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In order to provide suitable blood transfusion samples to patients, the blood bag should be kept at a uniformly maintained temperature to prevent deterioration during transportation. Therefore, this paper presents a blood monitoring and management system for use in hospitals. This system may continuously report the temperature of the blood bank(More)
Conventional multicast group communications need a dynamic mechanism for group management according to the join/leave of receivers and for the modification of membership information and a QoS management for a reliable multicast group communication. The Group Management Protocol (GMP) is an application-layer control protocol to supports the group management(More)
Ad hoc networks are extremely flexible and easy to deploy wireless networks. Now, they are extended to be interconnected to the Internet, which are commonly called a hybrid ad hoc network. Still, there are some problems such as increase of network overhead and delay caused by broadcasting control messages in route discovery process. Recently, to improve(More)
Rain plays a major impairment factor for propagation of electromagnetic waves in atmosphere for systems operating at frequencies above 10 GHz. Several effects are noted such as depolarization, scintillation, interference due to scattering and extra attenuation which seems to increase with frequency. To mitigate its effect in satellite communication,(More)
Differences in the oxidative stress and antioxidant responses of three marine algal species, i.e., Ulva pertusa (a chlorophyte), Laminaria japonica (a phaeophyte), and Grateleoupia lanceolata (a rhodophyte), collected from intertidal region of Korea, upon exposure to UVA and UVB were investigated. The U. pertusa exhibited a strong adaptive antioxidant(More)
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