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Dust properties across the CO snowline in the HD 163296 disk from ALMA and VLA observations
Guidi, G.,Tazzari, M.,Testi, L.,de Gregorio-Monsalvo, I.,Chandler, C. J.,Pé,rez, L.,Isella, A.,Natta, A.,Ortolani, S.,Henning, Th.,Corder, S.,Linz, H.,Andrews, S.,Wilner, D.,Ricci, L.,Carpenter, Springer-Verlag 2016 Astronomy and astrophysics Vol.588 No.-
Giuseppe Guidi,Salvatore D"Arco,Jon Are Suul,Ryosuke Iso,Jun-Ichi Itoh 전력전자학회 2019 ICPE(ISPE)논문집 Vol.2019 No.5
This paper presents a system configuration for transformer-less grid integration of large-scale charging infrastructures for electric vehicles (EVs) with wireless inductive charging. The proposed configuration relies on a Modular Multilevel Converter (MMC) topology as the grid interface of the charging infrastructure, where one wireless EV charger can be supplied from each individual module. This system topology could provide significant reduction in footprint and complexity of cable installations by allowing for transformer-less connection and direct integration with the medium voltage distribution grid. The requirements for power flow management when charging EVs that are unevenly distributed within the infrastructure are evaluated analytically. On this basis, a control strategy is presented for ensuring horizontal and vertical energy balancing among the MMC arms, and voltage balancing among the modules of each arm. Time-domain simulations demonstrate how the system can operate with severe unbalances resulting from different number and location of charging EVs.
Driving Performance Experimental Analysis of Series Chopper Based EV Power Train
Kawamura, Atsuo,Guidi, Giuseppe,Watanabe, Yuki,Tsuruta, Yukinori,Motoi, Naoki,Kim, Tae-Woong The Korean Institute of Power Electronics 2012 JOURNAL OF POWER ELECTRONICS Vol.12 No.6
In this paper, the series chopper based power train for electric vehicle is proposed for aiming the increase of one battery charge driving distance. Both the motor test bench based experiments and the chassis dynamo based experiments are tested and then analyzed for EV driving performance that the proposed power train with SAZZ chopper and Quasi-PAM control scheme is compared with or without the series chopper. It is confirmed through two kinds of experimental analyses that the series chopper power train for EV can be useful to extend the driving distance if the high efficiency and the low weight of chopper are satisfied.
Driving Performance Experimental Analysis of Series Chopper Based EV Power Train
Atsuo Kawamura,Giuseppe Guidi,Yuki Watanabe,Yukinori Tsuruta,Naoki Motoi,Tae-Woong Kim 전력전자학회 2012 JOURNAL OF POWER ELECTRONICS Vol.12 No.6
In this paper, the series chopper based power train for electric vehicle is proposed for aiming the increase of one battery charge driving distance. Both the motor test bench based experiments and the chassis dynamo based experiments are tested and then analyzed for EV driving performance that the proposed power train with SAZZ chopper and Quasi-PAM control scheme is compared with or without the series chopper. It is confirmed through two kinds of experimental analyses that the series chopper power train for EV can be useful to extend the driving distance if the high efficiency and the low weight of chopper are satisfied.
Francesca Perondi,Claudio Brovida,Gianila Ceccherini,Grazia Guidi,Ilaria Lippi 대한수의학회 2018 Journal of Veterinary Science Vol.19 No.3
Three dogs were evaluated for severe hyperproteinemia and hyperglobulinemia secondary to Leishmania infantum. Double filtration plasmapheresis (DFPP) was performed in two dogs at days 1, 2, and 6 after presentation. The third dog received DFPP at days 1 and 3 after presentation and eleven hemodialysis treatments. Significant reduction in serum total protein (p < 0.0001), alpha-1 (p = 0.023), alpha-2 (p = 0.018), gamma globulins (p = 0.0105), and a significant increase in albumin/globulin ratio (p = 0.0018) were found. DFPP may be a promising therapeutic technique for rapid resolution of signs of hyperproteinemia in dogs affected by L. infantum.
Zeinab Karami,Jiayu Zhou,Giuseppe Guidi,Jon Are Suul 전력전자학회 2023 ICPE(ISPE)논문집 Vol.2023 No.-
This paper presents a finite-control-set model predictive control (FCS-MPC) strategy for achieving power control in inductive power transfer (IPT) -based electric vehicle (EV) charging systems. The proposed control method is applied to a series-series-compensated IPT system when charging a battery appearing as a constant voltage load (CVL). It has been previously shown that IPT systems with CVL can exhibit large current/power oscillations due to the low damping of a critical mode that can be excited by pulse skipping modulation techniques such as pulse density modulation (PDM). By predicting the next optimal switching states and the input power, the proposed control method will suppress the oscillations caused by pulse skipping operation, while ensuring a fast dynamic response and zero voltage switching (ZVS) operation. The effectiveness and performance of the proposed control method in comparison with a PI-based PDM method are verified by the simulation results.
Catalfo, Alfio,Bracchitta, Giuseppina,De Guidi, Guido Korean Society of Photoscience 2009 Photochemical & photobiological sciences Vol.8 No.10
The aromatic amino acid tryptophan is the most susceptible protein residue involved in various photosensitized adverse effects. Of these processes, the tryptophan photosensitization induced by methylene blue has been well studied. A predominant type II photosensitizing activity, mediated by singlet oxygen, has been already demonstrated on various models. The purpose of this study is to compare this photosensitization system with that induced by naproxen, belonging to the class of non-steroidal anti-inflammatory drugs. For this compound, a type I (radical) and type II (singlet oxygen) cooperative mechanism of photoinduced damage was previously proposed. This study represents an example of testing drugs on the simple experimental model of amino acid residues in proteins. Particular emphasis is dedicated to modifications caused by the formation of drug photomediated toxic species, such as reactive oxygen species (ROS). This is achieved following the kinetics of photodegradation of the sensitizers and of the amino acid, as well as the formation of their photoproducts and by evaluation of quantum yields of the various processes. Tryptophan photoproducts represent biomarkers of oxidative damage indicative for protein photooxidation and for the molecular mechanism of photosensitization; some of these have been identified for the first time as UVA photosensitization products. The pattern of Trp photoproducts formed by the two compounds differs and is specific for each type of sensitization process. These observations support extending the investigation to systems of increasing molecular complexity, that is Trp in isolated proteins and in cells and represent an effort to provide a simplified rationale of the complex picture coming out from literature data and our experimental results.
Four quadrant SAZZ-1 Chopper for EV and HEV power train
Yukinori Tsuruta,Martin Pavlovsky,Giuseppe Guidi,Atsuo Kawamura 전력전자학회 2011 ICPE(ISPE)논문집 Vol.2011 No.5
This paper discusses four quadrant SAZZ-1 chopper (Snubber Assisted Zero Voltage and Zero Current Switching) and its direct application to a EV (Electric Vehicle) power train. The performance of SAZZ-1 chopper is demonstrated on several prototypes. The first prototype is a 25 ㎾, 50 ㎑ SAZZ-1 with efficiency in the range between 96 % and 97 %. This was further improved by a redesigned SAZZ-1 chopper which reached even higher efficiency in the range of 97 % to over 98 %. Further on, a new mid-power 30 ㎾ water cooled SAZZ-1 chopper was constructed for KAST (Kanagawa Academy of Science and Technology) advanced EV project. This prototype was used and fully tested in an EV prototype named KAST-EVKana. As discussed, SAZZ-1 topology proved to be well performing in direct EV application.