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Wyświetlanie 1-15 z 18
Tytuł:
Fuzzy models of the biological-chemical processes in the west-water treatment plant
Autorzy:
Szabat, K.
Kowalski, C. J
Powiązania:
https://bibliotekanauki.pl/articles/97453.pdf
Data publikacji:
2010
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
treatment plant
electrical blower
biological-chemical process
fuzzy model
Opis:
In the work issues related to control of the electrical blowers installed in the waste water treatment plant (WWTP) are demonstrated. After a short introduction a description of a real treatment plant is presented. Then the main sewage drives are described. Next the commonly used control strategies for the biological-chemical process are presented. The model ASM1 of the biological chemical transformation used in the advanced MPC (model predictive control) strategy is introduced. Then the fuzzy system based on the TSK model is presented. The ability of the TSK fuzzy system to estimate the biological-chemical variables are demonstrated.
Źródło:
Computer Applications in Electrical Engineering; 2010, 8; 230-241
1508-4248
Pojawia się w:
Computer Applications in Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Diurnal and seasonal changes in endogenous melatonin levels in the blood plasma in dogs
Autorzy:
Zan, R S
Rolinski, Z
Kowalski, C J
Bojarska-Junak, A
Madany, J
Powiązania:
https://bibliotekanauki.pl/articles/30357.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
This paper describes research on the levels of endogenous melatonin (MLT) in the blood serum in dogs in different seasons (March, June, September, December) and at different times of day (11:00, 12:00, 23:00, 24:00 and 1:00), using immunoassay method. Blood samples were collected in the diurnal cycle, in consecutive seasons. The conducted studies show that MLT levels undergo clear changes in both the diurnal cycle, as well as in seasonal one in this species.
Źródło:
Polish Journal of Veterinary Sciences; 2013, 16, 4
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pharmacokinetics of tramadol and metabolites after injective administrations in dogs
Autorzy:
Giorgi, M.
Del Carlo, S.
Lebkowska-Wieruszewska, B.
Kowalski, C.J.
Saccomanni, G.
Powiązania:
https://bibliotekanauki.pl/articles/30304.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
pharmacokinetics
tramadol
metabolite
dog
bioavailability
intravenous injection
intramuscular injection
plasma
tramadol concentration
Opis:
The aim of this study was to determine the pharmacokinetics of tramadol and its main metabolites after IV and IM injections. The pharmacokinetic cross-over study was carried out on 6 healthy male beagle dogs. Tramadol was administered by intravenous (IV) and intramuscular (IM) injection at 4 mg/kg. Tramadol and its main metabolites O-desmethyl-tramadol (M1), N-,N-didesmethyl-tramadol (M2) and N-,O-didesmethyl-tramadol (M5) concentrations were measured in plasma samples by a HPLC coupled with fluorimetric detection; pharmacokinetic evaluations were carried out with a compartmental and non-compartmental model for tramadol and its metabolites, respectively. The bioavailability of the drug, ranging between 84-102% (mean 92%), was within the generally accepted values for a positive bioequivalence decision of (80-125%). After the IM injection the mean plasma drug concentration peak was reached after a Tmax of 0.34 h with a Cmax of 2.52 μg/mL. No therapeutic relevant differences were observed between IM and IV administration. The minimal effective plasma concentration was reached after a few minutes and maintained for about 6-7 h in both administrations. M1 plasma concentration was low and the amounts of the other metabolites produced were analogous in both routes of administration. In conclusion, tramadol was rapidly and almost completely absorbed after IM administration and its systemic availability was equivalent to the IV injection. The different onset time and duration of action observed were very small and probably therapeutically irrelevant. The IM injection is a useful alternative to IV injection in the dog.
Źródło:
Polish Journal of Veterinary Sciences; 2010, 13, 4
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pharmacokinetic profiles of 5 mg/kg ibudilast, a phosphodiesterase inhibitor, orally administered to dogs in fasted and non-fasted states. A preliminary study.
Autorzy:
Łebkowska-Wieruszewska, B.
De Vito, V.
Kowalski, C.J.
Owen, H.
Poapolathep, A.
Lisowski, A.
Giorgi, M.
