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Typical and atypical COVID-19 computed tomography findings

World Journal of Clinical Cases 2020年第15期8卷 3177-3187页

作者： Damiano Caruso Tiziano Polidori Gisella Guido Matteo Nicolai Benedetta Bracci Antonio Cremona MartaZerunian Michela Polici Francesco Pucciarelli Carlotta Rucci Chiara De Dominicis marco di girolamo Giuseppe Argento Daniela Sergi Andrea Laghi Department of Surgical and Medical Sciences and Translational Medicine “Sapienza”-University of RomeSant'Andrea University HospitalAOU Sant’AndreaRome 00189Italy

In December 2019 a novel coronavirus,named severe acute respiratory syndrome coronavirus 2 was identified and the disease associated was named coronavirus disease 2019(COVID-19).Fever,cough,myalgia,fatigue associated to dyspnea represent most common clinical symptoms of the *** reference standard for diagnosis of severe acute respiratory syndrome coronavirus 2 infection is real time reverse-transcription polymerase chain reaction test applied on respiratory tract *** of lower specificity,chest computed tomography(CT),as reported in manifold scientific studies,showed high sensitivity,therefore it may help in the early detection,management and follow-up of COVID-19 *** affected by COVID-19 pneumonia usually showed on chest CT some typical features,such as:Bilateral ground glass opacities characterized by multilobe involvement with posterior and peripheral distribution;parenchymal consolidations with or without air bronchogram;interlobular septal thickening;crazy paving pattern,represented by interlobular and intralobular septal thickening surrounded by ground-glass opacities;subsegmental pulmonary vessels enlargement(>3 mm).Halo sign,reversed halo sign,cavitation and pleural or pericardial effusion represent some of atypical findings of COVID-19 *** the other hand lymphadenopathy’s and bronchiectasis’frequency is unclear,indeed conflicting data emerged in *** play a key role in recognition of high suspicious findings of COVID-19 on chest CT,both typical and atypical ***,the aim of this review is to illustrate typical and atypical CT findings of COVID-19.

关键词： SARS-CoV-2 COVID-19 Chest computed tomography Interstitial pneumonia Ground-glass opacities

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Depth Sensing Indentation of Oxidized Plasma Sprayed CoNiCrAlY Coatings

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Soft Nanoscience Letters 2011年第2期1卷 51-53页

作者： marco Alfano Giovanni di girolamo Leonardo Pagnotta Jurgita Zekonyte Robert J. K. Wood University of Calabria University of Southampton

The aim of the present work is to analyze the evolution of microstructural and mechanical properties of Air Plasma Sprayed (APS) CoNiCrAlY coatings after early stage high-temperature oxidation. Phase analysis and oxide scale characterization were performed by using X-Ray diffraction (XRD). The microstructural features of CoNiCrAlY coat- ings were analyzed by Scanning Electron Microscopy (SEM), while Nanoindentation (NI) technique was employed to study the evolution of the mechanical properties.

关键词： Air Plasma Spraying Nanoindentation Bond Coat

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Depth Sensing Indentation of Oxidized Plasma Sprayed CoNiCrAlY Coatings

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Soft Nanoscience Letters（软纳米科学报） 2011年第2期

作者： marco Alfano Giovanni di girolamo Leonardo Pagnotta Jurgita Zekonyte Robert J. K. Wood

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