不笑不散

谁创造万物，借成绩单，只有我没笑，消除不和     

航空发动机构造与维护课程思政教学改革与实践

针对专业课程教学中存在的思政要素缺失、人生观和价值观培养弱化、唯物辩证法应用不足等问题,通过挖掘航空发动机构造与维护课程蕴含的思想政治教育元素,发挥课程承载的思想政治教育功能,将传授装备知识与构建价值观、培养哲学分析能力有机融合,联系工作生活经验充分发挥学员能动性,在装备学习过程中培养学员应用马克思主义哲学解决问题的能力,在解疑释惑过程中将社会主义核心价值观内化于心、外化于行,增强中国特色社会主义道路自信、理论自信、制度自信、文化自信。     

Study of engine noise based on independent component analysis

Independent component analysis was applied to analyze the acoustic signals from diesel engine. First the basic prin-ciple of independent component analysis (ICA) was reviewed. Diesel engine acoustic signal was decomposed into several inde-pendent components (ICs); Fourier transform and continuous wavelet transform (CWT) were applied to analyze the independent components. Different noise sources of the diesel engine were separated, based on the characteristics of different component in time-frequency domain.     

上海别克轿车氧传感器的工作原理及故障检测

本文从结构和控制电路出发叙述了上海别克轿车电子控制燃油喷射发动机氧传感器的工作原理，就经常发生的故障进行分析，并对每种故障的检测、排除方法做了比较详细的介绍，为准确检测、排除氧传感器的故障提供了理论依据和技术支持。