In this paper, the author discusses implications of original reportage texts in EFL teaching and learning from the perspectives of socio-linguistics and pragmatic competence. The author also discusses a proper approac...In this paper, the author discusses implications of original reportage texts in EFL teaching and learning from the perspectives of socio-linguistics and pragmatic competence. The author also discusses a proper approach for teaching medical postgraduate students, which is centered on students and based on research. This approach for teaching and leaning has been proved effective and students have improved in their socio-linguistic and pragmatic competences. This approach should have implications to EFL teachers who teach students of other specialties.展开更多
The iron-loaded organic phase of naphthenic acid-isooctyl alcohol-kerosene was prepared, and the process kinetics of hydrothermal stripping of iron from the phase was studied. Several factors affecting hydrothermal st...The iron-loaded organic phase of naphthenic acid-isooctyl alcohol-kerosene was prepared, and the process kinetics of hydrothermal stripping of iron from the phase was studied. Several factors affecting hydrothermal stripping, such as the polymer of naphthenic acid, initial concentrations of iron and naphthenic acid, temperature and agitation time, were investigated, and based on experimental results and theoretical analysis, two kinetic models were established.The stripping rate equation suggests that the hydrothermal stripping process activation energy is 96.4 kJ·mol-1 and the stripping is controlled by hydrolysis of naphthenic complex of iron. The values calculated by the stripping fraction equation comparatively accord with the experimental data.展开更多
The influence of impurity content on the microstructure and mechanical properties of ZK60 magnesium alloys was investigated by optical microscopy,scanning electron microscopy and tensile test.ZK60 alloys were prepared...The influence of impurity content on the microstructure and mechanical properties of ZK60 magnesium alloys was investigated by optical microscopy,scanning electron microscopy and tensile test.ZK60 alloys were prepared by changing holding time of alloy melt during semi-continuous casting in order to control the content of impurity elements.The alloy with lower purity content is found to have less second precipitates and larger grain size in the as-cast state.However,in the as-extruded state,reducing impurities brings about a decrease in grain size and an increase in yield strength from 244 MPa to 268 MPa,while the elongations in the as-extruded alloys with different contents of impurities are almost the same.After T5 treatment,impurity content is found to have more obvious effect on the yield strength of ZK60 alloy.The yield strength of ZK60-45 alloys with low impurity content is increased up to 295 MPa after T5 treatment.展开更多
In 1778, Abbe Guinot, a priest native of Lorraine and professor in the seminary of Toul, published in Nancy the two volumes of his philosophical lectures, whose subtitle is ＂On Logic.＂ This concerns a general philos...In 1778, Abbe Guinot, a priest native of Lorraine and professor in the seminary of Toul, published in Nancy the two volumes of his philosophical lectures, whose subtitle is ＂On Logic.＂ This concerns a general philosophy of knowledge and a critic of philosophical systems. Guinot is interested in science and natural discoveries. He describes the organization of institutional science and appreciates the progress of sciences but he makes a distinction between scientific progress and philosophers＇ sophisms that he criticizes. In order to favor science and avoid philosophical errors, logic is essential in students＇ training. According to Guinot, logic allows us to extend our intellectual abilities, upliR our ideas, help our thought processes, and mature our reflection. However, this logic refers to the great book of nature written in mathematical language. Guinot thinks that scientific experiment is of the highest importance for accuracy of mind. This logic lecture is inspired by Aristotle but above all by Port-Royal Logic. It gives a place to Locke empiricism and it favors development of sciences. Abbe Guinot was a chaplain in the cathedral of Nancy; he emigrated in 1791. He came back in France during the Consulate and he died a few time later.展开更多
In this paper, the author presents an overview of the history and trends of the Research Methods in Second Language Acquisition in recent years; and then, combining the present situation in China, indicates that the a...In this paper, the author presents an overview of the history and trends of the Research Methods in Second Language Acquisition in recent years; and then, combining the present situation in China, indicates that the approach of Action Research will be the future trend in research on Computer Assisted Second Language Acquisition （CASLA）. To explain the author＇s viewpoint, this paper firstly sets out to describe the author＇s understanding of the Research Methods in Second Language Acquisition （SLA）, and then the comprehension of Action Research in CASLA.展开更多
