Search results for "tool ..."

showing 10 items of 88 documents

E-portfolio e flipped classroom: un’indagine esplorativa con i futuri insegnanti di scuola primaria

2023

Il contributo intende far riflettere sul tema della formazione dei futuri insegnanti di scuola primaria, a partire dall’impiego dell’e-portfolio come dispositivo innovativo per promuovere l’acquisizione della competenza riflessiva e autovalutativa all’interno della flipped classroom. La ricerca, che ha coinvolto 154 studenti del Corso di laurea magistrale in Scienze della Formazione Primaria dell’Università degli Studi di Palermo, che frequentavano il corso di Docimologia nell’anno accademico 2020/2021, presenta i presupposti teorici, gli obiettivi e le modalità operative di un percorso che ha visto l’impiego dell’e-portfolio nella flipped per promuovere lo sviluppo delle competenze docimol…

The study aims to reflect on the training of future primary school teachers by starting from the use of the e-portfolio as an innovative tool to promote the acquisition of reflective and self-evaluation competence within the flipped classroom. The research involved 154 students of Primary Education Master’s Degree Course of the University of Palermo attending to the Docimology course during the academic year 2020/2021. This paper presents the theoretical assumptions objectives and operating methods of a path that made the use of the e-portfolio in flipped classroom to promote the development of docimological skills in higher education. It was hypothesized that the training intervention designed according to the principles of the flippmethodology and through the use of the e-portfolio would have contributed to the development of students’ self-evaluation skills during the 30 hours of the Docimology course.Settore M-PED/04 - Pedagogia Sperimentale
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Epistemic and didactic values of the demonstrative process in different cultures: a case study in Geometry with Chinese and Italian students

2011

This paper presents same key findings of the research project conducted by G.R.I.M. of Palermo on the approaches to justification and proof in Geometry by investigating how Chinese and Italian teachers and students taught particular geometrical topics refereed to different epistemic and didactic values related to own culture. It was found that Chinese teachers and students emphasized justification of the proof by a stressed visual verification based on some metarules linked with the structure of their own written language and defined as historical Chinese modus operandi in the Jiuzhang Suanshu. The Italians paid close attention to mathematical proof by a hypoxemic deductive system defined on the Euclide’ Elements. The geometrical problem discussed on the paper was defined and presented as “one problem multiple solution problems” and “one problem multiple changes”. Important aspect of the case study discussed in the paper focus on the mediation of knowledge between Chinese and Italian students involved in multicultural class. According to us these kind of activities can establish possibilities for the students to confront their self with different cultural social and educational prospective of knowledge discovering the power of mathematics as tool of negotiation in multicultural class?Settore MAT/04 - Matematiche Complementari
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The performance of molybdenum toughened alumina cutting tools in turning a particulate metal matrix composite

2003

In this paper, a study of the tool wear mechanism in turning aluminium alloy reinforced with alumina using molybdenum-toughened alumina tools is presented. Alumina tools with three different amounts (15, 20 and 25 vol.%) of molybdenum were prepared and tested. The wear type was identified and its evolution with cutting time was measured. The results show that the main mechanism of tool wear is abrasion and not heat. The best overall performance was achieved, as far as flank wear is concerned, using the tool with 20 vol.% of molybdenum added. This has been explained using some of the composites intrinsic properties. SEM examination revealed that molybdenum particles are easily torn from the …

ToughnessMaterials scienceCutting toolAbrasion (mechanical)Mechanical EngineeringMetal matrix compositechemistry.chemical_elementCondensed Matter PhysicschemistryMachiningMechanics of MaterialsMolybdenumvisual_artAluminium alloyvisual_art.visual_art_mediumGeneral Materials ScienceTool wearComposite materialMaterials Science and Engineering: A
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Wear mechanisms and residual stresses in alumina-based laminated cutting tools

2005

Abstract The outstanding performances of the Al2O3 cutting tools in terms of potential cutting speed can lead to substantial economies in the machining of metallic materials. Nevertheless, their widespread use is limited by some drawbacks such as the tendency to edge chipping and to the propagation of microcracks, which can lead to premature failures. These shortcomings are due to the intrinsic low toughness of the ceramic material, which is in turn related to its characteristics non-metallic bonds. A well-recognised method of increasing the toughness of brittle materials is the introduction of surface compressive stresses, which can be obtained through a suitable lamination geometry of the…

ToughnessMaterials scienceCutting toolSurfaces and Interfacesengineering.materialCondensed Matter PhysicsSurfaces Coatings and FilmsFracture toughnessBrittlenessMachiningMechanics of MaterialsResidual stressvisual_artTool steelMaterials Chemistryengineeringvisual_art.visual_art_mediumCeramicComposite material
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On the choice of tool material in friction stir welding of titanium alloys

2012

Tungsten alloysFriction Stir Welding; Titanium Alloys; Tungsten alloys; tool lifeFSW TitaniumFriction Stir Weldingtool lifeSettore ING-IND/16 - Tecnologie E Sistemi Di LavorazioneTitanium Alloys
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Framework for Evaluating the Version Management Capabilities of a Class of UML Modeling Tools from the Viewpoint of Multi-site, Multi-partner Product…