Powiązania:
https://bibliotekanauki.pl/articles/2087742.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
pharmacokinetics
ibudilast
dog
non-selective cyclic nucleotide phosphodiesterase inhibitor
Źródło:
Polish Journal of Veterinary Sciences; 2018, 21, 2; 281-285
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zdalne monitorowanie i diagnostyka napędów przekształtnikowych przy wykorzystaniu sieci Ethernet
Remote monitoring and diagnostics of converter fed induction motor drives using Ethernet
Autorzy:
Kowalski, C. T.
Lis, J.
Powiązania:
https://bibliotekanauki.pl/articles/2077255.pdf
Data publikacji:
2007
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Napędów i Maszyn Elektrycznych Komel
Tematy:
diagnostyka napędów przekształtnikowych
silnik indukcyjny
napęd przekształtnikowy
Ethernet
zdalne monitorowanie
Opis:
The paper deals with the remote monitoring of a converter fed induction motor drive via Ethernet using the Lab VIEW environment. In order to address this challenge a complex solution is proposed concerning both hardware (laboratory set-up design) and software layer (the consumer, distributor and producer's application). Techniques for remote monitoring of a converter fed induction motor drive's operation are discussed. The results of the experimental tests are presented.
Źródło:
Maszyny Elektryczne: zeszyty problemowe; 2007, 77; 129-134
0239-3646
2084-5618
Pojawia się w:
Maszyny Elektryczne: zeszyty problemowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sterowanie silnikiem indukcyjnym z wykorzystaniem układu reprogramowalnego FPGA
Induction motor control using reconfigurable FPGA system
Autorzy:
Lis, J.
Kowalski, C. T.
Powiązania:
https://bibliotekanauki.pl/articles/2077274.pdf
Data publikacji:
2007
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Napędów i Maszyn Elektrycznych Komel
Tematy:
sterowanie silnikiem indukcyjnym
silnik indukcyjny
FPGA
algorytm CORDIC
Opis:
The paper deals with the application of the reconfigurable system i.e. FPGA matrix to the induction motor control. The classical approach based on the microcontroller technique, in which the control algorithms are sequentially executed, has been compared with the FPGA application capable of performing parallel calculations. The algorithms and techniques enabling implementation of SVM vector modulation in FPGA are presented. The coordinates' transformations have conducted by means of the CORDIC algorithm. The discussion of the laboratory tests' results takes advantage of the simple scalar control system. The Xilinx Virtex II by National Instruments was used.
Źródło:
Maszyny Elektryczne: zeszyty problemowe; 2007, 77; 135-141
0239-3646
2084-5618
Pojawia się w:
Maszyny Elektryczne: zeszyty problemowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ chropowatości podłoża na topografię warstw TiO2 i SiO2 nakładanych metodą zol-żel
Influence of substrate roughness on TiO2 and SiO2 coating topography coated by funcional sol-gel derived layers
Autorzy:
Będziński, R.
Filipiak, J.
Pezowicz, C.
Krzak-Roś, J.
Kowalski, M.
Powiązania:
https://bibliotekanauki.pl/articles/285966.pdf
Data publikacji:
2008
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
implanty
ortopedia
metoda zol-żel
implants
orthopaedics
sol-gel method
Źródło:
Engineering of Biomaterials; 2008, 11, no. 81-84; 87-89
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fe 3d Contribution to Hg$\text{}_{1-x}$Fe$\text{}_{x}$Se Valence Band by Means of Angle-Resolved Photoemission
Autorzy:
Orłowski, B. A.
Bonnet, J.
Hricovini, C.
Pinchaux, R.
Górecka, J.
Kowalski, B. J.
Mycielski, A.
Powiązania:
https://bibliotekanauki.pl/articles/1890985.pdf
Data publikacji:
1991-09
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
71.20.Fi
79.60.Eq
Opis:
The Angle-Resolved Photoemission Electron Spectroscopy (AR PES) was applied to investigate the electronic structure of HgSe and Hg$\text{}_{1-x}$Fe$\text{}_{x}$Se crystals for (110) surface. The measured set of Angle-Resolved Energy Distribution Curves (AR EDCs) permits to determine some of the elements of the electronic band structure E(k) (energy-momentum dependence for ҐKX and ҐX directions in the Brillouin zone) for measured crystals. The Fe 3d contribution gives the states lying over the edge of the valence band of HgSe crystal (0.25 eV), and into the valence band.
