ABB PP825 3BSE042240R1 operating panel touch screen stock
Technical data of product parameters
PP825 3BSE042240R1 estimate of safety effect of treatment as documented in respective evaluationPP825 3BSE042240R1
study publication. This step involved determining the CMF based on the information provided in
the study, whether the authors explicitly presented the CMF or whether the CMF could be
derived based on information provided in the study.
Step 2. Adjust estimate of safety effect to account for potential bias from regression-to-the-mean
(RTM) and changes in traffic volume. If the study appeared to have been affected by a significant
bias, the reviewers would adjust the CMF value to account for the bias effect.
Step 3. Determine ideal standard error of safety effect. The reviewers would calculate the ideal
standard error if not presented in the study. The standard error gives an indication of the
relative reliability of the CMF estimate, taking into account factors such as sample size and
variance inherent in the data.
Step 4. Apply method correction factor (MCF) to ideal standard error, based on evaluation study
characteristics. An MCF would be determined by the reviewers based on the reliability of thePP825 3BSE042240R1
study, with consideration of factors such as study methodology, treatment of possible biases,
treatment of potential confounding factors, and selection of appropriate functional form for
regression models. Higher MCF values indicated a less reliable quality of study. It should be
noted that the highest MCF values were assigned to those CMFs that had a severe lack of
information published regarding study data and findings. The tables showing the relation ofPP825 3BSE042240R1
study characteristics to MCF values can be found in Appendix B.
NCHRP 20-7(314) Final Report – Recommended Protocols for Developing Crash Modification Factors 11
Step 5. Adjust corrected standard error to account for bias from RTM and changes in traffic
volume. Once the MCF was applied to the standard error, the reviewers would adjust it to
account for any significant biases.
Step 6. Combine CMFs when specific criteria are met. In situations where multiple studiesPP825 3BSE042240R1
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What if there is a quality problem?
Seven-day acceptance period, one-year warranty period
When can we deliver it?1-3 working days
How about the quality?New or second-hand
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Introduction to main products
Focus on DCS, PLC, robot control system and large servo system.
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reminder
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