articles+ search results

RAPID tooling, BEARINGS (Machinery), GAS-lubricated bearings, ROTATIONAL motion, RAPID prototyping, and HYDRAULIC presses

• A new method of producing foil bearings was developed and tested. • A new application of MultiJet Printing technology is presented. • High accuracy of the bump foil geometry was obtained. • The developed method allows for a significant reduction in manufacturing costs. • The production of foil bearings does not require advanced mechanical processing. Foil bearings are aerodynamic gas bearings that are increasingly used in high-speed oil-free turbomachines, such as microturbines or turboexpanders. One of the barriers to the faster development of this type of bearings are production difficulties. This article discusses the consecutive stages in the development of a new method of manufacturing a bump foil – a key part of foil bearings. The three-dimensional (3D) printing technology called MultiJet Printing was used to make precise production tools. A new application of the chosen additive manufacturing technique made it possible to manufacture accurate forming tools, as described in the first part of the article. The forming tool allowed the bumps of the foil to be shaped without using a hydraulic or mechanical press. The next part of the article focuses on the experimental tests of the developed method. The tests were performed on three bump foils with different geometries. These tests were necessary to examine the repeatability of the shape of the bumps that were formed using the cold pressing. The results of the measurements are presented and discussed in the last part of the paper. Additionally, a numerical analysis was carried out and confirmed that all the steps of the plastic working process were performed correctly. The proposed method is very effective in forming foil bumps of practically any shape, with excellent accuracy and repeatability. The developed method allows for obtaining the desired shape of the bump foil in order to improve the static and dynamic properties of the foil bearing and the rotating system. In the near future, the proposed method can be considered for larger-scale production. [ABSTRACT FROM AUTHOR]

PRODUCT design, PARTICIPATORY design, RAPID prototyping, DESIGN services, INFORMATION design, and MACHINE learning

Machine learning (ML) and design co-support the development of intelligent products, which makes ML an emerging technology that needs to be further understood in design practice. However, the unusual attributes of ML and the transformations in the prototyping process frequently prevent most designers from continuous innovation. Thus, we invited designers to work together in a participatory design process and then developed ML-Rapid, an easy-to-use and flexible ML prototyping toolkit. ML-Rapid helps designers to rapidly empower their physical prototype with ML by invoking simple code while exploring more design possibilities. A method of applying the toolkit within the design process was also proposed to promote meaningful innovation opportunities. We evaluated our work in a project called Design for Information Product. The evaluation results showed that designers who were new to ML programming increased their understanding of ML after participating in the project, and ML-Rapid lowered the barrier to ML for designers by allowing them to explore design possibilities throughout the main steps of the ML process. [ABSTRACT FROM AUTHOR]

STUDENT projects, SOCIAL sciences education, RAPID prototyping, SOCIAL facts, SCIENCE students, and VISUALIZATION

Social science is witnessing tremendous growth of data available on the Internet regarding social phenomena; however, social science students are typically not prepared for managing the challenges and opportunities of analysing online data. One of the areas where this growth is especially important is in social studies of consumption. This article discusses a prototype of a visualisation tool intended to support the learning of netnographic analysis with computational tools. [ABSTRACT FROM AUTHOR]

science fiction prototyping, robot ethics, robot rights, law, ai, and Language and Literature

Science fiction narratives have not only influenced the way the majority of people imagine the future, but they have also shaped the general expectations for the technological development. This phenomenon has been called “science fiction prototyping” by Brian David Johnson. The prototype of a robot is created by science fiction works. Robots as artificially created entities are often presented as potential “members” of future society. Therefore, their legal status in imaginary reality is worth considering. The analysis of Blade Runner (1982) by Ridley Scott and I, Robot (2004) by Alex Proyas juxtaposes features that, according to the legal tradition, are most often attributed to moral subjects of legal protection with human-like features of robots. The interdisciplinary approach adopted in this study involves applying legal reasoning to the study of science fiction.

