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Now showing 1 - 10 of 136
  • Conference Object
    Citation - WoS: 3
    Citation - Scopus: 5
    An Application of High-Power Electromagnetic Pulse: Forming of Sheet Metal Using Electromagnetic Waves
    (Institute of Electrical and Electronics Engineers Inc., 2016) Inanan,G.; Baranoglu,B.; Aydin,E.
    In this study, the application of high velocity metal forming process by means of electromagnetic field is proposed. Electromagnetic Sheet Metal Forming (ESMF) is a process of forming sheet metal with very high speed (in milliseconds) without mechanical contact using the energy density of a pulsed magnetic field. In this process, deformation of the workpiece is driven by a transient electric current that is induced in a coil using a capacitor bank and discharge switch. This study presents some experiments and their results by examining the effects of different parameters in the proposed ESMF setup. The analysis and modelling of Electromagnetic sheet metal forming (ESMF) process is presented, as well. It has been seen that, it is possible to design a new system using the outcomes of this study. © 2015 Chamber of Electrical Engineers of Turkey.
  • Conference Object
    Citation - WoS: 1
    Citation - Scopus: 2
    Personality Type Indicator Models in Serious Games: a Case Study in a Surgical Navigation Game
    (Institute of Electrical and Electronics Engineers Inc., 2015) Menekse,G.G.; Cagiltay,N.E.; Ozcelik,E.
    Serious games are a popular concept in both the research and commercial areas. It is agreed that the concept refers to the use of computer games without the main purpose of pure entertainment. In addition to being entertaining, they have some additional educational or training objectives as well. Serious games are used in different areas such as military, government, educational, corporate, and healthcare. However, according to their individual differences, it is not always possible to provide such an educational environment that fits expectations and preferences of all audience. Hence, personalization is becoming an essential issue in serious game environments, which focus on a human-centered paradigm aiming to provide adaptive and personalized services to the users according to the context. However, how such a personalization should be affectively implemented in the design of serious games is a challenge. This study aims to better understand the affect of personality types on game play. For this purpose, a game-based simulation environment which also records all details of the player during the performance of several tasks in the game play was used. Twenty nine students were asked to play the simulation game. Additionally, their personality types were collected based on the theory of psychological types by Carl Jung, the Myers-Briggs Type Indicator (MBTI) which measures personality preferences as defined by Four Dichotomous pairs of mental functions or attitudes. The correlation between these personality types and individual performance measures of players during the game play was analyzed. However no significant correlation between game parameters and the players' personality types has been recorded. This may be because of the limited number of participants that need to be examined in the future studies. © 2015 IEEE.
  • Conference Object
    An Approach for Improving Performance of Sensorless Field Control
    (Institute of Electrical and Electronics Engineers Inc., 2018) Bulent Ertan,H.; Filci,T.; Ertan, H. Bulent
    Sensorless vector control is preferred in some applications, because there is no need for speed or position sensor. However, by their very nature, they are susceptible to making position error in rotor position estimation. As a consequence the performance of motor drives employing this technology is lower than those which employ sensors. This paper presents a new approach which identifies and uses rotor slot harmonic current component in the stator current to identify rotor position. The time taken by the algorithm used is short enough to be embedded within the vector control algorithm. The essence of the algorithm is treating the current component due to rotor slot harmonics as an amplitude modulated signal on the fundamental current component. The magnitude of this current component is identified via demodulation. Using this information rotor position and speed can be determined. This approach is tested on a commercial induction motor and some results are presented which illustrate that rotor position can be successfully determined. © 2018 IEEE.
  • Conference Object
    Citation - Scopus: 1
    Sustainable Business Model Innovation: a Quantitative Analysis of Relevant Factors
    (Institute of Electrical and Electronics Engineers Inc., 2023) Salimnezhad,A.; Dastgoshade,S.
    To integrate sustainability targets into a company's business model, one potential mechanism is sustainable business model innovation (SBMI). It defines how new business models are developed to change organizations' existing business model targets for sustainable development. Despite SBMI's great potential to address industries' long-standing sustainability challenges, it is not fully adopted in practice. This study through a DEMATEL technique strives to outline the possible actions that need to be taken before implementing SBMI to enhance the success rate. The current study investigates the most significant and necessary actions through strategic, institutional, and operational segments. Results suggest that action programs at organizations' strategic- and institutional levels are more critical to have a successful SBMI implementation. Moreover, our results indicate that innovation or more clearly how innovation is practiced within an organization is key to fully unlocking the SBMI's potential. © 2023 IEEE.
  • Conference Object
    Citation - Scopus: 3
    A Discussion on Is and Software Measurement Terminology Flexibility as an Example
    (Institute of Electrical and Electronics Engineers Inc., 2010) Pusatli,O.T.; Misra,S.
    Closeness in meaning of the terms in the information systems and software engineering May result in discussion of using proper affiliated terms while covering the scope of research. An example is touched in this exploratory study, which discusses flexibility and its affiliated terms: changeability, adaptability, compatibility, flexibility, expandability, extendibility, extensibility and portability. A risk of misinterpretation due to the variety of the usage of the term is noted whereas the adoption of the term has shown that the literature does not have such examples to a serious level; but this review informs about missing discussions in the research reports in the literature due to omitting or ignoring affiliated terms of the keywords. Another product of this paper is to provide basis for future studies in the flexibility as a quality factor in the software measurement. © 2010 IEEE.
