40 research outputs found
Dealing with Noise and Vibration in Automotive Industry
No full textAbstractThe present day automotive industry looks for every option to attract the customers with products which will be generating lower noise, consume lesser fuel but also be equally powerful. This unique requirement drives the motivation for building each and every aspect of a dynamical system to be represented in the math model. The product should be durable, less noisy, powerful, as well as elegant. The most challenging factor among these requirements is system noise and vibration, because better comfort means less noisy as perceived by the customers. Few years before almost all the major automotive industry were relaying with FEM and BEM based approach for building the model for addressing low and mid frequency issues (up to 3000Hz). The aim of this paper is to provide a review of literature on the analysis techniques and validation methods used to address NVH issue in power-train systems, and also it covers the analysis procedures on present and future trend
Robust extended complex Kalman Filter applied to distorted power system signals for frequency estimation
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Microscopic study of a solid insulating material after breakdown under DC and AC voltages
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Voltage stability analysis in a multimachine multibus system using thyristor controlled series capacitor(TCSC)
No full textPerceptions and practices of various maternal and child health services: a study among women of reproductive age group in a costal block of Ganjam District, Odisha
No full textBackground: “Healthy mothers - Healthy children” and “children’s health - tomorrows health”. Any intervention which should be planned towards the upliftment of health status of this group must start with gathering information about their present status especially in the underprivileged section. This study was conducted with an objective to assess perceptions and practices of various Maternal and Health services in the study group.Methods: An observational, cross-sectional study was conducted among women in reproductive age group residing in villages of a coastal block with a predesigned and pretested questionnaire.Results: Among the study population 54.7% women were in the 25-34 years age group, majority (46.7%) were illiterate and one-fourth of the study population age at marriage was below 18 years. Though 90.7% of study population were aware of the ongoing contraceptive practises only 37.4% of the respondents accepted some or other contraceptive methods. Fear of side effects (35.4%) found to be the chief reasons for unwillingness for adopting contraception. Majority (90.2%) responded that pregnant women need to go for ANC but only 51.9% knew correctly about minimum number of ANC. Women having adequate knowledge on ANC was found to be significantly associated with their educational status and age at marriage. Among PNC mothers 57.6% had completed the requisite no. of ANC and only 30% of respondents had completed the course of iron and folic acid tablet during their last pregnancy.Conclusions: The literacy status of the study population has to be improved which will lead to demand generation and utilization of the health and other services provided by the Government.</jats:p