Źródło:
Acta Physica Polonica A; 1991, 80, 3; 389-392
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cd$\text{}_{1-x}$Fe$\text{}_{x}$Se/Fe Interface Formation Observed by Means of Photoemission Spectroscopy
Autorzy:
Guziewicz, E.
Orłowski, B. A.
Kowalski, B. J.
Barrett, N.
Martinotti, D.
Guillot, C.
Lacharme, J.-P.
Sebenne, C. A.
Powiązania:
https://bibliotekanauki.pl/articles/1950803.pdf
Data publikacji:
1996-10
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
73.20.-r
79.60.Jv
Opis:
We present a new outlook at the study of metal-semiconductor interface formation. A resonant photoemission spectroscopy tuned to the Fe 3p-3d transition (56 eV) was used to investigate the changes after sequential deposition of Fe atoms on freshly cleaved Cd$\text{}_{0.86}$Fe$\text{}_{0.14}$Se crystal surface. In the first stages (0.6-4 ML) of Fe deposition the contribution of Fe 3d electrons to the valence band grows up markedly indicating the increase in Fe content in the Cd$\text{}_{0.86}$Fe$\text{}_{0.14}$Se crystal surface region. When the amount of Fe exceed 40 ML the resonant photoemission spectra became similar to the Fe metal with some contribution of the ternary crystal substrate.
Źródło:
Acta Physica Polonica A; 1996, 90, 4; 805-808
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Resonant Photoemission Study of Sn$\text{}_{0.96}$Gd$\text{}_{0.04}$Te
Autorzy:
Orlowski, N.
Janowitz, C.
Müller, A.
Manzke, R.
Kowalski, B. J.
Orłowski, B. A.
Powiązania:
https://bibliotekanauki.pl/articles/1963395.pdf
Data publikacji:
1997-05
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
75.50.Pp
79.60.-i
Opis:
Sn$\text{}_{0.96}$Gd$\text{}_{0.04}$Te has been studied by means of the resonant photoemission spectroscopy in the constant final states, constant initial states and energy distribution curves modes. In the constant final states spectrum of the well-known giant resonance at the 4d-4f threshold around 150 eV we were able to resolve a peak of the multiplet structure that has not previously been found. Spectra were also taken at the 4p-5d threshold around 280 eV revealing a double structure with antiresonating behaviour.
Źródło:
Acta Physica Polonica A; 1997, 91, 5; 847-850
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Młoda geologia w Polsce : historia i działalność studenckich kół naukowych geologów
Young geology in Poland : history and recent activity of student research group of geologists
Autorzy:
Kowalski, A.
August, C.
Jakus, N.
Ozimkowski, W.
Paca, P.
Raczko, J.
Sauermann, J.
Senderak, K.
Urbanek, P.
Zając, M.
Zboińska, K.
Powiązania:
https://bibliotekanauki.pl/articles/2075529.pdf
Data publikacji:
2016
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
organizacje studenckie
studenckie koło naukowe
młoda geologia
Polska
student organizations
student research groups
young geology
Polska
Opis:
Student scientific organizations and research groups create numerous opportunities for the development of interests and passions related to many fields of science. In case of geological sciences, student research groups are organizations which are conducive to exchanging first scientific ideas between young geologists and experienced researchers. These associations constitute also a generational bridge between students and their teachers. The beginnings of the firstformal organizations of geology students date back to the second halfof the 1940s and 1950s. Due to the nature of geological studies, membership in scientific circles, is associatedfrom the beginning of their activities with many research trips and participation in conferences. This paper aims at presenting the history and contemporary activity of geological student research groups in Poland. We describedfive organizations, whose activities constitute an integral part of geological studies in our country. Authors wish to remind distinguished teachers and members of student research groups, who contributed to their development in a special way.
Źródło:
Przegląd Geologiczny; 2016, 64, 9; 766--770
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of Yb on Valence Band Density of States of CdYbTe and PbYbTe - a Resonant Photoemission Study
Autorzy:
Szamota-Sadowska, K.
Kowalski, B. J.
Guziewicz, E.
Orłowski, B. A.
Sadowski, J.
Gołacki, Z.
Ghijsen, J.
Johnson, R. L.
Belkhou, R.
Radosavkič, D.
Martinotti, D.
Barrett, N.
Guillot, C.
