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Robust Network Security:A Deep Learning Approach to Intrusion Detection in IoT

Computers, Materials & Continua 2024年第12期81卷 4149-4169页

作者： ammar Odeh Anas Abu Taleb Department of Computer Science Princess Sumaya University of TechnologyAmman1196Jordan

The proliferation of Internet of Things(IoT)technology has exponentially increased the number of devices interconnected over networks,thereby escalating the potential vectors for cybersecurity *** response,this study rigorously applies and evaluates deep learning models—namely Convolutional Neural Networks(CNN),Autoencoders,and Long Short-Term Memory(LSTM)networks—to engineer an advanced Intrusion Detection System(IDS)specifically designed for IoT *** the comprehensive UNSW-NB15 dataset,which encompasses 49 distinct features representing varied network traffic characteristics,our methodology focused on meticulous data preprocessing including cleaning,normalization,and strategic feature selection to enhance model performance.A robust comparative analysis highlights the CNN model’s outstanding performance,achieving an accuracy of 99.89%,precision of 99.90%,recall of 99.88%,and an F1 score of 99.89%in binary classification tasks,outperforming other evaluated models *** results not only confirm the superior detection capabilities of CNNs in distinguishing between benign and malicious network activities but also illustrate the model’s effectiveness in multiclass classification tasks,addressing various attack vectors prevalent in IoT *** empirical findings from this research demonstrate deep learning’s transformative potential in fortifying network security infrastructures against sophisticated cyber threats,providing a scalable,high-performance solution that enhances security measures across increasingly complex IoT *** study’s outcomes are critical for security practitioners and researchers focusing on the next generation of cyber defense mechanisms,offering a data-driven foundation for future advancements in IoT security strategies.

关键词： Intrusion detection system(IDS) Internet ofThings(IoT) convolutional neural network(CNN) long short-term memory(LSTM) autoencoder network security deep learning data preprocessing feature selection cyber threats

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Analysis and Control of the Vehicle Roll Dynamics Using Sum of Squares Polynomial Approach

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Journal of Systems Science & Complexity 2024年第6期37卷 2318-2346页

作者： IBEN ammar Imen DOUMIATI Moustapha TALJ Reine CHOKOR Abbas MACHMOUM Mohamed ESEO-IREENA 10 Bd Jeanneteau-CS 90717Angers49107France Institut de Recherche en Energie Electrique de Nantes Atlantique IREENA UR 464237 Boulevard de l'Universite-BP406Saint-NazaireF-44602France Sorbonne Universités Universite de Technologie de CompiegneCNRSHeudiasyc UMR 7253CS 6031960203 CompiegneFrance Continental 17 Rue Paulin Talabot31100 ToulouseFrance

The safety of vehicle travel relies on good stability performance,making vehicle motion control a vital technology in *** paper focuses on investigating the impact of roll control on vehicle performance,particularly in terms of avoiding rollover and ensuring lateral *** introducing a feedback roll moment,the roll motion can be effectively *** paper considers two roll reference generators:A static one aimed at zero roll,and a dynamic one based on the vehicle's lateral *** static roll reference generator enhances stability by employing a fixed reference,particularly beneficial during routine driving *** contrast,the dynamic roll reference generator continually adapts the roll angle reference in response to real-time vehicle dynamics and driving *** proposed reference generators can be paired with varying suspension systems—Static reference could be achieved using semi-active suspensions,while the dynamic one is integrated into advanced active suspension systems,offering heightened adaptability and *** address the roll control objectives,this paper proposes a novel sum of squares(SOS)integral polynomial tracking *** proposed controller satisfies control bounds and considers control constraints during the design *** effectiveness and robustness of the proposed control scheme are evaluated through numerical simulations using a full vehicle nonlinear model in Matlab/*** results of these simulations are compared to super-twisting sliding mode and Lyapunov-based controllers.

关键词： Active suspensions lateral stability polynomial control rollover avoidance SOS approach

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Cooling and lubrication techniques in grinding:A state-of-the-art review,applications,and sustainability assessment

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Chinese Journal of Aeronautics 2023年第7期36卷 76-113页

