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医院—高校结合的思政教育对护理实习生职业价值观以及职业认同感的影响

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中国高等医学教育 2024年第7期 34-36页

作者：徐静王咏梅宁丽蔡丽丽冯颖郑宇洁吴天姿西湖大学医学院附属杭州市第一人民医院浙江杭州310003

目的:探讨医院—高校结合的思政教育对护理实习生职业价值观及职业认同感的影响。方法:选取2.2.年至2.2.年的32.名护理实习生作为研究对象,将2.2.年以及2.2.年的护理实习生分别设为对照组和试验组,比较思政教育前后护理实习生职业价值... 详细信息

目的:探讨医院—高校结合的思政教育对护理实习生职业价值观及职业认同感的影响。方法:选取2.2.年至2.2.年的32.名护理实习生作为研究对象,将2.2.年以及2.2.年的护理实习生分别设为对照组和试验组,比较思政教育前后护理实习生职业价值观及职业认同感的变化。结果:教育前,两组护理实习生职业价值观及职业认同感各项条目均分比较相近(P>0.05)。教育后,试验组的职业价值观及职业认同感各项条目均分均显著高于对照组(P<0.05)。结论:医院—高校结合的思政教育可有效提高护理实习生的职业价值观和职业认同感。

关键词：护理实习生思政教育职业价值观职业认同感医院—高校结合

高职学生数字素养培育的时代需求、现实困境和实现路径

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职业教育研究 2024年第5期 61-69页

作者：杨莹吴伟伟深圳信息职业技术学院广东深圳518172 哈尔滨工业大学黑龙江哈尔滨150001

数字技术的广泛应用促进了职业岗位和人才知识技能结构的变革,对培养学生数字技术技能、数字应用技能、数字意识技能等数字素养产生了时代需求。以服务社会产业发展为核心职能的高职院校,肩负着数字经济时代技术技能型人才的数字素养培... 详细信息

数字技术的广泛应用促进了职业岗位和人才知识技能结构的变革,对培养学生数字技术技能、数字应用技能、数字意识技能等数字素养产生了时代需求。以服务社会产业发展为核心职能的高职院校,肩负着数字经济时代技术技能型人才的数字素养培育重任,但却面临着“政校企社”协同育人不足、产教融合不深不实,数字技术与高职教育融合深度不够的现实困境。基于时代需求和现实困境,高职院校可通过建构多元主体协同共治的数字素养教育生态,践行“适需服务”的产教融合,以教师数字化教学能力推动学生数字素养培育过程创新变革等路径,实现高职学生数字素养培育的可持续发展。

关键词：数字素养高职教育教育生态

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一种可降低开关电源电磁干扰的扩频时钟电路

固体电子学研究与进展 2024年第3期44卷 239-244页

作者：钟超超宋奎鑫孔瀛康磊梁庭中北大学微纳器件与系统教育部重点实验室太原030051 中国航天科技集团公司北京微电子技术研究所北京100029

介绍了一种基于0.18μm BCD工艺实现的可用于降低开关电源转换器电磁干扰(Electromagnetic inter⁃ference,EMI)的扩频时钟电路,电路中的双相张弛振荡器可在1.8~4.0 MHz工作,采用了一个三输入比较器配合时序电路实现了振荡器的正常启动... 详细信息

介绍了一种基于0.18μm BCD工艺实现的可用于降低开关电源转换器电磁干扰(Electromagnetic inter⁃ference,EMI)的扩频时钟电路,电路中的双相张弛振荡器可在1.8~4.0 MHz工作,采用了一个三输入比较器配合时序电路实现了振荡器的正常启动。为避免传统三角波调制方法产生人耳可闻噪声、导致输出噪声较大等缺点,采用了伪随机调制方法,首先通过7位线性移位反馈寄存器生成伪随机码,再使用电流舵数模转换器将伪随机码转换为电流,最终伪随机变化的电流控制振荡器频率以伪随机的方式变化。本文提出的扩频时钟电路应用在一款降压DC-DC转换器芯片中并进行了流片,测试结果表明扩频后功率谱基波峰值幅度下降10 dB,二次谐波峰值幅度下降17 dB,功率谱中没有明显的调制频率分量,可有效降低DC-DC转换器的EMI。

关键词：扩频低电磁干扰伪随机张弛振荡器

Identification of single-chain antibody fragments specific against SARS-associated coronavirus from phage-displayed antibody library

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Identification of single-chain antibody fragments specific a...

