Quality control of in-service inspection in nuclear island
During the refueling outages of PWRs, ISI in nuclear island will contribute to find the equipment degradation generated during its normal operation, which can lay a foundation for the safe operation of nuclear power plant. ISI of nuclear island equipment was carried out from two sides: implementation and management. A detailed process of nondestructive testing and quality control during the preparation stage, project implementation stage and postsession integration stage was presented in accordance with the project procedures. Main responsibilities of quality control personnel stand out in the whole process.
Study and Application of Information Management System for Government-Invested Construction Projects
Government-invested construction projects have their own characteristics, and effective management can be achieved only by adopting corresponding appropriate management approaches. The characteristics of government-invested construction project management and corresponding serious problems existed in present management are analyzed and summarized at first. Secondly, the countermeasures to above problems are put forward. Then, an information management system framework for government-invested project management is proposed on the basis of the foregoing work. This framework can realize the fusion of project information management system and E-government system and achieve the institutionalization, standardization, informatization and lifecycle management for government-invested project by means of multiple modernized information technologies and professional software. Finally, the development and application of the developed information system validate the effectiveness to promote the management level of government-invested construction project. The work involved in this paper can provide reference for the management of other similar construction projects.
Vertebral Fusion in Two Early Jurassic Sauropodomorph Dinosaurs from the Lufeng Formation of Yunnan, China
Here we describe two instances of pathological vertebral fusion in two genera of sauropodomorph dinosaurs from the Early Jurassic Lufeng Formation in Yunnan, China. The first is a specimen, of Lufengosaurus huenei with two fused cervical vertebrae, and the other is a specimen of the Lufeng basal sauropod, with two fused caudal vertebrae. Both pathologies are consistent with spondyloarthropathy and represent the earliest known occurrence of that disease in dinosaurs. The two specimens affirm that early dinosaurs suffered from the same bone diseases as living vertebrates. Spondyloarthropathy in these dinosaurs may have been induced by long-term mechanical stress, such as weight bearing, and/or limited motion at the joint that would otherwise have inhibited such remodeling. In both cases, surface remodeling suggests that the animals survived well beyond the initiation of spondyloarthropathy.