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Conflict Resolution Strategy in Handover Management for 4G and 5G Networks

Computers, Materials & Continua 2022年第9期72卷 5215-5232页

作者： Abdulraqeb Alhammadi Wan Haslina Hassan Ayman a.el-Saleh Ibraheem Shayea Hafizal Mohamad Yousef Ibrahim Daradkeh Communication Systems and Networks Research Lab Malaysia-Japan International Institute of TechnologyUniversiti Teknologi Malaysia54100Kuala LumpurMalaysia College of Engineering A’sharqiyah University(ASU)Ibra400Oman Department of electronics and Communication Engineering Faculty of Electrical and Electronics EngineeringIstanbul Technical University(ITU)Istanbul34467Turke Faculty of Engineering and Built Environment Universiti Sains Islam MalaysiaBandar Baru Nilai71800Malaysia Department of Computer Engineering and Networks College of Engineering at Wadi AddawasirPrince Sattam Bin Abdulaziz UniversityAl Kharj11991KSA

Fifth-generation(5G)cellular networks offer high transmission rates in dense urban ***,a massive deployment of small cells will be required to provide wide-area coverage,which leads to an increase in the number of handovers(HOs).Mobility management is an important issue that requires considerable attention in heterogeneous networks,where 5G ultra-dense small cells coexist with current fourth-generation(4G)*** mobility robustness optimization(MRO)and load balancing optimization(LBO)functions have been introduced in the 3GPP standard to address HO problems,non-robust and nonoptimal algorithms for selecting appropriate HO control parameters(HCPs)still exist,and an optimal solution is subjected to compromise between LBO and MRO ***,HO decision algorithms become *** paper proposes a conflict resolution technique to address the contradiction between MRO and LBO *** proposed technique exploits received signal reference power(RSRP),cell load and user speed to adapt HO margin(HM)and time to trigger(TTT).Estimated HM and TTT depend on a weighting function and HO type which is represented by user status during *** proposed technique is validated with other existing algorithms from the *** results demonstrate that the proposed technique outperforms existing algorithms overall performance *** proposed technique reduces the overall average HO ping-pong probability,HO failure rate and interruption time by more than 90%,46%and 58%,respectively,compared with the other schemes overall speed scenarios and simulation time.

关键词： Mobility management handover 5G heterogeneous networks

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Synthesis, Spectroscopic and Antimicrobial Investigations of Scandium(Ⅲ) Complexes with Four Kinds of Sulfa Drugs

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光谱学与光谱分析 2020年第3期40卷 985-990页

作者： Moamen S.Refat Abeer a.el-Habeeb Chemistry Department Faculty of ScienceTaif UniversityP.O.Box888Al-HawiahTaif 21974Saudi Arabia Department of Chemistry Faculty of SciencePort SaidPort Said UniversityEgypt Colege of Science Princess Nourah Bint Abdulrahman UniversityDepartment of ChemistryKSA

Herein,this article was focused on the synthesis and discussed the spectroscopic characterizations of four new scandium(Ⅲ)sulfa-drug *** nomenclature and symbols of these drugs were sulfadimidine(sulp-1),sulfanilamide(sulp-2),sulfamethoxazole(sulp-3)and sulfadiazine(sulp-4).The microanalytical and spectroscopic analyses which utilized in this study were micro-analyses,magnetic,FT-IR,UV-Vis *** mid infrared spectra deduced that the four sulfa-drug chelates acts as a bidentate chelates with scandium(Ⅲ)ion via two nitrogen atoms of-NH2-Ar and-NH-SO2 ***,the FTIR spectra of Sc3+complexes referred to the existed of new medium weak bands in the range of 500~400 cm^-1 due to stretching vibration bands ofν(M-N).The elemental analysis technique confirmed the 1∶2 stoichiometry between Sc3+ions and sulp ligand with molecular formula[Sc(sulp)2(Cl)2]·*** room temperature,the results of magnetic measurements for the Sc(Ⅲ)complexes indicated that all of the synthesized complexes have a diamagnetic character with octahedral *** electronic spectra of the free sulfa-drug ligands shows band at 275 and 310 nm which are intraligand charge transfer *** electronic sbsorption spectra of the Sc3+complexes were recorded using DMSO *** spectra of complexes display bands within 275~388 nm,which attributed toπ-π*,n-π*and charge-transfer M-LCT electronic transitions,which strongly favors the octahedral geometry around Sc(Ⅲ)metal ions.1HNMR spectra of complexes referred to the downfield proton shifts of the-NH2 and NHSO2 groups,which supported the place of *** half maximal inhibitory concentration(IC50)of the ScⅢcomplexes was assessed against the human hepato cellular carcinoma(HepG-2)tumor cell line.

