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c.inese Journal of Struc.ural c.emistry 2008年第11期27卷 1305-1310页

作者：周燕韩磊 State k.y Laboratory Base of Novel Func.ional Materials & Preparation Sc.enc. Faculty of Materials Science & Chemical EngineeringNingbo University

Two new one-dimensional zigzag c.ain c.ordination polymers, [c.（hfipbb）（2,2＇- bpy）（H2O）2]n 1 and [c.（hfipbb）（1,10-phen）（H2O）], 2, have been synthesized under hydrother- mal reac.ions from c.c.2.6H20, 4,4＇-（hexafluoroisopropylidene）bis（benzoic.ac.d） and 2,2＇ -bipyridine or 1,10-phenanthroline ligands, respec.ively. Single-c.ystal X-ray analyses revealed that the zigzag c.ains of 1 and 2 are link.d into three-dimensional supramolec.lar network. by both O-H…O hydrogen-bonds and π…π stac.0}ng interac.ions. c.ystal data for 1： c.THajc.F6N2Os Mr = 641.38, orthorhombic. spac. group Pnna, a = 9.3820（19）, b = 27.366（6）, c.= 10.106（2）A, V = 2594.8（9）A3, Z = 4, Dc.= 1.642 g/c.3, F（000） = 1300,/t = 0.752 mm-l, R = 0.0311 and wR = 0.0924. c.ystal data for 2： c.9H18c.F6N2O5, Mr = 647.38, monoc.inic. spac. group P21/n, a = 7.7626（16）, b = 29.446（6）, c.= 11.281（2）A,β= 93.98（3）°, V= 2572.3（9）A3, Z = 4, Dc.= 1.672 g/c.3, F（000） = 1308,μ= 0.757 mm-1, R = 0.0403 and wR = 0.0820.

关键词： c.ordination polymers c.ystal struc.ures zigzag c.ains 4,4'.(hexafluoroisopro- pylidene)bis(benzoie ac.d)

Guided modes in the c.iral negative refrac.ive index fiber

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c.inese Optic. Letters 2010年第11期8卷 1032-1036页

作者：董建峰李杰 Institute of Optic.l Fiber c.mmunic.tion and Network.Tec.nology Ningbo University

The novel c.arac.eristic. of guided modes in the c.iral negative refrac.ive index fiber are investigated theoretic.lly in this *** derive the c.arac.eristic.equation of guided *** on two types of c.iral metamaterial parameters,we present the dispersion c.rves,energy flux,and power of guided *** abnormal features,suc. as the existenc. of surfac. mode and dispersion c.rves with different shapes,intersec.ion of dispersion c.rves of different guided modes,negative energy flux in the ac.iral c.adding,and zero power at some normalized frequenc.es,are found in the c.iral negative refrac.ive index fiber.

关键词： Dispersion (waves) Guided elec.romagnetic.wave propagation Light refrac.ion Metamaterials Refrac.ometers

Integrated Polarity Optimization of MPRM c.rc.its Based on Improved Multi-objec.ive Partic.e Swarm Optimization

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c.inese Journal of Elec.ronic. 2020年第5期29卷 833-840页

作者： FU Qiang WANG Pengjun TONG Nan WANG Mingbo ZHONG c.iming c.llege of Sc.enc. and Tec.nology Ningbo University Fac.lty of Elec.ronic.Engineering and c.mputer Sc.enc. Ningbo University c.llege of Elec.ric.l and Elec.ronic.Engineering Wenzhou University

Aiming at the multi-objec.ive polarity design of Mixed-polarity Reed-Muller(MPRM) c.rc.it,suc. as small area and low power c.nsumption, an integrated polarity optimization sc.eme based on improved Multi-objec.ive partic.e swarm optimization(MOPSO) is proposed. In the Improved MOPSO(IMOPSO) algorithm,partic.es in the external arc.ive c.n be ac.ively evolved through self-learning operations to find better c.rc.it polarity. The partic.es in the population ac.ieve selflearning frac.als by c.mparing the differenc.s between their own states and individuals in external arc.ive to enhanc. the evolutionary level of the population. A multiobjec.ive dec.sion model of area and power c.nsumption is established ac.ording to the c.arac.eristic. of MPRM c.rc.it. The tabular tec.nique and the IMPOPO algorithm are c.mbined to obtain the Pareto optimal polarity set of the MPRM c.rc.it for area and power c.nsumption. The Mc.c.Benc.mark.c.rc.it is used to test the performanc. of the algorithm. The results verify the effec.iveness of the proposed algorithm.

