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Ensemble Voting-Based Anomaly Detection for a Smart Grid Communication Infrastructure

Intelligent Automation & Soft Computing 2023年第6期36卷 3257-3278页

作者： hend alshede Laila Nassef Nahed Alowidi Etimad Fadel Department of Computer Science Faculty of Computing and Information TechnologyKing Abdulaziz UniversityJeddah21589Saudi Arabia Self-Development Skills Department Common First Year DeanshipKing Saud UniversityRiyadh12211Saudi Arabia

Advanced Metering Infrastructure(AMI)is the metering network of the smart grid that enables bidirectional communications between each consumer’s premises and the provider’s control *** massive amount of data collected supports the real-time decision-making required for diverse *** communication infrastructure relies on different network types,including the *** makes the infrastructure vulnerable to various attacks,which could compromise security or have devastating ***,traditional machine learning solutions cannot adapt to the increasing complexity and diversity of *** objective of this paper is to develop an Anomaly Detection System(ADS)based on deep learning using the CIC-IDS2017 ***,this dataset is highly imbalanced;thus,a two-step sampling technique:random under-sampling and the Synthetic Minority Oversampling Technique(SMOTE),is proposed to balance the *** proposed system utilizes a multiple hidden layer Auto-encoder(AE)for feature extraction and dimensional *** addition,an ensemble voting based on both Random Forest(RF)and Convolu-tional Neural Network(CNN)is developed to classify the multiclass attack *** proposed system is evaluated and compared with six different state-of-the-art machine learning and deep learning algorithms:Random Forest(RF),Light Gradient Boosting Machine(LightGBM),eXtreme Gradient Boosting(XGboost),Convolutional Neural Network(CNN),Long Short-Term Memory(LSTM),and bidirectional LSTM(biLSTM).Experimental results show that the proposed model enhances the detection for each attack class compared with the other machine learning and deep learning models with overall accuracy(98.29%),precision(99%),recall(98%),F_(1) score(98%),and the UNDetection rate(UND)(8%).

关键词： Advanced metering infrastructure smart grid cyberattack ensemble voting anomaly detection system CICIDS2017

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Modeling Rogowski Coils for Monitoring Surge Arrester Discharge Currents

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Computer Systems Science & Engineering 2022年第8期42卷 439-449页

作者： Nehmdoh A.Sabiha hend I.Alkhammash Department of Electrical Engineering Faculty of EngineeringMenoufia University32511Shebin ElkomEgypt Department of Electrical Engineering College of EngineeringTaif University21944TaifSaudi Arabia

Rogowski coils(RCs)are widely used to measure power or high frequency currents based on their *** this paper,two types of RCs that are circular(traditional)and cylindrical shapes wound using wire covered by varnish are *** construction is carried out to be suitable for monitoring the discharge current of the surge arrester installed in the distribution *** high frequency RC modeling for both types considering transfer function is ***-integrating for both types is ***,the experimental tests using function generator for both coils are carried out to identify the parameters of the transfer function representing the introduced *** measured signals for current and induced voltages are denoised for the parameter identification *** denoised process is achieved using the MATLAB code‘wdenoise’while the parameters are estimated using the system identification *** of the proposed model is achieved using experimental results for the two *** sensitivity of the two coils is investigated based on the induced output *** application concerning the two coils for monitoring the discharge current of the surge arrester is *** results confirm the accuracy of the introduced RC model,as well as the performance of the cylindrical shape,is better than the traditional *** simulation is carried out using MATLAB and ATPDraw programs.

