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Three Dimensional Coupling between Elastic and Thermal Fields in the Static Analysis of Multilayered Composite Shells

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Computer Modeling in Engineering & Sciences 2023年第9期136卷 2551-2594页

作者： salvatore Brischetto Roberto Torre Domenico Cesare Department of Mechanical and Aerospace Engineering.Politecnico di Torino Torino10129Italy

This new work aims to develop a full coupled thermomechanical method including both the temperature profile and displacements as primary unknowns of the *** generic full coupled 3D exact shell model permits the thermal stress investigation of laminated isotropic,composite and sandwich *** and spherical panels,cylinders and plates are analyzed in orthogonal mixed curved reference *** 3D equilibrium relations and the 3D Fourier heat conduction equation for spherical shells are coupled and they trivially can be simplified in those for plates and cylindrical *** exponential matrix methodology is used to find the solutions of a full coupled model based on coupled differential relations with respect to the thickness *** analytical solution is based on theories of simply supported edges and harmonic relations for displacement components and *** sovra-temperature magnitudes are directly applied at the outer faces through static state *** a consequence,the sovra-temperature description is assumed to be an unknown variable of themodel and it is calculated in the sameway as the three *** final systemis based on a set of coupled homogeneous differential relations of second order in the thickness *** system is reduced in a first order differential relation system by redoubling the number of ***,the exponential matrix methodology is applied to calculate the *** temperature field effects are evaluated in the static investigation of shells and plates in terms of displacement and stress *** an appropriate preliminary validation,new benchmarks are discussed for several thickness ratios,geometrical data,lamination sequences,materials and sovra-temperature values imposed at the outer *** make evident the accordance between the uncoupled thermo-mechanical model and this new full coupled thermo-mechanical model without the need to se

关键词： Three-dimensional exact thermo-elastic shellmodel full coupled thermoelasticity three-dimensional fourier heat conduction relation plate and shell geometries laminated and sandwich configurations

Structural health monitoring of asphalt pavements using smart sensor networks: A comprehensive review

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Journal of Traffic and Transportation Engineering(English Edition) 2020年第5期7卷 639-651页

作者： Alessandro Di Graziano Vincenzo Marchetta salvatore Cafiso Department of Civil Engineering and Architecture University of CataniaCatania 95225Italy

Early, effective and continuous monitoring allows to reduce costs and to extend life of road infrastructure. For this reason, over the years, more and more efforts have been made to implement more advanced and effective monitoring systems at ever more contained costs,going from impractical manual and destructive methods through automated in vehicle equipment to the most recent wireless sensor network(WSN) embedded into the pavement. The purpose of this paper is to provide a comprehensive, up-to-date critical literature review of wireless sensor networks for pavement health monitoring, considering, also,the experience gained for wired sensor as fundamental point of reference. This work presents both the methodology used to collect and analyse the current bibliography and provides a description and comments fundamental characteristics of wireless sensor networks for pavement monitoring for damage detection purposes, among which energy supply, the detection method, the hardware and network architecture and the performance validation procedures. A brief analysis of other possible complementary applications of smart sensor networks, such as traffic and surface condition monitoring, is provided. Finally, a comment is provided on the gaps and possible directions that future research could follow to allow the extensive use of wireless sensor networks for pavement health condition monitoring.

关键词： Pavement engineering Wireless sensor network Literature analysis Structural health monitoring Asphalt pavement

Homeopathic potencies of Arnica montana L. change gene expression in a Tamm-Horsfall protein-1 cell line in vitro model: the role of ethanol as a possible confounder and statistical bias

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Journal of Integrative Medicine 2017年第4期15卷 255-264页

作者： salvatore Chirumbolo Geir Bj?rklund Department of Neurological and Movement Sciences University of Verona Council for Nutritional and Environmental Medicine