2009

UML models are widely used in software product line engineering for activities such as modeling the software product line reference architecture, detailed design, and automation of software code generation and testing. But in high-tech companies, modeling activities are typically distributed across multiple sites and involve multiple partners in different countries, thus complicating model management. Today’s UML modeling tools support sophisticated version management for managing parallel and distributed modeling. However, the literature does not provide a comprehensive set of industrial-level criteria to evaluate the version management capabilities of UML tools. This article’s contributio…

UML modelingtool evaluationmodeling toolsoftware product line organizationversion managementglobal software development
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The language-(in)dependence of writing skills: translation as a tool in writing process research and writing instruction

2014

A pilot study was conducted in which 6 students with L1 German had to produce a German version of a text they had composed in their L2 English. The goals were to explore (a) in what respects the ability of advanced university English students to express themselves in their L2 English differs from their ability to do so in their L1 German, and (b) for which aspects of writing the implementation of translation exercises is useful as a tool to improve writing skills. The methods of data collection used were think-aloud and keystroke logging. In the analysis, special emphasis was placed on text-level errors as opposed to formal, lexical and grammatical errors. In their L1 versions, students wer…

UNESCO::CIENCIAS DE LAS ARTES Y LAS LETRASLinguistics and LanguageText-level errorsData collectionAcademic writingComputer scienceTraducción e InterpretaciónWriting processWriting in L2Keystroke loggingLanguage and Linguisticslanguage.human_languageLinguisticsEducationTranslation as a tool in writing instructionGermanFunctional sentence perspectiveWriting vs. translating; Writing in L2; Text-level errors; Academic writing; Translation as a tool in writing instruction:CIENCIAS DE LAS ARTES Y LAS LETRAS [UNESCO]Academic writinglanguageWriting vs. translatingEmphasis (typography)Coherence (linguistics)MonTI. Monografías de Traducción e Interpretación
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Integrated System for Monitoring the Tool State Using Temperature Measuring by Natural Thermocouple Method

2014

The intensive developments of intelligent manufacturing systems in the last decades open the large possibilities of more accurate monitoring of the metal cutting process. One of the most important factors of the process is the tool state given by the rate of the tool wear, which is the result of a lot of influences of almost all cutting parameters. The modern tool monitoring systems relieved that the accuracy of the results increases when using a combination of surveyed signals such as: vibrations, power consumption, acoustic emission, forces or tool temperature. Combining the output signals in a monitoring function using the neural network method gives the best results when using on-line m…

VibrationEngineeringAcoustic emissionArtificial neural networkThermocouplebusiness.industryGeneral EngineeringProcess (computing)CalibrationBlock diagramMechanical engineeringTool wearbusinessAdvanced Materials Research
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Performing arts and mediation technology in the period of lockdown

2021

Advancements in digital technologies have become novel ways to enrich communication, expression, and transmission of arts knowledge. Technology is increasingly implemented in the performance space, as a source of inspiration for artists. Especially in this period of lockdown, mediation technology has turned out to be an essential tool for different aspects of social life, as in performing arts. With venues, schools and artistic activities closed, performers, students and spectators have been obliged to keep connecting in remote conditions. This article wants to retrace the aesthetic impact of mediation technology in performing arts during this period of lockdown by focusing on the aspects t…

as a source of inspiration for artists. Especially in this period of lockdownUNESCO::CIENCIAS DE LAS ARTES Y LAS LETRASGiusy Advancements in digital technologies have become novel ways to enrich communicationterritorios para el arte 590908 2021 7 8182072 Performing arts and mediation technology in the period of lockdown Caruso [revista de investigación musical]schools and artistic activities closed2386-8260 13268 Itamarand transmission of arts knowledge. Technology is increasingly implemented in the performance spaceperformersPerforming Artsrevista de investigación musical: territorios para el arte 590908 2021 7 8182072 Performing arts and mediation technology in the period of lockdown Carusoexpression:CIENCIAS DE LAS ARTES Y LAS LETRAS [UNESCO]students and spectators have been obliged to keep connecting in remote conditions. This article wants to retrace the aesthetic impact of mediation technology in performing arts during this period of lockdown by focusing on the aspects that induced advancements of strategies for the transmission of performing arts. The goal is to illustrate the potentialities as well as the challenges of the arttechnology encounter by underlining the transformation of the interaction with and perception of the performance space in remote conditions and in distance learning. The implementation of digital technologies is contributing to the evolution of the performing arts sector by facilitating futuristic approaches. 402 412mediation technology has turned out to be an essential tool for different aspects of social lifeas in performing arts. With venues
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Modular fastening system and tool–holder working unit for incremental forming

2019

Incremental forming can be usually unfolded either on CNC milling machine–tools or serial industrial robots. The approach proposed in this paper tackles the problem of designing a modular fastening system, which can be adapted for both above mentioned technological equipment. The fastening system of the sheet–metal workpiece is composed of a fixing plate and a retaining plate. The fixing and retaining plates will be made up of different individual elements, which can be easily repositioned to obtain different sizes of the part. Moreover, the fastening system has to be able to be positioned either horizontally (to be fitted on CNC milling machines) or vertically (to be fitted on industrial r…

business.industryComputer sciencelcsh:TA1-2040Mechanical engineeringComputerApplications_COMPUTERSINOTHERSYSTEMSTool holderModular designbusinesslcsh:Engineering (General). Civil engineering (General)Unit (housing)MATEC Web of Conferences
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