To see the other types of publications on this topic, follow the link: QAV-1.

Dissertations / Theses on the topic 'QAV-1'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 41 dissertations / theses for your research on the topic 'QAV-1.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Ramos, Luth Silva [UNESP]. "Estudo para o desenvolvimento de um injetor jato-Y para misturas de combustíveis de aviação e biocombustíveis." Universidade Estadual Paulista (UNESP), 2017. http://hdl.handle.net/11449/150049.

Full text
Abstract:
Submitted by LUTH SILVA RAMOS null (lutherair@yahoo.com.br) on 2017-03-29T19:49:44Z No. of bitstreams: 1 Dissertação Luth Ramos 2017 Final.pdf: 2110056 bytes, checksum: 5f14af4841d2cf0a501f307108e2e0b2 (MD5)<br>Approved for entry into archive by Luiz Galeffi (luizgaleffi@gmail.com) on 2017-03-30T18:14:10Z (GMT) No. of bitstreams: 1 ramos_ls_me_guara.pdf: 2110056 bytes, checksum: 5f14af4841d2cf0a501f307108e2e0b2 (MD5)<br>Made available in DSpace on 2017-03-30T18:14:10Z (GMT). No. of bitstreams: 1 ramos_ls_me_guara.pdf: 2110056 bytes, checksum: 5f14af4841d2cf0a501f307108e2e0b2 (MD5) Previ
APA, Harvard, Vancouver, ISO, and other styles
2

Ranucci, Carolline Rodrigues. "Transesterificação seguida de destilação para a obtenção de bioquerosene de pinhão manso (Jatropha curcas L.), babaçu (Orbignya phalerata) e palmiste (Elaeis guineenses)." Universidade Estadual do Oeste do Parana, 2015. http://tede.unioeste.br:8080/tede/handle/tede/1803.

Full text
Abstract:
Made available in DSpace on 2017-07-10T17:59:31Z (GMT). No. of bitstreams: 1 Carolline Rodrigues Ranucci.pdf: 1478673 bytes, checksum: dbf05cf901d293b1091d138f2695fb5f (MD5) Previous issue date: 2015-09-25<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>The increase in global energy demand has contributed to the search for alternative energy sources aimed at reducing the dependency on fossil fuels. The airline industry increasingly invests in the development of a less dependent on fossil fuel sources, that is from renewable sources and to maintain the original composition o
APA, Harvard, Vancouver, ISO, and other styles
3

Varthaman, Aditi. "Etude des lymphocytes T CD8+ restreints au Qa-1 : induction et rôle en physiopathologie." Paris 6, 2009. http://www.theses.fr/2009PA066234.

Full text
Abstract:
Les mécanismes régulateurs des cellules T utilisent une multitude de molécules. Les cellules T CD8+, en reconnaissant des peptides présentés par la molécule du CMH de classe Ib, le Qa-1, exercent un contrôle suppressif sur les cellules T cibles. Ces cellules T CD8+ restreintes au Qa-1 ont été initialement décrites dans le contexte de la vaccination cellulaire T, qui consiste à administrer des cellules T CD4+ autoréactives activées exprimant des complexes Qa-1/peptides. Les cellules T CD8+ induites contrôlent l’expansion de cellules T CD4+ autoréactives endogènes et préviennent le développement
APA, Harvard, Vancouver, ISO, and other styles
4

Davies, Adrian. "Functional analysis of QA-1, A ligand involved in both innate and adaptive immune responses." Available to US Hopkins community, 2002. http://wwwlib.umi.com/dissertations/dlnow/3068138.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Bozdemir, Mehmet Burak. "Portfolio Selection And Return Performance: An Application Of The Black-litterman Method In The Istanbul Stock Exchange." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613877/index.pdf.

Full text
Abstract:
ABSTRACT PORTFOLIO SELECTION AND RETURN PERFORMANCE: An Application of the Black-Litterman Method in the Istanbul Stock Exchange Bozdemir, Mehmet Burak M.Sc, Department of Financial Mathematics Supervisor : Assist. Prof. Dr. Seza Dani
APA, Harvard, Vancouver, ISO, and other styles
6

Cenk, Murat. "Results On Complexity Of Multiplication Over Finite Fields." Phd thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/3/12610363/index.pdf.

