Mitochondrial dysfunction and reactive oxygen species have been implicated in the aging process as well as a wide range of hereditary and age-related diseases. Identifying primary events that result from acute oxidative stress may provide targets for therapeutic interventions that preclude aging. By using electron microscopy, we have discovered a striking initial pattern of degeneration of the ...

Diffuser augmented wind turbines (DAWTs) can increase mass flow through the rotor substantially, but have often failed to fulfill expectations. We address high-performance diffusers, and investigate the design requirements for a DAWT rotor to efficiently convert the available energy to shaft energy. Several factors can induce wake stall scenarios causing significant energy loss. The causality b...

In this paper, the non-reacting flow in a swirl burner is studied using large eddy simulation. The configuration consists of two unconfined coannular jets at a Reynolds number of 81,500. The flow is characterized by a Swirl number of 0.93. Two cases are studied in the paper differing with respect to the axial location of the inner pilot jet. It was observed in a companion experiment (Bender and...

Schlieren image velocimetry (SIV) is based on light deflection through flow heterogeneities and cross-correlations. This a low-cost relatively low complexity technique that allows measurement of the droplet velocity field in large region spray. A Z-type Toepler schlieren system with high-speed camera was used to determine mean vertical horizontal velocities, as well cone angles sprays produced ...

A widely distributed spray is an important feature for atomizer which required in various applications such as gas cooling, turbine combustion, and fluidized bed granulator. Pressure-swirl example of provides a wide angle through the swirling effect inside atomizer. One parameters affecting geometrical constant, K. Another parameter pressure-swirl discharge coefficient, Cd. Discharge coefficien...