Contributions of the ORNL Piping Program to Nuclear Piping Design Codes and Standards

Piping hot

case that brought down South Korean stem cell researcher Hwang Woo Suk early this year”. The Los Angeles Times editorial page bemoaned that, “Science took an unnecessary leap forward Wednesday,” by attempting to find a technological fix to address political and religious objections to stem-cell research. “It’s an impressive advance, but scientists — and society — would be better off if they cou...

PIPing on lysosome tubes.

The role of lysosomes in important cellular responses, including phagocytosis, cell surface repair, and autophagy underlies a number of human diseases. Furthermore, the role of the lysosomal surface in TORC1 signalling has revealed unexpected properties of these organelles. In this issue, Sridhar et al (2013) uncover an important role for PI(4)P for lysosome function under normal nutrient condi...

Long-Term Hydrostatic Strength and Design of Thermoplastic Piping Compounds

There has been tremendous growth in the use of thermoplastic piping systems since their introduction more than 50 years ago. They bring a host of benefits in the form of long-term performance and reliability, ease of installation, and not being prone to corrosion and tuberculation. It was clear early on that thermoplastics could not be evaluated in the same way metallic components would be in s...

Evaluation of Performance Requirements for Seismic Design of Piping System

The cost of damage to the non-structural systems in critical facilities like nuclear power plants and hospitals can exceed 80% of the total cost of damage during an earthquake. The failure of nonstructural components, especially, piping systems led to leakage of water and subsequent shut-down of hospitals immediately after the event. Consequently, the evaluation of performance of these types of...

Thermal Stresses in Vessels, Piping, and Components