检索结果-南通市图书馆

Miniaturized Novel UWB Band-Notch Textile Antenna for Body Area Networks

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computer Systems Science & Engineering 2022年第3期40卷 1183-1198页

作者： Mohammad Monirujjaman Khan Arifa Sultana Mehedi Masud Gurjot Singh Gaba hesham A.alhumyani Department of Electrical and Computer Engineering North South UniversityBashundharaDhaka1229Bangladesh Department of Computer Science College of Computers and Information TechnologyTaif UniversityTaif21944Saudi Arabia School of Electronics&Electrical Engineering Lovely Professional UniversityPunjabIndia Department of Computer Engineering College of Computers and Information TechnologyTaif UniversityTaif21944Saudi Arabia

This paper presents the design and analysis of a miniaturized and novel wearable ultra-wideband(UWB)band-notch textile antenna for Body Area Networks(BANs).The major goal of building the antenna for wearable applications with band notch in X-band is to reject the downlink band(7.25 to 7.75 GHz)of satellite communication in the UWB frequency ranges of 3.1–10.6 GHz to keep away from *** Simulation Technology(CST)TM Microwave Studio,which is user-friendly and reliable,was used to model and simulate the *** radiating element of the antenna is designed on Jeans’textile substrate,which has a relative permittivity of *** thickness of the jeans’fabric substrate has been considered to be 1 *** loss,gain,bandwidth,impedance,radiation,and total efficiency,and radiation patterns are presented and *** antenna is simulated placed on the three layers of the human body model,and the on-body results are summarized in comparison with free *** and analysis indicate that this antenna has good band-notch characteristics in the frequency range of 7.25 GHz to 7.75 *** parametric study varying the relative permittivity of Jeans’fabric substrate of this antenna is also *** addition,effects on the antenna parameters of variation of ground plane size have been *** antenna is 25 mm×16 mm×1.07 mm in total *** reveal that this antenna achieves the design goal and performs well both in free space and on the body.

关键词： UWB band notch textile antenna wearable antenna on-body BANs jeans X-band CST

Novel Compact UWB Band Notch Antenna Design for Body-Centric Communications

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computer Systems Science & Engineering 2022年第2期40卷 673-689页

作者： Sk Raziul Ahasan Kaisarul Islam Mohammad Monirujjaman Khan Mehedi Masud GurjotSingh Gaba hesham A.alhumyani Department of Electrical and Computer Engineering North South UniversityBashundharaDhaka1229Bangladesh Department of Computer Science College of Computers and Information TechnologyTaif UniversityP.O.Box 11099Taif21944Saudi Arabia School of Electronics&Electrical Engineering Lovely Professional UniversityPunjabIndia Department of Computer Engineering College of Computers and Information TechnologyTaif UniversityP.O.Box 11099Taif21944Saudi Arabia

This research analyzes and implements an innovative and tiny ultrawideband(UWB)antenna with band-notched features for body-centric *** shape of the designed antenna looks like a‘swan’with a slotted *** Simulation Technology(CST)is used to assess and investigate the performance of this *** a band notch,this antenna can prevent interference from Wireless Local Area Network(WLAN)(5.15–5.825 GHz)and Worldwide Interoperability for Microwave Access(WiMAX)(5.25–5.85 GHz)*** first,the performance parameters like return loss response,gain,radiation patterns,and radiation efficiency of this UWB antenna are *** that,the human body effects on the antenna performance of the antenna are also examined to place the antenna at various distances away from 3-layers of phantom body model at different *** the on-body performance parameter results are compared and analyzed with free space performance parameter ***,by changing patch slot length and ground plane length,parametric studies were done for performance *** to this research,it is noticed that the antenna is tiny and *** shows good performance in body case as ***,the antenna is very suitable for healthcare applications.

