The fluid theory of steady-state magnetically confined electron clouds sustained by ionization and emission

1992 ◽  
Vol 14 (4) ◽  
pp. 369-378 ◽  
Author(s):  
Q. -C. Yu ◽  
H. Qiu
Keyword(s):  
Steady State ◽  
Magnetically Confined ◽  
Fluid Theory ◽  
Electron Clouds

scholarly journals Steady-State Fully Noninductive Current Driven by Electron Cyclotron Waves in a Magnetically Confined Plasma

2000 ◽  
Vol 84 (15) ◽  
pp. 3322-3325 ◽  
Author(s):  
O. Sauter ◽  
M. A. Henderson ◽  
F. Hofmann ◽  
T. Goodman ◽  
S. Alberti ◽  
...  
Keyword(s):  
Steady State ◽  
Electron Cyclotron ◽  
Magnetically Confined ◽  
Electron Cyclotron Waves

Behavior of Viscoelastic Media Under Small Sinusoidal Oscillations Superposed on Finite Strain

1968 ◽  
Vol 35 (3) ◽  
pp. 433-440 ◽  
Author(s):  
W. Goldberg ◽  
G. Lianis
Keyword(s):  
Steady State ◽  
Finite Strain ◽  
Complex Modulus ◽  
Uniaxial Extension ◽  
Viscoelastic Behavior ◽  
Uniaxial Stress ◽  
Viscoelastic Media ◽  
Sinusoidal Oscillations ◽  
Fluid Theory ◽  
Finite Linear

In this paper, we examine the response of an incompressible elastomer when it is subjected to small, steady-state oscillations superposed on a large steady deformation. The material is assumed to be isotropic in its undeformed state, and its viscoelastic behavior is characterized by means of two different approximate theories: (a) Lianis’ approximation of the theory of finite linear viscoelasticity, and (b) Bernstein, Kearsley, Zapas’ elastic fluid theory, Signorini approximation. Theoretical expressions are developed for the uniaxial stress in a body subjected to steady-state sinusoidal oscillations superposed on a state of steady, finite, uniaxial extension, using both theories. A complex modulus is defined, which reduces to the complex modulus of infinitesimal viscoelasticity when the finite strain is zero. Experiments were performed on three different polymers and the observed response is compared with that predicted by both theories.

Studies on Water in the Hydration Chamber of a Modified Electron Microscope

1970 ◽  
Vol 28 ◽  
pp. 544-545
Author(s):  
R. C. Moretz ◽  
G. G. Hausner ◽  
D. F. Parsons
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Electron Microscope ◽  
Steady State ◽  
Room Temperature ◽  
Small Mass ◽  
Equilibrium Pressure ◽  
Biological Objects ◽  
Mechanical Pump ◽  
Differential Pumping

Use of the electron microscope to examine wet objects is possible due to the small mass thickness of the equilibrium pressure of water vapor at room temperature. Previous attempts to examine hydrated biological objects and water itself used a chamber consisting of two small apertures sealed by two thin films. Extensive work in our laboratory showed that such films have an 80% failure rate when wet. Using the principle of differential pumping of the microscope column, we can use open apertures in place of thin film windows.Fig. 1 shows the modified Siemens la specimen chamber with the connections to the water supply and the auxiliary pumping station. A mechanical pump is connected to the vapor supply via a 100μ aperture to maintain steady-state conditions.

Continuous hydrogenolysis of acetal-stabilized lignin in flow

2021 ◽  
Author(s):  
Wu Lan ◽  
Yuan Peng Du ◽  
Songlan Sun ◽  
Jean Behaghel de Bueren ◽  
Florent Héroguel ◽  
...  
Keyword(s):  
Steady State ◽  
Challenges And Opportunities

We performed a steady state high-yielding depolymerization of soluble acetal-stabilized lignin in flow, which offered a window into challenges and opportunities that will be faced when continuously processing this feedstock.

Network reconstruction based on steady-state data

2008 ◽  
Vol 45 ◽  
pp. 161-176 ◽  
Author(s):  
Eduardo D. Sontag
Keyword(s):  
Steady State ◽  
Reverse Engineering ◽  
Theoretical Method ◽  
Network Reconstruction ◽  
Quasi Steady State ◽  
State Data

This paper discusses a theoretical method for the “reverse engineering” of networks based solely on steady-state (and quasi-steady-state) data.

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