Results 81 to 90 of about 7,332 (199)

Power control system structure of doubly‐fed induction generator connected to current source converter

open access: yesIET Renewable Power Generation, Volume 18, Issue S1, Page 4377-4386, 18 December 2024.
The classical field oriented control and the feedback control with the multi‐scalar variables were considered. The generator is working in the AC grid connection mode. The rotor side of the generator is connected to the current source converter; the stator is directly related to the AC grid.
Marcin Morawiec   +4 more
wiley   +1 more source

Nitrates and phosphates in cave waters of Kraków-Częstochowa Upland, southern Poland [PDF]

open access: yes, 2017
The paper presents the varied presence of nitrates and phosphates in water from caves located in Częstochowa and Kraków, in urban, strongly anthropogenic conditions, representing the vadose zone of the fissure-karstic-porous massif of Upper Jurassic ...
Różkowski, Kazimierz   +7 more
core   +1 more source

Porosity of Castings Produced by the Vacuum Assisted Pressure Die Casting Method

open access: yesArchives of Foundry Engineering, 2015
The paper presents the results of investigations concerning the influence of negative (relative) pressure in the die cavity of high pressure die casting machine on the porosity of castings made of AlSi9Cu3 alloy.
Zyska A.   +3 more
doaj   +1 more source

An Armour from a finery?—a late medieval couter from Ogrodzieniec Castle in the Kraków-Częstochowa Jura

open access: yesArchaeological and Anthropological Sciences, 2020
The paper deals with a couter of a late fourteenth to early fifteenth century date which was found in Ogrodzieniec Castle, Zawiercie District, Poland (now in the collection of the Upper Silesian Museum in Bytom, MG 7755). The find survived in a vestigial
Ewelina Imiołczyk   +5 more
semanticscholar   +1 more source

Virtual reality as a promising method of pain relief in patients with venous leg ulcers

open access: yesInternational Wound Journal, Volume 21, Issue 10, October 2024.
Abstract Pain in patients suffering from hard‐to‐heal wounds is a serious problem that hinders the healing process and affects their quality of life. Virtual reality (VR) is increasingly being used for pain relief. The aim of the study was to assess whether the use of VR during mechanical cleansing of venous leg ulcers would result in a reduction in ...
Kinga Spyrka   +4 more
wiley   +1 more source

Cyclopropanation of Aryl and Styryl Acetonitriles With Selenium‐Based Dielectrophiles

open access: yesEuropean Journal of Organic Chemistry, Volume 27, Issue 21, June 3, 2024.
Base‐promoted cyclopropanations of aryl or styrylacetonitriles with vinyl selenones are described. The formation of the two new C−C bonds proceeds through a Michael addition followed by a cyclization. Such reactions are usually difficult with pronucleophiles not bearing an additional geminal electron‐withdrawing group.
Italo Franco Coelho Dias   +7 more
wiley   +1 more source

AutoML‐based predictive framework for predictive analysis in adsorption cooling and desalination systems

open access: yesEnergy Science &Engineering, Volume 12, Issue 5, Page 1969-1986, May 2024.
Adsorption cooling and desalination system. Abstract Adsorption cooling and desalination systems have a distinct advantage over other systems that use low‐grade waste heat near ambient temperature. Since improving their performance, including reliability and failure prediction, is challenging, developing an efficient diagnostic system is of great ...
Jaroslaw Krzywanski   +8 more
wiley   +1 more source

“Our children”: Moral panic associated with children and collective violence against the Jews in the immediate aftermath of the Second World War in Poland

open access: yesConflict Resolution Quarterly, Volume 41, Issue 3, Page 409-431, Spring 2024.
Abstract Between 1945 and 1946, Poland witnessed three large anti‐Jewish pogroms. The infamous Kielce pogrom of July 4, 1946, which claimed the lives of over 40 Holocaust survivors was preceded by outbursts of collective violence in Rzeszów and in Kraków.
Lukasz Krzyzanowski, Marcin Zaremba
wiley   +1 more source

[rec.] J. Jagieła, A. Sarnat-Ciastko, Dlaczego analiza transakcyjna? Rozmowy o zastosowaniu analizy transakcyjnej w pracy nauczyciela i wychowawcy

open access: yesEdukacyjna Analiza Transakcyjna, 2015
Recenzja książki autorstwa Jarosława Jagieły, Adrianny Sarnat-Ciastko: Dlaczego analiza transakcyjna? Rozmowa o zastosowaniu analizy transakcyjnej w pracy nauczyciela i wychowawcy, Wydawnictwo AJD, Częstochowa 2015, ss ...
Wiga Bednarkowa
doaj   +1 more source

Carmen Hernández Barrera, Dzienniki 1979-1981, tłum. Prezbiterzy Redemptoris Mater pod kierunkiem ks. Piotra Jutkiewicza, Edycja Świętego Pawła, Częstochowa 2021, ss. 316, ISBN 978-83-8131-234-9

open access: yes, 2022
Review: Carmen Hernández Barrera, Dzienniki 1979-1981, tłum. Prezbiterzy Redemptoris Mater pod kierunkiem ks. Piotra Jutkiewicza, Edycja Świętego Pawła, Częstochowa 2021, ss.
Rafał Zehner, Zehner, Rafał
core   +1 more source

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