Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

Wyszukujesz frazę "Konopka, W" wg kryterium: Autor


Wyświetlanie 1-7 z 7
Tytuł:
Polarimetric Fiber Optic System for Static and Dynamic Strain Measurement
Autorzy:
Konopka, W.
Woliński, T. R.
Domański, A. W.
Karpierz, M. A.
Powiązania:
https://bibliotekanauki.pl/articles/2023977.pdf
Data publikacji:
2001-01
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
42.81.Gs
42.81.Pa
Opis:
Polarization properties of the transmitted optical signal in polarimetric fiber-optic sensing systems for dynamic strain measurements as well as for smart structures applications are presented. The smart structure consists of highly birefringent fiber embedded in an epoxy cylinder.
Źródło:
Acta Physica Polonica A; 2001, 99, 1; 207-212
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
CFD analysis of the influence of flaps extension on the aerodynamic characteristics of the M-28 Bryza aircraft
Autorzy:
Szczepaniak, R.
Konopka, B.
Zahorski, T.
Bąbel, R.
Stryczniewicz, W.
Powiązania:
https://bibliotekanauki.pl/articles/243831.pdf
Data publikacji:
2016
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
M-28 Bryza
aerodynamic characteristics
flap
Computational Fluid Dynamics
Opis:
The paper presents a modelling procedure of the M-28 Bryza wing with extended flaps and Computational Fluid Dynamics (CFD) simulations results preformed in order to assess the performance of the investigated wing for various flap extension rates. The M-28 Bryza is a two-engine high-wing aircraft used in the Polish Air Force for short distance airlift of people and equipment. The aim of this work was to determine the aerodynamic characteristics of the investigated wing. The CFD simulations were performed in order to investigate the influence of flap extension on lift and drag coefficients at various angles of attack. In order to validate the results of two different commercial CFD packages were used. The findings are presented in the form of flow visualization and aerodynamic characteristics. The typical and non-standard extension rates were investigated for low, moderate and high angles of attack. The results correlated with the limitations specified in the aircraft manual. The outcome of the presented work confirmed the feasibility of the presented methodology for its use as a supportive tool for providing additional information about airplane performance in standard and non-standard conditions of flight such as landing with one engine working. The results of work might prove useful for M-28 Bryza pilots and maintenance personnel as well as for educational purposes.
Źródło:
Journal of KONES; 2016, 23, 1; 353-360
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Electrodes with various amount of nickel for truck frame repairs
Elektrody otulone do napraw ram pojazdów ciężarowych
Autorzy:
Miros, M.
Majewski, W.
Piwnik, J.
Węgrzyn, T.
Konopka, A.
Powiązania:
https://bibliotekanauki.pl/articles/374479.pdf
Data publikacji:
2016
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
truck frames
exploitation
safety
welding
electrodes
alloy elements
ramy pojazdów ciężarowych
eksploatacja
bezpieczeństwo
spawanie
elektrody
elementy stopowe
Opis:
The goal of this paper is to analyze the exploitation and safety conditions of weld steel structure of car body truck frames after welding repairs made by covered electrodes. The main role of conditions in connected with materials, alloy elements in steel and filer materials, welding technology, state of stress and temperature. Because of that, good selection of steel and choice of welding method for proper steel structure repairs are very important. For responsible steel, structures like truck frames and low alloy steel are used, very often with small amounts of carbon and some amounts of alloy elements such as Ni and Mo in low alloy steel and their welds. To study the frame’s flexibility and resistance, welded joints have been analyzed. Samples have been welded by steel electrodes with various amounts of Ni.
Celem artykułu jest analiza właściwości eksploatacyjnych oraz bezpieczeństwa naprawianych ram pojazdów ciężarowych z użyciem spawania. Ważną rolę odgrywają połączenia materiałów, pierwiastki stopowe, materiały dodatkowe, technologia spawania, stan naprężeń oraz temperatura. Bardzo istotne są odpowiedni dobór stali oraz metody spawalniczej. Na odpowiedzialne konstrukcje stalowe, jak np. ramy pojazdów ciężarowych, jest używana niskostopowa stal, często z niską zawartością węgla oraz dodatkiem pierwiastków stopowych, takich jak Ni oraz Mo. Do oceny elastyczności oraz wytrzymałości połączeń spawanych w ramach pojazdów ciężarowych, analizowano właściwości połączeń wykonanych elektrodami o różnej zawartości Ni.
Źródło:
Transport Problems; 2016, 11, 4; 21-27
1896-0596
2300-861X
Pojawia się w:
Transport Problems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The possibility of producing graded Al2O3-Mo, Al2O3-Cu, Al2O3-W composites using CSC method
Autorzy:
Wachowski, M.
Kaszuwara, W.
Miazga, A.
Konopka, K.
Zygmuntowicz, Justyna
Powiązania:
