The spirit of the May 4th Movement has a profound influence on China’s self-confidence in its path,political system,guiding theories,and culture.This spirit,which conceived the choice of socialist path,has become the...The spirit of the May 4th Movement has a profound influence on China’s self-confidence in its path,political system,guiding theories,and culture.This spirit,which conceived the choice of socialist path,has become the foundation of confidence in the socialist path with Chinese characteristics.The Marxist theory contained in the spirit is the core of the theoretical self-confidence of socialism;the socialist system bred by the spirit has borne the fruit of confidence in the socialist system with Chinese characteristics;the new culture movement produced by the spirit is the thrust of cultural self-confidence of socialism with Chinese characteristics.Inheriting and developing the spirit of the May Fourth Movement in the new era is conducive to strengthen the Four Confidences.展开更多
As a result of the fact that the stabilization program put into force in 1978 and 1979 in the Economy of Turkey could not be efficiently implemented due to the political instability and weak governments, a need to dra...As a result of the fact that the stabilization program put into force in 1978 and 1979 in the Economy of Turkey could not be efficiently implemented due to the political instability and weak governments, a need to draft a new stabilization program emerged. The stabilization program of January 24th, 1980 was prepared in this environment. This is a program which includes the structural transformations in the long term as well as the aims foreseen to be realized in the short term. The program adopted the implementation of significant changes in the structure of the economy and the price mechanism in the market which becomes the only guide as the basic principle. The difference from the previous programs is an economic development program intending to provide a very permanent and structural change in the economy rather than to realize the short-term goals. With the decisions, a large devaluation was implemented, the exchange rate policy and importation were liberated, foreign capital and exportation were encouraged, the subsidies with the exception of energy, fertilizer, and transportation were removed, restrictions were imposed on the support purchases in agricultural products, and the overseas contracting services were supported. There are two structural objectives desired to be performed in the long term, shrinking the public sector and removing the intervention in the markets. The basic philosophy is to decrease the state intervention to the minimum level in the economy and to bring functionality to the market economy and to validate the price mechanism. In this paper, the stabilization decisions in the economy of Turkey belonging to pre- and early post-January 24th period will be comparatively analysed.展开更多
Mr. Chairman, Distinguished Members of the Committee, First of all, I would like to extend, on behalf of the Chinese delegation, our greetings and respects to all the distinguished members of the Committee. The Commit...Mr. Chairman, Distinguished Members of the Committee, First of all, I would like to extend, on behalf of the Chinese delegation, our greetings and respects to all the distinguished members of the Committee. The Committee has made enormous efforts and played an important role in promoting the purposes and principles of the Convention and reinforcing the global efforts to ban and prevent torture. The Chinese Government appreciates your endeavor and will continue to support the work of the Committee.展开更多
BACKGROUND Respiratory viruses are increasingly detected in children with communityacquired pneumonia.Further strategies to limit antibiotic use in children with viral pneumonia are warranted.AIM To explore clinical e...BACKGROUND Respiratory viruses are increasingly detected in children with communityacquired pneumonia.Further strategies to limit antibiotic use in children with viral pneumonia are warranted.AIM To explore clinical efficacy of budesonide/formoterol inhalation powder for viral pneumonia in children and its impact on cellular immunity and inflammatory factor production.METHODS A total of 60 children with viral pneumonia were recruited:30 receiving budesonide/formoterol inhalation powder and 30 conventional symptomatic treatment.Outcome measures included peripheral blood levels of inflammatory cytokines,CD4^(+),CD8^(+),Th1,Th2,Th17 and Treg,clinical efficacy,and incidence of adverse reactions.RESULTS Compared with the control group,the observation group showed a significant reduction in interleukin-6 and high-sensitivity C-reactive protein levels after treatment.Compared with the control group,the observation group showed a significant increase in CD4^(+)/CD8^(+)and Th1/Th2 levels,and a decrease in Th17/Treg levels after treatment.The total effective rates in the observation group and the control group were 93.75%and 85.00%,respectively,which was a significant difference(P=0.003).CONCLUSION Budesonide/formoterol inhalation powder significantly improved therapeutic efficacy for viral pneumonia in children.The mechanism of action may be related to downregulation of the inflammatory response and improved cellular immune function.展开更多
