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Smart-City-based Data Fusion Algorithm for Internet of Things

Computers, Materials & Continua 2022年第11期73卷 2407-2421页

作者： Jawad khan Muhammad amir khan N.Z.Jhanjhi Mamoona Humayun Abdullah Alourani Department of Computer Science IIC University of TechnologyPhnom PenhCambodia Department of Computer Science COMSATS University IslamabadAbbottabad Campus22060Pakistan School of Computer Science and Engineering SCETaylor’s UniversitySubang JayaSelangorMalaysia Department of Information Systems College of Computer and Information SciencesJouf Universityal-JoufKSA Department of Computer Science and Information College of Science in ZulfiMajmaah UniversityAl-Majmaah11952Saudi Arabia

Increasingly,Wireless Sensor Networks(WSNs)are contributing enormous amounts of *** the recent deployments of wireless sensor networks in Smart City infrastructures,significant volumes of data have been produced every day in several domains ranging from the environment to the healthcare system to *** wireless sensor nodes,a Smart City environment may now be shown for the benefit of *** Smart City delivers intelligent infrastructure and a stimulating environment to citizens of the Smart Society,including the elderly and ***,Quality of Service(QoS)and poor data performance are common problems in WSNs,caused by the data fusion method,where a small amount of bad data can significantly impact the total fusion *** our proposed research,a WSN multisensor data fusion technique employing fuzzy logic for event *** the new proposed Algorithm,sensor nodes will collect less repeated data,and redundant data will be used to increase the data’s overall *** network’s fusion delay problem is investigated,and a minimum fusion delay approach is provided based on the nodes’fusion waiting *** proposed algorithm performs well in fusion,according to the results of the *** a result of these discoveries,It is concluded that the algorithm describe here is effective and dependable instrument with a wide range of applications.

关键词： Internet of things data fusion wireless sensor network fuzzy inference system

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A Compact Rhombus Shaped Antenna with Extended Stubs for Ultra-Wideband Applications

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Computers, Materials & Continua 2022年第11期73卷 2637-2650页

作者： Syed Misbah un Noor Muhammad amir khan Shahid khan NZ Jhanjhi Mamoona Humayun Hesham A.Alhumyan Department of Electrical Engineering IIC University of TechnologyPhnom PenhCambodia Department of Computer Science COMSATS University IslamabadAbbottabad Campus22060Pakistan Department of Electrical and Computer Engineering COMSATS University IslamabadAbbottabad Campus22060Pakistan School of Computer Science SCSTaylor’s UniversitySubang Jaya47500SelangorMalaysia 5Center for Smart Society 0 CSS5 Faculty of Innovation and TechnologyTaylor’s UniversitySubang Jaya47500Malaysia Department of Information Systems College of Computer and Information SciencesJouf UniversityAl-JoufKSA

Ultra-wideband(UWB)is highly preferred for short distance *** a result of this significance,this project targets the design of a compact UWB *** paper describes a printed UWB rhombusshaped antenna with a partial ground *** achieve wideband response,two stubs and a notch are incorporated at both sides of the rhombus design and ground plane *** excite the antenna,a simple microstrip feed line is *** suggested antenna is built on a 1.6 mm thick FR4 *** proposed design is very compact with overall electrical size of 0.18λ×0.25λ(14×18 mm2).The rhombus shaped antenna covers frequency ranging from 3.5 to 11 GHz with 7.5 GHz impedance *** proposed design simulated and measured bandwidths are 83.33%and 80%,*** pattern in terms of E-field and H-field are discussed at 4,5.5 and 10 GHz *** proposed design has 65%radiation efficiency and 1.5 dBi peak *** proposed design is simulated in CST(Computer Simulation Technology)simulator and the simulated design is fabricated for the measured *** simulated and measured findings are in close *** obtained results confirm the application of the proposed design for the ultra-wide band applications.

关键词： Ultra-wideband impedance bandwidth radiation pattern CST electrical size

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Stress combination:When two negatives may become antagonistic,synergistic or additive for plants?

