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    Wyświetlanie 1-13 z 13
    Tytuł:
    Kariologiczna ocena mieszańców Brassica napus L. x Brassica rapa L. pod względem stabilizacji cechy żółtego zabarwienia nasion rzepaku
    Karyological evaluation of Brassica napus L. x Brassica rapa L. hybrids for stabilization of yellowseed trait in rapeseed
    Autorzy:
    Tomaskova, D.
    Bechyne, M.
    Vyvadilova, M.
    Kucera, V.
    Powiązania:
    https://bibliotekanauki.pl/articles/833706.pdf
    Data publikacji:
    1998
    Wydawca:
    Instytut Hodowli i Aklimatyzacji Roślin
    Źródło:
    Rośliny Oleiste - Oilseed Crops; 1998, 19, 1
    1233-8273
    Pojawia się w:
    Rośliny Oleiste - Oilseed Crops
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Hyperfine Field in YIG with Charged Substitution
    Autorzy:
    Kohout, J.
    Štĕpánková, H.
    Englich, J.
    Novák, P.
    Kučera, M.
    Nitsch, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/2013158.pdf
    Data publikacji:
    2000-03
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    76.60.-k
    75.50.Gg
    Opis:
    $\text{}^{57}$Fe NMR spectra were measured on thin films of yttrium iron garnet with divalent (Ca$\text{}^{2+}$) and tetravalent (Ge$\text{}^{4+}$) cation substitutions using the spin echo technique at 4.2 K. A series of Y$\text{}_{3-x}$Ca$\text{}_{x}$Fe$\text{}_{5-x}$Ge$\text{}_{x}$O$\text{}_{12}$ samples with 0 ≤ x ≤ 0.0 5 was prepared by an epitaxial growth from BaO/B$\text{}_{2}$O$\text{}_{3}$/BaF$\text{}_{2}$ flux on gadolinium gallium garnet substrate. Satellite lines corresponding to the iron ions having the Ge$\text{}^{4+}$ and Ca$\text{}^{2+}$ in their neighbourhood were identified. The sample with the germanium content of x(Ge) = 0.004 and (110) substrate orientation was used for a detailed study: NMR spectra of this sample were measured in an external magnetic field of 0.1 T applied along several directions in the plane of the film. The modification of the isotropic part and the anisotropy tensor of the hyperfine interaction caused by the Ge$\text{}^{4+}$ substituent were obtained from the experimental data. The results were compared with those previously reported for trivalent substitution (Ga$\text{}^{3+}$).
    Źródło:
    Acta Physica Polonica A; 2000, 97, 3; 519-522
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Recent state and trends in breeding of winter rapeseed in the Czech Republic
    Autorzy:
    Kucera, V.
    Vyvadilova, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/834160.pdf
    Data publikacji:
    2001
    Wydawca:
    Instytut Hodowli i Aklimatyzacji Roślin
    Tematy:
    oil seed
    winter oilseed rape
    doubled haploid
    cytoplasmic male sterility
    oilseed rape
    Brassica napus
    stress resistance
    Czech Republic
    hybrid
    yellow seed
    molecular marker
    quality analysis
    rapeseed
    Źródło:
    Rośliny Oleiste - Oilseed Crops; 2001, 22, 1
    1233-8273
    Pojawia się w:
    Rośliny Oleiste - Oilseed Crops
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Innovations in breeding procedures of winter oilseed rape for development of improved initial materials and the use of biotechnological methods in the Czech Republic
    Innowacje w metodach hodowli rzepaku ozimego w Czechach dla uzyskania ulepszonego materiału wyjściowego oraz zastosowanie metod biotechnologicznych
    Autorzy:
    Kucera, V.
    Vyvadilova, M.
    Klima, M.
    Koprna, R.
    Machackova, I.
    Curn, V.
    Powiązania:
    https://bibliotekanauki.pl/articles/833713.pdf
    Data publikacji:
    2005
    Wydawca:
    Instytut Hodowli i Aklimatyzacji Roślin
    Tematy:
    innovation
    plant breeding
    procedure
    winter oilseed rape
    oilseed rape
    development
    initial material
    biotechnological method
    doubled haploid
    hybrid breeding
    self-incompatibility
    disease resistance
    frost resistance
    molecular marker
    Czech Republic
    Źródło:
    Rośliny Oleiste - Oilseed Crops; 2005, 26, 1
    1233-8273
    Pojawia się w:
    Rośliny Oleiste - Oilseed Crops
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Antisite Defects in Epitaxial Films of Lutetium Doped Yttrium Iron Garnets Studied by Nuclear Magnetic Resonance
    Autorzy:
    Chlan, V.
