Scopus İndeksli Yayınlar Koleksiyonu

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Citation - WoS: 3
Citation - Scopus: 3
A COMPARATIVE STUDY ON THE EXERGOECONOMIC ANALYSIS OF TEXTILE DRYERS USING SPECO METHOD
(EGE UNIV, 2012) Ahmet Cay; Isik Tarakcioglu; Arif Hepbasli; Hepbaşlı, Arif; Çay, Ahmet; Tarakçıoğlu, Işık
This study reveals the exergoeconomic analysis of stenters by using Specific Exergy Costing (SPECO) method. The cost balances and auxiliary thermoeconomic relations were developed for direct gas heated (DGHS) and hot oil heated (HOHS) stenters by the application of the control volume models. The exergy cost of the evaporation of water was selected to be the main parameter. It was shown that the falling-rate period of drying led to the highest exergy costs while exergy costs varied between 0.19 US$/GJ and 0.59 US$/GJ depending on the drying periods. Increasing the exhaust air humidity ratio and the residual moisture content of the fabric outlet decreased the exergy costs linearly.
Citation - WoS: 1
Citation - Scopus: 2
A Comparison of the Antecedents of Organizational Identification and Affective Commitment
(TURKISH PSYCHOLOGISTS ASSOC, 2015) Evrim Guleryuz; Orhan Aydm; Guleryuz, Evrim; Aydm, Orhan
The present study was sought to clarify various antecedents of organizational identification and affective commitment. Data were obtained from 444 employees of various public and private organizations. Two hierarchical regression analysis were conducted to find out the differences in the relationships of organizational identification affective commitment and their antecedents. It was found that strength of organizational identity perceived external prestige person-organization fit and need for affiliation predicted both organizational identification and affective commitment. Besides this organization-based self-esteem predicted organizational identification but not affective commitment and job satisfaction predicted affective commitment but not organizational identification. It was also found that self-esteem distributional justice procedural justice and interactional justice were not predicted any of these constructs.
Citation - WoS: 20
Citation - Scopus: 21
A critical review on classification and terminology of scissor structures
(Int. Association for Shell and Spatial Structures, 2019-03-01) Feray Maden; Yenal Akgün; Gökhan Kiper; Şebnem Gür; Müjde Yar; Koray Korkmaz; Korkmaz, Koray; Yar, MÜJde; Kiper, GÖKhan; Akgun, Yenal; Maden, Feray; Gur, Sebnem
When the existing literature on the research of scissor structures is thoroughly investigated it is seen that different researchers use different terminologies and classifications especially for the definition of the primary units and the motion type. Some of the studies define the whole geometry based on the geometric properties of the primary scissor units and the unit lines while some other studies define it according to the loops. All these studies use different names for similar elements. This article aims to review the literature on the classification and terminology of scissor structures and represent the state of art on the studies. Tables are represented showing all approaches in the literature. In addition the article criticizes the missing points of each terminology and definition and proposes some new terminology. In order to arrive at this aim different definitions of the primary scissor units and motion types used in key studies in the literature are investigated thoroughly. With several examples it is demonstrated that naming the scissor units according to the resulting motion type might be misleading and it is better to specify the motion type for the whole structure. A classification for transformation of planar curves is presented. © 2019 Elsevier B.V. All rights reserved.
Citation - Scopus: 1
A New Perspective for Construction Supply Chains in Digital Era
(UNIV TUN HUSSEIN ONN MALAYSIA, 2024-03-03) Ozlem Koctas-Cotur; Yesim Deniz Ozkan-Ozen; Yucel Ozturkoglu; Ozkan-Ozen, Yesim Deniz; Ozturkoglu, Yucel; Koctas-Cotur, Ozlem
The construction industry is a highly labor-intensive industry with a low degree of automation and digitization. However as in the manufacturing industry a 'new order' is emerging for the way the construction industry works today. This study aims to present the transformation of construction supply chains (CSCs) in Industry 4.0 by considering each supply chain stage separately where the main purpose is to determine the criteria for the integration of the CSC with the Industry 4.0 perspective. A literature review and a Delphi study were conducted and thirteen criteria are proposed to show the integration of Industry 4.0 aspects and CSC stages. Furthermore one of the multi -criteria decision -making (MCDM) methods the Best -Worst method is used to prioritize the criteria for guiding future implications during the transformation of construction supply chains. Among the six CSC stages the design stage is the most important from the Industry 4.0 perspective. In addition client collaboration by ICT (BIM) during the design phase is the most important sub -factors' overall rank. Although there is a limited number of studies on the CSC there are no empirical studies addressing the current digital age approach. As a result there is a significant gap in the construction literature and a thorough assessment of the building supply chain in an Industry 4.0 setting is lacking. To the best of the authors' knowledge this is the first study to illustrate the transformation of CSCs in Construction 4.0 by looking at each supply chain stage separately.
