At the beginning of May,the fourteenth Art Beijing Exposition came to an end at National Agricultural Exhibition Center.This year,while continuing the five major sectors of contemporary art,classic art,design art,publ...At the beginning of May,the fourteenth Art Beijing Exposition came to an end at National Agricultural Exhibition Center.This year,while continuing the five major sectors of contemporary art,classic art,design art,public art and youth art,Art Beijing has added some special projects, like 'Charm of Printmaking','Image of Beijing','The Horizon,the World.' and 'Art Beijing Stores'.展开更多
The 2nd Annual Session of Energyand Information Committee,CSEE, chaired by Mr. Sun Jiaping was held inBeijing on Dec. 17-20, 1991. Vice MinisterShi Dazhen, Chief Engineer Mr. LuYanchang of the Ministry of Energy, Gene...The 2nd Annual Session of Energyand Information Committee,CSEE, chaired by Mr. Sun Jiaping was held inBeijing on Dec. 17-20, 1991. Vice MinisterShi Dazhen, Chief Engineer Mr. LuYanchang of the Ministry of Energy, GeneralSecretary Mr. Du Xingyou of CSEE and someother leading staff attended the meeting.Vice Minister Shi Dazhen expressed sincerehope in his address to the session that scien-tific and technical staff in energy fieldshould launch macro policy study morewidely and deeply under the guideline of so-展开更多
During April 20-22,2022,colleagues and friends gathered at the Institute of Pure&Applied Mathematics(IPAM),at the University of California at Los Angeles to celebrate Professor Stanley Osher's 8Oth birthday in...During April 20-22,2022,colleagues and friends gathered at the Institute of Pure&Applied Mathematics(IPAM),at the University of California at Los Angeles to celebrate Professor Stanley Osher's 8Oth birthday in a conference focusing on recent developments in"Optimization,Shape analysis,High-dimensional differential equations in science and Engineering,and machine learning Research(OSHER)"This conference hosted in-person talks by mathematicians,scientists,and industrial professionals worldwide.Those who could not attend extended their warm regards and expressed their appreciation for Professor Osher.展开更多
The 10th China Obesity Science Conference was held in Beijing from May 10th to 11th, 2024. Experts from authoritative institutions such as the National Health Commission, the Chinese Center for Disease Control and Pre...The 10th China Obesity Science Conference was held in Beijing from May 10th to 11th, 2024. Experts from authoritative institutions such as the National Health Commission, the Chinese Center for Disease Control and Prevention, and the China Institute of Sports Science gathered to discuss on the topics including obesity prevalence trends.展开更多
The‘Spring Cup’Table Tennisand Badminton International Championship Held by China Cultural Centerin Benin。On March 16,China Cultural Center in Benin,together with the Benin Badminton and Table Tennis Association,he...The‘Spring Cup’Table Tennisand Badminton International Championship Held by China Cultural Centerin Benin。On March 16,China Cultural Center in Benin,together with the Benin Badminton and Table Tennis Association,held the 2024"Spring Cup"Table Tennis and Badminton International Championship at the Palace of Arts,Entertainment and Sports in Cotonou.More than 100 athletes from China,Benin,Togo,India and other countries gathered to show their talents.展开更多
More than 200 scholars,researchers,former government o!cials and party leaders from over 50 countries gathered in the sprawling building of the Chinese Academy of History in Beijing on 20 March for the third Internati...More than 200 scholars,researchers,former government o!cials and party leaders from over 50 countries gathered in the sprawling building of the Chinese Academy of History in Beijing on 20 March for the third International Forum on Democracy:The Shared Human Values.The forum debated the concept of democracy,its trajectories and prospects,and,more importantly,how it can be made to work and deliver tangible results for di"erent countries.展开更多
On 5 March,national and global spotlight turned to the Great Hall of the People in Beijing where around 3,000 deputies gathered to open the second session of the 14th National People’s Congress(NPC).Over a span of se...On 5 March,national and global spotlight turned to the Great Hall of the People in Beijing where around 3,000 deputies gathered to open the second session of the 14th National People’s Congress(NPC).Over a span of seven days,the deputies,representing all of China’s ethnic groups,regions and sectors,discussed and decided on a range of issues critical for the country’s development.展开更多
