The assessment of Steam Generator (SG) tubes integrity is a challenging task with respect to the numerous degradation mechanisms observed worldwide and to the number of tubes in service. In the framework of extended cycles and optimization of their maintenance programs, utilities may revise their technical specifications for SG inspections. These revisions and other current SG safety related is...

Buoyancy artefacts (BAs) are used for the experimental determination of air density. The artefacts used for this comparison were manufactured at the PTB and the KRISS respectively and consist of one hollow cylinder and one bobbin. Mass differences of the PTB and the KRISS BAs in vacuum and in air are measured simultaneously by using the PTB prototype mass comparator. Results of the bilateral co...

Circumferential crack detection of small diameter tubes is a difficult problem to solve in eddy current testing. The three-dimensional simulation model established through electromagnetic field software analyze the distribution traditional bobbin probe and transverse cylindrical tubes. results show that circumferential has more marked disturbance generated by latter. Based on research, new type...

accumulations of intestinal contents above the lesion. A ring of mucous membrane is removed from the distal end, into which the proximal (with or without removal or roughening of its peritoneal coat) is passed, and there secured by suture, either looped or continuous, the whole procedure being accomplished without the aid of any mechanical support. The principle of the method would seem to be g...