Abstract: To evaluate train-running safety during seismicity on an entire railway line quantitatively, we should use risk analysis method. A lot of studies for seismic risk management were widely performed in various kinds of research fields. However, the study for fragility curve of train-running safety has not been conducted and its basic characteristics have not been obtained. Through this s...

UNLABELLED To examine the link between bone material properties and skeletal fragility, we analyzed the mechanical, histological, biochemical, and spectroscopic properties of bones from a murine model of skeletal fragility (SAMP6). Intact bones from SAMP6 mice are weak and brittle compared with SAMR1 controls, a defect attributed to reduced strength of the bone matrix. The matrix weakness is at...

BACKGROUND Bone fragility is increased in patients with type 2 diabetes mellitus (T2DM), but a useful method to estimate bone fragility in T2DM patients is lacking because bone mineral density alone is not sufficient to assess the risk of fracture. This study investigated the association between prevalent vertebral fractures (VFs) and the vertebral strength index estimated by the quantitative c...

Abstract With the rapid development of high-speed railways around globe, safety vehicles running on bridges during earthquakes has been paid more attention to. In design railway bridges, in addition to ensuring bridge structure earthquake, vehicle should also be ensured. Previous studies have focused detailed analysis derailment proposing complex numerical algorithms for wheel–rail contact as w...

The design of concrete elevated water tanks involves several kinds uncertainties. Traditionally, the these structures is based on a deterministic analysis. Partial safety factors prescribed in codes are applied to take into account uncertainties and ensure sufficiently safe design. However, this approach does not allow rational evaluation risk related structural failure consequently its reliabi...

BACKGROUND International osteoporosis foundation described severe or established osteoporosis as an osteoporotic individual with a fragility fracture. Orthopaedic surgeons frequently manage fractures, but we believe that large gaps are prevalent in the medical management of osteoporosis after fractures are fixed. AIM The aim of this analysis is to assess the investigations and gaps in the man...

buildings with high degree of importance such as hospitals, police stations, fire stations and other vital facilities play a crucial role in crisis and risk management of cities. therefore, special attention should be paid to design and construction of these buildings in order to maintain their performance during and after the earthquake. important buildings in iran is designed according to the...