During the production period of shale gas, proppant particles and rock debris are produced together,which will seriously erode the elbows of gathering pipelines. In response to this problem, this paper takes the elbow...During the production period of shale gas, proppant particles and rock debris are produced together,which will seriously erode the elbows of gathering pipelines. In response to this problem, this paper takes the elbow of the gathering pipeline in the Changning Shale Gas Field as an example to test the erosion rate and material removal mechanism of the test piece at different angles of the elbow through experiments and compares the four erosion models with the experimental results. Through analysis, it is found that the best prediction model for quartz sand-carbon steel erosion is the Oka model. Based on the Oka model, FLUENT software was used to simulate and analyze the law of erosion of the elbow of the gas gathering pipeline under different gas flow velocities, gas gathering pressure, particle size, length of L1,and bending directions of the elbow. And a spiral pipeline structure is proposed to reduce the erosion rate of the elbow under the same working conditions. The results show that this structure can reduce erosion by 34%.展开更多
The Olympic and Paralympic Games are a global celebration of athletic dedication and achievement,bringing together athletes and spectators from around the world.However,such large gatherings present public health chal...The Olympic and Paralympic Games are a global celebration of athletic dedication and achievement,bringing together athletes and spectators from around the world.However,such large gatherings present public health challenges for the Organizing Committees and local governments.As highlighted by the coronavirus disease 2019(COVID-19)pandemic,these events are associated with an increased risk of transmission of infections,which can significantly impact the health and well-being of athletes and attendees.Prioritizing the health and safety of athletes,officials and spectators is fundamental to ensure the successful hosting of the Games.Therefore,it is essential to design and implement comprehensive countermeasures to mitigate the risk of an infectious disease outbreak among participants but also to the residents of the host city.展开更多
We are delighted to serve as guest editors for this special issue in the Journal of Rock Mechanics and Geotechnical Engineering.The purpose of this special issue is dedicated to gathering the latest research work on M...We are delighted to serve as guest editors for this special issue in the Journal of Rock Mechanics and Geotechnical Engineering.The purpose of this special issue is dedicated to gathering the latest research work on Multiscale&Multifield Coupling in Geomechanics,where we delve into the intricate interplay of various fields and scales that govern the behavior of geomaterials.In total,30 manuscripts from USA,China,UK,Germany,Canada,India and United Arab Emirates are selected to be included in this issue.展开更多
As the main link of ground engineering,crude oil gathering and transportation systems require huge energy consumption and complex structures.It is necessary to establish an energy efficiency evaluation system for crud...As the main link of ground engineering,crude oil gathering and transportation systems require huge energy consumption and complex structures.It is necessary to establish an energy efficiency evaluation system for crude oil gathering and transportation systems and identify the energy efficiency gaps.In this paper,the energy efficiency evaluation system of the crude oil gathering and transportation system in an oilfield in western China is established.Combined with the big data analysis method,the GA-BP neural network is used to establish the energy efficiency index prediction model for crude oil gathering and transportation systems.The comprehensive energy consumption,gas consumption,power consumption,energy utilization rate,heat utilization rate,and power utilization rate of crude oil gathering and transportation systems are predicted.Considering the efficiency and unit consumption index of the crude oil gathering and transportation system,the energy efficiency evaluation system of the crude oil gathering and transportation system is established based on a game theory combined weighting method and TOPSIS evaluation method,and the subjective weight is determined by the triangular fuzzy analytic hierarchy process.The entropy weight method determines the objective weight,and the combined weight of game theory combines subjectivity with objectivity to comprehensively evaluate the comprehensive energy efficiency of crude oil gathering and transportation systems and their subsystems.Finally,the weak links in energy utilization are identified,and energy conservation and consumption reduction are improved.The above research provides technical support for the green,efficient and intelligent development of crude oil gathering and transportation systems.展开更多
