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Materials Science Poland
2013 Vol. 31, No. 3 454--461
EN The transparent conducting titanium-gallium co-doped zinc oxide (TGZO) thin films were grown on glass substrates by radio-frequency magnetron sputtering technique. The effects of working pressure on the structural, optical and electrical properties of the films were investigated. The results show th[...]
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Przegląd Elektrotechniczny
PL Analizowano stabilność systemów z interwałowym zmiennym w czasie opóźnieniem. Wyprowadzono nowe kryteria stabilności bazując na funkcjonale Lapunowa.
EN This paper is concerned with the stability of systems with interval time-varying delay. By employing a new and tighter integral inequality and constructing an appropriate type of Lyapunov functional, the improved delay-dependent stability criteria are derived. Because neither any model transformatio[...]
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Eksploatacja i Niezawodność
PL Częste czynności obsługowe prowadzą do niskiej gotowości systemu oraz wymagają dużych nakładów pieniężnych. W systemie wieloelementowym całkowity czas i koszt obsługi można obniżać łącząc ze sobą czynności obsługowe niektórych elementów. Dlatego też konieczne jest planowanie zoptymalizowanego harmon[...]
EN Frequent maintenance activities would cause low system availability and require large sums of money. For a multi-unit system, maintenance activities of some units can be combined together to reduce the total maintenance possession time and cost. Therefore, an optimized timetable of the maintenance a[...]
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Eksploatacja i Niezawodność
PL W niniejszej pracy skonstruowano model do analizy prawdopodobieństwa sukcesu systemów o zadaniach (misjach) okresowych (ang. phased mission systems, PMS) z daną, ograniczoną liczbą części zamiennych. Konfiguracja systemu oraz kryteria sukcesu zadania okresowego mogą być różne dla różnych faz zadania[...]
EN This paper builds a model to analyze the success probability of phased mission systems (PMS) with given limited spares. The configuration and success criteria of phased mission may vary from phase to phase. Most reliability analysis techniques and tools of phased mission systems assume that there is[...]
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Materials Science Poland
2008 Vol. 26, No. 3 518--526
EN A novel, visible-light-activated Fe2O3/SnO2 photocatalyst was prepared by the co-precipitation method, and characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), N2 adsorption–desorption measurement and UV-Vis diffuse reflectance spectroscopy. The phase composition, crysta[...]
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Journal of Applied Analysis
2013 Vol. 19, nr 1 141--152
EN Best possible upper and lower bounds are given for the logarithmic and identric mean values in terms of the generalized centroidal mean.
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Przegląd Elektrotechniczny
PL Analizowano bezpieczeństwo i niezawodność informatycznej sieci wykorzystywanej do kontroli systemów zasilania. Analizowano systemy dostępu do sieci na różnych poziomach bezpieczeństwa.
EN The security defense of Electric Power Information Network should focus on the security of network business running on Intranet. In order to meet the special requirements of network business security in Electric Power Information Network, the access rules of network business between different securi[...]
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Przegląd Elektrotechniczny
PL Zaprezentowano nowy model dostępu do sieci PWWF przy przepływie informacji.
EN In recent years, more and more attentions have been paid on the security of Workflow Management Systems (WFMSs) for its importance both in research and commercial realms. Access control is crucial to security management in WFMSs. A novel dynamic policy-based access control model for WFMSs called PAW[...]
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Polish Journal of Ecology
EN Mitochondrial cytochrome b gene sequences and morphological data (body length, hind foot length, etc.) for twelve populations with pairwise distances 27-600 km in Qinghai-Tibetan Plateau (distributed in Qinghai, Gansu and Sichuan Province, and at the altitude 3020-4550 m) in Western China were used [...]
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Biocybernetics and Biomedical Engineering
EN Neural stem cells are the cells that give rise to the main cell types of the nervous system. Due to their varying size and shape, and random movement, the tracking of these cells in suspension in video sequences is challenging. This paper develops an automatic tracking system for neural stem cells. [...]
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Bulletin of the Polish Academy of Sciences. Technical Sciences
2016 Vol. 64, nr 4 785--792
EN Polymers are widely used in cement mortar and concrete modification due to their significant role in improving the overall performance of cement-based materials. Their physical interaction is well-accepted, while less attention is given to chemical interaction between the polymers and cement. Throug[...]
