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Wyszukujesz frazę "Kovács, M." wg kryterium: Autor

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    Wyświetlanie 1-11 z 11
    Tytuł:
    Function of S-nitrosoglutathione in NPR1-dependent defence response
    Autorzy:
    Kovacs, I.
    Wirtz, M.
    Lindermayr, C.
    Powiązania:
    https://bibliotekanauki.pl/articles/80390.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    conference
    nitric oxide
    germination
    root development
    flowering
    abiotic stress
    defense response
    S-nitrosoglutathione
    glutathione
    plant cell
    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:
    Simulation of complex logistical service processes
    Autorzy:
    Gubán, M.
    Kovács, G.
    Kot, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/406845.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    fluid flow
    process improvement
    mathematical model
    simulation
    Opis:
    The world around us is a very complex and multi-parametric system, like the weather, traffic, operation of machines, production processes, service processes, etc. Understanding of the characteristics, operation and behaviour of these systems and processes is not easy due to their complexity. The design of optimal production and service procedures is an essential task for planners. The target is the increasing of the efficiency of the production and service and analysis of the effect of parameter changing. There are lot of tools and sophisticated methods for design, analysis and improvement of logistical processes. The most often used analysis tool is the simulation in the production processes. Our aim in this article is to show that the simulation can be used efficiently in case of analysis of service processes, not only in case of production processes. The simulation is available for bottleneck analysis of service activities not only for production processes. In this study the simulation of a service process was realized by the AnyLogic software. The relevance of the simulation technique for analysis of complex service processes is proved by a case study of a service and maintenance activity of a multinational shopping centre.
    Źródło:
    Management and Production Engineering Review; 2017, 8, 2; 19-29
    2080-8208
    2082-1344
    Pojawia się w:
    Management and Production Engineering Review
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Complex analysis of uniaxial compressive tests of the Mórágy granitic rock formation (Hungary)
    Autorzy:
    Davarpanah, M.
    Somodi, G.
    Kovács, L.
    Vásárhelyi, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/178552.pdf
    Data publikacji:
    2019
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    uniaxial compressive test
    modulus ratio
    maximum axial strain
    crack damage stress
    crack initiation stress
    Mórágy granite formation
    Opis:
    Understanding the quality of intact rock is one of the most important parts of any engineering projects in the field of rock mechanics. The expression of correlations between the engineering properties of intact rock has always been the scope of experimental research, driven by the need to depict the actual behaviour of rock and to calculate most accurately the design parameters. To determine the behaviour of intact rock, the value of important mechanical parameters such as Young’s modulus (E), Poisson’s ratio (v) and the strength of rock (σcd) was calculated. Recently, for modelling the behaviour of intact rock, the crack initiation stress (σci) is another important parameter, together with the strain (ɛ). The ratio of Young’s modulus and the strength of rock is the modulus ratio (MR), which can be used for calculations. These parameters are extensively used in rock engineering when the deformation of different structural elements of underground storage, caverns, tunnels or mining opening must be computed. The objective of this paper is to investigate the relationship between these parameters for Hungarian granitic rock samples. To achieve this goal, the modulus ratio (MR = E/σc) of 50 granitic rocks collected from Bátaapáti radioactive waste repository was examined. Fifty high-precision uniaxial compressive tests were conducted on strong (σ c >100 MPa) rock samples, exhibiting the wide range of elastic modulus (E = 57.425–88.937 GPa), uniaxial compressive strength (σc = 133.34–213.04 MPa) and Poisson’s ratio (v= 0.18– 0.32). The observed value (MR = 326–597) and mean value of MR = 439.4 are compared with the results of similar previous researches. Moreover, the statistical analysis for all studied rocks was performed and the relationship between MR and other mechanical parameters such as maximum axial strain (ɛa, max) for studied rocks was discussed.
    Źródło:
    Studia Geotechnica et Mechanica; 2019, 41, 1; 21-32
    0137-6365
    2083-831X
    Pojawia się w:
    Studia Geotechnica et Mechanica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Dosimetric properties of gammaand electron-irradiated commercial window glasses
    Autorzy:
    Fuochi, P.
    Corda, U.
    Lavalle, M.
    Kovács, A.
    Baranyai, M.
    Mejri, A.
