Efficient conversion of lignin to fine chemicals and biofuel become more and more attractive in biorefinery. In this work, we used a series of silica-alumina catalysts （i.e., SiO2-Al2O3, HY, Hβ, and HZSM-5） to degr...Efficient conversion of lignin to fine chemicals and biofuel become more and more attractive in biorefinery. In this work, we used a series of silica-alumina catalysts （i.e., SiO2-Al2O3, HY, Hβ, and HZSM-5） to degrade lignin into arenes and phenols. The relationship between the catalyst structure and lignin depolymerization performance was investigated. The results showed that both acidity and pore size of the catalyst could influence the conversion of lignin. In the volatilizable product, phenols were identified as the main phenolic monomers via gas chromatography-mass spectrometer. SIO2-Al2O3 was the most efficient catalyst, giving 90.96% degree of conversion, 12.91% yield of phenols, and 2.41% yield of arenes in ethanol at 280℃ for 4 h. The Fourier transform infrared spectroscopy and ^1H nuclear magnetic resonance spectroscopy analysis demonstrated that deoxygenation and alkylation occurred in this process. The effect of solvents was also investigated and the results showed that ethanol was the most efficient solvent.展开更多
What was special about August 8?It marked China's 12th national fitness day.In 2009,the Chinese Government designated August 8 as National Fitness Day,to mark the success of the Beijing Olympic Games(opened in Aug...What was special about August 8?It marked China's 12th national fitness day.In 2009,the Chinese Government designated August 8 as National Fitness Day,to mark the success of the Beijing Olympic Games(opened in August 8,2008),and to encourage more citizens to participate in sports and fitness activities.Across the nation,a sports craze has since seized people of various age groups.展开更多
Overseas Chinese are joining the global battle against the COVID-19(novel coronavirus disease)outbreak.When the epidemic erupted in China,they spared no effort in donating money and medical supplies to China.As the vi...Overseas Chinese are joining the global battle against the COVID-19(novel coronavirus disease)outbreak.When the epidemic erupted in China,they spared no effort in donating money and medical supplies to China.As the virus has spread throughout the world,they have kept busy helping each other by providing resources,collecting medical supplies for countries where they live,and transferring donations from China to local hospitals and communities.展开更多
This time,there are over 1,200 exhibitors participated in 2020 CITME+ITMA ASIA exhibition.As the 7th exhibition since two exhibition were jointly held,the exhibition covers 6 halls of the National Convention and Exhib...This time,there are over 1,200 exhibitors participated in 2020 CITME+ITMA ASIA exhibition.As the 7th exhibition since two exhibition were jointly held,the exhibition covers 6 halls of the National Convention and Exhibition Center(Shanghai),which is a huge event in the industry whether in content and influence.The organizers stated that it will strive to provide exhibitors and audiences with a high-quality and high-level global industry event,and make the equipment force illuminate the way forward for the industry.展开更多
Chinese President Xi Jinping on July 1 made an address at the meeting celebrating the 25th anniversary of Hong Kong's return to the motherland and the inaugural ceremony of the sixth-term government of the Hong Ko...Chinese President Xi Jinping on July 1 made an address at the meeting celebrating the 25th anniversary of Hong Kong's return to the motherland and the inaugural ceremony of the sixth-term government of the Hong Kong Special Administrative Region(HKSAR).展开更多
For more than a millennium,the area now known as Aba Tibetan and Qiang Autonomous Prefecture,in Southwest China's Sichuan Province,has been known for its exquisite,gaily colored Tibet-style embroideries.The items ...For more than a millennium,the area now known as Aba Tibetan and Qiang Autonomous Prefecture,in Southwest China's Sichuan Province,has been known for its exquisite,gaily colored Tibet-style embroideries.The items embody the unique culture and aesthetic value of the Tibetan people.To protect and promote the time-honored craft of making Tibet-style embroideries,China in 2011 added the craft to the list of the country's items of intangible cultural heritage.Given the tremendous efforts of the prefecture's government to promote the art form globally,many embroiderers'exquisite works have captured the hearts of numerous art enthusiasts-from around the world.展开更多
Do you believe a piece of paper can be carved into a finc work of art?If youtake the time to examime an exquisite paper sculpture,you will no doubt be impressed by the antist's skill.Paper sculptures integrate var...Do you believe a piece of paper can be carved into a finc work of art?If youtake the time to examime an exquisite paper sculpture,you will no doubt be impressed by the antist's skill.Paper sculptures integrate various art forms,such as paper-cuts,sculptures,traditional Chinese paintings,oil paintings and woodblock printings.Given the ingenious and creative designs of the items,many Chinese and foreign artists recognize the craft of making paper sculptures as an exquisite art form.展开更多
