohamed Nofal Khalaf Ibrahim Junfeng Yang Mechanical Power Engineering Department Faculty of EngineeringMatariaHelwan UniversityMasaken El-HelmiyaP.O.11718CairoEgypt School of Mechanical Engineering University of LeedsLeeds LS29JTUK

Cement clinker production in Egypt till 2013 relied mainly on fossil fuel as a primary energy ***,with multiple fossil fuel shortages,the utilization of biomass wastes was initiated by multiple cement *** the current work,and to present an industrial-scale biomass and coal co-combustion study,the utilization of multiple biomass fuels to substitute a portion of bituminous coal was studied in an Egyptian clinker production *** of biomass fuels were used to reduce the consumption of bituminous coal and to investigate the diminishing of the environmental impact of the clinker production *** current study was conducted during 8 days of the stable clinker production process by replacing 14%of bituminous coal with biomass mixtures while monitoring the major process control parameters and resulting *** results were compared to the nation’s regulations.A conclusion can be made that using biomass mixtures as alternative fuels minimized the dependency on coal as the main fuel and reduced the CO_(2)burden of the cement produc-tion *** addition,NO_(x)and SO_(2)emissions were declined while CO emissions were increased by utilizing biomass mixtures as alternative fuels;all emissions,however,were below the allowable limits stated by the Egyptian environmental ***,the heavy elements,dioxins,and furans were not changed significantly compared to those produced using coal only.

关键词： Refuse derived fuel Biomass Co-Combustion Clinker