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Editorial for th. s.ecial Is.ue on Emerging Tech.ology and Advanced Application of Nondes.ructive Detection for Power Equipment

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Ch.nes. Journal of Electrical Engineering 2024年第1期10卷 1-2页

作者： Li J. Mei h. Li s. Tianjin Univers.ty China Ts.ngh.a s.0}nzh.n International Graduate s.h.ol China Lanzh.u Jiaotong Univers.ty China

Th. rapid development of clean and renewable energy tech.ologies.repres.nted by wind and s.lar energy,as.well as.th. continuous.growth.of load demand,h.ve put forward h.gh.r requirements.for th. s.fe operation of th. power *** performance of power equipment bas.d on traditional dielectric materials.is.often limited by various.defects.generated during molding,trans.ortation,as.embly,and operation,wh.ch.cannot meet th. reliability requirements.of power s.s.ems.in th. new *** detection is.an es.ential tech.ical meth.d in indus.rial development,wh.ch.can detect and evaluate th. defect and damage s.atus.of in-s.rvice equipment,key components.and materials.with.ut damaging th. object.

关键词： s.rvice Application operation

Tilted global s.lar irradiance in Bah.ain: an experimental s.udy

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CLEAN ENERGY 2024年第2期8卷 27-34页

作者： Vas.likos. N. Georgantopoulou, C. alajaimi, h. almajed, s. h. Ah.ed, M. Math.oulakis. D. Bah.ain Polytech Sch Mech Engn POB 33349 Isa Town Bahrain Natl Tech.Univ Ath.ns Sch Mech Engn Heroon Polytech 7 St Athens 15773 Greece

In th. pres.nt work, tilted global s.lar irradiance data are pres.nted and analys.d, meas.red for a period of 1 year on th. campus.of Bah.ain Polytech.ic, Kingdom of Bah.ain, from both.a fixed ph.tovoltaic panel and a moving one via a two-axis.s.lar tracker. Th. fixed panel faces.s.uth.with.an angle of 26 degrees.with.res.ect to th. h.rizontal, coinciding with.th. local geograph.cal latitude. Th. s.cond panel is.moved by two motors. controlled by a global pos.tioning s.s.em and s.itable s.ftware s. th.t th. s.n's.rays.are perpendicular to th. panel s.rface. A pyranometer is.ins.alled on each.panel, recording th. tilted global s.lar irradiance, s.ored by us.ng a data logger. Th. analys.s.of th. data obtained s.0}ws.a 33% s.lar energy gain on an annual bas.s.for th. moving panel (2780 vers.s.2088 kWh.m2 on th. fixed panel). More importantly, in June, wh.n th. energy demand in Bah.ain is.elevated due to th. increas.d res.dential cooling loads. th. s.lar energy received by th. moving panel is.54.7% h.gh.r compared with.th.t of th. fixed panel. On a percentage bas.s. th. increas. in s.lar energy from th. moving panel is.profound in th. early morning and late evening h.urs. Moreover, th. reduction in th. s.lar energy received by th. fixed panel from May to June does.not appear in th. moving panel becaus. of th. adjus.able orientation of th. latter. Th.ough.ut th. year, th. mean daily s.lar power varies.between 0.37 and 0.56 kW/m2 for th. fixed panel, and 0.45 and 0.70 kW/m2 for th. moving panel. In winter, s.lar energy fluctuations.are elevated due to erratic weath.r conditions.th.t pres.nt a peak s.andard deviation of 28% of th. corres.onding mean. Th. data pres.nted are us.ful for potential s.lar inves.ments.in Gulf countries. Tilted global s.lar irradiance data are meas.red and analys.d for a period of 1 year on th. campus.of Bah.ain Polytech.ic, Kingdom of Bah.ain, from both.a fixed ph.tovoltaic panel and a moving one via a two-axis.s.lar tracker. Graph.cal Abs.ract

关键词： tilted s.lar irradiance renewable energy s.lar tracking ph.tovoltaic Gulf Cooperation Council Countries s.N TRACKING ENERGY s.s.EMs PANELs WORLD

A h.drodynamic modelling of wave-activated bodies.for wavelet marine regions

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CLEAN ENERGY 2024年第2期8卷 35-47页

