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1
Content available remote SPAIN IN THE EUROPEAN UNION (Hiszpania w Unii Europejskiej)
100%
Mazur M.
Przegląd Zachodni
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2010
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nr 4(337)
210-228
EN
The article presents the situation of Spain in the context of its accession to the European Communities in 1986. In the first part the changes and problems that accession caused in Spain are discussed. This is followed by discussion of the benefits gained by Spain within the EU's structural policy. In the last part of the article Spain is compared to the other member states of the EU. The comparison is based on eight socio-economic indicators for the period from Spain's accession to the Communities up to 2009.
2
Content available Examples of vibratory crushers applications in crushing technological lines
100%
Mazur M.
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tom Vol. 2, Iss. 1
28--36
EN
Very fine crushing of hard and very hard materials, to product of particle size less than 2-4 mm at feed particle size of 50-200 mm, requires a very large energy inputs. This is mainly because of the need for at least three or even four degrees of crushing, containing: jaw, cone or impact crushers. One of the methods of reducing the amount of energy expended on the crushing process is reducing the number of crushers in technological line. By replacing a large number of less effective crushers with fewer machines but characterized by higher crushing efficiency we can gain considerable savings in investment and operating costs. This is possible by using crushers capable of obtaining much greater degrees of fragmentation than the aforementioned, that is vibratory crushers. The paper includes the systematic of currently used vibratory crushers, their mechanical diagrams, descriptions of the construction and operation, and basic technical parameters as well as examples of crushing technological lines utilizing vibratory crushers.
3
Content available Metoda kartograficzna jako źródło informacji w badaniach obszarów wiejskich
100%
Mazur M. , Zakład Geografii Wsi i Rozwoju Lokalnego. Instytut Geografii i Przestrzennego Zagospodarowania PAN
Acta Universitatis Lodziensis. Folia Geographica Socio-Oeconomica
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2013
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nr 13
EN
The general aim of the article is to present the importance of cartographic method of research in the studies of rural areas in spatial dimension. The capabilities of this method of research are rather underestimated in contemporary rural geography. This statement is linked with a common limited understanding of the role of cartography in geographical studies. It is primarily seen as an important way of presenting geographic background for a given area and general conditions for investigated phenomena, as well as a manner of depicting research results and conclusions. Due to this fact, the role of cartography is narrowed down to methods of presentation. Unfortunately, its very significant function as a self-contained method of research often becomes abandoned. Moreover, some possibilities and results of using different methods of presentation tend to be underestimated. In the article, both – different ways of applying cartographic method – and various consequences of selecting a way of cartographic presentation are indicated. Showing the variety of possibilities is illustrated by examples of actual geographical studies.
PL
Celem artykułu jest wykazanie znaczenia kartograficznej metody badań w badaniach obszarów wiejskich w ujęciu przestrzennym. Możliwości tej metody badań obszarów wiejskich wydają się być w ostatnim czasie niedoceniane. Często rola kartografii w geografii wsi jest ograniczana jedynie do kartograficznej metody prezentacji. W artykule zaprezentowano różne sposoby zastosowań kartograficznej metody badań i kartograficznej metody prezentacji wraz z ilustracją poprzez przykłady konkretnych ich zastosowań w badaniach obszarów wiejskich.
4
Content available Determination of crushing energy during vibratory crushing
100%
Mazur M.
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tom Vol. 2, Iss. 1
287--294
EN
The paper presents a new method of determining the energy consumption for vibratory crushing. Using the laboratory vibratory jaw crusher with kinematic actuation of the jaws, the study of determining power consumption while crushing limestone and diabase was conducted. During the study, electrical energy used on the crushing process was measured as a function of changing design and kinematic parameters of the vibratory crusher, i.e.: jaws stroke, the outlet gap size and frequency of jaws vibration. The article presents program of the research, the laboratory test stand of the vibratory jaw crusher KW 40/1 and the test results. Comparing the theoretical crushing energy requirements, determined by the Bond hypothesis, with the values measured during tests a large differences were observed. Using the Bond hypothesis the Vibratory Work Indexes were determined for the tested materials. Their values are higher than limestone and diabase Work Indexes available in the known literatures. The explanation may be greater amount of energy transferred to the material during vibratory crushing, which results in much higher efficiency of the crushing process.
