Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Renaldas Urniezius"'
Autor:
Renaldas Urniezius, Deividas Masaitis, Donatas Levisauskas, Arnas Survyla, Povilas Babilius, Dziuljeta Godoladze
Publikováno v:
Computational and Structural Biotechnology Journal, Vol 21, Iss , Pp 5785-5795 (2023)
In this study, an automatic control system is developed for the setpoint control of the cell biomass specific growth rate (SGR) in fed-batch cultivation processes. The feedback signal in the control system is obtained from the oxygen uptake rate (OUR
Externí odkaz:
https://doaj.org/article/4d1862825bf9412984dc4b8743de4d4c
Autor:
Benas Kemesis, Renaldas Urniezius, Vygandas Vaitkus, Arnas Survyla, Rimvydas Simutis, Povilas Babilius, Lukas Zlatkus
Publikováno v:
Chemical Engineering Transactions, Vol 99 (2023)
This article presents the sophisticated-to-date carbon mass balance for fed-batch E.coli bioprocesses. The model originates from the distribution of carbon mass from glucose in biomass, off-gas, and hypothetical solutes. The suggested model complemen
Externí odkaz:
https://doaj.org/article/f1fa4085c5dc4141b78b508fc5168eac
Autor:
Deividas Masaitis, Renaldas Urniezius, Rimvydas Simutis, Vygandas Vaitkus, Mindaugas Matukaitis, Benas Kemesis, Vytautas Galvanauskas, Benas Sinkevicius
Publikováno v:
Entropy, Vol 25, Iss 9, p 1302 (2023)
Accurate estimations of the concentrations of soluble compounds are crucial for optimizing bioprocesses involving Escherichia coli (E. coli). This study proposes a hybrid model structure that leverages off-gas analysis data and physiological paramete
Externí odkaz:
https://doaj.org/article/14231df1fa9540e8b4fcc90c26d7cfdf
Autor:
Arnas Survyla, Renaldas Urniezius, Benas Kemesis, Lukas Zlatkus, Deividas Masaitis, Vytautas Galvanauskas
Publikováno v:
Chemical Engineering Transactions, Vol 93 (2022)
This study proposes the form of the physiological E.coli dependencies for the specific glucose consumption rate. It carries a two-fold purpose. The first one allows online estimation of the specific glucose consumption rate when the information on th
Externí odkaz:
https://doaj.org/article/c694b36139fe429ea959e2d91bb2cb03
Publikováno v:
Computational and Structural Biotechnology Journal, Vol 19, Iss , Pp 5856-5863 (2021)
The cell cultivation process in a bioreactor is a high-value manufacturing process that requires excessive monitoring and control compatibility. The specific cell growth rate is a crucial parameter that describes the online quality of the cultivation
Externí odkaz:
https://doaj.org/article/af4447e32f2b4d33aab0aa4fd7de1fe2
Autor:
Renaldas Urniezius, Arnas Survyla, Dziugas Paulauskas, Vladas Algirdas Bumelis, Vytautas Galvanauskas
Publikováno v:
Microbial Cell Factories, Vol 18, Iss 1, Pp 1-17 (2019)
Abstract Background The focus of this study is online estimation of biomass concentration in fed-batch cultures. It describes a bioengineering software solution, which is explored for Escherichia coli and Saccharomyces cerevisiae fed-batch cultures.
Externí odkaz:
https://doaj.org/article/50cfae01a6554a45a3815ec49d47853f
Publikováno v:
Entropy, Vol 23, Iss 8, p 1057 (2021)
This study presents a mathematical model of recombinant protein expression, including its development, selection, and fitting results based on seventy fed-batch cultivation experiments from two independent biopharmaceutical sites. To resolve the over
Externí odkaz:
https://doaj.org/article/dd4416853bde4e6aab02ae212c67b499
Publikováno v:
Chemical Engineering Transactions, Vol 74 (2019)
Dissolved oxygen concentration (DOC) is one of the most important technological parameters of fermentation processes influencing the physiological state of microorganisms’ cultures, production of desired products and reproducibility of desired proc
Externí odkaz:
https://doaj.org/article/580265bcbf2a47049aa642c956c79243
Autor:
Mindaugas Matukaitis, Renaldas Urniezius, Deividas Masaitis, Lukas Zlatkus, Benas Kemesis, Gintaras Dervinis
Publikováno v:
Applied Sciences, Vol 11, Iss 7, p 2946 (2021)
This study proposes a novel method for the positioning and spatial orientation control of three inextensible segments of trunk-type robots. The suggested algorithm imposes a soft constraint assumption for the end-effector’s endpoint and a mandatory
Externí odkaz:
https://doaj.org/article/20779229f6bc4a37a5653ec0951a6541
Autor:
Adom Giffin, Renaldas Urniezius
Publikováno v:
Entropy, Vol 16, Iss 9, Pp 4974-4991 (2014)
In this paper, we continue our efforts to show how maximum relative entropy (MrE) can be used as a universal updating algorithm. Here, our purpose is to tackle a joint state and parameter estimation problem where our system is nonlinear and in a non-
Externí odkaz:
https://doaj.org/article/43f453143e614a18a58bd81a28902317