作者： Ahmed Mohamed Mahmoud IBRAHIM Wei LI Abdel-Hamid ISMAIL MOURAD Mohamed A.E.OMER Fadl A.ESSA Ahmed Mustafa ABD EL-NABY Mohammad S.Al SOUFI muhammad F.EZZAT ammar ElSHEIKH College of Mechanical and Vehicle Engineering Hunan UniversityChangsha 410082China Production Engineering and Mechanical Design Department Faculty of EngineeringMinia UniversityEl Minya 61519Egypt Mechanical and Aerospace Engineering Department College of EngineeringUnited Arab Emirates UniversityAl-Ain 15551United Arab Emirates Department of Production Engineering and Mechanical Design Faculty of EngineeringTanta UniversityTanta 31527Egypt Mechanical Engineering Department Faculty of EngineeringKafrelsheikh UniversityKafrelsheikh 33516Egypt Mechanical Engineering Department College of Engineering and Islamic ArchitectureUmm Al-Qura UniversityMakkah 24231Saudi Arabia Mechanical Engineering Department Faculty of EngineeringUniversity of AlbertaEdmonton T6G 2R3Canada Automotive and Tractors Engineering Department Faculty of EngineeringMinia UniversityEl Minya 61519Egypt Tokyo Institute of Technology Tokyo 152-8550Japan

Grinding technology is an essential manufacturing operation,in particular,when a component with a superfinishing and an ultra-resolution is *** the required strict quality checklist with maintaining a high level of productivity and sustainability is a substantive *** recent paper outlines the lubrication and cooling technologies and mediums that are used for ***,it provides a basis for a critical assessment of the different lubrication/cooling techniques in terms of machining outputs,environmental impact,hygiene effect,***,the paper put light on the sustainability of different cooling/lubrication *** sustainability of machining aims to get the product with the best accuracy and surface quality,minimum energy consumption,low environmental impact,reasonable economy,and minimum effect on worker’s *** paper revealed that despite some cooling/lubrication mediums like mineral oils and semisynthetic,afford sufficient lubrication or cooling,they have a significant negative impact on the environment and public *** the other hand,emulsions can overcome environmental problems but the economy and the energy consumption during grinding are still a matter of *** and vegetable oils are considered eco-friendly oils,but they suffer from a lack of thermal stability which affects their ability of efficiently *** the cooling medium with the lowest amount can achieve the goal of the economy but it may be reflected negatively on the ***,cryogenic lubrication doesn’t provide sufficient lubrication to reduce friction and hence energy *** research described in the paper is such a comprehensive compilation of knowledge regarding the machinability and machining performance under different cooling and lubrication systems that it will aid the next generation of scientists in identifying current advancements as well as potential future directions of research on ecolo

关键词： Cryogenic cooling Dry lubrication Minimum quantity lubrication Precision grinding Solid lubrication Sustainable machining Vegetable oils

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Genotypic characteristics of resistant tumors to pre-operative ionizing radiation in rectal cancer

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World Journal of Gastrointestinal Oncology 2014年第7期6卷 194-210页

作者： Zeeshan Ramzan ammar B Nassri Sergio Huerta VA North Texas Healthcare System-Dallas VA Medical Center University of Texas Southwestern Medical Center Dallas TX 75216 United States

Due to a wide range of clinical response in patients un-dergoing neo-adjuvant chemoradiation for rectal cancer it is essential to understand molecular factors that lead to the broad response observed in patients receiving the same form of *** extensive research in this field,the exact mechanisms still remain *** raging from DNA-repair to specific molecules lead-ing to cell survival as well as resistance to apoptosis have been ***,or in combination,there is no single pathway that has become clinically applicable to *** the following review,we describe the current status of various pathways that might lead to resistance to the therapeutic applications of ionizing radiation in rectal cancer.

关键词： Ionizing radiation DNA double-strand break Non-homologous end-joining pathway DNA-PKcs Ku proteins Complete pathological response Radiation therapy Apoptosis Angiogenesis

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Channel measurements and models for high-speed train wireless communication systems in tunnel scenarios: a survey

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Science China(Information Sciences) 2017年第10期60卷 107-123页

作者： Yu LIU ammar GHAZAL Cheng-Xiang WANG Xiaohu GE Yang YANG Yapei ZHANG Shandong Provincial Key Laboratory of Wireless Communication Technologies Shandong University School of Engineering and Sustainable Development De Montfort University Institute of Sensors Signals and Systems School of Engineering & Physical Sciences Heriot-Watt University Department of Electronics and Information Engineering Huazhong University of Science and Technology Key Laboratory of Wireless Sensor Network & Communication Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences

The rapid developments of high-speed trains(HSTs) introduce new challenges to HST wireless communication systems. Realistic HST channel models play a critical role in designing and evaluating HST communication systems. Due to the length limitation, bounding of tunnel itself, and waveguide effect, channel characteristics in tunnel scenarios are very different from those in other HST scenarios. Therefore, accurate tunnel channel models considering both large-scale and small-scale fading characteristics are essential for HST communication systems. Moreover, certain characteristics of tunnel channels have not been investigated sufficiently. This article provides a comprehensive review of the measurement campaigns in tunnels and presents some tunnel channel models using various modeling methods. Finally, future directions in HST tunnel channel measurements and modeling are discussed.