Multi-objective Optimization Design and Experimental Investigation of Centrifugal Fan Performance

湖北省生物工程学会2.04年年会

作者： Liu Zheng-Xue Yi Guo-Hua QiYi-Peng Liu ying-Le Yan Jun-Peng qian Juan Du En-Qi,Ling Wei-Fang Key Laboratory of Virology, {2., College of Life science, Wuhan University Wuhan 430072. P.R.China.

To develop early diagnostic reagents, effective vaccines and even drugs against SARS-associated coronavirus (SARS-CoV), we have used the human single fold single-chain antibody fragments (scFv) libraries I+J (Tomlinson I+J) to identify novel scFvs, which can specifically bind to SARS-CoV. Eight positive clones were obtained after three rounds of affinity selection, and two stronger positive scFvs designated as B5 and B9 was sequenced, the results showed they

关键词： SARS single-chain antibody fragment Identification EL1SA Label

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Chinese Journal of Mechanical Engineering 2013年第6期26卷 1267-1276页

作者： ZHANG Lei WANG Songling HU Chenxing ZHANG qian Key Laboratory of Condition Monitoring and Control for Power Plant Equipment of ministry of education North China Electric Power University

Current studies of fan performance optimization mainly focus on two aspects： one is to improve the blade profile, and another is only to consider the influence of single impeller structural parameter on fan performance. However, there are few studies on the comprehensive effect of the key parameters such as blade number, exit stagger angle of blade and the impeller outlet width on the fan performance. The G4-73 backward centrifugal fan widely used in power plants is selected as the research object. Based on orthogonal design and BP neural network, a model for predicting the centrifugal fan performance parameters is established, and the maximum relative errors of the total pressure and efficiency are 0.974% and 0.333%, respectively. Multi-objective optimization of total pressure and efficiency of the fan is conducted with genetic algorithm, and the optimum combination of impeller structural parameters is proposed. The optimized parameters of blade number, exit stagger angle of blade and the impeller outlet width are seperately 14, 43.9~, and 2. cm. The experiments on centrifugal fan performance and noise are conducted before and after the installation of the new impeller The experimental results show that with the new impeller, the total pressure of fan increases significantly in total range of the flow rate, and the fan efficiency is improved when the relative flow is above 75%, also the high efficiency area is broadened. Additionally, in 65% -100% relative flow, the fan noise is reduced. Under the design operating condition, total pressure and efficiency of the fan are improved by 6.91% and 0.5%, respectively. This research sheds light on the considering of comprehensive effect of impeller structrual parameters on fan performance, and a new impeller can be designed to satisfy the engineering demand such as energy-saving, noise reduction or solving air pressure insufficiency for power plants.

关键词： centrifugal fan impeller structural parameters optimization experimental investigation

RESEARCH ON THE PROFESSIONAL TRAINING OF PHYSICAL education TEACHERS

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RESEARCH ON THE PROFESSIONAL TRAINING OF PHYSICAL EDUCATION ...

Assessing the effects of vegetation and precipitation on soil erosion in the Three-River Headwaters Region of the Qinghai-Tibet Plateau,China

第五届全国青年体育科学学术会议、第二届中国体育博士高层论坛

作者： ying Zhang weihong wang (Capital Institute of Physical education,Beijing,China)

Introduction To improving the faculty of physical education, teachers should strengthen their own professional level. The professional training for teachers includes three phases: pre-vocation phrase, career phrase and on-the-job phrase. This paper discuss the professional training for physical education teachers during the career phrase and on-the-job phrase.

关键词： RESEARCH ON THE PROFESSIONAL TRAINING OF PHYSICAL education TEACHERS

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Journal of Arid Land 2020年第5期12卷 865-886页

作者： HE qian DAI Xiao'ai CHEN Shiqi College of Earth Science Chengdu University of TechnologyChengdu 610059China College of Foreign Languages and Cultures Chengdu University of TechnologyChengdu 610059China

