Avcı, Ayşe Nihan
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Avci, Ayse Nihan
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Dr. Öğr. Üyesi
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nihanavci@cankaya.edu.tr
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İç Mimarlık
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| Journal | Count |
|---|---|
| Light & Engineering | 2 |
| Ankara Araştırmaları Dergisi | 1 |
| A/Z ITU Journal of the Faculty of Architecture | 1 |
| Cultura e Scienza del Colore | 1 |
| Grid - architecture, planning and design journal (Online) | 1 |
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Article Citation - Scopus: 4Evaluating Effectiveness of Led and Oled Lights on User Visual Comfort and Reading Performance(Istanbul Teknik Universitesi, Faculty of Architecture, 2021) Avci, A.N.; Memikoğlu, İ.In interior architecture, one of the main purposes of light is to create comfortable and functional spaces according to user needs. Light provides individuals to understand, get information for visual tasks and it affects how they experience and behave in the environment. Desired illuminance levels are required for visual comfort and task efficiency. This study analyzes the effects of different illuminance levels of light emitting diode (LED) and organic light emitting diodie (OLED) lights on user visual comfort and reading performance. An experiment was con-ducted with eighty interior architecture students at Çankaya University. Six lighting scenarios were created with LED and OLED lighting sources that assessed six visual comfort criteria. The experimental setting consisted of three different illuminance levels, as 200, 500 and 800 lx. The results revealed that different illuminance levels were found more comfortable for different visual comfort criteria, but the illuminance level of 500 lx was visually more comfortable than the other illuminance levels. The illuminance level of LED 200 lx was visually more comfortable than LED 800 lx. OLED light was found visually more comfortable than LED light. In addition, participants read slower under the illuminance level of LED 200 lx. It was concluded that illuminance levels of light effect user’s visual comfort and reading performance. This study provides a basis to recommend the preferred illuminance level for LED and OLED light during a reading performance. © 2021, Istanbul Teknik Universitesi, Faculty of Architecture. All rights reserved.Conference Object Citation - Scopus: 4Analyzing Natural Lighting Conditions From the Perspective of Biophilic Design in Indoor Office Environments(Institute of Physics, 2022) Avci, A.N.; Karaman, G.D.The term "biophilic design"is recognized by some designers who coined a word for designing instinctively using fresh understandings, reasons, and views, which helps reconnect us with the natural world in the indoor environment. Within the various patterns that connect humans with nature, natural lighting provides an orientation to the day and night according to the sun's location and cycles, which is essential for human health and wellness. The supply and quality of natural lighting, including its influence on mood, have been extensively investigated and written about for many years in various locations and the overlapping science and design disciplines. This paper analyzes the biophilic design approach to mood for the natural lighting conditions that change according to the position of the office environments in winter. The selected two indoor office environments were located in the Faculty of Architecture at Çankaya University on Main Campus, on the second floor of the building. Office-1 overlooked the design studio, preventing it from taking natural lighting directly, and Office-2 directly penetrated the natural lighting. Natural lighting-based photos were taken from the selected offices during three periods of the day. The photos and a survey were directed at the two groups: Group 1 consisted of the students who took the Natural and Artificial Lighting Course, and Group 2 students who did not take this course. The experimental instruments analyzed their moods to evaluate natural lighting conditions. © Published under licence by IOP Publishing Ltd.Doctoral