The space mapping is powerful technique for modeling a handset antenna. Thin-wire models are oppressed as coarse models in SM algorithm and fine models which is high accuracy electromagnetic simulations. We apply space mapping to design of antenna firstly We manipulate a coarse-mesh method of moments (MoM) solver as coarse model and align it with the fine-mesh MoM solution through space mapping...

With rapid growth in communication and computer technologies, there is a huge datatransaction in mobile, internet, TV, teleconferencing, telemedicine and military applications. Data security is important.Encryption is one of way to give security for data,in this regard this paper proposed a scanpattern technique for image encryption.It involves rearranging of mapping image based on scanpattern....

Keywords: Set-valued mapping Chebyshev center Uniformly convex Locally uniformly convex Chebyshev fixed point a b s t r a c t The existence of a continuous Chebyshev selection for a Hausdorff continuous set-valued mapping is studied in a Banach space with some uniform convexity. As applications, some existence results of Chebyshev fixed point for condensing set-valued mappings are given, and th...

In this paper, we present a prototype for our solution called Data Exchange Autonomic Manager (DEAM) [1] which has as main goal to turn Data Exchange processes into selfmanaged systems. We believe that providing data exchange processes with self-healing autonomic capability is a promising approach toward reliable self-managed and resilient data exchange processes. We describe the high level arc...

A large-capacity information hiding algorithm for HEVC is proposed. We modify the intra prediction modes in 4x4 luminance blocks to embed secret information. According to the probability distribution of the statistical optimal prediction mode and suboptimal prediction mode, we are establishing a mapping relationship between prediction modes and secret information. Modifying the intra prediction...

In this paper, a tone mapping algorithm is proposed to produce LDR (Limited Dynamic Range) images from HDR (High Dynamic Range) images. In the approach, nonlinear functions are applied to compress the dynamic range of HDR images. Security tools will be then applied to the resulting LDR images and their effectiveness will be tested on the reconstructed HDR images. Three specific examples of secu...

The paper presents a general framework and some possible architectures to get a feasible QoS (Quality of Service) mapping among network portions that use different technologies to provide a fixed service level to the terminal users. In general, there is a strong need to have “communication” among portions implementing different QoS technologies: a proper architecture, functionalities and protoc...

comparison of the effect of concept mapping and nursing process on self-regulated learning, self-efficacy and cognitive strategies in nursing students     rezaei k [1] *, kouhestani h [2] , nejat n [3] , ebrahimi fakhar h [4]     received: 12 oct , 2011 accepted: 20 jan , 2012     abstract   background & aims : the success of nursing students depends on the understanding of complex concepts and...