检索结果-南通市图书馆

Hybrid Deep Learning Based Attack Detection for Imbalanced Data Classification

Intelligent Automation & Soft Computing 2023年第1期35卷 297-320页

作者： rasha almarshdi Laila Nassef Etimad Fadel Nahed Alowidi Department of Computer Science Faculty of Computing and Information TechnologyKing Abdulaziz UniversityJeddahSaudi Arabia Department of Computer Science Faculty of Computer Science and EngineeringUniversity of HailHailSaudi Arabia

Internet of Things(IoT)is the most widespread and fastest growing technology *** to the increasing of IoT devices connected to the Internet,the IoT is the most technology under security *** IoT devices are not designed with security because they are resource constrained ***,having an accurate IoT security system to detect security attacks is *** Detection Systems(IDSs)using machine learning and deep learning techniques can detect security attacks *** paper develops an IDS architecture based on Convolutional Neural Network(CNN)and Long Short-Term Memory(LSTM)deep learning *** implement our model on the UNSW-NB15 dataset which is a new network intrusion dataset that cate-gorizes the network traffic into normal and attacks *** this work,interpolation data preprocessing is used to compute the missing ***,the imbalanced data problem is solved using a synthetic data generation *** experiments have been implemented to compare the performance results of the proposed model(CNN+LSTM)with a basic model(CNN only)using both balanced and imbalanced ***,with some state-of-the-art machine learning classifiers(Decision Tree(DT)and Random Forest(RF))using both balanced and imbalanced *** results proved the impact of the balancing *** proposed hybrid model with the balance technique can classify the traffic into normal class and attack class with reasonable accuracy(92.10%)compared with the basic CNN model(89.90%)and the machine learning(DT 88.57%and RF 90.85%)***,comparing the proposed model results with the most related works shows that the proposed model gives good results compared with the related works that used the balance techniques.

关键词： IoT IDS deep learning machine learning CNN LSTM

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Distributed Federated Split Learning Based Intrusion Detection System

引用

Intelligent Automation & Soft Computing 2024年第5期39卷 949-983页

作者： rasha almarshdi Etimad Fadel Nahed Alowidi Laila Nassef Department of Computer Science Faculty of Computing and Information TechnologyKing Abdulaziz UniversityJeddah21589Saudi Arabia Department of Computer Science Faculty of Computer Science and EngineeringUniversity of HailHail55476Saudi Arabia

The Internet of Medical Things(IoMT)is one of the critical emerging applications of the Internet of Things(IoT).The huge increases in data generation and transmission across distributed networks make security one of the most important challenges facing IoMT *** Denial of Service(DDoS)attacks impact the availability of services of legitimate *** Detection Systems(IDSs)that are based on Centralized Learning(CL)suffer from high training time and communication *** that are based on distributed learning,such as Federated Learning(FL)or Split Learning(SL),are recently used for intrusion *** preserves data privacy while enabling collaborative model ***,FL suffers from high training time and communication *** the other hand,SL offers advantages in terms of computational resources,but it faces challenges such as communication overhead and potential security vulnerabilities at the split *** Split Learning(FSL)has proposed overcoming the problems of both FL and SL and offering more secure,efficient,and scalable distribution *** paper proposes a novel distributed FSL(DFSL)system to detect DDoS *** proposed DFSL enhances detection accuracy and reduces training time by designing an adaptive aggregation method based on the early stopping ***,the increased number of clients leads to increasing communication *** further propose a Multi-Node Selection(MNS)based Best ChannelBest l2-Norm(BC-BN2)selection scheme to reduce communication *** DL models are used to test the effectiveness of the proposed system,including a Convolutional Neural Network(CNN)and CNN with Long Short-Term Memory(LSTM)on two modern *** performance of the proposed system is compared with three baseline distributed approaches such as FedAvg,Vanilla SL,and SplitFed *** proposed system outperforms the baseline algorithms with an accuracy of 99.70%and 99.87%in CICDDoS20

关键词： IDS DFSL DDoS attacks CNN CNN+LSTM

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

A Comparative Study on the Corrosion Performance of Ni_(47)Ti_(49)Co_4 and Ni_(51)Ti_(49) Shape Memory Alloys in Simulated Saliva Solution for Dental Applications

引用

Acta Metallurgica Sinica(English Letters) 2016年第11期29卷 1001-1010页

作者： rasha A.Ahmed Chemistry Department Faculty of Science Taif University Forensic Chemistry Laboratories Medico Legal DepartmentMinistry of Justice

In this study, the corrosion behavior of Ni47Ti49Co4 shape memory alloy（SMA） was investigated in simulated saliva solution with the binary alloy Ni（51）Ti49 as a reference. The surface morphology and the chemical composition of the oxide films were characterized by scanning electron microscopy and X-ray photoelectron spectroscopy before and after immersion in the test solutions, respectively. The results showed that the ternary alloy was less affected by the test solution,owning to the formation of passive layer composed mainly of the oxides of titanium and cobalt in several oxidation *** voltammetry, electrochemical impedance spectroscopy and potentiodynamic polarization measurements affirmed that the passive oxide film significantly improved the corrosion resistance of Ni47Ti49Co4 SMAs as demonstrated by the smaller corrosion current density, larger resistance and smaller capacitance. Consequently, alloying with cobalt, which has paramount importance in enhancing the passive layer, expands the use of Ni47Ti49Co4 SMAs in dental work as new nitinol alloys with high corrosion resistances.

