Solution-phase self-assembly of two-dimensional(2D)networks with a high degree of internal order and long-range periodicity is a great challenge.Herein,we report a rational design to improve 2D self-assembly in water ...Solution-phase self-assembly of two-dimensional(2D)networks with a high degree of internal order and long-range periodicity is a great challenge.Herein,we report a rational design to improve 2D self-assembly in water through amphiphilic modification of the building block.An amphiphilic tritopic molecule(1)is designed and synthesized by introducing three hydrophilic oligo(ethylene glycol)moieties and three hydrophobic hexyl chains.The assembly of 1 and cucurbit[8]uril(CB[8])leads to the formation of a Janus 2D supramolecular organic framework(SOF),which further creates unique bilayer supramolecular networks and exhibits an unprecedentedly high degree of internal order and long-range periodicity.In contrast,the assembly of a nonamphiphilic analog(2)with CB[8]only generates a 2D SOF with a lower degree of internal order,suggesting that the inherent amphiphilicity of 1 plays a crucial role in improving its 2D self-assembly in aqueous phase.展开更多
The ongoing U. S. -Iraq war is the focus of various governments, peoples and media of the world. Analyses can be made from different angles. I want to discuss the influence of the U. S. -Iraq war on current and future...The ongoing U. S. -Iraq war is the focus of various governments, peoples and media of the world. Analyses can be made from different angles. I want to discuss the influence of the U. S. -Iraq war on current and future world system and international system. The U. S. -Iraq war is not a war in a traditional sense, but the first comprehensive war in the new century, involving military, political,展开更多
The 20th century is a century when both intra-national order and internationalorder were frequently changing. The struggles have never stopped focusingon setting order. Today with the East-west cold war over for 10 ye...The 20th century is a century when both intra-national order and internationalorder were frequently changing. The struggles have never stopped focusingon setting order. Today with the East-west cold war over for 10 years, there arestill strong appeals for peace and stability, and demands for establishing a newinternational order. The War on Kosovo in the end of the 20th century is a sig-nificant attempt from the U. S. and other major Western powers to set up a newworld order without caring whether by means of force or even of war. This展开更多
The international order is built on the principles of sovereign equality,national interests,great powers and respect for human rights among others.International rivalry and cooperation have existed side by side over t...The international order is built on the principles of sovereign equality,national interests,great powers and respect for human rights among others.International rivalry and cooperation have existed side by side over the past few centuries,while the foundations of an international order have solidified.We are now seeing a transition in the international order that requires new innovative ways of thinking.China is seen as the key driver of these changes because of its unique status,pattern of growth and future potential.China should embrace this historic opportunity and take on its obligations to contribute to the birth of a new modern international order.展开更多
The international order and global system are undergoing complex and profound changes nowadays.Unparalleled transformations in the world,the speed at which they happen,and the course of history are unfolding in unprec...The international order and global system are undergoing complex and profound changes nowadays.Unparalleled transformations in the world,the speed at which they happen,and the course of history are unfolding in unprecedented ways,ushering in a new period of turbulence and transition.Geopolitical and geo-economic competition among major powers is intensifying;global economic growth remains sluggish;crises and conflicts continue to emerge;and both regional and global peace and security are repeatedly challenged.展开更多
Global South,representing the collective of emerging markets and developing countries,is becoming a pivotal force in reshaping the international order.It plays a vital role in driving global governance reforms with th...Global South,representing the collective of emerging markets and developing countries,is becoming a pivotal force in reshaping the international order.It plays a vital role in driving global governance reforms with the principle of fairness and equity.展开更多
At present,there is a deviation in the EU's perception of China,which argues that China's economic model has undermined the EU's economic competitiveness,challenged the Western-dominated international orde...At present,there is a deviation in the EU's perception of China,which argues that China's economic model has undermined the EU's economic competitiveness,challenged the Western-dominated international order,and weakened the EU's strategic position.Therefore,the EU has promoted the“Indo-Pacific Strategy”,strengthened transatlantic coordination on China policy,and rebalanced China-EU economic relations with a more confrontational stance.As the EU's China policy has become increasingly geopolitical,“security concerns”have further intensified the impact on China-EU relations.Simultaneously,economic ties between China and the EU have notably diminished,accompanied by a deepening ideological divide.However,there is a strong endogenous driving force for China-EU relations,which enjoy bright prospects of development,and both China and Europe are staunch defenders of multilateralism.The EU needs to cooperate with China to solve global challenges,and its transformation of China policy has constraints.展开更多
