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- G Jacobs, V V Yaroshenko, F Verheest
- Physical review. E, Statistical, nonlinear, and…
- 2002

The influence of dust-ion collisions on low-frequency modes in a self-gravitating dusty plasma is studied. The stability of the system is easily determined using elementary principles of rootlocus theory. It shows that collisions between ions and dust grains do not change the criteria for gravitational collapse at any value of their collision frequency, but… (More)

- MATTHEW J. CARRIER, HANS NGODOCK, +5 authors BRUCE LIPPHARDT
- 2014

Eulerian velocity fields are derived from 300 drifters released in the Gulf of Mexico by The Consortium for Advanced Research on Transport of Hydrocarbon in the Environment (CARTHE) during the summer 2012 Grand Lagrangian Deployment (GLAD) experiment. These data are directly assimilated into the Navy Coastal Ocean Model (NCOM) four-dimensional variational… (More)

- V V Yaroshenko, G Jacobs, F Verheest
- Physical review. E, Statistical, nonlinear, and…
- 2001

Using a kinetic description, dust-acoustic waves are considered for dusty plasmas containing, besides the electrons and ions, dust particles with continuous mass (size) distributions. For broad size spectra, self-gravitational effects cannot be neglected anymore because in the competition between electromagnetic and gravitational forces, the scale tips over… (More)

A chicken egg is an already packaged food. An important quality aspect of the packaging material is the mechanical strength of the eggshell. A commonly used technique for the measurement of the shell strength is the quasi-static, non-destructive compression of an egg between two parallel steel plates. The slope of the force-deformation curve is a measure… (More)

- F Verheest, P K Shukla, G Jacobs, V V Yaroshenko
- Physical review. E, Statistical, nonlinear, and…
- 2003

By employing the Boltzmann distributions for electrons and ions and by retaining the full dynamics of charged dust and neutral fluids, we derive a dispersion law for coupled dust-acoustic and neutral sound waves in partially ionized self-gravitating dusty plasmas. This dispersion law exhibits new classes of Jeans instability in both collisionless and highly… (More)

- V V Yaroshenko, G Jacobs, F Verheest
- Physical review. E, Statistical, nonlinear, and…
- 2001

A kinetic model is derived for the propagation of low-frequency waves in a dusty plasma containing very heavy dust particles, when the self-gravitational interaction due to these grains is included in the analysis. Analytical expressions for the dispersion function are used to examine the instability and damping of the modes. The stability regions of… (More)

- S M Henry, G Jacobs, H Achmeteli
- Applied microbiology
- 1967

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