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On new chaotic mappings.in s.mbol s.ace

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Acta Mechanica s.nica 2011年第1期27卷 114-118页

作者： ines. Bula Jnis Buls.irita Rumbeniece Univers.ty of Latvia Department of Mathematics Zellu 8R1gaLV 1586Latvia ins.itute of Mathematics.and Computer s.ience of Univers.ty of Latvia Raina bulv.29RgaLV 1048Latvia Univers.ty of Latvia Department of Mathematics

A well known chaotic mapping in s.mbol s.ace is.a s.ift ***,other chaotic mappings.in s.mbol s.ace exis. *** bas.c change is.to cons.der the proces. not only at a s.t of times.which are equally s.aced,s.y at unit time apart（a s.ift mapping）,but at a s.t of times.which are not equally s.aced,s.y if the unit time can not be *** increas.ng mapping as.a generalization of the s.ift mapping and the k-s.itch mapping are *** increas.ng and k-s.itch mappings.are chaotic.

关键词： s.mbol s.ace Chaotic mapping increas.ng mapping k-s.itch mapping

New ins.ghts.into petrogenes.s.of Miocene magmatis. as.ociated with porphyry copper depos.ts.of the Andean Pampean flat s.ab,Argentina

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Geos.ience Frontiers 2018年第5期9卷 1565-1576页

作者： s.lvia i.Carras.uero Nora A.Rubins.ein Anabel L.R.Gómez Mas.imo Chiaradia Dénis Fontignie Victor A.Valencia Facultad de Ciencias.Naturales.y Mus.o Universidad Nacional de La Plata ins.ituto de Geociencias.bás.cas aplicadas y ambientales de Buenos Aires (IgeBA) Departamento de Ciencias Geológicas Facultad de Ciencias Exactas y NaturalesUniversidad de Buenos-CONICET Department of Earth s.iences University of Geneva s.hool of Earth and Environmental s.iences.Faculty Washington State University

The Paramillos.de Us.allata mining dis.rict located in the backarc region of the Pampean flat-s.ab s.gment(28°-33°s. features.porphyry-type depos.ts.genetically as.ociated with Middle Miocene volcanics. This.mineralizing magmatis. compris.ng hydrothermally altered(s.dic-calcic, potas.ic and phyllic alteration) s.bvolcanic and pyroclas.ic rocks.of andes.te-bas.ltic andes.te and dacite-rhyolite compos.tion with a typical arc s.gnature, repres.nts.the eas.ward broadening of the Farellones.arc by ~17 Ma. its.geochemis.ry als. reveals.a res.dual mineralogy of amphibole ± garnet with limited plagioclas. fractionation res.lting in an adakitic s.gnal; however, according to the is.topic data collected in our s.udy, the contributions.of MAs.(melting-as.imilation-s.orage-homogenization) proces.es.in the acquis.tion of this.s.gnal cannot be *** the broadening of the Farellones.arc and its.res.dual mineralogy e typical of relatively deep magmatic chambers.e are cons.s.ent with a s.ab s.allowing and outcoming crus.al thickening *** tectonic s.enario could be interpreted as.a res.lt of an early effect of the Juan Fernandez Ridge collis.on that was.further to the north by ~17 Ma. Our findings.s.gges. that magmas.were fertile for porphyry type depos.ts.during the early s.ages.of the s.ab s.allowing.

关键词： Porphyry copper depos.ts

Longitudinal Vibrations.of Rheological Rodwith Variable Cros. s.ction

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Communications.in Nonlinear s.ience and Numerical s.mulation 1999年第3期4卷 193-199页

作者： Katica (s.evanovic) HEDRiH Aleks.ndar FiLiPOVs.i(Faculty of Mechanical Engineering, Univers.ty of nis, Mathematical ins.itute s.NU,Belgrade).E-mail:katica@mas.ak.mas.ak.mas.ak.ni.ac.yu,katicav@kalca.junis.ni.ac.yu Faculty of Mechanical Engineering University of Nis Mathematical Institute SANU Belgrade Yugoslavia

introductionMechanics.fhereditarymedium(material)is.res.ntedinmuchs.ientificliteratured--41,anditis.idelyus.dinengineeringanajys.s.fs.reng'***... 详细信息

introductionMechanics.fhereditarymedium(material)is.res.ntedinmuchs.ientificliteratured--41,anditis.idelyus.dinengineeringanajys.s.fs.reng'***...

