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A wireless biotelemetry system operates in vivo, which requires low power consumption for long-lasting operation, high output power for long transferable distance, and high throughput for incorporating many recording electrodes and transmitting raw brain signals. An implantable 2.4-GHz on-off keying (OOK) transmitter with high throughput and high energy(More)
Design techniques for a load-independent low-power low-phase-noise CMOS LC direct bulk-coupled quadrature voltage-controlled oscillator (DBC-QVCO) is presented in this paper. A capacitor tapping technique is used to lower the phase noise and achieve load-independent frequency of oscillation. Class-C operation is used to further reduce the phase noise and(More)
In this study, we propose a new web-based associative language learning system, called ALL It assumes that word association exercise and associative information about words would be useful for vocabulary learning and improving associative ability. For this, word association sources are used, and a graph theory and a graph clustering are employed as suitable(More)
In this paper, we propose a new variant of the breadth-first shortest path search called Markov Cluster Shortest Path (MCSP). This is applied to the associative semantic network to show us the flow of association between two very different concepts, by providing the shortest path of them. MCSP is obtained from the virtual adjacency matrix of the hard(More)
Learning vocabularies is an essential task when learning a foreign language. However, most learners seem to experience similar difficulties in learning vocabularies in terms of large burden and a lack of motivation. In this paper, we propose an approach for web-based vocabulary learning through personalized word association games. By applying game-based(More)
This paper reports on the application of network analysis approaches to investigate the characteristics of graph representations of Japanese word associations. Two semantic networks are constructed from two separate Japanese word association databases. The basic statistical features of the networks indicate that they have scale-free and small-world(More)
In recent years, there has been increasing interest in inter-vehicle communications (IVC) based on wireless networks to collect and distribute traffic information in various Intelligent Transportation Systems applications. In this paper, we study the performance of IVC under various traffic and communication conditions by means of simulation analysis. We(More)