RAPID prototyping, MANUFACTURING processes, BIOMEDICAL engineering, SURFACE roughness, LEAD time (Supply chain management), and NEW product development

Rapid prototyping (RP) is one of the most imperative advanced manufacturing techniques. RP has attracted attention in the prototyping community due to its capability of reducing the lead time of the product development. It has emerged as an alternative method to fabricate component. RP has recently shown a wide range of engineering as well as medical applications. However, dimensional accuracy, surface roughness and part strength of the component fabricated by RP technology are poorer compared to that of traditional manufacturing process. The main emphasis of authors in this research work is to describe the methodology adopted by researchers. The novelty of this work lies in the fact that it provides a systematic approach to enable potential for persons from industry as well academic users to select suitable process parameters for fabricating the component. [ABSTRACT FROM AUTHOR]

design, utopia, alteration, prototyping, progetto, and alterazione

The purpose of this paper is to re-explore the relationship between utopia and architecture, trying first and foremost to challenge the way utopia has been conceived by architectural thought: i.e., as the prefiguration of a future seen as an ‘otherness’ distinct from the present, as far as the totality of its spatial, social, and political dimensions are concerned. Such vision – as we will argue – turns out to be deeply linked to a design logic of ‘projection’ and ‘prescription’; this, however, is not the only possible logic of design. Through a reflection upon some contemporary architectural practices, we will try to highlight a new horizon for design action, in which even utopia abandons its traditional ‘projective’ role and takes on a new meaning: rather than being the non-place of a possible future, utopia stands for what doesn’t have place in the present but can emerge from its alteration. Such notion of utopia as a form of ‘situated critique’, in a concrete space and time, helps to dig more deeply into the political potential of many contemporary forms of architectural and urban design.
Il proposito di questo contributo è tornare a esplorare la relazione tra utopia e architettura, cercando innanzitutto di mettere in questione il modo in cui l’utopia è stata concepita tradizionalmente nel pensiero architettonico: vale a dire, come la prefigurazione di un futuro concepito come alterità rispetto al presente, nella totalità delle sue dimensioni spaziali, sociali e politiche. Tale visione - come si cercherà di illustrare - è intimamente legata a una certa logica “proiettiva” e “prescrittiva” che, tuttavia, non è l’unica logica possibile del progetto. Attraverso una riflessione su alcuni modi del progetto di architettura contemporaneo, si cercherà infatti di mettere in evidenza una nuova logica progettuale, in cui anche l’utopia abbandona il suo carattere proiettivo tradizionale per acquisire un nuovo senso: non più il non-luogo di un futuro possibile, bensì ciò che non ha luogo nel presente e che può tuttavia emergere dalla sua alterazione. Questa nozione di utopia come “critica situata” concretamente in uno spazio e in un tempo aiuta a comprendere più in profondità il potenziale politico di molte delle forme contemporanee di progetto architettonico e urbano.

MELT spinning, RAPID prototyping, POLYMER melting, 3-D printers, THREE-dimensional printing, and POLYMERS

Copyright of Polimery is the property of Industrial Chemistry Research Institute and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

On 26 July 2013, the United Nations launched the Free & Equal campaign in Cape Town, South Africa, to mark the global commitment to end gender discrimination. This event can be positioned in the "fourth wave of feminism" referred to by certain leading feminist scholars (for example Gouws 2010). However, while multiple disciplinary discourses herald the progress with regards to women's liberation, notably pertaining to gender identities, they illuminate that in spite of winning a number of battles along the way, the wars on exclusion, discrimination, patriarchy and misogyny have not yet ended. This article aims to reflect on the current status quo of feminism by drawing on the work of seminal communication scholars, such as Herbert Mead, Irving Goffman and Serge Moscovici whose work on individual and social identity sheds light on the processes of gender prototyping that are rapidly changing. At present, the United Nations recognises 71 gender identities, while hegemonic heterosexual domination and discrimination still persist regardless of legislation and activism aimed at inclusion and non-discrimination of all gender identities. An overview of current research findings illuminates the need for employee activism and the development of representative woman gender prototypes in particular, to harness cultures of inclusivity and non-discrimination in the workplace. [ABSTRACT FROM AUTHOR]

literary mapping, geospatial prototyping, scholarly communication, 'paradise lost', History of scholarship and learning. The humanities, AZ20-999, Electronic computers. Computer science, and QA75.5-76.95