A novel framework to evaluate the performance of responsive kinetic shading devices
(LLC Editorial of Journal "Light Technik" lights-nr@inbox.ru VNISI rooms 327334106 Prospect Mira Moscow 129626, 2019-02) Mustafa Teksoy; Onur Dursun; Teksoy, Mustafa; Dursun, Onur
Determining control parameters of kinetic shading devices introduces a dynamic problem to designers which can best be tackled by computational tools. Yet excessive computational cost inherits in reaching near optimum solutions led to exclusion of many design alternatives and weather conditions. Addressing the issue the current study aims to explore the design space adequately and evaluate the performance of responsive-kinetic shading devices (RKSD) by proposing a novel framework. Current framework adopts a surrogate-based technique for multi-objective optimization of control parameters of a RKSD on randomly sampled daylight hours. To test the plausibility of any results obtained by the proposed framework a controlled experiment is designed. Empirical evidences suggest RKSD outperforms the static one in daylighting and view performance metrics. However considering indoor temperature no significant differences observed. © 2020 Elsevier B.V. All rights reserved.
Citation - WoS: 3
Citation - Scopus: 2
A Parallel Connected Hybrid Microstrip-Substrate Integrated Waveguide Bandstop Filter
(KAUNAS UNIV TECHNOLOGY, 2023-12-22) Kemal Guvenli; Sibel Yenikaya; Mustafa Secmen; Guvenli, Kemal; Yenikaya, Sibel; Secmen, Mustafa
This study presents an original parallel connected hybrid microstrip-substrate integrated waveguide (PCHMSIW) bandstop filter. A low-pass filter implemented on a microstrip structure and a SIW-based high-pass filter are connected in parallel to each other. In this way the aim is to obtain a bandstop filter in the novel hybrid design. The parallel connected hybrid microstrip-substrate integrated waveguide (PCHM-SIW) bandstop filter is synthesised simulated and produced. The effects of connecting filters in parallel are discussed. It is seen from the results of CST Studio Suite simulation that PCHM-SIW bandstop filter has a bandwidth of 2.85 GHz and a center frequency of 4.26 GHz. The frequency change rate of the center frequency between simulation and measurement is 7.02 % where it is just 3.76 % for the deviation in bandwidth. The results of the simulation and those of the measurement are close to each other. These results converge to ideal analytical results.
Citation - WoS: 1
Citation - Scopus: 1
A Pattern Mining Approach for Improving Speech Emotion Recognition
(WORLD SCIENTIFIC PUBL CO PTE LTD, 2022-11) Umut Avci; Avci, Umut
Speech-driven user interfaces are becoming more common in our lives. To interact with such systems naturally and effectively machines need to recognize the emotional states of users and respond to them accordingly. At the heart of the emotion recognition research done to this end lies the emotion representation that enables machines to learn and predict emotions. Speech emotion recognition studies use a wide range of low-to-high-level acoustic features for representation purposes such as LLDs their functionals and BoAW. In this paper we present a new method for extracting a novel set of high-level features for classifying emotions. For this purpose we (1) reduce the dimension of discrete-time speech signals (2) perform a quantization operation on the new signals and assign a distinct symbol to each quantization level (3) use the symbol sequences representing the signals to extract discriminative patterns that are capable of distinguishing different emotions from each other and (4) generate a separate set of features for each emotion from the extracted patterns. Experimental results show that pattern features outperform Energy Voicing MFCC Spectral and RASTA feature sets. We also demonstrate that combining the pattern-based features and the acoustic features further improves the classification performance.
A REVIEW ON COMPUTATIONAL FLUID DYNAMICS SIMULATION METHODS FOR DIFFERENT CONVECTIVE DRYING APPLICATIONS
(VINCA INST NUCLEAR SCI, 2023) Seda Ozcan Coban; Fatih Selimefendigil; Hakan Fehmi Oztop; Arif Hepbasli
This paper focuses on the CFD studies on one of the commonly used drying pro-cesses for different applications. First a brief information about drying is given with determining important properties that effect drying characteristics. Next ba-sic principles of CFD modelling are explained while capabilities of computational processing are presented. A detailed literature survey about CFD studies in con-vective drying process is then conducted. Finally some sound concluding remarks are listed. It may be concluded that the CFD is a powerful and flexible tool that can be adopted to many different physical situations including complex scenarios results of CFD simulations represent good predictions for fluid-flow heat and mass transfer of various drying methods and those numerical studies can be used for validation and controlling of applicability of new drying systems.
