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Article Citation - WoS: 44Citation - Scopus: 49A Neural Network-Based Approach for Calculating Dissolved Oxygen Profiles in Reservoirs(Springer London Ltd, 2003) Soyupak, S; Karaer, F; Gürbüz, H; Kivrak, E; Sentürk, E; Yazici, AA Neural Network (NN) modelling approach has been shown to be successful in calculating pseudo steady state time and space dependent Dissolved Oxygen (DO) concentrations in three separate reservoirs with different characteristics using limited number of input variables. The Levenberg-Marquardt algorithm was adopted during training. Pre-processing before training and post processing after simulation steps were the treatments applied to raw data and predictions respectively. Generalisation was improved and over-fitting problems were eliminated: Early stopping method was applied for improving generalisation. The correlation coefficients between neural network estimates and field measurements were as high as 0.98 for two of the reservoirs with experiments that involve double layer neural network structure with 30 neurons within each hidden layer. A simple one layer neural network structure with 11 neurons has yielded comparable and satisfactorily high correlation coefficients for complete data set, and training, validation and test sets of the third reservoir.Article Citation - WoS: 7Citation - Scopus: 7Trapping Centers and Their Distribution in Tl2ga2< Layered Single Crystals(Pergamon-elsevier Science Ltd, 2009) Isik, M.; Gasanly, N. M.Thermally stimulated current (TSC) measurements with current flowing perpendicular to the layers were carried out on Tl2Ga2Se3S layered single crystals in the temperature range of 10-260K. The experimental data were analyzed by using different methods, such as curve fitting, initial rise and isothermal decay methods. The analysis revealed that there were three trapping centers with activation energies of 12, 76 and 177 meV. It was concluded that retrapping in these centers was negligible, which was confirmed by the good agreement between the experimental results and the theoretical predictions of the model that assumes slow retrapping. The capture cross section and the concentration of the traps have been also determined. An exponential distribution of electron traps was revealed from the analysis of the TSC data obtained at different light illumination temperatures. This experimental technique provided values of 10 and 88 meV/decade for the traps distribution related to two different trapping centers. (C) 2009 Elsevier Ltd. All rights reserved.Article On the Definition of Sequential Consistency(Elsevier Science Bv, 2005) Sezgin, A; Gopalakrishnan, GThe definition of sequential consistency is compared with an intuitive notion of correctness. That the definition is not strong enough is illustrated through a hypothetical memory system which is clearly incorrect, yet sequentially consistent. It is claimed that the reason for this is the absence of a relation between what actually happens (temporal order) and what seems to happen (logical order). A stronger version of sequential consistency is proposed. (c) 2005 Elsevier B.V. All rights reserved.Master Thesis Bankacılık Riskleri ve Türk Bankalarının Türev Enstrüman Kullanımı(2005) Sonbul, Ufuk; Hacıhasanoğlu, BilgeArticle Dance of the Corporate Veils: Shareholder Liability in the United States of America and in the Republic of Turkey(2008) Davıs, B. E. Wendy; Hızır, SerdarThe foundation of corporate law is the existence of a legal entity separate from its shareholders, thus shielding shareholders from liability for corporate obligations. Courts have rarely, and with trepidation, pierced through this corporate veil to impose liability on shareholders for corporate malfeasance. These instances have become more common in recent decades, suggesting that corporate investors and parent corporations acquiring subsidiaries need to be diligent to minimize their risk. In this article two academicians discuss the consequences of wrongdoing and mismanagement underlying the pros and cons of the systems adapted by both countries.Department Industrial Design(2009)World Design Organization, of which we are an institutional member, defines industrial design in a nutshell as “a trans-disciplinary profession that harnesses creativity to resolve problems and co-create solutions with the intent of making a product, system, service, experience or a business, better.” Industrial designers place people at the heart of the process. They perceive user needs in depth through empathy and apply a pragmatic, user-centered problem solving process to design products, systems, services and experiences. They are the strategic shareholders of the innovation process and are in a unique position to bridge the gap between various professional disciplines and commercial interests. They value the economic, social and environmental effects of their work, as well as its contributions in the creation of a better quality of life. Founded in 2009, our department offers mandatory professional courses, technical courses and professional elective courses to prepare our students to become well-equipped and competitive in their business life.Conference Object Characterization