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Wyświetlanie 1-4 z 4
Tytuł:
The Verification of the Technical Conditions of a Combat-Trainer Jet’s Airframe
Autorzy:
Kurdelski, M.
Stefaniuk, M.
Zieliński, W.
Bartoszek, T.
Powiązania:
https://bibliotekanauki.pl/articles/97998.pdf
Data publikacji:
2015
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Lotnictwa
Tematy:
ageing fleet
extension of service life
deformation analysis
Opis:
The combat-trainer jet aircraft is an important element in the process of fighter pilot training. This type of aircraft provides a means of transition from basic training on low-speed propeller trainers to piloting high-speed and highly maneuverable fighter aircraft. Nowadays, in Poland, the PZL TS-11 “ISKRA” jet trainers, designed in 1960s, are employed for training purposes. Because of financial considerations this trainer hasn’t been yet replaced by modern aircraft that conforms to current specifications and needs. As is the case with other aircraft in service of the PLAF, the TS-11 fleet has a large reserve of remaining Hourly Service Life (HSL). This opens an opportunity to extend the Calendar Service Life (CSL), so as it matches the HSL. To this end, a series of technical and research activities needed to be undertaken. The Air Force Institute of Technology is conducting the necessary verification of airframe structural conditions in cooperation with the Military Aviation Works No. 1 J.S.C. (branch in Dęblin) responsible for the overhaul and repair operations. The AFIT’s activities in this program include:
• deformation analysis of the selected surface areas of the wing and the fuselage;
• assessment of hidden corrosion in riveted joints;
• non-destructive testing of selected riveted joints.
This paper describes the deformation analysis. As of today, the first stage of the deformation inspection has been completed. At this stage, baseline surface measurements were obtained. Further inspections shall be performed cyclically. The future measurements will be used to establish the areas that deform due to the aircraft operation.
Źródło:
Fatigue of Aircraft Structures; 2015, 7; 34-40
2081-7738
2300-7591
Pojawia się w:
Fatigue of Aircraft Structures
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Semiautonomy and teleoperation modes of mobile robot IBIS — simulation and implementation
Autorzy:
Bigaj, P.
Trojnacki, M. T.
Bartoszek, J.
Powiązania:
https://bibliotekanauki.pl/articles/115668.pdf
Data publikacji:
2010
Wydawca:
Fundacja na Rzecz Młodych Naukowców
Tematy:
autonomous mobile robot
VFH
AMR
semiautonomy
Opis:
The work is concerned on the simulation and implementation of teleoperation and semiautonomy modes of IBIS mobile robot. A description of robot construction, used sensors as well as the algorithm for semiautonomy mode of operations is introduced. Simulation environment and experiment with Matlab/Simulink package with Simulink 3D Animation toolbox is discussed. In addition, an experiment on real target/robot and its results are presented as the scope of work.
Źródło:
Challenges of Modern Technology; 2010, 1, 1; 48-55
2082-2863
2353-4419
Pojawia się w:
Challenges of Modern Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Serum amyloid A protein (SAA), haptoglobin (Hp) and selected hematological and biochemical parameters in wild mares before and after parturition
Autorzy:
Krakowski, L.
Bartoszek, P.
Krakowska, I.
Olcha, P.
Piech, T.
Stachurska, A.
Brodzki, P.
Powiązania:
https://bibliotekanauki.pl/articles/30266.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
The aim of the study was to evaluate physiological changes in hematological and biochemical parameters in mares in perinatal period. Blood samples were collected from 24 pregnant Polish Konik breed mares which were divided into two groups. The first group (Group – I, n=12) comprised mares living in the wild, in the reserve. The second group (Group – II, n=12) consisted of mares kept in stables. The blood was collected 2 weeks prior to the parturition, then 24 hours after the delivery, and then at the 7th and 21st day after foaling. When comparing the two groups before the parturition, no significant differences in terms of WBC, RBC, and Hb were found, however, there was a significant difference in MCV, MCH, LYM, NEU and SEG NEU (p≤0.05). In Group II, 24 hours after the parturition and at the 21st day after foaling, a significant raise in WBC, NEU and SEG NEU (p≤0.05) was detected. No significant differences in serum concentrations of proteins such as TP, Alb or Glb were observed. As to acute phase proteins, significant rise in SAA and Hp (p≤0.05) was found in the two examined groups 24 hours after the parturition. Yet, this rise remained within physiological range. The study revealed a certain degree of fluctuations in hematological parameters, in serum concentrations of acute-phase proteins and total proteins in the mares in the perinatal period. However, these changes remained still within physiological ranges and thus they do not indicate potential susceptibility to disorders of perinatal period.
Źródło:
Polish Journal of Veterinary Sciences; 2017, 20, 2
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Level of vitamin 25 (OH) D and B group vitamins and functional efficiency among the chronically ill elderly in domiciliary care - a pilot study
Autorzy:
Kocka, K.H.
Ślusarska, B.J.
Nowicki, G.J.
Bartoszek, A.B.
Rudnicka-Drożak, E.A.
Panasiuk, L.
Kocki, T.
Powiązania:
https://bibliotekanauki.pl/articles/2085032.pdf
Data publikacji:
2019
Wydawca:
Instytut Medycyny Wsi
Tematy:
vitamin D3
vitamin B12
folic acid
elderly
long-term home care
Opis:
Introduction and objective. Deficits of vitamin resources constitute a significant public health problem, especially among the elderly population. The aim of the research was to determine the level of vitamin 25 (OH) D and vitamins from group B in the chronically ill elderly in domiciliary care, depending on functional capacity and coexisting diseases. Materials and method. The pilot study included 137 patients staying in long-term domiciliary care. Samples of the participants’ venous blood was obtained for laboratory tests. Centrifuged serum was used to determine the level of the following biochemical parameters: vitamin 25 (OH)D, B12, folic acid and total protein, albumin, triglycerides, total cholesterol and HDL cholesterol. Assessment of the functional status of patients was made by using the Barthel scale. Results. More than 3⁄4 of the patients with functional deficit (according to Barthel’s score 0–85 points) were deficient in vitamin 25 (OH)D, while folic acid values were below the reference values in more than half of the patients. Respondents with lower functional efficiency were characterised by a reduced average value of vitamin 25 (OH)D and folic acid. Conclusions. The studied group of the chronically ill elderly was characterised by a deficiency of vitamin D3 and folic acid. Subjects with a functional impairment deficit show a reduced mean value of vitamin 25 (OH)D and folic acid in the blood serum, compared to the group of patients with higher mobility.
Źródło:
Annals of Agricultural and Environmental Medicine; 2019, 26, 3; 489-495
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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