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Wyświetlanie 1-15 z 636
Tytuł:
Linear orders and MA + ¬wKH
Autorzy:
Spasojević, Zoran
Powiązania:
https://bibliotekanauki.pl/articles/1208392.pdf
Data publikacji:
1995
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Opis:
I prove that the statement that "every linear order of size $2^ω$ can be embedded in $(ω^ω, ≪)$" is consistent with MA + ¬ wKH.
Źródło:
Fundamenta Mathematicae; 1994-1995, 146, 3; 215-238
0016-2736
Pojawia się w:
Fundamenta Mathematicae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fecundity, sex hormones and release of cercariae of Schistosoma mansoni in Biomphalaria alexandrina (Ehrenberg, 1831) treated with copper and magnesium chlorophyllin
Autorzy:
Ragheb, M.
El-Tayeb, T.A.
El-Emam, M.A.
Amer, M.A.
Bashtar, M.A.
Powiązania:
https://bibliotekanauki.pl/articles/83212.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Mikołaja Kopernika. Wydział Biologii i Ochrony Środowiska. Stowarzyszenie Malakologów Polskich
Źródło:
Folia Malacologica; 2018, 26, 1
1506-7629
Pojawia się w:
Folia Malacologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Se-Ma-For Film Studio from 1990 to 1999
Autorzy:
Ciszewska, Ewa
Powiązania:
https://bibliotekanauki.pl/articles/920846.pdf
Data publikacji:
2015-06-13
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
production studies
Se-Ma-For
Łódź and Cinema
Polish animation
Opis:
One of the key roles in the cinematic image of Łódź (the centre of Polish film production in the 1950s and 1960s) was played by “Se-Ma-For” Film Studio. The political and economic changes that Poland underwent at the beginning of the 1990s resulted in the liquidation of most state-owned companies. Se-Ma-For studio managed to operate until 1999, when it was closed. Th is text elaborates on the circumstances that resulted in the liquidation of the studio in 1999.
Źródło:
Images. The International Journal of European Film, Performing Arts and Audiovisual Communication; 2015, 17, 26; 276-282
1731-450X
Pojawia się w:
Images. The International Journal of European Film, Performing Arts and Audiovisual Communication
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Early Carboniferous (~337 Ma) granite intrusion in Devonian (~400 Ma) ophiolite of the Central-European Variscides
Autorzy:
Kryza, R.
Powiązania:
https://bibliotekanauki.pl/articles/2059145.pdf
Data publikacji:
2011
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Variscides
ophiolites
SHRIMP zircon geochronology
Opis:
The Central-Sudetic ophiolites comprise mafic-ultramafic complexes around the E and S edges of the Góry Sowie Massif in SW Poland and are recognized as fragments of Devonian (~400 Ma old) oceanic crust. They contain small rodingite bodies and tectonized granite dykes that potentially can highlight the igneous, metamorphic and structural development of the ophiolitic suites. The granite dykes have been tentatively correlated with the Variscan granitoids of the Strzegom-Sobótka Massif to the north. However, new U-Pb SHRIMP zircon data for granites from the serpentinite quarry at Jordanów show a concordia age of 337 š4 Ma for the main zircon population, and of 386 š10 Ma for minor inheritance. Thus, the age of the granite is considerably older than the ages of the Strzegom-Sobótka granitoids, dated at ~310-294 Ma. The granite dyke has a similar age as some other granitoids found near the ophiolitic fragments, e.g., the Niemcza granitoids to the south, dated at 338 +2/-3 Ma; these older granitoids all represents a relatively early stage of granitoid magmatism recorded in that part of the Variscan Orogen. The age of the granitoid dyke within serpentinites confirms that the Paleozoic ophiolites were incorporated into the continental crust already in early Visean times.
Źródło:
Geological Quarterly; 2011, 55, 3; 213-222
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
MORE ON LEGAL ENGLISH ON THE WEB
Autorzy:
Fernández, Mª Victoria
Powiązania:
https://bibliotekanauki.pl/articles/955768.pdf
Data publikacji:
2006
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej w Lublinie. IATEFL Poland Computer Special Interest Group
Źródło:
Teaching English with Technology; 2006, 6, 4
1642-1027
Pojawia się w:
Teaching English with Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Extension of shelf-life of tomato using irradiated chitosan and its physical and biochemical characteristics
Autorzy:
Parvin, N.
Kader, M.A.
Huque, R.
Molla, M.E.
Khan, M.A.
