Yazar "0000-0003-0178-329X" için Scopus İndeksli Yayınlar Koleksiyonu listeleme
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Assessment of Böhme Abrasion Value of Natural Stones through Artificial Neural Networks (ANN)
Strzalkowski, Pawel; Köken, Ekin (MDPI, 2022)This present study explored the Böhme abrasion value (BAV) of natural stones through artificial neural networks (ANNs). For this purpose, a detailed literature survey was conducted to collect quantitative data on the BAV ... -
Assessment of Deformation Properties of Coal Measure Sandstones Through Regression Analyses and Artificial Neural Networks
Köken, Ekin (Polska Akademia Nauk, 2021)The deformation properties of rocks play a crucial role in handling most geomechanical problems. However, the determination of these properties in laboratory is costly and necessitates special equipment. Therefore, many ... -
ASSESSMENT OF LOS ANGELES ABRASION VALUE (LAAV) AND MAGNESIUM SULPHATE SOUNDNESS (Mwl) OF ROCK AGGREGATES USING GENE EXPRESSION PROGRAMMING AND ARTIFICIAL NEURAL NETWORKS
Koken, Ekin (POLSKA AKAD NAUK, POLISH ACAD SCIENCES, 2022)It has been acknowledged that two important rock aggregate properties are the Los Angeles abrasion value (LAAV) and magnesium sulphate soundness (Mwl). However, the determination of these properties is relatively challenging ... -
Assessment of Rock Aggregate Quality Through Fuzzy Inference System
Koken, Ekin; Baspinar Tuncay, Ebru (SPRINGER, 2022)In this study, Fuzzy Inference System (FIS) was adopted to evaluate the rock aggregate quality. For this purpose, some technical standards for coarse aggregates were integrated into the FIS analyses as threshold values. ... -
Assessment of Rock Aggregate Quality Through the Analytic Hierarchy Process (AHP)
Koken, Ekin; Top, Soner; Ozarslan, Ahmet (SPRINGER, VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS, 2020)The present study aimed to assess rock aggregate quality through the Analytic Hierarchy Process (AHP). In the context of the AHP analyses, four rock types (i.e., andesite, basalt, granodiorite, and gabbro), five evaluation ... -
A comparative study to estimate the mode I fracture toughness of rocks using several soft computing techniques
Köken, Ekin; Kadakçı Koca, Tümay (Mersin Üniversitesi, 2023)Fracture toughness is an important phenomenon to reveal the actual strength of fractured rock materials. It is, therefore, crucial to use the fracture toughness models principally for simulating the performance of fractured ... -
Estimation of cohesion for intact rock materials using regression and soft computing analyses
Köken, Ekin; Strzałkowski P.; Kazmierczak U. (Institute of Physics, 2024)Shear strength parameters such as cohesion (c) and internal friction angle (.) are among the most critical rock properties used in the geotechnical design of most engineering projects. However, the determination of these ... -
Evaluation of size reduction process for rock aggregates in cone crusher
Koken, Ekin (SPRINGER HEIDELBERG, TIERGARTENSTRASSE 17, D-69121 HEIDELBERG, GERMANY, 2020)The size reduction process of rocks in cone crushers is one of the most important issues, particularly for the secondary and tertiary stages of crushing operations. In this study, 17 different rock types were considered ... -
Evaluation of Soft Computing Methods for Estimating Tangential Young Modulus of Intact Rock Based on Statistical Performance Indices
Koken, Ekin; Kadakci Koca, Tumay (SPRINGER, 2022)The tangential Young modulus (E-ti) of intact rock is a critical parameter in engineering geological design calculations and rock mass classification systems. The E-ti of various rock types has been successfully estimated ... -
An experimental investigation on rock crushability using jaw and cone crushers
Köken, Ekin; Bilen, M.; Özarslan, A.; Barış, K. (Baski, 2019)This study covers the investigation of rock crushability using laboratory-scale cone and jaw crushers for five types of hardrocks. For this purpose, physico‒mechanical properties of the investigated rocks are determined. ... -
Guidelines for Natural Stone Products in Connection with European Standards
Strzalkowski, Pawel; Köken, Ekin; Sousa, Luís (MDPI, 2023)The selection of ornamental stones for specific applications requires technical guidance since it should be based on the durability, service life, and aesthetic value of the stones. In most cases, these fundamentals provide ... -
Influence of Basalt Aggregate Crushing Technology on Its Geometrical Properties—Preliminary Studies
Duchnowska, Magdalena; Strzałkowski, Paweł; Bakalarz, Alicja; Kaźmierczak, Urszula; Köken, Ekin; Karwowski, Piotr; Wolny, Michał; Stępień, Tomasz (MDPI, 2023)The use of mineral aggregates is related to the increasing demand in construction, railway and road infrastructures. However, mineral aggregates can appear to be of variable quality, directly affecting their suitability ... -
Investigations on Fracture Evolution of Coal Measure Sandstones from Mineralogical and Textural Points of View
Koken, Ekin (SPRINGER INDIA, 7TH FLOOR, VIJAYA BUILDING, 17, BARAKHAMBA ROAD, NEW DELHI, 110 001, INDIA, 2020)The purpose of the present study is to investigate the variations in fracture evolution of sandstones arising from mineralogical and textural features. For this purpose, eight types of coal measure sandstones located in ... -
On the variation in several rock properties due to magnesium sulfate weathering tests ‒ a case study for limestones
Köken, Ekin (International Multidisciplinary Scientific Geoconference, 2019)Contributions to the behavior of rock materials under various conditions provide a practical knowledge about issues relating the performance and long-term serviceability of rocks. In this study, various limestones with ... -
A Probability-Based Evaluation on Andesites for Their Use as Cladding Stone
Köken, Ekin; Tuncay, Ebru Başpınar (Shahrood University of Technology, 2022)Andesites with a satisfactory quality have been mainly considered as dimension stones worldwide. However, practical approaches are required to evaluate the dimension stone quality due to the increasing demand for natural ... -
Size Reduction Characterization of Underground Mine Tailings: A Case Study on Sandstones
Koken, Ekin (SPRINGER, VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS, 2020)The production of construction and building materials starts with reducing the size of natural, industrial, and waste materials. In addition to strength and durability considerations of natural resources recommended by ...