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简述CDPF教学模式在中医儿科住院医师规范化培训中的应用

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中国中医药现代远程教育 2024年第5期22卷 196-198页

作者：赵兴友周旭李成刚山东中医药大学第一临床医学院山东济南250014 山东中医药大学附属医院儿科山东济南250014

目的评价CDPF教学模式在中医儿科住院医师规范化培训中的应用效果。方法将2020年9月—2021年8月的39名规培学生作为实验组,2019年9月—2020年8月的37名规培学生作为对照组。实验组采用CDPF教学模式,对照组则采用传统的床旁教学模式。... 详细信息

目的评价CDPF教学模式在中医儿科住院医师规范化培训中的应用效果。方法将2020年9月—2021年8月的39名规培学生作为实验组,2019年9月—2020年8月的37名规培学生作为对照组。实验组采用CDPF教学模式,对照组则采用传统的床旁教学模式。实验结束后,对2组的基础理论、专科技能、辨证分析能力及教学满意度进行比较。结果实验组学生的专科技能考核成绩(43.51±3.09)分高于对照组的(40.62±5.68)分,辨证分析能力考核成绩(81.36±2.49)分高于对照组的(78.54±2.44)分,教学满意度高于对照组(P0.05)。结论CDPF教学模式对提升中医儿科住院医师规范化培训教学质量具有明显的促进作用,且有较高的学生认可度。

关键词： CDPF教学模式中医儿科住院医师规范化培训

Spatiotemporal characteristics of cultural sites and their driving forces in the Ili River Valley during historical periods

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Journal of Geographical Sciences 2015年第9期25卷 1089-1108页

作者： WANG Fang YANG zhaoping LUAN Fuming XIONG Heigang SHI Hui WANG zhaoguo zhao xingyou QIN Wenmin WU Wenjie LI Dong Xinjiang Institute of Ecology and Geography CAS Urumqi 830011 China University of Chinese Academy of Sciences Beijing 100049 China Business School Lishui University Lishui 323000Zhejiang China College of Art and Science Beijing Union University Beijing 100083 China Tourism School Xinjiang University of Finance and-Economics Urumqi 830012 China

This study applies ArcGIS to analyze the spatiotemporal distribution of cultural sites in the Ill River Valley in northwestern China. It explores relationships between the sites＇ spatiotemporal evolutionary characteristics, human history, and the natural environment. The results indicate that the numbers and proportions of the sites, and the frequency of their oc- currence, exhibited an inverted V-shaped change trend during six historical periods. The ＂high in the east and low in the west＂ spatial distribution pattern of the first three periods shifted to the one the ＂high in the west and low in the east＂ during the latter three periods, demonstrating a change in the spatial center of gravity of human activities. The sites were mainly distributed on slopes of grades 1-5, with their proportions increasing from 75% during the Spring and Autumn Period （770 BC-476 BC）-Qin Dynasty （221 BC-207 BC） to 93.75% during the Qing Dynasty-Modern period. The concentrated distribution of site elevations shifted from grades 4-8 during the Spring and Autumn Period-Qin Dynasty, and the Western Han （206 BC-8）-Southern and Northern Dynasties （420-589）, to grades 1-4 during the latter three periods. The number of sites showed a shifting trend from high-elevation mountains and hills to low-elevation plains, and from high slopes to low slopes. In particular, the sites exhibited a special ＂moist＂ evolutionary pattern of migration from middle and upstream areas to downstream areas, as opposed to the migration pattern of sites located in typical arid areas. The study also considered factors influencing the distribution and spatiotemporal evolution of cultural sites, notably, human factors and natural factors.

关键词： Ili River Valley historical periods cultural sites spatiotemporal distribution driving forces

原位保护技术在地铁基坑上跨大直径截污干管时的应用

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建筑施工 2022年第10期44卷 2425-2428页

作者：赵兴友上海隧道工程有限公司上海200232

针对城市核心区地下空间基坑时,管线无法迁改而只能采取原位保护所存在的基坑渗漏变形,甚至污水倒灌的风险,开展了技术攻关。以昆明轨道交通2号线二期六甲站1号风亭工程为例,探讨地铁大跨度深基坑上跨大直径截污干管时,MJS工法桩处理围... 详细信息

针对城市核心区地下空间基坑时,管线无法迁改而只能采取原位保护所存在的基坑渗漏变形,甚至污水倒灌的风险,开展了技术攻关。以昆明轨道交通2号线二期六甲站1号风亭工程为例,探讨地铁大跨度深基坑上跨大直径截污干管时,MJS工法桩处理围护结构缺口、钢管抱箍、包封防止管节错位、隔离桩加分段分级跳仓开挖控制管道上浮或侧移等管道原位保护措施的适用性,以期为类似基坑工程提供有效参考。

关键词：轨道交通截污干管 MJS工法桩原位保护

Automatic modeling algorithm of stochastic error for inertial sensors

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Control Theory and Technology 2024年第1期22卷 81-91页

作者： Luodi zhao Long zhao School of Automation Science and Electrical Engineering Beihang UniversityBeijing100191China Digital Navigation Center Beihang UniversityBeijing100191China Science and Technology on Aircraft Control Laboratory Beihang UniversityBeijing100191China

This paper proposes an automatic algorithm to determine the properties of stochastic processes and their parameters for inertial error. The proposed approach is based on a recently developed method called the generalized method of wavelet moments (GMWM), whose estimator was proven to be consistent and asymptotically normally distributed. This algorithm is suitable mainly (but not only) for the combination of several stochastic processes, where the model identification and parameter estimation are quite difficult for the traditional methods, such as the Allan variance and the power spectral density analysis. This algorithm further explores the complete stochastic error models and the candidate model ranking criterion to realize automatic model identification and determination. The best model is selected by making the trade-off between the model accuracy and the model complexity. The validation of this approach is verified by practical examples of model selection for MEMS-IMUs (micro-electro-mechanical system inertial measurement units) in varying dynamic conditions.

