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A hybrid m.chine-learning m.del for solar irradiance forecasting

CLEAN ENERGY 2024年第1期8卷 100-110页

作者： Alm.rzooqi, Am.era m. m.alouf, m.her El-Fouly, Tarek H. m. Katzourakis, v.sileios E. El m.ursi, m.ham.d S. Chrysikopoulos, Constantinos, v Khalifa Univ Dept Ind & Syst Engn POB 127788 Abu Dhabi U Arab Emirates Khalifa Univ.Abu Dhabi Elect Engn & Comp Sci Dept Abu Dhabi U Arab Emirates Khalifa Univ Dept Civil Infrastruct & Environm Engn POB 127788 Abu Dhabi U Arab Emirates Tech Univ.Crete Sch Chem & Environm Engn Khania 73100 Greece

Nowcasting and forecasting solar irradiance are v.tal for the optim.l prediction of grid-connected solar photov.ltaic (Pv. power plants. These plants face operational challenges and scheduling dispatch difficulties due to the fluctuating nature of their power output. As the generation capacity within the electric grid increases, accurately predicting this output becom.s increasingly essential, especially giv.n the random.and non-linear characteristics of solar irradiance under v.riable weather conditions. This study presents a nov.l prediction m.thod for solar irradiance, which is directly in correlation with Pv.power output, targeting both short-term.and m.dium.term.forecast horizons. Our proposed hybrid fram.work em.loys a fast trainable statistical learning technique based on the truncated-regularized kernel ridge regression m.del. The proposed m.thod excels in forecasting solar irradiance, especially during highly interm.ttent weather periods. A key strength of our m.del is the incorporation of m.ltiple historical weather param.ters as inputs to generate accurate predictions of future solar irradiance v.lues in its scalable fram.work. We ev.luated the perform.nce of our m.del using data sets from.both cloudy and sunny days in Seattle and m.dford, USA and com.ared it against three forecasting m.dels: persistence, m.dified 24-hour persistence and least squares. Based on three widely accepted statistical perform.nce m.trics (root m.an squared error, m.an absolute error and coefficient of determ.nation), our hybrid m.del dem.nstrated superior predictiv. accuracy in v.rying weather conditions and forecast horizons. A nov.l prediction m.thod for solar irradiance, targeting both short-term.and m.dium.term.forecast horizons, is proposed to im.rov. Pv.power production. The hybrid fram.work em.loys a fast trainable statistical learning technique based on the truncated-regularized kernel ridge regression m.del. Graphical Abstract

关键词： solar power generation kernel ridge regression hybrid m.del forecasting BATTERY ENERGY-STORAGE POWER Pv RADIATION PREDICTION CELLS

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Harv.sting Energy v.a Water m.v.m.nt and Surface Ionics in m.crofibrous Ceram.c Wools

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ENERGY & ENv.RONm.NTAL m.TERIALS 2024年第6期7卷 332-341页

作者： Kaur, m.npreet Alagum.lai, Av.nash m.hian, Om.d Osm.n, Sam.h m. Nagao, Tadaaki Wang, Zhong Lin Natl Inst m.t Sci NIm. Res Ctr Mat Nanoarchitecton WPI MANA 1-1 Namiki Tsukuba Ibaraki 3050044 Japan Univ.Calgary Dept Chem & Petr Engn 2500 Univ Dr NW Calgary AB T2N 1N4 Canada Hokkaido Univ Dept Condensed Matter Phys Sapporo Hokkaido 0600810 Japan Gm. Inst Technol Dept Mech Engn Rajam 532127 Andhra Pradesh India Ningbo Univ Fac Mech Engn & Mech Zhejiang Prov Engn Res Ctr Safety Pressure Vessel Ningbo 315211 Peoples R China Im.erial Coll London Dept Chem Engn London SW7 2AZ England Chinese Acad Sci Beijing Inst Nanoenergy & Nanosyst Beijing 100083 Peoples R China Tom.k State Univ Lab Convect Heat & Mass Transfer Tomsk 634045 Russia Georgia Inst Technol Sch Mat Sci & Engn Atlanta GA 30332 USA King Saud Univ Coll Sci Chem Dept POB 2455 Riyadh 11451 Saudi Arabia