Full text
Abstract:
Let n and l be positive integers and f (x) be an irreducible polynomial over Fq such that ldeg( f (x)) &lt<br>2n - 1, where q is 2 or 3. We obtain an effective upper bound for the multiplication complexity of n-term polynomials modulo f (x)^l. This upper bound allows a better selection of the moduli when Chinese Remainder Theorem is used for polynomial multiplication over Fq. We give improved formulae to multiply polynomials of small degree over Fq. In particular we improve the best known multiplication complexities over Fq in the literature in some cases. Moreover, we present a method for mul
APA, Harvard, Vancouver, ISO, and other styles
7

Saygi, Elif. "Results On Lcz Sequences And Quadratic Forms." Phd thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/12611243/index.pdf.

Full text
Abstract:
In this thesis we study low correlation zone (LCZ) sequence sets and a class of quadratic forms. In the first part we obtain two new classes of optimal LCZ sequence sets. In our first construction using a suitable orthogonal transformation we extend some results of [21]. We give new classes of LCZ sequence sets defined over Z4 in our second construction. We show that our LCZ sequence sets are optimal with respect to the Tang, Fan and Matsufiji bound [37]. In the second part we consider some special linearized polynomials and corresponding quadratic forms. We compute the number of solutions of
APA, Harvard, Vancouver, ISO, and other styles
8

Calik, Cagdas. "Computing Cryptographic Properties Of Boolean Functions From The Algebraic Normal Form Representation." Phd thesis, METU, 2013. http://etd.lib.metu.edu.tr/upload/12615759/index.pdf.

Full text
Abstract:
Boolean functions play an important role in the design and analysis of symmetric-key cryptosystems, as well as having applications in other fields such as coding theory. Boolean functions acting on large number of inputs introduces the problem of computing the cryptographic properties. Traditional methods of computing these properties involve transformations which require computation and memory resources exponential in the number of input variables. When the number of inputs is large, Boolean functions are usually defined by the algebraic normal form (ANF) representation. In this thesis, metho
APA, Harvard, Vancouver, ISO, and other styles
9

Cetinkaya, Orhan. "Verifiability And Receipt-freeness In Cryptographic Voting Systems." Phd thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12609081/index.pdf.

Full text
Abstract:
This thesis examines verifiability and receipt freeness in cryptographic voting protocols in detail and points out the contradiction between these requirements. Firstly, an extensive electronic voting requirement set is clearly defined, and then the voting dilemma is described. This is followed by a suggestion of an applicable solution to overcome the voting dilemma by introducing Predefined Fake Vote (PreFote) scheme. Based on a comprehensive literature review, a classification of the existing privacy preserving approaches and a taxonomy of the existing cryptographic voting protocols extendin
APA, Harvard, Vancouver, ISO, and other styles
10

Celik, Dilek. "Basic Cryptanalysis Methods On Block Ciphers." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12611877/index.pdf.

Full text
Abstract:
Differential cryptanalysis and linear cryptanalysis are the first significant methods used to attack on block ciphers. These concepts compose the keystones for most of the attacks in recent years. Also, while designing a cipher, these attacks should be taken into consideration and the cipher should be created as secure against them. Although differential cryptanalysis and linear cryptanalysis are still important, they started to be inecient due to the improvements in the technology. So, these attacks are extended. For instance, higher order differential cryptanalysis, truncated differential cr
APA, Harvard, Vancouver, ISO, and other styles
11

Sonmez, Turan Meltem. "On Statistical Analysis Of Synchronous Stream Ciphers." Phd thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/12609581/index.pdf.

Full text
Abstract:
Synchronous stream ciphers constitute an important class of symmetric ciphers. After the call of the eSTREAM project in 2004, 34 stream ciphers with different design approaches were proposed. In this thesis, we aim to provide a general framework to analyze stream ciphers statistically. Firstly, we consider stream ciphers as pseudo random number generators and study the quality of their output. We propose three randomness tests based on one dimensional random walks. Moreover, we theoretically and experimentally analyze the relations of various randomness tests. We focus on the ideas of alge
APA, Harvard, Vancouver, ISO, and other styles
12

Tor, Ali Hakan. "Derivative Free Algorithms For Large Scale Non-smooth Optimization And Their Applications." Phd thesis, METU, 2013. http://etd.lib.metu.edu.tr/upload/12615700/index.pdf.

