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Wyświetlanie 1-4 z 4
Tytuł:
Condition of populations of the snails of the genus Partula and problems of their ex situ protection
Autorzy:
Cwiertnia, P.
Jozefowicz, A.
Urbanska, M.
Powiązania:
https://bibliotekanauki.pl/articles/83959.pdf
Data publikacji:
2010
Wydawca:
Uniwersytet Mikołaja Kopernika. Wydział Biologii i Ochrony Środowiska. Stowarzyszenie Malakologów Polskich
Źródło:
Folia Malacologica; 2010, 18, 3
1506-7629
Pojawia się w:
Folia Malacologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Selected applications of the 3-D printing technology
Autorzy:
Garbarczyk, E.
Józefowicz, K.
Rybarczyk, A.
Powiązania:
https://bibliotekanauki.pl/articles/97612.pdf
Data publikacji:
2014
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
FDM 3D printer
extruder
rapid prototyping
filament
Opis:
The spatial FDM Technology printing enables illustrating a great number of technical issues by creating a model of the analyzed object e.g. directly, during didactic classes. A three-dimensional printer may be used in any field of knowledge, from biology, where the printer can be employed for printing the models of organs (printing of the organs themselves is also possible following the modification of the printer - when printing with TAULMAN Nylon filament, we can print e.g. the elements of bones or cartilages which may be implanted into a living organism) to printing spare parts and prototype elements for equipment, in architecture for printing complex scale models etc. The printer itself is a fantastic device, interesting for many fields of study. The 3D printer will enable students to learn how to program the processors based on ATMega, may prepare new software controlling the printer, design 3D graphics on computers, edit “scans” and files downloaded from the Internet, use the CAD software in practice and print the results acquired on the sets of printers. Moreover, each printer may be freely modified according to our own needs - from the change or transfer of the drive to replaceable extruders - the mechanisms forcing materials. The printer may also be changed into a laser plotter or even a milling machine following a slight modification of the extruder’s carriage or changing force belts into ball screws [1-4].
Źródło:
Computer Applications in Electrical Engineering; 2014, 12; 444-451
1508-4248
Pojawia się w:
Computer Applications in Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Vestibular system dysfunction in patients after mild traumatic brain injury
Autorzy:
Skóra, W.
Stańczyk, R.
Pajor, A.
Jozefowicz-Korczyńska, M.
Powiązania:
https://bibliotekanauki.pl/articles/2081936.pdf
Data publikacji:
2018
Wydawca:
Instytut Medycyny Wsi
Tematy:
vertigo
dizziness
mild traumatic brain injury
disequilibrium
Opis:
Introduction. In the literature there are some discrepancies concerning the occurrence of vertigo and disequilibrium, as well as the type of vestibular dysfunction in patients after mild traumatic brain injury (MTBI). Objective. The aim of the study was to assess the type of vestibular system dysfunction in MTBI patients after injury at baseline and 6-month follow-up. Materials and method. From a group of 188 patients with vertigo/dizziness and balance instability after MTBI, prospective analysis in 50 patients with abnormal videonystagmography (VNG) were conducted. Anamnesis, otoneurological examination, self-assessed Dizziness Handicap Inventory (DHI) and VNG test were carried in each patient twice – at baseline and after 6 months. Results. A significant improvement in the DHI total score (9.8 points, p<0.001) and in the subscales was found after 6 months. At baseline, VNG test showed the peripheral vestibular system dysfunction in 19 cases (38%), central vestibular dysfunction in 20 patients (40%) and mixed vestibular dysfunction in 11 cases (44%). After 6 months, the VNG records normalization was observed in 19 patients (38%), an improvement was significantly more frequently related to peripheral disorders, compared to central ones (p<0.001). Conclusions. In patients after mild traumatic brain injury, about one-fourth of them had vestibular system dysfunction with the same frequency of peripheral, central and mixed lesions in videonystagmography. Subjective post-traumatic symptoms and vestibular system dysfunction in patients after MTBI decrease after 6-month follow-up. However, more than half of patients still have abnormal VNG results, which indicate dysfunction of the central vestibular system.
Źródło:
Annals of Agricultural and Environmental Medicine; 2018, 25, 4; 665-668
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Brillouin Zone Mapping of the Existence Conditions for Interface Bilayer Spin-Waves. Effects of the Configuration of the Film Magnetization
Autorzy:
Puszkarski, H.
Józefowicz, R.
Kołodziejczak, B.
Akjouj, A.
Djafari-Rouhani, B.
Dobrzynski, L.
Powiązania:
https://bibliotekanauki.pl/articles/1945427.pdf
Data publikacji:
1996-05
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
75.30.Ds
75.70.Cn
Opis:
For the two interface cubic cuts: sc(110) and sc(111) we consider the existence regions of interface spin-waves of a ferromagnetic bilayer film on the two-dimensional Brillouin zone as to their size and shape versus the respective interface related parameters (interface exchange coupling and intrinsic interface anisotropy) applying the approximation of a very thick bilayer film and the method of Brillouin zone mapping (the three (100) interface cubic orientations have been dealt with earlier [Phys. Rev. B 51, 16008 (1995)]). Of particular interest to us still remains the emergence of interface spin-waves induced by varying dynamic quantities such as the in-plane propagation wave vector k$\text{}_{∥}$. Moreover, in our present investigation, we put especial emphasis on the effect exerted on the Brillouin zone mapping by varying (in the plane perpendicular to the film) the configuration angle of the film magnetization with respect to the film normal. We predict the existence of (at the most two) critical angles $\text{}_{c}$ at which the interface spin-waves emerge. These critical angles are functions of the in-plane wave vector k$\text{}_{∥}$ of interface spin-wave propagation along the interface. Finally, we discuss the effects due to the presence of critical angles with a view to their exploitation in experimental measurements.
Źródło:
Acta Physica Polonica A; 1996, 89, 5-6; 675-688
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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