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 binding mode and configuration of cisplatin with F-actin were studied on the basis of charge transfer bands of cisplatin-F-actin complex The binding mode was discussed on the basis of the results of LMCT.Raman and...The binding mode and configuration of cisplatin with F-actin were studied on the basis of charge transfer bands of cisplatin-F-actin complex The binding mode was discussed on the basis of the results of LMCT.Raman and fluorescence spectra.展开更多
Nowadays harmful gas in vehicle exhaust has pollute d air heavily. To prevent the environment from polluting, the request of emissions control legislation becomes more stringent. New legislation prescribes not only th...Nowadays harmful gas in vehicle exhaust has pollute d air heavily. To prevent the environment from polluting, the request of emissions control legislation becomes more stringent. New legislation prescribes not only the emissions limitation of vehicles, but also testing instruments and methods. Test car must be operated on the chassis dynamometer and data must be collect ed and analyzed with prescriptive exhaust analysis system as well. The mass of harmful exhaust gas, containing the concentration and volume of emis sion, which is independent from the model of automobile and engine, can be used as a criterion to evaluate the pollution of an automobile. Constant Volume Sampl e System (CVS) is used to measure vehicle emissions, but it is too expensive to apply extensively. The Vehicle Mass Analysis System(Vmas), a new vehicle exhaust mass analysis system produced in USA late 1990s,is used to test and analyze veh icle exhaust. As a test instrument, it has the virtue of cheapness and easy mana geability. In this paper, Vmas is used to measure the emissions of a light truck CA1020F. A ccording to 15 running modes of Vehicle Exhaust Legislation, the test car is ope rated on the chassis dynamometer and data are collected and analyzed with Vmas. The test results show that it is viable to measure and evaluate automobile emiss ion with Vmas. Most of HC exhaust is produced when the car is decelerating. The major factor that influences the mass of HC emission is the sudden decrease of e ngine load causing incomplete combustion in decelerating mode. Test results indi cate CO and NOx are mainly produced in the process of increasing load. The forme r reason is incomplete combustion and the latter is high burning temperature cau sed by the increasing load. The methods of reducing automobile emission are also discussed in this paper.展开更多
The people as a whole cannot live for one day without drug, and the requirement of drugs would never come to an end or stay on the same level. Pharmaceutical industry, being of great significance, has become a new and...The people as a whole cannot live for one day without drug, and the requirement of drugs would never come to an end or stay on the same level. Pharmaceutical industry, being of great significance, has become a new and important one in economic growth in the 21st century. Therefore, the modernization of Chinese drugs has also become a hot spot in public opinion in recent years.展开更多
The three aspects of construction, investment and operation belong to systematic projects of smart cities. Smart cities could not be fully accomplished merely with any single aspect being well done. Feasible and effic...The three aspects of construction, investment and operation belong to systematic projects of smart cities. Smart cities could not be fully accomplished merely with any single aspect being well done. Feasible and efficient models lay the foundation to set up modern smart cities. Standardized models arouse various intellectualized conceptions, and fulfill concrete practices. Reasonable operation modes make smart city system to be organic and dynamic, so that various intelligent attributes of smart cities would be fully exerted. The operation process promotes sustainable development of smart cities, on the condition of which intelligentized services be provided to urban residents. This aspect accounts for different results of different cases at home and abroad. By comparing different operation modes of smart city construction at home and abroad, this thesis focuses on backgrounds, contents and successful operations of typical urban constructions. Several chief operation modes of foreign smart city constructions are researched, thus provids references for the construction of smart cities in China, so that innovations of operation and management modes of smart cities in China are expected to occur, and hence push forward construction and development of smart cities in China.展开更多