The fundamental research and industry, trials of the third generation automobile steel QP980 were introduced in this paper, including chemical ingredient, mechanical properties, microstructure, forming limit and basic...The fundamental research and industry, trials of the third generation automobile steel QP980 were introduced in this paper, including chemical ingredient, mechanical properties, microstructure, forming limit and basic perform- ance parameters. The application of QP steel of the B-pillar was researched, and the QP980, DP600 and hot forming steel were compared in the aspect of formability, safety and cost. The resuhs showed that the QP980 replacing DP600 steel single piece carl reduce the weight by 2.4 kg. The security and performance is basically the same as that of hot forming steel using 22MnB5, and the cost is reduced by 30 %.展开更多
Currently for the steel tube reinforced concrete composite pile research, although predecessors make a comprehensive research on the composite pile beating performance, design technology, but there are still many prob...Currently for the steel tube reinforced concrete composite pile research, although predecessors make a comprehensive research on the composite pile beating performance, design technology, but there are still many problems have not been solved, such as the steel tube reinforced concrete pile composite interracial force learn performance research is still in the initial stage. In this paper, we mainly discuss the research methods of several interface mechanical properties and propose the possibility of studying the mechanical properties of the steel tube reinforced concrete composite pile by using the principle of ultrasonic speckle.展开更多
Practical teaching is an important way to improve the capability of NCO students, trader the environment of combating, in order to improve the combat effectiveness of close to the war as the fundamental task of the te...Practical teaching is an important way to improve the capability of NCO students, trader the environment of combating, in order to improve the combat effectiveness of close to the war as the fundamental task of the teaching activities. Carry out the practical teaching is the objective requirement of cultivating high quality personnel, scientific and promote practical teaching is the embodiment of practicing the goal of a strong army NCO academies. In the face of the new situation and mission, how to carry out combat Sergeant college teaching, enhance the practical teaching level, training with the ability to win the qualified personnel in the future battlefield, becomes suspends in front of us to explore and solve the problem.展开更多
This paper reviews the development of current research in bulk glassy alloys by focusing on the trigger point for the synthesis of the first bulk glassy alloys by the conventional mold casting method. This review cove...This paper reviews the development of current research in bulk glassy alloys by focusing on the trigger point for the synthesis of the first bulk glassy alloys by the conventional mold casting method. This review covers the background, discovery, characteristics, and applications of bulk glassy alloys, as well as recent topics regarding them. Applications of bulk glassy alloys have been expanding, particularly for Fe-based bulk glassy alloys, due to their unique properties, high glass-forming ability, and low cost. In the near future, the engineering importance of bulk glassy alloys is expected to increase steadily, and continuous interest in these novel metallic materials for basic science research is anticipated.展开更多
文摘In this paper, the author discusses implications of original reportage texts in EFL teaching and learning from the perspectives of socio-linguistics and pragmatic competence. The author also discusses a proper approach for teaching medical postgraduate students, which is centered on students and based on research. This approach for teaching and leaning has been proved effective and students have improved in their socio-linguistic and pragmatic competences. This approach should have implications to EFL teachers who teach students of other specialties.
基金Supported by National Natural Science Foundation of China (No.20276074)
文摘The iron-loaded organic phase of naphthenic acid-isooctyl alcohol-kerosene was prepared, and the process kinetics of hydrothermal stripping of iron from the phase was studied. Several factors affecting hydrothermal stripping, such as the polymer of naphthenic acid, initial concentrations of iron and naphthenic acid, temperature and agitation time, were investigated, and based on experimental results and theoretical analysis, two kinetic models were established.The stripping rate equation suggests that the hydrothermal stripping process activation energy is 96.4 kJ·mol-1 and the stripping is controlled by hydrolysis of naphthenic complex of iron. The values calculated by the stripping fraction equation comparatively accord with the experimental data.
