Browsing by Author "Mikkonen, Jussi"

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The Cross-section of a Multi-disciplinary Project in View of Smart Textile Design Practice
(2018) Townsend, Riikka; Karttunen, Antti; Karppinen, Maarit; Mikkonen, Jussi
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
We describe the development path of a smart textile design method, stemming from a collaborative multi-disciplinary project, with three university departments: chemistry, design and electrical engineering. While the project focus was not originally on textiles, the needs for flexible semiconducting materials led to experiments with a zinc oxide(ZnO) semiconductor deposited over cotton substrate, thus shifting the focus towards textiles. A series of exchanges and actions between the three disciplines raised the awareness of the need for textile design methods regarding electric materials. Taking this as a starting point for generating new knowledge, drawing from the strengths of both textile design and engineering, an approach to develop smart textiles was developed. We conducted preliminary evaluation of this approach, called Teksig method, in three contexts related to the smart textile design practice: exploratory and creative collaboration, smart textile design, and technical measurements. To this end, a workshop was organised, as well as conducting a series of measurements using a mechanical test rig, and designing smart textiles with different types of electroconductive yarns. While the initial findings suggest usefulness, however more thorough examination is needed. In this paper, we discuss the overall project, and identify the key stages in the interdisciplinary collaboration, in terms of textile design practice, while reflecting on the outcomes, which enabled paving the way for interwoven design and scientific knowledge embedded into smart textile design practice
The cross-section of a multi-disciplinary project in view of textile design
(2017-09) Townsend, Riikka; Karttunen, Antti; Karppinen, Maarit; Mikkonen, Jussi
A4 Artikkeli konferenssijulkaisussa
We describe the development path of a smart textile-design method, stemming from a collaborative multi-disciplinary project, with three university departments: chemistry, design and electrical engineering. While the project focus was not originally on textiles, the needs for flexible semiconducting materials led to experiments with a zinc oxide(ZnO) semiconductor deposited over cotton substrate, thus shifting the focus towards textiles. A series of exchanges and actions between the three disciplines, raised the awareness of the need for textile-design methods regarding electric materials. Taking this as a starting point for generating new knowledge, drawing from the strengths of both textile design and engineering, an approach to develop smart textiles was developed. In this paper, we discuss the overall project, and identify the key stages in the interdisciplinary collaboration, in terms of textile design practice, while reflecting on the outcomes, which enabled paving the way for interwoven design and scientific knowledge embedded into smart textile design practice.
A design approach on tactile gloves for commercial usage in the video game industry
(2015) Zeitler, Philip
School of Arts, Design and Architecture | Master's thesis
Over more than three decades, the video game industry has grown to become a multi-billion dollar industry. Users of all ages dedicate countless hours of their valuable free time to engage themselves in a flourishing world of adventure and entertainment, enabling them to escape their modern daily routines. With giant leaps in hardware and software development, the industry has managed to take gamers from a world of monotone pixel jumping to incredibly complex and realistic environments. Video games give users the ability to become warriors, heroes, drivers or strategists that can either challenge or cooperate with players from across the world in a community based on mutual interests. But the industry seems to be slowing down. The big players in the field, basing their new products solely on more realistic graphics, do not live up to the consumers expectations for innovation. It is the realism that makes the player want to achieve more. But what exactly is realistic, when considering that you are pushing and pulling plastic buttons on a gamepad? A trend that can be observed, is that the industry is slowly moving into virtual reality with the introduction of new products by start-ups such as the Oculus Rift, providing glasses capable of tracking your head movement or the Virtuix Omni, allowing the use of your body to freely move through a virtual environment. These products gained a lot of attention at the latest game conventions and although they still encounter minor technical problems, they are powerful tools for the gaming world, especially when working together. The player is now capable of traveling through fictional environments by foot and able to freely look around, but what about the hands? When being fully engaged in an imaginative world, the user wants to further interact with the environment by grabbing objects or opening doors for instance. This thesis investigates the idea of incorporating the user physically into the game, aiming for the development of a functional tactile glove prototype providing users with an even more immersive gaming experience. Tactile gloves use various mechanisms to create the illusion of grabbing actual objects in a virtual environment. This goes as far as being capable to feel the density of an object. In order to identify the weaknesses and opportunities with tactile gloves, various tools such as literature, expert insights, and consumer studies are utilized. The data collected and work conducted throughout this process is evaluated and discussed critically to obtain the most adequate and suitable solution. Various tactile gloves exist already, however the most sophisticated glove on the market is priced at over $39,000 and is mainly used at research institutions. The overall aim will be to create an affordable solution for commercial usage in the gaming industry.