Acquired immune deficiency syndrome infection can lead to cognitive dysfunction represented by changes in the default mode network.Most recent studies have been cross-sectional and thus have not revealed dynamic chang...Acquired immune deficiency syndrome infection can lead to cognitive dysfunction represented by changes in the default mode network.Most recent studies have been cross-sectional and thus have not revealed dynamic changes in the default mode network following acquired immune deficiency syndrome infection and antiretroviral therapy.Specifically,when brain imaging data at only one time point are analyzed,determining the duration at which the default mode network is the most effective following antiretroviral therapy after the occurrence of acquired immune deficiency syndrome.However,because infection times and other factors are often uncertain,longitudinal studies cannot be conducted directly in the clinic.Therefore,in this study,we performed a longitudinal study on the dynamic changes in the default mode network over time in a rhesus monkey model of simian immunodeficiency virus infection.We found marked changes in default mode network connectivity in 11 pairs of regions of interest at baseline and 10 days and 4 weeks after virus inoculation.Significant interactions between treatment and time were observed in the default mode network connectivity of regions of interest pairs area 31/V6.R and area 8/frontal eye field(FEF).L,area 8/FEF.L and caudal temporal parietal occipital area(TPOC).R,and area 31/V6.R and TPOC.L.ART administered 4 weeks after infection not only interrupted the progress of simian immunodeficiency virus infection but also preserved brain function to a large extent.These findings suggest that the default mode network is affected in the early stage of simian immunodeficiency virus infection and that it may serve as a potential biomarker for early changes in brain function and an objective indicator for making early clinical intervention decisions.展开更多
This paper,based on the classroom teaching in University of Bridgeport and Anhui Polytechnic University,explores some differences in education notions,course design,teacher-student relationship,teaching methods,assess...This paper,based on the classroom teaching in University of Bridgeport and Anhui Polytechnic University,explores some differences in education notions,course design,teacher-student relationship,teaching methods,assessment and evaluation system between Chinese and American higher education.And some reflections and suggestions on Chinese higher education are given to promote Chinese higher education effect.展开更多
As a new teaching mode,Flipped Classroom has become the hot issue of teaching research and it has been accepted and praised highly by more and more researchers and schools.It changes teachers’dominant position in cla...As a new teaching mode,Flipped Classroom has become the hot issue of teaching research and it has been accepted and praised highly by more and more researchers and schools.It changes teachers’dominant position in class and the relationship of teaching and learning between teacher and students,and students change passive learning into active learning.This paper deeply analyzes the essence and connotation of the flipped classroom,the development and practice of it at home and abroad,also existing problems in Flipped Classroom activities in our country were carried out to make the flipped Classroom to play an important role.Teaching practice verified that the Flipped Classroom teaching mode can maximum limit to mobilize students’study enthusiasm,improve the learning efficiency and it is an effective way of teaching.展开更多
A three-dimensional ray tracing study of a whistler-mode chorus is conducted for different geomagnetic activities by using a global core plasma density model. For the upperband chorus, the initial azimuthal wave angle...A three-dimensional ray tracing study of a whistler-mode chorus is conducted for different geomagnetic activities by using a global core plasma density model. For the upperband chorus, the initial azimuthal wave angle affects slightly the projection of ray trajectories onto the plane （Z, √（x^2 ＋ y^2））, but controls the longitudinal propagation. The trajectory of the upper-band chorus is strongly associated with the plasmapause and the magnetic local time （MLT） of chorus source region. For the high geomagnetic activity, the chorus trajectory moves inward together with the plasmapause. In the bulge region, the plasmapause extends outward, while the chorus trajectory moves outward together with the plasmapause. For moderately or high geomagnetic activity, the lower-band chorus suffers low hybrid resonance （LHR） reflection before it reaches the plasmapause, leading to a weak correlation with the geomagnetic activity and magnetic local time of the chorus source region. For low geomagnetic activity, the lower-band chorus may be reflected firstly at the plasmapause instead of suffering LHR reflection, exhibiting a propagation characteristic similar to that of the upper-band chorus. The results provide a new insight into the propagation characteristics of the chorus for different geomagnetic activities and contribute to further understanding of the acceleration of energetic electron by a chorus wave.展开更多
This paper is committed to an empirical study on the application of common English discourse patterns in the English reading teaching for non-English major students at an average or lower proficiency level.A quantitat...This paper is committed to an empirical study on the application of common English discourse patterns in the English reading teaching for non-English major students at an average or lower proficiency level.A quantitative research method is adopted.The research results show that the application of discourse patterns in teaching in the network environment can help improve students’reading comprehension ability to a certain extent.展开更多
