检索结果-南通市图书馆

Optima. combina.ion of the correction model a.d pa.a.eters for the precision geometric correction of Ua. hyperspectra. ima.es

引用

Interna.iona. Journa. of a.ricultura. a.d Biologica. Engineering 2024年第3期17卷 173-184页

作者： Wenzhong Tia. za Ka. Qingzha. Zha. Ping Jia.g Xuewen Wa.g Ha.qing Liu College of mecha.ica. a.d Electrica. Engineering Shihezi UniversityShihezi 832000XinjiangChina Resea.ch Center for Spa.e Informa.ion Engineering Technology Shihezi 832000XinjiangChina XPCC Division of Na.iona. Remote Sensing Center of China Shihezi 832000XinjiangChina College of Informa.ion Science a.d Technology Shihezi UniversityShihezi 832000XinjiangChina

Nowa.a.s,with the ra.id development of qua.tita.ive remote sensing represented by high-resolution Ua. hyperspectra. remote sensing observa.ion technology,people ha.e put forwa.d higher requirements for the ra.id preprocessing a.d geometric correction a.cura.y of hyperspectra. *** optima. geometric correction model a.d pa.a.eter combina.ion of Ua. hyperspectra. ima.es need to be determined to reduce unnecessa.y wa.te of time in the preprocessing a.d provide high-precision da.a.support for the a.plica.ion of Ua. hyperspectra. *** this study,the geometric correction a.cura.y under va.ious geometric correction models(including a.fine tra.sforma.ion model,loca. tria.gula.ion model,polynomia. model,direct linea. tra.sforma.ion model,a.d ra.iona. function model)a.d resa.pling methods(including nea.est neighbor resa.pling method,bilinea. interpola.ion resa.pling method,a.d cubic convolution resa.pling method)were ***,the distribution,number,a.d a.cura.y of control points were a.a.yzed ba.ed on the control va.ia.le method,a.d precise ground control points(GCPs)were *** results showed tha. the a.era.e geometric positioning error of Ua. hyperspectra. ima.es(a. 80 m a.titude a.L)without geometric correction wa. a. high a. 3.4041 m(a.out 65 pixels).The optima. geometric correction model a.d pa.a.eter combina.ion of the Ua. hyperspectra. ima.e(a. 80 m a.titude a.L)used a.loca. tria.gula.ion model,a.opted a.bilinea. interpola.ion resa.pling method,a.d selected 12 edgemiddle distributed *** correction a.cura.y could rea.h 0.0493 m(less tha. one pixel).This study provides a.reference for the geometric correction of Ua. hyperspectra. ima.es.

关键词： geometric correction hyperspectra. ima.es unma.ned a.ria. vehicle(Ua.) ground control point(GCP)

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Eva.ua.ion a.d Prediction of Groundwa.er Qua.ity in the municipa.ity of za-Kpota.(South Benin) Using ma.hine Lea.ning a.d Remote Sensing

引用

Journa. of Wa.er Resource a.d Protection 2024年第7期16卷 502-522页

作者： Jennifer a. a.lonsou Firmin m. a.a.dedji a.douka.im a.a.sa.e Consola. a.ihou ma.a.Da.uda La.ora.oire dHydrologie a.plique (LHa. Institut National de lEau (INE) University of Abomey-Calavi (UAC) Abomey-Calavi Benin Centre dExcellence da.rique pour lEa. et la.sa.nissement (C2Ea. University of Abomey-Calavi (UAC) Abomey-Calavi Benin Depa.tment of Wa.er Directora.e of Zou Water Service Bohicon Benin

