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Managing Smart Technologies with Software-Defined Networks for Routing and Security Challenges: A Survey

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Computer Systems Science & Engineering 2023年第11期47卷 1839-1879页

作者： Babangida Isyaku kamalrulnizam bin abu bakar Department of Computer Science Faculty of ComputingUniversiti Teknologi MalaysiaJohor BahruJohor81310Malaysia Department of Computer Science Faculty of Computing and Information TechnologySule Lamido UniversityP.M.B.048Jigawa StateNigeria

Smart environments offer various services,including smart cities,ehealthcare,transportation,and wearable devices,generating multiple traffic flows with different Quality of Service(QoS)*** the desired QoS with security in this heterogeneous environment can be challenging due to traffic flows and device management,unoptimized routing with resource awareness,and security *** Defined Networks(SDN)can help manage these devices through centralized SDN controllers and address these *** schemes have been proposed to integrate SDN with emerging technologies for better resource utilization and *** Defined Wireless Body Area Networks(SDWBAN)and Software Defined Internet of Things(SDIoT)are the recently introduced frameworks to overcome these *** study surveys the existing SDWBAN and SDIoT routing and security *** paper discusses each solution in detail and analyses its *** covers SDWBAN frameworks for efficient management of WBAN networks,management of IoT devices,and proposed security mechanisms for IoT and data security in *** survey provides insights into the state-of-the-art in SDWBAN and SDIoT routing with resource awareness and security ***,this study highlights potential areas for future research.

关键词： SDN WBAN IoT routing security

Optimized Identification with Severity Factors of Gastric Cancer for Internet of Medical Things

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Computers, Materials & Continua 2023年第4期75卷 785-798页

作者： kamalrulnizam bin abu bakar Fatima Tul Zuhra Babangida Isyaku Fuad A.Ghaleb Faculty of Computing Universiti Teknologi MalaysiaJohor Bahru81310Malaysia Faculty of Science and Technology Shaheed Benazir Bhutto University Sanghar CampusPakistan Faculty of Computing and Information Technology Sule Lamido UniversityKafin HausaP.M.B.048Nigeria

The Internet of Medical Things (IoMT) emerges with the visionof the Wireless Body Sensor Network (WBSN) to improve the health monitoringsystems and has an enormous impact on the healthcare system forrecognizing the levels of risk/severity factors (premature diagnosis, treatment,and supervision of chronic disease i.e., cancer) via wearable/electronic healthsensor i.e., wireless endoscopic capsule. However, AI-assisted endoscopy playsa very significant role in the detection of gastric cancer. Convolutional NeuralNetwork (CNN) has been widely used to diagnose gastric cancer based onvarious feature extraction models, consequently, limiting the identificationand categorization performance in terms of cancerous stages and gradesassociated with each type of gastric cancer. This paper proposed an optimizedAI-based approach to diagnose and assess the risk factor of gastric cancerbased on its type, stage, and grade in the endoscopic images for smarthealthcare applications. The proposed method is categorized into five phasessuch as image pre-processing, Four-Dimensional (4D) image conversion,image segmentation, K-Nearest Neighbour (K-NN) classification, and multigradingand staging of image intensities. Moreover, the performance of theproposed method has experimented on two different datasets consisting ofcolor and black and white endoscopic images. The simulation results verifiedthat the proposed approach is capable of perceiving gastric cancer with 88.09%sensitivity, 95.77% specificity, and 96.55% overall accuracy respectively.

关键词： Artificial intelligence internet of things internet of medical things wireless body sensor network wireless endoscopic capsule gastric cancer

Reliable Failure Restoration with Bayesian Congestion Aware for Software Defined Networks

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Computer Systems Science & Engineering 2023年第9期46卷 3729-3748页

作者： Babangida Isyaku kamalrulnizam bin abu bakar Wamda Nagmeldin Abdelzahir Abdelmaboud Faisal Saeed Fuad A.Ghaleb Faculty of Computing Universiti Teknologi MalaysiaJohor Bahru81310Malaysia Faculty of Computing and Information Technology Sule Lamido UniversityKafin HausaP.M.B.048Nigeria College of Computer Engineering and Sciences PrinceSattam bin Abdulaziz UniversityAl-Kharj11942Saudi Arabia Department of Information Systems King Khalid UniversityMuhayel Aseer61913Saudi Arabia Taibah University P.O.Box 344Medina41411Saudi Arabia School of Computing and Digital Technology Birmingham City UniversityBirminghamB47XGUK