    Farah, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/146494.pdf
    Data publikacji:
    2009
    Wydawca:
    Instytut Chemii i Techniki Jądrowej
    Tematy:
    silicate glass
    gamma rays
    electron beam
    optical absorption
    dosimeter
    fading behaviour
    Opis:
    Two different types of window glasses have been investigated as possible routine dosimeters in the range of 1-50 kGy. Glass samples were irradiated with 3.4 MeV and 8.4 MeV electron beams and the results compared with those obtained by 60Co gamma irradiation. Due to the strong optical absorption at wavelengths ess than 310 nm, even at low doses, optical measurements were limited to the range 320-700 nm. In both types of glasses, irradiation induced two absorption bands around 410 and 600 nm the intensities of which are proportional to dose; the 600 nm band being less sensitive to radiation. These bands have been attributed to non bridging oxygen hole centres existing in two different configurations. Because of the rapid fading of the optical absorbance observed at room temperature immediately after irradiation (greater than 15% in two days), the samples underwent a post-irradiation thermal treatment (150 graduate C for 20 min) to improve the stability of absorbance. The fading characteristics of the irradiated and thermally treated glasses, kept in the dark at room temperature, were studied for several weeks. A fast decay, whose intensity depends on the type and energy of the ionizing radiation, was observed for few days after irradiation and thermal treatment, followed by a much slower decay. The results show that this kind of material could be used as routine dosimeters within a certain dose range, as long as proper calibrations are made for each batch of glass and the appropriate precautions are taken when doing calibration and performing routine dosimetry.
    Źródło:
    Nukleonika; 2009, 54, 1; 39-43
    0029-5922
    1508-5791
    Pojawia się w:
    Nukleonika
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Redox-regulation of S-nitrosoglutathione reductase
    Autorzy:
    Holzmeister, C.
    Kovacs, I.
    Romling, G.
    Wirtz, M.
    Durner, J.
    Lindermayr, C.
    Powiązania:
    https://bibliotekanauki.pl/articles/80722.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    conference
    nitric oxide
    signalling molecule
    S-nitrosoglutathione
    protein
    glutathione level
    redox signalling
    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:
    Morphological and physiological characterization of the delta-psaL mutant of cyanobacterium Synechocystis PCC6803
    Autorzy:
    Klodawska, K.
    Kis, M.
    Malec, P.
    Kovacs, L.
    Gombos, Z.
    Strzalka, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/81106.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    conference
    Cyanoprokaryota
    prokaryotic organism
    photosynthesis
    photosystem
    thylakoid membrane
    plastoquinone
    plastocyanin
    cytochrome C
    biotic stress
    abiotic stress
    Synechocystis
    delta-psaL mutant
    physiological characteristics
    morphological characteristics
    Źródło:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 3
    0860-7796
    Pojawia się w:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Preliminary results of radon survey in thermal spas in V4 countries
    Autorzy:
    Műllerová, M.
    Mazur, J.
    Blahušiak, P.
    Grządziel, D.
    Holý, K.
    Kovács, T.
    Kozak, K.
    Nagy, E.
    Neznal, M.
    Shahrokhi, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/146825.pdf
    Data publikacji:
    2016
    Wydawca:
    Instytut Chemii i Techniki Jądrowej
    Tematy:
    indoor radon
    thermal spas
    thermal water
    Opis:
    Radon concentration was measured in 11 thermal spas in Visegrad countries (Czech Republic, Hungary, Poland, and Slovakia). The results showed that in 84% of spas radon activity concentration is less than 400 Bq·m–3. However, areas with radon activity concentration exceeding 1000 Bq·m–3 were found in the Czech Republic and Slovakia as well. Preliminary analyses indicated that the highest radon activities in spas were found in places with thermal pools. Radon concentration in waters used in spas ranged from 0.5 Bq/l to 384 Bq/l. The influence of radon activity concentration in water on radon activity in the air inside the spa was observed. It was found to increase indoor radon with increasing radon in the waters. Correlation with indoor radon and radon in water was more significant for baths and less significant for pool waters. In the cases filling of the bath from water taps, significantly contribute to the increased radon was observed in the pool and bath areas of the spa.
    Źródło:
    Nukleonika; 2016, 61, 3; 303-306
    0029-5922
    1508-5791
    Pojawia się w:
    Nukleonika
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Temporomandibular joint disorder in patients with Parkinson’s disease – a pilot study
    Zespół zaburzeń czynności stawu skroniowo-żuchwowego u pacjentów z chorobą Parkinsona – badanie pilotażowe
    Autorzy:
    Baumann, P.
    Sági, A.
    Perjés, B.
    Prémusz, V.
    Ács, P.
    Marada, G.
    Kovács, N.
