In this paper, we study the control problem of adiabatic decoherence in a three-level atom. We will find the decoupling bang-bang group for various configurations, including the V configuration and the cascade type of...In this paper, we study the control problem of adiabatic decoherence in a three-level atom. We will find the decoupling bang-bang group for various configurations, including the V configuration and the cascade type of three-levelatom subjected to adiabatic decoherence. We also give the programs to design a sequence of periodic twinborn pulses to suppress the decoherence.展开更多
本文主要介绍了低压配电系统中 B 类和 C 类防雷保护的区别、作用和避雷器产品的一些选型方法,介绍了一种新型火花间隙避雷器的工作原理,对不同特性的 B 类保护避雷器作了较多的分析和对比,使广大读者对 B 类和 C 类保护避雷器有一个全...本文主要介绍了低压配电系统中 B 类和 C 类防雷保护的区别、作用和避雷器产品的一些选型方法,介绍了一种新型火花间隙避雷器的工作原理,对不同特性的 B 类保护避雷器作了较多的分析和对比,使广大读者对 B 类和 C 类保护避雷器有一个全面的认识和了解。展开更多
In the traditional method, the software quality is measured by various metrics of the software, such as decoupling level(DL), which can be used to predict software defect. However, DL, which treats all the files equal...In the traditional method, the software quality is measured by various metrics of the software, such as decoupling level(DL), which can be used to predict software defect. However, DL, which treats all the files equally, has not taken file importance into consideration. Therefore, a novel software quality metric, named as improved decoupling level(IDL), based on the importance of documents was proposed. First, the PageRank algorithm was used to calculate the importance of files to obtain the weights of the dependencies, and then defect prediction models was established by combining the software scale, dependencies, scores and software defects to assess the software quality. Compared to most existing module-based software quality evaluation methods, IDL has similar or even superior performance in the prediction of software quality. The results indicate that IDL measures the importance of each file in the software more accurately by combining the PageRank algorithm in DL, which indirectly reflects the quality of software by predicting the bug information in software and improves the accuracy of prediction result of software bug information.展开更多
文摘In this paper, we study the control problem of adiabatic decoherence in a three-level atom. We will find the decoupling bang-bang group for various configurations, including the V configuration and the cascade type of three-levelatom subjected to adiabatic decoherence. We also give the programs to design a sequence of periodic twinborn pulses to suppress the decoherence.
基金supported by the National Natural Science Foundation of China (61272082).
文摘In the traditional method, the software quality is measured by various metrics of the software, such as decoupling level(DL), which can be used to predict software defect. However, DL, which treats all the files equally, has not taken file importance into consideration. Therefore, a novel software quality metric, named as improved decoupling level(IDL), based on the importance of documents was proposed. First, the PageRank algorithm was used to calculate the importance of files to obtain the weights of the dependencies, and then defect prediction models was established by combining the software scale, dependencies, scores and software defects to assess the software quality. Compared to most existing module-based software quality evaluation methods, IDL has similar or even superior performance in the prediction of software quality. The results indicate that IDL measures the importance of each file in the software more accurately by combining the PageRank algorithm in DL, which indirectly reflects the quality of software by predicting the bug information in software and improves the accuracy of prediction result of software bug information.