Powiązania:
https://bibliotekanauki.pl/articles/10996.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Źródło:
International Letters of Natural Sciences; 2018, 67
2300-9675
Pojawia się w:
International Letters of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Nietradycyjne zagrożenia bezpieczeństwa w dyskursie tajwańskich prezydentów Chen Shui-Biana i Ma Ying-Jeou’a
Autorzy:
Rudakowska, Anna
Powiązania:
https://bibliotekanauki.pl/articles/624740.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
non-traditional threats to security (NTS), Taiwan external relations, Chen Shui-bian, Ma Ying-jeou, cross-Strait relations
nietradycyjne zagrożenia bezpieczeństwa (NTZ), polityka zagraniczna Tajwanu, Chen Shui-bian, Ma Ying-jeou, stosunki chińsko-tajwańskie
Opis:
Taiwan’s external relations have been mainly examined from the traditional perspective, which sees territorial conquest as the most important problem in the study of international security. This article asks how and why non-traditional security is relevant to Taiwan’s foreign policy. In order to answer this question, it examines the articulation of Non-traditional Threats to Security (NTS) and their framing in the discourses of the Taiwan Presidents Chen Shui-bian and Ma Yingjeou. It finds that threats of an economic nature and threats related to pandemics are the most prominent NTS in the island’s political rhetoric. This article highlights the opposite processes taking place on the national political stage when the political elites refer to NTS. One the one hand, the discourse about economic threats to security limits Taiwan’s participation in global trade. By linking trade to the question of sovereignty, the political labelling of this issue, originally considered to be of an economic nature, translates into protectionist trade policies with respect to China. On the other hand, the new understanding of pandemics as a threat to security opens the door of opportunity for Taiwan’s participation in international affairs, as it enables Taiwanese politicians to speak about the island’s observer status in the World Trade Organization (WHO) not as a political issue related to the question of sovereignty but as an issue of human security.
Podejście realistyczne jest nadal najczęściej stosowanym przy analizie polityki zagranicznej i bezpieczeństwa Tajwanu, a utrata terytorium i przyłączenie wyspy do Chin są uznawane za główne zagrożenia egzystencjalne. Niemniej jednak w dyskursie politycznym coraz częściej zwraca się uwagę na nietradycyjne zagrożenia dla bezpieczeństwa, takie jak bezpieczeństwo zdrowotne, czy bardziej ogólne bezpieczeństwo jednostki ludzkiej. Celem artykułu jest zbadanie procesu sekurytyzacji, czyli włączania nowych zagadnień do sfery bezpieczeństwa Tajwanu, poprzez analizę dyskursu politycznego dwóch prezydentów tajwańskich – Chen Shui-biana i Ma Ying-jeou’a.Jak się okazuje, w politycznej retoryce Tajwanu coraz więcej miejsca poświęca się zagrożeniom ekonomicznym i zdrowotnym. Artykuł ukazuje, że poruszanie w dyskursie kwestii związanych z bezpieczeństwem ekonomicznym, prowadzi do ograniczenia udziału Tajwanu w światowym handlu. Powiązanie kwestii handlowych z politycznymi (problem suwerenności wyspy), przekłada się na protekcjonistyczną politykę handlową. Z drugiej strony, traktowanie pandemii jako zagrożenia dla bezpieczeństwa, pozwala tajwańskim politykom na ubieganie się o miejsce w Światowej Organizacji Zdrowia, niejako przyczyniając się do międzynarodowej legitymizacji wyspy i wzrostu jej znaczenie w stosunkach międzynarodowych.
Źródło:
Teka Komisji Politologii i Stosunków Międzynarodowych; 2016, 11, 1
1896-8279
Pojawia się w:
Teka Komisji Politologii i Stosunków Międzynarodowych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Changes in Atlantic water characteristics in the South-Eastern Mediterranean Sea as a result of natural and anthropogenic activities
Autorzy:
Said, M.A.
Gerges, M.A.
Maiyza, I.A.
Hussein, M.A.
Radwan, A.A.
