目的初步构建基于工作流理念的患者报告结局测量信息系统中国中心(Patient‑reported Outcomes Measurement Information System National Center‑China,PNC‑China)信息化管理系统,优化PNCChina的管理流程。方法通过质性访谈了解PNC‑Chin...目的初步构建基于工作流理念的患者报告结局测量信息系统中国中心(Patient‑reported Outcomes Measurement Information System National Center‑China,PNC‑China)信息化管理系统,优化PNCChina的管理流程。方法通过质性访谈了解PNC‑China工作人员对信息化管理系统的构建需求及功能设想;结合工作流理论的三大要素,构建PNC‑China信息化管理系统初步框架。结果通过质性访谈归纳提炼出PNC‑China信息化管理需求的三大主题,即相关工作流程繁琐,急需信息化工具辅助;文件管理工具较落后,急需实现系统化、信息化管理;合作管理欠规范,急需实现标准化。结合需求及功能设想,构建出PNC‑China信息化管理系统的3个功能框架,即PROMIS中文版翻译工作流程框架、临床检验工作流程框架及临床应用工作流程框架。结论基于工作流理念,贴合PNC‑China工作内容和流程构建的信息化管理系统框架,将有助于推动我国患者报告结局测量信息系统的相关研究和临床实践。展开更多
Defective phononic crystals(PnCs)have enabled spatial localization and quantitative amplification of elastic wave energy.Most previous research has focused on applications such as narrow-bandpass filters,ultrasonic se...Defective phononic crystals(PnCs)have enabled spatial localization and quantitative amplification of elastic wave energy.Most previous research has focused on applications such as narrow-bandpass filters,ultrasonic sensors,and piezoelectric energy harvesters,typically operating under the assumption of an external elastic wave incidence.Recently,a novel approach that uses defective PnCs as ultrasonic actuators to generate amplified waves has emerged.However,the existing studies are limited to the generation of either longitudinal or bending waves,with no research addressing the concurrent generation of both.Hence,this paper proposes a straightforward methodology for the concurrent generation and amplification of both wave types utilizing defect modes at independent defect-band frequencies.Bimorph piezoelectric elements are attached to the defect,with each element connected to independent external voltage sources.By precisely adjusting the magnitude and temporal phase differences between the voltage sources,concurrently amplified wave generation is achieved.The paper highlights the advantages of the proposed analytical model.This model is both computationally time-efficient and accurate,in comparison with the COMSOL simulation results.For instance,in case studies,the analytical model reduces the computational time from one hour to mere seconds,while maintaining acceptable error rates of 1%in peak frequencies.This concurrent wave-generation methodology opens new avenues for applications in rotating machinery fault diagnosis,structural health monitoring,and medical imaging.展开更多
The existing physical-layer network coding(PNC) can be grouped into three generic schemes,which are XOR-based PNC,superposition-based PNC,and denoising-and-forward(DNFbased) PNC.Generally speaking,DNF-based PNC has be...The existing physical-layer network coding(PNC) can be grouped into three generic schemes,which are XOR-based PNC,superposition-based PNC,and denoising-and-forward(DNFbased) PNC.Generally speaking,DNF-based PNC has better performance of rate pair region compared with the other two schemes when the transmission is symmetric.When the transmission is asymmetric,its performance is degraded severely.However,superposition-based PNC does not have that limitation even if its rate pair region performance is inferior to that of DNF-based PNC and XOR-based PNC.In this paper,we focus on the combined use of the two PNC schemes,superposition-based PNC and DNFbased PNC,and present a novel PNC scheme called joint superposition and DNF physical-layer network coding(JSDNF-based PNC) as well as the information theory analysis of the achievable rate pair region.At the same time,in the proposed scheme,an adaptive power allocation factor is introduced.By changing the power factor,the system can adapt its rate pair region flexibly.The numerical results show that the proposed scheme achieves the largest rate pair region when the rate difference of two source signals is very large.At the same time,the support on asymmetric transmission is also an important profit of the scheme.展开更多
文摘目的初步构建基于工作流理念的患者报告结局测量信息系统中国中心(Patient‑reported Outcomes Measurement Information System National Center‑China,PNC‑China)信息化管理系统,优化PNCChina的管理流程。方法通过质性访谈了解PNC‑China工作人员对信息化管理系统的构建需求及功能设想;结合工作流理论的三大要素,构建PNC‑China信息化管理系统初步框架。结果通过质性访谈归纳提炼出PNC‑China信息化管理需求的三大主题,即相关工作流程繁琐,急需信息化工具辅助;文件管理工具较落后,急需实现系统化、信息化管理;合作管理欠规范,急需实现标准化。结合需求及功能设想,构建出PNC‑China信息化管理系统的3个功能框架,即PROMIS中文版翻译工作流程框架、临床检验工作流程框架及临床应用工作流程框架。结论基于工作流理念,贴合PNC‑China工作内容和流程构建的信息化管理系统框架,将有助于推动我国患者报告结局测量信息系统的相关研究和临床实践。
基金supported by the Basic Science Research Program through the National Research Foundation of Korea,funded by the Ministry of Education(No.2022R1I1A1A01056406)。
文摘Defective phononic crystals(PnCs)have enabled spatial localization and quantitative amplification of elastic wave energy.Most previous research has focused on applications such as narrow-bandpass filters,ultrasonic sensors,and piezoelectric energy harvesters,typically operating under the assumption of an external elastic wave incidence.Recently,a novel approach that uses defective PnCs as ultrasonic actuators to generate amplified waves has emerged.However,the existing studies are limited to the generation of either longitudinal or bending waves,with no research addressing the concurrent generation of both.Hence,this paper proposes a straightforward methodology for the concurrent generation and amplification of both wave types utilizing defect modes at independent defect-band frequencies.Bimorph piezoelectric elements are attached to the defect,with each element connected to independent external voltage sources.By precisely adjusting the magnitude and temporal phase differences between the voltage sources,concurrently amplified wave generation is achieved.The paper highlights the advantages of the proposed analytical model.This model is both computationally time-efficient and accurate,in comparison with the COMSOL simulation results.For instance,in case studies,the analytical model reduces the computational time from one hour to mere seconds,while maintaining acceptable error rates of 1%in peak frequencies.This concurrent wave-generation methodology opens new avenues for applications in rotating machinery fault diagnosis,structural health monitoring,and medical imaging.
基金supported in part by National Natural Science Foundation of China under Grant No. 61071090Postgraduate Innovation Program of Scientific Research of Jiangsu Province under Grant No. CX10B -184Z
文摘The existing physical-layer network coding(PNC) can be grouped into three generic schemes,which are XOR-based PNC,superposition-based PNC,and denoising-and-forward(DNFbased) PNC.Generally speaking,DNF-based PNC has better performance of rate pair region compared with the other two schemes when the transmission is symmetric.When the transmission is asymmetric,its performance is degraded severely.However,superposition-based PNC does not have that limitation even if its rate pair region performance is inferior to that of DNF-based PNC and XOR-based PNC.In this paper,we focus on the combined use of the two PNC schemes,superposition-based PNC and DNFbased PNC,and present a novel PNC scheme called joint superposition and DNF physical-layer network coding(JSDNF-based PNC) as well as the information theory analysis of the achievable rate pair region.At the same time,in the proposed scheme,an adaptive power allocation factor is introduced.By changing the power factor,the system can adapt its rate pair region flexibly.The numerical results show that the proposed scheme achieves the largest rate pair region when the rate difference of two source signals is very large.At the same time,the support on asymmetric transmission is also an important profit of the scheme.
