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Wyświetlanie 1-15 z 58
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
Artykuł
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
Artykuł
Tytuł:
Selected aspects of indoor positioning based on AIDC elements in warehouse facilities
Autorzy:
Lewczuk, K.
Załęski, A.
Powiązania:
https://bibliotekanauki.pl/articles/242845.pdf
Data publikacji:
2018
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
AIDC
indoor positioning
warehousing
logistics
Opis:
The article presents classification of automatic identification and data acquisition techniques (AIDC) as well as techniques for indoor positioning of objects supporting logistic processes, including especially warehousing processes. The use of presented solutions and the possibility of combining AIDC technics with indoor positioning systems to increase the efficiency of logistics processes in warehouses were discussed. This combination can make a tool supporting rational decision making for allocation of idling employees and vehicles to warehouse tasks and reducing empty runs on the base of position analyse. Then, the idea of using popular AIDC devices − mobile terminals with and without RFID scanners to track the position of employees was presented and discussed. Mobile terminals can provide information about position, which can be used for the allocation of tasks (the reverse functions of mobile terminals). Review of AIDC techniques in warehouses and industrial facilities, information flow in AIDC techniques, positioning techniques in a closed space, Resources positioning and the efficiency of the warehouse process, typical and new approaches to positioning resources in warehouse, the reverse function of mobile terminals are presented in the article.
Źródło:
Journal of KONES; 2018, 25, 4; 555-562
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ultrafast Magnetization Dynamics in Epitaxial Ni-Mn-Sn Heusler Alloy Film
Autorzy:
Bonda, A.
Uba, S.
Załęski, K.
Dubowik, J.
Uba, L.
Powiązania:
https://bibliotekanauki.pl/articles/1030478.pdf
Data publikacji:
2018-03
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
75.78.Jp
75.50.-y
78.47.J-
75.30.-m
06.60.Jn
75.40.Gb
Opis:
The work is devoted to studies of ultrafast magnetization dynamics induced by femtosecond laser pulses in ferromagnetic Ni-Mn-Sn shape memory Heusler alloy. We studied epitaxial thin Ni_{54.3}Mn_{31.9}Sn_{13.8} film deposited on (001) MgO substrate. Spin precession in an external magnetic field was triggered and detected by the time-resolved magneto-optical Kerr effect (TRMOKE) using pump-probe technique in dual color scheme experiment. Measurements were performed as a function of magnetic field H and pulse power P. The measured TRMOKE signal is composed of oscillatory and background components, both decaying exponentially in a nanosecond time scale. The precession frequency was determined and found to be varying in the range of 1-10 GHz with H up to 3 kOe and decreasing linearly with P. The dependence of Gilbert damping parameter α on H was determined and discussed.
Źródło:
Acta Physica Polonica A; 2018, 133, 3; 501-504
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
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
Artykuł
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
Artykuł
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
Artykuł
Tytuł:
Porosity of Silica Monoliths with Tailored Mesopores of Ink-Bottle Shape Determined by Nitrogen Adsorption and Positron Annihilation Lifetime Spectroscopy
Autorzy:
Sienkiewicz, A.
Kierys, A.
Gorgol, M.
Zaleski, R.
Powiązania:
https://bibliotekanauki.pl/articles/1033934.pdf
Data publikacji:
2017-11
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
81.05.Rm
68.43.-h
81.70.-q
78.70.Bj
36.10.Dr
Opis:
The comparison of pore size distributions obtained with the use of two porosimetric methods: low temperature nitrogen sorption (LN2) and positron annihilation lifetime spectroscopy (PALS), was performed for porous silica monoliths. Four investigated samples were prepared under various synthesis conditions. Nitrogen sorption showed the presence of bottle-shaped pores in all investigated samples. In addition, it seems that the presence of methanol during synthesis influences porosity to a greater extent than organic additives. Quite good agreement between the LN2 and PALS results was observed only for the silica monolith synthesized with β-cyclodextrins as pore directing agent. The biggest discrepancy in the results obtained from these two techniques was observed for the silica gel synthesized with no additives. The origin of such discrepancies, taking into account the shape of pore size distribution and deficiencies of data analysis techniques, is discussed.
Źródło:
Acta Physica Polonica A; 2017, 132, 5; 1568-1571
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of the conditions of shot peening the Inconel 718 nickel alloy on the geometrical structure of the surface
Autorzy:
Zaleski, K.
