This article proposes a hybrid algorithm for spectrum allocation in cognitive radio networks based on the algorithms Analytical Hierarchical Process (AHP) and Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) to improve the performance of the spectrum mobility of secondary users in cognitive radio networks. To calculate the level of performance of the proposed algorithm...

Banking sector is one of the most important factors in development of economy. A strong and healthy banking sector is considered to be a prerequisite for sustainable economic growth. In this study, the aim is to apply Gray Relational Analysis (GRA) to measure and compare financial performances of 10 banks with common stock trading in Istanbul Stock Exchange (ISE) between the years of 2005–2011....

The aim of this paper is to investigate the multiple attribute decision making problems with intuitionistic fuzzy information, in which the information about attribute weights is incompletely known, and the attribute values take the form of intuitionistic fuzzy numbers. In order to get the weight vector of the attribute, we establish an optimization model based on the basic ideal of traditional...

This study investigated the optimization of computer numerical control (CNC) boring operation parameters for aluminum alloy 6061T6 using the grey relational analysis (GRA) method. Nine experimental runs based on an orthogonal array of Taguchi method were performed. The surface properties of roughness average and roughness maximum as well as the roundness were selected as the quality targets. An...

Abstract. Background: Coping is considered to have an important influence on well-being, especially in adolescent refugees dealing with a high amount of stress. In addition, gender differences coping are common topic for research and often attributed socialization between boys girls. Aims: The study aims at clarifying the strategies used by non-Western adolescents. Additionally, associations as...

In recent years, the volumetric sce computer vision. In computer gra structures of 2D human-body med Tomography (CT). On the other ha of 2D images in computer vision. sometimes needed. For example, volume rendering, or empty regio propose a fast carving algorithm memory usage is minimized by usi experiments show that we can ca speed is not affected by the comple