Matematik ve Bilgisayar Bölümü Tezleri

Permanent URI for this collectionhttps://hdl.handle.net/20.500.12416/222

Browse

Now showing 1 - 20 of 100

Principles of designing adaptable smart computerized system
(Çankaya Üniversitesi, 2014) Wareed, Musaab Amer
The aim of this thesis is to design and implement a smart system that used for controlling a number of electronic devices and sensors remotely and to receive alerts when fire, movement and abnormal temperature and humidity are detected by sensors. The controlling operation on devices will be by using a mobile phone through sending SMS to the smart system. Also the alerts will be received as SMS form from the system. Originally, the smart system contains two main parts which are Arduino microcontroller and GSM modem. The Arduino is responsible for controlling electronic devices and sensors which are interfaced with it. The main function of second main part that called GSM is to deliver SMS which exchanged between the mobile phone and microcontroller. The Arduino microcontroller reads the data of sensors, when it detects abnormal values it will inform the GSM which in its turn will send SMS to the mobile phone to inform the user of system about the situation. The smart system can be controlled from any mobile phone model and can be putted in any place. All in all, a security and easier life can be provided by this smart system
Effects of e-government and GIS technology for developing services in education sector case study: Schools in Kirkuk City center
(Çankaya Üniversitesi, 2014) Abdulrahman, Bashar Adnan
The field of e-government has become an important subject around the globe because it refers to the delivery of government services by means of technology to save resources and bring governments closer to their citizens and to the private sector. This study underlines how most e-government projects require spatial datasets to improve public services. Pertinent examples already found/extant in the literature are examined, and investigating schools locations in Kirkuk city are selected for the case study. In parallel to the literature review, a study of the geographical distribution of schools is shown to be necessary such that land use for educational facilities occupies an unobjectionable part of the Kirkuk urban area, which in turn makes decision makers take this (land) use into account when the government is to establish city master plans. This thesis presents how establishing a working GIS in the education services would improve e-government applications due to the fact that GIS tools and facilities improve flexibility and accuracy in the management of both spatial and non-spatial datasets. As the measurements recognized by the EU and UN show, e-government initiatives need to be prepared above accurate, clean, timely and controlled shared datasets. Therefore, establishing strong databases and making legislative changes to enable data sharing among government agencies are found to be the primary targets of both central and local governments. The thesis shows that establishing a working GIS to provide services to students, teachers, citizens and decision makers in the education sector is technically feasible. However, the starting point ought to be collecting raw data from the field and ensuring that the data is updated in a timely manner, and not acquiring hardware and software. In so doing, Iraq can rank higher in international e-government measurement reports
Orthogonality of sturm-liouville problems and some asymptotic behaviours
(2015) Aljumaili, Ahmed
In this thesis, we discussed some important aspects of Sturm-Liouville theory such as orthogonality, Fourier series and asymptotic formulas for eigenvalues and eigenfunctions. After giving an introduction about the history of Sturm-Liouville Theory. We gave the way to convert any problem into regular Sturm-Liouville problem by finding suitable weight function. We included a method of finding asymptotic formulas for eigenvalues and eigenfunctions of Sturm-Liouville Problems. We also obtain an important formula about the solutions of a specific SLproblem and obtain formulas of eigenvalues and eigenfunctions of this problem.