SoftwareDefined Networks(SDN)introduced better network management by decoupling control and data ***,communication reliability is the desired property in computer *** frequency of communication link failure degrades network performance,and service disruptions are likely to *** network applications,such as delaysensitive applications,suffer packet loss with higher Round Trip Time(RTT).Several failure recovery schemes have been proposed to address link failure recovery issues in ***,these schemes have various weaknesses,which may not always guarantee service *** paths differ in their roles;some paths are critical because of the higher frequency *** paths frequently share links between primary and *** the affected flows after failure occurrences without investigating the path roles can lead to post-recovery congestion with packet loss and system ***,there is a lack of studies to incorporate path criticality and residual path capacity to reroute the affected flows in case of link *** paper proposed Reliable Failure Restoration with Congestion Aware for SDN to select the reliable backup path that decreases packet loss and RTT,increasing network throughput while minimizing post-recovery *** affected flows are redirected through a path with minimal risk of failure,while Bayesian probability is used to predict post-recovery *** the former and latter path with a minimal score is *** simulation results improved throughput by(45%),reduced packet losses(87%),and lowered RTT(89%)compared to benchmarking works.

关键词： SDN OpenFlow failure restoration critical path Bayesian probability

Toxicity evaluation of ZnO and TiO_2 nanomaterials in hydroponic red bean(Vigna angularis) plant:Physiology, biochemistry and kinetic transport

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Journal of Environmental Sciences 2018年第10期30卷 140-152页

作者： Shanaz Jahan Yatimah binti Alias Ahmad Farid bin abu bakar Ismail bin Yusoff Department of Geology Environmental and Earth Sciences Faculty of Science University of Malaya Department of Chemistry Faculty of Science University of Malaya University Malaya Centre for Ionic Liquids (UMCi L) University of Malaya

The toxicity and kinetic uptake potential of zinc oxide（Zn O） and titanium dioxide（TiO2）nanomaterials into the red bean（Vigna angularis） plant were investigated. The results obtained revealed that Zn O, due to its high dissolution and strong binding capacity, readily accumulated in the root tissues and significantly inhibited the physiological activity of the plant. However, TiO2 had a positive effect on plant physiology, resulting in promoted growth. The results of biochemical experiments implied that Zn O, through the generation of oxidative stress, significantly reduced the chlorophyll content, carotenoids and activity of stress-controlling enzymes. On the contrary, no negative biochemical impact was observed in plants treated with TiO2. For the kinetic uptake and transport study, we designed two exposure systems in which Zn O and TiO2 were exposed to red bean seedlings individually or in a mixture approach. The results showed that in single metal oxide treatments, the uptake and transport increased with increasing exposure period from one week to three ***, in the metal oxide co-exposure treatment, due to complexation and competition among the particles, the uptake and transport were remarkably decreased. This suggested that the kinetic transport pattern of the metal oxide mixtures varied compared to those of its individual constituents.

关键词： Metal oxides Physiological impacts Biochemical impacts Uptake kinetics Translocation Growth inhibition

Application of stem cells in tissue engineering for defense medicine

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Military Medical Research 2018年第2期5卷 140-158页

作者： Chinedu Cletus Ude Azizi Miskon Ruszymah Bt Hj Idrus Muhamad bin abu bakar Bio-artifical Organ and Regenerative Medicine Unit National Defence University of MalaysiaSungai Besi Camp57000 Kuala LumpurMalaysia Department of Physiology Pre-clinical BlockNational University of Malaysia Medical CentreJalan Yaacob LatifBandar Tun Razak56000 Kuala LumpurMalaysia

