University of Rijeka

About: University of Rijeka is a education organization based out in Rijeka, Croatia. It is known for research contribution in the topics: Population & Tourism. The organization has 3471 authors who have published 7993 publications receiving 110386 citations. The organization is also known as: Rijeka University & Sveučilište u Rijeci.

Modeling pull-out resistance of corroded reinforcement in concrete: Coupled three-dimensional finite element model

Abstract: Aggressive environmental conditions, such as exposure to the sea climate or use of de-icing salts, have considerable influence on durability of reinforced concrete structures due to reinforcement corrosion-induced damage. In the present paper, a recently developed coupled three-dimensional chemo-hygro-thermo-mechanical model for concrete is discussed [1] , [2] . The model takes into account the interaction between non-mechanical processes and mechanical properties of concrete (damage). The mechanical part of the model is based on the microplane model. It is validated through a 3D transient finite element analysis of a pull-out of corroded steel reinforcement from a concrete beam-end specimen, which was exposed to aggressive environmental conditions. For the corrosion phase, the influence of the anode and cathode position on the electric potential, current density, corrosion rate and corrosion induced damage is investigated. Moreover, the effect of corrosion on the pull-out capacity of reinforcement and the influence of transport of corrosion products through cracks are studied.

Regression equations for determining mesiodistal crown diameters of canines and premolars.

Abstract: In this study, regression equations (prediction equations) were established for the purpose of accurately predicting the widths of the crowns of unerupted canines (C) and premolars (P1 and P2) on the basis of the measured mesiodistal diameter (MDD) and vestibulooral diameter (VOD) of the crowns of the erupted central and lateral incisors (I1, I2) and first permanent molars (Ml) . On the plaster casts of 120 subjects (60 boys and 60 girls), MDD and VOD of the crowns of I1, I2, C, both P1 and P2, and Ml on both sides in both jaws were measured twice, with a time distance between measurements. Gradual regression equations were derived on the basis of the measurement results, by which the sums of the widths of crowns of C, P1, and P2 can be predicted using three to five predictors. The coefficients of multiple correlations regarding the sex and the jaw varied from 0.79 to 0.85.

The structure of coping styles: a comparative study of croatian sample

Abstract: The primary aim of this study was to develop a Croatian inventory for assessing coping strategies that people use when under stress. As a basis for this inventory, a translation of the multidimensional coping inventory (COPE) by Carver, Scheier and Weintraub (1989) was used. The second purpose was to compare the results of the original version of the COPE with the translated Croatian version. Three additional scales (Humour, Turning to Religion, and Drug and Alcohol Use) were also analysed. The results were obtained using a sample consisting of undergraduate students (N=403) from the University of Rijeka, Croatia. When comparing the original version of the COPE inventory with the Croatian version, a similar factor structure emerged. The differences obtained are interpreted by taking into account different sociocultural and economic conditions in Croatia and the USA. Copyright © 1999 John Wiley & Sons, Ltd.