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The effects of organic acids on limestone dissolution rate were investigated by pH-stat method. The results showed that the concentration of organic acid, the acidity of limestone slurry and the kind of organic acid were the main factor to increase limestone dissolution rate. By increasing concentration of organic acid added, the granular limestone can be used as a desulfurizing reagent. Thus, the...
Since service science is becoming more mature, many universities have now set up numbers of related courses. Service Science and Engineering Department, has some concrete teaching practice at School of Software, Dalian University of Technology. Our paper, analyses specific scientific knowledge systems for the integration of services in industry-specific systems, shows the new discipline will move...
Community detection is always an outstanding problem in the study of networked systems such as social networks and computer networks. In this paper, a novel method based on particle swarm optimization is proposed to detect community structures by optimizing network modularity. At the beginning, an improved spectral method is used to transform community detection into a cluster problem and the weighted...
This study applies a developed Environment of ubiquitous learning with educational resources (EULER) and conducts a natural science learning to explore its educational affordances. The EULER helps teachers deliver lessons on site and cultivate student competency in adopting information technology to improve learning. To explore educational affordances, the proposed EULER is used for natural science...
This paper reports a study that aims to construct a handheld augmented reality supported ubiquitous learning system, called HELLO (Handheld English Language Learning Organization), to enhance students' English learning. The HELLO integrates the sensor, augmented reality, ubiquitous computing and information technologies, and consists of two subsystems: an English learning management system and learning...
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