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In increasingly popular participatory sensing systems, new challenges are arising to select the most appropriate participants when considering their hand-held smart device's different energy conditions, uncontrollable mobility pattern, and associated sensing capabilities to best satisfy the quality-of-information (QoI) requirements of sensing tasks. This paper proposes a QoI-aware energy-efficient...
This paper describes a file system based on the shared memory. It uses virtual memory[1] to store data, and the data is in step with it in the hard disk. User process reads or writes the file stored in Overtmpfs rather than in hard disk. So Overtmpfs improves the speed of processing files. Also User process does not worry about the file has been modified by the user process on the hard disk. Overtmpfs...
The impact of integrating 20% of renewable resources, primarily wind and solar, on regulation and load following requirements within the California Independent System Operator (CAISO)'s Balancing Authority Area is analyzed in detail. The analysis entails a stochastic process that employs Monte Carlo simulations and uses a random number generator to generate forecast errors over multiple iterations...
In this paper, a method to evaluate the power system vulnerability in terms of voltage magnitudes and transmission lines passing their limits is presented. Probabilistic technique is applied to obtain the distribution characteristics of the voltage magnitude and transmission line power flows. Cumulant-based expansion method is used to obtain the probabilistic distribution function (PDF) and cumulative...
In this paper, we present a novel method for image annotation and retrieval on mobile device by using contextual information. Image annotation is an effective way for content based image retrieval. However, manual annotation is an expensive and time consuming work, especially for mobile device. Here, we propose a semi-automatic way to give image annotation on mobile device. There are rich contexts...
A new concept of drying moisture uniformity which shows properties of mathematical statistics is defined for paddy drying in a deep fixed-bed based on analyzing the existing indexes. A series of paddy drying experiments including single-factor experiments, quadratic orthogonal rotary combination experiments and duplicate tests were conducted in a deep fixed-bed. Influence laws of each experiment factor...
Sensors are now attached to a lot of mobile objects such as animals and vehicles to collect data. This forms intermittently connected mobile sensor network due to weak communication power and nodal mobility, in which conventional routing protocols in wireless sensor network don't work. In this paper, we propose a data harvesting scheme for intermittently connected mobile sensor network. This approach...
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