In the real-time scheduling theory,schedulability and synchronization analyses are used to evaluate scheduling algorithms and real-time locking protocols,respectively,and the empirical synthesis experiment is one of t...In the real-time scheduling theory,schedulability and synchronization analyses are used to evaluate scheduling algorithms and real-time locking protocols,respectively,and the empirical synthesis experiment is one of the major methods to compare the performance of such analyses.However,since many sophisticated techniques have been adopted to improve the analytical accuracy,the implementation of such analyses and experiments is often time-consuming.This paper proposes a schedulability experiment toolkit for multiprocessor real-time systems(SET-MRTS),which provides a framework with infrastructures to implement the schedulability and synchronization analyses and the deployment of empirical synthesis experiments.Besides,with well-designed peripheral components for the input and output,experiments can be conducted easily and flexibly on SET-MRTS.This demonstration further proves the effectiveness of SET-MRTS in both functionality and availability.展开更多
The thesis researches effects of Cooperative Learning on senior students’English reading character and reveals the significance and effectiveness of Cooperative Learning cultivating students’English reading characte...The thesis researches effects of Cooperative Learning on senior students’English reading character and reveals the significance and effectiveness of Cooperative Learning cultivating students’English reading character.English reading character comprises reading habits and reading experience,therefore this thesis analyzes students’reading behaviors,frequency,reading volume,and reading attitude as well as reading interest and self-assessment from these two dimensions.Then it sums up relations between these dimensions and provides some implications for how senior teachers utilize Cooperative Learning to cultivate students’English reading character.展开更多
针对高压气枪在阵列中使用时的同步性能要求,介绍了气枪震源系统的组成原理、同步控制原理和影响同步性能的因素;详细阐述了气枪阵列中激发电路对电磁阀激发时刻的控制,及在可变延时控制电路的干预下实现高压气枪阵列的同步控制方法;提...针对高压气枪在阵列中使用时的同步性能要求,介绍了气枪震源系统的组成原理、同步控制原理和影响同步性能的因素;详细阐述了气枪阵列中激发电路对电磁阀激发时刻的控制,及在可变延时控制电路的干预下实现高压气枪阵列的同步控制方法;提出了在实验室条件下开展同步性能测试的方法,并以容积150 in 3高压气枪为例,组建了实验室条件下的高压气枪同步性能测试系统,得到连续20组测试数据,通过分析得到其激发的时间偏差在±0.498 ms内,符合勘探同步性需求,激发一致性较好,气枪工作稳定,可用于气枪阵列的组建。展开更多
基金supported by the National Natural Science Foundation of China under Grant No.61802052the Fundamental Research Funds for the Central Universities under Grant No.A030202063008085the China Postdoctoral Science Foundation Funded Project under Grant No.2017M612947。
文摘In the real-time scheduling theory,schedulability and synchronization analyses are used to evaluate scheduling algorithms and real-time locking protocols,respectively,and the empirical synthesis experiment is one of the major methods to compare the performance of such analyses.However,since many sophisticated techniques have been adopted to improve the analytical accuracy,the implementation of such analyses and experiments is often time-consuming.This paper proposes a schedulability experiment toolkit for multiprocessor real-time systems(SET-MRTS),which provides a framework with infrastructures to implement the schedulability and synchronization analyses and the deployment of empirical synthesis experiments.Besides,with well-designed peripheral components for the input and output,experiments can be conducted easily and flexibly on SET-MRTS.This demonstration further proves the effectiveness of SET-MRTS in both functionality and availability.
文摘The thesis researches effects of Cooperative Learning on senior students’English reading character and reveals the significance and effectiveness of Cooperative Learning cultivating students’English reading character.English reading character comprises reading habits and reading experience,therefore this thesis analyzes students’reading behaviors,frequency,reading volume,and reading attitude as well as reading interest and self-assessment from these two dimensions.Then it sums up relations between these dimensions and provides some implications for how senior teachers utilize Cooperative Learning to cultivate students’English reading character.
文摘针对高压气枪在阵列中使用时的同步性能要求,介绍了气枪震源系统的组成原理、同步控制原理和影响同步性能的因素;详细阐述了气枪阵列中激发电路对电磁阀激发时刻的控制,及在可变延时控制电路的干预下实现高压气枪阵列的同步控制方法;提出了在实验室条件下开展同步性能测试的方法,并以容积150 in 3高压气枪为例,组建了实验室条件下的高压气枪同步性能测试系统,得到连续20组测试数据,通过分析得到其激发的时间偏差在±0.498 ms内,符合勘探同步性需求,激发一致性较好,气枪工作稳定,可用于气枪阵列的组建。
