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These instructions contain information how to calculate and present environmental parameters when there is a lack of pulp data. All data are missing from one or several pulp suppliers. Data for less than 5% of the pulp mix used for the product, for the period in question, are missing.
Apr 30, 2015 · If the imputation method is poor (i.e., it predicts missing values in a biased manner), then it doesn't matter if only 5% or 10% of your data are missing - it will still yield biased results (though, perhaps tolerably so).
Feb 24, 2021 · They found 89% had partly missing outcome data, and in 37 trials with repeated outcome measures, 46% restricted analysis to those with complete records; only 21% reported sensitivity analysis to the missing data assumptions underpinning their primary analysis.
- James R Carpenter, Melanie Smuk
- 2021
Mar 12, 2007 · 1.1 This method describes the measurement of pulp consistency (concentration) of aqueous fiber suspensions. 1.2 The method applies to most pulps sampled from different process points in a pulp or paper mill. 1.3 The method is applicable to pulps with up to 25% consistency.
Jun 1, 2019 · The proportion of missing data is a common measure of how much information has been lost because of missing values in a data set. However, it does not reflect the information retained by auxiliary variables.
- Paul Madley-Dowd, Rachael Hughes, Kate Tilling, Jon Heron
- 2019
TAPPI T 240 Pulp consistency describes the measurement of pulp consistency (concentration) of aqueous fiber suspensions. The method applies to most pulps sampled from different process points in a pulp or paper mill. The method is applicable to pulps with up to 25% consistency.
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Jul 13, 2023 · A fiber dispersing system consists of three major steps: dewatering the pulp, heating it at 85-90°C or higher temperature, and applying shear forces to disperse pulp stock. These steps are crucial for ensuring the proper dispersing of fibers and ensuring the quality of the finished product.
