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Journa. of Power a.d Energy Engineering 2024年第9期12卷 37-49页

作者： Mosta.a.i. Sa.eh Ga.er el-Sa.dy a.i M. Yousef el-noby a. i.rahi. a.fa.a. Compa.y Mecca Saudi Arabia Depa.tment of electrica. Engineering Faculty of Engineering Asyut University Asyut Egypt

Distributed genera.ors now is widely used in electrica. power networks, in some ca.es it works sea.ona.ly, a.d some types works a. specia. wea.her conditions like photo volta.c systems a.d wind energy, a.d due to this continuous cha.ges in genera.ion condition, the fa.lt current level in network will be a.fected, this cha.ges in fa.lt current level will a.fect in the coordina.ion between protection rela.s a.d to keep the coordina.ion a. right wa., a. a.a.tive protection system is required tha. ca. a.a.tive its setting a.cording to genera.ion cha.ges, the fa.lt current level in ea.h ca.e is eva.ua.ed using ETa. softwa.e, a.d the required rela. setting in ea.h ca.e is a.so eva.ua.ed using Grey Wolf Optimizer (GWO) a.gorithm, a.d to select suita.le setting which required in ea.h condition, to select the a.tive setting group of protection rela. a.cording to genera.ion ca.a.ity, centra. protection unite ca. be used, a.d to improve protection sta.ility a.d minimizing rela.s tripping time, a.proposed method for selecting suita.le ba.kup rela. is used, which lea.s to decrea.e rela.s tripping time a.d increa.e system sta.ility, output settings for rela.s in a.l ca.es a.hieved our constra.ns.

关键词： Directiona. Overcurrent Rela. Protection Coordina.ion Distributed Genera.ors Centra. Protection Unite Multiple Setting Group Protection Rela.

考虑气动载荷的超级高铁系统混合悬挂吊舱稳定性分析

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a.ta.Mecha.ica.Sinica 2024年第4期40卷 199-211页

作者： Ha.ed Petoft a.ba. rahi Va.id Fa.ha.i Fa.ulty of Mecha.ica. a.d Energy Engineering Shahid Beheshti UniversityTehran***Iran

超级高铁运输技术(HTT)是一种新型运输方式.它的工作原理是将一种称为吊舱的超高速车辆移动到低气压管中.本文研究了考虑空气动力载荷的新型混合悬浮吊舱的稳定性分析.拟议的吊舱包含两个悬浮装置:磁悬浮(EMS)和气垫.在这方面,气垫有助... 详细信息

超级高铁运输技术(HTT)是一种新型运输方式.它的工作原理是将一种称为吊舱的超高速车辆移动到低气压管中.本文研究了考虑空气动力载荷的新型混合悬浮吊舱的稳定性分析.拟议的吊舱包含两个悬浮装置:磁悬浮(EMS)和气垫.在这方面,气垫有助于系统克服整体重量.EMS悬架有两个比例微分(PD)控制器,可在存在空气动力载荷的情况下稳定吊舱的运动:一个控制垂直位移,另一个控制横向运动.本文建立了吊舱的五自由度动力学模型,包括吊舱的垂直和横向位移以及吊舱的俯仰、滚转和偏航力矩.介绍了气垫、磁悬浮和空气动力载荷的动态模型.求解相关动力学方程后,研究了控制器参数和气动升力和阻力载荷对吊舱稳定性的影响.此外,还分析了控制器系数和其他一些吊舱设计参数(包括气垫刚度、总质量和管内气压)对临界速度的影响.

关键词：横向运动空气动力载荷横向位移磁悬浮吊舱偏航力矩混合悬浮整体重量

Genetic Va.ia.ility a.d Phenotypic Correla.ions Study a.ong Gra.n Qua.ity Tra.ts a.d Minera. elements Concentra.ions in Colored a.d Non-Colored Rice (Oryza.sa.iva.L.)

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Phyton-interna.iona. Journa. of Experimenta. Bota.y 2024年第7期93卷 1733-1748页

作者： a.el a.Rezk Moha.ed M.el-Ma.ky Heba.i.Moha.ed Hossa. S.el-Belta.i a.ricultura. Biotechnology Depa.tment College of Agricultural and Food ScienceKing Faisal UniversityAl-Ahsa31982Saudi Arabia Pla.t Pa.hology Resea.ch institute Agriculture Research CenterGiza12619Egypt Rice Resea.ch a.d Tra.ning Center Field Crop Research InstituteAgriculture Research Center33717Egypt Biologica. a.d Geologica. Sciences Depa.tment Faculty of EducationAin Shams UniversityCairo11511Egypt Biochemistry Depa.tment Faculty of AgricultureCairo UniversityGiza12613Egypt

Twenty-four rice genotypes were exa.ined to a.sess genetic va.ia.ility,herita.ility,a.d correla.ions for seven-gra.n qua.ity tra.ts,eight nutritiona. elements,a.d *** revea.ed signiﬁca.t differences for the qua.ity tra.ts *** every tra.t under study,the phenotypic coefﬁcient of va.ia.ion wa. higher tha. the correspon-dence genotypic coefﬁcient of *** in a.broa. sense va.ied from 29.75%for gra.n length to 98.31%for the elonga.ion *** percenta.e recovery ha. a.highly signiﬁca.t positive correla.ion with milling a.d hea. rice ***,milling percenta.e ha. a.highly positive correla.ion with hea. rice *** a.ylose percenta.e,a.l the genotypes belonged to low a.ylose except the Ha.sa.i-1 va.iety,which ha. intermedia.e a.ylose *** nutrition contents of ma.nesium(Mg),sodium(Na.,pota.-sium(K),ca.cium(Ca.,copper(Cu),ma.ga.ese(Mn),zinc(Zn),iron(Fe),or protein percenta.e ga.e different va.ia.ions for 24 rice genotypes under a.l the nutritiona. *** the 24 genotypes,ten rice genotypes–HighNutrient-1,HighNutrient-2,HighNutrient-9,HighNutrient-8,HighNutrient-3,Ha.sa.i-2,HighNutrient-7,HighNutrient-6,Ha.sa.i-1,a.d HighNutrient-4–ha. the highest heist va.ue for a.l nutritiona. a.d protein con-tents,a.d could be used a. a.donor to improving new *** wa. a.positive a.d signiﬁca.t correla.ion between ma.nesium Mg,K,Zn a.d ***,K ha. a.positive correla.ion with zinc Zn,Fe,a.d protein *** a.a.ysis wa. divided into two groups:theﬁrst group included a.l genotypes rich in nutri-ents,while the rema.ning genotypes with low nutritiona. content were included in the second group.

关键词： a.ylose cluster a.a.ysis genotypes gra.n qua.ity minera. nutrition rice

Effect of high tempera.ure short time infra.ed roa.ting of pea.uts

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Journa. of Future Foods 2024年第2期4卷 173-178页

作者： rahi Gola.i Chinglen Leisha.gthem Hongwei Xia. Qi Zha.g P.P.Suta. Depa.tment of Food Process Engineering National Institute of Technology RourkelaOdisha 769008India College of Engineering China Agricultural UniversityBeijing 100083China College of Mecha.ica. Engineering Yangzhou UniversityYangzhou 225127China

Roa.ting is the most common processing method tha. enha.ces color,a.d *** this study,infra.ed roa.ting of pea.uts wa. done using a. infra.ed rota.y *** wa. opera.ed a. 90%infra.ed power(630 W)with different rota.ing speed(1 a.d 2 r/min).The effect of roa.ting wa. studied a. different moisture levels(7.66%,11.49%,a.d 13.72%db).From the study,the color pa.a.eter,L*va.ue,wa. found to be significa.tly different(Pa.d it decrea.ed with the decrea.e in rota.ing speed,a.d the∆E va.ue va.ies from 2.32 to *** a.so showed tha. the a.tioxida.t a.tivity decrea.ed with the reduction in rota.ing speed a. lesser revolutions took longer roa.ting time,a.d the va.ues decrea.ed from 84.34%to 71.74%.Minima. cha.ges in tota. phenolic content were found a.d va.ied from 3.62 to 2.10 mg/g Ga.,a. a.propria.e limit for good-qua.ity roa.ted *** ha.dness of roa.ted pea.uts ra.ged from 12.25 to 39.43 *** content 13.72%,a.d 1 r/min is the best possible trea.ment for infra.ed pea.ut roa.ting,significa.tly enha.cing the qua.ity of *** study concluded tha. high-power short-time infra.ed roa.ting could give good-qua.ity roa.ted pea.uts with optimum bioa.tive compounds.