The 13th Meeting of the China-Africa Think Tanks Forum took place in Dar es Salaam,Tanzania,on March 8,2024.Under the theme of“China-African Practice:Building a Community with a Shared Future”,the forum delved into ...The 13th Meeting of the China-Africa Think Tanks Forum took place in Dar es Salaam,Tanzania,on March 8,2024.Under the theme of“China-African Practice:Building a Community with a Shared Future”,the forum delved into the major concerns and strategic cooperation between China and Africa in the new era.It aimed to advance the implementation of various initiatives and accomplishments in China-Africa cooperation while also gathering insights for the upcoming session of the Forum on China-Africa Cooperation(FOCAC).展开更多
The National People’s Congress meets every year for about a week in March.But there is much more to China’s democracy.SOME 2,977 elected deputies will be attending the second plenary meeting of the 14th National Peo...The National People’s Congress meets every year for about a week in March.But there is much more to China’s democracy.SOME 2,977 elected deputies will be attending the second plenary meeting of the 14th National People’s Congress at the Great Hall of the People in Beijing in early March.This,the world’s largest legislative body,is the most striking manifestation of China’s governance system,whole-process people’s democracy.For outsiders,the gathering seems symbolic and ceremonial.However,the deliberation undertaken by the unpaid deputies in the week that they are together is merely the most visible element in a complex consultative system of government.展开更多
On April 23,China Cultural Center in Berlin,together with the Bureau of Culture and Tourism of Qingdao City and the People's Government of L aoshan District,Qingdao City,held Tea for Harmony Yaji Cultural Salon 20...On April 23,China Cultural Center in Berlin,together with the Bureau of Culture and Tourism of Qingdao City and the People's Government of L aoshan District,Qingdao City,held Tea for Harmony Yaji Cultural Salon 2024 Qingdao,presenting the guests with a gathering of men of letter integrating appreciating tea,watching exhibition,enjoying piano music,learning tea art and tasting refreshments.展开更多
In a secluded corner of a café,several young people sit around a small square table laden with an assortment of drinks and desserts.They take turns introducing themselves.The setup is reminiscent of speed dating ...In a secluded corner of a café,several young people sit around a small square table laden with an assortment of drinks and desserts.They take turns introducing themselves.The setup is reminiscent of speed dating or a team-building meeting,but the content of discussion is far from either.The unique event is known as Death Café.The purpose of the gathering is to discuss issues related to death.Participants express their thoughts,share experiences and rarely exposed emotions,and offer mutual support amidst a whirlwind of intense feelings.展开更多
From July 21 to 27,Vientiane,the capital of Laos,hosted the 57th ASEAN Foreign Ministers'Meeting(AMM)and related gatherings.Over an intense week,25 ministerial meetings took place,including core ASEAN discussions ...From July 21 to 27,Vientiane,the capital of Laos,hosted the 57th ASEAN Foreign Ministers'Meeting(AMM)and related gatherings.Over an intense week,25 ministerial meetings took place,including core ASEAN discussions and dialogues with 11 partner nations.The attendance of representatives from over 30 countries emphasized ASEAN's role as a crucial platform for multilateral engagement.展开更多
The tale of an inconspicuous inland city gathering a thriving cluster of dynamic tech-intensive industries.MODERNIZING the industrial system and developing new quality productive forces at a faster pace-this is one of...The tale of an inconspicuous inland city gathering a thriving cluster of dynamic tech-intensive industries.MODERNIZING the industrial system and developing new quality productive forces at a faster pace-this is one of China’s major tasks for 2024 as laid down in the Report on the Work of the Government.展开更多
