136 results
Search Results
Now showing 1 - 10 of 136
Conference Object Naturalness Analysis of the Speech Synthesized by a Tts Card(Ieee, 2016) Tora, Hakan; Uslu, BaranIt is known that the performance of a developed text-to-speech (TTS) synthesis system is assessed by subjective tests. These assessments are usually based on the intelligibility and naturalness of the synthesized speech. In this study, an investigation on relating these subjective test results, thus the naturalness of the synthesized speech, to which acoustic features is accomplished. Consequently the features which will increase the performance while synthesizing the speech are determined. Our work is focused especially on the pitch frequency and energy parameters.Conference Object Design and Fabrication of Dual-Frequency H-Shaped Antenna;(2013) Dagdeviren,B.; Yavuz Kapusuz,K.; Can,S.; Aydin,E.In this study, the parameters that effects the operating frequency of dual frequency H-shaped antenna are examined. These parameters are determined as type of the dielectric constant of substrate, substrate thickness, dimensions of the antenna and dimensions of the slots that are used to obtain shape of H. The produced and simulated results of the proposed antennas are presented and compared with the studies in literature. © 2013 IEEE.Conference Object Citation - Scopus: 2New Wavelet-Based Features for the Recognition of Jittered and Stagger Pri Modulation Types;(Institute of Electrical and Electronics Engineers Inc., 2015) Gencol,K.; Kara,A.; At,N.In dense electronic warfare environments, numerous emitters can be active simultaneously and an interleaved stream of pulses in natural time of arrival order is received by the Electronic Support Measures (ESM) receiver. It is the task of the ESM system to de-interleave this mixed pulse sequence and thus to identify the surrounding threatening emitters. In this processing, pulse repetition interval (PRI) modulation recognition has a significant role due to the fact that it can reveal the hidden patterns inside pulse repetition intervals and thus help identify the emission source and its functional purpose. In this paper, we propose new wavelet-based features for the recognition of jittered and stagger PRI modulation types. The recognition of these types are heavily based on histogram features. Experimental results show that the proposed feature set have very high recognition rates and outperform histogram based methods. © 2015 IEEE.Article Citation - Scopus: 1Yielding of Functionally Graded Long Tubes Under Thermal Loading;(2006) Akiş,T.The elastic behavior of a functionally graded non-uniform heat generating long tube is investigated analytically. The thermal conductivity and the modulus of elasticity of the tube material are assumed to vary radially in nonlinear forms. Making use of Tresca's yield criterion, the effect of grading parameters on the yielding behavior of the tube is investigated. It is observed that plastic flow may commence at the inner surface, at the outer surface or inside the tube depending on the functionally grading parameters.Conference Object Simulation Based Surgical Education Programs and Hand Performance;(Institute of Electrical and Electronics Engineers Inc., 2017) Eyuboglu,B.G.; Topalli,D.; Cagiltay,N.E.; Tonbul,G.The performance of the left- and right-hands of a person may be different from each other. In general, people use one hand with a superior performance compared to the other hand where that hand is preferred for performing daily activities. It is critical to understand their preference for right or left hand use, especially in cases where the skills should be improved to use both hands precisely in activities required special abilities such as endoscopic surgical operations. A better understanding of these cases will improve the quality of existing surgical education programs, and make a major contribution specifically in designing, improving and managing of simulation-based instructional technologies. In this study, the right- and left-hand preferences (handedness) of people are analyzed from the literature and a simulation-based experimental study is conducted in order to examine the performance differences of the participants while using their right and left hands. The results of this study aimed to guide the curriculum designers and instructional system developers for better designing and developing simulation-based surgical education programs. © 2016 IEEE.Article An Example of the Implementation of the Principle of Peace in Turkish Foreign Policy During the Ataturk Period: the Case of the Spanish Civil War(Hale Sivgin, 2022) Birlik, Gultekin K.Although many European countries took sides during the Spanish Civil War, Thrkey adopted the policy of "non-intervention". In this context, Turkey forbid selling weapons to the parties in the Civil War and the Turkish civilains to join the war. Although Turkey was negatively affected by the Civil War particularly in terms of domestic andforeign politics, she demanded that the Civil War should be settled down through peaceful ways in accordance with her policy