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Three-dimensional UnderWater Acoustic Sensor Networks (UWASN) are supposed to be deployed for many applications. However, a protocol for sensors' self-localization and time-synchronization in UWASN remains a challenge problem. In this paper, we developed a multilateration algorithm which could reliably localize and synchronize underwater sensor networks by(More)
Recommendation systems mainly focus on three specific domain like that CB filtering, CF-based filtering and Context-aware filtering.In content filtering, using users publishing and Interaction with in social network to calculate the similarity between users.Then recommend items to a user. The multimedia services and contents in the Internet, People usually(More)
MicroRNAs (miRNAs) have been proven to play crucial roles in cancer, including tumor chemotherapy resistance and metastasis of non-small-cell lung cancer (NSCLC). TGFβ signal pathway abnormality is widely found in cancer and correlates with tumor proliferation, apoptosis and metastasis. Here, miR-17, 20a, 20b were detected down-regulated in A549/DDP cells(More)
—One of the most crucial functionalities of cognitive radio networks is spectrum sensing. Completing this task in an accurate manner requires opportunistic spectrum access. Traditionally , sensing has been performed through energy detection by each individual secondary user. In order to increase accuracy, individual measurements are aggregated using(More)