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Control Theory and Technology 2016年第3期14卷 209-223页

作者： carlo NOVARA Enrico CANUTO Donato CARLUCCI Politecnico di Torino Italy

The paper shows that a control strategy with disturbance rejection is able to reduce the control effort to a minimum, ensuring at the same time a desired performance level. The disturbance to be rejected is completely unknown, except for a sectorial bound. The control unit is endowed with an extended state observer which includes a disturbance dynamics, whose state tracks the unknown disturbance to be rejected. In summary, the novel contributions of the paper are the following. First, we derive a robust stability condition for the proposed control scheme, holding for all the nonlinearities that are bounded by a known （or estimated） maximum slope. Second, we propose a novel approach for designing the observer and state feedback gains, which guarantee robust closed-loop stability. Third, we show that the designed control system yields, with a minimum control effort, the same control performance as a robust state feedback control, which on the contrary may require a larger command activity. Two simulated case studies are presented to show the effectiveness of the proposed approach.

关键词： Disturbance rejection extended observer robust stability sector-bounded nonlinear systems

Embedded model control:Reconciling modern control theory and error-based control design

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Control Theory and Technology 2018年第4期16卷 261-283页

作者： Enrico CANUTO carlo NOVARA Luigi COLANGELO Politecnico di Torino Italy

The paper addresses the problem of reconciling the modern control paradigm developed by R. Kalman in the sixties of the past century, and the centenary error-based design of the proportional, integrative and derivative （PID） controllers. This is done with the help of the error loop whose stability is proved to be necessary and sufficient for the close-loop plant stability. The error loop is built by cascading the uncertain plant-to-model discrepancies （causal, parametric, initial state, neglected dynamics）, which are driven by the design model output and by arbitrary bounded signals, with the control unit transfer functions. The embedded model control takes advantage of the error loop and its equations to design appropriate algorithms of the modern control theory （state predictor, control law, reference generator）, which guarantee the error loop stability and performance. A simulated multivariate case study shows modeling and control design steps and the coherence of the predicted and simulated performance.

关键词： Modern control theory error-based design embedded model control error loop disturbance rejection

Photometric study and preliminary elements of the low-mass ratio W UMa system ASAS 021209+2708.3

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Research in Astronomy and Astrophysics 2011年第7期11卷 843-850页

作者： Francesco Acerbi carlo Barani Massimiliano Martignoni Via Zoncada 51 26845 Codogno(LO)Italy Via Molinetto 35 26845 Triulza di Codogno(LO)Italy Via Don G.Minzoni 26/D 20020 Magnago(MI)Italy

We present CCD B and V light curves,obtained in the year 2006,and a photometric solution of the low-mass ratio contact binary ASAS 021209＋2708.3. With our data we were able to determine six new times of minimum light and refine the orbital period of the system to 0.3181963 *** light curves are analyzed using the 2003 version of the Wilson-Devinney program and the analysis was performed with and without adding a spot on the surface of one star because the light curves appear to exhibit a typical O’Connell effect,with Maximum I brighter than Maximum *** results show that ASAS 021209＋2708.3 may be classified as an A-subtype W Ursae Majoris system with a small mass ratio q=0.1889,a large over-contact degree of f= 0.587,a very small difference between the component temperatures of Δ T=53 K and an orbital inclination of i=81°.It is known that deep（f50%） ,low-mass ratio（q0.25） overcontact binary stars are a very important resource for understanding the phenomena of Blue Straggler/FK Com-type *** formations of Blue Straggler stars and FK Com-type stars are unsolved problems in stellar *** of the possible explanations for their formation is from the coalescence of W UMa-type overcontact binary *** absolute dimensions of ASAS 021209＋2708.3 are estimated and its dynamical evolution is inferred.

