Objective: As part of an investigation and analysis of the study weariness of nursing vocational college students, the authors attempted to reform the teaching mode of a Nursing Basic Technolo-gy course to solve the p...Objective: As part of an investigation and analysis of the study weariness of nursing vocational college students, the authors attempted to reform the teaching mode of a Nursing Basic Technolo-gy course to solve the problem of study weariness in vocational college students. Methods: The authors designed student questionnaires to investigate study weariness in 128 nurs-ing vocational college students. Results: Of the 128 students, 58 were tired of study, accounting for 45. 3%; 40 students often had weariness, accounting for 31. 3%; and 71 students had moderate or severe weariness, accounting for 55. 5%. Seventy-five students played on their mobile phone when they were tired of studying. Conclusions: The study weariness of vocational college students is a common phenomenon that has been developing rapidly. There are many factors that cause study weariness of professional college students. The students believe that the traditional teaching method is the main reason for study weariness. Reform of the teaching mode in a Nursing Basic Technology course effectively solved the learning problems of vocational college students. Teaching experiments for reform may have marked effects, and they are worthy of promoting.展开更多
The hydrogenation of CO to synthetic natural gas (SNG) needs a high molar ratio of H2/CO (usually large than 3.0 in industry), which consumes a large abundant of hydrogen. The reverse dry reforming reaction (RDR, 2H2 ...The hydrogenation of CO to synthetic natural gas (SNG) needs a high molar ratio of H2/CO (usually large than 3.0 in industry), which consumes a large abundant of hydrogen. The reverse dry reforming reaction (RDR, 2H2 + 2CO←→CH4 + CO2), combining CO methanation with water-gas-shift reaction, can significantly decrease the H2/CO molar ratio to 1 for SNG production. A detailed thermodynamic analysis of RDR reaction was carried out based on the Gibbs free energy minimization method. The effect of temperature, pressure. H2/CO ratio and the addition of H2O, CH4, CO2, O2 and C2H4 into the feed gas on CO conversion, CH4 and CO2 selectivity, as well as CH4 and carbon yield, are discussed. Experimental results obtained on homemade impregnated Ni/Al2O3 catalyst are compared with the calculations. The results demonstrate that low temperature (200-500 °C), high pressure (1-5 MPa) and high H2/CO ratio (at least 1) promote CO conversion and CH4 selectivity and decrease carbon yield. Steam and CO2 in the feed gas decrease the CH4 selectivity and carb on yield, and enhance the CO2 con tent. Extra CH4 elevates the CH4 content in the products, but leads to more carbon formation at high temperatures. O2 significantly decreases the CH4 selectivity and C2H4 results in the generation of carbon.展开更多
This paper is a case study based on the privatization of Guoguang Ceramics.It is found that,contrary to the thoughts of some scholars, corporation performance actually deteriorated,rather than improved under privatiza...This paper is a case study based on the privatization of Guoguang Ceramics.It is found that,contrary to the thoughts of some scholars, corporation performance actually deteriorated,rather than improved under privatization.We analyze ownership arrangements before and after privatization and find that private ownership arrangements still have deficiencies and are not necessarily better than state ownership arrangements.The existence of private benefits of control is the essential reason why performance had been deteriorating.Private benefits of control under state ownership come from the government’s multiple objectives of corporation control,whereas the benefits with private ownership lie on resources transferred from the corporation.Ta succeed in privatizing SOEs,it is essential that legal systems be strengthened to effectively oversee private benefits of control.展开更多
The production process of clean hydrogen by iso-octane steam reforming in a micro-reactor under atmospheric pressure,and the high temperature was investigated.The simulation is done using momentum conservation,mass co...The production process of clean hydrogen by iso-octane steam reforming in a micro-reactor under atmospheric pressure,and the high temperature was investigated.The simulation is done using momentum conservation,mass conservation,and convection-diffusion equations,represented by the Navier-Stocks equations,the continuity equation,and the Steffan-Maxwell equation respectively.The resolution was performed using a differential equations discretization into their conservative by the finite element method with an unconditionally stable scheme.An analysis of the hydrodynamics of the flow effect shows that the hydrogen produced by iso-octane reforming is proportional to the mixed flow Reynolds number.展开更多
