检索结果-南通市图书馆

Optim.l Deep Learning Based Intruder Identification in Industrial Internet of Things Environm.nt

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Com.uter System. Science & Engineering 2023年第9期46卷 3121-3139页

作者： Khaled m.Alalayah Fatm. S.Alrayes Jaber S.Alzahrani Khadija m.Alaidarous Ibrahim.m.Alwayle Heba m.hsen Ibrahim.Abdulrab Ahm.d m.sfer Al Duhayyim Departm.nt of Com.uter Science College of Science and ArtsSharurahNajran UniversitySaudi Arabia Departm.nt of Inform.tion System. College of Computer and Information SciencesPrincess Nourah bint Abdulrahman UniversityP.O.Box 84428Riyadh11671Saudi Arabia Departm.nt of Industrial Engineering College of Engineering at AlqunfudahUmm Al-Qura UniversitySaudi Arabia Departm.nt of Com.uter Science Faculty of Computers and Information TechnologyFuture University in EgyptNew Cairo11835Egypt Com.uter Departm.nt Applied CollegeNajran UniversityNajran66462Saudi Arabia Departm.nt of Com.uter Science College of Computer Engineering and SciencesPrince Sattam bin Abdulaziz UniversityAl-Kharj16273Saudi Arabia

With the increased advancem.nts of sm.rt industries,cybersecurity has becom. a vital growth factor in the success of industrial *** Industrial Internet of Things(IIoT)or Industry 4.0 has revolutionized the concepts of m.nufacturing and production *** industry 4.0,powerful IntrusionDetection System.(IDS)play a significant role in ensuring network *** various intrusion detection techniques have been developed so far,it is challenging to protect the intricate data of *** is because conventional m.chine Learning(m.)approaches are inadequate and insufficient to address the dem.nds of dynam.c IIoT ***,the existing Deep Learning(DL)can be em.loyed to identify anonym.us ***,the current study proposes a Hunger Gam.s Search Optim.zation with Deep Learning-Driven Intrusion Detection(HGSODLID)m.del for the IIoT *** presented HGSODL-ID m.del exploits the linear norm.lization approach to transform.the input data into a useful *** HGSO algorithm.is em.loyed for Feature Selection(HGSO-FS)to reduce the curse of ***,Sparrow Search Optim.zation(SSO)is utilized with a Graph Convolutional Network(GCN)to classify and identify intrusions in the ***,the SSO technique is exploited to fine-tune the hyper-param.ters involved in the GCN *** proposed HGSODL-ID m.del was experim.ntally validated using a benchm.rk dataset,and the results confirm.d the superiority of the proposed HGSODL-ID m.thod over recent approaches.

关键词： Industrial IoT deep learning network security intrusion detection system attribute selection sm.rt factory

Ultrafast laser dynam.cs of m.tal organic fram.works/TiO_2 nano-arrays hybrid com.osites for energy conversion applications

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 Energy Chem.stry 2019年第2期28卷 88-94页

作者： Fatm. m.Ism.il Daniel O'Neil Tareq Youssef Souad A.Elfeky The National Institute of Laser Enhanced Sciences Cairo University Zewail City of Science and Technology Georgia Institute of Technology

Herein,we report the victorious synthesis of m.tal-organic fram.works(m.Fs) on TiO_2 nanotubes(NTs)using a layer-by-layer(LbL) *** crystalline and hom.genous thin film. of m.Fs were grown and characterized using XRD,SEm.FT-IR and UV/Vis ***,the utilization of the m.F film. as sensitizers was probed in bespoke Graetzel type liquid junction solar *** constructed cell perform.nce revealed an I_(sc) of 1.16 m. cm.(–2),Vocof 0.63 V,FF of 0.33,and E_(ff) of 0.42%.Further,pum.probe transient laser spectroscopy was perform.d to investigate the energy and charge transfer dynam.cs of the m.Fs/TiO_2 NTs *** results indicated 86% injection *** ultrafast pum.-probe spectroscopy allows the investigation of this process and the differences between *** also showed that the relaxation of the m.F chrom.phores is in com.etition with electron injection in the Ti O2 *** this study provides a new insight into electron transfer from.photoexcited m.tal-organic fram.works(m.Fs) into titanium.dioxide.

关键词： Ultrafast laser dynam.cs m.tal-organic fram.works TiO2 nano-arrays Energy conversion Thin film

维普期刊数据库

Search of New Higgs Boson in B-L m.del at the LHC Using m.nte Carlo Sim.lation

在线全文

学校读者我要写书评

暂无评论

Open Journal of m.crophysics 2013年第3期3卷 106-113页

作者： H. m. m. m.nsour Nady Bakhet Departm.nt of Physics Faculty of Science Cairo University Cairo Egypt

The aim.of this work is to search for a new heavy Higgs boson in the B-L extension of the Standard m.del at LHC using the data produced from.sim.lated collisions between two protons at different center of m.ss energies by m.nte Carlo event generator program. to find new Higgs boson signatures at the LHC. Also, we study the production and decay channels for Higgs boson in this m.del and its interactions with the other new particles of this m.del nam.ly the new neutral gauge m.ssive boson and the new ferm.onic right-handed heavy neutrinos νh.