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Materiały Budowlane
2016 nr 1 59--62
PL W artykule analizowano możliwość wykorzystania niemetalicznego proszku pochodzącego z recyklingu płytek drukowanych PCB (ang. Printed Circuit Boards) jako zamiennika piasku w zaprawach cementowych. Uzyskane wyniki wskazują, że dodatek proszku PCB powoduje wzrost zawartości powietrza, poprawę zdolnoś[...]
EN The nonmetallic powder recycled from waste printed circuit boards (PCB) is used in cement mortar as replacement for sand. The results show that the waste PCB nonmetallic powder causes an increase in air content and improves the water-retention property of fresh mortar, decreases the bulk density of [...]
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Biocybernetics and Biomedical Engineering
2016 Vol. 36, no. 4 708--718
EN Aiming at the problems of low accuracy, poor universality and functional singleness for seizure detection, an effective approach using wavelet-based non-linear analysis and genetic algorithm optimized support vector machine (GA-SVM) is proposed to deal with five challenging classification problems i[...]
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Ecological Chemistry and Engineering. S
PL Problem uwalniania fosforu jest związany z ochroną środowiska i bezpieczeństwem żywności. Krystalizacja struwitu jest przydatną technologią odzysku fosforanów ze ścieków. W opisanych badaniach proces krystalizacji struwitu zastosowano do odzyskiwania fosforanów z gnojowicy, do tego celu wykorzystano[...]
EN The problem of phosphorus discharge is related to environmental protection and food security. Struvite crystallization is a useful technology for phosphate recovery from wastewater. In the research, struvite crystallization process with CO2 degasification continuous U-shape reactor (CUSR)[...]
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Przegląd Elektrotechniczny
2012 R. 88, nr 7b 269--272
PL Zaproponowano metodę poprawy jakości obrazu w radarach typu SAR. Bazuje ona na liniowym minimum średniej kwadratu błędu LMMSE filtru. Wykorzystano adaptacyjną funkcję zbieżną w przestrzeni i wszystkie współczynniki modyfikowane są niezależnie.
EN A low complexity method for suppressing speckle in synthetic aperture radar (SAR) images is proposed. This method doesn’t require the logarithmic transform and is an extension of the linear minimum mean square error (LMMSE) filter to the image wavelet representation. A spatially adaptive shrinkage f[...]
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Problemy Ekorozwoju
2016 Vol. 11, nr 1 173--176
PL W artykule scharakteryzowano strumień emisji i absorpcji gazów cieplarnianych CO2 i CH4 w środowisku. Zwrócono uwagę, że antropogeniczna emisja CO2 wynosi zaledwie 3% poziomu emisji ze źródeł naturalnych. Ponadto zauważono, że intensyfikacja absorpcji CO2 przez ekosystemy lądowe o 3% mogłaby zahamow[...]
EN The emission and absorption fluxes of CO2 and CH4 in the environment have been characterized. It has been pointed out that the anthropogenic emission of CO2 amounts only to 3% of emissions from the natural sources. It has been also noted that increasing CO2 absorption of terrestrial ecosystems by 3%[...]
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Biocybernetics and Biomedical Engineering
2017 Vol. 37, no. 4 679--689
EN In this paper, a novel approach based on the maximal overlap discrete wavelet transform (MODWT) and log-normal distribution (LND) model was proposed for identifying epileptic seizures from electroencephalogram (EEG) signals. To carry out this study, we explored the potentials of MODWT to decompose t[...]
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Acta of Bioengineering and Biomechanics
EN Purpose: Mechanical properties, as the inherent characteristics of cells, play a critical role in many essential physiological processes, including cell differentiation, migration, and growth. The mechanical properties of cells are one of the criteria that help to determine whether the tissue contai[...]
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Fundamenta Informaticae
EN This paper presents a method to capture the computational intensity and computing resource requirements of data analysis in intelligent transportation systems (ITS). These requirements can be transformed into a generic methodological framework for Cyber-ITS, mainly consisting of region-based ITS dat[...]
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Environment Protection Engineering
EN Process of struvite (Mg4NH4PO4·6H2O) precipitation is a promising method for phosphorus recycling. The use of cheap magnesium ore for precipitation struvite as phosphate recovery has been examined. The optimal conditions for precipitation are pH 9.0 and Mg2+: NH4 +: [...]
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