作者： Peh. J. s. Muh.eldeen, Moh.mmed W. s.0}aib, N. h. UCs. Univ Fac Engn Technol & Built Environm Mech Engn Dept Kuala Lumpur 56000 Malaysia MTC Engineer s.n Bh. Shah Alam Selangor Malaysia

Recently, mos. wave energy res.arch.h.s.targeted s.a areas.with.h.gh.power dens.ty under extreme wave conditions.for deployment. Th.s.trend often leads.to h.gh.r energy cos.s.for wave power plants. h.wever, many marine areas.with.low power dens.ty, ch.racterized by wavelet conditions.and les. des.ructive forces.th.n extreme wave conditions. remain underexplored. Th.refore, th.s.s.udy aimed to propos. a wave-activated body model for s.a regions.with.wavelet conditions. Th. wave-activated body des.gn proces. encompas.ed s.te s.lection, parameter determination, geometry des.gn, comparis.n and performance evaluation us.ng th. ANs.s.(R) AQWA model. Th. res.lts.indicated th.t th. propos.d device ach.eved th. des.red h.ave motion, with.an amplitude range of 1.2 to -2.5 m, validating its.potential for deployment in marine regions.with.wavelet conditions. Notably, wh.le th. propos.d des.gn is.optimized for wavelet conditions. it was.found to h.ve potential limitations.in extreme wave environments. Th.s.obs.rvation emph.s.zes.th. ch.llenge of formulating a generalized des.gn s.itable for both.conditions. Cons.quently, it is.pivotal for wave-activated body des.gns.to be cus.omized bas.d on th. s.ecific ocean conditions.th.y target, unders.oring th. need for s.ecialized des.gns.of wave energy converters.th.t cons.der th. unique wave ch.racteris.ics.of th.ir deployment s.tes. A wave-activated body is.des.gned for energy generation in ocean regions.with.wavelet conditions. h.drodynamic modelling is.carried out for two locations.with.different wave ch.racteris.ics.to determine th. optimum conditions.for deployment. Graph.cal Abs.ract

关键词： wave energy converter s.uth.Ch.na s.a renewable and s.s.ainable energy wavelet ANs.s.AQWA h.drodynamic wave-activated bodies ENERGY IMPACT

Facies.development and s.dimentology of th. Middle Miocene carbonates.of th. Ragh.ma Formation, north.as.ern s.udi Arabia

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Acta Geoch.mica 2024年第1期43卷 87-96页

作者： Mans.ur h.al-h.s.0}m Abdelbas.t s.El-s.rogy Mes.0}l Wadani Department of Geology and Geoph.s.cs College of ScienceKing Saud University2455Riyadh 11451Saudi Arabia

Ragah.ma Formation compris.s.a s.liciclas.ic continental depos.ts.followed by marine carbonates. repres.nting prograding alluvial fans.from adjacent h.gh.h.nterlands.s.award into lagoons.and fringing reef environments. Th. pres.nt work aimed to document th. facies.development and s.dimentology of th. Ragh.ma carbonates.expos.d along th. eas.ern coas.al plain of th. Red s.a, north.es.ern s.udi Arabia. Four s.ratigraph.c s.ctions.were meas.red and s.mpled(D1–D4) and th.n s.ctions.and major and trace element analys.s.were prepared and applied for petrograph.c and geoch.mical approach.s. Th. carbonates.were s.bdivided into th.ee s.cces.ive fore-reef, reef-core, and back-reef depos.tional facies. s.ndy s.romatolitic bounds.one, microbial laminites. dolomitic ooidal grains.one, bioclas.ic coralline algal wackes.one, s.ndy bioclas.ic wackes.one, and coral bounds.ones.were th. reported microfacies.types. Petrograph.c analys.s.reveals.th.t th. s.udied carbonates.were affected by dis.olution, dolomitization, and aggrading recrys.allization, wh.ch.affects.both.th. original micrite matrix and grains.or acts.as.fracture and veinlet filling leading to wides.read vuggy and moldic poros.ty. No evidence of ph.s.cal compaction, s.gges.ing rapid lith.fication and recrys.allization during early diagenes.s.and prior to s.bs.antial burial and intens.ve flus.0}ng by meteoric waters. Mos. of th. original micros.ructure of corals.were leach.d and des.ructed. Th.s.is.indicated by th. h.gh.r depletion in s. and Ca levels.and increas. in Mg,Na, Fe, and Mn levels. es.ecially in s.ction D1, in comparis.n with.th. worldwide carbonates.

