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Development and technological steps for realization of AB-PEM Fuel cell-a step towards clean&:sustainable energy solutions
No full textAir Breathing Proton Exchange Membrane (AB-PEM) Fuel cell is a clean energy conversion device that convert chemical energy of fuels like Hydrogen directly into electrical energy without combustion. In this study, lab scale development efforts have been demonstrated for realization of AB-PEM fuel cell taking an advantage of simulations and analysis. The objective of this research is to develop a thorough understanding of AB-PEM fuel cell design, electrochemical models, simulations, manufacturing processes and testing for sustainable energy solution. PEM fuel cell device was designed for a small Unmanned Aerial Vehicle (UAV) application. MATLAB and ANSYS fluent tools were used to predict fuel cell performance. Based on optimized simulation results, prototype device was fabricated for performance evaluation. Fuel cell testing was carried out for getting insights of operating parameters and comparison between simulated and actual device performance results. The techniques can be utilized to improve fuel cell design fabrication processes to ensure robust performance. Fulfillment of the objectives will provide a comprehensive realization of the fuel cell performance theoretically and then validation through experimentation. Results from this study will lead to improved design and manufacturing of AB-PEM fuel cell as well as improved performance
Geleneksel medyadan yeni medyaya geçiş sürecinde değişen gazetecilik 'yurttaş gazeteciliği': Kuşaklar üzerine bir araştırma
Full text linkGeçmişten günümüze teknolojik gelişmeler ile birlikte medya da bu gelişmelerden etkilenerek değişmiştir. Özellikle dijitalleşme ile birlikte iletişim teknolojilerinde yaşanan gelişmeler medyada yaşanan değişime etki etmiştir. Bu değişim ile birlikte geleneksel medya uygulamaları yerini yeni medya uygulamalarına bırakmıştır. Yeni medya teknolojilerinin bireylere sunduğu imkanlar doğrultusunda yeni bir anlayış ile birlikte yurttaş gazeteciliği yaklaşımının hızla yayıldığı görülmektedir. Teknoloji ile yetişen ya da teknolojiyi yaşamının ileriki yıllarında kullanmaya başlayan bireyler, yeni medyanın sağladığı tüm imkanlardan faydalanma fırsatı yakalamıştır. Bu çalışmada gelişen teknoloji ile birlikte değişen habercilik yaklaşımı olarak yurttaş gazeteciliğinin kuşaklar üzerindeki yansımaları ele alınmıştır. Çalışmanın amacı, iletişim teknolojilerinin gelişimi ile birlikte yeni medya teknolojilerini kullanan bireylerin kuşaklara göre ayrıştırılarak yurttaş gazeteciliği yaklaşımından ne derece etkilendiğini ve bu yaklaşımın kuşaklara yansımasını ortaya koymaktır. Bu çalışmanın araştırması internet kullanıcıları arasından seçilen 405 kişilik X, Y ve Z kuşaklarını temsil eden kişiler ile gerçekleştirilen anket çalışmasıdır. Anket çalışmasının sonuçları Mann Whitney ve Kruskal Wallis yöntemleriyle analiz edilmiştir. Çalışmada elde edilen veriler ile kuşaklar arasında yurttaş gazeteciliği ile ilişkisi ortaya konulmaya çalışılmıştır.
Anahta
Turkey's erratic foreign policy in the Middle East, 2011-2017
No full textIn a neorealist approach to the subject, this paper argues that decreases within the
harmony of structural, institutional and individual levels within the state (in our
case, Turkey), will eventually lead to a less and less successful foreign policy. The
article explores Turkey’s dyadic foreign relations primarily with Syria before and
after the Arab spring, concentrating on the period of 2011 to 2017 (for comparative
reasons, we have included Turkey-USA, Turkey-Saudi Arabia and Turkey-Iran
relations within the research as well). It shows the slow degradation and increased
lack of success within Turkey’s foreign policy during the ongoing decade
Conditional donations and imperfect gifts for public institutions administrations
No full textThis study was prepared as a master thesis at Istanbul Şehir University Institute of
Social Sciences. The topic is conditional donations and imperfect gifts to public
administrations.
