A three-dimensional (3-D) modal analysis of an excited circular jet with Reynolds number of 9500 is conducted using proper orthogonal decomposition (POD) and a highspeed 3-D flow visualization system. Large sets of 3-D data are acquired in the near field before the end of the potential core and the transition region of the jet. POD is used to objectively characterize and classify the 3-D images...

Interaction between the midlatitude jet and gravity waves is examined, focusing on the nonnormality of the underlying linear dynamics, which plays an essential role in processing the wave activity and selecting structures that dominate wave momentum and energy transport. When the interior of a typical midlatitude jet is stochastically forced, waves with short horizontal wavelength are trapped i...

Self-excited oscillation pulse jet technology is widely used to clean sediment from oil storage tanks. Its successful application dependent on performance. As the cleaning requirements of industry increase, it necessary optimise structure self-excited pulsed nozzles (SOPJNs) and energy efficiencies. In this study, performance a SOPJN modelled analysed based computational fluid dynamics with con...

We review CP-violating effects in Z → 3 jet and Z → 4 jet decays, assuming the presence of CP-violating effective Zbb̄G and Zbb̄GG couplings. Longitudinal beam polarization is included in the studies. We propose a direct search for such CP-violating couplings by using various CP-odd observables. The data of a future linear collider running at the Z-resonance in the so-called GigaZ option should g...

This paper describes a microwave plasma jet in an argon atmosphere capable of generating filamentary streamer discharges within the entire quartz tube excited by surface waves of surface plasmon polaritons (SPPs) located in the tube. Several discharge streamers are immediately produced at the end of the copper wire when incident power reaches 20 W. From simulations, the wavelength of the surfac...

We present Hα and [O III] (5007 Å) images of the nebula powered by the jet of the black hole candidate and microquasar Cygnus X–1, observed with the 2.5m Isaac Newton Telescope (INT). The ring-like structure is luminous in [O III] and there exists a thin outer shell with a high [O III] / Hα flux ratio. This outer shell probably originates in the collisionally excited atoms close to the front of...

We report the first spectroscopic evidence of the jet-cooled p-chloro-α-methylbenzyl radical. The visible vibronic emission spectrum was recorded from the corona discharge of precursor p-chloro-ethylbenzene seeded in a large amount of inert carrier gas helium using a pinhole-type glass nozzle coupled with a technique of corona excited supersonic expansion. From the comparison with the vibronic ...

We review CP-violating effects in Z → 3 jet and Z → 4 jet decays, assuming the presence of CP-violating effective Zbb̄G and Zbb̄GG couplings. Longitudinal beam polarization is included in the studies. We propose a direct search for such CP-violating couplings by using various CP-odd observables. The data of a future linear collider running at the Z-resonance in the so-called GigaZ option should g...

We present high angular resolution (down to ∼ 1.5′′) interferometric maps of the CO J = 1→0 and J = 2→1 emission in the molecular outflow associated with the extremely young HH 211 jet, which is located in the IC 348 molecular complex. At velocities close to the systemic velocity, the CO emission traces the outflow cavities, while an extremely collimated, continuous jet-like structure is observ...

We have performed two-dimensional special-relativistic magnetohydrodynamic simulations of nonequilibrium over-pressured relativistic jets in cylindrical geometry. Multiple stationary recollimation shock and rarefaction structures are produced along the jet by the nonlinear interaction of shocks and rarefaction waves excited at the interface between the jet and the surrounding ambient medium. Al...