1. These quantum confinement effects are apparent only below the critical size . 2. The critical size must at least include enough fissionable material to reach critical mass. 3. The costs of research and development and the need for critical size makes mergers likely. 4. :: Hail has a critical size at which realistically it must fall back to earth. 5. Most calculations of the upper size limit for the single-domain state identify it with this critical size . 6. Others feel an Indosuez takeover would both enhance its critical size and lessen parent Suez's debt burden. 7. The electrochemically active area consists of 50 nm nanoparticles, smaller than the critical size for crack propagation. 8. "We've got the critical size necessary. 9. In order for the nucleus of a new phase to be stable, it must reach a critical size . 10. Eventually a crack will reach a critical size , the crack will propagate suddenly, and the structure will fracture.