Tian Chu

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—In this paper, we propose an agent-based spectrum trading model, where an agent can play a third-party role in the spectrum trading process. Providing service to Secondary Users (SUs) with spectrum bought from Primary Users (PUs), the agent can make profits during the process by providing service to secondary users. During each trading period, the agent(More)
We have utilized serial analysis of gene expression (SAGE) to analyze the temporal response of human aortic endothelial cells (HAECs) to short-term chronic hypoxia at the level of transcription. Primary cultures of HAECs were exposed to 1% O2 hypoxia for 8 and 24 h and compared with identical same passage cells cultured under standard (5% CO2-95% air)(More)
We have utilized serial analysis of gene expression (SAGE) to analyze the response of human coronary artery endothelial cells (HCAECs) to laminar shear stress (LSS). Primary cultures of HCAECs were exposed to 15 dyn/cm(2) LSS for 24 h in a parallel plate flow chamber and compared with identical same passage cells cultured under static conditions. The(More)
— In this paper, we propose a general model of agent-based spectrum trading, where an agent plays a third-party role in the spectrum trading process. Providing service to Secondary Users (SU) with spectrum bought from Primary Users (PU), the agent makes profit in the spectrum trading process. We address the challenge of finding the most profitable strategy(More)
— In this paper, we propose an agent-based spectrum trading mechanism, where secondary users (SUs) can access the spectrum through the Secondary Network Operator (SNO). Buying spectrum from primary users(PUs) and reselling them to secondary users(SU), SNO plays an agent-like role in the spectrum trading process. The most significant challenge for SNO is how(More)
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