关键词： Ni47Ti49Co4 Shape memory alloy (SMA) Corrosion Artificial saliva X-ray photoelectronspectroscopy (XPS)

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Smart homes: potentials and challenges

引用

Clean Energy 2021年第2期5卷 302-315页

作者： rasha El-Azab Electrical Power and Machines Department Faculty of Engineering at Helwan UniversityCairoEgypt

Decentralized distributed clean-energy sources have become an essential need for smart grids to reduce the harmful effects of conventional power *** homes with a suitable sizing process and proper energy-management schemes can share in reducing the whole grid demand and even sell clean energy to the *** homes have been introduced recently as an alternative solution to classical power-system problems,such as the emissions of thermal plants and blackout hazards due to bulk plants/transmission *** appliances,sources and energy storage of smart homes should be coordinated with the requirements of homeowners via a suitable energy-management ***-management systems are the main key to optimizing both home sources and the operation of loads to maximize home-economic benefits while keeping a comfortable *** intermittent uncertain nature of smart homes may badly affect the whole grid *** prospective high penetration of smart homes on a smart power grid will introduce new,unusual scenarios in both generation and *** this paper,the main features and requirements of smart homes are *** review aims also to address recent proposed smart-home energy-management ***,smart-grid challenges with a high penetration of smart-home power are discussed.

关键词： smart homes energy-management system electrical tariff smart-home infrastructure load scheduling power-quality control

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Insight into appropriate medication prescribing for elderly in the COVID-19 era

引用

World Journal of Clinical Cases 2022年第32期10卷 12056-12058页

作者： Amr S Omar rasha Kaddoura Department of Cardiothoracic Surgery Hamad Medical CoporationDoha 3050Qatar Department of Critical Care Medicine Beni Suef Faculty of MedicineBeni Suef 62511Egypt Department of Medicine Weill Cornell Medical Center in QatarDoha 3050Qatar Department of Pharmacy Heart HospitalHamad Medical CorporationDoha 3050Qatar

Coronavirus disease 2019(COVID-19)complicates clinical management in elderly *** is an additional need to properly treat and monitor elderly COVID-19 *** paper discusses the inappropriate medication prescribing in the... 详细信息

关键词： Atrial fibrillation Beta blockers COVID-19 Elderly

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Impacts of multiple demand-side management strategies on microgrids planning:a literature survey

引用

Clean Energy 2024年第1期8卷 36-54页

作者： rasha Elazab Ahmed T.Abdelnaby A.A.Ali Electrical Power and Machines Department Faculty of Engineering at Helwan UniversityCairoEgypt

Demand-side management(DSM)schemes play a crucial role in managing renewable energy generation and load fluctuations by uti-lizing demand-response programmes(DRPs).This paper aims to provide a detailed overview of DRPs that help microgrid operators to keep costs and reliability within acceptable ***,this review paper provides a detailed economic load model for DRPs based on initial load,demand-response(DR)incentive,DR penalty and elasticity *** article also aims to guide researchers in identifying research gaps in DSM applications in microgrids by comparing various DSM schemes from different countries and regions in terms of DSM strategies,objective functions and optimization ***,this study analyses the impact of DRPs on microgrid configuration from the perspective of utilities and customers,considering technical and economic performance *** a result,it can be concluded that none of the studied cases provides models or guidelines for choosing appropriate DSM schemes that consider different consumer interests or load-type ***,a few researchers have addressed the features of a modern price-based DR strategy,renewable generation-based dynamic pricing DR,which offers higher customer satisfaction than traditional DRPs.

关键词： demand-side management optimal sizing demand-response strategies renewable generation-based dynamic pricing

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Reliable planning of isolated Building Integrated Photovoltaic systems

引用

Clean Energy 2021年第1期5卷 32-43页

作者： rasha Elazab Janet Eid and Amr Amin Electrical Power and Machines Department Faculty of EngineeringHelwan UniversityCairoEgypt

In this paper,two probabilistic reliability indices are presented to define the effect of clouds on different types of Building Integrated Photovoltaic(BIPV)*** indices do not match the main features of photovoltaic(PV)sources,such as variability,uncertainty and dependency on weather *** addition,they are time indicators that describe the percentage of total failure time per year without any indication about power or energy *** using the available Geographic Information System solar-irradiation database,the proposed indices consider a similar pattern of expected daily solar irradiation as a model of PV *** different models are studied for diverse building loads:an energy model for flexible loads and a constant-power model for critical loads.A comparative study is implemented for six different locations:Cairo,London,Berlin,Beijing,Madrid and ***,three types of BIPV systems are studied:fixed,double-axis-tracking and concentrated PV *** presented results show the effects of clouds,PV type and locations on the system performance.

