Nuclear and Radiation Safety Center

Microbial Ethane and Propane Production and Ethanogenic Enrichment of Methanogens in Coastal Sediments

Abstract Ethane and propane are short‐chain alkanes that are ubiquitous in marine environments, while the biological formation of ethane and propane remains largely unconstrained in coastal subsurface sediments. Here, we detected nanomolar concentrations of ethane and propane alo...

Pull-Out Performance and Load Transfer Mechanism of Pressure-Type Rock Anchor with Grouted Interface

Pressure-type rock anchors transfer tendon force to the grouted body through an end bearing plate, placing the grout predominantly in compression; however, their load-transfer mechanisms and axisymmetric stress-field distributions under varying loads remain insufficiently underst...