The global trade governance system is the institutional safeguard for maintaining the operation of world trade. It consists of governance entities, platforms and rules. Since the end of World War Ⅱ, the global trade ...The global trade governance system is the institutional safeguard for maintaining the operation of world trade. It consists of governance entities, platforms and rules. Since the end of World War Ⅱ, the global trade governance system has mainly referred to the multilateral trading system, with the General Agreement on Tariffs and Trade(GATT) and the World Trade Organization(WTO) serving as governance platforms.展开更多
The past years have witnessed a rapid development of DNA nanotechnology in nanomaterials science with a central focus on programmable material construction on the nanoscale. An efficient method is therefore highly des...The past years have witnessed a rapid development of DNA nanotechnology in nanomaterials science with a central focus on programmable material construction on the nanoscale. An efficient method is therefore highly desirable（but challenging） for analytical/preparative purification of DNA-conjugated nano-objects and their DNA-assemblies. In this regard, agarose gel electrophoresis, a traditional technique that has been invented for biomacromolecule separation, has found many innovative uses.This includes shape, size, charge, and ligand-valence separations of nanoparticle building blocks as well as monitoring a self-assembly process towards product identification and purification.展开更多
This paper analyzes the reliability of low voltage(LV)distribution system of the Sri Lankan power system.Performance of LV distribution systems where mainly domestic consumers depend on the individual components of th...This paper analyzes the reliability of low voltage(LV)distribution system of the Sri Lankan power system.Performance of LV distribution systems where mainly domestic consumers depend on the individual components of the system.Failure rates of elements of the system are calculated based on the historical data of the LV distribution system in a semi-urban area.Load point reliability indices are calculated using the analytical method.Consumer-oriented reliability parameters and energy not served,and its cost are determined.As a method of improvement of reliability,inclusion of fuses to the lateral feeders of the main feeder is proposed.Load point reliability indices,consumer-oriented reliability indices,and energy not served are calculated for the distribution system with fuses in lateral feeders.The results are compared with the reliability indices of the present system and analyzed.展开更多
The mechanisms for the regulation of synaptic dopamine （DA） include its release from presynaptic vesicles, its interaction with post-synaptic and pre-synaptic DA receptors, the reuptake of DA, via dopamine transport...The mechanisms for the regulation of synaptic dopamine （DA） include its release from presynaptic vesicles, its interaction with post-synaptic and pre-synaptic DA receptors, the reuptake of DA, via dopamine transporter （DAT）, the diffusion of DA and its metabolism by mono-amine oxidase （MAO） and cate- chol-O-methyl transferase （COMT）. DA controls complex and specialized functions including, movements, behavior, mood, perception, reward, and more recently, neurogenesis （Popolo et al., 2004; Reimer et al., 2013） and neuroregeneration （Hoglinger et al., 2004; Yang et al., 2008）. These functions are varied and of high fidelity. Movement, as an example, requires regulatory mechanisms for initiating, stopping, slowing-down speed- ing-up, changing directions, for governing the relentless urges to move in the young and sedentariness in the old as well as in motor-freezing, catalepsy, tremor and stereotypy.展开更多
This paper describes the basic structure and design and operation principle of the hydraulic drive and control system with two pumps and two circuits. The manipulator of the cone collecting robot designed is full driv...This paper describes the basic structure and design and operation principle of the hydraulic drive and control system with two pumps and two circuits. The manipulator of the cone collecting robot designed is full driven by hydraulic, which has five freedoms. The computer and electrohydraulic proportion velocity regulating valve were installed to realize open loop serve control for reducing cost and easy application.展开更多
Using arylhydrocarbon hydroxylase (AHH),ethoxyre-sorufin-O-deethylase,ethoxycoumarin-O-deethylase andaminopyrine-N-demethylase as marker enzymes and 3-methylcholanthrene (3-MC),-naphthof1avon,norepine-phrine (NE) and ...Using arylhydrocarbon hydroxylase (AHH),ethoxyre-sorufin-O-deethylase,ethoxycoumarin-O-deethylase andaminopyrine-N-demethylase as marker enzymes and 3-methylcholanthrene (3-MC),-naphthof1avon,norepine-phrine (NE) and phenobarbita1 as inducers,it is con-firmed that there are inducib1e Cyt P450 IA and展开更多
