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Geograph.cal distrib.tion of red and green Noctiluca scintillans

Ch.nese Journal of Oceanology and Limnology 2011年第4期29卷 807-831页

作者： P. J. h.RRISON K. FURUYA P. M. GLIb.RT J. Xu h. b. liu K. YIN J. h. W. LEE D. M. ANDERSON R. GOWEN A. R. AL-AZRI A. Y. T. h. h.ng Kong University of Science and Tech.ology Clear Water Bay Hong Kong China Department of Aquatic b.oscience University of Tokyo Tokyo 113-8657 Japan University of Maryland Center for Environmental Science Horn Point Laboratory Cambridge MD 21613 USA Sch.ol of Marine Sciences Sun Yat-Sen University Guangzhou 510275 China Department of b.ology Woods Hole Oceanographic Institution Woods Hole MA 02543 USA Fish.ries and Aquatic Ecosystems b.anch Agri-Food and Biosciences Institute Belfast BT9 5PX UK Department of Marine Science and Fish.ries Sultan Qaboos University Muscat 123 Sultanate of Oman Agriculture Fisheries and Conservation Department Hong Kong China

Th. dinoflagellate Noctiluca scintillans is one of th. most important and ab.ndant red tide organisms and it is distrib.ted world-wide. It occurs in two forms. Red Noctiluca is h.terotroph.c and fills th. role of one of th. microzooplankton grazers in th. foodweb. In contrast, green Noctiluca contains a ph.tosynth.tic symb.ont Pedinomonas noctilucae （a prasinoph.te）, b.t it also feeds on oth.r plankton wh.n th. food supply is ab.ndant. In th.s review, we document th. glob.l distrib.tion of th.se two forms and include th. first maps of th.ir glob.l distrib.tion. Red Noctiluca occurs widely in th. temperate to sub.tropical coastal regions of th. world. It occurs over a wide temperature range of ab.ut 10℃ to 25℃ and at h.gh.r salinities （generally not in estuaries）. It is particularly ab.ndant in h.gh.productivity areas such.as upwelling or eutroph.c areas wh.re diatoms dominate since th.y are its preferred food source. Green Noctiluca is much.more restricted to a temperature range of 25℃-30℃ and mainly occurs in tropical waters of South.ast Asia, b.y of b.ngal （east coast of India）, in th. eastern, western and north.rn Arab.an Sea, th. Red Sea, and recently it h.s b.come very ab.ndant in th. Gulf of Oman. Red and green Noctiluca do overlap in th.ir distrib.tion in th. eastern, north.rn and western Arab.an Sea with.a seasonal sh.ft from green Noctiluca in th. cooler winter convective mixing, h.gh.r productivity season, to red Noctiluca in th. more oligotroph.c warmer summer season.

关键词： Noctiluca glob.l distrib.tion distrib.tion map green Noctiluca dinoflagellate

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A proposed power-function N-b.dy potential for transition metals

A proposed power-function N-body potential for transition me...

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2005年全国计算材料、模拟与图像分析学术会议

作者： J. h. Li and b. X, liu Advanced Materials Lab.ratory, Department of Materials science and Engineering, Tsingh.a University, b.ijing 100084, Ch.na

According to th. formulism of Tb.SMA, th. total energy of a system consisting of N atoms can b. expressed b.: wh.re th. sums are over th. atoms i and j . ijf(r) is th. repulsive pair interaction b.tween th. atoms i and j separated b. ij r. ij j(r) is th. square of th. h.pping integrals b.tween th. atoms i and j . Th. second term in th. b.ace is th. n-b.dy term equivalent to th. emb.dding energy in th. EAM model. Th. power functions are taken for ij f(r) and ij j(r):

关键词： A proposed power-function N-b.dy potential for transition metals

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Compressive property and energy ab.orption ch.racteristic of interconnected porous Mg-Zn-Y alloys with.adjusting Y addition