Flexible Thermoelectric ZnO-Organic Superlattices on Cotton Textile Substrates by ALD/MLD
(2017-06) Karttunen, Antti J.; Sarnes, Liisa; Townsend, Riikka; Mikkonen, Jussi; Karppinen, Maarit
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
The thermoelectric properties of both pristine ZnO and ZnO-organic superlattice thin films deposited on a cotton textile are investigated. The thin films are fabricated by atomic layer deposition/molecular layer deposition, using hydroquinone as the organic precursor for the superlattices. The resulting thin-film coatings are crystalline, in particular when deposited on a textile substrate with a thin predeposited Al2O3 seed layer. The thermoelectric properties of the ZnO and ZnO-organic superlattice coatings are comparable to those for thin films deposited on conventional inorganic substrates; Al doping can be employed to further improve the thermoelectric properties. The ZnO-organic superlattice thin films moreover show enhanced resistance to mechanical strain. Due to the higher flexibility and lower thermal conductivity in comparison to pristine ZnO thin films, the ZnO-organic superlattice thin films are a possible material platform for flexible thermoelectrics that can be integrated in textiles and applied in wearable electronics.
Frequency-Based Design of Smart Textiles
(2019) Mikkonen, Jussi; Townsend, Riikka
A4 Artikkeli konferenssijulkaisussa
Despite the increasing amount of smart textile design practitioners, the methods and tools commonly available have not progressed to the same scale. Most smart textile interaction designs today rely on detecting changes in resistance. The tools and sensors for this are generally limited to DC-voltage-divider based sensors and multimeters. Furthermore, the textiles and the materials used in smart textile design can exhibit behaviour making it difficult to identify even simple interactions using those means. For instance, steel-based textiles exhibit intrinsic semiconductive properties that are difficult to identify with current methods. In this paper, we show an alternative way to measure interaction with smart textiles. By relying on visualisation known as Lissajous-figures and frequency-based signals, we can detect even subtle and varied forms of interaction with smart textiles. We also show an approach to measuring frequency-based signals and present an Arduino-based system called Teksig to support this type of textile practice.
Hand Puppet as Means for eTextile Synthesis
(2019-03-17) Pouta, Emmi; Mikkonen, Jussi
A4 Artikkeli konferenssijulkaisussa
To situate the skills of the textile designer within the HCI-process, we present a case of a hand puppet with a purpose-woven smart textile pattern. The qualities found in traditional textile design are tacitly synthesized into the eTextile-design process. We see this mentality as having a natural dialogue with HCI-practice. The hand puppet consists of two layers: an inner sensor glove, designed to detect the movements of the user’s fingers, and a woven outer layer that has a touch sensitive user interface integrated into its woven structure. The two interfaces can be operated simultaneously by two separate users; an adult and a child. Our interest is to understand better how the traditional textile design variables can be utilized in the user interface and -experience design. We aim towards the synthesis of woven eTextile design, consisting of user interface design, pattern design, sensor structure design and textile layout design.
