The high-intensity heavy-ion accelerator facility(HIAF)is under design at the Institute of Modern Physics(IMP)and will provide an intense ion beam for nuclear physics,atomic mass measurement research,and other applica...The high-intensity heavy-ion accelerator facility(HIAF)is under design at the Institute of Modern Physics(IMP)and will provide an intense ion beam for nuclear physics,atomic mass measurement research,and other applications.As the main ring of HIAF,the BRing accumulates beams to high intensity and accelerates them to high energy.To achieve high intensities up to 1×10^(11)(^(238)U^(34+)),the injection gain of the BRing must be as high as 88.However,multiple multiturn injection supported by the electron cooling system takes a long time,causing substantial beam loss under a strong space charge effect.Hence,a two-plane painting injection scheme is proposed for beam accumulation in the BRing.This scheme uses a tilted injection septum and horizontal and vertical bump magnets to paint the beam into horizontal and vertical phase space simultaneously.In this paper,the two-plane painting injection parameters are optimized,and the resulting injection process is simulated using the Objective Ring Beam Injection and Tracking(ORBIT)code.An injection gain of up to 110.3 with a loss rate of 2:3%is achieved,meeting the requirements of BRing.展开更多
China has made a remarkable progress in the overall improvement of children’s health.Infant mortality and under-five mortality rates in the country were down to 4.5 per 1,000 and 6.2 per 1,000 children,respectively,i...China has made a remarkable progress in the overall improvement of children’s health.Infant mortality and under-five mortality rates in the country were down to 4.5 per 1,000 and 6.2 per 1,000 children,respectively,in 2023,a decrease of 16.7 percent and 17.3 percent from 2020,according to the 2024 Blue Book of Children,a report on the development of children in China recently published by the China National Children’s Centre.These figures are among the best in the middle-and higher-income countries.However,there is also a worrying trend related to the health of Chinese children and adolescents:an increase in myopia and obesity.More attention is now being paid to these issues,a task that requires solid cooperation between various stakeholders.展开更多
对兼具艺术性和流行性的音乐剧经典唱段做艺术的分析和歌唱实践的探索,将有利于音乐剧的研习者从全剧唱段分布以及唱段歌唱实践这些新的视角去学习、创作和表演。以《悲惨世界》中的经典唱段Bring Him Home为例,对音乐剧唱段中的主要表...对兼具艺术性和流行性的音乐剧经典唱段做艺术的分析和歌唱实践的探索,将有利于音乐剧的研习者从全剧唱段分布以及唱段歌唱实践这些新的视角去学习、创作和表演。以《悲惨世界》中的经典唱段Bring Him Home为例,对音乐剧唱段中的主要表现手段进行了相关研究和思考。展开更多
A foil–microchannel plate(MCP)detector,which uses electrostatic lenses and possesses both good position and timing resolutions,has been designed and simulated for beam diagnostics and mass measurements at the next-ge...A foil–microchannel plate(MCP)detector,which uses electrostatic lenses and possesses both good position and timing resolutions,has been designed and simulated for beam diagnostics and mass measurements at the next-generation heavy-ion-beam facility HIAF in China.Characterized by low energy loss and good performances of timing and position measurements,it would be located at focal planes in fragment separator HFRS for position monitoring,beam turning,Bq measurement,and trajectory reconstruction.Moreover,it will benefit the building-up of a magnetic-rigidity–energy-loss–time-offlight(BqDETOF)method at HFRS for high-precision in-flight particle identification of radioactive isotope beams on an event-by-event basis.Most importantly,the detector can be utilized for in-ring TOF and position measurements,beam-line TOF measurements at two achromatic foci,and position measurements at a dispersive focus of HFRS,thus making it possible to use two complementary mass measurement methods[isochronous mass spectrometry at the storage ring SRing and magnetic-rigidity–time-of-flight(BqTOF)at the beam-line HFRS]in one single experimental run.展开更多
The research activities on warm dense matter driven by intense heavy ion beams at the new project High Intensity heavy-ion AcceleratorFacility (HIAF) are presented. The ion beam parameters and the simulated accessible...The research activities on warm dense matter driven by intense heavy ion beams at the new project High Intensity heavy-ion AcceleratorFacility (HIAF) are presented. The ion beam parameters and the simulated accessible state of matter at HIAF are introduced, respectively. Theprogresses of the developed diagnostics for warm dense matter research including high energy electron radiography, multiple-channel pyrometer,in-situ energy loss and charge state of ion detector are briefly introduced.展开更多