By focusing on the process of building 'A Map of Paradise Lost'—a geospatial humanities text-to-map project that visualizes the locatable places in John Milton’s 'Paradise Lost'— this paper addresses the question “why map literature?” and demonstrates how the process of research prototyping is in itself a form of knowledge production. Through a series of 'prototyping moments', we address how the different steps involved in building a geospatial humanities project can produce new knowledge about the fields it relates to: literary studies and digital humanities. The prototyping moments make arguments that advance our understanding of Milton’s 'Paradise Lost', approaches to data visualization for cartographic comparison in and beyond DH, and models for interdisciplinary collaboration. Résumé En se concentrant sur le processus de construction 'd’une Carte du Paradis Perdu' – un projet d’humanités géospatiales qui visualise, dans une carte à partir du texte, les places localisables dans le 'Paradis Perdu' de John Milton – cet article aborde la question «pourquoi une littérature cartographique?» et démontre comment le processus de prototypage de recherche est en soi une forme de production de connaissances. A travers une série de 'moments de prototypage', nous abordons comment les différentes étapes impliquées dans la construction d’un projet d’humanités géospatiales peuvent produire de nouvelles connaissances concernant les domaines relatifs à ce sujet: études littéraires et humanités digitales. Les moments de prototypage présentent des arguments qui améliorent notre compréhension du 'Paradis Perdu' de Milton, des approches de visualisation des données pour une comparaison cartographique «à l’intérieur» et «au-delà» des humanités digitales ainsi que des modèles pour une collaboration interdisciplinaire. Mots-clés: cartographie littéraire; prototypage géospatial; communication savante; 'Paradis Perdu'

lms, ims-ld, elearning platform, designing an ims-ld, nosql, symfony framework, disciplinary information space, Computer engineering. Computer hardware, TK7885-7895, and Science

This work is mainly based on the prototyping of a disciplinary information space for a new LMS. Our work is first to think about the conditions for creating a real LMS between learners and teachers. We have chosen to base ourselves on the hybridization between four learning theories as the basis for teaching this LMS, namely traditional pedagogy, behaviorism, cognitivism and social constructivism. These pedagogies have already proven themselves, mainly in classroom learning situations. The LMS consists of different activity spaces for teaching and learning activities. We limit ourselves in this work to the prototyping of disciplinary information space for a new LMS based on IMS-LD, NoSQL MongoDB database, and Symfony framework.

E-textiles, modular rapid prototyping toolkit, E-textile Bonder, Textile Prototyping Lab, adhesive bonding technology, and General Works

We present a novel E-textiles toolkit that can be used in the rapid prototyping of electronic textiles during the research and evaluation phase. The modular, Arduino-compatible toolkit incorporates various sensors and control and communication modules. The needs of fashion professionals have been considered during the conception of the toolkit, which was developed in close cooperation with partners from textile research institutes, the textile industry, art schools and design. After the initial manual prototyping, the toolkit modules can be directly transferred to reliable industrial integration using advanced machinery. To achieve this, we developed the E-textile Bonder, a machine capable of mechanically and electrically connecting modules to textiles with integrated conductors. This paper gives an overview of the toolkit as well as the design considerations discussed and implemented during the cooperation with textile industry stakeholders. Furthermore, the integration process with the E-Textile Bonder is described, and its advantages over other technologies are discussed.

ensino de jovens e adultos, heurísticas, validação, Information technology, and T58.5-58.64

Este artigo apresenta os processos de desenvolvimento das fases de prototipação, testes e validação de um instrumento avaliativo inserido no contexto da educação de jovens e adultos, na fase alfabetizadora, em decorrência de perceber como o design educacional poderia contribuir para melhorar a experiência dos usuários prioritários – professores e alunos. Os requisitos do projeto foram construídos por meio da metodologia e das ferramentas utilizadas pelo Design Thinking, dentre elas cartões de insight e critérios norteadores. Na fase de prototipação foram utilizados os níveis recomendados por Vianna & Vianna (2012), nos testes e validação foram utilizados instrumentos heurísticos – Principios Heuristicos de Nielsen e Molich (1990) e Leis da Simplicidade de Maeda (2006). ***** This article presents the development processes of the prototyping, testing and validation phases of an evaluation instrument inserted in the context of youth and adult education, in the literacy phase, as a result of realizing how educational design could contribute to improving the experience of priority users - teachers and students. The project requirements were built using the methodology and tools used by Design Thinking, including insight cards and guiding criteria. In the prototyping phase, the levels recommended by Vianna & Vianna (2012) were used, in the tests and validation heuristic instruments were used - Heuristic Principles of Nielsen and Molich (1990) and Simplicity Laws of Maeda (2006).