China elevates its relationship with Africa to a new level and proposes concrete actions for development at Beijing summit of leaders.The 2024 Beijing Summit of the Forum on China-Africa Cooperation(FOCAC)marks anothe...China elevates its relationship with Africa to a new level and proposes concrete actions for development at Beijing summit of leaders.The 2024 Beijing Summit of the Forum on China-Africa Cooperation(FOCAC)marks another grand gathering of the China-Africa family,following the previous summits in 2006 in Beijing,2015 in Johannesburg,and 2018 in Beijing.It also stood out as the largest diplomatic event China has hosted in recent years.展开更多
主题语境:自然生态与环境篇幅:340词建议用时:6分钟。1 Turn on a light outside at night,and it won't be long before lots of insects start gathering around it.This behavior has led to a popular comparison for attracti...主题语境:自然生态与环境篇幅:340词建议用时:6分钟。1 Turn on a light outside at night,and it won't be long before lots of insects start gathering around it.This behavior has led to a popular comparison for attraction,“like a moth to a flame”(飞蛾扑火).However,accord-ing to a new study published in the journal Nature Communications,it turns out that insects aren't at-tracted to artificial lights,but rather confused by them.展开更多
Shanghai,2 August 2024.Including everything from organic buttons and floral prints,to temperature-regulating and weather-resistant fibres,the apparel value chain is as diverse as it is extensive.Buyers at trade fairs ...Shanghai,2 August 2024.Including everything from organic buttons and floral prints,to temperature-regulating and weather-resistant fibres,the apparel value chain is as diverse as it is extensive.Buyers at trade fairs with thousands of exhibitors can be hard pressed finding the fabrics they need,which is a key reason numerous suppliers at autumn's lntertextile Apparel will gather under the banners of specialised zones and pavilions.Taking place from 27-29 August at the National Exhibition and Convention Center (Shanghai),the fair will featu re eight product zones,including Accessories Vision,Functional Lab,and Verve for Design.Meanwhile,suppliers in eight country and region pavilions will showcase various innovations and high-quality textiles.Altogether the platform is set to welcome around 4,000 exhibitors from 25countries and regions.展开更多
文摘At the beginning of May,the fourteenth Art Beijing Exposition came to an end at National Agricultural Exhibition Center.This year,while continuing the five major sectors of contemporary art,classic art,design art,public art and youth art,Art Beijing has added some special projects, like 'Charm of Printmaking','Image of Beijing','The Horizon,the World.' and 'Art Beijing Stores'.
文摘The 2nd Annual Session of Energyand Information Committee,CSEE, chaired by Mr. Sun Jiaping was held inBeijing on Dec. 17-20, 1991. Vice MinisterShi Dazhen, Chief Engineer Mr. LuYanchang of the Ministry of Energy, GeneralSecretary Mr. Du Xingyou of CSEE and someother leading staff attended the meeting.Vice Minister Shi Dazhen expressed sincerehope in his address to the session that scien-tific and technical staff in energy fieldshould launch macro policy study morewidely and deeply under the guideline of so-
文摘During April 20-22,2022,colleagues and friends gathered at the Institute of Pure&Applied Mathematics(IPAM),at the University of California at Los Angeles to celebrate Professor Stanley Osher's 8Oth birthday in a conference focusing on recent developments in"Optimization,Shape analysis,High-dimensional differential equations in science and Engineering,and machine learning Research(OSHER)"This conference hosted in-person talks by mathematicians,scientists,and industrial professionals worldwide.Those who could not attend extended their warm regards and expressed their appreciation for Professor Osher.
文摘The 10th China Obesity Science Conference was held in Beijing from May 10th to 11th, 2024. Experts from authoritative institutions such as the National Health Commission, the Chinese Center for Disease Control and Prevention, and the China Institute of Sports Science gathered to discuss on the topics including obesity prevalence trends.
文摘The‘Spring Cup’Table Tennisand Badminton International Championship Held by China Cultural Centerin Benin。On March 16,China Cultural Center in Benin,together with the Benin Badminton and Table Tennis Association,held the 2024"Spring Cup"Table Tennis and Badminton International Championship at the Palace of Arts,Entertainment and Sports in Cotonou.More than 100 athletes from China,Benin,Togo,India and other countries gathered to show their talents.
