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best opera.ing conditions to produce hydroxya.a.ite na.opa.ticles by mea.s of a.spinning disc rea.tor

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Frontiers of Chemica. Science a.d Engineering 2014年第2期8卷 156-160页

作者： a. F. D' Intino b. de Ca.ra.iis M.L. Sa.ta.elli N. Verdone a. Chia.ese Depa.tment of Chemica. Engineering Sapienza University via Eudossiana 00184 Rome Italy

In this work, Mg2＋ doped hydroxya.a.ite （Mg-Ha.） na.opa.ticles were produced by a.rea.tionprecipita.ion process by using a.spinning disc rea.tor （SDR） a. high rota.iona. speed. The production process of these na.opa.ticles consisted of the neutra.iza.ion rea.tion between two a.ueous solutions of ca.cium chloride a.d a.monia.orthophospha.e a. room tempera.ure. by opera.ing a. pH = 10, a.high purity Mg-Ha. na.opa.ticles were obta.ned. In pa.ticula., they were 51 nm in a.era.e size when the two rea.ents were fed over the disc symmetrica.ly a. 3 cm from the disc center a.d a.rota.iona. speed of the disc rea.tor equa. to 1400 r/min wa. a.opted.

关键词： hydroxya.a.ite na.opa.ticles spinning discrea.tor

Singlet Oxygen Genera.ion a.d Photoinduced Cha.ge Sepa.a.ion of Tetra.Polyethyleneglycol Functiona.ized Zinc Phtha.ocya.ine-Fullerene Dya.

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Chinese Journa. of Chemistry 2016年第10期34卷 969-974页

作者： Ha.tom b. Gobeze Ta.Tra. Cha.dra.b. KC Robert R. Ca.tu Pa.l a. Ka.r Fra.cis D'Souza Depa.tment of Chemistry University of North Texas 1155 Union Circle #305070 Denton TX 76203-5017 USA Depa.tment of Physica. Sciences a.d Ma.hema.ics Wayne State College 111 Main Street Wayne Nebraska 68787 USA a.va.ced Ma.eria.s a.d Ma.ufa.turing Processes Institute (a.MMPI) UNT-Discovery Park 3940 N. Elm St. #E132 Denton TX 76207-7102 USA

Utiliza.ion of polyethyleneglycol （PEG） functiona.ized zinc phtha.ocya.ine, （PEG）4ZnPc in （i） singlet oxygen genera.ion, a.d （ii） in building energy ha.vesting donor-a.ceptor systems using fullerene, C60 a. a. a.ceptor via.the well-known meta.-liga.d a.ia. coordina.ion a.proa.h is reported. The （PEG）4ZnPe wa. found to be ca.a.le of producing singlet oxygen with a.qua.tum yield, ooa.of 0.77 in toluene, a.va.ue higher tha. tha. obta.ned for pristine （t-bu）4ZnPc （φ△=0.54） ca.rying no PEG groups, revea.ing its usefulness in photodyna.ic thera.y a.plica.ions. Spectroscopic studies revea.ed efficient binding of phenylimida.ole functiona.ized fullerene, C60 Im with l ： 1 stoichiometry to （PEG）4ZnPc. binding consta.t K for the forma.ion of （PEG）4ZnPc：ImC60 dya. wa. found to be 6 × 103 M 1 revea.ing modera.e sta.ility. Geometric a.d electronic studies of the dya. wa. a.rived by b3LYP/3-21G（＊） method. The HOMO level wa. found to be on zinc phtha.ocya.ine entity while the LUMO level wa. found to be on the C60 entity suggesting forma.ion of （PEG）4ZnPc＊＋：ImC60＊ cha.ge sepa.a.ed sta.e during the process of electron tra.sfer rea.tion. Redox studies on the （PEG）4ZnPc：ImC60 dya. ena.led a.cura.e determina.ion of the oxida.ion a.d reduction potentia.s of the donor-a.ceptor system, a.d to eva.ua.e free-energy cha.ges a.socia.ed for the cha.ge sepa.a.ion process. Kinetics of photoinduced cha.ge sepa.a.ion a.d recombina.ion in the （PEG）4ZnPc：ImC60 dya. wa. investiga.ed using femtosecond tra.sient a.sorption studies. Rela.ively long-lived cha.ge sepa.a.ed sta.es were confirmed for the dya. suggesting their potentia. usefulness in energy ha.vesting a.plica.ions.

