3,714 research outputs found
CWT-DPA: Component-wise waiting time for BC-enabled data plane authentication
No full textSoftware-Defined Networking (SDN) is a promising networking paradigm that brings central management and network programmability to improve existing networking systems. However, SDN has several security threats due to its untrusted control and data planes. Blockchain (BC) technology has recently provided a fault-tolerant, decentralized, and immutable ledger among untrusted parties. While the integration between SDN and BC enhances the security, it suffers from performance degradation when applied to SDN's data plane. In traditional BC-SDN approaches, such as our previous work DPSEC (Latah and Kalkan, 2020), every switch has to wait for the final commitment of each submitted transaction, which significantly decreases the performance of the BC-SDN model. In this work, we enhance the performance of BC-SDN data plane approaches by separating switch-related and host-related transactions and propose a different waiting strategy for each type of data plane transaction. We also propose a batching technique to enhance the average latency for high-load scenarios. In addition, SDN switches and controllers utilize lattice-based signatures and Key Encapsulation Methods (KEMs) to protect against quantum adversaries. We compare the performance of CWT-DPA with existing solutions such as SSL/TLSv1.3, DPSEC (Latah and Kalkan, 2020), and AuthFlow (Mattos and Duarte, 2016)
Art of story of Emir Kalkan
No full text1948'de Kayseri'de doğan Emir Kalkan, sadece Kayseri'nin değil Türk hikâyeciliğinin geleceğinde adından sıkça söz ettirecek önemli bir değeridir. Yazarın bu önemi, Kayseri özelinde Anadolu insanının yaşayışını, hayata bakış açısını ve psikolojisini, tüm bunlarla birlikte Kayseri'nin imkân ve imkânsızlıklarını hikâyelerinde etkili bir gözlem gücü ve kendine has üslubu ile işlemesinden ileri gelmektedir. Bütün ömrünü geçirdiği coğrafyayı ve o coğrafyanın insanlarını, değerlerini hikâyelerinde derinlemesine yansıtır. Hikâyeciliğimizde yeteri kadar yer bulamayan öz toprağının değerlerini, farklı bir soluk ve bakış açısının yanı sıra özgün bir üslûp ve sade bir Türkçe ile hikâyelerine taşır. Bu çalışmanın amacı, bir Kayseri aşığı Emir Kalkan'ı hikâyeciliği özelinde, edebî anlayışını ve Türk edebiyatına kazandırdığı eserlerini tanımak, tanıtmaktır. Anahtar Kelimeler: Emir Kalkan, Kayseri, Eserleri, Edebi Anlayış, Türk Kültürü, Şehir Hikâyeleri, Türk Tarihi ve Edebiyatı.
Born in Kayseri in 1948, Emir Kalkan who makes his mark on not only in the future of Kayseri but also in Turkish story is an important valve. The importance of author proceeds form his unique style and his effective monitoring ability in his works where he talked about the lives of the people in Anatolia, their perspective towards life and their psychology by focusing on Kayseri and besides all these things, he talked about the possibility and impossibility of Kayseri in his works. He reflects the geography where he lived for a life-spoon and people of that geography and the valves of them deeply. In his stories, he uses the valve of the territory that hasn't gained enough importance in our stories with a different perspective as well as his unique style and a pure Turkish language. The purpose of this study knows and introduces Emir Kalkan who is a lover of Kayseri by focusing on Kayseri, his literature approach and the works which he makes Turkish literature gain. Keywords: Emir Kalkan, Kayseri, Works, Literary Understanding, Turkish Culture, City Stories, Turkish Literature and History
Tourism Development and Planning: The Case of Kalkan, Antalya, Turkey
No full textThis paper uses findings from research undertaken in 2005 by the author and two colleagues to discuss the shift from a comprehensive-holistic and integrated tourism planning to a market-oriented and ad hoc mode. It also discusses the implications of weak local policies in the absence of comprehensive and integrative regional planning frameworks. The original research was on the development and conservation problems experienced in the small tourism town of Kalkan in Turkey after changes to the legal system abolishing certain restrictions on foreign purchases of real estate. The researchers conducted a rapid assessment of the problems and issues and made recommendations for the local development and conservation of historical and natural sites. The report containing recommendations was prepared following a formal request from one of the non-governmental organizations in Kalkan. Thus, the selection of Kalkan was not a matter of considered academic choice. That said, the situation in Kalkan to a certain extent offers a good example of local sensitivity and concern regarding macro-economic policies decided at a national scale. At the time of writing, the report was the first written text reporting on local impacts of market liberalization and deregulation in the real estate sector
Continuous dimensionality characterization of image structures
No full textIntrinsic dimensionality is a concept introduced by statistics and later used in image processing to measure the dimensionality of a data set. In this paper, we introduce a continuous representation of the intrinsic dimension of an image patch in terms of its local spectrum or, equivalently, its gradient field. By making use of a cone structure and barycentric co-ordinates, we can associate three confidences to the three different ideal cases of intrinsic dimensions corresponding to homogeneous image patches, edge-like structures and junctions. The main novelty of our approach is the representation of confidences as prior probabilities which can be used within a probabilistic framework. To show the potential of our continuous representation, we highlight applications in various contexts such as image structure classification, feature detection and localisation, visual scene statistics and optic flow evaluation.Original Publication:Michael Felsberg, Sinan Kalkan and Norbert Krüger, Continuous dimensionality characterization of image structures, 2009, Image and Vision Computing, (27), 6, 628-636.http://dx.doi.org/10.1016/j.imavis.2008.06.018Copyright: Elsevier Science B.V., Amsterdam.http://www.elsevier.com
El Kalkan de las Infancias
No full textMaestría en Educación desde la Diversidad, Facultad de Ciencias Sociales y Humanas.Esta tesis de maestría en Educación desde la diversidad pretende comprender la naturaleza de los mundos posibles, eso que la expresión Kalkan abarca; en el contexto pedagógico infantil implica ante todo transitar por la imaginación, de tal manera que la escuela en su diversidad y complejidad, pueda ofrecer campos de reflexión sobre la construcción de espacios alternativos, procesos de conocimiento propio, vivencia y afloramiento de la experiencia infantil y edificación real de ambientes propicios; en este sentido, el presente ejercicio debe acoger a los diferentes sujetos que por la escuela transitan; entre ellos(as), aquellos que por distintas circunstancias sufren de vulneraciones y por tanto la escuela deba comprender su situación y posibilidades de desarrollo humano. En este contexto, la investigación titulada “El Kalkan de las infancias”, explora los anhelos de vida desde la experiencia de niños y niñas, de la institución Promundo Activo, ubicada en Soacha, Cundinamarca
Osman Kalkan of Tercan.