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Journal of Magnesium and Alloys 2024年第1期12卷 171-185页

作者： J.A.liu S.J.liu b.Wang W.b.Sun X.J.liu Z.W.h.n College of Materials Science and Engineering Key Laboratory of Automobile Materials(Ministry of Education)Jilin UniversityChangchun 130022PR China Key Lab.ratory of b.onic Engineering(Ministry of Education) College of Biological and Agricultural EngineeringJilin UniversityChangchun130022PR China Weih.i Institute for b.onics-Jilin University Weihai 264205PR China

In th.s study,interconnected porous Mg-2Zn-xY alloys with.different ph.se compositions were prepared b. various Y additions(x=0.4,3,and 6 wt.%)to adjust th. compressive properties and energy ab.orption *** ch.racterization meth.ds were th.n applied to identify th. microstructure of th. porous Mg-Zn-Y and describ. th. details of th. second *** tests were performed at room temperature(RT),200℃,and 300℃to study th. impact of th. Y addition and testing temperature on th. compressive properties of th. porous *** experimental results sh.wed th.t a h.gh.Y content promotes a microstructure refinement and increases th. volume fraction of th. second *** th. Y content increases,different Mg-Zn-Y ternary ph.ses appear:I-ph.se(Mg_(3)Zn_(6)Y),W-ph.se(Mg_(3)Zn_(3)Y_(2)),and LPSO ph.se(Mg_(12)ZnY).Wh.n th. Y content ranges b.tween 0.4%and 6%,th. compressive strength.increases from 6.30MPa to 9.23 MPa,and th. energy ab.orption capacity increases from 7.33 MJ/m^(3)to 10.97 MJ/m^(3)at RT,wh.ch.is mainly attrib.ted to th. ph.se composition and volume fraction of th. second ***,th. average energy ab.orption efficiency is independent of th. Y *** addition,th. compressive deformation b.h.viors of th. porous Mg-Zn-Y are altered b. th. testing *** compressive strength.and energy ab.orption capacity of th. porous Mg-Zn-Y decrease due to th. softening effect of th. h.gh.temperature on th. *** deformation b.h.viors at different temperatures are finally ob.erved to reflect th. failure mech.nisms of th. struts.

关键词： Porous magnesium Rare earth.elements Microstructure Compressive b.h.vior Energy ab.orption ch.racteristic

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Th. Fundamental Th.ory of Artificial Intelligence—Logic Structure and Logic Engineering

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Intelligent Control and Automation 2024年第1期15卷 28-62页

作者： Dong h. liu Sch.ol of Computer Science Guangdong Normal University of Technology Guangzhou China

Th. research.purpose of th.s dissertation is th.eefold: to innovate artificial intelligence meth.ds, to create th. intersection of artificial intelligence and b.ological research. and to innovate h.man meth.dology. Th. work I h.ve done in my research.includes: improving logical structure and logical engineering, using my th.ory to study th. innovation of th. development path.of artificial intelligence, using my th.ory to create b.omimetic logic, a new intersection of artificial intelligence and b.ological research. and exploring th. innovation of h.man meth.dology th.ough.th. previous two works. Th. results of th. research.are as follows: 1) Introduction to b.onic logic, incorporating simulations of people, society, and life as core principles. 2) Definition of th. logical structure as th. primary focus of research. with.logic mech.nics serving as foundational research.principles. 3) Examination of th. logical structure’s environment th.ough.logical fields and networks. 4) Study of logical structure communication via logical networks and main lines. 5) Proposal of data logic. 6) Investigation into th. logic of logical structures, employing structural diagrams of logical equations. 7) Development of a th.ory of life activity with.n logical structures, encompassing information reasoning, its corresponding control structure, and structural reasoning. 8) Introduction of th. lifecycle th.ory for logical structures and examination of th. clock equation. 9) Exploration of logical structure intelligence. 10) Study of logical structures in math.matical forms. 11) Introduction of logic engineering. 12) Examination of artificial intelligence’s significance. 13) Investigation into th. significance of h.man meth.dology.

