Autor: Dudek, W. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Fatigue testing devices in a complex load condition
Autorzy:: Dudek, A.
Papacz, W.
Powiązania:: https://bibliotekanauki.pl/articles/379235.pdf
Data publikacji:: 2019
Wydawca:: Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
Tematy:: research device
fatigue life
polymer matrix composite
complex state of load
urządzenie badawcze
trwałość zmęczeniowa
kompozyt polimerowy
złożony stan obciążeń
Opis:: Purpose: The article presents an overview of fatigue testing devices for polymer composites in a complex load condition. This paper presents physically existing devices and which are in the design phase. Also presented are own concepts of the construction of such devices. The analysis of each device was completed with a description of its advantages and disadvantages. There are various constructor approaches to the problem of fatigue testing. The choice of the device depends on the research program adopted for implementation. Design/methodology/approach: The article presents the comparative analysis of individual devices. The authors presented their own proprietary designs of machines for fatigue tests in a complex load condition. Findings: It was found that the selection of the machine should provide restoration of real working reconstruction of the tested object. Originality/value: Specialist research machines are very expensive. Knowledge about technical solutions and potential capabilities of fatigue testing machines, and about the availability of such devices, allows for the best adjustment of the research program and the optimization of their costs. For designers of new machines, the submitted compendium of solutions may provide inspiration for improvements in the own constructions of subsequent generations of such devices.
Źródło:: Archives of Materials Science and Engineering; 2019, 95, 1; 20-30
1897-2764
Pojawia się w:: Archives of Materials Science and Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Immunohistochemical characterization of neurons in the vestibular ganglion (Scarpa’s ganglion) of the pig
Autorzy:: Dudek, A.
Sienkiewicz, W.
Kaleczyc, J.
Powiązania:: https://bibliotekanauki.pl/articles/31779.pdf
Data publikacji:: 2012
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: immunohistochemistry
neuron
vestibular ganglion
pig
Scarpa’s ganglion zob.vestibular ganglion
nerve fibre
Opis:: The study was carried out on three 4-month old female pigs. All the animals were deeply anesthetized and transcardially perfused with 4% buffered paraformaldehyde (pH 7.4). Vestibular ganglia (VG) were collected and processed for double-labelling immunofluorescence method. The preparations were examined under the Zeiss LSM 710 confocal microscope equipped with adequate filter blocks. Neurons forming VG were round or oval in shape with a round nucleus in the center. The majority of them (58%) were medium (M) (31-50 μm in diameter) while 28 % and 14% were small (S) (up to 30 μm in diameter) or large (L) (above 50 μm in diameter) in size, respectively. Double-labeling immunofluorescence revealed that VG neurons stained for CGRP (approx. 81%; among them 70.5%, 26.2% and 3.3% were M, S and L in size, respectively), VACHT (57%; 63% M, 24% S, 13% L), Met-Enk (25%; 60% M, 12% S, 28% L), VIP (20%; 88% M, 6% S, L), NPY (15%; 67% M, 20% S, 13% L), GAL (15%; 74% M, 21% S, 5% L), SP (12%; 69% M, 25% S, 6% L) and NOS-positive (12%; 50% S, 50% M). The most abundant populations of intraganglionic nerve fibers were those which stained for CGRP or Met-Enk, whereas only single SP- or NOS-positive nerve terminals were observed.
Źródło:: Polish Journal of Veterinary Sciences; 2012, 15, 3
1505-1773
Pojawia się w:: Polish Journal of Veterinary Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Immunohistochemical properties of motoneurons supplying the trapezius muscle in the rat
Autorzy:: Dudek, A.
Sienkiewicz, W.
Marczak, M.
Kaleczyc, J.
Powiązania:: https://bibliotekanauki.pl/articles/30477.pdf
Data publikacji:: 2011
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: immunohistochemical property
motoneuron
trapezius muscle
rat
tracing
immunohistochemistry
Opis:: Combined retrograde tracing (using fluorescent tracer Fast blue) and double-labelling immunofluorescence were used to study the distribution and immunohistochemical characteristics of neurons projecting to the trapezius muscle in mature male rats (n=9). As revealed by retrograde tracing, Fast blue-positive (FB+) neurons were located within the ambiguous nucleus and accessory nucleus of the grey matter of the spinal cord. Immunohistochemistry revealed that nearly all the neurons were cholinergic in nature [choline acetyltransferase (ChAT)-positive]. Retrogradely labelled neurons displayed also immunoreactivities to calcitonin gene-related peptide (CGRP; approximately 60% of FB+ neurons), nitric oxide synthase (NOS; 50%), substance P (SP; 35%), Leu5-Enkephalin (LEnk; 10%) and vasoactive intestinal polypeptide (VIP; 5%). The analysis of double-stained tissue sections revealed that all CGRP-, VIP- and LEnk-immunoreactive FB+ perikarya were simultaneously ChAT-positive. The vast majority of the neurons expressing SP- or NOS-immunoreactivity were also cholinergic in nature; however, solitary somata were ChAT-negative. FB+ perikarya were surrounded by numerous varicose nerve fibres (often forming basket-like structures) immunoreactive to LEnk or SP. They were also associated with some CGRP-, NOS- and neuropeptide Y-positive nerve terminals.
