Two-stage robust estimators for product concentration in a penicillin fermentation
Two strategies are proposed for inferential estimations of penicillin concentration in a fed-batch fermentation process. The first scheme employs a partial least squares (PLS)-based estimator to directly estimate the intended product concentration. The second introduces a two-step estimation where b...
| Main Authors: | , |
|---|---|
| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
2004
|
| Subjects: | |
| Online Access: | http://eprints.utm.my/5944/1/A.W.Chow2004_TwoStageRobustEstimatorsForProduct.pdf |
| _version_ | 1796853991287554048 |
|---|---|
| author | Chow, A. W. Ahmad, Arshad |
| author_facet | Chow, A. W. Ahmad, Arshad |
| author_sort | Chow, A. W. |
| collection | ePrints |
| description | Two strategies are proposed for inferential estimations of penicillin concentration in a fed-batch fermentation process. The first scheme employs a partial least squares (PLS)-based estimator to directly estimate the intended product concentration. The second introduces a two-step estimation where biomass concentration is first estimated and used as the input to the final estimator along with other process variables. The results confirmed the strength of the two-stage approach. To further extend the capability of the estimation scheme, a wavelet-based filter is added to the estimation model. The improved performance obtained proved the efficacy of the wavelet filter. |
| first_indexed | 2024-03-05T18:07:47Z |
| format | Conference or Workshop Item |
| id | utm.eprints-5944 |
| institution | Universiti Teknologi Malaysia - ePrints |
| language | English |
| last_indexed | 2024-03-05T18:07:47Z |
| publishDate | 2004 |
| record_format | dspace |
| spelling | utm.eprints-59442017-09-10T08:29:38Z http://eprints.utm.my/5944/ Two-stage robust estimators for product concentration in a penicillin fermentation Chow, A. W. Ahmad, Arshad T Technology (General) Two strategies are proposed for inferential estimations of penicillin concentration in a fed-batch fermentation process. The first scheme employs a partial least squares (PLS)-based estimator to directly estimate the intended product concentration. The second introduces a two-step estimation where biomass concentration is first estimated and used as the input to the final estimator along with other process variables. The results confirmed the strength of the two-stage approach. To further extend the capability of the estimation scheme, a wavelet-based filter is added to the estimation model. The improved performance obtained proved the efficacy of the wavelet filter. 2004 Conference or Workshop Item PeerReviewed application/pdf en http://eprints.utm.my/5944/1/A.W.Chow2004_TwoStageRobustEstimatorsForProduct.pdf Chow, A. W. and Ahmad, Arshad (2004) Two-stage robust estimators for product concentration in a penicillin fermentation. In: 18th Symposium of Malaysian Chemical Engineers (SOMChe) 2004, 13 - 14 Dec. 2004, UTP, Perak, Malaysia. |
| spellingShingle | T Technology (General) Chow, A. W. Ahmad, Arshad Two-stage robust estimators for product concentration in a penicillin fermentation |
| title | Two-stage robust estimators for product concentration in a penicillin fermentation |
| title_full | Two-stage robust estimators for product concentration in a penicillin fermentation |
| title_fullStr | Two-stage robust estimators for product concentration in a penicillin fermentation |
| title_full_unstemmed | Two-stage robust estimators for product concentration in a penicillin fermentation |
| title_short | Two-stage robust estimators for product concentration in a penicillin fermentation |
| title_sort | two stage robust estimators for product concentration in a penicillin fermentation |
| topic | T Technology (General) |
| url | http://eprints.utm.my/5944/1/A.W.Chow2004_TwoStageRobustEstimatorsForProduct.pdf |
| work_keys_str_mv | AT chowaw twostagerobustestimatorsforproductconcentrationinapenicillinfermentation AT ahmadarshad twostagerobustestimatorsforproductconcentrationinapenicillinfermentation |