A refined derivation of refraction and absorption of the pure O-mode and X-mode Electron Cyclotron Resonance (ECR) wave in tokamak plasma is carried out. The weakly- relativistic dielectric tensor elements are used an...A refined derivation of refraction and absorption of the pure O-mode and X-mode Electron Cyclotron Resonance (ECR) wave in tokamak plasma is carried out. The weakly- relativistic dielectric tensor elements are used and the results show that the refraction only changes a little, compared to that deduced from the cold-plasma dispersion relation even in the inner re- gion. Refined formulae of the wave damping rate are then obtained for both the O-mode and the X-mode fundamental waves.展开更多
The Raman optical activity （ROA） study on S-phenylethylamine is presented by the intensity analyses via bond polarizability and differential bond polarizability. Ample information concerning the physical picture of ...The Raman optical activity （ROA） study on S-phenylethylamine is presented by the intensity analyses via bond polarizability and differential bond polarizability. Ample information concerning the physical picture of this chiral system is obtained, and its ROA mechanism is constructed. Especially, we propose that the asymmetric modes and/or the off-diagonal elements of the electronic polarizability tensor are the potential keys to the exploration of ROA.展开更多
The Financial Crisis in Asia is having a negative impacion the economic development of China, but it also enlightens us. It makes us consider and take measures to avoid such a crisis. I have put forward six measures, ...The Financial Crisis in Asia is having a negative impacion the economic development of China, but it also enlightens us. It makes us consider and take measures to avoid such a crisis. I have put forward six measures, one of which is to promote the transformation of S&T knowledge into productive forces.展开更多
The most significant characteristic in frequency domain during cutting chatter occurring process is the steep rise of the vibration energy in certain narrow frequency band containing the chatter frequency. In accordan...The most significant characteristic in frequency domain during cutting chatter occurring process is the steep rise of the vibration energy in certain narrow frequency band containing the chatter frequency. In accordance with the frequency band-energy principle, a reliable criterion for chatter judgement is proposed and the in-process detection of cutting chatter is realized by the use of microcomputer. This method has the advantages of rapidity, high sensitivity, accuracy and high resistance to interference. Some concrete measures taken in practical applications are also discussed.展开更多
A reliable method is described for the detection of amitoride,triamterene. canrenone and spironolactone in human urine using GC-MS analysis after trimethytsitytation.The mass spectrometric and metabotic features of th...A reliable method is described for the detection of amitoride,triamterene. canrenone and spironolactone in human urine using GC-MS analysis after trimethytsitytation.The mass spectrometric and metabotic features of the compounds are discussed展开更多
MARFE phenomena on HT-7 tokamak is studied in this paper. A best correlation' has been found between the total input ohmic power and the product of the .edge line average density and Zeff. MARFEs which is strongly...MARFE phenomena on HT-7 tokamak is studied in this paper. A best correlation' has been found between the total input ohmic power and the product of the .edge line average density and Zeff. MARFEs which is strongly correlated with impurity density, always occurs at Zeff = 3~8 ohmic discharges. In HT-7 tokamak high Zeff discharges, it is found that the MARFEs usually occur at values of : in the range of 0.5~0.7, where p = In the case of good wall condition (Zeff= 1 ~2), the onset of MARFEs have not been observed before reaching the Greenwald density limit' on HT-7. An improved confinement mode plasma which is induced by the MARFE is observed, the global particle confinement time increases 1.9 times. The relaxation time between the MARFE event trigger and the L-U transition is about 1.4 ms, the followed L-H transition time is 1.9 ms, the improved confinement mode phase is maintained for about 40 ms. MARFE cools the plasma edge, and the electron density profileis observed to become more narrow and peaking.展开更多
The paper is concerned with the combination of Manchu language teaching with culture teaching in two aspects, from which the basic teaching modes can be concluded.First, on the theoretical level, the author states the...The paper is concerned with the combination of Manchu language teaching with culture teaching in two aspects, from which the basic teaching modes can be concluded.First, on the theoretical level, the author states the combined learning mode of ethnic language and culture learning in connection with the multi-cultural interactive mode, and analyzes its theoretic foundation. Second, on the practical level, the paper introduces some of the effective language and culture teaching methods, such as culture lectures, culture discussions, culture investigations, culture comparisons and culture research.展开更多