关键词： Roa.ting infra.ed Tota. phenolic content a.tioxida.t a.tivity

a.Hybrid Cybersecurity a.gorithm for Digita. ima.e Tra.smission over a.va.ced Communica.ion Cha.nel Models

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Computers, Ma.eria.s & Continua 2024年第4期79卷 201-241页

作者： Na.la. F.Solima. Fa.ma.E.Fa.l-a.la. Wa.id el-Sha.a. Ma.moud i.a.y Ma.li a.a.dulha.ith Fa.hi E.a.d el-Sa.ie Depa.tment of informa.ion Technology College of Computer and Information SciencesPrincess Nourah bint Abdulrahman UniversityP.O.Box 84428Riyadh11671Saudi Arabia Depa.tment of electronics a.d Communica.ions Faculty of EngineeringZagazig UniversityZagazig44519Egypt Security Engineering La. Computer Science DepartmentPrince Sultan UniversityRiyadh11586Saudi Arabia Depa.tment of electronics a.d electrica. Communica.ions Engineering Faculty of Electronic EngineeringMenoufia UniversityMenouf32952Egypt

The efficient tra.smission of ima.es,which pla.s a.la.ge role inwireless communica.ion systems,poses a.significa.t cha.lenge in the growth of multimedia.***-qua.ity ima.es require well-tuned communica.ion *** Single Ca.rier Frequency Division Multiple a.cess(SC-FDMa.is a.opted for broa.ba.d wireless communica.ions,beca.se of its low sensitivity to ca.rier frequency offsets a.d low Pea.-to-a.era.e Power Ra.io(Pa.R).Da.a.tra.smission through open-cha.nel networks requires much concentra.ion on security,relia.ility,a.d *** da.a.need a.spa.e a.a. fromuna.thorized a.cess,modifica.ion,or *** requirements a.e to be fulfilled by digita. ima.e wa.erma.king a.d *** pa.er isma.nly concerned with secure ima.e communica.ion over the wireless SC-FDMa.systema. a. a.opted communica.ion *** introduces a.robust ima.e communica.ion fra.ework over SC-FDMa.tha. comprises digita. ima.e wa.erma.king a.d encryption to improve ima.e security,while ma.nta.ning a.high-qua.ity reconstruction of ima.es a. the receiver *** proposed fra.ework a.lows ima.e wa.erma.king ba.ed on the Discrete Cosine Tra.sform(DCT)merged with the Singula. Va.ue Decomposition(SVD)in the so-ca.led DCT-SVD *** a.dition,ima.e encryption is implemented ba.ed on cha.s a.d DNa.*** encrypted wa.erma.ked ima.es a.e then tra.smitted through the wireless SC-FDMa.*** linea.MinimumMea. Squa.e Error(MMSE)equa.izer is investiga.ed in this pa.er to mitiga.e the effect of cha.nel fa.ing a.d noise on the tra.smitted *** subca.rier ma.ping schemes,na.ely loca.ized a.d interlea.ed schemes,a.e compa.ed in this *** study depends on different cha.nelmodels,na.ely Pedestria.a.ndVehicula.a.with a.modula.ion technique na.edQua.ra.urea.plitude Modula.ion(Qa.).Extensive simula.ion experiments a.e conducted a.d introduced in this pa.er for efficient tra.smission of encrypted wa.erma.ked *** a.dition,different va.ia.ts of SC-FDMa.ba.

关键词： Cybersecurity a.plica.ions ima.e tra.smission cha.nel models modula.ion techniques wa.erma.king a.d encryption

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几何形状对气垫升力的影响研究

哈尔滨工程大学学报（英文版） 2024年第1期23卷 74-84页

作者： Ha.ed Petoft Va.id Fa.ha.i a.ba. rahi Fa.ulty of Mecha.ica. a.d Energy Engineering Shahid Beheshti UniversityTehran ***Iran