Full text
APA, Harvard, Vancouver, ISO, and other styles
13

Mert, Raziye. "Qualitative Behavior Of Solutions Of Dynamic Equations On Time Scales." Phd thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/3/12611528/index.pdf.

Full text
Abstract:
In this thesis, the asymptotic behavior and oscillation of solutions of dynamic equations on time scales are studied. In the first part of the thesis, asymptotic equivalence and asymptotic equilibrium of dynamic systems are investigated. Sufficient conditions are established for the asymptotic equivalence of linear systems and linear and quasilinear systems, respectively, and for the asymptotic equilibrium of quasilinear systems by unifying and extending some known results for differential systems and difference systems to dynamic systems on arbitrary time scales. In particular, for the asympt
APA, Harvard, Vancouver, ISO, and other styles
14

Bilgin, Begul. "Generating Functions And Their Applications." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12612437/index.pdf.

Full text
Abstract:
Generating functions are important tools that are used in many areas of mathematics and especially statistics. Besides analyzing the general structure of sequences and their asymptotic behavior<br>these functions, which can be roughly thought as the transformation of sequences into functions, are also used effciently to solve combinatorial problems. In this thesis, the effects of the transformations of generating functions on their corresponding sequences and the effects of the change in sequences on the generating functions are examined. With these knowledge, the generating functions for the
APA, Harvard, Vancouver, ISO, and other styles
15

J, Mohammad Mohammad Alkin Cihad. "Text Mining: A Burgeoning Quality Improvement Tool." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/2/12609006/index.pdf.

Full text
Abstract:
While the amount of textual data available to us is constantly increasing, managing the texts by human effort is clearly inadequate for the volume and complexity of the information involved. Consequently, requirement for automated extraction of useful knowledge from huge amounts of textual data to assist human analysis is apparent. Text mining (TM) is mostly an automated technique that aims to discover knowledge from textual data. In this thesis, the notion of text mining, its techniques, applications are presented. In particular, the study provides the definition and overview of concepts in t
APA, Harvard, Vancouver, ISO, and other styles
16

Sakarya, Hatice. "A Contribution To Modern Data Reduction Techniques And Their Applications By Applied Mathematics And Statistical Learning." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12612819/index.pdf.

Full text
Abstract:
High-dimensional data take place from digital image processing, gene expression micro arrays, neuronal population activities to financial time series. Dimensionality Reduction - extracting low dimensional structure from high dimension - is a key problem in many areas like information processing, machine learning, data mining, information retrieval and pattern recognition, where we find some data reduction techniques. In this thesis we will give a survey about modern data reduction techniques, representing the state-of-the-art of theory, methods and application, by introducing the language of m
APA, Harvard, Vancouver, ISO, and other styles
17

Saran, Nurdan A. "Time Memory Trade Off Attack On Symmetric Ciphers." Phd thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/12610437/index.pdf.

Full text
Abstract:
Time Memory Trade O (TMTO) is a cryptanalytic method that aims to develop an attack which has a lower memory complexity than lookup table and a lower online time complexity than exhaustive search. TMTO methods are widely studied in the literature and used for inverting various cryptosystems. We focus on the design and the analysis of TMTO on symmetric ciphers in this thesis. Firstly, the summary of the random mapping statistics from the view point of TMTO is presented. We also recalculate some expected values with a simpler approach than the existing proofs. Then, we propose some variant const
APA, Harvard, Vancouver, ISO, and other styles
18

Altintan, Derya. "Extension Of The Logistic Equation With Piecewise Constant Arguments And Population Dynamics." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/3/12607403/index.pdf.

Full text
Abstract:
Population dynamics is the dominant branch of mathematical biology. The first model for population dynamics was developed by Thomas Malthus. A more complicated model was developed by Pierre Fran&ccedil<br>ois Verhulst and it is called the logistic equation. Our aim in this thesis is to extend the models using piecewise constant arguments and to find the conditions when the models have fixed points, periodic solutions and chaos with investigation of stability of periodic solutions.
APA, Harvard, Vancouver, ISO, and other styles
19

Turkmen, Muserref. "Digital Image Processing Of Remotely Sensed Oceanographic Data." Master's thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/12609948/index.pdf.

