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Landau quanti.ati.n effects on dampi.g Kawahara soli.ons i. electron–posi.ron–i.n plasma i. rotati.g i.ni.ed medi.m

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Communi.ati.ns i. Theoreti.al Physi.s 2024年第10期76卷 143-152页

作者： E i.El-Awady S Hussai. N Akhtar Department of Physi.s Faculty of Science Port Said University Theoreti.al Physi.s Di.i.i.n (TPD) PINSTECH

For the dynami.s of three-di.ensi.nal electron–posi.ron–i.n plasmas, a flui. quantum hydrodynami. model i. proposed by consi.eri.g Landau quanti.ati.n effects i. dense ***–neutral colli.i.ns i. the presence of the Cori.li. force are also consi.ered. The appli.ati.n of the reducti.e perturbati.n techni.ue produces a wave evoluti.n equati.n represented by a damped Korteweg–de Vri.s equati.n. Thi. equati.n, however, i. i.suffi.i.nt for descri.i.g waves i. our system at very low di.persi.n coeffi.i.nts. As a result, we consi.ered the hi.hest-order perturbati.n, whi.h resulted i. the damped Kawahara equati.n. The effects of the magneti. fi.ld, Landau quanti.ati.n, the rati. of posi.ron densi.y to electron densi.y, the rati. of posi.ron densi.y to i.n densi.y, and the di.ecti.n cosi.e on li.ear di.persi.n laws as well as soli.on and conoi.al soluti.ns of the damped Kawahara equati.n are explored. The understandi.g from thi. research can contri.ute to the broader fi.ld of astrophysi.s and ai. i. the i.terpretati.n of observati.nal data from whi.e dwarfs.

关键词： Cori.li. force Kawahara equati.n Landau quanti.ati.n magnetoplasmas quantum plasma soli.ary and cnoi.al waves

Developi.g a two-decadal ti.e-record of ri.e fi.ld maps usi.g Landsat-deri.ed multi.i.dex i.age collecti.ns wi.h a random forest classi.i.r:A Google Earth Engi.e based approach

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i.formati.n Processi.g i. Agri.ulture 2024年第2期11卷 260-275页

作者： W.Ashane M.Fernando i.P.Senanayake Department of Nano Sci.nce Technology Wayamba University of Sri LankaKuliyapitiya 60200Sri Lanka Dchoolf Engi.ei.g CllegeoEngineeringSience and EnionmentThe UniversyewcastleCallaghanW2Austraia

Hi.tori. maps showi.g the temporal di.tri.uti.n of ri.e fi.lds are i.portant for preci.i.n agri.ulture,i.ri.ati.n opti.i.ati.n,forecasti.g crop yi.lds,land use management and formulati.g ***,mappi.g ri.e felds usi.g tradi.i.nal ground surveys i. i.practi.al when hi.h cost,ti.e and labour requi.ements are consi.ered,and the avai.abi.i.y of such detai.ed records i. *** satelli.e remote sensi.g appears to be a vi.ble soluti.n,conventi.nal segmentati.n and classi.i.ati.n methods wi.h spectral bands are often unable to contrast the di.ti.ct characteri.ti.s between ri.e fi.lds and other vegetati.n *** thi. end,we explored a novel,Google Earth Engi.e(GEE)based multi.ndex random forest(RF)classi.i.ati.n approach to map ri.e fi.lds over two *** i.ages from 2000 to 2020 of two Sri.Lankan ri.e culti.ati.n di.tri.ts were extracted from GEE and a multi.i.dex RF classi.i.ati.n algori.hm was appli.d to di.ti.gui.h the ri.e *** results showed above 80%accuracy for both trai.i.g and vali.ati.n,when compared agai.st hi.h spati.l resoluti.n Google Earth *** essence,multi.i.dex sampli.g and RF together synergi.ed the compelli.g classi.cati.n accuracy by effecti.ely capturi.g vegetati.n,water(pondi.g)and soi. characteri.ti.s uni.ue to the ri.e felds usi.g a si.gle-cli.k *** maps developed i. thi. study were further compared agai.st the MODi. land cover type product(MCD12Q1)and the correspondi.g superi.r stati.ti.s on ri.e fi.lds demonstrated the robustness of the proposed *** work seeki.g effecti.e i.dex combi.ati.ns i. recommended,and thi. approach can potenti.lly be extended to other crop analyses elsewhere.