    Radnai, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2048528.pdf
    Data publikacji:
    2020
    Wydawca:
    Akademia Bialska Nauk Stosowanych im. Jana Pawła II w Białej Podlaskiej
    Tematy:
    Parkinson’s disease
    temporomandibular joint disorder
    quality of life
    SF-36
    oral health impact profile
    choroba Parkinsona
    zaburzenie czynności stawu skroniowo-żuchwowego
    jakość życia
    profil wpływu zdrowia jamy ustnej
    Opis:
    Background. The number of patients with temporomandibular joint disorders (TMD) is increasing in clinical dental practice. Our study aimed to determine whether a correlation between Parkinson’s disease and TMD symptoms can be established. Material and methods. The anamnestic and clinical dysfunctional indices and the correlations related to the quality of life (SF 36, QoL) of Parkinson’s disease patients (PG, n=35) and healthy controls (CG, n=42) were examined in a cross-sectional study. Statistical analysis was carried out using SPSS 24.0 software. Results. The mean value (7.0±7.7) of the PG in the OHIP-14 (Oral Health Impact Profile) questionnaire was significantly higher (p<0.001) than that of the CG (2.0±3.7). The ratio of belonging to the asymptomatic (Ai0) group was higher in the CG (71.4%) than in the PG (45.7%). The number of moderate or severe symptoms (DiII and DiIII) was higher in the PG (37.1%) than in the CG (2.4%). The mean value of QoL of the PG (60.9±20.1) was significantly lower (p<0.001) than that of the CG (75.9±15.3). Conclusions. Results of the study support that patients with Parkinson’s disease have a higher incidence of TMD. Using the SF-36, we were able to quantify lower QoL of the PG.
    Wprowadzenie. W stomatologicznej praktyce klinicznej coraz częściej widuje się pacjentów z zaburzeniami czynności stawu skroniowo-żuchwowego (ang. temporomandibular joint disorder, TMD). Celem badania było ustalenie, czy istnieje zależność między objawami TMD a chorobą Parkinsona. Materiał i metody. W badaniu przekrojowym wzięto pod uwagę anamnestyczne i kliniczne wskaźniki dysfunkcji oraz korelacje związane z jakością życia (kwestionariusz oceny jakości życia SF-36) u pacjentów z chorobą Parkinsona (PG, n=35) i u osób zdrowych (CG, n=42). Analizę statystyczną przeprowadzono przy użyciu oprogramowania SPSS 24.0. Wyniki. Średnia wartość uzyskana na podstawie profilu wpływu zdrowia jamy ustnej (ang. Oral Health Impact Profile, OHIP-14) dla PG (7,0±7,7) była znacznie wyższa (p<0,001) niż wśród CG (2,0±3,7). Wskaźnik przynależności do grupy bezobjawowej (Ai0) okazał się wyższy w przypadku GK (71,4%) w porównaniu do PG (45,7%). Liczba umiarkowanych lub ciężkich objawów (DiII i DiIII) była większa u PG (37,1%) aniżeli u CG (2,4%). Średnia wartość jakości życia dla PG (60,9±20,1) była natomiast istotnie niższa (p<0,001) niż w przypadku CG (75,9±15,3). Wnioski. Wyniki badania potwierdzają, że pacjenci z chorobą Parkinsona częściej cierpią z powodu TMD. Dzięki zastosowaniu SF-36 określono ilościowo niższą jakość życia PG.
    Źródło:
    Health Problems of Civilization; 2020, 14, 3; 235-241
    2353-6942
    2354-0265
    Pojawia się w:
    Health Problems of Civilization
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wigner Crystallization in InGaAs/InP Heterostructures with a Strong Disorder
    Autorzy:
    Kovács, Gy.
    Remenyi, G.
    Gombos, G.
    Savel'ev, I. G.
    Kreshchuk, A. M.
    Hegman, N.
    Pödör, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/1933825.pdf
    Data publikacji:
    1995-10
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    73.20.Dx
    Opis:
    Non-linear current-voltage characteristics were observed in the range of filling factors of 0.3 ≤ v ≤ 0.4 in a two-dimensional electron system in InGaAs/InP heterostructures with a strong disorder. The observations are explained qualitatively in terms of magnetic field induced localization and Wigner solidification.
    Źródło:
    Acta Physica Polonica A; 1995, 88, 4; 783-786
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Energy Relaxation in Two-Dimensional Electron GaS in InGaAs/InP via Electron-Acoustic Phonon Interaction
    Autorzy:
    Kreshchuk, A. M.
    Novikov, S. V.
    Savel'ev, I. G.
    Polyanskaya, T. A.
    Pődör, B.
    Reményi, G.
    Kovács, Gy.
    Powiązania:
    https://bibliotekanauki.pl/articles/1991650.pdf
    Data publikacji:
    1998-09
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    72.20.-i
    Opis:
    The energy relaxation in two-dimensional electron gas in In$\text{}_{0.53}$Ga$\text{}_{0.47}$As/InP has been studied in a wide range of electron temperatures (from 0.1 to 10 K). The energy loss rate of electrons is controlled by the interaction of electrons with the piezoelectric potential of acoustic phonons. The value of the piezoelectric constant for InGaAs lattice-matched to InP is deduced from theoretical fits of the experimental data: h$\text{}_{14}$=(1.1±0.1)×10$\text{}^{7}$ V/cm. Available data for the piezoelectric constant of In$\text{}_{x}$Ga$\text{}_{1-x}$As are discussed in the light of the results of this work.
    Źródło:
    Acta Physica Polonica A; 1998, 94, 3; 415-420
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-11 z 11

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