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Number of results: 11
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Abstract

The subject of investigations was the fragment of low peatland complex located close to Miękinia, about 30 km from Wrocław. Within the range of the examined area of peat bog complex there can be distinguished three parts differing in their utilization and composition of species, namely: 1/ the area degraded by the attempt to afforest it with alder trees Alnus glutinosa (L.) Gaertner, 2/ occasionally used bog hay meadow and 3/ typical peat forming phytocenosis. Total number of determined species, belonging to 11 phytosociological classes, ranged 77, out of which more than a half constitute representatives of Molinio-Arrhenatheretea class. As far as a non-afforested area was concerned, there were determined 5 phytocenosis, including 4 classified as peat forming ones and one typical for post-bog meadows (Alopecuretum pratensis). The afforested area featured herbaceous plant composition which indicated that the area with Alopecuretum pratensis phytocenosis had been degraded. Analysis of environmental requirements, done with the use of ecological numbers, proved that prevailing number of species characterize similar requirements. It was mainly afforested part to feature taxons of broader ecological scale, e.g. Polygonum bistora L., Carex hirta L. and Plantago lanceolata L. The afforested area was purchased by a private person, therefore it can be assumed that the reason for such a way of peatlands utilization was obtaining EU subsidies at minimum work effort. A higher financial profit, however, would have been made by the owner if he had maintained a bog area as an extensive meadow.
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Abstract

The subject of the work is the analysis of thermomechanical bending process of a thin-walled tube made of X5CrNi18-10 stainless steel. The deformation is produced at elevated temperature generated with a laser beam in a specially designed experimental setup. The tube bending process consists of local heating of the tube by a moving laser beam and simultaneous kinematic enforcement of deformation with an actuator and a rotating bending arm. During experimental investigations, the resultant force of the actuator and temperature at the laser spot are recorded. In addition to experimental tests, the bending process of the tube was modelled using the finite element method in the ABAQUS program. For this purpose, the tube deformation process was divided into two sequentially coupled numerical simulations. The first one was the heat transfer analysis for a laser beam moving longitudinally over the tube surface. The second simulation described the process of mechanical bending with the time-varying temperature field obtained in the first simulation. The force and temperature recorded during experiments were used to verify the proposed numerical model. The final stress state and the deformation of the tube after the bending process were analyzed using the numerical solution. The results indicate that the proposed bending method can be successfully used in forming of the thin-walled profiles, in particular, when large bending angles and a small spring-back effect are of interest.
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Abstract

The urban form creates the city structure, whose spatial values not only shape the functionality of the city, but also its identity, whose the most important determinant is the urban tissue. The subject of the study is the analysis of selected historical areas of Cracow in the scope of composition and readability of their urban structure. The analysis focuses on the identification of the most important aspects of spatial renewal processes of these spaces. These processes aimed at strengthening their potential as local centres, that can become a factor stimulating the development of the individual urban units. The increase in the attractiveness and quality of public spaces will positively affect the degree of their perception by the inhabitants and the social relations taking place in them. This in turn, influences the degree of the social involvement in development processes and the creation of more or less spontaneous, bottom-up activities.
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Abstract

When and where did life first appear on Earth? Humankind has been pondering this question for centuries. The discovery of ancient microalgae is providing a partial answer.
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Abstract

There is estrimated more than 750 (public and privat) hospitals active In Poland. In spite that there is legal regulation concerning hospital projects, realization and equipment – permanent financial problems concerning a public health service, results in standards of hospitals, much worse then represented in hospitals in highly developed countries. A long – term practice of authors, concerning both, design and implementation of hospitals, let them to formulate a set of remarks about disfunction, influalcing growth of a danger, risks and mistakes in medical practice, also unexpected accidents.
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Abstract

This article is devoted to the official forms in the inflection of chosen toponyms in Poland and the variety of dialectal singular and plural place names. The variety of place names often diverges from the rules of language use, and causes language users problems. The toponyms have peculiar, locally used inflected forms; the outside-linguistic (non-linguistic) factors that are social and local factors, play an important role in the inflection of place names. The local population often uses other forms than those recommended by official sources. I focus my attention on the genitive forms of toponyms because it is mainly here that one can see clear variations in the official and local inflection of place names. The material shows that the singular masculine toponyms have genitive endings: -a (in the official variety), -u (in the local variety), for example Biłgoraj, gen. Biłgoraja, but in the local dialect: biłgoraju. The singular feminine place names have genitive endings: -ej (in the official variety), -y||-i (in the local variety): Brzezowa, gen. Brzezowej, but Brzezowy in the local dialect. The plural toponyms have genitive endings: -ø, -ów, -i (-y), but in the local circulation the ending -ów is dominant and demonstrates a wider expansion in use. For example Brzózki, gen. Brzózek, in the local variety Brzuskuf; Budy, official gen. Bud, but Buduf; Burnie, gen. Burni, in the local dialect: Burniuf. The gathered material reflects a hesitation in the inflection of toponyms, as the linguistic customs and presented dialectal records of forms of genit ives of place names show a significantly diverse approach towards the Polish language.
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Abstract

