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Tensile strength and fracture toughness of two magnesium metal matrix composites
김기배,S. Jayalakshmi,Satish V. Kailas,S. Seshan,E. Fleury 한양대학교 세라믹연구소 2006 Journal of Ceramic Processing Research Vol.7 No.3
Metal matrix composites of two magnesium alloys (AM100 and ZC63) with saffil alumina fibre reinforcements were produced using a squeeze infiltration technique. Mechanical properties were assessed, followed by analysis of the fractured specimens. From the strength, toughness and the fractographic analysis, attempts were made to elucidate the influence of the matrix, fibre volume fraction and the fibre/matrix interface on the properties. Metal matrix composites of two magnesium alloys (AM100 and ZC63) with saffil alumina fibre reinforcements were produced using a squeeze infiltration technique. Mechanical properties were assessed, followed by analysis of the fractured specimens. From the strength, toughness and the fractographic analysis, attempts were made to elucidate the influence of the matrix, fibre volume fraction and the fibre/matrix interface on the properties.
I Do Not Even Say "It" - a Mixed Methods Study on Breast Cancer Awareness of Omani Women
Alkhasawneh, Esra,Siddiqui, Saad T,Leocadio, Michael,Seshan, Vidya,Al-Farsi, Yahya,Al-Moundhri, Mansour S Asian Pacific Journal of Cancer Prevention 2016 Asian Pacific journal of cancer prevention Vol.17 No.4
Background: The incidence of breast cancer is rising in Oman, and the disease is diagnosed at late stages, when treatment success is limited. Omani women might benefit from better awareness, so that breast cancer can be detected early and treated. This study was conducted to assess Omani women's levels of breast cancer awareness and early detection practice, and explore factors which might influence these levels. Materials and Methods: A mixed methods study was conducted in 2014, including a quantitative survey of 1,372 and a qualitative assessment of 19 Omani women, aged ${\geq}20years$ from five Omani governorates using convenient sampling. Demographic information and scores for awareness levels were used in a multivariate regression model to investigate factors associated with awareness. Thematic analysis and interpretive description were used to analyse the qualitative data. Results: The overall means for early detection and general awareness scores were 0.58 (SD 0.24) and 0.46 (SD 0.21), respectively. General awareness was significantly associated with age, education, income and familiarity with cancer patients (p<0.05), while early detection was significantly associated with age, marital status and education. A majority of women (59.5%) agreed with a belief in 'evil eye' or envy as a risk factor for breast cancer. Women discussed various factors which may empower or inhibit awareness, including the cultural-religion-fatalistic system, personal-familial-environmental system, and healthcare-political-social system. Conclusions: The overall low scores for awareness and early detection, and the survey of local beliefs highlight a severe necessity for a contextually-tailored breast cancer awareness intervention programme in Oman.