Full text
Abstract:
Developing remote sensing instrumentation allows obtaining information about an area rapidly and with low costs. This fact offers a challenge to remote sensing algorithms aimed at extracting information about an area from the available re&not<br>mote sensing data. A very typical and important problem being interpretation of satellite images. A very efficient approach to remote sensing is employing discrim&not<br>inant functions to distinguish different landscape classes from satellite images. Various methods on this direction are already studied. However, the efficiency of the studied methods
APA, Harvard, Vancouver, ISO, and other styles
20

Yilmaz, Sevgul. "The Effects Of Real Data Based And Calculator Supported Statistics Activities On 7th Grade Students&amp." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12607991/index.pdf.

Full text
Abstract:
The purpose of the study was to investigate the effects of real data based and calculator supported statistics activities on 7th grade students&amp<br>#8217<br>statistics performance and attitudes towards statistics when the statistics performance of the students prior to the instruction and the previous mathematics grades were controlled. A quasi-experimental design was used to investigate the research problem. The research was conducted by 84 seventh grade students. There were three groups in the study. Two of them were experimental groups and one of them was control group. The first group r
APA, Harvard, Vancouver, ISO, and other styles
21

Yildiz, Senay. "Construction Of Substitution Boxes Depending On Linear Block Codes." Master's thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/12605540/index.pdf.

Full text
Abstract:
The construction of a substitution box (S-box) with high nonlinearity and high resiliency is an important research area in cryptography. In this thesis, t-resilient nxm S-box construction methods depending on linear block codes presented in &quot<br>A Construction of Resilient Functions with High Nonlinearity&quot<br>by T. Johansson and E. Pasalic in 2000, and two years later in &quot<br>Linear Codes in Generalized Construction of Resilient Functions with Very High Nonlinearity&quot<br>by E. Pasalic and S. Maitra are compared and the former one is observed to be more promising in terms of nonl
APA, Harvard, Vancouver, ISO, and other styles
22

Sulak, Fatih. "Statistical Analysis Of Block Ciphers And Hash Functions." Phd thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613045/index.pdf.

Full text
Abstract:
One of the most basic properties expected from block ciphers and hash functions is passing statistical randomness testing, as they are supposed to behave like random mappings. Previously, testing of AES candidate block ciphers was done by using the statistical tests defined in the NIST Test Suite. As some of the tests in this suite require long sequences, data sets are formed by concatenating the outputs of the algorithms obtained from various input types. However, the nature of block cipher and hash function algorithms necessitates devising tests and test parameters focused particularly on sh
APA, Harvard, Vancouver, ISO, and other styles
23

Evkaya, Ozan Omer. "Modelling Weather Index Based Drought Insurance For Provinces In The Central Anatolia Region." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614572/index.pdf.

Full text
Abstract:
Drought, which is an important result of the climate change, is one of the most serious natural hazards globally. It has been agreed all over the world that it has adverse impacts on the production of agriculture, which plays a major role in the economy of a country. Studies showed that the results of the drought directly affected the crop yields, and it seems that this negative impact will continue drastically soon. Moreover, many researches revealed that, Turkey will be affected from the results of climate change in many aspects, especially the agricultural production will encounter dry seas
APA, Harvard, Vancouver, ISO, and other styles
24

Orbay, Berk. "An Interactive Evolutionary Algorithm For The Multiobjective Relocation Problem With Partial Coverage." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613196/index.pdf.

Full text
Abstract:
In this study, a bi-objective capacitated facility location problem is presented which includes partial coverage concept and relocation of facility nodes. In partial coverage, a predefined distance between a demand node and a facility node is assumed to be fully covered. After the predefined distance, the service level commences to decay linearly. The problem is designed to consider the existence of already functioning facility nodes. It is allowed to close these existing facilities and open new facilities in potential sites. However, existing facility nodes are strongly favored against new fa
APA, Harvard, Vancouver, ISO, and other styles
25

Namaziesfanjani, Mina. "A Survey On Known Algorithms In Solving Generalizationbirthday Problem (k-list)." Master's thesis, METU, 2013. http://etd.lib.metu.edu.tr/upload/12615627/index.pdf.

Full text
Abstract:
A well known birthday paradox is one the most important problems in cryptographic applications. Incremental hash functions or digital signatures in public key cryptography and low-weight parity check equations of LFSRs in stream ciphers are examples of such applications which benet from birthday problem theories to run their attacks. Wagner introduced and formulated the k-dimensional birthday problem and proposed an algorithm to solve the problem in O(k.m^ 1/log k ). The generalized birthday solutions used in some applications to break Knapsack based systems or collision nding in hash function
APA, Harvard, Vancouver, ISO, and other styles
26

Alfaro, Allende Luis Angel, and Allende Luis Angel Alfaro. "Influencia de la Guía Didáctica QA -1 en el rendimiento académico de los estudiantes de Didáctica de la Química de la Facultad de Educación de la Universidad Nacional Mayor de San Marcos." Master's thesis, Universidad Nacional Mayor de San Marcos, 2017. http://cybertesis.unmsm.edu.pe/handle/cybertesis/6403.

Full text
Abstract:
Establece la influencia positiva de la aplicación de la Guía Didáctica QA.1, de creación del autor, en el rendimiento académico de los alumnos de pregrado de la especialidad de Biología y Química del curso de Didáctica de la Química de la Facultad de Educación de la Universidad Nacional Mayor de San Marcos. En la guía se considera que el rendimiento académico de los alumnos mejorará si se enfoca la enseñanza de la química desde los criterios conocimiento y comprensión de la ciencia, diseño de la investigación, ejecución y procesamiento de datos, y reflexión de la ciencia. Es una investigación
APA, Harvard, Vancouver, ISO, and other styles
27

Alfaro, Allende Luis Angel. "Influencia de la Guía Didáctica QA -1 en el rendimiento académico de los estudiantes de Didáctica de la Química de la Facultad de Educación de la Universidad Nacional Mayor de San Marcos." Master's thesis, Universidad Nacional Mayor de San Marcos, 2017. https://hdl.handle.net/20.500.12672/6403.

Full text
Abstract:
Establece la influencia positiva de la aplicación de la Guía Didáctica QA.1, de creación del autor, en el rendimiento académico de los alumnos de pregrado de la especialidad de Biología y Química del curso de Didáctica de la Química de la Facultad de Educación de la Universidad Nacional Mayor de San Marcos. En la guía se considera que el rendimiento académico de los alumnos mejorará si se enfoca la enseñanza de la química desde los criterios conocimiento y comprensión de la ciencia, diseño de la investigación, ejecución y procesamiento de datos, y reflexión de la ciencia. Es una investigación
APA, Harvard, Vancouver, ISO, and other styles
28

Gurol, Selime. "Statistical Learning And Optimization Methods For Improving The Efficiency In Landscape Image Clustering And Classification Problems." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/12606595/index.pdf.

Full text
Abstract:
Remote sensing techniques are vital for early detection of several problems such as natural disasters, ecological problems and collecting information necessary for finding optimum solutions to those problems. Remotely sensed information has also important uses in predicting the future risks, urban planning, communication.Recent developments in remote sensing instrumentation offered a challenge to the mathematical and statistical methods to process the acquired information. Classification of satellite images in the context of land cover classification is the main concern of this study. Land c
APA, Harvard, Vancouver, ISO, and other styles
29

Kirlar, Baris Bulent. "Isomorphism Classes Of Elliptic Curves Over Finite Fields Of Characteristic Two." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/2/12606489/index.pdf.

Full text
Abstract:
In this thesis, the work of Menezes on the isomorphism classes of elliptic curves over finite fields of characteristic two is studied. Basic definitions and some facts of the elliptic curves required in this context are reviewed and group structure of elliptic curves are constructed. A fairly detailed investigation is made for the isomorphism classes of elliptic curves due to Menezes and Schoof. This work plays an important role in Elliptic Curve Digital Signature Algorithm. In this context, those isomorphism classes of elliptic curves recommended by National Institute of Standards and Tech
APA, Harvard, Vancouver, ISO, and other styles
30

Aydin, Nadi Serhan. "Pricing Power Derivatives: Electricity Swing Options." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/3/12612122/index.pdf.