Take a digital libraries＇ service system for example, Objects Served Relationship Management （OSRM） in complex systems is proposed firstly as a new concept, and its connotation is explained. The significances and c...Take a digital libraries＇ service system for example, Objects Served Relationship Management （OSRM） in complex systems is proposed firstly as a new concept, and its connotation is explained. The significances and constructions of OSRM are analyzed. Both the fundamental facts and the important natures that the things which are interested by Objects Served （OS） （e. g. publishers and readers） and the server （e. g. digital libraries are the servers of publishers and readers） will not be the same completely although there are a lot of common benefits between OS and servers, are indeed clarified. The valuable information,which should be used by OS and their server, is often hidden behind them. Thus, how to find, manage and control the relationship among OS and their servers is very necessary and important for the common benefits among all of them.（e. g. the three dimensions of OSRM in digital library system and its overall framwork are proposed. The different strategies to different cases in the digital library＇s multidimensional framework are analyzed.）展开更多
Provincial agricultural research institutes are local agricultural research institutions.They are familiar with local agricultural and ru-ral conditions,and have advantages in scientific and technological achievements...Provincial agricultural research institutes are local agricultural research institutions.They are familiar with local agricultural and ru-ral conditions,and have advantages in scientific and technological achievements,technical reserves and the construction of scientific and tech-nological talent support systems.In the process of promoting the implementation of the rural revitalization strategy,all the responsibilities and obligations of the agricultural research institute are to identify the focus of scientific and technological support and talent support in rural revital-ization,and break the bottleneck and constraints of rural revitalization.By sorting out the current situation of agricultural science and technolo-gy experts serving the grassroots in the problem of talent support for rural revitalization,this paper analyzed the existing problems and put for-ward countermeasures and recommendations.展开更多
Five Features of China’s Reform on Administrative System China started with the great historic process of Reform and Open-up more than 30 years ago.Since them,reform on China’s administrative system has been under w...Five Features of China’s Reform on Administrative System China started with the great historic process of Reform and Open-up more than 30 years ago.Since them,reform on China’s administrative system has been under way.To sum up the course of 30 odd years,the features of China’s reform on administrative system are as follows.First,as China’s reform made its first breakthrough in rural areas,展开更多
AT the beginning of this year,people around the globe had a multitude of reasons to expect 2020 to be a super year for biodiversity and action on climate change emergencies.The year 2020 marks the 75th anniversary of ...AT the beginning of this year,people around the globe had a multitude of reasons to expect 2020 to be a super year for biodiversity and action on climate change emergencies.The year 2020 marks the 75th anniversary of the United Nations,the first UN summit on biodiversity at the level of heads of state and government,the 26th session of the Conference of the Parties of the UN Framework Convention on Climate Change(UNFCCC),and the second extraordinary meeting of the Conference of the Parties to the Convention on Biological Diversity(CBD).展开更多
China Petroleum Technology & Development Corporation (CPTDC), a wholly owned subsidiary company of China National Petroleum Corporation (CNPC), is China's largest multinational company specializing in the manu...China Petroleum Technology & Development Corporation (CPTDC), a wholly owned subsidiary company of China National Petroleum Corporation (CNPC), is China's largest multinational company specializing in the manufacturing and supply of petroleum and petrochemical material, equipment and technology.展开更多
BeiDou 3 preliminary system is completed to provide global services.China Satellite Navigation Office announced at a press conference held at the State Council Information Office on December 27 that the BeiDou 3 preli...BeiDou 3 preliminary system is completed to provide global services.China Satellite Navigation Office announced at a press conference held at the State Council Information Office on December 27 that the BeiDou 3 preliminary system was completed to provide global services,signifying that the coverage of the BeiDou system now extends to global coverage from regional.展开更多
