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


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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