1,721,116 research outputs found
Designer portfolio archetypes in design-intensive industries
No full textThe paper analyzes the designer portfolio configurations employed by firms, in design-intensive industries, to implement different product design strategies. Using the fuzzy set qualitative comparative analysis methodology, the paper explores how decorative lamps manufacturers, that first adopted the new LED technology, assembled their designer portfolios. The study shows that, in the early phases of LED lamps, four different designer portfolio archetypes were adopted by firms, two of them related to a product language divergence strategy and two to a product language convergence strategy: international design-star archetype, crowd design-innovator archetype, local ambassador archetype, international bridge archetype. These four archetypes are discussed, contributing to a better understanding of the relationship between product design strategies and designers’ management in design-intensive industries
Positioning Participant Engagement in Participatory Design
No full textThe approach of Participatory Design (PD) is the direct involvement of people as participants in the process of shaping design artifacts. Thus the facilitation of participant engagement is a priority for designers and researchers within this field. However, there are few reviews of how PD research interprets and employs the concept of engagement. In this paper, we shall first briefly introduce the related concepts. Then provides a systematic literature review of engagement on 81 PD related (PD, co-design, co-creation, etc.) publications, concerning its diverse perspectives, engaged participants, interpretations, and facilitation. We provide the attributes of participant engagement to further define this concept, as well as a guideline for the strategy of facilitating it. In the end, gaps within the literature have been pointed out as the challenges and opportunities for further work
How Do Design Narratives Play a Role in Cognitive and Social Processes? An Explorative-Systematizing Expert Interview
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Ni and Ni-Co La0.8Sr0.2Ga0.8Mg0.2O3 Infiltrated Cells in H2 and CH4/CO2 mixture
No full textLa0.8Sr0.2Ga0.8Mg0.2O3- (LSGM) based fuel cells infiltrated with different metal catalysts were fabricated and tested both in H2 and CH4/CO2 mixture. Ni, Co, Ni-Cu, Ni-Co LSGM impregnated powders were investigated for the dry reforming of methane reaction (DRM) (CH4+CO22CO+2H2). The catalytic activity for CH4 and CO2 conversion followed the order NiNi-Co>Co>Ni-Cu. Both Ni and Ni-Co catalysts, investigated versus time (50 hours) on stream of CH4/CO2=1.5 at 800°C, did not show any sign of deactivation indicating their stability toward coke deposition. Anyway, evidence of few carbon filaments were revealed by SEM micrographs and the carbon amount evaluated by TG-DTA analysis. Ni-LSGM and Ni-Co LSGM cells showed regarding electrochemical performance both in H2 and CH4/CO2 mixture in the 650-750°C temperature range
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Phygital experiences design
No full textIn questo mondo, governato dall’evoluzione delle tecnologie, il designer è chiamato ad agire come configuratore di un processo coinvolgente che veda l’interazione tra i due protagonisti di queste trasformazioni: esseri umani e macchine.
Per fare questo, è importante capire come mescolare i processi fisici e digitali all’interno di una nuova dimensione, che sempre
più sta emergendo: quella phygital. L’indagine ha sottolineato la necessità di considerare la dimensione culturale come uno dei principali fattori che influenzano l’interazione tra uomo e macchina.
La ricerca culturale è stata condotta su tre dimensioni: quella fisica, quella digitale e quella phygital.
Nella dimensione fisica, la componente culturale sembra essere evidente; in quella digitale viene fortemente ridotta; infine, per la dimensione phygital, la componente culturale sembra che giocherà un ruolo importante. L’indagine, attraverso l’analisi di casi di studio, porta a notare che all’interno di questo nuovo tipo di interazione è importante riposizionare l’utente al centro del processo.
L’interazione tra utenti e macchine assume combinazioni diverse e inaspettate, con la tecnologia che risulta incorporata in prodotti e spazi. Questi infatti sembrano robotizzati per via della componente tecnologica sempre più amplificata.
Con le nuove tecnologie, la struttura quasi scompare e gli elementi comunicativi e interattivi aumentano. Questo comporterà nuove regole in relazione a un rinnovato modo di utilizzo e una diversa accettazione da parte degli utenti.
Esplorando gli aspetti principali che un designer dovrebbe prendere in considerazione nella progettazione di esperienze phygital, lo scopo di questo lavoro è evidenziare nuove regole da considerare nel nuovo contesto.In today fast-changing environment, ruled by the evolution of technologies, the designer is asked to act as configurator of an engaging process that sees the interaction between two main protagonists of these transformations: humans and machines.
To do this, is important to understand how to mix physical and digital processes inside a new dimension that is emerging more and more: the phygital one. The investigation underlined the need to consider the cultural dimension as one of the main drivers that influence the interaction between humans and machines.
The cultural research was conducted among three dimensions: the physical, the digital and the phygital one.
In the physical dimension the cultural component appears to be evident; in the digital one was strongly reduced; finally, for the phygital dimension, the cultural component seems will play a major role.
The investigation, through case studies analysis, leads to noticing that inside this new kind of interaction is important to reposition the user at the center of the process. The interaction between users and machines takes on different and unexpected combinations, considering that the technology is embedded in products and spaces. In fact, these seem to be more robotic due to the increasingly amplified technological component.
With new technologies, the structure almost disappears, the technological components are mostly embedded, and the communicative and interactive elements increase. This will use different formats and will follow new rules in relation to a renewed way of use and a different acceptance by users. By exploring the main aspects that a designer should take into account in designing phygital experiences, the aim of this paper is to highlight new rules to be considered in this new context
GDC-based infiltrated electrodes for solid oxide electrolyzer cells (SOECs)
Full text linkIn this work, porous complex and metal-free cathodes based on a (La0.6Sr0.4) (Cr0.5Mn0.5)
O3 (LSCM) screen-printed backbone infiltrated with Ce0.9Gd0.1O2 (GDC) were fabricated for solid
oxide electrolyzer cells. GDC infiltration has been optimized by structural and microstructural
investigation and tested by electrochemical measurements in CO/CO2 mixtures. Infiltrated electrodes
with a non-aqueous GDC solution showed the best electro-catalytic activity towards CO2 reduction,
exhibiting a much lower polarization resistance, i.e., Rpol = 0.3 Wcm2 at 900 C. The electrochemical
performance of LSCM/GDCE in terms of Rpol is comparable to the best-performing Ni-YSZ cathode
in the same operating conditions (Rpol = 0.23 Wcm2
Assessment of abdominal fat distribution in obese patients: anthropometry versus computerized tomography.
No full textThe accuracy of waist to hip girth ratio (WHR) in assessing visceral/subcutaneous abdominal fat distribution has not yet been clearly established in the obese population. The purpose of the present study was to evaluate the relationship between WHR and visceral/subcutaneous fat distribution, both assessed by computerized tomography (CT), in a group of 28 obese patients (15 male, 13 female). Furthermore, 33 normal weight or slightly overweight subjects (23 male, 10 female) were studied as a control group. Obese subjects of both sexes were found to have higher values of WHR than non-obese; conversely visceral:subcutaneous fat area ratio (VSR) values did not differ significantly. Significant correlation between WHR and BMI was present both in males (r = 0.41, P < 0.01) and in females (r = 0.54, P < 0.01). In normal weight males significant correlations between WHR and visceral fat area or VSR were found. In obese males these correlations were much weaker. In normal weight females a significant correlation was found between waist circumference and visceral fat area, whereas in obese females no positive correlations were found between anthropometric measurements and CT indices of visceral fat distribution. In conclusion, WHR cannot be considered as a reliable index of visceral/subcutaneous fat distribution in obese patients, particularly if they are females
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