Current Start-Up Using the New CHI System

Solenoid-free Plasma Start-up in NSTX using Transient CHI

Experiments in NSTX have now demonstrated the coupling of toroidal plasmas produced by the technique of Coaxial Helicity Injection (CHI) to inductive sustainment and ramp-up of the toroidal plasma current. In these discharges, the central Ohmic transformer was used to apply an inductive loop voltage to discharges with a toroidal current of about 100 kA created by CHI. The coupled discharges hav...

Solenoid-free Plasma Start-up in HIT-II and NSTX using Transient CHI

A New Start-up Demonstration Test

In this paper, we introduce and study a new acceptance / rejection rule suitable for use in start up demonstration tests. According to this rule, the equipment is accepted if k consecutive successes occur, while the equipment is rejected if two failures separated by at most 2 − r successes are observed. General formulae and analytic expressions are given for the probability mass function, the m...

Start-up entities in the origin of new genes.

The remarkable diversity in the contents of genomes raises questions about how new genes and new functions originate. Recent evidence indicates that parasitism, particularly the molecular interactions between phage and their bacterial hosts, is a likely mechanism for generating new genes. This invention of such novel functions seems to be founded on a strategy that secures the short-term surviv...

The START Multimedia Information System: Current Technology and Future Directions

To address the problem of information overload in today’s world, we have developed Start, a natural language question answering system that provides users with high-precision multimedia information access through the use of natural language annotations. To address the difficulty of accessing large amounts of heterogeneous data, we have developed Omnibase, which assists Start by integrating stru...