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Pedosphere 2023年第2期33卷 287-300页

作者： Hera NADEEM amir khan Rishil GUPTA Mohamed HASHEM Saad ALAMRI Mansoor Ahmad SIDDIQUI Faheem AHMAD Department of Botany Aligarh Muslim UniversityAligarh 202002(India) Department of Biology College of ScienceKing Khalid UniversityAbha 61413(Saudi Arabia) Botany and Microbiology Department Faculty of ScienceAssiut UniversityAssiut 71516(Egypt)

Plants in their natural environment are constantly subjected to various abiotic and biotic stressors and,therefore,have developed several defense mechanisms to maintain *** responses are intricate and require various physiological,biochemical,and cellular changes in *** reaction mechanisms in plants subjected to drought,salinity,or heat stress alone have been explained in numerous ***,the field conditions are significantly different from the controlled laboratory *** the field,crops or plants are simultaneously exposed to two or more abiotic and/or biotic stress conditions,such as a combination of salinity and heat,drought and cold,or any of the abiotic stresses combined with pathogen *** have shown that plants’reactions to combinations of more than two stress factors are distinct and cannot be explicitly deduced from their responses to different stresses when applied ***,additional research is needed to understand the complete mechanism of plant responses to stress by analyzing data between single stress and multiple stress *** review aims to provide an overview of current research on plant responses to a combination of various stress conditions and their influence on the metabolic,transcriptional,and physiological characteristics of plants.

关键词： abiotic stress abscisic acid biotic stress defence mechanism multifactorial stress reactive oxygen species stress response

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New insights on the utilization of ultrasonicated mustard seed cake:chemical composition and antagonistic potential for root-knot nematode,Meloidogyne javanica

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2021年第7期22卷 563-574页

作者： Hera NADEEM Pieter MALAN amir khan Mohd ASIF Mansoor AHMAD SIDDIQUI Simon TUHAFENI ANGOMBE Faheem AHMAD Department of Botany Aligarh Muslim UniversityAligarh-202002U.P.India Department of Botany School of Biological SciencesNorth-West University(Mafikeng Campus)Mmabatho 2735South Africa Pharmacopoeia Commission for Indian Medicine and Homeopathy Ghaziabad-201002U.P.India Faculty of Agriculture and Natural Resources University of NamibiaWindhoek 10026Namibia

This study focused,for the first time,on the effect of ultrasonic features on the extraction efficiency of secondary metabolites in mustard seed cake(MSC).The nematostatic potential of sonicated seed cake was examined against the second-stage juveniles(J2s)of root-knot nematode,Meloidogyne *** results show that a 35 ppm(parts per million)concentration of a sonicated extract(SE)sample of MSC caused 65%J2s mortality at 18 h exposure period in *** also significantly suppressed the root-knot index(RKI=0.94)in tomato *** lethal concentration values for SE were 51.76,29.79,and 13.34 ppm,respectively,at 6,12,and 18 h of the exposure period,and the lethal concentration values for the non-sonicated extract(NSE)sample were 116.95,76.38,and 55.59 ppm,respectively,at similar exposure *** and gluconapin were identified as the major compounds in ultrasonic-assisted *** of the high extraction efficiency of metabolites in the SE,all treat‐ments of SE were shown to be antagonistic to ***,this study of ultrasonication activity-based profiling of MSC may help generate target-based compounds at a scale relevant to the control of disease caused by nematodes in economic crops.

关键词： Plant-parasitic nematode Plant by-product Sono-extraction Liquid chromatography-electrospray ionization-mass spectrometry(LC-ESI-MS) Natural compound Nematode management

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The Himalayan cryosphere:A critical assessment and evaluation of glacial melt fraction in the Bhagirathi basin

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Geoscience Frontiers 2017年第1期8卷 107-115页

作者： Abul amir khan Naresh Chandra Pant Anindaya Sarkar S.K.Tandon Meloth Thamban Mahalinganathan K Department of Geology University of DelhiNew Delhi 11007India Department of Geology and Geophysics Indian Institute of TechnologyWest Bengal 721302India Department of Earth Science Indian Institute of TechnologyKanpurUttar Pradesh 208016India Department of Cryosphere Science National Centre for An tarctic and Ocean Research(NCAOR)Ministry of Earth SciencesGovernment of IndiaHeadland SadaVasco-da-GamaGoa 403804India

The cryosphere constitutes an important subset of the hydrosphere. The Himalayan cryosphere is a significant contributor to the hydrological budget of a large river system such as the Ganges. Basic data on the cryosphere in the Himalaya is inadequate and also has large uncertainties. The data on glacial melt component in the Himalayan rivers of India also shows high variability. The Gangotri glacier which constitutes nearly a fifth of the glacierized area of the Bhagirathi basin represents one of the fastest receding, large valley glaciers in the region which has been surveyed and monitored for over sixty years. The availability of measurement over a long period and relatively small glacier-fed basin for the Bha- girathi river provides suitable constraints for the measurement of the glacial melt fraction in a Himalayan river. Pre- and post-monsoon samples reveal a decreasing trend of depletion of 0180 in the river water from glacier snout （Gaumukh） to the confluence of the Bhagiratbi river with the Alaknanda river near Devprayag. Calculations of existing glacial melt fraction （-30% at Rishikesh） are not consistent with the reported glacial thinning rates. It is contended that the choice of unsuitable end-members in the three component mixing model causes the overestimation of glacial melt component in the river discharge. Careful selection of end members provides results （-11% at Devprayag） that are consistent with the expected thinning rates.

