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Ensemble Deep Learning Based Air Pollution Prediction for Sustainable Smart Cities

Computer Systems Science & Engineering 2024年第3期48卷 627-643页

作者： Maha Farouk Sabir Mahmoud Ragab Adil O.Khadidos Khaled H.Alyoubi alaa O.Khadidos Information Systems Department Faculty of Computing and Information TechnologyKing Abdulaziz UniversityJeddah21589Saudi Arabia Information Technology Department Faculty of Computing and Information Technology King Abdulaziz UniversityJeddah21589Saudi Arabia 3Department of MathematicsFaculty of ScienceAl-Azhar UniversityNaser CityCairo11884Egypt Center of Research Excellence in Artificial Intelligence and Data Science King Abdulaziz UniversityJeddahSaudi Arabia

Big data and information and communication technologies can be important to the effectiveness of smart *** on the maximal attention on smart city sustainability,developing data-driven smart cities is newly obtained attention as a vital technology for addressing sustainability ***-time monitoring of pollution allows local authorities to analyze the present traffic condition of cities and make *** to air pollution occurs a main environmental problem in smart city *** effect of the deep learning(DL)approach quickly increased and penetrated almost every domain,comprising air pollution ***,this article develops a new Coot Optimization Algorithm with an Ensemble Deep Learning based Air Pollution Prediction(COAEDL-APP)system for Sustainable Smart *** projected COAEDL-APP algorithm accurately forecasts the presence of air quality in the sustainable smart city *** achieve this,the COAEDL-APP technique initially performs a linear scaling normalization(LSN)approach to pre-process the input *** air quality prediction,an ensemble of three DL models has been involved,namely autoencoder(AE),long short-term memory(LSTM),and deep belief network(DBN).Furthermore,the COA-based hyperparameter tuning procedure can be designed to adjust the hyperparameter values of the DL *** simulation outcome of the COAEDL-APP algorithm was tested on the air quality database,and the outcomes stated the improved performance of the COAEDL-APP algorithm over other existing systems with maximum accuracy of 98.34%.

关键词： Sustainability smart cities air pollution prediction ensemble learning coot optimization algorithm

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Evaluating pediatric ureteropelvic junction obstruction:Dynamic magnetic resonance urography vs renal scintigraphy 99mtechnetium mercaptoacetyltriglycine

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World Journal of Radiology 2024年第3期16卷 49-57页

作者： Yousuf Al-Shaqsi Matthieu Peycelon Annabel Paye-Jaouen Elisabeth Carricaburu Anca Tanase Christine Grapin-Dagorno alaa El-Ghoneimi Department of Pediatric Surgery Sultan Qaboos University HospitalMuscat 123Oman Service de Chirurgie Viscérale et Urologie Pédiatrique Hôpital Universitaire Robert-DebréAssistance-Publique Hôpitaux de ParisParis 75019France Centre de Références Maladies Rares Malformations Rares des Voies Urinaires(MARVU)Paris 97019France Facultéde Médecine Universitéde ParisParis 75006France Service d’Imagerie Pédiatrique Hôpital Universitaire Robert-DebréAssistance-Publique Hôpitaux de ParisParis 75019France UniversitéParis 13 Sorbonne Paris CitéParis 75013France

BACKGROUND Ureteropelvic junction obstruction(UPJO)is a common congenital urinary tract disorder in *** can be diagnosed as early as in utero due to the presence of hydronephrosis or later in life due to symptomatic *** To evaluate the discrepancy between dynamic contrast-enhanced magnetic resonance urography(dMRU)and scintigraphy 99m-technetium mercaptoacetyltriglycine(MAG-3)for the functional evaluation of *** Between 2016 and 2020,126 patients with UPJO underwent surgery at Robert Debré*** these,83 received a prenatal diagnosis,and 43 were diagnosed during *** of the 126 patients underwent surgery based on the clinical situation and postnatal ultrasound findings without undergoing functional imaging *** renal function was evaluated preoperatively using scintigraphy MAG-3(n=28),dMRU(n=53),or both(n=40).In this study,we included patients who underwent surgery for UPJO and scintigraphy MAG-3+dMRU but excluded those who underwent only scintigraphy MAG-3 or *** patients were divided into groups A(10%discrepancy).We examined the discrepancy in split renal function between the two modalities and investigated the possible risk *** The split renal function between the two kidneys was compared in 40 patients(28 boys and 12 girls)using scintigraphy MAG-3 and *** renal function,as determined using both modalities,showed a difference of10%in 9 *** of the relative renal function using dMRU revealed an excellent correlation coefficient with renal scintigraphy MAG-3 for both *** Our findings demonstrated that dMRU is equivalent to scintigraphy MAG-3 for evaluating split renal function in patients with UPJO.