https://bibliotekanauki.pl/articles/201338.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
centrifugal slip casting
ceramic-metal composites
SEM
Al2O3-Mo
Al2O3-Cu
Al2O3-tungsten
Al203-W
odlewanie odśrodkowe
kompozyty ceramiczno-metalowe
Al2O3-W
Opis:
The subject of the study was the production and characterization of three ceramic-metal graded composites, which differed in addition of the metallic phase. The following composites systems were investigated: Al2O3-Mo, Al2O3-Cu, Al2O3-W. Composites were produced by centrifugal slip casting method. This technique combines the classic casting of the slurry into porous molds with the action of centrifugal force. As a result, sleeve-shaped shapes with a metallic phase gradient were obtained. X-ray phase analysis have not revealed new phases in the produced composites. The type of metallic phase and its distribution in the ceramic matrix influenced the hardness of the produced composites.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2019, 67, 2; 179-184
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Manufacturing of ZrO2-Ni graded composites via centrifugal casting in the magnetic field
Autorzy:
Wachowski, M.
Kosturek, R.
Winkler, H.
Miazga, A.
Lada, P.
Kaszuwara, W.
Konopka, K.
Zygmuntowicz, J.
Powiązania:
https://bibliotekanauki.pl/articles/200807.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
ZrO2-Ni
ceramic matrix composites
FGM
microstructure
magnetic field
Opis:
The paper presents the possibility of fabricating ceramic-metal composites by an innovative method of centrifugal slip casting in the magnetic field. It was examined whether the use of this method would allow obtaining a gradient concentration of metal particles in the ceramic matrix. In the applied technique, the horizontal rotation axis was used. The study investigated the effect of solid phase content on the properties and microstructure of the products. Water-based suspensions with 35, 40, 45 and 50 vol.% of solid-phase content were prepared with 10 vol.% additional of nickel powder. The viscosity of prepared slurries was considered. The gradient distribution of nickel particles in the zirconia matrix was observed on SEM. Vickers hardness of ZrO2-Ni composites has been measured. The research revealed that the physical properties depend on the volume fraction of solid content and increase as the volume of solid content increases.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2020, 68, 3; 539-545
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Quality of life of children suffering from motor disabilities as evaluated by their parents
Autorzy:
Wojtkowski, J.
Sienkiewicz, D.
Okurowska-Zawada, B.
Paszko-Patej, G.
Konopka, A.
Okulczyk, K.
Średzińska, K.
Dmitruk, E.
Mirska, A.
Kułak, W.
Powiązania:
https://bibliotekanauki.pl/articles/1918580.pdf
Data publikacji:
2018-01-09
Wydawca:
Uniwersytet Medyczny w Białymstoku
Tematy:
Quality of life
motor disability
children
parents
Opis:
Purpose: We assessed the quality of life of children with motor disabilities in comparison with healthy children, as evaluated by their parents, using the CHQ-PF28 questionnaire (Child Health Questionnaire—Parent Form). Materials and methods: In a prospective study, we evaluated the quality of life of 105 children with motor disabilities. Results: Our research showed lower quality of life in the group of children with motor disabilities compared with controls, both in terms of physical and psychosocial health. Significant correlations between independent walking and physical functioning, general behavior, and mental health of children suffering from motor disabilities were found. According to the average indices of quality of life of children suffering from motor disabilities, depending on sex, the greatest differences occurred in behavior and change of health status, while the smallest differences in self-esteem and parental involvement, compared with controls. In the case of healthy children, the largest differences appeared in the perception of pain, behavior, and self-esteem; whereas, the smallest variations occurred in the change of health status and physical activity. Conclusion: Children suffering from motor disabilities demonstrate lower quality of life compared with healthy children.
Źródło:
Progress in Health Sciences; 2017, 7(2); 60-66
2083-1617
Pojawia się w:
Progress in Health Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Silencing expression of the CBP80 gene for engineering drought-tolerant Solanum tuberosum plants
Autorzy:
Wyrzykowska, A.
Pieczynski, M.
Marczewski, W.
Hennig, J.
Dolata, J.
Bielewicz, D.
Piontek, P.
Krusiewicz, D.
Strzelczyk-Zyta, D.
Konopka-Postupolska, D.
Krzeslowska, M.
Jarmolowski, A.
Szweykowska-Kulinska, Z.
Powiązania:
https://bibliotekanauki.pl/articles/79805.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
climate change
CBP80 gene
Solanum tuberosum
plant
drought tolerance
transgenic plant
water shortage
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 3
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-7 z 7

    Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies