Objective To investigate the outcome of revised super-long down-regulation protocol （RSDP） for in vitro fertilization / intracytoplasmic sperm injection-embryo transfer （1VF/1CS1-ET） in the special infertile pat...Objective To investigate the outcome of revised super-long down-regulation protocol （RSDP） for in vitro fertilization / intracytoplasmic sperm injection-embryo transfer （1VF/1CS1-ET） in the special infertile patients with repeated implantation failure （RIF）. Methods Patients with RIF were divided into RSDP group and routine long downregulation protocol （RLDP） group. In RSDP group, gonadotropin releasing hormone agonist （GnRHa） was injected intramuscularly by 2.5 mg in mid-luteal phase for the ftrst time and 1.25 mg after 28 d; gonadotropin （Gn） was started 14 d later after the second GnRHa dose. IVF/ICSI-ET was performed according to the routine procedure. The clinical outcomes of RSDP group were compared with those of RLDP group. Results In RSDP group, the number of retrieved oocytes and valid embryos was significantly lower （P〈0.05）; there were no significant differences about fertilization rate （P〉0. 05）; both good-quality embryo rate and implantation rate were significantly increased （P〈0. 005）; clinical pregnancy rate was obviously improved （P〈0. 05）, as compared with RLDP group.Conclusion RSDP can improve the IVF outcomes significantly in RIF patients.展开更多
随着移动互联网的快速发展,实时场景类移动应用(APP,APPLICATION)都具有实时消息处理和分发能力;而移动互联网会出现高延时、高丢包率的弱网环境,严重影响用户的使用体验;分析了当前实时消息处理系统的一般网络架构和传输控制协议(TCP,T...随着移动互联网的快速发展,实时场景类移动应用(APP,APPLICATION)都具有实时消息处理和分发能力;而移动互联网会出现高延时、高丢包率的弱网环境,严重影响用户的使用体验;分析了当前实时消息处理系统的一般网络架构和传输控制协议(TCP,Transmission Control Protocol)的性能瓶颈;进一步分析了快速UDP互联网连接(QUIC,Quick UDP Internet Connections)协议的机制和特性;提出并实现了以QUIC协议为基础的实时消息处理系统;最后在模拟弱网环境下对QUIC和TCP协议进行对比性能测试,测试结果表明基于QUIC协议的实现方案在弱网环境下性能有较明显的优势。展开更多
在燃气计量领域,传统燃气仪表通信功耗高、电源管理策略粗放,导致电池续航能力弱,需频繁更换电池,不仅增加维护成本,还影响用户正常使用体验。对此,从主控系统低功耗控制、远距离无线电(Long Range Radio,LoRa)通信协议间歇发送、构建...在燃气计量领域,传统燃气仪表通信功耗高、电源管理策略粗放,导致电池续航能力弱,需频繁更换电池,不仅增加维护成本,还影响用户正常使用体验。对此,从主控系统低功耗控制、远距离无线电(Long Range Radio,LoRa)通信协议间歇发送、构建功耗状态切换控制模型3个环节,提出一种基于LoRa通信的燃气仪表低功耗电源管理方案。仿真实验表明,该方案可大幅降低燃气仪表功耗,延长电池续航,提升通信可靠性,为智能燃气系统稳定运行提供有效的电源管理方案。展开更多
研究无线通信技术在电力变压器能效等级现场诊断中的应用,提出一种结合低功耗无线传感网络与边缘计算的智能诊断方法。通过远距离无线电(Long Range Radio,LoRa)通信协议实现电力变压器运行参数的高效传输,并利用深度学习模型对能效等...研究无线通信技术在电力变压器能效等级现场诊断中的应用,提出一种结合低功耗无线传感网络与边缘计算的智能诊断方法。通过远距离无线电(Long Range Radio,LoRa)通信协议实现电力变压器运行参数的高效传输,并利用深度学习模型对能效等级进行实时评估与分类。实验结果表明,该方法在复杂电网环境中表现出优越的诊断性能,诊断准确率达到98.7%,平均响应时间为1.2 s,显著优于传统人工测量技术和振动信号分析技术,为电力变压器的智能化管理提供可靠的技术支持。展开更多
文摘Objective To investigate the outcome of revised super-long down-regulation protocol （RSDP） for in vitro fertilization / intracytoplasmic sperm injection-embryo transfer （1VF/1CS1-ET） in the special infertile patients with repeated implantation failure （RIF）. Methods Patients with RIF were divided into RSDP group and routine long downregulation protocol （RLDP） group. In RSDP group, gonadotropin releasing hormone agonist （GnRHa） was injected intramuscularly by 2.5 mg in mid-luteal phase for the ftrst time and 1.25 mg after 28 d; gonadotropin （Gn） was started 14 d later after the second GnRHa dose. IVF/ICSI-ET was performed according to the routine procedure. The clinical outcomes of RSDP group were compared with those of RLDP group. Results In RSDP group, the number of retrieved oocytes and valid embryos was significantly lower （P〈0.05）; there were no significant differences about fertilization rate （P〉0. 05）; both good-quality embryo rate and implantation rate were significantly increased （P〈0. 005）; clinical pregnancy rate was obviously improved （P〈0. 05）, as compared with RLDP group.Conclusion RSDP can improve the IVF outcomes significantly in RIF patients.
文摘随着移动互联网的快速发展,实时场景类移动应用(APP,APPLICATION)都具有实时消息处理和分发能力;而移动互联网会出现高延时、高丢包率的弱网环境,严重影响用户的使用体验;分析了当前实时消息处理系统的一般网络架构和传输控制协议(TCP,Transmission Control Protocol)的性能瓶颈;进一步分析了快速UDP互联网连接(QUIC,Quick UDP Internet Connections)协议的机制和特性;提出并实现了以QUIC协议为基础的实时消息处理系统;最后在模拟弱网环境下对QUIC和TCP协议进行对比性能测试,测试结果表明基于QUIC协议的实现方案在弱网环境下性能有较明显的优势。
文摘在燃气计量领域,传统燃气仪表通信功耗高、电源管理策略粗放,导致电池续航能力弱,需频繁更换电池,不仅增加维护成本,还影响用户正常使用体验。对此,从主控系统低功耗控制、远距离无线电(Long Range Radio,LoRa)通信协议间歇发送、构建功耗状态切换控制模型3个环节,提出一种基于LoRa通信的燃气仪表低功耗电源管理方案。仿真实验表明,该方案可大幅降低燃气仪表功耗,延长电池续航,提升通信可靠性,为智能燃气系统稳定运行提供有效的电源管理方案。
文摘研究无线通信技术在电力变压器能效等级现场诊断中的应用,提出一种结合低功耗无线传感网络与边缘计算的智能诊断方法。通过远距离无线电(Long Range Radio,LoRa)通信协议实现电力变压器运行参数的高效传输,并利用深度学习模型对能效等级进行实时评估与分类。实验结果表明,该方法在复杂电网环境中表现出优越的诊断性能,诊断准确率达到98.7%,平均响应时间为1.2 s,显著优于传统人工测量技术和振动信号分析技术,为电力变压器的智能化管理提供可靠的技术支持。