Methylprednisolone pulse treatment is currently used fo r optic neuritis.It can speed visual recovery,but does not improve the ultimate visual outcomes.Recent studies have repo rted that miR-125 a-5 p has immunomodula...Methylprednisolone pulse treatment is currently used fo r optic neuritis.It can speed visual recovery,but does not improve the ultimate visual outcomes.Recent studies have repo rted that miR-125 a-5 p has immunomodulatory effects on autoimmune diseases.However,it remains unclear whether miR-125 a-5 p has effects on optic neuritis.In this study,we used adeno-associated virus to overexpress or silence miR-125 a-5 p in mice.We found that silencing miR-125 a-5 p increased the latency of visual evoked potential and aggravated inflammation of the optic nerve.Ove rexpression of miR-125 a-5 p suppressed inflammation of the optic nerve,protected retinal ganglion cells,and increased the percentage of Treg cells.Our findings show that miR-125 a-5 p exhibits anti-inflammatory effects through promoting the diffe rentiation of Treg cells.展开更多
This qualitative research study attempts to discover the real thinking process of learners who are native Chinese speakers in Academic English Writing(AEW)through interviews.Introspecting an EFL learner’s thinking pr...This qualitative research study attempts to discover the real thinking process of learners who are native Chinese speakers in Academic English Writing(AEW)through interviews.Introspecting an EFL learner’s thinking process in English writing is based on two theories:critical period hypothesis and translanguaging.The results of the study indicate that translanguaging has a positive impact on the English CET-4 writing of learners who lack proficiency in English.For those learners who lack proficiency in the second language,translanguaging is an effective auxiliary tool for them to complete AEW.展开更多
During the 12^(th)Five-Year Plan period,the environmental protection information work made remarkable achievements,and the construction of nationwide air quality monitoring network was completed; the trinitarian monit...During the 12^(th)Five-Year Plan period,the environmental protection information work made remarkable achievements,and the construction of nationwide air quality monitoring network was completed; the trinitarian monitoring system was established,and environmental emergency command ability enhanced significantly. However,the issues of " information island" and " application silo" are still outstanding,and the application and promotion of new technologies make slow progress; the capacity of information system to support environmental protection business is insufficient,and there is no capacity for decision analysis. In the 13^(th)Five-Year Plan period,it is needed to strengthen the application and promotion of new technologies such as cloud computing,big data,Internet of Things,and spatial information,mainly construct and improve " Cloud Computing Based Environmental Protection( CCBEP) ", " big data platform of ecological environment",and then realize the core objective of improving environmental quality.展开更多
2020 is the final year of China’s 13th Five-Year Plan period and an intersection between the“two centennial goals.”It is also a vital year for drafting the 14th Five-year Plan and embarking on a new journey of soci...2020 is the final year of China’s 13th Five-Year Plan period and an intersection between the“two centennial goals.”It is also a vital year for drafting the 14th Five-year Plan and embarking on a new journey of socialist modernization.What socio-economic progress has China achieved during the 13th Five-Year Plan period and what are the opportunities,challenges and countermeasures for the 14th Five-Year Plan period?In May 2020,the China Economist conducted a questionnaire survey among economists.Results suggest that during the 13th Five-Year Plan period,China has achieved remarkable progress in the following areas:significant socio-economic development,deepening industry-ICT integration,and rapid growth of new economy;mass entrepreneurship and mass innovation,and enhanced R&D capabilities for cutting-edge technologies;green production and the abatement of air and water pollution;and poverty reduction.In the 14th Five-Year Plan period,opportunities co-exist with challenges for China’s socio-economic development,which brims with resiliency.Surveyed economists felt sanguine about China’s development outlook.Based on the results,surveyed economists believed that the Chinese government should focus on the following priorities during the 14th Five-Year Plan period:expediting industrial transition,strengthening the real economy,and exploring domestic consumption potentials;ramping up research in fundamental science,and accelerating the research of critical technologies;increasing equal access to basic public services;and promoting green development in all respects,including green consumption,production,distribution,innovation,and finance.展开更多
