To provide scientific management basis for the garden planning, project construction, maintenance, social service, this paper prompted that the urban gardening administration sectors need to construct gardening inform...To provide scientific management basis for the garden planning, project construction, maintenance, social service, this paper prompted that the urban gardening administration sectors need to construct gardening information management system. On the basis of fully requirements analysis of gardening sectors, this paper discussed the key technology for system construction. It also proposed to flexibly and smartly build up the system by using the secondary development design environment and running environment based on data center integration development platform. This system greatly helps the daily management and plays very important role in improving urban ecological environment and investment environment.展开更多
In a spin-driven multiferroic system,the magnetoelectric coupling has the form of effective dynamical Dzyaloshinskii–Moriya(DM)interaction.Experimentally,it is confirmed,for instance,for Cu_(2)OSeO_(3),that the DM in...In a spin-driven multiferroic system,the magnetoelectric coupling has the form of effective dynamical Dzyaloshinskii–Moriya(DM)interaction.Experimentally,it is confirmed,for instance,for Cu_(2)OSeO_(3),that the DM interaction has an essential role in the formation of skyrmions,which are topologically protected magnetic structures.Those skyrmions are very robust and can be manipulated through an electric field.The external electric field couples to the spin-driven ferroelectric polarization and the skyrmionic magnetic texture emerged due to the DM interaction.In this work,we demonstrate the effect of optical tweezing.For a particular configuration of the external electric fields it is possible to trap or release the skyrmions in a highly controlled manner.The functionality of the proposed tweezer is visualized by micromagnetic simulations and model analysis.展开更多
文摘To provide scientific management basis for the garden planning, project construction, maintenance, social service, this paper prompted that the urban gardening administration sectors need to construct gardening information management system. On the basis of fully requirements analysis of gardening sectors, this paper discussed the key technology for system construction. It also proposed to flexibly and smartly build up the system by using the secondary development design environment and running environment based on data center integration development platform. This system greatly helps the daily management and plays very important role in improving urban ecological environment and investment environment.
基金This work was supported by the National Science Center in Poland as a research Project No.DEC-2017/27/B/ST3/02881by the DFG through the SFB 762 and SFB-TRR227+5 种基金by the National Natural Science Foundation of China No.11704415,024410-7the Natural Science Foundation of Hunan Province of China No.2018JJ3629A.E.acknowledges financial support from DFG through priority program SPP1666(Topological Insulators)SFB-TRR227,and OeAD Grants Nos.HR 07/2018 and PL 03/2018This work was supported by Shota Rustaveli National Science Foundation of Georgia(SRNSFG)[Grant No.FR-19-4049]Open access funding provided by Projekt DEAL.
文摘In a spin-driven multiferroic system,the magnetoelectric coupling has the form of effective dynamical Dzyaloshinskii–Moriya(DM)interaction.Experimentally,it is confirmed,for instance,for Cu_(2)OSeO_(3),that the DM interaction has an essential role in the formation of skyrmions,which are topologically protected magnetic structures.Those skyrmions are very robust and can be manipulated through an electric field.The external electric field couples to the spin-driven ferroelectric polarization and the skyrmionic magnetic texture emerged due to the DM interaction.In this work,we demonstrate the effect of optical tweezing.For a particular configuration of the external electric fields it is possible to trap or release the skyrmions in a highly controlled manner.The functionality of the proposed tweezer is visualized by micromagnetic simulations and model analysis.
