To characterize the thermomechanical response, especially the superelastic behavior of NiTi shape-memory alloys (SMAs) at various temperatures and strain rates, we have performed a series of both quasi-static and dynamic uniaxial compression tests on cylindrical samples, using an Instron servohydraulic testing machine and UCSD’s enhanced Hopkinson technique. Strain rates from 10 /s to about 420...

We investigate a corona coupled with underlying disk through magnetic field and radiation field, and present emergent spectra. Due to buoyancy the magnetic flux loop emerges from the disk and reconnects with other loops in the corona, thereby releasing the magnetic energy to heat the coronal plasma. The energy is then radiated away through Compton scattering. By studying the energy balance in t...

owing to elastic and viscous characteristics embedded rubber compounds, the dissipated energy from periodic deformation is converted into heat generation and consequently, the tire may have different body temperatures for different operating conditions. in most performed investigations, just temperature distribution is considered and the mechanical behaviour of rubber parts which are highly tem...

[1] Dynamics of lightning channel corona sheath surrounding thin channel core is examined on the basis of three transmission-line-type models of the return stroke that specify different attenuation of longitudinal current with height. The corona sheath conductivity is estimated using measured radial electric field in the immediate vicinity of the lightning channel and measured channel base curr...

Rourkela and this work has not been submitted elsewhere for a degree. Communication Engineering for his constant motivation and support during the course of our work in the last one year. We truly appreciate and value his guidance and encouragement from the commencement to the end of this thesis. His knowledge and company at the time of crisis would be remembered lifelong. We would like to than...

In living cells, molecular motors convert chemical energy into mechanical work. Its thermodynamic energy efficiency, i.e. the ratio of output mechanical work to input chemical energy, is usually high. However, using two-state models, we found the motion of molecular motors is loosely coupled to the chemical cycle. Only part of the input energy can be converted into mechanical work. Others is di...