In the first chapter of the study the factors of donation agreement, the characteristics
of the donations and the imperfect gift are explained and the differences between
these two terms are discussed. In the second part the legislation of public
administrations, competence of public administrations under the Public Financial
Management and Control law No. 5018 and the issues related to the form of the
donation contract is analysed in a broad strokes. In the third chapter the provisions
precepts of conditional donations and imperfect gift are mentioned. And finally in the
forth chapter, termination of the conditional donations and imperfect gifts and
withdrawal of the donations are analysed. In this study precedent judicial decisions
were also utilized.Öz……………………………………………………………………………………………………….…………….….. iv
Abstract…………………………………………………………………………………………………………………..v
İçindekiler………………………………………………………………………………………………….……………vi
Kısaltmalar……………………………………………………………………………………………………………….x
BÖLÜMLER
Giriş………….…………………………………………………………………………..…………………………………1
1. Genel Olarak Bağışlama, Koşullu Ve Yüklemeli Bağışlama……………………………………..3
1.1 Bağışlama Sözleşmesi………………………………………………………………………………….3
1.1.1. Genel Olarak Bağışlama……………………………………………………………………...3
1.1.2. Bağışlama Sözleşmesinin Tanımı, Niteliği Ve Konusu……………………………3
1.1.3. Bağışlama Sözleşmesinin Unsurları……………………………………………………..6
1.1.3.1 Kazandırıcı İşlem Olma Özelliği………………………………….………………….6
1.1.3.2 Bağışlama Amacı………………………………………………………………………..10
1.1.3.3 Karşılıksız Olması………………………………………………………………………..14
1.1.3.4 Sözleşme Niteliği………………………………………………………………………..15
1.2 Koşullu Bağışlama……………………………………………………………………………………..18
1.2.1. Koşul Kavramı……………………..…………………………………………………………….18
1.3. Koşulun Unsurları……………………………………………………………………………………..20
1.3.1. Taraf İradesi İle Belirlenmesi……………………………………….……………………..20
1.3.2. Gerçekleşmesinin Şüpheli Olması.………………………………….………………….21
1.3.3. Geleceğe İlişkin Olması…………………………………………….………………………..23
1.4. Koşula Bağlı Bağışlamanın Türleri……………………….…………………………………….24
1.4.1. Geciktirici Koşula Bağlı Bağışlama…………………………….………………………..24
1.4.2. Bozucu Koşula Bağlı Bağışlama………………………………….………………………30
1.5. Yüklemeli Bağışlama………………….……………………………………………………………..35
1.5.1. Yükleme……………………………………………………………………………………………35
1.5.1.1. Yüklemenin Tanımı ve Mahiyeti…………………………………………………35
1.5.1.2 Yüklemeli Bağışlama…………………………………………………………………..37
1.5.1.3 Yüklemenin Özellikleri………………………………………………………………..39
1.5.1.3.1. Belirli Bir Gaye………………………………………………………….……….39
1.5.1.3.2. Edimin İfa Mecburiyeti…………………………………………………….40
1.5.1.3.3. Bağışlayana Alacak Hakkı Vermemesi……………………….………41
1.5.1.4. Yüklemenin Diğer Kurumlardan Farkı……………………….………………..43
1.5.1.4.1. Vekâlet Sözleşmesinden Farkı…………………………………………..43
1.5.1.4.2. Üçüncü Kişi Yararına Sözleşmeden Farkı…………….……………..45
1.5.1.4.3. Koşula Bağlı Bağışlamadan Farkı……………………….……………….46
1.5.1.5. Kamu İdarelerine Yapılan Yüklemeli Bağışlama Yükleme
Örnekleri....................................................................................................51
1.5.1.5.1. Belirli Kullanım Amacına Özgüleme Amacıyla
Bağışlama………………………….…….……………………………………………...……..51
1.5.1.5.2. Bağışlanan Taşınmaz Üzerinde İmar Planı/Uygulaması
Yapılması Amacıyla Bağışlama…………………………………………………………51
1.5.1.5.3. Bağışlanan Taşınmazın Plan Tadilatına Uğramaması
Şeklindeki Yüklemeler…………………….……………………………………………….55
2. Kamu İdareleri Ve Koşullu Ve Yüklemeli Bağışlamada Ehliyet, Bağışlama
Sözleşmesinin Kurulması Ve Şekli……………………………………………………………………………57
2.1. Kamu İdareleri ve Koşullu ve Yüklemeli Bağışlamada Ehliyet……….…………….57
2.1.1. Genel Olarak Kamu İdareleri……………………………………………………………..57
2.1.1.1. İl Özel İdaresi……………………………………………………………………………..59
2.1.1.2. Belediye…………………………………………………………………………………….61
2.1.1.3. Büyükşehir Belediyesi………………………………………………………………..62
2.1.1.4. Köy……………………………………………………………………………………………63
