Autor: Zaleski, A - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Badania wybranych wskaźników skrawalności podczas frezowania stopu Inconel 718 narzędziami ceramicznymi
Investigations of selected machinability indicators in the milling of Inconel 718 alloy using ceramic tools
Autorzy:: Skoczylas, A.
Zaleski, K.
Powiązania:: https://bibliotekanauki.pl/articles/195526.pdf
Data publikacji:: 2017
Wydawca:: Politechnika Rzeszowska im. Ignacego Łukasiewicza. Oficyna Wydawnicza
Tematy:: ceramika SIALON
frezowanie
Inconel 718
chropowatość powierzchni
moment skrawania
SIALON ceramics
milling
surface roughness
cutting torque
Opis:: W artykule przedstawiono wyniki badań momentu skrawania i chropowatości powierzchni w procesie frezowania czołowego stopu niklu Inconel 718. W eksperymencie wykorzystano narzędzia monolityczne o średnicy d = 12 mm, wykonane z ceramiki SIALON. Badania przeprowadzono przy zmiennych parametrach technologicznych: ap = 0,8-1,2 mm, vc = 400-898 m/min, fz = 0,07-0,16 mm/ostrze. Zauważono, że wzrost posuwu na ostrze fz i głębokości skrawania ap powoduje większe wartości momentu skrawania Mc. W zakresie vc = 400-732 m/min następuje spadek wartości momentu skrawania Mc. Parametry chropowatości powierzchni również zależą od warunków obróbki.
This paper presents the results of an investigation of the cutting torque and surface roughness in the face milling of nickel-based alloy Inconel 718. In the experimental tests monolithic tools with a diameter of d = 12 mm made of SIALON ceramics were used. The tests were conducted at variable technological parameters: ap = 0.8-2 mm; vc = 400-893 m/min; fz = 0.07-0.16 mm/per tooth. It has been found that increasing the feed per tooth fz and the depth of cut ap resulted in a higher cutting torque. In the range of vc = 400-732 m/min the decrease of cutting torque Mc was observed. Surface roughness parameters also depended on machining conditions.
Źródło:: Zeszyty Naukowe Politechniki Rzeszowskiej. Mechanika; 2017, z. 89 [295], 3; 369-378
0209-2689
2300-5211
Pojawia się w:: Zeszyty Naukowe Politechniki Rzeszowskiej. Mechanika
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Classification of brown earths based on field and laboratory properties: problematic issues and proposition of their solution
Autorzy:: Woznica, K.
Jozefowska, A.
Sokolowska, J.
Mazurek, R.
Zaleski, T.
Powiązania:: https://bibliotekanauki.pl/articles/971311.pdf
Data publikacji:: 2019
Wydawca:: Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:: brown earths
polish soil classification
field guide
cambisols
Opis:: In this paper, the current problems associated with the classification of brown earths, are presented. According to the Polish Soil Classification (PSC) (1989, 2011), base saturation is the main parameter for identifying eutrophic and dystrophic brown soils. In practice, however, it is not possible to determine the base saturation value in the field. Therefore, the aim of this study was to estimate the base saturation using a regression equation and create a field guide for brown earths, based on the pH value, measured using a Hellige indicator, and the calcium carbonate content. Determination of the pH ranges enabled the classification of brown earth types in the field. These results suggest that pH can be used as a proxy for base saturation especially in the field. A change in the hierarchy of soil (sub)types is proposed for the new Polish Soil Classification.
Źródło:: Polish Journal of Soil Science; 2019, 52, 2; 225-234
0079-2985
Pojawia się w:: Polish Journal of Soil Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Correlation of clinical symptoms, endoscopic features and density of oesophageal eosinophilia in children with newly-diagnosed eosinophilic esophagitis
Autorzy:: Załęski, A.
Banasiuk, M.
Sokół-Łupińska, K.
Karolewska-Bochenek, K
Banaszkiewicz, A.