Distinguishing the meanings of near synonyms always seems to be a challenging task for Chinese EFL learners,as is the case with bring about and give rise to be exemplified in the paper.I will use a corpus approach to ...Distinguishing the meanings of near synonyms always seems to be a challenging task for Chinese EFL learners,as is the case with bring about and give rise to be exemplified in the paper.I will use a corpus approach to unveil some implied semantic patterns and pragmatic features of the two phrases,and generalize their semantic prosodies as used by native English speakers by analyzing what kinds of nouns tend to co-occur with them,and also discuss whether there is a transfer of negative semantic prosody from the word cause to the two phrases under discussion.展开更多
While in one hand, due to genetic alterations, lifestyle changes, infections or injuries, or sudden turn of life events, we get health problems, on the other, we have been endowed with enormous natural remedies to tak...While in one hand, due to genetic alterations, lifestyle changes, infections or injuries, or sudden turn of life events, we get health problems, on the other, we have been endowed with enormous natural remedies to take care our health. Cinnamon, the brown bark of cinna- mon tree, is one such natural product that has already been being used for centuries throughout the world as spice or flavoring agent. In addition, medieval physicians used cinnamon for medical purposes to treat a variety of disorders including arthritis, coughing, hoarseness, sore throats, etc. It was once so highly-prized that several wars were fought over it.展开更多
The Developmentalism of Human Rights provides a broader perspective for a comprehensive and profound understanding of the human rights implications of bringing the building of a moderately prosperous society in all re...The Developmentalism of Human Rights provides a broader perspective for a comprehensive and profound understanding of the human rights implications of bringing the building of a moderately prosperous society in all respects to a successful completion.From the perspective of the Developmentalism of Human Rights,bringing the building of a moderately prosperous society in all respects to a successful completion takes promoting the all-round development of human beings as the starting point and end point,which embodies the ultimate goal of human rights to guarantee everyone’s free,comprehensive and coordinated development;the specific goals and tasks set by bringing the building of a moderately prosperous society in all respects to a successful completion respond to the four means rights to subsistence,freedom,participation and equal protection.The realization of the goals and tasks of completing the process of building a moderately well-off society in all aspects marks a higher level of safeguarding the right to development,and also opens a new journey for all members of the society to develop freely,comprehensively and harmoniously.展开更多
Rapid development of information technology has enabled the IoT (Internet of Things) to enter people’s lives and start to make a difference in society.The IoT has contributed to manufacturing and day-to-day life,and ...Rapid development of information technology has enabled the IoT (Internet of Things) to enter people’s lives and start to make a difference in society.The IoT has contributed to manufacturing and day-to-day life,and has also created a large market space that spawns various other associated industries.展开更多
BORN in 1952,Rémy Aron,a renowned French artist,developed a passion for Chinese culture at a young age.He first traveled to China some 20 years ago and since then Aron has made frequent visits to the country.A Kn...BORN in 1952,Rémy Aron,a renowned French artist,developed a passion for Chinese culture at a young age.He first traveled to China some 20 years ago and since then Aron has made frequent visits to the country.A Knight of the Order of Arts and Letters,former president of the La Maison des artistes,president of the French Association of Plastic Arts(AFAP),and member-researcher of the China National Academy of Painting,Aron has participated in art exhibitions and organized en plein air painting events between China and France.In addition,he has been active in arranging exhibitions and seminars bringing together artists from China and France,all of which earned him the title of“messenger of Sino-French cultural exchanges.”展开更多
