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Abstract

From the beginning of the 20th century, images of war were mostly produced through audio-visual methods. This also applies to the Great War, although its earliest on-screen portrayals remain little-known today. Documentary footage filmed during the First World War was often destroyed or dispersed in the interwar period. Nevertheless, it has introduced new cinematic techniques and themes later seen in war reportages. Feature films about the Great War were generally made after it ended. France and Hollywood mostly produced battle scenes and anti-war “posters”. Although not addressing the subject of war directly, some German films of the period were described by the film expert Anton Kaes as “post-traumatic cinema” or “shell shock cinema”. In the newly independent Poland, the Great War first appeared on the screens in the context of the legend of the Polish Legions. The young and underfunded Polish cinematography had difficulties in dealing with such a demanding theme, which fact is well illustrated by the unfulfilled ambitions of Ryszard Ordyński’s film Mogiła nieznanego żołnierza (The Tomb of the Unknown Soldier). At the same time, in the 1920s star Western productions arrived in Poland including such famous films as Abel Gance’s J’accuse or Rex Ingram’s The Four Horsemen of the Apocalypse. They met with great interest among Polish audiences, reaching the rank of blockbusters. These films also triggered discussions in intellectual circles about the ways and the purpose of showing war on screen. The enthusiastic reception of those films may be a counter-argument to the opinion, that the Great War was not properly scrutinised in Poland both on the symbolic and artistic level.
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Abstract

The paper presents an estimation of liquefaction susceptibility of some soils from the coast of the Marmara Sea, which was heavily striken by the Kocaeli earthquake in 1999. Firstly, the results of field investigations are summarized. Then, the results of laboratory investigations of physical and mechanical properties of the soils collated from the sites investigated are presented. The mechanical properties relate to the compaction/liquefaction model of saturated soils. This model is briefly outlined, then respective experimental procedures dealing with its calibration described, and values of material parameters listed. Liquefaction potential of investigated soils is analysed using standard procedures, based on the grain size distribution curves and SPTs. Finally, the simulation of pore-pressure generation and onset of liquefaction of Turkish soils is carried out, using the compaction/liquefaction model. Discussion of some standard empirical procedures of estimation of liquefaction potential of saturated soils, conducted from the analytical point of view, is also presented.
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Abstract

This paper presents numerical simulationsof the behavior of a sandy layer subjected to a cyclic horizontal acceleration in shaking table tests, with a particular attention focused on the settlements of a dry sand layer, and on the liquefaction of saturated sand. A compaction/liquefaction model (C/L) is applied to these simulations. The infl uence of specifi c parameters of the model on the compaction and liquefaction of a sandy layer is shown and discussed. The results of simulations are compared with selected experimental data.
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