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  • Authors: Hiligsmann, Mickael; Reginster, Jean-Yves; Silverman, Stuart;
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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: Brooks, Nathan Charles;

    Power electronics design best configures available electrical devices—transistors, inductors, and capacitors—to realize a theoretical power conversion function in the smallest, lightest, cheapest, and most efficient manner. In particular, hybrid switched-capacitor converters are a contemporary and high-performance class of circuit topology utilizing both inductors and capacitors. To better understand how these converters behave and are realized in practice, this manuscript will explore several contributing design aspects—modeling, passive devices, and practical printed circuit board layout—applied to a particular circuit topology of active research interest.First, the thesis will explore the results of a comprehensive survey of commercial passive components and how their figures-of-merit might be used to inform converter design. The survey explores the capabilities of prominent types of discrete capacitors and inductors. Then this manuscript applies this survey to the design of an aluminum electrolytic capacitor bank on the dc-link of a single-phase power conversion system.Second, this thesis analyzes dynamical modeling for the flying capacitor multilevel (FCML) power converter, a topology with nearly inexhaustible switching state combinations. It presents a simplified derivation and abstraction of a conventional averaged Fourier-derived model for this FCML switching-circuit topology, and it provides extensions to existing work and explores design implications. Next, this manuscript outlines a methodology for deriving a functional, accurate, and computationally efficient discrete-time state-space dynamical model for the FCML converter; this model is validated with results measured from a high-performance hardware prototype.Finally, the thesis investigates the usage of multilevel converters to demonstrate the underlying feasibility of the single-stage buck-type power factor correction (PFC) rectifier. A high-performance multilevel converter prototype is developed with an especial focus on compactness, high efficiency, and low-inductance layout in the switching commutation loops. Then the theoretic input current harmonics, power factor, and total harmonic distortion of the buck PFC are derived and compared to the prevailing regulatory IEC current emission standards.

    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ eScholarship - Unive...arrow_drop_down
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      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
  • image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Authors: Glikin, Neil;

    This work presents the techniques used to create a freely rotating trapped-ion Coulomb crystal and to establish quantum coherent control over this rotational motion. This is done using a highly symmetric surface ion trap with circular trapping electrodes. We derive how a trapped-ion rotor couples to coherent laser light, including the motional transition sideband spectrum and the corresponding coupling strengths. We also show how rotational motion modifies the coupling of the usual trapped-ion vibrational motion to laser light. In our experiments, light which is coupled to the rotor's motion propagates nearly normal to the trap surface, which is thus also sensitive to vibrational motion in this direction. We thus also present the design of and benchmark the performance of a Faraday cage which has successfully protected this motion from harmful electric field noise.A prerequisite to clean, coherent manipulation of the rotational quantum state of our rotor is preparing it in a rapidly rotating state with a small uncertainty in its angular momentum. This rotational state preparation is done with by accelerating a rotating quadrupole field via time-dependent voltages applied directly to the trap electrodes, resulting in rotation frequencies of 100's of kHz with uncertainties within 1 kHz. We show how this procedure allows for creation of superpositions of angular momentum states, and present considerations and measurements pertaining to optimizing this procedure. We find that the coherence of these superpositions is limited by angular momentum diffusion processes induced by coupling to noisy electric field gradients. Careful measurements of these rotor decoherence dynamics demonstrate close agreement with the corresponding theory for the first time.Finally, we present a proposal to use angular momentum superpositions of our trapped ion rotor as an interferometer in which we may exchange the positions of two ions. This experiment would serve as a test of the symmetrization of their mutual quantum state, and would be sensitive to the phase of the exchange operation without requiring the two particles to coincide spatially. We interpret the physical meaning of this exchange phase measurement and present detailed considerations of potential errors.

    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao eScholarship - Unive...arrow_drop_down
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
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      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao eScholarship - Unive...arrow_drop_down
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
  • Authors: Bezas, Marios-Zois; Demonceau, Jean-François; Vayas, Ioannis; Jaspart, Jean-Pierre;

    Angle profiles belong to the most common structural steel shapes used in construction. They exhibit specific features that distinguish them from other types of common sections. This paper presents specific rules for the classification of angle profiles as well as formulas for the design cross-section resistances. The rules are based on theoretical-analytical considerations and are subjected to extensive numerical validation. They are written in Eurocode 3 format so as to allow a direct possible inclusion in forthcoming drafts. They cover all cross-section classes and allow a smooth transition between them.