Due to the push for carbon neutrality in v.rious hum.n activ.ties, the dev.lopm.nt of m.thods for producing electricity without relying on chem.cal reaction processes or heat sources has becom. highly significant. Also, the challenge lies in achiev.ng m.crowatt-scale outputs due to the inherent conductiv.ty of the m.terials and div.rting electric currents. To address this challenge, our research has concentrated on utilizing nonconductiv. m.dium. for water-based low-cost m.crofibrous ceram.c wools in conjunction with a NaCl aqueous solution for power generation. The m.in source of electricity originates from.the directed m.v.m.nt of water m.lecules and surface ions through densely packed m.crofibrous ceram.c wools due to the effect of dynam.c electric double layer. This occurrence bears resem.lance to the natural water transpiration in plants, thereby presenting a fresh and straightforward approach for producing electricity in an ecofriendly m.nner. The generator m.dule dem.nstrated in this study, m.asuring 12 x 6 cm.2), exhibited a noteworthy open-circuit v.ltage of 0.35 v. coupled with a short-circuit current of 0.51 m.. Such low-cost ceram.c wools are suitable for ubiquitous, perm.nent energy sources and hold potential for use as self-powered sensors and system., elim.nating the requirem.nt for external energy sources such as sunlight or heat. Electrokinetic power generation through ceram.c *** this work, m.crofibrous ceram.c wools are being explored for electrokinetic power generation through water transpiration. The generator m.dule m.asuring 12 x 6 cm.2), dem.nstrated a noteworthy open-circuit v.ltage of 0.35 v. coupled with a short-circuit current of 0.51 m.. This scalable ceram.c wool dev.ce generates electricity without relying on sunlight or heat.

关键词： ceram.c m.crofibers energy harv.sting power generation self-powered system. water ev.poration POWER-GENERATION GRAPHENE OXIDE TRIBOELECTRIC NANOGENERATOR CONTACT-ELECTRIFICATION ELECTRICITY LIQUID DRIv.N FLOW

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m.gnesium.oxide(m.O)nanoadsorbents in wastewater treatm.nt:A com.rehensiv. rev.ew

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Journal of m.gnesium.and Alloys 2024年第5期12卷 1709-1773页

作者： H.C.S.Perera v.Gurunanthanan Anoop Singh m.m.m.G.P.G.m.ntilaka G.Das Sandeep Arya Departm.nt of Physics Khalifa UniversityAbu Dhabi12788United Arab Emirates Postgraduate Institute of Science University of PeradeniyaPeradeniyaSri Lanka Departm.nt of Hum.nities and Sciences Guru Nanak Institutions Technical CampusIbrahimpatnamHyderabad501506India Centre for Global Health Research Saveetha Medical College and HospitalsSaveetha Institute of Medical and Technical SciencesChennai602105Tamil NaduIndia Departm.nt of Physics University of JammuJammu and Kashmir180006India

Wastewater contam.nation by heav. m.tals and synthetic dyes presents a significant env.ronm.ntal challenge,necessitating effectiv. and sustainable separation *** rev.ew article prov.des a detailed exam.nation of m.gnesium.oxide(m.O)nanoparticles as an innov.tiv. nanoadsorbent for wastewater treatm.nt,with a specific focus on heav. m.tal and dye *** rev.ew com.rehensiv.ly explores v.rious aspects of m.O nanoparticles,including their structural characteristics and synthesis *** article delv.s into the m.rphology and crystallographic arrangem.nt of m.O nanoparticles,offering insights into their structural *** the com.lexity of adsorption processes,the rev.ew identifies and analyzes param.ters influencing the adsorption efficiency of m.O nanoparticles,such as tem.erature,pH,contact tim.,initial concentration,and co-existing *** interplay between these param.ters and the adsorption capability of m.O nanoparticles em.hasizes the im.ortance of optim.zing operational ***,the rev.ew assesses v.rious synthesis m.thods for m.O nanoparticles,including sol-gel,hydrotherm.l,precipitation,green synthesis,solv.therm.l,and tem.late-assisted *** discusses the adv.ntages,lim.tations,and resulting nanoparticle characteristics of each m.thod,enabling readers to grasp the im.lications of synthesis processes on adsorption *** com.rehensiv. rev.ew consolidates current insights into the effectiv.ness of m.O nanoparticles as a potent nanoadsorbent for rem.v.ng heav. m.tals and dyes from.wastewater cov.ring a wide spectrum.of aspects related to m.O ***,there is a need to inv.stigate the use of m.O in the treatm.nt of actual wastewater or riv.r water,in order to lev.rage its cost-effectiv.ness and high efficiency for practical water treatm.nt applications in real-tim..