Management of electronic commerce and website application in electronic products marketing in Iraq
(Çankaya Üniversitesi, 2014) Ibrahem, Ahmed
The consumer -to- consumer is one of electronic commerce (e- commerce) types. The primary aim of an e- commerce site is to buy and sell goods and services online. The purpose of this study is to design a web based interface for online shopping in Iraq. It is an open market between consumers to consumer shows us how to market electronic products. This system designed by using PHP language and MySQL server for database. The finding of this research is the application enables consumers to sell their product online. Also, the website facilitates buying and selling on the Internet, saving time, search for a product, saving the cost of transportation, as well as the possibility of adding a product by the customer. Further, in this website can post buying and selling through social media and sharing information with (Facebook and Twitter). Also, shopping cart is important for every online shopping, it facilitates to add and delete a product with shopping. Finally, customer should participate in the website as a member registering by username and password number for each customer to be able shopping
Numerical solutions of non-linear volterra integral equations of the second kind
(2015) Saleh, Merewan
Bu tezde lineer-olmayan ikinci çeşit Volterra integral denklemlerinin nümerik integrasyon (Ikizkenar kuralı and Simpson kuralı), Runge-Kutta metodu (klasik üçüncü-derece, optimal üçüncü-derece, Bu methotlar varlığı ve diferensiyel denklemler ile integral problemlerinin çözülmesinde kolaylıkla kullanılmakta olduğu bilinmektedir, ancak özellikle lineer-olmayan integral denklemlere uygulamasında çeşitli zorluklar ortaya çıkmaktadır, çünkü lineer olmayan terimler integralin çekirdeğinde mevcuttur. Bu nedenle söz konusu methotların ve teknikler üzerinde, lineer-olmayan integral denklemlere de uygulanabilecek biçimde, bazı düzenlemeler yapılma ihtiyacı olduğu görülmüştür.
Analyzing digital image manipulation detection algorithms
(2015) Majeed, Sinan Nazar
In recent years tampering in digital image is becoming very widespread and more interesting. With powerful Image software, editing tools make a tampered image easy, thus the field of image forensic has become very important and crucial. In this thesis, investigation is made on the image by depending on the traces that occur when the soft correlation between rows and columns are divested in altered images, in term of linear dependency and exploitation of these traces in image forensic, depending on the properties of singular value decomposition and derived features which can be helpful and accurate sufficiently to reveal the tampering that is done on the genuine digital image.
Volterra type integral equations
(2015) Altameemi, Ali
It is truism that, Volterra integral equations have many applications in various disciplines of sciences. Therefor, these equations have been attracted the attention of a huge number of mathematicians and scientists who work in the areas in which these equations appear. Hence, it is worth of note to study these equations from theoretical and computational points of views. Because of the significance and broadly usage of these equations in numerous fields of mathematics. So, in this thesis, the first and the second kind of Volterra integral equations have been defined. The uniqueness theorems of these equations are discussed by using the fixed point theory. Many methods to solve linear as well as nonlinear Volterra integral equations are being considered. Then, methods of solving systems of such equations are also mentioned. In addition to the above mentioned, an attention is paid to the singular Abel Volterra integral equation.
A comprehensive comparison of NOSQL and relational database management systems
(Çankaya Üniversitesi, 2017) Taha, İhsan Ahmed
In the last four 'decades, relational database management systems have been used widely to manage structured data in different disciplines. Nowadays, data resources increase rapidly in different forms (including structured, semi-structured and even unstructured data), requiring us to find another way to manage data. NoSQL database management systems previously were exhibited a few years ago, to meet the requirements of a variety of data forms. Many papers, and blogs have claimed that there is a trade-off between using relational database systems and non-relational database systems (NoSQL). In this study, we propose a novel investigation of the performance of relational and non-relational database systems in terms of the main operations that every database performs, such as insertion, reading, updating, and deleting by using the recent version of Yahoo Cloud Serving Benchmark (YCSB-0.9.0) in order to evaluate the performance of MySQL (RDBM) versus Mongo DB and Apache Cassandra (NoSQL). A testing environment is set up for each workload and the responses for each database management system used in the study are examined for each workload. It is worth mentioning that, although we use the latest version of Yahoo Cloud Serving Benchmark, it does not support the latest release of most database management systems, be they relational or non-relational. The results of this study show that the performance of each system differs due to the differences in their respective data storing mechanisms. In addition, the results of this study present the weaknesses and strengths of each database system used in the study.
