Arama Sonuçları

Listeleniyor 1 - 10 / 13
  • Yayın
    Evaluation of wooden structures
    (Springer, 2019) Koca, Gülru
    In order to preserve the architectural heritage and sustainability of cities, the accurate evaluation of the mechanical properties of existing buildings is crucial. While inorganic building materials such as natural stones can be evaluated more easily, it is difficult to accurately assess the mechanical properties of wood. Mistaken evaluations of structural wooden members may lead to large-scale replacements in the maintenance and restoration of buildings. The techniques used in the evaluation of wood are; destructive, semi-destructive and non-destructive tests. Although destructive tests give accurate information about the mechanical properties of wood, they are not preferred in the evaluation of the existing structures because they cause the loss of structural integrity. The semi-destructive and non-destructive methods are being widely used for the last decades in the evaluation of structural wooden members. As these techniques do not give harm to the structural members, they allow the in situ evaluation of wooden structures. While semi-destructive tests are carried out with the extraction of a small piece without influencing the mechanical properties of wood, non-destructive techniques are carried out with the help of small devices in order to detect the interior defect and deteriorations. In this study, it is aimed to give information about some of the most used semi-destructive and non-destructive test methods.
  • Yayın
    Landscape ecological evaluation of cultural patterns for the Istanbul urban landscape
    (MDPI, 2022-12) Aksu, Gül Aslı; Tağıl, Şermin; Musaoğlu, Nebiye; Seyek Canatanoğlu, Emel; Uzun, Adnan
    With the widespread population growth in cities, anthropogenic influences inevitably lead to natural disturbances. The metropolitan area of Istanbul, with its rapid urbanization rate, has faced intense pressure regarding the sustainability of urban habitats. In this context, landscapes comprising patches affected by various disturbances and undergoing temporal changes must be analyzed, in order to assess city-related disturbances. In this study, the main objective was to understand how urbanization changed the function of the spatial distribution of the urban mosaic and, more specifically, its relationship with the size, shape, and connection among land-use classes. For this purpose, we took Besiktas, a district of Istanbul, as the study area. We evaluated the landscape pattern of the urban environment in two stages. First, we used medium-resolution satellite imagery to reveal the general interactions in the urbanization process. Landscape- and class-level landscape metrics were selected to quantify the landscape connectivity, and the distances between classes (green areas and artificial surfaces), patterns, and processes, using five satellite images representing a time span of 51 years (1963, 1984, 1997, 2005, and 2014). The general landscape structure was examined by looking at the temporal–spatial processes of artificial surface and green areas obtained from these medium-resolution satellite images. The trends in selected landscape-level metrics were specified and discussed through the use of a moving window analysis. We then used Pleiades high-resolution satellite imagery (2015) to analyze the landscape structure in more detail. This high-resolution base image allows us to recognize the possibility of classifying basic cultural landscape classes. The findings regarding the spatial arrangement of each class in the areas allocated to 14 cultural landscape classes were interpreted by associating them with the landscape functions. Finally, particulate matter (PM10) concentration data were collected and evaluated as an ecological indicator, in order to reveal the relationships between landscape structure and landscape function. In short, we first evaluated the whole landscape structure using medium-resolution data, followed by the classification of cultural landscapes using high-resolution satellite imagery, providing a time-effective—and, therefore, essential—auxiliary method for landscape evaluation. This two-stage evaluation method enables inferences to be made that can shed light on the landscape functions in an urban environment based on the landscape structure.