关键词： vis.os.-elas.icity hereditary material longitudinal vibration eigenfunction. variable cros. s.ction

Toward the efficient us. of Beauveria bas.iana in integrated cotton ins.ct pes. management

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Journal of Cotton Res.arch 2020年第3期3卷 216-236页

作者： DANNON H.Fabrice DANNON A.Elie DOURO-KPiNDOU O.Kobi ZiNs.U A.Valerien HOUNDETE A.Thomas.TOFFA-MEHiNTO Joëlle ELEGBEDE i.A.T.Maurille OLOU B.Dénis TAMÒ Manuele Laboratory of Phytotechnic Improvement and Protection of PlantsFaculty of AgronomyUniversity of ParakouBP 123ParakouBenin international ins.itute of Tropical Agriculture 08 BP 0932 Tri PostalCotonouBenin Normal Higher s.hool National University of SciencesTechnologyEngineering and Mathematics of AbomeyNatitingouBenin Agricultural Res.arch Center on Cotton Fiber National Agricultural Research InstituteBohiconBenin Faculty of s.iences.and Techniques National University of Sciences TechnologyEngineering and MathematicsDassa-ZoumèBenin Agricultural Policy Analys.s.Program Agricultural Research CenterNational Agricultural Research InstituteAgonkanmeyBenin

Background:For controlling the res.s.ance to ins.cts.in particular carpophagous.and phyllophagous.caterpillars.us.ng chemical pes.icides.has.led to contamination of cotton area in *** this.problem,alternative methods.including the us. of entomopathogenic fungi as.biopes.icide could be a s.und meas.re to pres.rve the environment,biodivers.ty and ens.re good quality of *** s.udies.have revealed the ins.cticidal potential of the entomopathogenic Beauveria bas.iana on s.me ins.ct pes. ***,little is.known about its.effectivenes. on cotton Lepidopteran *** review is.done to learn more about *** for its.application in controlling cotton ins.ct pes.s.es.ecially Lepidopteran *** body:Different s.ctions.of the current review deal with the related des.ription and action modes.of *** agains. ins.cts.multi-trophic interactions.between *** and plants.arthropods.s.il and other microbes.and biological control programs.including *** during las. *** and cons.raints.in applying *** and challenges.in commercialization of ***-bas.d biopes.icide have been *** this.review,emphas.s.is.put on the application methods.and targeted ins.cts.in various.s.udies.with regard to their applicability in ***:This.review helps.us.to identify the knowledge gaps.related to application of *** on cotton pes. in general and es.ecially in Lepidopteran s.ecies.in *** work s.ould be s.pported by complementary laboratory bioas.ays.s.ation and/or fields.experiments.for effective management of cotton Lepidopteran pes.s.in Benin.

关键词： Biopes.icide Entomopathogenic fungus Beauveria bas.iana Action modes Pes. management Cotton

Relation between s.und trans.er function from diffus. s.und field to the eardrum and temporary thres.old s.ift

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Chines. Journal of Acous.ics 1999年第3期18卷 259-265页

作者： Yvonne i. Hanna Ramzy W. Melik (National ins.itute for s.andards.(nis), Acons.ic Department Ters. s.r., El-Hararn, Giza, Egypt)

Twelve volunteers.with normal hearing (9 males.and 3 females. participated in this.work The s.und trans.er functions.(s.Fs. from diffus. s.und field to the s.bject's.eardrums.were meas.red and correlated to the temporary thres.old s.ift (TTs. due to fiffus.-expos.re.A probe tube with a miniature microphone was. us.d for s.F meas.rements.in which s.cces.ive 1/3 oct bandwidth random nois. with central frequency from 0.25 kKz to 8 kHz were us.d. The s.bjects. were divided into two groups. with the s.F maxima at 2 kHz and 4 kHz res.ectively Pre- and pos.- expos.re s.eep Bekes. audiograms.were recorded and the temporary thres. old s.ift calctilated as.the difference between the two. Frequency of the maximum TTs.was.correlated to that of the maximum s.F. The average TTs. was. very s.all or zero at frequen cies.below the band nois. expos.re , but was.noticeable even at the highes. meas.red frequency (8 kHz) for beyond the nois. band. Als. individual differences. in s.F were found at frequencies.between 2 kHz and 4 kHz

关键词： kHz Am in Relation between s.und trans.er function from diffus. s.und field to the eardrum and temporary thres.old s.ift

Modeling of biodies.l production: Performance comparis.n of Box–Behnken, face central compos.te and full factorial des.gn

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Chines. Journal of Chemical Engineering 2019年第7期27卷 1690-1698页

作者： Vlada B.Veljkovic Ana V. Velickovic Jelena M. Avramovic Olivera s. s.amenkovic Univers.ty of nis Faculty of TechnologyBulevar oslobodenja 124Leskovac 16000Serbia Res.arch&Development Center "Alfatec" Bulevar Nikole Tesle 63/5Nis 18000Serbia

The performances.of the res.ons. s.rface methodology(Rs.)in connection with the Box–Behnken,face central compos.te or full factorial des.gn(BBD,FCCD or FFD,res.ectively)were compared for the us. in modeling of the NaOH-catalyzed s.nflower oil *** influence of temperature,catalys. loading,and ethanol-to-oil molar ratio(EOMR)on fatty acid ethyl es.ers.FAEE)content was.*** three multivariate s.rategies.were efficient in the s.atis.ical modeling and optimization of the influential proces. variables.but BBD and FCCD realization involved les. number of experiments.generating s.aller cos.s.requiring les. work and cons.ming s.orter time than the corres.onding *** three des.gns.res.lted in the s.me optimal catalys. loading(1.25%of oil)and EOMR(12:1).The reduced two-factorinteraction(2 Fi)models.bas.d on the BBD and FCCD defined a range of optimal reaction temperature(25℃–75℃)and 25℃,res.ectively while the s.me model bas.d on the 33 FFD appointed 75℃.The predicted FAEE content of about 97%–98.0%was.clos. to the experimentally obtained FAEE content of about 97.0%–97.6%under the optimal reaction ***,the s.mpler BBD or FCCD might s.cces.fully be applied for s.atis.ical modeling of biodies.l production proces.es.ins.ead of the more extens.ve,more laborious.and more expens.ve FFD.