The dynamic nature of modern warfare,including threats and injuries faced by soldiers,necessitates the development of countermeasures that address a wide variety of *** engineering has emerged as a field with the potential to provide contemporary *** this review,discussions focus on the applications of stem cells in tissue engineering to address health risks frequently faced by combatants at *** development depends intimately on stem cells,the mysterious precursor to every kind of cell in the body that,with proper instruction,can grow and differentiate into any new tissue or *** reports have suggested the greater therapeutic effects of the anti-inflammatory,trophic,paracrine and immune-modulatory functions associated with these cells,which induce them to restore normal healing and tissue regeneration by modulating immune reactions,regulating inflammation,and suppressing ***,the use of stem cells holds significant promise for the treatment of many battlefield injuries and their *** applications include the treatment of injuries to the skin,sensory organs,nervous system tissues,the musculoskeletal system,circulatory/pulmonary tissues and genitals/testicles and of acute radiation syndrome and the development of novel *** new research developments in these areas suggest that solutions are being developed to reduce critical consequences of wounds and exposures suffered in *** military applications of stem cell-based therapies are already saving the lives of soldiers who would have died in previous *** that would have resulted in deaths previously now result in wounds today;similarly,today’s permanent wounds may be reduced to tomorrow’s bad memories with further advances in stem cell-based therapies.

关键词： Tissue engineering Defense medicine Stem cells War injuries

Quality of life and psychological distress in end-stage renal disease patients undergoing hemodialysis and transplantation

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World Journal of Nephrology 2024年第3期13卷 34-40页

作者： Emad A Shdaifat Firas T abu-Sneineh Abdallah M Ibrahim Community Nursing Department Imam Abdulrahman Bin Faisal UniversityDammam 1982Saudi Arabia Department of Fundamental Nursing Imam Abdulrahman Bin Faisal UniversityDammam 1982Saudi Arabia

BACKGROUND Among diverse profound impacts on patients’quality of life(QoL),end-stage renal disease(ESRD)frequently results in increased levels of depression,anxiety,and *** replacement therapies such as hemodialysis(HD)and transplantation(TX)are intended to enhance QoL,although their ability to alleviate psychological distress remains *** research posits the existence of a significant correlation between negative emotional states and QoL among ESRD patients,with varying effects observed in HD and TX *** To examine the relationship between QoL and negative emotional states(depression,anxiety,and stress)and predicted QoL in various end-stage renal replacement therapy patients with *** This cross-sectional study included HD or TX patients in the Eastern Region of Saudi *** 36-item Short Form Survey and Depression Anxiety Stress Scale(DASS)was used for data collection,and correlation and regression analyses were *** The HD and TX transplantation groups showed statistically significant inverse relationships between QoL and DASS *** patients with high anxiety levels and less education scored low on the physical component summary(PCS).In addition,the results of the mental component summary(MCS)were associated with reduced *** with older transplant patients,TX patients’PCS scores were lower,and depression,stress,and negative working conditions were highly correlated with MCS *** The findings of this study revealed notable connections between well-being and mental turmoil experienced by individuals undergoing HD and *** PCS of HD patients is affected by heightened levels of anxiety and lower educational attainment,while the MCS of transplant patients is influenced by advancing age and elevated stress *** insights will contribute to a more comprehensive understanding of patient support.

关键词： Anxiety Depression End-stage renal disease Hemodialysis Patient Reported Outcome Measures Psychological distress Quality of life Renal replacement therapy outcomes Saudi Arabia Stress

Fireworks Optimization with Deep Learning-Based Arabic Handwritten Characters RecognitionModel

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Computer Systems Science & Engineering 2024年第5期48卷 1387-1403页

作者： Abdelwahed Motwakel Badriyya B.Al-onazi Jaber S.Alzahrani Ayman Yafoz Mahmoud Othman abu Sarwar Zamani Ishfaq Yaseen Amgad Atta Abdelmageed Department of Computer and Self Development Prince Sattam bin Abdulaziz UniversityAlKharj16278Saudi Arabia Department of Language Preparation Arabic Language Teaching InstitutePrincess Nourah bint Abdulrahman UniversityP.O.Box 84428Riyadh11671Saudi Arabia Department of Industrial Engineering College of Engineering at AlqunfudahUmm Al-Qura UniversityMakkah24211Saudi Arabia Department of Information Systems Faculty of Computing and Information TechnologyKing Abdulaziz UniversityJeddah21589Saudi Arabia Department of Computer Science Faculty of Computers and Information TechnologyFuture University in EgyptNew Cairo11835Egypt