关键词： Sulfa-drugs Sc~Ⅲ Spectroscopic Chelation Nano-particles Antimicrobial

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An Efficient One-pot Synthesis of Certain Stereoselective Spiro[pyrazole-4,5′-isoxazoline]-5-one Derivatives:In vitro Evaluation of Antitumor Activities,Molecular Docking and In silico ADME Predictions

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Chemical Research in Chinese Universities 2022年第4期38卷 1073-1082页

作者： Ghadah F.ALJOHANI Fatma A.a.el-HAG Mohamed S.BEKHEIT Ewies F.EWIES May a.el-MANAWATY Chemistry Department College of ScienceTaibah UniversityP.O.Box 30002Code 14177Al-Madinah Al MunawarahSaudi Arabia Department of Chemistry of Natural and Microbial Products National Research CentreDokkiP.O.Box 12622GizaEgypt Pesticide Chemistry Department National Research CentreDokkiP.O.Box 12622GizaEgypt Organometallic and Organometalloid Chemistry Department National Research CentreDokkiP.O.Box 12622GizaEgypt Department of Pharmacognosy National Research CentreDokkiP.O.Box 12622GizaEgypt

Alibrary of novel spiro[pyrazole-4,5′-isoxazoline]-5-one derivatives were designed and synthesized using a concise and efficient one-pot reaction protocol through 1,3-dipolar cycloaddition between 4-benzylidene-3-methyl-1-phenyl-^(1)H-pyrazol-5(4H)-one and *** synthesized derivatives were elucidated and characterized based on their spectroscopic data,including infrared spectrometry(IR),^(1)H NMR,^(13)C NMR,and elemental and mass spectral *** synthesized compounds were evaluated for their antitumor inhibition potency against four human cancer cell lines,including human prostatic adenocarcinoma(PC3),human colorectal carcinoma(HCT116),human liver hepatocellular carcinoma(HepG2)and breast adenocarcinoma(MCF7).The outcomes were compared with the standard reference drug *** the synthesized chlorooximes,compounds 6d and 6e were the most active compounds on all cell *** spiro[pyrazole-4,5′-isoxazoline]-5-one derivatives 7a and 7c were active on the HepG2 liver cancer cell *** comparison,compounds 7f and 7g were modera.ely active on the MCF7 cell *** structure-activity relationship was explored for the synthesized ***,in silico analysis of physicochemical,adsorption,distribution,metabolism,excretion and toxicity(ADMET)properties were done to determine the potential capacity of drug *** docking study onto the epidermal growth factor(EGF)tyrosine kinase receptor(3POZ)was done for the most active compounds to validate the reliability of in vitro anticancer screenings.

关键词： Spiroisoxazoline Pyrazole Chlrooxime 1,3-Dipolar cycloaddition Antitumor Molecular docking

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Exponentiated Generalized Inverse Flexible Weibull Distribution:Bayesian and Non-Bayesian Estimation Under Complete and TypeⅡCensored Samples with Applications

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Communications in Mathematics and Statistics 2022年第3期10卷 413-434页

