自主观测软件系统的设计与实现是天文望远镜自主观测的核心,近年来已经成为天文技术研究中的一个重要方向。在当前可用的自主观测系统中,远程望远镜系统第2版(Remote Telescope System 2nd version,RTS2)拥有较多优势从而成为国内天文...自主观测软件系统的设计与实现是天文望远镜自主观测的核心,近年来已经成为天文技术研究中的一个重要方向。在当前可用的自主观测系统中,远程望远镜系统第2版(Remote Telescope System 2nd version,RTS2)拥有较多优势从而成为国内天文技术界较为关注的系统之一。针对RTS2不提供远程访问控制功能的问题,深入分析RTS2中利用XMLRPC技术实现数据访问和功能调用的机制,实现了一个基于XML-RPC的望远镜自动控制终端系统原型,在不更改RTS2核心代码的基础上,通过其服务层提供的XML-RPC接口实现RTS2的应用扩展,并为后续工作中集成利用RTS2奠定了基础。展开更多
Pure K2Ti4O9 whiskers were prepared by KDC(Kneading-Drying-Calcination) method with TiO2 and K2CO3 as raw materials. The influences of TiO2/K2CO3 molar ratio(RT/K), calcination temperature(TC) and cooling proces...Pure K2Ti4O9 whiskers were prepared by KDC(Kneading-Drying-Calcination) method with TiO2 and K2CO3 as raw materials. The influences of TiO2/K2CO3 molar ratio(RT/K), calcination temperature(TC) and cooling process on phase composition and morphology of the whiskers were investigated by TG-DSC(thermo gravimetric-differential scanning calorimeter), XRD(X-ray diffraction), and SEM(scanning electron microscope). Pure K2Ti4O9 potassium titanate whiskers with large length-diameter ratio(r)(over 250) can be obtained at RT/K = 2.9 and TC = 950 ℃.展开更多
文摘自主观测软件系统的设计与实现是天文望远镜自主观测的核心,近年来已经成为天文技术研究中的一个重要方向。在当前可用的自主观测系统中,远程望远镜系统第2版(Remote Telescope System 2nd version,RTS2)拥有较多优势从而成为国内天文技术界较为关注的系统之一。针对RTS2不提供远程访问控制功能的问题,深入分析RTS2中利用XMLRPC技术实现数据访问和功能调用的机制,实现了一个基于XML-RPC的望远镜自动控制终端系统原型,在不更改RTS2核心代码的基础上,通过其服务层提供的XML-RPC接口实现RTS2的应用扩展,并为后续工作中集成利用RTS2奠定了基础。
基金Funded by the Natural Science Foundation Key Project of Hubei Province(No.2011CDA060)
文摘Pure K2Ti4O9 whiskers were prepared by KDC(Kneading-Drying-Calcination) method with TiO2 and K2CO3 as raw materials. The influences of TiO2/K2CO3 molar ratio(RT/K), calcination temperature(TC) and cooling process on phase composition and morphology of the whiskers were investigated by TG-DSC(thermo gravimetric-differential scanning calorimeter), XRD(X-ray diffraction), and SEM(scanning electron microscope). Pure K2Ti4O9 potassium titanate whiskers with large length-diameter ratio(r)(over 250) can be obtained at RT/K = 2.9 and TC = 950 ℃.