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INITIAL KINETIC ENERGY [6 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2014-06-10

English

Subject field(s)
  • Atomic Physics
Universal entry(ies)
w
symbol, see observation
DEF

The quotient of the initial kinetic energy of a charged particle by the average number of ion pairs formed along its track in a gas when that particle is completely stopped by the gas.

OBS

average energy expended in a gas per ion pair formed: term and definition standardized by ISO.

OBS

w: This symbol is written with a horizontal line above it.

French

Domaine(s)
  • Physique atomique
Entrée(s) universelle(s)
w
symbol, see observation
DEF

Quotient de l'énergie cinétique initiale d'une particule chargée par le nombre moyen de paires d'ions formées le long de sa trajectoire dans un gaz lorsque cette particule est complètement arrêtée par le gaz.

OBS

w : Ce symbole est écrit avec une ligne horizontale au-dessus.

OBS

perte moyenne d'énergie par paire d'ions dans un gaz : terme et définition normalisés par l'ISO.

Spanish

Save record 1

Record 2 2002-11-05

English

Subject field(s)
  • Spacecraft
CONT

Early telemetry from the spin-stabilized IMAGE spacecraft indicated that the vehicle's initial nutation was not decaying. This behavior was especially puzzling because the spacecraft's passive nutation damper behaved as expected while IMAGE was attached to the spinning upper stage.... In a partially-filled ring damper, the excess kinetic energy associated with nutation is dissipated by fluid viscosity when inertial forces cause the liquid to move through the tube. However, post-launch analysis indicated that the IMAGE damper liquid was immobilized by surface tension. This was an unanticipated consequence of the vehicle's low spin rate.

French

Domaine(s)
  • Engins spatiaux

Spanish

Save record 2

Record 3 1986-05-12

English

Subject field(s)
  • Energy (Physics)
  • Electric Rotary Machines
CONT

Assume that the initial kinetic energy... is all translational, and the final kinetic energy is both translational and rotational.... Then the power extracted is proportional to the difference in the initial and final kinetic energies....

French

Domaine(s)
  • Énergie (Physique)
  • Machines tournantes électriques

Spanish

Save record 3

Record 4 1986-05-12

English

Subject field(s)
  • Aerodynamics and Theory of Gases
  • Electric Rotary Machines
  • Scientific Measurements and Analyses
CONT

Considerations of wake rotation can improve our modeling. The initial stream is not rotating, but the interaction with the wind machine causes a rotating wake. For a wake that has both translational and rotational kinetic energy, thermodynamic considerations lead us to expect a lower power extraction than for a nonrotating wake.

French

Domaine(s)
  • Théorie des gaz et aérodynamique
  • Machines tournantes électriques
  • Mesures et analyse (Sciences)

Spanish

Save record 4

Record 5 1986-05-12

English

Subject field(s)
  • Energy (Physics)
  • Electric Rotary Machines
CONT

Assume that the initial kinetic energy... is all translational, and the final kinetic energy is both translational and rotational.... Then the power extracted is proportional to the difference in the initial and final kinetic energies....

French

Domaine(s)
  • Énergie (Physique)
  • Machines tournantes électriques

Spanish

Save record 5

Record 6 1986-05-12

English

Subject field(s)
  • Aerodynamics and Theory of Gases
  • Electric Rotary Machines
  • Scientific Measurements and Analyses
CONT

The initial stream is not rotating, but the interaction with the wind machine causes a rotating wake. For a wake that has both translational and rotational kinetic energy, thermodynamic considerations lead us to expect a lower power extraction than for a non rotating wake.

French

Domaine(s)
  • Théorie des gaz et aérodynamique
  • Machines tournantes électriques
  • Mesures et analyse (Sciences)

Spanish

Save record 6

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