Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
Permanent URI for this collectionhttps://hdl.handle.net/11147/7148
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Book Part Corn Oil Blends(Elsevier, 2025) Ozen, B.; Tokatli, F.This book chapter is focused on corn oil blends and their diverse applications. Corn oil, primarily obtained through the extraction of corn germ, is renowned for its high concentration of essential unsaturated fatty acids, particularly linolenic acid as well as tocopherols. Its utility extends beyond the realm of food products, extending into cosmetics, pharmaceuticals, animal feeds, and biodiesel production. The first section of this chapter summarizes the chemical composition and properties of corn oil, highlighting its nutritional attributes. Subsequently, it delves into innovative combinations involving corn oil and other edible oils such as fish, sunflower, coconut, and soybean oils, showcasing the diverse applications of these blended oils. The primary objective of these blends is reported to enhance the oxidative stability of the oils within them. The blends, including corn oil, were investigated for their thermal stability as frying oil. In addition, corn oil is combined with various fats and oils, including tallow and milkfat, for the production of interesterified fats. Furthermore, shortenings incorporate these oil blends, some of which contain corn oil. This chapter also includes examples of research studies assessing the impact of blending on health-related factors. In addition to the practical applications, a considerable portion of research has been dedicated to detecting the presence of corn oil in various oil blends. This is achieved through a combination of spectroscopic approaches and various chemometric methods. © 2026 Elsevier Inc. All rights reserved.Book Part Microbial Production of Aromatic Benzaldehydes (Cherry and Fruit Flavors)(Springer Science+Business Media, 2025) Takma, D.K.; Korel, F.Several aromatic benzaldehydes play crucial role as key constituents in natural flavors, food compositions, and fragrances. Notable examples include benzaldehyde, which imparts distinctive cherry and almond flavors, vanillin and p-hydroxybenzaldehyde, which are responsible for the characteristic profiles of vanilla flavors, 2-hydroxy-4-methoxybenzaldehyde (o-vanillin), a significant component contributing to natural fruit and flower flavors. In addition to their aromatic properties, the industrial importance of these compounds has increased with their various functional properties. The increasing demand for natural compounds in place of synthetic additives has highlighted the microbial production of aromatic benzaldehydes. This review aims to present current information about the properties of aromatic benzaldehydes and their production by various microorganisms. In this context, the production and production conditions of aromatic benzaldehydes by Corynebacterium glutamicum, Pseudomonas putida, Escherichia coli, Bacillus aryabhattai, Pseudomonas fluorescens, Saccharomyces cerevisiae, Pichia pastoris, and many other microorganism species are summarized. Substrates, such as glucose, glycerol, or other carbon sources are utilized for production of benzaldehyde while ferulic acid, eugenol, isoeugenol, or glucose are main substrates converted to vanillin by microrganisms. This chapter can contribute to the determination of new production conditions using different microorganism types, different production conditions, or low-cost raw materials in future studies. © 2025 Springer Nature Switzerland AG.Book Part Influence of High Sustained Axial Stresses on the Seismic Behavior of Full-Scale Substandard Reinforced Concrete Columns(CRC Press, 2025) Gundogan, S.; Demir, U.; Turan, O.T.; Ilki, A.Reinforced concrete (RC) columns are critical structural components that play a decisive role in the seismic performance of buildings. However, the combined effects of long-term sustained axial loads and seismic loading on these columns remain a pressing concern. In particular, design and construction deficiencies, coupled with material deterioration, often result in substandard RC columns experiencing long term axial stresses that far exceed typical service levels. These elevated stress conditions can lead to significant structural vulnerabilities, manifesting as collapses under seismic actions or even under gravity loads alone. Within this context, this study aims to investigate the impact of such high sustained axial stresses on the response of substandard reinforced concrete columns prior to be subjected to reversed cyclic lateral loading simulating seismic actions. For this purpose, two full-scale columns were tested under the combined actions of axial load and reversed cyclic lateral displacements. One of two columns were tested after it was exposed to a sustained axial load of 825 kN, corresponding to 70% of axial load capacity (fbh) for a duration of six months, while the other column was tested as the reference specimen right after it was subjected to same level of axial load. Comprehensive instrumentation during testing and detailed creep analysis under long-term applied axial loads were conducted to evaluate the response of the columns. The findings highlight the significant impact of long-term high axial stress on the seismic performance of substandard RC columns. © 2025 selection and editorial matter, Alphose Zingoni; individual chapters, the contributors. All rights reserved.Book Part 25 Years of FRP Research at Istanbul Technical University(CRC Press, 2025) Ilki, A.; Sari, B.; Goksu, C.; Demir, C.; Demir, U.; Töre, E.The application of fiber-reinforced polymer (FRP) composites for structural strengthening and seismic retrofitting has significantly advanced in recent decades. This study presents a com-prehensive review of FRP research conducted at Istanbul Technical University (ITU) in the last 25 years, which has closely aligned with global developments in the field. The research at ITU has focused parti-cularly on addressing the substandard characteristics prevalent in Türkiye's building stock. Investigations have spanned a wide range of specimens, from small-scale concrete prisms to