On May 5th,the Civilisation Lecture was held in Sofia,Bulgaria,hosted by the Chinese Association for International Understanding(CAFIU)and China Today of Bulgaria,organised by the China Cultural Centre in Sofia and su...On May 5th,the Civilisation Lecture was held in Sofia,Bulgaria,hosted by the Chinese Association for International Understanding(CAFIU)and China Today of Bulgaria,organised by the China Cultural Centre in Sofia and supported by the Embassy of China in Bulgaria.Liu Hongcai,Vice-President of CAFIU and former Vice-Minister of the IDCPC,Wang Min,Chargéd'affaires of the Embassy of China in Bulgaria,and more than 50 guests from all walks of life in both countries attended the event.Bulgarian Vice-President lotova and Deputy Speaker Ganev sent written speeches to the event.展开更多
On April 18,the Chinese Association for International Understanding(CAFIU)held Civilisation Lecture at Huanglonghu(the Yellow Dragon Lake)Tea Culture Museum in Xiaogan,Hubei Province.
The printed circuit heat exchanger(PCHE) is receiving wide attention as a new kind of compact heat exchanger and is considered as a promising vaporizer in the LNG process. In this paper, a PCHE straight channel in the...The printed circuit heat exchanger(PCHE) is receiving wide attention as a new kind of compact heat exchanger and is considered as a promising vaporizer in the LNG process. In this paper, a PCHE straight channel in the length of 500 mm is established, with a semicircular cross section in a diameter of 1.2 mm.Numerical simulation is employed to investigate the flow and heat transfer performance of supercritical methane in the channel. The pseudo-boiling theory is adopted and the liquid-like, two-phase-like, and vapor-like regimes are divided for supercritical methane to analyze the heat transfer and flow features.The results are presented in micro segment to show the local convective heat transfer coefficient and pressure drop. It shows that the convective heat transfer coefficient in segments along the channel has a significant peak feature near the pseudo-critical point and a heat transfer deterioration when the average fluid temperature in the segment is higher than the pseudo-critical point. The reason is explained with the generation of vapor-like film near the channel wall that the peak feature related to a nucleateboiling-like state and heat transfer deterioration related to a film-boiling-like state. The effects of parameters, including mass flow rate, pressure, and wall heat flux on flow and heat transfer were analyzed.In calculating of the averaged heat transfer coefficient of the whole channel, the traditional method shows significant deviation and the micro segment weighted average method is adopted. The pressure drop can mainly be affected by the mass flux and pressure and little affected by the wall heat flux. The peak of the convective heat transfer coefficient can only form at high mass flux, low wall heat flux, and near critical pressure, in which condition the nucleate-boiling-like state is easier to appear. Moreover,heat transfer deterioration will always appear, since the supercritical flow will finally develop into a filmboiling-like state. So heat transfer deterioration should be taken seriously in the design and safe operation of vaporizer PCHE. The study of this work clarified the local heat transfer and flow feature of supercritical methane in microchannel and contributed to the deep understanding of supercritical methane flow of the vaporization process in PCHE.展开更多
The third session of the World Sinology Lecture co-organised by the Chinese Association for International Understanding and Beijing Language and Culture University (BLCU) was held in a hybrid form on March 17th in Bei...The third session of the World Sinology Lecture co-organised by the Chinese Association for International Understanding and Beijing Language and Culture University (BLCU) was held in a hybrid form on March 17th in Beijing,themed"The Communication and Mutual Learning among Civilisations in Promoting Human Progress".Chen Zhou,Vice Minister of the International Department of the CPC Central Committee,Sergey Manassarian.展开更多
