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Building energy accounts large amount of the total energy consumption, and smart building energy control leads to high energy efficiency and significant energy savings. A compact and accurate building thermal model is important for designing the efficient energy control system. In this paper, we propose an accurate thermal behavior modeling technique for general and complicated buildings. This new...
Power integrity (PI) is among the main concerns in the design process of multilayer packages and printed circuit boards (PCBs). Based on Transmission Matrix Method (TMM), the PI performance of a Ball grid array (BGA) package mounted on a PCB is investigated in this paper. The power/ground planes and the power/ground balls on a PCB and package are entirely equivalent to distributed RLGC circuits model...
Indoor localization enjoys a wide range of applications from helping firefighters navigate through a burning building to business men trying to find a room in a complex building. The mainstream indoor localization technology is based on the wireless signal strength such as WLAN and Zigbee. However, the special characteristics of the indoor environment usually results in the large localization error...
Location Based Notification (LBN) aims to alert the users in a target area with the information of interest to them. With a wide range of applications, LBN has been gaining more and more attraction among wireless users and service providers. The mainstream centralized solution based on cellular networks may incur high service cost. In this paper, we present an innovative scheme called Phoenix, which...
Influenza epidemics detection is critically important in recent years because there is a significant economic and public health impact associated with the influenza epidemic. Influenza epidemics detection attracts much attention from governments, organizations, and research institutes, and recently, a novel method using search engine query data to detect influenza activities was presented by Google...
Using beam wave interaction simulator (BWIS), one module of microwave tube simulator suite (MTSS), a wideband helix TWT has been accurately simulated. The slow-wave circuit parameters are calculated by high frequency circuit simulator.
The new version HFCS-E has capability to model SWS with dielectric loss rods. Some helix SWSs are simulated and results show that dielectric loss will cause resonance frequency a small falling, but not obvious difference of other parameters of helical SWS.
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