teachers should improve their qualities,organize and control affirmative educational environment,and appraise students from different views,with proper affirmative evaluation techniques,for guiding them to .

The qualitative assessment of water environment quality in China;

The purpose of qualitative evaluation in human reliability analysis (HRA) is to conduct screening and analysis upon the tremendous human factor data, to limit the introduction of human factor events into HRA model and to make the pertinent HRA quantitative analysis feasible.

This paper discusses the necessity of evaluating the network information resources,introduces the present situation of the methods for evaluating the network information resources,and analyzes on the advantages and disadvantages of three evaluating methods such as qualitative evaluation,quantitative evaluation and comprehensive evaluation.

This paper presents a generator of backward cloud, which can transform quantitative values into qualitative concept, simultaneously, can produce qualitative evaluation denoted by precise number from objective data, embodying impersonality and precision.

At last,the qualitative appraisal is conducted on the slide s influence on the highway construction.

According to the scene investigation and a experiment to the outlet valley mud-rock flow,the authors give the qualitative appraisal and propose the corresponding defense measure.