A large scale scienti c research platform, named the High Intensity heavy-ion Accelerator Facility (HIAF), was proposed in light of the trend and development in nuclear physics and the associated high energy heavy ion...A large scale scienti c research platform, named the High Intensity heavy-ion Accelerator Facility (HIAF), was proposed in light of the trend and development in nuclear physics and the associated high energy heavy ion research elds. HIAF is one of the 16 approved national projects for basic sciences and technologies as the 12th ve-year-plan in China; it will be a laboratory open to the outside world, similar to CSR which was built as the 9th ve-year-plan in China[1].展开更多
In recent years,China’s catering sector has experienced profound changes in terms of industrial scale and management level,showing a favorable development momentum with steadily expanding industrial scale,optimizing ...In recent years,China’s catering sector has experienced profound changes in terms of industrial scale and management level,showing a favorable development momentum with steadily expanding industrial scale,optimizing market structure,complete categories,various brands,more standardized industrial management and upgrading service quality.展开更多
Editorial note Scholars around the world are voicing their criticisms on China’s family planning policy,which,in their opinions,will lead to an unhealthy population structure.This article reviews the concepts of"...Editorial note Scholars around the world are voicing their criticisms on China’s family planning policy,which,in their opinions,will lead to an unhealthy population structure.This article reviews the concepts of"rich before old"and"negative demographic bonus",and concludes that with regards to some indicators such as dependency ratio and demographic bonus,there exists a discrepancy between calculations and reality.The author believes that China will continue to witness a surge of demographic bonus in the future.展开更多
In April,2019,the opening ceremony of the ChinaJapan Youth Exchange Promotion Year was held in Beijing.The two sides agreed to arrange for the exchange and visits of 30000 young people in the next five years.As one pa...In April,2019,the opening ceremony of the ChinaJapan Youth Exchange Promotion Year was held in Beijing.The two sides agreed to arrange for the exchange and visits of 30000 young people in the next five years.As one part of it,a 114-member youth delegation led by Yuki So,President of Shorinji Kempo Unity(SKU)from Japan,paid a friendly visit to Henan in August,2019.展开更多
E-commerce is transforming the global business landscape at an unprecedented speed,and successful e-commerce requires the ability to embrace change.Entrepreneurs working in e-commerce today—particularly the cross-bor...E-commerce is transforming the global business landscape at an unprecedented speed,and successful e-commerce requires the ability to embrace change.Entrepreneurs working in e-commerce today—particularly the cross-border variety—must master new business techniques along with time-tried precepts of international trade.The first e-commerce transaction展开更多
初中英语直接引语和间接引语语法知识部分提到,把直接引语改为间接引语时,如转述时地点发生了变化,动词come K改作go。如 Shesaid,“I will come this evening,”改为 She said that she would gothat evening.come与go的转换早已为人...初中英语直接引语和间接引语语法知识部分提到,把直接引语改为间接引语时,如转述时地点发生了变化,动词come K改作go。如 Shesaid,“I will come this evening,”改为 She said that she would gothat evening.come与go的转换早已为人们所了解,许多语法书上都陈述了这个条例。展开更多
基金supported by the National Natural Science Foundation of China(No.11505256)
文摘The high-intensity heavy-ion accelerator facility(HIAF)is under design at the Institute of Modern Physics(IMP)and will provide an intense ion beam for nuclear physics,atomic mass measurement research,and other applications.As the main ring of HIAF,the BRing accumulates beams to high intensity and accelerates them to high energy.To achieve high intensities up to 1×10^(11)(^(238)U^(34+)),the injection gain of the BRing must be as high as 88.However,multiple multiturn injection supported by the electron cooling system takes a long time,causing substantial beam loss under a strong space charge effect.Hence,a two-plane painting injection scheme is proposed for beam accumulation in the BRing.This scheme uses a tilted injection septum and horizontal and vertical bump magnets to paint the beam into horizontal and vertical phase space simultaneously.In this paper,the two-plane painting injection parameters are optimized,and the resulting injection process is simulated using the Objective Ring Beam Injection and Tracking(ORBIT)code.An injection gain of up to 110.3 with a loss rate of 2:3%is achieved,meeting the requirements of BRing.