DNA methylation has been extensively investigated in recent years,not least because of its known relationship with various diseases.Progress in analytical methods can greatly increase the relevance of DNA methylation ...DNA methylation has been extensively investigated in recent years,not least because of its known relationship with various diseases.Progress in analytical methods can greatly increase the relevance of DNA methylation studies to both clinical medicine and scientific research.Microflu-idic chips are excellent carriers for molecular analysis,and their use can provide improvements from multiple aspects.On-chip molecular analysis has received extensive attention owing to its advantages of portability,high throughput,low cost,and high efficiency.In recent years,the use of novel microfluidic chips for DNA methylation analysis has been widely reported and has shown obvious superiority to conventional methods.In this review,wefirst focus on DNA methylation and its applications.Then,we discuss advanced microfluidic-based methods for DNA methylation analysis and describe the great progress that has been made in recent years.Finally,we summarize the advantages that microfluidic technology brings to DNA methylation analysis and describe several challenges and perspectives for on-chip DNA methylation analysis.This review should help researchers improve their understanding and make progress in developing microfluidic-based methods for DNA methylation analysis.展开更多
On October 20,2023,the Chinese Association for International Understanding(CAFIU)held the opening ceremony and the first lecture of the Civilisation Lecture Series in Henan Museum.Ji Bingxuan,Vice-Chairperson of the S...On October 20,2023,the Chinese Association for International Understanding(CAFIU)held the opening ceremony and the first lecture of the Civilisation Lecture Series in Henan Museum.Ji Bingxuan,Vice-Chairperson of the Standing Committee of the 13th National People's Congress and President of CAFIU,attended the opening ceremony and delivered a speech.展开更多
CAFIU and the Ministry of Culture Affairs of Tunisia jointly hosted the LectureⅢof the Civilisation Lecture Series at the Centre for Arts, Culture and Letters on the afternoon of December 25.Ji Bingxuan, Vice-Chairpe...CAFIU and the Ministry of Culture Affairs of Tunisia jointly hosted the LectureⅢof the Civilisation Lecture Series at the Centre for Arts, Culture and Letters on the afternoon of December 25.Ji Bingxuan, Vice-Chairperson of the Standing Committee of the 13th National People’s Congress and President of CAFIU, and Baccouche,Director of the National Heritage Institute of Tunisia addressed the lecture respectively.展开更多
Wei Nanguang,a renowned art scholar in Suriname(Chinese Descent):Suriname can be regarded as a melting pot of ethnic groups,where different ethnic groups can coexist harmoniously.Exchanges and the blend of different c...Wei Nanguang,a renowned art scholar in Suriname(Chinese Descent):Suriname can be regarded as a melting pot of ethnic groups,where different ethnic groups can coexist harmoniously.Exchanges and the blend of different civilisations promote its economic and social development and prosperity.展开更多
On February 7th,the Second World Sinology Lecture themed Heritage Protection and Civilisation Inheritance co-hosted by the Chinese Association for International Understanding(CAFIU)and Beijing Language and Culture Uni...On February 7th,the Second World Sinology Lecture themed Heritage Protection and Civilisation Inheritance co-hosted by the Chinese Association for International Understanding(CAFIU)and Beijing Language and Culture University(BLCU)was successfully held in Qingdao World Sinology Centre.展开更多
On December 6th,2023,the Chinese Association for International Understanding(CAFIU)held Lecture II of the Civilisation Lecture Series in Paramaribo,the capital of Suriname.Ai Ping,Vice-President of CAFIU,delivered a k...On December 6th,2023,the Chinese Association for International Understanding(CAFIU)held Lecture II of the Civilisation Lecture Series in Paramaribo,the capital of Suriname.Ai Ping,Vice-President of CAFIU,delivered a keynote speech.Han Jing,the Chinese Ambassador to Suriname,delivered a speech.展开更多
文摘On May 5th,the Civilisation Lecture was held in Sofia,Bulgaria,hosted by the Chinese Association for International Understanding(CAFIU)and China Today of Bulgaria,organised by the China Cultural Centre in Sofia and supported by the Embassy of China in Bulgaria.Liu Hongcai,Vice-President of CAFIU and former Vice-Minister of the IDCPC,Wang Min,Chargéd'affaires of the Embassy of China in Bulgaria,and more than 50 guests from all walks of life in both countries attended the event.Bulgarian Vice-President lotova and Deputy Speaker Ganev sent written speeches to the event.
文摘On April 18,the Chinese Association for International Understanding(CAFIU)held Civilisation Lecture at Huanglonghu(the Yellow Dragon Lake)Tea Culture Museum in Xiaogan,Hubei Province.