Soil erosion in the Three-River Headwaters Region(TRHR)of the Qinghai-Tibet Plateau in China has a significant impact on local economic development and ecological *** and precipitation are considered to be the main factors for the variation in soil ***,it is a big challenge to analyze the impacts of precipitation and vegetation respectively as well as their combined effects on soil erosion from the pixel *** assess the influences of vegetation and precipitation on the variation of soil erosion from 2.05 to 2.15,we employed the Revised Universal Soil Loss Equation(RUSLE)model to evaluate soil erosion in the TRHR,and then developed a method using the Logarithmic Mean Divisia Index model(LMDI)which can exponentially decompose the influencing factors,to calculate the contribution values of the vegetation cover factor(C factor)and the rainfall erosivity factor(R factor)to the variation of soil erosion from the pixel *** general,soil erosion in the TRHR was alleviated from 2.05 to 2.15,of which about 54.95%of the area where soil erosion decreased was caused by the combined effects of the C factor and the R factor,and 41.31%was caused by the change in the R *** were relatively few areas with increased soil erosion modulus,of which 64.10%of the area where soil erosion increased was caused by the change in the C factor,and 2..88%was caused by the combined effects of the C factor and the R ***,the combined effects of the C factor and the R factor were regarded as the main driving force for the decrease of soil erosion,while the C factor was the dominant factor for the increase of soil *** area with decreased soil erosion caused by the C factor(12.10×10^3 km^2.was larger than the area with increased soil erosion caused by the C factor(8.30×10^3 km^2.,which indicated that vegetation had a positive effect on soil *** study generally put forward a new method for quantitative assessment of the impacts

关键词： soil erosion vegetation cover rainfall erosivity Logarithmic Mean Divisia Index quantitative assessment Three-River Headwaters Region

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新时代师德建设的“情本体”路向

当代教育与文化 2024年第5期16卷 89-97页

作者：于影丽江楠新疆师范大学教育科学学院新疆乌鲁木齐830054

新时代教师队伍高质量发展对师德提出了新要求,要使教师发自内心、自觉自愿约束自己的行为。但在工具理性的过度干预下,外在规范主导下的师德建设范式忽视了教师的情感诉求。李泽厚的“情本体”理论是其主体性理论的核心要义,它强调以... 详细信息

新时代教师队伍高质量发展对师德提出了新要求,要使教师发自内心、自觉自愿约束自己的行为。但在工具理性的过度干预下,外在规范主导下的师德建设范式忽视了教师的情感诉求。李泽厚的“情本体”理论是其主体性理论的核心要义,它强调以人世情感为人生的根本依托、归宿之意,对促进情感性“内驱逻辑”的师德建设,使教师成为审美情感的主体,提升师德主体性具有重要的指导作用。“情本体”视域下的师德建设以师德情感为根本依托,师德情感的主体性、直觉性、多元动态性、愉悦性、时间性可克服外驱逻辑下师德发展的局限,并且满足新时代教师队伍建设的需要。在实践中,通过增强师德培养的新鲜感以及美感,鼓励教师充实个人生活,关怀教师的情感,增强教师道德敏感性,关注教师道德成长的时间性等方式来完善新时代师德建设。

关键词：新时代师德建设 “情本体” 情感理性

Ellipsoidal bounding set-membership identification approach for robust fault diagnosis with application to mobile robots

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Journal of Systems Engineering and Electronics 2017年第5期28卷 986-995页

作者： Bo Zhou Kun qian Xudong Ma Xianzhong Dai School of Automation Southeast University Key Laboratory of Measurement and Control of Complex Systems of Engineering Ministry of Education

A robust fault diagnosis approach is developed by incorporating a set-membership identification (SMI) method. A class of systems with linear models in the form of fault related parameters is investigated, with model uncertainties and parameter variations taken into account explicitly and treated as bounded errors. An ellipsoid bounding set-membership identification algorithm is proposed to propagate bounded uncertainties rigorously and the guaranteed feasible set of faults parameters enveloping true parameter values is given. Faults arised from abrupt parameter variations can be detected and isolated on-line by consistency check between predicted and observed parameter sets obtained in the identification procedure. The proposed approach provides the improved robustness with its ability to distinguish real faults from model uncertainties, which comes with the inherent guaranteed robustness of the set-membership framework. Efforts are also made in this work to balance between conservativeness and computation complexity of the overall algorithm. Simulation results for the mobile robot with several slipping faults scenarios demonstrate the correctness of the proposed approach for faults detection and isolation (FDI).

关键词： set-membership identification fault diagnosis fault detection and isolation (FDI) bounded error mobile robot