    Štěpánková, H.
    Englich, J.
    Řezníček, R.
    Kouřil, K.
    Kučera, M.
    Nitsch, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/1534129.pdf
    Data publikacji:
    2010-11
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    75.50.Gg
    76.60.-k
    76.60.Lz
    68.35.Dv
    68.55.Ln
    Opis:
    Series of lutetium doped yttrium iron garnet films is studied by means of $\text{}^{57}Fe$ nuclear magnetic resonance. Satellite spectral lines are resolved and identified in the spectra and concentrations of lutetium in dodecahedral sites as well as yttrium/lutetium antisite defects in octahedral sites are estimated. Compared to yttrium, lutetium cations are found to have stronger disposition towards creating the antisite defects.
    Źródło:
    Acta Physica Polonica A; 2010, 118, 5; 846-847
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Thirteen years on the hunt for Buxbaumia viridis in the Czech Republic: still on the tip of the iceberg?
    Autorzy:
    Hola, E.
    Vrba, J.
    Linhartova, R.
    Novozamska, E.
    Zmrhalova, M.
    Plasek, V.
    Kucera, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/56699.pdf
    Data publikacji:
    2014
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    Buxbaumia viridis
    moss
    locality
    bryophyte
    threatened species
    rare species
    Czech Republic
    Opis:
    Rare epixylic moss Buxbaumia viridis, which is one of the “Annex II” species of the European “Habitat directive”, has been recorded at 124 localities in the Czech Republic in course of the last 13 years. Most of them were discovered in the last five years following a dedicated search at both historical sites of occurrence and new localities with putatively suitable habitat conditions. The recent and historical area of occupancy and extent of occurrence are not obviously different, although most of the recent localities are concentrated in the Western Carpathians and the Hrubý Jeseník Mts. Surprisingly, only 38% of the localities are located in natural forest habitats, of which herb-rich and acidophilous beech forests were among the most commonly inhabited ones. The rest of occurrences were recorded in non-natural forests (habitats strongly influenced or created by man), particularly the coniferous forest plantations. Sufficient amount of decaying wood of the advanced decay stages, as well as sufficient and constant humidity are crucial prerequisites for the occurrence of B. viridis in both types of forests. True epixylic moss Herzogiella seligeri and the liverwort Chiloscyphus profundus were recorded as the most common associated species, while the rest of commonly co-occurring species were facultatively epixylic, ground or ubiquitous bryophytes; other specialized and rare epixylic mosses or liverworts were only rarely recorded. We also designed a potential distribution model for B. viridis based on the distribution of habitats most commonly occupied by the studied moss. Despite the simplicity of the model, its close match with the recent distribution in the Western Carpathians, the Hrubý Jeseník Mts. and Šumava Mts. supports its relevance for the real distribution of B. viridis.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2014, 83, 2
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Measurement of Short-Circuit Effects on Transformer Winding with SFRA Method and Impact Test
    Autorzy:
    Gutten, M.
    Janura, R.
    Šebök, M.
    Korenčiak, D.
    Kučera, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/221649.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    transformer
    mechanical effects
    measuring methods
    frequency response
    impact test
    Opis:
    The paper presents theoretical and experimental analyses of a possible effect of the short-circuit forces on the transformer winding. The first part of the paper is focused on creation and activity of the radial and axial forces during a short circuit. It shows dimensions, direction and − of course − the resulting mechanical stress. The presented equation shows basic dependencies of these mechanical forces created in the transformer winding. Finally, the paper presents experimental methods of diagnosing and analysing the effects of short-circuit forces on the transformer winding.
    Źródło:
    Metrology and Measurement Systems; 2016, 23, 4; 521-529
    0860-8229
    Pojawia się w:
    Metrology and Measurement Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Blast Wave Parameters of Liquid Esters of Nitric Acid: Propane-1,2,3-triyl Trinitrate, Propane-1,2-diyl Dinitrate, Ethane-1,2-diyl Dinitrate and Methyl Nitrate
    Autorzy:
    Pachman, J.
    Selesovsky, J.
    Künzel, M.
    Matyas, R.
    Kubat, K.
    Anastacio, A. C.
