Recently, augmented ultrahigh frequency radio-frequency identification (UHF RFID) systems have been developed, and they contain additional components that can detect a tag's backscattered response and use this information for the localization of the tag and other applications. The methods currently employed either have poor performance because the detection… (More)
A treatment for depression, chronic pain, cravings, and more--this is the emerging field of transcranial direct current stimulation (tDCS). In tDCS, transcranial means through the skull, and direct current is a weak stimulation current delivered to the brain using noninvasive electrodes placed on the scalp [Figure 1(a)].
Radio frequency identification (RFID) is a rapidly emerging technology that enables automatic remote identification of objects. Passive and semi-passive RFID systems can be distinguished from other forms of wireless systems, because the RFID tags (transponders) communicate by way of backscatter. In addition, passive tags derive their energy from the RF… (More)
An overview of academic and industry solutions to UHF RFID portals.
—In this paper, a summary of performance evaluation is presented, including a discussion of different types of evaluations. The following performance metrics are introduced and defined: speedup, efficiency and scalability. The paper includes a literature survey of performance counters used in multiprocessor systems. A classification is established based on… (More)