关键词： 5G high-speed train(HST) tunnel scenario tunnel channel measurement tunnel channel model non-stationary statistical property

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Automotive Aerodynamics Analysis Using Two Commonly Used Commercial Software

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Engineering（科研） 2019年第1期11卷 22-32页

作者： Adil Loya ammar Iqbal muhammad Tauseef Nasir Hasan Ali muhammad Zia Ullah Khan muhammad Imran Department of Mechatronics Engineering PAF Karachi Institute of Economics and Technology Karachi Pakistan Department of Mechanical Engineering COMSATS University Islamabad Sahiwal Pakistan Department of Mechanical Engineering National University of Science and Technology Islamabad Pakistan Department of Mechanical Engineering University of Engineering and Technology Lahore Faisalabad Pakistan

Aerodynamics analysis has become a mindset for high performance vehicles. This is because it provides valuable insight on a vehicle motion during different phases. There are vast varieties of software available like ANSYS Workbench, Star CCM+, Autodesk Simulation, SimFlow, FeatFlow, Autodesk Inventor etc. Amongst these softwares, Star CCM+ and ANSYS Workbench are the most widely used. Normally, it is observed that considerable users are confused in choosing the right software for CFD simulation because of a large variety of commercially available softwares. The present study provides comparative results to users of Computational Fluid Dynamics (CFD) with the driven case study. In the present case, authors chose the most commonly used CFD softwares, the ANSYS Workbench Fluent and the Star CCM+. Polyhedral meshing was applied on computer aided model of a car in both of these softwares. It has been found that coefficients of drag and lift achieved by aerodynamic analysis of a car are in a small marginal approximation between both ANSYS Workbench Fluent and Star CCM+ softwares. In the case of Star CCM+, CD was around 0.261 and CL was 0.07;however, in the case of ANSYS Workbench Fluent approximations were found to be 0.271 for CD and 0.05 for CL.

关键词： CATIA CFD ANSYS Workbench Fluent Star CCM+ Shear Stress Transport (SST) k-Omega

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Hourly and monthly variations in the surface activity patterns of Hemilepistus reaumurii in arid environments of Tunisia

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Journal of Arid Land 2018年第3期10卷 470-481页

作者： Anas AYARI Moez TOUIHRI Chedlia GHEMARI Karima NASRI-ammar Research Unit of Bio-Ecology and Evolutive Systematics Faculty of Sciences of Tunis University of Tunis El Manar

Life in desert ecosystems drives animals to adapt their surface locomotor activity according to environmental conditions. In this study, the hourly and monthly variations in the surface activity patterns of the terrestrial crustacean Hemilepistus reaumurii were investigated. The surface activity of H. reaumurii at the population scale was observed by collecting the hourly active individuals from the sunrise to the sunset of the studied day in each month of 2013 in the Bchachma locality, Tunisia. The collected active individuals were put in perspex boxes（on which we labeled the hourly time interval in which the individuals were collected） in the field and then transported to the laboratory for analysis. Individuals were counted, sexed, and measured in the laboratory. Despite desert conditions in the studied site, H. reaumurii was characterized by a diurnal surface activity, showing a bimodal pattern during the warm months（i.e., May to October）. However, it exhibited a unimodal surface activity pattern in the cold months（i.e., February, March, and November）. The surface activity was significantly correlated with sunrise and sunset. Moreover, a significant quadratic effect of temperature on the surface activity of H. reaumurii was observed. Furthermore, the study showed that the most important surface activity was recorded in March. The daily exploitation of the temporal niches was significantly different as a function of months. The body size of males was larger than that of females, and the body size of active individuals changed with months. All these behavioural changes in the surface activity represent an adaptive strategy of life in the arid environment.