Zambia takes measures to protect water resources and ensure ecological progress Africa is a haven of excellent natural conditions and is rich in freshwater bodies with great potential to revamp its socio-economic deve...Zambia takes measures to protect water resources and ensure ecological progress Africa is a haven of excellent natural conditions and is rich in freshwater bodies with great potential to revamp its socio-economic development.展开更多
Beijing is renowned for the breathtaking scenery of falling leaves,best seen in October when autumn arrives.Tom Jalio,a journalist with The Star in Kenya,was mesmerised by the view when he arrived in the city to atten...Beijing is renowned for the breathtaking scenery of falling leaves,best seen in October when autumn arrives.Tom Jalio,a journalist with The Star in Kenya,was mesmerised by the view when he arrived in the city to attend the 2023 Beijing International Media Forum.The forum discussed protecting and using world cultural heritage while fostering mutual learning among civilisations.展开更多
With the theme Connection for a Better Future,the fourth ASEAN-China Friendship and Cooperation Short Video Contest kicked o!in Beijing on 14 September both online and o#ine.The competition,co-sponsored by the Mission...With the theme Connection for a Better Future,the fourth ASEAN-China Friendship and Cooperation Short Video Contest kicked o!in Beijing on 14 September both online and o#ine.The competition,co-sponsored by the Mission of China to ASEAN,the Permanent Mission of Myanmar to ASEAN,ASEAN Secretariat,National Radio and Television Administration of China,China International Communications Group(CICG),the Department of Asian A!airs of the Ministry of Foreign A!展开更多
IT came as no surprise to the outside world when on November 15 the long- speculated lineup of the new leadership of the Communist Party of China （CPC） was announced. Xi Jinping, newly-elect- ed General Secretary of...IT came as no surprise to the outside world when on November 15 the long- speculated lineup of the new leadership of the Communist Party of China （CPC） was announced. Xi Jinping, newly-elect- ed General Secretary of the Party, and hi, colleagues made their debut before the press, one day after the conclusion of the 18th CPC National Congress.展开更多
Li Na’s historic French Open tennis win provides a boost for China’s sports market spending FOR the past few weeks,Mao Mao has been battling to make tennis court reservations.Mao,a sports fanatic,has gotten used to ...Li Na’s historic French Open tennis win provides a boost for China’s sports market spending FOR the past few weeks,Mao Mao has been battling to make tennis court reservations.Mao,a sports fanatic,has gotten used to spending two hours every weekend playing tennis with his friends. But Mao later found that the phone lines展开更多
"Parts of China have been suffering from sustained storms which have caused disasters in several provinces. Flood prevention authorities are under considerable stress. China Central Meteorological Observatory has..."Parts of China have been suffering from sustained storms which have caused disasters in several provinces. Flood prevention authorities are under considerable stress. China Central Meteorological Observatory has issued a blue alert and it is forecasted that a broader area of South China will be stricken by storms in the coming days." Weather forecast information broadcasted by China Central Television (CCTV) is important for people to plan their outgoing schedules and展开更多
A group of 16 humanoid robots,developed by Chinese startup Unitree Robotics,wore folkloric jackets and performed the traditional yangge dance with fluid handkerchief movements and precise formations at CCTV’s popular...A group of 16 humanoid robots,developed by Chinese startup Unitree Robotics,wore folkloric jackets and performed the traditional yangge dance with fluid handkerchief movements and precise formations at CCTV’s popular Spring Festival Gala.While showcasing a fusion of cutting-edge technology and traditional culture,the performance also brought China’s humanoid development into the spotlight.展开更多
文摘The global trade governance system is the institutional safeguard for maintaining the operation of world trade. It consists of governance entities, platforms and rules. Since the end of World War Ⅱ, the global trade governance system has mainly referred to the multilateral trading system, with the General Agreement on Tariffs and Trade(GATT) and the World Trade Organization(WTO) serving as governance platforms.
