A sequential diagnosis method is proposed based on a fuzzy neural network realized by'the partially-lineatized neural network(PNN)',by which the fault types of rotating machinery can be precisely and effective...A sequential diagnosis method is proposed based on a fuzzy neural network realized by'the partially-lineatized neural network(PNN)',by which the fault types of rotating machinery can be precisely and effectively distinguished at an early stage on the basis of the possibilities of symptom parameters.The non-dimensional symptom parameters in time domain are defined for reflecting the features of time signals measured for the fault diagnosis of rotating machinery.The synthetic detection index is also proposed to evaluate the sensitivity of non-dimensional symptom parameters for detecting faults.The practical example of condition diagnosis for detecting and distinguishing fault states of a centrifugal pump system,such as cavitation,impeller eccentricity which often occur in a centrifugal pump system,are shown to verify the efficiency of the method proposed in this paper.展开更多
The purpose of this survey was to investigate depressive symptoms in cancer patients and the differences based on gender, quality of life and social support. Sixty-eight patients diagnosed with cancer participated in ...The purpose of this survey was to investigate depressive symptoms in cancer patients and the differences based on gender, quality of life and social support. Sixty-eight patients diagnosed with cancer participated in the research, with ages varying between 25 and 83 years (A = 55.4;SD = 13.3) and 85.3% were female. The instruments used were Identification Questionnaire, Perceived Social Support Scale—adult version (EPSUS-A), Medical Outcomes Short-Form Health Survey (SF-36) and the Baptista Depression Scale Hospital—clinic version (EBADEP-HOSP-AMB). It was verified that most of the patients reported not having depression diagnosis before the cancer, nor in the current moment, besides not using anti-depressive medication. The scores obtained in the EBADEP-HOSP-AMB suggest light depressive symptoms. It is concluded that the depressive symptoms were mostly presented in women, in patients with worse mental health condition and in those less satisfied with the social support.展开更多
基金Sci-Tech Planning Projects of Chongqing City,China(No.CSTC2007AA7003).
文摘A sequential diagnosis method is proposed based on a fuzzy neural network realized by'the partially-lineatized neural network(PNN)',by which the fault types of rotating machinery can be precisely and effectively distinguished at an early stage on the basis of the possibilities of symptom parameters.The non-dimensional symptom parameters in time domain are defined for reflecting the features of time signals measured for the fault diagnosis of rotating machinery.The synthetic detection index is also proposed to evaluate the sensitivity of non-dimensional symptom parameters for detecting faults.The practical example of condition diagnosis for detecting and distinguishing fault states of a centrifugal pump system,such as cavitation,impeller eccentricity which often occur in a centrifugal pump system,are shown to verify the efficiency of the method proposed in this paper.
文摘The purpose of this survey was to investigate depressive symptoms in cancer patients and the differences based on gender, quality of life and social support. Sixty-eight patients diagnosed with cancer participated in the research, with ages varying between 25 and 83 years (A = 55.4;SD = 13.3) and 85.3% were female. The instruments used were Identification Questionnaire, Perceived Social Support Scale—adult version (EPSUS-A), Medical Outcomes Short-Form Health Survey (SF-36) and the Baptista Depression Scale Hospital—clinic version (EBADEP-HOSP-AMB). It was verified that most of the patients reported not having depression diagnosis before the cancer, nor in the current moment, besides not using anti-depressive medication. The scores obtained in the EBADEP-HOSP-AMB suggest light depressive symptoms. It is concluded that the depressive symptoms were mostly presented in women, in patients with worse mental health condition and in those less satisfied with the social support.
