水利工程的安全运行关系重大,长期水下运行的水下结构安全性尤为重要。为了对北京市西郊蓄滞雨洪工程暗涵出口检修闸在不断流的情况下进行安全检测,采用水下机器人FIFISH PRO V6 PLUS进行水下无损检测。水下机器人检测已成为水下建筑物...水利工程的安全运行关系重大,长期水下运行的水下结构安全性尤为重要。为了对北京市西郊蓄滞雨洪工程暗涵出口检修闸在不断流的情况下进行安全检测,采用水下机器人FIFISH PRO V6 PLUS进行水下无损检测。水下机器人检测已成为水下建筑物检测方面最具潜力的方法,具有很大的发展空间。本次水下机器人检测取得了较好的检测结果,积累了水下检测的经验。通过和传统水下检测方法进行对比,验证了水下机器人检测的适用性及可靠性。展开更多
In this paper,the nanometer-sized(200 nm)quaternary rare-earth complex Eu(BA)(TTA)2phen was successfully prepared by using the method of optimizing chemical precipitation.The characterizations of these nanoparticles w...In this paper,the nanometer-sized(200 nm)quaternary rare-earth complex Eu(BA)(TTA)2phen was successfully prepared by using the method of optimizing chemical precipitation.The characterizations of these nanoparticles were performed by using elemental analysis,thermogravimetric analysis,infrared spectroscopy,fluorescence spectroscopy,transmission electron microscopy and luminescence quantum-yield.The results indicate that they are better than common ternary complexes at light-emitting performance,luminescence properties,thermal stability,uniformity and particle size;they can also be further mixed with a suitable polymer to form functional rare earth polymers.Compared to the common solid materials,the quaternary complex has better and unique characteristics such as nanoparticle size effect and surface effect.A foundation had been laid for the further expansion of its application in the field of light-emitting and magnetic materials.展开更多
文摘水利工程的安全运行关系重大,长期水下运行的水下结构安全性尤为重要。为了对北京市西郊蓄滞雨洪工程暗涵出口检修闸在不断流的情况下进行安全检测,采用水下机器人FIFISH PRO V6 PLUS进行水下无损检测。水下机器人检测已成为水下建筑物检测方面最具潜力的方法,具有很大的发展空间。本次水下机器人检测取得了较好的检测结果,积累了水下检测的经验。通过和传统水下检测方法进行对比,验证了水下机器人检测的适用性及可靠性。
基金supported by the Open Project of State Key Laboratory of Supramolecular Structure and Materials(sklssm201332)the "Chunlei" Project in Shandong University of Science and Technology(06540040701)
文摘In this paper,the nanometer-sized(200 nm)quaternary rare-earth complex Eu(BA)(TTA)2phen was successfully prepared by using the method of optimizing chemical precipitation.The characterizations of these nanoparticles were performed by using elemental analysis,thermogravimetric analysis,infrared spectroscopy,fluorescence spectroscopy,transmission electron microscopy and luminescence quantum-yield.The results indicate that they are better than common ternary complexes at light-emitting performance,luminescence properties,thermal stability,uniformity and particle size;they can also be further mixed with a suitable polymer to form functional rare earth polymers.Compared to the common solid materials,the quaternary complex has better and unique characteristics such as nanoparticle size effect and surface effect.A foundation had been laid for the further expansion of its application in the field of light-emitting and magnetic materials.