Handwritten character recognition becomes one of the challenging research *** studies were presented for recognizing letters of various *** availability of Arabic handwritten characters databases was *** a quarter of a billion people worldwide write and speak *** historical books and files indicate a vital data set for many Arab nationswritten in ***,Arabic handwritten character recognition(AHCR)has grabbed the attention and has become a difficult topic for pattern recognition and computer vision(CV).Therefore,this study develops fireworks optimizationwith the deep learning-based AHCR(FWODL-AHCR)*** intention of the FWODL-AHCR technique is to recognize the distinct handwritten characters in the Arabic *** initially pre-processes the handwritten images to improve their quality of ***,the RetinaNet-based deep convolutional neural network is applied as a feature extractor to produce feature ***,the deep echo state network(DESN)model is utilized to classify handwritten ***,the FWO algorithm is exploited as a hyperparameter tuning strategy to boost recognition *** simulations in series were performed to exhibit the enhanced performance of the FWODL-AHCR *** comparison study portrayed the supremacy of the FWODL-AHCR technique over other approaches,with 99.91%and 98.94%on Hijja and AHCD datasets,respectively.

关键词： Arabic language handwritten character recognition deep learning classification parameter tuning

Utilization of microwave steam pyrolysis to produce biochar for thermal energy storage

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Waste Disposal and Sustainable Energy 2022年第4期4卷 335-341页

作者： Wahap bin abu bakar Peter Nai Yuh Yek Kah Yein Cheong Augustine Chioma Affam Chee Chung Wong Rock Keey Liew Yie Hua Tan Su Shiung Lam Centre for Research of Innovation and Sustainable Development University of Technology SarawakNo.1Jalan University96000SibuMalaysia Centre on Technological Readiness and Innovation in Business Technopreneurship(CONTRIBUTE) University of Technology Sarawak96000SibuSarawakMalaysia NV Western PLT No.208BSecond FloorMacalister Road10400GeorgetownPenangMalaysia Department of Chemical and Energy Engineering Faculty of Engineering and ScienceCurtin University MalaysiaCDT 25098009MiriSarawakMalaysia Higher Institution Centre of Excellence(HICoE) Institute of Tropical Aquaculture and Fisheries(AKUATROP)Universiti Malaysia Terengganu21030 Kuala NerusTerengganuMalaysia

Microwave steam pyrolysis(MSP)is an innovative thermochemical approach to converting biomass into high-quality biochar using steam to improve the dielectric heating of microwave *** shows high fixed carbon and carbon contents at a maximum temperature of 550℃in 10 *** MSP achieved a heating rate of 112℃/min from 200℃to 400℃to produce biochar ***,the thermal properties of biochar in microwave heating were investigated in this study to explore its potential as a microwave heat-absorbent *** is able to perform volumetric and controllable heating to the ***,biochar shows good microwave heat absorbency,storing and transferring heat *** temperature profile of three different sizes of biochar was investigated to examine the efficiency of biochar in heat absorption from microwave *** was found that the powder form of biochar showed a higher heat transfer rate of 40℃/min and a low cooling rate of 7.5℃/*** presented results are useful for evaluating the application of biochar as a promising medium for heat storage systems.

关键词： Microwave Steam Pyrolysis Biochar Thermal Storage

Comparative assessment of maximum power point tracking procedures for photovoltaic systems

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Green Energy & Environment 2017年第1期2卷 5-17页

作者： Mohammed Aslam Husain abu Tariq Salman Hameed M.Saad bin Arif Abhinandan Jain Department of Electrical Engineering Aligarh Muslim University Department of Electronics Engineering Aligarh Muslim University

The fast growing demands and increasing awareness for the environment, PV systems are being rapidly installed for numerous ***, one of the important challenges in utilizing a PV source is the maximum power harnessing using various maximum power point tracking techniques available. With the large number of MPPT techniques, each having some merits and demerits, confusion is always there for their proper selection. Discussion on various proposed procedures for maximum power point tracking of photovoltaic array has been done. Based on different parameters analysis of MPPT techniques is carried out. This assessment will serve as a suitable reference for selection, understanding different ways and means of MPPT.

关键词： Maximum power point tracking(MPPT) Photovoltaic(PV) Solar Perturb and observe Optimization