Public education is educating influence of wide range media on political beliefs, worldviews and patterns of the everyday life of the audience, and of the potential electorate. The public intellectuals (the Henry A. Giroux concept), significant and respected experts (academics, journalists, politicians) play a special role. The article contains the presentation and analysis of the reaction of American public intellectuals to the election of Donald Trump as President of the United States – from the perspective of critical-emancipatory pedagogy. These are extremely critical to the consequences of D. Trump's choice: Ken Wilber's, Henry A. Giroux’s, Noam Chomsky’s, and several authors in the Berkeley Review of Education 2017/1 publications and speeches are recalled. The author concludes that Poland no longer has to imitate America, because in authoritarian drift (turn) it is ahead of it.
A mine cannot function without monitoring systems: environmental, basic mining machinery and equipment. The exploitation of ore in the mine depends heavily on properly functioning machines and mining equipment, and acceptable for the miner technical environmental conditions occurring in underground excavations. The monitoring systems of the technical environment in underground mines are primarily telemetry and gasometry systems. The first part of the article shows the typical structure of gasometry systems operating in the Polish underground mines. The existing provisions include the so-called security systems of the mining plant. The article presents a quantitative summary of the telephone exchange types and count of main telecommunication lines operating in these systems. Monitoring systems of machines and mining equipment are an essential element of the effec-tive management of the mine, because they affect the safe operation and increase time of effi-ciency equipment. The second part of the article shows selected monitoring systems of mining machinery and equipment currently used in the dispatcher rooms of mines. Attention was paid to the monitoring systems, which are only software tools as well as those in which additionally use dedicated IT solutions for these systems, hardware and measuring tools. The table shows the types of monitoring systems and technological configurations used in underground mines, preferred for them.
The multi-dimensional cooperation between Count Władysław Zamoyski and St. Albert Chmielowski is an important fragment of Zakopane’s tradition. Their activity marked the period of the development of the town, which was on its way to becoming not only a famous spa, but also a centre of the Polish spiritual and political life. Owing to Zamoyski’s assistance, St. Albert erected a hermitage at the foot of the Tatra Mountains, which hosted some eminent artists from the Young Poland period. In line with the vision of Zakopane consistently implemented by Zamoyski, the sanctuary of prayer and contemplation was an indispensable element. There are testimonies according to which Count Zamoyski felt a monastic vocation and discussed the issue with the founder of the Albertine Brothers. St. Albert’s refusal to allow him to go resulted from his belief that Zamoyski’s economic activity was particularly beneficial from the social point of view, promoting not only civilizational but also spiritual progress. The cooperation of the two outstanding figures is without any doubt one of the most significant threads of Polish culture at the turn of the 20th century.
Waterproof lime dust used in coal mines is an important element in the system of protection against explosions. This is one of the oldest methods used to prevent coal dust explosions and, according to an expert’s opinion, it will remain so for a long time. T he work is a summary of research on the development of a new method of producing waterproof limestone dust to use it as an anti-explosive powder in coal mines. The typical method of hydrophobic dust production (milling limestone with stearic acid) is no longer profitable due to the restructuring of the mining industry. The main research was conducted on raw materials traditionally used during the production of anti-explosion powder, namely limestone meal with a grain size diameter equal to 80 μm (Czatkowice Limestone Quarry) and stearic acid as a modifier. Silicone preparation and bituminous preparation (Bitumenovoranstrich) were used as additional modifiers. The hydrophobization process was conducted with the use of different techniques: from stearic acid ether solution, from stearic acid vapor, from methyl silicone resin or bituminous preparation solutions. A series of research on modified powders to determine hydrophobization and flow properties was conducted. Depending on method of hydrophobization, the test of “floating on water”, the extraction of stearic acid was carried out, water contact angles on compacted material were determined, the thermal decomposition of powder was made. The increase in moisture after wet storage was indicated. The flow properties of powders were measured with the use of the Powder Characteristics Tester. The evaluation of the suitability of each hydrophobization methods in achieving the intended purpose was valued.
In the paper presented is a novel concept to utilize the heat from the turbine bleed to improve the quality of working fluid vapour in the bottoming organic Rankine cycle (ORC). That is a completely novel solution in the literature, which contributes to the increase of ORC efficiency and the overall efficiency of the combined system of the power plant and ORC plant. Calculations have been accomplished for the case when available is a flow rate of low enthalpy hot water at a temperature of 90 °C, which is used for preliminary heating of the working fluid. That hot water is obtained as a result of conversion of exhaust gases in the power plant to the energy of hot water. Then the working fluid is further heated by the bleed steam to reach 120 °C. Such vapour is subsequently directed to the turbine. In the paper 5 possible working fluids were examined, namely R134a, MM, MDM, toluene and ethanol. Only under conditions of 120 °C/40 °C the silicone oil MM showed the best performance, in all other cases the ethanol proved to be best performing fluid of all. Results are compared with the "stand alone" ORC module showing its superiority.