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A Low Mach Number IMEX Flux Splitting for the Level Set Ghost Fluid Method

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Communications on Applied Mathematics and Computation 2023年第2期5卷 722-750页

作者： Jonas Zeifang andrea Beck Faculty of Sciences Hasselt UniversityAgoralaan Gebouw DBE-3590 DiepenbeekBelgium Institute of Aerodynamics and Gas Dynamics University of StuttgartPfaffenwaldring 2170569 StuttgartGermany Laboratory of Fluid Dynamics and Technical Flows Otto von Guericke University MagdeburgUniversitatsplatz 239106 MagdeburgGermany

Considering droplet phenomena at low Mach numbers,large differences in the magnitude of the occurring characteristic waves are *** acoustic phenomena often play a minor role in such applications,classical explicit schemes which resolve these waves suffer from a very restrictive timestep *** this work,a novel scheme based on a specific level set ghost fluid method and an implicit-explicit(IMEX)flux splitting is proposed to overcome this timestep restriction.A fully implicit narrow band around the sharp phase interface is combined with a splitting of the convective and acoustic phenomena away from the *** this part of the domain,the IMEX Runge-Kutta time discretization and the high order discontinuous Galerkin spectral element method are applied to achieve high accuracies in the bulk *** is shown that for low Mach numbers a significant gain in computational time can be achieved compared to a fully explicit ***-tions to typical droplet dynamic phenomena validate the proposed method and illustrate its capabilities.

关键词： IMEX flux splitting Level set method Ghost fluid method Low Mach number flows

Fruit ripeness classification:A survey

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Artificial Intelligence in Agriculture 2023年第1期7卷 44-57页

作者： Matteo Rizzo Matteo Marcuzzo Alessandro Zangari andrea Gasparetto andrea Albarelli Ca’Foscari Department of Environmental Sciences Informatics and StatisticsVia Torino 155Mestre(VE)30172Italy Ca’Foscari Department of Management Cannaregio 873Fondamenta San GiobbeVenice 30121Italy

Fruit is a key crop in worldwide agriculture feeding millions of *** standard supply chain of fruit products involves quality checks to guarantee freshness,taste,and,most of all,*** important factor that determines fruit quality is its stage of *** is usually manually classified by field experts,making it a labor-intensive and error-prone ***,there is an arising need for automation in fruit ripeness *** automatic methods have been proposed that employ a variety of feature descriptors for the food item to be *** learning and deep learning techniques dominate the top-performing ***,deep learning can operate on raw data and thus relieve the users from having to compute complex engineered features,which are often *** this survey,we review the latest methods proposed in the literature to automatize fruit ripeness classification,highlighting the most common feature descriptors they operate on.

关键词： Fruit ripeness classification Machine learning Deep learning

Response to Commentary by Dr. Matthew J. Clarkson on

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Journal of Sport and Health Science 2024年第5期13卷 670-671页

作者： Hugo de Luca Corrêa Lysleine Alves Deus Dahan da Cunha Nascimento Nicholas Rolnick Rodrigo Vanerson Passos Neves andrea Lucena Reis Thais Branquinho de Araújo Carmen Tzanno-Martins Fernanda Silveira Tavares Luiz Sinésio Silva Neto Cláudio Avelino Rodrigues Santos Paolo Lucas Rodrigues-Silva Fernando Honorato Souza Vitória Marra da Motta Vilalva Mestrinho Rafael Lavarini dos Santos Rosangela Vieira Andrade Jonato Prestes Thiago dos Santos Rosa Post-graduate Program of Physical Education Catholic University of BrasıliaBrasılia 71966-700Brazil The Human Performance Mechanic Lehman CollegeNew YorkNY 10011USA Clinical Group Home Dialysis Center and RenalClass Sao Paulo 01239-040Brazil Department of Medicine Catholic University of BrasıliaBrasılia 71966-700Brazil Faculty of Medicine Federal University of TocantinsTocantins 77001-090Brazil Embrapa Genetic Resources and Biotechnology Brasılia 70770-917Brazil g Graduate Program of Genomic Sciences and Biotechnology Brasılia 71966-700Brazil

Dear editor:We sincerely thank Matthew *** for his insightful commentary1 on our recent publication in the Journal of Sport and Health Science.2 Clarkson's pioneering work in the development and application of blood flow restriction (BFR) exercise protocols has undeniably laid the groundwork for subsequent investigations in this field,including our own.(3-6)His commentary not only highlights the relevance and timeliness of our study but also offers valuable perspectives on refining safety considerations for intradialytic BFR exercise among hemodialysis patients.

