Scientific progress has greatly improved the technical level of China’s highway and waterway transport in the past ten years. In order to modernize communications and transport and raise competitive power of enterpri...Scientific progress has greatly improved the technical level of China’s highway and waterway transport in the past ten years. In order to modernize communications and transport and raise competitive power of enterprises as early as possible, the Ministry of Communications has decided to add more scientific investment, planning to double the annual expense on scientific investment during the Ninth Five-year Plan period compared to the Eighth Five-year展开更多
Scientific progress has greatly improved the technical level of China’shighway and waterway transport in the past decade.In order tomodernize communications and transport and raise competitivepower of enterprises as ...Scientific progress has greatly improved the technical level of China’shighway and waterway transport in the past decade.In order tomodernize communications and transport and raise competitivepower of enterprises as early as possible,the Ministry of Communicationshas decided to add more scientific investment,planning to double theannual expense on scientific investment during the Ninth Five-yearPlan period compared to the Eighth Five-year Plan period.Theministry will also conduct cooperative research,development,designand production with foreign scientific institutions and internationalorganizations.展开更多
In the first part of this Chapter the present state of knowledge from the observations of cosmic rays between 10^(13) and 10^(20) eV is summarized.This is not intended to be a complete review,but rather a broad overvi...In the first part of this Chapter the present state of knowledge from the observations of cosmic rays between 10^(13) and 10^(20) eV is summarized.This is not intended to be a complete review,but rather a broad overview of the relevant processes involving cosmic rays,including the astrophysical environments in which they take place.This overview mainly concerns experimental results and phenomenological aspects of their interpretation,therefore experiments’description is not given but references to the vast bibliography are provided in the text.Some attempt is made to address the most popular explanations offered by theoretical models.The second part is devoted to the description of the LHAASO performance and of its capability to provide a response to several open questions,still unanswered,concerning cosmic rays above 10^(13) eV,highlighting which major steps forward in this field could be taken from LHAASO observations.展开更多
文摘Scientific progress has greatly improved the technical level of China’s highway and waterway transport in the past ten years. In order to modernize communications and transport and raise competitive power of enterprises as early as possible, the Ministry of Communications has decided to add more scientific investment, planning to double the annual expense on scientific investment during the Ninth Five-year Plan period compared to the Eighth Five-year
文摘Scientific progress has greatly improved the technical level of China’shighway and waterway transport in the past decade.In order tomodernize communications and transport and raise competitivepower of enterprises as early as possible,the Ministry of Communicationshas decided to add more scientific investment,planning to double theannual expense on scientific investment during the Ninth Five-yearPlan period compared to the Eighth Five-year Plan period.Theministry will also conduct cooperative research,development,designand production with foreign scientific institutions and internationalorganizations.
基金Supported by the National Key R&D Program of China(2018YFA0404203)the International Scholarship Program of the MOST of China(G2021166002L)+1 种基金National Natural Science Foundation of China(NSFC)(12147208,U2031103,U1931204)the Science and Technology Department of Sichuan Province(2021YFSY0031)。
文摘In the first part of this Chapter the present state of knowledge from the observations of cosmic rays between 10^(13) and 10^(20) eV is summarized.This is not intended to be a complete review,but rather a broad overview of the relevant processes involving cosmic rays,including the astrophysical environments in which they take place.This overview mainly concerns experimental results and phenomenological aspects of their interpretation,therefore experiments’description is not given but references to the vast bibliography are provided in the text.Some attempt is made to address the most popular explanations offered by theoretical models.The second part is devoted to the description of the LHAASO performance and of its capability to provide a response to several open questions,still unanswered,concerning cosmic rays above 10^(13) eV,highlighting which major steps forward in this field could be taken from LHAASO observations.