Marzotto et al. showed that homeopathic preparations of Amica montana L. acted directly on gene expression of Tamm-Horsfall protein- 1 （THP-1） monocyte/macrophage cell lines activated with phorbol 12-mydstate 13- acetate and interleukin-4 （IL-4）. A. montana homeopathic dilutions are used in complementary and alternative medicine to treat inflammation disorders and post-traumatic events as well as for wound repair. The French Pharmacopoeia of these remedies uses 0.3% ethanol in each centesimal dilution. In this paper, we discuss how ethanol-containing A. montana homeopathic centesimal dilutions can change gene expression in IL-4- treated monocyte/macrophage THP-I. We assessed the role of ethanol in the Arnica homeopathic dilutions containing this alcohol by investigating its action on gene expression of THP-1 cell. Evidence would strongly suggest that the presence of ethanol in these remedies might play a fundamental role in the dilutions ability to affect gene expression, particularly for doses from 5c to 15c. Where, rather than playing a major role in the mesoscopic structure of water, the ethanol might have a chemical-physical role in the induction of THP-1 gene expression, apoptosis, and deoxyribonucleic acid function. This evidence generates a debate about the suggestion that the use of a binary-mixed solvent in homeopathic chemistry, used by Hahnemann since 1810, may be fundamental to explain the activity of homeopathy on cell models.

关键词： Arnica homeopathy bias statistics gene expression Tamm-Horsfall protein cell line

Downwash modelling for three-lifting-surface aircraft configuration design

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Chinese Journal of Aeronautics 2023年第6期36卷 161-173页

作者： salvatore CORCIONE Giordana BONAVOLONTÃ Agostino DE MARCO Fabrizio NICOLOSI Department of Industrial Engineering University of Naples“FedericoⅡ”Naples 8125Italy School of Aerospace Transport&Manufacturing Cranfield UniversityBedford MK43 OALUnited Kingdom

This paper introduces a semi-empirical model to predict the downwash gradient at the horizontal tail of a three-lifting-surface *** superposition principle applied to well established formulations valid for two lifting surfaces is not a reasonable approach to calculate the downwash of a canard-wing-tail layout,and this paper demonstrates that such a basic technique leads to incorrect ***,an ad hoc prediction model is proposed that considers the combined nonlinear effects of canard and main wing inductions on tail downwash,being based on a full factorial design sweep of CFD simulations obtained by varying the main geometrical parameters of the three lifting surfaces.A suitable analytical formula for the downwash gradient is established through a process of data analysis and factor *** presented model extends the validity of the available models for traditional two-lifting-surface designs by means of a correction *** engineering estimation method introduced here exhibits an acceptable accuracy,as well as relatively small prediction errors,and it is suitable for conceptual and preliminary studies of threesurface *** value of this methodology is confirmed by the validation with the results of numerical and experimental investigations on a case study aircraft.

关键词： Aerodynamic modelling Aircraft design Design of experiments Downwash Three-lifting-surface

Energy-related catalysis

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National Science Review 2015年第2期2卷 143-145页

作者： salvatore Abate Gabriele Centi Siglinda Perathoner Department DIECII Section Industrial ChemistryUniversity of Messina

Availability of energy is a vital element of our current society,but energy must be converted to usable forms,either when stemming from fossil fuel sources or from renewable(perennial)*** plays a central role to enabl... 详细信息

关键词： Energy-related catalysis GTL

Blue carbon on the rise:challenges and opportunities

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National Science Review 2018年第4期5卷 464-468页

作者： Nianzhi Jiao Hong Wang Guanhua Xu salvatore Aricò State Key Laboratory of Marine Environmental Science Xiamen University State Ocean Administration Ministry of Science and Technology China Intergovernmental Oceanographic Commission of United Nations Educational Scientific and Cultural Organization (UNESCO)

BLUE CARBON ON THE RISE Climate change is a global concern that requires urgent *** a signatory to the Paris Agreement,China has committed to have its greenhouse gas emission reach a peak by the year 2030,which means ... 详细信息

关键词： Blue carbon on the rise:challenges and opportunities

Capsule endoscopy in pediatrics: A 10-years journey

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World Journal of Gastroenterology 2014年第44期20卷 16603-16608页

作者： salvatore Oliva Stanley A Cohen Giovanni Di Nardo Gianfranco Gualdi salvatore Cucchiara Emanuele Casciani Department of Pediatrics Pediatric Gastroenterology Unit Sapienza University of Rome Children’s Center for Digestive Health Care Radiology DEA Sapienza University of Rome University Hospital Umberto I