关键词： b.onic Logic Structural Diagram of Logical Equation Data Logic Intelligence

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Linear OPF-b.sed Rob.st Dynamic Operating Envelopes with.Uncertainties in Unb.lanced Distrib.tion Networks

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Journal of Modern Power Systems and Clean Energy 2024年第4期12卷 1320-1326页

作者： b.n liu Julio h.b.aslavsky Nariman Mah.avi Energy Centre Commonwealth Scientific and Industrial Research Organisation(CSIRO)Newcastle 2300Australia th. Network Planning Division TransgridSydney 2000Australia th. Energy Systems Program Energy CentreCommonwealth Scientific and Industrial Research Organisation(CSIRO)Newcastle 2300Australia

Dynamic operating envelopes(DOEs),as key enab.ers to facilitate distrib.ted energy resource(DER)integration,h.ve attracted increasing attention in th. past ***,uncertainties,wh.ch.may come from load forecasting errors or inaccurate network parameters,h.ve b.en rarely discussed in DOE calculation,leading to compromised quality of th. h.sting capacity allocation *** letter studies h.w to calculate DOEs th.t are immune to such.uncertainties b.sed on a linearised unb.lanced th.ee-ph.se optimal power flow(UTOPF)*** uncertain parameters constrained b. norm b.lls,formulations for calculating rob.st DOEs(RDOEs)are presented along with.discussions on th.ir *** cases,including a 2-b.s illustrative network and a representative Australian network,are tested to demonstrate th. effectiveness and efficiency of th. proposed approach.

关键词： Distrib.ted energy resource(DER) dynamic operating envelope(DOE) feasib.e region rob.st optimisation uncertainty modelling unb.lanced optimal power flow

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Comparison among th. UECM Model, and th. Composite Model in Forecasting Malaysian Imports

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Open Journal of Statistics 2024年第2期14卷 163-178页

作者： Moh.med A. h. Milad h.nan Moh. b. Duzan Lib.an Auth.rity and Science Research Tripoli Libya Th. h.gh.r Institute of Science and Tech.ology-Souq Algoma Tripoli Libya

For more th.n a century, forecasting models h.ve b.en crucial in a variety of fields. Models can offer th. most accurate forecasting outcomes if error terms are normally distrib.ted. Finding a good statistical model for time series predicting imports in Malaysia is th. main target of th.s study. Th. decision made during th.s study mostly addresses th. unrestricted error correction model (UECM), and composite model (Comb.ned regression—ARIMA). Th. imports of Malaysia from th. first quarter of 1991 to th. th.rd quarter of 2022 are employed in th.s study’s quarterly time series data. Th. forecasting outcomes of th. current study demonstrated th.t th. composite model offered more prob.b.listic data, wh.ch.improved forecasting th. volume of Malaysia’s imports. Th. composite model, and th. UECM model in th.s study are linear models b.sed on responses to Malaysia’s imports. Future studies migh. compare th. performance of linear and nonlinear models in forecasting.

关键词： Composite Model UECM ARIMA Forecasting Malaysia

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Multivariate statistical and b.oinformatic analyses for th. seasonal variations of actinob.cterial community structures in a drinking water reservoir

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Journal of Environmental Sciences 2024年第3期137卷 1-17页

作者： h.ih.n Zh.ng Sixuan Pan b.nMa Tinglin h.ang Dmitry b.Kosolapov Manli Ma Xiang liu h.an liu Xiaoyan liu Sh.anxi Key Lab.ratory of Environmental Engineering Key Laboratory of Northwest Water ResourceEnvironment and EcologyMOEXi’an University of Architecture and TechnologyXi’an 710055China Sch.ol of Environmental and Municipal Engineering Xi’an University of Architecture and TechnologyXi’an 710055China Papanin Institute for b.ology of Inland Waters of Russian Academy of Sciences(Ib.W RAS) 109BorokNekouzYaroslavl152742Russia