One of the crucia. a.d cha.lenging issues for resea.chers is presenting a. a.propria.e a.proa.h to eva.ua.e the a.rodyna.ic cha.a.teristics of a.r cushion vehicles(a.Vs)in terms of system design *** of these issues includes introducing a.suita.le a.proa.h to a.a.yze the effect of geometric sha.es on the a.rodyna.ic cha.a.teristics of *** ma.n novelty of this pa.er lies in presenting a. innova.ive method to study the geometric sha.e effect on a.r cushion lift force,which ha. not been investiga.ed thus ***,this pa.er introduces a.new a.proxima.e ma.hema.ica. formula.for ca.cula.ing the a.r cushion lift force in terms of pa.a.eters,including the a.r ga.,la.era. ga.s,a.r inlet velocity,a.d sca.ing fa.tor for the first ***,we ca.cula.e the a.rodyna.ic lift force a.plied to nine different sha.es of the a.r cushions used in the a.Vs in the present pa.er through the a.SYS Fluent *** geometrica. sha.es studied in this pa.er a.e recta.gula.,squa.e,equila.era. tria.gle,circula.,elliptic sha.es,a.d four other combined sha.es,including circle-recta.gle,circle-squa.e,hexa.ona.,a.d fillet *** showed tha. the cushion with a.circula. pa.tern produces the highest lift force a.ong other geometric sha.es with the sa.e *** increa.e in the cushion lift force ca. be a.tributed to the fillet with a.squa.e sha.e a.d its increa.ing ra.ius compa.ed with the squa.e sha.e.

关键词： Lift force a.r cushion vehicle Geometric sha.e Simula.ion Ga. inlet velocity Sca.ing fa.tor

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Sta.ility a.a.ysis of a.time-dela.ed Va. der Pol–Helmholtz–Duffing oscilla.or in fra.ta. spa.e with a.non-perturba.ive a.proa.h

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Communica.ions in Theoretica. Physics 2024年第4期76卷 22-31页

作者： Yusry O el-Dib Depa.tment of Ma.hema.ics Faculty of EducationAin Shams UniversityRoxyCairoEgypt

The time-dela.ed fra.ta. Va. der Pol–Helmholtz–Duffing(VPHD)oscilla.or is the subject of this pa.er,which explores its mecha.isms a.d highlights its sta.ility *** time-dela.ed technologies a.e currently ga.nering significa.t a.tention,the focus of this resea.ch rema.ns crucia.ly releva.t.a.non-perturba.ive a.proa.h is employed to refine a.d set the sta.e for the system under *** innova.ive methodologies introduced yield a. equiva.ent linea. differentia. equa.ion,mirroring the inherent nonlinea.ities of the ***,the incorpora.ion of qua.ra.ic nonlinea.ity into the frequency formula.represents a.cutting-edge *** a.a.ytica. solution's va.idity is corrobora.ed using a.numerica. *** conditions a.e a.certa.ned through the residua. Ga.erkin ***,it is observed tha. the dela. pa.a.eter,in the context of the fra.ta. system,reverses its sta.ilizing influence,impa.ting both the a.plitude of dela.ed velocity a.d the *** a.a.ytica. solution's precision is underscored by its close a.ignment with numerica. ***,the study revea.s tha. fra.ta. cha.a.teristics emula.e da.ping *** its a.plica.ility a.ross diverse nonlinea. dyna.ica. systems,this non-perturba.ive a.proa.h emerges a. a.promising a.enue for future resea.ch.

关键词： Va. der Pol-Helmholtz-Duffing oscilla.or fra.ta. spa.e time-dela. non-perturba.ive a.proa.h sta.ility a.a.ysis el-Dib's frequency formula

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La.da. qua.tiza.ion effects on da.ping Ka.a.a.a.solitons in electron–positron–ion pla.ma.in rota.ing ionized medium

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Communica.ions in Theoretica. Physics 2024年第10期 143-152页

作者： E i el-a.a.y S Hussa.n N a.hta. Depa.tment of Physics Faculty of Science Port Said University Theoretica. Physics Division (TPD) PINSTECH

For the dyna.ics of three-dimensiona. electron–positron–ion pla.ma., a.fluid qua.tum hydrodyna.ic model is proposed by considering La.da. qua.tiza.ion effects in dense ***–neutra. collisions in the presence of the Coriolis force a.e a.so considered. The a.plica.ion of the reductive perturba.ion technique produces a.wa.e evolution equa.ion represented by a.da.ped Korteweg–de Vries equa.ion. This equa.ion, however, is insufficient for describing wa.es in our system a. very low dispersion coefficients. a. a.result, we considered the highest-order perturba.ion, which resulted in the da.ped Ka.a.a.a.equa.ion. The effects of the ma.netic field, La.da. qua.tiza.ion, the ra.io of positron density to electron density, the ra.io of positron density to ion density, a.d the direction cosine on linea. dispersion la.s a. well a. soliton a.d conoida. solutions of the da.ped Ka.a.a.a.equa.ion a.e explored. The understa.ding from this resea.ch ca. contribute to the broa.er field of a.trophysics a.d a.d in the interpreta.ion of observa.iona. da.a.from white dwa.fs.

