scholarly journals Fire-hose instability of inhomogeneous plasma flows with heat fluxes

2020 ◽  
Vol 27 (11) ◽  
pp. 112901
Author(s):  
E. S. Uchava ◽  
A. G. Tevzadze ◽  
B. M. Shergelashvili ◽  
N. S. Dzhalilov ◽  
S. Poedts
Keyword(s):  
Inhomogeneous Plasma ◽  
Heat Fluxes ◽  
Plasma Flows ◽  
Fire Hose

An Experimental Multiple-Organ Model for the Study of Regional Net Release/Uptake Rates of Tissue-type Plasminogen Activator in the Intact Pig

1997 ◽  
Vol 78 (03) ◽  
pp. 1150-1156 ◽  
Author(s):  
Christina Jern ◽  
Heléne Seeman-Lodding ◽  
Bjӧrn Biber ◽  
Ola Winsӧ ◽  
Sverker Jern
Keyword(s):  
Plasminogen Activator ◽  
Multiple Organ ◽  
Tissue Type ◽  
Hepatic Veins ◽  
Plasma Flows ◽  
Tissue Type Plasminogen Activator ◽  
Type Plasminogen Activator ◽  
Uptake Rates ◽  
Net Release

SummaryExperimental data indicate large between-organs variations in rates of synthesis of tissue-type plasminogen activator (t-PA), which may reflect important differences in the capacity for constitutive and stimulated t-PA release from the vascular endothelium. In this report we describe a new multiple-organ experimental in vivo model for simultaneous determinations of net release/uptake rates of t-PA across the coronary, splanchnic, pulmonary, and hepatic vascular beds. In eleven intact anesthetized pigs, blood samples were obtained simultaneously from the proximal aorta, coronary sinus, pulmonary artery, and portal and hepatic veins. Plasma flows were monitored separately for each vascular region. Total plasma t-PA was determined by ELISA with a porcine t-PA standard. Regional net release/uptake rates were defined as the product of arteriovenous concentration gradients and local plasma flows. The net release of t-PA across the splanchnic vascular bed was very high, with a mean output of 1,919 ng total t-PA X min-1 (corresponding to 90 ng per min and 100 g tissue). The net coronary t-PA release was 68 ng X min-1 (30 ng X min-1 X 100 g"1)- Pulmonary net fluxes of t-PA were variable without any significant net t-PA release. The net hepatic uptake rate was 4,855 ng X min-1 (436 ng X min-1 X 100 g-1). Net trans-organ changes of active t-PA mirrored those of total t-PA. The results demonstrate marked regional differences in net release rates of t-PA in vivo. The experimental model we present offers new possibilities for evaluation of regional secretion patterns in the intact animal.

Probe diagnostics of laboratory and ionospheric rarefied plasma flows

2013 ◽  
Vol 19 (1(80)) ◽  
pp. 13-19
Author(s):  
V.A. Shuvalov ◽  
◽  
A.A. Lukenjuk ◽  
N.I. Pismenny ◽  
S.N. Kulagin ◽  
...  
Keyword(s):  
Plasma Flows ◽  
Probe Diagnostics

FORMATION OF Nb-CONTAINING ALLOYS IN THE SURFACE LAYER OF MATERIALS BY COMPRESSION PLASMA FLOWS

2015 ◽  
Vol 19 (2) ◽  
pp. 153-167 ◽  
Author(s):  
Nikolai Cherenda ◽  
Andrej K. Kuleshov ◽  
Vitali I. Shymanski ◽  
Vladimir V. Uglov ◽  
N. V. Bibik ◽  
...  
Keyword(s):  
Surface Layer ◽  
Plasma Flows ◽  
Compression Plasma Flows

SPECTROSCOPIC AND PROBE DIAGNOSTICS OF CARBON PLASMA FLOWS OF A PULSE VACUUM ARC

2010 ◽  
Vol 14 (1-2) ◽  
pp. 157-163 ◽  
Author(s):  
I. P. Smyaglikov ◽  
N. I. Chubrik ◽  
S.V. Goncharik ◽  
V. V. Azharonok ◽  
L. E. Krat'ko ◽  
...  
Keyword(s):  
Vacuum Arc ◽  
Plasma Flows ◽  
Probe Diagnostics ◽  
Carbon Plasma

STRUCTURE OF THE AUSTENITIC STEEL SURFACE LAYER SUBJECTED TO COMPRESSION PLASMA FLOWS IMPACT

2020 ◽  
Vol 24 (3) ◽  
pp. 211-225
Author(s):  
Nikolai N. Cherenda ◽  
Vladimir V. Uglov ◽  
Yu. V. Martinovich ◽  
I. A. Betanov ◽  
Valiantsin M. Astashynski ◽  
...  
Keyword(s):  
Surface Layer ◽  
Austenitic Steel ◽  
Steel Surface ◽  
Plasma Flows ◽  
Compression Plasma Flows
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