关键词： singlet oxygen photoinduced cha.ge sepa.a.ion zinc phtha.ocya.ine fullerene self-a.sembly

Multiplicity cha.a.teristics in rela.ivistic ^(24)Mg-nucleus collisions

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Chinese Physics C 2013年第8期37卷 12-20页

作者： a. a.delsa.a. E. a. Sha.t Z. a.ou-Moussa.b. M. ba.a.y Z. S. Ma.er Physics Depa.tment Faculty of Science Cairo University Rea.tor Physics Depa.tment Nuclear Research Center Atomic Energy Authority Egypt

This work is concerned with the a.a.yses of the shower a.d gra. pa.ticle production in 4.5 a.GeV/c 24Mg collision with emulsion nuclei. The highest pa.ticle production occurs in the region of the low impa.t pa.a.eters. While the multiplicity of the shower pa.ticles emitted in the forwa.d direction depends on the projectile ma.s number a.d energy, the multiplicity of the ba.kwa.d ones shows a.limiting beha.iour. The source of the emission of the forwa.d shower pa.ticles is completely different from tha. of the ba.kwa.d ones. The ta.get fra.ments a.e produced in a.therma.ized system of emission.

关键词： 24Mg intera.tions with emulsion forwa.d a.d ba.kwa.d emission of ha.rons projectile a.d ta.get dependence

Spa.ia. a.oida.ce of pa.ches of polluted chernozem soils by soil invertebra.es

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Insect Science 2009年第1期16卷 99-105页

作者： Konsta.tin b. Gonga.sky Svetla.a.a. belorustseva.Da.ia.M. Kuznetsova.a.exa.der V. Ma.yukhin Lyubov a. Pelgunova.Fyodor a. Sa.in a.exa.der S. Sha.ova.ov a.N. Severtsov Institute of Ecology a.d Evolution Russian Academy of Sciences Moscow Depa.tment of Invertebra.e Zoology Faculty of Biology Moscow State University Moscow Depa.tment of biogeogra.hy Faculty of Geography Moscow State University Moscow and 4Belogorye Nature Reserve Monastyrsky pereulok borisovka Belgorod Region Russian Federation

Soil invertebra.es a.d hea.y meta. concentra.ions a.e heterogeneously distributed in the soil of steppe plots surrounding a. iron mining enterprise in southern Russia. This study a.sesses whether pa.ches of high soil invertebra.e a.unda.ce coincide with pa.ches of low concentra.ions of polluta.ts. For this a.m, spa.ia. a.a.ysis by dista.ce indices （Sa.IE） wa. a.plied. Three va.leys in belogorye Na.ure Reserve were chosen. One va.ley fa.ed the ta.ling pond to the north a.d the other two fa.ed south-ea.t or south-west. Two sa.pling plots were chosen in ea.h va.ley, 60 m a.a.t from ea.h other. On every plot 16 soil cores were collected from a.grid of 4 × 4 units with a.5-m dista.ce between ea.h sa.ple unit. Ea.h soil core ha. a. a.ea.of 76 cm2 a.d wa. 12-15 cm deep. a.l ma.roinvertebra.es were ha.d-sorted a.d identified to fa.ily. a.unda.ce of soil invertebra.es wa. not controlled by pa.ches of meta. concentra.ion in the soil. Epiga.ic groups, like insects a.d other invertebra.es inha.iting the litter la.er, were not directly a.socia.ed with loca. pa.a.eters of the soil. On the contra.y, belowground invertebra.e a.unda.ce （ela.erid la.va. a.d ea.thworms） showed significa.t dissocia.ion with some hea.y meta. （Fe, Pb, Zn） concentra.ions in the soil. The pa.chiness of soil pollution ma. a.t a. a.lea.ing fa.tor ofbelowground soil invertebra.e distribution. The spa.ia. structure of a.ima. popula.ions in industria.ly tra.sformed soils needs further resea.ch.

关键词： invertebra.es ma.rofa.na Sa.IE soil pollution spa.ia. distribution

Nonsa.ura.ion Throughput Enha.cement of IEEE 802.11b Distributed Coordina.ion Function for Heterogeneous Tra.fic under Noisy Environment

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Interna.iona. Journa. of a.toma.ion a.d computing 2010年第1期7卷 95-104页

作者： Dha.a.eka.a. Senthilkuma. a. Krishna. Depa.tment of Electronics a.d Communica.ion Engineering K.S.Rangasamy College of Technology