A short overview of energy production based CO2 emissions and wind power development strategy for Turkey
(TAYLOR & FRANCIS INC, 2016-01-02) C. Sevim
Energy is one of the main sources of economical and social developments. Energy demand is increasing day by day on both the global and national scale of many countries. The current energy paradigm is based on fossil fuels but fossil energy sources decrease day by day and go through to a death point. While this process happens fossil sources constitute the main source of carbon dioxide (CO2) emissions. At this point the usage and spread of renewable energy sources is taking a place on the agenda of many countries.Wind energy systems have a high learning curve value (92%) and when making a comparison between wind energy and other renewable energy systems according to cost and efficiency parameters wind energy systems are more preferable. At the end of 2010 global installed wind power was 194390 MW and 250 million tones CO2 emission was prevented with this installed power. The energy production paradigm of Turkey is based on thermal conventional technology. For that reason the CO2 emission level increased 102% according to 1990s value in Turkey and energy production-based CO2 emission ratio increaded to 92% in total CO2 emission value.The theoretical wind energy potential of Turkey is 48000 MW and nearly 62 million tones of CO2 emission could be prevented with this potential.The goals of this study are that given information about global and national CO2 emission levels we can make some explanation about the national trend of the wind energy market and describe a convenient action plan for the Turkish wind energy market.
A study on heating and cooling requirements for green buildings and refugee settlements
(INDERSCIENCE ENTERPRISES LTD, 2022) Selen Cekinir; Onder Ozgener; Leyla Ozgener
In this study geothermal-based three different systems are examined comparatively and a decision-making method is used to find the best option to use in refugee settlements. Earth air heat exchanger (EAHE) vertical ground source heat pump (VGSHP) and horizontal ground source heat pump (HGSHP) are evaluated from the viewpoint of environmental impact performance economy and health. This study is the first study related to the evaluation of EAHE and GSHP systems by using the analytical hierarchy process (AHP). It is concluded that EAHE is the best option for refugee settlements, also EAHE is a healthier option for the COVID-19 pandemic.
A UHF RFID-Based System for Real-Time Production Monitoring and Tag Quality Control in the Textile Industry
(SAGE Publications Inc, 2026-01-08) Altuglu, Ogeday; Gunduzalp, Mustafa
In the textile industry, labeling errors during the production process present significant challenges for both quality control and product traceability. This study proposes a real-time RFID-based production tracking and label quality control system to address these issues. In the developed system, RFID tags attached to products are read by embedded devices equipped with RFID readers integrated into the production lines. The captured product code data is transmitted to a local server via MQTT. The server verifies the tags by querying a central database and provides instant feedback to the corresponding device. The system runs entirely over a local network and does not require an external internet connection, ensuring uninterrupted functionality even in infrastructure-limited environments. This architecture enables all devices on the production line to communicate synchronously with the server, maintaining system-wide consistency and integrity. In this way, the use of a single tag per product is ensured, and faulty tags are filtered out. Furthermore, the system evaluates tag readability to detect quality issues such as stitching errors, physical deformation and alerts the operator through feedback. As a result, defective products are identified and removed before production is completed, helping to reduce time loss, and improve overall production reliability.
An Analysis of the Sustainability Disclosures of Textile and Apparel Companies in Turkey
(E.U. Printing and Publishing House, 2019-09-30) Ebru Saygili; Arikan Tank Saygili; Seher Goren Yargi
The aim of this study is to discuss recent sustainability developments in the textile industry and to explore the disclosures of textile and apparel companies in Turkey. The economic environmental and social sustainability disclosures of 34 companies were analyzed in relation to Global Reporting Initiative (GRI) standards. The results of the analysis revealed that the most frequently mentioned sustainability issues were related to employees water product market supplier education economic energy and waste. A majority of companies provided economic disclosures about economic performance and anti-competition, environmental disclosures about water and effluents and energy, and social sustainability disclosures about training education employment health and safety diversity and equal opportunity marketing and labeling.
