scholarly journals Characterization of plasmas from a pulsed jet discharge for applications VUV spectroscopy and micromechanics

1991 ◽  
Vol 27 (1) ◽  
pp. 95-100 ◽  
Author(s):  
H. Phillips ◽  
S. Kubodera ◽  
R. Sauerbrey ◽  
F.K. Tittel ◽  
P.J. Wisoff
Keyword(s):  
Pulsed Jet ◽  
Vuv Spectroscopy

scholarly journals Test stand for pulsed jet actuator command and characterization

2021 ◽  
Vol 2130 (1) ◽  
pp. 012031
Author(s):  
W Stryczniewicz ◽  
W Stalewski
Keyword(s):  
Mass Flow Rate ◽  
Mass Flow ◽  
Flow Rate ◽  
Pressure Sensor ◽  
Leading Edge ◽  
Test Stand ◽  
Design Stage ◽  
Testing Procedures ◽  
Pulsed Jet

Abstract The paper presents a test stand for characterization of a new design of a Pulsed Jet Actuator. The aim of the work was to characterize the performance of the PJA in terms of air parameters in the air supply line and velocity at the PJA outlet. To perform a detailed characterization of the system performance, the test bench comprised: a pressure reductor, a mass flow rate controller, a mass flow rate meter, a pressure sensor, a fast pressure sensor, a flow temperature sensor and a Constant Temperature Anemometer. The PJA was commanded by a real time controller with Field Programmed Gate Array architecture. The experimental results show good agreement with the results of Computational Fluid Dynamics simulations performed at the design stage of the PJA. It has been found that the flow parameters at the PJA nozzle outlet match the design goals. The developed bench testing procedures will be used for silent conditions tests of the PJA system integrated into a leading edge of a wind tunnel model.

Characterization of PAH/DPPG layer-by-layer films by VUV spectroscopy

2013 ◽  
Vol 36 (9) ◽  
Author(s):  
Andreia A. Duarte ◽  
Paulo J. Gomes ◽  
Jorge H. F. Ribeiro ◽  
Paulo A. Ribeiro ◽  
Søren V. Hoffmann ◽  
...  
Keyword(s):  
Layer By Layer ◽  
Vuv Spectroscopy

Characterization of Corner Plasma Actuators for Pulsed Jet Production

2012 ◽  
Author(s):  
Eric Stephen ◽  
Steve Mellinger ◽  
Tyler Weissinger ◽  
Thomas McLaughlin
Keyword(s):  
Plasma Actuators ◽  
Jet Production ◽  
Pulsed Jet

Morphological Characterization of Mycobacteriophage R1

1974 ◽  
Vol 32 ◽  
pp. 254-255
Author(s):  
B. L. Soloff ◽  
T. A. Rado
Keyword(s):  
Carbon Source ◽  
Stationary Phase ◽  
Growth Phase ◽  
Minimal Medium ◽  
Morphological Characterization ◽  
Logarithmic Growth Phase ◽  
Complete Lysis ◽  
Lysogenic Culture ◽  
Logarithmic Growth

Mycobacteriophage R1 was originally isolated from a lysogenic culture of M. butyricum. The virus was propagated on a leucine-requiring derivative of M. smegmatis, 607 leu−, isolated by nitrosoguanidine mutagenesis of typestrain ATCC 607. Growth was accomplished in a minimal medium containing glycerol and glucose as carbon source and enriched by the addition of 80 μg/ ml L-leucine. Bacteria in early logarithmic growth phase were infected with virus at a multiplicity of 5, and incubated with aeration for 8 hours. The partially lysed suspension was diluted 1:10 in growth medium and incubated for a further 8 hours. This permitted stationary phase cells to re-enter logarithmic growth and resulted in complete lysis of the culture.

AEM analysis of crystallization in Ti-based amorphous alloys

1983 ◽  
Vol 41 ◽  
pp. 270-271
Author(s):  
A.R. Pelton ◽  
A.F. Marshall ◽  
Y.S. Lee
Keyword(s):  
Magnetic Properties ◽  
Amorphous Alloys ◽  
Amorphous Materials ◽  
Isothermal Annealing ◽  
Amorphous Matrix ◽  
Nucleation And Growth ◽  
Current Interest ◽  
Amorphous Films ◽  
Electrical And Magnetic Properties

Amorphous materials are of current interest due to their desirable mechanical, electrical and magnetic properties. Furthermore, crystallizing amorphous alloys provides an avenue for discerning sequential and competitive phases thus allowing access to otherwise inaccessible crystalline structures. Previous studies have shown the benefits of using AEM to determine crystal structures and compositions of partially crystallized alloys. The present paper will discuss the AEM characterization of crystallized Cu-Ti and Ni-Ti amorphous films.Cu60Ti40: The amorphous alloy Cu60Ti40, when continuously heated, forms a simple intermediate, macrocrystalline phase which then transforms to the ordered, equilibrium Cu3Ti2 phase. However, contrary to what one would expect from kinetic considerations, isothermal annealing below the isochronal crystallization temperature results in direct nucleation and growth of Cu3Ti2 from the amorphous matrix.

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