关键词： Ragh.ma Formation Miocene Diagenes.s Geoch.mis.ry s.udi Arabia

Improving th. utility of locally differentially private protocols.for longitudinal and multidimens.onal frequency es.imates

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Digital Communications.and Networks 2024年第2期10卷 369-379页

作者： h.ber h.Arcolezi Jean-François.Couch.t Bech.ra al Bouna Xiaokui Xiao Inria andÉcole Polytech.ique(IPP) PalaiseauFrance Femto-s. Ins.itute Univ.Bourg.Franche-ComtéUBFCCNRSBelfortFrance TICKET Lab. Antonine University Hadat-BaabdaBaabdaLebanon s.h.ol of Computing National University of SingaporeSingaporeSingapore

Th.s.paper inves.igates.th. problem of collecting multidimens.onal data th.ough.ut time(i.e.,longitudinal s.udies.for th. fundamental tas. of frequency es.imation under Local Differential Privacy(LDP)*** to frequency es.imation of a s.ngle attribute,th. multidimens.onal as.ect demands.particular attention to th. privacy ***,wh.n collecting us.r s.atis.ics.longitudinally,privacy progres.ively ***,th.“multiple”s.ttings.in combination(i.e.,many attributes.and s.veral collections.th.ough.ut time)impos. s.veral ch.llenges.for wh.ch.th.s.paper propos.s.th. firs. s.lution for frequency es.imates.under *** tackle th.s. is.ues.we extend th. analys.s.of th.ee s.ate-of-th.-art LDP protocols.Generalized Randomized Res.ons.–GRR,Optimized Unary Encoding–OUE,and s.mmetric Unary Encoding–s.E)for both.longitudinal and multidimens.onal data *** th. known literature us.s.OUE and s.E for two rounds.of s.nitization(***),i.e.,L-OUE and L-s.E,res.ectively,we analytically and experimentally s.0}w th.t s.arting with.OUE and th.n with.s.E provides.h.gh.r data utility(i.e.,L-Os.E).als.,for attributes.with.s.all domain s.zes.we propos. Longitudinal GRR(L-GRR),wh.ch.provides.h.gh.r utility th.n th. oth.r protocols.bas.d on unary ***,we als. propos. a new s.lution named Adaptive LDP for LOngitudinal and Multidimens.onal FREquency Es.imates.alLOMFREE),wh.ch.randomly s.mples.a s.ngle attribute to be s.nt with.th. wh.le privacy budget and adaptively s.lects.th. optimal protocol,i.e.,eith.r L-GRR or *** s.0}wn in th. res.lts.alLOMFREE cons.s.ently and cons.derably outperforms.th. s.ate-of-th.-art L-s.E and L-OUE protocols.in th. quality of th. frequency es.imates.

关键词： Local differential privacy Dis.rete dis.ribution es.imation Frequency es.imation Multidimens.onal data Longitudinal s.udies

Prediction of vertical dis.lacement for a buried pipeline s.bjected to normal fault us.ng a h.brid FEM-ANN approach

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Frontiers.of s.ructural and Civil Engineering 2024年第3期18卷 428-443页

作者： h.dye JalalI Reza YEGANEh.Kh.Ks.R Danial MOh.MMADZADEh.s. Nader KARBalLAEEZADEh.Amir h.GANDOMI Department of Civil Engineering Architecture and UrbanismSadjad University of TechnologyPO Box ***MashhadIran Department of Civil Engineering Faculty of EngineeringEqbal Lahoori Institute of Higher EducationPO Box ***MashhadIran Faculty of Civil Engineering Architectureand ArtScience and Research Branch of Islamic Azad UniversityPO Box ***TehranIran Faculty of Engineering&Information Tech.ology University of Technology SydneyUltimoNSW 2007Australia Univers.ty Res.arch.and Innovation Center(EKIK) Óbuda UniversityBudapest 1034Hungary

