近年来,随着能源互联网与电力物联网的快速发展,国家电网有限公司各业务系统对通信系统传输带宽要求越来越大,2013年建成的单波10 G大容量骨干光传输系统(Optical Transport Network,OTN)已无法满足未来几年的需求。目前单波100 G OTN...近年来,随着能源互联网与电力物联网的快速发展,国家电网有限公司各业务系统对通信系统传输带宽要求越来越大,2013年建成的单波10 G大容量骨干光传输系统(Optical Transport Network,OTN)已无法满足未来几年的需求。目前单波100 G OTN系统技术日趋成熟,但10 G/100 G的混传测试与应用较少,文章介绍了10 G/100 G混传过程中遇到的技术问题,并通过实验测试和数据分析,得出了相关结论和解决方案,对后续国家电网有限公司大容量骨干光传输系统从单波10 G网络向单波100 G网络平滑升级具有重要的参考价值。展开更多
Background Shanghai HIgh repetition rate XFEL aNd Extreme light facility(SHINE)is a free electron laser facility,which will provide research methods such as high-resolution imaging for many disciplines.The pixel detec...Background Shanghai HIgh repetition rate XFEL aNd Extreme light facility(SHINE)is a free electron laser facility,which will provide research methods such as high-resolution imaging for many disciplines.The pixel detector,which is in the pre-research stage,is one of most important components of the facility.Purpose The current target data rate of the pixel detector in SHINE is about 100 GB/s.Considering the high data rate,the 10G/40G Ethernet firmware for pixel detector in SHINE was developed on field programmable gate array(FPGA),which will lead to more integrated electronic design and make the system smaller.Methods The firmware converts the media independent interfaces(MII)of 10G and 40G Ethernet to each other and uses a polling method to process data from four 10G Ethernet channels.Based on the above methods,the firmware can merge four 10G Ethernet channels into one 40G Ethernet channel.Results and Conclusion The firmware successfully transmits data between the data source and the server.The bandwidth of the firmware is 36.66 Gbps when the computer equipped with 10G network interface controller(NIC)is set as the data source.Through joint test with the 1G/10G hub and SiTCP,the bandwidth of firmware is 36.3 Gbps.And 40 SiTCP nodes whose system clock frequency can exceed 125 MHz can be used as the data source of the firmware,which will provide a variety of technical solutions for pixel detector.展开更多
Let （Ω,∑,μ） be a complete probability space and let X be a Banach space. We introduce the notion of scalar equi-convergence in measure which being applied to sequences of Pettis integrable functions generates a n...Let （Ω,∑,μ） be a complete probability space and let X be a Banach space. We introduce the notion of scalar equi-convergence in measure which being applied to sequences of Pettis integrable functions generates a new convergence theorem. We Mso obtain a Vituli type Z-convergence theorem for Pettis integrals where Z is an ideal on N. Keywords Convergence theorems for integrals, Pettis integral, scalar equi-convergence in measure, Z-convergence展开更多
基金This work was supported by Xie Jialin Fund,Insti-tute of High Energy Physics,Chinese Academy of Sciences.
文摘Background Shanghai HIgh repetition rate XFEL aNd Extreme light facility(SHINE)is a free electron laser facility,which will provide research methods such as high-resolution imaging for many disciplines.The pixel detector,which is in the pre-research stage,is one of most important components of the facility.Purpose The current target data rate of the pixel detector in SHINE is about 100 GB/s.Considering the high data rate,the 10G/40G Ethernet firmware for pixel detector in SHINE was developed on field programmable gate array(FPGA),which will lead to more integrated electronic design and make the system smaller.Methods The firmware converts the media independent interfaces(MII)of 10G and 40G Ethernet to each other and uses a polling method to process data from four 10G Ethernet channels.Based on the above methods,the firmware can merge four 10G Ethernet channels into one 40G Ethernet channel.Results and Conclusion The firmware successfully transmits data between the data source and the server.The bandwidth of the firmware is 36.66 Gbps when the computer equipped with 10G network interface controller(NIC)is set as the data source.Through joint test with the 1G/10G hub and SiTCP,the bandwidth of firmware is 36.3 Gbps.And 40 SiTCP nodes whose system clock frequency can exceed 125 MHz can be used as the data source of the firmware,which will provide a variety of technical solutions for pixel detector.
基金Supported by the Polish Ministry of Science and Higher Education(Grant Nos.N N201 414939 for M.Balcerzak,N N201 416139 for K.Musial)
文摘Let （Ω,∑,μ） be a complete probability space and let X be a Banach space. We introduce the notion of scalar equi-convergence in measure which being applied to sequences of Pettis integrable functions generates a new convergence theorem. We Mso obtain a Vituli type Z-convergence theorem for Pettis integrals where Z is an ideal on N. Keywords Convergence theorems for integrals, Pettis integral, scalar equi-convergence in measure, Z-convergence