Powiązania:: https://bibliotekanauki.pl/articles/28762734.pdf
Data publikacji:: 2021
Wydawca:: Instytut Medycyny Wsi
Źródło:: Annals of Agricultural and Environmental Medicine; 2021, 28, 3; 404-408
1232-1966
Pojawia się w:: Annals of Agricultural and Environmental Medicine
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Determination of the Magnetic Field Distribution in the Bi2212 superconducting Single Crystal by the Scanning EPR-Probe
Autorzy:: Drulis, H.
Folcik, L.
Drulis, M.
Zaleski, A.
Suleimanov, N. M.
Powiązania:: https://bibliotekanauki.pl/articles/1968771.pdf
Data publikacji:: 1998-02
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 74.72.-h
76.30.-v
Opis:: The profile of the magnetic field distribution over the surface of superconducting sample is studied by the scanning an electron paramagnetic resonance microprobe. The magnetic field distribution is mapped from the measurements of the spin probe EPR-signal shift.
Źródło:: Acta Physica Polonica A; 1998, 93, 2; 403-407
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Effect of Nano-SiC Doping on the Superconducting Critical Parameters in $MgB_2$/Fe Wires and Tapes
Autorzy:: Gajda, D.
Zaleski, A.
Morawski, A.
Kario, A.
Powiązania:: https://bibliotekanauki.pl/articles/1813696.pdf
Data publikacji:: 2008-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 74.70.Ad
74.25.Sv
Opis:: In this paper the results of critical current measurements for $MgB_2$ wires and tapes in iron sheath with and without nano-SiC doping are presented. We focus on power-in-tube processing technique, using both in situ and ex situ methods. In situ $MgB_2$ wires and tapes were fabricated from $MgH_2$ and B or Mg and B powders. The methods such as hydrostatic extrusion and rolling were used. The samples were annealed under high Ar gas pressure (hot isostatic pressing) at 750°C and 1.0 GPa for 40 min. It was found that critical current of $MgB_2$/Fe superconducting wire or tape with nano-SiC dopant increased in higher magnetic field values in comparison to pure $MgB_2$. A significant difference of $J_c$ in tapes made by in situ way from $MgH_2$ and Mg were found.
Źródło:: Acta Physica Polonica A; 2008, 113, 1; 371-374
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Effect of plasma cutting parameters upon shapes of bearing curve of C45 steel surface
Autorzy:: Skoczylas, A.
Zaleski, K.
Powiązania:: https://bibliotekanauki.pl/articles/102911.pdf
Data publikacji:: 2015
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:: plasma cutting
bearing curve
surface
roughness
Opis:: The article presents the results of studies on the effect of plasma cutting technological parameters upon the shape of bearing curves and the parameters of the curve. The topography of surface formed by plasma cutting were analyzed. For measuring surface roughness and determining the bearing curve the appliance T8000 RC120 – 400 by Hommel-Etamic was used together with software.
Źródło:: Advances in Science and Technology. Research Journal; 2015, 9, 27; 78-82
2299-8624
Pojawia się w:: Advances in Science and Technology. Research Journal
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Effect of vibration shot peening parameters upon shapes of bearing curves of alloy steel surface
Autorzy:: Zaleski, K.
Skoczylas, A.
Powiązania:: https://bibliotekanauki.pl/articles/102198.pdf
Data publikacji:: 2015
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:: vibration shot peening
bearing curve
surface roughness
Opis:: The article presents the results of studies on the effect of technological parameters of vibration shot peening upon the shape of bearing curves and the parameters of that curve. The topography of surface formed in result of vibration shot peening and pre-machining, which was grinding, were analyzed. The material used in the studies was alloy steel 30HGSA. The shot peening process was performed on an appliance equipped with a kinematic vibrator. Shot peening time t, vibrator oscillations (vibrations) frequency ν, as well as vibrator oscillations amplitude A were changed within: t = 1–15 min, ν = 17,5–35 Hz, A = 10,3–17,3 mm. For measuring surface roughness and determining the bearing curve the appliance T8000 RC120-400 by Hommel- Etamic was used together with the software. In result of the machining performed surface roughness decreased, and the parameters of bearing curve improved.