PROJECT management, NEEDS assessment, CHARTS, diagrams, etc., and DYNAMIC models

In this work, based on the results obtained concerning the analysis and the needs of our project which concerns the design and development of an e-Learning project management system, we present the modeling stage with UML. Based on one hand, on two diagrams: class diagram and use case diagram, for static modeling and on the other hand, based on three diagrams: activity diagram, sequence diagram, diagram transition state for dynamic modeling. Finally, we offer examples of models for our project. [ABSTRACT FROM AUTHOR]

TRAFFIC engineering, TRAFFIC congestion, TRAFFIC flow, SMART cities, TRAFFIC monitoring, TECHNOLOGICAL progress, and WALKABILITY

With the tremendous technological progress and the widespread use of a variety of technologies, we note how smart cities are providing services efficiently by using technologies. The aim of this project is to build a Smart Traffic Control System (STCS) to facilitate and optimize traffic flow, minimize traffic congestion, and reduce the waiting time by detecting the density on each street. This work has been carried on four phases. Firstly, collecting data by a questionnaire and we received 331 responses. Secondly, using Proteus simulation. Thirdly, building a low fidelity prototype, and fourthly: building the STCS model by using hardware (Arduino tools) and software (Arduino Software IDE). Finally, we learned how to build a system and we recommend using such a system in busy roads to reduced congestion and making traffic flow more efficient. [ABSTRACT FROM AUTHOR]

prototyping, user interface, information system, internship, Mathematics, QA1-939, Electronic computers. Computer science, and QA75.5-76.95

Human Resources (HR) is one of the important things that determines the success of the services of a company, one of the things done to prepare a good HR is to launch a program of Job Training (PKL) or also known as an internship. PT.Gramedia Asri Media became one of the companies implementing the internship program, but the existing internship program was still carried out manually by distributing information to tertiary institutions via email. This journal aims to create an apprenticeship information system design by developing a system using the prototyping method so that the apprenticeship process can be carried out in a single system from the dissemination of information to the resolution of administrative problems related to finance and the need for an apprenticeship approval document. The system development method used therein is the prototyping method that starts from analyzing user needs to creating a User Interface (UI) that is easily understood by the user. The apprenticeship information system is expected to make the apprenticeship process more effective both in registering and processing the internship data contained therein.

prototyping, human-robot interactions, user studies, social robotics, robot companions, and Technology

This paper presents a proof of concept prototype study for domestic home robot companions, using a narrative-based methodology based on the principles of immersive engagement and fictional enquiry, creating scenarios which are inter-connected through a coherent narrative arc, to encourage participant immersion within a realistic setting. The aim was to ground human interactions with this technology in a coherent, meaningful experience. Nine participants interacted with a robotic agent in a smart home environment twice a week over a month, with each interaction framed within a greater narrative arc. Participant responses, both to the scenarios and the robotic agents used within them are discussed, suggesting that the prototyping methodology was successful in conveying a meaningful interaction experience.

mandibular reconstruction, rapid prototyping, stereolithographic model, Dentistry, RK1-715, Surgery, and RD1-811

This article documents four mandibular reconstructions performed using free fibula flaps. CT scan DICOM (Digital Imaging and COmmunication in Medicine) files were obtained in order to print stereolithographic models of the mandible, and in one case cutting guides for fibular osteotomies. One case study details the treatment a cancer recurrence on a right emimandibulectomy. Because of a lack of access to previous CT scans, the left part of the mandible was mirrored to obtain an accurate 3D model. In one case, due to the young age of the woman, a double barrel fibula flap was used. All cases resulted in satisfactory chewing function and aesthetic outcome, with no flap failures. The report concludes that Virtual Planning and Rapid Prototyping are helpful as they reduce costs and intraoperative times while simultaneously improving surgical precision.