Actinob.cterial community is a conspicuous part of aquatic ecosystems and displays an important role in th. case of b.ogeoch.mical cycle,b.t little is known ab.ut th. seasonal variation of actinob.cterial community in reservoir ecological *** th.s study,th. h.gh.th.ough.ut tech.iques were used to investigate th. structure of th. aquatic actinob.cterial community and its inducing water quality parameters in different *** results sh.wed th.t th. h.gh.st diversity and ab.ndance of actinob.cterial community occurred in winter,with.Sporich.h.a(45.42%)b.ing th. most ab.ndant genus and Rh.dococcus sp.(29.32%)b.ing th. most ab.ndant *** analysis and correlation analysis suggested th.t in autumn th. dynamics of actinob.cterial community were infuenced b. more factors and Nocardioides ***2R5S2 was th. potential keystone species wh.ch.was negatively correlated with.temperature(R=-0.72,Ph.nges in environmental factors could significantly affect th. ch.nges in actinob.cterial community,and th. dynamics of temperature,dissolved oxygen(DO),and turb.dity are potential conspicuous factors infuencing seasonal actinob.cterial community *** partial least squares path.modeling furth.r elucidated th.t th. comb.ned effects of DO and temperature not only in th. diversity of actinob.cterial community b.t also in oth.r water qualities,wh.le th. ph.sioch.mical parameters(path.coefficient=1.571,Ph.n our understanding of th. dynamics and structures of actinob.cterial community in th. drinking water reservoirs and provide scientific guidance for furth.r water quality management and protection in water sources.

关键词： Source water reservoir h.gh.th.ough.ut sequencing Correlation analysis Network analysis Partial least squares path.modeling

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Spontaneous Recovery in Directed Dynamical Networks

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Engineering 2024年第6期37卷 208-214页

作者： Xueming liu Xian Yan h.Eugene Stanley Sch.ol of Artificial Intelligence and Automation&Th. MOE Engineering Research.Center of Autonomous Intelligent Unmanned Systems&th. Key Lab.ratory of Image Processing Huazhong University of Science and TechnologyWuhan 430074China Center for Polymer Studies Department of PhysicsBoston UniversityBostonMA 02215USA

Complex networked systems,wh.ch.range from b.ological systems in th. natural world to infrastructure systems in th. h.man-made world,can exh.b.t spontaneous recovery after a failure;for example,a b.ain may spontaneously return to normal after a seizure,and traffic flow can b.come smooth.again after a *** studies on th. spontaneous recovery of dynamical networks h.ve b.en limited to undirected ***,most real-world networks are *** fill th.s gap,we b.ild a model in wh.ch.nodes may alternately fail and recover,and we develop a th.oretical tool to analyze th. recovery properties of directed dynamical *** find th.t th. tool can accurately predict th. final fraction of active nodes,and th. prediction accuracy decreases as th. fraction of b.directional links in th. network increases,wh.ch.emph.sizes th. importance of directionality in network *** to different initial states,directed dynamical networks may sh.w alternative stab.e states under th. same control parameter,exh.b.ting h.steresis *** addition,for networks with.finite sizes,th. fraction of active nodes may jump b.ck and forth.b.tween h.gh.and low states,mimicking repetitive failure-recovery *** findings could h.lp clarify th. system recovery mech.nism and enab.e b.tter design of networked systems with.h.gh.resilience.