文摘More than 200 scholars,researchers,former government o!cials and party leaders from over 50 countries gathered in the sprawling building of the Chinese Academy of History in Beijing on 20 March for the third International Forum on Democracy:The Shared Human Values.The forum debated the concept of democracy,its trajectories and prospects,and,more importantly,how it can be made to work and deliver tangible results for di"erent countries.
文摘On 5 March,national and global spotlight turned to the Great Hall of the People in Beijing where around 3,000 deputies gathered to open the second session of the 14th National People’s Congress(NPC).Over a span of seven days,the deputies,representing all of China’s ethnic groups,regions and sectors,discussed and decided on a range of issues critical for the country’s development.
基金supported by the Petrochina's “14th Five-Year plan” Project(2021DJ2804)Sichuan Natural Science Foundation(2023NSFSC0422)。
文摘During the production period of shale gas, proppant particles and rock debris are produced together,which will seriously erode the elbows of gathering pipelines. In response to this problem, this paper takes the elbow of the gathering pipeline in the Changning Shale Gas Field as an example to test the erosion rate and material removal mechanism of the test piece at different angles of the elbow through experiments and compares the four erosion models with the experimental results. Through analysis, it is found that the best prediction model for quartz sand-carbon steel erosion is the Oka model. Based on the Oka model, FLUENT software was used to simulate and analyze the law of erosion of the elbow of the gas gathering pipeline under different gas flow velocities, gas gathering pressure, particle size, length of L1,and bending directions of the elbow. And a spiral pipeline structure is proposed to reduce the erosion rate of the elbow under the same working conditions. The results show that this structure can reduce erosion by 34%.
文摘The Olympic and Paralympic Games are a global celebration of athletic dedication and achievement,bringing together athletes and spectators from around the world.However,such large gatherings present public health challenges for the Organizing Committees and local governments.As highlighted by the coronavirus disease 2019(COVID-19)pandemic,these events are associated with an increased risk of transmission of infections,which can significantly impact the health and well-being of athletes and attendees.Prioritizing the health and safety of athletes,officials and spectators is fundamental to ensure the successful hosting of the Games.Therefore,it is essential to design and implement comprehensive countermeasures to mitigate the risk of an infectious disease outbreak among participants but also to the residents of the host city.
文摘We are delighted to serve as guest editors for this special issue in the Journal of Rock Mechanics and Geotechnical Engineering.The purpose of this special issue is dedicated to gathering the latest research work on Multiscale&Multifield Coupling in Geomechanics,where we delve into the intricate interplay of various fields and scales that govern the behavior of geomaterials.In total,30 manuscripts from USA,China,UK,Germany,Canada,India and United Arab Emirates are selected to be included in this issue.
基金This work was financially supported by the National Natural Science Foundation of China(52074089 and 52104064)Natural Science Foundation of Heilongjiang Province of China(LH2019E019).
文摘As the main link of ground engineering,crude oil gathering and transportation systems require huge energy consumption and complex structures.It is necessary to establish an energy efficiency evaluation system for crude oil gathering and transportation systems and identify the energy efficiency gaps.In this paper,the energy efficiency evaluation system of the crude oil gathering and transportation system in an oilfield in western China is established.Combined with the big data analysis method,the GA-BP neural network is used to establish the energy efficiency index prediction model for crude oil gathering and transportation systems.The comprehensive energy consumption,gas consumption,power consumption,energy utilization rate,heat utilization rate,and power utilization rate of crude oil gathering and transportation systems are predicted.Considering the efficiency and unit consumption index of the crude oil gathering and transportation system,the energy efficiency evaluation system of the crude oil gathering and transportation system is established based on a game theory combined weighting method and TOPSIS evaluation method,and the subjective weight is determined by the triangular fuzzy analytic hierarchy process.The entropy weight method determines the objective weight,and the combined weight of game theory combines subjectivity with objectivity to comprehensively evaluate the comprehensive energy efficiency of crude oil gathering and transportation systems and their subsystems.Finally,the weak links in energy utilization are identified,and energy conservation and consumption reduction are improved.The above research provides technical support for the green,efficient and intelligent development of crude oil gathering and transportation systems.