  • Yayın
    Analysing gender equality and empowerment in Turkish companies: an exploratory case to achieve United Nation’s sustainability goal
    (PressAcademia, 2023-06-30) Dönmez, Sena; Tuncay Çelikel, Aslı
    Purpose- United Nations' Sustainability Goal 5, "Achieving Gender Equality and Empower All Women and Girls," is a critically important topic in today's sustainability agenda. This exploratory case study aims to delve into the current status of gender equality and women's empowerment in Turkish businesses. Furthermore, it seeks to propose a roadmap with thematic areas that can guide companies in fulfilling Goal 5. Methodology- For this qualitative research, the study engaged professionals in Türkiye, specifically in the manufacturing and logistics industries in Istanbul. The research employed both preliminary and face-to-face interviews to gather insights from experts in the field of sustainability and those working on SDG 5. The preliminary phase involved two managers, while the subsequent face-to-face interviews involved five key experts. A total of ten open-ended questions were posed to representatives from five companies, comprising sustainability managers and specialists from the manufacturing and logistics sectors. Findings- Sustainable Development Goal 5 (SDG 5) literature revealed various themes related to gender equality and empowerment, encompassing gender-neutral decision making, a person’s well-being, creating safe spaces, gender equality role in value chain, environmental impact, ethical considerations, awareness, and empowerment linked to leadership. The qualitative research findings were significant to shape a future plan. Based on the research results, ten thematic areas for companies was developed by the authors. Roadmap Thematic Areas for Companies: Breaking gender stereotypes for gender-neutral career, promoting social sustainability through training opportunities, implementing gender-neutral recruitment practices, adopting gender-neutral policies in all decision making processes, establishing an egalitarian environment within the value chain and permissions, addressing global deficiencies in training to eliminate gender prejudices and promoting access to health and medicines, maintaining work-life balance, supporting advancement of employees with trainings, considering benefits of society on environmental impacts and raising public awareness by ensuring ethics. Conclusion- The development of Sustainable Development Goal 5 (SDG 5) relies heavily on social, economic, and environmental factors, particularly concerning leadership. This case study underscores the need for Turkish companies to prioritize gender equality and women's empowerment initiatives, as their efforts will contribute to broader sustainability endeavors within the country. By actively embracing the proposed roadmap's strategies, businesses can pave the way for a more inclusive and sustainable future for all individuals in Türkiye.
  • Yayın
    A decision making support tool for selecting green building certification credits based on project delivery attributes
    (Pergamon-Elsevier Science Ltd, 2017-12) Seyis Kazazoğlu, Senem; Ergen Pehlevan, Esin
    The Green Building (GB) certification process embodies detailed requirements and specifications that lead to additional tasks for project teams, which increases complexity levels of the entire project delivery process. Previous studies show that if the GB certification credits to be fulfilled are selected without considering project team attributes, then elevated levels of time, money, and labor could get wasted while attempting to meet the additional requirements of GB certification. The aim of this study is to develop a multi-attribute decision making (MADM) support tool to be used by GB experts to select the appropriate GB certification credits based on the project team attributes. The developed framework with relative weights assigned via the Delphi method was used to perform the MADM analysis, which employs the hybrid use of the Multi Attribute Utility Technique (MAUT) and the Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS). This paper presents the developed MADM tool (i.e., GB-CS tool) and the relative weights of the attributes that were determined following expert opinions. To validate the tool, a case study was conducted at a LEED-registered residential project. The results show that the GB-CS Tool was successful in ranking the GB certification credits to be selected. This hybrid MADM tool can be used for preventing disruptions and bottlenecks in GB project delivery processes by assisting the owners/GB consultants in effectively selecting suitable GB certification credits based on the project team attributes. Thus, with the assistance of the GB-CS tool, root causes of waste can be mitigated in the GB project delivery process, decreasing associated hidden costs.
  • Yayın
    Earthquakes, sustainable settlements and traditional construction techniques
    (Mehmet Topçu, 2023-12-31) Koca, Gülru
    Urbanization is increasing all around the world due to population growth and big cities receive a high volume of migrants due to economic and social reasons. However, rapid population growth should be prevented in big cities in order to provide comfortable living conditions to the population. When urban planning practices do not catch the speed of urbanization; the tendency towards vertical architecture increases, the amount of green space decreases and problems related to unplanned urbanization come to the fore. These important problems, which have considerably increased recently in Türkiye, may lead greater problems in many respects. The parallel and self-sufficient development of urban and rural areas, which is defined as urban sustainability, is considered as the best-case scenario in urban planning practices. This aim is adopted nowadays by most of the countries in the world as it prevents rapid population growth in cities and depopulation in rural areas. Decisions which are taken to ensure urban sustainability are important for all countries. However, these decisions become even more important in regions with disaster risk. As the majority of Türkiye’s land area is under seismic risk, the problems which may arise due to rapid urbanization during an earthquake should be prevented. The damage and losses which could occur during an earthquake and the security, health, education problems which will arise after the earthquake can be solved by preventing dense housing and uncontrolled migration in urban areas. The connection between urban and rural areas should be strengthened. Besides, the social and economic sustainability of the rural area should be ensured. Settlements should be designed away from fault lines with a holistic approach as “living spaces” which consist components such as; transportation, infrastructure, green spaces and educational spaces. Additionally; the use of appropriate construction techniques and materials should be accepted as a priority. In this context, it can be mentioned that traditional building techniques, which have been developed over centuries and whose deficiencies have been improved during this period, should be preferred especially in rural areas. In this study, the criteria that gain importance in the construction of earthquake resistant and sustainable settlements are evaluated on Türkiye case. The precautions which should be taken to ensure rural sustainability and to prevent the depopulation of rural areas are emphasized. Within this scope, the importance of protecting the architectural texture and regenerating traditional building culture was discussed in constructing earthquake resistant settlements.
