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A preliminary simulation study of influence of backsplash on the plastic scintillator detector design in HERD experiment

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Radiation Detection Technology and Methods 2021年第3期5卷 332-338页

作者： Peng Hu Zhi-gang Wang Fabio Gargano Francesca Alemanno corrado altomare Tian-wei Bao Yong-wei Dong Valerio Formato Dimitrios Kyratzis Nicola Mori Lorenzo Pacini Zheng Quan Davide Serini Jun-jing Wang Rui-jie Wang Ming Xu Bo-bing Wu Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China University of Chinese Academy of Sciences Beijing 100049China Istituto Nazionale di Fisica Nucleare(INFN) Sezione di Bari70126 BariItaly Gran Sasso Science Institute(GSSI) 67100 L’AquilaItaly Istituto Nazionale di Fisica Nucleare(INFN) Laboratori Nazionali del Gran Sasso67100 L’AquilaItaly Dipartimento Interateneo di Fisica dell’Universitàe del Politecnico di Bari 70125 BariItaly Istituto Nazionale di Fisica Nucleare(INFN) Sezione di Roma Tor Vergata00133 RomeItaly Istituto Nazionale di Fisica Nucleare(INFN) Sezione di Firenze50019 Sesto FiorentinoItaly

Background The plastic scintillator detector(PSD)is one of the detectors in the high energy cosmic radiation detection(HERD)facility,which is designed for gamma-ray detection and a redundant charge *** will lead to a decrease in PSD’s performance of gamma-ray detection and charge measurement,which should be carefully *** Two preliminary segmentation schemes of the PSD and two veto strategies have been proposed to suppress the backsplash *** this paper,we focus on the influence of the backsplash caused by gamma *** gamma-ray trigger efficiency and identification efficiency were studied in the case of different cell sizes and veto strategies,which can provide guidance on the PSD *** A Monte Carlo simulation based on Geant4 has been *** simplify the simulation,the PSD is segmented into 1 cm3 cubes which can be easily aggregated into cells with different sizes during *** and conclusion Side_Veto can be used as a baseline design of veto strategy,whereas Smart_Veto can be selected as an upgraded *** the PSD bar cell with a width of less than 11 cm and the PSD tile cell with a width of less than 20 cm can achieve a sufficiently high gamma-ray trigger efficiency(>80%),which realizes the primary goal of the ***,both the PSD bar cell with a width of less than 3 cm and the PSD tile cell with a width of less than 20 cm can ensure a sufficiently high gamma-ray identification efficiency(>80%)for photons up to 800 GeV.

关键词： Plastic scintillator detector Gamma-ray detection Backsplash Veto

TWENTY-EIGHT YEARS WITH “HYPERBOLIC CONSERVATION LAWS WITH RELAXATION”

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Acta Mathematica Scientia 2015年第4期35卷 807-831页

作者： corrado MASCIA Dipartimento di Matematica "G. Castelnuovo" Sapienza Università di Roma P.le Aldo Moro

This paper is a review on the results inspired by the publication “Hyperbolic conservation laws with relaxation” by Tai-Ping Liu [1], with emphasis on the topic of nonlinear waves （specifically, rarefaction and shock waves）. The aim is twofold： firstly, to report in details the impact of the article on the subsequent research in the area; secondly, to detect research trends which merit attention in the （near） future.

关键词： conservation laws relaxation nonlinear waves stability

Algorithms to Compute the Largest Invariant Set Contained in an Algebraic Set for Continuous-Time and Discrete-Time Nonlinear Systems

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IEEE/CAA Journal of Automatica Sinica 2020年第1期7卷 57-69页

作者： Laura Menini corrado Possieri Antonio Tornambè Dipartimento di Ingegneria Industriale Universitàdi Roma Tor VergataRoma 00133Italy Istituto di Analisi dei Sistemi ed Informatica“A.Ruberti ”Consiglio Nazionale delle Ricerche(IASI-CNR)Roma 00185Italy Dipartimento di Ingegneria Civile e Ingegneria Informatica Universitàdi Roma Tor VergataRoma 00133Italy

In this paper, some computational tools are proposed to determine the largest invariant set, with respect to either a continuous-time or a discrete-time system, that is contained in an algebraic set. In particular, it is shown that if the vector field governing the dynamics of the system is polynomial and the considered analytic set is a variety, then algorithms from algebraic geometry can be used to solve the considered problem. Examples of applications of the method(spanning from the characterization of the stability to the computation of the zero dynamics) are given all throughout the paper.