The article is an introduction to the monographic content of a volume containing articles dedicated to contemporary models of building residential districts in Europe, where the issue of an attractive, beautiful architectural form must integrate the dimension of energy efficiency. Individualism must be subject to flexible regulations so that the current understanding of the concept of spatial order brings with it commonly desirable qualities as an effective strategy against the processes of the city›s sprawl. Attached is the output of the HOPU-S URBACT II project (2007-2013), which became an inspiration for the topic.
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Abstract

The study proposed the model of “guide mark” defects formation on the internal surface of pipes, produced on PRM mills of PRP – 140. The research of pipe forming at plug rolling mill with stub mandrel has been carried out; regularities of the dimensionless parameters characterizing the deformation of the gap release, depending on the reduction ratio, were determined. The model of “guide mark” defect formation on the internal surface of the pipe has been proposed. This allows for lesser wall thickness variation of rough tubes. It has been shown that, when using dioctahedral pass designs in comparison with hexagonal pass designs the proportion of displaced volume along the pipe axis is greater but the value is lower; thereby, the risk of “guide mark” defect forming is reduced.
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Abstract

In the paper the results of experimental research of the process of flow forming of cylindrical drawpieces were presented. The drawpieces were made of the 3.1 mm thick AMS 5596 sheet by drawing process. Tests were performed on two-roller metal spinning machine of a vertical axis Leifeld SFC 800 V500. The main purpose of this research was to determine the relationship between relative thickness reduction and the mechanical properties of tested material. Knowledge of these dependencies is especially useful in designing machines’ components manufactured by flow forming, in the selection of parameters of realization of this technological process as well. Mechanical properties were determined on the basis of uniaxial tensile of the micro samples obtained from the drawpieces: (I) after cold flow forming, (II) after cold flow forming and in-process heat treatment. Obtained results were shown graphically in the diagrams and their analysis was carried out. In addition, the microstructure of the sheet material tested after drawing and flow forming is presented.
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Nauka | 2017 | No 4 | 197–206

Abstract

Professor Jerzy Pelc was the creator and long-time manager of the Department of Logical Semiotics, University of Warsaw. He also founded the Polish Society of Semiotics. He published six own books, among others Studies in Functional Logical Semiotics of Natural Language (1971; in English); he edited also dozens of volumes of Semiotic Studies and Library of Semiotic Thought. As Kotarbiński, his master, and Twardowski, the master of his master, Professor Pelc was a radical rationalist. This radical rationalism has linked him to atheism, anti-communism, a distance to politics, and a frown on the falsehood of public life. He was a great patriot – in his life and in his work. He considered himself a successor of the Lvov-Warsaw School tradition. In the field of metaphysics, Professor Pelc combined theoretical minimalism with anti-rationalist attitudes, including the postulate of precision and the requirement of criticism. The main field of his interest was logical – and broader: theoretical – semiotics. He advocated and largely developed the functional concept of signs. To traditional paradigms of research: historical, teleological, causal and prognostic ones – Professor Pelc has added a semiotic paradigm, determined by the question “What does it mean that p?”. Referring to the interdisciplinary fashion for interdisciplinary research, he conducted an analysis of the notion of INTERDISCIPLINARITY. In ontology, he analyzed the notions of OBJECT and CAUSALITY. In his approach, aesthetics was treated form a semiotic point of view: he sought mainly ways to logically rewrite its terminology. In particular, he reconstructed the main aesthetic notions: FORM and IDEOLOGY (of literary works), THEME, MOTIVE, METAPHOR and (literary) FICTION – as well as semiotic notions essential to the description of literary arts, namely the notions of ASSERTION and INTENSIONALITY. In the field of ethics, Professor Pelc declared himself as an advocate of the ideal of trustworthy guardian, which he took over from his teacher, Kotarbiński. In metaethics, he analyzed the notions of NORM, EVALUATION and HUMANITY. A master of Polish: beautiful Polish – he was certainly a true humanist.
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Abstract

Czarny Paryż [The Back Paris] is a crime novel written by Jolanta Fuchsówna, journalist and writer, and Jan Brzękowski, leading poet of the Cracow Avant-garde who lived in Paris, and serialized in the Cracow daily Ilustrowany Kurier Codzienny in 1932, but not published as a book. In this article two typescripts of the novel are analyzed and compared with the printed text, taking note of all the corrections and amendments introduced by the authors. An integral supplement to this textual study is an extract from Chapter XIII ‘A Party in the Studio of the Japanese Man’ reproduced in two versions, 1) with footnotes and modernized spelling, and 2) the original text from the typescript with all annotations.
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