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Model-driven engineering for multi-party business processes on multiple blockchains

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Blockchain(Research and Applications) 2021年第3期2卷 31-45页

作者： flavio Corradini Alessandro Marcelletti Andrea Morichetta Andrea Polini Barbara Re Emanuele Scala Francesco Tiezzi Universita degli Studi di Camerino Camerino62032Italy

As a disruptive technology,the blockchain is continuously finding novel application contexts,bringing new opportunities and radical *** this paper,we use blockchain as a communication infrastructure to support multi-party business *** particular,through smart contracts specifically generated by the mentioned business process,it is possible to derive a trustable infrastructure enabling the interaction among ***,the emergence of different blockchain technologies,satisfying different characteristics,gives the possibility to support the same business process dealing with different non-functional *** this paper,we propose a novel engineering methodology supported by a practical framework called *** permits to derive,using a model-driven strategy,a blockchain-based infrastructure,that can be deployed over a specific blockchain technology(e.g.,Ethereum or Hyperledger Fabric).The objective is to permit the single definition and multiple deployments of the business process,to deliver the same functionalities,but satisfying different nonfunctional *** such a way,organisations willing to cooperate can select the multi-party business process and the blockchain technology they would like to use to satisfy their *** Multi-Chain,they will be able to automatically derive from a Business Process Modelling Notation(BPMN)choreography diagram a blockchain infrastructure ready to be *** overcomes the need to get acquainted with many details of the specific technology.

关键词： Blockchain Model-driven Multi-party Choreography

Correlation between the surface characteristics of carbon supports and their electrochemical stability and performance in fuel cell cathodes

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Carbon Energy 2021年第4期3卷 654-665页

作者： Ignacio jiménez-Morales Alvaro Reyes-Carmona Marc Dupont Sara Cavaliere Marlene Rodlert flavio Mornaghini Mikkel j.Larsen Madeleine Odgaard jerzy Zajac Deborah j.jones jacques Rozière ICGM Universitéde Montpellier CNRSENSCMMontpellierFrance Institut Universitaire de France(IUF) ParisFrance Imerys Graphite and Carbon BodioSwitzerland IRD Fuel Cells A/S Odense SØDenmark

In this paper,an extensive characterisation of a range of carbon blacks(CB)with similar surface area but different surface chemistry is carried out by flow calorimetry,Raman spectroscopy,dynamic water vapour sorption,instrumental gas analysis,nitrogen adsorption/desorption and high potential *** these carbon materials as supports,Pt/CB electrocatalysts are prepared by microwave-assisted polyol-mediated synthesis in gram ***,morphological and electrochemical properties of the prepared electrocatalysts are evaluated by X-ray diffraction,transmission electron microscopy,rotating disc electrode and in situ fuel cell characterisation of the corresponding membrane-electrode *** obtained results allow to establish a relationship between surface chemistry and electrochemical properties useful for the design of Pt/C catalyst layers with high performance and stability.

关键词： carbon black electrocatalyst support fuel cell cathodes surface properties

SpyGlass percutaneous transhepatic cholangioscopy-guided diagnosis of adenocarcinoma of the ampullary region in a patient with bariatric biliopancreatic diversion

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Hepatobiliary & Pancreatic Diseases International 2019年第3期18卷 291-293页

作者： Davide Colombi Giovanni Aragona flavio Cesare Bodini Adriano Zangrandi Nicola Morelli Emanuele Michieletti Department of Radiology Radiology Unit“Guglielmo da Saliceto” Hospital Via Taverna 49 29121 Piacenza Italy Department of Internal Medicine Gastroenterology and Hepatology Unit“Guglielmo da Saliceto” Hospital Via Taverna 49 29121 Piacenza Italy Department of Oncology and Hematology Pathology Unit“Guglielmo da Saliceto” Hospital Via Taverna 49 29121 Piacenza Italy

To the Editor: The definition of biliary stricture in patients with post-surgical biliary or enteric anatomy is challenging, due to limitations in accessing biliary system with a peroral approach. In these cases, perc... 详细信息

关键词： Editor biliary anatomy

Quality of Life and Osteoporotic Alterations in Patients with and without Low Bone Mineral Density:A Retrospective Study

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journal of Health Science 2019年第1期7卷 10-16页

作者： Christyan Hiroshi Iida Natália Isis caires Lavor Luciana Munhoz Reinaldo Abdala júnior Rogério Abdala Emiko Saito Arita Department of Stomatology School of Dentistry University of Sao Paulo 2227 Lineu Prestes Avenue Sao Paulo 05508-000 SP Brazil CDB(Centro de Diagnoticos Brasil) Rua Marselhesa 500-Vila Mariana Sao Paulo SP Brazil