  • Yayın
    Evaluation of traditional Sirince houses according to sustainable construction principles
    (Selcuk Univ, 2019-06) Koca, Gülru
    Sirince is a village which has unique traditional building samples and which is heavily influenced by the influx of tourists in the summer season for the last decade. Many buildings in Sirince have changed function due to tourism activities and a significant amount of them have been renovated. Besides, some new buildings has been constructed from modern building materials such as reinforced concrete in the settlement. Since the management plan has not yet put into force in the region, excessive interventions can be seen in renovations and restorations. However, the settlement is still facing a decrease in population for some reasons. In order to preserve the population of Sirince the sustainability of the region has to be ensured and the existing historical and architectural texture has to be preserved. This study mainly focuses on the evaluation of Sirince according to sustainable construction principles and suggests some interventions in order to increase the sustainability. As a first statement it can be mentioned that, tourism has to be viewed as a means rather than an end to improve the sustainability of the settlement. The constructions has to be carried out according to ecology based principles, a healthy built environment has to be created and non-renewable natural sources has to be used efficiently to increase the sustainability in constructions. Excessive restoration interventions has to be prevented, traditional materials and techniques has to be preserved. Reusing and recycling of materials has to be evaluated in order to make environment-friendly applications.
  • Yayın
    Analyzing the impact of brand sustainability practices on brand loyalty
    (Işık Üniversitesi, 2024-02-12) Audi, Umar Goni; Develi, Evrim İldem; Işık Üniversitesi, Lisansüstü Eğitim Enstitüsü, Yöneticiler için İşletme Yönetimi Yüksek Lisans Programı; Işık University, School of Graduate Studies, Executive Master of Business Administration
    This study delves into the impact of sustainability practices on brand loyalty, particularly within the fast-fashion industry. It addresses the growing consumer awareness of how fast-fashion brands manage their environmental and ethical responsibilities and how such practices influence consumer loyalty. The research posits that effective communication of sustainability initiatives via social media can significantly enhance consumer trust, satisfaction, and engagement, thereby fostering greater brand loyalty. However, the challenge lies in managing these digital platforms to prevent the dissemination of content that could damage the brand's reputation. Utilizing a quantitative research method, a cross-sectional survey was distributed across multiple social media channels to analyze the interconnections between sustainability practices and their effect on brand loyalty, alongside variables such as satisfaction, trust, and engagement. The analysis, conducted using SPSS, employed various statistical tools and demonstrated a positive link between transparent sustainability practices and brand loyalty. The findings reinforce the importance of sustainability in strengthening brand loyalty in the fast-fashion industry. This study, while providing valuable insights, acknowledges limitations due to its specific demographic focus and the concentration on a single industry sector.
  • Yayın
    Forecasting and analysis of energy consumption and waste generation in Antalya with SVR
    (IEEE, 2023-12-24) Özçelik, Şuayb Talha; Tek, Faik Boray; Şekerci, Erdal
    Antalya, a rapidly expanding coastal city in Türkiye, has experienced significant changes due to urbanization and increasing tourism activities. Comprehending tourism trends is crucial for the city's sustainable development and environmental management. Based on this perspective, this paper aims to present a comprehensive retrospective analysis of Antalya's energy consumption, domestic solid waste generation, wastewater generation, population growth, and tourist numbers over the years. Antalya faces significant challenges due to escalating trends in listed areas. Utilizing the Support Vector Regression, this study projects a need for an additional 1715 GWh of electricity production capacity, an expansion of wastewater capacity by 85639 thousand m3, and an increase in domestic solid waste disposal capacity by 597745 tons by 2028 to accommodate growing demands. We emphasize the importance of adopting effective policies and strategies to support energy efficiency, waste reduction, and wastewater management alongside sustainable urban planning and tourism management for Antalya's long-Term environmental sustainability and development. The findings presented in this study provide valuable insights for policymakers, urban planners, and stakeholders to make informed decisions, ensuring a balanced approach toward economic growth and environmental conservation.