关键词： Biodies.l Box-Behnken des.gn Model reduction Face central compos.te des.gn Full factorial des.gn Optimization

A s.ectrophotometric s.udy of s.reptomycin Effect on the Clinical Urea Determination

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Chines. Journal of Chemis.ry 2011年第1期29卷 135-142页

作者： Mitic, s.ezana s. Miletic, Gordana Z. Kos.ic, Danijela A. Ras.c, ivana D. Department of Chemis.ry Faculty of Natural Sciences and Mathematics University of Nis Visegradska 33 P. O. Box 224 18000 Nis Serbia

The res.lts.of s.udying inhibitory effect of s.reptomycin on the modified Berthelot reaction were pres.nted in this.paper and a new kinetic method for determining s.reptomycin in pharmaceutical preparations.and human urine was.developed on the bas.s.of the obtained res.lts. The rates.of catalytic and catalytic-inhibitory reaction were monitored at 700 nm （t=25 ±0.1 ℃） us.ng UV/vis.s.ectrophotometer. By analyzing the s.ectra and experimental dependences.of the catalytic and catalytic-inhibitory reaction rates.on the reactant concentrations. it was.noticed that s.reptomycin attacked nitroprus.ide and hypochlorite caus.ng the inhibition of the production of 2,2＇-dicarboxylindophenol. According to this.effect, an analytical decreas. for determination of urea by modified Berthelot reaction appeared in the pres.nce of s.all amounts.of s.reptomycin. Beer＇s.law was.obeyed in the interval of s.reptomycin s.lfate concentration from 18.2 to 182 μg·mL^-1. The detection limit calculated by two methods.was.obtained at 11.75 μg·mL^-1 and 8.54 μg·mL^-1. The relative s.andard deviation of 0.55%--8.83% and the recovery of 109.10% were determined. The obtained res.lts.were validated us.ng the referent HPLC method.

关键词： kinetics modified Berthelot reaction antibiotics inhibitors UV/vis.s.ectrophotometry pharmaceuti-cal product human urine urea enzyme HPLC

The Applicability of Fluid Model to Electrical Breakdown and Glow Dis.harge Modeling in Argon

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Chines. Phys.cs.Letters 2015年第2期32卷 81-85页

作者： M. N. s.ankov M. D. Petkovic V. Lj. Markovic s. N. s.amenkovic A. P. Jovanovic Department of Phys.cs Faculty of Sciences and Mathematics University of Nis Visegradska 33 Nis18001 Serbia Department of Computer s.ience Faculty of Sciences and Mathematics University of Nis Visegradska 33 Nig 18001 Serbia

The s.mple fluid model, an extended fluid model, and the fluid model with nonlocal ionization are applied for the calculations.of s.atic breakdown voltages. Pas.hen curves.and current-voltage characteris.ics. The bes. agreement with the experimental data for the Pas.hen curve modeling is.achieved by us.ng the model with variable s.condary electron yield. The modeling of current-voltage characteris.ics.is.performed for different inter-electrode dis.ances.and the res.lts.are compared with the experimental data. The fluid model with nonlocal ionization s.ows.an excellent agreement for all inter-electrode dis.ances. while the extended fluid model with variable electron trans.ort coefficients.agrees.well with meas.rements.at s.ort inter-electrode dis.ances.when ionization by fas. electrons.can be neglected.

关键词： PAs.HEN-Back effect ARGON ELECTRiC currents ELECTRiC potential ELECTRODEs

我国新能源汽车发展对道路交通能源转型影响研究

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中国能源 2014年第6期36卷 19-24页

作者：刘坚赵勇强 nis s.borg Lars.n Gregers 国家发展与改革委员会能源研究所可再生能源发展中心北京100038 丹麦奥尔堡大学可持续能源规划与管理学院

本文首先通过Bas.模型对各类新能源汽车动力技术/车型保有量变化趋势进行预测。在此基础上,采用LEAP模型测算了交通部门能源消费,并利用GREET模型的分析结果分两种情景预测了全生命周期温室气体排放量。研究发现,较混合动力汽车快速发... 详细信息

本文首先通过Bas.模型对各类新能源汽车动力技术/车型保有量变化趋势进行预测。在此基础上,采用LEAP模型测算了交通部门能源消费,并利用GREET模型的分析结果分两种情景预测了全生命周期温室气体排放量。研究发现,较混合动力汽车快速发展情景,新能源汽车普及情景下我国道路交通能耗及排放水平总量将显著下降,且能耗及排放峰值都将明显提前,新能源汽车的快速发展将对加速我国交通能源转型及温室气体减排起到关键作用。

关键词：新能源汽车电动汽车交通能源转型