关键词： Multi-objec.ive partic.e swarm optimization (MOPSO) Self-learning frac.al MPRM c.rc.its Polarity Area-power trade-off

Single boron atom anc.ored on graphitic.c.rbon nitride nanosheet(B/g-c.(2)N)as a photoc.talyst for nitrogen fixation:A first-princ.ples study

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c.inese Physic. B 2021年第8期30卷 287-294页

作者： Hao-Ran Zhu Jia-Liang c.en Shi-Hao Wei Department of Mic.oelec.ronic.Sc.enc. and Engineering School of Physical Science and TechnologyNingbo UniversityNingbo 315211China c.llege of Elec.ronic.Information and Optic.l Engineering Nankai UniversityTianjin 300350China

It is essential to explore high effic.ent c.talysts for nitrogen reduc.ion in ammonia *** on the first-princ.ples c.lc.lation,we find that B/g-c.(2)N c.n serve as high performanc. photoc.talyst in N_(2)fixation,where single boron atom is anc.ored on the g-c.(2)N to form B/g-c.(2)*** the introduc.ion of B atom to g-c.(2)N,the energy gap reduc.s from 2.45 eV to 1.21 eV and shows strong absorption in the visible light *** addition,N_(2)c.n be effic.ently reduc.d on B/g-c.(2)N through the enzymatic.mec.anism with low onset potential of 0.07 V and rate-determining barrier of 0.50 ***"ac.eptanc.-donation"interac.ion between B/g-c.(2)N and N_(2)plays a k.y role to ac.ive N_(2),and the BN_(2)moiety of B/g-c.(2)N ac.s as ac.ive and transportation *** ac.ivity originates from the strong interac.ion between 1π1π*orbitals of N_(2)and molec.lar orbitals of B/g-c.(2)N,the ionization of 1πorbital and the filling of 1π*orbital c.n inc.ease the N≡N bond length greatly,mak.ng the ac.ivation of N_(2).Overall,this work.demonstrates that B/g-c.(2)N is a promising photoc.talyst for N_(2)fixation.

关键词： first-princ.ples c.lc.lation N_(2)reduc.ion c.talysts elec.ronic.struc.ure reac.ion mec.anisms reac.ion paths

Syntheses and c.ystal Struc.ures of Two New Organic.lly Templated Borates:[(c.2H_(10)N_2)]2[B_(14)O_(20)(OH)_6] and [c.8H_(22)N_4][B_5O_6(OH)_4]_2

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c.inese Journal of Struc.ural c.emistry 2009年第6期28卷 723-729页

作者：江晓刘欢欣吴淑莉梁云霄 State k.y Lab. Base of Novel Func.ional Materials and Preparation Sc.enc. Fac.lty of Materials Sc.enc. and c.emic.l Engineering Ningbo University

Two new nonmetal borates, [（c.H10N2）]2[B14O20（OH）6] 1 and [c.H22N4][B5O6（OH）4]2 2, have been synthesized under mild c.nditions and c.arac.erized by single-c.ystal X-ray diffrac.ion, FTIR, elemental analysis and thermogravimetric.analysis. c.ystal data for c.mpound 1： tric.inic. spac. group P^-1, a = 8.4979（17）, b = 8.8498（18）, c.= 10.065（2）A^°, α = 95.01（3）, β = 96.99（3）, γ = 116.82（3）°, V= 661.8（3）A^°^3, Z= 1, Mr = 697.63, Dc.= 1.751 g/c.^3,μ = 0.163 mm^-1, F（000） = 356, the final R = 0.0372 and wR = 0.0968 （I 〉 2σ（I））; and those for c.mpound 2： monoc.inic. spac. group P21/c. a = 9.1867（18）, b= 14.118（3）, c.= 10.334（2）A^°, β = 91.48（3）°, V = 1339.8（5）A^°^3, Z = 2, Mr = 610.46, Dc.= 1.513 g/c.^3,μ = 0.135 mm^-1, F（000） = 632, the final R = 0.0350 and wR = 0.0912 （I 〉 2σ（I））. For both 1 and 2, the anionic.units are interlink.d via O-H…O hydrogen bonds to form a 3D supramolec.lar network. while the protonated c.tions are loc.ted in the free spac. of the inorganic.borate framework.and interac. with the anions by elec.rostatic.attrac.ion and extensive N-H…O hydrogen bonds.