On caputo modification of the hadamard fractional derivative
(Çankaya Üniversitesi, 2014) Gambo, Yusuf Ya'u
In this thesis, more properties of the Caputo modification of the Hadamard fractional derivatives are studied. The fundamental theorem of fractional calculus (FTFC) in the Caputo-Hadamard setting is presented. The theorem is then used in formulating several original results
On caputo modification of the hadamard fractional derivatives
(2014) Gambo, Yusuf Ya’u
In this thesis, more properties of the Caputo modification of the Hadamard fractional derivatives are studied. The fundamental theorem of fractional calculus (FTFC) in the Caputo-Hadamard setting is presented. The theorem is then used in formulating several original results.
Investigation of amazon and google for fault tolerance strategies in cloud computing services
(2015) Al-Raheym, Shereen
Cloud computing has recently become an attractive topic due to its ability to offer information technology solutions through virtual machines as on-demand services to share and consume resources over the Internet. As a result of rapid development in such services, the necessity of fault tolerance in the cloud is a major concern with reliability, availability and dependability is more critical to this new service type. This thesis investigates techniques and means of tolerating cloud services as well as cloud customers’ systems/enterprises execution over the cloud safe from failures. As one of this findings shows, failures in cloud enabled services should be expected to occur hence they should be handled. The essential features of implementing fault tolerance strategies guarantee the business continuity, avoid financial lost, recovering systems from failures, and provide disaster recovery as well. The specific focus is to explore scenarios of avoiding/recovering from failures through redundancy, checkpoint and replication. Commercial IaaS providers such as Amazon’s AWS and Google’s GCE are taken as examples as they tolerate their infrastructure from failures; in this way a robust architecture with fault tolerance property could be proposed for a system/enterprise. Hence, a general conceptual model with fault tolerance considerations has been proposed. With this basis, addressing potential failures in detail, implementing fault tolerance techniques, organizing teamwork to setup business policies are left for future work. Such limitations can be addressed through online questionnaires to collect information for case studies.
Solution of fractional burger equation and studing the statistical properties of the solution
(2014) Al-Jaf, Sarkesh
The main purpose of this thesis is to find the solution of fractional Burger equation and study statistical properties of the solution. The solution was found in a truncated series form. As shown in the figure the waves are due to earth quake. The statistical concepts are used to ensure that the solution agrees with nature.
Developing an efficient stream control transmission protocol (SCTP) multi-streaming using pluggable priority algorithm for network optimization
(Çankaya Üniversitesi, 2014) Al-Hadeethi, Abdulbaqi Khashea
This thesis introduces a pluggable priorities algorithm for the SCTP protocol(PP-SCTP) as a method of reducing delay in the transmission of main data during periods of low bandwidth access. The SCTP protocol in the transport layer uses a Round-Robin or First-Come, First-Served method to transfer the data. These methods do not provide efficient and flexible choices. We set the priority of the streams in accordance with client demand. The PP-SCTP is useful for applications that send different types of data, such as still images, video, text, and documents. The goal of this thesis is to obtain a more flexible and more efficient choice for the end user or customer. The problem germane to this thesis lies in the transport layer, examples of which include the SCTP protocol with multi-streaming. Coding was written to test the various combinations and permutations of algorithms and protocols. In Chapter 5, we discuss the results of our work with the PP-SCTP priority algorithm, most notably its greater efficiency and the reduction of average latency in comparison to other algorithms and protocols in various combinations and permutations, including the First-Come, First-Serve data transfer method
A node authentication mechanism on wireless sensor networks
(2015) Ameen, Kameran Ali
A wireless sensor network (WSNs) is a network that consists of a large number of ultra-small autonomous devices which are resource-constrained called sensor nodes. Sensor networks may be deployed for a wide range of applications, including military sensing, environment monitoring and patient monitoring, etc. Sensors can collect, process and transmit data in a distributed and cooperative manner. They are usually deployed in an unattended environment (open area) and communicate with each other through wireless channels. Therefore, security is necessary to protect data from various types of attacks. The authentication process is one of the important ways to achieve security in WSNs. In this thesis, the pros of both symmetric and asymmetric key cryptography are used to achieve security. The proposed scheme secures communication by distributing the public key securely to both the base station and cluster head; as a result, this yields security of the message. The proposed scheme is efficient due to the application of data sequence over ECC, which in turn depends on the ECDLP. Therefore, it provides far more security and resistance against a number of attacks when compared with other existing schemes.
