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Trust-based Intelligent Scheme for Mitigating Black Hole Attacks in IoT

Journal of Harbin Institute of Technology(New Series) 2024年第3期31卷 39-50页

作者： Feroz Khan A.B Weslin D Dilli Babu M mohammed Muzaffar Hussain Department of Computer Science Syed Hameedha Arts and Science CollegeKilakarai 623806Tamil NaduIndia Department of Information Technology Mohamed Sathak AJ College of EngineeringSiruseriChennai 603103India Department of Information Technology Panimalar Engineering CollegeChennai 600123India Department of Information Technology C.Abdul Hakeem College of Engineering and TechnologyMelvisharam 632509India

Internet of Things(IoT)networks are characterized by a multitude of wireless,interconnected devices that can dynamically join or exit the network without centralized administration or fixed infrastructure for *** multipath routing in IoT networks can improve data transmission reliability and load balancing by establishing multiple paths between source and destination nodes,these networks are susceptible to security threats due to their wireless *** security solutions developed for conventional networks are often ill-suited to the unique challenges posed by IoT *** response to these challenges,this paper proposes the integration of the Ad hoc On-demand Multipath Distance Vector(AOMDV)routing protocol with a trust model to enhance network *** findings from this research demonstrate the successful fusion of AOMDV with a trust model,resulting in tangible improvements in network *** assessment of trustworthiness bolsters both security and routing capabilities in IoT *** trust model plays a crucial role in mitigating black hole attacks in IoT networks by evaluating the trustworthiness of nodes and helping in the identification and avoidance of malicious nodes that may act as black *** results validate the efficacy of the proposed trust-based routing mechanism in achieving its *** plays a pivotal role in decision-making and in the creation of secure distribution *** assessing the trustworthiness of nodes,both network security and routing efficiency can be *** effectiveness of the proposed trust-based routing mechanism is scrutinized through simulations,offering insights into its potential advantages in terms of improved network security and routing performance in the context of the IoT.

关键词： Mobile ad-hoc network(MANET) routing Ad hoc On-demand Multipath Distance Vector(AOMDV) trust model security

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Catalytic methanation reaction over alumina supported cobalt oxide doped noble metal oxides for the purification of simulated natural gas

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燃料化学学报 2012年第7期40卷 822-830页

作者： Wan Azelee Wan Abu Bakar Rusmidah Alil abdul aziz abdul Kadir Salmiah Jamal Mat Rosid Nurul Shafeeqa Mohammad Department of Chemistry Faculty of Science Universiti Teknologi Malaysia 81310 Skudai Johor Malaysia Faculty of Petroleum and Renewable Energy Engineering Universiti Teknologi Malaysia 81310 Skudai Johor Malaysia

A series of alumina supported cobalt oxide based catalysts doped with noble metals such as ruthenium and platinum were prepared by wet impregnation *** variables studied were difference ratio and calcination ***/Co(10∶90)/Al2O3 catalyst calcined at 700 ℃ was found to be the best catalyst which able to convert 70.10% of CO2 into methane with 47% of CH4 formation at maximum temperature studied of 400 ℃.X-ray diffraction analysis showed that this catalyst possessed the active site Co3O4 in face-centered cubic and PtO2 in the orthorhombic phase with Al2O3 existed in the cubic *** to the FESEM micrographs,both fresh and spent Pt/Co(10∶90)/Al2O3 catalysts displayed small particle size with undefined *** Adsorption analysis showed that 5.50% reduction of the total surface area for the spent Pt/Co(10∶90)/Al2O3 ***,Energy Dispersive X-ray analysis(EDX) indicated that Co and Pt were reduced by 0.74% and 0.14% respectively on the spent Pt/Co(10∶90)/*** using FT-IR and TGA-DTA analysis revealed the existence of residual nitrate and hydroxyl compounds on the Pt/Co(10∶90)/Al2O3 catalyst.