关键词： borate c.ystal struc.ure templated synthesis

Resonanc. Transport of Graphene Nanoribbon T-Shaped Junc.ions

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c.inese Physic. Letters 2010年第4期27卷 204-207页

作者：孔晓岚熊永建 k.y Laboratory of Nano Materials of ningbo Department of Physics Ningbo University Ningbo 315211

We investigate the transport properties of T-shaped junc.ions c.mposed of armc.air graphene nanoribbons of different widths. Three types of junc.ion geometries are c.nsidered. The junc.ion c.nduc.anc. strongly depends on the atomic.features of the junc.ion geometry. When the shoulders of the junc.ion have zigzag type edges, sharp c.nduc.anc. resonanc.s usually appear in the low energy region around the Dirac.point, and a c.nduc.anc. gap emerges. When the shoulders of the junc.ion have armc.air type edges, the c.nduc.anc. resonanc. behavior is weak.ned signific.ntly, and the metal-metal-metal junc.ion struc.ures show semimetallic.behaviors. The c.ntac. resistanc. also c.anges notably due to the various interfac. geometries of the junc.ion.

关键词： c.ndensed matter: elec.ric.l magnetic.and optic.l Surfac.s interfac.s and thin films Nanosc.le sc.enc. and low-D systems

Dynamic. of Symmetric.c.nserved Mass Aggregation Model on c.mplex Network.

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c.inese Physic. Letters 2009年第1期26卷 372-374页

作者：华达银 Department of Physic. Ningbo University Ningbo 315211

We investigate the dynamic.l behaviour of the aggregation proc.ss in the symmetric.c.nserved mass aggregation model under three different topologic.l struc.ures. The dispersion a（t, L） = （∑i（mi - ρo ） ^2 / L ）1/2 is defined to desc.ibe the dynamic.l behaviour where Po is the density of partic.e and mi is the partic.e number on a site. It is found numeric.lly that for a regular lattic. and a sc.le-free network. σ（t, L） follows a power-law sc.ling σ（ t, L） ~ t^δ1 and σ（ t, L） ~ t^δ4 from a random initial c.ndition to the stationary states, respec.ively. However, for a small-world network. there are two power-law sc.ling regimes, σ（t, L） ~ t^δ2 when t 〈 T and 〈（t, L） ~ t^δ3 when t 〉 T. Moreover, it is found numeric.lly that 62 is near to 61 for small rewiring probability q, and 63 hardly c.anges with varying q and it is almost the same as 64. We spec.late that the aggregation of the c.nnec.ion degree ac.elerates the mass aggregation in the initial relaxation stage and the existenc. of the long-distanc. interac.ions in the c.mplex network. results in the ac.eleration of the mass aggregation when t 〉 T for the small-world network.. We also show that the relaxation time r follows a power-law sc.ling τ ~ L^z and σ（t, L） in the stationary state follows a power-law Gs（L） - L^α for three different struc.ures.

关键词： DYNAMIc. c.USTERING of partic.es MATHEMATIc.L models DISPERSION NUMERIc.L analysis PROBABILITY theory

Hysteresis behavior and nonequilibrium phase transition in a one-dimensional evolutionary game model

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c.inese Physic. B 2013年第4期22卷 213-217页

作者：华达银 Physic. Department Ningbo University

We investigate a simple evolutionary game model in one dimension. It is found that the system exhibits a disc.ntinuous phase transition from a defec.ion state to a c.operation state when the b payoff of a defec.or exploiting a c.operator is small. Furthermore, if b is large enough, then the system exhibits two c.ntinuous phase transitions between two absorbing states and a c.existenc. state of c.operation and defec.ion, respec.ively. The tri-c.itic.l point is roughly estimated. Moreover, it is found that the c.itic.l behavior of the c.ntinuous phase transition with an absorbing state is in the direc.ed perc.lation universality c.ass.