Implementing management control systems post-merger
(2023) Mikkonen, Jussi
School of Business | Bachelor's thesis
In search for Avanto- A collection for the cold-water scuba divers with an infrared heating system
(2015) Aarnio-Juurinen, Aino
School of Arts, Design and Architecture | Master's thesis
The aim of this thesis was to design a modern scuba diving suit collection with an infrared heating system for the recreational cold-water scuba divers. Expertise of different divers, medical professionals and diving apparel manufacturers was utilized in the design phase. The objective of this thesis was to examine how divers’ safety could be improved with new technology and how to develop the divers’ thermal comfort in a cold-water environment. Therefore, one of the main research questions was how to design a timeless, safe, comfortable and great scuba diving suit collection. This thesis focused on the scuba diving equipment and history, concept creation, definition of a suitable thermal insulation and also on the stages of the collection design. The research methods consisted of field research, interviews and observation. Literature was also used as one source of information. The expectations of divers were taken into account in terms of the functionality of the clothes. The outcome of this thesis consists of three different outfits; A dry suit, an infrared heated mid-layer and a base-layer. The most recent technologies and the latest technical materials were utilized in this thesis project. For instance, the divers no longer have to carry a separate battery canister with them since the infrared heating system receives its power wirelessly from the 3D-printed dive weight, into which the necessary electronic components are integrated. In addition, the infrared panels are placed to the mid-layer so that the garment is comfortable to wear and the suit also functions without the active heating system. All the products have been tested and they function in a cold-water environment. In addition to the products, the thesis also includes a technical collection catalog and a written research part. The production part of this thesis has been created together with an Industrial and Strategic Design student, Visa Kupias. The final outcome has been exhibited in the Wearable Technology and eTextile Design exhibition at the EU parliament in Brussels on 17th-20th November 2014.
Lääkeaineannostelijan muotoilu
(2017) Salonen, Minna-Maria
School of Arts, Design and Architecture | Bachelor's thesis
On The Teachers Role in Interactive Prototyping
(2017-04-14) Mikkonen, Jussi
A4 Artikkeli konferenssijulkaisussa
The industrial design students are increasingly involved with the development of functional interactable prototypes. There is complexity in both the concept generation and the implementation, something that the design students need to be able to cope with. We approach the prototyping in the light of representing a design idea, moving from concept towards a physical manifestation, and discuss the concept-imposed minimum towards the complexity of a prototype. While a combination of methods, such as cardboard-mockups, and wizard-of-oz can be used to evaluate simpler design ideas, they simply fall short with a complex device, as there are too many things happening. Thus, an approach is needed for developing complex prototypes. We examine five different prototypes, and discuss the role of the teacher in each. Drawing from the concept, prototyping practice, and the required complexity, we suggest stages of complexity for the development, and a more active participation from the teacher.
Opportunities with Multi-Layer Weave Structures in Woven E-Textile Design
(2024-11-10) Pouta, Emmi; Mikkonen, Jussi; Salovaara, Antti
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Most textiles in day-to-day use are products of weaving. The versatility of this manufacturing technique, which readily supports a multi-layered structure, inclusion of several yarn types, malleability and other valuable characteristics, has attracted attention from HCI researchers intrigued by its potential to expand the interaction capabilities of e-textiles. Research nonetheless has barely scratched the surface of the wealth of weaving techniques and woven structures available. Therefore, a design-research project anchored in practice investigated how touch-sensitive e-textiles’ capabilities might be enriched via advanced multi-layer weaving techniques. The research process, which drew inspiration from literature both on textile design and on woven e-textiles, produced 25 distinct e-textile samples. Results from evaluating the structural properties, electrical capabilities and overall utility of each point to numerous unexplored opportunities from woven multi-layer e-textiles. Even holding potential for entirely new forms of interaction, these represent promising starting points for in-depth investigation.
Potential Benefits of Wearable Technologies on Preschooler Outdoor Safety
(2014-08-19) Toromanoff, Silvain
Perustieteiden korkeakoulu | Master's thesis
This research takes interest in the dangers surrounding preschoolers’ excursions outdoors in Finland and aims at proving that wearable technologies have potential to improve the situation. In a first step, the situation regarding traffic accidents is analyzed from a general standpoint and then with a specific focus on children. It stems that Finland’s situation has room for improvement – mainly because other countries in similar conditions and development states achieve significantly better results. Furthermore, it is clear that children are especially vulnerable to accidents because of their physiological and cognitive characteristics as well as harsh weather conditions during a large part of the year. Wearable technologies are then introduced, both from a historical and practical point of view, highlighting the ever-growing potential they hold for children safety, and presenting previous studies with similar interests. This theoretical analysis is then used as a basis for practical ideation to develop concepts improving children’s safety thanks to wearable devices. Combining interviews of preschool teachers and an ideation workshop, a number of concepts are developed and refined, offering leads for practical implementation of safer solutions than the current ones. In a next step, these concepts are stripped down to their very core in order to design a functional proof of concept as simple as possible. A prototyping phase was then carried out based on this design, yielding a working device aiming at creating a fun experience for the children while making them more visible to passing drivers and preventing any unexpected behavior. This prototype validated the core concepts and proved the potential of wearable technologies in the field of children safety, as it addressed several of the main challenges currently responsible for the dangerous situations and their deadly consequences, such as the lack of attention from children or the lack of visibility for drivers. In conclusion, this prototype enabled to prove that wearable technologies could definitely improve the safety of preschoolers in Finland, and the concepts developed along this study offer several leads as to how to practically implement efficient new solutions.
