Purpose Question answering (QA) answers the questions asked by people in the form of natural language. In the QA, due to the subjectivity of users, the questions they query have different expressions, which increases the difficulty of text retrieval. Therefore, the purpose of this paper is to...

This paper deals with the development of sizeable desalination units incorporated with thermal power plants in North-China. We use an exergy-based criterion EECR for the evaluation of thermal performance. Economic aspects are also considered.