Test paper evaluation is an important work for the management of tests,which results are significant bases for scientific summation of teaching and learning.Taking an English test paper of high students'monthly ex...Test paper evaluation is an important work for the management of tests,which results are significant bases for scientific summation of teaching and learning.Taking an English test paper of high students'monthly examination as the object,it focuses on the interpretation of SPSS output concerning item and whole quantitative analysis of papers.By analyzing and evaluating the papers,it can be a feedback for teachers to check the students'progress and adjust their teaching process.展开更多
This paper is to evaluate an oral test paper for the middle school graduates of Jiangsu Province according to its validity and reliability.And then the advice on how to improve the reliability is given.
The aim of this study is to conduct the validity analysis of the test paper of the academic English reading and writing course referring to the freshmen of non-English majors in a university of Technology in Shanghai....The aim of this study is to conduct the validity analysis of the test paper of the academic English reading and writing course referring to the freshmen of non-English majors in a university of Technology in Shanghai.The validity is mainly analyzed from these three aspects:the content and construct validity,the reaction process,and the internal structure of the test paper.And the principles of language assessment in the design of the test paper are given in this study.The validity study was also conducted in a class with 42 freshmen,and the scores of them were analyzed through the internal correlation coefficient from Statistic Package for Social Science(SPSS)25.0.Finally,the validity of the test paper is concluded.展开更多
This paper presents an automated testing network system for paper laboratory based on CAN bus. The overall architecture, hardware interface and software function are discussed in detail. It is indicated through experi...This paper presents an automated testing network system for paper laboratory based on CAN bus. The overall architecture, hardware interface and software function are discussed in detail. It is indicated through experiment that the system can collect, analyze and store the test results from the various measuring instruments in the paper lab automatically. The simple, reliable, low-cost measuring automation system will have a prosperous application in the future paper industry.展开更多
In order to realize the auto-generation of clothing paper pattern making and reduce the reliance on the experience of clothing pattern makers,by simulating the experience of the clothing pattern maker through back pro...In order to realize the auto-generation of clothing paper pattern making and reduce the reliance on the experience of clothing pattern makers,by simulating the experience of the clothing pattern maker through back propagation(BP)neural network,400 children’s body measurements are collected and drawn into the clothing paper pattern,and the children’s body measurements and the pattern sizes generated through the children’s clothing structure design rules are imported into MATLAB neural network toolbox and a neural network model is established to automatically become the predicted pattern size.Then the parametric mathematical model of children’s clothing paper pattern is established and the children’s body measurements is imported into Auto-CAD parametric function to generate children’s clothing paper pattern automatically.The experimental interface and the virtual try-on interface are demonstrated and their effects are evaluated.The results show that the production rate of clothing paper patterns is improved by the auto-generation method,which is of positive significance to the intelligent production of clothing enterprises.展开更多
Purpose-Express freight transportation is in rapid development currently.Owing to the higher speed of express freight train,the deformation of the bridge deck worsens the railway line condition under the action of win...Purpose-Express freight transportation is in rapid development currently.Owing to the higher speed of express freight train,the deformation of the bridge deck worsens the railway line condition under the action of wind and train moving load when the train runs over a long-span bridge.Besides,the blunt car body of vehicle has poor aerodynamic characteristics,bringing a greater challenge on the running stability in the crosswind.Design/methodology/approach-In this study,the aerodynamic force coefficients of express freight vehicles on the bridge are measured by scale model wind tunnel test.The dynamic model of the train-long-span steel truss bridge coupling system is established,and the dynamic response as well as the running safety of vehicle are evaluated.Findings-The results show that wind speed has a significant influence on running safety,which is mainly reflected in the over-limitation of wheel unloading rate.The wind speed limit decreases with train speed,and it reduces to 18.83 m/s when the train speed is 160 km/h.Originality/value-This study deepens the theoretical understanding of the interaction between vehicles and bridges and proposes new methods for analyzing similar engineering problems.It also provides a new theoretical basis for the safety assessment of express freight trains.展开更多
目的探讨新医科背景下中国大学大规模在线开放课程(massive open online courses,MOOC)在线平台在《职业卫生与职业医学》教学中的应用价值。方法2020年3月—2021年3月,选择南昌大学公共卫生学院2016年、2017年统招预防医学专业学生为...目的探讨新医科背景下中国大学大规模在线开放课程(massive open online courses,MOOC)在线平台在《职业卫生与职业医学》教学中的应用价值。方法2020年3月—2021年3月,选择南昌大学公共卫生学院2016年、2017年统招预防医学专业学生为研究对象,共181名。将2016级84名学生分为线上组,接受《职业卫生与职业医学》的线上教学;2017级97名学生分为线下组,接受该课程的线下教学。将所有学生考试成绩录入试卷分析系统,在试卷质量分析基础上比较2组学生的考试成绩。结果2组学生期末考试试卷质量基本处于同等水平,试题分布及难易度较合理,差异无统计学意义(P>0.05),具有可比性,且2组学生成绩分布均呈现正态分布。进一步统计结果表明,线上组学生期末考试成绩高于线下组,差异有统计学意义(P<0.05)。线上组及格率高于线下组,差异有统计学意义(P<0.05)。结论在新医科背景下,基于中国大学MOOC在线平台的线上教学模式能明显提高《职业卫生与职业医学》课程的教学效果,这为新时代深入开展该课程的线上教学改革提供参考和思路。展开更多
文摘Test paper evaluation is an important work for the management of tests,which results are significant bases for scientific summation of teaching and learning.Taking an English test paper of high students'monthly examination as the object,it focuses on the interpretation of SPSS output concerning item and whole quantitative analysis of papers.By analyzing and evaluating the papers,it can be a feedback for teachers to check the students'progress and adjust their teaching process.