Prototyping New Interaction Style - a case study on designing deformable mobile devices
(2012) Hsieh, Yi-Ta
School of Arts, Design and Architecture | Master's thesis
This is a project-based thesis work initiated by Nokia Research Center. The goal of this project is to investigate deformable user interfaces (DUIs) on mobile devices. Following background studies and identification of the research questions, various design methodologies were developed to encounter the new interaction style. An exploratory experiment was designed to study the role of form in DUI design. The purpose is to find insights from people’s instinct and tactile sense and to study dimensional properties on flexible materials. Another workshop was arranged so that experts in design and engineering experienced a whole design process for bridging form factors and applications with interaction. During the workshop, the context which is the detaching of touch interface users with the immediate environment was studied. Through these two activities, a set of design cues for deformable mobile devices was thus derived. The method of research through design has been the backbone of this thesis work. Numerous prototypes were implemented as physical representation of the hypotheses in each stage. At last, a working prototype was constructed. Consisting of a flexible mobile device and an information system, the prototype enables deformable interaction with information distributed in the space. A set of user test was conducted accordingly. Through these design activities, the role of form factors in mobile DUIs was examined. Moreover, it can be concluded that physical deformation in DUIs results in more engaging experiences than touch interfaces.
Sähköajoneuvon latauspisteen muotoilu suomalaiseen kaupunkiympäristöön
(2013) Örnberg, Simon
School of Arts, Design and Architecture | Master's thesis
Tekes on perustanut EVE –nimisen työohjelman, jonka päätavoite on kasvattaa sähköiseen liikenteeseen liittyvää liiketoimintaa Suomessa. Yksi EVE:n testiympäristöistä on nimeltään Pääkaupunkiseudun sähköinen liikenne, jonka rinnakkaistutkimushankkeena toteutetaan eSini –niminen projekti. eSinin päätavoite on olla mukana suunnittelemassa pääkaupunkiseudun sähköajoneuvojen latausinfrastruktuuria. Aalto-yliopiston muotoilun laitos on mukana tässä hankkeessa tuomassa mukaan käyttäjälähtöisen näkökulman. Tämän opinnäytteen tavoitteena on tutkia ensimmäisen sukupolven latauspisteiden käyttäjiä ja heidän mieltymyksiään, sekä esittää tutkimusaineiston pohjalta konsepti latauspisteestä. Tutkimustyön pohjana on kirjoitettu aineisto, omakohtaiset havainnot sekä asiantuntijoiden haastattelut. Muotoilutyö sisältää konseptointivaiheen ja prototyypin valmistuksen. Sähköautoilun kehittämisellä varaudutaan polttomoottoriliikenteen mukanaan tuomien ongelmien, kuten öljyn loppumisen ja ilmansaasteiden ehkäisyyn. Sähköautoilu on tehnyt tuloaan useaan otteeseen, mutta se on teknologian ollessa rajoittunutta jäänyt polttomoottorien jalkoihin. Nyt Suomen sähköautoilua ollaan kehittämässä, ja sen tärkeänä osana on latausinfrastruktuurin kehittäminen. Tällä hetkellä latauspisteitä on muutama ja sähköautoja liikenteessä pari sataa. Uuden teknologian omaksumisessa avainasemassa ovat ns. aikaiset omaksujat, jotka myös muodostavat tämän työn käyttäjäryhmän. Sähköajoneuvoja ja lataustapoja on monia erilaisia. Tämä työ on tehty julkiseksi latauspisteeksi, joka toimii pistokelatauksella. Latauspisteen muotokieli on valittu sopimaan suomalaiseen kaupunkiympäristöön. Laitteen käytettävyys on suunniteltu nopeaksi ja mahdollisimman helpoksi, jotta se sulautuu toimintana luontevaksi osaksi pysäköintiä. Latauspisteeseen on suunniteltu käyttöliittymä, joka sisältää käyttäjän tunnistautumisen, latauksen maksun ja käyttäjän opastuksen. Nämä ominaisuudet pohjautuvat elektroniseen tunnistautumiseen RFID-tunnisteella. Työssä on myös otettu kantaa latauspisteen turvallisuuteen, esteettömyyteen, ympäristöystävällisyyteen, opastukseen, valaistukseen sekä asennukseen ja huoltoon. Latauspisteen