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The solar domestic hot water system is currently widely applied as a building energy saving technique. Various forms of the system exist, which should be properly applied in practical engineering. It is significant to study the adaptability of the solar domestic hot water system as it accounts for the building energy consumption in a non-negligible proportion, which is still scarcely studied based...
With the continuous growth of the wireless communication business, energy issues and environmental problems are becoming increasingly grim. Therefore, this paper investigates the energy efficient transmission scheme with cooperative sensing in cognitive radio networks, in which AND fusion rule is introduced to determine the presence of the primary user. It is proved that the energy efficiency is a...
Due to the limitation of energy, the router protocol of wireless sensor network (WSN) must minimize energy consumption to extend the network lifetime. By analyzing the hierarchical routing low energy adaptive clustering hierarchy (LEACH) in WSN, a protocol is proposed to improve of setting up cluster and data transmission route. A timer is introduced to make sure of electing the optimal sensor node...
By studying the two bottleneck functions of Ultralin NAT-PT that poor performance is caused by a mapping list search algorithm. The original system uses a no sorted sequential algorithm that often traverse the list, the execute time is very long. For each optimization algorithm that create list and search list both from the execute speed and energy consumption were assessed. The Chain Hash algorithm...
The aim of the present study is to clarify the thermal performance of the radiant cooling system with Water Flow on Roof, which employs the evaporative cooling effect on the roof surface. In this paper, the thermal performance of this system is discussed from a point of view of the coefficient of performance, using a test house. Measurement results reveal that the indoor globe temperature of the test...
Wearable computers need networking by using wireless ad hoc network in order to utilize them more effectively, routing protocol becomes an important research field for its significance in wireless ad hoc network. In Ad Hoc network, there are mainly two kinds of routing protocols: proactive routing protocol and on-demand routing protocol, to evaluate the performance of two kinds of protocols, we choose...
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