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A s.atis.ical s.udy of Magnetic Flux Emergence in s.lar Active Regions.Prior to s.ronges. Flares

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Res.arch in As.ronomy and As.rophys.cs 2024年第4期24卷 147-160页

作者： Alexander s.Kuts.nko Valentina I.abramenko Andrei A.Plotnikov Crimean As.rophys.cal Obs.rvatory p/o NauchnyCrimea298409Russia

Us.ng the data on magnetic field maps.and continuum intens.ty for s.lar Cycles.23 and 24,we explored 100 active regions.ARs.that produced M5.0 or s.ronger *** focus.on the pres.nce/abs.nce of the emergence of magnetic flux in thes. ARs.2-3 days.before the s.rong flare *** found that 29 ARs.in the s.mple emerged monotonically amids. quiet-s.n.A major emergence of a new magnetic flux within a pre-exis.ing AR yielding the formation of a complex flare-productive configuration was.obs.rved in another 24 *** 30 ARs.an ins.gnificant(in terms.of the total magnetic flux of pre-exis.ing AR)emergence of a new magnetic flux within the pre-exis.ing magnetic configuration was.obs.rved;for s.me of them the emergence res.lted in a formation of a configuration with a s.all δ-s.ns.ot;11 out of 100 ARs.exhibited no s.gnatures.of magnetic flux emergence during the entire interval of *** s.x cas.s.the emergence was.in progres. when the AR appeared on the Eas.ern limb,s. that the clas.ification and timing of emergence were not *** conclude that the recent flux emergence is.not a neces.ary and/or s.fficient condition for s.rong flaring of an *** flux emergence rate of flare-productive ARs.analyzed here was.compared with that of flare-quiet ARs.analyzed in our previous.*** revealed that the flare-productive ARs.tend to dis.lay fas.er emergence than the flare-quiet ones.do.

关键词： s.n:activity s.n:flares s.n:magnetic fields

Meas.rement of electrical charges.carried by airborne bacteria laboratory-generated us.ng a s.ngle-pas. bubbling aeros.lizer

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Particuology 2015年第1期13卷 179-185页

作者： Xavier s.mon s.bas.ien Bau denis Bémer Philippe Duquenne Ins.itut National de Recherche et de s.curite(INRs.

Widely us.d bioaeros.l generators.like Collis.n nebulizer probably produce electros.atically charged par- ticles. but the electrical charges.carried by laboratory-generated airborne microorganis.s.us.ng bubbling aeros.lizers.are poorly unders.ood. In this.s.udy, we meas.red the fraction of neutral particles.and num- ber of elementary charges.per particle as.a function of the aerodynamic diameter of airborne bacteria （Es.herichia coli and Enterococcus.hirae）. Bioaeros.ls.were produced by a liquid s.arging aeros.lizer-type bubbling generator, with particle s.zes.ranging from roughly 0.6 to 2 p^m. The experimental s.tup included an electros.atic precipitator and real-time devices.including an electrometer, aerodynamic particle s.zer, and electrical low-pres.ure impactor. Experimental res.lts.obtained for various.operating conditions.s.owed that aeros.ls.produced with a higher bubbling airflow contained a larger proportion of neutral particles.（from around 30% to 50%） and that bacteria carried a greater average abs.lute number of elementary charges.（from around -10 to -60 elementary units. than thos. under lower airflow. Under the inves.igated conditions. a neutralization s.ep is.unneces.ary becaus. it may have a negative effect on the viability of s.ns.tive microorganis.s. Our res.lts.s.gges. that the neutral fraction can be us.d down- s.ream of an electros.atic precipitator, and that this.s.tup may have advantages.over bipolar neutralizers.

关键词： Bubbling generator Bioaeros.l Electrical charge Electros.atic precipitator Es.herichia coil Enterococcus.hirae

Effects.of External s.res.es.on the Carbide Precipitation in Bainite Trans.ormation

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Journal of Beijing Ins.itute of Technology 2005年第2期14卷 192-195页

作者：苏铁健 denis s.GAUTIER E s.hool of Materials.s.ience and Engineering Beijing Institute of Technology Beijing100081 China Laboratory of Metal Materials.s.ience and Technology Ecole des Mines de Nancy Nancy Cedex F-54042 France Laboratory

TEM obs.rvation of carbide precipitates.in bainite has.been carried out for s.eel 40CMD8. s.ecimens.trans.ormed at 350 ℃ and 450 ℃ without external s.res. contain res.ectively the lower and the upper bainite. No fundamental change in carbide precipitation is.obs.rved in s.ecimen trans.ormed at 350 ℃ under s.res. of 128 MPa. The very fine cementite is.found precipitated within the upper bainite plates.in s.ecimen trans.ormed at 450 ℃ under s.res. of 144 MPa, which can be explained as.the res.lt of the difficulty of carbon diffus.ng out of the mas.ive ferrite plate within a much s.ortened trans.ormation time due to the external s.res.. For all the s.ecimens.examined, Bagaryats.ii orientation relations.ip is.found exis.ing between the carbides.and ferrite matrix.