asennuskohteista parhaaksi on katsottu sellainen tilanne, jossa samasta latauspisteestä voi ladata useampi pysäköity ajoneuvo samanaikaisesti. Tämän perusteella latauspiste on suunniteltu kaksipuoleiseksi. Mitoitus määräytyi sen sisään tulevien komponenttien koon mukaan sekä käyttäjien keskimääräisen pituuden mukaan. Latausmahdollisuus suunniteltiin kahdelle erityyppiselle pistokkeelle. Latauspisteestä valmistettiin prototyyppi metallipajalla. Latauspisteen prototyypissä on umpinainen alaosa, jossa sijaitsee sähkökomponentit sekä perforoitu yläosa, jossa on latauspistorasiat, käyttöliittymä ja valaistus. Suunnittelun tukena on käytetty erilaisia tietokoneohjelmia, joissa on laadittu kattava havainne- ja mitoituspiirustukset. Latauspiste on minimalistinen, mutta perforointikuvioinnilla tai värityksellä muunneltavissa. Työssä on kiteytetty tietoa latauspisteen käyttäjien tarpeista ja kaupunkiympäristöön suunniteltavista tuotteista. Ympäristöystävällisyyden, helppouden ja edullisen valmistettavuuden takaamiseksi mitoitus on mahdollisimman pieni ja lataustoiminnot yksinkertaisia.
Serendipity as a Catalyst. Knowledge Generation in Interdisciplinary Research
(2019-04-01) Townsend, Riikka; Mikkonen, Jussi
A4 Artikkeli konferenssijulkaisussa
Our paper discusses the design- led processes in a project starting as multidisciplinary, focusing on three serendipitous cases that influenced the outcomes and the textile- design- research path taken in the overall project. The work presented here revolved around semiconductive cotton, suitable for textile design, and examines it from the design team perspective. This paper identifies and discusses three cases, as they had considerable weight on the project path. In order to understand these cases, we evaluated them based on a model for a serendipitous experience. The follow- ups to the serendipitous connections gave empowerment to the design research team, increasing their ownership of the research results. Relaxing boundaries between disciplines and varying routines have been highly relevant factors in the new knowledge generation. Ability to perform a consented and significant diversion to the research path was crucial for reacting to the serendipitous discovery and establishing the research space of the interdisciplinary project.
Shift: an interactive device for demonstrating light guides
(2014) Kiviharju, Sami
School of Arts, Design and Architecture | Master's thesis
Light guides are clear optical components used to transfer light with minimal loss by means of total internal reflection. In addition to tunneling light from one place to another, light guides can be used to divide, combine or disperse light. Different types of light guides are used in various application including fiber optics, backlights for liquid crystal displays, automotive lighting and electronics illumination. The thesis focuses on the development of an interactive demonstration device which purpose is to introduce light guides in an engaging way. The written report is meant to support the physical model in explaining the topic by providing information about light guides to the reader. This is done by first introducing the different application areas for light guides and then explaining the working mechanisms of light guides with illustrations. The production part of the thesis is completed within a six-month internship in the prototyping team at Microsoft. During the project, prototyping is first used as an empirical research method and later in an iterative design process to develop the physical model. Theoretical research is conducted on the topics of light guides and optics to support learning and to provide a theoretical context for the thesis. As a result, a demonstration device comprising of two LED-lit light sources, six detachable light guide modules and a light intensity controller, is presented. The physical deliverables also include a storage box designed for the device and a booklet which illustrates the use of light guides in the light guide modules.
