以脱贫攻坚精神锻造新时代好青年的逻辑理路

伟大事业孕育伟大精神,伟大精神引领伟大事业。脱贫攻坚伟大斗争,锻造形成了“上下同心、尽锐出战;精准务实、开拓创新;攻坚克难、不负人民”的脱贫攻坚精神。脱贫攻坚精神所蕴含的团结、科学、奋斗精神等与培育有理想、敢担当、能吃苦、肯奋斗的新时代好青年具有高度的内在契合性。以脱贫攻坚精神锻造新时代好青年,有助于青年增进政治认同、强化使命担当、厚植人民情怀、锤炼意志品质。要讲好中国脱贫故事,可通过加强理论教育,提升自身本领,搭建实践平台等层面,筑牢青年理想之基、强化青年使命之责、磨砺青年攻坚之苦、夯实青年奋斗之基,使青年成长为堪当民族复兴大任的新时代好青年。

做集经师和人师于一身的思政课"大先生"

做集经师和人师于一身的“大先生”是思政教师专业发展的新方向与新要求。思政课“大先生”呈现出“大成智慧”“大任担当”“大写人格”的价值定位,表现为大经师和大人师的统一、最好的小我和最好的大我的统一、优秀的传道者和坚定的行道者的统一的精神境界。为了成为思政课“大先生”,思政教师需要固牢初心使命,坚守角色自觉,遵循思政教师成长的质量互变规律,落小落细落实“六要”“八个相统一”,“讲深、讲透、讲活”思政课。

Deformation and defects in hydroforming of Y-shaped tubes

Hydroforming process of a Y-shaped stainless steel tube was investigated through numerical simulation and experiments. The forming process and reasons of typical defects were analyzed with three different loading paths. Thickness distribution of formed Y-shaped tube was obtained. It is shown by numerical and experimental results that the transition regions are depressed in the forming condition of low inner pressure and wrinkles occur, while fracture occurs in the forming condition of high inner pressure. After forming, the thickness in left transition fillet region is the largest, that in fight transition fillet region is thinner, and the thinnest thickness is at the top of the protrusion. The original thickness line is below the top of the protrusion. The thinning area occurs above this line, while the thickening area is below this line. The maximum thinning rate is significantly increased as the calibration pressure increases, while the maximum thickening rate remains almost unchanged.