Patients also exhibited a greater variability in the postural oscillation, evaluated by the directional stability index.
2.
"The stability index is a major factor or is a big factor in rollover propensity, " he said.
3.
But a study of 186, 000 crashes over a five-year period found that the stability index correlated well with the incidence of rollovers, department officials said.
4.
Ford spokesman Jon Harmon acknowledged the redesign in the 1995 model year made the Explorer's center of gravity slightly higher and its stability index, which measures rollover propensity, slightly worse.
5.
Where " g " is the gravitational acceleration, " k " is the radius of gyration about the longitudinal axis through the centre of gravity and \ overline { GM } " is the stability index.
6.
The ranking system that the Transportation Department now plans to use consists of one-half the track width of the vehicle divided by the height of its center of gravity, a ranking called the static stability index.
7.
In 1990, after leaving Ford, Bickerstaff was deposed in a rollover case and said that the prototype Bronco II had scores on a testing scale, known as a stability index, that were not satisfactory to him.
8.
The plaintiffs'lawyers say that his testimony then appeared to shift . In a 1994 trial, Bickerstaff testified that the stability index was " an arbitrary number, " adding " I don't attach any significance to it ."
9.
The geothermal fluid of K1z1ldere reservoir has a Langelier Saturation Index ( LSI ) of 2.1 and Ryznar Stability Index ( RSI ) of 2.3 by a pH value of 9.3, making scaling take place very rapidly.
10.
Harmon, the Ford spokesman, said that Bickerstaff testified consistently that the stability index " was just one of many factors that need to be taken into account to determine the dynamic safety performance of a vehicle ."
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