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We present a relative localization method based on sound source localization for mobile robots in outdoor environments. One robot estimates the relative position of nearby robots by receiving the sound signals they generate. In our work, a device including a buzzer and an array of four microphones is designed and installed on each mobile robot. We describe a technique for calculating the relative...
We consider odor-plume tracing using a multi-robot system in indoor natural airflow environments. The purpose of odor-plume tracing is to approach the odor source via following the found plume with mobile robot(s). Owing to the chaotic nature of the odor transport in the atmosphere, tracing the resultant patchy meandering plume down to its source is thus not a trivial task. A novel multi-robot based...
A growing recognition of the importance of the cereal cyst nematode, Heterodera avenae in winter wheat in China has highlighted the need to better understand local pathotype diversity, as this knowledge is needed to effectively deploy host resistance. Two populations of H. avenae, one each from Xushui and Xingyuang, villages near Zhengzhou, Henan, on the Huang Huai flood plain where 50% of China’s...
Intramuscularly inoculated poliovirus is thought to spread to the central nervous system through neural pathways in humans, monkeys, and the transgenic (Tg) mice carrying the human poliovirus receptor (PVR) gene. To gain insight into molecular mechanisms for the retrograde axonal transport of poliovirus, resulting in the expression of neurovirulence, a poliovirus-sensitive ICR-PVRTg21 mouse line (Tg21)...
The transgenic (Tg) mice carrying the human gene for poliovirus receptor (PVR) are susceptible to poliovirus intravenously (IV) inoculated as well as intracerebrally or intraspinally inoculated. Thus, IV-inoculated poliovirus may invade the central nervous system (CNS) through the blood–brain barrier (BBB). To know the contribution of PVR to tissue distribution and BBB permeability of IV-inoculated...
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