| 1. |
- Bengtsson, B., et al.
(författare)
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Laser hardening of steel
- 1984
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Ingår i: Materials Research Society Symposia Proceedings. - Amsterdam : Elsevier. - 0444009019 ; , s. 789-793
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Konferensbidrag (refereegranskat)
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| 2. |
- Malmvall, B E, et al.
(författare)
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Immune complexes, rheumatoid factors, and cellular immunological parameters in patients with giant cell arteritis
- 1981
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Ingår i: Annals of the Rheumatic Diseases. - 1468-2060. ; 40:3, s. 276-280
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Tidskriftsartikel (refereegranskat)abstract
- Circulating immune complexes were found in 2 of 15 patients with giant cell arteritis (GCA) by using a solid phase Clq enzyme linked immunoabsorbent assay (ELISA). The prevalence in controls was 5%. Rheumatoid factor could be demonstrated in 2 out of 27 patients and in 11% of the controls by using a similar ELISA technique. The prevalence of T cells in blood was similar in 25 patients with GCA and in controls. The blood lymphocyte blastogenic response to the mitogens, phytohaemagglutinin, concanavalin-A, and pokeweed mitogen did not differ in 25 untreated patients compared with controls. Stimulation of lymphocytes by arterial homogenates was tested in 8 patients. In no case could a significant simulation by obtained. We conclude that immune complexes and rheumatoid factors are present in the same low frequency in GCA patients as in the normal population, and that the studied parameters of cellular immunity appear to be normal.
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| 3. |
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| 4. |
- Navara, E., et al.
(författare)
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Fracture toughness of P/M steels
- 1984
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Ingår i: International Journal of Powder Metallurgy and Powder Technology. - 0361-3488. ; 20:1, s. 33-43
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Tidskriftsartikel (refereegranskat)abstract
- A critical review of published work on the fracture toughness of sintered materials reveals differences in their behavior when compared with homogeneous materials. Nominal values of experimental results place porous materials at a disadvantage. This comparison is questioned by a deeper analysis of some relationships between fracture toughness and porosity, temperature, and specimen size. A first approximation model of the sintered body as an aggregate of necks is proposed which derives a requirement for inherent fracture toughness. (15 refs.)
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