Purpose:The objectives of this investigation were to compare the World Health Organization abbreviated instrument for quality of life assessment(WHOQOL-bref)scores of osteoporotic and non-osteoporotic Brazilian patients and to evaluate the correlation between mandibular cortical index(MCI)and bone densitometry(DXA)results in both ***:This research was conducted with an initial sample of 74 female participants who underwent panoramic radiography and forearm *** were divided into two groups:osteoporotic and non-osteoporotic patients.A quality of life assessment questionnaire was *** scores from the questionnaire were compared between the two groups and the correlation between DXA and MCI was ***:Psychological and social domains in osteoporotic patients presented lower scores(12.65 and 6.00 respectively)when compared to non-osteoporotic patients(14.70 and 13.97 respectively).MCI was inversely correlated with ***:According to WHOQOL-bref,osteoporotic patients may have lower quality of life scores when considering psychological and social *** is inversely correlated with T-scores but demonstrates greater correlation when considering non-osteoporotic patients with higher T-score values.

关键词： Osteoporosis panoramic radiography bone loss quality of life bone mineral density

A methodology for coffee price forecasting based on extreme learning machines

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Information Processing in Agriculture 2022年第4期9卷 556-565页

作者： Carolina Deina Matheus Henrique do Amaral Prates Carlos Henrique Rodrigues Alves Marcella Scoczynski Ribeiro Martins flavio Trojan Sergio Luiz Stevan jr Hugo Valadares Siqueira Department of Production Engineering Federal University of Rio Grande do Sul90.035-190Brazil Department of Electronics Federal University of TechnologyParana 84017-220Brazil Graduate Program in Production Engineering Federal University of TechnologyParana 84017-220Brazil

This work introduces a methodology to estimate coffee prices based on the use of Extreme Learning *** process is initiated by identifying the presence of nonstationary components,like seasonality and *** components are withdrawn if they are ***,the temporal lags are selected based on the response of the Partial Autocorre-lation Function *** predictors,we address the following models:Exponential Smooth-ing(ES),Autoregressive(AR)and Autoregressive Integrated and Moving Average(ARIMA)models,Multilayer Perceptron(MLP)and Extreme Learning Machines(ELMs)neural *** computational results based on three error metrics and two coffee types(Ara-bica and Robusta)showed that the neural networks,especially the ELM,can reach higher performance levels than the other *** methodology,which presents preprocess-ing stages,lag selection,and use of ELM,is a novelty that contributes to the coffee prices forecasting field.

关键词： Coffee price forecasting Linear models Artificial neural networks Computational intelligence

Upstream Operations in the Oil Industry： Rigorous Modeling ofan Electrostatic Coalescer

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Engineering 2017年第2期3卷 220-231页

作者： Francesco Rossi Simone Colombo Sauro Pierucci Eliseo Ranzi flavio Manenti Department of Chemistry Materials and Chemical Engineering "Giulio Natta" Polytechnic University of Milan Milan 20133 Italy Davidson School of Chemical Engineering Purdue University West Lafayette IN 47907-2100 USA

This paper deals with a first-principle mathematical model that describes the electrostatic coalescer unitsdevoted to the separation of water from oil in water-in-oil emulsions, which are typical of the upstreamoperations in oil fields. The main phenomena governing the behavior of the electrostatic coalescer are denscribed, starting from fundamental laws. In addition, the gradual coalescence of the emulsion droplets isconsidered in the mathematical modeling in a dynamic fashion, as the phenomenon is identified as a keystep in the overall yield of the unit operation. The resulting differential system with boundary conditionsis then integrated via performing numerical libraries, and the simulation results confirm the available lit-erature and the industrial data. A sensitivity analysis is provided with respect to the main parameters. Themathematical model results in a flexible tool that is useful for the purposes of design, unit behavior predic-tion. performance rnoniroring, and ontimization.

关键词： Upstream operations Electrostatic coalescer Desalter Rigorous modeling Water-oil emulsion

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一种基于MDE的形式化组合建模仿真方法

系统仿真学报 2009年第18期21卷 5608-5613页

作者：吴狄陈杰 flavio Oquendo 北京理工大学信息科学技术学院北京100081 法国南部列塔尼大学VALORIA研究室瓦纳56017

大规模的联合建模与仿真迫切需要提高模型及仿真的可组合性。针对实现可组合仿真的主要问题,分析并提出了基于不同抽象程度的组合仿真的层次化功能结构模型。结合MDE模型驱动工程的设计思想,应用形式化建模的相关方法和π语言,提出了覆... 详细信息

大规模的联合建模与仿真迫切需要提高模型及仿真的可组合性。针对实现可组合仿真的主要问题,分析并提出了基于不同抽象程度的组合仿真的层次化功能结构模型。结合MDE模型驱动工程的设计思想,应用形式化建模的相关方法和π语言,提出了覆盖可组合仿真系统设计整个生命周期的一整套开发方法。同时,建立了基于MDE的模型映射机制,实现了基于一系列工具支持的不同模型之间的相互关联和转换,并在某大型分布式仿真系统开发中得到了应用。