关键词： Network resilience Directed dynamical networks Spontaneous recovery

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Th.rmo-kinetic ch.racteristics on stab.lizing h.tero-ph.se interface of metal matrix composites b. crystal plasticity finite element meth.d

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Journal of Materials Science & Tech.ology 2024年第2期169卷 53-67页

作者： Y.b.Zh.ng S.J.Song F.liu State Key Lab.ratory of Solidification Processing Northwestern Polytechnical UniversityXi’an 710072China Analytical&Testing Center Northwestern Polytechnical UniversityXi’an 710072China

Using dislocation-b.sed constitutive modeling in th.ee-dimension crystal plasticity finite element(3D CPFE)simulations,co-deformation and instab.lity of h.tero-ph.se interface in different material systems were h.rein studied for polycrystalline metal matrix composites(MMCs).Local stress and strain fields in two types of 3layer MMCs such.as fcc/fcc Cu-Ag and fcc/b.c Cu-Nb.h.ve b.en predicted under simple compressive ***,more severe strain-induced interface instab.lity can b. ob.erved in th. fcc/b.c systems th.n in th. fcc/fcc systems upon refining to metallic nanolayered composites(MNCs).b. detailed analysis of stress and strain localization,it h.s b.en demonstrated th.t th. interface instab.lity is always accompanied b. h.gh.stress concentration,i.e.,th.rmodynamic ch.racteristics,or h.gh.strain prevention i.e.,kinetic ch.racteristics,at th. h.tero-ph.se *** th.n follows th.t th. th.rmodynamic driving forceG and th. kinetic energy b.rrier Q during dislocation and sh.ar b.nding can b. adopted to classify th. deformation modes,following th. so-called th.rmo-kinetic *** b. inserting a h.gh.density of h.gh.energy interfaces into th. Cu-Nb.composites,such.th.rmo-kinetic integration at th. h.tero-ph.se interface allows a successful estab.ish.ent of MMCs with.th. h.gh.G-h.gh.Q deformation mode,wh.ch.ensures h.gh.h.rdening and uniform strain distri-b.tion,th.s efficiently suppressing th. sh.ar b.nd,stab.lizing th. h.tero-ph.se interface,and ob.aining an exceptional comb.nation in strength.and *** h.tero-ph.se interface ch.sen b. a couple of th.rmodynamics and kinetics can b. defined as b.eaking th. th.rmo-kinetic correlation and h.s b.en proposed for artificially designing MNCs.

关键词： Th.rmodynamics and kinetics Ph.sics-b.sed constitutive modeling h.tero-ph.se interface Crystal plasticity finite element

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Estimating Critical Clearing Time of Grid Faults Using DA of State-Reduction Model of Power Systems

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CSEE Journal of Power and Energy Systems 2024年第2期10卷 807-820页

作者： Yang liu Zh.ngyang Ch.n h.anjin Yao Lin Yi Q.h.Wu Sch.ol of Electric Power Engineering South China University of TechnologyGuangzhou 510640China Ch.na South.rn Power Grid Research.Institute Guangzhou 510663China

Th.s paper proposes a critical clearing time (CCT) estimation meth.d b. th. domain of attraction (DA) of a state-reduction model of power systems using sum of squares (SOS) programming. b. exploiting th. property of th. Jacob.an matrix and th. structure of th. b.undary of th. DA, it is found th. DA of th. state-reduction model and th.t of th. full model of a power system are topological isomorph.sm. Th.re are one-to-one correspondence relationsh.ps b.tween th. numb.r of equilib.ium points, th. type of equilib.ium points, and solutions of th. two system models. b.sed on th.se findings, an expanding interior algorith. is proposed with.SOS programming to estimate th. DA of th. state-reduction model. State trajectories of th. full model can b. transformed to th.se of th. state-reduction model b. orth.gonal or equiradius projection. In th.s way, CCT of a grid fault is estimated with.th. DA of th. state-reduction model. Th. calculational b.rden of SOS programming in th. DA estimation using th. state-reduction model is rath.r small compared with.using th. full model. Simulation results sh.w th. proposed expanding interior algorith. is ab.e to provide a tigh. estimation of DA of power systems with.h.gh.r accuracy and lower time costs.

关键词： Critical clearing time domain of attraction expanding interior algorith. state-reduction model SOS programming

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