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AN EXPERIMENTAL AND STATISTICAL INVESTIGATION OF SURFACE FATIGUE CRACK INITIATION AND GROWTH (1985)

Ochi, Y. ; Ishii, A. ; Sasaki, S. K.

Oxford, UK : Blackwell Publishing Ltd

Fatigue & fracture of engineering materials & structures 8 (1985), S. 0

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ISSN: 1460-2695

Source: Blackwell Publishing Journal Backfiles 1879-2005

Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics

Notes: Surface fatigue crack studies were carried out and statistically analysed from rotating bend fatigue tests in the high cycle region for three metals, copper, stainless steel and mild steel with four ferrite grain sizes. Quantitative observations of the initiation and growth behavior, including coalescence of closely spaced cracks, are discussed and a limiting condition for coalescence is proposed. Statistical properties of initiation, propagation and propagation rate of surface cracks are examined and the effect of different metals and grain sizes is discussed.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1111/j.1460-2695.1985.tb00431.x

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Immunohistochemical analysis of spinal intradural xanthomatosis developed in a patient with phytosterolemia (1992)

Okabe, H. ; Ishizawa, M. ; Matsumoto, K. ; [et al.]

Springer

Acta neuropathologica 83 (1992), S. 554-558

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ISSN: 1432-0533

Keywords: Phytosterolemia ; Intradural xanthomatosis ; Denticulate ligaments ; Macrophage ; Immunohistochemistry

Source: Springer Online Journal Archives 1860-2000

Topics: Medicine

Notes: Summary Multiple intradural xanthomatous tumors developed in 48-year-old female with familial phytosterolemia. These tumors were restricted to the spinal denticulate ligaments. Histological and immunohistocheimical findings were fundamentally similar to those of tendinous xanthomas. The major cellular component of these tumors were identified as of mono-histiocytic origin because they possessed myeloid histiocytic antigen (Mac 387), CD11c and lysozyme but not CD15. Sitosterols, campesterols and cholestanols were recovered from the extract of the tumors and the lesions were confirmed to be phytosterolemic xanthomas. Schwann cells stained with anti-S100 protein were confined to the perivascular small nerve bundles and did not show xanthomatous change. Although immunohistochemical preparation of epithelial membrane antigen and desmoplakin I+II revealed the presence of non-neoplastic meningothelial cells in the superficial portion of the tumors, they were too few to play a significant role in the development of these xanthomas.