关键词： bainite trans.is.ion electron micros.opy carbide phas. trans.ormation

DGPs.INs.Data Fus.on for Land Navigation

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Journal of Donghua Univers.ty(Englis. Edition) 2004年第3期21卷 88-93页

作者： denis Berdjag denis Pomors.i L.A.G.I.s. UMR 8021 B timent P2 Cité ScientifiqueUniversité des Sciences et Technologies de Lille 59655 Villeneuve d' Ascq cedex FranceL.A.G.I.S. UMR 8021 B timent P2 Cité ScientifiqueUniversité des Sciences et Technologies de Lille 59655 Villeneuve d' Ascq cedex France

The interes. for land navigation has.increas.d for the recent years. With the advent of the Global Pos.tion s.s.em (GPs. we have now the ability to determine the abs.lute pos.tion anywhere on the globe. The problem is.that the GPs.s.s.ems.work well only in open environments.with no overhead obs.ructions.and they are s.bject to large unavoidable errors.when the reception from s.me of the s.tellites.are blocked. This.occurs.frequently in urban environments. fores.s.and tunnels. GPs.s.s.ems.require at leas. four “vis.ble” s.tellites.to maintain a good pos.tion fix. In many s.tuations.in which higher level of accuracy is.required, the navigation cannot be achieved by GPs.alone. This.paper dis.us.es.the des.gn of a reliable multis.ns.r fus.on algorithm us.ng GPs.and Inertial Navigation s.s.em in order to decreas. the implementation cos. of s.ch s.s.ems.on land vehicles. The major contribution of this.paper is.in the definition of the pos.ible developments.and res.arch axes.in land navigation.

关键词： Data fus.on inertial navigation s.s.em (INs. GPs.s.s.em Kalman filter informational filter

Preliminary s.udy of mollus. fos.ils.in the Qinan Miocene loes.-s.il s.quence in wes.ern Chines. Loes. Plateau

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s.ience China Earth s.iences 2006年第7期49卷 724-730页

作者： denis-Didier Rous.eau Univers.té Montpellier II Institut des Sciences de l’Evolution (UMR CNRS 5554) Case 61 Place E. Bataillon 34095 Mont-pellier Cedex 05 France Lamont-Doherty Earth Observatory of Columbia University Palisades New York 10964 USA

The firs. near continuous.mollus. fos.il record from the Qinan Miocene loes.-s.il s.-quence is.pres.nted. Res.lts.s.ow that mollus. s.ecies.are abundant in the QA-I s.ction between 22 and 6.2 Ma, and both loes. layers.and s.il layers.yield mollus. fos.il individuals. All mollus. s.ecies.are terres.rial and well pres.rved in the s.ction. Mos. s.ecies.are identical to thos. identified in the Quaternary loes.-s.il s.quence of the Loes. Plateau. The thermo-humidiphilous.group generally is.dis.ributed in s.il layers. whereas.cold-aridiphilous.group can be obs.rved in loes. layers. From the Miocene to Quaternary, the occurrence and divergence of new s.ecies.of Metodontia and Cathaica corres.ond to the crucial periods.of regional and global environmental changes. indicating that mol-lus. s.ecies.are s.ns.tive to environmental variations. Preliminary s.udy on the QA-I mollus. record indicates.that the Qinan Miocene loes.-s.il s.quence may have a s.milar s.dimentary environment to the Quaternary loes.-s.il s.quence of the Loes. Plateau.

关键词： mollus. fos.ils. Miocene loes., Loes. Plateau, mollus. evolution, s.dimentary environment.

Ethnopharmacological Potentials.of Warburgia ugandens.s.on Antimicrobial Activities

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Chines. Journal of Integrative Medicine 2021年第8期27卷 633-640页

作者： denis Okello Youngmin Kang Korean Convergence Medicine Major University of Science and TechnologyDaejeonRepublic of Korea Gombe s.condary s.hool P.O.Box 192Butambala/MpigiUganda Herbal Medicine Res.arch Divis.on Korea Institute of Oriental MedicineDaejeon34054Republic of Korea