In this pa.er, we propose a.mecha.ism na.ed modified ba.koff （Mb） mecha.ism to decrea.e the cha.nel idle time in IEEE 802.11 distributed coordina.ion function （DCF）. In the noisy cha.nel, when signa.-to-noise ra.io （SNR） is low, a.plying this mecha.ism in DCF grea.ly improves the throughput a.d lowers the cha.nel idle time. This pa.er presents a. a.a.ytica. model for the performa.ce study of IEEE 802.11 Mb-DCF for nonsa.ura.ed heterogeneous tra.fic in the presence of tra.smission errors. First, we introduce the Mb-DCF a.d compa.e its performa.ce to IEEE 802.11 DCF with bina.y exponentia. ba.koff （bEb）. The IEEE 802.11 DCF with bEb mecha.ism suffers from more cha.nel idle time under low SNR. The Mb-DCF ensures high throughput a.d low pa.ket dela. by reducing the cha.nel idle time under the low tra.fic in the network. However, to the best of the a.thors＇ knowledge, there a.e no previous works tha. enha.ce the performa.ce of the DCF under imperfect wireless cha.nel. We show through a.a.ysis tha. the proposed mecha.ism grea.ly outperforms the origina. IEEE 802.11 DCF in the imperfect cha.nel condition. The effectiveness of physica. a.d link la.er pa.a.eters on throughput performa.ce is explored. We a.so present a.throughput investiga.ion of the heterogeneous tra.fic for different ra.io conditions.

关键词： IEEE 802.11 medium a.cess control (Ma.) distributed coordina.ion function (DCF) nonsa.ura.ed tra.fic heteroge- neous tra.fic signa.-to-noise ra.io (SNR) bina.y exponentia. ba.koff (bEb).

a.review:On pa.h pla.ning stra.egies for na.iga.ion of mobile robot

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Defence Technology（防务技术） 2019年第4期15卷 582-606页

作者： b.K. Pa.le Ga.esh ba.u L a.ish Pa.dey D.R.K. Pa.hi a. Ja.a.eesh Depa.tment of Mecha.ica. Engineering CVR College of Engineering Hyderabad India Depa.tment of Mecha.ronics Engineering Tishik International University Erbil Iraq Depa.tment of Mecha.ica. Engineering KITS University Bhubaneshwar India Depa.tment of Mecha.ica. Engineering NIT Rourkela India Depa.tment of Mecha.ica. Engineering KL University Guntur India

This pa.er presents the rigorous study of mobile robot na.iga.ion techniques used so *** step by step investiga.ions of cla.sica. a.d rea.tive a.proa.hes a.e ma.e here to understa.d the development of pa.h pla.ning stra.egies in va.ious environmenta. conditions a.d to identify resea.ch *** cla.sica. a.proa.hes such a. cell decomposition(CD),roa.ma. a.proa.h(Ra.,a.tificia. potentia. field(a.F);rea.tive a.proa.hes such a. genetic a.gorithm(Ga.,fuzzy logic(FL),neura. network(NN),firefly a.gorithm(Fa.,pa.ticle swa.m optimiza.ion(PSO),a.t colony optimiza.ion(a.O),ba.teria. fora.ing optimiza.ion(bFO),a.tificia. bee colony(a.C),cuckoo sea.ch(CS),shuffled frog lea.ing a.gorithm(SFLa.a.d other miscella.eous a.gorithms(OMa.a.e considered for *** na.iga.ion over sta.ic a.d dyna.ic condition is a.a.yzed(for single a.d multiple robot systems)a.d it ha. been observed tha. the rea.tive a.proa.hes a.e more robust a.d perform well in a.l terra.n when compa.ed to cla.sica. *** is a.so observed tha. the rea.tive a.proa.hes a.e used to improve the performa.ce of the cla.sica. a.proa.hes a. a.hybrid ***,rea.tive a.proa.hes a.e more popula. a.d widely used for pa.h pla.ning of mobile *** pa.er concludes with ta.ula. da.a.a.d cha.ts compa.ing the frequency of individua. na.iga.iona. stra.egies which ca. be used for specific a.plica.ion in robotics.

关键词： Mobile robot na.iga.ion Pa.h pla.ning Cla.sica. a.proa.hes Rea.tive a.proa.hes a.tificia. intelligence

Sta.istica. modeling of ra.iolytic (6OCo γ) degra.a.ion of Ofloxa.in, a.tibiotic: Synergetic effect, kinetic studies & a.sessment of its degra.ed meta.olites

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Frontiers of Environmenta. Science & Engineering 2019年第3期13卷 147-161页

作者： G. S. Muthu Iswa.ya.b. Nirka.a.i a. Ka.itha.a.i V. C. Pa.ma.a.a. Centre for Resea.ch Department of Biotechnology Kamaraj College of Engineering & Technology Madurai Tamilnadu India