This paper is to analyze the differences between the 3rd edition and 4th edition of Oxford Advanced Learner's English- Chinese Dictionary (hereafter referred to as ALECD3 and ALECD4). By making comparison between ...This paper is to analyze the differences between the 3rd edition and 4th edition of Oxford Advanced Learner's English- Chinese Dictionary (hereafter referred to as ALECD3 and ALECD4). By making comparison between the two dictionaries in the learner's and compiler's perspectives, it high-lights the priority of the 4th edition in content and compilation. Following a brief introduction in Part 1, Part 2 examines the innovations the 3rd edition has made in verb-pattern scheme, compounds, entries, examples, adjectives and appendices from the learner's perspective. Part3 holds a theoretical discussion of prescription and description in the 4th edition.展开更多
The 12 th Five-Year Plan period was unusual five years in the development of China. Under the dual pressure of complex international environment and arduous domestic reform task,China made outstanding achievements in ...The 12 th Five-Year Plan period was unusual five years in the development of China. Under the dual pressure of complex international environment and arduous domestic reform task,China made outstanding achievements in economic development,which lays a solid foundation for building a moderately prosperous society in all respects in the 13 th Five-Year Plan period. The key and difficult points of building a moderately prosperous society in all respects lie in solving issues concerning agriculture,farmers,and rural areas. The 18 th National Congress of the CPC stated that integrated urban and rural development is the fundamental approach for solving issues concerning agriculture,farmers,and rural areas. As a transitional form from rural areas to urban areas,small town play an important role in integrated urban and rural development. In the 13 th Five-Year Plan period,China should take a new road of characteristic urbanization,energetically develop key towns,central towns,and characteristic towns,use points to drive areas,and promote coordinated progress of urbanization construction and new countryside construction. Focusing on the objective of building a moderately prosperous society in all respects and taking Shangrao City as an example,we analyzed construction of small town,in order to provide scientific theoretical reference for urbanization development,plan preparation,and policy formulation of Shangrao City.展开更多
The present paper deals with the existence of periodic orbits in the Circular Restricted Four-Body Problem (CR4BP) in two-dimensional co-ordinate system when the second primary is a triaxial rigid body and the third p...The present paper deals with the existence of periodic orbits in the Circular Restricted Four-Body Problem (CR4BP) in two-dimensional co-ordinate system when the second primary is a triaxial rigid body and the third primary of inferior mass (in comparison of the other primaries) is placed at triangular libration point L4 of the Circular Restricted Three-Body Problem (CR3BP). With the help of generating solutions, we formed a basis for the existence of periodic orbits, then an analytical approach given by Hassan et al. [1], was applied to our model of equilateral triangular configuration. It is found that in general solution also;the character of periodic orbits is conserved. For verification of the existence of periodic orbits, we have applied the criterion of Duboshin [2] and found satisfied.展开更多
Madam Chairwoman, Mr. Rapporteur, Distinguished Members of the Committee, First of all, I would like to extend, on behalf of the Chinese delegation, our heartfelt greetings and respects to all the distinguished membe...Madam Chairwoman, Mr. Rapporteur, Distinguished Members of the Committee, First of all, I would like to extend, on behalf of the Chinese delegation, our heartfelt greetings and respects to all the distinguished members of the Committee. The Committee has made enormous efforts and played an important role in promoting the objectives and principles of the International Convention on Elimination of All Forms of Racial Discrimination. The Chinese Government appreciates your endeavour and will continue to support the work of the Committee.展开更多
In this paper,the author first summarizes China’s price operation situation and characteristics since the 1990s,and thenanalyzes inflation shaping factors and types.Based on that,the author raises six inflation early...In this paper,the author first summarizes China’s price operation situation and characteristics since the 1990s,and thenanalyzes inflation shaping factors and types.Based on that,the author raises six inflation early-warning indexes andfully dissects influencing factors of the overall price trend and inflation risks during the 12th Five-year Plan period.Afterthat,the author explains some aspects of price fluctuation that warrants attention during the 12th Five-year Plan period.Finally,the author puts forward policies and suggestions for stabilizing the overall price during the transformation of theeconomic development mode based on our actual situation.展开更多
