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On the Foundations of Statistical Mechanics: Ergodicity, Many Degrees of Freedom and Inference

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Communications in Theoretical Physics 2014年第10期61卷 469-475页

作者： Sergio Chibbaro lamberto rondoni Angelo Vulpiani Sorbonne Universités UPMC Univ Paris 06CNRSUMR7190Institut Jean Le Rond d’AlembertF-75005 ParisFrance Kavli Institute for Theoretical Physics China CAS Dip.Scienze Matematiche Politecnico di TorinoC.Duca degli Abruzzi 24TorinoItaly INFN Sezione di TorinoVia P.Giuria 1TorinoItaly Dipartimento di Fisica Università "La Sapienza" RomaItaly ISC-CNR Piazzale A.Moro 2 – 00185 RomaItaly

We review the main aspects of the foundations of statistical mechanics. In particular we explain why many degrees of freedom are necessary, while chaos(in the sense of positive Lyapunov exponents) is only marginally r... 详细信息

关键词： ergodic hypothesis chaos emergent properties statical inference

Nonlinear Diffusion and Transient Osmosis

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Communications in Theoretical Physics 2011年第8期56卷 352-366页

作者： Akira Igarashi lamberto rondoni Antonio Botrugno Marco Pizzi Dipartimento di Matematica Politecnico di Torino INFN Sezione di Torino Kavli Institute for Theoretical Physics China CAS Eltek Group

We investigate both analytically and numerically the concentration dynamics of a solution in two containersconnected by a narrow and short channel,in which diffusion obeys a porous medium equation.We also considerthe variation of the pressure in the containers due to the How of matter in the channel.In particular,we identifya phenomenon,which depends on the transport of matter across nano-porous membranes,which we call 'transientosmosis'.We find that nonlinear diffusion of the porous medium equation type allows numerous different osmotic-likephenomena,which are not present in the case of ordinary Fickian diffusion.Experimental results suggest one possiblecandidate for transiently osmotic processes.

关键词：非线性扩散反渗透瞬态多孔介质方程纳米多孔膜浓度动态运输问题渗透过程

Sieving of H_2 and D_2 Through End-to-End Nanotubes

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Communications in Theoretical Physics 2014年第10期61卷 541-549页

作者： Devagnik Dasgupta Debra J.Searles lamberto rondoni Stefano Bernardi Center for Space Human Robotics IITpolitoTorino 10129Italy Department of Mathematical Sciences and Graphene PoliTo Lab Politecnico di TorinoTorino 10126Italy Australian Institute for Bioengineering and Nanotechnology Centre for Theoretical and Computational Molecular Science the University of QueenslandBrisbaneQld 4072Australia School of Chemistry and Molecular Bioscience the University of QueenslandBrisbaneQld 4072Australia Kavli Institute for Theoretical Physics China the Chinese Academy of Sciences INFN Sezione di TorinoVia P.Giuria 1TorinoItaly

We study the quantum molecular sieving of H2 and D2 through two nanotubes placed end-to-end. An analytic treatment, assuming that the particles have classical motion along the axis of the nanotube and are confined in a potential well in the radial direction, is considered. Using this idealistic model, and under certain conditions, it is found that this device can act as a complete sieve, allowing chemically pure deuterium to be isolated from an isotope mixture. We also consider a more realistic model of two carbon nanotubes and carry out molecular dynamics simulations using a Feynman–Hibbs potential to model the quantum effects on the dynamics of H2 and D2. Sieving is also observed in this case, but is caused by a different process.

关键词： molecular sieving quantum sieving molecular dynamics simulation carbon nanotubes

Bibliography on Small Systems: Nonequilibrium Phenomena and Anomalous Behavior

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Communications in Theoretical Physics 2014年第10期61卷 631-633页

作者： LIU Fei lamberto rondoni TANG Lei-Han ZHOU Hai-Jun WANG Yan-Ting

The workshop and satellite conference held in July 2013 at the Kavli Institute for Theoretical Physics China(KITPC)of the Chinese Academy of Sciences(CAS)brought together experts of a variety of different fields,and constituted a unique opportunity to share ideas and breed new ones in a strongly interdisciplinary fashion.At the same time,the breadth of the scope of these two meetings was so wide that the need for a collection of reference

关键词： opportunity collection workshop fashion breed stochastic fluctuation deviation mathematics earlier

Preface to Special Issue on Small Systems: Nonequilibrium Phenomena and Anomalous Behavior

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Communications in Theoretical Physics 2014年第10期61卷 441-442页

作者： LIU Fei lamberto rondoni TANG Lei-Han WANG Yan-Ting ZHOU Hai-Jun

In July 2013,the Kavli Institute for Theoretical Physics China(KITPC)at the Chinese Academy of Sciences(CAS)hosted two important events in the field of Nonequilibrium Statistical Physics and its applications to modern biology and nanotechnology.The first,entitled"Non-Equilibrium Phenomena,Spin Glasses,and Algorithms",held from 1 to5 July 2013,was the Beijing Satellite Meeting of STATPHYS 25.The second,entitled"Small

关键词： entitled nanotechnology Australia relaxation challenging participation interested viewpoint concerning grateful

Development and application of molecular gut-content analysis to detect aphid and coccinellid predation by Harmonia axyridis （Coleoptera： Coccinellidae）in Italy

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Insect Science 2015年第6期22卷 719-730页

作者： Gabriele rondoni Kacie J. Athey James D. Harwood Eric Contit Carlo Ricci John J. Obrycki Department of Agricultural Food and Environmental Sciences University of Perugia Borgo XX Giugno 74 Perugia 06121 Italy and Department of Entomology University of Kentucky S-225 Agricultural Science Center North Lexington KY 40546-0091 USA

Despite their positive effect in reducing pest populations, exotic generalist predators sometimes become invasive and contribute to the displacement of indigenous species in the same trophic level. Although laboratory experiments have linked intraguild predation （IGP） to these interactions, field evidence and quantification of IGP are still lacking for most systems. The recent establishment of the exotic Harmonia axyridis （Pallas）（Coleoptera： Coccinellidae） in Italy raises concern about the detrimental effect that the ladybird could have on native coccinellids. Here we assessed, under laboratory conditions, the acceptability and suitability of eggs of 2 native ladybirds, Adalia bipunctata L. and Oenopia conglobata （L.）, as prey items for H. axyridis larvae. Then we developed primers for molecular gut-content analysis to detect predation by H. axyridis on the 2 ladybirds and on the aphid Eucallipterus tiliae L. Species-specific 16S primers were developed for the 3 species and laboratory feeding trials were conducted to quantify the rate of prey DNA breakdown in the gut of//. axyridis. Moreover, to field evaluate primers, H. axyridis 4th instars （n = 132） were systematically collected from linden trees in northern Italy and screened for the presence of prey DNA. Seventy-three percent and 7% of field collected H. axyridis were positive for aphid and coccinellid DNA, respectively. Predation upon aphid and A. bipunctata was lower than predicted if density dependent consumption was expected, while predation upon O. conglobata was significantly higher. Here, we provided the first evidence of IGP among feral populations ofH. axyridis and indigenous ladybird beetles, occurring in Italy.

关键词： Adalia bipunctata biological control Eucallipterus tiliae intraguild inter-actions nontarget effect Oenopia conglobata