关键词： Rogowski coil surge arrester discharge current frequency response parameters dentification denoised signal

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Assessment of family physicians’knowledge of childhood autism

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Family Medicine and Community Health 2017年第4期5卷 266-274页

作者： hend Mikhail Salama Department of Family Medicine Faculty of MedicineSuez Canal UniversityIsmailiaEgypt

Objective:This study aimed to assess the knowledge of family physicians regarding child-hood ***:The study is a one-way cross-sectional descriptive study,conducted between Janu-ary and March *** study involved 70 family physicians who were working and/or studying for a master degree in the School of Medicine,Suez Canal *** researcher collected the sociodemographic characteristics,and then the participants completed the Knowledge about Child-hood Autism among Healthcare Workers(KCAHW)***:The total KCAHW score was 11.2±3.5(mean±standard deviation),the domain with the highest score was domain 1(5.6±1.8),and family physicians with previous experience had a higher mean score than physicians with no previous experience(12.9±2.7 and 10.7±3.5 respectively).In addition,there was a significant positive correlation between the mean KCAHW score and both the duration of practicing and earlier experience of ***:There is a lack of knowledge of autism among family physicians;they need more training on autism to increase their awareness to improve early detection and intervention so as to improve the quality of life and care of children with autism.

关键词： Autism knowledge family physicians

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Epigenetic regulation of insulin-like growth factor axis in hepatocellular carcinoma

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World Journal of Gastroenterology 2016年第9期22卷 2668-2677页

作者： hend Mohamed El Tayebi Ahmed Ihab Abdelaziz The Molecular Pathology Research Group Department of Pharmacology and Toxicology Faculty of Pharmacy and Biotechnology German University in Cairo

The insulin-like growth factor(IGF) signaling path-way is an important pathway in the process of hepa-tocarcinogenesis,and the IGF network is clearly dysregulated in many cancers and developmental *** hepatocellular carcinoma(HCC),only a minority of patients are eligible for curative treatments,such as tumor resection or liver ***,there is a high recurrence of HCC after surgical tumor *** research efforts have focused on targeting IGF axis members in an attempt to find therapeutic options for many health *** this review,we shed lights on the regulation of members of the IGF axis,mainly by micro RNAs in *** RNAs in HCC attempt to halt the aberrant expression of the IGF network,and a single micro RNA can have multiple downstream targets in one or more signaling *** micro RNAs is a relatively new approach for identifying an efficient radical cure for HCC.

关键词： Hepatocellular carcinoma Insulin-like growth factors Insulin-like growth factor receptors Epigenetics microRNAs

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Behind the curtain of non-coding RNAs; long non-coding RNAs regulating hepatocarcinogenesis

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World Journal of Gastroenterology 2018年第5期24卷 549-572页

作者： Aya El Khodiry Menna Afify hend M El Tayebi Genetic Pharmacology Research Group Clinical Pharmacy Unit department of Pharmacology and toxicology faculty of Pharmacy and biotechnology German University in Cairo

Hepatocellular carcinoma(HCC) is one of the most common and aggressive cancers worldwide. HCC is the fifth common malignancy in the world and the second leading cause of cancer death in Asia. Long non-coding RNAs(lncRNAs) are RNAs with a length greater than 200 nucleotides that do not encode proteins. lncRNAs can regulate gene expression and protein synthesis in several ways by interacting with DNA, RNA and proteins in a sequence specific manner. They could regulate cellular and developmental processes through either gene inhibition or gene activation. Many studies have shown that dysregulation of lncRNAs is related to many human diseases such as cardiovascular diseases, genetic disorders, neurological diseases, immune mediated disorders and cancers. However, the study of lncRNAs is challenging as they are poorly conserved between species, their expression levels aren't as high as that of m RNAs and have great interpatient variations. The study of lncRNAs expression in cancers have been a breakthrough as it unveils potential biomarkers and drug targets for cancer therapy and helps understand the mechanism of pathogenesis. This review discusses many long non-coding RNAs and their contribution in HCC, their role in development, metastasis, and prognosis of HCC and how to regulate and target these lncRNAs as a therapeutic tool in HCC treatment in the future.

关键词： tumor suppressor genes oncogenes Long non-coding RNAs proliferation hepatocellular carcinoma metastasis

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Portal vein tumor thrombosis in hepatocellular carcinoma patients: Is it the end?

