Autor: Metzger, M. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Improving efficiency of pH control by balance-based adaptive control application
Autorzy:: Stebel, K.
Czeczot, J.
Metzger, M.
Powiązania:: https://bibliotekanauki.pl/articles/229312.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: process control
adaptive control
pH process
control efficiency
controller tuning
Opis:: This paper deals with the efficient control of the pH process. Considering the PI + gain scheduling (PI+GS) controller as the benchmark and its control performance as the base, we investigate experimentally the overall improvement in the control performance obtained by the application of the Balance-Based Adaptive Controller (B-BAC), which requires only the measurement data of the flow rates and pH values. The improvement of the control efficiency is investigated not only in terms of the controlled variable performance but also in terms of the manipulated variable performance considered as the considerable control cost. The application of the B-BAController can ensure lower controlled pH variability at the price of the control effort similar to the PI+GS approach and thus it can improve the overall efficiency of pH control. The second important contribution is the experimental validation of the very simple and intuitive tuning procedure for the B-BAController.
Źródło:: Archives of Control Sciences; 2013, 23, 1; 19-40
1230-2384
Pojawia się w:: Archives of Control Sciences
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 2.

Tytuł:: Application of the substrate consumption rate to the monitoring of distributed parameter bioreactors
Autorzy:: Czeczot, J.
Metzger, M.
Babary, J.
Nihtilae, M.
Powiązania:: https://bibliotekanauki.pl/articles/206652.pdf
Data publikacji:: 2001
Wydawca:: Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:: biotechnologia
estymacja metodą najmniejszych kwadratów
biotechnology
distributed parameter systems
least squares estimation
Opis:: This paper deals with the idea of estimation of the substrate consumption rate at each point of the tube of the classical distributed parameter bioreactor and its application to the monitoring of this system. It is shown how to approximate the profile of this parameter on the basis of the orthogonal collocation method and the recursive least-squares procedure with adjustable forgetting factor. Then, it is suggested how to apply this profile for monitoring of the bioreactor work (calculation of the current mass flux of the substrate being reacted in the reactor tube and of the total mass of the substrate reacted in the bioreactor tube during its activity). The idea presented in this paper ivas validated by means of the computer simulation and the results proving its very good performance complete the paper.
Źródło:: Control and Cybernetics; 2001, 30, 1; 81-98
0324-8569
Pojawia się w:: Control and Cybernetics
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 3.

Tytuł:: Bivalve Characterization Using Synchrotron Micro X-Ray Fluorescence
Autorzy:: Jones, K.
Bronson, S.
Brink, P.
Gordon, C.
Mosher-Smith, K.
Brown, M.
Chaudhry, S.
Rizzo, A.
Sigismondi, R.
Whitehurst, M.
Lukaszewski, A.
Kranz, D.
Bland, K.
Gordan, D.
Lobel, J.
Sullivan, J.
Metzger, M.
O'Shea, C.
Harris, C.
Arezzo, R.
Kambhampati, M.
Powiązania:: https://bibliotekanauki.pl/articles/1808352.pdf
Data publikacji:: 2009-02
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 01.40.-d
07.85.Qe
82.80.Ej
87.59.-e
Opis:: Bivalves, oysters, mussels, and clams are important constituents of riverine and estuarine ecosystems. Their shells and soft tissues provide information on the environments in which they live. Since they are filter feeders, they also are factors in improving water quality through removal of particulate matter from the water column. Finally, they are a valuable food source that has substantial economic value. Hence, characterization of shells and soft tissues is useful for improved understanding of these factors. Here, we used X-ray microprobes and computed microtomography facilities at the Brookhaven National Synchrotron Light Source to investigate elemental distributions in bivalves taken from locations around New York, Washington, DC, and New Orleans, LA. The results form the initial basis for compilation of a database of relevant parameters that can serve for tracking environmental changes and for assessing toxicity of particular metals. The work was enabled by active collaboration with students from the several regions, community groups, and research scientists. The collaboration was facilitated through use of web conferencing between Brookhaven National Laboratory and the varied locations.
Źródło:: Acta Physica Polonica A; 2009, 115, 2; 477-481
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 4.

Tytuł:: Application of Third Generation Synchrotron Source to Studies of Non-Crystalline Materials: In-Se Amorphous Films
Autorzy:: Burian, A.
Jabłońska, A.
Burian, A. M.
Le Bolloc'h, D.
Metzger, H.
Proux, O.
Hazemann, J. L.
Mosset, A.
Raoux, D.
Powiązania:: https://bibliotekanauki.pl/articles/2030649.pdf
Data publikacji:: 2002-05
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 61.10.-i
61.43.Dq
Opis:: The local structure of vacuum evaporated In-Se amorphous films, containing 50, 60, and 66 at.% Se, was studied using differential anomalous X-ray scattering and extended X-ray absorption fine structure. Both intensity and absorption spectra were measured in the vicinity of the absorption K-edge of Se. The differential anomalous X-ray scattering data were converted to real space by the inverse Fourier transform yielding the differential radial distribution functions. The obtained results provide evidence for the presence of Se-In spatial correlations for In$\text{}_{50}$Se$\text{}_{50}$ and Se-In and Se-Se correlations for In$\text{}_{40}$Se$\text{}_{60}$ and In$\text{}_{34}$Se$\text{}_{66}$ within the first coordination sphere.
Źródło:: Acta Physica Polonica A; 2002, 101, 5; 701-708
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki