Wszystkie pola: orbit - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: An Impact of Technological Conditions on Surface Burning in Grinding of the Orbit
Autorzy:: Stančeková, Dana
Mrázik, Jozef
Rybicka, Iwona
Náprstková, Nataša
Kraus, Pavel
Powiązania:: https://bibliotekanauki.pl/articles/101908.pdf
Data publikacji:: 2018
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:: grinding
orbit
quality
burning
szlifowanie
orbita
jakość
palenie
Opis:: A process of quality development helps us reveal concrete deficiences, an analysis of their origin and realization of required modifications that are needed to solve a concrete problem. One of the aims of quality development of production in bearing industries is to find out an impact of tchnological conditions to form burning of surfaces in grinding of orbits of bearing rings. We try to describe an origin of the problem, to find reasons of burned surfaces in a process of grinding and to propose such technological conditions to avoid above-stated problems and to produce the least possible number of non-identical workpieces. To lower a number of burnings in grinding of the orbit to zero percentage is not real, however, we have to try to get a minimal number of parts with damaged surface.
Źródło:: Advances in Science and Technology. Research Journal; 2018, 12, 4; 19-27
2299-8624
Pojawia się w:: Advances in Science and Technology. Research Journal
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Basal cell carcinoma of the facial skin penetrating to the orbit – case report
Autorzy:: Czesak, Małgorzata
Chęciński, Piotr
Osuch-Wójcikiewicz, Ewa
Bruzgielewicz, Antoni
Sokołowski, Jacek
Niemczyk, Kazimierz
Powiązania:: https://bibliotekanauki.pl/articles/1400278.pdf
Data publikacji:: 2017
Wydawca:: Index Copernicus International
Tematy:: skin cancer
basal cell carcinoma
orbit
Opis:: Basal cell carcinoma (BCC) is the most frequent malignant neoplasm of the skin. In this report we present a case of a 59-year-old patient, who had noticed for five years gradually growing tumor of the facial skin. MR scans revealed pathological lesion in the left orbit. The patient required partial resection of the nose, orbital exenteration with anterolateral thigh free flap reconstruction. The authors present diagnostic problems and methods of treatment BCC.
Źródło:: Polski Przegląd Otorynolaryngologiczny; 2017, 6, 2; 64-69
2084-5308
2300-7338
Pojawia się w:: Polski Przegląd Otorynolaryngologiczny
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Giant osteoma of the paranasal sinuses and right orbit diagnosed using CT imaging in a patient with trauma history
Autorzy:: Kurys-Denis, E.
Zamecka, M.O.
Kruk-Bachonko, J.
Krupski, W.
Powiązania:: https://bibliotekanauki.pl/articles/3284.pdf
Data publikacji:: 2014
Wydawca:: Instytut Medycyny Wsi
Tematy:: osteoma zob.osteoblastoma
osteoblastoma
giant osteoid zob.osteoblastoma
paranasal sinus
orbit
diagnosis
computer tomography
patient
trauma patient
Źródło:: Journal of Pre-Clinical and Clinical Research; 2014, 08, 1
1898-2395
Pojawia się w:: Journal of Pre-Clinical and Clinical Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Cutting parameters and vibrations analysis of magnetic bearing spindle in milling process
Autorzy:: Bouaziz, A.
Barkallah, M.
Bouaziz, S.
Choley, J. Y.
Haddar, M.
Powiązania:: https://bibliotekanauki.pl/articles/279623.pdf
Data publikacji:: 2016
Wydawca:: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:: milling process
cutting forces
chip thickness
dynamic coefficients
orbit
Opis:: In modern production, milling is considered the widespread cutting process in the formatting field. It remains important to study this manufacturing process as it can be subject to some parasitic phenomena that can degrade surface roughness of the machined part, increase tool wear and reduce spindle life span. In fact, the best quality work piece is obtained with a suitable choice of parameters and cutting conditions. In another hand, the study of tool vibrations and the cutting force attitude is related to the study of bearings as they present an essential part in the spindle system. In this work, a modeling of a High Speed Milling (HSM) spindle supported by two pair of Active Magnetic Bearings (AMB) is presented. The spindle is modeled by Timoshenko beam finite elements where six degrees of freedom are taken into account. The rigid displacements are also introduced in the modeling. Gyroscopic and centrifugal terms are included in the general equation. The bearings reaction forces are modeled as linear functions of journal displacement and velocity in the bearing clearance. A cutting force model for peripheral milling is proposed to estimate the tool-tip dynamic responses as well as dynamic cutting forces which are also numerically investigated. The time history of response, orbit, FFT diagram at the tool-tip center and the bearings dynamic coefficients are plotted to analyze dynamic behavior of the spindle.
Źródło:: Journal of Theoretical and Applied Mechanics; 2016, 54, 3; 691-703
1429-2955
Pojawia się w:: Journal of Theoretical and Applied Mechanics
Dostawca treści:: Biblioteka Nauki

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