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    Tytuł:
    Styrene oxidation by copper(II) complexes salen-type encapsulated into NaY zeolite
    Katalityczne utlenianie styrenu w obecności kompleksów miedzi(II) typu salen osadzonych na zeolicie NaY
    Autorzy:
    Kuźniarska-Biernacka, I.
    Carvalho, M. A.
    Correia Neves, I.
    Fonseca, A. M.
    Lisińska-Czekaj, A.
    Czekaj, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/352679.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    copper(II) complexes
    Schiff base
    NaY zeolite
    kompleksy miedzi(II)
    zasada Schiffa
    zeolit NaY
    Opis:
    The copper(II) complex with a Schiff-base salen-type ligand has been encapsulated in the nanopores of a NaY zeolite by using two different methodologies, the flexible ligand and in situ complex preparation methods. The encapsulated and non-encapsulated copper(II) complexes were screened as catalysts for styrene oxidation by using TBHP as the oxygen source in acetonitrile solvent. Under the optimized conditions, the catalysts exhibited moderate activity with higher selectivity to benzaldehyde. Both heterogeneous catalysts were found to be reusable after the catalytic cycle, but with some loss of activity.
    Osadzenie kompleksu miedzi(II) z zasadą Schiffa typu salen na zeolicie typu NaY zostało przepowadzone za pomocą dwóch metod „flexible ligand" i „in situ”. Katalityczne właściwości otrzymanego kompleksu oraz jego heterogenizowanych analogów badano w reakcji utleniania styrenu w obecności TBHP. Jako rozpuszczalnik stosowano acetonitryl. Testowane katalizatory wykazują średnią aktywność katalityczną z tendencją wytwarzania aldehy du benzoesowego. Oba heterogenizowane katalizatory mogą być wykorzystywane ponownie bez utraty aktywności katalitycznych.
    Źródło:
    Archives of Metallurgy and Materials; 2013, 58, 4; 1291-1294
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A crisis management approach to mission survivability in computational multi-agent systems
    Utrzymanie krytycznych zadań oparte na zarządzaniu kryzysowym w obliczeniowych systemach wieloagentowych
    Autorzy:
    Byrski, A.
    Kisiel-Dorohinicki, M.
    Carvalho, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/305626.pdf
    Data publikacji:
    2010
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    systemy agentowe
    zarządzanie kryzysowe
    soft computing
    agent systems
    crisis management
    Opis:
    In this paper we present a biologically-inspired approach for mission survivability (considered as the capability of fulfilling a task such as computation) that allows the system to be aware of the possible threats or crises that may arise. This approach uses the notion of resources used by living organisms to control their populations. We present the concept of energetic selection in agent-based evolutionary systems as well as the means to manipulate the configuration of the computation according to the crises or user's specific demands.
    W artykule prezentujemy biologicznie inspirowany mechanizm wspomagający utrzymanie krytycznych zadań (tzw. mission survivability) który umożliwia wykrywanie oraz przeciwdziałanie wybranym zagrożeniom. Przedstawione podejście wzorowane jest na wykorzystywaniu przez żywe organizmy zasobów do kontroli populacji. Prezentujemy koncepcje selekcji energetycznej mającej zastosowanie w ewolucyjnych systemach wieloagentowych (EMAS) oraz sposoby konfiguracji obliczenia w celu przeciwdziałania sytuacjom kryzysowym, według preferencji użytkownika.
    Źródło:
    Computer Science; 2010, 11; 99-113
    1508-2806
    2300-7036
    Pojawia się w:
    Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Sound, Noise and Speech at the 9000-Seat Holy Trinity Church in Fatima, Portugal
    Autorzy:
    Carvalho, A. P. O.
    Silva, P. M. A.
    Powiązania:
    https://bibliotekanauki.pl/articles/177982.pdf
    Data publikacji:
    2010
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    church
    acoustics
    Rapid Speech Transmission Index (RASTI)
    reverberation time
    Opis:
    This paper presents the interior acoustical characterization of the 9,000-seat church of the Holy Trinity in the Sanctuary of Fátima, Portugal, inaugurated in 2007. In situ measurements were held regarding interior sound pressure levels (with and without the HVAC equipment working), NC curves, RASTI (with and without the installed sound system) and reverberation time. The results are presented and commented according to the design values. A comparison is made with other churches in the world, also with a very large volume (for instance the Basilica Mariacka in Gdansk). The measured data are also used to calculate a global index of this church acoustic quality using Engel’s and Kosała's Index Method.
    Źródło:
    Archives of Acoustics; 2010, 35, 2; 145-156
    0137-5075
    Pojawia się w:
    Archives of Acoustics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Acute evaluation of static and dynamic stability of the lumbopelvic region after paravertebral stretching
    Autorzy:
    Coracini, C.A.