Źródło:: Advances in Science and Technology. Research Journal; 2015, 9, 25; 20-26
2299-8624
Pojawia się w:: Advances in Science and Technology. Research Journal
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Electrical and Magnetic Properties of Selected Fe-Based High Entropy Alloys
Autorzy:: Perzyńska, K.
Go, A.
Szymański, K.
Biernacka, M.
Hawełek, Ł.
Kalska-Szostko, B.
Oleszak, D.
Rećko, K.
Waliszewski, J.
Zaleski, P.
Powiązania:: https://bibliotekanauki.pl/articles/1375573.pdf
Data publikacji:: 2014-10
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 71.23.-k
71.55.Ak
72.15.-v
72.15.Eb
75.50.Bb
82.80.Ej
Opis:: The electrical and magnetic properties of $Fe_{0.5}A_{0.5}$ alloys are presented, where the A corresponds to various compositions of the elements: A = (Al, Si, V, Cr, Co, Ga, Ni, Ge). The system is closely related to the known family of high entropy alloys. The samples were synthesized by arc melting and/or melt spinning technique and exhibit a regular type of crystal structure. Lattice parameters are systematically smaller than the estimates based on metallic radiuses of the elements. Temperature dependences of resistivities show maxima for some compositions. This behavior is consistent with results of electronic structure calculations, where a low density of states at the Fermi level were predicted. Also the measured magnetic moments are in good agreement with results of calculations. It is thus presented that some physical properties can be designed by appropriate choice of the chemical composition within the same simple structure.
Źródło:: Acta Physica Polonica A; 2014, 126, 4; 999-1004
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Epitaxial Growths and Magnetization Dynamics of $Ni_{2}MnSn$ Heusler Alloy Films
Autorzy:: Dubowik, J.
Gościańska, I.
Załęski, K.
Głowiński, H.
Ehresmann, A.
Kakazei, G.
Bunyaev, S.
Powiązania:: https://bibliotekanauki.pl/articles/1427193.pdf
Data publikacji:: 2012-05
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 75.70.Ak
75.50.+g
Opis:: Ferromagnetic resonance has been investigated in $Ni_{2}MnSn$ Heusler alloy films. The films were deposited at 673
Źródło:: Acta Physica Polonica A; 2012, 121, 5-6; 1121-1123
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Gas filling of SBA - 15 silica micropores probed by positron annihilation lifetime spectroscopy (PALS)
Autorzy:: Gorgol, M.
Zaleski, R.
Kierys, A.
Powiązania:: https://bibliotekanauki.pl/articles/147961.pdf
Data publikacji:: 2013
Wydawca:: Instytut Chemii i Techniki Jądrowej
Tematy:: SBA-15 porous silica
positron annihilation
Opis:: Positron annihilation lifetime measurements were conducted in situ while two gasses (nitrogen and oxygen, respectively) were introduced into the SBA-15 porous silica sample. Slow changes in lifetime spectra were observed during a long lasting gas interaction with the sample. Introduced gases slowly filled the free volumes, starting from the smallest ones, especially small micropores. In the presence of a gas, the rate of change of ortho-positronium (o-Ps) and unbound positron intensity was larger than the rate of change of lifetime. This suggests the existence of an additional process, which reduces the number of ortho-positronium atoms due to the interaction with the gas. Moreover, the process of filling pores with gas was slower than the process of emptying them while the gas was pumped out.
Źródło:: Nukleonika; 2013, 58, 1; 229-233
0029-5922
1508-5791
Pojawia się w:: Nukleonika
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Giant lipoma of the face and neck – a case report
Autorzy:: Bortnik, P.
