Cross-cultural realities in the journalistic discourse and their significance in foreign language learning

The paper examines the journalistic discourse as a linguistic phenomenon in the socio-cultural realities. The relevance of the study is determined by the great interest of linguistic science to the issues of cross-cultural communication and their significance in teaching English as a foreign language. The journalistic discourse is a peculiar phenomenon of linguistics because it reflects socio-cultural features of specific communication space; it creates a language picture of the world of a certain culture and society through the specific socio-cultural lexical units – realities. The main aim of the study is to examine, analyse, summarise and systematise socio-cultural linguistic resources as a means of creating and transmitting linguistic awareness, revealing the pragmatic aspects o f their functioning in the journalistic discourse. In order to achieve this goal the following steps have been taken: 1) to study the characteristics of the journalistic discourse; 2) to determine the specific genres of the journalistic discourse of the English language periodicals and mass media on-line resources; 3) to investigate the cognitive and pragmatic features of the vocabulary functioning, which reflect the peculiarities of the English language context of the socio-cultural aspect of the journalistic discourse; 4) to categorise and analyse the thematic and typological groups of socio-cultural realities and study their functions in the context. The possible application of the obtained results is to develop the scientific and teaching facilities in the field of foreign language learning and translation

Measurement of residual stresses around the notch of tensile specimens of the high-Cr tempered martensitic steel F82H-mod

Residual elastic strains were measured by neutron diffraction using POLDI facility at PSI-Switzerland on pre-loaded notched flat tensile specimens made of the high-chromium tempered martensitic steel F82H-mod steel. To calculate the residual stresses using Hooke’s equation, three perpendicular components of the residual strain field were determined. The measured residual strains and stresses were compared with those deduced from finite element simulation calculations. A very good agreement was found for the strains in the loading plane of the specimen while a somewhat larger discrepancy was observed for the out-of-plane residual strain, which was tentatively attributed to an uncertainty in the initial lattice spacing in that directio

On determination of the constitutive behavior of tempered martensitic steels from micro-indentations: Application to Eurofer97 steel

This paper proposes a simple but powerful approach to determine the constitutive equation of tempered martensitic steels from micro-hardness tests. Finite element simulations were used to investigate the plastic flow in the contact region between the tip and the specimen. The simulations were validated by experimental tests carried out on the tempered martensitic steel Eurofer97 using a simple constitutive Ludwik-type equation. A series of simulations using different constitutive behaviors representative of possible irradiation-induced changes were run. In all cases, a pile-up of material against the indenter tip was observed that is strongly dependent on the constitutive law. Considering the real contact height of the indenter with the material, it was shown that the hardness scales with an averaged value of the flow stress over 30% of plastic strain. In addition, the parameters of Ludwik equation were shown to be determinable from the two experimental quantities that are the hardness and the ratio between the contact height and the penetration depth of the tip. (C) 2013 Elsevier B.V. All rights reserved

Analytical determination of the constitutive behavior from micro-pillar testing: Application to a tempered martensitic steel

Micro-compression experiments were carried out on micro-pillars, with nominal diameter of 10 mu m and height 20 mu m, and fabricated from a high-chromium tempered martensitic steels developed for nuclear applications. An analytical method was proposed to calculate the imposed compressive displacement on the pillar that allows determining the constitutive behavior up to about 5% of plastic strain. The experimental micro-compression curves were showed to be adequately modeled by the finite element simulations, which were used to validate the main assumption considered for the analytical model development. (C) 2014 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution 3.0 Unported License

Fracture toughness characterization in the lower transition of neutron irradiated Eurofer97 steel

This research investigated the evolution of tensile, hardness, and fracture properties of Eurofer97 tempered martensitic steel following neutron irradiation. The irradiation-hardening was measured with Vickers hardness tests on broken parts of sub-sized compact tension specimens as well as with tensile tests deformed at room temperature. The fracture toughness was measured with pre-cracked sub-sized 0.18T compact tension specimens. Two specimen sets were irradiated up to a nominal dose of about 0.35 dpa at two different temperatures, 423 and 623 K, in the experimental reactor at AEKI-KFKI in Budapest. The median fracture toughness-temperature curve K(T) was characterized in the lower to middle transition region for each irradiation condition using the master-curve method. The irradiation-induced temperature shifts of K(T) were determined by calculating the reference temperature T-0 at which the median toughness is 100 MPa m(1/2). A significantly larger shift was determined for Eurofer97 irradiated at 423 K than at 623 K. Indeed, an upper shift of 98 K was found for the 423 K irradiation while only 50 K was measured for the 623 K. On the one hand, that observation reflects the difference in the irradiation-hardening following those two irradiation temperatures. On the other hand, when compared with other published data, the Delta T-0 shift at 623 K irradiation was found to be greater than expected for the corresponding irradiation-hardening. Thus, it was suggested that non-hardening embrittlement mechanisms start to operate around 623 K. (C) 2013 Elsevier B. V. All rights reserved

Effect of warm pre-stressing on fracture toughness of Eurofer97 steel

Experiments and finite element simulations have been carried out to assess the warm pre-stressing effects on the effective fracture toughness of the high-chromium reduced activation tempered martensitic steel Eurofer97. The experiments have been conducted on sub-sized compact tension specimens in the low ductile to brittle transition region. The specimens have been pre-loaded at room temperature before being tested at low temperature. A clear increase of fracture toughness measured after warm pre-stressing has been found that is discussed in the light of the finite element calculations. In particular, a discussion of the role of the residual compressive stress field, triaxiality level and accumulated equivalent plastic strain respectively on the fracture toughness increase after warm pre-stressing is analyzed. It is shown that a change of the local criterion for fast-fracture has to be considered, which results from the pre-deformation. (C) 2013 Elsevier B.V. All rights reserved

ПЕРСПЕКТИВНИЙ ПЛАН ЗАБУДОВИ МІСТА ЛУЦЬКА

Проаналізовано перспективний план розвитку центральної частини міста, а також периферійних районів міста Луцька. Детально розроблено план забудови окремих житлових комплексів, відповідно до вимог нормативних документів

Synthesis and Electrical Properties of Ag₈SnSe₆ Argyrodite Thin Films

The synthesis of Ag8SnSe6 argyrodite thin films with thickness 500 nm by selenization of Ag-Sn film at 480 oC was carried out. Thin films were investigated by X-ray diffraction. Ternary Ag8SnSe6 synthesized in orthorhombic structure with the lattice parameters a = 7.9081(6) Å, b = 7.8189(7) Å, c = 11.0464(9) Å, V = 683.03(10) Å3. Resistive switching cell based on Ag8SnSe6 argyrodite with silver and graphite electrodes was fabricated. Electrical properties of cell were investigated using impedance spectroscopy and cyclic voltammetry. Cell structure and process in this cell were modeled by electric equvivalent circuit. Resistive switching phenomena in Ag/Ag8SnSe6/C cell at certain applied voltage were demonstrated. Keywords: argyrodite, X-ray diffraction, electrochemical cell, impedance spectroscopy, cyclic voltammetry.</span