    Bortoletto, P.
    Provensi, E.
    Furtuoso, M.V.
    Bertolini, G.R.F.
    Carvalho, A.R.
    Powiązania:
    https://bibliotekanauki.pl/articles/2098560.pdf
    Data publikacji:
    2021
    Wydawca:
    Instytut Medycyny Wsi
    Tematy:
    muscle stretching exercises
    muscle relaxation
    muscle strength
    Opis:
    Introduction and objectives. Since the paravertebral muscles promote dynamic stability to protect the spine, the aim of this study was to verify the association between the acute effect of the stretching support time for the multifidus muscle, and changes in the static and dynamic stability of the lumbopelvic region. Materials and method. A total of 46 volunteers were cross-submitted to three different stretching interventions for the multifidus muscle, being the manutention of stretching time the variation between interventions: 10, 30 and 60 seconds. Each volunteer was submitted to the three interventions with a minimum interval of 7 days and a maximum of 10 days. The order of the interventions was determined by lot. First, pre-intervention values for static and dynamic stability were collected using a biofeedback pressure unit. Subsequently, the sample was forwarded for intervention according to its group; after the completion of the same, data were collected on post-intervention stability. The data were analyzed using SPSS 20.0 software and Chi-square test, with a significance level of 5% (α = 0.05). Results. There was no significant association between the manutention of stretching time and static stability, being χ2(4)=0.812; p=0.949. Similarly, there was no significant association between the stretching support time and dynamic stability, and χ2(4)=1.517; p=0.827. Conclusion. In conclusion, there was no significant association between stretching time of the paravertebral muscles and static and dynamic stability.
    Źródło:
    Journal of Pre-Clinical and Clinical Research; 2019, 13, 4; 150-152
    1898-2395
    Pojawia się w:
    Journal of Pre-Clinical and Clinical Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Screening of the aerodynamic and biophysical properties of barley malt
    Autorzy:
    Ghodsvali, A.
    Farzaneh, V.
    Bakhshabadi, H.
    Zare, Z.
    Karami, Z.
    Mokhtarian, M.
    Carvalho, I.S.
    Powiązania:
    https://bibliotekanauki.pl/articles/25691.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Opis:
    An understanding of the aerodynamic and biophysical properties of barley malt is necessary for the appropriate design of equipment for the handling, shipping, dehydration, grading, sorting and warehousing of this strategic crop. Malting is a complex biotechnological process that includes steeping; germination and finally, the dehydration of cereal grains under controlled temperature and humidity conditions. In this investigation, the biophysical properties of barley malt were predicted using two models of artificial neural networks as well as response surface methodology. Stepping time and germination time were selected as the independent variables and 1 000 kernel weight, kernel density and terminal velocity were selected as the dependent variables (responses). The obtained outcomes showed that the artificial neural network model, with a logarithmic sigmoid activation function, presents more precise results than the response surface model in the prediction of the aerodynamic and biophysical properties of produced barley malt. This model presented the best result with 8 nodes in the hidden layer and significant correlation coefficient values of 0.783, 0.767 and 0.991 were obtained for responses one thousand kernel weight, kernel density, and terminal velocity, respectively. The outcomes indicated that this novel technique could be successfully applied in quantitative and qualitative monitoring within the malting process.
    Źródło:
    International Agrophysics; 2016, 30, 4
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Preliminary study of hot mix asphalt containing water treatment and sewage sludge
    Autorzy:
    Bastidas-Martínez, J. G.
    Camapum de Carvalho, J.
    Lucena, L. C.
    Farias, M. M.
    Rondón-Quintana, H. A.
    Powiązania:
    https://bibliotekanauki.pl/articles/230585.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    osad
    uzdatnianie wody
    osad ściekowy
    wypełniacz mineralny
    mieszanka asfaltowa gorąca
    water treatment
    sludge
    sewage sludge
    mineral filler
    hot mix asphalt
    Opis:
    Throughout the world, considerable quantities of water treatment sludge (WTS) and sewage sludge (SS) are produced as waste. This study assessed in the laboratory, the possibility to use both waste products when they are incorporated as filler at 1% with relation to the total mass of a hot mix asphalt - HMA. To this end, both waste products were initially reduced to ash through a calcination process. Resistance tests under monotonic load (Marshall and indirect tension tests), and cyclic load (resilient modulus test) were applied on mixes that contained WTS and SS. Besides, moisture damage (modified Lotmman test), and abrasion (Cantabro) resistance were assessed. An analysis of variance (ANOVA) test was performed in order to verify if the results are statically equal or not to those of the control HMA. As a general conclusion, it is reported that both materials show a resistance increase under monotonic load and higher stiffness under cyclic load (cohesion) when they are incorporated into the mix as filler despite the fact that the asphalt content used was less than the control mix. However, some problems are observed associated with moisture damage resistance, and friction wear (adherence).