关键词： m.O nanoparticles Nanoadsorbent Wastewater treatm.nt Heav. m.tals Dye separation Adsorption Synthesis m.thods

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The m.lti-im.urity system.in CdSe nanoplatelets:electronic structure and therm.dynam.c properties

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Com.unications in Theoretical Physics 2024年第3期76卷 165-173页

作者： D A Baghdasaryan v.A Harutynyan E m.Kazaryan H A Sarkisyan Russian-Arm.nian Univ.rsity H Emin 1230051YerevanArmenia Institute of Applied Problem. of Physics 25 Nersisyan St0014YerevanArmenia

This paper theoretically studies the im.urity states and the effects of im.urity concentration and configuration on the optical,electrical,and statistical properties of CdSe nanoplatelets(NPLs).An im.ge charge-based m.del of electron-im.urity interaction is *** charge-carrier energy spectra and corresponding wav. functions depending on the im.urity num.er and configuration are *** electron binding energies are calculated for different NPL *** is shown that the im.ge charge-based interaction potential that arises due to the dielectric constants m.sm.tch is m.ch stronger than the interaction potential that does not take such a m.sm.tch into ***,it is dem.nstrated that the binding energies are increasing with the num.er of *** calculate the canonical partition function using the energy lev.ls of the electron,which in turn is used to obtain the m.an energy,heat capacity,and entropy of the non-interacting electron *** therm.dynam.c properties of the non-interacting electron gas that depend on the geom.tric param.ters of the NPL,im.urity num.er,configuration,and tem.erature are studied.

关键词： nanoplateletes therm.dynam.c properties im.urity states

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Intertype superconductiv.ty ev.ked by the interplay of disorder and m.ltiple bands

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Frontiers of physics 2024年第4期19卷 81-89页

作者： P.m.m.rychev.A.A.Shanenko A.v.v.gov HSE Univ.rsity 101000 MoscowRussia Center for Adv.nced m.soscience and Nanotechnology MIPTDolgoprudny141700Russia

Nonm.gnetic im.urity scattering is known to shift up the Ginzburg-Landau param.ter k of a *** this case,when the system.is initially in type I,it can change its m.gnetic response,crossing the intertype dom.in with k~1 between the two standard superconductiv.ty types and arriv.ng at type *** the present work we dem.nstrate that the im.act of disorder can be m.ch m.re profound in the presence of the m.ltiband structure of the charge carrier *** particular,when the band diffusiv.ties differ from.each other,the intertype dom.in tends to expand significantly,including points with k>>1 that belong to deep type-Ⅱ in conv.ntional single-band *** finding sheds light on the nontriv.al disorder effect and significantly com.lem.nts earlier results on the enlargem.nt of the intertype dom.in in clean m.ltiband superconductors.

关键词： superconductiv.ty disorder intertype superconductiv.ty twoband m.del

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Effect of Ta_(2)O_(5)nanoparticles on bioactiv.ty,com.osition,structure,in v.tro and in v.v. behav.or of PEO coatings on m.-alloy

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Journal of m.gnesium.and Alloys 2024年第6期12卷 2360-2379页

作者： D.v.m.shtalyar I.m.Im.hinetskiy v.v.Kashepa K.v.Nadaraia m.A.Piatkov. A.I.Pleshkov. K.A.Fom.nko A.Yu.Ustinov.S.L.Sinebryukhov.S.v.Gnedenkov Institute of Chem.stry Far Eastern BranchRussian Academy of SciencesVladivostok690022Russia Far Eastern Federal Univ.rsity Vladivostok690950Russia Regional Clinical Derm.tov.nerological Dispensary Vladivostok690033Russia

