Browsing by Author "Ozbey, Fulya"

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Citation - WoS: 2
Citation - Scopus: 1
Exploring 3D printing techniques for the hybrid fabrication of discrete topology optimized structures
(SAGE Publications Inc., 2022) Mauricio Morales-Beltran; Berk Selamoğlu; Kaan Çetin; Halis Arda Özdemir; Fulya Özbey; Ozdemir, Halis Arda; Ozbey, Fulya; Morales-Beltran, Mauricio; Cetin, Kaan; Selamoglu, Berk
The application of topology optimization methods in architecture while useful for conceptual design explorations seems to be limited by the practical realization of continuum-type design outcomes. One way to overcome this limitation is setting up design and fabrication techniques through which continuum domains become discrete structures. This study investigates to which extent discrete optimized systems can be built using a hybrid approach combining 3D printing and analogue fabrication techniques. The procedure is based on an algorithm in Grasshopper (Rhinoceros) that translates continuum topologies obtained in MATLAB into discrete systems providing alternatives depending on the targeted volume fraction the intended surface smoothness of the structural components and building material. The study focuses on fabrication aspects and structural performance of discrete structures using 3D printed nodes. Experimental tests evaluate the compressive strength of different types of filaments with varied infill percentages. Final prototypes are fabricated using a hybrid technique involving the use of 3D printed nodes to assemble bar-arrays comprising wooden members. Results provide a critical appraisal of the limitations and potentialities of 3D printing for hybrid fabrication of real scale structures. © 2022 Elsevier B.V. All rights reserved.
Citation - WoS: 8
Citation - Scopus: 10
Restorative Effects of Virtual Nature on the Emotional Well-being of Community-dwelling Older Adults
(GALENOS PUBL HOUSE, 2024) Kenan Eren Sansal; Ayse Candan Simsek; Selin Aktan; Fulya Ozbey; Ayca Paksoy; Ozbey, Fulya; Sımsek, Ayse Candan; Sansal, Kenan Eren; Aktan, Selin; Paksoy, Ayça
Objective: Given the loss of direct nature contact due to urbanisation and demonstrated psychological benefits of nature the question arises as to whether direct nature contact can be virtually substituted or supplemented in the elderly living in isolation from nature. Although a number of studies have demonstrated the restorative effects of virtual nature in old age their results are inconclusive and complicated by the novelty of virtual reality (VR) experience participants' nature connectedness and their previous nature contact. Therefore a study was conducted for increasing our limited understanding of the subject. Materials and Methods: Community-dwelling older adults living in highly urbanised areas of Turkey volunteered for the study. After excluding the ineligible volunteers and collecting information on sample characteristics 60 participants who were assigned to two study groups watched 6-minute 360 degrees videos of nature and urban settings on two separate occasions. On these occasions they reported on their affective states the restorativeness of the environments in those videos and their nature visit frequency. Results: VR experience was new and tolerable for the majority of the participants. Unlike the urban video the nature video significantly improved participants' affective states and was reported to be more restorative and favourable. Neither participants' nature connectedness nor their nature visit frequency which was found to be generally low did not have a moderating effect on the results. Conclusion: Virtual indirect contact with nature can be effectively used especially for those living in heavily urbanised areas to maintain or improve psychological well-being in old age.