关键词： Band notch compact size ultra wide band antenna novel antenna on-body body-centric communications computer simulation technology(CST)

Pseudonym Mutable Based Privacy for 5G User Identity

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computer Systems Science & Engineering 2021年第10期39卷 1-14页

作者： Rashid A.Saeed Mamoon M.Saeed Rania A.Mokhtar hesham alhumyani S.Abdel-Khalek Department of Computer Engineering College of Computers and Information TechnologyTaif UniversityP.O.Box 11099Taif21944Saudi Arabia Department of Electrical Engineering Faculty of EngineeringAlzaiem Alazhari UniversityKhartoum11111Sudan Department of Communications and Electronics Engineering Faculty of EngineeringUniversity of Modern Sciences(UMS)Sana'a16784Yemen Department of Mathematics College of SciencesTaif UniversityP.O.Box 11099Taif21944Saudi Arabia

Privacy,identity preserving and integrity have become key problems for telecommunication *** privacy threats are expected in 5G networks considering the large number of devices that will be *** Internet of Things(IoT)and long-term evolution for machine type(LTE-m)are growing very fast with massive data traffic the risk of privacy attacks will be greatly *** all the above issues standards’bodies should ensure users’identity and privacy in order to gain the trust of service providers and *** such threats,5G specifications require a rigid and robust privacy *** research studies have addressed user privacy in 5G *** paper proposes a method to enhance user identity privacy in 5G systems through a scheme to protect the international mobile subscriber identity(IMSI)using a mutable mobile subscriber identity(MMSI)that changes randomly and avoids the exchange of *** maintains authentication and key agreement(AKA)structure compatibility with previous mobile generations and improves user equipment(UE)synchronization with home *** proposed algorithm adds no computation overhead to UE or the network except a small amount in the home subscriber server(HSS).The proposed pseudonym mutable uses the XOR function to send the MMSI from the HSS to the UE which is reducing the encryption overhead *** proposed solution was verified by ProVerif.

关键词： 5G MMSI IMSI AKA privacy user identity

AES Overhead Mitigation Using OpenMP

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Computer and Communications 2019年第7期7卷 206-218页

作者： hesham alhumyani Computer Engineering Department Taif University Taif KSA

The Advanced Encryption Standard (AES) has been extensively used in many systems to provide security. However, many of the implementations are susceptible to Side Channel Attacks (SCA). To address the susceptibility, several researchers have proposed a number of countermeasures. Masking scheme is one of the countermeasures that are commonly used to counteract such attacks. In this paper, we investigate the overhead of the countermeasure in terms of execution time of the first order-masking scheme for the AES “Encryption part only”. To achieve that, we have implemented the sequential algorithm of the AES with single processor, and after that used OpenMP directives to reduce the overhead of the countermeasure. Subsequently, the result of the sequential algorithm has been compared with its parallel implementations using 2, 4, 6, and 8 processors. We show how parallel implementation of the AES offers better performance yet flexible enough for cryptographic algorithms. Compared to the sequential unmasked AES implementation, the best masking scheme for the first order using data parallelism shows a performance in terms of speed up around 5x when 8 threads are used.

关键词： Advanced Encryption Standard Encryptions Parallelization OpenMP

Design of Automated Opinion Mining Model Using Optimized Fuzzy Neural Network

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2022年第5期71卷 2543-2557页

作者： Ala’A.Eshmawi hesham alhumyani Sayed Abdel Khalek Rashid A.Saeed Mahmoud Ragab Romany F.Mansour Department of Cybersecurity College of Computer Science and EngineeringUniversity of JeddahJeddahSaudi Arabia Department of Computer Engineering College of Computers and Information TechnologyTaif UniversityTaif21944Saudi Arabia Department of Mathematics Faculty of SciencesTaif UniversityTaif21944Saudi Arabia Centre for Artificial Intelligence in Precision Medicine King Abdulaziz UniversityJeddah21589Saudi Arabia Department of Mathematics Faculty of ScienceNew Valley UniversityEl-Kharga72511Egypt