Infrared spectra of (n-C_9H_(19)NH_3)_2CuCl_4 in three solid phases were investigated. It was found that the phase transition at T_(cl)(25℃) arises from the change of the interaction and packing structure of the chai...Infrared spectra of (n-C_9H_(19)NH_3)_2CuCl_4 in three solid phases were investigated. It was found that the phase transition at T_(cl)(25℃) arises from the change of the interaction and packing structure of the chain. The phase transition at T_(c2)(34℃)is related to the change of a partial conformational order-disorder. The GTC or GTG' and small concentration of TG structure near CH_3 group exist in phase Ⅲ (above 38℃).展开更多
In this paper an experimental study on damage tolerance behaviour of composite panels with softening strips is carried out. A prediction method of residual strength of panels with softening strips is proposed. The com...In this paper an experimental study on damage tolerance behaviour of composite panels with softening strips is carried out. A prediction method of residual strength of panels with softening strips is proposed. The comparison between estimated and experimental results shows that the prediction method can be applied to design. In this paper the failure mechanisms are described.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 binding mode and configuration of cisplatin with F-actin were studied on the basis of charge transfer bands of cisplatin-F-actin complex The binding mode was discussed on the basis of the results of LMCT.Raman and fluorescence spectra.
文摘Nowadays harmful gas in vehicle exhaust has pollute d air heavily. To prevent the environment from polluting, the request of emissions control legislation becomes more stringent. New legislation prescribes not only the emissions limitation of vehicles, but also testing instruments and methods. Test car must be operated on the chassis dynamometer and data must be collect ed and analyzed with prescriptive exhaust analysis system as well. The mass of harmful exhaust gas, containing the concentration and volume of emis sion, which is independent from the model of automobile and engine, can be used as a criterion to evaluate the pollution of an automobile. Constant Volume Sampl e System (CVS) is used to measure vehicle emissions, but it is too expensive to apply extensively. The Vehicle Mass Analysis System(Vmas), a new vehicle exhaust mass analysis system produced in USA late 1990s,is used to test and analyze veh icle exhaust. As a test instrument, it has the virtue of cheapness and easy mana geability. In this paper, Vmas is used to measure the emissions of a light truck CA1020F. A ccording to 15 running modes of Vehicle Exhaust Legislation, the test car is ope rated on the chassis dynamometer and data are collected and analyzed with Vmas. The test results show that it is viable to measure and evaluate automobile emiss ion with Vmas. Most of HC exhaust is produced when the car is decelerating. The major factor that influences the mass of HC emission is the sudden decrease of e ngine load causing incomplete combustion in decelerating mode. Test results indi cate CO and NOx are mainly produced in the process of increasing load. The forme r reason is incomplete combustion and the latter is high burning temperature cau sed by the increasing load. The methods of reducing automobile emission are also discussed in this paper.
文摘The people as a whole cannot live for one day without drug, and the requirement of drugs would never come to an end or stay on the same level. Pharmaceutical industry, being of great significance, has become a new and important one in economic growth in the 21st century. Therefore, the modernization of Chinese drugs has also become a hot spot in public opinion in recent years.
基金supported by the Graduate Research Projects of Guizhou University of Finance and Economics titled with "Study on the PPP mode of Characteristic Towns Construction"
文摘The three aspects of construction, investment and operation belong to systematic projects of smart cities. Smart cities could not be fully accomplished merely with any single aspect being well done. Feasible and efficient models lay the foundation to set up modern smart cities. Standardized models arouse various intellectualized conceptions, and fulfill concrete practices. Reasonable operation modes make smart city system to be organic and dynamic, so that various intelligent attributes of smart cities would be fully exerted. The operation process promotes sustainable development of smart cities, on the condition of which intelligentized services be provided to urban residents. This aspect accounts for different results of different cases at home and abroad. By comparing different operation modes of smart city construction at home and abroad, this thesis focuses on backgrounds, contents and successful operations of typical urban constructions. Several chief operation modes of foreign smart city constructions are researched, thus provids references for the construction of smart cities in China, so that innovations of operation and management modes of smart cities in China are expected to occur, and hence push forward construction and development of smart cities in China.