文摘The 13th Meeting of the China-Africa Think Tanks Forum took place in Dar es Salaam,Tanzania,on March 8,2024.Under the theme of“China-African Practice:Building a Community with a Shared Future”,the forum delved into the major concerns and strategic cooperation between China and Africa in the new era.It aimed to advance the implementation of various initiatives and accomplishments in China-Africa cooperation while also gathering insights for the upcoming session of the Forum on China-Africa Cooperation(FOCAC).
文摘The National People’s Congress meets every year for about a week in March.But there is much more to China’s democracy.SOME 2,977 elected deputies will be attending the second plenary meeting of the 14th National People’s Congress at the Great Hall of the People in Beijing in early March.This,the world’s largest legislative body,is the most striking manifestation of China’s governance system,whole-process people’s democracy.For outsiders,the gathering seems symbolic and ceremonial.However,the deliberation undertaken by the unpaid deputies in the week that they are together is merely the most visible element in a complex consultative system of government.
文摘On April 23,China Cultural Center in Berlin,together with the Bureau of Culture and Tourism of Qingdao City and the People's Government of L aoshan District,Qingdao City,held Tea for Harmony Yaji Cultural Salon 2024 Qingdao,presenting the guests with a gathering of men of letter integrating appreciating tea,watching exhibition,enjoying piano music,learning tea art and tasting refreshments.
文摘In a secluded corner of a café,several young people sit around a small square table laden with an assortment of drinks and desserts.They take turns introducing themselves.The setup is reminiscent of speed dating or a team-building meeting,but the content of discussion is far from either.The unique event is known as Death Café.The purpose of the gathering is to discuss issues related to death.Participants express their thoughts,share experiences and rarely exposed emotions,and offer mutual support amidst a whirlwind of intense feelings.
文摘From July 21 to 27,Vientiane,the capital of Laos,hosted the 57th ASEAN Foreign Ministers'Meeting(AMM)and related gatherings.Over an intense week,25 ministerial meetings took place,including core ASEAN discussions and dialogues with 11 partner nations.The attendance of representatives from over 30 countries emphasized ASEAN's role as a crucial platform for multilateral engagement.
文摘The tale of an inconspicuous inland city gathering a thriving cluster of dynamic tech-intensive industries.MODERNIZING the industrial system and developing new quality productive forces at a faster pace-this is one of China’s major tasks for 2024 as laid down in the Report on the Work of the Government.
文摘China elevates its relationship with Africa to a new level and proposes concrete actions for development at Beijing summit of leaders.The 2024 Beijing Summit of the Forum on China-Africa Cooperation(FOCAC)marks another grand gathering of the China-Africa family,following the previous summits in 2006 in Beijing,2015 in Johannesburg,and 2018 in Beijing.It also stood out as the largest diplomatic event China has hosted in recent years.
文摘主题语境:自然生态与环境篇幅:340词建议用时:6分钟。1 Turn on a light outside at night,and it won't be long before lots of insects start gathering around it.This behavior has led to a popular comparison for attraction,“like a moth to a flame”(飞蛾扑火).However,accord-ing to a new study published in the journal Nature Communications,it turns out that insects aren't at-tracted to artificial lights,but rather confused by them.
文摘Shanghai,2 August 2024.Including everything from organic buttons and floral prints,to temperature-regulating and weather-resistant fibres,the apparel value chain is as diverse as it is extensive.Buyers at trade fairs with thousands of exhibitors can be hard pressed finding the fabrics they need,which is a key reason numerous suppliers at autumn's lntertextile Apparel will gather under the banners of specialised zones and pavilions.Taking place from 27-29 August at the National Exhibition and Convention Center (Shanghai),the fair will featu re eight product zones,including Accessories Vision,Functional Lab,and Verve for Design.Meanwhile,suppliers in eight country and region pavilions will showcase various innovations and high-quality textiles.Altogether the platform is set to welcome around 4,000 exhibitors from 25countries and regions.