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| 1 | Metal Free Mono- and 2,3-Bis-sulfenylation of Indoles in Water with Sodium Sulfinates as a Sulfur Source显示文摘 | Changqing Liu Jian Fan Manyi Wu Jiahui Chen Yiming Zhao Meihua Xie | 2018 | Chinese Journal of Chemistry2018，36，9： | 2 |
| 2 | A Novel Pulse Density Modulation with Semi-bridgeless Active Rectifier in Inductive Power Transfer System for Rail Vehicle显示文摘In this paper,a novel pulse density modulation(PDM)with semi-bridgeless active rectifier(S-BAR)in inductive power transfer(IPT)system for rail vehicle is proposed.It is to reduce switching losses of the active rectifier in pickups.In the control method,the insulated-gate bipolar transistors(IGBTs)in the S-BAR are controlled by synchronous PDM signals,so that zero-voltage switching(ZVS)and zero-current switching(ZCS)can be achieved in the whole output power range.The output power is regulated by changing the pulse density(PD)of the S-BAR since the it is almost linear proportional with the PD in high quality factor of pickup side.The communication device between the primary side and pickup side is not necessary anymore.The detailed theoretical analyses of the PDM method are provided,and its advantages are shown in a 7.5kW IPT prototype for rail vehicle.The experimental results are presented to verify the analysis and demonstrate the performance.The overall efficiency of the system by PDM control is 74.2%which is improved by 4%compared with phase shift(PS)control at light load. | Manyi Fan Liming Shi Zhenggang Yin Yaohua Li | 2017 | CES Transactions on Electrical Machines and Systems2017，1，4： | 0 |
| 3 | A Survey of System Software Techniques for Emerging NVMs显示文摘The challenges of power consumption and memory capacity of computers have driven rapid development on non-volatile memories(NVM).NVMs are generally faster than traditional secondary storage devices,write persistently and many offer byte addressing capability.Despite these appealing features,NVMs are difficult to manage and program,which makes it hard to use them as a drop-in replacement for dynamic random-access memory(DRAM).Instead,a majority of modern systems use NVMs through the IO and the file system abstractions.Hiding NVMs under these interfaces poses challenges on how to exploit the new hardware’s performance potential in the existing system software framework.In this article,we survey the key technical issues arisen in this area and introduce several recently developed systems each of which offers novel solutions around these issues. | BAI Tongxin DONG Zhenjiang CAI Manyi FAN Xiaopeng XU Chengzhong LIU Lixia | 2017 | ZTE Communications2017，15，1： | 0 |
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