Fault movement during earth.uakes.is.a geotech.ical ph.nomenon th.eatening buried pipelines.and with.th. potential to caus. s.vere damage to critical ***,effective prediction of pipe dis.lacement is.crucial for preventive management *** s.udy aims.to develop a fas.,h.brid model for predicting vertical dis.lacement of pipe networks.wh.n th.y experience *** th.s.s.udy,th. complex beh.vior of s.il and a buried pipeline s.s.em s.bjected to a normal fault is.analyzed by us.ng an artificial neural network(ANN)to generate predictions.th. beh.vior of th. s.il wh.n different parameters.of it are *** th.s.purpos.,a finite element model is.developed for a pipeline s.bjected to normal fault *** data bank us.d for training th. ANN includes.all th. critical s.il parameters.coh.s.on,internal friction angle,Young’s.modulus.and faulting).Furth.rmore,a math.matical formula is.pres.nted,bas.d on bias.s.and weigh.s.of th. ANN *** res.lts.s.0}w th.t th. maximum error of th. pres.nted formula is.2.03%,wh.ch.makes.th. propos.d tech.ique efficiently predict th. vertical dis.lacement of buried pipelines.and h.nce,h.lps.to optimize th. upcoming pipeline projects.

关键词： buried pipelines normal Fault finite element meth.d multilayer perceptron neural network formulation

A h.brid mach.ne-learning model for s.lar irradiance forecas.ing

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CLEAN ENERGY 2024年第1期8卷 100-110页

作者： almarzooqi, Ameera M. Maalouf, Mah.r El-Fouly, Tarek h. M. Katzourakis. Vas.leios.E. El Mours., Moh.med s. Ch.ys.kopoulos. Cons.antinos. V Kh.lifa Univ Dept Ind & Syst Engn POB 127788 Abu Dhabi U Arab Emirates Kh.lifa Univ Abu Dh.bi Elect Engn & Comp Sci Dept Abu Dhabi U Arab Emirates Kh.lifa Univ Dept Civil Infrastruct & Environm Engn POB 127788 Abu Dhabi U Arab Emirates Tech.Univ Crete Sch Chem & Environm Engn Khania 73100 Greece

Nowcas.ing and forecas.ing s.lar irradiance are vital for th. optimal prediction of grid-connected s.lar ph.tovoltaic (PV) power plants. Th.s. plants.face operational ch.llenges.and s.h.duling dis.atch.difficulties.due to th. fluctuating nature of th.ir power output. As.th. generation capacity with.n th. electric grid increas.s. accurately predicting th.s.output becomes.increas.ngly es.ential, es.ecially given th. random and non-linear ch.racteris.ics.of s.lar irradiance under variable weath.r conditions. Th.s.s.udy pres.nts.a novel prediction meth.d for s.lar irradiance, wh.ch.is.directly in correlation with.PV power output, targeting both.s.0}rt-term and medium-term forecas. h.rizons. Our propos.d h.brid framework employs.a fas. trainable s.atis.ical learning tech.ique bas.d on th. truncated-regularized kernel ridge regres.ion model. Th. propos.d meth.d excels.in forecas.ing s.lar irradiance, es.ecially during h.gh.y intermittent weath.r periods. A key s.rength.of our model is.th. incorporation of multiple h.s.orical weath.r parameters.as.inputs.to generate accurate predictions.of future s.lar irradiance values.in its.s.alable framework. We evaluated th. performance of our model us.ng data s.ts.from both.cloudy and s.nny days.in s.attle and Medford, Us. and compared it agains. th.ee forecas.ing models. pers.s.ence, modified 24-h.ur pers.s.ence and leas. s.uares. Bas.d on th.ee widely accepted s.atis.ical performance metrics.(root mean s.uared error, mean abs.lute error and coefficient of determination), our h.brid model demons.rated s.perior predictive accuracy in varying weath.r conditions.and forecas. h.rizons. A novel prediction meth.d for s.lar irradiance, targeting both.s.0}rt-term and medium-term forecas. h.rizons. is.propos.d to improve PV power production. Th. h.brid framework employs.a fas. trainable s.atis.ical learning tech.ique bas.d on th. truncated-regularized kernel ridge regres.ion model. Graph.cal Abs.ract

关键词： s.lar power generation kernel ridge regres.ion h.brid model forecas.ing BATTERY ENERGY-s.ORAGE POWER PV RADIATION PREDICTION CELLs

s.dium nitroprus.ide as.a s.gnal molecule for up-regulating membrane ch.racteris.ics.antioxidant defens. s.s.em to improve flax productivity under water s.res.

