This study evaluated the integration of artificial mangrove roots(AMRs)as a nature-inspired soft solution to counteract the adverse end effects of hard coastal infrastructure.Using unmanned aerial vehicle-LiDAR survey...This study evaluated the integration of artificial mangrove roots(AMRs)as a nature-inspired soft solution to counteract the adverse end effects of hard coastal infrastructure.Using unmanned aerial vehicle-LiDAR surveys and multitemporal shoreline analysis,we assessed AMR performance at 2 pilot sites:Nang Thong Beach along the Andaman Sea and Sam Roi Yot Beach on the Gulf of Thailand.Results indicate that AMRs enhance shoreline stability,dissipate wave energy,and promote sediment retention.At Sam Roi Yot Beach,AMR-protected areas experience substantially less shoreline retreat(≤3 m)than adjacent unprotected zones(7 to 10 m).展开更多
This paper investigates the enhancement of Langmuir and ion-acoustic wave and the acceleration of the electron in collisionless plasma,in the presence of an external transverse field.Based on hydrodynamic equations,an...This paper investigates the enhancement of Langmuir and ion-acoustic wave and the acceleration of the electron in collisionless plasma,in the presence of an external transverse field.Based on hydrodynamic equations,an equation formulizing the parametric instability was derived.Furthermore,the formula for ponderomotive force and the expression that describes the electron acceleration were obtained.The results show that Langmuir and ion-acoustic wave are enhanced and the charged particles can be accelerated by the coupling of wave-wave.In addition,it can be concluded that ponderomotive force,due to the coupling of the external field(pump)to the Langmuir wave(ion-acoustic wave),is the driving force to excite the parametric instability and comprises the high-and low-frequency components.展开更多
基金funded by the Thailand Science Research and Innovation Fund,Chulalongkorn University(Nos.47104186641/2566 and DIS_FF_68_110_2100_017)supported by a Research Collaborations Grant(ID:1203407805)under the International Science Partnerships Fund+2 种基金funded by the UK Department for Science,Innovation and Technology,in partnership with the British Councilthe support of the 60/40 Scholarship Program,Chulalongkorn University-NSTDA Doctoral Scholarship and the 90th Anniversary Chulalongkorn University Fund(Ratchadaphiseksomphot Endowment Fund,GCUGR11256-71115D and GCUGR1125671116D)supported by Chulalongkorn University.
文摘This study evaluated the integration of artificial mangrove roots(AMRs)as a nature-inspired soft solution to counteract the adverse end effects of hard coastal infrastructure.Using unmanned aerial vehicle-LiDAR surveys and multitemporal shoreline analysis,we assessed AMR performance at 2 pilot sites:Nang Thong Beach along the Andaman Sea and Sam Roi Yot Beach on the Gulf of Thailand.Results indicate that AMRs enhance shoreline stability,dissipate wave energy,and promote sediment retention.At Sam Roi Yot Beach,AMR-protected areas experience substantially less shoreline retreat(≤3 m)than adjacent unprotected zones(7 to 10 m).
基金supported by the National Natural Science Foundation of China (Grant No.40310223)the Fund of the National Key Laboratory of Electromagnetic Environment (No.9140C080401060C0805).
文摘This paper investigates the enhancement of Langmuir and ion-acoustic wave and the acceleration of the electron in collisionless plasma,in the presence of an external transverse field.Based on hydrodynamic equations,an equation formulizing the parametric instability was derived.Furthermore,the formula for ponderomotive force and the expression that describes the electron acceleration were obtained.The results show that Langmuir and ion-acoustic wave are enhanced and the charged particles can be accelerated by the coupling of wave-wave.In addition,it can be concluded that ponderomotive force,due to the coupling of the external field(pump)to the Langmuir wave(ion-acoustic wave),is the driving force to excite the parametric instability and comprises the high-and low-frequency components.