Sea ice in the Arctic has been reducing rapidly in the past half century due to global warming. This study analyzes the variations of sea ice extent in the entire Arctic Ocean and its sub regions. The results indicate...Sea ice in the Arctic has been reducing rapidly in the past half century due to global warming. This study analyzes the variations of sea ice extent in the entire Arctic Ocean and its sub regions. The results indicate that sea ice extent reduction during 1979-2013 is most significant in summer, following by that in autumn, winter and spring. In years with rich sea ice, sea ice extent anomaly with seasonal cycle removed changes with a period of 4-6 years. The year of 2003-2006 is the ice-rich period with diverse regional difference in this century. In years with poor sea ice, sea ice margin retreats further north in the Arctic. Sea ice in the Fram Strait changes in an opposite way to that in the entire Arctic. Sea ice coverage index in melting-freezing period is an critical indicator for sea ice changes, which shows an coincident change in the Arctic and sub regions. Since 2002, Region C2 in north of the Pacific sector contributes most to sea ice changes in the central Aarctic, followed by C1 and C3. Sea ice changes in different regions show three relationships. The correlation coefficient between sea ice coverage index of the Chukchi Sea and that of the East Siberian Sea is high, suggesting good consistency of ice variation. In the Atlantic sector, sea ice changes are coincided with each other between the Kara Sea and the Barents Sea as a result of warm inflow into the Kara Sea from the Barents Sea. Sea ice changes in the central Arctic are affected by surrounding seas.展开更多
Cryogenic insulation material rigid polyurethane(PU)foams were developed using bio-based and recycled feedstock.Polyols obtained from tall oil fatty acids produced as a side stream of wood biomass pulping and recycled...Cryogenic insulation material rigid polyurethane(PU)foams were developed using bio-based and recycled feedstock.Polyols obtained from tall oil fatty acids produced as a side stream of wood biomass pulping and recycled polyethylene terephthalate were used to develop rigid PU foam formulations.The 4th generation physical blowing agents with low global warming potential and low ozone depletion potential were used to develop rigid PU foam cryogenic insulation with excellent mechanical and thermal properties.Obtained rigid PU foams had a thermal conductivity coefficient as low as 0.0171 W/m·K and an apparent density of 37-40 kg/m^(3).The developed rigid PU foams had anisotropic compression strength properties,which were higher parallel to the foaming direction.Moreover,the compression strength was also influenced by the type of applied bio-based polyol.The bio-based polyols with higher OH group functionality delivered higher crosslinking density of polymer matrix;thus,the mechanical properties were also higher.The mechanical strength of the foams increased when materials were tested at liquid nitrogen temperature due to the stiffening of the polymer matrix.The thermal properties of the developed materials were determined using differential scanning calorimetry,dynamic mechanical analysis,and thermogravimetric analysis methods.Lastly,the developed rigid PU foams had good adhesion to the aluminium substrate before and after applying cyroshock and an excellent safety coefficient of 4-5.Rigid PU foams developed using Solstice LBA delivered adhesion strength of~0.5 MPa and may be considered for application as cryogenic insulation in the aerospace industry.展开更多
Using scientific metrological method,this paper analyzed all literature published by top 4 marketing periodicals( JCR,JM,JMR,and MS) in 2009- 2013. It is intended to find out hot issues and frontier topics of current ...Using scientific metrological method,this paper analyzed all literature published by top 4 marketing periodicals( JCR,JM,JMR,and MS) in 2009- 2013. It is intended to find out hot issues and frontier topics of current marketing research through cluster analysis of key words,get to know cooperation and exchange of organizations through analysis of organization cooperative network,explore new topics of marketing researches with the aid of analysis of abrupt change words,and explore evolution path and development rules of marketing researches through co-citation network analysis.展开更多
基金The key project of Humanities and Social Sciences of Chongqing Municipal Commission of Education“Research on the Construction of China’s National Cohesion in the New Era based on Cultural Soft Power”(19SKGH140)and the special theoretical key project of Chongqing Social Sciences Planning:“Research on‘Four Comprehensives’and National Cohesion in the Philosophical Context”(17ZDZT29).
文摘The spirit of the May 4th Movement has a profound influence on China’s self-confidence in its path,political system,guiding theories,and culture.This spirit,which conceived the choice of socialist path,has become the foundation of confidence in the socialist path with Chinese characteristics.The Marxist theory contained in the spirit is the core of the theoretical self-confidence of socialism;the socialist system bred by the spirit has borne the fruit of confidence in the socialist system with Chinese characteristics;the new culture movement produced by the spirit is the thrust of cultural self-confidence of socialism with Chinese characteristics.Inheriting and developing the spirit of the May Fourth Movement in the new era is conducive to strengthen the Four Confidences.