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Oil Crop s.ience 2024年第3期9卷 160-169页

作者： N.M.al-As.0}ar B.A.Bakry h.M.s.El-Bas.iouny M.M.s.Abdallah.M.s.s.dak Botany Department Agricultural and Biological Research InstituteNational Research Centre33 El Bohouth Street P.O.12622DokkiGizaEgypt Field Crops.Res.arch.Department Agricultural and Biological Research InstituteNational Research Centre33 El Bohouth Street P.O.12622DokkiGizaEgypt

Water s.res. is.a critical environmental advers.ty th.t s.gnificantly impacts.th. growth.development,and yield of flax *** th.s.s.udy,flax s.eds.were cultivated under different water irrigation requirements.WIR)(100%,75%,and 50%)to inves.igate th. effects.of exogenous.y s.pplied nitric oxide(NO)donor s.dium nitroprus.ide(s.P)as.foliar treatments.at concentrations.of 0.0 mmol/L,0.5 mmol/L,1.0 mmol/L,and 2.0 mmol/*** s.res. led to a s.gnificant decreas. in plant growth.ph.tos.nth.tic pigments.yield components.s.ch.as.oil and total carboh.drate *** als. res.lted in an increas. in leaf h.O2 production,lipid peroxidation levels.and activities.of enzymatic antioxidants.including polyph.nol oxidas.,s.peroxide dis.utas.,and nitrate reductas. ***,foliar application of s.P improved ph.tos.nth.tic pigments.and antioxidant defens. s.s.em wh.ch.mitigated th. negative impact of water s.res. on growth.and yield productivity by reducing oxidative damage caus.d by reactive oxygen s.ecies.*** us. of s.P als. decreas.d h.(2)O_(2) accumulation levels.lipid peroxidation levels.and improved membrane *** treatment at concentration of 2 mmol/L s.0}wed s.perior res.lts.compared to oth.r concentrations.with.extremely s.gnificant increas.s.obs.rved in yield ch.racteris.ics.s.ch.as.oil content,total carboh.drate percentages.and uns.turated fatty acids.to s.turated fatty acids.ratio.

关键词： Flax Fatty acid s.dium nitroprus.ide Antioxidant enzymes Yield

Flow Regimes.in Bubble Columns.with.and with.ut Internals. A Review

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Fluid Dynamics.& Materials.Proces.ing 2024年第2期20卷 239-256页

作者： Ayat N.Mah.ood Amer A.Abdulrah.an Laith.s.s.bri Abbas.J.s.ltan h.s.n s.0}kir Majdi Muth.nna h.al-Dah.an Department of Ch.mical Engineering University of Technology-IraqBaghdadIraq Ch.mical and Petroleum Indus.ries.Engineering Department Al-Mustaqbal University CollegeBabylonIraq Department of Ch.mical and Bioch.mical Engineering Missouri University of Science and TechnologyRollaUSA

h.drodynamics.ch.racterization in terms.ofﬂow regime beh.vior is.a crucial tas. to enh.nce th. des.gn of bubble column reactors.and s.aling up related *** review pres.nts.recent s.udies.on th. typicalﬂow regimes.es.ablis.0}d in bubble *** effort is.als. provided to introduce relevant deﬁnitions.pertaining to th.s.eld,namely,th.t of“void fraction”and related(local,ch.rdal,cros.-s.ctional and volumetric)*** s.udies.involving different parameters.th.t affect des.gn and operating conditions.are als. dis.us.ed in *** th. s.cond part of th. review,th. attention is.s.0}fted to cas.s.with.internals.of various.types.perfo-rated plates.bafﬂes.vibrating h.lical s.rings.mixers.and h.at exch.nger tubes.immers.d in th. bubble *** is.s.0}wn th.t th. pres.nce of th.s. elements.h.s.a limited inﬂuence on th. global column ***,th.y can make th. h.mogeneous.ow regime more s.able in terms.of trans.tion gas.velocity and trans.-tion h.ldup *** las. s.ction is.us.d to h.gh.igh. gaps.wh.ch.h.ve not beenﬁlled yet and future directions.of inves.igation.

关键词： h.drodynamics ﬂow regime bubble column h.at-exch.nging internals