Powiązania:
https://bibliotekanauki.pl/articles/47724.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
Atlantic water
change
Mediterranean Sea
Egypt
natural activity
anthropogenic activity
temperature
salinity
trend
water mass
subsurface water
water column
Źródło:
Oceanologia; 2011, 53, 1
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Uniformly convex functions II
Autorzy:
Ma, Wancang
Minda, David
Powiązania:
https://bibliotekanauki.pl/articles/1311788.pdf
Data publikacji:
1993
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Tematy:
convex functions
coefficient bounds
Opis:
Recently, A. W. Goodman introduced the class UCV of normalized uniformly convex functions. We present some sharp coefficient bounds for functions f(z) = z + a₂z² + a₃z³ + ... ∈ UCV and their inverses $f^{-1}(w) = w + d₂w² + d₃w³ + ...$. The series expansion for $f^{-1}(w)$ converges when $|w| < ϱ_f$, where $0 < ϱ_f$ depends on f. The sharp bounds on $|a_n|$ and all extremal functions were known for n = 2 and 3; the extremal functions consist of a certain function k ∈ UCV and its rotations. We obtain the sharp bounds on $|a_n|$ and all extremal functions for n = 4, 5, and 6. The same function k and its rotations remain the only extremals. It is known that k and its rotations cannot provide the sharp bound on $|a_n|$ for n sufficiently large. We also find the sharp estimate on the functional |μa²₂ - a₃| for -∞ < μ < ∞. We give sharp bounds on $|d_n|$ for n = 2, 3 and 4. For $n = 2, k^{-1}$ and its rotations are the only extremals. There are different extremal functions for both n = 3 and n = 4. Finally, we show that k and its rotations provide the sharp upper bound on |f''(z)| over the class UCV.
Źródło:
Annales Polonici Mathematici; 1993, 58, 3; 275-285
0066-2216
Pojawia się w:
Annales Polonici Mathematici
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Confronting MA students’ and seminar teachers’ diverse agendas concerning academic literacy development through an EAP writing course
Autorzy:
Trepczyńska, Magdalena
Powiązania:
https://bibliotekanauki.pl/articles/605626.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
EAP, academic writing courses, academic literacy, MA level writing needs, student and teacher expectations
Opis:
Der Band enthält die Abstracts ausschließlich in englischer Sprache.
Academic courses aim to develop kinds of literacy that are significantly different from what students know from other contexts. Mastering ways of constructing knowledge in scholarly disciplines in a foreign language poses a considerable challenge, not only for the uninitiated. The challenge is none the less small for English for Academic Purposes (EAP) writing instructors as the currently observed diversity of student populations in master’s programs compels them to revise some of their long-standing assumptions and practices. The article reports on a study aiming to compare MA seminar teachers’ and beginner MA students’ perceptions of writing needs and an EAP course expectations and suggests how the responses can be used constructively in writing pedagogy.
Le numéro contient uniquement les résumés en anglais.
Źródło:
Lublin Studies in Modern Languages and Literature; 2019, 43, 3
0137-4699
Pojawia się w:
Lublin Studies in Modern Languages and Literature
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Numerical research of the viscous effect of the bilge keel on the damping moment
Autorzy:
Deng, R.
Duan, W.
Ma, S.
Ma, Y.
Powiązania:
https://bibliotekanauki.pl/articles/258868.pdf
Data publikacji:
2015
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
calculation model
viscous code
phase difference
damping mpment
bilge keel
Opis:
Bilge keels are effective passive devices in mitigating the rolling motion, and the usage of them covers almost all the sea going vessels. This paper focuses on the viscous effect of the bilge keel, ignored the effect of the free surface and the effect of the ship hull, for the general viscous characteristic of the bilge keel. In order to investigate the viscous effect of the bilge keel on the total damping moment, a special 2 dimensional numerical model, which includes a submerged cylinder with and without bilge keels, is designed for the simulation of forced rolling. Three important factors such as bilge keels width, rolling periods, as well as maximal rolling angles are taken into account, and the viscous flow field around the cylinder is simulated by some codes based on the viscous method in different conditions, in which the three factors are coupled. Verification and validation based on the ITTC method are performed for the cylinder without bilge keels in the conditions of different rolling periods and maximal rolling angles. The primary calculation of damping moment induced by the cylinder with 0mm, 4mm, and 10mm width bilge keels shows some interesting results, and a systematic analysis is conducted. The analysis of the damping moment components suggests there is phase difference between the damping moment induced by the cylinder and the bilge keels, and when the bilge keels width reaches a special size, the total damping moment is mitigated. The calculation of the damping moments induced by the cylinder with some larger bilge keels are also performed, and the results suggest that, the damping moment induced by the bilge keels is increased rapidly and becomes the dominant part in the total damping moment while the width of the bilge keels are increased, but the damping moment induced by the cylinder is not changed significantly. Some illustration of the vortices formation and shedding is included, which is the mechanism of the damping moment caused by the bilge keels. The present work shows an interesting problem, and it is useful for the bilge keel design.