文摘As a result of the fact that the stabilization program put into force in 1978 and 1979 in the Economy of Turkey could not be efficiently implemented due to the political instability and weak governments, a need to draft a new stabilization program emerged. The stabilization program of January 24th, 1980 was prepared in this environment. This is a program which includes the structural transformations in the long term as well as the aims foreseen to be realized in the short term. The program adopted the implementation of significant changes in the structure of the economy and the price mechanism in the market which becomes the only guide as the basic principle. The difference from the previous programs is an economic development program intending to provide a very permanent and structural change in the economy rather than to realize the short-term goals. With the decisions, a large devaluation was implemented, the exchange rate policy and importation were liberated, foreign capital and exportation were encouraged, the subsidies with the exception of energy, fertilizer, and transportation were removed, restrictions were imposed on the support purchases in agricultural products, and the overseas contracting services were supported. There are two structural objectives desired to be performed in the long term, shrinking the public sector and removing the intervention in the markets. The basic philosophy is to decrease the state intervention to the minimum level in the economy and to bring functionality to the market economy and to validate the price mechanism. In this paper, the stabilization decisions in the economy of Turkey belonging to pre- and early post-January 24th period will be comparatively analysed.
文摘Mr. Chairman, Distinguished Members of the Committee, First of all, I would like to extend, on behalf of the Chinese delegation, our greetings and respects to all the distinguished members of the Committee. The Committee has made enormous efforts and played an important role in promoting the purposes and principles of the Convention and reinforcing the global efforts to ban and prevent torture. The Chinese Government appreciates your endeavor and will continue to support the work of the Committee.
基金the Wenzhou Basic Medical and Health Science and Technology Project,No.Y20210307.
文摘BACKGROUND Respiratory viruses are increasingly detected in children with communityacquired pneumonia.Further strategies to limit antibiotic use in children with viral pneumonia are warranted.AIM To explore clinical efficacy of budesonide/formoterol inhalation powder for viral pneumonia in children and its impact on cellular immunity and inflammatory factor production.METHODS A total of 60 children with viral pneumonia were recruited:30 receiving budesonide/formoterol inhalation powder and 30 conventional symptomatic treatment.Outcome measures included peripheral blood levels of inflammatory cytokines,CD4^(+),CD8^(+),Th1,Th2,Th17 and Treg,clinical efficacy,and incidence of adverse reactions.RESULTS Compared with the control group,the observation group showed a significant reduction in interleukin-6 and high-sensitivity C-reactive protein levels after treatment.Compared with the control group,the observation group showed a significant increase in CD4^(+)/CD8^(+)and Th1/Th2 levels,and a decrease in Th17/Treg levels after treatment.The total effective rates in the observation group and the control group were 93.75%and 85.00%,respectively,which was a significant difference(P=0.003).CONCLUSION Budesonide/formoterol inhalation powder significantly improved therapeutic efficacy for viral pneumonia in children.The mechanism of action may be related to downregulation of the inflammatory response and improved cellular immune function.
基金supported by the National Natural Science Foundation of China,No.81560162the Guangxi Natural Science Foundation of China,No.2018GXNSFAA050052(both YD)。
文摘Methylprednisolone pulse treatment is currently used fo r optic neuritis.It can speed visual recovery,but does not improve the ultimate visual outcomes.Recent studies have repo rted that miR-125 a-5 p has immunomodulatory effects on autoimmune diseases.However,it remains unclear whether miR-125 a-5 p has effects on optic neuritis.In this study,we used adeno-associated virus to overexpress or silence miR-125 a-5 p in mice.We found that silencing miR-125 a-5 p increased the latency of visual evoked potential and aggravated inflammation of the optic nerve.Ove rexpression of miR-125 a-5 p suppressed inflammation of the optic nerve,protected retinal ganglion cells,and increased the percentage of Treg cells.Our findings show that miR-125 a-5 p exhibits anti-inflammatory effects through promoting the diffe rentiation of Treg cells.
文摘This qualitative research study attempts to discover the real thinking process of learners who are native Chinese speakers in Academic English Writing(AEW)through interviews.Introspecting an EFL learner’s thinking process in English writing is based on two theories:critical period hypothesis and translanguaging.The results of the study indicate that translanguaging has a positive impact on the English CET-4 writing of learners who lack proficiency in English.For those learners who lack proficiency in the second language,translanguaging is an effective auxiliary tool for them to complete AEW.