a.cessing drinking wa.er is a.globa. issue. This study a.ms to contribute to the a.sessment of groundwa.er qua.ity in the municipa.ity of za-Kpota.(southern Benin) using remote sensing a.d ma.hine Lea.ning. The methodologica. a.proa.h used consisted in linking groundwa.er physico-chemica. pa.a.eter da.a.collected in the field a.d in the la.ora.ory using a.NOR 1994 sta.da.dized methods to sa.ellite da.a.(La.dsa.) in order to sketch out a.groundwa.er qua.ity prediction model. The da.a.wa. processed using QGis (Semi-a.toma.ic Plugin: SCP) a.d Python (Jupyter Netebook: Prediction) softwa.es. The results of wa.er a.a.ysis from the sa.pled wells a.d boreholes indica.ed tha. most of the wa.er is a.idic (pH va.ying between 5.59 a.d 7.83). The wa.er wa. modera.ely minera.ized, with conductivity va.ues of less tha. 1500 μs/cm overa.l (59 µS/cm to 1344 µS/cm), with high concentra.ions of nitra.es a.d phospha.es in pla.es. The dyna.ics of groundwa.er qua.ity in the municipa.ity of za-Kpota.between 2008 a.d 2022 a.e a.so ma.ked by a.regression in la.d use units (a.regression in vegeta.ion a.d ma.shla.d forma.ion in fa.or of built-up a.ea., ba.e soil, crops a.d fa.low la.d) revea.ed by the dia.hronic a.a.ysis of sa.ellite ima.es from 2008, 2013, 2018 a.d 2022. Surveys of loca. residents revea.ed the use of herbicides a.d pesticides in a.ricultura. fields, which a.e the ma.n drivers contributing to the groundwa.er qua.ity deteriora.ion observed in the study a.ea. Field surveys revea.ed the use of herbicides a.d pesticides in a.ricultura. fields, which a.e fa.tors contributing to the deteriora.ion in groundwa.er qua.ity observed in the study a.ea. The results of the groundwa.er qua.ity prediction models (a.N, RF a.d LR) developed led to the conclusion tha. the model ba.ed on a.tificia. Neura. Networks (a.N: R2 = 0.97 a.d RmSE = 0) is the best for groundwa.er qua.ity cha.ges modelling in the za-Kpota.municipa.ity.

关键词： Groundwa.er La.d Use Electrica. Conductivity ma.hine Lea.ning za-Kpota

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Compa.a.ive a.a.ysis of microstructure,mecha.ica.,a.d corrosion properties of biodegra.a.le mg-3Y a.loy prepa.ed by selective la.er melting a.d spa.k pla.ma.sintering

引用

Journa. of ma.nesium a.d a.loys 2024年第4期12卷 1496-1510页

作者： P.minárik m.Zemková S.Ša.ek J.Dittrich m.Kna.ek F.Lukáˇc D.Koutný J.Ja.oš R.Král Fa.ulty of ma.hema.ics a.d Physics Charles UniversityKe Karlovu 5Praha 12116Czech Republic Resea.ch Centre University ofŽilinaUniverzitná8215/1Žilina 01026Slovakia Institute of Pla.ma.Physics of the Czech a.a.emy of Sciences Za Slovankou 1782/318200 Praha 8Czech Republic Institute of ma.hine a.d Industria. Design Brno University of TechnologyTechnická2896/2Brno 61669Czech Republic

This work explored possibilities of biodegra.a.le ma.nesium a.loy mg-3Y prepa.a.ion by two modern powder meta.lurgy techniques–spa.k pla.ma.sintering(SPS)a.d selective la.er melting(SLm).The powder ma.eria. wa. consolida.ed by both methods utilising optimised pa.a.eters,which led to very low porosity(∼0.3%)in the SLm ma.eria. a.d unmea.ura.ly low porosity in the SPS *** ma.n a.m of the study wa. the thorough microstructure cha.a.terisa.ion a.d interrela.ion between the microstructure a.d the functiona. properties,such a. mecha.ica. strength,deforma.ility,a.d corrosion *** ma.eria.s showed compa.a.le strength of∼110 mPa.in tension a.d compression a.d rela.ively good deforma.ility of∼9%a.d∼21%for the SLm a.d SPS ma.eria.s,*** corrosion resista.ce of the SPS ma.eria. in 0.1 m Na.l solution wa. superior to the SLm one a.d compa.a.le to the conventiona. extruded *** digita. ima.e correla.ion during loa.ing a.d the cross-section a.a.ysis of the corrosion la.ers revea.ed tha. the residua. porosity a.d la.ge stra.ned gra.ns ha.e the domina.t nega.ive effect on the functiona. properties of the SLm *** the other ha.d,one of the prima.y outcomes of this study is tha. the SPS consolida.ion method is very effective in the prepa.a.ion of the W3 biodegra.a.le a.loy,resulting in ma.eria. with convenient mecha.ica. a.d degra.a.ion properties tha. might find pra.tica. a.plica.ions.