关键词： GMWM Stochastic process Inertial sensor Sensor calibration Error model Allan variance

Meeting the challenges of invasive alien species

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National Science Review 2024年第3期11卷 296-298页

作者： Weijie zhao NSR news

The Xinjiang Uygur Autonomous Region of China is famous for its tomato production. Abundant sunshine, large day–night temperature difference and the abundant irrigation by snowmelt from the Tianshan Mountains produce...

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Ling-Ling Chen: RNA has its own features;don't study it as a protein

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National Science Review 2024年第2期11卷 301-305页

作者： Weijie zhao NSR

Non-coding RNA(ncRNA) has been a very active research area over the past 30 years. From small nc RNA – the discovery of RNA interference won the lead researchers the Nobel Prize, to long ncRNA(lncRNA), which has attracted much attention in recent years, various nc RNAs participate in all kinds of biological processes and show a variety of biomedical application prospects.

关键词： RNA

Comparative Analysis between Acoustic Emission Testing and Magnetic Flux Leakage Testing

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Comparative Analysis between Acoustic Emission Testing and M...

One dimensional CeO_(2) nanorods/poly(ethylene oxide) solid composite electrolyte for all-solid-state lithium-ion batteries

2018远东无损检测新技术论坛

作者： Yongtao zhao Xuewei Shao xingyou zhao Yuming Lin CNPC Research Institute of Safety & Environment Technology China University of Petroleum-Beijing

Storage tanks are used as the main equipment for storage of petroleum and petrochemical raw materials and products, and are widely used in petroleum and petrochemical enterprises. Safe operation of storage tanks is the premise to ensure the normal production of enterprises. In recent years, in accordance with the requirements of the Safety and Environmental Protection Department of the group company, a large number of on-line acoustic emission testing testing has been carried out in our institute. At the same time, Magnetic flux leakage testing of some storage tanks is carried out according to the actual situation, and the comparison is made in depth. The results show that acoustic emission testing can well reflect the corrosion of tank bottom and can provide decision support for the daily management and maintenance of tanks.

关键词： Tank Acoustic emission testing Magnetic flux leakage testing

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Journal of Rare Earths 2024年第3期42卷 570-577,I0005页

作者： Yudi Guo Erqing zhao Xiaofang zhao Shuailei Liu School of Chemistry and Materials Engineering Xinxiang UniversityXinxiang453003China School of Chemistry and Chemical Engineering Henan Institute of Science and TechnologyXinxiang453003China

The research of poly(ethylene oxide)(PEO)-based solid composite electrolyte with high ionic conductivity and excellent interfacial stability is the key to the development of all-solid-state lithium-ion batteries(ASSLIBs). Herein, uniform nanorod structured CeO_(2) fillers were controllably synthesized by electrospinning, which were subsequently filled into PEO polymer to prepare CeO_(2)/PEO solid composite electrolyte. The addition of CeO_(2) nanorods can reduce both the glass transition temperature and the melting point of PEO polymer, and also interact with PEO and lithium bis(trifluoromethanesulphonyl)imide(LITFSI) by Lewis acid—base reaction. Therefore, the solid composite electrolyte exhibits a high ionic conductivity of 4.52 × 10^(-4)S/cm, a wide electrochemical stability window of about 4.8 V, and a good interfacial stability with Li at 55℃. Moreover, the LiFePO_4/Li ASSLIB divulges the discharging specific capacity of 165, 162, 156 and 146 mA,h/g at 0.2, 0.5, 1 and 2 C, respectively, and achieves the capacity retention of 90.3% after 150 cycles at 0.5 C. Consequently, one dimensional CeO_(2) nanorods can be considered as an alternative filler for polymeric solid electrolyte.

关键词： Poly(ethylene oxide) Solid composite electrolyte CeO_(2)nanorods Ionic conductivity Rare earths

A DIRECT DISCONTINUOUS GALERKIN METHOD FOR TIME FRACTIONAL DIFFUSION EQUATIONS WITH FRACTIONAL DYNAMIC BOUNDARY CONDITIONS

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Journal of Computational Mathematics 2024年第1期42卷 156-177页

作者： Jingjun zhao Wenjiao zhao Yang Xu School of Mathematics Harbin Institute of TechnologyHarbin 150001China

This paper deals with the numerical approximation for the time fractional diffusion problem with fractional dynamic boundary *** well-posedness for the weak solutions is studied.A direct discontinuous Galerkin approach is used in spatial direction under the uniform meshes,together with a second-order Alikhanov scheme is utilized in temporal direction on the graded mesh,and then the fully discrete scheme is ***,the stability and the error estimate for the full scheme are analyzed in *** experiments are also given to illustrate the effectiveness of the proposed method.

关键词： Time fractional diffusion equation Numerical stability Convergence