关键词：模型驱动工程形式化方法层次化组合仿真模型框架模型映射机制

High-throughput phenotyping by applying digital morphometrics and fluorescence induction curves in seeds to identifying variations:A case study of Annona(Annonaceae)species

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Information Processing in Agriculture 2018年第4期5卷 443-455页

作者： Montcharles S.Pontes Carlos V.Montefusco-Pereira Biswapriya B.Misra Howard L.Ribeiro-junior Daniela E.Graciano jaqueline S.Santos Michele A.S.Nobrega Shaline S.L.Fernandes Anderson R.L.caires Etenaldo F.Santiago Plant Resources Study Group Natural Resources Study CenterUniversidade Estadual de Mato Grosso do Sul79804-970-P.O.Box.351DouradosMSBrazil Programa de Pos-Graduacao em Recursos Naturais(PGRN) Universidade Estadual de Mato Grosso do SulDouradosMSBrazil Pharmaceutical and Medicinal Chemistry Saarland University and Helmholtz Institute for Pharmaceutical Research Saarland(HIPS)Campus C2.3D-66123 SaarbruckenGermany Center for Precision Medicine Department of Internal MedicineSection on Molecular MedicineWake Forest School of MedicineMedical Center BoulevardWinston SalemNC 27157USA Center for Research and Drug Development Universidade Federal do Ceara60160250 FortalezaCEBrazil Applied Optics Group Laboratory of BiophotonicsUniversidade Federal da Grande Dourados79804-970-P.O.Box.351DouradosMSBrazil Optics and Photonic Group Institute of PhysicsUniversidade Federal de Mato Grosso do SulCP 54979070-900 Campo GrandeMSBrazil

Differences in physical and structural characteristics of seeds may indicate variability within and between plant *** the present study,we performed a close characterization of dimension,shape,and tegument delayed chlorophyll fluorescence in seeds obtained from three species of the genus Annona(Annonaceae),i.e.,Annona coriacea,***,*** showed that studied seeds may be sorted as scalene ellipsoids expressing low values for the seed *** morphological estimates suggested differences in seed shape for all species.A high correlation was observed between surface area and volume(r^2>99%)for all the three species suggesting that in addition to structural *** addition,we also observed very high positive correlations(Rho=1.000,p<0.001)between surface area and arithmetic mean diameterof the seeds for all *** first principal component(PCA1)of elliptical Fourier descriptors explained most of the variations in morphological structure of the seeds in the three ***,a less intense tegument delayed chlorophyll fluorescence was observed for *** while the highest intensity was recorded for ***,revealing the potential use of fluorescence spectroscopy in discrimination at the species level by analyzing the frequency domain by means of Fourier Transform spectra as well as the relationship time-frequency of chlorophyll fluorescence.

关键词： Dynamics of fluorescence Fourier descriptors Structural traits Phenomics

Experimental and Analytical Study of Torsional Vibration under Multiaxial Loading in Time Domain

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journal of Mechanics Engineering and Automation 2016年第3期6卷 148-157页

作者： Dionisio jose Rodrigues da Costa Ladario da Silv jorge Rodrigues Duran jose flavio Feiteira Programa de Pos-graduacao em Engenharia Metalurgica (PPGEM) Escola Industrial Metalurgica de Volta Redonda (EEIMVR)Universidade Federal Fluminense (UFF) Volta Redonda 27255-125 R J Brasil Posto Regional de Policia Tecnico-Cientifica de Volta Redonda (PRPTC-VR) Volta Redonda 27180-000 R J Brasil Departamento de Fisica lnstituto de Ciencias Exatas (1CEx) UFF Volta Redonda 27213-145 RJ Brasil Departamento de Engenharia Mecdnica EEIMVR UFF Volta Redonda 27255-125 R J Brasil

The torsional vibration of power transmission shaft is a phenomenon whose analytical modeling can be represented by a differential equation of motion proposed by technical literature. The solutions of these equations need coefficients and parameters that, usually, must be experimentally estimated. This work uses a resistive electric SG （strain gage） to dynamically determine strains produced in the shaft due to harmonic oscillatory motion under multiaxial loading. This movement is simulated on a prototype specially developed for this purpose. It comprises a pulley attached to the end of a stepped cantilevered shaft, which is clamped at the opposite end. In this configuration, a cam generates a torque to the system, springs regulate the stiffness and the damping coefficient of the assembly, as well as they can be suitably adjusted to produce an underdamped condition. The main advantage, highlighted in this study, refers to a major simplification. Although the system under study shows multiple degrees of freedom （torsion and bending）, the shape and the positioning of linking SGs with the resistor bridge （Wheatstone Bridge）, allow ＂to evaluate the loading effects independently, as if only one degree of freedom of the system exists at a time domain. Strains graphs for two forms of cyclic torsional oscillation, analytical and experimental, were successfully generated.

关键词： Underdamped system free and forced response torsional vibration strain gauges.