Skoczylas, A.
Brzozowska, M.
Powiązania:
https://bibliotekanauki.pl/articles/102751.pdf
Data publikacji:
2017
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
surface roughness
shot peening
Inconel 718
Opis:
This article presents the research results of roughness and topography of the surface of Inconel 718 nickel alloy after shot peening. The evaluation of stereometric properties of the surface layer of the examined material was performed based on the amplitude, height and Abbott-Firestone curve parameters. The shot peening was carried out on the impulse shot peening stand. The impact energy Ez, distance between the traces xs and the ball diameter dk were changed in the range: Ez = 60 ÷ 240 mJ, xs = 0,15 ÷ 0,5 mm, dk = 3,95 ÷ 12,45 mm. The T8000 RC 120-140 device of the Hommel-Etamic company, along with the software, was used for measuring the surface roughness and for determining the material bearing curve. As a result of the machining, the surface roughness was reduced and the selected functional parameters were improved.
Źródło:
Advances in Science and Technology. Research Journal; 2017, 11, 2; 205-211
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zabezpieczanie konstrukcji przed ogniem
Protection of structure against fire
Autorzy:
Zaleski, S.
Brzuzy, A.
Powiązania:
https://bibliotekanauki.pl/articles/111003.pdf
Data publikacji:
2017
Wydawca:
Centrum Rzeczoznawstwa Budowlanego Sp. z o.o.
Tematy:
ochrona bierna
ochrona czynna
pożar
zabezpieczenie przed ogniem
fire protection
passive protection
active protection
fire
Opis:
W referacie przedstawiono system ochrony biernej i czynnej konstrukcji stalowych przed ogniem.
The paper presents a system of passive and active protection of steel structures against fire.
Źródło:
Inżynieria Bezpieczeństwa Obiektów Antropogenicznych; 2017, 3-4; 18-20
2450-1859
2450-8721
Pojawia się w:
Inżynieria Bezpieczeństwa Obiektów Antropogenicznych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Odontogenic phlegmon of the mouth floor: a case report
Autorzy:
Bortnik, P.
Wieczorek, P.
Załęski, P.
Kosierkiewicz, P.
Siemiątkowski, A.
Tryniszewska, E.
Borys, J.
Powiązania:
https://bibliotekanauki.pl/articles/1917820.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Medyczny w Białymstoku
Tematy:
Phlegmon of the mouth floor
odontogenic inflammation
Opis:
Odontogenic phlegmon of the mouth floor—Ludwig's angina (phlegmonae fundi cavi oris seu angina Ludovici)—is a rare, life-threatening, local complication in most cases of odontogenic inflammation. This study presents the case of a patient treated in the Department of Maxillofacial and Plastic Surgery of the University Hospital in Białystok due to phlegmon of the mouth floor resulting from odontogenic inflammation with a dynamic course. Quick diagnostics, surgical intervention as well as antibiotic therapy contributed to its efficient and successful treatment.
Źródło:
Progress in Health Sciences; 2016, 6(2); 178-183
2083-1617
Pojawia się w:
Progress in Health Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Studies on the selected properties of C45 steel elements surface layer after laser cutting, finishing milling and burnishing
Autorzy:
Skoczylas, A.
Zaleski, K.
Powiązania:
https://bibliotekanauki.pl/articles/103068.pdf
Data publikacji:
2016
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
laser cutting
finishing milling
burnishing
Opis:
The article presents the results of studies on surface roughness and microhardness of C45 steel elements after laser cutting, and then finishing milling or burnishing. The aim of milling was to get rid of the characteristic “striae” after laser cutting and to improve geometric accuracy. Burnishing caused hardening of C45 steel elements’ surface layer after laser cutting and improvement in surface roughness. In order to measure surface roughness, the Hommel-Etamic device T8000 RC120 – 400 with software was used. The roughness parameters that were analyzed in the article were: amplitude parameters, height parameters and Abbott-Firestone curve. The microhardness measurements were made with the use of Vicker’s hardness test with a weight of 50 g. As a result of the finishing of the surface after cutting, a decrease in surface roughness and improvements in functional qualities were noticed. In addition, hardening of the edgeside area also occurred, which is an advantageous phenomenon.
Źródło:
Advances in Science and Technology. Research Journal; 2016, 10, 32; 118-123
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
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
Artykuł
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
Artykuł
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
Artykuł
Wyświetlanie 1-15 z 58

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