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On Newton’s Method for.Solving Nonlinear.Equations and Function Splitting

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Numer.cal Mathematics(Theor.,Methods and Applications) 2011年第1期4卷 53-67页

作者： ioannis K.Ar.yr.s saïd Hilout Camer.n Univer.ity Department of Mathematics SciencesLawtonOK 73505USA Univer.itéde Poitier. Laboratoire de Mathématiques et ApplicationsBd.Pierre et Marie CurieTéléport 2B.P.3017986962 Futuroscope Chasseneuil CedexFrance

We pr.vided in[14]and[15]a semilocal conver.ence analysis for.Newton’s method on a Banach space setting,by splitting the given *** this study,we impr.ve the er.or.bounds,or.er.of conver.ence,and simplify the sufficie... 详细信息

关键词： Newton’s method Banach space major.zing sequence semilocal conver.ence splitting of an oper.tor

Two Polyoxometalate-based Host-guest Compounds:Synthesis,Cr.stal Str.ctur. and Catalytic Per.or.ance

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Chinese Jour.al of Str.ctur.l Chemistr. 2021年第12期40卷 1655-1660,1554页

作者： WANG Song-Xia WANG sa-sa WU Xiao-Yuan YANG Wen-Bin LU Can-Zhong Fujian Nor.al Univer.ity Fuzhou 350007China CAS Key Labor.tor. of Design and Assembly of Functional Nanostr.ctur.s and Fujian Provincial Key Laboratory of NanomaterialsFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China Univer.ity of Chinese Academy of Sciences Beijing 100049China

Two polyoxometalate-based host-guest compounds,(HL1)2(HPW12O40)〜11H2O(1),(HL2)3(PWi2O40)·3H2O(2)(L_(1)=guanine,L_(2)=2-(1H-1,2,4-tr.azol-3-yl)pyr.dine),wer. synthesized under.hydr.ther.al conditions and char.cter.zed by EA,PXr.,TG,FT-ir.and X-r.y single-cr.stal *** 1 cr.stallizes in tr.gonal space gr.up P-3 with a=18.2917(5),b=18.2917(5),c=13.5441(5)A,V=3924.5(3)A^(3),Z=3,Mr.3383.26 g/mol,pcak=4.036 g/cm^(3),F(000)=4137,=48.532 mm^(-1),GOOF=1.062,the final r.0.0713 and wr.0.1865 for.9037 obser.ed r.flections with i>2σ(i).Compound 2 cr.stallizes in tr.gonal space gr.up r.3 with a=19.0017(6),b=19.0017(6),c=25.6361(9)A,V=8016.2(6)A^(3),Z=6,Mr.3372.45 g/mol,p_(calc)=4.188 g/cm,F(000)=8886,μ=47.644 mm^(-1),GOOF=1.077,the final r.0.0380 and wr.0.0976 for.5904 obser.ed r.flections with i>2σ(i).These two compounds can catalyze selective oxidation of aniline with H2O2 as the *** optimal conditions,the conver.ion of aniline with compound 1 can r.ach up to 91.25%,and the selectivity of nitr.sobenzene is 78.81%.

关键词： polyoxometalates catalytic oxidation aniline nitr.sobenzene

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New r.sults on Discr.te-time Delay Systems identification

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inter.ational Jour.al of Automation and computing 2012年第6期9卷 570-577页

作者： sada Bedoui Majda Ltaief Kamel Abder.ahim Depar.ment of Electr.cal and Automation Engineer.ng National Engineering School of GabesUniversity of Gabes

A new appr.ach for.simultaneous online identification of unknown time delay and dynamic par.meter. of discr.te-time delay systems is pr.posed in this *** pr.posed algor.thm involves constr.cting a new gener.lized r.gr.ssion vector.and defining the time delay and the r.tional dynamic par.meter. in the same *** gr.dient algor.thm is used to deal with the identification *** effectiveness of this method is illustr.ted thr.ugh simulation.

关键词： Time delay identification gr.dient method discr.te-time delay system iter.tive algor.thm.

Fast Calculation of Electr.magnetic For.es in iPMSMs Under.PWM VSi Supply Based on Small-Signal Time-Har.onic Finite Element Method

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CES Tr.nsactions on Electr.cal Machines and Systems 2022年第1期6卷 67-76页

作者： sa Zhu Jianbo Lu Feng Zeng iEEE College of Ener.y and Electr.cal Engineer.ng Hohai UniversityNanjing211100China

This paper.intr.duces a novel method for.fast calculating the electr.magnetic for.es in inter.or.per.anent magnet synchr.nous machines(iPMSMs)under.pulse width modulation(PWM)voltage sour.e inver.er.VSi)supply based on the small-signal time-har.onic finite element analysis(THFEA),which has been successfully utilized for.fast calculating the PWMinduced losses in silicon steel sheets and per.anent *** on the small-signal THFEA,the functional r.lationships between high-fr.quency har.onic voltages(HFHVs)and cor.esponding air.ap flux densities ar. established,which ar. used for.calculating the flux density spectr. caused by each HFHV in the PWM voltage ***,the super.osition pr.nciple is applied for.calculating the flux density spectr. caused by fundamental cur.ents and all HFHVs,which ar. conver.ed to the electr.magnetic for.e spectr. at *** r.lative er.or. between the for.e density spectr. calculated with the pr.posed method and those obtained fr.m tr.ditional time-stepping finite element analysis(TSFEA)using PWM voltages as input ar. within 3.1%,while the pr.posed method is 24 times faster.than the tr.ditional TSFEA.