TheRussia-Ukrainecrisiswas araremilitary crisis between European powers after the end of the Cold War,which led to confrontation between Western countries and Russia.Such a crisis also triggered the extensive involvem...TheRussia-Ukrainecrisiswas araremilitary crisis between European powers after the end of the Cold War,which led to confrontation between Western countries and Russia.Such a crisis also triggered the extensive involvement of nonstate actors,such as international capital giants,small and micro technology enterprises,emerging international platforms,and multinational corporations.Nonstate actors play an important role in international politics.Benefiting from the development of globalization and the accelerated evolution of the digital age,nonstate actors have exerted a significant influence on the international pattern by intervening in the competition between countries,participating in the process of global governance,and influencing the thoughts of science and technology.These actors have become an important variable affecting the world.The rising role of nonstate actors has many implications for China to expand its strength and safeguard national interests and security.展开更多
The sensitivities of the normal modes arrival time to solitary internal waves （IWs） are analyzed by using the SW06 environments. Simulation results show that the arrival time of mode 1 is relatively stable. But, the...The sensitivities of the normal modes arrival time to solitary internal waves （IWs） are analyzed by using the SW06 environments. Simulation results show that the arrival time of mode 1 is relatively stable. But, there are some higher-order normal modes which arrive earlier than mode 1, and fluctuate with the appearance of solitary IWs. Explanation of the phenomenon is given based on ray theory. It is shown that, when thermocline falls down to some depths, those higher-order modes with a group of definite grazing angles mainly propagate above the thermocline and arrive earlier.展开更多
The world is undergoing profound changes unseen in a century.As the changes are accelerating,their impact is intensifying.International politics is experiencing a return to realism,and the rise of hegemonic power is a...The world is undergoing profound changes unseen in a century.As the changes are accelerating,their impact is intensifying.International politics is experiencing a return to realism,and the rise of hegemonic power is antagonizing global relations.Globalization has encountered setbacks,and world economic growth is contracting.The international order is tumbling and is facing reconstruction.Nontraditional security threats have become more diverse.Great power conflicts are looming large.The 20th National Congress of the Communist Party of China has drawn a magnificent blueprint for constructing Chinese-style modernization.China,a responsible power in its historic rise,will be a stabilizing force in a turbulent world and a constructive force for global transformation.China provides stability,positive energy,great global peace,and development opportunities.展开更多
The international situation is evolving more impressively than it has at any time since the end of the Cold War. Globalization has been in decline. Nations are scrambling to gain greater influence. The intemational st...The international situation is evolving more impressively than it has at any time since the end of the Cold War. Globalization has been in decline. Nations are scrambling to gain greater influence. The intemational strategic pattern is being adjusted. Many countries have problems with public management, and are faced with a new array of social trends and increasingly popular movements. The world is entering a new era full of chaos and anxiety. Mankind once again faces significant trade-offs and choices in peace and conflict, development and recession, openness and isolation, liberalism and conservatism. China strives to advocate win-win cooperation and lead the trend of reform and opening to maintain a favorable external environment despite world chaos, and enhance status and institutional fights in the international system. China＇s 30 years of development was successful in the process of integrating into the existing international system; China is a participant as well as a builder of the international system, rather than a challenger or a subversive. In the future, with a constructive attitude, China will promote the international system in a more reasonable direction together with international partners, in order to better safeguard world peace and security, and promote sustainable development throughout the world.展开更多
The COVID-19 pandemic can be compared to a world war that makes the existing international order unsustainable.The pandemic is interacting with global changes unseen in a century and exerting major impacts on internat...The COVID-19 pandemic can be compared to a world war that makes the existing international order unsustainable.The pandemic is interacting with global changes unseen in a century and exerting major impacts on international politics,world economy,major-country relations,the geostrategic landscape,global governance,and development models.In the next three to five years,the international landscape will be a chaotic situation,highlighting not poles but competing states and transformation,thus making it more difficult for major countries to cooperate while medium-sized and small states have to huddle for warmth and seek a way out within their respective regions.Although further observation is required during the ongoing pandemic and worldwide economic recession,some major trends in the world have emerged.A restart to China's international relations is called for.展开更多