    Źródło:
    Archives of Civil Engineering; 2020, 66, 1; 225-240
    1230-2945
    Pojawia się w:
    Archives of Civil Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Hybrid optimization process applied to tuning of Dynamic Matrix Control: atudy case with DC motor
    Autorzy:
    Carvalho, D. F. de
    Ganzaroli, C. A.
    Couto, L. do
    Dias, R. N. H. M.
    Calixto, W. P.
    Powiązania:
    https://bibliotekanauki.pl/articles/136171.pdf
    Data publikacji:
    2017
    Wydawca:
    EEEIC International Barbara Leonowicz Szabłowska
    Tematy:
    predictive control
    deterministic optimization
    heuristic optimization
    hybrid optimization
    DC motor
    Opis:
    This paper presents study about Dynamic Matrix Control (DMC) controller applied to speed control of DC motor. DMC controller parameters (prediction horizon, control horizon and damping rate of reference) are obtained through optimization methods employing heuristic, deterministic and hybrid strategies. The use of advanced control technique combined with using of optimization methods aims to achieve highly efficient control, reducing the transient state period and variations in steady state. These methods were applied on a simulation model in order to verify which one provides better control results.
    Źródło:
    Transactions on Environment and Electrical Engineering; 2017, 2, 2; 24-30
    2450-5730
    Pojawia się w:
    Transactions on Environment and Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Redox state modulation in rice and its implications for plant development and stress responses
    Autorzy:
    Caverzan, A.
    Ribeiro, C.
    Lazzarotto, F.
    Passaia, G.
    Rosa, S.
    Garighan, J.
    Piovesana, M.
    Carvalho, F.
    Albenisio, J.
    Margis, R.
    Margis-Pinheiro, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/79908.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    conference
    reactive oxygen species
    scavenging enzyme
    detoxification
    redox state
    rice
    plant development
    stress response
    plant cell
    biochemical property
    antioxidative enzyme
    ascorbate peroxidase
    glutathione peroxidase
    Źródło:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 2
    0860-7796
    Pojawia się w:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Peanut allergy as a tigger for the deterioration of atopic dermatitis and precursor of staphylococcal and herpetic associated infections - case report
    Autorzy:
    de Carvalho Ferreira, D.
    Abad, E.D.
    Cavalcante, F.S.
    dos Santos, F.M.
    Saintive, S.
    Goudoris, E.
    do Prado, E.A.
    Ribeiro, M.
    Rosado, A.S.
    van Elsas, J.D.
    dos Santos, K.R.N.
    Powiązania:
    https://bibliotekanauki.pl/articles/51908.pdf
    Data publikacji:
    2015
    Wydawca:
    Instytut Medycyny Wsi
    Źródło:
    Annals of Agricultural and Environmental Medicine; 2015, 22, 3
    1232-1966
    Pojawia się w:
    Annals of Agricultural and Environmental Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis and glycosyl composition of the exopolysaccharide isolated from submerged fermentation of Ganoderma lucidum CG144
    Autorzy:
    Rubel, R.
    Freire dos Santos, L.
    Stutz Dalla Santa, H.
    Porto de Souza Vandenberghe, L.
    Wojciechowski, A.L.
    de Carvalho, J.C.
    Habu, S.
    Destefanis Vitola, F.M.
    Augur, C.
    Soccol, C.R.
    Powiązania:
    https://bibliotekanauki.pl/articles/56735.pdf
    Data publikacji:
    2014
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    glycosyl composition
    exopolysaccharide
    isolation
    submerged fermentation
    Ganoderma lucidum
    heteroglycan
    herbal medicine
    Chinese medicine
    Opis:
    The evaluation of glycosyl composition is an essential step to guide future research designs applied in bioactivity. In the same way, the unexplored potential bioactivity of exopolysaccharide from Ganoderma lucidum is huge. Therefore, this study investigated the glycosyl composition of the exopolysaccharide isolated from submerged fermentation of G. lucidum to serve as guide for future studies on bioactivity. Glycosyl content and composition were evaluated by combined GC/ MS of the TMS derivatives of the monosaccharide methyl glycosides produced from the sample by acidic methanolysis. Glycosyl composition analysis showed that the dominant carbohydrate component in all samples of exopolysaccharide isolated from submerged fermentation of G. lucidum CG 144 was glucose (58.1%), mannose (26.6%) and galactose (12.5%) which can be referred to as heteroglycan. These results suggest that this Ganoderma exopolysaccharide may be a new immunomodulatory agent.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2014, 83, 3
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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