关键词： Uteropelvic junction obstruction Scintigraphy 99m-technetium mercaptoacetyltriglycine Magnetic resonance imaging Dynamic contrast-enhanced magnetic resonance urography

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基于动态语料库的阿拉伯语报纸年度特色词探究——以沙特阿拉伯《利雅得报》为例

语言学研究

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语言学研究 2024年第1期 166-180页

作者： alaa Mamdouh Akef 王莹莹杨尔弘北京大学 100871 北京语言大学 100083

本文借鉴中国对流行语的监测和盘点工作,定义和提取阿拉伯语年度特色词,以期通过历年年度特色词的动态变化来观测一个阿拉伯国家的风云变幻。本文首先针对阿拉伯语的语言特点,定义了“年度特色词”,进而提出结合搭配词定量分析的年度特... 详细信息

本文借鉴中国对流行语的监测和盘点工作,定义和提取阿拉伯语年度特色词,以期通过历年年度特色词的动态变化来观测一个阿拉伯国家的风云变幻。本文首先针对阿拉伯语的语言特点,定义了“年度特色词”,进而提出结合搭配词定量分析的年度特色词提取方法;最终按照时间顺序提取出沙特阿拉伯《利雅得报》2005—2017年共13年的年度特色词,并以主题的形式梳理出这个国家在政治、经济、军事、外交、反恐以及女权等方面的重要事件,从中感知沙特这13年来历时两位君主所经历的社会发展变革。

关键词：阿拉伯语特色词流行语语言监测语料库语言学

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Investigation on high-volume fly ash pastes modified with micro-size metakaolin subjected to high temperatures

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Journal of Central South University 2020年第1期27卷 231-241页

作者： alaa M RASHAD Building Materials Research and Quality Control Institute Housing & Building National Research Center (HBRC) Civil Engineering Department College of engineering Shaqra University

Portland cement(PC) containing high-volume fly ash(HVFA) is usually used to obtain economical and more sustainable merits, but these merits suffer from dramatically low compressive strength especially at early ages. In this work, the possibility of using micro-size metakaolin(MSK) particles to improve the compressive strength of HVFA paste before and after subjecting to high temperatures was studied. To produce HVFA paste, cement was partially substituted with 70% fly ash(FA), by weight. After that, FA was partially substituted with MSK at ratios fluctuating from 5% to 20% with an interval of 5%, by weight. The effect of MSK on the workability of HVFA mixture was measured. After curing, specimens were subjected to different high temperatures fluctuating from 400 to 1000 ℃ with an interval of 200 ℃ for 2 h. The results were analyzed by different techniques named X-ray diffraction(XRD), thermogravimetry(TGA) and scanning electron microscopy(SEM). The results showed that the incorporation of MSK particles into HVFA mixture exhibited a negative effect on the workability and a positive effect on the compressive strength before and after firing.