关键词： Google Earth Engi.e(GEE) i.age classi.i.ati.n Random forest Mappi.g ri.e fi.lds Ti.e seri.s analysi. Vegetati.n i.dex

Ri.e Husk at a Glance:From Agro-i.dustri.l to Modern Appli.ati.ns

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Ri.e sci.nce 2024年第1期31卷 14-32页

作者： Masoumeh KORDi.Naser FARROKHi.Marti. i.PECH-CANUL Asadollah AHMADi.HAH Department of Cell&Molecular Bi.logy Faculty of Life Sciences and BiotechnologyShahid Beheshti UniversityTehran ***Iran 1062 Metallurgi.al i.dustry Avenue Industrial Park Saltillo-Ramos ArizpeRamos ArizpeCoahuila 25900Mexico

Excessi.e waste producti.n has led to the concept of a ci.cular bi.economy to deli.er valuable by-products and i.prove envi.onmental *** annual worldwi.e ri.e producti.n accounts for more than 750 mi.li.n tons of grai. and 150 mi.li.n tons of *** husk(RH)contai.s valuable bi.materi.ls wi.h extensi.e appli.ati.ns i. vari.us *** proporti.ns of each component depend pri.ari.y on ri.e genotype,soi. chemi.try,and cli.ati. *** and i.s deri.ati.es,i.cludi.g ash,bi.char,hydrochar,and acti.ated carbon have been placed foreground of appli.ati.ns i. agri.ulture and other *** the i.vesti.ati.n on RH’s composi.i.ns,mi.rostructures,and by-products has been done copi.usly,owi.g to i.s uni.ue features,i. i. sti.l an open-ended area wi.h enormous scope for i.novati.n,research,and ***,we revi.wed the latest appli.ati.ns of RH and i.s deri.ati.es,i.cludi.g fuel and other energy resources,constructi.n materi.ls,pharmacy,medi.i.e,and nanobi.technology to keep thi. versati.e bi.materi.l i. the spotli.ht.

关键词： ci.cular bi.economy ri.e husk acti.ated carbon ri.e husk ash ri.e husk bi.char ri.e husk hydrochar ri.e husk appli.ati.n

A Stati.ti.al Study of Magneti. Flux Emergence i. Solar Acti.e Regi.ns Pri.r to Strongest Flares

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Research i. Astronomy and Astrophysi.s 2024年第4期24卷 147-160页

作者： Alexander S.Kutsenko Valenti.a i.Abramenko Andrei.A.Plotni.ov Cri.ean Astrophysi.al Observatory p/o NauchnyCrimea298409Russia

Usi.g the data on magneti. fi.ld maps and conti.uum i.tensi.y for Solar Cycles 23 and 24,we explored 100 acti.e regi.ns(ARs)that produced M5.0 or stronger *** focus on the presence/absence of the emergence of magneti. flux i. these ARs 2-3 days before the strong flare *** found that 29 ARs i. the sample emerged monotoni.ally ami.st qui.t-Sun.A major emergence of a new magneti. flux wi.hi. a pre-exi.ti.g AR yi.ldi.g the formati.n of a complex flare-producti.e confi.urati.n was observed i. another 24 *** 30 ARs,an i.si.ni.i.ant(i. terms of the total magneti. flux of pre-exi.ti.g AR)emergence of a new magneti. flux wi.hi. the pre-exi.ti.g magneti. confi.urati.n was observed;for some of them the emergence resulted i. a formati.n of a confi.urati.n wi.h a small δ-sunspot;11 out of 100 ARs exhi.i.ed no si.natures of magneti. flux emergence duri.g the enti.e i.terval of *** si. cases the emergence was i. progress when the AR appeared on the Eastern li.b,so that the classi.i.ati.n and ti.i.g of emergence were not *** conclude that the recent flux emergence i. not a necessary and/or suffi.i.nt condi.i.n for strong flari.g of an *** flux emergence rate of flare-producti.e ARs analyzed here was compared wi.h that of flare-qui.t ARs analyzed i. our previ.us *** revealed that the flare-producti.e ARs tend to di.play faster emergence than the flare-qui.t ones do.

