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Number of results: 6
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Abstract

In this paper, the Author presents a method of simulating various "test ride" scenarios for an automobile tested on engine test bench. The research possibilities offered by the semi-virtual system consisting of a real engine and vehicle motion simulator are underlined. The Author also describes the method of performing tasks in basic phases of vehicle testing. The following article by the Author, "The method of executing simulation procedures on engine test bench in traffic tests of combustion engines", will present requirements concerning test accuracy, structure and equipment of the test stand, and the characteristics of software that controls the tests and supervises its outcome.
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Authors and Affiliations

Krzysztof Paweł Wituszyński
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Abstract

Development of electronics, which aims to improve the functionality of electronic devices, aims at increasing the packing of transistors in a chip and boosting clock speed (the number of elementary operations per second). While pursuing this objective, one encounters the growing problem of thermal nature. Each switching of the logic state at the elementary level of an integrated circuit is associated with the generation of heat. Due to a large number of transistors and high clock speeds, higher heat flux is emitted by the microprocessor to a level where the component needs to be intensively cooled, or otherwise it will become overheated. This paper presents the cooling of microelectronic components using microjets.
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Authors and Affiliations

Artur Rusowicz
Maciej Leszczyński
Andrzej Grzebielec
Rafał Laskowski
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Abstract

The paper presents the special software for transient FE analysis of coupled electromagnetic-thermal problems in a squirrel cage submerged motor working at cryogenic temperature. A time-stepping finite element method and transients analysis of an induction motor has been applied. The non-linearity of the magnetic circuit, the movement of the rotor, skewed slots, and the influence of temperature on electric and thermal properties of the materials has been taken into account. Developed on the basis of presented algorithm a computer program used to analyze the phenomenon of current displacement in the rotor bars of high-voltage cage induction motor working in cryogenic conditions. The results of the simulations are presented.

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Authors and Affiliations

Mariusz Barański
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Abstract

One of the most important functions of 18th-century occasional decorations was to communicate current political issues. The artistic setting of ceremonies related to political events can of course be analyzed as an independent entity but may also be studied as a fragment of a larger message that encompasses prints, literature and political ceremony.
The present article will adopt the latter approach, and analyze the political message of the 1750s on the subject of the division of the Entail of Ostrog, resulting from the so-called “Transaction of Kolbuszowa” in 1753. This event, which had a huge impact on political relations of the time, was also of key importance to the chief players of the period as well as their artistic initiatives (for example J. K. Branicki, who became the Great Crown Hetman after Józef Potocki’s death). The theme of the Entail of Ostrog can be seen in the artistic settings of ceremonies related to the activities of the Senatorial Commission, as well as in those related to two terms of the Crown Tribunal, which in 1754 and 1755 was overshadowed by the consequences of the Kolbuszowa transaction. The above-mentioned bodies acted on behalf of the entire Polish-Lithuanian Commonwealth; therefore, ideas of political unity and total consensus were emphasized in the decorations. In this way, specific decisions were legitimized. Occasional decorations made reference to the Gigantomachy, understood as an internal conflict, and stressed the importance of overcoming internal enemies for the sake of state unity. Banquets were also of great importance in conveying this message, not only because participation alone was seen as a manifestation of belonging to a certain community, but also because the ideological content of the table decorations presented the political values of the guests and served as a commentary on current political issues.
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Authors and Affiliations

Krzysztof Gombin
1

  1. Lublin
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Abstract

In this interview, conducted at the XXIII International Congress of Historical Sciences in Poznan, Antoon De Baets (emeritus professor of History, Ethics and Human Rights at the University of Groningen, the Netherlands) addresses key issues for historians and other produ-cers of history. His remarks about the scientific status of historiography and the range of different threats to history seem particularly important. He talks not only about the most direct crimes against historians and history, but also about issues like hindsight bias and fake news. The professional duties of historians and the issue of ethical codes for historians are also discussed.
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Authors and Affiliations

Piotr Kowalewski Jahromi
1
ORCID: ORCID

  1. Uniwersytet Śląski w Katowicach

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