The self-preservation of methane hydrate is a key process in its engineering applications because the hydrate can survive for a significant period under atmospheric pressure and moderate temperature. Some experiments ...The self-preservation of methane hydrate is a key process in its engineering applications because the hydrate can survive for a significant period under atmospheric pressure and moderate temperature. Some experiments have predicted that the shielding ice formed on the hydrate surface after initial dissociation of the hydrate plays an important role in the self-preservation effect. We propose ice-shielding models of gas hydrates to investigate the dissociation rates quantitatively, including the self-preservation process, at temperatures below the ice-melting point and at atmospheric pressure. Three general models are constructed for two temperature ranges The rate-determining process for the lower temperature range is hydrate dissociation, and those for the higher range are gas diffusion through ice or hydrate layers, which depend on the thickness of the shielding-ice layer. Our models suggest that the extent of self-preservation depends on temperature, original hydrate size, and guest substances, which can explain the experimental results.展开更多
To get more insight into using self-assessment in writing instruction, the present study intends to explore the effects of student self-assessment on students＇ EFL writing by adopting writing assignments, analytic sc...To get more insight into using self-assessment in writing instruction, the present study intends to explore the effects of student self-assessment on students＇ EFL writing by adopting writing assignments, analytic scoring rubric, questionnaires and interviews. It is found that students are able to make judgments about the overall quality of their writing in a manner consistent with those made by the teacher and students made significant improvements in content, organization, and mechanics of their writing after the practice of self-assessment while qualities concerning vocabulary and language use have been improved but not to a significant level. Moreover, the study demonstrates that the practice of self-assessment has exerted positive influence on students＇ perceptions of their writing skills in terms of organization, language use and mechanics while it does not result in any change of students＇ perceptions of their writing skills in content and vocabulary. These implications are conductive to working out a set of new models of the teaching of writing and helping further intensify the innovations of Chinese foreign language teaching.展开更多
With the rapid development of network, the phenomenon of Internet addiction is prevalent on campuses, which has produced a variety of negative effects on college students in terms of learning, living, working and so o...With the rapid development of network, the phenomenon of Internet addiction is prevalent on campuses, which has produced a variety of negative effects on college students in terms of learning, living, working and so on. In recent years, there are many research literatures on Internet addiction overseas, covering all aspects of this psychological phenomenon. Moreover, domestic research on Internet addiction started late. In the light of the fact that college students do not have clear understanding on hazards of Interact addiction, it generally shows their self- control is poor. They do not believe they can control their behavior and results and give up taking responsibility for the results and tend to agree network identity. Based on this phenomenon, we propose the network psychological source control concept. In view of the close contact between the excessive use of the network and the individual time management, this study selected the time dimension of personality characteristics on Internet addiction as another influencing factor, and explored the integrated influence of the psychological source control to Internet addiction.展开更多
The so-called emotional education is the education of cultivating students＇ social emotion, promoting their self-control ability and promoting students to correctly cope with the relationship between themselves and s...The so-called emotional education is the education of cultivating students＇ social emotion, promoting their self-control ability and promoting students to correctly cope with the relationship between themselves and surrounding environment. In college English teaching, implementing emotional education not only can teach knowledge to students, but also can help others to form perfect personality, to promote all-round development of students. However, fi＇om the present situation, in college English teaching, it generally exists ＂focusing more on knowledge and less on emotion＂ phenomenon, which doesn＇t conform to the requirement of quality education. In college English teaching, conducting emotional education is necessary and imminent.展开更多
Compared with Karl Polanyi’s first Great Transformation,the emergence of the even more influential financial capitalism can be called the second Great Transformation.The global expansion of financial capitalism has e...Compared with Karl Polanyi’s first Great Transformation,the emergence of the even more influential financial capitalism can be called the second Great Transformation.The global expansion of financial capitalism has extended its power beyond the remit of nation-states as governments,firms,families and individuals are increasingly guided and reshaped by financial markets,producing a trend toward the financialization of social life.An important social consequence is the ever more marked separation of financial markets from society,a separation that has gradually eroded the power of the state,trade unions and civil society and aggravated the employment crises,the polarization of rich and poor and the structural inequality of developed capitalist countries.In the face of society’s erosion by financial capital,the West has taken measures of social self-protection,but these have so far had little effect.To establish a new financial and market governance structure at the global level that will effectively cope with the negative impact of financial capitalism is a long and arduous task.展开更多
文摘The self-preservation of methane hydrate is a key process in its engineering applications because the hydrate can survive for a significant period under atmospheric pressure and moderate temperature. Some experiments have predicted that the shielding ice formed on the hydrate surface after initial dissociation of the hydrate plays an important role in the self-preservation effect. We propose ice-shielding models of gas hydrates to investigate the dissociation rates quantitatively, including the self-preservation process, at temperatures below the ice-melting point and at atmospheric pressure. Three general models are constructed for two temperature ranges The rate-determining process for the lower temperature range is hydrate dissociation, and those for the higher range are gas diffusion through ice or hydrate layers, which depend on the thickness of the shielding-ice layer. Our models suggest that the extent of self-preservation depends on temperature, original hydrate size, and guest substances, which can explain the experimental results.