作者： M.el-Morshedy M.S.eliwa a.el-Gohary Ehab M.Almetwally R.el-Desokey Department of Mathematics College of Science and Humanities in Al-KharjPrince Sattam Bin Abdulaziz UniversityAl-Kharj 11942Saudi Arabia Department of Mathematics Faculty of ScienceMansoura UniversityMansoura 35516Egypt Faculty of Business Administration Delta University of Science and TechnologyMansouraEgypt Faculty of Graduate Studies for Statistical Research Cairo UniversityGiza 12613Egypt

In this paper,a new 4-parameter exponentiated generalized inverse flexible Weibull distribution is *** of its statistical properties are *** aim of this paper is to estimate the model parameters via several approaches,na.ely,maximum likelihood,maximum product spacing and *** to Bayesian approach,several techniques are used to get the Bayesian estimators,na.ely,standard error function,Linex loss function and entropy loss *** estimation herein is based on complete and censored *** Chain Monte Carlo simulation is used to discuss the behavior of the estimators for each ***,two real data sets are analyzed to obtain the flexibility of the proposed model.

关键词： Weibull distribution Hazard rate function Maximum likelihood estimation Maximum product spacing estimation Bayesian estimation Censored samples Simulation

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Synthesis and Spectroscopic Investigations of Four New Y(Ⅲ), Ge(Ⅳ), W(Ⅵ) and Si(Ⅳ) Penicillin Antibiotic Drug Complexes

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光谱学与光谱分析 2019年第9期39卷 2982-2988页

作者： Abeer a.el-Habeeb Moamen S.Refat College of Science Princess Nourah Bint Abdulrahman University Department of Chemistry Riyadh 11671 Saudi Arabia Chemistry Department Faculty of Science Taif University P.O. Box 888 Al-Hawiah Taif 21974 Saudi Arabia Department of Chemistry Faculty of Science Port Said Port Said University Egypt

A four new penicillinate complexes were prepared through the chemical interactio ns of penicillin potassium salt (Pin) with YCl 3, GeCl 4, WCl 6 and SiCl 4 m etal ions. These metal complexes were characterized using spectroscopic techniqu es (e.g. 1H-NMR, infrared, electronic UV-Vis) as well as elemental, cond uctivity, and magnetic measurements. The molar conductance values were highly, s howing their electrolytic nature. The magnetic and electronic study strongly rec ommends the octahedral geometry of all penicillinate complexes. A monomeric stru ctures of Pin complexes are proposed with octahedral coordinated metals ions. Th e metal ions are coordinated toward Pin as tridentate ligand through the amide a nd β-lactam carbonyls and a carboxylate group from penicillin. The in vitro antimicrobial activity of all the complexes, at concentrations in μg·mL^-1 , was screened against four bacterial pathogens, na.ely, Bacillus subtilis , Escherichia coli, Pseudomonas aeruginosa , and Staphylococcus aureus , and two kinds of fungi Aspergillus flavus and Candida albicans showed better activi ty compared to parent drug and control drug. The anti-cancer inhibition of the tungsten(Ⅵ) complex was assessed against the human hepato cellular carcinoma (H epG-2) tumor cell line with IC50 value is 646 μg·mL^-1 .

关键词： Penicillin Yttrium Germanium Tungsten Si licon FTIR Complexation Biological

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Promising supercapacitor electrodes based immobilization of proteins onto macroporous Ni foam materials

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Journal of Energy Chemistry 2015年第1期24卷 31-38页

作者： Mohamed Khairy Sherif a.el-Safty National Institute for Materials Science (NIMS) 1-2-1 Sengen Tsukubalshi Ibaraki-ken 305-0047 Japan Chemistry Department Faculty of Science Sohag UniversityEgypt Graduate School for Advanced Science and Engineering Waseda University 3-4-1 Okubo Shinjuku-ku Tokyo 169-8555 Japan

