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Permanent URI for this collectionhttps://hdl.handle.net/20.500.14288/3

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    Tactile perception of coated smooth surfaces
    (Institute of Electrical and Electronics Engineers Inc., 2023) 0000-0002-2443-8416; N/A; 0000-0002-6382-7334; Sezgin, Alperen; Er, Utku; Turkuz, Seniz; N/A; N/A; Department of Mechanical Engineering; Aliabbasi, Easa; Aydıngül, Volkan; Başdoğan, Çağatay; PhD Student; Master Student; Faculty Member; Graduate School of Sciences and Engineering; Graduate School of Sciences and Engineering; College of Engineering; N/A; N/A; 125489
    Although surface coating is commonly utilized in many industries for improving the aesthetics and functionality of the end product, our tactile perception of coated surfaces has not been investigated in depth yet. In fact, there are only a few studies investigating the effect of coating material on our tactile perception of extremely smooth surfaces having roughness amplitudes in the order of a few nanometers. Moreover, the current literature needs more studies linking the physical measurements performed on these surfaces to our tactile perception in order to further understand the adhesive contact mechanism leading to our percept. In this study, we first perform 2AFC experiments with 8 participants to quantify their tactile discrimination ability of 5 smooth glass surfaces coated with 3 different materials. We then measure the coefficient of friction between human finger and those 5 surfaces via a custom-made tribometer and their surface energies via Sessile drop test performed with 4 different liquids. The results of our psychophysical experiments and the physical measurements show that coating material has a strong influence on our tactile perception and human finger is capable of detecting differences in surface chemistry due to, possibly, molecular interactions.
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    How should my family assistant be?': initial perceptions about prospective and anticipated use of in-home virtual assistants in an emerging context
    (Taylor & Francis, 2022) Yargın, Gülşen Töre; Suner-Pla-Cerda, Sedef; Kulaksız, Mert; Department of Media and Visual Arts; Department of Media and Visual Arts; Günay, Aslı; Faculty Member; College of Social Sciences and Humanities; 150162
    Virtual Assistants (VAs) are at the forefront of state-of-the-art interactions for smart technologies at home. The prospective users' prior to use perception of such assistants is crucial to discover new possibilities for design and to be able to elicit positive user experiences. However, this has not been investigated in detail within family life in emerging contexts though demand for their ownership increases. This study scrutinises potential users' initial perceptions about the prospective and anticipated uses of VAs within family life in Turkey, as an emerging context, through in-depth interviews with 15 families. During the interviews, the participant families watched publicly available videos of four different VAs to elicit their perceptions. Results reveal that prospective users' perceptions and expectations focus heavily on VAs' possible effects on the family well-being, besides the concerns about usability and issues related to privacy, safety, and security. While proposing VAs for home use in such an emerging market, their potential positive effects on the family well-being should be promoted whereas perceived negative effects should be resolved by considering smartness, personality and trust dimensions. The study reveals relationships between these dimensions and perceptions of and expectations about VA use in home context in an emerging market.