In the cellular network with relays, the mobile station can benefit from both coverage extension and capacity enhancement. However, the operation complexity increases as the number of relays grows up. Furthermore, in the cellular network with cooperative relays, it is even more complex because of an increased dimension of signal-to-noise ratios (SNRs) formed in the cooperative wireless transmis...

Transmit beamforming is an effective mechanism to enable the operation of secondary users (SUs) in underlay cognitive radio networks. However, wireless nodes that are equipped with single omni-directional antennas cannot exploit the benefits of transmit beamforming on their own. Using cooperative beamforming, a group of nodes can collaborate to steer the signal towards the direction of the inte...

In multimeric membrane receptors the cooperative action of the subunits prevents exact knowledge about the operation and the interaction of the individual subunits. We propose a method that permits quantification of ligand binding to and activation effects of the individual binding sites in a multimeric membrane receptor. The power of this method is demonstrated by gaining detailed insight into...

Networked multimedia applications are increasingly deployed to support cooperative work. They may, however, pose novel challenges to design and implementation of the technology. This paper presents an empirical study of a video-based telemedicine project the DIMedS project (Development of Interactive Medical Services). The experiences from the project are summarised, with focus on the requireme...

Sensor networks require robust and efficient communication protocols to maximise the network lifetime. Radio irregularity, channel fading and interference results in larger energy consumption and latency for packet transmission over wireless channel. Cooperative multi-input multi-output (MIMO) schemes can combat the fading effects in wireless sensor network (WSN) and can significantly improve t...

BACKGROUD This study aimed to measure the poverty head count ratio and poverty gap of rural Yanbian in order to examine whether China's New Rural Cooperative Medical Scheme has alleviated its medical impoverishment and to compare the results of this alternative approach with those of a World Bank approach. METHODS This cross-sectional study was based on a stratified random sample survey of 1,...

This study sought to investigate the effect of cooperative learning on EFL learners’ creativity and motiva- tion. Accordingly, 66 pre-intermediate female learners were selected among 90 through their performance on a piloted sample Preliminary English Test. Learners were assigned into two control and experimental group. The Abedi-Schumaker Creativity Test (ACT) and the Attitude/Motivation Test ...

The recently developed genetic programming paradigm provides a way to genetically breed a computer program to solve a wide variety of problems. Genetic programming employs Darwinian survival and reproduction of the fittest and the genetic crossover (sexual recominbation) operation to evolve progressively better solutions to problems. In this chapter, a computer program that governs the behavior...

In this paper, we propose a tangible tabletop interface that can identify individual users using digital and physical objects. In environments in which multiple users are participating, the system can provide user-adaptive information regarding both digital and physical objects, and can record and utilize the operation history for individual users. Using this system, users can perform cooperati...