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Liver Research 2024年第3期8卷 141-151页

作者： Walaa Abdelhamed hend Shousha Mohamed El-Kassas Endemic Medicine Department Sohag UniversitySohagEgypt Endemic Medicine Department Faculty of MedicineCairo UniversityCairoEgypt Endemic Medicine Department Faculty of MedicineHelwan UniversityCairoEgypt Liver Disease Research Center College of MedicineKing Saud UniversityRiyadhSaudi Arabia

Hepatocellular carcinoma(HCC)is the sixth most prevalent form of cancer globally and the third leading cause of cancer-related *** incidence of portal vein tumor thrombosis(PVTT)in HCC patients is 21%at one year and 46%at three *** presence of PVTT has consistently been associated with a poor prognosis for HCC patients over the past ***,HCC prognosis is influenced not only by the presence of PVTT but also by the degree or extent of ***,there is a lack of global consensus or established protocols regarding the optimal management of HCC with associated *** Barcelona Clinic for Liver Cancer classifies HCC patients with PVTT as stage C,indicating an advanced stage,and limiting treatment recommendations for these patients to systemic *** recent years,there has been an increase in the availability of therapeutic options for HCC patients with *** modalities include systemic therapy,transarterial chemoembolization,surgical resection,stereotactic body radiotherapy,transarterial radioembolization,and liver *** ideal therapy for each patient necessitates a multidisciplinary *** review article presents the latest updates in managing HCC patients with PVTT.

关键词： Hepatocellular carcinoma(HCC) Portal vein tumor thrombosis(PVTT) Staging Systemic therapies Locoregional treatment Immunotherapy

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Efficacy of oral magnesium therapy in the treatment of chronic constipation in spastic cerebral palsy children:a randomized controlled trial

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World Journal of Pediatrics 2021年第1期17卷 92-98页

作者： Sahar M.A.Hassanein Shaymaa M.Deifallah hend A.Bastawy Pediatric Department Pediatric Neuropsychiatry UnitFaculty of MedicineAin Shams UniversityAbbassia SquareP.O.Box 11381CairoEgypt Ministry of Health CairoEgypt

Background Constipation is a common problem in children with spastic cerebral palsy(sCP)with a prevalence that reaches 75%.We hypothesized that treating constipation in those children will improve their health and shorten time spent in daily *** aim was to evaluate the efficacy and safety of oral magnesium sulfate for treating chronic constipation in children with *** A prospective,double-blinded randomized control trial was carried out involving 100 children aged 2-12 years with sCP(level Ⅲ-Ⅴ of the Gross Motor Functional Classification system)and chronic *** were followed up in the Pediatric neurology clinic,Children's hospital,Ain Shams University,May 2017-January *** intervention group(O-Mg)received oral magnesium sulfate 1 mL/kg/day daily for 1 month compared to the *** measures were constipation improvement and decrease in bowel evacuation time after 1 *** Initially,weekly bowel movements,constipation scores and stool consistency were comparable in both *** 1 month of regular administration of oral magnesium sulfate,the constipation score,stool frequency and consistency improved compared to the placebo group(P<0.001).Effective safe treatment was achieved in 31(68%)and 4(9.5%)patients in the O-Mg and placebo groups,respectively(RR,2.95;95%CI 2.0-4.5)(P<0.001).Painful bowel evacuation attempts spent by mothers decreased from 25(55.6%)of the cases initially to 10(22%)cases after one month in the O-Mg group(P=0.001).In contrast,in the placebo group,the decrease went from 21(50%)cases initially to 18(42.9%)after 1 month and was not significant(P=0.5).Conclusions Oral magnesium sulfate seems effective in alleviating chronic constipation and pain experience in children with ***,saving maternal time spent in daily bowel evacuation attempts.