关键词： Asymptotic stability discrete-time systems invariance nonlinear systems

On “Over-Sized” High-Gain Practical Observers for Nonlinear Systems

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IEEE/CAA Journal of Automatica Sinica 2018年第3期5卷 691-698页

作者： Daniele Carnevale corrado Possieri Antonio Tornambè Dipartimento di Ingegneria Civile e Ingegneria Informatica Universita di Roma Tor Vergata

In this paper,it is shown that the performances of a class of high-gain practical observers can be improved by estimating the time derivatives of the output up to an order that is greater than the dimension of the system, which is assumed to be in observability form and, possibly, time-varying. Such an improvement is achieved without increasing the gain of the observers, thus allowing their use in a wide variety of control and identification applications.

关键词： Filtering properties nonlinear systems observability observer design

Tidal drag and westward drift of the lithosphere

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Geoscience Frontiers 2023年第6期14卷 102-116页

作者： Vincenzo Nesi Oscar Bruno Davide Zaccagnino corrado Mascia Carlo Doglioni Dipartimento di Matematica Guido Castelnuovo Piazzale Aldo Moro5Roma 00185Italy Istituto Nazionale di Geofisica e Vulcanologia Via di Vigna Murata605Roma 00143Italy Computing and Mathematical Sciences Department Caltech1200 E.California Blvd.MC 305-16Pasadena 91125CAUSA Dipartimento di Scienze della Terra Piazzale Aldo Moro5Roma 00185Italy

Tidal forces are generally neglected in the discussion about the mechanisms driving plate tectonics despite a worldwide geodynamic asymmetry also observed at subduction and rift *** tidal drag could theoretically explain the westerly shift of the lithosphere relative to the underlying ***,viscosity in the asthenosphere is apparently too high to allow mechanical decoupling produced by tidal ***,we propose a model for global scale geodynamics accompanied by numerical simulations of the tidal interaction of the Earth with the Moon and the *** provide for the first time a theoretical proof that the tidal drag can produce a westerly motion of the lithosphere,also compatible with the slowing of the Earth’s rotational *** results suggest a westerly rotation of the lithosphere with a lower bound ofω≈(0.1-0.2)°/Myr in the presence of a basal effective shear viscosityη≈10^(16)Pa-s,but it may rise toω>1°/Myr with a viscosity ofη≈≤3×10^(14)Pa-s within the Low-Velocity Zone(LVZ)atop the *** faster velocity would be more compatible with the mainstream of plate motion and the global asymmetry at plate *** on these computations,we suggest that the super-adiabatic asthenosphere,being vigorously convecting,may further reduce the viscous coupling within the LVZ Therefore,the combination of solid Earth tides,ultra-low viscosity LVZ and asthenospheric polarized small-scale convection may mechanically satisfy the large-scale decoupling of the lithosphere relative to the underlying *** plate motions are explained because of lateral viscosity heterogeneities at the base of the lithosphere,which determine variable lithosphere-asthenosphere decoupling and plate interactions,hence plate tectonics.

关键词： Tidal drag Plate motions Polarized plate tectonics Lithosphere-asthenosphere interaction

NKG2A and COVID-19: another brick in the wall

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Cellular & Molecular Immunology 2020年第6期17卷 672-674页

作者： Luca Antonioli Matteo Fornai Carolina Pellegrini corrado Blandizzi Department of Clinical and Experimental Medicine University of Pisa56126 PisaItaly Department of Pharmacy University of Pisa56126 PisaItaly

Coronavirus disease 2019(COVID-19)is a viral infection caused by severe acute respiratory syndrome coronavirus 2(SARS-CoV-2;formerly designated as 2019-nCoV),a novel betacoronavirus firstly identified during a burst of respiratory illness cases in Wuhan City,Hubei Province,China.1 Unfortunately,within a few weeks,the SARS-COV2 virus started to spread globally,producing a pandemic of an extremely spreadable and potentially fatal disease,becoming a cause of great concern for global public health.1 Despite the current estimates of COVID-19 case fatality rate suggest that this coronavirus is less deadly than other pathogens driving other large-scale outbreaks,such as SARS,Middle East respiratory syndrome,or Ebola,the main concern is that this infection is able to spread more easily than other diseases,including seasonal influenza.