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  • Authors: Feng, Xiaoxu;
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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: Ma, Yue;

    The frequent outbreaks of foodborne and waterborne diseases have become a serious public health issue, which is related to the presence of microbial biofilms on surfaces of materials. Current research activities aiming at reducing or eliminating the biofilm formation could be mainly divided into two major approaches: an active approach of “attacking”, by killing the microbes once they are attached to the material surface; and a passive approach of “defending”, creating resistance to microbial attachment or releasing the attached one. In this dissertation, a dual-functional structure was initially proposed: rechargeable biocidal moieties immobilized at the inner layer, and antifouling moieties serving as a protective layer located on the outside of the surface. With a such unique surface structure, once microorganisms approach the designed surfaces, (i) the antifouling moieties could reduce the non-specific adsorption of the microorganisms and make them difficult to adhere; (ii) any live bacteria attached on the surface could be immediately killed by the incorporated biocidal moieties; (iii) any resulting cell debris and other biofoulants could be easily washed off with mild hydrodynamic force applied; furthermore, (iv) the consumed biocidal activity could be regenerated by either chlorination or photoirradiation. Overall, I designed and successfully developed three types of rechargeable biocidal and antifouling functional materials, which exhibited great potentials in food packaging, water filtration, and medical application areas.Specifically, in this dissertation, chapter 1 briefly introduces processes and mechanisms of microbial biofilm formation, two major strategies responding to avoid and reduce the formation of biofilm, and typical chemicals with rechargeable biocidal or antifouling functions applied in recent years. In chapter 2, a new antibiofilm concept combining both rechargeable antimicrobial and antifouling functions was proposed. An N-halamine precursor, N,N-diallylmelamine (DAM), and a zwitterionic monomer, [2-(methacryloyloxy)ethyl]dimethyl-(3-sulfopropyl)ammonium hydroxide (SBMA), were covalently bonded onto poly(vinyl alcohol-co-ethylene) (PVA-co-PE) and generated a double-layer structure. The outside surface embedding with resisting and releasing functions and the inner layer with regenerable biocidal activities work constructively to limit the biofilm development. In chapter 3, a new synthesized zwitterionic polymer, sulfonated polyethyleneimine (PEI-S), was chemically bonded with an N-halamine grafted PVA-co-PE nanofibrous membrane. The obtained PEI-S@BNF nanofibrous membrane with the super-high specific surface area did effectively magnify the interfacial effect. Two engineering models were constructed to explain the resisting and releasing mechanisms via typical isothermal adsorption and release experiments. Additionally, the final product, PEI-S@BNF nanofibrous membrane, showed great potential to be applied as a water filtration material. In chapter 4, instead of N-halamine, a photo-induced biocide, benzophenonetetracarboxylic dianhydride (BPTCD) was incorporated onto the PVA-co-PE nanofibrous membranes, providing a photo-driven regenerable biocidal function. After combined with antifouling moieties, the obtained SBMA@EVOH also exhibited a desirable antibiofilm effect, which proved the universality of such proposed bifunctional antibiofilm strategy. In chapter 5, a N-halamine-based chlorine rechargeable antimicrobial composite fabric (HCF) was fabricated via an industrial scalable dip-coating method. An imide/amide halamine grafted cotton fabric (DMH-g-cotton) served as a reinforcement component and a reservoir of active chlorine. And an amine halamine polymer (PVA-co-PE-g-DAM) as a coating component could reduce the loss of active chlorine, realizing long-term killing performance. With such a unique combination, the designed HCF could be considered as a potential active food-contact material that could effectively reduce microbial cross-contamination, prolong the food lifetime, decrease food spoilage, and ensure food safety. The final chapter describes all achievements related to the proposed multifunctional double-layer surface structure, which could significantly reduce the biofouling effect via resisting, killing, and releasing pathways, and a practical demonstration of biocidal functional composite fabric applied as a food-contact material.

