Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Jaakko Keränen"'
Publikováno v:
Pediatrics. 117:e760-e768
OBJECTIVE. Rectal bleeding is an alarming symptom and requires additional investigation. In infants it has been explained mainly by hypersensitivity. In addition to dietary antigens, intraluminal microbial agents challenge the immature gut mucosa. Al
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::58ff38fa67bf4f0d902ab03bfcd17945
https://doi.org/10.1542/peds.2005-1069
https://doi.org/10.1542/peds.2005-1069
Autor:
Jaakko Keränen, Vesa Saikko
Publikováno v:
Scopus-Elsevier
The wear of a state-of-the-art implant alumina against itself was studied with a circularly translating pin-on-disk (CTPOD) device, a wear simulator for prosthetic hip joint materials. The direction of sliding changed continually relative to the pin,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9a011b265c63ce73fa5da755824fb7ba
https://doi.org/10.1111/j.1151-2916.2002.tb00529.x
https://doi.org/10.1111/j.1151-2916.2002.tb00529.x
Publikováno v:
Journal of Biomedical Materials Research Part B: Applied Biomaterials. :141-148
Prosthetic joints appear to show a strong relationship between the type of relative motion and wear, requiring careful consideration in the design of wear simulators. This relationship was studied with a 12-station pin-on-disk device, specifically ad
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::92c95be03c90b2a8a4549bf89be07935
https://doi.org/10.1002/jbm.b.20043
https://doi.org/10.1002/jbm.b.20043
Autor:
Pekka Halonen, J. Nevalainen, Matti U.K. Lehto, Jaakko Keränen, K. A. Juhola, Timo Puolakka, Vesa Saikko, Markku Järvinen, K. J. J. Pajamäki
Publikováno v:
Scopus-Elsevier
We analyzed 20 retrieved gamma-sterilized polyethylene liners (Biomet Hexloc). The long-term durability varied significantly depending on shelf-life time before implantation. Liners with a shelf-life time of 3 years or more evinced significantly (P 0
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::95fe5fbc73bcc869fd82cbbe67dc26ff
https://doi.org/10.1007/s00264-003-0454-9
https://doi.org/10.1007/s00264-003-0454-9
Publikováno v:
Journal of Biomedical Materials Research Part B: Applied Biomaterials. :186-192
The most commonly used wear test device for prosthetic hip joints is the so-called biaxial rocking motion (BRM) design. The design has been criticized for its excessive sliding distance per cycle. The design was modified so that the extent of motion
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::91970113f82c7099cc64f3821e11fb7b
https://doi.org/10.1002/jbm.b.10556
https://doi.org/10.1002/jbm.b.10556
Publikováno v:
Journal of Biomedical Materials Research. 63:848-853
The wear of acetabular cups made from conventional γ-sterilized, and electron-beam cross-linked ultra-high-molecular-weight polyethylene was studied with a biaxial hip wear simulator. The femoral heads were either polished or roughened so that they
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d27622fa1ffda61b4812024ed69bbb49
https://doi.org/10.1002/jbm.10471
https://doi.org/10.1002/jbm.10471
Autor:
Patrik Schmuki, Jaakko Keränen, Sannakaisa Virtanen, Tapio Mäntylä, H. Böhni, T. Stenberg, M. Büchler, Petri Vuoristo
Publikováno v:
Vacuum. 52:477-483
Several Fe–Cr-oxide films containing 10, 20, 50 or 90 wt% of Cr 2 O 3 were r.f. sputter deposited. These films were made to study the basic corrosion mechanisms of iron chromium alloys and especially the role of the chromium in enhancing the passiv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2818d26648f34d01849d1ff345358d9d
https://doi.org/10.1016/s0042-207x(98)00333-9
https://doi.org/10.1016/s0042-207x(98)00333-9
Autor:
Sannakaisa Virtanen, Patrik Schmuki, Tapio Mäntylä, Jaakko Keränen, T. Stenberg, H. Böhni, M. Büchler, Petri Vuoristo
Publikováno v:
Tampere University
Scopus-Elsevier
Scopus-Elsevier
Iron oxide films were r.f.-sputtered on metallic, ceramic and polymeric substrates in order to study the structure, composition and the photo-electrochemical properties of the coatings. The formed iron oxide phase was found to depend on the substrate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6cac5959c297fa0084b18569825470a1
https://doi.org/10.1016/s0040-6090(97)00336-2
https://doi.org/10.1016/s0040-6090(97)00336-2
Publikováno v:
Surface and Coatings Technology. 82:29-37
Detonation gun-sprayed cermet coatings containing complex ternary transition metal borides as hard particles dispersed in a stainless steel or nickel-based superalloy matrix have been characterized to ascertain the effects of crystallinity and distri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fbda148737c0a4ee2d098d6f9933a033
https://doi.org/10.1016/0257-8972(95)02539-1
https://doi.org/10.1016/0257-8972(95)02539-1
Publikováno v:
Tangible and Embedded Interaction
Location-based services are increasingly popular, and the Earth has become covered with geotagged data. To assess a novel approach to access this information, we conducted a field trial of a mobile mixed reality application called MAA, which operates
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1d9b63e3256446aae25d5d2cb023e555
https://doi.org/10.1145/2148131.2148192
https://doi.org/10.1145/2148131.2148192