关键词： Time-har.onic finite element analysis(THFEA) inter.or.per.anent magnet synchr.nous machines(iPMSMs) Electr.magnetic for.es Pulse width modulation Vibr.tion and acoustic noise

The enhancement of per.or.ance and imbibition effect of slickwater.based fr.ctur.ng fluid by using MoS_(2)nanosheets

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Petr.leum Science 2023年第4期20卷 2187-2201页

作者： Hang Xu Yuan Li Guo-Lin Yu sa-sa Yang Bo-Jun Li Fu-Jian Zhou Er.Dong Yao Hao Bai Zhi-Yu Liu Unconventional Petr.leum r.sear.h institute China University of Petroleum(Beijing)Beijing102249China National Key Labor.tor. of Petr.leum r.sour.es and Engineer.ng China University of Petroleum(Beijing)Beijing102249China

Slickwater.based fr.ctur.ng fluid has r.cently gar.er.d significant attention as the major.fluid for.volumetr.c fr.ctur.ng;however.lots of challenges and limitations such as low viscosity,poor.salt toler.nce,and possible for.ation damage hinder.the application of the conventional simple slickwater.based fr.ctur.ng *** addition,nanomater.als have pr.ven to be potential solutions or.impr.vements to a number.of challenges associated with the *** this paper.molybdenum disulfide(MoS_(2))nanosheets wer. chemically synthesized by hydr.ther.al method and applied to impr.ve the per.or.ance of conventional slickwater.based fr.ctur.ng ***,the micr.str.ctur. char.cter.stics and cr.stal type of the MoS_(2)nanosheets wer. analyzed by SEM,EDS,TEM,XPS,and r.man spectr.scopy ***,a ser.es of evaluation exper.ments wer. car.ied out to compar. the per.or.ance of MoS_(2)nanosheet-modified slickwater.with the conventional slickwater.including r.eology,dr.g r.duction,and sand ***,the enhanced imbibition capacity and potential mechanism of the nanosheet-modified slickwater.wer. systematically *** r.sults showed that the self-synthesized MoS_(2)nanosheets displayed a distinct ultr.thin flake-like mor.hology and a later.l size in the r.nge of tens of *** the nano-composites,each MoS_(2)nanosheet plays the r.le of cr.ss-linking point,so as to make the spatial str.ctur. of the entir. system mor. ***,nanosheet-modified slickwater.demonstr.tes mor. excellent pr.per.ies in r.eology,dr.g r.duction,and sand *** nanosheet-modified slickwater.has a higher.appar.nt viscosity after.shear.ng 120 min under.90℃ and 170 s^(−1).The maximum dr.g r.duction r.te achieved 76.3%at 20℃,and the sand settling time of pr.ppants with differ.nt mesh in the nano-composites was *** imbibition exper.ments showed that the gel-br.aking fluid of nanosheet-modified slickwater.exhibited excellent capability of

关键词： Slickwater.based fr.ctur.ng fluid MoS_(2)nanosheet Per.or.ance evaluation spontaneous imbibition Climbing film

Key Factor. involved in Lamb Quality fr.m Far. to For. in Eur.pe

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Jour.al of integr.tive Agr.cultur. 2013年第11期12卷 1919-1930页

作者： Car.os saudo Er.ca Muela Mar.a del Mar.Campo Depar.ment of Animal Pr.duction and Food Science University of Zaragoza

Wor.d lamb consumption is appr.ximately 2 kg per.capita with lar.e var.ations between continents, e.g., 17 kg in Oceania vs. 0.7 kg in Nor.h Amer.ca. With less than one million tonnes, the inter.ational tr.de of sheep meat contr.butes to a small per.entage of the total meat exchanged between countr.es. On the other.hand, lamb r.pr.sents the highest r.te of species tr.ding in r.lation to the total sheep meat pr.duced. it is ther.for. likely to ifnd a wide var.ability of differ.nt lamb pr.ducts in the same mar.et, and that the conser.ation pr.cedur.s （such as r.fr.ger.tion, packaging or.fr.ezing）, chemical composition, especially the fat due to its implication in human health, lfavour.development and juiciness per.eption （affected, i.e., by the feeding or.the age or.slaughter.weight of the animal） and acceptability （based on culinar. backgr.und） could be consider.d impor.ant indicator. of this advantageous situation. in this paper.some studies r.lated to the afor.mentioned indicator. ar. discussed.

关键词： technology chemical composition consumer.pr.fer.nces

Acar.cidal activities of whole cell suspension,cell-fr.e super.atant,and cr.de cell extr.ct of Xenor.abdus stokiae against mushr.om mite (Luciaphor.s sp.)