Źródło:
Polish Maritime Research; 2015, S 1; 67-74
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
FID-MA XTEA : Cost-Effective RFID-Mutual Authentication Design Using XTEA Security on FPGA Platform
Autorzy:
Anusha, R.
Shastrimath, V. Veena Devi
Powiązania:
https://bibliotekanauki.pl/articles/2055271.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
RFID
mutual authentication
MA
XTEA
FPGA
NFC
EPC
encryption
reader
tag
CBC mode
Opis:
RFID systems are one of the essential technologies and used many diverse applications. The security and privacy are the primary concern in RFID systems which are overcome by using suitable authentication protocols. In this manuscript, the cost-effective RFID-Mutual Authentication (MA) using a lightweight Extended Tiny encryption algorithm (XTEA) is designed to overcome the security and privacy issues on Hardware Platform. The proposed design provides two levels of security, which includes secured Tag identification and mutual authentication. The RFID-MA mainly has Reader and Tag along with the backend Server. It establishes the secured authentication between Tag and Reader using XTEA. The XTEA with Cipher block chaining (CBC) is incorporated in RFID for secured MA purposes. The authentication process completed based on the challenge and response between Reader and Tag using XTEA-CBC. The present work is designed using Verilog-HDL on the Xilinx environment and implemented on Artix-7 FPGA. The simulation and synthesis results discussed with hardware constraints like Area, power, and time. The present work is compared with existing similar approaches with hardware constraints improvements.
Źródło:
International Journal of Electronics and Telecommunications; 2021, 67, 4; 623--629
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of Winter Cover Crop Biomass on Summer Weed Emergence and Biomass Production
Autorzy:
Bittencourt, H.H.
Lovato, P.E.
Comin, J.J.
Lana, M.A.
Altieri, M.A.
Costa, M.D.
Gomes, J.C.
Powiązania:
https://bibliotekanauki.pl/articles/65024.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
A greenhouse assay was carried out to evaluate the effect of winter cover crop residues on spontaneous plants that commonly occur on summer annual fields in Southern Brazil. Dry shoot residues of rye (Secale cereale), vetch (Vicia villosa), fodder radish (Raphanus sativus), and a mix of the three species, were applied over pots that had been seeded with alexandergrass (Brachiaria plantaginea), hairy beggarticks (Bidens pilosa), wild poinsettia (Euphorbia heterophylla), and morning glory (Ipomoea grandifolia) at four different depths (0, 1, 2, or 4 cm). Plant emergence and biomass production were measured. Residues of rye reduced the emergence of B. plantaginea, while vetch diminished I. grandifolia and B. plantaginea emergence. Fodder radish reduced emergence of I. grandifolia. The mix of cover crops reduced emergence of I. grandifolia, B. plantaginea, and B. pilosa. None of the cover crops differed from the control on E. heterophylla emergence. The lowest yields in spontaneous plant shoot biomass were obtained from the cover with rye + vetch + fodder radish. The lowest values of root biomass occurred under cover with rye, fodder radish or the mix. Use of vetch residues decreased emergence of B. plantaginea and I. grandifolia, but enhanced biomass accumulation by the latter.
Źródło:
Journal of Plant Protection Research; 2013, 53, 3
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
3-D simulation of vertical-axial tidal current turbine
Autorzy:
Zhang, Z.
Ma, Y.
Jiang, J.
Liu, W.
Ma, Q.
Powiązania:
https://bibliotekanauki.pl/articles/260421.pdf
Data publikacji:
2016
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
tidal current energy
vertical-axial turbine
hydrodynamic performance
CFD
numerical simulation
3-D effect
Opis:
Vertical-axial tidal current turbine is the key for the energy converter, which has the advantages of simple structure, adaptability to flow and uncomplex convection device. It has become the hot point for research and application recently. At present, the study on the hydrodynamic performance of vertical-axial tidal current turbine is almost on 2-D numerical simulation, without the consideration of 3-D effect. CFD (Computational Fluid Dynamics) method and blade optimal control technique are used to improve accuracy in the prediction of tidal current turbine hydrodynamic performance. Numerical simulation of vertical-axial tidal current turbine is validated. Fixed and variable deflection angle turbine are comparatively studied to analysis the influence of 3-D effect and the character of fluid field and pressure field. The method, put the plate on the end of blade, of reduce the energy loss caused by 3-D effect is proposed. The 3-D CFD numerical model of vertical-axial tidal current turbine hydrodynamic performance in this study may provide theoretical, methodical and technical reference for the optimal design of turbine.
Źródło:
Polish Maritime Research; 2016, 4; 73-83
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 636

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