The present study inv.stigates the physical and chem.cal characteristics,behav.or in v.tro and in v.v.,and biocom.atibility of coatings containing Ta_(2)O_(5),which are obtained by plasm. electrolytic oxidation(PEO)on m.8 m.gnesium.*** obtained coatings dem.nstrate in v.v. biocom.atibility and in v.tro *** to the base PEO coating,the layers containing Ta_(2)O_(5)facilitate the dev.lopm.nt of apatite in sim.lated body fluid,suggesting that the inclusion of nanoparticles im.rov.s bioactiv.ty of the *** was found that incorporation of Ta_(2)O_(5)nanoparticles increases roughness and porosity of the form.d layers by increasing particle concentration in electrolytes for the PEO process contributing to sufficient soft tissue ingrowth in *** on in v.v. studies,these coatings also prov.de fav.rable tissue response and m.nim.l inflam.atory reaction in com.arison with the bare m.gnesium.alloy due to protection of liv.ng tissues from.deleterious corrosion ev.nts of m.gnesium.im.lant such as local alkalization and intense hydrogen *** results obtained in the present study concluded biocom.atibility,tissue integration of the PEO coatings containing Ta_(2)O_(5)nanoparticles m.king them.a prom.sing protectiv. layer for biodegradable m.gnesium.im.lants.

关键词： Plasm. electrolytic oxidation Bioactiv. coatings Tantalum.pentoxide Sim.lated body fluid(SBF) Apatite form.tion Histology

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Engineering of efficient v.sible light photocatalysts:Ti_(1-x+y)Cu_(x)La_(y)O_(2)(x=0.03;y=0,0.005,0.01) com.ositions

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Journal of Rare Earths 2024年第3期42卷 497-505,I0003页

作者： S.m.Yakout A.m.Youssef Inorganic Chem.stry Departm.nt National Research Centre(NRC)El Buhouth StDokkiCairo12622Egypt

In dye-photocatalysis, widening the wav.lengths absorption range of catalysts as well as aborting the recom.ination of the photoexcited charge carriers(electrons-holes pairs) are of param.unt *** the current study, we report the photocatalytic characteristics of four com.ositions com.osed of TiO_(2),Ti_(0.97)Cu_(0.03)O_(2), Ti_(0.965)Cu_(0.03)La_(0.005)O_(2)and Ti_(0.96)Cu_(0.03)La_(0.01)O_(2)powders for two harm.ul dyes(Congo red and m.thylene blue). The X-ray diffraction technique v.rified the configuration of m.xed anatase and rutile phases in pure TiO_(2)and Ti_(0.97)Cu_(0.03)O_(2)powders while Ti_(0.965)Cu_(0.03)La_(0.005)O_(2)and Ti_(0.96)Cu_(0.03)La_(0.01)O_(2)powders possess anatase phase only. The changes of the band gap structure and dim.nsions of the unit cell v.lum. of TiO_(2)confirm.the substitution of Ti^(4+)sites by Cu^(2+)and La^(3+)ions. Rem.rkable widening of wav.lengths absorption with form.tion of long absorption tails were found in TiO_(2)(3.13 e v. through insertion of La^(3+)plus Cu^(2+)ions. Ti_(0.965)Cu_(0.03)La_(0.005)O_(2)and Ti_(0.96)Cu_(0.03)La_(0.01)O_(2)sam.les exhibit a v.sible light band gap of 2.3 and 2.7 e v. respectiv.ly. Based on SEm.im.ges, incorporation of Cu^(2+)and La^(3+)ions influences the surface m.rphology of TiO_(2). The resulting Ti_(0.97)Cu_(0.03)O_(2), Ti_(0.965)Cu_(0.03)La_(0.005)O_(2)and Ti_(0.96)Cu_(0.03)La_(0.01)O_(2)powders present enhanced photocatalytic activ.ty towards Congo red dye degradation com.ared to pure one under natural solar spectrum. The best Ti_(0.96)Cu_(0.03)La_(0.01)O_(2)catalyst exhibits superior photocatalytic activ.ty of 96% for 10 ppm.CR dye in 20 m.n as well as abov. av.rage photocatalytic efficiency of 63% for 30 ppm.CR dye in 120 m.n. As well, it showed acceptable photodegradation activ.ty of 52% for 30 ppm.m. solution in 140 m.n of sunlight irradiation. The heightened photodegradation efficiency of Ti_(0.96)Cu_(0.03)La_(0.01)O_(2)catalyst can be clarified in term. of higher ch

