Quasi-periodic solutions with multiple base frequencies exhibit the feature of 2π-periodicity with respect to each of the hyper-time variables.However,it remains a challenge work,due to the lack of effective solution...Quasi-periodic solutions with multiple base frequencies exhibit the feature of 2π-periodicity with respect to each of the hyper-time variables.However,it remains a challenge work,due to the lack of effective solution methods,to solve and track the quasi-periodic solutions with multiple base frequencies until now.In this work,a multi-steps variable-coefficient formulation is proposed,which provides a unified framework to enable either harmonic balance method or collocation method or finite difference method to solve quasi-periodic solutions with multiple base frequencies.For this purpose,a method of alternating U and S domain is also developed to efficiently evaluate the nonlinear force terms.Furthermore,a new robust phase condition is presented for all of the three methods to make them track the quasi-periodic solutions with prior unknown multiple base frequencies,while the stability of the quasi-periodic solutions is assessed by mean of Lyapunov exponents.The feasibility of the constructed methods under the above framework is verified by application to three nonlinear systems.展开更多
目的调查医院内国际疾病分类(ICD)编码的培训工作现状,探究其中存在的问题与解决要点。方法回顾2015～2017年成都医学院第一附属医院ICD编码内训工作情况。从组织者、受训者两个方面对相关人群开展问卷调查,了解前者对该工作重要性的认...目的调查医院内国际疾病分类(ICD)编码的培训工作现状,探究其中存在的问题与解决要点。方法回顾2015～2017年成都医学院第一附属医院ICD编码内训工作情况。从组织者、受训者两个方面对相关人群开展问卷调查,了解前者对该工作重要性的认识与推动状况,了解后者对该知识的掌握和受训意愿等情况,由此分析其中存在的主要问题和原因,再与同类医院作横向比较。结果 3年来,本院ICD编码培训活动合计11次,含院级3次、科级5次及面向一年级研究生的专题讲座3次。从组织培训意愿来看,医保办较强烈,教培部较弱,但各部门均少有落实。在受训者方面,临床医师和研究生对于ICD编码、诊断相关分类(diagnosis related groups,DRGs)知识了解较多;住培学员的知晓情况差于临床医师,但二者各项指标变化趋势一致;而本科实习生则了解甚少。住培学员与研究生对相关知识的了解程度、价值认识差异有统计学意义(P<0.05)。同类医院的情况与之相仿。结论医院ICD编码培训工作急需加强,培训部门应面向不同的对象分类建设ICD编码课程并加强培训管理。展开更多
基金supported by the National Natural Science Foundation of China(Grant Nos.12172267 and 12302014).
文摘Quasi-periodic solutions with multiple base frequencies exhibit the feature of 2π-periodicity with respect to each of the hyper-time variables.However,it remains a challenge work,due to the lack of effective solution methods,to solve and track the quasi-periodic solutions with multiple base frequencies until now.In this work,a multi-steps variable-coefficient formulation is proposed,which provides a unified framework to enable either harmonic balance method or collocation method or finite difference method to solve quasi-periodic solutions with multiple base frequencies.For this purpose,a method of alternating U and S domain is also developed to efficiently evaluate the nonlinear force terms.Furthermore,a new robust phase condition is presented for all of the three methods to make them track the quasi-periodic solutions with prior unknown multiple base frequencies,while the stability of the quasi-periodic solutions is assessed by mean of Lyapunov exponents.The feasibility of the constructed methods under the above framework is verified by application to three nonlinear systems.
文摘目的调查医院内国际疾病分类(ICD)编码的培训工作现状,探究其中存在的问题与解决要点。方法回顾2015～2017年成都医学院第一附属医院ICD编码内训工作情况。从组织者、受训者两个方面对相关人群开展问卷调查,了解前者对该工作重要性的认识与推动状况,了解后者对该知识的掌握和受训意愿等情况,由此分析其中存在的主要问题和原因,再与同类医院作横向比较。结果 3年来,本院ICD编码培训活动合计11次,含院级3次、科级5次及面向一年级研究生的专题讲座3次。从组织培训意愿来看,医保办较强烈,教培部较弱,但各部门均少有落实。在受训者方面,临床医师和研究生对于ICD编码、诊断相关分类(diagnosis related groups,DRGs)知识了解较多;住培学员的知晓情况差于临床医师,但二者各项指标变化趋势一致;而本科实习生则了解甚少。住培学员与研究生对相关知识的了解程度、价值认识差异有统计学意义(P<0.05)。同类医院的情况与之相仿。结论医院ICD编码培训工作急需加强,培训部门应面向不同的对象分类建设ICD编码课程并加强培训管理。
