The effective utilisation of monitoring data of the coal mine is the core of realising intelligent mine. The complex and challenging underground environment, coupled with unstable sensors, can result in “dirty” data in monitoring information. A reliable data cleaning method is necessary to figure out how to extract high-quality information from large monitoring data sets while minimising data redundancy. Based on this, a cleaning method for sensor monitoring data based on stacked denoising autoencoders (SDAE) is proposed. The sample data of the ventilation system under normal conditions are trained by the SDAE algorithm and the upper limit of reconstruction errors is obtained by Kernel density estimation (KDE). The Apriori algorithm is used to study the correlation between monitoring data time series. By comparing reconstruction errors and error duration of test data with the upper limit of reconstruction error and tolerance time, cooperating with the correlation rule, the “dirty” data is resolved. The method is tested in the Dongshan coal mine. The experimental results show that the proposed method can not only identify the dirty data but retain the faulty information. The research provides effective basic data for fault diagnosis and disaster warning.

The article presents Model Integration of Immigrants in Gdańsk in the field of education, based on two years of experience of schools, local government institutions and social organizations involved in the creation of conditions for the education of immigrants. & e foreign pupils, defined as “someone else”, not belonging to the community of “our”, are not the subject of educational policy, but immediately a} er crossing the threshold of schools become its object. The law and school practices define their place in the system, that becomes a huge challenge for both teachers and for students themselves and their parents. Gdańsk way to develop urban educational policy for immigrants led from intervention by the diagnosis of problems and learning from others, to seek their own innovative solutions.

This paper has two distinct parts. Section 1 includes general discussion of the phenomenon of "absolute pitch" (AP), and presentation of various concepts concerning definitions of "full", "partial" and "pseudo" AP. Sections 2-4 include presentation of the experiment concerning frequency range in which absolute pitch appears, and discussion of the experimental results. The experiment was performed with participation of 9 AP experts selected from the population of 250 music students as best scoring in the pitch-naming piano-tone screening tests. Each subject had to recognize chromas of 108 pure tones representing the chromatic musical scale of nine octaves from E0 to D#9. The series of 108 tones was presented to each subject 60 times in random order, diotically, with loudness level about 65 phon. Percentage of correct recognitions (PC) for each tone was computed. The frequency range for the existence of absolute pitch in pure tones, perceived by sensitive AP possessors stretches usually over 5 octaves from about 130.6 Hz (C3) to about 3.951 Hz (B7). However, it was noted that in a single case, the upper boundary of AP was 9.397 Hz (D9). The split-halves method was applied to estimate the reliability of the obtained results.

The paper presents a modelling mathematical tool for prediction of dynamic and steady-states operation of the single-phase capacitor induction motor for different values of the capacitor capacitance and different frequency of voltage supply at no-load and rated load conditions. Developed mathematical model of the capacitor induction motor was implemented for calculation using Matlab/Simulink software. Presented simulation results may be utilized to achieve better starting quality of single-phase capacitor induction motors.

W Polsce przestrzeń wiejska i jej funkcje — w nowej sytuacji politycznej i gospodarczo-ekonomicznej po 1989 roku — ulegają stałym przeobrażeniom. Scheda przeszłości (a także specyfika rozwojowa wsi) sprawia, że procesy te trudno poddają się sterowaniu, zwłaszcza w kierunku wymogów zrównoważonego rozwoju. A przecież powinny skutecznie wpisywać się w strategię rozwojową całego kraju. W celu dobrego zrozumienia tych problemów (warunek wstępny rozważań) konieczne jest więc odniesienie się do historii — co najmniej od czasu zakończenia drugiej wojny światowej aż po dzień dzisiejszy. Analiza tych przemian powinna być punktem wyjścia do innowacyjnych koncepcji i wprowadzania w życie działań naprawczych. Problematyka poruszana w artykule dotyczy obszaru województwa małopolskiego. Skoncentrowano się głównie na planowaniu przestrzennym, gospodarce terenami wiejskimi, architekturze wiejskiej i ochronie zasobów rodzimej kultury. Podstawowy wniosek z rozważań skłania do stwierdzenia, że warunkiem poprawy sytuacji i wyeliminowania z przestrzeni wiejskiej zjawisk negatywnych powinna być kompleksowa współpraca pomiędzy różnymi dziedzinami naukowymi, a więc — w wymiarze interdyscyplinarnym. Współdziałanie o cechach holistycznych może zahamować niekorzystne procesy i przyczynić się do niegenerującej konfliktów stabilizacji rozwoju terenów wiejskich.