The Daba Shan orocline is located at the northeastern margin of the Sichuan Basin and has been inferred as a foreland thrust-fold belt of the Qinling Orogen since the Late Triassic.A complete understanding of rock exh...The Daba Shan orocline is located at the northeastern margin of the Sichuan Basin and has been inferred as a foreland thrust-fold belt of the Qinling Orogen since the Late Triassic.A complete understanding of rock exhumation history is critical to elucidate how and when this typical orocline structure is developed.Detrital apatite fission-track dating of modern river sands is employed to reveal the regional exhumation history of the Daba Shan orocline.Four age peaks are identified and interpreted as the results of tectonic exhumation.Two older age peaks at ~150–140 and ~116–86 Ma are agreement with two main shortening deformation episodes of the Yanshanian Movement in the eastern China.The other two younger age peaks at ~69 and ~37 Ma support that the Daba Shan was reactivated by the Late Cretaceous to Cenozoic deformation which were likely related to the subduction of the Pacific Ocean and eastward growth of the Tibetan Plateau,respectively.It is worth noting that in contrast to the ~150–140 Ma rapid rock uplift and exhumation,the Middle Cretaceous exhumation(~116–86 Ma) shifted southward and continued to spread to southern tips of the Daba Shan.These exhumation variations in temporal and spatial allow a southward thrust deformation with piggyback style during the Yanshanian.展开更多
With the advent of 5G,multi-homing will be an increasingly common scenario,which is expected to increase transmission rates,improve transmission reliability,and reduce costs for users.However,the current routing metho...With the advent of 5G,multi-homing will be an increasingly common scenario,which is expected to increase transmission rates,improve transmission reliability,and reduce costs for users.However,the current routing methods are unable to fully utilize the resources of networks to achieve high-performance data transmission for multi-homed devices.In the current routing mechanism,there is only one destination address in the packet forwarded to the multi-homed host.Thus,the packet is difficult to adjust its path on the fly according to the status of the network to achieve better performance.In this paper,we present an efficient routing schema in multi-homing scenario based on protocol-oblivious forwarding(POF).In the proposed schema,the packet forwarded to the multi-homed host carries multiple destination addresses to obtain the ability of switching the transmission path;meanwhile,the router dynamically adjusts the path of the packet through the perception of the network status.Experimental results show that our schema could utilize the alternative paths properly and significantly improve the transmission efficiency.展开更多
基金funded by the National Natural Science Foundation of China (Nos.42172257,41672199,41421002)MOST Special Fund from the State Key Laboratory of Continental Dynamics,Northwest Universitythe Foundation of Shaanxi Educational Committee (No.16JK1753)。
文摘The Daba Shan orocline is located at the northeastern margin of the Sichuan Basin and has been inferred as a foreland thrust-fold belt of the Qinling Orogen since the Late Triassic.A complete understanding of rock exhumation history is critical to elucidate how and when this typical orocline structure is developed.Detrital apatite fission-track dating of modern river sands is employed to reveal the regional exhumation history of the Daba Shan orocline.Four age peaks are identified and interpreted as the results of tectonic exhumation.Two older age peaks at ~150–140 and ~116–86 Ma are agreement with two main shortening deformation episodes of the Yanshanian Movement in the eastern China.The other two younger age peaks at ~69 and ~37 Ma support that the Daba Shan was reactivated by the Late Cretaceous to Cenozoic deformation which were likely related to the subduction of the Pacific Ocean and eastward growth of the Tibetan Plateau,respectively.It is worth noting that in contrast to the ~150–140 Ma rapid rock uplift and exhumation,the Middle Cretaceous exhumation(~116–86 Ma) shifted southward and continued to spread to southern tips of the Daba Shan.These exhumation variations in temporal and spatial allow a southward thrust deformation with piggyback style during the Yanshanian.
基金This work was supported by the SEANET Technology Standardization Research and System Development(XDC02010701)Youth Innovation Promotion Association CAS(Y529111601).
文摘With the advent of 5G,multi-homing will be an increasingly common scenario,which is expected to increase transmission rates,improve transmission reliability,and reduce costs for users.However,the current routing methods are unable to fully utilize the resources of networks to achieve high-performance data transmission for multi-homed devices.In the current routing mechanism,there is only one destination address in the packet forwarded to the multi-homed host.Thus,the packet is difficult to adjust its path on the fly according to the status of the network to achieve better performance.In this paper,we present an efficient routing schema in multi-homing scenario based on protocol-oblivious forwarding(POF).In the proposed schema,the packet forwarded to the multi-homed host carries multiple destination addresses to obtain the ability of switching the transmission path;meanwhile,the router dynamically adjusts the path of the packet through the perception of the network status.Experimental results show that our schema could utilize the alternative paths properly and significantly improve the transmission efficiency.