5
Content available On Some Goodness of Fit Tests for Normality Based on the Optimal Transport Distance
63%
Mazur M. , Kościelniak P.
Schedae Informaticae
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2018
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tom Vol. 27
59--68
EN
We apply the optimal transport distance to construct two goodness of t tests for (univariate) normality. The derived statistics are then compared with those used by the Shapiro-Wilk, the Anderson-Darling and the Cramervon Mises tests. In particular, we preform Monte Carlo experiments, involving computations of the test power against some selected alternatives and wide range of sample sizes, which show eciency of the obtained test procedures.
6
Content available Application of Impact Hammer Crusher for Rock Salt Purification®
63%
Feliks J. , Mazur M.
Postępy Techniki Przetwórstwa Spożywczego
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2022
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tom nr 2
11--18
EN
The article presents the results of research on crushing rock salt. At the Department of Machinery Engineering and Transport, AGH University of Science and Technology in Krakow, an attempt was made to crush salt with a grain size of up to 5 mm. The aim of the research was to obtain a product with a grain size of up to 2 mm with the smallest possible fraction of less than 0.5 mm, which will allow obtaining a product that meets the requirements of customers. The technological system should allow for a minimum efficiency of 20 Mg/h of product. The tests were carried out on two types of crushers: a Vibratory jaw crusher and a hammer crusher with a variable grate size. Based on the analysis of the research results, the use of a hammer crusher was proposed. Using this type of crusher with an adequately selected grate allowed to obtain satisfactory results. It was also proposed to modify the crusher’s functional elements (hammers), which should increase the efficiency of the process.
PL
W artykule przedstawiono wyniki badań, dotyczących kruszenia soli kamiennej. W Katedrze Inżynierii Maszyn i Transportu Akademii Górniczo-Hutniczej w Krakowie podjęto próbę kruszenia soli o uziemieniu do 5 mm. Celem badań było uzyskanie produktu o uziemieniu do 2 mm 2 jak najmniejszym odziałem frakcji poniżej 0,5 mm co pozwoli na uzyskanie produktu spełniającego wymagania odbiorców. Układ technologiczny powinien pozwolić na uzyskanie wydajności wynoszącej minimalnie 20 Mg/h produktu. Badania przeprowadzono na dwóch typach kruszarek: szczękowej kruszarki wibracyjnej i kruszarce młotkowej ze zmiennym rusztem. Na podstawie analizy wyników badań zaproponowano zastosowanie kruszarki młotkowej. Zastosowanie tego typu kruszarki z odpowiednio dobranym rusztem pozwoliło na uzyskanie zadawalających efektów. Zaproponowano również modyfikacje elementów roboczych kruszarki co powinno pozwolić na zwiększenie efektywności procesu.
7
Content available Morphological discrimination of granular materials by measurement of pixel intensity distribution (PID)
51%
Wójcik A. , Kościelniak P. , Mazur M. , Mathia T. G.
Metrology and Measurement Systems
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2019
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tom Vol. 26, nr 2
297--308
EN
The paper provides statistical analysis of the photographs of four various granular materials (peas, pellets, triticale, wood chips). For analysis, the (parametric) ANOVA and the (nonparametric) Kruskal-Wallis tests were applied. Additionally, the (parametric) two-sample t-test and (non-parametric) Wilcoxon Rank-Sum Test for pairwise comparisons were performed. In each case, the Bonferroni correction was used. The analysis shows a statistical evidence of the presence of differences between the respective average discrete pixel intensity distributions (PID), induced by the histograms in each group of photos, which cannot be explained only by the existing differences among single granules of different materials. The proposed approach may contribute to the development of a fast inspection method for comparison and discrimination of granular materials differing from the reference material, in the production process.
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Content available Sliced Generative Models
45%
Knop S. , Mazur M. , Tabor J. , Podolak I. T. , Spurek P.
Schedae Informaticae
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2018
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tom Vol. 27
69--79
EN
In this paper we discuss a class of AutoEncoder based generative models based on one dimensional sliced approach. The idea is based on the reduction of the discrimination between samples to one-dimensional case. Our experiments show that methods can be divided into two groups. First consists of methods which are a modification of standard normality tests, while the second is based on classical distances between samples. It turns out that both groups are correct generative models, but the second one gives a slightly faster decrease rate of Fréchet Inception Distance (FID).
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