关键词： natural gas cobalt oxide noble metal catalyst methanation reaction

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Beneficial effects of date palm fruits on neurodegenerative diseases

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Neural Regeneration Research 2016年第7期11卷 1071-1072页

作者： Musthafa Mohamed Essa mohammed Akbar mohammed abdul Sattar Khan Department of Food Science and Nutrition College of Agriculture and Marine SciencesSultan Qaboos University Ageing and Dementia Research Group Sultan Qaboos University Section of Molecular Pharmacology and Toxicology Laboratory of Membrane Biochemistry and BiophysicsNational Institute on Alcohol Abuse and AlcoholismNational Institutes of Health Department of Anesthesia Critical Care and Pain MedicineShriners Hospitals for Children~?Massachusetts General Hospital and Harvard Medical School

Date palm tree（Phoenix dactylifera L.）is an important crop,which is cultivated in many countries extending from North Africa to the Middle East,including many of the GCC（Gulf Cooperation Council）Countries（Allaith... 详细信息

关键词： fruits Phoenix climatic cultivated Africa neuronal Middle amyloid poorly occlusion

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Drainage vs. non-drainage after cholecystectomy for acute cholecystitis:a retrospective study

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The Journal of Biomedical Research 2014年第3期28卷 240-245页

作者： mohammed A Bawahab Walid M Abd El Maksoud Saeed A Alsareii Fahad S Al Amri Hala F Ali abdul Rahman Nimeri abdul Rahman M Al Amri Adel A Assiri mohammed I abdul aziz General Surgery Department Faculty of MedicineKing Khalid University General Surgery Department Faculty of MedicineNajran University General Surgery Department Sheikh Khalifa Medical CityAbu DhabiP.O.51900United Arab Emirates General Surgery Abha Private Hospital

Many surgeons practice prophylactic drainage after cholecystectomy without reliable evidence,this study was conducted to answer the question whether to drain or not to drain after cholecystectomy for acute calculous cholecystitis.A retrospective review of all patients who had cholecystectomy for acute cholecystitis in Aseer Central Hospital,Abha,Saudi Arabia,was conducted from April 2010 to April *** were extracted from hospital case *** data included clinical presentation,routine investigations and liver function *** data included excessive adhesions,bleeding,bile leak,and drain *** cases such as pericholecystic collections,mucocele and empyema were also *** who needed therapeutic drainage were *** data included hospital stay,volume of drained fluid,time of drain removal,and drain site *** study included 103 patients allocated into two groups;group A（n = 38） for patients with operative drain insertion and group B（n = 65） for patients without drain *** number of patients with preoperative diagnosis of acute non-complicated cholecystitis was significantly greater in group B（80%） than group A（36.8%）（P 〈 0.001）.Operative time was significantly longer in group *** patients who were converted from laparoscopic to open cholecystectomy were in group *** analysis revealed that hospital stay was significantly（P 〈 0.001） longer in patients with preoperative *** was no added benefit for prophylactic drain insertion after cholecystectomy for acute calculous cholecystitis in non-complicated or in complicated cases.

关键词： acute cholecystitis routine drainage cholecystectomy subhepatic collection

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Enhanced Water Quality Control Based on Predictive Optimization for Smart Fish Farming

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Computers, Materials & Continua 2023年第6期75卷 5471-5499页

作者： Azimbek Khudoyberdiev mohammed abdul Jaleel Israr Ullah DoHyeun Kim Department of Applied Informatics Kimyo International University in TashkentTashkent100121Uzbekistan Department of Computer Science Virtual University of PakistanLahore54000Pakistan Department of Computer Engineering Jeju National UniversityJeju63243Korea

The requirement for high-quality seafood is a global challenge in today’s world due to climate change and natural resource *** of Things(IoT)based Modern fish farming systems can significantly optimize seafood production by minimizing resource utilization and improving healthy fish *** objective requires intensive monitoring,prediction,and control by optimizing leading factors that impact fish growth,including temperature,the potential of hydrogen(pH),water level,and feeding *** paper proposes the IoT based predictive optimization approach for efficient control and energy utilization in smart fish *** proposed fish farm control mechanism has a predictive optimization to deal with water quality control and efficient energy consumption *** farm indoor and outdoor values are applied to predict the water quality parameters,whereas a novel objective function is proposed to achieve an optimal fish growth environment based on predicted *** logic control is utilized to calculate control parameters for IoT actuators based on predictive optimal water quality parameters by minimizing energy *** evaluate the efficiency of the proposed system,the overall approach has been deployed to the fish tank as a case study,and a number of experiments have been carried *** results show that the predictive optimization module allowed the water quality parameters to be maintained at the optimal level with nearly 30%of energy efficiency at the maximum actuator control rate compared with other control levels.