  • Conference Object
    Deep Learning and Current Trends in Machine Learning
    (Institute of Electrical and Electronics Engineers Inc., 2018) Bostan,A.; Ekin,C.; Sengul,G.; Karakaya,M.; Tirkes,G.
    Academic interest and commercial attention can be used to identify how much potential a novel technology may have. Since the prospective advantages in it may help solving some problems that are not solved yet or improving the performance of readily available ones. In this study, we have investigated the Web of Science (WOS) indexing service database for the publications on Deep Learning (DL), Machine Learning (ML), Convolutional Neural Networks (CNN), and Image Processing to reveal out the current trend. The figures indicate the strong potential in DL approach especially in image processing domain. © 2018 IEEE.
  • Conference Object
    Citation - WoS: 3
    Citation - Scopus: 3
    Comparison of a Magnetically Geared Pm Wind Generator With Radial Flux Generator
    (Institute of Electrical and Electronics Engineers Inc., 2018) Zeinali,R.; Ertan,H.B.
    Direct drive wind turbines promise to be more reliable and efficient than commonly used geared wind turbines. This paper presents part of a study aiming to identify whether 'Dual Stator Spoke Array Vernier Permanent Magnet' (DSSAVPM) generators present an advantage, regarding size or cost, as compared to the conventional radial flux PM machine for direct drive applications. For this purpose, design of both machines is optimized for the same specifications and using the same design criteria. optimization results are presented and discussed. It is found that a DSSVPM generator design, with almost the same performance as the RFPM generator, but with 45% of its mass is possible. © 2018 IEEE.
  • Conference Object
    Citation - Scopus: 1
    Numerical Evaluation of Thermal Comfort, Iaq Indices, and Tes for the Improvement of the Energy Performance in Crowded Area
    (Institute of Electrical and Electronics Engineers Inc., 2022) Al-Malaki,F.; Jafari,R.
    This paper proposed new strategies for investigating the reality of indoor air quality (IAQ). The actual crowded cell was simulated by scale of 1:4 containing five persons in which two of them are lying. It was aimed to keep the stability of the oxygen / air ratio to prevent suffocation by controlling the air velocity as quickly as possible from HVAC systems, especially in the overcrowded area. Phase change materials (PCMs) were used to reduce the fluctuations of inside space temperatures for the thermal performance. Two different organic PCMs were used to analyse the temperature distribution in the prototype model. This study also is focused on the analysis of the thermal efficiency of PCMs that is established on thermal energy storage (TES) for energy embalmment in the prototype model, for thermal management of special zone temperature applications. In addition, temperature distributions inside the cell with and without the embedded PCM in the ceiling have been illustrated. Using of PCM has reduced the cell temperature about 7°C. © 2022 IEEE.
  • Conference Object
    Citation - Scopus: 3
    Reciprocal Altruism-Based Path Planning Optimization for Multi-Agents
    (Institute of Electrical and Electronics Engineers Inc., 2022) Maeedi,A.; Khan,M.U.; Irfanoglu,B.
    This paper investigates solutions for the fundamental yet challenging problem of path planning of autonomous multi-agents. The novelty of the proposed algorithm, reciprocal altruism-based particle swarm optimization (RAPSO), lies in the introduction of information sharing among the agents. The RAPSO utilizes kinship relatedness among the agents during the optimization process to reciprocate the significant data. The concept of reciprocation is introduced to ensure that all agents remain in close contact through information exchange. The amount of exchange depends upon their physical location in the search space and their associated health indicator. Agents are classified as donors, recipients, or un-active concerning their health indicator and their positions. The ability of RAPSO to keep all agents closer to local optima through reciprocal altruism is evaluated for path planning optimization problem. Simulation results show that the RAPSO is very competitive when compared with the canonical PSO. The results of the generalized simulation scenario also prove its potential in solving path planning problems in robotics. © 2022 IEEE.
  • Conference Object
    Citation - Scopus: 2
    Developing and Evaluating a Model-Based Metric for Legal Question Answering Systems
    (Institute of Electrical and Electronics Engineers Inc., 2023) Bakir,D.; Yildiz,B.; Aktas,M.S.
    In the complicated world of legal law, Question Answering (QA) systems only work if they can give correct, situation-aware, and logically sound answers. Traditional evaluation methods, which rely on superficial similarity measures, can't catch the complex accuracy and reasoning needed in legal answers. This means that evaluation methods need to change completely. To fix the problems with current methods, this study presents a new model-based evaluation metric that is designed to work well with legal QA systems. We are looking into the basic ideas that are needed for this kind of metric, as well as the problems of putting it into practice in the real world, finding the right technological frameworks, creating good evaluation methods. We talk about a theory framework that is based on legal standards and computational linguistics. We also talk about how the metric was created and how it can be used in real life. Our results, which come from thorough tests, show that our suggested measure is better than existing ones. It is more reliable, accurate, and useful for judging legal quality assurance systems. © 2023 IEEE.