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AIED
2007
Springer
14 years 3 months ago
2007
Springer
One possible approach to reducing the cost of developing an intelligent tutoring system (ITS) is to reuse the components of an existing ITS. We used this approach to develop an And...
AIED
2007
Springer
14 years 29 days ago
2007
Springer
In this study, students studied two different domains in the same Intelligent Tutoring System, Andes. Analysis of 435 log files from 22 subjects indicated that there are two types ...
ISCAS
2007
IEEE
14 years 3 months ago
2007
IEEE
−In this paper, a novel architecture of a fractional-N phase-locked loop (PLL) is presented for digital clock generation. By employing multimodulus dividers in parallel with sequ...
ISCAS
2007
IEEE
14 years 3 months ago
2007
IEEE
— A general noncoherent chaos-shift-keying (CSK) communication system with adjustable weights is proposed in this paper. The performance of the system under additive white Gaussi...
IJSN
2007
13 years 8 months ago
2007
Wireless sensor networks (WSNs) are ad hoc networks comprised mainly of small sensor nodes with limited resources, and can be used to monitor areas of interest. In this paper, we p...