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Öğe A Qualitative Research on the Cooperation-Based Development of Tourism in the Turkic World Countries(Ahmet Yesevi University, 2022) Tuna, M.; Özyurt, B.; Dülger, A.S.; Türkmen, F.; Uyanik, N.The main purpose of the study is to determine the existing tourism potential of Azerbaijan, Kazakhstan, Kyrgyzstan, Cyprus, Turkey and Uzbekistan and to underline the importance of cooperation in the field of tourism. In this study, criteria sampling method and maximum diversity sampling method, which are among the purposeful sampling methods, were used in determining the sample. In addition, a case study, one of the qualitative research designs, was used. In the study, after in-depth interviews were conducted with 31 people from six different Turkish states, including tourism academics, ministry representatives and managers working in the tourism sector, thematic analysis was conducted using the MAXQDA 2020 qualitative data analysis program. As a result of the study, it was stated that cooperation in the field of tourism will contribute to the development of economies and the maintenance of political unity in Turkish states. Furthermore, it was realized that the tourism destinations in these countries should be promoted and marketed in various ways and an umbrella organization for tourism cooperation needs to be established. © 2022, Ahmet Yesevi University. All rights reserved.Öğe Real time hardware implementation of the 3D chaotic oscillator which having golden-section equilibra(Institute of Electrical and Electronics Engineers Inc., 2016) Tuna, M.; Fidan, C.B.; Koyuncu, I.; Pehlivan, I.In this study, the continuous-time, autonomous, 3D chaotic system having golden-section equilibra which is recently presented in the literature is implemented firstly as discrete time on an FPGA. In this design, the 3D chaotic system was programmed in 32-bit IQ-Math (16I-16Q) fixed-point number format using VHDL and Heun algorithm. The designed system has been synthesized and tested, using Xilinx ISE design tool, on Virtex-6 FPGA chip. According to the test results, operation frequency of the FPGA-based new chaotic signal generator is certain as 406.736MHz. In addition, chip statistics and performance results of the new chaotic oscillator are presented after the Route & Place processes performed on Xilinx ISE design tool. The chaotic oscillator design realized with fixed-point number format on FPGA has been shown to be use lesser chip hardware and higher operating frequency compared to the floating-point standard. © 2016 IEEE.Öğe Real time implementation of a novel chaotic generator on FPGA(Institute of Electrical and Electronics Engineers Inc., 2015) Tuna, M.; Koyuncu, I.; Fidan, C.B.; Pehlivan, I.In this study, a new continuous-time autonomous chaotic system has been presented and implemented on FPGA. Presented a new chaotic system has been designed using the IEEE 754-1985 floating-point format and implemented using Heun algorithm with VHDL language. The designed system has been synthesized and tested on Xilinx Virtex-6 FPGA chip. According to the test results, operation frequency of the FPGA-based a new chaotic signal generator is certain as 390 MHz and performance results have been given with chip statistics. In addition, the results obtained from FPGA-based new chaotic generator have been compared with the Matlab-based numerical results and it has been observed that obtained results are successful. By the developed FPGA-based novel chaotic system model, chaos-based various engineering applications such as true random number generation and secure communication system can be performed. © 2015 IEEE.Öğe A Study on the importance of chaotic oscillators based on FPGA for true random number generating (TRNG) and chaotic systems(Gazi Universitesi Muhendislik-Mimarlik, 2018) Tuna, M.; Fidan, C.B.The random number generators are used in many areas such as cryptography, the applications where the Monte-Carlo method is used, the application of numerical analysis with computer simulations and modeling. TRNGs that is used in the field of cryptography and secure communications require fast, secure and intensive process of the physical methods that do not have deterministic character are used as entropy source. These methods are direct reinforcement, dual oscillator and chaos-based applications. In recent years the great efforts are being made in the area of developing the chaos-based TRNG structures due to noise-like features and the ability of hiding informatory sign of chaotic oscillators. Chaos based TRNG‘s within the digital circuits are an effective alternative to the traditional chaos-based analog structure. Because TRNG systems that use analog chaotic signal generator are difficult to be synchronized with the transmitter and receiver. In addition, the weak resources that generates physical noises like thermal or scattering are used on the implementation of these circuits. The digital-based FPGA chips have a significant potential in improving the information security capabilities in some applications as cryptology and securing the communication which requires high performance and processor power. In this study, performance differences between conventional method of TRNG that used chaotic system and recently designed FPGA based chaotic systems have been compered. © 2018 Gazi Universitesi Muhendislik-Mimarlik. All Rights Reserved.