No full textThree page transcript of Turkish oral narrative story No. 821 titled "Osman Kalkan of Tercan." The folktale was narrated on August 12, 1974 and is part of the Archive of Turkish Oral Narrative.Oral narrative of a Turkish folktale collected by Professor Ahmet Edip Uysal, Dr. Waren Walker and Barbara Walker (Mrs. Warren Walker). Each narrative was translated into English by native Turkish speakers (mostly students), paid for by the Walkers, who then edited the translations
Ferritchromite and Cr-chlorite formation in Kalkan serpentinitic melange (Southern Urals, Russia)
No full textSpinel is often used as a magmatic indicator of crystallization processes, without considering the effects of metamorphic alteration on spinel geochemical features. Serpentinized mélanges in the southern Urals host different kinds of disseminated to massive chromitite mineralization. In mélange environments, intense metamorphic alteration above 300 °C leads to major changes in chromite chemistry and to the growth of secondary phases such as ferritchromite and chromian-chlorite. Based on textural and chemical analyses, mélange-hosted Kalkan chromitites exhibit a hydration and oxidation
reaction that can explain the formation of ferritchromite and chromian-chlorite from chromite and serpentine:
2(Mg0.60Fe0.40)(Cr1.30Al0.70)O4 + 3/2(Mg2.57 Al0.32Fe0.11)Si2O5(OH)4 + H2O + 1/12O2 →
Chr
Atg
7/6(Mg0.40Fe0.60)(Cr1.85Fe0.08Al0.07)O4 + 1/2(Mg9.18Fe0.34Al1.60Cr0.88)(Al2Si6)O20(OH)16.
Fe-Chr Cr-Chl
Textural analyses fit well with the proposed reaction and show that it usually proceeds very close to completion. The degree of alteration of chromite into ferritchromite is controlled by the initial chromite to serpentine ratio. In chromitites, high ratios prevent complete transformation of chromite into ferritchromite. The most likely environment for such reaction is a prograde metamorphic event post-dating serpentinization of the Kalkan ophiolite, possibly related to emplacement within an accretionary
wedge
Chromitite alteration in serpentinite mélanges of Nurali and Kalkan massif (Russia)
No full textStudies on the genesis and evolution of Cr-mineralization in ophiolites usually do not consider the metamorphic processes that influenced the mineralization in later stages. Kalkan and Nurali chromitites from Urals mélanges exhibit different alteration. During post-serpentinization reactions Al diffuses out of magmatic spinel leaving behind a ferritchromite and promoting the formation of chlorite aureoles (Mellini, 2005). Kimball (1990) describes the alteration of spinel to ferritchromite and the formation of chlorite by the reaction:
MgAl2O4 +4MgO+3SiO2 4H2O = (Mg5Al)(AlSi3O10)(OH)8
with MgO, SiO2 and H2O coming from the fluid. At Kalkan post-serpentinization processes led to the formation of chlorite and ferritchromite by reaction of fluid with spinel and serpentine, with MgO and SiO2 coming from serpentine. Only rare serpentine relicts testify the serpentinization stage. At Nurali no evidences of chlorite and ferritchromite formation have been observed and post-serpentinization processes led to partial reabsorption of chromite. Serpentinization did not affect chromite and led to the formation of magnetite as coronae around chromite crystals or as small scattered magnetite grains in the matrix. According to the mineral chemistry of the involved phases we propose the following reaction for ferritchromite formation:
2(Mg0.60Fe0.40)(Cr1.30Al0.70)O4 +
3/2(Mg2.57Al0.32Fe0.11)Si2O5(OH)4 + H2O + 1/12O2→
7/6(Fe0.60Mg0.40)(Cr1.85Fe0.08Al0.07)O4 +
1/2(Mg9.18Fe0.34Al1.60Cr0.88) (Al2Si6)O20(OH)16.
Magnetite formation during serpentinization without involving chromite can be described by the reaction:
4(Mg1.8Fe0.2)SiO4 + 2(Mg0.9Fe0.1)SiO3 + 6H2O + 1/6O2→ 3Mg3Si2O5(OH)4 + 1/3Fe3O
Kadın Anatomik Mesane Çıkış Obstrüksiyonu: Klasifikasyon, Tedavi Yöntemleri ve Üretral Rekonstrüksiyon .
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