Źródło:: Polish Journal of Veterinary Sciences; 2011, 14, 2
1505-1773
Pojawia się w:: Polish Journal of Veterinary Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Immunohistochemical characterization of the jugular (superior vagal) ganglion in the pig
Autorzy:: Sienkiewicz, W.
Dudek, A.
Zacharko-Siembida, A.
Marszalek, M.
Powiązania:: https://bibliotekanauki.pl/articles/31280.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:: The study was carried out on three 4-month old female pigs. All the animals were deeply anesthetized and transcardially perfused with 4% buffered paraformaldehyde (pH 7.4). Left and right superior vagal ganglia (SVG) were collected and processed for immunofluorescence labeling method. The preparations were examined under a Zeiss LSM 710 confocal microscope equipped with adequate filter block. Neurons forming SVG were round or oval in shape with a round nucleus in the center. The majority of them (52%) were medium (M) (31-50 μm in diameter) while 7% and 41% were small (S) (up to 30μm in diameter) or large (L) (above 50 μm in diameter) in size, respectively. Double-labeling immunofluorescence revealed that SVG neurons stained for CGRP (approx. 57%; among them 37%, 9% and 54% were M, S and L in size, respectively), SP (14.5%; 72.4% M, 3.4% S, 24.2% L), VACHT (26%; 63% M, 24% S and 13% L ), GAL (14%; 57% M, 29% S, 14% L), NPY (12%; 53% M, 12% S, 35% L), Met-Enk (5%; 40% M, 6% S and 54% L), PACAP (15%; 52% M, 24% S and 24% L),VIP (6.3%; 67% M, 8% S and 25% L), and NOS-positive (6%; 31% M and 69% L). The most abundant populations of intraganglionic nerve fibers were those which stained for CGRP or GAL, whereas only single SP-, PACAP- or Met-ENK-positive nerve terminals were observed.
Źródło:: Polish Journal of Veterinary Sciences; 2017, 20, 2
1505-1773
Pojawia się w:: Polish Journal of Veterinary Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Caudal mesenteric ganglion in the sheep-macroanatomical and immunohistochemical study
Autorzy:: Sienkiewicz, W.
Chroszcz, A.
Dudek, A.
Janeczek, M.
Kaleczyc, J.
Powiązania:: https://bibliotekanauki.pl/articles/31932.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:: The caudal mesenteric ganglion (CaMG) is a prevetrebral ganglion which provides innervation to a number of organs in the abdominal and pelvic cavity. The morphology of CaMG and the chemical coding of neurones in this ganglion have been described in humans and many animal species, but data on this topic in the sheep are entirely lacking. This prompted us to undertake a study to determine the localization and morphology of sheep CaMG as well as immunohistochemical properties of its neurons. The study was carried out on 8 adult sheep, weighing from 40 to 60 kg each. The sheep were deeply anaesthetised and transcardially perfused with 4% paraformaldehyde. CaMG-s were exposed and their location was determined. Macroanatomical observations have revealed that the ovine CaMG is located at the level of last two lumbar (L5 or L6) and the first sacral (S1) vertebrae. The ganglion represents an unpaired structure composed of several, sequentially arranged aggregates of neurons. Immunohistochemical investigations revealed that nearly all (99.5%) the neurons were DßH-IR and were richly supplied by VACHT-IR nerve terminals forming „basket-like" structures around the perikarya. VACHT-IR neurones were not determined. Many neurons (55%) contained immunoreactivity to NPY, some of them (10%) stained for Met-ENK and solitary nerve cells were GAL-positive. CGRP-IR nerve fibres were numerous and a large number of them simultaneously expressed immunoreactivity to SP. Single, weakly stained neurones were SP-IR and only very few nerve cells weakly stained for VIP.
Źródło:: Polish Journal of Veterinary Sciences; 2015, 18, 2
1505-1773
Pojawia się w:: Polish Journal of Veterinary Sciences
Dostawca treści:: Biblioteka Nauki

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