2.1.2. Genel Olarak Kamu İdarelerinin Ehliyeti………………………………..…………..64
2.1.2.1. Koşullu Bağışlamada Bağışlanan Kamu İdaresinin Ehliyeti…………..68
2.1.2.1.1. İl Özel İdaresinin Ehliyeti…….……………………………………………68
2.1.2.1.2. Belediyenin Ehliyeti………………………………………………………….69
2.1.2.1.3. Büyükşehir Belediyesinin Ehliyeti…………………………………….71
2.1.2.1.4. Köy İdaresinin Ehliyeti………………………………………………………72
2.1.2.2. Yüklemeli Bağışlamada Bağışlanan Kamu İdaresinin Ehliyeti………74
2.1.2.2.1. İl Özel İdaresi……………………………………………………………………76
2.1.2.2.2. Belediye…………………………………………………………………………..76
2.1.2.2.3. Büyükşehir Belediyesi………………………………………………………77
2.1.2.2.4. Köy İdaresi….……………………………………………………………………78
2.1.3. Koşullu ve Yüklemeli Bağışlamada Bağışlayanın Ehliyeti…………………….79
2.2. Bağışlama Sözleşmesinin Kurulması ve Şekli……………………….…………………….82
2.2.1. Elden Bağışlama…….………………………………………………………………………….82
2.2.1.1. Koşula ve Yüklemeye Bağlı Elden Bağışlama………….……………………84
2.2.2. Koşullu ve Yüklemeli Bağışlama Sözü Vermenin Şekli….…………….……….86
2.2.2.1. Bağışlama Sözü Verme……………………………………………………………….86
2.2.2.1.1. Genel Olarak……………………………………………………………………86
2.2.2.1.2. Taşınırlara İlişkin Bağışlama Sözü Verme…………………………..87
2.2.2.1.3. Taşınmazlara İlişkin Bağışlama Sözü Verme………………………88
2.2.2.2. Koşula Bağlı Bağışlama Sözü Verme………………..………………………….89
2.2.2.3. Yüklemeli Bağışlama Sözü Verme……………………………………………….93
3. Koşullu ve Yüklemeli Bağışlamanın Hükümleri…………………………………………………….95
3.1. Koşullu ve Yüklemeli Bağışlamanın Hükümleri…………………………………………..95
3.1.1. Bağışlayanın Borçları………………….……………………………………………………..95
3.1.1.1. Aynen İfa Sorumluluğu………………………………………………………………95
3.1.1.2. Zapta ve Ayıba Karşı Tekeffül Sorumluluğu………………………………..98
3.1.1.3. Haksız Fiil Sorumluluğu………..………………………………………………….101
3.1.1.4. Yüklemenin Yerine Getirilmesini İsteme Hakkı Yetkisi………………102
3.1.2. Bağışlanan Açısından Sözleşmenin Hükümleri…………………………………105
3.1.2.1. Bağışlamayı Kabul Külfeti………………………………..……………………….105
3.1.2.2. Bağışlananın Alacak Hakkı………………………………………………………..106
3.1.2.3. Askı Süresindeki Hakları…………………………………………………………..107
3.1.2.4. Yüklemeyi Yerine Getirmekten Kaçınma Hakkı…………………………109
4. Sözleşmenin Sona Ermesi ve Geri Alma……………………………………………………………..112
4.1. Sözleşmenin Sona Ermesi……………………………………………………………………….112
4.1.1. Sona Erme Nedenleri………………………………………………………………………112
4.1.1.1. Ölüm……………………………………………………………………………………….112
4.1.1.2. Bozucu Koşulun Gerçekleşmesi………………………………………………..113
4.2. Bağışlamanın Geri Alınması…………………………………………………….………………118
4.2.1 Genel Olarak…………………………………………………………………………………….118
4.2.1.1. Geri Alma Hakkının Hukuki Niteliği…………………………………………..119
4.2.1.2. İade Talebinin Hukuki Dayanağı……………………………………………….121
4.2.1.2.1. Sebepsiz Zenginleşmeye Dayandığını Kabul Eden Görüş…121
4.2.1.2.2. İstihkaka Dayandığını Kabul Eden Görüş…………………………122
4.2.1.3. Geri Alma Hakkının Süresi………………….………………………………123
4.2.1.4. Geri Alma Hakkının Kullanılması Halinde İade Borcunun
Kapsamı……………………..……………………………………………………………………….124
4.2.1.5. Geri Alma Hakkının Kullanılması Sonucunda Tasfiye……………127
4.2.1.6. Kanundan Doğan Bağışlamayı Geri Alma Hakkı…………………..130
4.2.1.6.1. Yüklemenin Haklı Bir Sebep Olmaksızın Yerine
Getirilmemesi…………………….…………………………………………………………132
4.2.1.6.2. Bağışlayanın Kendisinden Kaynaklanan Nedenler………..…135
4.2.1.6.2.1. Mali Durumunun Sonradan Sözün Yerine Getirilmesini
Kendisi İçin Olağanüstü Ağır Kılacak Ölçüde Değişmesi…………..135
4.2.1.6.2.2. Bağışlama Sözü Verdikten Sonra, Kendisi İçin Yeni Aile
Yükümlülüklerinin Doğması veya Bu Yükümlülüklerinin Önemli
Ölçüde Ağırlaşması……………………………………………………………..….136
4.2.1.6.2.3. Bağışlayanın Ödeme Güçsüzlüğü Hali…………….……..138
Sonuç……………………………………..……………………………………………………….…………………..140
Kaynakça……………………………………………………………………………………………………………..14
[Sultan Mehmed Reşad ve Mahmut Şevket Paşa'nın aralarında bulunduğu fotoğraf]
No full textMahmut Şevket Paşa Arşivi.