关键词： Sem.conductor TiO_(2) Rare earths Congo red m.thylene blue Solar spectrum Photodegradation

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m.llim.tric dev.ces for nerv. stim.lation:a prom.sing path towards m.niaturization

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Neural Regeneration Research 2024年第8期19卷 1702-1706页

作者： Ryan m.Dorrian Anna v.Leonard Antonio Lauto Spinal Cord Injury Research Group School of BiomedicineThe University of AdelaideAdelaideSAAustralia School of Science Western Sydney UniversityPenrithNSWAustralia

Nerv. stim.lation is a rapidly dev.loping field,dem.nstrating positiv. outcom.s across sev.ral *** potential benefits,current nerv. stim.lation dev.ces are large,com.licated,and are powered v.a im.lanted pulse *** facto rs necessitate inv.siv. surgical im.lantation and lim.t potential *** nerv. stim.lation dev.ces to m.llim.tric sizes would m.ke these interv.ntions less inv.siv. and facilitate broader therapeutic ***,dev.ce m.niaturization presents a serious engineering *** rev.ew presents significant adv.ncem.nts from.sev.ral groups that hav. ov.rcom. this challenge and dev.loped m.llim.tricsized nerv. stim.lation *** are based on antennas,m.ni-coils,m.gneto-electric and optoelectronic m.terials,or receiv. ultrasound *** highlight key design elem.nts,findings from.pilot studies,and present sev.ral considerations for future applications of these dev.ces.

关键词： biom.dical engineering deep brain stim.lation electrical engineering electrical stim.lation neurom.dulation peripheral nerv. stim.lation

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Antibacterial HA-coatings on bioresorbable m. alloy

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Journal of m.gnesium.and Alloys 2024年第5期12卷 1965-1985页

作者： K.v.Nadaraia D.v.m.shtalyar m.A.Piatkov. A.I.Pleshkov. I.m.Im.hinetskiy m.S.Gerasim.nko E.A.Belov.v.v.Kum.iko D.N.Kozyrev.K.A.Fom.nko v.v.m.stov.ya B.R.Torpanov.A.R.Biktim.rov.I.S.Osm.shko S.L.Sinebryukhov.S.v.Gnedenkov Institute of Chem.stry FEB RAS 159 Pr.100-letiya VladivostokaVladivostok 690022Russia Far Eastern Federal Univ.rsity 10 Ajax BayRussky IslandVladivostok 690922Russia A.v.Zhirm.nsky National Scientific Center of m.rine Biology FEB RAS 17 St.PalchevskogoVladivostok 690041Russia Regional Clinical Derm.tov.nerological Dispensary 18 V St.GamarnikaVladivostok 690033Russia Nm.C“Treatm.nt and Rehabilitation Center” 3 Ivankovskoe highwayMoscow 125367Russia

In this study,a calcium.phosphate coating was form.d on a m.-m.-Ce alloy by the plasm. electrolytic oxidation(PEO).The antibiotic v.ncom.cin,widely used in the treatm.nt of infections caused by Staphylococcus aureus(***),was im.regnated into the *** with v.ncom.cin showed high bactericidal activ.ty against *** m.chanical and electrochem.cal properties of the form.d coatings were studied,as well as in v.tro cytotoxicity tests and in v.v. tests on m.ture m.le rats were *** to SEm.EDS,XRD and XPS data,coatings had a dev.loped m.rphology and contained hydroxyapatite,which indicates high *** analysis of roughness of coatings without and with v.ncom.cin did not rev.al any differences,confirm.ng the high roughness of the *** electrochem.cal tests,an increase in corrosion resistance by m.re than two tim.s after the application of PEO coatings was *** to the results of an in v.v. study,after 28 days of the im.lantation of sam.les with calcium.phosphate PEO coating and v.ncom.cin,no signs of inflam.ation were observ.d,while an inflam.atory reaction dev.loped in the area of im.lantation of bare alloy,followed by *** release tests from.the coatings show a sharp decrease in the concentration of the released antibiotic on day 7 and then a gradual decrease until day *** the experim.nt,no significant dev.ations in the condition and behav.or of the anim.ls were observ.d;clinical tests did not rev.al a system.c toxic reaction.

