The evolution of laboratory produced magnetic jets is followed numerically through three-dimensional, non-ideal magnetohydrodynamic simulations. The experiments are designed to study the interaction of a purely toroidal field with an extended plasma background medium. The system is observed to evolve into a structure consisting of an approximately cylindrical magnetic cavity with an embedded ma...

Recent observations have allowed the geometry and kinematics of the M87 jet to be tightly constrained. We combine these constraints with historical Very Long Baseline Interferometry (VLBI) results and the theory of synchrotron self-absorbed radio cores in order to investigate the physical properties of the jet. Our results strongly suggest the jet to be dominated by an electron-positron (pair) ...

The characteristics of plasma free insulin profiles after conventional subcutaneous injection of regular insulin (10 units) and after jet injection of this amount of insulin were compared in eight subjects with insulin-dependent diabetes mellitus. Although administration of insulin with the jet injector resulted in peak plasma free insulin concentrations (45 +/- 4 microU/ml) similar to those ac...

In this paper, the ground state OH density is measured in high pressure plasma by laser-induced fluorescence (LIF) spectroscopy. The OH density determination is based on the simulation of the intensity fraction of fluorescence from the laser-excited level of OH (A) in the total detected LIF signal. The validity of this approach is verified in an atmospheric pressure Ar + H2O plasma jet sustaine...

Thermal sprayed surface coatings are extensively used for a wide range of industrial applications. In the plasma spray process used in thermal spraying, the temperature of substrate and conduction of heat along the thickness of ceramic oxide coatings (TCOC) play an important role in the bond strength and microstructure of the coatings, which decides its performance and quality. In this study, u...

New emerging technologies using blown arc plasma sources allow elaborating finely structured coatings which find many applications fields. Among them, Suspension Plasma Spraying consists in injecting within a dc plasma jet a liquid jet containing submicron solid particles which are plasma-sprayed to form coatings. This new technology has renewed the interest devoted to the understanding and the...

We report VLBI polarimetric observations of the steep spectrum compact radio source 3C138. The relatively small range of Faraday rotation measured in the outer jet and hotspot region suggests that the jet is not being confined by a dense plasma. These results are inconsistent with the “frustrated jet” scenario and are consistent with the “young source” scenario. Evidence is given for extensive ...

The flow control on the separation bubble and the large scale vortex is important in the turbo machine. Recently, a new approach using the plasma actuators is proposed to control the separation bubble and the large scale vortex. The aim of this study is to control the large scale vortex behind a flat plate using the plasma actuators. The effect of the three dimensional jet induced by the plasma...

JET is preparing for deuterium-tritium operation in 2015 with the newly installed ITER-like Wall, neutral beam enhancements (35MW, 20s) and diagnostics upgrades, as part of a phased approach to the full exploitation of JET. Performance projections for stationary ITER scenarios predict Q~0.160.20 for ELMy H-mode plasmas at 4.5MA/3.6T, Q~0.3-0.5 for hybrid plasmas at 3.5MA/3.45T to 4.1MA/4.0T and...