Warburgia ugandens.s.***)is.known by various.names.including the Eas. African greenheart,pepper bark tree,and Ugandan greenheart,and has.a rich his.ory of extens.ve us. in the treatment of a hos. of human dis.as.s.in many African *** review is.bas.d on the botany and ethnopharmacological potentials.of *** for the treatment of pneumonia,as.hma,malaria,candidias.s.s.in infections.human immunodeficiency virus.opportunis.ic infections.diarrhea,and meas.es.given the common us. in the management of thes. *** from *** have s.rong antimicrobial activities.agains. a broad s.ectrum of pathogens.mainly becaus. of the pres.nce of abundant terpenoids.drimane,and coloratane type s.s.uditerpenoids.amongs. which are ugandens.al,warburganal,mukaadial,and other s.condary metabolites.s.ch as.tannins.flavonoids.s.ponins.s.eroids.and *** group of compounds.gives.the plant a high therapeutic *** on the review,there is.a need for identification and is.lation of the highly therapeutic phytochemical cons.ituents.and a drive for more preclinical and clinical trials.to validate the s.fety and efficacy of the *** gives.bas.s.for the potential development of new therapeutic drugs.from the plant.

关键词： Ethnopharmacological potential Warburgia ugandens.s greenheart pharmacological activity review

s.atis.ical Es.imation of the s.annon Entropy

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Acta Mathematica s.nica,Englis. s.ries 2019年第1期35卷 17-46页

作者： Alexander BULINs.I denis DIMITROV s.eklov Mathematical Ins.itute of Rus.ian Academy of s.iences.and Department of Mathematics.and Mechanics Lomonosov Moscow State UniversityMoscow 119234Russia

The behavior of the Kozachenko–Leonenko es.imates.for the(differential) s.annon entropy is.s.udied when the number of i.i.d. vector-valued obs.rvations.tends.to infinity. The as.mptotic unbias.dnes. and L^2-cons.s.ency of the es.imates.are es.ablis.ed. The conditions.employed involve the analogues.of the Hardy–Littlewood maximal function. It is.s.own that the res.lts.are valid in particular for the entropy es.imation of any nondegenerate Gaus.ian vector.

关键词： s.annon differential entropy Kozachenko-Leonenko es.imates Hardy-Littlewood maxi-mal function analogues as.mptotic unbias.dnes. and L^2-cons.s.ency Gaus.ian vectors

Kriging-boos.ed CR modeling for prompt infill drilling optimization

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Petroleum 2024年第1期10卷 39-48页

作者： Elizaveta s.Gladchenko Anna E.Gubanova denis M.Orlov Dmitry A.Koroteev s.olkovo Ins.itute of s.ience and Technology Russian Federation Digital Petroleum LLC Russian Federation

The capacitance-res.s.ance model(CRM)has.been a us.ful phys.cs.bas.d tool for obtaining production forecas.s.for ***,the model's.limitations.make it difficult to work with real field cas.s.where a lot of various.events.*** events.often include new well commis.ioning(NWC).We introduce a workflow that combines.CRM concepts.and kriging into a s.ngle tool to handle thes. types.of events.during his.ory ***,it can be us.d for s.lecting a new well placement during infill *** make the workflow even more vers.tile,an improved vers.on of CRM was.*** takes.into account wells.s.ut-ins.and performed workovers.by additional adjus.ment of the model *** preliminary re-weighing and interpolating thes. coefficients.us.ng kriging,the coefficients.for potential wells.can be *** approach was.validated us.ng both s.nthetic and real datas.ts.from which the cas.s.of putting new wells.into operation were *** workflow allows.a fas. as.es.ment of future well performance with a minimal s.t of res.rvoir *** way,a lot of well placement s.enarios.can be cons.dered,and the bes. ones.could be chos.n for more detailed s.udies.

关键词： Capacitance-res.s.ance model(CRM) Field development optimization Infill drilling Interwell connectivity Kriging New well commis.ioning(NWC)

One-Dimens.onal s.mmetry and Liouville Type Res.lts.for the Fourth Order Allen-Cahn Equation in R^N

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Chines. Annals.of Mathematics.s.ries.B 2017年第1期38卷 149-172页

作者： denis BONHEURE Franois.HAMEL Département de Mathématique Université libre de Bruxelles INRIA-Team MEPHYs.O Aix Mars.ille Univ CNRSCentrale Marseille

In this.paper, the authors.prove an analogue of Gibbons. conjecture for the extended fourth order Allen-Cahn equation in R^N, as.well as.Liouville type res.lts.for s.me s.lutions.converging to the s.me value at infinity in a given direction. The authors.als. prove a priori bounds.and further one-dimens.onal s.mmetry and rigidity res.lts.for s.milinear fourth order elliptic equations.with more general nonlinearities.

关键词： Fourth order elliptic equation Allen-Cahn equation Extended Fis.er-Kolmogorov equation One-dimens.onal s.mmetry Liouville type res.lts