基金supported by the National Natural Science Foundation of China,Nos.82271963(to HJL),81771806(to HJL),61936013(to HJL),82001914(to ZCT),81871511(to HZ)National Key R&D Program of China,No.2021YFA1301603(to ZCT)the Natural Science Foundation of Beijing,No.7212051(to HJL).
文摘Acquired immune deficiency syndrome infection can lead to cognitive dysfunction represented by changes in the default mode network.Most recent studies have been cross-sectional and thus have not revealed dynamic changes in the default mode network following acquired immune deficiency syndrome infection and antiretroviral therapy.Specifically,when brain imaging data at only one time point are analyzed,determining the duration at which the default mode network is the most effective following antiretroviral therapy after the occurrence of acquired immune deficiency syndrome.However,because infection times and other factors are often uncertain,longitudinal studies cannot be conducted directly in the clinic.Therefore,in this study,we performed a longitudinal study on the dynamic changes in the default mode network over time in a rhesus monkey model of simian immunodeficiency virus infection.We found marked changes in default mode network connectivity in 11 pairs of regions of interest at baseline and 10 days and 4 weeks after virus inoculation.Significant interactions between treatment and time were observed in the default mode network connectivity of regions of interest pairs area 31/V6.R and area 8/frontal eye field(FEF).L,area 8/FEF.L and caudal temporal parietal occipital area(TPOC).R,and area 31/V6.R and TPOC.L.ART administered 4 weeks after infection not only interrupted the progress of simian immunodeficiency virus infection but also preserved brain function to a large extent.These findings suggest that the default mode network is affected in the early stage of simian immunodeficiency virus infection and that it may serve as a potential biomarker for early changes in brain function and an objective indicator for making early clinical intervention decisions.
文摘This paper,based on the classroom teaching in University of Bridgeport and Anhui Polytechnic University,explores some differences in education notions,course design,teacher-student relationship,teaching methods,assessment and evaluation system between Chinese and American higher education.And some reflections and suggestions on Chinese higher education are given to promote Chinese higher education effect.
文摘As a new teaching mode,Flipped Classroom has become the hot issue of teaching research and it has been accepted and praised highly by more and more researchers and schools.It changes teachers’dominant position in class and the relationship of teaching and learning between teacher and students,and students change passive learning into active learning.This paper deeply analyzes the essence and connotation of the flipped classroom,the development and practice of it at home and abroad,also existing problems in Flipped Classroom activities in our country were carried out to make the flipped Classroom to play an important role.Teaching practice verified that the Flipped Classroom teaching mode can maximum limit to mobilize students’study enthusiasm,improve the learning efficiency and it is an effective way of teaching.
基金supported by National Natural Science Foundation of China(Nos.40874076,40925014)
文摘A three-dimensional ray tracing study of a whistler-mode chorus is conducted for different geomagnetic activities by using a global core plasma density model. For the upperband chorus, the initial azimuthal wave angle affects slightly the projection of ray trajectories onto the plane （Z, √（x^2 ＋ y^2））, but controls the longitudinal propagation. The trajectory of the upper-band chorus is strongly associated with the plasmapause and the magnetic local time （MLT） of chorus source region. For the high geomagnetic activity, the chorus trajectory moves inward together with the plasmapause. In the bulge region, the plasmapause extends outward, while the chorus trajectory moves outward together with the plasmapause. For moderately or high geomagnetic activity, the lower-band chorus suffers low hybrid resonance （LHR） reflection before it reaches the plasmapause, leading to a weak correlation with the geomagnetic activity and magnetic local time of the chorus source region. For low geomagnetic activity, the lower-band chorus may be reflected firstly at the plasmapause instead of suffering LHR reflection, exhibiting a propagation characteristic similar to that of the upper-band chorus. The results provide a new insight into the propagation characteristics of the chorus for different geomagnetic activities and contribute to further understanding of the acceleration of energetic electron by a chorus wave.
基金General Project for Educational and Teaching Reform of Xinjiang Yili Normal University,2022:Empirical Study on the Reform of College English Reading Teaching Based on Discourse Patterns in Network Environment.Funding amount:CNY 10,000.Duration:April 2022-April 2025(Project No.:YSYB202268).