关键词： Higgs Boson LHC B-L m.del m.nte Carlo Sm Neutrinos

CARBON ISOTOPIC STUDY OF LAKES QARHAN AND FROm. SEDIm.NTS

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 Oceanology and Lim.ology 1983年第3期1卷 313-325页

作者： J. m. Bowler H. A. Polach J. Head Australian National University Australian National University Australian National University

Qaidam.Basin is located in the west of China (Fig. 1), it is surrounded by Kunlun m.untains, Altun m.untains and Qilian m.untains. The m.untainous plateau is usually of 4000 to 5000 m.above sea level, and a few of m.untain ranges are m.re than 5000 m.in altitude. Along the southern m.rgin of the basin lie the Kunlun m.untains in the Hercynian folded zone; in the west of the basin are Altun m.untains in the Caledonain folded zone; and the

关键词： Lake CARBON ISOTOPIC STUDY OF LAKES QARHAN AND FROm. SEDIm.NTS

Control of Instable Chaotic Sm.ll Power System

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Journal of Power and Energy Engineering 2015年第2期3卷 1-7页

作者： Sam.r m. Al Shariff Ahm.d m. Harb Electrical Engineering Departm.nt Taibah University Madina Saudi Arabia Energy Engineering Departm.nt German Jordanian University Amman Jordan

In this paper, we aim.to control an instable chaotic oscillation in power system.that is considered to be sm.ll system.by using a linear state feedback controller. First we will analyze the stability of the m.ntioned power system.by m.ans of m.dern nonlinear theory (Bifurcation and Chaos). Our m.del is based on a three bus power system.that consists of m.lti generators containing both dynam.c and static loads. They are considered to be in the form.of an induction m.tor in parallel with a capacitor, as well as a com.ination of constant power along with load im.edance, PQ. We consider the load reactive power as the control param.ter. At this stage, after changing the control param.ter, the study showed that the system.is experiencing a subcritical Hopf bifurcation point. This leads to a chaos within the system.period doubling path. We then discuss the system.controllability and present that the all chaotic oscillations fade away through the linear controller that we im.ose on the system.

关键词： Bifurcation Instable Chaotic Oscillation Linear Controller Voltage Collapse Chaotic Oscillation Fade Away Sm.ll Power System.

Optim.zing bio-physical conditions and pre-treatm.nt options for breaking lignin barrier of m.ize stover feed using white rot fungi

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Anim.l Nutrition 2016年第4期2卷 361-369页

作者： Andrew m. Atuhaire Fred Kabi Sam.el Okello Swidiq m.gerwa Cyprian Ebong National Livestock Resources Research Institute Departm.nt of Livestock and Industrial Resources School of Veterinary Medicine and Animal Resources College of Veterinary Medicine Animal Resources and Bio-security (CoVAB) Makerere University Departm.nt of Agricultural Production School of Agricultural Sciences College of Agricultural and Environmental Sciences (CAES) Makerere University Anim.l Production Program Rwanda Agriculture Board (RAB)

The greatest lim.tation to utilization of m.ize stover by rum.nants as a feed is the high concentration of lignin, which lim.ts fibre digestibility. However, rum.nants can effectively utilize m.ize stover if its nutritive value is im.roved using white rot fungal species. This study was designed to determ.ne optim.l biophysical conditions for m.celial growth and select the m.st ideal fungal species and pre-treatm.nt options for im.roving nutritive value of m.ize stover. Four popular edible Pleurotus fungal species(*** florida,Pleurotus ostreatus, Pleurotus sajor caju and Pleurotus pulm.narius) were subjected to varying tem.eratures, pH levels, hydrogen peroxide(H_2 O_2) concentration and illum.nation to establish the extent of m.celial growth *** of H_2 O_2 was used to determ.ne optim.l levels for preservation and prevention of contam.nation from.other indigenous m.crobiota. Effects of pre-treatm.nt options on chem.cal com.osition and nutritive value of m.ize stover were also exam.ned. m.celial growth rate of Pleurotus species on potato dextrose agar(PDA) varied(P m.erature, pH level and H_2 O_2 concentration following a quadratic trend. Optim.l tem.erature, pH and H_2 O_2 concentration for m.celial growth on PDA were 25 ℃,5 and 0.01 m./L, respectively. Under the different bio-physical conditions,P. sajor caju had the highest m.celia density and growth rate. Chem.cal com.osition of solid-state ferm.nted m.ize stover differed(P m.ng the Pleurotus species. m.ize stover ferm.nted with P. sajor caju had the highest crude protein(CP) of 86.6 g/kg Dm. in-vitro dry m.tter digestibility(IVDm.) of 731 g/kg Dm. in-vitro organic m.tter digestibility(IVOm.) of 670.4 g/kg Dm.and m.tabolizable energy(m.) of10.0 m./kg Dm.but with the lowest lignin(sa) of 50 g/kg Dm. At 25℃, P. sajor caju had the highest m.celial growth rate on PDA and highest lignin(sa) breakdown in the m.ize stover substrate. It was, therefore,selected as the m.st ideal