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Compa.ison between seismic a.a.ysis of twisting a.d regula. 52-story towers considering soil-structure intera.tion

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Ea.thqua.e Engineering a.d Engineering Vibra.ion 2024年第3期23卷 663-675页

作者： Moha.ed Na.uib a.ouelsa.d Moha.med Sha.ba. Sa.a. el Ba.a.a.y Moha.ed E.el Ma.a.y Structura. Engineering Depa.tment Faculty of EngineeringMansura UniversityMansoura 35511Egypt Fa.ulty of Engineering Delta University for Science and TechnologyGamasa 35712Egypt

a.dyna.ic a.a.ysis of both twisting a.d regula. towers is ca.ried out to determine the results of considering soil-structure intera.tion(SSi)on high-rise *** a.dition,the difference between the seismic performa.ce of using twisting towers over regula. ones is *** twisting tower is a.simula.ion of the Evolution Tower(Moscow).The towers’skeletons consist of RC elements a.d rest on a.reinforced concrete piled-ra.t *** soil model is considered a. multi-la.ered with the sa.e soil properties a. the zone chosen for the a.a.ysis(New Ma.soura.City,Egypt).The only difference between both towers is their sha.e in *** whole system is modelled a.d a.a.yzed in a.single step a. one full 3D model,which is known a. the direct a.proa.h in *** a.a.yses a.e ca.ried out using finite-element softwa.e(Mida. GTS NX).Dyna.ic output responses due to three records of seismic loa.s a.e proposed a.d presented in some *** on the results,it is concluded tha. SSi ha. a.considera.le effect on the dyna.ic response of ta.l buildings ma.nly beca.se of the founda.ion flexibility,a. it lea.s to lengthening the vibra.ion period,increa.ing the story drift a.d the ba.e shea. for both ca.es.

关键词： soil-structure intera.tion seismic a.a.ysis twisting towers ba.e shea. story drift finite element method Mida. GTS NX

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Gender-Ba.ed a.a.ysis of User Rea.tions to Fa.ebook Posts

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Big Da.a.Mining a.d a.a.ytics 2024年第1期7卷 75-86页

作者： Ya.sine el Moudene Ja.fa. idra.s Rida.el a.a.si a.derrahim Sa.our Ma.hema.ica. Engineering a.d Computer Science La.ora.ory Faculty of SciencesIbn Zohr UniversityAgadir 8706Morocco Depa.tment of Computer Science Ma.hema.ica.−High School of Technology Ibn Zohr UniversityAgadir 8706Morocco

Online Socia. Networks(OSNs)a.e ba.ed on the sha.ing of different types of informa.ion a.d on va.ious intera.tions(comments,rea.tions,a.d sha.ing).One of these importa.t a.tions is the emotiona. rea.tion to the *** diversity of rea.tion types a.a.la.le on Fa.ebook(na.ely FB)ena.les users to express their feelings,a.d its tra.ea.ility crea.es a.d enriches the users’emotiona. identity in the virtua. *** pa.er is ba.ed on the a.a.ysis of 119875012 FB rea.tions(Like,Love,Ha.a.Wow,Sa.,a.gry,Tha.kful,a.d Pride)ma.e a. multiple levels(publica.ions,comments,a.d sub-comments)to study a.d cla.sify the users’emotiona. beha.ior,visua.ize the distribution of different types of rea.tions,a.d a.a.yze the gender impa.t on emotion *** of these ca. be a.hieved by a.dressing these resea.ch questions:who rea.ts the most?Which emotion is the most expressed?

关键词： profiling knowledge extra.tion da.a.mining emotion mining socia. media da.a.cra.ling Fa.ebook rea.tions gender