Citation - WoS: 5
Citation - Scopus: 5
An embedded Markov chain approach to stock rationing under batch orders
(ELSEVIER SCIENCE BV, 2019-03) Mehmet Murat Fadiloglu; Onder Bulut; Fadıloğlu, Mehmet Murat; Bulut, Önder
We provide an extension to the embedded Markov chain approach of Fadiloglu and Bulut (2010) for the analysis of lot-per-lot inventory systems with backorders under rationing. This extension generalizes the method so that it can be used for the analysis under (Q R) policy. We introduce a new embedded Markov chain of higher dimensionality that keeps track of the ordering process. We finally provide a recursive procedure to generate the steady-state probabilities from the chain and obtain the steady-state distribution. (C) 2018 Elsevier B.V. All rights reserved.
Citation - WoS: 1
Citation - Scopus: 1
An Examination of the Transformative Effect of Learning by Teaching Method in Human Rights Education
(ROUTLEDGE JOURNALS TAYLOR & FRANCIS LTD, 2024-05-24) Defne Guenay; Zahide Melis Ozun Colluoglu; Guenay, Defne; Özün Çöllüoğlu, Zahide Melis; Günay, Defne
Human rights education constitutes a significant component within the global human rights regime. In the realm of human rights education transformative approaches have gained prominence emphasizing the necessity of educational practices beyond traditional classroom settings. This study aims to examine the impact of participatory methodologies employed in human rights education on enhancing individuals' learning and awareness regarding human rights issues. Specifically we employ the pedagogical technique of learning by teaching grounded in the principle that teaching is an effective means of learning. Through our research we ascertain that the implementation of the learning by teaching approach effectively heightens the awareness and knowledge of all participants concerning human rights matters. Moreover our study reveals that individuals who engaged in instructing their peers exhibited a more comprehensive and nuanced understanding of subjects such as women's rights slavery and refugees' human rights when compared to those who solely attended lectures. The majority of these peer tutors also experienced transformative learning although transformative learning remained limited among the peer learner group. Consequently our findings not only contribute to the existing body of literature on pedagogy in the field of International Relations but also stimulate further discussions pertaining to human rights education.
Citation - WoS: 4
Citation - Scopus: 4
An experimental study of solar thermal system with storage for domestic applications
(Universiti Malaysia Pahang editor.ijame@gmail.com, 2018-12-27) Muhammad Abid; Bashria A.A. Yousef; Mamdouh El Haj Assad; A. Hepbasli; Khalid Saeed; Abid, M.; Yousef, B.A.A.; Saeed, K.; Hepbasli, A.; Assad, M.E.
Building sector consumes a greater portion of energy for heating and cooling applications. The utilization of fossil fuels for space and water heating in buildings cause a negative effect on the environment by producing larger CO2. In this study solar thermal water heating system for building application have been analyzed from the first and second law perspectives of thermodynamics considering various scenarios and water consumption pattern. The solar flat collector is very commonly used to extract energy from sunlight. Therefor energy and exergy efficiency curves for the solar flat collector were presented. The energetic and exergetic values for the system were calculated based on the experimental values for the overall system the heat exchanger and the pumps using the approach of exergetic product/fuel basis. The greatest and lowest relative irreversibility’s occurred at the solar collector and the heat exchanger with values of 85.73% and 2.45% respectively and the system overall exergy efficiency was determined to be 20.28%. The energy and exergy efficiencies of the solar collector were analyzed at three different cases depending on the mass flow rates in the solar collector and the secondary circuit of the system. Three different mass flow rates were applied to the inlet of the secondary circuit to observe the efficiency effect on the solar collector circuit. This study can assist in selecting a proper solar collector and storage size for buildings of various capacity and possible improvement in the design of the system components. © 2019 Elsevier B.V. All rights reserved.
Citation - WoS: 5
Citation - Scopus: 3
Analysis- Design- and Actual Fabrication of a Hybrid Microstrip-SIW Bandpass Filter Based on Cascaded Hardware Integration at X-Band
(KAUNAS UNIV TECHNOLOGY, 2021-02-25) Kemal Guvenli; Sibel Yenikaya; Mustafa Secmen; Guvenli, Kemal; Yenikaya, Sibel; Secmen, Mustafa
In this paper the Microstrip-Substrate Integrated Waveguide (M-SIW) bandpass filter is designed simulated and fabricated based on the theoretical analysis. The Substrate Integrated Waveguide (SIW) highpass filter and the microstrip lowpass filter are combined in a hybrid design to achieve the M-SIW bandpass filter in the X-band. This design is more comprehensible and easier to achieve a bandpass filter at a desired frequency. The SIW highpass filter and the microstrip lowpass filter are connected in series to achieve the bandpass filter. To the measured results of the fabricated M-SIW bandpass filter the center frequency is 10.20 GHz and the bandwidth is 2.40 GHz. When the analytical and measurement results are compared the frequency change in the cut-off frequency is 6.02 % and the frequency change in the bandwidth is 8.74 % It is generally seen that analytical simulation and measurement results are compatible with each other. The M-SIW bandpass filter can be broadly used in radar Worldwide Interoperability for Microwave Access (WiMAX) and satellite technologies. The filters are simulated in Computer Simulation Technology (CST) Studio Suite.
