Strong ground motions induce large dynamic stress changes that may disturb the magma chamber of a volcano, thus accelerating the volcanic activity. An underground nuclear explosion test near an active volcano constitutes a direct treat to the volcano. This study examined the dynamic stress changes of the magma chamber of Baekdusan (Changbaishan) that can be induced by hypothetical North Korean ...

Single-photon detectors operating on satellites for use in a quantum communications network can incur large dark-count-rate increases from the natural radiation environment of space. Displacement damage to material lattice detector ionizing result permanent dark-count increase detector. In this work, we analyze radiation-induced rate silicon single-photon avalanche diode onboard satellite at di...

RESUMEN El resumen será traducido al español por los editores. We describe a research program to improve the understanding of Type Ia Super-novae (SNe Ia) by modeling and observing near infrared (NIR) spectra of these events. The NIR between 0.9µ and 2.5µ is optimal for examining certain products of the SNe Ia explosion that may be blended or obscured in other spectral regions. NIR analysis wil...

An accumulation model of X-ray and debris in a high altitude nuclear explosion is built this work. Using the established model, we simulate energy accumulations four large scale experiments (i.e. Checkmate, Starfish, K3 K4) conducted by United States Soviet Union. The dynamics kinetic at 100–200 km analyzed. Our simulation results show that patch spreads relatively small spatial region has dens...