文摘During the 12^(th)Five-Year Plan period,the environmental protection information work made remarkable achievements,and the construction of nationwide air quality monitoring network was completed; the trinitarian monitoring system was established,and environmental emergency command ability enhanced significantly. However,the issues of " information island" and " application silo" are still outstanding,and the application and promotion of new technologies make slow progress; the capacity of information system to support environmental protection business is insufficient,and there is no capacity for decision analysis. In the 13^(th)Five-Year Plan period,it is needed to strengthen the application and promotion of new technologies such as cloud computing,big data,Internet of Things,and spatial information,mainly construct and improve " Cloud Computing Based Environmental Protection( CCBEP) ", " big data platform of ecological environment",and then realize the core objective of improving environmental quality.
文摘2020 is the final year of China’s 13th Five-Year Plan period and an intersection between the“two centennial goals.”It is also a vital year for drafting the 14th Five-year Plan and embarking on a new journey of socialist modernization.What socio-economic progress has China achieved during the 13th Five-Year Plan period and what are the opportunities,challenges and countermeasures for the 14th Five-Year Plan period?In May 2020,the China Economist conducted a questionnaire survey among economists.Results suggest that during the 13th Five-Year Plan period,China has achieved remarkable progress in the following areas:significant socio-economic development,deepening industry-ICT integration,and rapid growth of new economy;mass entrepreneurship and mass innovation,and enhanced R&D capabilities for cutting-edge technologies;green production and the abatement of air and water pollution;and poverty reduction.In the 14th Five-Year Plan period,opportunities co-exist with challenges for China’s socio-economic development,which brims with resiliency.Surveyed economists felt sanguine about China’s development outlook.Based on the results,surveyed economists believed that the Chinese government should focus on the following priorities during the 14th Five-Year Plan period:expediting industrial transition,strengthening the real economy,and exploring domestic consumption potentials;ramping up research in fundamental science,and accelerating the research of critical technologies;increasing equal access to basic public services;and promoting green development in all respects,including green consumption,production,distribution,innovation,and finance.
文摘This paper is to analyze the differences between the 3rd edition and 4th edition of Oxford Advanced Learner's English- Chinese Dictionary (hereafter referred to as ALECD3 and ALECD4). By making comparison between the two dictionaries in the learner's and compiler's perspectives, it high-lights the priority of the 4th edition in content and compilation. Following a brief introduction in Part 1, Part 2 examines the innovations the 3rd edition has made in verb-pattern scheme, compounds, entries, examples, adjectives and appendices from the learner's perspective. Part3 holds a theoretical discussion of prescription and description in the 4th edition.
文摘The 12 th Five-Year Plan period was unusual five years in the development of China. Under the dual pressure of complex international environment and arduous domestic reform task,China made outstanding achievements in economic development,which lays a solid foundation for building a moderately prosperous society in all respects in the 13 th Five-Year Plan period. The key and difficult points of building a moderately prosperous society in all respects lie in solving issues concerning agriculture,farmers,and rural areas. The 18 th National Congress of the CPC stated that integrated urban and rural development is the fundamental approach for solving issues concerning agriculture,farmers,and rural areas. As a transitional form from rural areas to urban areas,small town play an important role in integrated urban and rural development. In the 13 th Five-Year Plan period,China should take a new road of characteristic urbanization,energetically develop key towns,central towns,and characteristic towns,use points to drive areas,and promote coordinated progress of urbanization construction and new countryside construction. Focusing on the objective of building a moderately prosperous society in all respects and taking Shangrao City as an example,we analyzed construction of small town,in order to provide scientific theoretical reference for urbanization development,plan preparation,and policy formulation of Shangrao City.
文摘The present paper deals with the existence of periodic orbits in the Circular Restricted Four-Body Problem (CR4BP) in two-dimensional co-ordinate system when the second primary is a triaxial rigid body and the third primary of inferior mass (in comparison of the other primaries) is placed at triangular libration point L4 of the Circular Restricted Three-Body Problem (CR3BP). With the help of generating solutions, we formed a basis for the existence of periodic orbits, then an analytical approach given by Hassan et al. [1], was applied to our model of equilateral triangular configuration. It is found that in general solution also;the character of periodic orbits is conserved. For verification of the existence of periodic orbits, we have applied the criterion of Duboshin [2] and found satisfied.
文摘Madam Chairwoman, Mr. Rapporteur, Distinguished Members of the Committee, First of all, I would like to extend, on behalf of the Chinese delegation, our heartfelt greetings and respects to all the distinguished members of the Committee. The Committee has made enormous efforts and played an important role in promoting the objectives and principles of the International Convention on Elimination of All Forms of Racial Discrimination. The Chinese Government appreciates your endeavour and will continue to support the work of the Committee.