    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ eScholarship - Unive...arrow_drop_down
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  • image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Authors: Bisschops, Ralph André;
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Vrije Universiteit B...arrow_drop_down
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
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      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Vrije Universiteit B...arrow_drop_down
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
  • Authors: Winand, Véronique; Morato, Nicola; Leonardi, Lino; Trachsler, Richard;

    I testi qui riuniti non hanno una loro autonomia, ma connettono i due principali romanzi del Ciclo di Guiron le Courtois, mastodontico complesso di romanzi francesi in prosa composti all’incirca tra il 1235 e il 1240. Copiato nei secoli e amato da molte generazioni di lettori, tra cui Federico II di Svevia e Ludovico Ariosto (che vi trovò numerosi spunti per l’elaborazione dell’Orlando furioso), il Ciclo di Guiron le Courtois viene pubblicato integralmente per la prima volta a cura del «Gruppo Guiron». Questo volume, che viene a sistemarsi fra quelli dedicati al Roman de Meliadus (I e II) e quelli dedicati al Roman de Guiron (IV e V) usciti negli anni scorsi, pubblica i racconti che hanno riunito i due romanzi nelle diverse forme cicliche, in momenti successivi della tradizione testuale. La funzione di raccordo svolta da questi testi è di fondamentale importanza per l’interpretazione complessiva dell’imponente macchina narrativa guironiana. È possibile intravedere i primi momenti di formazione del ciclo, e seguire nel tempo i diversi modi in cui le principali narrazioni hanno interagito e si sono organizzate in vaste strutture pluritestuali, fra le più ampie e complesse che la letteratura medievale abbia realizzato. La tecnica di giunzione dei testi preesistenti da parte dei redattori delle forme cicliche segue una logica narrativa particolare, in parte diversa rispetto a quella dei romanzi, dal momento che si tratta di creare dei sistemi narrativi di compromesso, che consentano di collegare testi e mondi narrati in origine eterogenei. Il testo critico dei raccordi, costituito sulla base dei relativi stemmi e di una nuova concezione del rapporto tra sostanza testuale e forma linguistica, è accompagnato da un apparato sistematico di varianti, da note di commento e da un glossario. L’Introduzione presenta il funzionamento della macchina ciclica e gli aspetti letterari più salienti di queste narrazioni, oltre a illustrare le principali questioni relative ai manoscritti e alla trasmissione del testo. Gruppo Guiron

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  • Authors: Aires Horta, Martim; Piette, Elie; Woram, Kevin;
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  • Authors: Meunier, André; Bardiau, Marjorie;
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  • Authors: Hiligsmann, Mickael; Reginster, Jean-Yves; Silverman, Stuart;
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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: Brooks, Nathan Charles;

    Power electronics design best configures available electrical devices—transistors, inductors, and capacitors—to realize a theoretical power conversion function in the smallest, lightest, cheapest, and most efficient manner. In particular, hybrid switched-capacitor converters are a contemporary and high-performance class of circuit topology utilizing both inductors and capacitors. To better understand how these converters behave and are realized in practice, this manuscript will explore several contributing design aspects—modeling, passive devices, and practical printed circuit board layout—applied to a particular circuit topology of active research interest.First, the thesis will explore the results of a comprehensive survey of commercial passive components and how their figures-of-merit might be used to inform converter design. The survey explores the capabilities of prominent types of discrete capacitors and inductors. Then this manuscript applies this survey to the design of an aluminum electrolytic capacitor bank on the dc-link of a single-phase power conversion system.Second, this thesis analyzes dynamical modeling for the flying capacitor multilevel (FCML) power converter, a topology with nearly inexhaustible switching state combinations. It presents a simplified derivation and abstraction of a conventional averaged Fourier-derived model for this FCML switching-circuit topology, and it provides extensions to existing work and explores design implications. Next, this manuscript outlines a methodology for deriving a functional, accurate, and computationally efficient discrete-time state-space dynamical model for the FCML converter; this model is validated with results measured from a high-performance hardware prototype.Finally, the thesis investigates the usage of multilevel converters to demonstrate the underlying feasibility of the single-stage buck-type power factor correction (PFC) rectifier. A high-performance multilevel converter prototype is developed with an especial focus on compactness, high efficiency, and low-inductance layout in the switching commutation loops. Then the theoretic input current harmonics, power factor, and total harmonic distortion of the buck PFC are derived and compared to the prevailing regulatory IEC current emission standards.