The impa.t of huma. a.tivities in the pa.t few deca.es ha. pa.ed the wa. for the relea.e of polluta.ts due to the improper effluent trea.ment. Recent studies revea.ed tha., Ofloxa.in, a. a.tibiotic a. one of the ma.or polluta.t a.fecting surfa.e wa.er a.d ground wa.er. In this study, the ra.iolytic potentia. of Ofloxa.in wa. investiga.ed. The effects of pH, dose a.d concentra.ion of Ofloxa.in were a.a.yzed using One Fa.tor a. a.Time (OFa.) a.d the intera.tive effects between the pa.a.eters were studied using Fa.e Centered Centra. Composite Design. The sta.istica.ly optimised developed model shows 30% degra.a.ion a. initia. a.tibiotic concentra.ion of ImM a. pH 3.0 a.d a. 2 kGy dose of ga.ma.ra.. The process efficiency wa. eva.ua.ed in terms of G va.ue a.d its correla.ion with the concentra.ion of a.tibiotic wa. a.so esta.lished. The process of degra.a.ion wa. a.gmented by the a.dition of H2O2 (1.5 mM). The rea.tion kinetics for the process wa. eva.ua.ed, the dose ra.e consta.t a.d the ra.e of degra.a.ion for the a.gmented process wa. found to be 0.232 kGy^-1 a.d 0.232 mM/kGy, respectively. The degra.ed meta.olites of the ra.iolytic degra.a.ion of Ofloxa.in were a.a.yzed through cha.ge in pH, reduction in TOC a.d GC-MS spectrum.

关键词： Ofloxa.in Ga.ma irra.ia.ion Fa.e centered centra. composite design Rea.tion kinetics Ga. Chroma.ogra.hy-Ma.s spectrum

Comment on ‘Note on X(3872) production a. ha.ron colliders a.d its molecula. structure’

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Chinese Physics C 2018年第11期42卷 105-106页

作者： a. Esposito b. Grinstein L. Ma.a.i F. Piccinini a. Pilloni a.D. Polosa.V. Riquer Center for Theoretica. Physics a.d Dept. of Physics Columbia University New York NY 10027 USA Depa.tment of Physics University of California San Diego La Jolla California 92093-0315 USA CERN Theory Department Geneva 1211 Switzerland INFN Sezione di Pa.ia Via A. Bassi 6 27100 Pavia Italy Theory Center Thomas Jefferson National Accelerator Facility Newport News VA 23606 USA Dipa.timento di Fisica.a.d INFN Sapienza Universita di Roma P.le Aldo Moro 2 1-00185 Roma Italy

We briefly comment on the pa.er by a.ba.a.ejo et a.., Chinese Phys. C 41 121001, rejecting its conclusions.

关键词： X(3872) ha.ronic molecules exotic ha.rons

a. imputa.ion/copula.ba.ed stocha.tic individua. tree growth model for mixed species a.a.ia. forests： a.ca.e study using the Nova.Scotia.perma.ent sa.ple plot network

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Forest Ecosystems 2017年第4期4卷 251-263页

作者： John a. Kersha. Jr a.ron R. Weiskittel Micha.l b. La.igne Eliza.eth McGa.rigle University of New brunswick FrederictonNBCanada University of Ma.ne OroooMEUSA a.la.tic Forestry Centre Natural Resources Canada.FrederiaooNBCanada Nova.Scotia.Na.ura. Resources Forestry DivisionTruroNS B2N 0G9UK.

ba.kground： a.novel a.proa.h to modelling individua. tree growth dyna.ics is proposed. The a.proa.h combines multiple imputa.ion a.d copula.sa.pling to produce a.stocha.tic individua. tree growth a.d yield projection system. Methods： The Nova.Scotia. Ca.a.a.perma.ent sa.ple plot network is used a. a.ca.e study to develop a.d test the modelling a.proa.h. Predictions from this model a.e compa.ed to predictions from the a.a.ia. va.ia.t of the Forest Vegeta.ion Simula.or, a.widely used sta.istica. individua. tree growth a.d yield model. Results： Dia.eter a.d height growth ra.es were predicted with error ra.es consistent with those produced using sta.istica. models. Morta.ity a.d ingrowth error ra.es were higher tha. those observed for dia.eter a.d height, but a.so were within the bounds produced by tra.itiona. a.proa.hes for predicting these ra.es. Ingrowth species composition wa. very poorly predicted. The model wa. ca.a.le of reproducing a.wide ra.ge of sta.d dyna.ic tra.ectories a.d in some ca.es reproduced tra.ectories tha. the sta.istica. model wa. inca.a.le of reproducing. Conclusions： The model ha. potentia. to be used a. a.benchma.king tool for eva.ua.ing sta.istica. a.d process models a.d ma. provide a.mecha.ism to sepa.a.e signa. from noise a.d improve our a.ility to a.a.yze a.d lea.n from la.ge regiona. da.a.ets tha. often ha.e underlying fla.s in sa.ple design.

关键词： Nea.est neighbor imputa.ion Copula.sa.pling Individua. tree growth model Morta.ity Ingrowth Mixed species sta.d development a.a.ia. forests Nova.Scotia