Thesis Circadian lighting design: Effects of OLED lighting conditions on visual comfort and well-being in an indoor office environment(2022) Avcı, Ayşe Nihanİnsan ihtiyaçlarına cevap verecek şekilde çeşitli aydınlatma armatürleri geliştirilmiştir. Akkor ve deşarjlı lambalar yaygın olarak kullanılmaya devam ederken, katı hal aydınlatma ailesinin bir üyesi olan organik ışık yayan diyot (OLED) paneller gibi daha yeni teknolojiler daha avantajlı hale gelmiştir. OLED'ler, sirkadiyen sistem dostu olma, düşük güç tüketimi, uzun ömür ve mavi ışık riski taşımama gibi diğer yapay aydınlatma alternatiflerine göre çok sayıda avantajla birlikte tamamen yeni bir yapay aydınlatma olanakları seti sunmaktadır. Aydınlatma, insan değerlendirmelerine dayalı olarak görsel ve görsel olmayan açılardan insan ve çevre arasındaki ilişkiyi etkilemektedir. Vurgu, iç mekanlarda insanın görsel konforuna ve refahına fayda sağlayan konforlu ve sağlıklı aydınlatmanın sağlanmasıdır. OLED aydınlatma ile insan sirkadiyen sistemi, görsel konfor ve ofis iç mekanlarında refah arasındaki ilişki üzerine çalışmalar sınırlıdır. Bu tez, OLED aydınlatma koşullarının kapalı bir ofis ortamında insan sirkadiyen sistemini, görsel konfor seviyesini ve refahını nasıl etkilediğini araştırmaktadır. Deney, Çankaya Üniversitesi Mimarlık Fakültesi'nden 31 gönüllü ile yapılmıştır. Tam ölçekli ofis ortamı, OLED aydınlatmanın iki farklı renk sıcaklığı (CCT), yani 3000 K ve 4000 K ile tasarlanmıştır. OLED aydınlatma koşullarının insan sirkadiyen sistemi üzerindeki etkilerini gerçek anlamda araştırmak için bilek aktigrafisi kullanılmışır. İki OLED aydınlatma koşulunun görsel konfor üzerindeki etkilerini değerlendirmek için Ofis Aydınlatma Anketi kullanılmış ve iki OLED aydınlatma koşulunun, katılımcıların refahını değerlendirmek için Küller'in Çevresel Değerlendirme Ölçeği kullanılmıştır. Veri toplama süreci, her katılımcı için 3000K ve 4000K OLED aydınlatma koşulları olmak üzere iki farklı gün ile 10:00-15:00 saatleri arasında çalışma saatlerinin büyük bir bölümünü almıştır. Toplanan veriler daha sonra çok değişkenli istatistiksel yöntemler kullanılarak analiz edilmiştir. Sonuçlarla ilgili olarak, insan sirkadiyen sistemi, sıcak beyaz (3000 K) OLED aydınlatmaya maruz kaldığında çalışma günü boyunca etkili olmaya devam etmiştir. Ayrıca sıcak beyaz (3000 K) OLED aydınlatma, sirkadiyen ritmik aktivite ve aydınlık düzeyinde nötr beyaz (4000 K) OLED aydınlatmaya göre daha etkilidir. Görsel konfor koşulları açısından, sıcak beyaz (3000 K) OLED aydınlatma, nötr beyaz (4000 K) OLED aydınlatmaya göre daha konforlu bulunmuştur. Refah açısından, her iki OLED aydınlatma koşulu da ölçeğin pozitif ucuna doğru derecelendirilmiş; ancak katılımcılar, sıcak beyaz (3000 K) OLED aydınlatmaya maruz kaldıklarında, nötr beyaz (4000 K) OLED aydınlatmaya göre daha sakin, tatmin olmuş, meraklı, ilgili ve enerjik hissetmişlerdir. Çalışmanın bulguları, OLED aydınlatmanın sirkadiyen aydınlatma tasarımında etkili olduğunu göstermektedir; burada görsel olmayan yönleri de hesaba katarak insanların görsel konforunu ve refahını iyileştirmek amacıyla iç mekanlardaki aydınlatmayı optimize etmek için önemli bir referans görevi görmektedir. Bulgular ayrıca, insan sirkadiyen sistemi ile iç mekanlardaki farklı aydınlatma türleri arasındaki ilişkiyi araştırmak için iç mimari ve aydınlatma tasarımı üzerine gelecekteki çalışmalarda bilek aktigrafisinin kullanılması gerektiğini düşündürmektedir. Bu, sirkadiyen aydınlatma tasarım yöntemleri hakkında ilginç bulgulara ve tartışmalara yol açabilir.Master Thesis Effects of illuminance levels of solid state lighting sources on visual comfort(Çankaya Üniversitesi, 2017) Avcı, Ayşe NihanLighting systems in interior architecture need to be designed according to the function of the space, user's comfort and needs. In order to see the environment, besides light and reflecting surfaces, desired lighting levels are required for visual comfort. Desired and comfortable lighting levels increase task efficiency. The aim of this study is to research the effects of illuminance levels on user's visual comfort and reading performance. Therefore, with the participation of eighty participants from the department of Interior Architecture of Çankaya