关键词： ma.nesium Yttrium Powder meta.lurgy microstructure mecha.ica. strength Corrosion resista.ce

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Crysta. structure a.d luminescence dyna.ics of highly pure Lim(PO_(3))_(3):Eu^(3+)(m=Sr,Ca. red phosphors for white light emitting diodes

引用

Journa. of Ra.e Ea.ths 2024年第8期42卷 1470-1478,I0002页

作者： Pa.a. Kha.uria.m.ma.ha. a.K.Bedya. a.kush Vij H.C.Swa.t Vina. Kuma. Depa.tment of Physics a.d a.tronomica. Sciences Central University of JammuRahy-Suchani.Samba1143J&KIndia Depa.tment of Physics School of SciencesCluster University of JammuCanal RoadJammu180001India Depa.tment of Physics University of Petroleum and Energy StudiesDehradunUttarakhand248007India Depa.tment of Physics University of the Free StatePO.Box 339BloemfonteinZA 9300South Africa

Highly pure red phosphors Lim(PO_(3))_(3):Eu^(3+)(m=Sr,Ca. doped with Eu^(3+)(1 mol%) were synthesized via.solution combustion method a.d their crysta. structure a.d luminescence dyna.ics were studied to explore its suita.ility in white light emitting *** Rietveld refinement a.a.ysis of the powder Xra. diffra.tion pa.terns revea.s tha. the phosphors belong to the pure triclinic pha.e of LiSr(PO_(3))_(3) a.d LiCa.PO_(3)) with spa.e group P-1(2).The sca.ning electron microscopy ima.es showed the a.glomera.ed *** photoluminescence emission spectra.under 393 nm show a. ora.ge ba.d a. 594 nm a.d a.red ba.d a. 613 nm a.cribed to ^(5)D_(0)→^(7)F_(1).^(5)D_(0)→^(7)F_(2) tra.sitions of Eu^(3+)ion in both the ***,the spectroscopic properties such a. luminescence beha.iour,a.d Sta.k splitting were used to exa.ine the symmetry of Eu^(3+)ions in Lim(PO_(3))_(3):Es^(3+)(m=Sr,Ca. phosphors in terms of distortion induced upon *** Sta.k splitting shows tha. the a.tua. site symmetry for Eu^(3+)ion wa. estima.ed to be D_(2) type for both *** photometric properties of LiCa.PO_(3))_(3):Eu^(3+)such a. Commission Interna.iona. de l'Ecla.ra.e coordina.es(x=0.64,y=0.36) nea. to the sta.da.d one(red),high color purity(95%) a.d higher brightness revea. tha. the phosphor ha. the ca.a.ility of a.ting a. a.red component in n-UV white light emitting diodes.

关键词： Photoluminescence Phospha.e WLEDs Sta.k splitting Ra.e ea.ths

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Performa.ce a.d ca.ibra.ion of qua.k/gluon-jet ta.gers using 140 fb^(-1) of pp collisions a. √s=13 TeV with the a.La. detector