    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ eScholarship - Unive...arrow_drop_down
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  • image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Authors: Glikin, Neil;

    This work presents the techniques used to create a freely rotating trapped-ion Coulomb crystal and to establish quantum coherent control over this rotational motion. This is done using a highly symmetric surface ion trap with circular trapping electrodes. We derive how a trapped-ion rotor couples to coherent laser light, including the motional transition sideband spectrum and the corresponding coupling strengths. We also show how rotational motion modifies the coupling of the usual trapped-ion vibrational motion to laser light. In our experiments, light which is coupled to the rotor's motion propagates nearly normal to the trap surface, which is thus also sensitive to vibrational motion in this direction. We thus also present the design of and benchmark the performance of a Faraday cage which has successfully protected this motion from harmful electric field noise.A prerequisite to clean, coherent manipulation of the rotational quantum state of our rotor is preparing it in a rapidly rotating state with a small uncertainty in its angular momentum. This rotational state preparation is done with by accelerating a rotating quadrupole field via time-dependent voltages applied directly to the trap electrodes, resulting in rotation frequencies of 100's of kHz with uncertainties within 1 kHz. We show how this procedure allows for creation of superpositions of angular momentum states, and present considerations and measurements pertaining to optimizing this procedure. We find that the coherence of these superpositions is limited by angular momentum diffusion processes induced by coupling to noisy electric field gradients. Careful measurements of these rotor decoherence dynamics demonstrate close agreement with the corresponding theory for the first time.Finally, we present a proposal to use angular momentum superpositions of our trapped ion rotor as an interferometer in which we may exchange the positions of two ions. This experiment would serve as a test of the symmetrization of their mutual quantum state, and would be sensitive to the phase of the exchange operation without requiring the two particles to coincide spatially. We interpret the physical meaning of this exchange phase measurement and present detailed considerations of potential errors.

    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao eScholarship - Unive...arrow_drop_down
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
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      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
  • Authors: Bezas, Marios-Zois; Demonceau, Jean-François; Vayas, Ioannis; Jaspart, Jean-Pierre;

    Angle profiles belong to the most common structural steel shapes used in construction. They exhibit specific features that distinguish them from other types of common sections. This paper presents specific rules for the classification of angle profiles as well as formulas for the design cross-section resistances. The rules are based on theoretical-analytical considerations and are subjected to extensive numerical validation. They are written in Eurocode 3 format so as to allow a direct possible inclusion in forthcoming drafts. They cover all cross-section classes and allow a smooth transition between them.

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  • Authors: Feng, Xiaoxu;
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    Authors: Ma, Yue;

