We consider a tandem queue with two stations. The first station is an s-server queue with Poisson arrivals and exponential service times. After terminating his service in the first station, a customer enters the second station to require service at a single server, while in the meantime he is blocking his server in station 1 until he completes service in station 2, whereupon the server in stati...

IEEE 802.16 is a Broadband Wireless Access (BWA) network and thus it is considered to be an alternative solution to wired broadband technologies. Relay station plays a promising role of extending the range of Base station for long distances in WiMAX networks. Relay station is suitable to areas with limited infrastructure such as rural, hilly and lakes, where it is difficult to install many Base...

This study developed a real-time remote monitoring system (RTRMS) to receive the vibration frequency of bridge pier. The system included a front station and a middle station. A multi-hop wireless routing is employed to transmit the data from the front to the middle station. The front station includes a receiver equipped to receive the vibration frequency, and a wireless sensor network to transm...

Dr. Jinggao Liu , USDA, ARS, Southern Plains Agricultural Research Center, College Station, TX Dr. Alois A. Bell , USDA, ARS, Southern Plains Agricultural Research Center, College Station, TX Dr. Robert D. Stipanovic , USDA, ARS, Southern Plains Agricultural Research Center, College Station, TX Dr. Lorraine S. Puckhaber , USDA, ARS, Southern Plains Agricultural Research Center, College Station, TX

OBJECTIVE Single-station N2 (Stage IIIA) non-small-cell lung cancer has been reported to have a relatively favorable prognosis after surgery. However, most previous studies examined surgical outcomes in N2 disease by pathologic nodal status but not by clinical nodal status. The objective of this study was to clarify the surgical outcomes in clinical single-station N2 non-small-cell lung cancer ...

This paper proposes the solution for improving the services provided by the transport management by using GPS and GSM modem integration. The system mainly consists of three modules. (1) Bus station module (2) Bus module (3) Base station module. The modules are connected to PC and GSM modem. The initial information containing the bus number and license plate from bus station module is sent to bu...

The IEEE 802.11 standard requires that a beacon station has to stay in awake after generating a beacon frame to serve probe request. This requirement make a reason to consume valuable power of beacon station even though there are no frame exchanges between stations or there exists only one station in the ad hoc network. This paper proposes an ePSM(Enhanced Power Save Mode) to reduce effectively...

The paper studies a closed queueing network containing a server station and k identical client stations. The client stations are subject to breakdowns, and a lifetime of each client station is assumed to be a random variable independent of all other ones having the probability distribution ) (x G . The server station is an infinite server queueing system, and client stations are single server q...

We investigate the problem of repacking stations in the FCC’s upcoming, multi-billion-dollar “incentive auction”. Early efforts to solve this problem considered mixed-integer programming formulations, which we show are unable to reliably solve realistic, national-scale problem instances. We describe the result of a multi-year investigation of alternatives: a solver, SATFC, that has been adopted...