关键词： Bristol stool consistency scale Constipation scale Gross Motor Functional Classification system Magnesium sulfate Painful bowel evacuation Spasticity

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Effects of moisture damage on asphalt mixtures

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Journal of Traffic and Transportation Engineering(English Edition) 2020年第5期7卷 600-628页

作者： hend Ali Omar Nur Izzi MdYusoff Muhammad Mubaraki Halil Ceylan Department of Civil Engineering University of TripoliTripoliLibya Department of Civil Engineering Universiti Kebangsaan MalaysiaBangi 43600Malaysia Faculty of Engineering Jazan UniversityJazanKingdom of Saudi Arabia Department of Civil Construction and Environmental EngineeringIowa State UniversityAmesIA 50011USA

The reduction in the ability of bitumen to bond with the aggregate surface due to the infiltration of moisture has been recognised for years, and this deterioration phenomenon is called moisture damage. In general, the loss of bonding between bitumen and aggregate shortens the service life of the top layer of the pavement. Many investigations have been conducted to understand the mechanisms of moisture damage due to the loss of bonding strength between bitumen and aggregate and to find ways to improve and strengthen the bond to mitigate the effect of moisture. This paper reviews the extensive literature on the loss of bitumen-aggregate bonding strength due to moisture damage in asphalt *** general description of the theories and mechanisms that explain the effect of the thermodynamic, chemical, physical and mechanical characteristics of the bitumen and aggregate on the bonding phenomenon are discussed in this paper. In addition, the causes of and contributing factors to moisture damage and methods to improve the bond between bitumen and aggregates are also discussed. Moreover, a description of the test methods that can be used to evaluate moisture damage in poorly bonded and compacted mixtures are also presented. Special attention is given to a well-known method, known as the pulloff test, which has been successfully used to evaluate aggregate-binder bond strength, both for laboratory and in-situ tests. This includes the test methods, the factors that affect the bonding strength results and their correlation with other test method. A review of the failure mode of bitumen under the pull-off loading test is discussed in the final section of this paper.

关键词： Road engineering Bitumen Aggregate Asphalt mixture Moisture damage

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Short-and long-term predictions of novel corona virus using mathematical modeling and artificial intelligence methods

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International Journal of Modeling, Simulation, and Scientific Computing 2021年第3期12卷 136-149页

作者： hend I.Alkhammash Sattam Al Otaibi Nasim Ullah Department of Electrical Engineering College of Engineering TAIF University P.O.Box 11099 21944 KSA

This paper proposes spread prediction of novel corona virus outbreak using different compartmental models and artificial intelligence(AI)*** data for several months is collected from the Ministry of Health(MOH)website,Kingdom of Saudi Arabia and two compartmental models,namely SIR(susceptible,infectious,recovered)and SEIRD(susceptible,exposed,infectious,recovered,dead)are utilized to best fit the *** methods are well suited for short-and long-term stochastic *** in view the inherent advantages of AI methods,adaptive neuro-fuzzy inference system(ANFIS)models are trained using the collected data to replicate the dynamic behavior of the COVID-19 spread in Kingdom of Saudi *** prediction comparison for COVID-19 spread is made between the compartmental and ANFIS models for both short-and long-term forecasts of the experimental *** the presented results,ANFIS-based models show superior performance as compared to compartmental models.

关键词： Novel corona virus compartmental models artificial intelligence ANFIS

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Patterns of liver profile disturbance in patients with COVID-19

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World Journal of Clinical Cases 2022年第7期10卷 2063-2071页

作者： hend Ibrahim Shousha Ahmed Ramadan Rania Lithy Mohamed El-Kassas Department of Endemic Medicine Faculty of MedicineCairo UniversityCairo 12556Egypt Department of Endemic Medicine Faculty of MedicineHelwan UniversityCairo 11795Egypt

Fever and cough are the most common clinical symptoms of coronavirus disease 2019(COVID-19),but complications(such as pneumonia,respiratory distress syndrome,and multiorgan failure)can occur in people with additional ***-19 may be a new cause of liver disease,as liver profile disturbance is one of the most common findings among *** molecular mechanism underlying this phenomenon,however,is still *** this paper,we review the most current research on the patterns of change in liver profile among patients with COVID-19,the possible explanation for these findings,and the relation to pre-existing liver disease in these patients.

关键词： Liver functions COVID-19 Liver profile Alanine transaminase aspartate transaminase Bilirubin

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