primary variable

primary variable

A term used in clinical trials for the outcome variable specified in the study protocol that is of greatest importance to the trial’s primary objective, and usually the one used in the sample size calculation.
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The end user can easily select which primary variable should control the loop signal via the Eclipse[R] look alike menu.
The secondary efficacy variables were: (a) as per primary variable (evening/night); (b) physician's global assessment; (c) responder rates.
A review on achievement grouping and tracking concludes that grouping arrangements alone are not the primary variable for school effectiveness.
These are similar with the primary variable being Mooney viscosity.
They are the enterprise's primary focus and the primary variable of interest in this study.
There are cases in which the coefficient of variation, rather than the variance, is the primary variable of interest.
The work to be performed by the contractor is generally described as follows: Monroe Monroe County Detention Center on Stock Island Replacment of existing two water cooled 300-ton chillers; conversion of existing primary-secondary chilled water loop to one integrated primary variable flow loop; replacement of existing chilled water pumps; replacement of two existing cooling towers soft starts with variable frequenty drives; replacement of existing condenser water pumps; replacement of air handler units AHU-B1, AHU-B2 and AHU-C1; upgrade and intergrate existing Building Automation System and as further described on Sheet M-0.1 of the project drawings.
The engineer needs to know what the owner wants for a chiller plant (Figure 1 shows a primary variable flow system).
The model 2500IAS, however, uses hydraulic instead of pneumatic pressure, which is said ensure a constant 2.5-ton force and eliminates a primary variable in the staking process.
The primary variable of the problem is the pressure.
The primary variable of interest in this study is PATH, a binary variable indicating whether or not the dwelling has a proximate golf cart path.
Additionally, the use of primary variable chillers eliminated pumps, further simplifying the system and reducing maintenance.