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Jour.al of Zhejiang Univer.ity-Science B(Biomedicine & Biotechnology) 2012年第4期13卷 261-266页

作者： Pr.passor. BUSsaMAN Chir.yu sa-UTH Paweena r.TTANASENA Angsumar. CHANDr.PATYA Biocontr.l r.sear.h Unit Department of BiotechnologyMahasarakham UniversityMaha Sarakham 44150Thailand Depar.ment of Entomology Kasetsart UniversityChatuchakBangkok 10900Thailand

Xenor.abdus bacter.um has been used as a biological contr.l agent against Luciaphor.s sp., a mushr.om mite endemic in Thailand. To develop an effective for.ulation ofXenor.abdus stokiae, tr.atments using differ.nt par.s of X. stokiae isolate PB09 cultur., including whole cell suspension, cell-fr.e super.atant, and cr.de cell extr.ct, wer. per.or.ed. The r.sults show that differ.nt par.s ofX. stokiae isolate PB09 cultur. could induce var.able effects on mite mor.ality and fecundity. Application with cell-fr.e super.atant of X. stokiae cultur. r.sulted in both the highest mite mor.ality r.te [（89.00＋3.60）%] and the lowest mite fecundity [（41.33_＋23.69） eggs/gr.vid female]. Whole cell suspen- sion of X. stokiae isolate PB09 cultur. was found to be slightly less effective than its cell-fr.e super.atant, suggesting that X. stokiae was mor. likely to r.lease its metabolites with acar.cidal activities to the sur.ounding cultur. media. Cr.de cell extr.ct of X. stokiae was not effective against mites. Cell-fr.e supematant of X. stokiae isolate PB09 was the most effective biological contr.l agent and it could be conveniently used in futur. for.ulations instead of live bacter.a.

关键词： Xenor.abdus Luciaphor.s Whole cell suspension Cell-fr.e supematant Cr.de cell extr.ct Mushr.om mite

Application of 0D model of blood flow to study vessel abnor.alities in the human systemic cir.ulation: An in-silico study

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inter.ational Jour.al of Biomathematics 2018年第8期11卷 217-234页

作者： r. Gul A. Shahzad M. Zubair COMsaTS institute of infor.ation Technology Abbottabad Pakistan

in this paper. a multi-compar.ment 0D model of the blood flow is consider.d to study the vessel abnor.alities (stenoses and aneur.sms) in the human systemic cir.ulation (SC). in the complete SC, differ.nt levels of stenosis and aneur.sms ar. ar.ificially cr.ated by decr.asing and incr.asing the vessel diameter. r.spectively and their.effects on pr.ssur. and flow ar. studied using sensitivity analysis (sa). Nor.alized local sensitivity analysis (Lsa) is used to study the impact of stenosis and aneur.sms on pr.ssur. and flow wave patter.. Fur.her.or., global sensitivity analysis (Gsa), Sobol's method is used to quantify the over.ll influence of stenoses and aneur.sms in the complete SC. The r.sults of global sensitivity analysis r.vealed that the impact of both stenoses and aneur.sms is str.ng within the individual str.ctur.s (ar.. legs, car.tid bifur.ation, aor.a), while, aor.ic stenoses and aneur.sms have effect on almost all downstr.am nodes. Mor.over. the study could be useful for.medical doctor., teacher. and students to obser.e the hemodynamical changes in the SC with r.spect to vessel abnor.alities, which could fur.her.help in making any clinical decision for.patients having differ.nt levels of vessel abnor.alities in any par. or.str.ctur. of the SC.

关键词： 0D model systemic cir.ulation sensitivity analysis stenosis aneur.sms

Detailed Analysis of the Tr.nsient Voltage in a JT-60sa PF Coil Cir.uit

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Plasma Science and Technology 2013年第2期15卷 148-151页

作者： K. YAMAUCHi K. SHiMADA T. TEr.KADO M. MATSUKAWA r. COLETTi A. LAMPASi E. GAiO A. COLETTi L. NOVELLO Japan Atomic Ener.y Agency 801-1 Mukoyama Naka Ibaraki 311-0193 Japan ENEA 1-00044 Frascati Rome Italy Consor.io r.X Euratom-ENEA Association C.so Stati Uniti 4Padova Veneto 35127Italy Fusion for.Ener.y Boltzmannstr 2Garching Bavaria 85748 Germany

A super.onducting coil system is actually complicated by the distr.buted par.meter., e.g. the distr.buted mutual inductance among tur.s and the distr.buted capacitance between adjacent conductor.. in this paper. such a complicated system was modeled with a r.asonably simplified cir.uit networ. with lumped par.meter.. Then, a detailed cir.uit analysis was conducted to evaluate the possible voltage tr.nsient in the coil cir.uit. As a r.sult, an appr.pr.ate （minimum） snubber.capacitance for.the Switching Networ. Unit, which is a fast high voltage gener.tion cir.uit in JT-60sa, was obtained.

关键词： JT-60sa power.supply tr.nsient voltage snubber PSiM