In this paper,a physical model,thin plate resonator model,is proposed and analyzed based on the thin plate theory to investigate the acoustic signal response of the loose stator wedge to an impact. 基于薄板理论,建立并分析了电动机定子槽楔松动后的物理模型,薄板声谐振子模型。
The AICPA uses IRT (Item Response Theory) for the objective portion of the examination. 针对考试客观的部分，AICPA美国会计师协会使用IRT项目(题目)反应理论(IRTItemResponseTheory)。
Conclusion: The formal test information reaches 31.1548, SE=0.1267, which is accorded with the requirements of the item response theory. 结论：正式测验的信息量达到31.
Item response theory is considered as one of the best hypothesis to detect the DIF compared with the classical measurement theory. 与经典测量理论相比,在测查项目功能差异时,运用项目反应理论有较强的前提假设和优越性。
Inspired by of Item Response Theory (IRT), the adaptive learning content recommendation mechanism based on learner ability test is studied and proposed. 由项目反应理论（IRT）获得灵感，提出并研究了基于能力测试的学习内容自适应推送机制。