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An innovative and environmentally safe method to manufacture high-quality iron castings for possible use as elements of agricultural machines

100%

Pytel A., Stefanski Z.

Teka Komisji Motoryzacji i Energetyki Rolnictwa

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2011

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tom 11C

The article presents the experience related with the manufacture of utility castings poured in bentonitebonded sands on a pilot stand. The technological guidelines were presented for the ductile iron castings weighing 40 kg and 10 kg. For individual castings, the mould technology has been developed, cross-sections of the gating and feeding systems were calculated, and pilot pattern equipment was designed. The results of mechanical tests and structure examinations were discussed. The work will continue within the framework of the project No. POIG.01.03.01-12-061/08-00. The technology currently developed relates to high-quality cast iron with spheroidal and vermicular graphite without and with the addition of alloying elements, including also the grade resistant to thermal fatigue. The idea is to simplify the methods used so far for the manufacture of cast iron subjected to spheroidisation or vermicularisation in a ladle and replace them with an inmould treatment. These steps are expected to improve the ecological conditions, reduce the fume and glare effects related with magnesium treatment, and improve the process economics. The innovative method, discussed in this work and developed further under the above mentioned project, can be successfully used for casting various elements of the agricultural machinery, resulting in increased mechanical properties of the cast elements, longer life on performance and improved magnesium recovery.

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The problem of performance life of structural elements under the conditios of thermal fatigue

100%

Pytel A., Pysz S.

Teka Komisji Motoryzacji i Energetyki Rolnictwa

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2011

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tom 11

3

Wybrane parametry jakościowe winogron uprawianych w Polsce południowej

81%

Krosniak M., Gastol M., Banach P., Pytel A.

Żywność Nauka Technologia Jakość

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2009

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tom 16

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nr 4

Na przestrzeni ostatnich lat wzrasta zainteresowanie uprawą winorośli w polskich warunkach. Poszukuje się odmian, które posiadają odpowiednie walory użytkowe oraz zdrowotne. Celem pracy było przebadanie charakterystyki jakościowej soków z owoców winorośli szlachetnej rosnącej w Garlicy Murowanej koło Krakowa. Badaniami objęto pięć odmian winorośli: Jutrzenka, Seyval Blanc, Rondo, Marechal Foch i Muskat Odeski uprawianych w warunkach polskich. W sokach oznaczono kwasowość w przeliczeniu na kwas winowy - metoda potencjometryczna, ekstrakt - metoda refraktometryczna, zawartość polifenoli ogółem - spektrofotometryczna, zdolność antyoksydacyjną FRAP (Ferric Reducing Antioxidant Power) metoda spektrofotometryczna oraz pierwiastki: Ca, K, Na i Zn - płomieniowa absorpcja atomowa AAS. Spośród przebadanych odmian Marechal Foch i Rondo (odmiany czerwone) posiadały wysokie wartości polifenoli (odpowiednio 36,8 oraz 30,1 g GAE L⁻¹), i FRAP (16210 i 6585 µmol L⁻¹), a także oznaczonych pierwiastków. Odmiana o jasnych owocach - Jutrzenka - posiadała bardziej zbliżone wartości powyższych parametrów do odmian czerwonych niż do odmian białych: Muskat Odeski i Seyval Blanc. Ostatnia z wymienionych odmian była najuboższa w badane składniki.

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Transverse ligament of the knee in humans

81%

Ratajczak W., Jakubowicz M., Pytel A.

Folia Morphologica

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2003

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tom 62

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nr 3

293-295

The purpose of this study was to trace the histological structure of the transverse ligament of the knee and its relation to the inferior lateral genicular artery. Investigations were carried out on 20 lower limbs (10 males, and 10 females) from the Department of Anatomy. It was found that close to the attachment of the transverse ligament to the menisci, bundles of fibres pass in vertical, oblique and horizontal directions, occupying a wide area on the anterior margin of the menisci. These fibres intermingle with bundles of the fibrocartilage of the menisci. In the area of the lateral attachment the inferior lateral genicular artery passes anteriorly to the transverse ligament, giving off numerous branches to the ligament. The medial part of the transverse ligament presents a thick rounded structure, surrounded by loose connective tissue. The fibres are arranged irregularly in bundles running horizontally on a tortuous course and with single spindle-like cells with darkly stained nuclei. The cells are not found at the ends of the ligament. Numerous blood vessels are observed between the bundles of fibres and on the periphery of the ligament.

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Zatorfienie i zasoby wodne zloz torfowych dorzecza Noteci

81%

Lipka K., Pytel A., Klatka S., Kowalczyk E.

Ochrona Środowiska i Zasobów Naturalnych

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2007

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nr 31

371-375

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White communicating rami in human embryos at the end of the fifth week

81%

Bruska M., Lupicka J., Pytel A., Wozniak W.

Folia Morphologica

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2010

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tom 69

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nr 2

White communicating rami were traced in 8 human embryos of developmental stages 14 and 15 (aged 33 and 36 postovulatory days, respectively). In embryos at stage 14 the white communicating rami were found in the spinal nerves T1 to T9. In embryos at stage 15 the white communicating rami were present at the spinal cord levels T1 to L3. (Folia Morphol 2010; 69, 2: 75–77)

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Differentiation of the nuclear groups in the posterior horn of the human embryonic spinal cord

81%

Pytel A., Bruska M., Wozniak W.