Immobilizing biocomponents on solid surfaces is a critical step in the development of new devices for future biological, medical, and elec- tronic applications. Therefore, numerous integrated films were recently developed by immobilizing different proteins or enzymes on electrode surfaces. In this work, hemeproteins were sa.ely immobilized onto macroporous nickel-based electrodes while maintaining their functionality. Such modified electrodes showed interesting pseudo-capacitive behavior. Among hemeproteins, hemoglobin （Hb） film has a higher electro- chemical performance and greater charge/discharge cycling stability than myoglobin （Mb） and cytochrome C （CytC）. The heme group in an alkaline medium could induce the formation of superoxides on the electrode surface. These capacitive features of hemeprotein-Ni electrode were related to strong binding sites between hemeproteins and porous Ni electrode, the accumulation of superoxide or radicals on the Ni sur- face, and facile electron transfer and electrolyte diffusion through the three-dimensional macroporous network. Thus, these new protein-based supercapacitors have potential use in free-standing platform technology for the development of implantable energy-storage devices.

关键词： whemeprotein nickel foam pseudocapacitor macroporous peroxide alkaline medium

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Molecular and serological prevalence of Toxoplasma gondii in pregnant women and sheep in Egypt

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Asian Pacific Journal of Tropical Medicine 2017年第10期10卷 996-1001页

作者： Hany M.Ibrahim Azza H.Mohamed Ahmed a.el-Sharaawy Hend E.el-Shqanqery Department of Zoology Faculty of ScienceMenoufia UniversityShebin El-KomEgypt Clinical Pathology Unit National Liver InstituteMenoufia UniversityEgypt

Objective: To investigate molecular and serological prevalence of Toxoplasma gondii(***) in pregnant women and sheep in ***: Blood samples collected from healthy 364 pregnant women and 170 sheep were investigated for *** antibodies and parasitemia using highly specific and sensitive surface antigen(TgSAG2) based enzyme linked immunosorbent assay(elISA)and real time-polymerase chain reaction(RT-PCR).Results: Overall prevalence of *** was 51.76%, 17.65% in sheep, 33.79%, 11.81%in pregnant women, using elISA and RT-PCR *** differences in *** prevalence were observed on the basis of contact with cats or soil in pregnant women using either RT-PCR or *** pregnant women, a significant increase was detected in aged and those eating under-cooked mutton using simultaneous elISA/***: Consumption of under-cooked infected mutton is an important source of human infection and the combination of the two assays provide accurate and precise data during infection.

关键词： Toxoplasmosis RT-PCR elISA Pregnant-women Sheep

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Integrative analysis of the metabolome and transcriptome reveals seed germination mechanism in Punica granatum L.

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Journal of Integrative Agriculture 2021年第1期20卷 132-146页

作者： FU Fang-fang PENG Ying-shu WANG Gui-bin Yousry a.el-KASSABY CAO Fu-liang Co-Innovation Center for Sustainable Forestry in Southern China Nanjing Forestry UniversityNanjing 210037P.R.China Department of Forest and Conservation Sciences Faculty of ForestryThe University of British ColumbiaVancouverB.C.V6T 1Z4Canada

We conducted an integrative system biology of metabolome and transcriptome profile analyses during pomegranate(Punica granatum L.) seed germination and utilized a weighted gene co-expression network analysis(WGCNA) to describe the functionality and complexity of the physiological and morphogenetic processes as well as gene expression and metabolic differences during seed germination stages. In total, 489 metabolites were detected, including 40 differentially accumulated metabolites. The transcriptomic analysis showed the expression of 6 984 genes changed significantly throughout the whole germination process. Using WGCNA, we identified modules related to the various seed germination stages and hub genes. In the initial imbibition stage(stage 1), the pivotal genes involved in RNA transduction and the glycolytic pathway were most active, while in the sprouting stage(stage 4), the pivotal genes were involved in multiple metabolic pathways. In terms of secondary metabolic pathways, we found flavonoid 4-reductase genes of anthocyanin biosynthesis pathway are most significantly affected during pomegranate seed germination, while the flavonol synthase gene was mainly involved in the regulation of isoflavonoid biosynthesis.

关键词： seed germination stages weighted gene co-expression network analysis(WGCNA) metabolome transcriptome flavonoid pathway

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Establishment of an in vitro micropropagation protocol for Boscia senegalensis (Pers.) *** Poir.