International exchange is an important part of China’s educational opening up,cooperation,and connection with other countries.It also serves as a unique strategic resource,helping to develop and consolidate mutual po...International exchange is an important part of China’s educational opening up,cooperation,and connection with other countries.It also serves as a unique strategic resource,helping to develop and consolidate mutual political trust,diplomatic exchange,economic and trade relations,cultural exchange and educational cooperation between China and other countries in the world,thereby enhancing China’s international image.We have seen positive contributions made to our progress towards peace among peoples,and noted the irreplaceable role played by China.International educational exchange is an important part of global international student flows.Since the founding of the People’s Republic of China,especially in the 40 years of reform and opening up,China has experienced a development process in education from language students to students at all levels and from quantity to quality.The change in the type of international students studying in China and of Chinese students studying abroad reflects the Chinese spirit and the broadening the appeal of China’s programs.It can be interpreted as the fulfillment of the“Chinese Dream,”contributing to national revitalization.The trade imbalance between exporting countries and destination countries in international educational exchange has been reduced.展开更多
Increasingly, Chinese history is becoming a more significant component of academic international history. This is particularly true in light of the Chinese economic reform, whereby historical narrative has been able t...Increasingly, Chinese history is becoming a more significant component of academic international history. This is particularly true in light of the Chinese economic reform, whereby historical narrative has been able to go beyond more traditional standards of periodization, allowing, for example, Ming and Qing-era historical research to grow and develop qualitatively as well as quantitatively. In this sense, the field has greatly benefitted from the ＂ideological liberation＂ which followed in wake of the reform. However in a broader sense, this development is also closely related with academic exchange. Communications among domestic and international scholars of Ming and Qing history, as well as of international history, has normalized in the years following the reforms. This has not only led to a considerable influx of ＂overseas＂ historical research to China＇s mainland, but has also allowed for a larger-scale access to and citation of Chinese historical research by these overseas scholars. Domestic and international scholars have, from this, established much closer academic relations with one another. This tremendous progress made within the field Ming and Qing-era historical research during the past forty years was established upon the foundation of Chinese scholars＇ assiduous efforts as well as their increasingly frequent exchanges with international scholars and academics.展开更多
基金supported by a Youth Project in teaching reform project of Hunan province in 2012(No.ZJC2012004)
文摘Objective: As part of an investigation and analysis of the study weariness of nursing vocational college students, the authors attempted to reform the teaching mode of a Nursing Basic Technolo-gy course to solve the problem of study weariness in vocational college students. Methods: The authors designed student questionnaires to investigate study weariness in 128 nurs-ing vocational college students. Results: Of the 128 students, 58 were tired of study, accounting for 45. 3%; 40 students often had weariness, accounting for 31. 3%; and 71 students had moderate or severe weariness, accounting for 55. 5%. Seventy-five students played on their mobile phone when they were tired of studying. Conclusions: The study weariness of vocational college students is a common phenomenon that has been developing rapidly. There are many factors that cause study weariness of professional college students. The students believe that the traditional teaching method is the main reason for study weariness. Reform of the teaching mode in a Nursing Basic Technology course effectively solved the learning problems of vocational college students. Teaching experiments for reform may have marked effects, and they are worthy of promoting.