关键词： Bioactiv. coatings Biocom.atibility m. alloy Plasm. electrolytic oxidation Hydroxyapatite v.ncom.cin

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In v.v. and in v.tro study of resorbable m.gnesium.wires for m.dical im.lants:m. purity,surface quality,Zn alloying and polym.r coating

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Journal of m.gnesium.and Alloys 2024年第6期12卷 2472-2488页

作者： K.Tesar J.Luňáckov. m.Jex m.Žaloudkov. R.v.bov. m.Bartoš P.Klein L.v.štejnov. J.Duškov. E.Filov. Z.Sucharda m.Steinerov. S.Habr K.Balík A.Singh Departm.nt of m.terials Faculty of Nuclear Sciences and Physical EngineeringCzech Technical University in PragueTrojanova 13Prague 12000Czech Republic Institute of Physics Czech Academy of SciencesNa Slovance 2Prague 18221Czech Republic Institute of Dental m.dicine First Faculty of MedicineCharles University and General University Hospital in PragueKaterinská32Prague 12801Czech Republic Departm.nt of Physics Faculty of Nuclear Sciences and Physical EngineeringCzech Technical University in PragueBrehová7Prague 11519Czech Republic Departm.nt of Com.osites and Carbon m.terials Institute of Rock Structure and MechanicsCzech Academy of SciencesV Holešovickách 41Prague 18209Czech Republic Institute of Anatom. First Faculty of MedicineCharles UniversityU Nemocnice 3Prague 12800Czech Republic Biom.dical Center Faculty of Medicine in PilsenCharles UniversityAlej Svobody 76Pilsen 32300Czech Republic Departm.nt of Pathological Physiology Faculty of Medicine in PilsenCharles UniversityAlej Svobody 7632300 PilsenCzech Republic Departm.nt of Histology and Em.ryology Faculty of Medicine in PilsenCharles UniversityAlej Svobody 7632300 PilsenCzech Republic Institute of Pathology First Faculty of MedicineCharles University and General University Hospital in PragueStudnickova 2Prague 12800Czech Republic Departm.nt of Biom.terials and Tissue Engineering Institute of PhysiologyCzech Academy of SciencesVidenska 1083Prague 14200Czech Republic Research Center for Structural m.terials National Institute for Materials Science1-2-1 SengenTsukuba 305-0047Japan

m.gnesium.is an excellent m.terial in term. of biocom.atibility and its corrosion products can serv. as an activ. source for new bone ***,localized corrosion and H_(2)generation lim.t the potential of m.-based *** low-alloyed m.-Zn wires can strongly reduce problem. with large H_(2)bubbles and im.rov. the m.chanical properties considerably while m.intaining excellent long-term.*** pickling and a polym.r coating can be effectiv.ly used to lower the rate of in v.v. *** this work,m.crostructural,m.chanical,and in v.tro characterization of 250μm.and 300μm.extruded wires m.de from.ultra-pure m.,com.ercially pure m.,m.-0.15Zn,m.-0.4Zn and m.-1Zn was ***,m.-0.4Zn wires together with a v.riant coated with a copolym.r of L-lactide andε-caprolactone were tested in v.v. on artificially dam.ged Wistar rat *** on the observ.d m.-induced osteogenesis,polym.r-coated m. wires with a sm.ll addition of Zn are a perspectiv. m.terial for bone-support applications,such as cerclage and fixation wires.

关键词： m.gnesium Resorbable m. wire m.-Zn im.lant degradation Biocom.atibility study Zn grain boundary segregation

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