基金supported by NNSFC(Nos.21273214,21425521,21521001)Hefei Center for Physical Science and Technology(No2014FXCX010)Collaborative Innovation Center of Suzhou Nano Science and Technology
文摘The past years have witnessed a rapid development of DNA nanotechnology in nanomaterials science with a central focus on programmable material construction on the nanoscale. An efficient method is therefore highly desirable（but challenging） for analytical/preparative purification of DNA-conjugated nano-objects and their DNA-assemblies. In this regard, agarose gel electrophoresis, a traditional technique that has been invented for biomacromolecule separation, has found many innovative uses.This includes shape, size, charge, and ligand-valence separations of nanoparticle building blocks as well as monitoring a self-assembly process towards product identification and purification.
文摘This paper analyzes the reliability of low voltage(LV)distribution system of the Sri Lankan power system.Performance of LV distribution systems where mainly domestic consumers depend on the individual components of the system.Failure rates of elements of the system are calculated based on the historical data of the LV distribution system in a semi-urban area.Load point reliability indices are calculated using the analytical method.Consumer-oriented reliability parameters and energy not served,and its cost are determined.As a method of improvement of reliability,inclusion of fuses to the lateral feeders of the main feeder is proposed.Load point reliability indices,consumer-oriented reliability indices,and energy not served are calculated for the distribution system with fuses in lateral feeders.The results are compared with the reliability indices of the present system and analyzed.
文摘The mechanisms for the regulation of synaptic dopamine （DA） include its release from presynaptic vesicles, its interaction with post-synaptic and pre-synaptic DA receptors, the reuptake of DA, via dopamine transporter （DAT）, the diffusion of DA and its metabolism by mono-amine oxidase （MAO） and cate- chol-O-methyl transferase （COMT）. DA controls complex and specialized functions including, movements, behavior, mood, perception, reward, and more recently, neurogenesis （Popolo et al., 2004; Reimer et al., 2013） and neuroregeneration （Hoglinger et al., 2004; Yang et al., 2008）. These functions are varied and of high fidelity. Movement, as an example, requires regulatory mechanisms for initiating, stopping, slowing-down speed- ing-up, changing directions, for governing the relentless urges to move in the young and sedentariness in the old as well as in motor-freezing, catalepsy, tremor and stereotypy.
文摘This paper describes the basic structure and design and operation principle of the hydraulic drive and control system with two pumps and two circuits. The manipulator of the cone collecting robot designed is full driven by hydraulic, which has five freedoms. The computer and electrohydraulic proportion velocity regulating valve were installed to realize open loop serve control for reducing cost and easy application.
文摘Using arylhydrocarbon hydroxylase (AHH),ethoxyre-sorufin-O-deethylase,ethoxycoumarin-O-deethylase andaminopyrine-N-demethylase as marker enzymes and 3-methylcholanthrene (3-MC),-naphthof1avon,norepine-phrine (NE) and phenobarbita1 as inducers,it is con-firmed that there are inducib1e Cyt P450 IA and
文摘Take a digital libraries＇ service system for example, Objects Served Relationship Management （OSRM） in complex systems is proposed firstly as a new concept, and its connotation is explained. The significances and constructions of OSRM are analyzed. Both the fundamental facts and the important natures that the things which are interested by Objects Served （OS） （e. g. publishers and readers） and the server （e. g. digital libraries are the servers of publishers and readers） will not be the same completely although there are a lot of common benefits between OS and servers, are indeed clarified. The valuable information,which should be used by OS and their server, is often hidden behind them. Thus, how to find, manage and control the relationship among OS and their servers is very necessary and important for the common benefits among all of them.（e. g. the three dimensions of OSRM in digital library system and its overall framwork are proposed. The different strategies to different cases in the digital library＇s multidimensional framework are analyzed.）
基金Supported by the Program of Hebei Provincial Department of Human Resources and Social Security(JRSHZ-2023-02190).