The rise of emerging powers and their local political philosophies has brought about profound changes to the international structure on an ideological level. South Africa is the leading emerging power in Africa. As th...The rise of emerging powers and their local political philosophies has brought about profound changes to the international structure on an ideological level. South Africa is the leading emerging power in Africa. As the core political philosophy that South Africa has been constructing in recent years, Ubuntu attempts to transcend the Western liberal democratic discourse, the Western African discourse and the nation-state discourse, in an attempt to build cultural confidence with African characteristics and to increase the power of discourse in the international arena. The content within the political philosophy of Ubuntu and the concept of a community of a shared future for mankind have a lot in common, which indicates a trend of emerging powers trying to build local political philosophies to surpass the Western political discourse system and to enhance their soft power in global nolitics.展开更多
This year marks the 70 th anniversary of the anti-Fascist war, and the right to development is also born during the war. In other words, the right to development is a product of the struggle of developing countries to...This year marks the 70 th anniversary of the anti-Fascist war, and the right to development is also born during the war. In other words, the right to development is a product of the struggle of developing countries to break the old international order. Therefore, to study the right to development is of profound and realistic significance for human rights protection. The author will start from the meaning of the right to development, trace the course of its formation and evolution, and then by taking history as a mirror, discuss the realization and protection of the right to development, propose some relevant suggestions, so as to promote the development of a new international order and meet the new requirements of globalization.展开更多
During a media briefing in the lead-up to the 13th World Peace Forum in Beijing on June 26,Yan Xuetong,Honorary Dean of the Institute of International Relations at Beijing-based Tsinghua University,delivered a lecture...During a media briefing in the lead-up to the 13th World Peace Forum in Beijing on June 26,Yan Xuetong,Honorary Dean of the Institute of International Relations at Beijing-based Tsinghua University,delivered a lecture titled“Trump and the International Order.”展开更多
State governance and global governance are two intertwining aspects in the construction of world order. A peaceful, prosperous and equitable world order encompasses internal order of sovereign states and interaational...State governance and global governance are two intertwining aspects in the construction of world order. A peaceful, prosperous and equitable world order encompasses internal order of sovereign states and interaational order of the international systems. Effective state governance nurtures internal order of sovereign states, eschews internal disorder, and prevents the spillover of negative externality into the international systems. In this sense, state governance is the cornerstone for constructing world order. In the meantime, effective global governance constructs world order and assists sovereign states in constructing internal order. In the construction of world order, different actors in the international systems represented by sovereign states inter alia must cooperate with a view to dissolving conflicts of interests and policies among states, managing global public domain, responding to common challenges and sharing responsibilities in assisting internally disordered states to govern effectively. Since the reform and opening up, China has contributed its distinctive part to the construction of world order by means of responsible state governance and global partnership governance.展开更多
基金the National Science Fund for Distinguished Young Scholars of China(no.21725404)the Strategic Priority Research Program of the Chinese Academy of Sciences(grant no.XDB20000000)the Natural Science Foundation of Zhejiang Province(no.LY20B020005).
文摘Solution-phase self-assembly of two-dimensional(2D)networks with a high degree of internal order and long-range periodicity is a great challenge.Herein,we report a rational design to improve 2D self-assembly in water through amphiphilic modification of the building block.An amphiphilic tritopic molecule(1)is designed and synthesized by introducing three hydrophilic oligo(ethylene glycol)moieties and three hydrophobic hexyl chains.The assembly of 1 and cucurbit[8]uril(CB[8])leads to the formation of a Janus 2D supramolecular organic framework(SOF),which further creates unique bilayer supramolecular networks and exhibits an unprecedentedly high degree of internal order and long-range periodicity.In contrast,the assembly of a nonamphiphilic analog(2)with CB[8]only generates a 2D SOF with a lower degree of internal order,suggesting that the inherent amphiphilicity of 1 plays a crucial role in improving its 2D self-assembly in aqueous phase.