Style migration: evidence from the European equity markets
(2012) Mikkonen, Jussi
School of Business | Master's thesis
PURPOSE OF THE STUDY This paper examines how migration contributes to value and size premiums in stock returns. Migration is defined as stocks moving from one valuation or size category to another. Specifically, this thesis is the first to replicate the methodology of Fama and French (2007a) using European data. Fama and French (2007a) find that migrating stocks form most of the size and value premiums in the US. Therefore, European data gives the opportunity to provide an out-of-sample test for the Fama and French (2007a) study. The secondary objective of this study is to predict migration using the contextual fundamental analysis method of Piotroski (2000). As Piotroski (2000) is able to show that investors can enhance value investing strategies, it is interesting to test whether the same phenomenon drives migration. DATA The sample used in this study consists of companies from over 23 countries in Europe between 1980 and 2011. The total amount of firm-year observations is 52,154. Accounting data is acquired from the Worldscope database using Thomson One Banker and market data from Datastream. To be able to fully replicate the Fama and French (2007) method supplemental data for buyouts (35,255 observations during 1980-2011) from SDC Platinum is acquired. RESULTS The results of this thesis indicate a significant value effect in Europe during 1980-2011. Further, migration has a significant contribution to the value effect. Additionally, size effect is positive in 1980-1988 but seems to disappear after 1988, which is in line with previous research (van Dijk 2011). In accordance to Chen and Zhao (2009), the size effect appears to be positive if small growth stocks are omitted from the portfolios. Migration also has a major role in the formation of the size effect. The fundamental analysis method of Piotroski (2000) is able to enhance portfolio returns, although the benefits are mainly concentrated on small firms. However, the results concerning the method's ability to predict migrating stocks are mixed. Firms in a very good financial condition have a higher probability to migrate favourably than firms in a poor financial condition.
Termosähköisten oksidimateriaalien atomikerroskasvatus tekstiileille
(2015-12-15) Sarnes, Liisa
Kemian tekniikan korkeakoulu | Master's thesis
Termosähköisillä materiaaleilla voidaan muuntaa lämpötilaeroja ja hukkalämpöä sähköenergiaksi. Tämä diplomityö käsittelee termosähköisiä oksidimateriaaleja ja niiden soveltamista yhteen tekstiilien kanssa. Kirjallisuusosan tarkoituksena on kartoittaa p-tyypin termosähköisiä oksidimateriaaleja ja etsiä potentiaalisia sovelluskohteita termosähköisille ohutkalvomoduuleille. Lisäksi kirjallisuusosassa keskitytään atomikerroskasvatustekniikan (ALD) soveltamiseen tekstiileille. Kokeellisessa osassa tavoitteena on kasvattaa kiteisiä oksidiohutkalvoja tekstiileille ja tutkia kalvojen ominaisuuksia. Tarkoituksena on selvittää sopivat kasvatusparametrit ja se, miten tekstiilisubstraatti vaikuttaa materiaalin ominaisuuksiin. Lisäksi tutkitaan hybridisuperhilarakenteen ja seostamisen vaikutusta oksidin ominaisuuksiin. Oksidimateriaalit ovat potentiaalinen vaihtoehto korvaamaan tällä hetkellä käytetyt raskaisiin metalleihin pohjautuvat termosähköiset materiaalit, koska ne kestävät korkeita lämpötiloja ja ovat ympäristöystävällisiä. Lisäksi ne mahdollistavat termosähköisten ohutkalvojen kasvattamisen esimerkiksi ALD:llä. Useille n-tyypin termosähköisille oksidimateriaaleille on jo kehitetty melko vakiintuneet ALD-prosessit, mutta p-tyypin materiaalit vaativat lisää tutkimusta. Potentiaalisimpia p-tyypin termosähköisiä oksidimateriaaleja kasvatettavaksi ALD:llä ovat kupari- ja nikkelioksidit. Ohutkalvomoduulit tuovat mukanaan monia etuja, kuten pienen tilavuuden ja korkean tehotiheyden. Niiden potentiaalisiin sovelluskohteisiin kuuluvat muun muassa erilaiset jäähdytys- ja generaattorisovellukset, kuten hybridiaurinkokennot, implantoitavat lääketieteelliset laitteet ja puettava elektroniikka. Puettavaan elektroniikkaan liittyy ajatus ohutkalvojen kasvattamisesta suoraan tekstiilille. Polymeerien