关键词： high-volume fly ash micro-size metakaolin high-temperature property workability remaining compressive strength

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An Efficient Security Solution for Industrial Internet of Things Applications

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Computers, Materials & Continua 2022年第8期72卷 3961-3983页

作者： alaa Omran Almagrabi Department of Information Systems Faculty of Computing and Information TechnologyKing Abdulaziz UniversityJeddahKingdom of Saudi Arabia

The Industrial Internet of Things(IIoT)has been growing for presentations in industry in recent *** for the IIoT has unavoidably become a problem in terms of creating safe *** to continual needs for new functionality,such as foresight,the number of linked devices in the industrial environment *** of fewer signatories gives strong authentication solutions and prevents trustworthy third parties from being publicly certified among available encryption *** this blockchain-based endpoint protection platform(BCEPP)has been proposed to validate the network policies and reduce overall latency in isolation or hold endpoints.A resolver supports the encoded model as an input;network functions can be optimized as an output in an infrastructure *** configuration of the virtual network functions(VNFs)involved fulfills network *** output ensures that the final service is supplied at the least cost,including processing time and network *** to the findings of this comparison,our design is better suited to simplified trust management in IIoT ***,the experimental results show the adaptability and resilience of our suggested confidence model against behavioral changes in hostile settings in IIoT *** experimental results show that our proposed method,BCEPP,has the following,when compared to other methods:high computational cost of 95.3%,low latency ratio of 28.5%,increased data transmitting rate up to 94.1%,enhanced security rate of 98.6%,packet reception ratio of 96.1%,user satisfaction index of 94.5%,and probability ratio of 33.8%.

关键词： Industrial internet of things(IIoT) blockchain trusted third parties endpoint verification

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A Deep CNN-LSTM-Based Feature Extraction for Cyber-Physical System Monitoring

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Computers, Materials & Continua 2023年第8期76卷 2079-2093页

作者： alaa Omran Almagrabi Department of Information Systems Faculty of Computing and Information TechnologyKing Abdulaziz UniversityJeddah21589Saudi Arabia

A potential concept that could be effective for multiple applications is a“cyber-physical system”(CPS).The Internet of Things(IoT)has evolved as a research area,presenting new challenges in obtaining valuable data through environmental *** existing work solely focuses on classifying the audio system of CPS without utilizing feature *** study employs a deep learning method,CNN-LSTM,and two-way feature extraction to classify audio systems within *** primary objective of this system,which is built upon a convolutional neural network(CNN)with Long Short Term Memory(LSTM),is to analyze the vocalization patterns of two different species of *** has been demonstrated that CNNs,when combined with mel-spectrograms for sound analysis,are suitable for classifying ambient ***,the data is augmented and ***,the mel spectrogram features are extracted through two-way feature ***,Principal Component Analysis(PCA)is utilized for dimensionality reduction,followed by Transfer learning for audio feature ***,the classification is performed using the CNN-LSTM *** methodology can potentially be employed for categorizing various biological acoustic objects and analyzing biodiversity indexes in natural environments,resulting in high classification *** study highlights that this CNNLSTM approach enables cost-effective and resource-efficient monitoring of large natural *** dissemination of updated CNN-LSTM models across distant IoT nodes is facilitated flexibly and dynamically through the utilization of CPS.

关键词： Cyber-physical system internet of things feature extraction,classification CNN principal component analysis mel spectrograms monitoring deep learning

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A classification-based privacy-preserving decision-making for secure data sharing in Internet of Things assisted applications

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Digital Communications and Networks 2022年第4期8卷 436-445页

作者： alaa Omran Almagrabi A.K.Bashir Department of Information Systems Faculty of Computing and Information Technology(FCIT)King Abdulaziz UniversityJeddah21589Saudi Arabia Department of Computing and Mathematics Manchester Metropolitan UniversityManchesterUK

The introduction of the Internet of Things(IoT)paradigm serves as pervasive resource access and sharing platform for different real-time *** resource availability,access,and allocation provide a better quality of user experience regardless of the application type and ***,privacy remains an open issue in this ubiquitous sharing platform due to massive and replicated data *** this paper,privacy-preserving decision-making for the data-sharing scheme is *** scheme is responsible for improving the security in data sharing without the impact of replicated resources on communicating *** this scheme,classification learning is used for identifying replicas and accessing granted resources *** on the trust score of the available resources,this classification is recurrently performed to improve the reliability of information *** user-level decisions for information sharing and access are made using the classification of the resources at the time of *** proposed scheme is verified using the metrics access delay,success ratio,computation complexity,and sharing loss.