关键词： Smart fish farming internet of things(IoT) predictive optimization objective function fuzzy logic control(FLC)

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Identity Governance Framework for Privileged Users

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Computer Systems Science & Engineering 2022年第3期40卷 995-1005页

作者： Mansour Hammoud Alruwies Shailendra Mishra mohammed abdul Rahman AlShehri Department of Information Technology College of Computer and Information SciencesMajmaah UniversityAl-Majmaah11952Saudi Arabia Department of Computer Engineering College of Computer and Information SciencesMajmaah UniversityMajmaah11952Saudi Arabia

Information technology companies have grown in size and recognized the need to protect their valuable *** a result,each IT application has its authentication mechanism,and an employee needs a username and *** the number of applications increased,as a result,it became increasingly complex to manage all identities like the number of usernames and passwords of an *** identities had to be retrieved by *** the identities and the access rights associated with those identities had to be protected by an *** couldn’t even capture such access rights because they couldn’t verify things like privacy and *** management can help solve this *** concept behind identity management is to centralize identity management and manage access identity centrally rather than multiple applications with their authentication and authorization *** this research work,we develop governance and an identity management framework for information and technology infrastructures with privileged access management,consisting of cybersecurity policies and *** results show the efficiency of the framework compared to the existing information security *** integrated identity and access management and privileged access management enable organizations to respond to incidents and facilitate *** can automate use cases that manage privileged accounts in the real world.

关键词： Privileged access management(PAM) lightweight directory access protocol(LDAP) identity management access control cyber-attack

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Arbuscular mycorrhizal fungal association in Asteraceae plants growing in the arid lands of Saudi Arabia

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Journal of Arid Land 2015年第5期7卷 676-686页

作者： Partha P DHAR abdul A AL-QARAWI mohammed A U MRIDHA Plant Production Department College of Food and Agricultural Sciences King Saud University

The present research was undertaken to explor the possibility of arbuscular mycorrhizal （AM） associa- tion with Asteraceae plants in the arid lands of Saudi Arabia （AI-Ghat, Buraydah, Thumamah and Huraymila）. AM fungal colonization in the roots, spore numbers in the rhizosphere soil, fungal species diversity and correlation between AM properties and soil properties were determined. The highest colonization was in Conyza bonariensis （65%） from AI-Ghat, Anthemis cotula （52%） from Buraydah and C. bonariensis （53%） from Thumamah. The lowest was in Vernonia schimperi （41%） from AI-Ghat, Pulicaria undulata （25%） from Buraydah, Acanthospermum his- pidum （34%） from Thumamah, Asteriscus graveolens （22%） and V. schimperi （22%） from Huraymila. Vesicular and arbuscular colonization were also presented in all plant species examined. The number of spores were 112-207 in AI-Ghat, 113-133 in Buraydah, 87-148 in Thumamah and 107-158 in Huraymila. Funneliformis mosseae, Glomus etunicatum, G. fasciculatum and G aggregatum were identified. Relative frequency of AM fungal species varied widely and was irrespective of location and plant species. Diversity index varied with the rhizosphere soils of dif- ferent plant species at various locations. Soil properties varied with locations and no distinct correlations were ob- served among the soil properties, root colonization and the number of spores. The results of the present study specified the association of AM fungi in different plants of Asteraceae and its significance in the ecological func- tioning of annual plants in the punitive environments of the rangelands in Saudi Arabia.

