A generation method for the rail random irregularity with arbitrary wavelength interval (WI) is developed, and its accuracy and efficiency are demonstrated. Then a moving wheel-rail-bridge interaction element is derived to establish the finite element equations of motion for the train-rail-bridge interaction system, and the flow chart of assembly and calculation for the system equations is give...

Contactless RF-based sensing techniques are emerging as a viable means for building gesture recognition systems. While promising, existing solutions have poor generalization ability when targeting new users, environments or device deployment. They also often require multiple pairs of transceivers and large number training samples each target domain. These limitations either lead to cross-domain...

Usually broadband wireless access networks are considered to be enterprise level networks providing us with more capacity as well as coverage. We have seen that in remote inaccessible areas wired networks are not at all cost effective. Wireless networking has offered us an alternative solution for such problem of information access. They have definitely changed the way people communicate and sh...

as a distinct socially constructed genre, wedding invitations (wis) offer a fruitful site for investigating how two areas of genre knowledge (i.e., form and content) change over time under the influence of sociocultural forces. through the examination of 100 iranian wis dating from 1970s to the present time, the study investigated the trajectories of change through time within the social semiot...

background susceptibility-weighted imaging (swi) is extremely sensitive in the detection of superparamagnetic iron oxide (spio) nanoparticle-labeled cells. however, no study has compared molecular imaging for stem cell detection using swi and other mri pulse sequences. objectives this study aims to assess the sensitivity of swi in detecting spio nanoparticle-labeled, human bone marrow-derived m...