For functional difference equations with unbounded delay,we characterized the existence of totally stable and asymptotically almost periodic solution by using stability properties of a bounded solution in a certain li...For functional difference equations with unbounded delay,we characterized the existence of totally stable and asymptotically almost periodic solution by using stability properties of a bounded solution in a certain limiting equation.展开更多
Evaluation index system of agricultural sustainable development is constructed with the four components of social index,agricultural economic index,resources index,and environment index.According to the comprehensive ...Evaluation index system of agricultural sustainable development is constructed with the four components of social index,agricultural economic index,resources index,and environment index.According to the comprehensive evaluation model of agricultural sustainable development with the participation of single person,comprehensive evaluation model of agricultural sustainable development with the smallest generalized deviation and the participation of many people is established.Based on the case studies,agricultural sustainable development status of a certain region is evaluated.Result shows that the evaluation scores of the social index and agricultural economic index are high in this region,but the score of resources index is general and the evaluation result of environment index is not very good.The comprehensive evaluation value of overall sustainable development is 0.6655;and the evaluation result is"good".展开更多
The present study was carried out to analyze the effect of language self-efficacy and listening strategy on academic achievements in Chinese Qinghai-Tibet Plateau EFL learners.To achieve this goal,eighty-seven univers...The present study was carried out to analyze the effect of language self-efficacy and listening strategy on academic achievements in Chinese Qinghai-Tibet Plateau EFL learners.To achieve this goal,eighty-seven university students participated in the study and filled in language self-efficacy and listening strategy questionnaire.The result revealed that learners’language self-efficacy,listening strategy are positively correlated with academic achievements.Comparing the two factors influencing language learning,self-efficacy has higher prediction than listening strategies to academic achievements.Inner correlation exists in language self-efficacy and listening strategies.No gender exists.The study shed more light on the influence of self-efficacy and listening strategy on students’performance.展开更多
文摘For functional difference equations with unbounded delay,we characterized the existence of totally stable and asymptotically almost periodic solution by using stability properties of a bounded solution in a certain limiting equation.
文摘Evaluation index system of agricultural sustainable development is constructed with the four components of social index,agricultural economic index,resources index,and environment index.According to the comprehensive evaluation model of agricultural sustainable development with the participation of single person,comprehensive evaluation model of agricultural sustainable development with the smallest generalized deviation and the participation of many people is established.Based on the case studies,agricultural sustainable development status of a certain region is evaluated.Result shows that the evaluation scores of the social index and agricultural economic index are high in this region,but the score of resources index is general and the evaluation result of environment index is not very good.The comprehensive evaluation value of overall sustainable development is 0.6655;and the evaluation result is"good".
文摘The present study was carried out to analyze the effect of language self-efficacy and listening strategy on academic achievements in Chinese Qinghai-Tibet Plateau EFL learners.To achieve this goal,eighty-seven university students participated in the study and filled in language self-efficacy and listening strategy questionnaire.The result revealed that learners’language self-efficacy,listening strategy are positively correlated with academic achievements.Comparing the two factors influencing language learning,self-efficacy has higher prediction than listening strategies to academic achievements.Inner correlation exists in language self-efficacy and listening strategies.No gender exists.The study shed more light on the influence of self-efficacy and listening strategy on students’performance.
