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In this paper, a detailed study on the applicability of various current sensor technologies and the corresponding measurement accuracy for power consumption characterization of Wireless Sensor Networks (WSN) nodes is presented and discussed. This study is useful to plan strategies to increase the life of the network and to plan the replacement of the sensor node before a failure occurs. Power consumption...
This paper considers the model-based position estimation for sensorless control of permanent magnet motors. Model parameters need to be accurately measured or estimated to ensure adequate performance of the vector control scheme. Here the attention is focused on the measurement of motor inductances and on their impact on the sensorless drive performance. Some procedures for inductance measurement,...
The causes of position estimation delays and their effects on the sensorless control of permanent magnet synchronous motor drives are investigated. The position of a permanent magnet synchronous machine is estimated via the injection of high frequency voltage signals. The delays under investigation are due to the digital implementation of the control algorithm and to the digital filters adopted for...
The contrast between self-interested behavior guided by rational choice and altruistic behavior guided by normative considerations is a central theme in the social sciences. This study suggests that market and market-like behavior, the context where self-interest is expected to dominate, is in fact often motivated by altruism. This argument is tested by examining a willingness to pay measure, a surrogate...
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