文摘The ongoing U. S. -Iraq war is the focus of various governments, peoples and media of the world. Analyses can be made from different angles. I want to discuss the influence of the U. S. -Iraq war on current and future world system and international system. The U. S. -Iraq war is not a war in a traditional sense, but the first comprehensive war in the new century, involving military, political,
文摘The 20th century is a century when both intra-national order and internationalorder were frequently changing. The struggles have never stopped focusingon setting order. Today with the East-west cold war over for 10 years, there arestill strong appeals for peace and stability, and demands for establishing a newinternational order. The War on Kosovo in the end of the 20th century is a sig-nificant attempt from the U. S. and other major Western powers to set up a newworld order without caring whether by means of force or even of war. This
文摘The international order is built on the principles of sovereign equality,national interests,great powers and respect for human rights among others.International rivalry and cooperation have existed side by side over the past few centuries,while the foundations of an international order have solidified.We are now seeing a transition in the international order that requires new innovative ways of thinking.China is seen as the key driver of these changes because of its unique status,pattern of growth and future potential.China should embrace this historic opportunity and take on its obligations to contribute to the birth of a new modern international order.
文摘The international order and global system are undergoing complex and profound changes nowadays.Unparalleled transformations in the world,the speed at which they happen,and the course of history are unfolding in unprecedented ways,ushering in a new period of turbulence and transition.Geopolitical and geo-economic competition among major powers is intensifying;global economic growth remains sluggish;crises and conflicts continue to emerge;and both regional and global peace and security are repeatedly challenged.
文摘Global South,representing the collective of emerging markets and developing countries,is becoming a pivotal force in reshaping the international order.It plays a vital role in driving global governance reforms with the principle of fairness and equity.
文摘At present,there is a deviation in the EU's perception of China,which argues that China's economic model has undermined the EU's economic competitiveness,challenged the Western-dominated international order,and weakened the EU's strategic position.Therefore,the EU has promoted the“Indo-Pacific Strategy”,strengthened transatlantic coordination on China policy,and rebalanced China-EU economic relations with a more confrontational stance.As the EU's China policy has become increasingly geopolitical,“security concerns”have further intensified the impact on China-EU relations.Simultaneously,economic ties between China and the EU have notably diminished,accompanied by a deepening ideological divide.However,there is a strong endogenous driving force for China-EU relations,which enjoy bright prospects of development,and both China and Europe are staunch defenders of multilateralism.The EU needs to cooperate with China to solve global challenges,and its transformation of China policy has constraints.
文摘TheRussia-Ukrainecrisiswas araremilitary crisis between European powers after the end of the Cold War,which led to confrontation between Western countries and Russia.Such a crisis also triggered the extensive involvement of nonstate actors,such as international capital giants,small and micro technology enterprises,emerging international platforms,and multinational corporations.Nonstate actors play an important role in international politics.Benefiting from the development of globalization and the accelerated evolution of the digital age,nonstate actors have exerted a significant influence on the international pattern by intervening in the competition between countries,participating in the process of global governance,and influencing the thoughts of science and technology.These actors have become an important variable affecting the world.The rising role of nonstate actors has many implications for China to expand its strength and safeguard national interests and security.
基金supported by the National Natural Science Foundation of China(11174312,11125420)the Office of Naval Research,USA
文摘The sensitivities of the normal modes arrival time to solitary internal waves （IWs） are analyzed by using the SW06 environments. Simulation results show that the arrival time of mode 1 is relatively stable. But, there are some higher-order normal modes which arrive earlier than mode 1, and fluctuate with the appearance of solitary IWs. Explanation of the phenomenon is given based on ray theory. It is shown that, when thermocline falls down to some depths, those higher-order modes with a group of definite grazing angles mainly propagate above the thermocline and arrive earlier.
