Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • 1985-1989  (3)
Material
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 64 (1988), S. 1671-1678 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We have studied the structure and optical stability of Te–Cu thin film alloy candidates for write-once optical recording. Films prepared by rf diode sputtering with 20–50 at. % Cu are amorphous, as-sputtered. One of these, Te65 Cu35 , has a relatively high crystallization temperature (150 °C), as determined by x-ray diffraction. Near the eutectic composition (∼29 at .% Cu), alloy films have stable optical properties after accelerated aging at 60 °C and 85% relative humidity. The mechanism for film stability near the eutectic was studied by x-ray photoelectron spectroscopy and depth profiling using ion scattering spectroscopy. We found that a Cu-enriched surface oxide, formed at ambient conditions, passivates the film and is responsible for its subsequent stability after accelerated aging. We also demonstrated that a 14 in. diam, multilayer optical disk with a Te65 Cu35 recording medium exhibits excellent linearity for 3 and 8 MHz pulses, good written pulse length stability, and high signal-to-noise ratio. Thus, a Te–Cu recording medium can effectively use run-length-limited codes, which allow very high data storage capacity and data transfer rates.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Langmuir 1 (1985), S. 166-169 
    ISSN: 1520-5827
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 3
    Electronic Resource
    Electronic Resource
    Springer
    International orthopaedics 8 (1985), S. 239-242 
    ISSN: 1432-5195
    Keywords: Knee ; Tendons ; Patellar tendon ; Sports injuries
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Nous avons revu les observations et les résultats du traitement, conservateur ou chirurgical, de 125 — sur 172 — «genoux de sauteurs», suivis au moins 2 ans après l'apparition des troubles. Tous ces cas concernaient des athlètes exerçant des activités sportives diverses. Au moment de la révision, 15 d'entre eux avaient abandonné le sport et leurs lésions avaient guéri spontanément. Nous avons utilisé la classification de Blazina et coll. modifiée par Roels et coll. 24 malades appartenaient au stade 1, 42 au stade 2, 43 au stad 3 et 1 au stade 4. Chez tous les malades on a eu recours en premier lieu au traitement conservateur, sauf dans les ruptures tendineuses. Les résultats ont été très bons dans 42 cas, bons dans 32 et mauvais dans 43 mais 36 malades ont dû observer une longue période de repos et réduire leurs activités sportives avant de bénéficier d'une amélioration notable de leur état. Une intervention chirurgicale a été réalisée chez 16 malades (19 genoux), 18 étaient de stade 3 et 1 du stade 4. Diverses techniques chirurgicales ont été utilisées. Les résultats ont été très bons sur 7 genoux, bons sur 5 et mauvais sur 7. L'opération est indiquée en cas d'échec du traitement conservateur et chez les sujets qui ne veulent pas réduire le niveau de leurs activités sportives. Le but du traitement est d'obtenir la guérison au niveau de l'insertion osseuse des tendons. Nous insistons sur l'importance de la prévention du «genou de sauteur» chez les athlètes.
    Notes: Summary We have reviewed the clinical records and the results of conservative and surgical treatment of 125 out of 172 cases of Jumper's Knee followed for at least 2 years since the onset of symptoms. All were athletes involved in various sporting activities. At follow up 15 patients had given up sport and the lesion had healed spontaneously. We used the classification of Blazina et al [1] as modified by Roels et al. [12]. Twenty-four patients were in stage 1, 42 in stage 2, 43 in stage 3 and one in stage 4. Conservative treatment was used primarily on all patients with one exception where the tendon had ruptured. The results were very good in 42, good in 32, and poor in 43, but in 36 patients a long period of rest and reduction in sporting activity was necessary before a significant improvement was obtained. Operation was carried out on 16 patients (19 knees), 18 were in stage 3 and one in stage 4. Various surgical techniques were used. The results were very good in 7 knees, good in 5 and poor in 7. Operation is indicated after the failure of conservative measures and in patients who do not want to reduce their sporting level. The aim should be to induce healing at the bone tendon junction. We emphasize the importance of the prevention of jumper's knee in athletes.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...