关键词： diurnal activity variation pattern aboveground activity desert isopod temporal niche Hemilepistus reaumurii Tunisia

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Adoption of Improved Rice Varieties in the Global South:A Review

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Rice science 2023年第3期30卷 186-206,I0021-I0034页

作者： Julia CHECCO Fathin Ayuni AZIZAN Jaquie MITCHELL ammar Abdul AZIZ School of Agriculture and Food Sciences The University of QueenslandGatton 4343QueenslandAustralia Department of Agrotechnology Faculty of Mechanical Engineering and TechnologyUniversiti Malaysia PerlisArau 02600PerlisMalaysia

Improved rice varieties(IRVs)play a significant role in establishing food security and improving livelihood in the Global South since its introduction in the ***,the adoption of new IRVs has remained relatively *** low adoption poses a challenge to rice-producing and consuming countries as they are increasingly threatened by production shortages,malnutrition,and poor rice *** empirical studies have attempted to identify the determinants influencing the adoption of IRVs by distinguishing the characteristics between adopters and *** review showed a consensus on the important determinants influencing the adoption of IRVs in the Global *** synthesized from 99 studies suggested that variables(farm size,education,information access and farm location)examined extensively are not necessarily the most important determinants of adoption when undertaking a weighted ***,source of seed and technology-related attributes(perceived yield,maturity,ease of use,marketability and technical efficiency)are more important determinants of adoption,with determinants changing according to adoption type(probability or intensity of adoption),variety type and *** recommendations for future adoption studies include:incorporating more technology-specific variables,increasing research for overlooked regions and variety types,shifting away from predominant static analysis by capturing the dynamics of the adoption process,and considering the potential biases in *** review will facilitate the development of targeted interventions and policies that promote IRV adoption in the Global South.

关键词： technology adoption improved rice variety systematic literature review the Global South

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Prediction of Uncertainty Estimation and Confidence Calibration Using Fully Convolutional Neural Network

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Computers, Materials & Continua 2023年第5期75卷 2557-2573页

作者： Karim Gasmi Lassaad Ben ammar Hmoud Elshammari Fadwa Yahya Department of Computer Science College of Arts and Sciences at TabarjalJouf UniversityJoufSaudi Arabia College of Sciences and Humanities Prince Sattam Bin Abdulaziz UniversityAl-KharjSaudi Arabia University of Sfax SfaxTunisia Department of Information Systems College of Computer and Information SciencesJouf UniversityJoufSaudi Arabia

Convolution neural networks(CNNs)have proven to be effective clinical *** study highlighted some of the key issues within these *** is difficult to train these systems in a limited clinical image databases,and many publications present strategies including such learning ***,these patterns are known formaking a highly reliable *** addition,normalization of volume and losses of dice have been used effectively to accelerate and stabilize the ***,these systems are improperly regulated,resulting in more confident ratings for correct and incorrect classification,which are inaccurate and difficult to *** study examines the risk assessment of Fully Convolutional Neural Networks(FCNNs)for clinical image *** contributions have been made to this planned work:1)dice loss and cross-entropy loss are compared on the basis of segment quality and uncertain assessment of FCNNs;2)proposal for a group model for assurance measurement of full convolutional neural networks trained with dice loss and group normalization;And 3)the ability of the measured FCNs to evaluate the segment quality of the structures and to identify test examples outside the *** evaluate the study’s contributions,it conducted a series of tests in three clinical image division applications such as heart,brain and *** findings of the study provide significant insights into the predictive ambiguity assessment and a practical strategies for outside-distribution identification and reliable measurement in the clinical image *** approaches presented in this research significantly enhance the reliability and accuracy rating of CNNbased clinical imaging methods.

关键词： Medical image segmentation confidence calibration uncertainty estimation fully convolutional neural network

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An Automated Approach to Generate Test Cases From Use Case Description Model

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Computer Modeling in Engineering & Sciences 2019年第6期119卷 409-425页

作者： Thamer A.Alrawashed ammar Almomani Ahmad Althunibat Abdelfatah Tamimi Department of Software Engineering Alzaytoonah University of JordanAirport StreetAmmanJordan IT-department Al-Huson University CollegeAl-Balqa Applied UniversityP.O.BoxSaltJordan

Test complexity and test adequacy are frequently raised by software developers and testing ***,there is little research works at this aspect on specification-based testing at the use case description ***,this research proposes an automatic test cases generator approach to reduce the test complexity and to enhance the percentage of test ***,to support the infrastructure for performing automatic,this proposed approach refines the use cases using use case describing template and save it in the text ***,the saved file is input to the Algorithm of Control Flow Diagram(ACFD)to convert use case details to a control flow *** that,the Proposed Tool of Generating Test Paths(PTGTP)is used to generate test cases from the control flow ***,the genetic algorithm associated with transition coverage is adapted to optimize and evaluate the adequacy of such test cases.A money withdrawal use case in the ATM system is used as an ongoing case *** results show that the generated test cases achieve high coverage with an optimal test *** automatic test case generation approach is effective and ***,it could promote to use other test case coverage criteria.

关键词： Software testing test cases software specifications genetic algorithm

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