Powiązania:
https://bibliotekanauki.pl/articles/1952185.pdf
Data publikacji:
1996-11
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
61.72.Vv
Opis:
Photoemission measurements using synchrotron radiation were performed on PbYbTe (bulk crystal) and CdYbTe (MBE thin film). The resonant enhancement of the photoemission was applied for investigation of the contribution of Yb 4f electrons to the valence band. The set of the energy distribution curves was collected for energies in the region close to the 4d-4f Fano transition. The Yb 4f$\text{}^{14}$ were observed at the binding energies close to the edge of the valence band while the 4f$\text{}^{13}$ states were revealed deep in the valence band.
Źródło:
Acta Physica Polonica A; 1996, 90, 5; 943-946
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Method to Produce Linearly Polarized Positrons and Positronium Atoms with the J-PET Detector
Autorzy:
Mohammed, Muhsin
Białas, P.
Curceanu, C.
Czerwiński, E.
Dulski, K.
Gajos, A.
Głowacz, B.
Gorgol, M.
Hiesmayr, B.
Jasińska, B.
Kisielewska, D.
Korcyl, G.
Kowalski, P.
Kozik, T.
Krawczyk, N.
Krzemień, W.
Kubicz, E.
Pawlik-Niedźwiecka, M.
Niedźwiecki, S.
Pałka, M.
Raczyński, L.
Raj, J.
Rudy, Z.
Sharma, N.
Sharma, S.
Shivani, ---
Skurzok, M.
Silarski, M.
Wieczorek, A.
Wiślicki, W.
Zgardzińska, B.
Zieliński, M.
Moskal, P.
Powiązania:
https://bibliotekanauki.pl/articles/1030045.pdf
Data publikacji:
2017-11
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
41.75.Fr
41.75.Ht
77.22.Ej
36.10.Dr
85.75.Mm
87.57.uk
Opis:
A method for creating linearly polarized positrons and ortho-positronium (o-Ps) atoms with the J-PET detector is presented. The unique geometry and properties of the J-PET tomography enable one to design a positron source such that the quantization axis for the estimation of the linear polarization of produced o-Ps can be determined on the event by event basis in a direction of the positron motion. We intend to use ²²Na or other β⁺ decay isotopes as a source of polarized positrons. Due to the parity violation in the beta decay, the emitted positrons are longitudinally polarized. The choice of the quantization axis is based on the known position of the positron emitter and the reconstructed position of the positronium annihilation. We show that the J-PET tomography is equipped with all needed components.
Źródło:
Acta Physica Polonica A; 2017, 132, 5; 1486-1489
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis Procedure of the Positronium Lifetime Spectra for the J-PET Detector
Autorzy:
Dulski, K.
Zgardzińska, B.
Białas, P.
Curceanu, C.
Czerwiński, E.
Gajos, A.
Głowacz, B.
Gorgol, M.
Hiesmayr, B.
Jasińska, B.
Kisielewska-Kamińska, D.
Korcyl, G.
Kowalski, P.
Kozik, T.
Krawczyk, N.
Krzemień, W.
Kubicz, E.
Mohammed, Muhsin
Pawlik-Niedźwiecka, M.
Niedźwiecki, S.
Pałka, M.
Raczyński, L.
Raj, J.
Rudy, Z.
Sharma, N.
Sharma, S.
Shivani, Shivani
Shopa, R.
Silarski, M.
Skurzok, M.
Wieczorek, A.
Wiślicki, W.
Zieliński, M.
Moskal, P.
Powiązania:
https://bibliotekanauki.pl/articles/1033298.pdf
Data publikacji:
2017-11
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
07.05.Kf
13.30.Ce
14.60.-z
78.47.-p
Opis:
Positron annihilation lifetime spectroscopy has shown to be a powerful tool to study the nanostructures of porous materials. Positron emission tomograph is a device allowing imaging of metabolic processes e.g. in human bodies. A newly developed device, the Jagiellonian PET will allow positron annihilation lifetime spectroscopy in addition to imaging, thus combining both analyses providing new methods for physics and medicine. In this contribution we present a computer program that is compatible with the Jagiellonian PET software. We compare its performance with the standard program LT 9.0 by using positron annihilation lifetime spectroscopy data from hexane measurements at different temperatures. Our program is based on an iterative procedure, and our fits prove that it performs as good as LT 9.0.
Źródło:
Acta Physica Polonica A; 2017, 132, 5; 1637-1640
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 18

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