文摘To get more insight into using self-assessment in writing instruction, the present study intends to explore the effects of student self-assessment on students＇ EFL writing by adopting writing assignments, analytic scoring rubric, questionnaires and interviews. It is found that students are able to make judgments about the overall quality of their writing in a manner consistent with those made by the teacher and students made significant improvements in content, organization, and mechanics of their writing after the practice of self-assessment while qualities concerning vocabulary and language use have been improved but not to a significant level. Moreover, the study demonstrates that the practice of self-assessment has exerted positive influence on students＇ perceptions of their writing skills in terms of organization, language use and mechanics while it does not result in any change of students＇ perceptions of their writing skills in content and vocabulary. These implications are conductive to working out a set of new models of the teaching of writing and helping further intensify the innovations of Chinese foreign language teaching.
文摘With the rapid development of network, the phenomenon of Internet addiction is prevalent on campuses, which has produced a variety of negative effects on college students in terms of learning, living, working and so on. In recent years, there are many research literatures on Internet addiction overseas, covering all aspects of this psychological phenomenon. Moreover, domestic research on Internet addiction started late. In the light of the fact that college students do not have clear understanding on hazards of Interact addiction, it generally shows their self- control is poor. They do not believe they can control their behavior and results and give up taking responsibility for the results and tend to agree network identity. Based on this phenomenon, we propose the network psychological source control concept. In view of the close contact between the excessive use of the network and the individual time management, this study selected the time dimension of personality characteristics on Internet addiction as another influencing factor, and explored the integrated influence of the psychological source control to Internet addiction.
文摘The so-called emotional education is the education of cultivating students＇ social emotion, promoting their self-control ability and promoting students to correctly cope with the relationship between themselves and surrounding environment. In college English teaching, implementing emotional education not only can teach knowledge to students, but also can help others to form perfect personality, to promote all-round development of students. However, fi＇om the present situation, in college English teaching, it generally exists ＂focusing more on knowledge and less on emotion＂ phenomenon, which doesn＇t conform to the requirement of quality education. In college English teaching, conducting emotional education is necessary and imminent.
基金This paper is a phased result of a National Social Science Fund of China project“Research on the Social Mechanism of Stable Development of China’s Stock Market”(16BSH075).
文摘Compared with Karl Polanyi’s first Great Transformation,the emergence of the even more influential financial capitalism can be called the second Great Transformation.The global expansion of financial capitalism has extended its power beyond the remit of nation-states as governments,firms,families and individuals are increasingly guided and reshaped by financial markets,producing a trend toward the financialization of social life.An important social consequence is the ever more marked separation of financial markets from society,a separation that has gradually eroded the power of the state,trade unions and civil society and aggravated the employment crises,the polarization of rich and poor and the structural inequality of developed capitalist countries.In the face of society’s erosion by financial capital,the West has taken measures of social self-protection,but these have so far had little effect.To establish a new financial and market governance structure at the global level that will effectively cope with the negative impact of financial capitalism is a long and arduous task.