University, six lighting scenarios were created with LED and OLED lighting sources that consisted of three different illuminance levels. A reading task was performed in each lighting scenario. The results indicated that the illuminance level of 500 lux was visually more comfortable than the other illuminance levels. Different illuminance levels were found to be more comfortable for different visual comfort criteria. OLED lighting was found visually more comfortable than LED lighting with respect to the visual comfort criteria. In addition, participants read slower under the illuminance level of 800 lux for each lighting source and it was concluded that illuminance levels effect user's visual comfort and reading performance.Article Bir Erken Cumhuriyet Dönemi Yapısında Doğal Aydınlatmaya Dair İç Mekan Aydınlık Düzeylerinin İncelenmesi: Ankara Refik Saydam Hıfzıssıhha Enstitüsü Kimyahane ve Bakteriyoloji Binası Laboratuvarları Örneği(2017) Avcı, Ayşe Nihan; Memikoğlu, İpekGeçmişten günümüze estetik, fonksiyon, sürdürülebilirlik, kullanıcı-mekân ilişkisi gibi konulardaki değişimlere tanıklık eden Ankara,dinamik yapısıyla kendinden söz ettirmiş ve çeşitli tartışmalara konu olmuştur. Bu değişimlerle birlikte yeni talepler ortaya çıkmış,ihtiyaçları karşılayabilmek için farklı fonksiyonları bir arada bulunduran yeni binaların inşa edilmesiyle, kentin çehresi gün geçtikçedeğişmiştir. Mimari tartışmalara konu olan yapılar, genellikle 1920-1950 yılları arasında yapılmış Cumhuriyet dönemi yapılarıdır. Öteyandan geçmişte inşa edilen binalarda, iç mekân tasarımında kullanıcı için önemli olan tasarım ilkelerine hangi boyutta yaklaşıldığıfarklı disiplinlerde merak konusu olmuştur. Merak konusu olan tasarım ilkelerinden biri de aydınlatmadır. Bu çalışmanın amacı,geçmişte inşa edilen bir yapıda, bina tasarımından ziyade, iç mekân özelliklerinin analiz edilmesi ve benzer çalışmaların artırılmasıdır.İç mekân analizi için, tasarım ilkelerinden biri olan aydınlatma seçilmiştir. Çalışmada, Erken Cumhuriyet dönemi yapılarından biriolan ve Sıhhiye'de bulunan Refik Saydam Hıfzıssıhha Enstitüsü Kimyahane ve Bakteriyoloji Binası'nın günümüze kadar bir kısmıylakorunabilen laboratuvarlarındaki doğal aydınlatmaya dair aydınlık düzeyleri araştırılmıştır. Bulgular, standartlarda belirtilen değerlerlekarşılaştırılıp yorumlanmıştır. Çalışmadaki bulgular ve yorumlar, ölçüm yapılan günler ve saatle sınırlandırılmıştır.Conference Object OLED Lighting and Human Circadian System: A Review(2021) Avcı, Ayşe Nihan; Akbay, SaadetLight is a form of energy that affects the human sleep cycle, working hours, alertness, productivity, and well-being. As one of the most essential environmental factors, lighting requires extensive research to understand the human-environment interaction. Earlier studies reveal that various artificial lighting technologies are utilised to investigate the human circadian system; experiments employing solid state lighting (SSL) sources are still being conducted to determine how the human circadian system is affected. Due to the advantages of OLED lighting, there is a need to enhance the use of this form of artificial lighting in an indoor environment. This paper focuses on a literature review on artificial lighting sources, particularly OLED lighting, which has been used from the past to the present. This paper also discusses how OLED lighting can be utilised to alter the human circadian system in an indoor environment.Article Effects of LED Lighting on Visual Comfort with Respect to the Reading Task(2017) Avcı, Ayşe Nihan; Memikoğlu, İpekLighting systems in interior architecture need to be designed according to the function of the space, the type of task within the space, user comfort and needs. Desired and comfortable lighting levels increase task efficiency. When natural lighting is inadequate in a space, artificial lighting is additionally used to support the level of light. With the technological developments, the characteristics of light are being researched comprehensively and several business segments have focused on its qualitative and quantitative characteristics. These studies have increased awareness and usage of artificial lighting systems and researchers have investigated the effects of lighting