Borys, J.
Załęski, P.
Stankevich, A.
Tryniszewska ., E.
Wieczorek, P.
Powiązania:: https://bibliotekanauki.pl/articles/1918470.pdf
Data publikacji:: 2017
Wydawca:: Uniwersytet Medyczny w Białymstoku
Tematy:: Giant lipoma
lipomatosis
benign tumor
face and neck
Opis:: A 65-year-old patient with multiple lipomas of various body regions presented to the Maxillofacial Surgery Clinic in Bialystok to treat a giant lipoma of the face and neck. After undergoing in-depth diagnostics (CT of this area), the patient was qualified and prepared for planned surgery in the clinic. The treatment of choice was a complete surgical excision of the lipoma. The intra- and postoperative course was uneventful. Postoperative histopathological examination confirmed the tentative diagnosis established on the basis of the fine-needle aspiration biopsy and clinical examination.
Źródło:: Progress in Health Sciences; 2017, 7(1); 199-204
2083-1617
Pojawia się w:: Progress in Health Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Impact of Impulse Shot Peening Parameters on Properties of Stainless Steel Surface
Autorzy:: Wiertel, M.
Zaleski, K.
Gorgol, M.
Skoczylas, A.
Zaleski, R.
Powiązania:: https://bibliotekanauki.pl/articles/1033967.pdf
Data publikacji:: 2017-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 81.65.-b
81.20.Wk
62.20.Qp
61.72.-y
78.70.Bj
Opis:: Shot peening was applied to austenitic stainless steel 1.4541 (EN). The surface treatment was performed at various impact energies E, impact densities j and ball diameters D. This resulted in improved microhardness, which increases monotonically with the increase of E, j and 1/D. However, its changes with E and j achieve saturation at about 400 HV0.1. On the contrary, no saturation is observed in the investigated range for 1/D. In the un-shot peened 1.4541 (EN) steel, the lifetime component of low intensity was found with use of positron annihilation lifetime spectroscopy (PALS). It corresponds to positron annihilation from delocalized state of positrons in bulk. In the shot peened samples the bulk component is no longer observed. Instead, two types of defects can be identified: vacancy-like defects coupled with edge dislocations and vacancies or their small clusters (consisting 3÷5 vacancies). The results of PALS and hardness testing do not correspond very well, especially in the case of the samples shot peened with balls of varying diameters. The most probable reason for this are different depth profiles of both methods. It seems that the defects, which are responsible for the increase of static microhardness above 400 HV0.1 are located mostly below the surface layer penetrated by positrons.
Źródło:: Acta Physica Polonica A; 2017, 132, 5; 1611-1615
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Impact of vibratory and rotational shot peening onto selected properties of titanium alloy surface layer
Autorzy:: Zaleski, K.
Zyśko, A
Powiązania:: https://bibliotekanauki.pl/articles/102448.pdf
Data publikacji:: 2014
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:: shot peening
titanium alloy
surface layer
surface roughness
microhardness
Opis:: This study presents the results of tests on impact of vibratory and rotational shot peening of the Ti6A12Mo2Cr titanium alloy onto the processed object surface roughness and surface layer microhardness. The external surfaces of ring-shaped samples were shot peened. The preceding process consisted of turning with a cubic boron nitride blade knife. Steel beads, having a diameter of 6 mm, were used as a processing medium. The variable parameters of shot peening were vibrator amplitude and shot peening time. The range of recommended technological parameters for vibratory and rotational shot peening was determined. As a result of shot peening, the surface roughness could be reduced by approximately 4 times and the surface layer could be hardened to the depth of approximately 0.4 mm.
Źródło:: Advances in Science and Technology. Research Journal; 2014, 8, 22; 66-70
2299-8624
Pojawia się w:: Advances in Science and Technology. Research Journal
Dostawca treści:: Biblioteka Nauki