Full text
Abstract:
The Swing options are the natural outcomes of the increasing uncertainty in the power markets, which came along with the deregulation process triggered by the UK government&rsquo<br>s action in 1990 to privatize the national electricity supply industry. Since then, the ways of handling the risks in the price generation process have been explored extensively. Producer-consumers of the power market felt confident as they were naturally hedged against the price fluctuations surrounding the large consumers. Companies with high power consumption liabilities on their books demanded tailored financia
APA, Harvard, Vancouver, ISO, and other styles
31

Simsek, Gorkem. "Energy Preserving Methods For Korteweg De Vries Type Equations." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12614216/index.pdf.

Full text
Abstract:
Two well-known types of water waves are shallow water waves and the solitary waves. The former waves are those waves which have larger wavelength than the local water depth and the latter waves are used for the ones which retain their shape and speed after colliding with each other. The most well known of the latter waves are Korteweg de Vries (KdV) equations, which are widely used in many branches of physics and engineering. These equations are nonlinear long waves and mathematically represented by partial differential equations (PDEs). For solving the KdV and KdV-type equations, several nume
APA, Harvard, Vancouver, ISO, and other styles
32

Ozakin, Cigdem. "On The Expected Value Of The Linear Complexity Of Periodic Sequences." Master's thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/12605541/index.pdf.

Full text
Abstract:
In cryptography, periodic sequences with terms in F2 are used almost everywhere. These sequences should have large linear complexity to be cryptographically strong. In fact, the linear complexity of a sequence should be close to its period. In this thesis, we study the expected value for N-periodic sequences with terms in the finite field Fq. This study is entirely devoted to W. Meidl and Harald Niederreiter&rsquo<br>s paper which is &ldquo<br>On the Expected Value of the Linear Complexity and the k-Error Linear Complexity of Periodic Sequences&rdquo<br>We only expand this paper, there is no i
APA, Harvard, Vancouver, ISO, and other styles
33

Akman, Tugba. "Discontinuous Galerkin Methods For Time-dependent Convection Dominated Optimal Control Problems." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613394/index.pdf.

Full text
Abstract:
Distributed optimal control problems with transient convection dominated diffusion convection reaction equations are considered. The problem is discretized in space by using three types of discontinuous Galerkin (DG) method: symmetric interior penalty Galerkin (SIPG), nonsymmetric interior penalty Galerkin (NIPG), incomplete interior penalty Galerkin (IIPG). For time discretization, Crank-Nicolson and backward Euler methods are used. The discretize-then-optimize approach is used to obtain the finite dimensional problem. For one-dimensional unconstrained problem, Newton-Conjugate Gradient metho
APA, Harvard, Vancouver, ISO, and other styles
34

Ozmen, Ayse. "Robust Conic Quadratic Programming Applied To Quality Improvement -a Robustification Of Cmars." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12612513/index.pdf.

Full text
Abstract:
In this thesis, we study and use Conic Quadratic Programming (CQP) for purposes of operational research, especially, for quality improvement in manufacturing. In previous works, the importance and benefit of CQP in this area became already demonstrated. There, the complexity of the regression method Multivariate Adaptive Regression Spline (MARS), which especially means sensitivity with respect to noise in the data, became penalized in the form of so-called Tikhonov regularization, which became expressed and studied as a CQP problem. This was leading to the new method CMARS<br>it is more model-
APA, Harvard, Vancouver, ISO, and other styles
35

Sulak, Fatih. "Constructions Of Bent Functions." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/12607035/index.pdf.

Full text
Abstract:
In cryptography especially in block cipher design, Boolean functions are the basic elements. A cryptographic function should have high nonlinearity as it can be attacked by linear attack. In this thesis the highest possible nonlinear boolean functions in the even dimension, that is bent functions, basic properties and construction methods of bent functions are studied. Also normal bent functions and generalized bent functions are presented.
APA, Harvard, Vancouver, ISO, and other styles
36

Ozadam, Hakan. "Repeated-root Cyclic Codes And Matrix Product Codes." Phd thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12615304/index.pdf.