on physical and psychological aspects of human in various ways. The aim of this study is to research the effects of illuminance levels of LED lighting on user visual comfort. Eighty participants from the Department of Interior Architecture of Çankaya University participated in three lighting scenarios consisting of 200 lux, 500 lux and 800 lux that are created with LED lighting. Each lighting scenario is evaluated according to six visual comfort criteria in which a reading task is performed. The results of the study indicated that LED lighting with three different illuminance levels affect visual comfort in different ways. The results are limited to the participants and questions that are attended and used in this study.Article Visual Comfort and Indoor Environmental Quality in a Workplace Setting: A Case Study in Ankara, Türkiye(Univ Zagreb Fac Architecture, 2025) Avci, Ayse NihanWorkplaces are occasionally specified in locations where learning environments are placed together, and they are also found in common areas with various functions. Individuals need light, as it is a vital component of modern life that fosters a sense of comfort, health, and well-being. Lighting systems in interior architecture need to be designed according to the function of the space and individual needs. In cases where natural lighting is insufficient, comfortable, healthy, and prosperous places are designed with mixed-use lighting. Factors affecting indoor environmental quality, such as sound, color, and thermal comfort, should be designed together with lighting. This study aims to investigate the indoor environmental quality parameters of the specified workplace regarding visual comfort. Students voluntarily participated in the study. An experimental space on the first floor of the building, known as the "Common Building" of & Ccedil;ankaya University and serving as a connection point for the faculties, was chosen for the study. This type of research is crucial for ensuring that indoor environmental quality parameters are effectively utilized indoors to enhance human-centric interior design.Conference Object Aydınlık düzeylerinin kullanıcının okuma hızı ve görsel konforu üzerindeki etkisi(2016) Avcı, Ayşe Nihan; Memikoğlu, İpekArticle Assessment of Daylighting in a Historical Educational Building: Ankara University Faculty of Science Analytical Chemistry Laboratory(Znack Publishing House, 2023) Avci, Ayse NihanThe conditions of Ottoman architecture persisted during the republican period at the turn of the 20th century. Later, radical changes in the structure of the state affected the field of architecture, and changes in the world were reflected in our country. The structures that are the subject of architectural debates are typically early republican period buildings, which were built between 1920s and 1950s. On the other hand, in past buildings, the interior de-sign criteria that are important for the user in interior design have been the subject of interest in various disciplines. Lighting - daylighting and electric lighting - in different interiors is one of the design criteria that has intrigued many researchers. Laboratories, classrooms, studios, circulation areas, administrative spaces, offices, conference rooms, and wet spaces are all common features of educational buildings. Each of these spaces has unique lighting requirements. The aim of this study is to assess the daylighting performance in the interior and encourage similar studies in historical educational buildings rather than the architectural design of these buildings. Daylighting performance was assessed in the analytical chemistry laboratory at the Ankara University Faculty of Science, block A, which was built during the Second National Architectural Movement and bears the traces of Sedad Hakki El-dem, Emin Onat, and Paul Bonatz. A morning interval (10:00-11:00) where the courses are considered the most productive was chosen for the evaluation. The results were compared and interpreted with the values specified in the standards; the measurement is limited to the day and time interval. Keywords: daylighting, the Second National Architectural Movement, Ankara, Faculty of Science, educational building, analytical chemistry laboratory