引用

Chinese Physics C 2024年第2期48卷 1-25页

作者： G. a.d B. a.bott K. a.eling N.J. a.icht S.H. a.idi a. a.oulhorma.H. a.ra.owicz H. a.reu Y. a.ula.ti B.S. a.ha.ya.C. a.a. Bourda.ios L. a.a.czyk S.V. a.depa.li m.J. a.dison J. a.elma. a. a.iguzel T. a.ye a.a. a.folder Y. a.ik m.N. a.a.a. J. a.a.wa.a.a. a.ga.wa. C. a.heorghiesei a. a.ma. F. a.ma.ov W.S. a.med S. a.uja.X. a. G. a.elli a. a.kot m. a.t Ta.liha. B. a.tbenchikh I. a.zenberg m. a.biyik T.P.a. Åkesson a.V. a.imov D. a.iya.a.N.N. a.olka. K. a. Khoury G.L. a.berghi J. a.bert P. a.bicocco G.L. a.bouy S. a.derweireldt m. a.eksa.I.N. a.eksa.drov C. a.exa.T. a.exopoulos F. a.fonsi m. a.gren m. a.hroob B. a.i H.m.J. a.i S. a.i S.W. a.ibocus m. a.iev G. a.imonti W. a.ka.hi C. a.la.re B.m.m. a.lbrooke J.F. a.len C.a. a.lendes Flores P.P. a.lport a. a.oisio F. a.onso C. a.pigia.i m. a.va.ez Estevez a. a.va.ez Ferna.dez m. a.ves Ca.doso m.G. a.viggi m. a.y Y. a.a.a. Coutinho a. a.bler C. a.elung m. a.erl C.G. a.es D. a.idei S.P. a.or Dos Sa.tos K.R. a.os V. a.a.iev C. a.a.topoulos T. a.deen J.K. a.ders S.Y. a.drea. a. a.drea.za S. a.gelida.is a. a.gera.i a.V. a.isenkov a. a.novi C. a.tel m.T. a.thony E. a.tipov m. a.tonelli F. a.ulli m. a.ki T. a.ki J.a. a.a.isi Pozo m.a. a.a.o L. a.erio Bella.C. a.pelt a. a.ya. N. a.a.zaba. S.J. a.biol Va. C. a.ca.geletti a.T.H. a.ce E. a.ena.J-F. a.guin S. a.gyropoulos J.-H. a.ling O. a.na.z H. a.nold G. a.toni H. a.a.a.K. a.a. S. a.a. N.a. a.ba. J. a.sa.sa. K. a.sa.a.a. R. a.ta.os S. a.a.hi R.J. a.kin m. a.kinson H. a.ma.i P.a. a.ma.iddha.K. a.gsten S. a.ricchio a.D. a.riol V.a. a.strup G. a.olio K. a.iotis G. a.uelos D. Ba.a. H. Ba.ha.ou K. Ba.ha. a. Ba.hiu F. Ba.kma. a. Ba.ea.P. Ba.na.a.m. Ba.ma.i a.J. Ba.ley V.R. Ba.ley J.T. Ba.nes L. Ba.nes O.K. Ba.er E. Ba.os D. Ba.shi Gupta.V. Ba.a.rishna. R. Ba.a.ubra.a.ia. E.m. Ba.din P. Ba.ek E. Ba.la.ene F. Ba.li L.m. Ba.tes W.K. Ba.una. J. Ba.z E. Ba.a. m. Ba.diera.onte a. Ba.dyopa.hya. S. Ba.sa. L. Ba.a. m. Ba.a.a. E.L. Ba.berio D. Ba.beris m. Ba.bero m.Z. Ba.el K.N. Ba.ends T. Ba.illa.i m-S. Ba.isits T. Ba.klow P. Ba.on D.a. Ba.on mo The a.La. Colla.ora.ion

The identifica.ion of jets origina.ing from qua.ks a.d gluons,often referred to a. qua.k/gluon ta.ging,pla.s a. importa.t role in va.ious a.a.yses performed a. the La.ge Ha.ron Collider,a. Sta.da.d model mea.urements a.d sea.ches for new pa.ticles deca.ing to qua.ks often rely on suppressing a.la.ge gluon-induced *** pa.er describes the mea.urement of the efficiencies of qua.k/gluon ta.gers developed within the a.La. Colla.ora.ion,using √s=13 TeV proton–proton collision da.a.with a. integra.ed luminosity of 140 fb^(-1) collected by the a.La. *** ta.gers with high performa.ces in rejecting jets from gluon over jets from qua.ks a.e studied:one ta.ger is ba.ed on requirements on the number of inner-detector tra.ks a.socia.ed with the jet,a.d the other combines severa. jet substructure observa.les using a.boosted decision tree.a.method is esta.lished to determine the qua.k/gluon fra.tion in da.a.by using qua.k/gluon-enriched subsa.ples defined by the jet *** in ta.ging efficiency between da.a.a.d simula.ion a.e provided for jets with tra.sverse momentum between 500 GeV a.d 2 TeV a.d for multiple ta.ger working points.

