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Yayın A global optimal control methodology and its application to a mobile robot model(Elsevier B.V., 2016) Dinçmen, ErkinA global optimal control algorithm is developed and applied to an omni-directional mobile robot model. The aim is to search and find the most intense signal source among other signal sources in the operation region of the robot. In other words, the control problem is to find the global extremum point when there are local extremas. The locations of the signal sources are unknown and it is assumed that the signal magnitudes are maximum at the sources and their magnitudes are decreasing away from the sources. The distribution characteristics of the signals are unknown, i.e. the gradients of the signal distribution functions are unknown. The control algorithm also doesn't need any position measurement of the robot itself. Only the signal magnitude should be measured via a sensor mounted on the robot. The simulation study shows the performance of the controller.Yayın Thermal quenching of thermoluminescence in quartz samples of various origins(Univ Agean, Dept Mediterranean Stud, 2010) Subedi, Bhagawan; Afouxenidis, Dimitrios; Polymeris, George S.; Bakoglidis, Konstantinos D.; Raptis, Spyridoula; Tsirliganis, Nestor C.; Kitis, GeorgeThe effect of thermal quenching plays an important role in the thermoluminescence (TL) of quartz on which many applications of TL are based. In present work it is investigated that the thermal quenching parameters i.e. the activation energy W and the dimensionless parameter C, are more or less the same for every kind of quartzes or sample dependent on strong external treatment like a high temperature annealing. This preliminary investigation of seven quartz samples of different origin showed that the thermal quenching parameters W and C are common (universal) for most of the quartz samples.Yayın Introducing professional skills during unit operations laboratory(American Society for Engineering Education, 2011-06-26) Rende, Sevinç; Rende, Deniz; Baysal, NihatUnit operations laboratory (UOL) course is considered to be a crucial and integral part of the chemical engineering education. The primary objective of the course is to enable students to combine theory and practice. Problems in industry however entail more than finding technical solutions. Indeed professional life requires other skills such as an ability to propose ideas, develop practical solutions, participate in teamwork, meet deadlines, establish communication between technical support and suppliers, oversee financial issues, and finally reporting and presentation skills. This study describes how in three consecutive courses, we preserve academic rigor of the UOL course while incorporating components such as experimental design, project development and teamwork, which aim to meet the needs of professional careers. We follow up the course outcomes with a survey targeting the graduates of the program. The results show that graduates employed in industry frequently rely on these skills during job interviews, research and product development, whereas those who pursue advanced degrees in academia use these skills predominantly for their research, highlighting the need for adaptive approach for different graduate trajectories in designing the course. For both groups of graduates, the skills introduced during the UOL courses are reported to be valuable in their daily life, emphasizing life-long learning.Yayın Preliminary TL and OSL investigations of obsidian samples(Univ Agean, Dept Mediterranean Stud, 2010) Polymeris, George S.; Gogou, D.; Afouxenidis, Dimitrios; Rapti, Sofia; Tsirliganis, Nestor C.; Kitis, GeorgeObsidian is a volcaniclastic mineral extremely hard to break, which was used in prehistoric Greece (and elsewhere in the World), in order to provide tools, weapons, knives and arrowheads. The present work aims to characterize this extremely precious tool stone by using both thermoluminescence (TL) and optically stimulated luminescence (OSL) techniques and investigate its potential use for luminescence dating purposes. Basic TL and OSL properties, such as TL and OSL thermal and optical stability, repeatability, TL and LM-OSL glow curve shape and mainly the linearity of the TL and OSL signals as a function of beta dose were investigated. Artificially irradiated samples indicate all promising luminescence features, such as the 110 degrees C TL peak and dose response sub-linearity for intermediate doses, quick and effective bleaching all over the entire TL glow curve, along with quite linear CW-OSL dose response for doses larger than 5 Gy. The lack of predose sensitisation indicates the suitability of the material for single aliquot measurements. Furthermore, several features provide indications that the signal does not relate to quartz, but in fact to other silicates. Unfortunately, both lack of bleaching ability for NIL signal, along with a peculiar shape of NOSL, provide major difficulties in dating applications.Yayın Visual modeling of Turkish morphology(European Language Resources Association (ELRA), 2020-05-16) Özenç, Berke; Solak, ErcanIn this paper, we describe the steps in a visual modeling of Turkish morphology using diagramming tools. We aimed to make modeling easier and more maintainable while automating much of the code generation. We released the resulting analyzer, MorTur, and the diagram conversion tool, DiaMor as free, open-source utilities. MorTur analyzer is also publicly available on its web page as a web service. MorTur and DiaMor are part of our ongoing efforts in building a set of natural language processing tools for Turkic languages under a consistent framework.Yayın TRopBank: Turkish PropBank V2.0(European Language Resources Association (ELRA), 2020-05-16) Kara, Neslihan; Aslan, Deniz Baran; Marşan, Büşra; Bakay, Özge; Ak, Koray; Yıldız, Olcay TanerIn this paper, we present