基金Project(50725413)supported by the National Natural Science Foundation of ChinaProject(2007CB613704)supported by the National Basic Research Program of ChinaProject(20090191120013)supported by the PhD Program Foundation of Ministry of Education of China
文摘The influence of impurity content on the microstructure and mechanical properties of ZK60 magnesium alloys was investigated by optical microscopy,scanning electron microscopy and tensile test.ZK60 alloys were prepared by changing holding time of alloy melt during semi-continuous casting in order to control the content of impurity elements.The alloy with lower purity content is found to have less second precipitates and larger grain size in the as-cast state.However,in the as-extruded state,reducing impurities brings about a decrease in grain size and an increase in yield strength from 244 MPa to 268 MPa,while the elongations in the as-extruded alloys with different contents of impurities are almost the same.After T5 treatment,impurity content is found to have more obvious effect on the yield strength of ZK60 alloy.The yield strength of ZK60-45 alloys with low impurity content is increased up to 295 MPa after T5 treatment.
文摘In 1778, Abbe Guinot, a priest native of Lorraine and professor in the seminary of Toul, published in Nancy the two volumes of his philosophical lectures, whose subtitle is ＂On Logic.＂ This concerns a general philosophy of knowledge and a critic of philosophical systems. Guinot is interested in science and natural discoveries. He describes the organization of institutional science and appreciates the progress of sciences but he makes a distinction between scientific progress and philosophers＇ sophisms that he criticizes. In order to favor science and avoid philosophical errors, logic is essential in students＇ training. According to Guinot, logic allows us to extend our intellectual abilities, upliR our ideas, help our thought processes, and mature our reflection. However, this logic refers to the great book of nature written in mathematical language. Guinot thinks that scientific experiment is of the highest importance for accuracy of mind. This logic lecture is inspired by Aristotle but above all by Port-Royal Logic. It gives a place to Locke empiricism and it favors development of sciences. Abbe Guinot was a chaplain in the cathedral of Nancy; he emigrated in 1791. He came back in France during the Consulate and he died a few time later.
文摘In this paper, the author presents an overview of the history and trends of the Research Methods in Second Language Acquisition in recent years; and then, combining the present situation in China, indicates that the approach of Action Research will be the future trend in research on Computer Assisted Second Language Acquisition （CASLA）. To explain the author＇s viewpoint, this paper firstly sets out to describe the author＇s understanding of the Research Methods in Second Language Acquisition （SLA）, and then the comprehension of Action Research in CASLA.
文摘The fundamental research and industry, trials of the third generation automobile steel QP980 were introduced in this paper, including chemical ingredient, mechanical properties, microstructure, forming limit and basic perform- ance parameters. The application of QP steel of the B-pillar was researched, and the QP980, DP600 and hot forming steel were compared in the aspect of formability, safety and cost. The resuhs showed that the QP980 replacing DP600 steel single piece carl reduce the weight by 2.4 kg. The security and performance is basically the same as that of hot forming steel using 22MnB5, and the cost is reduced by 30 %.
文摘Currently for the steel tube reinforced concrete composite pile research, although predecessors make a comprehensive research on the composite pile beating performance, design technology, but there are still many problems have not been solved, such as the steel tube reinforced concrete pile composite interracial force learn performance research is still in the initial stage. In this paper, we mainly discuss the research methods of several interface mechanical properties and propose the possibility of studying the mechanical properties of the steel tube reinforced concrete composite pile by using the principle of ultrasonic speckle.
文摘Practical teaching is an important way to improve the capability of NCO students, trader the environment of combating, in order to improve the combat effectiveness of close to the war as the fundamental task of the teaching activities. Carry out the practical teaching is the objective requirement of cultivating high quality personnel, scientific and promote practical teaching is the embodiment of practicing the goal of a strong army NCO academies. In the face of the new situation and mission, how to carry out combat Sergeant college teaching, enhance the practical teaching level, training with the ability to win the qualified personnel in the future battlefield, becomes suspends in front of us to explore and solve the problem.
基金supported by Guangdong Innovative Research Team Program (2009010005)
文摘This paper reviews the development of current research in bulk glassy alloys by focusing on the trigger point for the synthesis of the first bulk glassy alloys by the conventional mold casting method. This review covers the background, discovery, characteristics, and applications of bulk glassy alloys, as well as recent topics regarding them. Applications of bulk glassy alloys have been expanding, particularly for Fe-based bulk glassy alloys, due to their unique properties, high glass-forming ability, and low cost. In the near future, the engineering importance of bulk glassy alloys is expected to increase steadily, and continuous interest in these novel metallic materials for basic science research is anticipated.