关键词： a.La. JET QUa.K GLUON Ta.GING

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

膜杂捆料多级破碎机设计与试验

引用

农业工程学报 2024年第2期40卷 187-195页

作者：严义其坎杂王吉亮陈绍杰杨崇科李佳莉张炳成严伟哲冯震李亚萍石河子大学机械电气工程学院石河子832000 新疆农垦科学院机械装备研究所石河子832003 石河子开发区锐益达机械装备有限公司石河子832003 绿洲特色经济作物生产机械化教育部工程研究中心石河子832000

针对棉田机收膜杂捆料中膜-土-秆分布不均、相互裹绕且体积过大,无法直接进行有效破碎的问题,通过分析膜杂捆料的破碎过程,确定了一种先破捆、再破碎的破碎方案,并设计了一种包含均匀喂料装置、直刀破捆装置、Y型甩刀破碎装置的膜杂捆... 详细信息

针对棉田机收膜杂捆料中膜-土-秆分布不均、相互裹绕且体积过大,无法直接进行有效破碎的问题,通过分析膜杂捆料的破碎过程,确定了一种先破捆、再破碎的破碎方案,并设计了一种包含均匀喂料装置、直刀破捆装置、Y型甩刀破碎装置的膜杂捆料多级破碎机。以破碎刀辊转速、喂入速度、定刀数量作为主要影响因素,以残膜破碎合格率作为评价指标,进行三因素三水平试验,确定优化参数指标为试验在破碎刀辊转速1 125 r/min;喂入速度为0.012 m/s;定刀数量1个的因素水平下,此时膜杂捆料破碎合格率达到75.15%,满足后续加工工艺要求。该装置的研究对残膜资源化利用关键技术问题具有重要意义和应用价值。

关键词：农业机械试验残膜资源化利用膜杂捆料破碎机器

来源：

维普期刊数据库

同方期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Exploring the effects of ta.rolidine on tumor weight a.d microvessel density in a.murine model of osteosa.coma

引用

Oncology Resea.ch 2024年第7期32卷 1163-1172页

作者： LISa.NE K.a.NEIJENHUIS LEUTa.L.Na.ma.N SONIa.a.m.FERKEL Sa.UEL J.S.RUBIN STEPHa. ROGa.LA Division of Ga.troenterology a.d Hepa.ology Department of MedicineSchool of MedicineStanford UniversityStanford94305USA Depa.tment of Surgery Leiden University Medical CenterLeiden2333 ZAThe Netherlands Centre for Huma. Drug Resea.ch Leiden2333 CLThe Netherlands Depa.tment of Genera. VisceralVascular and Thoracic SurgeryCharite University Medicine BerlinBerlin10117Germany

Ba.kground:Osteosa.coma.is the most common ma.igna.t prima.y bone *** prognosis for pa.ients with dissemina.ed disea.e rema.ns very poor despite recent a.va.cements in ***,current trea.ment regimens bea. a.signiﬁca.t risk of serious side ***,there is a. unmet clinica. need for effective thera.ies with improved sa.ety proﬁ*** is a. a.tiba.teria. a.ent tha. ha. been shown to induce cell dea.h in different types of ca.cer cell ***:In this study,we exa.ined both the a.tineopla.tic a.d a.tia.giogenic effects of ta.rolidine in a.ima. models of osteosa.coma.K7m2 murine osteosa.coma.cells were injected,both intra.uscula. a.d intra.eritonea.,into 60 Ba.B/c mice on da. *** were then ra.domized to receive trea.ment with ta.rolidine 2%(800 mg/kg),ta.rolidine 1%(400 mg/kg),or Na.l 0.9%control for seven da.s by intra.enous or intra.eritonea. ***:a.ter 35 da.s,mice were eutha.ized,a.d the tumors were ha.vested for *** mice were excluded from the a.a.ysis due to *** weight wa. signiﬁca.tly lower in the 2%ta.rolidine intra.eritonea. trea.ment group from da. 9 to 21,consistent with eleva.ed morta.ity in this *** tumor weight wa. signiﬁca.tly lower in the 1%(p=0.003)a.d 2%(p=0.006)intra.eritonea. ta.rolidine trea.ment groups compa.ed to the *** a.tineopla.tic effects were observed on intra.uscula. tumors or for intra.enous a.ministra.ion of *** were no signiﬁca.t differences in microvessel density or mitotic ra.e between trea.ment *** body weight a.d eleva.ed morta.ity in the 2%ta.rolidine intra.eritonea. group suggest tha. the lower 1%dose is ***:In conclusion,there is no evidence of a.tia.giogenic a.tivity,a.d the a.titumor effects of ta.rolidine on osteosa.coma.observed in this study a.e ***,its toxic proﬁle gra.ts further *** these observa.ions,further resea.ch is necessa.y to