关键词： CryosphereGlacial melt fractionBhagirathi riverOxygen isotope

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A Hybrid and Lightweight Device-to-Server Authentication Technique for the Internet of Things

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Computers, Materials & Continua 2024年第3期78卷 3805-3823页

作者： Shaha Al-Otaibi Rahim khan Hashim Ali Aftab Ahmed khan amir Saeed Jehad Ali Department of Information Systems College of Computer and Information SciencesPrincess Nourah bint Abdulrahman UniversityP.O.Box 84428Riyadh11671Saudi Arabia Department of Computer Science Abdul Wali Khan University MardanMardan23200Pakistan Department of Computer Science and IT UET PeshawarJalozai Campus PeshawarPeshawar24240Pakistan Department of AI Convergence Network Ajou UniversitySuwon16499South Korea

The Internet of Things(IoT)is a smart networking infrastructure of physical devices,i.e.,things,that are embedded with sensors,actuators,software,and other technologies,to connect and share data with the respective server *** IoTs are cornerstones in different application domains,the device’s authenticity,i.e.,of server(s)and ordinary devices,is the most crucial issue and must be resolved on a priority ***,various field-proven methodologies were presented to streamline the verification process of the communicating devices;however,location-aware authentication has not been reported as per our knowledge,which is a crucial metric,especially in scenarios where devices are *** paper presents a lightweight and location-aware device-to-server authentication technique where the device’s membership with the nearest server is subjected to its location information along with other ***,Media Access Control(MAC)address and Advance Encryption Scheme(AES)along with a secret shared key,i.e.,λ_(i) of 128 bits,have been utilized by Trusted Authority(TA)to generate MaskIDs,which are used instead of the original ID,for every device,i.e.,server and member,and are shared in the offline ***,TA shares a list of authentic devices,i.e.,server S_(j) and members C_(i),with every device in the IoT for the onward verification process,which is required to be executed before the initialization of the actual communication ***,every device should be located such that it lies within the coverage area of a server,and this location information is used in the authentication process.A thorough analytical analysis was carried out to check the susceptibility of the proposed and existing authentication approaches against well-known intruder attacks,i.e.,man-in-the-middle,masquerading,device,and server impersonations,etc.,especially in the IoT ***,proposed authentication and existing state-of-the-art approaches have been s

关键词： Internet of things authenticity security location communication

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In vivo screening of essential oils of Skimmia laureola leaves for antinociceptive and antipyretic activity

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Asian Pacific Journal of Tropical Biomedicine 2013年第3期3卷 202-206页

作者： Naveed Muhammad Barkatullah Muhammad Ibrar Haroon khan Muhammad Saeed amir Zada khan Waqar Ahmad Kaleem Department of Pharmacy.University of Peshawar-25120 Department of Pharmacy University of Peshawar-25120 Gandhara College of Pharmacy Gandhara University

Objective:To study the screening of essential oils of Skimmia laureola leaves(SLO)for acute toxicity,antinociceptive,antipyretic and anticonvulsant activities in various animal ***:SLO were extracted using modified Clevenger type *** toxicity test was used in mice to observe its safety *** activity of SLO was evaluated in acetic acid induced writhing and hot plate *** induced hyperthermic mice and pentylenetetrazole induced convulsive mice were used for the assessment of its antipyretic and anticonvulsant profile ***:Substantial safety was observed for SLO in acute toxicity *** showed a high significant activity in acetic acid induced writhing test in a dose dependent manner with maximum pain attenuation of 68.48%at 200 mg/kg ***,it did not produce any relief in thermal induced pain at test *** challenged against pyrexia evoked by yeast,SLO manifested marked amelioration in hyperthermic mice,dose *** anti-hyperthermic activity(75%)was observed at 200 mg/kg *** 4 h of drug ***,SLO had no effect on seizures control and mortality caused by ***:In vivo studies of SLO showed prominent antinociceptive and antipyretic activities with ample safety profile and thus provided pharmacological base for the traditional uses of the plant in various painful conditions and *** detail studies are required to ascertain its clinical application.