关键词： binaries:eclipsing–stars:fundamental parameters–stars:individual:ASAS 021209+2708.3

A Complex Systems Science Perspective on Wireless Networks

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Journal of Systems Science & Complexity 2016年第4期29卷 1034-1056页

作者： MACALUSO Irene GALIOTTO carlo MARCHETTI Nicola DOYLE Linda CTVR Telecommunications Research Center Trinity College Dublin

The paper targets a future world where all wireless networks are self-organising entities and in which the predominant mode of spectrum access is dynamic. The paper explores whether the behaviour of a collection of autonomous self-organising wireless systems can be treated as a complex system and whether complex systems science can shed light on the design and deployment of these networks. The authors focus on networks that self-organise from a frequency perspective to understand the behaviour of a collection of wireless self-organising nodes. Each autonomous network is modelled as a cell in a lattice and follows a simple set of self-organisation rules. Two scenarios are considered, one in which each cell is based on cellular automata and which provides an abstracted view of interference and a second in which each cell uses a self-organising technique which more accurately accounts for interference. The authors use excess entropy to measure complexity and in combination with entropy gain an understanding of the structure emerging in the lattice for the self-organising networks. The authors show that the self-organising systems presented here do exhibit complex behaviour. Finally,the authors look at the robustness of these complex systems and show that they are robust against changes in the environment.

关键词： Dynamic spectrum access excess entropy robustness self organising wireless networks.

The role of MicroRNAs in human cancer

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Signal Transduction and Targeted Therapy 2016年第1期1卷 149-157页

作者： Yong Peng carlo M Croce Department of Thoracic Surgery State Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengduChina Collaborative Innovation Center of Biotherapy ChengduChina Department of Molecular Virology Immunology and Medical GeneticsComprehensive Cancer CenterThe Ohio State UniversityColumbusOHUSA

MicroRNAs(miRNAs)are endogenous,small non-coding RNAs that function in regulation of gene *** evidences have demonstrated that miRNA expression is dysregulated in human cancer through various mechanisms,including amplification or deletion of miRNA genes,abnormal transcriptional control of miRNAs,dysregulated epigenetic changes and defects in the miRNA biogenesis *** may function as either oncogenes or tumor suppressors under certain *** dysregulated miRNAs have been shown to affect the hallmarks of cancer,including sustaining proliferative signaling,evading growth suppressors,resisting cell death,activating invasion and metastasis,and inducing *** increasing number of studies have identified miRNAs as potential biomarkers for human cancer diagnosis,prognosis and therapeutic targets or tools,which needs further investigation and *** this review,we focus on how miRNAs regulate the development of human tumors by acting as tumor suppressors or oncogenes.

关键词： expression. cancer invasion

Pulsed laser ablation in liquid of sp-carbon chains:Status and recent advances

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Chinese Physics B 2022年第12期31卷 325-345页

作者： Pietro Marabotti Sonia Peggiani Alessandro Vidale carlo Spartaco Casari Department of Energy Politecnico di MilanoVia Ponzio 34/320133MilanoItaly

This review provides a discussion of the current state of research on sp-carbon chains synthesized by pulsed laser ablation in *** recent years,pulsed laser ablation in liquid(PLAL)has been widely employed for polyynes synthesis thanks to its flexibility with varying laser parameters,solvents,and *** allows the control of sp-carbon chains properties as yield,length,termination and *** many reviews related to PLAL have been published,a comprehensive work reporting the current status and advances related to the synthesis of sp-carbon chains by PLAL is still *** we first review the principle of PLAL and the mechanisms of formation of sp-carbon *** we discuss the role of laser fluence(*** density),solvent,and target for sp-carbon chains ***,we report the progress related to the prolonged stability of sp-carbon chains by PLAL encapsulated in polymeric *** review will be a helpful guide for researchers interested in synthesizing sp-carbon chains by PLAL.

关键词： pulsed laser ablation in liquid sp-carbon chains carbyne carbon nanostructures

Choice for China:What Role for Vocational Education in Green Growth?