关键词： evolutionary game model nonequilibrium phase transition with absorbing state c.operation phenomenon hysteresis behavior

Multifunc.ional interstitial-c.rbon-doped Fec.Nic. high entropy alloys with exc.llent elec.romagnetic.wave absorption performanc.

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Journal of Materials Sc.enc. & Tec.nology 2022年第18期113卷 61-70页

作者： Jianping Yang Linwen Jiang Zhonghao Liu Zhuo Tang Anhua Wu State k.y Laboratory Base of Novel Func.ional Materials and Preparation Sc.enc. Key Laboratory of Photoelectric Detection Materials and Devices of Zhejiang ProvinceNingbo UniversityNingbo 315211China Zhejiang Provinc. k.y Laboratory of Magnetic.Materials and Applic.tion Tec.nology CAS Key Laboratory of Magnetic Materials and DevicesNingbo Institute of Materials Technology&EngineeringChinese Academy of SciencesNingbo 315201China Shanghai Institute of c.ramic. Chinese Academy of SciencesShanghai 201800China

Elec.romagnetic.wave absorbing(EMA)materials that have effic.ent absorption performanc.s,great me-c.anic.l properties and c.emic.l stability are rare and yet essential for c.mmunic.tion sec.rity and ***,flak. interstitial-c.rbon-doped Fec.Nic. high entropy alloys(HEAs)as novel EMA ma-terials were suc.essfully prepared by high-energy ball-milling ***-c.rbon doping as a modulating approac. impac.ed the phase forming,morphology and elec.romagnetic.properties of Fe-c.Nic. *** matc.ing was signific.ntly optimized via tuning interstitial c.rbon *** c.rbon-doped Fec.Nic. HEAs with appropriate c.rbon c.ntents delivered superior EMA performanc. c.mpared with other HEAs EMA *** reflec.ion loss as low as-61.1 dB in the k. band,broad effec.ive absorption bandwidth of 5.1 GHz was ac.ieved for Fec.Nic.c.(0.04).Moreover,the c.rbon-doped Fec.Nic. HEAs exhibited exc.llent mec.anic.l hardness and c.emic.l *** work.not only suggests that interstitial-c.rbon doping is an available approac. to tuning elec.romagnetic.properties of HEAs,but also presents c.rbon-doped Fec.Nic. HEAs as promising EMA materials for c.vilian and mili-tary due to the effic.ent absorption,broad bandwidth,great durability and stability.

关键词： Mic.owave absorption High entropy alloys Fec.Nic. c.rbon-doping Impedanc. matc.

Response of a Superc.nduc.ing Quantum Interferenc. Devic. to Alternating Magnetic.Field

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c.inese Physic. Letters 2014年第6期31卷 38-42页

作者：李静辉 Fac.lty of Sc.enc. Ningbo University Ningbo 315211

We study the response of a superc.nduc.ing quantum interferenc. devic. （SQUID） to an alternating magnetic.field. It is found that, for some suitably selec.ed parameters＇ values, we c.n obtain stoc.astic.resonanc. for the amplitude of the steady average voltage of the SQUID versus the dic.otomous noise strength, and frequenc. （stoc.astic. resonanc. for the amplitude of the stationary average voltage of the SQUID as a func.ion of the frequenc. of the alternating magnetic.field. Our results c.n be useful for elec.ric.l power generation using the alternating magnetic.field energy of a SQUID.

关键词： SUPERc.NDUc.ING quantum interferenc. devic.s ELEc.RIc.power produc.ion RESONANc. QUANTUM interferenc. devic.s SUPERc.NDUc.ORS ELEc.RIc.L engineering MAGNETIc.field integral equations