关键词： Classification learning Data mining IoT Privacy-preserving Resource replication

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Effect of Cyclic Stress Reduction on the Creep Characteristics of AZ91 Magnesium Alloy

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Acta Metallurgica Sinica(English Letters) 2015年第8期28卷 1065-1073页

作者： alaa Farag Abd El-Rehim Physics Department Faculty of Science King Khalid University Physics Department Faculty of Education Ain Shams University

The creep deformation behavior of aged AZ91 magnesium alloy under the cyclic stress reduction has been investigated in the temperature range 353–383 K. The microstructural evolution of the AZ91 magnesium alloy at different heat treatment conditions has been studied using optical microscopy and scanning electron microscopy. The minimum strain rate, e_min, was found to be higher under cyclic stress reduction condition than that under static creep condition for the same maximum stress. Cyclic creep acceleration is interpreted using the interaction of moving dislocations with the existing b-phase（Mg17Al12） precipitates. The mean value of the activation energy of secondary creep stage was found to be equal to that quoted for lattice self-diffusion of magnesium mechanism.

关键词： Magnesium alloys Microstructure Cyclic stress Dislocations

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Cost Estimate and Input Energy of Floor Systems in Low Seismic Regions

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Computers, Materials & Continua 2022年第5期71卷 2159-2173页

作者： Sayed Mahmoud alaa Salman Department of Civil and Construction Engineering College of EngineeringImam Abdulrahman Bin Faisal UniversityP.O.Box 1982Dammam 31441Kingdom of Saudi Arabia

Reinforced concrete(RC)as a material is most commonly used for buildings *** floor systems are available following the structural and architectural *** current research study provides cost and input energy comparisons of RC office buildings of different floor *** solid,ribbed,flat plate and flat slab systems are considered in the *** models in three-dimensional using extended threedimensional analysis of building systems(ETABS)and in two-dimensional using slab analysis by the finite element(SAFE)are developed for analysis *** and design using both software packages and manual calculations are employed to obtain the optimum sections and reinforcements to fit cities of low seismic intensities for all the considered building *** ground motion records of low peak ground acceleration(PGA)levels are used to excite the models to measure the input *** cost estimating system is adopted to categorize building components according to 12 ***,Microsoft(MS)Project is utilized to identify the construction cost and duration of each building *** study shows that floor system significantly causes changes in the input energy to *** addition,the slight increase in the PGA increases the amount of input energy particularly flat plate *** cost of the flat plate system that the flat slab system is of higher value as compared to ribbed and conventional slab *** use of drop panels increases this value as ***,the estimated cost of the ribbed slab system exceeds that of conventional system.

关键词： Uniformat system office buildings floor systems energy response cost estimating

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Information security through controlled quantum teleportation networks

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Digital Communications and Networks 2020年第4期6卷 463-470页

作者： Hala Hamdoun alaa Sagheer Center for Artificial Intelligence and RObotics(CAIRO) Department of Computer ScienceAswan UniversityAswanEgypt Department of Computer Science College of Computer Science and Information TechnologyKing Faisal UniversitySaudi Arabia

Information security is the backbone of current intelligent systems,such as the Internet of Things(IoT),smart grids,and Machine-to-Machine(M2M)*** increasing threat of information security requires new models to ensure the safe transmission of information through such ***,quantum systems have drawn much attention since they are expected to have a significant impact on the research in information *** paper proposes a quantum teleportation scheme based on controlled multi-users to ensure the secure information transmission among *** teleportation is an original key element in a variety of quantum information tasks as well as quantum-based technologies,which plays a pivotal role in the current progress of quantum computing and *** the proposed scheme,the sender transmits the information to the receiver under the control of a third user or ***,we show that the efficiency of the proposed scheme depends on the properties of the transmission channel and the honesty of the *** with various teleportation scheme presented recently in the literature,the most important difference in the proposed scheme is the possibility of suspicion about the honesty of the controller and,consequently,taking proper precautions.

关键词： Information security Machine-to-machine communication Intelligent secure systems Quantum teleportation Quantum networks

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