0000000001156944

AUTHOR

A. Pasta

showing 6 related works from this author

Generation of narrowband antisymmetric lamb waves using a formed laser source in the ablative regime

2007

A formed laser source, using a four-element lenticular array, is used in the ablative regime to generate select, narrowband, acoustic plate waves. The arrangement of the array produces acoustical signals that have frequencies compatible with the response of the broadband capacitive air-coupled transducer used in this study. A simplified concept is presented to explain the effect of a line array source on the frequency content of acoustic waves. The analytical model for a point pulse surface displacement is derived from the point load solution to Lamb's problem. The point pulse displacement elements of a line array source are summed mathematically, taking into account all applicable propagat…

RAYLEIGH-WAVESAcoustics and UltrasonicsAcousticsLine sourceDisplacement (vector)Acoustic dispersionSettore ING-IND/14 - Progettazione Meccanica E Costruzione Di MacchineSonicationsymbols.namesakeLamb wavesOpticsCOMPOSITESScattering RadiationComputer SimulationElectrical and Electronic EngineeringRayleigh waveSURFACE ACOUSTIC-WAVESLINE SOURCEDispersion (water waves)InstrumentationPhysicsULTRASONIC-WAVESNONCONTACTbusiness.industryAIRLasersEquipment DesignAcoustic waveVELOCITYModels TheoreticalINSPECTIONEquipment Failure AnalysisSurface wavesymbolsComputer-Aided DesignbusinessPOINTIEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
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STRUCTURAL OPTIMIZATION OF INNOVATIVE RUDDER FOR HSC

2012

Currently, directional and stability control systems (rudders and flaps) of high speed craft (HSC) are made by steel box-shaped elements. This is mainly caused by the high hydrodynamic stresses applied on these elements due to the high cruising speed of HSC. In order to reduce the weight of these elements and to increase the resistance to external corrosive action, innovative manufacturing technologies and new materials are studied. In this paper, innovative hybrid steel-composite rudder are presented to use in high speed craft.

FEM Rudder CFD HSC
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Layer thickness optimisation in a laminated composite

1997

Abstract The paper describes a method to optimise the thickness balance within a composite laminate with layers oriented according to a limited set of angles. The laminate must be symmetric, balanced and loaded in-plane. The optimisation process is particularly suited to be used in conjunction with a finite element program. It provides the designer with the optimal overall engineering characteristics anda list of all the possible orientation combinations ranked with respect to their safety factor. The optimisation method is based on the first order gradient optimum search method and operates iteratively in the engineering elastic characteristics field. The cost function implemented up to no…

Safety factorMaterials scienceOrientation (computer vision)business.industryMechanical EngineeringProcess (computing)StiffnessFunction (mathematics)Structural engineeringIndustrial and Manufacturing EngineeringFinite element methodSet (abstract data type)Mechanics of MaterialsSimple (abstract algebra)Ceramics and Compositesmedicinemedicine.symptombusiness
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Reported muscle symptoms during statin treatment amongst Italian dyslipidaemic patients in the real‐life setting: the PROSISA Study

2021

Aim: Statin-associated muscle symptoms (SAMS) are a major determinant of poor treatment adherence and/or discontinuation, but a definitive diagnosis of SAMS is challenging. The PROSISA study was an observational retrospective study aimed to assess the prevalence of reported SAMS in a cohort of dyslipidaemic patients. Methods: Demographic/anamnestic data, biochemical values and occurrence of SAMS were collected by 23 Italian Lipid Clinics. Adjusted logistic regression was performed to estimate odds ratio (OR) and 95% confidence intervals for association between probability of reporting SAMS and several factors. Results: Analyses were carried out on 16 717 statin-treated patients (mean ± SD, …

0301 basic medicineMalemedicine.medical_specialtySettore MED/09 - Medicina Internaadverse effects; myopathy; statin-associated muscle symptoms; statinsstatin-associated muscle symptomsadverse effects; myopathy; statin-associated muscle symptoms; statins.030204 cardiovascular system & hematologystatinsMedication Adherence03 medical and health sciences0302 clinical medicineMuscular DiseasesInternal medicineadverse effectInternal MedicinemedicinePrevalencestatins.Humansstatin‐associated muscle symptomsAdverse effectDechallengeadverse effects; myopathy; statin-associated muscle symptoms; statins; Creatine Kinase; Dyslipidemias; Female; Humans; Hydroxymethylglutaryl-CoA Reductase Inhibitors; Italy; Male; Medication Adherence; Middle Aged; Muscular Diseases; Prevalence; Retrospective StudiesCreatine KinaseDyslipidemiasRetrospective Studiesbusiness.industryRetrospective cohort studyOdds ratioOriginal ArticlesMiddle AgedConfidence intervalDiscontinuation030104 developmental biologyItalyConcomitantCohortadverse effectsOriginal ArticleFemaleHydroxymethylglutaryl-CoA Reductase Inhibitorsbusinessstatin-associated muscle symptommyopathyJournal of Internal Medicine
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Fatigue characterization of hybrid joints CFRP-aluminum obtained by Self-Pierce Riveting (SPR)

2012

Settore ING-IND/14 - Progettazione Meccanica E Costruzione Di MacchineSettore ING-IND/16 - Tecnologie E Sistemi Di LavorazioneSPR joining hybrid joints
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Experimental study of SPR-bonded joints CFRP-AA2024-T6

2012

Settore ING-IND/14 - Progettazione Meccanica E Costruzione Di MacchineJoining SPR hybridSettore ING-IND/16 - Tecnologie E Sistemi Di Lavorazione
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