analyzing the vortex-induced vibration of a slender marine structure withlength to diameter ratio up to 200 is the objective of this study. this slender is free to move in both in-line and cross flow directions and immersed completely in water. three different types of shear currents pass on it and cause to vibrate slender in different forms. nowadays, these vibrations are very important for de...

in the present study, a model of a large lithium polymer (li-po) battery for use in the simulation of hybrid electric vehicles (hevs) is developed. to attain this goal, an equivalent circuit (ec) consisting of a series resistor and two rc parallel networks is considered. the accuracy and the response time of the model for use in an hev simulator are studied. the battery parameters identificatio...

New realizations of Chua L-C and L-R mutators using current conveyors (CCII) and inverting current conveyors (CCII) are introduced. Two realizations are available in the literature using CCII for each of the types of L-C and L-R mutators. For the type 1a L-R mutator three new realizations using CCII and ICCII are introduced to complete a family of four realizations. For the type 1b L-R mutator ...

Introduction Recent studies of the Current Population Survey by Tucker and Kojetin (1997) and Dixon (2001) showed that unemployment rates were related to unit nonresponse in the CPS. Since households are in sample for 8 months in the CPS (over a 16-month period), there is an opportunity for households to leave or return to the sample. However, the number of “converts”, (households that agree to...

Recent educational software applications use Web technologies like XML to improve teaching methods in distance learning environments. Though XML has been already used to implement a high number of didactic resources, specification methodologies to develop these resources are rarely applied. As a consequence, the reuse and maintenance of those resources become a difficult task. This paper emphas...