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Due to recent technology advancements, RFID readers have been proposed for several vehicular applications ranging from safe navigation to intelligent transport. However, one obstacle to deployment is the unpredictable read performance. An RFID reader occasionally fails to read an RFID tag even in static circumstances, mostly due to collisions. In a mobile(More)
Stressful experiences, such as an unsatisfactory mother-infant relationship after delivery, can induce depressive disorders, and it is well-known that stressors impair memory function. The hippocampus plays a crucial role in memory processes. In the present study, we determined whether a depressed-like state induced by repeated separation of pups affects(More)
Over the past several decades, VANET has been a core networking technology to provide safety and comfort to drivers in vehicular environments. Emerging applications and services, however, require major changes on its underlying computing and networking models, which demands new network planning for VANET. This article especially examines how VANET evolves(More)
Traditionally, the vehicle has been the extension of the man's ambulatory system, docile to the driver's commands. Recent advances in communications, controls and embedded systems have changed this model, paving the way to the Intelligent Vehicle Grid. The car is now a formidable sensor platform, absorbing information from the environment (and from other(More)
Aging leads to functional changes in the hippocampus, and consequently induces cognitive deficits, such as failure of memory. Neurogenesis in the hippocampal dentate gyrus continues throughout life, but steadily declines from early adulthood. Apoptosis occurs under various pathologic and physiologic conditions, and excessive apoptotic cell death can cause a(More)
—Providing vehicles' position is essential in VANETs. Currently, GPS positioning is widely used, but the accuracy is not adequate for emerging safety applications. In order to provide accurate positioning, this paper proposes RF-GPS, a RFID-assisted localization system that reliably supports lane-level position accuracy. It improves accuracy of the GPS(More)
The smart grid is characterized by the two-way flow of electric power and information. For the information flow implementation and support, several wireless communication technologies and standards are being considered. Although there is no doubt that using wireless communications offers significant benefits over wired connections, the wireless technology(More)
With technological advancement, recent VANET applications such as safe driving and emergency rescue often demand high position accuracy. Unfor-new accuracy requirements. To overcome this limitation, this paper proposes an RFID-assisted localization system. The proposed system employs the DGPS concept to improve GPS accuracy. A vehicle obtains two different(More)
—Jamming attacks have been recently studied as wireless security threats disrupting reliable RF communication in a wireless network. By emitting noise-like signals arbitrarily on the shared wireless medium, a jammer can easily disturb the network. Countermeasures such as Frequency-Hopping Spread Spectrum enable nodes to avoid the jamming attacks by hopping(More)
Although bacterial LPS has been used to boost the susceptibility to antibody-induced arthritis, the mechanism of the action of LPS remains to be clarified. We investigated whether signals triggered by Toll-like receptor (TLR)-4 mediate the effects of LPS in the context of anti-type II collagen-induced arthritis. The mice defective in the Tlr-4 gene(More)