    Kučera, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/358057.pdf
    Data publikacji:
    2017
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
    Tematy:
    nitric ester
    blast wave
    TNT equivalent
    liquid explosive
    shock wave in air
    Opis:
    A knowledge of blast wave parameters generated by detonating explosives is important for the evaluation of protective measures, modelling validation and post blast analysis. The relevant data are available for solid military explosives, but not for liquid or homemade explosives. In this contribution we present comparison of experimental incident blast wave parameters for bare charges, weighing from 100 g to 1 kg, of liquid esters of nitric acid, including propane-1,2,3-triyl trinitrate (NG), propane-1,2-diyl dinitrate (PGDN), ethane-1,2-diyl dinitrate (EGDN) and methyl nitrate (MeN), amongst themselves and with TNT charges of approximately the same size. The TNT equivalents, determined from both the incident overpressures and the impulse of the positive phase of the blast wave, were above 100% and showed relatively high scatter. The strongest blast wave parameters under otherwise identical conditions were observed for charges of methyl nitrate.
    Źródło:
    Central European Journal of Energetic Materials; 2017, 14, 2; 375-390
    1733-7178
    Pojawia się w:
    Central European Journal of Energetic Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Maintenance diagnostics of transformers considering the influence of short-circuit currents during operation
    Eksploatacyjne diagnostyki transformatorów uwzględniające prądy zwarcia podczas pracy
    Autorzy:
    Gutten, M.
    Korenciak, D.
    Kucera, M.
    Sebok, M.
    Opielak, M.
    Zukowski, P.
    Koltunowicz, T. N.
    Powiązania:
    https://bibliotekanauki.pl/articles/301215.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
    Tematy:
    transformator
    diagnostyka
    diagnostyczny system
    uzwojenia transformatora
    metoda częstotliwościowa
    transformer
    diagnostic
    diagnostic system
    transformer windings
    frequency method
    Opis:
    Article presents theoretical, simulation and experimental analyses of possible effect of short-circuit forces on the transformer windings. The first part of the article is focused to the establishment and activity radial and axial forces during short circuit. It shows dimensions, direction and of course caused mechanical stress. Equation shows basic dependencies of these mechanical forces created in the transformer windings. The last part of the article is focused on the simulation method which shows the mechanical stress caused by the short-circuit currents on transformer. The paper presents experimental methods of diagnostics for analysis of the short circuit on transformer windings.
    Artykuł przedstawia teoretyczną, symulacyjną i doświadczalną analizę ewentualnych wpływów prądów zwarciowych na uzwojenia transformatorów. Pierwsza część artykułu koncentruje się na powstaniu i działaniu promieniowych i osiowych sił podczas zwarcia. Przedstawia rozmiary, kierunek i oczywiście powstałe naprężenia mechaniczne. Równanie pokazuje podstawowe zależności sił mechanicznych powstałych w uzwojeniach transformatora. Ostatnia część pracy dotyczy metody symulacji, która przedstawia naprężenia mechaniczne spowodowane przez prądy zwarciowe na transformatorze. Artykuł przedstawia eksperymentalne metody diagnostyki do analizy wpływu zwarcia na uzwojenia transformatora.
    Źródło:
    Eksploatacja i Niezawodność; 2017, 19, 3; 459-466
    1507-2711
    Pojawia się w:
    Eksploatacja i Niezawodność
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Preconditioning in the path-following algorithm for the stokes flow with stick-slip conditions
    Předpodmínění algoritmu sledování cesty pro stokesovo proudění se skluzovou podmínkou
    Autorzy:
    Jarošová, M.
    Kucera, R.
    Šátek, V.
    Powiązania:
    https://bibliotekanauki.pl/articles/112674.pdf
    Data publikacji:
    2017
    Wydawca:
    STE GROUP
    Tematy:
    Stokes problem
    stick-slip condition
    interior point method
    TFETI method
    zagadnienie Stokesa
    stan stick-slip
    metoda punktu wewnętrznego
    metoda TFETI
    Opis:
    The Stokes problem with the stick-slip boundary condition is solved by the mixed finite element method combined with the TFETI method. An interior point method for the minimization subject to box and equality constraints is used. The preconditioned projected conjugate gradient method solves the inner linear systems. The preconditioners are tested experimentally. The aim of our research is to develop efficient solvers for modelling of a flow over hydrophobic walls that exhibits applications in engineering areas including biomedical modelling or transport of fluid.