Citation - WoS: 3
Citation - Scopus: 3
Analyzing Learning Concepts in Intelligent Tutoring Systems
(ZARKA PRIVATE UNIV, 2016) Korhan Gunel; Refet Polat; Mehmet Kurt; Kurt, Mehmet; Polat, Refet; Gunel, Korhan
The information that is increasing and changing rapidly at the present day and the usage of computers in educational and instructional processes has become inevitable. With the rapid progress in technology research gives more importance to integrate intelligent issues with educational support systems such as distance learning and learning management systems. Such studies are considered as applications of the artificial intelligence on educational processes. Regarding this viewpoint some supervised learning models which is able to recognize the learning concepts from a given educational content presented to a tutoring system has been designed in this study. For this aim firstly three different corpora constructed from educational contents related to the subject titles such as calculus abstract algebra and computer science have been composed. For each candidate learning concepts the feature vectors have been generated using a relation factor in addition to tf-idf values. The relation factor is defined as the ratio of the total number of the most frequent substrings in the corpus that appear with a candidate concept in the same sentence within an educational content to most frequent substring in the corpus. The achievement of this system is measured according to the F-measure.
Citation - WoS: 1
Citation - Scopus: 1
Analyzing the Direct Effect of Multidimensional Country Image on Purchase Intention: A Preliminary Study on Foreign Student in Turkiye
(ROUTLEDGE JOURNALS TAYLOR & FRANCIS LTD, 2024-04-11) Emel Yarimoglu; Neslihan Paker; Yarimoglu, Emel; Paker, Neslihan
The study examined direct effect of country image on purchase intention of Turkish product or service in the sample of foreign students. The questionnaire was developed by measures in literature and research was conducted by convenience sampling with foreign students living in Izmir City. In findings multidimensional country image was confirmed and its seven dimensions were obtained. It was found out that country image explained 19.9% of variance in purchase intention. This study filled the gap by confirming multidimensional structure of Turkiye's country image and showed direct effects of country image on purchase intention in the foreign student sample.
Ant Colony Optimization for Solving Tsp with Sub-Route Elimination Constraints on Turkiye Map
(Turkic World Mathematical Soc, 2025) Erdemci, V.; Nuriyeva, F.
The Traveling Salesman Problem is the famous optimization problem in the NP-hard class. Many problems with applications in computer science and engineering can be modeled using the Traveling Salesman Problem. In this study, one of the artificial intelligence techniques, ant colony method, is used to solve the traveling salesman problem. In the study applied on the map of Turkiye, it is aimed to plan the best route.
ARCHITECTURAL LIGHTING DESIGN EVALUATION OF IZMIR ATATURK MUSEUM
(LLC Editorial of Journal ""Light Technik"", 2024-08) Nurefsan Sönmez; Arzu Cilasun Kunduraci; Kunduraci, Cilasun; Sonmez, Nurefsan; Kunduraci, Arzu Cilasun
Daylight is essential for enhancing visual comfort but poses risks to museum artefacts due to heat UV radiation and light fluctuations. Careful management of daylight penetration in museums may involve blocking or directing openings which could mean that the displays’ illumination must either entirely or partially rely on electrical lighting. Implementing such architectural changes in heritage buildings for museums requires more careful consideration and balancing architectural integrity with improving lighting conditions. An assessment of the lighting design of the Ataturk Museum housed in a historic building in Izmir Turkey originally a mansion built in 1875 is presented in this study. The primary objective is to analyse the architectural lighting design focusing on visual quality and artefact conservation particularly Ataturk’s personal belongings. This study attempts to report and assess electrical and daylight usage provides suggestions for demanding display areas from a visitor’s perspective through on-site evaluations and aims to record this culturally and architecturally significant building for future researchers. © 2024 Elsevier B.V. All rights reserved.

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