    The frequent outbreaks of foodborne and waterborne diseases have become a serious public health issue, which is related to the presence of microbial biofilms on surfaces of materials. Current research activities aiming at reducing or eliminating the biofilm formation could be mainly divided into two major approaches: an active approach of “attacking”, by killing the microbes once they are attached to the material surface; and a passive approach of “defending”, creating resistance to microbial attachment or releasing the attached one. In this dissertation, a dual-functional structure was initially proposed: rechargeable biocidal moieties immobilized at the inner layer, and antifouling moieties serving as a protective layer located on the outside of the surface. With a such unique surface structure, once microorganisms approach the designed surfaces, (i) the antifouling moieties could reduce the non-specific adsorption of the microorganisms and make them difficult to adhere; (ii) any live bacteria attached on the surface could be immediately killed by the incorporated biocidal moieties; (iii) any resulting cell debris and other biofoulants could be easily washed off with mild hydrodynamic force applied; furthermore, (iv) the consumed biocidal activity could be regenerated by either chlorination or photoirradiation. Overall, I designed and successfully developed three types of rechargeable biocidal and antifouling functional materials, which exhibited great potentials in food packaging, water filtration, and medical application areas.Specifically, in this dissertation, chapter 1 briefly introduces processes and mechanisms of microbial biofilm formation, two major strategies responding to avoid and reduce the formation of biofilm, and typical chemicals with rechargeable biocidal or antifouling functions applied in recent years. In chapter 2, a new antibiofilm concept combining both rechargeable antimicrobial and antifouling functions was proposed. An N-halamine precursor, N,N-diallylmelamine (DAM), and a zwitterionic monomer, [2-(methacryloyloxy)ethyl]dimethyl-(3-sulfopropyl)ammonium hydroxide (SBMA), were covalently bonded onto poly(vinyl alcohol-co-ethylene) (PVA-co-PE) and generated a double-layer structure. The outside surface embedding with resisting and releasing functions and the inner layer with regenerable biocidal activities work constructively to limit the biofilm development. In chapter 3, a new synthesized zwitterionic polymer, sulfonated polyethyleneimine (PEI-S), was chemically bonded with an N-halamine grafted PVA-co-PE nanofibrous membrane. The obtained PEI-S@BNF nanofibrous membrane with the super-high specific surface area did effectively magnify the interfacial effect. Two engineering models were constructed to explain the resisting and releasing mechanisms via typical isothermal adsorption and release experiments. Additionally, the final product, PEI-S@BNF nanofibrous membrane, showed great potential to be applied as a water filtration material. In chapter 4, instead of N-halamine, a photo-induced biocide, benzophenonetetracarboxylic dianhydride (BPTCD) was incorporated onto the PVA-co-PE nanofibrous membranes, providing a photo-driven regenerable biocidal function. After combined with antifouling moieties, the obtained SBMA@EVOH also exhibited a desirable antibiofilm effect, which proved the universality of such proposed bifunctional antibiofilm strategy. In chapter 5, a N-halamine-based chlorine rechargeable antimicrobial composite fabric (HCF) was fabricated via an industrial scalable dip-coating method. An imide/amide halamine grafted cotton fabric (DMH-g-cotton) served as a reinforcement component and a reservoir of active chlorine. And an amine halamine polymer (PVA-co-PE-g-DAM) as a coating component could reduce the loss of active chlorine, realizing long-term killing performance. With such a unique combination, the designed HCF could be considered as a potential active food-contact material that could effectively reduce microbial cross-contamination, prolong the food lifetime, decrease food spoilage, and ensure food safety. The final chapter describes all achievements related to the proposed multifunctional double-layer surface structure, which could significantly reduce the biofouling effect via resisting, killing, and releasing pathways, and a practical demonstration of biocidal functional composite fabric applied as a food-contact material.

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  • image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Authors: Bisschops, Ralph André;
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Vrije Universiteit B...arrow_drop_down
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
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      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Vrije Universiteit B...arrow_drop_down
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
  • Authors: Winand, Véronique; Morato, Nicola; Leonardi, Lino; Trachsler, Richard;

    I testi qui riuniti non hanno una loro autonomia, ma connettono i due principali romanzi del Ciclo di Guiron le Courtois, mastodontico complesso di romanzi francesi in prosa composti all’incirca tra il 1235 e il 1240. Copiato nei secoli e amato da molte generazioni di lettori, tra cui Federico II di Svevia e Ludovico Ariosto (che vi trovò numerosi spunti per l’elaborazione dell’Orlando furioso), il Ciclo di Guiron le Courtois viene pubblicato integralmente per la prima volta a cura del «Gruppo Guiron». Questo volume, che viene a sistemarsi fra quelli dedicati al Roman de Meliadus (I e II) e quelli dedicati al Roman de Guiron (IV e V) usciti negli anni scorsi, pubblica i racconti che hanno riunito i due romanzi nelle diverse forme cicliche, in momenti successivi della tradizione testuale. La funzione di raccordo svolta da questi testi è di fondamentale importanza per l’interpretazione complessiva dell’imponente macchina narrativa guironiana. È possibile intravedere i primi momenti di formazione del ciclo, e seguire nel tempo i diversi modi in cui le principali narrazioni hanno interagito e si sono organizzate in vaste strutture pluritestuali, fra le più ampie e complesse che la letteratura medievale abbia realizzato. La tecnica di giunzione dei testi preesistenti da parte dei redattori delle forme cicliche segue una logica narrativa particolare, in parte diversa rispetto a quella dei romanzi, dal momento che si tratta di creare dei sistemi narrativi di compromesso, che consentano di collegare testi e mondi narrati in origine eterogenei. Il testo critico dei raccordi, costituito sulla base dei relativi stemmi e di una nuova concezione del rapporto tra sostanza testuale e forma linguistica, è accompagnato da un apparato sistematico di varianti, da note di commento e da un glossario. L’Introduzione presenta il funzionamento della macchina ciclica e gli aspetti letterari più salienti di queste narrazioni, oltre a illustrare le principali questioni relative ai manoscritti e alla trasmissione del testo. Gruppo Guiron

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