    Stokesova úloha se skluzovou podmínkou je rešena smíšenou metodou konecných prvku kombinovanou s TFETI metodou. Výpocet rešení se provádí metodou vnitrních bodu urcenou k minimalizaci s oboustraným omezením a rovnostní vazbou. Predpodmínená projektovaná metoda sdružených gradientu se používá pro rešení vnitrních lineárních soustav. Úcinost predpodminovacu se testuje experimentálne. Cílem výzkumu je vyvinout efektivní rešice pro modelování proudení po hydrofobních stenách, což nachází uplatnení v inženýrských oblastech zahrnujících modelování v biomedicíne nebo pri prenosu tekutin.
    Źródło:
    Systemy Wspomagania w Inżynierii Produkcji; 2017, 6, 4; 274-285
    2391-9361
    Pojawia się w:
    Systemy Wspomagania w Inżynierii Produkcji
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Improving the service with the Servqual method
    Autorzy:
    Midor, K.
    Kučera, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/409618.pdf
    Data publikacji:
    2018
    Wydawca:
    STE GROUP
    Tematy:
    improvement
    service
    quality
    Servqual method
    pharmaceutical wholesaler
    Opis:
    At the time when economy is growing, there is strong competition in the market, and customers have increasingly higher expectations as regards quality of service and products. Under such conditions, organizations need to improve. One of the areas of improvement for an organization is to research the level of customer satisfaction. The article presents results of customer satisfaction surveys conducted by the Servqual method in a pharmaceutical service company. Use of this method allowed to improve the services provided by that pharmaceutical wholesaler, identify areas that need to be improved as soon as possible in order to improve the level of service provided.
    Źródło:
    Management Systems in Production Engineering; 2018, 1 (26); 60-65
    2299-0461
    Pojawia się w:
    Management Systems in Production Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Priority Areas for Initiating Land Consolidations Related to Erosion and Water Retention in the Landscape, Czech Republic
    Autorzy:
    Karásek, P.
    Konečná, J.
    Pochop, M.
    Kučera, J.
    Podhrázská, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/124604.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    land consolidation
    rural areas
    water erosion
    wind erosion
    water retention
    GIS
    Opis:
    Land consolidations represent a unique tool for managing the problems of the rural space. They help to settle the land property rights and meet the current requirements associated with the protection and formation of a stable, permanently sustainable rural landscape. In the Czech Republic, complex land consolidations have been completed in 1,965 cadastral areas out of the total 13,100, and in 2,134 more they are in the preparation phase (up to 1st September 2015). It means that about 60% of cadastral areas in CR still await land consolidation. Our study aimed to localize the priority localities (cadastral areas and regions) for preferential implementation of land consolidation. The authors selected three thematic factors to determine the risk of their occurrence in particular localities and, consequently, the need to initiate the land consolidation. The analysis is based on the assumption that the cadastral areas where land consolidations have been completed or are under way have already dealt with the above-mentioned risk factors or will do so soon. Therefore, such areas have not been included into our study. The key selected thematic factors relevant for the preferential implementation of land consolidation include: the risk of water and wind erosion in arable land, water management, and water retention in the landscape. For each of these three factors, a map of preferential localities (based on the degree of risk/suitability) was processed for initiation of land consolidation. At the same time, a simple multi-criteria analysis of the extent of the Czech Republic’s erosion (water and wind) has been prepared. The result of this analysis is the ranking of regions according to the degree of risk of erosion. The most vulnerable regions of the Czech Republic include Jihomoravský (South Moravian Region), Středočeský (Central Bohemia) and Pardubice.
    Źródło:
    Journal of Ecological Engineering; 2018, 19, 4; 16-28
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Technical Infrastructure of “Smart City”: Needs of Integrating Various Management Tasks
    Autorzy:
    Kaźmierczak, J.
    Loska, A.
    Kučera, M.
    Abashidze, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/2064982.pdf
    Data publikacji:
    2018
    Wydawca:
    STE GROUP
    Tematy:
    engineering management
    recognition and assessment of needs
    smart city
    technical infrastructure
    Opis:
    In the article the idea of the “Smart City” is analysed mainly from the view point of technology. The author presents in the first part of the paper the brief review of technical issues connected with implementing the concept of “Smart City” into practice. These review is illustrated in the second part of the paper by some practical results, which are treated as a background for formulating a research problem which is tried to be presented in the third part of the paper: the problem of recognizing needs in the complex field of activities, assessing these needs and - basing on results of such an assessment - designing some integrated solutions that should be used in management of the identified resources. The final part of the paper contains some conclusions and introduces directions for further research.
    Źródło:
    Multidisciplinary Aspects of Production Engineering; 2018, 1, 1; 467--473
    2545-2827
    Pojawia się w:
    Multidisciplinary Aspects of Production Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-13 z 13

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