The magnificent jade culture has long been part of people's lives in China,which has long been a major producer of jadc.Chinesc jade,the history of which datcs back ncarly 8,0o0 years,occupies an important place i...The magnificent jade culture has long been part of people's lives in China,which has long been a major producer of jadc.Chinesc jade,the history of which datcs back ncarly 8,0o0 years,occupies an important place in the world's cultural treasure house.Yangzhou,a city in East China's Jiangsu Province,has long been known for the production of jade carvings.Today,many people,especially women,love to wear graceful,elegant and exquisite items of Yangzhou jade to express their desire for happiness.The art form was added to China's list of intangible cultural heritage in 2006.展开更多
Yangliuqing,a town with more than a 1,000-year history,and which lies in the western suburb of Tianjin Municipality(in North China),is renowned for gaily colored woodcut New Year's paintings.The paintings embody t...Yangliuqing,a town with more than a 1,000-year history,and which lies in the western suburb of Tianjin Municipality(in North China),is renowned for gaily colored woodcut New Year's paintings.The paintings embody the town's distinct cultural features,and especially its rich historical and cultural messages.Therefore,experts of Chinese folklore refer to the paintings as"living fossils of history"and an"encyclopedia of folk arts and customs."In 2006,China added the craft to the list of the country's items of intangible cultural heritage.展开更多
Foreign political party officials,diplomatic envoys and overseas Chinese have spoken highly of the Sixth Plenary Session of the 19th Central Committee of the Communist Party of China(CPC);they have hailed the session ...Foreign political party officials,diplomatic envoys and overseas Chinese have spoken highly of the Sixth Plenary Session of the 19th Central Committee of the Communist Party of China(CPC);they have hailed the session as a crucial meeting that links the past and the future,and guides Chinafs development at an important historical juncture.They have also agreed CPCfs major achievements and historical experience,during 100 years of endeavors,have provided important inspiration and a valuable reference for other countries and political parties.展开更多
T?GreenM is the keyword for the 2022 Beijing Winter Olympics.Adhering to the principle of green,low-carbon and sustainable development,Zhangjiakou,the city cohosting the 2022 Beijing Winter Olympics,is vowing to make ...T?GreenM is the keyword for the 2022 Beijing Winter Olympics.Adhering to the principle of green,low-carbon and sustainable development,Zhangjiakou,the city cohosting the 2022 Beijing Winter Olympics,is vowing to make the event as environmentally sustainable as possible,and is vowing to meet the goal of holding a carbon-neutral Olympics with sustainability.展开更多
This year's Spring Festival,or Chinese New Year,fell on February 1.Langzhong,in Southwest China’s Sichuan Province,has long been hailed as“the birthplace of Spring Festival culture.”Known for its unique and wel...This year's Spring Festival,or Chinese New Year,fell on February 1.Langzhong,in Southwest China’s Sichuan Province,has long been hailed as“the birthplace of Spring Festival culture.”Known for its unique and well-preserved Spring Festival customs,the ancient town has attracted countless visitors,who have wanted to experience the charm of Chinese New Year.展开更多
Fuzhou,a city in Southeast Chinafs Fujian Province,is renowned for its cork carvings.Craftspeople engrave various patterns(including animals,plants,flowers,scenes and/or buildings)on the bark of corks,which are import...Fuzhou,a city in Southeast Chinafs Fujian Province,is renowned for its cork carvings.Craftspeople engrave various patterns(including animals,plants,flowers,scenes and/or buildings)on the bark of corks,which are imported from Portugal,Spain or Arab states.If you take the time to examine the exquisite carving on the bark,you will no doubt be impressed by the artist's skill.There is little wonder,then,that many Chinese use"silent poems"and"three-dimensional paintings"as metaphors to describe the carvings.展开更多
The art of seal engraving is a cornerstone of China’s fine arts.The art of seal engraving requires a craftsman/craftswoman to have a high degree of virtuosity,since the artist works on a tiny surface area,where every...The art of seal engraving is a cornerstone of China’s fine arts.The art of seal engraving requires a craftsman/craftswoman to have a high degree of virtuosity,since the artist works on a tiny surface area,where every curve and thickness of line counts.In September 2009,the United Nations Educational,Scientific and Cultural Organization(UNESCO)added Chinafs seal-engraving art to the list of its items of intangible cultural heritage.展开更多
Women of China launched a new section,Olympic Journey,in the January edition to share stories about the country’s women ice and snow athletes.In this edition,we introduce our readers to Gu Ailing,or Eileen Gu,a talen...Women of China launched a new section,Olympic Journey,in the January edition to share stories about the country’s women ice and snow athletes.In this edition,we introduce our readers to Gu Ailing,or Eileen Gu,a talented freestyle skier.展开更多
