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In this paper, we propose a simple calibration method for an ad hoc microphone array that utilizes sound emissions. Assuming that each device has a function to record sound while emitting another sound, the location, the recording time offset, and the sampling frequency mismatch of each device are estimated from the time of arrival (TOA) of the sound emitted by each device. The accurate estimation...
In optimal control of a multi-agent network, each agent communicates their internal informations with the other agents and makes a decision on its behavior based on its local performance index. Moreover, those agents also may optimize another performance index for the whole network system. In order to realize a good welfare of the whole system, it is necessary to know those performance indices for...
Modification at the C5 position of an oxazole ring contained in a 2,4-concatenated tris-oxazole by Pd-catalyzed coupling reactions was performed. Novel Pd-catalyzed amination and alkoxylation of a 5-bromooxazole derivative as well as Suzuki–Miyaura coupling and Migita–Stille coupling have been demonstrated. A wide variety of functional groups, including aryl, heteroaryl, primary and secondary amines,...
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