文摘China has made a remarkable progress in the overall improvement of children’s health.Infant mortality and under-five mortality rates in the country were down to 4.5 per 1,000 and 6.2 per 1,000 children,respectively,in 2023,a decrease of 16.7 percent and 17.3 percent from 2020,according to the 2024 Blue Book of Children,a report on the development of children in China recently published by the China National Children’s Centre.These figures are among the best in the middle-and higher-income countries.However,there is also a worrying trend related to the health of Chinese children and adolescents:an increase in myopia and obesity.More attention is now being paid to these issues,a task that requires solid cooperation between various stakeholders.
基金supported by the National Natural Science Foundation of China(Nos.11605248,11605249,11605267,and 11805032.)
文摘A foil–microchannel plate(MCP)detector,which uses electrostatic lenses and possesses both good position and timing resolutions,has been designed and simulated for beam diagnostics and mass measurements at the next-generation heavy-ion-beam facility HIAF in China.Characterized by low energy loss and good performances of timing and position measurements,it would be located at focal planes in fragment separator HFRS for position monitoring,beam turning,Bq measurement,and trajectory reconstruction.Moreover,it will benefit the building-up of a magnetic-rigidity–energy-loss–time-offlight(BqDETOF)method at HFRS for high-precision in-flight particle identification of radioactive isotope beams on an event-by-event basis.Most importantly,the detector can be utilized for in-ring TOF and position measurements,beam-line TOF measurements at two achromatic foci,and position measurements at a dispersive focus of HFRS,thus making it possible to use two complementary mass measurement methods[isochronous mass spectrometry at the storage ring SRing and magnetic-rigidity–time-of-flight(BqTOF)at the beam-line HFRS]in one single experimental run.
基金This work was supported by the National Science Foun-dation of China(NSFC,Grant Nos.U1532263,11205225,11275241,11375034,11505248 and 11275238).
文摘The research activities on warm dense matter driven by intense heavy ion beams at the new project High Intensity heavy-ion AcceleratorFacility (HIAF) are presented. The ion beam parameters and the simulated accessible state of matter at HIAF are introduced, respectively. Theprogresses of the developed diagnostics for warm dense matter research including high energy electron radiography, multiple-channel pyrometer,in-situ energy loss and charge state of ion detector are briefly introduced.
文摘Distinguishing the meanings of near synonyms always seems to be a challenging task for Chinese EFL learners,as is the case with bring about and give rise to be exemplified in the paper.I will use a corpus approach to unveil some implied semantic patterns and pragmatic features of the two phrases,and generalize their semantic prosodies as used by native English speakers by analyzing what kinds of nouns tend to co-occur with them,and also discuss whether there is a transfer of negative semantic prosody from the word cause to the two phrases under discussion.
基金supported by grants from National Institutes of Health(AT6681 and NS83054)
文摘While in one hand, due to genetic alterations, lifestyle changes, infections or injuries, or sudden turn of life events, we get health problems, on the other, we have been endowed with enormous natural remedies to take care our health. Cinnamon, the brown bark of cinna- mon tree, is one such natural product that has already been being used for centuries throughout the world as spice or flavoring agent. In addition, medieval physicians used cinnamon for medical purposes to treat a variety of disorders including arthritis, coughing, hoarseness, sore throats, etc. It was once so highly-prized that several wars were fought over it.
