高校是基础研究主力军和重大科技突破策源地,肩负着人才培养和科技创新的双重任务。加快变革高校科研范式和组织模式,强化有组织科研是高校服务国家和区域战略需求、实现高水平科技自立自强的关键。高校教师作为高校科研工作承担主体与核心力量,参与有组织科研有利于扩充专业知识,确定研究方向;引进学术资源,提高科研效率;促进青年教师专业成长,充分发挥领军人才的战略科学家作用。因此,为提升高校教师参与有组织科研工作的质量与水平,教师应强化政策理解与战略对接,调整科研方向与组织模式;高校应健全管理体制与评价机制,推进人才培养与平台建设,为加快建设世界重要人才中心和创新高地提供有力支撑。As the main force of basic research and the source of major scientific and technological breakthroughs, colleges and universities shoulder the dual tasks of personnel training and scientific and technological innovation. Accelerating the transformation of scientific research paradigm and organizational model in colleges and universities, and strengthening organized scientific research are the keys for colleges and universities to serve national and regional strategic needs and achieve high level scientific and technological self-reliance. As the main body and core force of scientific research, university teachers participate in organized scientific research to expand professional knowledge and determine the direction of research. Introduce academic resources to improve research efficiency;Promote the professional growth of young teachers and give full play to the role of leading talents as strategic scientists. Therefore, in order to improve the quality and level of university teachers’ participation in organized scientific research, teachers should strengthen the understanding of policies and the docking of strategies, and adjust the direction and organizational model of scientific research. Universities should improve their management system and evaluation mechanism, promote personnel training and platform construction, and provide strong support for accelerating the construction of an important talent center and innovation highland in the world.
电子工业发展使多层陶瓷电容器的需求大增,为降低成本,适用于贱金属电极的介质陶瓷成为研究热点。选择MnO2掺杂0.95Ba Ti O3–0.05Bi Co O3陶瓷,经调整掺杂比例,其抗还原与介电性能大幅提升。结果表明:还原气氛下Mn离子变价使晶胞...
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电子工业发展使多层陶瓷电容器的需求大增,为降低成本,适用于贱金属电极的介质陶瓷成为研究热点。选择MnO2掺杂0.95Ba Ti O3–0.05Bi Co O3陶瓷,经调整掺杂比例,其抗还原与介电性能大幅提升。结果表明:还原气氛下Mn离子变价使晶胞体积膨胀,形成不均匀结构使Curie峰分裂并展宽,介温稳定性提高,x=0.5时性能最佳,ε(25℃)=2354,tanδ=0.007 5,稳定性符合X8R。同时,元素变价的过程有助于降低电子浓度,电阻率提高至1.84×1013Ω·cm,最大耐压达到210 k V/cm。热激励退极化漏电流测试表明Co、Mn结合氧空位形成缺陷偶极,进一步增强抗还原性能。
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