Sentiment analysis or Opinion Mining (OM) has gained significant interest among research communities and entrepreneurs in the recentyears. Likewise, Machine Learning (ML) approaches is one of the interestingresearch domains that are highly helpful and are increasingly applied in severalbusiness domains. In this background, the current research paper focuses onthe design of automated opinion mining model using Deer Hunting Optimization Algorithm (DHOA) with Fuzzy Neural Network (FNN) abbreviatedas DHOA-FNN model. The proposed DHOA-FNN technique involves fourdifferent stages namely, preprocessing, feature extraction, classification, andparameter tuning. In addition to the above, the proposed DHOA-FNN modelhas two stages of feature extraction namely, Glove and N-gram ***, FNN model is utilized as a classification model whereas GTOA isused for the optimization of parameters. The novelty of current work is thatthe GTOA is designed to tune the parameters of FNN model. An extensiverange of simulations was carried out on the benchmark dataset and the resultswere examined under diverse measures. The experimental results highlightedthe promising performance of DHOA-FNN model over recent state-of-the-arttechniques with a maximum accuracy of 0.9928.

关键词： Opinion mining sentiment analysis fuzzy neural network metaheuristics feature extraction classification

Cloud‐based video streaming services:Trends,challenges,and opportunities

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

CAAI Transactions on Intelligence Technology 2024年第2期9卷 265-285页

作者： Tajinder Kumar Purushottam Sharma Jaswinder Tanwar Hisham Alsghier Shashi Bhushan hesham alhumyani Vivek Sharma Ahmed I.Alutaibi CSE Department JMIETIYamunanagarHaryanaIndia Department of Information Technology ASETAmity University Uttar PradeshNoidaIndia Tata Communications Limited New DelhiIndia Department of Information Technology College of Computer and Information SciencesMajmaah UniversityMajmaahSaudi Arabia Amity School of Engineering and Technology Amity UniversityPatnaBiharIndia Department of Computer Engineering College of Computers and Information TechnologyTaif UniversityTaifSaudi Arabia Department of Computer Engineering College of Computer and Information SciencesMajmaah UniversityMajmaahSaudi Arabia

Cloud computing has drastically changed the delivery and consumption of live streaming *** designs,challenges,and possible uses of cloud computing for live streaming are studied.A comprehensive overview of the technical and business issues surrounding cloudbased live streaming is provided,including the benefits of cloud computing,the various live streaming architectures,and the challenges that live streaming service providers face in delivering high‐quality,real‐time *** different techniques used to improve the performance of video streaming,such as adaptive bit‐rate streaming,multicast distribution,and edge computing are discussed and the necessity of low‐latency and high‐quality video transmission in cloud‐based live streaming is *** such as improving user experience and live streaming service performance using cutting‐edge technology,like artificial intelligence and machine learning are *** addition,the legal and regulatory implications of cloud‐based live streaming,including issues with network neutrality,data privacy,and content moderation are *** future of cloud computing for live streaming is examined in the section that follows,and it looks at the most likely new developments in terms of trends and *** technology vendors,live streaming service providers,and regulators,the findings have major policy‐relevant *** on how stakeholders should address these concerns and take advantage of the potential presented by this rapidly evolving sector,as well as insights into the key challenges and opportunities associated with cloud‐based live streaming are provided.

关键词： cloud computing video analysis video coding

Analytic Beta-Wavelet Transform-Based Digital Image Watermarking for Secure Transmission

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2022年第3期70卷 4657-4673页

作者： hesham alhumyani Ibrahim Alrube Sameer Alsharif Ashraf Afifi Chokri Ben Amar Hala S.El-Sayed Osama S.Faragallah Department of Computer Engineering College of Computers and Information TechnologyTaif UniversityP.O.11099Taif21944Saudi Arabia Department of Electrical Engineering Faculty of EngineeringMenoufia UniversityShebin El-Kom32511Egypt Department of Information Technology College of Computers and Information TechnologyTaif UniversityP.O.11099Taif21944Saudi Arabia