关键词： Sun:acti.i.y Sun:flares Sun:magneti. fi.lds

Radi.ti.e loss of coherence i. free electrons:a long-range quantum phenomenon

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Li.ht(Sci.nce & Appli.ati.ns) 2024年第2期13卷 294-301页

作者： Cruz i.Velasco Valeri. Di.Gi.li. F.Javi.r García de Abajo i.FO-i.sti.ut de Ci.nci.s Fotoni.ues The Barcelona Institute of Science and Technology08860Castelldefels(Barcelona)Spain i.REA-i.sti.uci.Catalana de Recerca i.Estudi. Avançats Passeig Lluís Companys 2308010BarcelonaSpain

Quantum physi.s rules the dynami.s of small objects as they i.teract over mi.roscopi. length ***,quantum correlati.ns i.volvi.g macroscopi. di.tances can be observed between entangled photons as well as i. atomi. gases and matter waves at low *** long-range nature of the electromagneti. coupli.g between charged parti.les and extended objects could also tri.ger quantum phenomena over large ***,we reveal a mani.estati.n of quantum mechani.s that i.volves macroscopi. di.tances and results i. a nearly complete depleti.n of coherence associ.ted wi.h whi.h-way free-electron i.terference produced by electron-radi.ti.n coupli.g i. the presence of di.tant extended *** i. a ubi.ui.ous effect that we i.lustrate through a ri.orous theoreti.al analysi. of a two-path electron beam i.teracti.g wi.h a semi.i.fi.i.e metalli. plate and fi.d the i.ter-path coherence to vani.h proporti.nally to the path separati.n at zero temperature and exponenti.lly at fi.i.e *** i.vesti.ated regi.e of large di.tances ori.i.ates i. the coupli.g of the electron to radi.ti.e modes assi.ted by di.fracti.n at materi.l structures but wi.hout any i.volvement of materi.l *** the fundamental i.terest of thi. macroscopi. quantum phenomenon,our results suggest an approach to measuri.g the vacuum temperature and nondestructi.ely sensi.g the presence of di.tant objects.

关键词： temperature quantum macroscopi.

Vi.tual Transmi.si.n Soluti.n Based on Battery Energy Storage Systems to Boost Transmi.si.n Capaci.y

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Journal of Modern Power Systems and Clean Energy 2024年第2期12卷 466-474页

作者： Matías Agüero Jai.e Peralta Eugeni. Qui.tana Vi.tor Velar Anton stepanov Hossei. Ashouri.n Jean Mahseredji.n Roberto Cárdenas Coordi.ador Eléctri.o Naci.nal SantiagoChile PGSTech Montreal Canada Ecole Polytechni.ue de Montréal Montréal Canada Uni.ersi.y of Chi.e Santiago Chile i.EE

The i.creasi.g penetrati.n of vari.ble renewable energy(VRE)generati.n along wi.h the decommi.si.ni.g of conventi.nal power plants i. Chi.e,has rai.ed several operati.nal challenges i. the Chi.ean Nati.nal Power Gri.(NPG),i.cludi.g transmi.si.n congesti.n and VRE *** mi.i.ate these li.i.ati.ns,an i.novati.e vi.tual transmi.si.n soluti.n based on battery energy storage systems(BESSs),known as gri. booster(GB),has been proposed to i.crease the capaci.y of the mai. 500 kV corri.or of the *** paper analyzes the dynami. performance of the GB usi.g a wi.e-area electromagneti. transi.nt(EMT)model of the *** GB project,composed of two 500 MVA BESS uni.s at each extreme of the 500 kV corri.or,allows i.creasi.g the transmi.si.n capaci.y for 15 mi. duri.g N-1 conti.genci.s,overcomi.g transmi.si.n li.i.ati.ns under normal operati.n condi.i.ns whi.e mai.tai.i.g system stabi.i.y duri.g *** dynami. behavi.r of the GB i. also analyzed to control power flow as well as voltage *** results show that the GB i. an effecti.e soluti.n to allow greater penetrati.n of VRE generati.n whi.e mai.tai.i.g system stabi.i.y i. the NPG.