Li Bai,a Chinese dance drama,made its global debut on overseas social media in March.It was the closing performance of China National Opera and Dance Drama Theaterfs online season.Li Bai has generated new admiration f...Li Bai,a Chinese dance drama,made its global debut on overseas social media in March.It was the closing performance of China National Opera and Dance Drama Theaterfs online season.Li Bai has generated new admiration for and discussion about the beauty of Chinese culture among art lovers around the world.展开更多
Women of China launched a new section,Olympic Journey,in the January edition to share stories about the country’s women ice and snow athletes.In this edition,we introduce our read ers to China’s national women’s cr...Women of China launched a new section,Olympic Journey,in the January edition to share stories about the country’s women ice and snow athletes.In this edition,we introduce our read ers to China’s national women’s cross-country skiing team.展开更多
To add to the festive atmosphere,communities in many regions of China hold lantern shows during Lantern Festival(15th day of the first lunar month,and the first full moon of the year).Given the ingenious designs and s...To add to the festive atmosphere,communities in many regions of China hold lantern shows during Lantern Festival(15th day of the first lunar month,and the first full moon of the year).Given the ingenious designs and superb work manship,lanterns made in Beijing have amazed people with their charm and unique artistic beauty during the past millennium.Chinese have long believed the lanterns are symbols of joy,hope and prosperity.In 2008,China added the craft(of making Beijing's palace lanterns)to the list of the country's items of intangible cultural heritage.展开更多
文摘Efficient conversion of lignin to fine chemicals and biofuel become more and more attractive in biorefinery. In this work, we used a series of silica-alumina catalysts （i.e., SiO2-Al2O3, HY, Hβ, and HZSM-5） to degrade lignin into arenes and phenols. The relationship between the catalyst structure and lignin depolymerization performance was investigated. The results showed that both acidity and pore size of the catalyst could influence the conversion of lignin. In the volatilizable product, phenols were identified as the main phenolic monomers via gas chromatography-mass spectrometer. SIO2-Al2O3 was the most efficient catalyst, giving 90.96% degree of conversion, 12.91% yield of phenols, and 2.41% yield of arenes in ethanol at 280℃ for 4 h. The Fourier transform infrared spectroscopy and ^1H nuclear magnetic resonance spectroscopy analysis demonstrated that deoxygenation and alkylation occurred in this process. The effect of solvents was also investigated and the results showed that ethanol was the most efficient solvent.
文摘What was special about August 8?It marked China's 12th national fitness day.In 2009,the Chinese Government designated August 8 as National Fitness Day,to mark the success of the Beijing Olympic Games(opened in August 8,2008),and to encourage more citizens to participate in sports and fitness activities.Across the nation,a sports craze has since seized people of various age groups.
文摘Overseas Chinese are joining the global battle against the COVID-19(novel coronavirus disease)outbreak.When the epidemic erupted in China,they spared no effort in donating money and medical supplies to China.As the virus has spread throughout the world,they have kept busy helping each other by providing resources,collecting medical supplies for countries where they live,and transferring donations from China to local hospitals and communities.
文摘This time,there are over 1,200 exhibitors participated in 2020 CITME+ITMA ASIA exhibition.As the 7th exhibition since two exhibition were jointly held,the exhibition covers 6 halls of the National Convention and Exhibition Center(Shanghai),which is a huge event in the industry whether in content and influence.The organizers stated that it will strive to provide exhibitors and audiences with a high-quality and high-level global industry event,and make the equipment force illuminate the way forward for the industry.
文摘Chinese President Xi Jinping on July 1 made an address at the meeting celebrating the 25th anniversary of Hong Kong's return to the motherland and the inaugural ceremony of the sixth-term government of the Hong Kong Special Administrative Region(HKSAR).
文摘For more than a millennium,the area now known as Aba Tibetan and Qiang Autonomous Prefecture,in Southwest China's Sichuan Province,has been known for its exquisite,gaily colored Tibet-style embroideries.The items embody the unique culture and aesthetic value of the Tibetan people.To protect and promote the time-honored craft of making Tibet-style embroideries,China in 2011 added the craft to the list of the country's items of intangible cultural heritage.Given the tremendous efforts of the prefecture's government to promote the art form globally,many embroiderers'exquisite works have captured the hearts of numerous art enthusiasts-from around the world.