Full text
Abstract:
We study the Hamming distance and the structure of repeated-root cyclic codes, and their generalizations to constacyclic and polycyclic codes, over finite fields and Galois rings. We develop a method to compute the Hamming distance of these codes. Our computation gives the Hamming distance of constacyclic codes of length $np^s$ in many cases. In particular, we determine the Hamming distance of all constacyclic, and therefore cyclic and negacyclic, codes of lengths p^s and 2p^s over a finite field of characteristic $p$. It turns out that the generating sets for the ambient space obtained by tor
APA, Harvard, Vancouver, ISO, and other styles
37

Polat, Zeynep Sonay. "Studies On The Generalized And Reverse Generalized Bessel Polynomials." Master's thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/12604961/index.pdf.

Full text
Abstract:
The special functions and, particularly, the classical orthogonal polynomials encountered in many branches of applied mathematics and mathematical physics satisfy a second order differential equation, which is known as the equation of the hypergeometric type. The variable coefficients in this equation of the hypergeometric type are of special structures. Depending on the coefficients the classical orthogonal polynomials associated with the names Jacobi, Laguerre and Hermite can be derived as solutions of this equation. In this thesis, these well known classical polynomials as well as another
APA, Harvard, Vancouver, ISO, and other styles
38

Guleroglu, Cigdem. "Portfolio Insurance Strategies." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614809/index.pdf.

Full text
Abstract:
The selection of investment strategies and managing investment funds via employing portfolio insurance methods play an important role in asset liability management. Insurance strategies are designed to limit downside risk of portfolio while allowing some participation in potential gain of upside markets. In this thesis, we provide an extensive overview and investigation, particularly on the two most prominent portfolio insurance strategies: the Constant Proportion Portfolio Insurance (CPPI) and the Option-Based Portfolio Insurance (OBPI). The aim of the thesis is to examine, analyze and compar
APA, Harvard, Vancouver, ISO, and other styles
39

Unver, Alper. "Determination Of Stochastic Model Parameters Of Inertial Sensors." Phd thesis, METU, 2013. http://etd.lib.metu.edu.tr/upload/12615548/index.pdf.

Full text
Abstract:
ABSTRACT DETERMINATION OF STOCHASTIC MODEL PARAMETERS OF INERTIAL SENSORS &Uuml<br>nver, Alper PhD, Department of Electric Electronic Engineering Supervisor: Prof. Dr. M&uuml<br>beccel Demirekler January 2013, 82 pages Gyro and accelerometer systematic errors due to biases, scale factors, and misalignments can be compensated via an on-board Kalman filtering approach in a Navigation System. On the other hand, sensor random noise sources such as Quantization Noise (QN), Angular Random Walk (ARW), Flicker Noise (FN), and Rate Random Walk (RRW) are not easily estimated by an on-boa
APA, Harvard, Vancouver, ISO, and other styles
40

Purutcuoglu, Vilda. "Unit Root Problems In Time Series Analysis." Master's thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/2/12604701/index.pdf.

Full text
Abstract:
In time series models, autoregressive processes are one of the most popular stochastic processes, which are stationary under certain conditions. In this study we consider nonstationary autoregressive models of order one, which have iid random errors. One of the important nonstationary time series models is the unit root process in AR (1), which simply implies that a shock to the system has permanent effect through time. Therefore, testing unit root is a very important problem. However, under nonstationarity, any estimator of the autoregressive coefficient does not have a known exact distribut
APA, Harvard, Vancouver, ISO, and other styles
41

Ekmekci, Onur Tunc. "Defining General Conservation Principles For Primary Schools Of Rum Minority In Istanbul." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614589/index.pdf.

Full text
Abstract:
In this thesis, it is aimed to make a study on Primary Schools of Rum Minority in Istanbul, and in light of this study, to define general principles for conservation studies on these schools. Rum Minority had an important part in social and cultural life in Istanbul and in late 19th Century, their impact in the city increased with their financial power, especially in Beyoglu. Increase in number of schools they built also occurred in the same timeline. Schools built in and after this term by Rum Minority were built as important public buildings of a minority group and possess strong authenticit
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!