文摘The world is undergoing profound changes unseen in a century.As the changes are accelerating,their impact is intensifying.International politics is experiencing a return to realism,and the rise of hegemonic power is antagonizing global relations.Globalization has encountered setbacks,and world economic growth is contracting.The international order is tumbling and is facing reconstruction.Nontraditional security threats have become more diverse.Great power conflicts are looming large.The 20th National Congress of the Communist Party of China has drawn a magnificent blueprint for constructing Chinese-style modernization.China,a responsible power in its historic rise,will be a stabilizing force in a turbulent world and a constructive force for global transformation.China provides stability,positive energy,great global peace,and development opportunities.
文摘The international situation is evolving more impressively than it has at any time since the end of the Cold War. Globalization has been in decline. Nations are scrambling to gain greater influence. The intemational strategic pattern is being adjusted. Many countries have problems with public management, and are faced with a new array of social trends and increasingly popular movements. The world is entering a new era full of chaos and anxiety. Mankind once again faces significant trade-offs and choices in peace and conflict, development and recession, openness and isolation, liberalism and conservatism. China strives to advocate win-win cooperation and lead the trend of reform and opening to maintain a favorable external environment despite world chaos, and enhance status and institutional fights in the international system. China＇s 30 years of development was successful in the process of integrating into the existing international system; China is a participant as well as a builder of the international system, rather than a challenger or a subversive. In the future, with a constructive attitude, China will promote the international system in a more reasonable direction together with international partners, in order to better safeguard world peace and security, and promote sustainable development throughout the world.
文摘The COVID-19 pandemic can be compared to a world war that makes the existing international order unsustainable.The pandemic is interacting with global changes unseen in a century and exerting major impacts on international politics,world economy,major-country relations,the geostrategic landscape,global governance,and development models.In the next three to five years,the international landscape will be a chaotic situation,highlighting not poles but competing states and transformation,thus making it more difficult for major countries to cooperate while medium-sized and small states have to huddle for warmth and seek a way out within their respective regions.Although further observation is required during the ongoing pandemic and worldwide economic recession,some major trends in the world have emerged.A restart to China's international relations is called for.
文摘The rise of emerging powers and their local political philosophies has brought about profound changes to the international structure on an ideological level. South Africa is the leading emerging power in Africa. As the core political philosophy that South Africa has been constructing in recent years, Ubuntu attempts to transcend the Western liberal democratic discourse, the Western African discourse and the nation-state discourse, in an attempt to build cultural confidence with African characteristics and to increase the power of discourse in the international arena. The content within the political philosophy of Ubuntu and the concept of a community of a shared future for mankind have a lot in common, which indicates a trend of emerging powers trying to build local political philosophies to surpass the Western political discourse system and to enhance their soft power in global nolitics.
文摘This year marks the 70 th anniversary of the anti-Fascist war, and the right to development is also born during the war. In other words, the right to development is a product of the struggle of developing countries to break the old international order. Therefore, to study the right to development is of profound and realistic significance for human rights protection. The author will start from the meaning of the right to development, trace the course of its formation and evolution, and then by taking history as a mirror, discuss the realization and protection of the right to development, propose some relevant suggestions, so as to promote the development of a new international order and meet the new requirements of globalization.
文摘During a media briefing in the lead-up to the 13th World Peace Forum in Beijing on June 26,Yan Xuetong,Honorary Dean of the Institute of International Relations at Beijing-based Tsinghua University,delivered a lecture titled“Trump and the International Order.”
文摘State governance and global governance are two intertwining aspects in the construction of world order. A peaceful, prosperous and equitable world order encompasses internal order of sovereign states and interaational order of the international systems. Effective state governance nurtures internal order of sovereign states, eschews internal disorder, and prevents the spillover of negative externality into the international systems. In this sense, state governance is the cornerstone for constructing world order. In the meantime, effective global governance constructs world order and assists sovereign states in constructing internal order. In the construction of world order, different actors in the international systems represented by sovereign states inter alia must cooperate with a view to dissolving conflicts of interests and policies among states, managing global public domain, responding to common challenges and sharing responsibilities in assisting internally disordered states to govern effectively. Since the reform and opening up, China has contributed its distinctive part to the construction of world order by means of responsible state governance and global partnership governance.
