In practice, the accuracy is likely to vary due to environmental conditions, materials and operator skills.
Some factors in manufacturing such as faulty raw material, unskilled/careless operators, and loosening of machine settings may lead to a change in process dispersion without necessarily influencing the level of the process mean.
To answer that, he looked at a film of the operation again and again until he noticed that in repeatedly offering up the handle to the rotating drill bit and clearing out the drilled material, the operator each time rotated the handle a fraction of a revolution, ensuring that the drill continued its central path.
To investigate the association of the failure of porcelain laminate veneers with factors related to the patient, material, and operator.
The evolutionary growth of the automation has increased complexity which is thought to have led to the lack of a global model of the automation upon which the training material and operator feedback can be designed.
Consider this: If you demand that a Web site libeling you, your products or your company remove the offensive material, its operator can argue the site is just a transmission medium, no different from the phone company or the post office, and no more liable than they for the messages they carry.
Objective function of the mathematical model developed by Sakhaii et al. (2016) sought to minimize the costs of inter- and intra-cell material handling, operator training and hiring, machine relocation, machine breakdowns, inventory holding and backorder.
With the continuous increase in written materials needed by operators to do their job, company documents must be easy to understand and remember so that tasks can be carried out efficiently.
This prior knowledge might have been obtained based on awareness and past experience of process engineers in factors such as changes in operators, materials, procedures, tools, and policies which may lead to increasing or decreasing step changes in the Poisson rate.
The batch effects are the systematic differences between batches (groups) of samples in microarray experiments due to technical reasons, such as variability in materials, protocols or operators, possibly introducing a bias able to confound true biological differences (recently reviewed by Luo and coll. [ 30]).