Video capsule endoscopy (CE) for evaluation the esophagus (ECE), small bowel (SBCE) and the colon (CCE) is particularly useful in pediatrics, because this imaging modality does not require ionizing radiation, deep sedation or general anesthesia. The risk of capsule retention appears to be dependent on indication rather than age and parallels the adult experience by indication, making SBCE a relatively safe procedure with a significant diagnostic yield. The newest indication, assessment of mucosal change, greatly enhances and expands its potential benefit. The diagnostic role of CE extends beyond the SB. The use of ECE also may enhance our knowledge of esophageal disease and assist patient care. Colon CCE is a novel minimally invasive and painless endoscopic technique allowing exploration of the colon without need for sedation, rectal intubation and gas insufflation. The limited data on ECE and CCE in pediatrics does not yet allow the same conclusions regarding efficacy; however, both appear to provide safe methods to assess and monitor mucosal change in their respective areas with little discomfort. Moreover, although experience has been limited, the patency capsule may help lessen the potential of capsule retention; and newly researched protocols for bowel cleaning may further enhance CE’s diagnostic yield. However, further research is needed to optimize the use of the various CE procedures in pediatric populations.

关键词： Capsule endoscopy Children Small bowel Pediatric endoscopy

Evaluation of the potential exposure of butterflies to genetically modified maize pollen in protected areas in Italy

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Insect Science 2018年第4期25卷 549-561页

作者： salvatore Arpaia Ferdinando Baldacchino Sara Bosi Giovanni Burgio Simona Errico Rosaria Alessandra Magarelli Antonio Masetti salvatore Santorsola ENEA-Italian National Agency for New Technologies Energy and Sustainable Economic Development Research Centre Trisaia Rotondella (MT) Italy Dipartimento di Scienze Agrarie Alma Mater Studiorum Universita di Bologna Bologna Italy

Environmental impacts of genetically modified crops are mandatorily assessed during their premarket phase. One of the areas of concern is the possible impact on nontar- get organisms. Crops expressing Cry toxins might affect Lepidoptera larvae living outside cultivated fields, through pollen deposition on wild plants, which constitute their food source. While pollen toxicity varies among different events, possible exposure ofnontarget species depends on the agro-environmental conditions. This study was conducted in two protected areas in Italy, characterized by different climatic conditions, where many Lepi- doptera species thrive in proximity to maize cultivations. To estimate the possible exposure in absence of the actual stressor （e.g., Cryl-expressing maize plants）, we conducted a two-year field survey of butterflies and weeds. Indicator species were selected--Aglais （Inachis） io in the Northern site and Vanessa cardui in the Southern site--and their phe- nology was investigated. Pollen dispersal from maize fields was measured by collection in Petri dishes. Duration and frequency of exposure was defined by the overlap between pollen emission and presence of larvae on host plants. Different risk scenarios are expected in the two regions： highest exposure is foreseen forA. io in the Northern site, while minimal exposure is estimated for V. cardui in the Southern site. In the latter case, locally grown maize cultivars flower in mid-summer in coincidence with an aestivation period for several butterfly species due to hot and dry conditions. Moreover, host plants of V. cardui are at the end of their life cycle thus limiting food availability.

关键词： environmental risk assessment exposure assessment genetically modified plants Lepidoptera nontarget organisms receiving environment

Assessing the operational design domain of lane support system for automated vehicles in different weather and road conditions

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Journal of Traffic and Transportation Engineering(English Edition) 2022年第4期9卷 631-644页

作者： Giuseppina Pappalardo Riccardo Caponetto Rosario Varrica salvatore Cafiso Department of Civil Engineering and Architecture University of CataniaCatania 95125Italy Department of Electrical Electronic and Computer EngineeringUniversity of CataniaCatania 95125Italy

With the growing rate of automated vehicles(AVs)at the lower level of automation,the experimental tests are also in progress with vehicles at higher *** the absence of extended digital infrastructures and deployment of level 5 full automated vehicles,the physical infrastructure is required to maintain a fundamental role to enable their introduction in public *** paper focuses on lane support system(LSS)whose operational design domain(ODD)is strongly connected to the road characteristics and *** experimental test was carried out with a state of the art,and LSS and advanced technologies were used for road monitoring on different roads under various environmental conditions including dry,wet pavements and *** applied the generalized estimation equation for logistic regression to account within-cluster homogeneity which is induced by repeated measures on the same road *** models allow the identification of variables that are significant for the LSS fault probability among various effects of road features including marking,pavement distress,weather conditions,horizontal curvature,and cross *** pointed out the relevance of the wet retro-reflection of marking(RLw)and the horizontal curvature in the definition of ODD for *** values have been proposed for the tested *** pavement doesn’t affect the LSS performance when compared to the dry *** was shown to be critical even with very good road characteristics.

关键词： Lane support system Physical infrastructure Operational design domain Weather condition