Search results

Filters

  • Journals
  • Authors
  • Keywords
  • Date
  • Type

Search results

Number of results: 4
items per page: 25 50 75
Sort by:
Download PDF Download RIS Download Bibtex

Abstract

Reinforced concrete is one of the most widely used structural components about which much scientific research has been conducted; however, some of its characteristics still require further research. The main focus of this study is the effect of direct fire on the shear transfer strength of concrete. It was investigated under several parameters including concrete strength, number of stirrup legs (the steel area across the shear plane), and fire duration. The experimental program involved the testing of two sets (groups) of specimens (12 specimens each) with different concrete strengths. Each set contained specimens of two or four stirrup legs exposed to direct fire from one side (the fire was in an open area to simulate a real-life event) for a duration of one, two, and three hours. The results of the comparison showed the importance of using high-performance concrete (instead of increasing the number of stirrup legs) to resist shear stress for the purpose of safety. A significant reduction in shear strength occurred due to the deterioration of the concrete cover after three hours of direct fire exposure.

Go to article

Authors and Affiliations

M.A. Shallal
A.M.K. Al Musawi
Download PDF Download RIS Download Bibtex

Abstract

The article shows folk nicknames operating in geographically diverse rural communities (administratively belonging to the municipality Muszyna). As unofficial anthroponyms, existing only in the spoken form, they represent a living local language — dialect. Analysis of the collected material shows that all the most important features of the language characteristic of this part of Lesser Poland (Małopolska) dialect are performed in it. Folk nicknames, despite numerous hazards caused by civilization, are still an important factor supporting the local dialect — they operate rather vividly in the ana lysed microcommunity (almost every adult has his nickname), and are constantly being created and passed down from generation to generation.

Go to article

Authors and Affiliations

Elżbieta Rudnicka-Fira
Download PDF Download RIS Download Bibtex

Abstract

This paper addresses the problem of road safety regarding barrier placement as relative to the curb. A short summary of existing regulations is presented. Numerical simulations using the explicit finite element system Ls-Dyna are shown. In the analysis, variable distance between the barrier and the curb is assumed. The obtained result reveals that the distance has little impact on the working width of the barrier.

Go to article

Authors and Affiliations

K. Wilde
K. Jamroz
D. Burski
M. Budzyński
S. Burzyński
J. Chróścielewski
W. Witkowski
Download PDF Download RIS Download Bibtex

Abstract

Andrzej Białynicki-Birula, Professor at the University of Warsaw died on April 19, 2021 at the age of 85. He was an outstanding mathematician, who made important contributions to algebra and algebraic geometry. He published many important articles in most prestigious journals such that Annals of Mathematics, Inventiones mathematicae, Topology, American Journal of Mathematics. Professor Białynicki graduated from the University of Warsaw and obtained Ph.D. from the University of California at Berkeley in 1960. After his return to Poland he initiated and played a major role in modernization of research and university curricula in a broad spectrum of mathematical disciplines related to algebra. He has published several textbooks on linear algebra, algebra, algebraic geometry and cryptography, which are currently used at the University of Warsaw and many other Polish universities. Professor Białynicki-Birula served as the dean of the Faculty of Mathematics, Informatics and Mechanics (1977–1981) and as the vice-rector of the University of Warsaw (1985–1987). He was an ordinary member of the Polish Academy of Sciences, and a member of the Academia Europea. In recognition of his achievements Professor Białynicki-Birula received several prizes and distinctions, among them the Officers Cross of the Order Polonia Restituta. Professor Białynicki-Birula was also an art collector, particularly interested in a gothic sculpture, on which he was an expert. In his summerhouse near Belorussian border he was renovating and collecting ethnographic objects related to everyday life and work of peasants. He left a wife, Magdalena Borsuk-Białynicka, a professor of palaeontology, two daughters, a son and 11 grandchildren.
Go to article

Authors and Affiliations

Stefan Jackowski

This page uses 'cookies'. Learn more