Not: İstanbul Şehir Üniversitesi Öğretim Üyesi Doç.Dr. Kahraman Şakul aracılığıyla Mahmut Şevket Paşa ailesi tarafından bağışlanmıştır
Business analytics and firm performance:the mediating role of business process performance
No full textDue to the rapidly increasing popularity of business analytics (BA), investigation of the antecedents/determinants of the adoption of BA and the subsequent impact of the same to the firm performance has become an important research topic. Drawing on the fundamentals of the resource-based view (RBV), this study proposes a model that examines the effects of the BA adoption on business process performance (BPER) and the mediating role that BPER plays in the relationship between the adoption of BA and firm performance (FP). Based on the data collected from 204 medium- to high-level business executives in various industries, the results of this empirical study indicate that the adoption of BA positively influences BPER. There is also positive relationship between BPER and FP. Finally, the results show that BPER fully mediates the relationship between BA adoption and FP
Silicon carbide nanowire field effect transistors with high on/off current ratio
No full textWe report the important performance parameters of SiC-NWFET devices including on/off current ratio (I-on/I-off), gating effect, transconductance (g(m)), and carrier mobility (mu(h)). The channel length dependence of these key performance parameters of the SiC-NWFETs with varying channel lengths ranging from 120 nm to 1.5 mu m has been demonstrated. The device with the 120 nm channel length has led to a very high on/off current ratio (1.34 x 10(4)) and very strong gating effect. Furthermore, the transconductance and the hole mobility have been determined as 6.9 nS and 1.696 cm(2)/V.s, respectively, at V-ds of 0.05 V. This study shows good promise of the SiC-NWFET devices to be used in advanced solid-state nanoelectronic devices capable of operating at high frequency and high temperature
[Kemal Karpat'ın bilimsel bir toplantı sırasında çekilmiş olması muhtemel fotoğrafı]
No full textKemal Karpat Arşivi
Using predictive analytics to identify drug-resistant epilepsy patients
No full textEpilepsy is one of the most common brain disorders that greatly affects patients’ quality of life and poses serious risks to their health. While the majority of the patients positively respond to the existing anti-epilepsy drugs, others who developed the refractory type of epilepsy show resistance against drug therapy and need to undergo advance treatments such as surgery. Given that identifying such patients is not a straightforward process and requires long courses of trial and error with anti-epilepsy drugs, this study aims at predicting those at-risk patients using clinical and demographic data obtained from electronic medical records. Specifically, the study employs several predictive analytics machine-learning methods, equipped with a novel approach for data balancing, to identify drug-resistant patients using their comorbidities and demographic information along with the initial epilepsy-related diagnosis made by their physician. The promising results we obtained highlight the potential use of machine-learning techniques in facilitating medical decisions and suggest the possibility of extending the proposed approach for developing a clinical decision support system for medical professionals
Small business lending and credit risk: Granger causality evidence
No full textBecause of their opaque nature, SMEs are overly reliant on bank lending. Therefore, we examine whether banks' credit supply to SMEs are affected by their financial conditions. To this end, we employ a Granger causality analysis to examine whether there is an indication of a significant direction of determination between SME lending and non-performing SME loans. The results reveal no bidirectional relationship between SME lending and NPL for the entire banking sector. For Islamic banks, however, we find two-way linkages between these two parameters: a negative causation is running both from SME lending to NPL growth and from NPL to SME lending. Given Islamic banks' deposit-oriented funding practices and their adherence to profit-and-loss sharing principles, this finding suggests the presence of heightened market discipline within the Islamic banking system