The ultrasound pressure-strain loop (PSL) technique is a non-invasive method of examining myocardial work, which takes into account the effect of cardiac afterload on deformation and combines the overall longitudinal ...The ultrasound pressure-strain loop (PSL) technique is a non-invasive method of examining myocardial work, which takes into account the effect of cardiac afterload on deformation and combines the overall longitudinal strain force of the left ventricle with the changes in the left ventricular pressure, allowing earlier detection of possible subclinical cardiac damage in patients, and a more accurate and non-invasive assessment of the patient’s myocardial work performance. In this article, we will discuss the progress of PSL applications in cardiovascular diseases.展开更多
目的探讨PDCA(Plan Do Check Act)循环结合追踪方法学在提升病案管理效率与编码精准度中的应用效果。方法选取2023年1—6月于盐城市第三人民医院病案室工作的8名工作人员及同期39000份病案资料,纳入追踪组,接受追踪方法学管理;选取2023...目的探讨PDCA(Plan Do Check Act)循环结合追踪方法学在提升病案管理效率与编码精准度中的应用效果。方法选取2023年1—6月于盐城市第三人民医院病案室工作的8名工作人员及同期39000份病案资料,纳入追踪组,接受追踪方法学管理;选取2023年7—12月同一批工作人员及同期39000份病案资料,纳入联合组,在追踪组基础上接受PDCA循环管理。比较两组管理效果。结果联合组工作质量各项评分高于追踪组,差异有统计学意义(P均<0.05)。联合组病案质量各项评分高于追踪组,差异有统计学意义(P均<0.05)。联合组工作效率、编码准确率(98.00%)高于追踪组,修改率(1.52%)、错误率(0.48%)低于追踪组,差异有统计学意义(χ^(2)=486.789,313.187,170.318,P均<0.05)。结论PDCA循环结合追踪方法学在病案管理中的应用能够显著提高工作人员工作质量、工作效率以及编码精准度,优化病案管理质量。展开更多
The effect of rail corrugation on the vertical dynamics of railway vehicle coupled with a curved track is investigated in detail with a numerical method when a wheelset is steadily curving. In the calculation of rail ...The effect of rail corrugation on the vertical dynamics of railway vehicle coupled with a curved track is investigated in detail with a numerical method when a wheelset is steadily curving. In the calculation of rail corrugation we consider the combination of Kalkers rolling contact theory modified, a model of material loss on rail running surface, and a dynamics model of railway vehicle coupled with a curved track. In the establishment of the dynamic model, for simplicity, one fourth of the freight car without lateral motions, namely a wheelset and the equivalent one fourth freight car body above it, is considered. The Euler beam is used to model the rails and the track structure under the rails is replaced with equivalent springs, dampers and mass bodies. The numerical results show the great influence of the rail corrugation on the vibration of the parts of the vehicle and the track, and the some characters of rail corrugation in development.展开更多
Video object tracking is an important research topic of computer vision, whichfinds a wide range of applications in video surveillance, robotics, human-computerinteraction and so on. Although many moving object tracki...Video object tracking is an important research topic of computer vision, whichfinds a wide range of applications in video surveillance, robotics, human-computerinteraction and so on. Although many moving object tracking algorithms have beenproposed, there are still many difficulties in the actual tracking process, such asillumination change, occlusion, motion blurring, scale change, self-change and so on.Therefore, the development of object tracking technology is still challenging. Theemergence of deep learning theory and method provides a new opportunity for theresearch of object tracking, and it is also the main theoretical framework for the researchof moving object tracking algorithm in this paper. In this paper, the existing deeptracking-based target tracking algorithms are classified and sorted out. Based on theprevious knowledge and my own understanding, several solutions are proposed for theexisting methods. In addition, the existing deep learning target tracking method is stilldifficult to meet the requirements of real-time, how to design the network and trackingprocess to achieve speed and effect improvement, there is still a lot of research space.展开更多
文摘The ultrasound pressure-strain loop (PSL) technique is a non-invasive method of examining myocardial work, which takes into account the effect of cardiac afterload on deformation and combines the overall longitudinal strain force of the left ventricle with the changes in the left ventricular pressure, allowing earlier detection of possible subclinical cardiac damage in patients, and a more accurate and non-invasive assessment of the patient’s myocardial work performance. In this article, we will discuss the progress of PSL applications in cardiovascular diseases.
文摘目的探讨PDCA(Plan Do Check Act)循环结合追踪方法学在提升病案管理效率与编码精准度中的应用效果。方法选取2023年1—6月于盐城市第三人民医院病案室工作的8名工作人员及同期39000份病案资料,纳入追踪组,接受追踪方法学管理;选取2023年7—12月同一批工作人员及同期39000份病案资料,纳入联合组,在追踪组基础上接受PDCA循环管理。比较两组管理效果。结果联合组工作质量各项评分高于追踪组,差异有统计学意义(P均<0.05)。联合组病案质量各项评分高于追踪组,差异有统计学意义(P均<0.05)。联合组工作效率、编码准确率(98.00%)高于追踪组,修改率(1.52%)、错误率(0.48%)低于追踪组,差异有统计学意义(χ^(2)=486.789,313.187,170.318,P均<0.05)。结论PDCA循环结合追踪方法学在病案管理中的应用能够显著提高工作人员工作质量、工作效率以及编码精准度,优化病案管理质量。
基金The project supported by the National Natural Science Foundation of China(59935100)the Foundation of Ph.D Student Education of China(20020613001)the Foundation of the Author of National Excellent Doctoral Dissertation of China(2000048,2002048)
文摘The effect of rail corrugation on the vertical dynamics of railway vehicle coupled with a curved track is investigated in detail with a numerical method when a wheelset is steadily curving. In the calculation of rail corrugation we consider the combination of Kalkers rolling contact theory modified, a model of material loss on rail running surface, and a dynamics model of railway vehicle coupled with a curved track. In the establishment of the dynamic model, for simplicity, one fourth of the freight car without lateral motions, namely a wheelset and the equivalent one fourth freight car body above it, is considered. The Euler beam is used to model the rails and the track structure under the rails is replaced with equivalent springs, dampers and mass bodies. The numerical results show the great influence of the rail corrugation on the vibration of the parts of the vehicle and the track, and the some characters of rail corrugation in development.
基金supported by National Natural Science Foundationof China (Grant No. 51874300)the National Natural Science Foundation of China andShanxi Provincial People’s Government Jointly Funded Project of China for Coal Baseand Low Carbon (Grant No. U1510115)+2 种基金National Natural Science Foundation of China(51104157)the Qing Lan Project, the China Postdoctoral Science Foundation (Grant No.2013T60574)the Scientific Instrument Developing Project of the Chinese Academy ofSciences (Grant No. YJKYYQ20170074).
文摘Video object tracking is an important research topic of computer vision, whichfinds a wide range of applications in video surveillance, robotics, human-computerinteraction and so on. Although many moving object tracking algorithms have beenproposed, there are still many difficulties in the actual tracking process, such asillumination change, occlusion, motion blurring, scale change, self-change and so on.Therefore, the development of object tracking technology is still challenging. Theemergence of deep learning theory and method provides a new opportunity for theresearch of object tracking, and it is also the main theoretical framework for the researchof moving object tracking algorithm in this paper. In this paper, the existing deeptracking-based target tracking algorithms are classified and sorted out. Based on theprevious knowledge and my own understanding, several solutions are proposed for theexisting methods. In addition, the existing deep learning target tracking method is stilldifficult to meet the requirements of real-time, how to design the network and trackingprocess to achieve speed and effect improvement, there is still a lot of research space.
