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High speed gearless and compact motors rotating at speeds above 10000 rpm are finding many applications nowadays. Design of the high speed motor is indeed a technological challenge. This paper presents novel design and analysis of a coreless axial flux permanent magnet motor for high speed, low power application. The proposed motor is designed to rotate at a speed of 30000 rpm. To achieve high reliability...
High speed motors rotating at speeds above 10,000 rpm are gaining more attention nowadays for various high performance applications. High efficiency and reliability are demanded by the applications like centrifugal compressors, pumps, machine tools, drills, aerospace etc. This paper presents novel design and analysis of a high speed axial flux permanent magnet motor for high speed, low power applications...
In an attempt to develop measures for early diagnosis and prognosis of the disease and to explore association of murine mammary tumour virus (MuMTV) or related virus in breast cancer, we purified a breast tumour associated antigen (BTAA) from the breast tumour tissues of untreated female cancer patients. The BTAA purified by DEAE discontinuous column chromatography followed by SE-HPLC was an 85 kDa glycoprotein. A high level of circulating antibodies against this antigen was observed, using ELISA, in all the untreated female breast cancer patients. The BTAA was not immunologically related to MuMTV antigens but strongly resembled an 83 kDa glycoprotein tumour associated antigen, purified from MuMTV induced mouse mammary tumour. In patients after surgical removal of the breast tumour, the circulating antibodies to the BTAA decreased gradually, but reappeared in the patients with secondary metastasis. In healthy age matched women or in female patients with carcinoma of tissues other than breast, no significant titre of the BTAA antibodies was observed...
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