关键词： Osteosa.coma Ta.rolidine Ca.cer trea.ment Chemothera.y murine models

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Junction properties a.d conduction mecha.ism of new terbium complexes with triethylene glycol liga.d for potentia. a.plica.ion in orga.ic electronic device

引用

Journa. of Ra.e Ea.ths 2014年第7期32卷 633-640页

作者： N.K.za’a.a.m.a.mohd Sa.jida. W.H.a.d.ma.id Eny Kusrini muha.ma. I.Sa.eh Low Dimensiona. ma.eria.s Resea.ch Centre Physics DepartmentUniversity Malaya Depa.tment of Chemica. Engineering Faculty of EngineeringUniversitas Indonesia School of Chemica. Sciences Universiti Sains Malaysia

Terbium-picra.e triethylene glycol（EO3-Tb-Pic） complex wa. prepa.ed in thin film a.d single la.er device structure of ITO/EO3-Tb-Pic/a., using spin coa.ing technique. The UV-Vis a.sorption spectroscopy a.a.ysis wa. performed to eva.ua.e the electronic molecula. tra.sition of the complex. The optica. ba.d ga., Eg estima.ed from the Ta.c model revea.ed tha. EO3-Tb-Pic thin film exhibited a.direct tra.sition with Eg of 2.70 eV. The electronic pa.a.eters of the ITO/EO3-Tb-Pic/a. device such a. the idea.ity fa.tor n, ba.rier height Φb, sa.ura.ion current Io, a.d series resista.ce Rs, were extra.ted from the conventiona. lnI-V, Cheung＇s functions a.d Norde＇s method. It wa. found tha. the eva.ua.ed pa.a.eters ca.cula.ed from Norde＇s a.d Cheung＇s methods were consistent with those ca.cula.ed from the conventiona. I-V method. In the double loga.ithmic I-V plot, three distinct regions ba.ed on the slope were identified, a.d the conduction mecha.isms were discussed a.d expla.ned. The mobility, μ va.ue wa. estima.ed from SCLC region a. 2.58×10^–7 cm2/（V·s）. This newly obta.ned la.tha.ide complex ma. be potentia.ly utilized in electronic devices.

关键词： terbium-picra.e complex triethylene glycol Ta.c model optica. ba.d ga. current-volta.e ra.e ea.ths

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Ion emission from wa.m dense ma.ter produced by irra.ia.ion with a.soft x-ra. free-electron la.er

引用

ma.ter a.d Ra.ia.ion a. Extremes 2024年第1期9卷 71-84页

作者： Josef Krása.Tomás Buria. Vera.Hájková Ja.omír Cha.upský Šimon Jelínek Ka.erina.Fra.tálová micha. Krupka.Zuzana.Kuglerová Sushil Kuma. Singh Vojtech Vozda.Ludek Vysín micha.Šmíd Pa.lo Perez-ma.tin ma.ion Kühlma. Jua. Pintor Ja.ub Cikha.dt ma.thia. Dreima.n Dennis Eckerma.n Felix Rosentha. Sa. m.Vinko a.essa.dro Forte Thoma. Ga.ne Thoma. Ca.pbell Shenyua. Ren Yua.Feng Shi Trevor Hutchinson Oliver Humphries Thoma. Preston mika.o ma.ita.motoa.i Na.a.sutsumi Xia.un Pa. a.exa.der Köhler ma.ion Ha.ma.d Sven Toleikis Ka.erina.Fa.k Libor Juha Depa.tment of Ra.ia.ion a.d Chemica. Physics Institute of PhysicsCzech Academy of SciencesNa Slovance 218221 Prague 8Czech Republic La.er Pla.ma.Depa.tment Institute of Plasma PhysicsCzech Academy of SciencesZa Slovankou 318200 Prague 8Czech Republic Depa.tment of Surfa.e a.d Pla.ma.Science Faculty of Mathematics and PhysicsCharles University in PragueV Holesovi ckách 218000 Prague 8Czech Republic Depa.tment of Physica. Electronics Faculty of Nuclear Science and Engineering PhysicsCzech Technical University in PragueV Holesovi ckách 218000 Prague 8Czech Republic Helmholtz-Zentrum Dresden-Rossendorf Bautzner Landstraße 40001328 DresdenGermany DESY Photon Science Notkestraße 85D-22607 HamburgGermany Institut de minéra.ogie de Physique des Matériaux et de CosmochimieUMR 7590–UPMC/CNRS/IRD/MNHNSorbonne Université4 place Jussieu75005 ParisFrance Depa.tment of Physics Faculty of Electrical EngineeringCzech Technical University in PragueTechnická216627 Prague 6Czech Republic Center for Soft Na.oscience University of MünsterBusso-Peus-Straße 10D-48149 MünsterGermany Depa.tment of Physics Clarendon LaboratoryUniversity of OxfordParks RoadOxford OX13PUUnited Kingdom Centra. La.er Fa.ility STFC Rutherford Appleton LaboratoryDidcot OX110QXUnited Kingdom La.rence Livermore Na.iona. La.ora.ory 7000 East AvenueLivermoreCalifornia 94550USA Europea. XFEL GmbH Holzkoppel 4D-22869 SchenefeldGermany Technische Universität Dresden 01062 DresdenGermany

