218 research outputs found

    A Toolkit for Practice-Based Learning of Mechanisms in Industrial Design Education: An Application of a Method Combining Deductive and Inductive Learning

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    Industrial design education is focused on teaching a combination of various interdisciplinary competencies. One of these projected learning outcomes is to be able to design mechanisms in order to fulfil certain mechanical constraints in products. Studies show that theoretical knowledge supported by practice helps to teach industrial design students the mechanisms. In the current situation in Turkey, practice-based courses are designed in a similar purpose. However, graduates severely lack mechanical design skills. In this study, a two-staged toolkit of a holistic flow is introduced to prevent the deficiency mentioned above. In the toolkit, mechanisms are taught by combining deductive and inductive approaches, instead of a directly inductive conventional approach. The toolkit is applied to 36 sophomore year students. Assessments of the students and their self-evaluations are collected and analysed. Findings show that the toolkit can be beneficial for teaching of mechanisms to ID students through some revisions

    How Electronics Knowledge Relates to Industrial Design Education

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    This study has two purposes: To clarify how industrial design relates to electronics knowledge and to determine whether industrial design education is sufficient for teaching it. As digital product design is frequently focused on the design of virtual interfaces until recently, less attention was paid to the design of physical interactions and electronic interfaces. There is increasing interest in electronics education in industrial design, yet electronics is still a bottleneck for many industrial designers. What electronics knowledge industrial designers should have and whether they know it is debatable. Therefore, the study presents a literature review and thematically analyzed interviews to determine its scope. Then, a survey is planned based on the concepts which interviewees remark on. The survey aims to determine whether senior-grade and fresh-graduate industrial designers use correct reasoning in design cases based on electronics. Findings remark that two-thirds of the participants failed in the critical electronics domains and their reasoning scores are distributed equally depending on whether they took electronics courses. Therefore, it is discussed that there is a need for developing a common understanding of the role of electronics in design education. And it is recommended that the approach may focus more on a hands-on terminology education

    Inquiry-based learning approach for a systematically structured conceptual design process: Design project for disabled people

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    With the projects implemented in the 'Design for the Disabled' course in the University 2019-2020 academic year, students are asked to develop solutions for the problems of disabled individuals, which is one of the real-world issues, while gaining professional knowledge such as critical thinking, idea generation and learning the conceptual design process. In addition, it is aimed to increase their learning motivation and interest in social design projects. It was learned that the students did not carry out a design project for disabled individuals in their previous projects. Throughout the semester, students developed their projects with a conceptual design matrix consisting of Data Collection, Primary Analysis, Secondary Analysis, Synthesis, Hypothesis, Preliminary Design and Final Design stages. Students were asked to present their projects at the Final Design stage. The course was conducted through online classes during the Covid-19 Pandemic for twelve weeks. Students are enabled to experience an interdisciplinary critical process. Thus, successful solutions and new models have been developed in projects in terms of product and space

    Edge channel confinement in a bilayer graphene nn-pp-nn quantum dot

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    We combine electrostatic and magnetic confinement to define a quantum dot in bilayer graphene. The employed geometry couples nn-doped reservoirs to a pp-doped dot. At magnetic field values around B=2 B = 2~T, Coulomb blockade is observed. This demonstrates that the coupling of the co-propagating modes at the pp-nn interface is weak enough to form a tunnel barrier, facilitating transport of single charge carriers onto the dot. This result may be of use for quantum Hall interferometry experiments

    An Instructional Model for Social Design Education: A Design Project for Stray Animals Including Production-Based Learning Approach

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    Social design education has become a significant part of industrial design education, thus new methodologies are required and being developed. One of these societal problems is animal welfare and human interaction with stray animals that is not a common topic amongst previous studies. This study presents a toolkit for social design teaching, combining social design thinking and product development processes to generate and realise design solutions for stray animals with a production-based learning approach. The toolkit consisting of nine phases under two processes was implemented into the second-year ‘Product Design II’ 7-week studio project at Gazi University. A total of 35 sophomores taking the course offered during the second semester of the 2017/2018 academic year, participated in housing and feeding stations for a stray animals’ design project. To analyse the appropriateness of the toolkit, the submissions and process of the project were observed and evaluated by instructors and post-project questionnaires were employed to both instructors and students. The results revealed that this toolkit for social design education combining design thinking and product development processes improved industrial design students’ competencies and learning outcomes

    Strong suppression of Coulomb corrections to the cross section of e+e- pair production in ultrarelativistic nuclear collisions

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    The Coulomb corrections to the cross section of e+ee^+e^- pair production in ultrarelativistic nuclear collisions are calculated in the next-to-leading approximation with respect to the parameter L=lnγAγBL=\ln \gamma_A\gamma_B (γA,B\gamma_{A,B} are the Lorentz factors of colliding nuclei). We found considerable reduction of the Coulomb corrections even for large γAγB\gamma_A\gamma_B due to the suppression of the production of e+ee^+e^- pair with the total energy of the order of a few electron masses in the rest frame of one of the nuclei. Our result explains why the deviation from the Born result were not observed in the experiment at SPS.Comment: 4 pages, RevTe

    Helminth fauna of Lebanon lizard, Phoenicolacerta laevis (Gray, 1838), (Squamata: Lacertidae) from Southern Turkey

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    In the years 2010 and 2014, fifty-four samples of Phoenicolacerta laevis from eight localities in Adana (n=6) and Hatay (n=48) were collected and examined for helminth parasites. New host and locality records were recorded. As a results of present study, three species of Digenea, Sonsinotrema tacapense, Prosthodendrium chilostomum, Brachylaima sp. (metacercaria); two species of Cestoda, Oochoristica tuberculata and Mesocestoides sp. and four species of Nematoda, Skrjabinodon medinae, Spauligodon sp., Thubunaea sp. and a larva of the Ascaridiidae Ascarididae gen. sp. were reported for lizard samples. We document new host records for all of helminth species reported here. Sonsionotrema tacapense (Digenea), and Thubunaea sp. (Nematoda) are recorded for the first time from Turkey. There are, to our knowledge, no reports of helminths for P. laevis in Turkey and also from its range

    Coulomb Effects on Electromagnetic Pair Production in Ultrarelativistic Heavy-Ion Collisions

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    We discuss the implications of the eikonal amplitude on the pair production probability in ultrarelativistic heavy-ion transits. In this context the Weizs\"acker-Williams method is shown to be exact in the ultrarelativistic limit, irrespective of the produced particles' mass. A new equivalent single-photon distribution is derived which correctly accounts for the Coulomb distortions. As an immediate application, consequences for unitarity violation in photo-dissociation processes in peripheral heavy-ion encounters are discussed.Comment: 13 pages, 4 .eps figure

    Global distribution of two fungal pathogens threatening endangered sea turtles

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    This work was supported by grants of Ministerio de Ciencia e Innovación, Spain (CGL2009-10032, CGL2012-32934). J.M.S.R was supported by PhD fellowship of the CSIC (JAEPre 0901804). The Natural Environment Research Council and the Biotechnology and Biological Sciences Research Council supported P.V.W. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. Thanks Machalilla National Park in Ecuador, Pacuare Nature Reserve in Costa Rica, Foundations Natura 2000 in Cape Verde and Equilibrio Azul in Ecuador, Dr. Jesus Muñoz, Dr. Ian Bell, Dr. Juan Patiño for help and technical support during samplingPeer reviewedPublisher PD

    Symmetry breaking and quantum correlations in finite systems: Studies of quantum dots and ultracold Bose gases and related nuclear and chemical methods

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    Investigations of emergent symmetry breaking phenomena occurring in small finite-size systems are reviewed, with a focus on the strongly correlated regime of electrons in two-dimensional semicoductor quantum dots and trapped ultracold bosonic atoms in harmonic traps. Throughout the review we emphasize universal aspects and similarities of symmetry breaking found in these systems, as well as in more traditional fields like nuclear physics and quantum chemistry, which are characterized by very different interparticle forces. A unified description of strongly correlated phenomena in finite systems of repelling particles (whether fermions or bosons) is presented through the development of a two-step method of symmetry breaking at the unrestricted Hartree-Fock level and of subsequent symmetry restoration via post Hartree-Fock projection techniques. Quantitative and qualitative aspects of the two-step method are treated and validated by exact diagonalization calculations. Strongly-correlated phenomena emerging from symmetry breaking include: (I) Chemical bonding, dissociation, and entanglement (at zero and finite magnetic fields) in quantum dot molecules and in pinned electron molecular dimers formed within a single anisotropic quantum dot. (II) Electron crystallization, with particle localization on the vertices of concentric polygonal rings, and formation of rotating electron molecules (REMs) in circular quantum dots. (III) At high magnetic fields, the REMs are described by parameter-free analytic wave functions, which are an alternative to the Laughlin and composite-fermion approaches. (IV) Crystalline phases of strongly repelling bosons. In rotating traps and in analogy with the REMs, such repelling bosons form rotating boson molecules (RBMs).Comment: Review article published in Reports on Progress in Physics. REVTEX4. 95 pages with 37 color figures. To download a copy with high-quality figures, go to publication #82 in http://www.prism.gatech.edu/~ph274cy
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