A nonlinear interaction between the whistler mode wave packet and resonantparticles is considered. An evolution of the packet’s shape is investigated in detail. Nonlinear effects produced by the interaction of whistlers with resonant particles have been discussedin a large number of papers (e.g. Roux and Solomon, 1970; Coriniti et al., 1971; Bud’ko ef al., 1971).However, either pack...

We report here results obtained from a series of plasma flow switch experiments done on the Procyon explosive pulse power generator. These experiments involved switching into a fixed inductance dummy load and also into a dynamic implosion load. The results indicated that the switch did fairly well at switching current into the load, but the results for the implosion are more ambiguous. We compa...

Dielectric-barrier-discharge (DBD) plasma actuators are all-electric devices with no moving parts. They are made of a simple construction, consisting only of a pair of electrodes sandwiching a dielectric sheet. When AC voltage is applied, air surrounding the upper electrode is ionized, which is attracted towards the charged dielectric surface to form a wall jet. Control of flow over land and ai...

Non-modulation has been proposed as an intermediate phenotype in human essential hypertension. The trait is characterized by blunted aldosterone and renal plasma flow responses to short-term angiotensin II (Ang II) infusion. Elevated tissue Ang II levels or decreased tissue adenosine levels could account for this decreased sensitivity to Ang II. In support of the latter possibility, endogenous ...

Poloidal asymmetries of parallel flows in edge plasmas are investigated by the 3D fluid turbulence code TOKAM3X. A diverted COMPASSlike magnetic equilibrium is used for simulations. Measurements and simulations of parallel Mach numbers are compared and exhibit good qualitative agreement. Small-scale turbulent transport is observed to dominate near the Low Field Side midplane, even though co-exi...

The study and prediction of velocities in the pedestal region of Alcator CMod are important for understanding plasma confinement and transport. In this study we examine the simplified neoclassical predictions for impurity flows using equations developed for plasmas with background ions in the Pfirsch-Schlüter (high collisionality) and banana (low collisionality) regimes. B flow profiles for H-m...

The cooperation of nonlinearity ~producing collapsed characteristics! and dispersion ~unfolding singularities! underlies a robust mechanism that imparts two distinct scales (L measuring the system size, and d i typically of the order of the ion skin depth! to the double Beltrami states of a two-fluid plasma. It is shown that the conventional single-fluid model @magnetohydrodynamic ~MHD!# seemin...

Previous studies have suggested that by slight modification of the cu"entformulosfor iodine-131 (1) orthoiodohippurate (OIH) effective renal plasma flow (ERPF) quantitation, technetium99m ('mTc) mercaptoacetyltriglycine (MAG~ can be substituted for 1-0IH in the quantitative renal function protocol. This study was undertaken to compare two different camera techniques that do not require blood sa...

The aerodynamic plasma actuators have shown to be efficient flow control devices in various applications. In this study the results of flow control experiments utilizing single dielectric barrier discharge plasma actuators to control flow separation and unsteady vortex shedding from a circular cylinder in cross-flow are reported. This work is motivated by the need to reduce landing gear noise f...