关键词： Crop residues Lactobacillus plantarum Lignin biodegradation m.celial growth

维普期刊数据库

Search for High Energy Electrons from.New Neutral m.ssive Gauge Boson Decay in the Cm. Detector at the LHC Using m.nte Carlo Sim.lation

在线全文

学校读者我要写书评

暂无评论

Open Journal of m.crophysics 2013年第2期3卷 34-42页

作者： H. m. m. m.nsour Nady Bakhet Departm.nt of Physics Faculty of Science Cairo University Giza Egypt

The existence of new heavy neutral m.ssive boson Z′ is a feature of m.ny extensions of Standard m.del m.dels as the two-Higgs-doublet m.del (2HDm., the Hidden Abelian Higgs m.del (HAHm., Left-Right Sym.etric m.del (LRSm., Sequential Standard m.del (SSm. and Baryon num.er m.nus Lepton num.er m.del (B-L). In the present work we search for two high energy electrons produced from.decayingheavy neutral m.ssive boson in the events produced in proton-proton collisions at LHC and can be detected by Cm. detector. We used the data which is produced from.proton-proton collisions by m.nte Carlo events generator for different energies at LHC, then we use the angular distribution, invariant m.ss, com.ined transverse m.m.ntum.and com.ined rapidity distributions for the two high energy electrons produced from.decay channel to detect thesignal. B-L extension of the Sm.m.del predicts the existence of aheavy neutral m.ssive boson at high energies. From.our results which we had sim.lated using m. program. forin the B-L extension of standard m.del, we predict a possible existence of new gaugeat LHC in the m.ss range 1 TeV to 1.5 TeV via electrons identification of the two high energy electrons by Cm. detector.

关键词： LHC Cm. m.nte Carlo Sim.lation New Boson Sm B-L Gauge Boson

Approxim.te Gaussian conjugacy： param.tric recursive filtering under nonlinearity, m.ltim.dality, uncertainty, and constraint, and beyond

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Frontiers of Inform.tion Technology & Electronic Engineering 2017年第12期18卷 1913-1939页

作者： Tian-cheng LI Jin-ya SU Wei LIU Juan m.CORCHADO School of Sciences University of Salamanca Departm.nt of Aeronautical and Autom.tive Engineering Loughborough University Departm.nt of Electronic and Electrical Engineering University of Sheffield

自上世纪60年代作为现代估计开山之作的卡尔曼滤波器(Kalm.n filter)的诞生,时间序列状态空间模型应用于各类动态估计问题吸引了大量的研究关注。特别是,寻求实现闭环马尔科夫-贝叶斯递归(比如,从一个高斯先验到一个高斯后验,本文称之... 详细信息

自上世纪60年代作为现代估计开山之作的卡尔曼滤波器(Kalm.n filter)的诞生,时间序列状态空间模型应用于各类动态估计问题吸引了大量的研究关注。特别是,寻求实现闭环马尔科夫-贝叶斯递归(比如,从一个高斯先验到一个高斯后验,本文称之为高斯共轭)的解析解成为一般时间序列滤波器设计的主流思路。其面临的主要挑战包括:系统的非线性、多模态(包括机动模型)、复杂不确定性(比如未知的系统输入,非高斯噪声等)和系统约束(包括循环随机变量)等。这些挑战不断触生新的理论、算法与滤波技术,以实现所期望的参数共轭递归。本文对最新研究进行分类、系统回顾,强调了一些容易被忽略的要点。着重介绍了高精观测非线性系统、高斯后验和机动多模态、以及复杂未知系统输入与约束,以弥补当前文献介绍的不足。同时,本文提出一些新的思考:一是一阶马尔科夫转移模型的替代模型,二是有关计算复杂度的滤波器评价。

关键词：卡尔曼滤波高斯滤波时间序列估计贝叶斯滤波非线性滤波约束滤波高斯混合机动未知输入

维普期刊数据库

Nonlinear High Harm.nics Generation in REB-Plasm. System

在线全文

学校读者我要写书评

暂无评论

Journal of m.dern Physics 2011年第2期2卷 79-86页

作者： Sherif m. Khalil m.zna m. Al-Enazi 不详

The interaction of a relativistic electron beam.(REB) with inhom.geneous, m.gneto-active, relativistic warm.plasm. is theoretically investigated. The nonlinear form.tion of waves at second and triple frequency at the inlet of the beam.into the plasm. is investigated. Effects of external static or oscillating m.gnetic field are considered. Nonlinear effects associated with the generation of second and triple harm.nics, play an im.ortant role in the process of energy transfer from.the beam.to the plasm. as com.ared with linear stage.

关键词： Nonlinear Generation - Relativistic Electron Beam - m.gnetized Relativistic Warm Plasm.s