Post-hospital brain injury rehabilitation programs are afforded limited time to reduce chronic disability resulting from acquired brain injury. Therefore, the purpose of this study was to identify deficit areas result...Post-hospital brain injury rehabilitation programs are afforded limited time to reduce chronic disability resulting from acquired brain injury. Therefore, the purpose of this study was to identify deficit areas resulting from acquired brain injury that have the greatest impact on functional outcomes to enable greater efficiency in rehabilitation programming. Study participants were 1717 persons with acquired brain injury treated in residential post-hospital rehabilitation programs. Participants were assessed at admission and discharge on the MPAI-4. Functional status at discharge was evaluated based on T-scores derived from MPAI-4 discharge participation index items: Initiation, self-care and residence. The data base of 1717 was randomly divided into two subsets. Items from admission Abilities Index and select person variables were entered into stepwise multiple regression on subset one and then in a hierarchical multiple regression on subset two. Rash analysis demonstrated satisfactory construct validity and internal consistency of admission and discharge MPAI-4 evaluations (Person reliability > 0.90, Item reliability = 0.99). Both regression analyses revealed that Mobility and Novel Problem Solving accounted for 40% of the variance in functional outcome, p < 0.001. Acquired brain injury results in a myriad of cognitive and physical impairments. Of the many possible deficits, the greatest gains in overall functional outcomes may be achieved by allocating additional treatments aimed at reducing disability in mobility and novel problem solving.展开更多
分析了IPv6(Internet Protocol Version 6)与IPv4(Internet Protocol Version 4)各自的特点以及两者之间的区别和联系,介绍了多播技术、双栈技术、隧道技术、协议转换技术等4种过渡技术,并讨论了各种技术的工作原理。在IPv6与IPv4的互...分析了IPv6(Internet Protocol Version 6)与IPv4(Internet Protocol Version 4)各自的特点以及两者之间的区别和联系,介绍了多播技术、双栈技术、隧道技术、协议转换技术等4种过渡技术,并讨论了各种技术的工作原理。在IPv6与IPv4的互联通信中,尽可能地保留了IPv4,使其在IPv6环境中有效运行,从而保证了数据包的安全性。实例验证结果表明,所提出的转换协议技术实现了2个协议之间的互联通信。展开更多
文章以临夏现代职业学院校园网互联网协议版本6(Internet Protocol version 6,IPv6)升级改造为例,介绍互联网协议版本4(Internet Protocol version 4,IPv4)校园网现状和存在的问题,比较IPv4与IPv6的优缺点,结合IPv6迁移改造的双协议栈...文章以临夏现代职业学院校园网互联网协议版本6(Internet Protocol version 6,IPv6)升级改造为例,介绍互联网协议版本4(Internet Protocol version 4,IPv4)校园网现状和存在的问题,比较IPv4与IPv6的优缺点,结合IPv6迁移改造的双协议栈、隧道技术,探索规划阶段性升级改造IPv6的建设方案,重点讨论IPv4/IPv6双栈校园网技术实现。展开更多
针对当前基于深度神经网络的目标检测往往存在计算复杂度高、对硬件要求苛刻、难以在嵌入式平台和移动智能设备上运行且运行速率低等问题,提出一种基于YOLOv4(You Only Look Once Version4)的轻量化混合神经网络。此混合网络主干特征提...针对当前基于深度神经网络的目标检测往往存在计算复杂度高、对硬件要求苛刻、难以在嵌入式平台和移动智能设备上运行且运行速率低等问题,提出一种基于YOLOv4(You Only Look Once Version4)的轻量化混合神经网络。此混合网络主干特征提取网络采用轻量级MobileNeXt网络模型,并使用改进后RFB(Receptive Field Block)模型来增强特征提取网络,进而增大感受野;引入通道注意力机制SE(Squeeze-and-Excitation)模块,过滤筛选出高质量信息,使整个网络模型对特征提取更加高效。实验结果表明,在PASCAL VOC 2007数据集上,基于YOLOv4的轻量化混合神经网络模型大小仅占20.6 MB,很大程度上降低了原YOLOv4模型参数量,mAP(mean Average Precision)达到82.51%,帧处理速率为29.7 frame/s。,有较好的检测效果和较强的鲁棒性。展开更多
文摘Post-hospital brain injury rehabilitation programs are afforded limited time to reduce chronic disability resulting from acquired brain injury. Therefore, the purpose of this study was to identify deficit areas resulting from acquired brain injury that have the greatest impact on functional outcomes to enable greater efficiency in rehabilitation programming. Study participants were 1717 persons with acquired brain injury treated in residential post-hospital rehabilitation programs. Participants were assessed at admission and discharge on the MPAI-4. Functional status at discharge was evaluated based on T-scores derived from MPAI-4 discharge participation index items: Initiation, self-care and residence. The data base of 1717 was randomly divided into two subsets. Items from admission Abilities Index and select person variables were entered into stepwise multiple regression on subset one and then in a hierarchical multiple regression on subset two. Rash analysis demonstrated satisfactory construct validity and internal consistency of admission and discharge MPAI-4 evaluations (Person reliability > 0.90, Item reliability = 0.99). Both regression analyses revealed that Mobility and Novel Problem Solving accounted for 40% of the variance in functional outcome, p < 0.001. Acquired brain injury results in a myriad of cognitive and physical impairments. Of the many possible deficits, the greatest gains in overall functional outcomes may be achieved by allocating additional treatments aimed at reducing disability in mobility and novel problem solving.
文摘分析了IPv6(Internet Protocol Version 6)与IPv4(Internet Protocol Version 4)各自的特点以及两者之间的区别和联系,介绍了多播技术、双栈技术、隧道技术、协议转换技术等4种过渡技术,并讨论了各种技术的工作原理。在IPv6与IPv4的互联通信中,尽可能地保留了IPv4,使其在IPv6环境中有效运行,从而保证了数据包的安全性。实例验证结果表明,所提出的转换协议技术实现了2个协议之间的互联通信。
文摘文章以临夏现代职业学院校园网互联网协议版本6(Internet Protocol version 6,IPv6)升级改造为例,介绍互联网协议版本4(Internet Protocol version 4,IPv4)校园网现状和存在的问题,比较IPv4与IPv6的优缺点,结合IPv6迁移改造的双协议栈、隧道技术,探索规划阶段性升级改造IPv6的建设方案,重点讨论IPv4/IPv6双栈校园网技术实现。
文摘针对当前基于深度神经网络的目标检测往往存在计算复杂度高、对硬件要求苛刻、难以在嵌入式平台和移动智能设备上运行且运行速率低等问题,提出一种基于YOLOv4(You Only Look Once Version4)的轻量化混合神经网络。此混合网络主干特征提取网络采用轻量级MobileNeXt网络模型,并使用改进后RFB(Receptive Field Block)模型来增强特征提取网络,进而增大感受野;引入通道注意力机制SE(Squeeze-and-Excitation)模块,过滤筛选出高质量信息,使整个网络模型对特征提取更加高效。实验结果表明,在PASCAL VOC 2007数据集上,基于YOLOv4的轻量化混合神经网络模型大小仅占20.6 MB,很大程度上降低了原YOLOv4模型参数量,mAP(mean Average Precision)达到82.51%,帧处理速率为29.7 frame/s。,有较好的检测效果和较强的鲁棒性。
