1,720,981 research outputs found
Design for Additive Manufacturing of a non-assembly robotic mechanism
No full textThe growing potential of additive manufacturing technologies is currently being boosted by their introduction in directly manufacturing of ready-to-use products or components, regardless of their shape complexity. Taking advantage from this capability, a full set of new solutions to be explored is related to the possibility to directly manufacture joints or mechanisms as a unibody structure. In this paper, the preliminary design of a robotic mechanism is presented. The component is designed in order to be manufactured as a unibody structure by means of an Additive Manufacturing technology. Fused Deposition Modelling technique is used to print the mechanic arm as a single component, composed by different functional parts already assembled in the CAD model. Soluble support material is commonly used to support undercuts: in this case it is also deposited in the space between two adjacent parts of the same component, in order to allow the relative motion and the kinematic connection between them. The design process considers component optimization in relation to both the specific manufacturing technique and both the interaction between the different parts of the same component, in order to guarantee the proper relative motions. The conceived mechanism consists in a robotic structure in which the mechanical arm is bounded to a base and connected to a plier on the opposite side. The effect of clearance between all the kinematic parts is evaluated in order to assess mechanism degree of mobility in relation to the manufacturing process and components tolerances and geometry
Design characterization and automatic identification of character lines in automotive field
No full textDesign style and designer role get a great importance in the success of a new product launched in the marketplace. In particular, in the automotive domain a deep connection arises from the created shapes and the user’s emotional states. For this reason the designer role is commonly considered as twofold, being both a technician and an artist. The methodology proposed in this paper does define a design support tool for the definition of shapes in the automotive sector. This methodology is based on the study of the most relevant character lines. These lines are automatically selected by means of CAD tools and then analysed to identify mathematical relations between such lines and other geometrical features typical of the car. This part of the methodology originates a mathematical definition of the style that is associated to a qualitative definition of the style itself, which is based on data coming from user interviews analysed through statistical tools. Based on mathematical and qualitative definitions, a methodology to connect geometrical and emotional data has been developed. This methodology has been applied to a set of cars showing the results presented in this paper. Cars appearances and the emotional feelings they produce are linked together; some relationships are deduced to create a support tool in the early design phase
Using BCIS (brain computer interfaces) to evaluate emotional perception of passenger cabin design in virtual environments
No full textCabin interiors design can be considered one of the key enablers to face the societal challenges of future air transport. The cabin is the interface between the aircraft and the passenger and it strongly impacts on the user's experience. The quality of the travelling depends on the quality of the cabin. It could be measured through several and different dimensions, such as passenger's efficiency during and after the flight and the level of comfort that he/she experiences. Therefore, reading or working while flying or feeling restored when leaving the cabin should be the key performance indicators of a comfortable cabin. In this paper we propose an innovative design tool, that is an objective method to measure the affective impact that interior design provokes to passengers, with particular regards to seat design. Such method is based on the use of large virtual environments, coupled with BCIs (Brain Computer Interfaces). We propose a novel and original framework to correlate the BCIs affective scales to a set of comfort indicators. Experimental results are presented and discussed
Design Variations 2025. Design is Courage
No full text"Design is Courage" a cura di Michele De Lucchi, Francesca Balena Arista e Marco De Santi, coordinamento organizzativo Nicolò Chierichetti, video Francesco Clerici – espone una selezione di “oggetti ambientali” progettati dagli studenti del Laboratorio di Landscape and Interior-Spatial Design, tenuto dai docenti Michele De Lucchi, Francesca Balena Arista, Marco De Santi e Francesco Clerici, con Nicolò Chierichetti, Giada Boromello e Alessia Soressi, alla Scuola del Design del Politecnico di Milano.
Coraggio è progettare oltre le convenzioni. "Il designer che vogliamo - spiega Michele De Lucchi - è quello che sfida continuamente gli stili dominanti, che rifugge il bon ton ragionato, che sa coinvolgersi nelle sperimentazioni più ardite"."Design is Courage" exhibition, curated by Michele De Lucchi, Francesca Balena Arista and Marco De Santi, with organizing coordination by Nicolò Chierichetti and video by Francesco Clerici, shows a selection of "environmental object" designed by the students of the Landscape and Interior-Spatial Design Studio, held by Professors Michele De Lucchi, Francesca Balena Arista, Marco De Santi and Francesco Clerici, with Nicolò Chierichetti, Giada Boromello and Alessia Soressi, at the Politecnico di Milano School of Design.
Courage is designing beyond convention. “The designer we want – explains Michele De Lucchi – is the one who continuously challenges dominant styles, who eschews reasoned bon ton, who knows how to involve himself in the boldest experiments
Augmented and Virtual Reality in the Airport Control Tower
Get PDFAs a matter of fact, airports are considered as the bottleneck to increasing the capacity of the overall Air Traffic Management (ATM) system. While augmenting throughput in high performing airport operations, attention has rightly been placed on doing it in a safe manner. Many of the advances in airport operational safety come in the form of visualization tools for tower controllers.
The increasing interest in Synthetic Vision (SV) and Augmented Reality (AR) technologies has led various analysts to positively esteem the adoption of new tools enabling both pilots and controllers to seamlessly operate under Visual Meteorological Conditions and Instrument Meteorological Conditions.
This paper presents the motivations, the objectives, the proposed methodology and the expected impacts of the RETINA (Resilient Synthetic Vision for Advanced Control Tower Air Navigation Service Provision) project that has recently been granted by the SESAR (Single European Sky Air Traffic Management Research) Joint Undertaking.
The two-years exploratory research project will investigate the potential and applicability of SV tools and Virtual/Augmented Reality (V/AR) display techniques for the Air Traffic Control (ATC) service provision by the airport control tower
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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