关键词： patients application flow

Peripancreatic paraganglioma:Lesson from a round table

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World Journal of Gastroenterology 2022年第21期28卷 2396-2402页

作者： Federica Petrelli Geri Fratini andrea Sbrozzi-Vanni andrea Giusti Raffele Manta Claudio Vignali Gabriella Nesi andrea Amorosi andrea Cavazzana Marco Arganini Maria Raffaella Ambrosio Pathology Unit Azienda Sanitaria Toscana Nord OvestPisa 56121Italy Surgery Unit Azienda Sanitaria Toscana Nord OvestPisa 56121Italy Endoscopic Unit Azienda Sanitaria Toscana Nord OvestPisa 56121Italy Endoscopic Unit Santa Maria Misericordia HospitalPerugia 06122Italy Interventional Radiology Unit Azienda Sanitaria Toscana Nord OvestPisa 56121Italy Department of Health Sciences University of FlorenceFlorence 50139Italy Pathology Unit UniversitàMagna GraeciaCatanzaro 88100Italy

We described the case of a peripancreatic paraganglioma(PGL)misdiagnosed as pancreatic *** exploration revealed an unremarkable pancreas and a large well-defined cystic mass originating at the mesocolon *** enucleation of the mass was performed,preserving the pancreatic ***,a diagnosis of PGL was ***,two previously unreported mutations,one affecting the KDR gene in exon 7 and another on the JAK3 gene in exon 4 were *** mutations are known to be *** and cytologic findings were blindly reviewed by an expert panel of clinicians,radiologists,and pathologists to identify possible causes of the *** major issue was lack of evidence of a cleavage plane from the pancreas at imaging,which prompted radiologists to establish an intraparenchymal *** blinded revision shifted the diagnosis towards an extrapancreatic lesion,as the pancreatic parenchyma showed no structural alterations and no dislocation of the Wirsung *** post,the identified biases were the emergency setting of the radiologic examination and the very thin mesocolon sheet,which hindered clear definition of the lesion *** endoscopic ultrasonography diagnosis was confirmed,emphasizing the intrinsic limit of this technique in detecting large ***,pathologic review favored a diagnosis of PGL due to the morphological features and immonohistochemical *** months after tumor excision,the patient is asymptomatic with no disease relapse evident by either radiology or laboratory *** report strongly highlights the difficulties in rendering an accurate preoperative diagnosis of PGL.

关键词： Peripancreatic paraganglioma Pancreatic neuroendocrine tumor Solid pseudopapillary neoplasm S100 Succinate dehydrogenase subunit B gene and expression Fine needle biopsy

Beyond the SDG 15.3.1 Good Practice Guidance 1.0 using the Google Earth Engine platform: developing a self-adjusting algorithm to detect significant changes in water use efficiency and net primary production

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Big Earth Data 2023年第1期7卷 59-80页

作者： andrea Markos Neil Sims Gregory Giuliani Foundation for the Conservation of the Chiquitano Forest Santa CruzBolivia Bolivian National Academy of Sciences La PazBolivia Centre for Earth Observation Space&AstronomyCSIROClaytonAustralia GEO LDN Initiative Institute for Environmental Sciences EnviroSPACE LabUniversity of GenevaGenevaSwitzerland Institute for Environmental Sciences GRID-GenevaUniversity of GenevaGenevaSwitzerland

Monitoring changes in Annual Net Primary Productivity(ANPP)is required for reporting on UN Sustainable Development Goal(SDG)Indicator 15.3.1:the proportion of land that is degraded over the total land *** time-series observations of ANPP to derive Water Use Efficiency(WUE;a measure of ANPP per unit of evapotranspiration)can minimize the influence of climate factors on ANPP observations and highlight the influence of non-climatic drivers of degradation such as land use *** the ANPP and WUE time series may be useful for identifying the primary drivers of land degradation,which could be used to support the Land Degradation Neutrality objectives of the UN Convention to Combat Desertification(UNCCD).This paper presents an algorithm for the Google Earth Engine(freely and openly available upon request-http://***/10.5281/zenodo.4429773)to calculate and compare ANPP and WUE time series for Santa Cruz,Bolivia,which has recently experienced an intensification in its land *** code builds on the Good Practice Guidance document(ver-sion 1)for monitoring SDG Indicator *** use the MODIS 16-day average,250 m resolution to demonstrate that the Enhanced Vegetation Index(EVI)responds faster to changes in water avail-ability than the Normalized Difference Vegetation Index(NDVI).We also consider the relationships between ANPP and *** and concordant trends may highlight good agricultural practices or increased resilience in ecosystem structure and productivity when they are positive or reducing resilience and functional integrity if *** sign and significance of the correlation between ANPP and WUE may also diverge over *** further analysis,it may be possible to interpret this relationship in terms of the drivers of change in plant productivity and ecosystem resilience.