关键词： Battery energy storage system(BESS) gri. booster transi.nt stabi.i.y voltage stabi.i.y electromagneti. transi.nt(EMT)

DFT Studi.s of Electroni. Properti.s and Effect of He and Xe i.corporati.n i. Selected Cerami.s

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Journal of Modern Physi.s 2024年第10期15卷 1485-1501页

作者： Barbara Szpunar Jayangani.i. Ranasi.ghe Jerzy A. Szpunar Department of Physi.s and Engi.eeri.g Physi.s University of Saskatchewan Saskatoon Canada Department of Mechani.al Engi.eeri.g University of Saskatchewan Saskatoon Canada

The electroni. properti.s of several prospecti.e nuclear fuels are not yet well known. We used Quantum Espresso and EPW codes to evaluate the electron densi.y of states, the electroni. heat capaci.y coeffi.i.nt, the electron-phonon coupli.g strength, the number of mobi.i.y electrons, and the electroni. heat conducti.i.y. The electroni. properti.s for ThN, ThC and UN usi.g a sli.htly di.ferent approach that were previ.usly evaluated are di.cussed and the results are compared. We confi.med that whi.e the electroni. heat capaci.y coeffi.i.nt i. li.early dependent on the electron densi.y of states at Fermi.energy, such a si.ple relati.n could not be used to determi.e the di.ference i. the electroni. heat conducti.i.y of i.vesti.ated materi.ls. The hi.hest heat conducti.i.y was regi.tered i. ThN. These metalli. fuels also have hi.h U/Th densi.y, therefore are more economi.al si.ce enri.hment i. expensi.e. Furthermore, i. i. i.portant to exami.e swelli.g i. these hi.h-densi.y fuels. We evaluated that UN had 42% more U atoms per uni. volume than UO2 and a 55% hi.her volume i.crease when accommodati.g one Xe atom i. one i.tersti.i.l of a (2 × 2 × 2) supercell. However, for He, the volume i.crease was 27% lower i. UN. i.teresti.gly, even though the Th atom’s densi.y i. ThN and ThC was lower than that of U atoms i. the UN compound, a si.i.ar trend of volume changes was found. We concluded, therefore, that when we consi.er swelli.g, the local structural symmetry (tetrahedral versus octahedral si.es) i. more i.portant than the densi.y of atoms. The 37 % greater of absolute value of the total energy i.crease due to i.corporati.n of Xe i. ThC versus ThN cannot be explai.ed by the crystal structure si.ce a ThC-Xe supercell has a hi.her latti.e constant than a ThN-Xe correspondi.g supercell. Such results can only be explai.ed by i.vesti.ati.g electroni. structure.

关键词： UN ThN ThC Thermal Conducti.i.y Defects

Parti.le Si.e Opti.i.ati.n of Thermochemi.al Salt Hydrates for Hi.h Energy Densi.y Thermal Storage

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Energy & Envi.onmental Materi.ls 2024年第2期7卷 326-333页

作者： Andrew Marti. Drew Li.ley Raνi.Prasher Sumanjeet Kaur Energy Technologi.s Area Lawrence Berkeley National LaboratoryBerkeleyCA 94720USA Department of Mechani.al Engi.eeri.g UC BerkeleyBerkeleyCA 94720USA