关键词： stand-alone building reliability analysis capacity planning solar power generation BIPV

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Improving the reconstruction efficiency of sparsity adaptive matching pursuit based on the Wilkinson matrix

引用

Frontiers of Information Technology & Electronic Engineering 2018年第4期19卷 503-512页

作者： rasha SHOITAN Zaki NOSSAIR I.I.IBRAHIM Ahmed TOBAL Computer and Systems Department Electronic Research Institute Electronics Communicationsand Computer DepartmentHelwan University

Sparsity adaptive matching pursuit(SAMP)is a greedy reconstruction algorithm for compressive sensing *** reconstructs signals without prior information of sparsity and presents better reconstruction performance for noisy signals compared to other greedy ***,SAMP still suffers from relatively poor reconstruction quality especially at high compression *** the proposed research,the Wilkinson matrix is used as a sensing matrix to improve the reconstruction quality and to increase the compression ratio of the SAMP ***,the idea of block compressive sensing(BCS)is combined with the SAMP technique to improve the performance of the SAMP *** simulations have been conducted to evaluate the proposed BCS-SAMP technique and to compare its results with those of several compressed sensing *** results show that the proposed BCS-SAMP technique improves the reconstruction quality by up to six decibels(d B)relative to the conventional SAMP *** addition,the reconstruction quality of the proposed BCS-SAMP is highly comparable to that of iterative ***,the computation time of the proposed BCS-SAMP is less than that of the iterative techniques,especially at lower measurement fractions.

关键词： Block compressive sensing Sparsity adaptive matching pursuit Greedy algorithm Wilkinson matrix

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Review on nanocomposites fabricated by mechanical alloying

引用

International Journal of Minerals,Metallurgy and Materials 2019年第9期26卷 1047-1058页

作者： Mohammed A. Taha rasha A. Youness M.F. Zawrah Solid State Physics Department National Research CentreEl Buhouth St.Dokki 12622CairoEgypt Spectroscopy Department National Research CentreEl Buhouth St.Dokki 12622CairoEgypt Refractories Ceramics and Building Material DepartmentNational Research CentreEl Buhouth St.Dokki 12622CairoEgypt

Composites are composed of multiphase materials, where each phase has specific properties that differ from those of the other phases which can effect on the whole properties of composite. Nanocomposites are class of materials that contain at least one phase in the nanometric size range and can be produced by any suitable technique for preparing nanomaterials. Composites are an interesting class of materials that have recently been used in numerous applications, including structural, biomedical, electronics, and environmental applications. In composites, reinforcements might be fibers, particulates, or whiskers. Mechanical alloying(MA) is a promising technique for producing nanocomposite materials that are difficult or impossible to prepare via conventional techniques. In this review, we provide an overview of nanocomposites prepared by the MA process. The mechanism of milling and other milling parameters are overviewed, and insights into sintering categories and parameters are also presented.

关键词： nanocomposites mechanical alloying fabrication sintering

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Investigain:A Productive Asset Management Web Application

引用

Computer Systems Science & Engineering 2021年第8期38卷 151-164页

作者： Rabbani rasha Mohammad Monirujjaman Khan Mehedi Masud Mohammed AAlZain Department of Electrical and Computer Engineering North South UniversityBashundharaDhaka 1229Bangladesh Department of Computer Science College of Computers and Information TechnologyTaif UniversityP.O.Box 11099Taif 21944Saudi Arabia Department of Information Technology College of Computers and Information TechnologyTaif UniversityP.O.Box 11099Taif 21944Saudi Arabia

The Investigain is a progressive web application to make mutual funds investments through a Systematic Investment *** application utilizes the web’s modern capabilities,such as Asynchronous JavaScript and XML(AJAX),JavaScript,and Hypertext Marker Language(HTML5).The application also uses a powerful relational database management system,such as MySQL,to display asset management *** application has two portals,one for investors and one for a particular asset manager or asset management *** investor has an account in the investor *** investor can view his/her profile,current balance,balance history,dividends,the units of mutual funds bought,unit price,the value of each mutual fund,and can pay installments using an embedded online payment *** managers can monitor all investments,manage user accounts,and reimburse dividends using the admin *** paper also presents the experimental results of using the Investigain application,compares them with existing systems,and details the application’s prospect to improve its socio-economic *** system’s frontend is designed with Bootstrap and jQuery *** backend is designed using Hypertext Preprocessor(PHP)server-side scripting *** system demonstrated increased satisfaction from its clients.

关键词： Asset management mutual fund web application systematic investment plan investment web internet net asset value capital market

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：