关键词： Skimmia laureola leaves Essential oils Antinociceptive Antipyretic activity

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A Novel Layered Double Hydroxide and Dodecyl Alcohol Assisted PCM Composite with High Latent Heat Storage Capacity and Thermal Conductivity

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Journal of Thermal Science 2024年第2期33卷 537-547页

作者： AL-AHMED amir SARI Ahmet khan Firoz AL-RASHEIDI Masoud Hekimoğlu Gökhan AFZAAL Mohammad A.ALSULAMI Ahmed DAFALLA Hatim SALHI Billel A.ALSULAIMAN Fahad Interdisciplinary Research Center for Renewable Energy and Power Systems(IRC-REPS) King Fahd University of Petroleum&MineralsDhahran31261Saudi Arabia Department of Metallurgical and Material Engineering Karadeniz Technical UniversityTrabzon61080Turkey Maths and Natural Sciences Division Higher Colleges of TechnologyP.O.Box 7947SharjahUnited Arab Emirates Department of Mechanical Engineering King Fahd University of Petroleum&MineralsDhahran31261Saudi Arabia Core Research Facilities King Fahd University of Petroleum&MineralsDhahran31261Saudi Arabia Interdisciplinary Research Center for Membranes and Water Security King Fahd University of Petroleum&MineralsDhahran31261Saudi Arabia

Dodecyl alcohol(DDA) is a promising solid-liquid phase change material(PCM) due to its favorable latent heat storage(LHS) ***,the leakage issue of PCM in a melted state during the heating period and low thermal conductivity restricts its utilization potential in thermal energy storage(TES) *** the same context,the present work aims to overcome the leakage issue and improve the thermal conductivity of the *** this in mind,a novel leak-proof layered double hydroxide(LDH)/DDA composite PCM is proposed through a solution-based impregnation *** leak-proof impregnation ratio of the DDA impregnated within the cavities of the synthesized Al/Fe-LDH was determined to be 60%.Detailed morphological,physicochemical,and thermal properties of the fabricated composite were studied by scanning electron microscopy(SEM),Fourier transforms infrared(FTIR) spectroscopy,X-ray diffraction(XRD)spectroscopy,differential scanning calorimetry(DSC),thermalgravimetric analysis(TGA),and thermal cycling *** results show that the LDH/DDA composite has a suitable phase change temperature(about 20℃) for passive solar thermal management of building *** composite PCM showed high LHS enthalpy(about136 J/g),good thermal stability,and cycling LHS *** also showed nearly 152% higher thermal conductivity compared to that of pure DDA,ultimately reducing the melting and solidification time of the pure DDA by 44.9% and 45.5%,respectively.

关键词： dodecyl alcohol layered double hydroxide composite PCM thermal conductivity thermal energy storage(TES)

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Some Exact Solutions of Generalized Jeffrey Fluid Using N-Transform

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American Journal of Computational Mathematics 2017年第4期7卷 402-412页

作者： amir khan Gul Zaman Saeed Ahmad M. Ikhlaq Chohan Department of Mathematics and Statistics University of Swat Swat Pakistan Department of Mathematics University of Malakand Lower Dir Pakistan Department of Business Administration and Accounting Buraimi University College Al-Buraimi Oman

In this paper, we presents some new exact solutions corresponding to three unsteady flow problems of a generalized Jeffrey fluid produced by a flat plate between two side walls perpendicular to the plate. The fractional calculus approach is used in the governing equations. The exact solutions are established by means of the Fourier sine transform and N-transform. The series solutions of velocity field and associated shear stress in terms of Fox H-function, satisfying all imposed initial and boundary conditions, have been obtained. The similar solutions for ordinary Jeffrey fluid, performing the same motion, appear as limiting case of the solutions are also obtained. Also, the obtained results are analyzed graphically through various pertinent parameters.

关键词： Generalized Jeffrey Fluid Fractional Derivatives Fox H-Functions N-Transform

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The Oscillatory Motion of Oldroyd-B Fluid by Incorporating Some of the Mechanical Factors

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Journal of Applied Mathematics and Physics 2017年第12期5卷 2402-2410页

作者： amir khan Gul Zaman Yongjin Li Saeed Ahmad Altaf Hussain Department of Mathematics and Statistics University of Swat Khyber Pakhtunkhwa Pakistan Department of Mathematics University of Malakand Chakdara Dir (Lower) Khyber Pakhtunkhwa Pakistan Department of Mathematics Sun Yat-sen University Guangzhou China

The aim of this paper is to present a numerical study of oscillatory motion of Oldroyd-B fluid in a uniform magnetic field through a small circular pipe. First, we derive the orientation stress tensor by considering the Brownian force. Then, the orientation stress tensor is incorporated by taking Hookean dumbbells on Brownian configuration fields in the Oldroyd-B model. The Oldroyd-B model is then reformulated coupled with the momentum equation and the total stress tensor. Finally, we analyze the orientation stress tensor in the pipe by the numerical simulations of the model and showed that the effect of orientation stress tensor is considerable although the Brownian force is sufficiently small.

关键词： Oldroyd-B Fluid Brownian Force Finite Difference Oscillatory Flows

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