Thermal energy storage(TES)soluti.ns offer opportuni.i.s to reduce energy consumpti.n,greenhouse gas emi.si.ns,and ***,they can help reduce the peak load and address the i.termi.tency of renewable energy sources by ti.e shi.ti.g the load,whi.h are cri.i.al toward zero energy *** materi.ls(TCMs)as a class of TES undergo a soli.-gas reversi.le chemi.al reacti.n wi.h water vapor to store and release energy wi.h hi.h storage capaci.i.s(600 kWh m^(-3))and negli.i.le self-di.charge that makes them uni.uely sui.ed as compact,stand-alone uni.s for dai.y or seasonal ***,TCMs suffer from i.stabi.i.i.s at the materi.l(salt parti.les)and reactor level(packed beds of salt),resulti.g i. poor multi.cycle effi.i.ncy and hi.h-leveli.ed cost of *** thi. study,a model i. developed to predi.t the pulveri.ati.n li.i. or Rcri. of vari.us salt hydrates duri.g thermal *** i. cri.i.al as i. provi.es desi.n rules to make mechani.ally stable TCM composi.es as well as enables the use of more energy-effi.i.nt manufacturi.g process(soli.-state mi.i.g)to make the *** model i. experi.entally vali.ated on multi.le TCM salt hydrates wi.h di.ferent water content,and effect of Rcri. on hydrati.n and dehydrati.n ki.eti.s i. also i.vesti.ated.

关键词： hi.h energy densi.y hydrati.n ki.eti.s long-term cycli.g thermal energy storage thermochemi.al materi.ls

Data-dri.en modeli.g on ani.otropi. mechani.al behavi.r of brai. ti.sue wi.h i.ternal pressure

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Defence Technology（防务技术） 2024年第3期33卷 55-65页

作者： Zhi.uan Tang Yu Wang Khali. i.Elkhodary Zefeng Yu Shan Tang Dan Peng State Key Laboratory of Structural Analysi. Optimization and CAE Software for Industrial EquipmentDalian University of Technology116023DalianPR China The Department of Mechani.al Engi.eeri.g The American University in CairoNew Cairo11835Egypt Department of Neurology The Second Hospital of Dalian Medical UniversityDalian116023PR China

Brai. ti.sue i. one of the softest parts of the human body,composed of whi.e matter and grey *** mechani.al behavi.r of the brai. ti.sue plays an essenti.l role i. regulati.g brai. morphology and brai. ***,traumati. brai. i.jury(TBi.and vari.us brai. di.eases are also greatly i.fluenced by the brai.'s mechani.al *** whi.e matter or grey matter,brai. ti.sue contai.s multi.cale structures composed of neurons,gli.l cells,fi.ers,blood vessels,etc.,each wi.h di.ferent mechani.al *** such,brai. ti.sue exhi.i.s complex mechani.al behavi.r,usually wi.h strong nonli.eari.y,heterogenei.y,and di.ecti.nal *** a consti.uti.e law for multi.cale brai. ti.sue usi.g tradi.i.nal functi.n-based approaches can be very ***,thi. paper proposes a data-dri.en approach to establi.h the desi.ed mechani.al model of brai. *** focus on blood vessels wi.h i.ternal pressure embedded i. a whi.e or grey matter matri. materi.l to demonstrate our *** matri. i. descri.ed by an i.otropi. or ani.otropi. nonli.ear elasti. model.A representati.e uni. cell(RUC)wi.h blood vessels i. bui.t,whi.h i. used to generate the stress-strai. data under di.ferent i.ternal blood pressure and vari.us proporti.nal di.placement loadi.g *** generated stress-strai. data i. then used to trai. a mechani.al law usi.g arti.i.i.l neural networks to predi.t the macroscopi. mechani.al response of brai. ti.sue under di.ferent i.ternal ***,the trai.ed materi.l model i. i.plemented i.to fi.i.e element software to predi.t the mechani.al behavi.r of a whole brai. under i.tracrani.l pressure and di.tri.uted body *** wi.h a di.ect numeri.al si.ulati.n that employs a reference materi.l model,our proposed approach greatly reduces the computati.nal cost and i.proves modeli.g *** predi.ti.ns made by our trai.ed model demonstrate suffi.i.nt ***,we fi.d that the level of i.ternal blood pressur

关键词： Data dri.en Consti.uti.e law Ani.otropy Brai. ti.sue i.ternal pressure