文摘This paper is to evaluate an oral test paper for the middle school graduates of Jiangsu Province according to its validity and reliability.And then the advice on how to improve the reliability is given.
文摘The aim of this study is to conduct the validity analysis of the test paper of the academic English reading and writing course referring to the freshmen of non-English majors in a university of Technology in Shanghai.The validity is mainly analyzed from these three aspects:the content and construct validity,the reaction process,and the internal structure of the test paper.And the principles of language assessment in the design of the test paper are given in this study.The validity study was also conducted in a class with 42 freshmen,and the scores of them were analyzed through the internal correlation coefficient from Statistic Package for Social Science(SPSS)25.0.Finally,the validity of the test paper is concluded.
文摘This paper presents an automated testing network system for paper laboratory based on CAN bus. The overall architecture, hardware interface and software function are discussed in detail. It is indicated through experiment that the system can collect, analyze and store the test results from the various measuring instruments in the paper lab automatically. The simple, reliable, low-cost measuring automation system will have a prosperous application in the future paper industry.
文摘In order to realize the auto-generation of clothing paper pattern making and reduce the reliance on the experience of clothing pattern makers,by simulating the experience of the clothing pattern maker through back propagation(BP)neural network,400 children’s body measurements are collected and drawn into the clothing paper pattern,and the children’s body measurements and the pattern sizes generated through the children’s clothing structure design rules are imported into MATLAB neural network toolbox and a neural network model is established to automatically become the predicted pattern size.Then the parametric mathematical model of children’s clothing paper pattern is established and the children’s body measurements is imported into Auto-CAD parametric function to generate children’s clothing paper pattern automatically.The experimental interface and the virtual try-on interface are demonstrated and their effects are evaluated.The results show that the production rate of clothing paper patterns is improved by the auto-generation method,which is of positive significance to the intelligent production of clothing enterprises.
基金supported by the Research Major Project of China Academy of Railway Sciences Group Co.,Ltd(Grant No.2021YJ270)the China National Railway Group Science and Technology Program(Grant No.N2022T001).
文摘Purpose-Express freight transportation is in rapid development currently.Owing to the higher speed of express freight train,the deformation of the bridge deck worsens the railway line condition under the action of wind and train moving load when the train runs over a long-span bridge.Besides,the blunt car body of vehicle has poor aerodynamic characteristics,bringing a greater challenge on the running stability in the crosswind.Design/methodology/approach-In this study,the aerodynamic force coefficients of express freight vehicles on the bridge are measured by scale model wind tunnel test.The dynamic model of the train-long-span steel truss bridge coupling system is established,and the dynamic response as well as the running safety of vehicle are evaluated.Findings-The results show that wind speed has a significant influence on running safety,which is mainly reflected in the over-limitation of wheel unloading rate.The wind speed limit decreases with train speed,and it reduces to 18.83 m/s when the train speed is 160 km/h.Originality/value-This study deepens the theoretical understanding of the interaction between vehicles and bridges and proposes new methods for analyzing similar engineering problems.It also provides a new theoretical basis for the safety assessment of express freight trains.
文摘目的探讨新医科背景下中国大学大规模在线开放课程(massive open online courses,MOOC)在线平台在《职业卫生与职业医学》教学中的应用价值。方法2020年3月—2021年3月,选择南昌大学公共卫生学院2016年、2017年统招预防医学专业学生为研究对象,共181名。将2016级84名学生分为线上组,接受《职业卫生与职业医学》的线上教学;2017级97名学生分为线下组,接受该课程的线下教学。将所有学生考试成绩录入试卷分析系统,在试卷质量分析基础上比较2组学生的考试成绩。结果2组学生期末考试试卷质量基本处于同等水平,试题分布及难易度较合理,差异无统计学意义(P>0.05),具有可比性,且2组学生成绩分布均呈现正态分布。进一步统计结果表明,线上组学生期末考试成绩高于线下组,差异有统计学意义(P<0.05)。线上组及格率高于线下组,差异有统计学意义(P<0.05)。结论在新医科背景下,基于中国大学MOOC在线平台的线上教学模式能明显提高《职业卫生与职业医学》课程的教学效果,这为新时代深入开展该课程的线上教学改革提供参考和思路。