关键词： Land degradation land productivity water use efficiency Google Earth Engine MODIS Good Practice Guidance SDG 15.3.1

Sharing the post-earthquake situation for emergency response management in transborder areas: The e-Atlas tool

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Journal of Safety Science and Resilience 2022年第1期3卷 72-86页

作者： Stefano Grimaz Petra Malisan andrea Pividori SPRINT-Lab Polytechnic Department of Engineering and ArchitectureUniversity of Udine33100UdineItaly

Usually,the response after a disastrous event requires decision-makers in emergency operative rooms to quickly outline and understand the current post-event situation,for planning and defining strategies for a contextualized ***,in many cases,disastrous events affect cross-border territories and/or involve multiple orga-nizations in responding to the demand generated by the *** cases require a harmonized and coordinated response by all the institutions/subjects involved in emergency *** address this challenge,this pa-per proposes the e-Atlas(emergency atlas)tool for showing and sharing information that embraces a response management perspective to explicitly support decision-makers in managing the criticalities of a post-earthquake *** e-Atlas has been designed and tested to:i)acquire sensible information for allowing decision-makers to understand in almost real-time the post-earthquake situational picture,and ii)share the representation of the situational picture among different users,allowing each of them to use it according to its specific *** of the tool are illustrated,to show how it is used in a transborder context in the North-East area of Italy.

关键词： Emergency response management GIS Seismic emergency Decision-making support e-Atlas

Assimilation of NDVI data in a land surface-Vegetation model for leaf area index predictions in a tree-grass ecosystem

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International Journal of Digital Earth 2023年第1期16卷 3810-3837页

作者： Nicola Montaldo andrea Gaspa Roberto Corona Dipartimento di Ingegneria civile ambientale e architetturaUniversita di CagliariCagliariItaly

Periodic observations of vegetation index,such as the normalized difference vegetation index(NDVI),can be used for data assimilation in heterogenous ***,the new Sentinel 2 Multispectral instrument and Landsat 8 Operational Land Imager sensor data are available at such high temporal and spatial resolutions that can be used to detect the patches of the main vegetation components(grass and trees)of heterogenous ecosystems,and capture their *** demonstrate the possibility to merge grass and tree NDVI observations and models,to optimally provide robust predictions of grass and tree leaf area *** proposed assimilation approach assimilates NDVI data through the Ensemble Kalman filter(EnKF)and dynamically calibrates a key vegetation dynamic model parameter,the maintenance respiration coeffcient(ma).In the presence of large bias of the grass and tree ma base values,only the use of the proposed assimilation approach removes the large bias in the biomass balance,dynamically calibrating maintenance respiration coefficients,and corrects the *** performance of a land surface-vegetation model was improved by assimilating observations of *** effective impact of the proposed assimilation approach on the evapotranspiration and CO_(2) uptake predictions in the heterogenous ecosystem is also demonstrated.

关键词： Data assimilation leaf area index heterogenous ecosystem vegetation dynamic model Landsat 8 Sentinel 2

Preparation of coemissive luminescent nanoparticles in continuous-flow microreactors for efficient light-harvesting systems

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Aggregate 2022年第6期3卷 3-4页

作者： andrea Pucci Department of Chemistry and Industrial Chemistry University of PisaPisaItaly

To address the energy challenges,scientists have designed various artificial light-harvesting systems inspired by ***,for light-harvesting systems,an energytransfer efficiency close to 100%with an antenna effect greater than 10 is generally considered a good application criterion.[1]Today,building an efficient light-harvesting system at a low cost is still demanding.

关键词： CEAA dyes FRET light-harvesting microreactor

Pettifor maps of complex ternary two-dimensional transition metal sulfides

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npj Computational Materials 2022年第1期8卷 1692-1702页

作者： andrea Silva Jiangming Cao Tomas Polcar Denis Kramer Faculty of Engineering and Physical Sciences University of SouthamptonUniversity RoadSO171BJSouthamptonUK National Centre for Advanced Tribology Study University of SouthamptonSouthamptonUK Faculty of Mechanical and Civil Engineering Helmut-Schmidt-Universität/Universität der Bundeswehr HamburgHolstenhofweg 8522043HamburgGermany Advanced Materials Group Department of Control EngineeringFaculty of Electrical EngineeringCzech Technical University in Prague(CTU)PragueCzech Republic Department of Heterogeneous Catalysis Helmholtz-Zentrum HereonMax-Planck-Strasse 1GeesthachtGermany

Alloying is an established strategy to tune the properties of bulk compounds for desired *** the advent of nanotechnology,the same strategy can be applied to 2D materials for technological applications,like single-layer transistors and solid *** we present a systematic analysis of the phase behaviour of substitutional 2D alloys in the Transition Metal Disulfides(TMD)*** phase behaviour is quantified in terms of a metastability metric and benchmarked against many-body expansion of the energy *** show how the metastability metric can be directly used as starting point for setting up rational search strategies in phase space,thus allowing for targeted further computational prediction and analysis of *** results presented here also constitute a useful guideline for synthesis of TMDs binary alloys via a range of synthesis techniques.

关键词： alloys sulfide behaviour