Açık Erişim Sistemine Hoş Geldiniz
Bursa Uludağ Üniversitesi, bilimin ve teknolojinin ilerlemesine katkı sağlamayı, açık, tekrarlanabilir ve güvenilir araştırma çıktıları ile uygulamalarını benimseyerek; toplum ve tüm dış paydaşları yararına bilginin geniş yayılımını taahhüt eder.
BUU Açık Erişim Sistemi, öğretim üyelerimiz ve öğrencilerimizin uluslararası standartlara ve fikri mülkiyet haklarına uygun olarak ürettikleri kitap, makale, tez, ansiklopedi, sanat eseri gibi bilimsel ve sanatsal ürünleri sunmaktadır.
Bursa Uludağ Üniversitesi DSpace kullanan lider kurumlardan biridir.
Son Gönderiler
Climate migration and women
(Sakarya universitesi yayinlari, 2024-01-01) Demir, Fatma; Hasil Korkmaz, Nimet; Akbudak, Nuray; Yigit, MG; DEMİR, FATMA BANU; HAŞIL KORKMAZ, NİMET; AKBUDAK, NURAY; Spor Bilimleri Fakültesi; Yigit, MG; NPL-6715-2025; NPS-5431-2025; EKS-0323-2022
Islam from different perspectives in cuban society
(Univ granada, editorial, 2025-01-01) Perez, Mairim Febles
The Islamic religion has been present in Cuba since the era of Spanish colonization, but its organized practice began in the 1990s during a religious revival in the country. Despite the increasing presence and practice of Islam in Cuba, Muslims face unfavorable views and some acts of discrimination. With the aim of fostering peaceful coexistence, this research sets out to analyze the significance of Islam for both Muslims and non- practitioners of this religion in Cuba. To accomplish this, Drawing and Free Word Association techniques were applied to non-Muslim Cubans, while Muslims were interviewed. The instruments used with non-Muslims reveal the existence of prejudices and stereotypes based on a distorted understanding of the realities of Islam. Meanwhile, those used with Muslims show that Islam is central to their lives, constituting a way of life that influences their future perspectives. This research, based on qualitative methodology, allows for the contrasting of diverse perspectives on Islam and delving into a topic that is little studied in Cuban society.
Web crippling of cold-formed steel with offset holes under itf loading: Experimental, numerical study and new design equation
(Elsevier science inc, 2025-07-01) Bolukbas, Yakup; Oruc, Ramazan; IRZ-9315-2023; NBX-6096-2025
This study investigates the web crippling behavior of cold-formed steel members with offset holes experimentally and numerically, proposing a new design equation. The experimental study includes a total of seven tests under the ITF loading condition, examining the parameters of hole size and distance from the holes to the loading plate. It was determined that hole size and the hole's distance from the loading plate play a significant role in determining web crippling capacity. To validate the experimental data and examine the effects of variables such as hole diameter to web depth, hole diameter to thickness, and distance from the holes to the loading plate to web depth on web crippling capacity, a total of 157 finite element models were developed. The results indicate that an increase in the hole size to web depth ratio and an increase in hole diameter leads to a reduction in web crippling capacity. When the hole is close to the loading point, an increase in hole diameter significantly affects the load-bearing capacity, whereas, at relatively greater distances, its effect is less pronounced. Based on experimental and numerical studies, a new design equation has been proposed, and its accuracy was evaluated through a reliability analysis, which revealed a mean deviation of just 0.2 %. The results indicate that the proposed equation provides consistent and reliable predictions for the web crippling capacity of members with holes. This work fills critical gaps in current design standards, which lack comprehensive guidelines for perforated CFS members under ITF loading.
Influence of thermal pretreatments on dimensional change and humidity sensitivity of densified spruce and poplar wood
(Univ bio-bio, 2024-01-01) Pelit, Huseyin; Yorulmaz, Ramazan; KFS-4932-2024
Densification modification is an effective method to improve many properties of wood. However, densified wood is sensitive to humidity and is not dimensionally stable. The effect of thermal pretreatments on the dimensional change and humidity sensitivity of densified Picea orientalis (spruce) and Populus nigra (poplar) wood were investigated. A thermal pre-treatment was applied on the wood specimens at 140 degrees C, 160 degrees C, 180 degrees C, and 200 degrees C for 7 h and 9 h. Wood specimens were then compressed at ratios of 20 % and 40 % at a temperature of 150 degrees C. The results showed that spring-back and thickness swelling increased in all specimens (thermally pre-treated and untreated) depending on the increase in compression ratio. However, set-recovery wasdetermined higher at20 % compression ratio.Theequilibrium moisturecontentvaluesof untreated specimens and thermally pre-treated specimens at low temperatures (140 degrees C and 160 degrees C) were found lower than uncompressed specimens. The impact of compression ratio on equilibrium moisture content was not clear. Thermal pretreatments significantly affected the dimensional stability and hygroscopicity of densified specimens (especially poplar wood). Depending on the increase in thermal pre-treatment temperature and duration, spring-back, set-recovery and thickness swelling in wood specimens decreased up to 31 %, 67 % and 62 %, respectively. In addition, equilibrium moisture content and water absorption decreased with the increase in thermal pre-treatment temperature and duration. Moreover, the thermal treatment temperature was more important than duration on the investigated properties.
Highly-miniaturized spacecraft "PlanarSat": Evaluating prospects and challenges through a survey of femto & atto satellite missions
(PERGAMON-ELSEVIER SCIENCE LTD, 2025-07-10) Uludag, Mehmet Sevket; Aslan, Alim Rustem; 0000-0003-0432-0389; LXV-4628-2024; N-9250-2013
As satellite technology advances, there has been a notable trend towards miniaturization, leading to the development of increasingly smaller satellites such as femtosatellites and attosatellites. A new emerging form of such satellites is often called ChipSat, with unique designs that utilize both surfaces of a single plane to maximize functionality within limited dimensions. Initially, the term ChipSat referred to system-on-a-chip satellites but it has since expanded to include centimeter and millimeter scale spacecraft. To provide a clearer terminology, this paper introduces the term "PlanarSat" for such a planar spacecraft. Despite the challenges in deployment and the constraints, such as cost, size, access to space, and capabilities, of miniaturized subsystems, these satellites represent a significant shift in space technology, aiming for costeffective solutions and innovative mission capabilities. This study reviews thirty sub-100-gram satellites, analyzing their design, deployment, and potential for future advancements in a comparative manner. In this study, satellite independence was defined based on system-wise independence, highlighting operational autonomy irrespective of physical connections. The survey's findings highlight technological advancements and potential applications for these very small spacecraft, which are pushing the boundaries of what is feasible with smaller satellites and how these satellites were or planned to be delivered to orbit. The analysis results provide a basic cost comparison, providing information on hardware and launch costs, taking the instantaneous data rate as a reference point, underscoring the need for a new systems engineering approach to the design of such satellites.