Seismology and engineering seismology have been dramatically affected by the emergence of high-performance computing. A recent report by the National Research Council's Committee on Seismology (NRC, 1996) is entirely devoted to surveying the status and potential of high-performance computing activities in this field. Here we summarize several applications and focus on one particular problem, th...

historical earthquakes play a notable role in engineering seismology. the historical kashan-sialk region, 3 km south of kashan, was surveyed in the viewpoint of historical earthquakes events. several devastating historical earthquakes, occurred in the bc time, identified based on archaeological studies and evidences gathered from field study. in this respect a variety of information, namely tim...

this study proposes a new linear approximation for solving the dynamic response equations of a rocking rigid block. linearization assumptions which have already been used by hounser and other researchers cannot be valid for all rocking blocks with various slenderness ratios and dimensions; hence, developing new methods which can result in better approximation of governing equations while keepin...

this study proposes a new linear approximation for solving the dynamic response equations of a rocking rigid block. linearization assumptions which have already been used by hounser and other researchers cannot be valid for all rocking blocks with various slenderness ratios and dimensions; hence, developing new methods which can result in better approximation of governing equations while keepin...

The COBE satellite, and the DMR experiment in particular, was extraordinarily successful. However, the DMR results were announced more than 6 years ago, during which time a great deal more has been learned about anisotropies in the Cosmic Microwave Background (CMB). We assess the current state of knowledge, and discuss where we might be going. The CMB experiments currently being designed and bu...

We surveyed 492 recent studies in the fields of ecology, evolution, and behavior (EEB) to evaluate potential for observer bias and the need for blind experimentation in each study. While 248 articles included experiments that could have been influenced by observer bias, only 13.3% of these articles indicated that experiments were blinded. The use of blind observation therefore was either grossl...

Asthma is a chronic inflammatory disease that imposes a substantial burden on patients, their families, and the community. Although many aspects of the pathogenesis of classical allergic asthma are well known by the scientific community, other points are not yet understood. Experimental asthma models, particularly murine models, have been used for over 100 years in order to better understand th...