文摘Do you believe a piece of paper can be carved into a finc work of art?If youtake the time to examime an exquisite paper sculpture,you will no doubt be impressed by the antist's skill.Paper sculptures integrate various art forms,such as paper-cuts,sculptures,traditional Chinese paintings,oil paintings and woodblock printings.Given the ingenious and creative designs of the items,many Chinese and foreign artists recognize the craft of making paper sculptures as an exquisite art form.
文摘The magnificent jade culture has long been part of people's lives in China,which has long been a major producer of jadc.Chinesc jade,the history of which datcs back ncarly 8,0o0 years,occupies an important place in the world's cultural treasure house.Yangzhou,a city in East China's Jiangsu Province,has long been known for the production of jade carvings.Today,many people,especially women,love to wear graceful,elegant and exquisite items of Yangzhou jade to express their desire for happiness.The art form was added to China's list of intangible cultural heritage in 2006.
文摘Yangliuqing,a town with more than a 1,000-year history,and which lies in the western suburb of Tianjin Municipality(in North China),is renowned for gaily colored woodcut New Year's paintings.The paintings embody the town's distinct cultural features,and especially its rich historical and cultural messages.Therefore,experts of Chinese folklore refer to the paintings as"living fossils of history"and an"encyclopedia of folk arts and customs."In 2006,China added the craft to the list of the country's items of intangible cultural heritage.
文摘Foreign political party officials,diplomatic envoys and overseas Chinese have spoken highly of the Sixth Plenary Session of the 19th Central Committee of the Communist Party of China(CPC);they have hailed the session as a crucial meeting that links the past and the future,and guides Chinafs development at an important historical juncture.They have also agreed CPCfs major achievements and historical experience,during 100 years of endeavors,have provided important inspiration and a valuable reference for other countries and political parties.
文摘T?GreenM is the keyword for the 2022 Beijing Winter Olympics.Adhering to the principle of green,low-carbon and sustainable development,Zhangjiakou,the city cohosting the 2022 Beijing Winter Olympics,is vowing to make the event as environmentally sustainable as possible,and is vowing to meet the goal of holding a carbon-neutral Olympics with sustainability.
文摘This year's Spring Festival,or Chinese New Year,fell on February 1.Langzhong,in Southwest China’s Sichuan Province,has long been hailed as“the birthplace of Spring Festival culture.”Known for its unique and well-preserved Spring Festival customs,the ancient town has attracted countless visitors,who have wanted to experience the charm of Chinese New Year.
文摘Fuzhou,a city in Southeast Chinafs Fujian Province,is renowned for its cork carvings.Craftspeople engrave various patterns(including animals,plants,flowers,scenes and/or buildings)on the bark of corks,which are imported from Portugal,Spain or Arab states.If you take the time to examine the exquisite carving on the bark,you will no doubt be impressed by the artist's skill.There is little wonder,then,that many Chinese use"silent poems"and"three-dimensional paintings"as metaphors to describe the carvings.
文摘The art of seal engraving is a cornerstone of China’s fine arts.The art of seal engraving requires a craftsman/craftswoman to have a high degree of virtuosity,since the artist works on a tiny surface area,where every curve and thickness of line counts.In September 2009,the United Nations Educational,Scientific and Cultural Organization(UNESCO)added Chinafs seal-engraving art to the list of its items of intangible cultural heritage.
文摘Women of China launched a new section,Olympic Journey,in the January edition to share stories about the country’s women ice and snow athletes.In this edition,we introduce our readers to Gu Ailing,or Eileen Gu,a talented freestyle skier.
文摘Li Bai,a Chinese dance drama,made its global debut on overseas social media in March.It was the closing performance of China National Opera and Dance Drama Theaterfs online season.Li Bai has generated new admiration for and discussion about the beauty of Chinese culture among art lovers around the world.
文摘Women of China launched a new section,Olympic Journey,in the January edition to share stories about the country’s women ice and snow athletes.In this edition,we introduce our read ers to China’s national women’s cross-country skiing team.
文摘To add to the festive atmosphere,communities in many regions of China hold lantern shows during Lantern Festival(15th day of the first lunar month,and the first full moon of the year).Given the ingenious designs and superb work manship,lanterns made in Beijing have amazed people with their charm and unique artistic beauty during the past millennium.Chinese have long believed the lanterns are symbols of joy,hope and prosperity.In 2008,China added the craft(of making Beijing's palace lanterns)to the list of the country's items of intangible cultural heritage.