We report on a. experiment performed a. the FLa.H2 free-electron la.er(FEL)a.med a. producing wa.m dense ma.ter via.soft x-ra. isochoric *** the experiment,we focus on study of the ions emitted during the soft x-ra. a.la.ion process using time-of-flight electron multipliers a.d a.shifted ma.well–Boltzma.n velocity distribution *** find tha. most emitted ions a.e therma.,but tha. some impurities chemisorbed on the ta.get surfa.e,such a. protons,a.e a.celera.ed by the electrosta.ic field crea.ed in the pla.ma.by esca.ed *** morphology of the complex cra.er structure indica.es the presence of severa. ion groups with va.ying *** find tha. the ion sound velocity is controlled by the ion tempera.ure a.d show how the ion yield depends on the FEL ra.ia.ion a.tenua.ion length in different ma.eria.s.

关键词： electrosta.ic emitted chemi

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Opera.ion power consumption a.d verifica.ion tests of a.trenching device for orcha.ds in Xinjia.g ba.ed on discrete element

引用

Interna.iona. Journa. of a.ricultura. a.d Biologica. Engineering 2021年第1期14卷 133-141页

作者： Chen ma.Jia.gta. Qi za Ka. Sha.jie Chen Hewei meng College of mecha.ica. a.d Electrica. Engineering Shihezi UniversityShihezi 832000XinjiangChina College of mecha.ica. a.d Electronic Engineering Xinjiang Vocational UniversityUrumqi 830013China Key La.ora.ory of Northwest a.ricultura. ma.hinery of the ministry of a.riculture Shihezi 832000XinjiangChina Ruiyida.ma.hinery Equipment Co. Ltd.Shihezi Development ZoneShihezi 832000XinjiangChina

a.cording to the a.ronomic requirements of orcha.d pla.ting pa.tern a.d fertilization in Xinjia.g,the soil pa.ticle models a.d a.soil-trenching device intera.tion model were esta.lished by using discrete element simula.ion softwa.e in order to find out the la. of influence of structure pa.a.eters a.d working pa.a.eters on the opera.ion power consumption of a.segmented cutting trenching device;moreover,its cutting process wa. simula.ed a.cording to the response surfa.e test *** to the results of resea.ch on the influence of forwa.d speed,cutter disk speed a.d cutter disk combina.ion on the opera.ion power consumption of the segmented cutting trenching device,the la. of their influence on the opera.ion power consumption in descending order is forwa.d speed,cutter disk combina.ion,cutter disk *** to the response surfa.e test result,the following influentia. fa.tor pa.a.eter combina.ion ha. been obta.ned:forwa.d speed 815 m/h,cutter disk speed 112 r/min,cutter disk combina.ion a.cut a.gle 150°,bent a.gle 60°a.d working width 133 mm),cutter disk combina.ion B(cut a.gle 180°,bent a.gle 90°a.d working width 166 mm),a.d trenching opera.ion power consumption-optimization results were verified through field *** to the verifica.ion,the results showed a.high a.cura.y of the simula.ion,with a.rela.ive error mea. of 3.18%between the theoretica. va.ue a.d the field test *** study ca. provide a.reference for the energy-sa.ing design of orcha.d trenching devices.

关键词： trenching device discrete element orcha.d power consumption simula.ion a.a.ysis pa.a.eter optimization

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：