Role of hydrogen in evolution of plasma parameters and dust growth in capacitively coupled dusty plasmas

2010 ◽  
Vol 97 (20) ◽  
pp. 201503 ◽  
Author(s):  
K. B. Chai ◽  
Wonho Choe ◽  
C. R. Seon ◽  
C. W. Chung
Keyword(s):  
Dusty Plasmas ◽  
Plasma Parameters ◽  
Capacitively Coupled

scholarly journals What Density of Magnetosheath Sodium Ions Can Provide the Observed Decrease in the Magnetic Field of the “Double Magnetopause” during the First MESSENGER Flyby?

Symmetry ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 1168
Author(s):  
Elena Belenkaya ◽  
Ivan Pensionerov
Keyword(s):  
Magnetic Field ◽  
Analytical Approach ◽  
Field Structure ◽  
Sodium Ions ◽  
Plasma Parameters ◽  
Calculation Results ◽  
Magnetizing Current ◽  
The Magnetic Field ◽  
Density Excess

On 14 January 2008, the MESSENGER spacecraft, during its first flyby around Mercury, recorded the magnetic field structure, which was later called the “double magnetopause”. The role of sodium ions penetrating into the Hermean magnetosphere from the magnetosheath in generation of this structure has been discussed since then. The violation of the symmetry of the plasma parameters at the magnetopause is the cause of the magnetizing current generation. Here, we consider whether the change in the density of sodium ions on both sides of the Hermean magnetopause could be the cause of a wide diamagnetic current in the magnetosphere at its dawn-side boundary observed during the first MESSENGER flyby. In the present paper, we propose an analytical approach that made it possible to determine the magnetosheath Na+ density excess providing the best agreement between the calculation results and the observed magnetic field in the double magnetopause.

scholarly journals The role of molecular ions in cryogenic dusty plasmas of dc discharge in neon

2018 ◽  
Vol 1058 ◽  
pp. 012049
Author(s):  
V V Shumova ◽  
D N Polyakov ◽  
L M Vasilyak
Keyword(s):  
Dusty Plasmas ◽  
Molecular Ions ◽  
Dc Discharge

scholarly journals Space and phase resolved plasma parameters in an industrial dual-frequency capacitively coupled radio-frequency discharge

2007 ◽  
Vol 40 (22) ◽  
pp. 7008-7018 ◽  
Author(s):  
J Schulze ◽  
T Gans ◽  
D O'Connell ◽  
U Czarnetzki ◽  
A R Ellingboe ◽  
...  
Keyword(s):  
Radio Frequency ◽  
Dual Frequency ◽  
Plasma Parameters ◽  
Capacitively Coupled ◽  
Radio Frequency Discharge

The role of edge plasma parameters in H-mode density limit on the JET-ILW

2021 ◽  
Vol 61 (6) ◽  
pp. 066009
Author(s):  
H.J. Sun ◽  
R.J. Goldston ◽  
A. Huber ◽  
X.Q. Xu ◽  
J. Flanagan ◽  
...  
Keyword(s):  
Edge Plasma ◽  
Plasma Parameters ◽  
Density Limit

Role of endogenous atrial natriuretic peptide in volume expansion diuresis and natriuresis of the Pekin duck

1994 ◽  
Vol 140 (1) ◽  
pp. 85-90 ◽  
Author(s):  
D A Gray
Keyword(s):  
Atrial Natriuretic Peptide ◽  
Natriuretic Peptide ◽  
Volume Expansion ◽  
Polyclonal Antibodies ◽  
Physiological Role ◽  
Arginine Vasotocin ◽  
Pekin Duck ◽  
Plasma Parameters ◽  
Atrial Natriuretic

Abstract Polyclonal antibodies raised in a rabbit against avian atrial natriuretic peptide (ANP) were shown to reduce circulating endogenous ANP levels in Pekin ducks by more than 90%, and were subsequently used to investigate the role of this peptide in volume expansion diuresis and natriuresis. Conscious birds, undergoing a steady-state diuresis and natriuresis maintained by an i.v. infusion of hypotonic saline at a rate of 0·7 ml/min, responded to ANP antiserum (anti-ANP) with an immediate 30% reduction in urine flow rate and sodium excretion which lasted for about 30 min. Plasma arginine vasotocin levels were not changed by anti-ANP whereas circulating angiotensin II concentrations increased immediately following the administration of anti-ANP. Serum from non-immunized normal rabbits produced no changes in the renal and plasma parameters monitored. The results show that the high circulating levels of endogenous ANP associated with volume expansion promote renal salt and fluid excretion and thus have a major physiological role in avian volume homeostasis. Journal of Endocrinology (1994) 140, 85–90

Fabrication of Device-Quality Wide-Gap a-Si:H Films at Very Low Substrate Temperatures

1990 ◽  
Vol 192 ◽  
Author(s):  
Yoshihiro Hishikawa ◽  
Sadaji Tsuge ◽  
Noboru Nakamura ◽  
Shinya Tsuda ◽  
Shoichi Nakano ◽  
...  
Keyword(s):  
Deposition Rate ◽  
Light Exposure ◽  
Rf Plasma ◽  
Plasma Parameters ◽  
Solar Cell Performance ◽  
Capacitively Coupled ◽  
Bond Density ◽  
Deposition Parameters ◽  
Wide Gap ◽  
Substrate Temperatures

ABSTRACTWide-gap a-Si:H films with device quality (Tauc’s optical gap > 1.9eV, σph under AMI.5, 100mW/cm2 illumination ≥ 10−5, Ω−1cm−1, a σph/σ a≥106) have been fabricated. These films are deposited at low substrtate temperatures (TS≤80°C ) either by diluting SiH4 with H2 or optimizing the plasma parameters in a capacitively–coupled RF plasma–CVD reactor. Reduction in the SiH2 bond density and the ESR spin density are also observed. In this study, good film quality is always accompanied by a small deposition rate. Furthermore, σph is nearly the same if the deposition rate and Ts is the same, regardless of other deposition parameters. This suggests that the surface reactions or structural relaxations at the film-growing surface can produce high–quality a–Si:H films even at low TsS, if the deposition rate is low. Results in thermal annealing, light exposure, and solar cell performance confirm that these films have device quality and wide bandgap.

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