Examlex
The primary purpose of a variable-frequency drive is to provide speed control for an AC motor.
Longitudinal
A type of study or analysis where data is collected over a long period of time to observe changes in the subjects or phenomena being studied.
Sequential Designs
Research designs utilizing successive observations or experiments, allowing for the study of changes over time and the effects of earlier events on later outcomes.
Self-Understanding
The process or ability of an individual to comprehend their own emotions, motivations, and behaviors.
Conservation
The principle in cognitive development that recognizes the amount of a substance remains the same despite changes in its shape or container.
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