基金provided by Science and Technology Development Project of Jilin Province(No.20230101338JC)。
文摘The printed circuit heat exchanger(PCHE) is receiving wide attention as a new kind of compact heat exchanger and is considered as a promising vaporizer in the LNG process. In this paper, a PCHE straight channel in the length of 500 mm is established, with a semicircular cross section in a diameter of 1.2 mm.Numerical simulation is employed to investigate the flow and heat transfer performance of supercritical methane in the channel. The pseudo-boiling theory is adopted and the liquid-like, two-phase-like, and vapor-like regimes are divided for supercritical methane to analyze the heat transfer and flow features.The results are presented in micro segment to show the local convective heat transfer coefficient and pressure drop. It shows that the convective heat transfer coefficient in segments along the channel has a significant peak feature near the pseudo-critical point and a heat transfer deterioration when the average fluid temperature in the segment is higher than the pseudo-critical point. The reason is explained with the generation of vapor-like film near the channel wall that the peak feature related to a nucleateboiling-like state and heat transfer deterioration related to a film-boiling-like state. The effects of parameters, including mass flow rate, pressure, and wall heat flux on flow and heat transfer were analyzed.In calculating of the averaged heat transfer coefficient of the whole channel, the traditional method shows significant deviation and the micro segment weighted average method is adopted. The pressure drop can mainly be affected by the mass flux and pressure and little affected by the wall heat flux. The peak of the convective heat transfer coefficient can only form at high mass flux, low wall heat flux, and near critical pressure, in which condition the nucleate-boiling-like state is easier to appear. Moreover,heat transfer deterioration will always appear, since the supercritical flow will finally develop into a filmboiling-like state. So heat transfer deterioration should be taken seriously in the design and safe operation of vaporizer PCHE. The study of this work clarified the local heat transfer and flow feature of supercritical methane in microchannel and contributed to the deep understanding of supercritical methane flow of the vaporization process in PCHE.
文摘The third session of the World Sinology Lecture co-organised by the Chinese Association for International Understanding and Beijing Language and Culture University (BLCU) was held in a hybrid form on March 17th in Beijing,themed"The Communication and Mutual Learning among Civilisations in Promoting Human Progress".Chen Zhou,Vice Minister of the International Department of the CPC Central Committee,Sergey Manassarian.
基金support from the National Key R&D Program of China(Grant No.2018YFE0118700)the National Natural Science Foundation of China(NSFC Grant No.62174119)+1 种基金the 111 Project(Grant No.B07014)the Foundation for Talent Scientists of Nanchang Institute for Microtechnology of Tianjin University.
文摘DNA methylation has been extensively investigated in recent years,not least because of its known relationship with various diseases.Progress in analytical methods can greatly increase the relevance of DNA methylation studies to both clinical medicine and scientific research.Microflu-idic chips are excellent carriers for molecular analysis,and their use can provide improvements from multiple aspects.On-chip molecular analysis has received extensive attention owing to its advantages of portability,high throughput,low cost,and high efficiency.In recent years,the use of novel microfluidic chips for DNA methylation analysis has been widely reported and has shown obvious superiority to conventional methods.In this review,wefirst focus on DNA methylation and its applications.Then,we discuss advanced microfluidic-based methods for DNA methylation analysis and describe the great progress that has been made in recent years.Finally,we summarize the advantages that microfluidic technology brings to DNA methylation analysis and describe several challenges and perspectives for on-chip DNA methylation analysis.This review should help researchers improve their understanding and make progress in developing microfluidic-based methods for DNA methylation analysis.
文摘On October 20,2023,the Chinese Association for International Understanding(CAFIU)held the opening ceremony and the first lecture of the Civilisation Lecture Series in Henan Museum.Ji Bingxuan,Vice-Chairperson of the Standing Committee of the 13th National People's Congress and President of CAFIU,attended the opening ceremony and delivered a speech.
文摘CAFIU and the Ministry of Culture Affairs of Tunisia jointly hosted the LectureⅢof the Civilisation Lecture Series at the Centre for Arts, Culture and Letters on the afternoon of December 25.Ji Bingxuan, Vice-Chairperson of the Standing Committee of the 13th National People’s Congress and President of CAFIU, and Baccouche,Director of the National Heritage Institute of Tunisia addressed the lecture respectively.
文摘Wei Nanguang,a renowned art scholar in Suriname(Chinese Descent):Suriname can be regarded as a melting pot of ethnic groups,where different ethnic groups can coexist harmoniously.Exchanges and the blend of different civilisations promote its economic and social development and prosperity.
文摘On February 7th,the Second World Sinology Lecture themed Heritage Protection and Civilisation Inheritance co-hosted by the Chinese Association for International Understanding(CAFIU)and Beijing Language and Culture University(BLCU)was successfully held in Qingdao World Sinology Centre.
文摘On December 6th,2023,the Chinese Association for International Understanding(CAFIU)held Lecture II of the Civilisation Lecture Series in Paramaribo,the capital of Suriname.Ai Ping,Vice-President of CAFIU,delivered a keynote speech.Han Jing,the Chinese Ambassador to Suriname,delivered a speech.
