<正>Paper describes particularities of architecture of wide area telecommunications management network (TMN) and system(TMS) RomTMN HD that are developed by specialists from Technical university of Moldova and S...
详细信息
<正>Paper describes particularities of architecture of wide area telecommunications management network (TMN) and system(TMS) RomTMN HD that are developed by specialists from Technical university of Moldova and Systemcomputer *** Direction of Telecommunications of Romtelecom (Hunedoara County,Romania).Core modules of RomTMN HD are implemented on the base of original geoinformation model of telecommunications *** architecture of TMN and TMS is based on M series of ITU-T Recommendations and uses modern concepts of implementation of distributed objects management like DCOM - Distributed Component Object Model,WBEM - Web Based Enterprise Management and Geoinformation *** HD being automated and integrated management system is capable to improve all complex set of processes of coordination of resources necessary for supervision,monitor,projection,simulation,generation,implementation, analysis,measurement and test of telecommunications networks in order to warranty to end users high level of services,at adequate price and optimal distribution of capacities.
Erbium-doped barium titanate(BaTiO_(3):Er)xerogel film with a thickness of about 500 nm was formed on the porous strontium titanate(SrTiO_(3))xerogel film on Si substrate after annealing at 800°C or 900°*** elaborat...
详细信息
Erbium-doped barium titanate(BaTiO_(3):Er)xerogel film with a thickness of about 500 nm was formed on the porous strontium titanate(SrTiO_(3))xerogel film on Si substrate after annealing at 800°C or 900°*** elaborated structures show room tempera-ture upconversion luminescence under 980 nm excitation with the photoluminescence(PL)bands at 523,546,658,800 and 830 nm corresponding to^(2)H1_(1/2)→^(4)I_(15/2),^(4)S_(3/2)→^(4)I_(15/2),^(4)F_(9/2)→^(4)I_(15/2)and^(4)I_(9/2)→^(4)I_(15/2)transitions of trivalent *** and X-ray diffraction(XRD)analysis of BaTiO_(3):Er\porous SrTiO_(3)\Si structure showed the presence of perovskite *** excellent up-conversion optical performance will greatly broaden its applications in perovskite solar cells and high-end anti-counterfeiting technologies.
暂无评论