The rapid development in the information technology field has introduced digital watermark technologies as a solution to prevent unauthorized copying and redistribution of *** article introduces a self-embedded image verification and integrity *** images are firstly split into dedicated segments of the same block ***,different Analytic Beta-Wavelet(ABW)orthogonal filters are utilized for embedding a self-segment watermark for image segment using a predefined *** orthogonal filter coefficients are estimated to improve image reconstruction under different block *** conduct a comparative study comparing the watermarked images using three kinds of ABW filters for block sizes 64×64,128×128,and 256×*** embed the watermark using the ABW-based image watermarking method in the 2-level middle frequency sub-bands of the ABW digital image *** imperceptibility and robustness of the ABW-based image watermarking method image is evaluated based on the Peak Signal to Noise Ratio(PSNR)and Correlation coefficient *** the implementation results,we came to know that this ABW-based image watermarking method can withstand many image manipulations compared to other existing methods.

关键词： Watermarking ABW median filtering JPEG compression PSNR

Optimized Tuned Deep Learning Model for Chronic Kidney Disease Classification

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2022年第2期70卷 2097-2111页

作者： R.H.Aswathy P.Suresh Mohamed Yacin Sikkandar S.Abdel-Khalek hesham alhumyani Rashid A.Saeed Romany F.Mansour Department of Computer Science and Engineering KPR Institute of Engineering and TechnologyCoimbatore641407India Department of Medical Equipment Technology College of Applied Medical SciencesMajmaah UniversityAlMajmaah11952Saudi Arabia Department of Mathematics College of ScienceTaif UniversityTaif21944Saudi Arabia Department of Computer Engineering College of Computers and Information TechnologyTaif UniversityTaif21944Saudi Arabia Department of Mathematics Faculty of ScienceNew Valley UniversityEl-Kharga72511Egypt

In recent times,Internet of Things(IoT)and Cloud Computing(CC)paradigms are commonly employed in different healthcare *** gadgets generate huge volumes of patient data in healthcare domain,which can be examined on cloud over the available storage and computation resources in mobile *** Kidney Disease(CKD)is one of the deadliest diseases that has high mortality rate across the *** current research work presents a novel IoT and cloud-based CKD diagnosis model called Flower Pollination Algorithm(FPA)-based Deep Neural Network(DNN)model abbreviated as *** steps involved in the presented FPA-DNN model are data collection,preprocessing,Feature Selection(FS),and ***,the IoT gadgets are utilized in the collection of a patient’s health *** proposed FPA-DNN model deploys Oppositional Crow Search(OCS)algorithm for FS,which selects the optimal subset of features from the preprocessed *** application of FPA helps in tuning the DNN parameters for better classification *** simulation analysis of the proposed FPA-DNN model was performed against the benchmark CKD *** results were examined under different *** simulation outcomes established the superior performance of FPA-DNN technique by achieving the highest sensitivity of 98.80%,specificity of 98.66%,accuracy of 98.75%,F-score of 99%,and kappa of 97.33%.

关键词： Deep learning chronic kidney disease IoT cloud computing feature selection classification

Synthesis and Formation Mechanisms of Calcium Ferrite Compounds

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Materials Science & Technology 2004年第5期20卷 530-534页

作者： hesham I.Saleh Inorganic Chemistry Department National Research CenterDokkiCairoEgypt

Calcium ferrite compounds were prepared using calcium nitrate and iron nitrate with different molar ratios, 1:1, 0.5:1, and 1:0.5, respectively. The reactions of formation were investigated at different temperatures following the differential thermal analysis (DTA) results. Calcium ferrite compounds are CaFeO3, Ca2FeO3.5, Ca2Fe2O5, CaFe2O4, CaFe4O7, Ca7.2Fe0.8Fe30O53, Ca3Fe15O25, Ca4Fe14O25, and Ca4Fe9O17. Other reactive species of calcium nitrate are still present after firing at 450℃. Compounds were characterized using X-ray diffraction (XRD), DTA, TG, magnetic susceptibility, infrared spectra and scanning electron microscope (SEM). It is concluded that the formation mechanism of Ca-ferrite compounds depends mainly on the valency of iron cations which in role depends on its molar ratio and the existing atmosphere.

关键词： Ca-ferrite Formation mechanism Magnetic susceptibility