of Air-Nitrogen Dc Glow Discharge Plasma With Thz Time Domain Spectroscopy(2009) Çinar,K.; Karaoǧlan,G.; Tosun,Z.; Akbar,D.; Altan,H.Transmission of terahertz pulses through DC glow discharge plasma was investigated for different gases. The pressure was kept in between the range of 0.1 torr-0.5 torr and for each pressure different measurements were taken at 5 mA, 10 mA and 15 mA plasma currents. Moreover, emission spectrum of Air, N 2 and Ar plasma analysis were done respectively. It was found that the transmission of terahertz pulses through nitrogen plasma was considerably affected compared to that of the argon plasma. ©2009 IEEE.Master Thesis Devrim Sonrası İran'ın Değişen Dış Politika Algılaması(2005) Taflıoğlu, Serkan; Hurmi, Bahar11 ÖZET DEVRİM SONRASI İRAN'IN DEĞİŞEN DIŞ POLİTİKA ALGILAMASI İslam devrimi sonrası, ana görüşler devrim ihracı ve tüm dünyadaki Müslümanların hamisi olmaktı. İdealistler jeo-stratejiye ters olan islami bir dış politika uygulamak istiyorlardı. Onlar bir İslam ülkesinin dış siyasetini adalet, iyi niyet ve islami esasların yönlendirmesi gerektiğine inanıyorlardı. Bu görüşün taraftarları, uluslar arası alanda, büyük güçlerin hakimiyetini reddedip, kendilerinde gerçekleşen devrim gibi, devrimlerin gerçekleşmesi için islami özgürlük hareketlerine ve ezilmiş halk hareketlerine maddi ve siyasi destek verilmesi gerektiğine inanıyorlardı. Diğer taraftan realistler, diğer ülkelerle özellikle büyük güçlerle barışçıl ekonomik ve diplomatik ilişkilerinin geliştirilmesini vurgulamaktaydılar. Uluslar arası seviyeden daha çok ulusal seviyede yoğunlaşmaktaydılar. Bu araştırmanın ilk bölümünde, İslam devriminin tarihsel gelişimi ve ilk dönem liberaller ve ruhaniler arasında ki çatışma incelenecektir.Mehdi Bazargan hükümeti devrim ihracı felsefesine ve büyük güçlere meydan okumaya inanmıyordu. Amerika Birleşik Devletleri de dahil batı ülkeleri ile iyi ilişkiler kurmak istiyordu. Fakat Ayetullah Humeyni taraftarlarının Amerikan Elçiliği'ni işgal etmesiyle, Bazargan hükümeti istifa etmiş ve ruhaniler İran'da hakim olmuşlardır. Yine bu bölümde, İran anayasal yapısı ve dış politika üzerinde etkili kurumlar hakkında bazı bilgiler verilmiştir. İran-Irak arasındaki toprak sorununun tarihsel geçmişi hakkında bazı bilgiler verilmiştir. İkinci bölümde, devrim sonrası ilk on yılda 'ne doğu ne batı' ve 'ümmet' siyasetinin dış politikada uygulanması süreci değerlendirilmiştir. Bu dönemde iki farklı grup olsa da, esas mücadele coğrafi sınırlar yerine ideolojik sınırın islami ideolojinin yayılması ve devrim ihracı söylemleri üzerinde gerçekleşmekteydi. Ayetullah Humeyni 'nin vefatıyla Rafsancani iktidara gelmiş, savaşın bitimiyle dış tehditler azalmıştır. Sovyetler birliği'nin çöküşüyle, İran'ın çevre koşulları değişmiştir. Bu bölümde İran'ın Avrupa Birliği, Türkiye ve arap devletleri ile olan ilişkileri de değerlendirilmiştir. Üçüncü bölümde, Hatemi'nin sivil toplum ve çoğulculuk söylemi ile iktidara gelmesiyle, dış politikada yeni etkenler girmesi incelenmiştir. 11 Eylül saldırıları sonucu İran'ın uluslar arası politikada ki konumu ve bunun dış politikasına etkisi değerlendirilmiştir. İran'ın Avrupa Birliği ile olan ekonomik siyasi ilişkileri ve İran nükleer enerji siyaseti de bu bölümde incelenmiştir. Sonuç bölümde ise, İran'ın iç politikada ki gelişmeleri ve bunun İran dış politikasına ve bölgeye muhtemel etkileri değerlendirilmiştir.Article Citation - WoS: 9Citation - Scopus: 9The Approximation of Logarithmic Function by q-bernstein Polynomials in the Case q > 1(Springer, 2007) Ostrovska, SofiyaSince in the case q > 1, q-Bernstein polynomials are not positive linear operators on C[ 0, 1], the study of their approximation properties is essentially more difficult than that for 0 < q < 1. Despite the intensive research conducted in the area lately, the problem of describing the class of functions in C[ 0, 1] uniformly approximated by their q-Bernstein polynomials ( q > 1) remains open. It is known that the approximation occurs for functions admitting an analytic continuation into a disc {z : | z| < R}, R > 1. For functions without such an assumption, no general results on approximation are available. In this paper, it is shown that the function f ( x) = ln( x + a), a > 0, is uniformly approximated by its q-Bernstein polynomials ( q > 1) on the interval [ 0, 1] if and only if a >= 1.Conference Object Citation - Scopus: 1Crm System Implementation in a Multinational Enterprise(2009) Mishra,A.; Mishra,D.The concept of customer relationship management (CRM) resonates with managers in today's competitive economy. As more and more organizations realize the significance of becoming customer-centric in today's competitive era, they embrace CRM as a core business strategy. CRM an integration of information technology and relationship marketing provides the infrastructure that facilitates long-term relationship building with customers at an enterprise-wide level. Successful CRM implementation is a complex, expensive and rarely technical projects. This paper presents the successful implementation of CRM in a multinational organization. This study will facilitate in understanding transition, constraints and implementation of CRM in multinational enterprises. © Springer-Verlag 2009.