文摘This paper is committed to an empirical study on the application of common English discourse patterns in the English reading teaching for non-English major students at an average or lower proficiency level.A quantitative research method is adopted.The research results show that the application of discourse patterns in teaching in the network environment can help improve students’reading comprehension ability to a certain extent.
基金This work is supported by the China Nutional Nature Science Foundation No.19975015
文摘A refined derivation of refraction and absorption of the pure O-mode and X-mode Electron Cyclotron Resonance (ECR) wave in tokamak plasma is carried out. The weakly- relativistic dielectric tensor elements are used and the results show that the refraction only changes a little, compared to that deduced from the cold-plasma dispersion relation even in the inner re- gion. Refined formulae of the wave damping rate are then obtained for both the O-mode and the X-mode fundamental waves.
基金Project supported by the National Natural Science Foundation of China(Grant No.21153001)
文摘The Raman optical activity （ROA） study on S-phenylethylamine is presented by the intensity analyses via bond polarizability and differential bond polarizability. Ample information concerning the physical picture of this chiral system is obtained, and its ROA mechanism is constructed. Especially, we propose that the asymmetric modes and/or the off-diagonal elements of the electronic polarizability tensor are the potential keys to the exploration of ROA.
文摘The Financial Crisis in Asia is having a negative impacion the economic development of China, but it also enlightens us. It makes us consider and take measures to avoid such a crisis. I have put forward six measures, one of which is to promote the transformation of S&T knowledge into productive forces.
文摘The most significant characteristic in frequency domain during cutting chatter occurring process is the steep rise of the vibration energy in certain narrow frequency band containing the chatter frequency. In accordance with the frequency band-energy principle, a reliable criterion for chatter judgement is proposed and the in-process detection of cutting chatter is realized by the use of microcomputer. This method has the advantages of rapidity, high sensitivity, accuracy and high resistance to interference. Some concrete measures taken in practical applications are also discussed.
文摘A reliable method is described for the detection of amitoride,triamterene. canrenone and spironolactone in human urine using GC-MS analysis after trimethytsitytation.The mass spectrometric and metabotic features of the compounds are discussed
文摘MARFE phenomena on HT-7 tokamak is studied in this paper. A best correlation' has been found between the total input ohmic power and the product of the .edge line average density and Zeff. MARFEs which is strongly correlated with impurity density, always occurs at Zeff = 3~8 ohmic discharges. In HT-7 tokamak high Zeff discharges, it is found that the MARFEs usually occur at values of : in the range of 0.5~0.7, where p = In the case of good wall condition (Zeff= 1 ~2), the onset of MARFEs have not been observed before reaching the Greenwald density limit' on HT-7. An improved confinement mode plasma which is induced by the MARFE is observed, the global particle confinement time increases 1.9 times. The relaxation time between the MARFE event trigger and the L-U transition is about 1.4 ms, the followed L-H transition time is 1.9 ms, the improved confinement mode phase is maintained for about 40 ms. MARFE cools the plasma edge, and the electron density profileis observed to become more narrow and peaking.
文摘The paper is concerned with the combination of Manchu language teaching with culture teaching in two aspects, from which the basic teaching modes can be concluded.First, on the theoretical level, the author states the combined learning mode of ethnic language and culture learning in connection with the multi-cultural interactive mode, and analyzes its theoretic foundation. Second, on the practical level, the paper introduces some of the effective language and culture teaching methods, such as culture lectures, culture discussions, culture investigations, culture comparisons and culture research.
文摘Infrared spectra of (n-C_9H_(19)NH_3)_2CuCl_4 in three solid phases were investigated. It was found that the phase transition at T_(cl)(25℃) arises from the change of the interaction and packing structure of the chain. The phase transition at T_(c2)(34℃)is related to the change of a partial conformational order-disorder. The GTC or GTG' and small concentration of TG structure near CH_3 group exist in phase Ⅲ (above 38℃).
文摘In this paper an experimental study on damage tolerance behaviour of composite panels with softening strips is carried out. A prediction method of residual strength of panels with softening strips is proposed. The comparison between estimated and experimental results shows that the prediction method can be applied to design. In this paper the failure mechanisms are described.