文摘In this paper,the author first summarizes China’s price operation situation and characteristics since the 1990s,and thenanalyzes inflation shaping factors and types.Based on that,the author raises six inflation early-warning indexes andfully dissects influencing factors of the overall price trend and inflation risks during the 12th Five-year Plan period.Afterthat,the author explains some aspects of price fluctuation that warrants attention during the 12th Five-year Plan period.Finally,the author puts forward policies and suggestions for stabilizing the overall price during the transformation of theeconomic development mode based on our actual situation.
基金The National Basic Research Program of China under contract No.2015CB953900the Key Project of Chinese Natural Science Foundation under contract No.41330960the Polar Science Strategic Research Foundation of China under contract No.20120102
文摘Sea ice in the Arctic has been reducing rapidly in the past half century due to global warming. This study analyzes the variations of sea ice extent in the entire Arctic Ocean and its sub regions. The results indicate that sea ice extent reduction during 1979-2013 is most significant in summer, following by that in autumn, winter and spring. In years with rich sea ice, sea ice extent anomaly with seasonal cycle removed changes with a period of 4-6 years. The year of 2003-2006 is the ice-rich period with diverse regional difference in this century. In years with poor sea ice, sea ice margin retreats further north in the Arctic. Sea ice in the Fram Strait changes in an opposite way to that in the entire Arctic. Sea ice coverage index in melting-freezing period is an critical indicator for sea ice changes, which shows an coincident change in the Arctic and sub regions. Since 2002, Region C2 in north of the Pacific sector contributes most to sea ice changes in the central Aarctic, followed by C1 and C3. Sea ice changes in different regions show three relationships. The correlation coefficient between sea ice coverage index of the Chukchi Sea and that of the East Siberian Sea is high, suggesting good consistency of ice variation. In the Atlantic sector, sea ice changes are coincided with each other between the Kara Sea and the Barents Sea as a result of warm inflow into the Kara Sea from the Barents Sea. Sea ice changes in the central Arctic are affected by surrounding seas.
基金funded by projects“Smart Materials,Photonics,Technologies and Engineering Ecosystem(MOTE)”(Contract No.VPP-EM-FOTONIKA-2022/1-0001)“Bio-Based Cryogenic Insulation for Aerospace Application(BioSpace)”(Contract No.4000135271/21/NL/SC).
文摘Cryogenic insulation material rigid polyurethane(PU)foams were developed using bio-based and recycled feedstock.Polyols obtained from tall oil fatty acids produced as a side stream of wood biomass pulping and recycled polyethylene terephthalate were used to develop rigid PU foam formulations.The 4th generation physical blowing agents with low global warming potential and low ozone depletion potential were used to develop rigid PU foam cryogenic insulation with excellent mechanical and thermal properties.Obtained rigid PU foams had a thermal conductivity coefficient as low as 0.0171 W/m·K and an apparent density of 37-40 kg/m^(3).The developed rigid PU foams had anisotropic compression strength properties,which were higher parallel to the foaming direction.Moreover,the compression strength was also influenced by the type of applied bio-based polyol.The bio-based polyols with higher OH group functionality delivered higher crosslinking density of polymer matrix;thus,the mechanical properties were also higher.The mechanical strength of the foams increased when materials were tested at liquid nitrogen temperature due to the stiffening of the polymer matrix.The thermal properties of the developed materials were determined using differential scanning calorimetry,dynamic mechanical analysis,and thermogravimetric analysis methods.Lastly,the developed rigid PU foams had good adhesion to the aluminium substrate before and after applying cyroshock and an excellent safety coefficient of 4-5.Rigid PU foams developed using Solstice LBA delivered adhesion strength of~0.5 MPa and may be considered for application as cryogenic insulation in the aerospace industry.
基金Supported by Project of National Natural Science Foundation(71273102)Fundamental Research Funds for the Central Universities(2012RW004)
文摘Using scientific metrological method,this paper analyzed all literature published by top 4 marketing periodicals( JCR,JM,JMR,and MS) in 2009- 2013. It is intended to find out hot issues and frontier topics of current marketing research through cluster analysis of key words,get to know cooperation and exchange of organizations through analysis of organization cooperative network,explore new topics of marketing researches with the aid of analysis of abrupt change words,and explore evolution path and development rules of marketing researches through co-citation network analysis.