Folia Morphologica

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2011

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tom 70

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nr 4

The formation of nuclear groups in the posterior horns of the human embryonic spinal cord was traced in serial sections of embryos of developmental stages 13 to 23 (32 to 56 postovulatory days). The following observations, new for the human, are presented: 1. The differentiation of the neural tube into 3 zones (germinal, mantle and marginal) is detected in the middle of the 5th week. 2. The primordia of the posterior horns are marked at stage 14 (33 days). 3. In the middle of the 7th week the nucleus proprius and substantia gelatinosa are discerned. 4. Differentiation of the nuclei within the posterior horns proceeds in the ventrodorsal and rostrocaudal gradients. (Folia Morphol 2011; 70, 4: 245–251)

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Variant attachments of the anterior horn of the medial meniscus

81%

Jakubowicz M., Ratajczak W., Pytel A.

Folia Morphologica

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2003

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tom 62

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nr 3

291-292

The purpose of this study was to analyse the occurrence of variants of anomalous insertions of the anterior horn of the medial meniscus in human knee joints. The study was carried out on 78 human lower limbs of both sexes (42 males and 36 females). Out of 78 knee joints, 10 knee joints (12.82%) presented atypical attachments of the anterior horn of the medial meniscus. In 9 cases we found that the anterior horn of the medial meniscus was attached to the transverse ligament of the knee and in 1 case it was attached to the coronary ligament. In the remaining cases the anterior horn of the medial meniscus was attached to the anterior intercondylar area of the tibia.

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Evidence that the caudal portion of the neural tube develops by cavitation of a neural cord in the caudal eminence of human embryos

80%

Pytel A., Bruska M., Wozniak W.

Folia Morphologica

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2007

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tom 66

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nr 2

The formation of the secondary neural tube was traced in serial sections of human embryos of developmental stages 13 to 17 (32–41 days after fertilisation). It was found that the secondary neural tube formation begins with cavitation of the neural cord. The minute cavities are seen in embryos at stages 13 and 15. At stages 16 and 17 the numerous cavities coalesce to form a single central canal.

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Changes in free fatty acid composition in Chlorella vulgaris at various stages of the life cycle

61%

Lodowska J., Tam I., Mazurek U., Kurkiewicz S., Pytel A., Wilczok A., Wilczok T.

Acta Biologica Cracoviensia. Series Botanica

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1997

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tom 39

The aim of the presented work was to determine and calculate the free fatty acid (FFA) total concentration at various stages of Chlorella vulgaris cells cultivated synchronously. The FFA were isolated from cells harvested at given life cycle stages by the use of the SPE method, methylated to methyl esters and analyzed qualitatively and semiquantitavely by GC/MS. The total FFA concentration decreased during the time course of cultivation, the amount of unsaturated FFA decreased, and the concentration of saturated FFA increased. The highest concentration was shown for C16:0. Statistical analysis showed that FFA at various stages of the Chlorella vulgaris life cycle may be grouped in classes which demonstrate similar changes in concentrations when observed during the whole life cycle.

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Ocena wybranych cech psychicznych klaczy polskiego konia szlachetnego półkrwi w zależności od systemu utrzymania

51%

Petrych W., Luszczynski J., Pytel A., Pieszka M., Augustyn R., Dlugosz B., Stefaniuk-Szmukier M., Podstawski Z.

Przegląd Hodowlany

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2017

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tom 85

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nr 4

12

Projekt ochrony podkowca małego realizowany w ramach V Osi Priorytetowej Programu Operacyjnego Infrastruktura i Środowisko

51%

Szkudlarek R., Wegiel J., Wegiel A., Bator A., Iwaniuk L., Paszkiewicz R., Ploskon L., Pytel A.

Studia i Materiały Centrum Edukacji Przyrodniczo-Leśnej

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2010

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tom 12

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nr 2[25]

Ograniczanie wyników

An innovative and environmentally safe method to manufacture high-quality iron castings for possible use as elements of agricultural machines

The problem of performance life of structural elements under the conditios of thermal fatigue

Wybrane parametry jakościowe winogron uprawianych w Polsce południowej

Transverse ligament of the knee in humans

Zatorfienie i zasoby wodne zloz torfowych dorzecza Noteci

White communicating rami in human embryos at the end of the fifth week

Differentiation of the nuclear groups in the posterior horn of the human embryonic spinal cord

Variant attachments of the anterior horn of the medial meniscus

Evidence that the caudal portion of the neural tube develops by cavitation of a neural cord in the caudal eminence of human embryos

Changes in free fatty acid composition in Chlorella vulgaris at various stages of the life cycle

Ocena wybranych cech psychicznych klaczy polskiego konia szlachetnego półkrwi w zależności od systemu utrzymania

Projekt ochrony podkowca małego realizowany w ramach V Osi Priorytetowej Programu Operacyjnego Infrastruktura i Środowisko