ID	原文	译文
57618	针对膝关节与假体空间坐标系不一致的问题，提出了一种基于主成分分析( PCA) 与迭代最近点( ICP) 算法相结合的三段式配准方法.	In view of inconsistency between knee joint and prosthesis in spatial coordinate system，a three-stage registration method based on principal component analysis ( PCA) and iterative closest point ( ICP) algorithm is proposed，which adopts PCA and ICP twice.
57619	采用 PCA 结合两次 ICP 算法的配准策略，对膝关节与关节假体的点云数据进行 PCA 配准处理，然后对得到的初始配准结果采用 ICP 算法进行调整，最后对调整好姿态的点云数据再次进行 ICP 配准，从而将其空间坐标轴调整到一致.	Firstly，the point cloud data of knee joint and joint prosthesis is registered by PCA. then ICP algorithm is used to adjust the initial registration results. Finally，ICP registration is carried out again for the adjusted point cloud data，so as to adjust its spatial coordinate axis to be consistent.
57620	实验结果表明，三段式配准方法相较于其他算法，可在保持较高配准精度的同时缩短配准时间.	Experiments show that compared with other algorithms，the three- stage registration method can keep high registration accuracy and shorten the registration time.
57621	针对空间相关信道下存在干扰机的多用户大规模多输入多输出系统，研究了基站仅配置低精度模数转换器( ADC) 的系统频谱效率性能.	Aiming at multi-user massive multi-input multi-output systems with jammer under spatial cor- relation channel，where the system spectral efficiency performance of the base station with low-resolu- tion analog-to-digital converters ( ADCs) is studied.
57622	通过结合指数( Toeplitz) 相关模型建立空间相关信道，并利用加性量化噪声模型和最大比合并算法，推导出系统频谱效率的闭合表达式.	Establishing spatial correlation channel by combi- ning exponential Toeplitz correlation models，utilizing the additive quantization noise model and the maximum ratio combination algorithm，a closed expression of the spectral efficiency is derived.
57623	基于此，进一步对理想和非理想信道状态信息下的系统频谱效率进行比较分析.	The system spectral efficiency under ideal /non-ideal channel state information is analyzed thereafter.
57624	仿真结果表明，随着用户发送功率和 ADC 精度的增加，频谱效率将出现饱和效应;当合法用户发送功率小于干扰机发送功率时，干扰机对系统的影响占主导作用;当合法用户发送功率大于干扰机发送功率时，能够有效地抑制干扰机对系统的影响.	Simulation shows that the spectral efficiency will have a saturation effect as the transmit power of the user and the resolution of the ADC increase; when the transmit power of the user is less than the transmit power of the jammer，the influence of the jammer on the system is dominant; when the transmit power of the user is greater than the transmit power of the jammer，it can effectively suppress the influence of the jammer on the system.
57625	对绿色车辆路径问题的发展形势进行了分析.	the development situation of green vehicle routing problem in recent years is analyzed.
57626	阐述了绿色车辆路径问题的起源，梳理了绿色车辆路径问题的研究热点，将其划分为最小化燃料消耗的绿色车辆路径问题、考虑污染路径的绿色车辆路径问题、结合新能源车的绿色车辆路径问题这 3 个研究的主要阶段，指出了绿色车辆路径问题研究的不足和未来可能的研究方向.	The origin of the green vehicle routing problem is described focused on the research of hot topics of green vehicle routing problem in the form of teamwork. Minimizing fuel consumption，considering the pollution path，and combining with new energy vehicles are the three main stages of green vehicle routing problem. The article points out the shortcomings of current research on green vehicle routing problem and directions of possible future research.
57627	能量受限协作中继网络频谱利用率低，生存周期短，无线信道开放性所带来的物理层安全受到威胁，对此，将功率信标辅助射频能量采集技术、认知无线电技术和协作中继网络相结合，构建了一种新的中继节点分散布置的能量收集 2 跳认知协作中继网络;	Aiming at the problems of low spectrum utilization，short lifetime and the physical layer secur- ity caused by the openness of the wireless channel of energy-constrained cooperative relay network，a new two hop cognitive cooperative relay network with distributed relay nodes is constructed by combining pow- er beacon assisted ＲF energy collection technology，cognitive radio technology and cooperative relay net- work.