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This paper presents an algorithm of Ant Colony-Genetic to solve the optimization problem of oilfield water system. For the shortcomings of basic genetic algorithm, this paper has made a corresponding improvement to improve the global searching capability. Under the requirements of actual oil- field water injection system service, this algorithm is used to solve this optimization problem of oilfield...
Organizing wireless sensor networks into clusters enables the efficient utilization of the limited energy resources of the deployed sensor nodes. Oftentimes the network is organized into clusters of equal size, but such equal clustering results in an unequal load on the cluster head nodes. Instead, we propose an Unequal Clustering Method (UCM) for network organization, which can lead to more uniform...
One of the main problems facing routing protocol in wireless sensor networks is how to prolong the lifetime of the network, because the replacement of the embedded batteries is a very difficult process once these nodes have been deployed. In this paper, we propose a new centralized energy-efficient routing protocol called Sink-controlled Energy-efficient and Geographical Routing (SEGR), which concentrates...
Designing an energy efficient algorithm is one of the most important challenges in wireless sensor networks (WSNs). In this paper, we present a node sleeping algorithm based on the minimum hop routing protocol to minimize energy consumption. The proposed scheme divides all the nodes except the sink node into terminal nodes and intermediate nodes according to their different functions. Terminal nodes...
This paper analyzes the long-term equilibrium relationship between GDPI and TEC of China by using statistics data from 1953 to 2008. The research shows that there is one-way Granger-causality between the total energy consumption growth and industrial growth, the growth of the total energy consumption impacts on industrial economic growth, and it also shows that industrial economic growth benefits...
The energy consumption in mobile devices had gained more attention from infra-structure carriers and mobile manufacturers with the growth and expansion of third generation networks. The air interface resource allocation is the main factor of the energy consumption increase when the mobile is transmitting in background at anytime. When the air interface timeouts are reduced, there is a reduction in...
Life cycle assessment (LCA) as method, large-scale public buildings which areas are over 20,000 square meters each in Hangzhou of hot summer and cold winter region as objects, the paper studies on the features and rules of CO2 emission and energy consumption. With three typical cases being selected among office, health care and campus buildings, variation of carbon emission indexes are calculated...
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