《国际疾病与相关健康问题统计分类》(International Statistical Classification of Diseases and Related Health Problems,ICD),是在世界卫生组织(WHO)的领导下由全球多个国家的研究中心共同起草的疾病分类标准,旨在为不同医疗资源...《国际疾病与相关健康问题统计分类》(International Statistical Classification of Diseases and Related Health Problems,ICD),是在世界卫生组织(WHO)的领导下由全球多个国家的研究中心共同起草的疾病分类标准,旨在为不同医疗资源下的广大医务工作者在临床诊断及治疗方案选择上提供有效的工具.2019 年5 月25 日举行的第72届世界卫生大会审议通过了第11 次修订版本(ICD-11),并决定从2022 年1 月1 日开始在全球范围内投入使用.与ICD-10 相比,ICD-11 中"精神、行为及神经发育障碍"在疾病分类方面有较大变化。本文就ICD-11 该部分分类主要变化进行介绍,以增进临床工作者的理解。展开更多
The traditional manner to design public transportation system is to sequentially design the transit network and public bicycle network. A new public transportation system design problem that simultaneously considers b...The traditional manner to design public transportation system is to sequentially design the transit network and public bicycle network. A new public transportation system design problem that simultaneously considers both bus network design and public bicycle network design is proposed. The chemical reaction optimization(CRO) is designed to solve the problem. A shortcoming of CRO is that, when the two-molecule collisions take place, the molecules are randomly picked from the container.Hence, we improve CRO by employing different mating strategies. The computational results confirm the benefits of the mating strategies. Numerical experiments are conducted on the Sioux-Falls network. A comparison with the traditional sequential modeling framework indicates that the proposed approach has a better performance and is more robust. The practical applicability of the approach is proved by employing a real size network.展开更多
The cutoff wavenumbers of elliptical waveguides were calculated by using isogeomtric analysis method （IGA）. With NURBS basis functions in IGA, the computational model was consistent with geometric model imported fro...The cutoff wavenumbers of elliptical waveguides were calculated by using isogeomtric analysis method （IGA）. With NURBS basis functions in IGA, the computational model was consistent with geometric model imported from CAD system. The field variable （longitudinal electric/magnetic field） was constructed by the same NURBS basis functions as the representation of geometric model. In the refinement procedure used to get a more accurate solution, communication with original CAD system is unnecessary and the geometric shape is kept unchanged. The Helrnholtz equation is weakened to a set of general eigenvalue equation by virtual work principal with diseretized degree-of-freedom on control points. Elliptical waveguides with three typical eccentricities, 0.1, 0.5 and 0.9, are calculated by IGA with different size mesh. The first four cutoff wavenumbers are obtained even in coarse mesh and the RMS of first 25 cutoff wavenumbers has much more swift convergence rate with decreasing the mesh size than traditional FEM. The accuracy and robustness of the proposed method are validated by elliptical waveguides, and also the method can be applied to waveguides with arbitrary cross sections.展开更多
A sensor scheduling problem was considered for a class of hybrid systems named as the stochastic linear hybrid system （SLHS）. An algorithm was proposed to select one （or a group of） sensor at each time from a set ...A sensor scheduling problem was considered for a class of hybrid systems named as the stochastic linear hybrid system （SLHS）. An algorithm was proposed to select one （or a group of） sensor at each time from a set of sensors. Then, a hybrid estimation algorithm was designed to compute the estimates of the continuous and discrete states of the SLHS based on the observations from the selected sensors. As the sensor scheduling algorithm is designed such that the Bayesian decision risk is minimized, the true discrete state can be better identified. Moreover, the continuous state estimation performance of the proposed algorithm is better than that of hybrid estimation algorithms using only predetermined sensors. Finallyo the algorithms are validated through an illustrative target tracking example.展开更多
文摘《国际疾病与相关健康问题统计分类》(International Statistical Classification of Diseases and Related Health Problems,ICD),是在世界卫生组织(WHO)的领导下由全球多个国家的研究中心共同起草的疾病分类标准,旨在为不同医疗资源下的广大医务工作者在临床诊断及治疗方案选择上提供有效的工具.2019 年5 月25 日举行的第72届世界卫生大会审议通过了第11 次修订版本(ICD-11),并决定从2022 年1 月1 日开始在全球范围内投入使用.与ICD-10 相比,ICD-11 中"精神、行为及神经发育障碍"在疾病分类方面有较大变化。本文就ICD-11 该部分分类主要变化进行介绍,以增进临床工作者的理解。
基金Projects(71301115,71271150,71101102)supported by the National Natural Science Foundation of ChinaProject(20130032120009)supported by Specialized Research Fund for the Doctoral Program of Higher Education of China
文摘The traditional manner to design public transportation system is to sequentially design the transit network and public bicycle network. A new public transportation system design problem that simultaneously considers both bus network design and public bicycle network design is proposed. The chemical reaction optimization(CRO) is designed to solve the problem. A shortcoming of CRO is that, when the two-molecule collisions take place, the molecules are randomly picked from the container.Hence, we improve CRO by employing different mating strategies. The computational results confirm the benefits of the mating strategies. Numerical experiments are conducted on the Sioux-Falls network. A comparison with the traditional sequential modeling framework indicates that the proposed approach has a better performance and is more robust. The practical applicability of the approach is proved by employing a real size network.
基金Project(GZ566) supported by the China-German Joint Research FoundationProjects(51138011, 51109134) supported by the National Natural Science Foundation of China
文摘The cutoff wavenumbers of elliptical waveguides were calculated by using isogeomtric analysis method （IGA）. With NURBS basis functions in IGA, the computational model was consistent with geometric model imported from CAD system. The field variable （longitudinal electric/magnetic field） was constructed by the same NURBS basis functions as the representation of geometric model. In the refinement procedure used to get a more accurate solution, communication with original CAD system is unnecessary and the geometric shape is kept unchanged. The Helrnholtz equation is weakened to a set of general eigenvalue equation by virtual work principal with diseretized degree-of-freedom on control points. Elliptical waveguides with three typical eccentricities, 0.1, 0.5 and 0.9, are calculated by IGA with different size mesh. The first four cutoff wavenumbers are obtained even in coarse mesh and the RMS of first 25 cutoff wavenumbers has much more swift convergence rate with decreasing the mesh size than traditional FEM. The accuracy and robustness of the proposed method are validated by elliptical waveguides, and also the method can be applied to waveguides with arbitrary cross sections.
基金Foundation item： Project（2012AA051603） supported by the National High Technology Research and Development Program 863 Plan of China
文摘A sensor scheduling problem was considered for a class of hybrid systems named as the stochastic linear hybrid system （SLHS）. An algorithm was proposed to select one （or a group of） sensor at each time from a set of sensors. Then, a hybrid estimation algorithm was designed to compute the estimates of the continuous and discrete states of the SLHS based on the observations from the selected sensors. As the sensor scheduling algorithm is designed such that the Bayesian decision risk is minimized, the true discrete state can be better identified. Moreover, the continuous state estimation performance of the proposed algorithm is better than that of hybrid estimation algorithms using only predetermined sensors. Finallyo the algorithms are validated through an illustrative target tracking example.
