Results 61 to 70 of about 15,144 (162)

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

Piotr Nitecki, Kardynałowie Kościoła w Polsce, Częstochowa 1999, ss. 114.

open access: yesFolia Historica Cracoviensia
Recenzja: Piotr Nitecki, Kardynałowie Kościoła w Polsce, Częstochowa 1999, ss. 114.
Krzysztof Prokop
doaj   +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

Modeling of the grain structure of continuous ingot with procast software [PDF]

open access: yes, 2013
В работе представлены результаты численного моделирования роста внутренней структуры слитков в течение непрерывного литья стали. Для проведения исследований были выбраны две марки стали: марка А, предназначенная для прокатки листов, применяемых в ...
Бурбелько, А.   +3 more
core  

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

Upper Silesia: The revival of a traditional industrial region in Poland [PDF]

open access: yes, 2014
This paper provides an insight into the transformation processes that have affected Upper Silesia, a Polish border region with long traditions of industrialisation, autonomous structures and volatile historical changes.
Baranyai, Nóra, Lux, Gábor
core   +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

State of Research on the History of Football in Kielce Province in the Years 1919–1939

open access: yesSport i Turystyka
The following article presents the state of research on the history of football in Kielce province in the years 1919–1939. During the discussed period, football in the province of Kielce developed in four centres: Częstochowa, Kielce, Radom and the ...
Krzysztof Kościański
doaj   +1 more source

Holocene palaeoecological changes recorded in mollusc-bearing cave sediments, the Cave above the Słupska Gate (southern Poland) [PDF]

open access: yes, 2016
The Cave above the Słupska Gate (southern Poland) contains about 2m depth of mollusc-bearing deposits. Radiocarbon and archaeological dating indicate that these deposits accumulated during the Holocene (Preboreal to Subatlantic), although the earliest ...
Alexandrowicz, W. P.   +3 more
core   +2 more sources

“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

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