关键词： becoming driving globally

Fetal Bradyarrhythmias:Etiopathogenesis,Diagnosis and Treatment:Between Literature Review and Experience of a Tertiary Center

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Congenital Heart Disease 2021年第4期16卷 309-331页

作者： Elio Caruso Silvia Farruggio Salvatore Agati corrado Di Mambro Mediterranean Pediatric Cardiology Center“Bambino Gesù”San Vincenzo Hospital Contrada SirinaTaormina98039Italy

Fetal arrhythmias reach up around 10%of the total third-level perinatal cardiology *** bradycardia is defined as a baseline fetal heart rate(FHR)of less than 110 bpm sustained for at least 10 *** overall incidence of malignant fetal bradyarrhythmias,such as complete atrioventricular block(AVB)and channellopathies,is relatively rare,1:5000 pregnancies,but represents a serious emergency for the gynecologist,neonatologists,and pediatric *** complete AVB is strongly associated with maternal connective tissue disease,but it can be also associated with congenital heart disease and usually with a poorer prognosis with high risk of fetal hydrops and ***,the treatment of severe fetal bradyarrhythmias is principally pharmacological and aims to increase the FHR,besides an early resolution of underlying causes,when possible,and a promptly management of fetal heart *** electrostimulation nowadays is an experimental pioneering method,reserved for limited selected cases.

关键词： Fetal arrhythmias hydrops bradyarrhythmia atrioventricular block

Identification of BRAF V600E mutation in odontogenic tumors by high-performance MALDI-TOF analysis

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International Journal of Oral Science 2022年第2期14卷 212-219页

作者： Lucrezia Togni Antonio Zizzi Roberta Mazzucchelli Andrea Santarelli corrado Rubini Marco Mascitti Department of Clinical Specialistic and Dental Sciences Marche Polytechnic Universityvia Tronto 10AnconaItaly Department of Biomedical Sciences and Public Health Marche Polytechnic Universityvia Tronto 10AnconaItaly Dentistry Clinic National Institute of Health and Science of AgingIRCCS INRCAvia Tronto 10AnconaItaly

Odontogenic tumors are rare lesions with unknown *** of them are benign,but local aggressiveness,infiltrative potential,and high recurrence rate characterize some *** MAP-kinase pathway activation can represent a primary critical event in odontogenic ***,the BRAF V600E mutation has been involved in 80%–90%of ameloblastic lesions,offering a biological rationale for developing new targeted *** study aims to evaluate the BRAF V600E mutation in odontogenic lesions,comparing three different detection methods and focusing on the Sequenom MassARRAY System.81 surgical samples of odontogenic lesions were subjected to immunohistochemical analysis,Sanger Sequencing,and Matrix-Assisted Laser Desorption/Ionization-Time of Flight mass spectrometry(Sequenom).The BRAF V600E mutation was revealed only in ameloblastoma ***,the presence of BRAF V600E was significantly associated with the mandibular site(ρ=0.627;P value<0.001)and the unicystic histotype(ρ=0.299,P value<0.001).However,any significant difference of 10-years disease-free survival time was not ***,Sequenom showed to be a 100%sensitive and 98.1%specific,suggesting its high-performance diagnostic *** results suggest the MAP-kinase pathway could contribute to ameloblastic ***,they could indicate the anatomical specificity of the driving mutations of mandibular ameloblastomas,providing a biological rational for developing new targeted ***,the high diagnostic accuracy of Sequenom was confirmed.

关键词： V600E BRAF specificity

Advances in microsurgery for upper and lower extremity reconstruction and limb preservation

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Plastic and Aesthetic Research 2019年第10期6卷 1-14页

作者： Alberto Bolletta Rubino corrado Hung-Chi Chen Department of Plastic Surgery China Medical University HospitalTaichung 404Taiwan Department of Medical Surgical and Experimental SciencesUHT of SassariPlastic Surgery UnitUniversity of SassariSassari 07100Italy

In the recent decades,microsurgical reconstruction has evolved from simple survival of the affected extremity to the improvement of functional and aesthetic *** review retraces the main contributions to the advances of microsurgery for reconstruction of upper and lower extremities and limb *** the upper extremity,it is important to restore fine motility,together with allowing prompt *** the lower limb,care must be taken in the reconstruction of weight-bearing areas and the aim must be proper ambulation and shoe *** perforator flaps can be considered for medium size *** provide thin coverage and can be performed in short operating *** use,though,is often limited by tissue *** flaps allow to overcome this problem and,thanks to the recent development in the study of perforator vessels,the microsurgeon can choose the flap with the most appropriate *** flaps can accomplish simultaneous reconstruction of different tissue components and large bone defects often require vascularized bone *** dealing with limb preservation it is very important to consider residual *** muscle transfer and targeted muscle re-innervation can be performed in these cases.A useful reconstructive tool in severely damaged limbs with limited blood supply is the use of cross-leg free *** conclusion,extremity reconstruction and limb preservation are reaching new heights thanks,not only to the work of plastic surgeons,but also to the new developments in other fields of study such as oncology,traumatology,radiology and medical engineering.

关键词： Extremity reconstruction functional and aesthetic outcome limb salvage perforator flaps free flaps weight-bearing areas cross-leg flaps