文摘The hydrogenation of CO to synthetic natural gas (SNG) needs a high molar ratio of H2/CO (usually large than 3.0 in industry), which consumes a large abundant of hydrogen. The reverse dry reforming reaction (RDR, 2H2 + 2CO←→CH4 + CO2), combining CO methanation with water-gas-shift reaction, can significantly decrease the H2/CO molar ratio to 1 for SNG production. A detailed thermodynamic analysis of RDR reaction was carried out based on the Gibbs free energy minimization method. The effect of temperature, pressure. H2/CO ratio and the addition of H2O, CH4, CO2, O2 and C2H4 into the feed gas on CO conversion, CH4 and CO2 selectivity, as well as CH4 and carbon yield, are discussed. Experimental results obtained on homemade impregnated Ni/Al2O3 catalyst are compared with the calculations. The results demonstrate that low temperature (200-500 °C), high pressure (1-5 MPa) and high H2/CO ratio (at least 1) promote CO conversion and CH4 selectivity and decrease carbon yield. Steam and CO2 in the feed gas decrease the CH4 selectivity and carb on yield, and enhance the CO2 con tent. Extra CH4 elevates the CH4 content in the products, but leads to more carbon formation at high temperatures. O2 significantly decreases the CH4 selectivity and C2H4 results in the generation of carbon.
文摘This paper is a case study based on the privatization of Guoguang Ceramics.It is found that,contrary to the thoughts of some scholars, corporation performance actually deteriorated,rather than improved under privatization.We analyze ownership arrangements before and after privatization and find that private ownership arrangements still have deficiencies and are not necessarily better than state ownership arrangements.The existence of private benefits of control is the essential reason why performance had been deteriorating.Private benefits of control under state ownership come from the government’s multiple objectives of corporation control,whereas the benefits with private ownership lie on resources transferred from the corporation.Ta succeed in privatizing SOEs,it is essential that legal systems be strengthened to effectively oversee private benefits of control.
文摘The production process of clean hydrogen by iso-octane steam reforming in a micro-reactor under atmospheric pressure,and the high temperature was investigated.The simulation is done using momentum conservation,mass conservation,and convection-diffusion equations,represented by the Navier-Stocks equations,the continuity equation,and the Steffan-Maxwell equation respectively.The resolution was performed using a differential equations discretization into their conservative by the finite element method with an unconditionally stable scheme.An analysis of the hydrodynamics of the flow effect shows that the hydrogen produced by iso-octane reforming is proportional to the mixed flow Reynolds number.
文摘International exchange is an important part of China’s educational opening up,cooperation,and connection with other countries.It also serves as a unique strategic resource,helping to develop and consolidate mutual political trust,diplomatic exchange,economic and trade relations,cultural exchange and educational cooperation between China and other countries in the world,thereby enhancing China’s international image.We have seen positive contributions made to our progress towards peace among peoples,and noted the irreplaceable role played by China.International educational exchange is an important part of global international student flows.Since the founding of the People’s Republic of China,especially in the 40 years of reform and opening up,China has experienced a development process in education from language students to students at all levels and from quantity to quality.The change in the type of international students studying in China and of Chinese students studying abroad reflects the Chinese spirit and the broadening the appeal of China’s programs.It can be interpreted as the fulfillment of the“Chinese Dream,”contributing to national revitalization.The trade imbalance between exporting countries and destination countries in international educational exchange has been reduced.
文摘Increasingly, Chinese history is becoming a more significant component of academic international history. This is particularly true in light of the Chinese economic reform, whereby historical narrative has been able to go beyond more traditional standards of periodization, allowing, for example, Ming and Qing-era historical research to grow and develop qualitatively as well as quantitatively. In this sense, the field has greatly benefitted from the ＂ideological liberation＂ which followed in wake of the reform. However in a broader sense, this development is also closely related with academic exchange. Communications among domestic and international scholars of Ming and Qing history, as well as of international history, has normalized in the years following the reforms. This has not only led to a considerable influx of ＂overseas＂ historical research to China＇s mainland, but has also allowed for a larger-scale access to and citation of Chinese historical research by these overseas scholars. Domestic and international scholars have, from this, established much closer academic relations with one another. This tremendous progress made within the field Ming and Qing-era historical research during the past forty years was established upon the foundation of Chinese scholars＇ assiduous efforts as well as their increasingly frequent exchanges with international scholars and academics.
