738 research outputs found
High strength fibre reinforced concrete: Static and fatigue behaviour in bending
No full textRecently, a number of high strength and ultra high strength steel fibre concretes have been developed. Since these materials seem very suitable for structures that might be prone to fatigue failure, such as bridge decks, the understanding of the static and fatigue bending behaviour is vital. In order to evaluate the bending behaviour of high and ultra high strength concretes, an experimental and analytical approach was followed. Four mixtures were chosen, two ultra high strength concretes, with a compressive strength of more than 200 MPa, and two high strength concretes, with a compressive strength of 120 MPa. The main testing method was the four point bending test on un-notched beam specimens of dimension 125/125/1000 mm. The beams were tested at a span of 750 mm, loaded in their third points. First a series of static bending tests were performed, followed by a number of fatigue bending tests under different values of the upper load level. A point of further attention was the fibre alignment and dispersion: this was examined with image analysis on photographs of beam cross-sections taken at the fracture surface. The tests showed that the mixtures were deflection hardening materials and also strain hardening materials in tension. The mixture with the best workability had the lowest scatter in the static and fatigue behaviour, and this highlights the effect of the fresh state properties on the material behaviour in the hardened state. The fibre count showed that even though a direct relation was found between the number of fibres in the critical cross-section and the flexural strength of the beam in static loading, such a clear relation was not found in fatigue loading. Also, while in plain concrete the static load-displacement curve has been reported to function as an envelope curve for fatigue displacements, this was not valid for the flexural tests of this study. A general conclusion derived from the fatigue tests of the mixtures in this study, is that the fatigue regulations, as used for normal strength concrete, remain suitable for a safe fatigue design with high and ultra high strength concretes. The experimental results were confirmed with an analytical model, the multi-layer model. The tensile material input parameters were obtained from uniaxial tensile tests. Further, the same multi layer model was adapted and used for the fatigue behaviour. A suitable material input relation is proposed that contains a gradual stiffness and strength decrease with increasing number of load repetitions. With this approach, all three stages of the deformation evolution of a fatigue experiment can be modelled. The proposed model can be easily implemented into existing finite element codes, and can therefore be used for fatigue verifications of larger structural elements of various shapes.Civil Engineering and Geoscience
Germanismen im Verpolnischungswörterbuch von E.S. Kortowicz (1891)
No full textOut of concern for language ‘purity’ ‘Polonizing’ dictionaries/dictionaries of Polish equivalents were published in Poland, whose authors (language purists) aimed to replace words/expressions of foreign origin with native-language equivalents (or with assimilated loanwords). Besides Latinisms or Gallicisms under criticism were also German loanwords. The main focus of the paper is on the presentation of the dictionary by E.S. Kortowicz (1891), in which the author seeks to eliminate Germanisms from the Polish language.W trosce o „czystość” językową w Polsce tworzone były „słowniki spolszczające”/,,słowniki spolszczeń”, w których autorzy (puryści językowi) próbowali zastępować wyrazy/wyrażenia pochodzenia obcego rodzimymi ekwiwalentami (lub zasymilowanymi zapożyczeniami). Obok latynizmów czy galicyzmów piętnowano w nich często zapożyczenia z języka niemieckiego. Centralną część publikacji stanowi opis pracy E.S. Kortowicza (1891), w której autor dąży do wyeliminowania germanizmów z języka polskiego
Methods of reliability assessment of heterogeneous redundant systems
No full textAccepted Author ManuscriptTransport Engineering and Logistic
"Introduzione agli Africanismi in America"
No full textL’affermazione della cultura black nel Nuovo Mondo, disposta in un registro definito dal filo rosso del métissage e dell’ibridazione nella sua accezione più ampia, è presentata in un overview d’introduzione agli africanismi in America in cui confluiscono i temi di fondo degli studi afroamericani - dal middle passage ai sistemi familiari, dalle modalità relazionali fino alle forme di percezione di sé e alle dinamiche di accettazione/dissenso dell’appartenenza, dai movimenti per il riconoscimento dei diritti civili alle prospettive antropologiche di studio passate e attuali e ai Black Studies, fino a includere i Neri nel cinema e nella pubblicità e il cinema nero americano. (Saggio nel volume Black Inc. a cura di E.S. Tiberini, corredato da due Dvd: “Africanismi in America” a cura di C. Nobili e “Beyond Boudaries and Unframed. The Art of Fatimah Tuggar” a cura di M. Lightsmith). The assertion of black culture in the New World is examined through an anthropological angle that privileges the aspects of metissage and hybridization: the overview of the “africanisms” in America here offered span the middle passage, the family systems, the identity and self-representation dynamics and the civil rights movements. It also includes the Blacks’ portrait in the cinema, the TV and the commercial advertisement. The analysis carried on is based on the perspective of the classical anthropological studies and on the more recent Black Studies. (The essay constitutes the first half of the volume Black Inc. edited by the Author and has 2 DvD attached: “Africanisms in America” edited by C. Nobili and “Beyond Boudaries and Unframed. The Art of Fatimah Tuggar” edited by M. Lightsmith)