基金the periodic achievement of the following projects the project of National Social Science Foundation of China—“Research on Grass-roots Political Stability and Risk Control”(Project No.19BZZ048)the 2019 project funded by the Special Funds for Basic Scientific Research Business of Central Universities–“Research on the Universal Periodic Review Mechanism of the United Nations Human Rights Council”(Project No.63192701)+1 种基金the project of the Fundamental Research Funds for the Central Universities—“Research on Human Rights Development in Developing Countries”(Project No.63182074)the project of the Fundamental Research Funds for the Central Universities—“Research on the Concept of Building a Community with a Shared Future for Human Beings and the Global Human Rights Governance”(Project No.18JJD810002)
文摘The Developmentalism of Human Rights provides a broader perspective for a comprehensive and profound understanding of the human rights implications of bringing the building of a moderately prosperous society in all respects to a successful completion.From the perspective of the Developmentalism of Human Rights,bringing the building of a moderately prosperous society in all respects to a successful completion takes promoting the all-round development of human beings as the starting point and end point,which embodies the ultimate goal of human rights to guarantee everyone’s free,comprehensive and coordinated development;the specific goals and tasks set by bringing the building of a moderately prosperous society in all respects to a successful completion respond to the four means rights to subsistence,freedom,participation and equal protection.The realization of the goals and tasks of completing the process of building a moderately well-off society in all aspects marks a higher level of safeguarding the right to development,and also opens a new journey for all members of the society to develop freely,comprehensively and harmoniously.
文摘Rapid development of information technology has enabled the IoT (Internet of Things) to enter people’s lives and start to make a difference in society.The IoT has contributed to manufacturing and day-to-day life,and has also created a large market space that spawns various other associated industries.
文摘BORN in 1952,Rémy Aron,a renowned French artist,developed a passion for Chinese culture at a young age.He first traveled to China some 20 years ago and since then Aron has made frequent visits to the country.A Knight of the Order of Arts and Letters,former president of the La Maison des artistes,president of the French Association of Plastic Arts(AFAP),and member-researcher of the China National Academy of Painting,Aron has participated in art exhibitions and organized en plein air painting events between China and France.In addition,he has been active in arranging exhibitions and seminars bringing together artists from China and France,all of which earned him the title of“messenger of Sino-French cultural exchanges.”
文摘A large scale scienti c research platform, named the High Intensity heavy-ion Accelerator Facility (HIAF), was proposed in light of the trend and development in nuclear physics and the associated high energy heavy ion research elds. HIAF is one of the 16 approved national projects for basic sciences and technologies as the 12th ve-year-plan in China; it will be a laboratory open to the outside world, similar to CSR which was built as the 9th ve-year-plan in China[1].
文摘In recent years,China’s catering sector has experienced profound changes in terms of industrial scale and management level,showing a favorable development momentum with steadily expanding industrial scale,optimizing market structure,complete categories,various brands,more standardized industrial management and upgrading service quality.
文摘Editorial note Scholars around the world are voicing their criticisms on China’s family planning policy,which,in their opinions,will lead to an unhealthy population structure.This article reviews the concepts of"rich before old"and"negative demographic bonus",and concludes that with regards to some indicators such as dependency ratio and demographic bonus,there exists a discrepancy between calculations and reality.The author believes that China will continue to witness a surge of demographic bonus in the future.
文摘In April,2019,the opening ceremony of the ChinaJapan Youth Exchange Promotion Year was held in Beijing.The two sides agreed to arrange for the exchange and visits of 30000 young people in the next five years.As one part of it,a 114-member youth delegation led by Yuki So,President of Shorinji Kempo Unity(SKU)from Japan,paid a friendly visit to Henan in August,2019.
文摘E-commerce is transforming the global business landscape at an unprecedented speed,and successful e-commerce requires the ability to embrace change.Entrepreneurs working in e-commerce today—particularly the cross-border variety—must master new business techniques along with time-tried precepts of international trade.The first e-commerce transaction
文摘初中英语直接引语和间接引语语法知识部分提到,把直接引语改为间接引语时,如转述时地点发生了变化,动词come K改作go。如 Shesaid,“I will come this evening,”改为 She said that she would gothat evening.come与go的转换早已为人们所了解,许多语法书上都陈述了这个条例。