pinnoittaminen ALD:llä on melko uusi tutkimuskohde ja se sisältääkin paljon tuntemattomia ilmiöitä, sillä polymeerisubstraattien pinnat eroavat paljon yleisesti käytetyistä kiinteistä substraateista. Lisäksi tekstiilien tyypillisesti erittäin huokoinen rakenne vaikeuttaa ALD:tä entisestään. Diplomityön kokeellisessa osassa onnistuttiin todistetusti kasvattamaan kiteistä sinkkioksidia sekä puuvillaiselle tekstiilille että langalle. Tämä todistettiin röntgendiffraktiomittausten avulla. Tulosten perusteella sekä dietyylisinkin että veden optimaaliseksi pulssiajaksi määritettiin 1,5 s ja huuhteluajaksi 10 s. Sinkkioksidia myös seostettiin alumiinilla ja lisäksi sen rakennetta muokattiin hybridisuperhilaksi lisäämällä rakenteeseen säännöllisesti orgaanisia kerroksia. Ohutkalvoista tutkittiin niiden rakenteellisia, termosähköisiä ja tekstiilin käytön kannalta olennaisia ominaisuuksia. Tulosten perusteella sekä hybridisuperhilarakenne että seostaminen parantavat sinkkioksidin termosähköisiä ominaisuuksia.
Textile Designer Perspective on Haptic Interface Design: A Sensorial Platform for Conversation Between Discipline
(2020-07-10) Townsend, Riikka; Bang, Anne Louise; Mikkonen, Jussi
A4 Artikkeli konferenssijulkaisussa
Smart textiles have established a foothold in different academic fields, such as in chemistry, engineering, and in human-computer interaction (HCI). Within HCI, smart textiles are present in research in many ways, for example, as context, as means, or as focus. However, interdisciplinary projects tend to leave the implications of and to textile design without notice. How can a project utilise a textile designer’s skills to feed back to textile design from an interdisciplinary project? In this paper, we present a case study, where a textile designer’s role extends beyond the prototype production, and we analyse the project in light of textile design. Our findings show that textile design can augment data collection and analysis. We conclude with a discussion towards inclusion of textile design in HCI.
Wearable payment for young women - Utilizing rapid prototyping in iterative conceptual design
(2015) Kaipainen, Verna
School of Arts, Design and Architecture | Master's thesis
This is a production-based thesis work made aside my work as a 3d-printing specialist in Microsoft Mobile`s Design Department`s 3d-lab. The topic is designing a jewelry-like payment device for young women. A production-based thesis work was made to discover the process of designing for wearable technology and the practical issues related to it. The main process-guiding assumption in this thesis is that familiar, jewelry-like form would be more acceptable for young women in context of everyday wearable device. Important goal for 3d-lab is to knit rapid prototyping as an integral part of design process, so I utilized rapid prototyping as my main methodology for studying the subject. The goals for thesis work were to learn more about wearable devices field and practical design issues relevant to it. For author the goal was to improve my skills both in iterative design concept -creation and prototyping. The goal for the concept-creation was to prototype an idea for acceptable, wearable, contactless alternative for traditional debit card in small everyday purchases, targeting to young women. The methods used in this thesis work are literature research, benchmarking, rapid prototyping, expert interview and user-centered design methods. The process consisted of background research, making re-brief, technical concept creation, making several product design ideas, testing and reviewing the ideas, selecting one design for further development and finally testing and reviewing the appearance model and interaction prototype with potential end users. The project`s end result is a design concept depicted by prototypes and pictures, and a written thesis report about the design process and philosophy behind the design work. The main focus of this written report is in product design, the minor focus areas are designing interaction and concept creation. Concentrating deeply to all product development areas was not purposeful in thesis framework, so I decided to put most effort on describing the product design development.