This study aims at determining the optimal CO2 separation technology for Chinese refineries, based on current available technologies, by the method of comprehensive evaluation. Firstly, according to the characteristic...This study aims at determining the optimal CO2 separation technology for Chinese refineries, based on current available technologies, by the method of comprehensive evaluation. Firstly, according to the characteristics of flue gas from Chinese refineries, three feasible CO2 separation technologies are selected. These are pressure swing adsorption （PSA）, chemical absorption （CA）, and membrane absorption （MA）. Secondly, an economic assessment of these three techniques is carried out in accordance with cash flow analysis. The results show that these three techniques all have economic feasibility and the PSA technique is the best. Finally, to further optimize the three techniques, a two-level fuzzy comprehensive evaluation model is established, including economic, technological, and environmental factors. Considering all the factors, PSA is optimal for Chinese refineries, followed by CA and MA. Therefore, to reduce Chinese refineries carbon emission, it is suggested that CO2 should be captured from off-gases using PSA.展开更多
This paper investigates the related factors of Chinese learning engagement and performance of 377 students from three universities in Guangzhou of China,employs the value engineering method,and calculates the value co...This paper investigates the related factors of Chinese learning engagement and performance of 377 students from three universities in Guangzhou of China,employs the value engineering method,and calculates the value coefficient of learning efficiency.From the value coefficient of Chinese language learning,it proves that over 60%of international students studying in China have a higher efficiency in learning Chinese.展开更多
This paper introduces the Value Engineering method to calculate the value coefficient of Chinese learning efficiency for 377 international students by dimension.Results suggest that attention should be paid to male,Eu...This paper introduces the Value Engineering method to calculate the value coefficient of Chinese learning efficiency for 377 international students by dimension.Results suggest that attention should be paid to male,European and American,rural,introverted,and“work or education needs”international students;Give full play to the driving role of the reference-type,explore the space for improving the learning efficiency of the improvement-type and attention-type,and pay attention to the problems of problem-type international students.展开更多
Background:Physical education(PE)is a key channel that impacts children's decisions and behaviors for healthful living.This study evaluated the effects of a concept-based PE(CBPE)instructional unit,featured by ene...Background:Physical education(PE)is a key channel that impacts children's decisions and behaviors for healthful living.This study evaluated the effects of a concept-based PE(CBPE)instructional unit,featured by energy balance(EB)education,on students'knowledge learning,situational interest,cognitive,and physical engagements as well as teachers'perceptions.Methods:Fourth and 5th grade students(n=468)in a mid-western state of the United States were recruited as the participants.Four elementary schools were randomized to the CBPE or control groups.Students'EB knowledge,situational interest,cognitive engagement,and physical engagement were measured by a knowledge test,the Situational Interest Scale—Elementary,written task sheets,and accelerometers,respectively,while teachers'perceptions of the CBPE unit were captured by individual interviews at the end of the experiment.Results:The CBPE group showed a significant increase in EB knowledge,while the control did not.Both groups showed a similar increasing trend for situational interest over time,although the statistical results favored the control group.For physical engagement,the CBPE group demonstrated a statistically different but substantively similar level of in-class physical activity compared to the control group.The CBPE group also showed a moderate level of cognitive engagement throughout the unit.The PE teachers reported overall positive perceptions about teaching the CBPE unit.Conclusion:These results support the utility of the CBPE unit in enhancing EB education along with facilitating positive student interest and engagement as well as positive teaching experiences.展开更多
Background: Patient engagement offers a promising pathway toward improved population health, better-quality care, and greater cost efficiency. The objective of the current study is to identify and analyze the characte...Background: Patient engagement offers a promising pathway toward improved population health, better-quality care, and greater cost efficiency. The objective of the current study is to identify and analyze the characteristics of the 50 most frequently cited articles in patient engagement journals. Methods: The ISI Journal Citation Reports: Science Edition 2014 database was used to determine the most frequently cited published articles in Dec 2016. The most cited 50 articles were selected and assessed according to the published journal, origin of institutions, publication year, impact factor, topic, and type of study. Results: The 50 selected articles were published in 19 journals, the majority of which originated from the UK. The most common study design was quantitative study and reviews. The improvement of health care services quality and the construction of engagement model were the top two topics. And 2013 is the most published year receiving the most citations. Conclusions: Our findings provide a historical perspective on the scientific progress of patient engagement and allow for recognition of important developments and limitations in this field.展开更多
This paper demonstrates students’perspective of peer feedback on writing.The researcher based on the relevant litera⁃ture to find that peer feedback has a great effect on learning engagement,evaluation skill,and peer...This paper demonstrates students’perspective of peer feedback on writing.The researcher based on the relevant litera⁃ture to find that peer feedback has a great effect on learning engagement,evaluation skill,and peer interaction.However,there are still some doubts from teacher and student.Therefore,the researcher further reexamines this issue by conducting a pre-test,posttest with 36 students in Hong Kong,supplemented by interview data.The research findings suggest that numerous students notice the effectiveness of peer feedback whereas they are not familiar with the assessment process and technique.In this paper,the re⁃searcher will explore secondary students’perspective of peer feedback,and evaluate to what extent peer feedback can enhance their writing.Besides,there are some strategies for how to carry out peer feedback in writing class.展开更多
基金the China University of Petroleum Foundationthe Research Institute of Safety and Environment TechnologyChina National Petroleum Corporation
文摘This study aims at determining the optimal CO2 separation technology for Chinese refineries, based on current available technologies, by the method of comprehensive evaluation. Firstly, according to the characteristics of flue gas from Chinese refineries, three feasible CO2 separation technologies are selected. These are pressure swing adsorption （PSA）, chemical absorption （CA）, and membrane absorption （MA）. Secondly, an economic assessment of these three techniques is carried out in accordance with cash flow analysis. The results show that these three techniques all have economic feasibility and the PSA technique is the best. Finally, to further optimize the three techniques, a two-level fuzzy comprehensive evaluation model is established, including economic, technological, and environmental factors. Considering all the factors, PSA is optimal for Chinese refineries, followed by CA and MA. Therefore, to reduce Chinese refineries carbon emission, it is suggested that CO2 should be captured from off-gases using PSA.