and explain TRopBank “Turkish PropBank v2.0”. PropBank is a hand-annotated corpus of propositions which is used to obtain the predicate-argument information of a language. Predicate-argument information of a language can help understand semantic roles of arguments. “Turkish PropBank v2.0”, unlike PropBank v1.0, has a much more extensive list of Turkish verbs, with 17.673 verbs in total.Yayın STEAM approach in architectural education(EDP Sciences, 2019-06-22) Süyük Makaklı, ElifArchitecture practice is reshaped by new technological developments such as virtual reality, augmented reality, 3D printing, computational design, robotics, etc. Future architects are expected to deliver spatial solutions, to understand changing living conditions and to discover the different future by responsing technological improvements. In architecture schools, students should explore and investigate design practice with different production methods, systems and materials by using various technologies in collaborations with interdisciplinary partners and industry. The study aims to understand the STEAM concept which is considered as a promising education approach and formulated; science, technology, engineering, math and then adds an 'A' for arts which represents the creative thinking and design approach. The STEAM concept and its place in the architectural education are discussed. The discipline of architecture is an intersection of technology, art and science. The architecture schools' curriculum reflects the interdisciplinary STEAM nature throughout the history. Virtual Reality (VR) is created through interdisciplinary technology and has the potential to prepare the students to future, to develop analytical and abstraction abilities.Yayın TL and OSL response of turquoise for dosimetric application(University of Aegean, 2010) Subedi, Bhagawan; Afouxenidis, Dimitrios; Polymeris, George S.; Tsirliganis, Nestor C.; Paraskevopoulos, Konstantinos M.; Kitis, GeorgeTurquoise is one of the amongst first gem stones used in jewelry and possessing cultural value since 2000 BC (at least). This work attempts characterize this stone scientifically using both thermally (TL) and optically stimulated luminescence (OSL) techniques. The experimental investigation included 1) the study of the natural TL and OSL signals, 2) the reproducibility of TL sensitivity over repeated irradiation and TL readout cycles, 3) dependence of sensitivity on annealing temperatures and 4) the TL and OSL dose response curves. The potential use of the TL and OSL techniques in determination of provenance, accidental dosimetry and probably to authenticity and dating purposes are then discussed.Yayın Women's empowerment and welfare traformation in the context of microcredit in Turkey(Pressacademia, 2015-06-04) Soykut Sarıca, Yeşim Pınar; Çağlı Kaynak, ElifGender inequalities are of the main problems in almost every society. Like all other parts of the system, economic and business environment haven't attempted sufficiently in struggling with this issue. When these inequalities combined with development problems the growth of poverty among women and their exclusion from society multiplies. Although there is so much struggle for constructing equal society women are still considered as ignorant part of the society and hence, vulnerable beings, who have to be protected and taken care of. In this sense women have not much chance for being "independent individual" both in social and economic terms. However these constraints upon women's vulnerability and inability are tried to be changed by Microfinance system to move from the perspective of women's empowerment. In this paper, we try to analyze whether the performance of practices by the non-governmental organizations ability to achieve objective to improve the living conditions and interest of the women in the society or not by comparing to micro credit organizations in Turkey. We also try to answer whether women's participation in employment contributes to well-being their lives and contributes their role in working life.Yayın Benefiting innovative capabilities of software developer/user communities in developing countries(IEEE, 2010) Ansal, Hacer; Yıldırım, NihanSince technological innovation is generally considered to be a major force in global economic growth, the development of innovative capabilities in developing countries has been a very important policy issue. Free/Libre Open Source Software (FLOSS) has reshaped software technology through the creation of developer/user communities which enabled the collaboration of different parties resulting in the production of Linux and similar software projects. FLOSS user/developer community networks serve not only as "learning, reviewing, and testing" environments for developers, but they may also act as innovation networks that contribute to the improvement of the innovative capabilities of individual developers within the community. Therefore, understanding the characteristics, the motivating factors and the innovative dynamics of these developer communities will provide valuable insight into how to improve the innovative capabilities of developing countries in relation to software.The aim of this paper is to explore the characteristics of FLOSS developer communities in order to discover what benefits they may offer developing countries in generating innovative capabilities related to software. By conducting a survey in the FLOSS user/developer community in Turkey, the demographic characteristics, motivation factors and innovative characteristics of the community are explored and the question of whether these communities may act as innovation networks is examined. It is concluded that FLOSS community networks mostly serve as knowledge sharing and collaboration platforms, however, they do have the potential to evolve into innovation networks if they receive support from the local software industry and academic institutions.