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2011年第4期12卷 303-312页

作者： Mutasim M.KHALAFALLA Hussien M.DAFFALLa.eltayb ABDelLATEF elsadig AGABNA Hany a.el-SHEMY Commission for Biotechnology and Genetic Engineering National Centre for Research Desertification Research Institute National Centre for Research Faculty of Agriculture Research Park (FARP) and Biochemistry Department Faculty of AgricultureCairo University

This report describes in vitro micropropagation of Boscia senegalensis,so-called famine foods,that helped the people in Darfur and Kordofan,Sudan survive during the 1984-1985 *** types of explants prepared from green mature zygotic embryos were cultured on Murashige and Skoog (MS) medium augmented with 1-5 mg/L 6-benzyladenine (BA).The highest number of shoots per explant (14.3±0.9) was achieved on MS medium supplemented with 3 mg/L BA,while the highest shoot length [(3.5±0.4) cm] was obtained with 1 mg/L *** shoot cluster,when subcultured to its same medium,significantly increased the rate of shoot multiplication by the end of the third *** maximum mean number of shoots per explant (86.5±3.6) was produced after three multiplication cycles on 3 mg/L BA-supplemented *** vitro induced shoots were excised and rooted on half strength MS medium fortified with 0.25 mg/L indole-3-butyric acid (IBA) to obtain complete ***-regenerated plantlets obtained in vitro for the first time,were hardened and 95% survived under greenhouse conditions.

关键词： Boscia senegalensis Famine food Mature embryo Organogenesis

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Wind Power Prediction Based on Machine Learning and Deep Learning Models

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Computers, Materials & Continua 2023年第1期74卷 715-732页

作者： Zahraa Tarek Mahmoud Y.Shams Ahmed M.elshewey el-Sayed M.el-kenawy Abdelhameed Ibrahim Abdelaziz A.Abdelhamid Mohamed a.el-dosuky Faculty of Computers and Information Computer Science DepartmentMansoura UniversityMansoura35561Egypt Faculty of Artificial Intelligence Kafrelsheikh UniversityKafrelsheikh33511Egypt Faculty of Computers and Information Computer Science DepartmentSuez UniversitySuezEgypt Department of Communications and electronics Delta Higher Institute of Engineering and TechnologyMansoura35111Egypt Faculty of Artificial Intelligence Delta University for Science and TechnologyMansoura35712Egypt Computer Engineering and Control Systems Department Faculty of EngineeringMansoura UniversityMansoura35516Egypt Department of Computer Science Faculty of Computer and Information SciencesAin Shams UniversityCairo11566Egypt Department of Computer Science College of Computing and Information TechnologyShaqra University11961Saudi Arabia Department of Computer Science Arab East CollegesRiyadh13544Saudi Arabia

Wind power is one of the sustainable ways to generate renewable *** recent years,some countries have set renewables to meet future energy needs,with the primary goal of reducing emissions and promoting sustainable growth,primarily the use of wind and solar *** achieve the prediction of wind power generation,several deep and machine learning models are constructed in this article as base *** regression models are Deep neural network(DNN),k-nearest neighbor(KNN)regressor,long short-term memory(LSTM),averaging model,random forest(RF)regressor,bagging regressor,and gradient boosting(GB)*** addition,data cleaning and data preprocessing were performed to the *** dataset used in this study includes 4 features and 50530 *** accura.ely predict the wind power values,we propose in this paper a new optimization technique based on stochastic fractal search and particle swarm optimization(SFSPSO)to optimize the parameters of LSTM *** evaluation criteria were utilized to estimate the efficiency of the regression models,na.ely,mean absolute error(MAE),Nash Sutcliffe Efficiency(NSE),mean square error(MSE),coefficient of determination(R2),root mean squared error(RMSE).The experimental results illustrated that the proposed optimization of LSTM using SFS-PSO model achieved the best results with R2 equals 99.99%in predicting the wind power values.

关键词： Prediction of wind power data preprocessing performance evaluation

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