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Indoor localization is an important issue in wireless sensor network (WSN) studies. Sensed data may become meaningless, if the locations of sensors are not known. Traditional localization techniques do not meet the requirements of low-cost and energy-conservation while performing localization tasks. Recently, the received signal strength indicator (RSSI)-based range measurement technology is widely...
Prolonging network lifetime of wireless sensor networks (WSNs) is a challenging task because of the heterogeneity among sensor nodes inherited from real worlds in forms of different residual energy, transmission speed, transmission range, and nodal traffic. Thus, it is necessary to consider the impact of the heterogeneities when trying to balance the energy consumption in sensor nodes. In this paper,...
This paper proposes a dynamic converge cast tree generator for WSN-based environmental surveillance of orchid plantation. Such environmental surveillance requires reliably acquiring environmental parameters in a real time manner. The mobile benches in the orchid plantation create a problem of changing network topology. The mobility of the benches leads to uncertain factors, such as data transmission...
Intradialytic hypotension (IDH) is a much common complication during a hemodialysis. The prevalence of IDH is about 10-50%. Elderly people, patients with diabetes, and cardiovascular dialysis patients have the highest rate of incidences. IDH may lead to nausea, vomiting, or anxiety. In some severe cases, there will be accident like shock and death. The purpose of this paper is to integrate the technologies...
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