Manipulation of an electron by photoirradiation in the electron-catalyzed cross-coupling reaction
No full textAcknowledgments: We thank M. Akita (Tokyo Institute of Technology) and T. Koike (Nippon Institute of Technology) for discussions on a BDA photoredox catalysis. Funding: This work has been supported financially in part by JST CREST (JPMJCR18R4) . Author contributions: Conceptualization: E.S. Data curation: Y.O., K.Y., K.O., S.M., S.K.S., and M.A. Methodology: E.S. Investigation: Y.O., K.Y., K.O., S.M., S.K.S., and M.A. Funding acquisition: E.S. Project administration: E.S. Supervision: E.S., K.Y., and M.A. Writing- original draft: E.S. and K.Y. Writing - review and editing: E.S., K.Y., and M.A. Competing interests: The authors declare that they have no competing interests. Data and materials availability: All data needed to evaluate the conclusions in the paper are present in the paper and/or the Supplementary Materials
Gloss on the judgment of the European Court of Human Rights of 25 October 2018 in case E.S v. Austria, appl. no. 38450/12
No full textThe gloss deals with the judgment issued by the ECtHR on 25 October 2018 concerning freedom
of expression as provided for in Article 10 ECHR. In the case of E.S. v. Austria the ECtHR
agreed with domestic courts that the applicant’s statements concerning the marriage life style
of Muhammad were “inciting hatred or religious intolerance” read in the light of Article 188
of the Austrian Criminal Code. During the public debate, the applicant made a reference to
“paedophilia”, while talking about 56-year-old Muhammad having sexual intercourse with
his 9-year-old wife Aisha. The main thesis of the author of this gloss is contrary to the ECtHR
judges’ viewpoint, especially in the context of the facts of the case and the previous Strasbourg
case law. Going further, the author presents her fears that the visible and ongoing Islamisation
of Europe starts to have its potential impact on the judicial authorities and their attitudes in
cases connected with some sensitive issues of Islam. The author’s opinion concerns both the
domestic and regional courts’ attitudes.Glosa dotyczy wyroku wydanego przez Europejski Trybunał Praw Człowieka (ETPCz) w dniu
25 października 2018 r., dotyczącego swobody wypowiedzi w rozumieniu art. 10 Europejskiej
Konwencji Praw Człowieka. W sprawie E.S. przeciwko Austrii ETPCz zaakceptował stanowisko
300 GLOSS
IUS NOVUM
2/2019
sądów krajowych, które uznały stwierdzenia powódki dotyczące stylu pożycia małżeńskiego
Mahometa jako „wzniecające nienawiść lub nietolerancję religijną” w rozumieniu art. 188
austriackiego kodeksu karnego. W trakcie debaty publicznej powódka nawiązała do „pedofilii”, rozważając fakt seksualnego współżycia 56-letniego Mahometa z jego 9-letnią żoną Aiszą.
Główna teza autorki niniejszej glosy jest odmienna, szczególnie w kontekście okoliczności
analizowanej sprawy oraz w świetle dotychczasowej strasburskiej linii orzeczniczej. W dalszej
kolejności, autorka wyraża swoje obawy o to, że widoczna i postępująca islamizacja Europy
zaczyna wywierać potencjalny wpływ na władze sądowe i ich postawy w sprawach dotyczących szczególnie drażliwych zagadnień Islamu. W opinii autorki zjawisko to dotyczy postaw
zarówno sądów krajowych, jak i regionalnych
Prince Ananias. Selections Vocal score.
No full textPl. no.: E.S. & Co. 3365/E.S. & Co. 3376.: Louis' song: It needs no poet: An author-manager am I: Hamlet of fancy: I am no queen: When I was born I weighed ten stone: Amaryllis: Titled widows all are we: A regal sadness sits on me: Love is spring
Migrated Space Contrasts
No full textSpace for possible interaction in Matonge, Bruxelles.Urban FabricsUrbanismArchitecture and The Built Environmen
Letter. Late cretaceous seasonal ocean variability from the arctic
No full textThe modern Arctic Ocean is regarded as barometer of global change and amplifier of global warming1 and therefore records of past Arctic change are of a premium for palaeoclimate reconstruction. Little is known of the state of the Arctic Ocean in the greenhouse period of the late Cretaceous, yet records from such times may yield important clues to its future behaviour given current global warming trends. Here we present the first seasonally resolved sedimentary record from the Cretaceous from the Alpha Ridge of the Arctic Ocean. This “paleo-sediment trap” provides new insights into the workings of the Cretaceous marine biological carbon pump. Seasonal primary production was dominated by diatom algae but was not related to upwelling as previously hypothesised. Rather, production occurred within a stratified water column, involving specially adapted species in blooms resembling those of the modern North Pacific Subtropical Gyre, or those indicated for the Mediterranean sapropels. With increased CO2 levels and warming currently driving increased stratification in the global ocean, this style of production that is adapted to stratification may become more widespread. Our evidence for seasonal diatom production and flux testify to an ice-free summer, but thin accumulations of terrigenous sediment within the diatom ooze are consistent with the presence of intermittent sea ice in the winter, supporting a wide body of evidence for low temperatures in the Late Cretaceous Arctic Ocean, rather than recent suggestions of a 15 °C mean annual temperature at this time
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