full-scale three-dimensional reinforced concrete (RC) buildings. Key focus areas have included FRP applications for ductility enhancement, flexural strengthening and seismic retrofitting of structural members. Various FRP mate-rials have been examined, including aramid, glass, carbon, basalt and PET fibers. Multiple application techniques have been explored, ranging from externally bonded reinforcement to textile reinforced sprayed mortar. The findings from these extensive studies have consistently demonstrated the efficacy of FRP composites in enhancing the structural performance and seismic resilience of substandard buildings. This body of research has made significant contributions to the development of practical retrofit solutions tailored to the specific challenges posed by Türkiye's existing building stock and has broader implications for seismic risk mitigation in countries with similar construction practices. © 2025 selection and editorial matter, Alphose Zingoni; individual chapters, the contributors. All rights reserved.Book Part Smart Planning Tools(Edward Elgar Publishing Ltd., 2025) Velibeyoǧlu, K.; Özden, P.This is a definition of smart planning tools in the Thematic Encyclopedia of Regional Science. This thematic Encyclopedia explores the multifaceted world of regional science, presenting a systematic and coherent overview of its central topics. It highlights the field’s interdisciplinary nature, examining the wide range of concepts, theories, methods, and models that shape spatial-oriented approaches to the social sciences. Contributions from expert scholars delve into key aspects of regional science, from urban poverty and natural resource management to smart cities and AI. Highly accessible entries cover the definition, history, theoretical background, and applications of each topic and avenues for future research. © 2025 Elsevier B.V., All rights reserved.Book Part City Size(Edward Elgar Publishing Ltd., 2025) Duran, H.E.This is a definition of city size in the Thematic Encyclopedia of Regional Science. This thematic Encyclopedia explores the multifaceted world of regional science, presenting a systematic and coherent overview of its central topics. It highlights the interdisciplinary nature of the field, examining the wide range of concepts, theories, methods and models that shape spatial-oriented approaches to the social sciences. Contributions from expert scholars delve into key aspects of regional science, from urban poverty and natural resource management to smart cities and AI. Highly accessible entries cover the definition, history, theoretical background, and applications of each topic, as well as avenues for future research. © 2025 Elsevier B.V., All rights reserved.Book Part Rural Development(Edward Elgar Publishing Ltd., 2025) Gkartzios, M.This is a definition of rural development in the Thematic Encyclopedia of Regional Science. This thematic Encyclopedia explores the multifaceted world of regional science, presenting a systematic and coherent overview of its central topics. It highlights the interdisciplinary nature of the field, examining the wide range of concepts, theories, methods and models that shape spatial-oriented approaches to the social sciences. Contributions from expert scholars delve into key aspects of regional science, from urban poverty and natural resource management to smart cities and AI. Highly accessible entries cover the definition, history, theoretical background, and applications of each topic, as well as avenues for future research. © 2025 Elsevier B.V., All rights reserved.Book Part Analysis of Urban Form(Edward Elgar Publishing Ltd., 2025) van der Laag Yamu, C.; Can Traunmüller, I.This is a definition of the analysis of urban form in the Thematic Encyclopaedia of Regional Science. This thematic encyclopaedia explores the multifaceted world of regional science, presenting a systematic and coherent overview of its central topics. It highlights the interdisciplinary nature of the field, examining the wide range of concepts, theories, methods, and models that shape spatial-oriented approaches to the social sciences. Contributions from expert scholars delve into key aspects of regional science, from urban poverty and natural resource management to smart cities and AI. Highly accessible entries cover the definition, history, theoretical background, and applications of each topic, as well as avenues for future research. © 2025 Elsevier B.V., All rights reserved.Book Part Rural-Urban Dichotomy(Edward Elgar Publishing Ltd., 2025) Gkartzios, M.This is a definition of the rural-urban dichotomy in the Thematic Encyclopedia of Regional Science. This thematic Encyclopedia explores the multifaceted world of regional science, presenting a systematic and coherent overview of its central topics. It highlights the interdisciplinary nature of the field, examining the wide range of concepts, theories, methods and models that shape spatial-oriented approaches to the social sciences. Contributions from expert scholars delve into key aspects of regional science, from urban poverty and natural resource management to smart cities and AI. Highly accessible entries cover the definition, history, theoretical background, and applications of each topic, as well as avenues for future research. © 2025 Elsevier B.V., All rights reserved.Book Part Monocentricity and Polycentricity(Edward Elgar Publishing Ltd., 2025) Elburz, Z.This is a definition of monocentricity and polycentricity in the Thematic Encyclopedia of Regional Science. This thematic Encyclopedia explores the multifaceted world of regional science, presenting a systematic and coherent overview of its central topics. It highlights the interdisciplinary nature of the field, examining the wide range of concepts, theories, methods and models that shape spatial-oriented approaches to the social sciences. Contributions from expert scholars delve into key aspects of regional science, from urban poverty and natural resource management to smart cities and AI. Highly accessible entries cover the definition, history, theoretical background, and applications of each topic, as well as avenues for future research. © 2025 Elsevier B.V., All rights reserved.