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Wyszukujesz frazę "power vacuum" wg kryterium: Temat


Wyświetlanie 1-4 z 4
Tytuł:
Macron in praise of folly? How Macron’s France seeks to gain from power vacuum during the war in Ukraine
Autorzy:
Welc, Henry
Powiązania:
https://bibliotekanauki.pl/articles/24020098.pdf
Data publikacji:
2023
Wydawca:
Krakowska Akademia im. Andrzeja Frycza Modrzewskiego
Tematy:
Macron
French diplomacy
power vacuum
neorealism
Ukraine war
Opis:
The Russian invasion has profoundly changed major power relations in which Paris was actively involved to the benefit of the latter, mostly at three levels. The first level, probably the most significant in Macron’s mind, is the European one. Not only did the economic and energy-related repercussions of the conflict put down the eternal German rival, shaken internally due to its historical ties with Moscow and not even sparing the European ‘Mutti,’ but Macron’s France also had the incredible timing of the French Presidency of the Council of the EU to assert a certain French advantage in Europe, and over Germany. The EU seems no longer governed by a duumvirate; the French presidency has unprecedentedly reinforced the French leadership in Brussels, despite various visions of the war between Western and Eastern Europe. Better yet, Macron has finally been able to seize the opportunity and advocate for his dearest project of a ‘European Defence.’ Strategic areas for French-privileged diplomatic spheres remain at the second level. International consequences of the war have transformed the French project. On the one hand, it has been quite disappointing that few have correlated the end of the Barkhane operation in Sahel with the ongoing conflict in Caucasia. On the other hand, it is certainly impossible not to notice the renewed French diplomatic efforts with the Gulf States, clearly shifting in a direction different from the one prior to the war and in favour of a closer rapprochement with country leaders who are not properly aligned with the belligerents in the Ukraine war. Finally, the Ukrainian war has enabled Paris to revive its relations with Washington, not to mention an attempt to stand at the same power level.
Źródło:
Bezpieczeństwo. Teoria i Praktyka; 2023, LII, 3; 117-129
1899-6264
2451-0718
Pojawia się w:
Bezpieczeństwo. Teoria i Praktyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The noise emitted by a vacuum cleaner treated as a device with extensive sound sources
Autorzy:
Rukat, W.
Jakubek, B.
Madej, A.
Powiązania:
https://bibliotekanauki.pl/articles/127827.pdf
Data publikacji:
2018
Wydawca:
Politechnika Poznańska. Instytut Mechaniki Stosowanej
Tematy:
devices with extensive sound sources
DESS
sound power level
vacuum cleaner
noise
urządzenia z zewnętrznymi źródłami dźwięku
poziom mocy akustycznej
odkurzacz
hałas
Opis:
Vacuum cleaners can be found in almost every household. They are one of the most intense noise sources there. Noise generated by vacuum cleaners is partially of mechanical, electrical and aerodynamic origin. A suction unit is the source of mechanical and electromagnetic noise. A suction nozzle or a cleaning head as well as a flexible hose that connects the components are sources of aerodynamic noise. The noise of the suction unit depends on the load and the technical condition of the motor. The noise of the nozzle and the hose depend on the flow capacity, presence of solid particles and the type of cleaned surface. The article presents a comparison of acoustic parameters of a vacuum cleaner working on various surfaces. In addition, the noise generated by the vacuum cleaner was compared according to the standard noise testing procedure and according to the definition of devices with extensive sound sources.
Źródło:
Vibrations in Physical Systems; 2018, 29; 1-8
0860-6897
Pojawia się w:
Vibrations in Physical Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Applications of monitoring of electric power parameters to performance evaluation of a model vacuum-assisted moulding installation
Autorzy:
Ziółkowski, E.
Brzeziński, M.
Wrona, R.
Smyksy, K.
Zyzak, P.
Powiązania:
https://bibliotekanauki.pl/articles/382938.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
mechanizacja procesów odlewniczych
automatyzacja procesów odlewniczych
pomiar elektroenergetyczny
formowanie podciśnieniowe
mechanisation of foundry processes
automation of foundry processes
electric power measurements
vacuum-assisted moulding processes
Opis:
Vacuum conditions in foundry installations are generated using electric-driven vacuum pumps. The purpose of the experiment is to evaluate the performance of a vacuum-assisted system for compaction of moulding sand basing on registered plots of selected electric power parameters of the power-supplying system of the pumps. Model testing done on an experimental vacuum system installation, power-supplied from a system incorporating the recorders of instantaneous current and voltage values. Following the numerical procedure, the experimental data are analysed to yield mathematical relationships between the variations of the generated vacuum pressure levels and variations of selected electric power parameters. Registered and computed values of selected parameters: instantaneous and RMS voltage and current values, active, reactive and apparent power levels and power coefficient allow for diagnosing the adequacy and reliability of the system operation. According to the authors, the applied monitoring of the power parameters of a vacuum-assisted installation may become an effective and easy practical method of evaluating the performance of such installations, used also in foundry plants.
Źródło:
Archives of Foundry Engineering; 2012, 12, 2; 267-272
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis and assessment of measurements results of electric power demand in a model vacuum-assisted moulding installation
Autorzy:
Smyksy, K.
Wrona, R.
Brzeziński, M.
Ziółkowski, E.
Powiązania:
https://bibliotekanauki.pl/articles/380436.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
mechanizacja procesów odlewniczych
automatyzacja procesów odlewniczych
pomiar elektroenergetyczny
formowanie podciśnieniowe
mechanisation of foundry processes
automation of foundry processes
electric power measurements
vacuum assisted moulding processes
Opis:
In this article the main problems related with the proper choice of the design and operation parameters of vacuum installation in vacuum moulding system have been discussed. In such system a vacuum are generated using electric-driven vacuum pumps. The aim of the experiment is to evaluate the performance of a vacuum system basing on registered plots of selected electric power parameters of the power-supplying system of the pumps with parallel measurements instantaneous values of pressure in selected points of model stand. The measurements system for power-supply unit has incorporated the recorders of instantaneous current and voltage values. Following the suitable numerical procedure, the experimental data are analysed to yield mathematical relationships between the variations of the generated vacuum pressure levels and variations of selected electric power parameters. According to the authors, the applied measurements system of the parameters of a vacuum-assisted installation may become an effective and easy practical method of evaluating the performance of such installations, used also in industry.
Źródło:
Archives of Foundry Engineering; 2012, 12, 4; 135-140
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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