Autor: Lichota, A. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Evaluation of antioxidant activity of NG-R1 saponin against bacterial cells in induced oxidative stress - a preliminary study
Autorzy:: Lichota, A.
Sienkiewicz, M.
Powiązania:: https://bibliotekanauki.pl/articles/28761653.pdf
Data publikacji:: 2023
Wydawca:: Instytut Medycyny Wsi
Źródło:: Annals of Agricultural and Environmental Medicine; 2023, 30, 1; 83-89
1232-1966
Pojawia się w:: Annals of Agricultural and Environmental Medicine
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Root surface temperature rise of mandibular first molar during root canal filling with high-temeperature thermoplasticized Gutta-Percha in the dog
Autorzy:: Lipski, M.
Wozniak, K.
Lichota, D.
Nowicka, A.
Powiązania:: https://bibliotekanauki.pl/articles/31804.pdf
Data publikacji:: 2011
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:: This in vitro study evaluated the temperature rise on the outer root surface of the mandibular first molar following root canal filling using the high-temperature, thermoplasticized, Gutta-Percha technique (HTTG) (BeeFill) in the dog. Twelve extracted dog mandibular first molars were used. After root canal preparation, the teeth were filled with thermoplasticized Gutta-Percha and root canal sealer. Temperature changes on the vestibular surfaces of the mesial and distal roots of mandibular first molars were measured using a thermal imaging camera. The results of this in vitro study showed that using HTTG to fill mandibular first molars in dogs produces a safe temperature rise on the root surface and, therefore, should not damage the periodontal ligament and/or surrounding tissues.
Źródło:: Polish Journal of Veterinary Sciences; 2011, 14, 4
1505-1773
Pojawia się w:: Polish Journal of Veterinary Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Enhancement of Heat Transfer in PCM by Cellular Zn-Al Structure
Autorzy:: Naplocha, K.
Koniuszewska, A.
Lichota, J.
Kaczmar, J. W.
Powiązania:: https://bibliotekanauki.pl/articles/382339.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: innovative foundry technology
innovative foundry material
metal cellular foam
porous Zn-Al structure
investment casting
heat transfer
innowacyjna technologia odlewnicza
innowacyjny materiał odlewniczy
pianka metalowa
struktura porowata Zn-Al
odlewanie precyzyjne
wymiana ciepła
Opis:: Development of open cellular metal foam technology based on investment casting applying the polyurethane pattern is discussed. Technological process comprises preparing of the ceramic mold applying PUR foam as the pattern, firing of the mold, pouring of the liquid Zn-Al alloy into the mold and washing out of the ceramic material from cellular casting. Critical parameters such as the temperature of mold and poured metal, design of gating system affected by metalostatic pressure allowed to produce castings with cellular structure characterized by the open porosity. Metal cellular foams with the open porosity embedded in phase change material (PCM) enhance heat transfer and reduce time operations in energy storage systems. Charging and discharging were performed at the laboratory accumulator by heating and cooling with flowing water characterized by the temperatures of 97-100ºC. Temperature measurements were collected from 7 different thermocouples located in the accumulator. In relation to the tests with pure paraffin, embedding of the metal Zn-Al cellular foam in paraffin significantly decreases temperature gradients and melting time of paraffin applied as PCM characterized by the low thermal conductivity. Similarly, reduction of discharging time by this method improves the efficiency of thermal energy storage system applied in solar power plants or for the systems of energy efficient buildings.
Źródło:: Archives of Foundry Engineering; 2016, 16, 4; 91-94
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Power spectrum optimization in the design of multisine manoeuvre for identification purposes
Autorzy:: Lichota, P.
Szulczyk, J.
Noreña, D. A.
Vallejo Monsalve, F. A.
Powiązania:: https://bibliotekanauki.pl/articles/279485.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:: flight dynamics
optimal input design
multisine excitations
system identification
least squares
maximum likelihood
Opis:: In this paper, two sets of multisine signals are designed for system identification purposes. The first one is obtained without any information about system dynamics. In the second case, the a priori information is given in terms of dimensional stability and control derivatives. Magnitude Bode plots are obtained to design the multisine power spectrum that is optimized afterwards. A genetic algorithm with linear ranking, uniform crossover and mutation operator has been employed for that purpose. Both designed manoeuvres are used to excite the aircraft model, and then system identification is performed. The estimated parameters are obtained by applying two methods: Equation Error and Output Error. The comparison of both investigated cases in terms of accuracy and manoeuvre time is presented afterwards.
Źródło:: Journal of Theoretical and Applied Mechanics; 2017, 55, 4; 1193-1203
1429-2955
Pojawia się w:: Journal of Theoretical and Applied Mechanics
Dostawca treści:: Biblioteka Nauki