  • Yayın
    Gender equality and empowerment for companies: an exploratory case from Turkiye to achieve United Nation’s sustainability goal
    (PressAcademia, 2023-07-30) Dönmez, Sena; Tuncay Çelikel, Aslı
    Purpose- The business world is currently placing great emphasis on sustainability, investing substantial resources to integrate it into their operations. United Nation’s Sustainability Goal 5 of “Achieving Gender Equality and Empower All Women and Girls” is a critically important subject to discuss both for academics and practioners regarding today’s sustainability related concerns and debates. This exploratory case study aims to understand the current situation of gender equality and women empowerment in business and propose a roadmap with thematic areas for companies via achievement of Goal 5. Methodology- We aim to understand the perspectives of the the professionals in Turkey; first preliminary interviews and then face-to-face interviews were applied in manufacturing and logistics industries in Istanbul. The preliminary interview was held with two managers and afterwards, five experts in the field of sustainability and working on SDG 5 were interviewed. A total of ten open-ended questions were posed to representatives from five companies in the manufacturing and logistics sectors during face-to-face interviews. Findings- The literature review on Sustainable Development Goal 5 (SDG 5) revealed various themes related to gender equality and empowerment, including gender-neutral decision making, ensuring well-being of the individual, creating safe spaces, role of value chain for gender equality, environmental impact, ethical approach, awareness, and empowerment in correlation with empowerment and leadership. Based on the research findings, a roadmap with ten thematic areas was developed, including: 1. Breaking gender streotypes for genderneutral career, 2. Promoting social sustainability through training opportunities, 3. Implementing gender-neutral recruitment practices, 4. Adopting gender-neutral policies in all decision making processes, 5. Establishing an egalitarian environment within the value chain and permissions, 6. Addressing global deficiencies in training to eliminate gender prejudices and promoting access to health and medicines, 7. Maintaining work-life balance, 8. Supporting advancement of employees with trainings, 9. Considering benefits of society on environmental impacts and 10. Raising public awareness by ensuring ethics. Conclusion- Social, economic, and environmental factors play a very distinctive role in the development of SDG 5 target in leadership. Companies in Turkey are encouraged to prioritize gender equality and women empowerment programs, as their policies will contribute to broader efforts within the country. By actively working towards these goals, businesses can foster a more inclusive and sustainable future for all.
  • Yayın
    Sustainable soil stabilization using colemanite: experimental and numerical analysis of sandy soils for improved geotechnical properties
    (Springer Nature, 2025-06-12) Koçak Dinç, Beste; Dehghanian, Kaveh; Etminan, Ehsan
    This paper discusses the use of colemanite, a boron compound, which is a natural additive to geotechnically improved sandy soils, thus providing an eco-friendly alternative to conventional soil stabilization. Clean angular sand was the base material with the addition of colemanite in amounts of 0%, 5%, 10%, and 15% by dry mass. Various laboratory tests, such as Atterberg limits, void ratio, specific gravity, compaction, permeability, and unconsolidated undrained triaxial tests, were carried out to determine the physical and mechanical characteristics of the produced mixtures. Numerical modeling, adopted by the PLAXIS finite element program, was used to carry out simulations under various conditions for soil profiles to determine and compare soil behavior. The findings revealed that the addition of colemanite significantly reduced permeability and void ratios while enhancing stiffness and strength, with 15% colemanite yielding the best performance. This study is one of those that focuses on the introduction of colemanite, which can also act as an effective stabilizer and is a much greener and more environmentally friendly option. Apart from this, it has other advantages both economically and ecologically by reducing the amount of cement, which is a high carbon source required for building based on this. The discoveries bring in the further development of green geotechnical engineering, which also includes the construction of sustainable infrastructures.