orpeace at home peace in the world". Although the Civil War progressed against the Republicans, Turkey officially recognised the elected government of The Republicans during the Civil War. Only after the Civil War ended and it was recognised internationally, Turkey recognised the Nationalist government and sent diplomatic representative, which was a mutual act. As part of this policy, Turkey was closely concerned with the humanitarian side of the Civil War. In case of the most serious issue of the Civil War, that is the refugees, she decided to solve the problem of the Spanish Nationalist refugees in Madrid that took refuge in Turkey in line with her political tradition and took steps in the direction of bringing them to Turkey in 1937. In 1938, when the Republican Government interfered with the Spanish Nationalist Refugees that took refuge in Turkey, she showed numerous reactions. Although Turkey o f ficially recognised the elected Republican Government, during the Civil War, when needed, she offered humanitarian help to both the Nationalist and the Republican sides. Although the Thrkish media supported both sides, in line with Turkish foreign policy, it defended the idea that the Spanish domestic affairs should not be interfered with, the process of solution should be left to the Spanish people themselves and the problem should be solved peacefully.Article Citation - Scopus: 5The Relationships Between Human Values, Absenteeism Attitudes and Reasons;(Hacettepe University, 2016) Demirutku,K.; Tekinay,S.The present study was conducted to investigate the relationships between human values, absenteeism attitudes, and absenteeism reasons. A correlation study was carried out with 180 students who were enrolled in different programs in a private university located in Ankara. Value orientations of the participants was measured by using Portrait Values Questionnaire (Schwartz et al., 2012) and absenteeism attitudes were measured by using semantic differential scales. In addition, students reported the frequencies of not going to the campus in class-days, and not attending the classes despite being in the campus with various reasons on the scales developed by referring to the relevant literature to be used in the present study. Correlation analyses revealed that the importance of hedonism and stimulation values was positively, whereas the importance of self-direction and conformity values was negatively correlated with absenteeism attitudes and reasons. It was proposed that absenteeism attitudes and reasons might have the function of expressing different values. The results were discussed by taking into account the measurement- and sample-related limitations of the study, and corresponding suggestions for future research were presented. © 2016, Hacettepe University. All rights reserved.Review Citation - Scopus: 7Yielding of long concentric tubes under radial pressure based on von Mises criterion;(2005) Akiş,T.; Eraslan,A.N.The classical problem of a plain strain tube with free ends, subject to either internal or external pressure is extended to tightly fitted long concentric tubes with axially constrained ends. Making use of von Mises yield criterion, critical values of pressure leading to plastic flow are determined in terms of material properties and tube dimensions.Article A DIGITAL IMAGE ANALYSIS BASEDSURFACE POLISH MEASUREMENT SYSTEM(Pamukkale Univ, 2005) Donmez, Senayi; Sari, Y. DursunBecause marble and natural rocks have been used widely for ornamental purposes, rubbing-polishing process also became important. One of the factors determining the quality of natural rocks is surface polish. The degree of surface polish is determined by qualitative definitions based on experiences in the plants natural rocks are processed. In this study, a digital image analysis based surface polish measurement system which measures surface polish systematically was developed and its validity and suitability were investigated by making experiments on a natural rock sample.Conference Object Neuronavigation systems and passive usage problem;(Institute of Electrical and Electronics Engineers Inc., 2017) Cagiltay,N.; Topalli,D.; Borcek,A.O.; Tokdemir,G.; Maras,H.; Tonbul,G.; Aydin,E.Nowadays, neuronavigation systems are used in brain surgery procedures, known as a technology to help the surgeon during the operational period. However, the surgeons have faced several problems with the existing systems. Some of these problems are related to the systems software and user interfaces. In this study, such problems are examined and the 'Passive Usage' term is added to the literature by establishing a connection between the problems of endoscopic surgical procedures and similar issues occurred in other domains. The passive usage problem is generalized on different domains for the first time with this study. The results of the study expected to gather up the similar passive usage problems experienced in different domains. Accordingly, the methodologies and studies that are conducted in different research areas may lead to eliminate the Passive Usage problems efficiently. © 2016 IEEE.