文摘Provincial agricultural research institutes are local agricultural research institutions.They are familiar with local agricultural and ru-ral conditions,and have advantages in scientific and technological achievements,technical reserves and the construction of scientific and tech-nological talent support systems.In the process of promoting the implementation of the rural revitalization strategy,all the responsibilities and obligations of the agricultural research institute are to identify the focus of scientific and technological support and talent support in rural revital-ization,and break the bottleneck and constraints of rural revitalization.By sorting out the current situation of agricultural science and technolo-gy experts serving the grassroots in the problem of talent support for rural revitalization,this paper analyzed the existing problems and put for-ward countermeasures and recommendations.
文摘Five Features of China’s Reform on Administrative System China started with the great historic process of Reform and Open-up more than 30 years ago.Since them,reform on China’s administrative system has been under way.To sum up the course of 30 odd years,the features of China’s reform on administrative system are as follows.First,as China’s reform made its first breakthrough in rural areas,
文摘AT the beginning of this year,people around the globe had a multitude of reasons to expect 2020 to be a super year for biodiversity and action on climate change emergencies.The year 2020 marks the 75th anniversary of the United Nations,the first UN summit on biodiversity at the level of heads of state and government,the 26th session of the Conference of the Parties of the UN Framework Convention on Climate Change(UNFCCC),and the second extraordinary meeting of the Conference of the Parties to the Convention on Biological Diversity(CBD).
文摘China Petroleum Technology & Development Corporation (CPTDC), a wholly owned subsidiary company of China National Petroleum Corporation (CNPC), is China's largest multinational company specializing in the manufacturing and supply of petroleum and petrochemical material, equipment and technology.
文摘BeiDou 3 preliminary system is completed to provide global services.China Satellite Navigation Office announced at a press conference held at the State Council Information Office on December 27 that the BeiDou 3 preliminary system was completed to provide global services,signifying that the coverage of the BeiDou system now extends to global coverage from regional.
文摘Zambia takes measures to protect water resources and ensure ecological progress Africa is a haven of excellent natural conditions and is rich in freshwater bodies with great potential to revamp its socio-economic development.
文摘Beijing is renowned for the breathtaking scenery of falling leaves,best seen in October when autumn arrives.Tom Jalio,a journalist with The Star in Kenya,was mesmerised by the view when he arrived in the city to attend the 2023 Beijing International Media Forum.The forum discussed protecting and using world cultural heritage while fostering mutual learning among civilisations.
文摘With the theme Connection for a Better Future,the fourth ASEAN-China Friendship and Cooperation Short Video Contest kicked o!in Beijing on 14 September both online and o#ine.The competition,co-sponsored by the Mission of China to ASEAN,the Permanent Mission of Myanmar to ASEAN,ASEAN Secretariat,National Radio and Television Administration of China,China International Communications Group(CICG),the Department of Asian A!airs of the Ministry of Foreign A!
文摘IT came as no surprise to the outside world when on November 15 the long- speculated lineup of the new leadership of the Communist Party of China （CPC） was announced. Xi Jinping, newly-elect- ed General Secretary of the Party, and hi, colleagues made their debut before the press, one day after the conclusion of the 18th CPC National Congress.
文摘Li Na’s historic French Open tennis win provides a boost for China’s sports market spending FOR the past few weeks,Mao Mao has been battling to make tennis court reservations.Mao,a sports fanatic,has gotten used to spending two hours every weekend playing tennis with his friends. But Mao later found that the phone lines
文摘"Parts of China have been suffering from sustained storms which have caused disasters in several provinces. Flood prevention authorities are under considerable stress. China Central Meteorological Observatory has issued a blue alert and it is forecasted that a broader area of South China will be stricken by storms in the coming days." Weather forecast information broadcasted by China Central Television (CCTV) is important for people to plan their outgoing schedules and
文摘A group of 16 humanoid robots,developed by Chinese startup Unitree Robotics,wore folkloric jackets and performed the traditional yangge dance with fluid handkerchief movements and precise formations at CCTV’s popular Spring Festival Gala.While showcasing a fusion of cutting-edge technology and traditional culture,the performance also brought China’s humanoid development into the spotlight.
