Indiana University-Purdue University Indianapolis (IUPUI) / Material jetting (MJ) additive manufacturing (AM) has experienced an increased adoption in several industry areas and as well as research applications. One of MJ’s distinct benefits is the ability to print tunable composites, digital materials (DM) by carefully adjusting the ratio of droplets of heterogeneous base-polymeric inks. However, the lack of material information usable in computer simulations has hampered its acceptance in some end-use applications. For these materials to be used in Finite Element Analysis (FEA) simulations the mechanical properties of the DMs need to be characterized into usable material models. DMs printable with an MJ printer has a wide variety of materials properties, ranging from flexible silicone rubber to rigid Acrylonitrile Butadiene Styrene (ABS). Therefore, to cohesively express the mechanical behavior of the DMs it is necessary to utilize non-linear material models. The objective this research is to conduct physical testing to characterize the mechanical behavior of DMs printable with an MJ. Subsequently, to validate the effectiveness of the material models for multi-DM prints. Utilizing the newly characterized material models two use cases were investigated, with the goal of improving the performance of printed parts through simulation. In this study, an MJ printer was used to fabricate the test specimens as well as the components used in the use case studies. The study was focused on the family of six DMs printable from the mixture of the base polymers Tango Black+ (TB+) and Vero White+ (VW+). To characterize the mechanical properties of the materials a tensile test was conducted utilizing the KS-M6518 standard as a basis. The mechanical properties of the DMs were then fitted into four non-linear models and the results compared. The fitted models were, the Neo Hookean model, a two-parameter, three-parameter, and a five-parameter Mooney Rivlin model. To confidently use the material models for multi-DM prints FEA simulations need to validate the accuracy to which they can predict the deformation of the samples under load. To compare the results of the computer simulations and the physical test, strain maps for both results were analyzed. Four different test specimens were printed and tested. A baseline single material samples were compared to three multi-material samples with different embedded structures. The results confirmed the validity of the material models even when used for multi-DM prints. The recently characterized models are utilized in two use case studies which showcase the potential of DMs. The first use case was focused on printing multi-DM substrates for the use of stretchable electronics. The second use case investigated the benefits of utilizing multiple materials to create 3D conductive traces utilizing a new method, the “swollen-off” method. Both case studies showed the benefits of utilizing DMs as well as the applicability of the material models in predictive simulations.

This diploma thesis is focused on development and production of functional parts and new materials for the purpose of supporting educational website www.studiumchemie.cz on evaluation of its operation. The changes were made in graphical, structural and functional parts of website, which were designed based on the analysis of behavior of visitors to the website and by direct reaction of visitors. Changes were related to structure of database of chemical experiments or creating new features for registered users, such as evaluation of materials or personification of user profile. In cooperation with specialists have been incorporated several new materials, focusing on the issues of nuclear magnetic resonance (NMR). In addition to that, two new games have been prepared - Chemical pentathlon and Identify molecules. New materials should be used to expand the portfolio of educational materials on the website. Furthermore, the administration interface has been created and designed to meet the needs of editorial contributors site without prior programming experience. Evaluation of the statistics associated with the operation of the site showed that web traffic continues to grow. The most visited parts of the site are database of educational materials and videos of chemical experiments. The current site traffic is...

The purpose of the study is to investigate how four professional music teachers’ reason about and use teaching materials for music teaching in practice. Four semi-structured interviews have been conducted to investigate the extent to which teaching materials in music are used and what potential for improvement there is in terms of the current range of teaching materials for music teaching. The study is based on a socio-cultural perspective, previous research on teaching aids and the use of teaching aids. The results show that digital teaching materials are used mainly in music teachers' teaching. Analog teaching materials are used less partly because the supply is perceived as deficient or because what is offered does not meet the music teachers' requirements for teaching materials. The use of self-produced teaching materials occurs in the music teachers' teaching. The potential for improvement for teaching materials is based on two aspects. One aspect concerns how the connection between theory and practice is significant. Teaching materials with a clear connection to the curriculum, syllabus and knowledge requirements can ensure that the teacher's assignment is fulfilled. The second aspect concerns how teaching materials are modern in relation to the present. This is to be experienced as more attractive to the students, which can lead to increased interest in the subject of music.

The purpose of this thesis is to investigate the effects of a designerly approach to data analytics. The research was conducted during the Interaction Design Master program at Malmö University in 2017 and follows a research through design approach where the material driven design process in itself becomes a way to acquire new knowledge. The thesis uses big data as design material for designers to ideate connected products and services in the context of smart city applications. More specifically, it conducts a series of material studies that show the potential of this new perspective to data analytics. As a result of this research a set of designs and exercises are presented and structured into a guide. Furthermore, the results emphasize the need for this type of research and highlights data as a departure material as of special interest for HCI.