基金this paper is funded by Project:2024 Youth Project of Philosophy and Social Sciences Planning in Guangdong Province“Research on the Relationship between Mandarin and Economic Development in Cantonese Speaking Areas (GD24YZY03)”.
文摘This paper investigates the related factors of Chinese learning engagement and performance of 377 students from three universities in Guangzhou of China,employs the value engineering method,and calculates the value coefficient of learning efficiency.From the value coefficient of Chinese language learning,it proves that over 60%of international students studying in China have a higher efficiency in learning Chinese.
基金funded by Project:2024 Youth Project of Philosophy and Social Sciences Planning in Guangdong Province“Research on the Relationship between Mandarin and Economic Development in Cantonese Speaking Areas(GD24YZY03)”.
文摘This paper introduces the Value Engineering method to calculate the value coefficient of Chinese learning efficiency for 377 international students by dimension.Results suggest that attention should be paid to male,European and American,rural,introverted,and“work or education needs”international students;Give full play to the driving role of the reference-type,explore the space for improving the learning efficiency of the improvement-type and attention-type,and pay attention to the problems of problem-type international students.
文摘Background:Physical education(PE)is a key channel that impacts children's decisions and behaviors for healthful living.This study evaluated the effects of a concept-based PE(CBPE)instructional unit,featured by energy balance(EB)education,on students'knowledge learning,situational interest,cognitive,and physical engagements as well as teachers'perceptions.Methods:Fourth and 5th grade students(n=468)in a mid-western state of the United States were recruited as the participants.Four elementary schools were randomized to the CBPE or control groups.Students'EB knowledge,situational interest,cognitive engagement,and physical engagement were measured by a knowledge test,the Situational Interest Scale—Elementary,written task sheets,and accelerometers,respectively,while teachers'perceptions of the CBPE unit were captured by individual interviews at the end of the experiment.Results:The CBPE group showed a significant increase in EB knowledge,while the control did not.Both groups showed a similar increasing trend for situational interest over time,although the statistical results favored the control group.For physical engagement,the CBPE group demonstrated a statistically different but substantively similar level of in-class physical activity compared to the control group.The CBPE group also showed a moderate level of cognitive engagement throughout the unit.The PE teachers reported overall positive perceptions about teaching the CBPE unit.Conclusion:These results support the utility of the CBPE unit in enhancing EB education along with facilitating positive student interest and engagement as well as positive teaching experiences.
文摘Background: Patient engagement offers a promising pathway toward improved population health, better-quality care, and greater cost efficiency. The objective of the current study is to identify and analyze the characteristics of the 50 most frequently cited articles in patient engagement journals. Methods: The ISI Journal Citation Reports: Science Edition 2014 database was used to determine the most frequently cited published articles in Dec 2016. The most cited 50 articles were selected and assessed according to the published journal, origin of institutions, publication year, impact factor, topic, and type of study. Results: The 50 selected articles were published in 19 journals, the majority of which originated from the UK. The most common study design was quantitative study and reviews. The improvement of health care services quality and the construction of engagement model were the top two topics. And 2013 is the most published year receiving the most citations. Conclusions: Our findings provide a historical perspective on the scientific progress of patient engagement and allow for recognition of important developments and limitations in this field.
文摘This paper demonstrates students’perspective of peer feedback on writing.The researcher based on the relevant litera⁃ture to find that peer feedback has a great effect on learning engagement,evaluation skill,and peer interaction.However,there are still some doubts from teacher and student.Therefore,the researcher further reexamines this issue by conducting a pre-test,posttest with 36 students in Hong Kong,supplemented by interview data.The research findings suggest that numerous students notice the effectiveness of peer feedback whereas they are not familiar with the assessment process and technique.In this paper,the re⁃searcher will explore secondary students’perspective of peer feedback,and evaluate to what extent peer feedback can enhance their writing.Besides,there are some strategies for how to carry out peer feedback in writing class.