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China & World Economy 2014年第5期22卷 55-75页

作者： carlo Jaeger Beijing Normal University

Green growth cannot succeed without significant changes in the education system and the closely related social division of labor. This paper combines historical evidence and a game-theoretic analysis to study the relation between vocational education and green growth. It is found that a low-vocation and a high-vocation equilibrium can be distinguished in the interplay between education and labor markets, and that a high-vocation equilibrium is better suited for green growth. A t the present stage of development, there are tendencies in both directions in China. Therefore, China has the possibility to successfully implement a green growth strategy by developing a strong vocational education with Chinese characteristics.

关键词： China green growth vocational education

Electromagnetic chirality induced by graphene inclusions in multilayered metamaterials

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Photonics Research 2014年第5期2卷 121-125页

作者： carlo Rizza Elia Palange Alessandro Ciattoni Dipartimento di Scienza e Alta Tecnologia Universitàdell’Insubriavia Valleggio 1122100 ComoItaly Consiglio Nazionale delle Ricerche CNR-SPIN67100 Coppito L’AquilaItaly Dipartimento di Scienze fisiche e chimiche Universitàdi L’Aquilavia Vetoio67100 Coppito L’AquilaItaly

We theoretically investigate the electromagnetic response of a novel class of multilayered metamaterials obtained by alternating graphene sheets and dielectric layers,the whole structure not exhibiting a plane of reflection symmetry along the stacking *** show that the electromagnetic response of the structure is characterized by a magneto-electric coupling described by an effective chiral *** the intrinsic tunability of graphene–light coupling,we prove that one can tune both the dielectric and the chiral electromagnetic response by varying the graphene chemical potential through external voltage gating.

关键词： parameter. dielectric chiral

Estimation of the Lyman-α signal of the EFILE diagnostic under static or radiofrequency electric field in vacuum

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Plasma Science and Technology 2018年第7期20卷 1-6页

作者： carlo POGGI Theo GUILLAUME Fabrice DOVEIL Laurence CHIERIGIER-KOVACIC Consorzio RFX Corso Stati UnitiI-35127 PadovaItaly Aix-Marseille Universite CNRSPIIM UMR 7345F-13397 Marseille Cedex 20France

The electric field induced Lyman-a emission diagnostic aims to provide a non intrusive and precise measurement of the electric field in plasma, using a beam of hydrogen atoms prepared in the metastable 2s state. The metastable particles are obtained by means of a proton beam extracted from a hydrogen plasma source, and neutralised by interaction with vaporised caesium. When a 2s atom enters a region where an electric field is present, it undergoes a transition to the 2p state （Stark mixing）. It then quickly decays to the ground level, emitting Lyman-a radiation, which is collected by a photomultiplier. The 2s → 2p transition rate is proportional to the square of the magnitude of the electric field, and depends on the field oscillation frequency （with peaks around l GHz）. By measuring the intensity of the Lyman-a radiation emitted by the beam it is possible to determine the magnitude of the field in a defined region. In this work, an analysis of the behaviour of the diagnostic under static or radiofrequency electric field is presented. Electric field simulations obtained with a finite element solver of Maxwell equations, combined with theoretical calculations of the Stark mixing transition rate, are used to develop a model for the interpretation of photomultiplier data. This method shows good agreement with experimental results for the static field case, and allows to measure the field magnitude for the oscillating case.

关键词： electric field measurement electromagnetic simulations Stark effect plasma diagnostics

Synaptic alterations as a common phase in neurological and neurodevelopmental diseases: JNK is a key mediator in synaptic changes

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Neural Regeneration Research 2023年第3期18卷 531-532页

作者： Clara Alice Musi carlo Bonadonna Tiziana Borsello Department of Pharmacological and Biomolecular Sciences Universitàdegli Studi di MilanoMilanoItaly Mario Negri Insitute for Pharmacolgical Research-IRCCS MilanoItaly

Brain synapses play a key role in neuronal communication:this“conversation”is at the basis of all brain activities and synaptic dysfunction leads to brain *** study the modulators of this crucial synaptic function and we here present the evidence supporting the c-Jun N-terminal kinase(JNK)pathway as a pivotal actor in this scenario.

关键词： alterations diseases neurological