Submitted by Larissa Vitoria Cardoso Cusielo (larissavitoria@id.uff.br) on 2018-01-18T17:38:33Z No. of bitstreams: 6 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Dissertação Rafael da Costa Ferreira - FINAL -23-05-2017.pdf: 3432706 bytes, checksum: a6000fb8860f7569a29c566fd61a2092 (MD5) Instruções para ler os e-books - Versão Final.pdf: 1360179 bytes, checksum: c5c1399510dc5ccc74eaf3b8fb1a23fb (MD5) Texto com vídeos e animacoes - O nascimento do sistema solar - Versão Aluno.epub: 36975766 bytes, checksum: 2ab2ac6d60e2f7a2a3060773da37e4ed (MD5) Texto com vídeos e animacoes - O nascimento do sistema solar - Versão Professor.epub: 37282915 bytes, checksum: 8f2f8f9ff9664640b09505430e2de6e1 (MD5) Texto Estático - O nascimento do sistema solar.epub: 591589 bytes, checksum: 7ee6e9828b1ba5ed29a28d20bde48474 (MD5) / Approved for entry into archive by Biblioteca do Aterrado BAVR (bavr@ndc.uff.br) on 2018-01-24T17:44:31Z (GMT) No. of bitstreams: 6 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Dissertação Rafael da Costa Ferreira - FINAL -23-05-2017.pdf: 3432706 bytes, checksum: a6000fb8860f7569a29c566fd61a2092 (MD5) Instruções para ler os e-books - Versão Final.pdf: 1360179 bytes, checksum: c5c1399510dc5ccc74eaf3b8fb1a23fb (MD5) Texto com vídeos e animacoes - O nascimento do sistema solar - Versão Aluno.epub: 36975766 bytes, checksum: 2ab2ac6d60e2f7a2a3060773da37e4ed (MD5) Texto com vídeos e animacoes - O nascimento do sistema solar - Versão Professor.epub: 37282915 bytes, checksum: 8f2f8f9ff9664640b09505430e2de6e1 (MD5) Texto Estático - O nascimento do sistema solar.epub: 591589 bytes, checksum: 7ee6e9828b1ba5ed29a28d20bde48474 (MD5) / Made available in DSpace on 2018-01-24T17:44:31Z (GMT). No. of bitstreams: 6 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Dissertação Rafael da Costa Ferreira - FINAL -23-05-2017.pdf: 3432706 bytes, checksum: a6000fb8860f7569a29c566fd61a2092 (MD5) Instruções para ler os e-books - Versão Final.pdf: 1360179 bytes, checksum: c5c1399510dc5ccc74eaf3b8fb1a23fb (MD5) Texto com vídeos e animacoes - O nascimento do sistema solar - Versão Aluno.epub: 36975766 bytes, checksum: 2ab2ac6d60e2f7a2a3060773da37e4ed (MD5) Texto com vídeos e animacoes - O nascimento do sistema solar - Versão Professor.epub: 37282915 bytes, checksum: 8f2f8f9ff9664640b09505430e2de6e1 (MD5) Texto Estático - O nascimento do sistema solar.epub: 591589 bytes, checksum: 7ee6e9828b1ba5ed29a28d20bde48474 (MD5) / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / O principal objetivo dessa Dissertação é avaliar o efeito, na aprendizagem, de textos com recursos de vídeos integrados, uma aplicação das tecnologias de informação e comunicação (TIC) na sala de aula. Pesquisar os efeitos de tais formatos de texto justifica-se pelo fato de as mídias digitais estarem presentes no cotidiano dos jovens, que são o público alvo do estudo. Pesquisar formas alternativas de mídias educacionais pode representar avanços no processo de ensino e aprendizagem ao tornar mais evidentes quais as melhores formas de utilização desses. Para tanto foi produzido um texto sobre a formação do sistema solar e a energia de fusão nuclear do Sol, em formato EPUB3, o que possibilita qualquer pessoa o acessar nas principais plataformas digitais, com o auxílio de um leitor de ebooks. O mesmo material foi utilizado em dois momentos diferentes com os alunos: no primeiro, usamos um texto em formato tradicional, com imagens estáticas. No segundo momento, o mesmo texto escrito foi apresentado aos alunos, mas desta vez com vídeos substituindo algumas das imagens estáticas do primeiro, contendo animações referentes às imagens estáticas que substituíram. Antes e após a aplicação dos dois materiais, foi aplicado um questionário com perguntas referentes ao texto e aos vídeos. A análise dos questionários e opinião dos alunos participantes mostra uma melhora na aprendizagem e desempenho nos testes e sugere que vídeos em materiais digitais têm forte potencial para facilitar o aprendizado de conceitos físicos bastante abstratos e normalmente distantes do cotidiano dos alunos. / The main goal of this dissertation is to evaluate the effect of digital instructional materials with integrated text and videos, applying therefore an Information and Communication Technology (ICT) in a High School environment. Probing the effects of such materials is justified in that digital media are ubiquitous in young learners’ lives, the target group of our study. Alternative educational media can lead to advances in the teaching and learning processes if the best strategies for their application is made evident. With that aim, we have produced a digital instructional material about the formation of the solar system and nuclear fusion energy in the Sun in EPUB3 format, which makes it readily accesible in the most important operating systems with the aid of an e-book reader. The same material was used in two different instances: in the first one, we used the text in its most traditional format, consisting only of written text and static images. In the second instance, we handed students the same written text, but with videos replacing some of the static images. The videos contained animations which intended to illustrate the same concepts covered in the static images they replaced. Before and after the application of the two materials, students answered a questionnaire about the written material and about the videos. The analysis of the answers to the questionnaire shows a significant improvement in the understanding of the concepts especially after the study of the materials with the videos, which suggests that videos in digital media can potentially enhance the learning of rather abstract physical concepts which are not usually present in the students’ everyday lives.