关键词： arbuscular mycorrhizal fungi arid land Asteraceae biodiversity colonization Saudi Arabia

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Tribological evaluation of refined,bleached and deodorized palm stearin using four-ball tribotester with different normal loads

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2012年第8期13卷 633-640页

作者： Chiong Ing TIONG Yahya AZLI mohammed Rafiq abdul KADIR Samion SYAHRULLAIL School of Postgraduate Studies Universiti Teknologi Malaysia81310 UTM SkudaiJohorMalaysia Faculty of Electrical Engineering Universiti Teknologi Malaysia81310 UTM SkudaiJohorMalaysia Faculty of Biomedical Engineering & Health Science Universiti Teknologi Malaysia81310 UTM SkudaiJohorMalaysia Faculty of Mechanical Engineering Universiti Teknologi Malaysia81310 UTM SkudaiJohorMalaysia

The effects of the mechanical factors with applied loads on the tribological performance of refined,bleached and deodorised(RBD) palm stearin(PS) were studied using a four-ball *** the RBD PS results were simultaneously compared with the additive-free paraffinic mineral oil(PMO).The experiments were carried out using different loads with a constant speed in order to gain a better understanding of the mechanical processes that occurred during the *** each experiment,the temperature was increased to 75 °C and was run for 1 *** a mechanical system,lubricant plays an important role in reducing wear and *** exists as a semi-solid at room temperature after the fractionation process from oil *** to the increasing rate of pollution to the environment,vegetable oil was chosen as the test lubricant with regard to its *** advantages of vegetable oil are that it is more easily harvestable and non-toxic compared to petroleum-based oil,which made it a suitable *** the experiment,RBD PS is found to have a better friction constraint reduction compared with additive-free PMO.

关键词： Palm stearin (PS) Four-ball tribotester Paraffinic mineral oil (PMO) Friction coefficient

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Hematological Alterations in an Eastern Sudanese Chronic Kidney Disease Patient Population

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Open Journal of Urology（泌尿学期刊） 2024年第6期 359页

作者： mohammed Omer Abaker Gibreel Sundus Kamal Ibrahim Wijdan Abdel aziz Hassan Manar Yahia Mahjoub Leyla mohammed Kheir Hamid Hibatellah Majzoub Abbas Nuha Fouzi mohammed

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Interaction of cetyltrimethylammonium bromide with cefixime trihydrate drug at different temperatures and compositions: Effect of different electrolytes

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Chinese Journal of Chemical Engineering 2019年第8期27卷 1895-1903页

作者： Marzia Rahman Md.Anamul Hoque Malik abdul Rub mohammed abdullah Khan Department of Chemistry Jahangirnagar UniversitySavarDhaka 1342Bangladesh Chemistry Department Faculty of ScienceKing Abdulaziz UniversityJeddah 21589Saudi Arabia Center of Excellence for Advanced Materials Research King Abdulaziz UniversityJeddah 21589Saudi Arabia

Herein,conductivity measurements have been carried out to explore the interaction between cetyltrimethylammonium bromide(CTAB,a cationic surfactant) and antibiotic drug(cefixime trihydrate(CMT)) in water and also in occurrence of inorganic salts(NaCl,Na2 SO4 and Na3 PO4) over the temperature range of 303.15-323.15 K with an interval of 5 *** all cases,two critical micelle concentrations(c^*) were achieved for the CMT-surfactant *** of CMT drug to CTAB solution decreases the values of c^* which indicates the interaction between CMT and *** values of c^* for CMT-CTAB mixture in the presence of salts are lower in magnitude compared to the aqueous medium which indicates that micellization of the CMT-CTAB mixed system is favorable in salt *** values of △Gm^0 were obtained to be negative indicating the spontaneity of the micellization process and the extent of spontaneity further increases by means of rising *** obtained outcomes from the ΔHm^0 and ΔSm^0 values disclose that the interactions between CMT and CTAB are mostly electrostatic along with hydrophobic in *** thermodynamic parameters of transfer and enthalpy-entropy compensation phenomenon were also determined and discussed in detail.

关键词： Cefixime trihydrate CTAB Critical micelle concentration Compensation temperature Free energy of transfer

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