2025年4月29日,IBIS Worldwide在英国伦敦宣布,2025年IBIS全球峰会(IBIS Global Summit 2025)的日程已正式发布,这标志着这场事故车维修行业最具影响力的全球会议进入筹备新阶段。2025年6月24日-26日,来自全球事故车维修领域的高层领导...2025年4月29日,IBIS Worldwide在英国伦敦宣布,2025年IBIS全球峰会(IBIS Global Summit 2025)的日程已正式发布,这标志着这场事故车维修行业最具影响力的全球会议进入筹备新阶段。2025年6月24日-26日,来自全球事故车维修领域的高层领导与决策者将齐聚伊斯坦布尔的博斯普鲁斯瑞士酒店,展开为期2天的高端洞察分享、结构化讨论与战略性人脉拓展。展开更多
针对高速数字视频系统印刷电路板(PCB)设计中由于传输线的高频特性导致的信号完整性问题,通过输入/输出缓冲器信息规范(input/output buffer information specification,IBIS)模型对TI公司提供的TMS320DM642芯片扩展的外部存储器的反射...针对高速数字视频系统印刷电路板(PCB)设计中由于传输线的高频特性导致的信号完整性问题,通过输入/输出缓冲器信息规范(input/output buffer information specification,IBIS)模型对TI公司提供的TMS320DM642芯片扩展的外部存储器的反射仿真以及对同步动态随机存储器(SDRAM)的时序仿真来优化数字视频系统的PCB的设计.结果表明,使用这些设计方案可以有效地提高信号完整性,从而增强高速数字视频系统的可靠性.展开更多
介绍了在移动微机系统设计中引入IB IS(Inpu t/O u tpu t Bu ffer In form ation Spec ification)模型的重要性和必要性,以及IB IS模型在移动微机系统时钟设计中的应用方法,给出了时钟信号仿真的原理与波形.仿真结果表明,IB IS模型在微...介绍了在移动微机系统设计中引入IB IS(Inpu t/O u tpu t Bu ffer In form ation Spec ification)模型的重要性和必要性,以及IB IS模型在移动微机系统时钟设计中的应用方法,给出了时钟信号仿真的原理与波形.仿真结果表明,IB IS模型在微机系统时钟设计、错误预防中所起的重要作用,可以缩短微机系统设计周期,提高设计的成功率.展开更多
The Crested Ibis(Nipponia Nippon) is endemic to Qinling Mountains of China and was once abundant over vast areas of north-east of Asia habitat.During the 20th century,however,the population declined greatly in numbers...The Crested Ibis(Nipponia Nippon) is endemic to Qinling Mountains of China and was once abundant over vast areas of north-east of Asia habitat.During the 20th century,however,the population declined greatly in numbers.Habitat quality used to be the main threat to this species but recent actions by the government and wildlife protection organizations have brought this under control.With the establishment of Crested Ibis Nature Reserve in China,conflicts between socio-economic development and Crested Ibis conservation have become more acute.How do we deal with the relation between Crested Ibis conservation and community development? In this study,the Crested Ibis Nature Reserve co-management model namely "companies + farmers + Nature Reserve" model is proposed and evaluated with demonstration investigation methods,including continuous six-year fixed-site socio-economic development data of surrounding community,company sales revenue data and monitored data of Crested Ibis Nature Reserve.The results show that farmers' income and conservation awareness increased greatly from 2003 to 2008;company sales revenue has increased by about 20% annually in the recent years;management level has noticeably improved in Nature Reserve,the scope of Crested Ibis habitat has expanded 50 hm2;chemical composition of habitat reduced year after year;and the number of Crested Ibis had been growing annually.At the end,the success of the model is evaluated,and problems in implementation of the model are discussed from the following aspects:management system,co-management concept,economic base of partners,marketing mechanism,technical capacity and so on.展开更多
文摘2025年4月29日,IBIS Worldwide在英国伦敦宣布,2025年IBIS全球峰会(IBIS Global Summit 2025)的日程已正式发布,这标志着这场事故车维修行业最具影响力的全球会议进入筹备新阶段。2025年6月24日-26日,来自全球事故车维修领域的高层领导与决策者将齐聚伊斯坦布尔的博斯普鲁斯瑞士酒店,展开为期2天的高端洞察分享、结构化讨论与战略性人脉拓展。
文摘针对高速数字视频系统印刷电路板(PCB)设计中由于传输线的高频特性导致的信号完整性问题,通过输入/输出缓冲器信息规范(input/output buffer information specification,IBIS)模型对TI公司提供的TMS320DM642芯片扩展的外部存储器的反射仿真以及对同步动态随机存储器(SDRAM)的时序仿真来优化数字视频系统的PCB的设计.结果表明,使用这些设计方案可以有效地提高信号完整性,从而增强高速数字视频系统的可靠性.
文摘介绍了在移动微机系统设计中引入IB IS(Inpu t/O u tpu t Bu ffer In form ation Spec ification)模型的重要性和必要性,以及IB IS模型在移动微机系统时钟设计中的应用方法,给出了时钟信号仿真的原理与波形.仿真结果表明,IB IS模型在微机系统时钟设计、错误预防中所起的重要作用,可以缩短微机系统设计周期,提高设计的成功率.
基金supported by State Forestry Administration (China) Research and Development Plan(Grant NoSD0639)the Community Comanagement Project of WWF-China
文摘The Crested Ibis(Nipponia Nippon) is endemic to Qinling Mountains of China and was once abundant over vast areas of north-east of Asia habitat.During the 20th century,however,the population declined greatly in numbers.Habitat quality used to be the main threat to this species but recent actions by the government and wildlife protection organizations have brought this under control.With the establishment of Crested Ibis Nature Reserve in China,conflicts between socio-economic development and Crested Ibis conservation have become more acute.How do we deal with the relation between Crested Ibis conservation and community development? In this study,the Crested Ibis Nature Reserve co-management model namely "companies + farmers + Nature Reserve" model is proposed and evaluated with demonstration investigation methods,including continuous six-year fixed-site socio-economic development data of surrounding community,company sales revenue data and monitored data of Crested Ibis Nature Reserve.The results show that farmers' income and conservation awareness increased greatly from 2003 to 2008;company sales revenue has increased by about 20% annually in the recent years;management level has noticeably improved in Nature Reserve,the scope of Crested Ibis habitat has expanded 50 hm2;chemical composition of habitat reduced year after year;and the number of Crested Ibis had been growing annually.At the end,the success of the model is evaluated,and problems in implementation of the model are discussed from the following aspects:management system,co-management concept,economic base of partners,marketing mechanism,technical capacity and so on.