Discrete mittag–leffler functions in fractional calculus
(2011) Benli, Betül
A speci c type of Caputo q{fractional di erential equations has been solved. The solutions have been expressed via the generalized q- Mittag Le er functions which were comprised a while ago. The method of successive approximation has been used to reach the solutions. Mittag-Le er function makes q-analog, which was proposed by Kilbas and Saigo before, generalized. In addition to this, discrete Mittag-Le er functions and q-analog Mittag- Le er functions, concluded by T. Abdeljawad and D.Baleanu recently, have been discussed in the content of this thesis. Keywords: Fractional Sums, Fractional Di erences, Mittag{Le er Function, Q{Mittag-Le er Function, Discrete Mittag{Le er Function, Caputo Q{Fractional Integral, Caputo Q{Fractional Derivatives, Time Scale, Euler Lagrange Equation.
An evaluation of three search engines (google, yahoo, bing) based on arabic user perception
(Çankaya Üniversitesi, 2017) Azeez, Suad Shatti
With the rapid increase of Arabic users around the world, a need of understanding the preferences of this wide Stratum of society is important. To do so we designed a questionnaire to evaluate three search engines (Google, Yahoo, and Bing) to reveal the Arabic user's perception of these three search engines. Each engine has its own features and it is own search methods to achieve the main purpose of search engines which is retrieving relevant results. This study exposes the pros and cons of the three tested search engines which give the opportunities to search engine developers to enhance their products. The results showed that Google performs very well comparing with Yahoo and Bing in some kind of data (text and video search) whereas image and advertisements Yahoo seems to be more accurate, Bing captivated many participants with its attractive homepage and useful features except supporting Arabic language in Bing map. Our results will help engineers and designers to improve their search engines in term of the design of homepages and result, improving their search engines algorithms for Arabic queries.
Mathematical aspects of superintgrable systems
(2004) Defterli, Özlem
Superintegrallenebilir Sistemler
Hybrid System Modeling and Simulation with Tumor-Immune System Application
(2016) Al-Windawi, Hannadi Nozad
Cancer dynamics exhibits complex behavior due to different factors. Immune system interaction is one of those factors. There exist mathematical models that investigate these interactions. In this thesis, we have used hybrid system modeling that offers several improvements. One of the main advantages of this modeling is that we can investigate through sensitivity analysis the effect of changing the threshold values, which means a point or level at which range changes in model behavior. Hybrid systems provide a promising area in mathematical modeling of many biological and physiological systems. From this point of view, to test the capability of hybrid systems in the sense of simulation is a strong motivation. In this work, we have observed the capability of hybrid system modeling in terms of analysis and computation. We have verified that when we substitute the solvable one, we reduce the complexity in the sense of reasonable computational resources
Variational iteration method for fractional Davey-Stewartson equations
(2012) Yılmaz, Tuğba
The Variational iteration method is a new and powerful method to solve both linear and nonlinear differential equations. The Variational iteration method was applied to the fractional Davey-Stewartson equations within the Caputo sense and approximate analytical solutions were obtained
On discrete fractional calculus with applications
(Çankaya Üniversitesi, 2015) Hammood, Hayder
In this thesis, we present the discrete fractional calculus in the frame of the Delta difference operator and discuss the most important properties and theorems. In order to solve delta fractional difference initial value problems, we discuss the Laplace transform related to this calculus and give the main formulas that are needed to solve such problems. The discrete fractional calculus in the frame of the Nabla difference operators and the related Laplace transforms are discussed and some Nabla fractional difference initial value problems are solved as well.

Browse

Browsing Matematik ve Bilgisayar Bölümü Tezleri by Issue Date