摘要：For an autonomous system to perform maintenance tasks in a networking device or a radio base station(RBS), it has to deal with a series of technological challenges ranging from identifying hardware-related problems to manipulating connectors. This paper describes the development of a robot maintenance system dedicated to detect and resolve faulty links caused by unplugged or poorly connected cables. Although the maintenance system relies on four subsystems, we significantly focus on our low-cost and efficient custom gripper solution developed to handle RJ45 Ethernet connectors. To examine our gripper, we conducted three experiments. First, a qualitative questionnaire was submitted to 30 users in the case of the teleoperated scenario of the gripper attached to a robotic arm. Similarly, we also tested the automatic operation mode. The results showed that our system is reliable and delivers a highly efficient maintenance tool in both teleoperated and autonomous operation modes. The practical experiment containing the removal or unplugging of connectors demonstrated our gripper′s ability to adequately handle these, whereas the feedback from the questionnaire pointed to a positive user experience. The automatic test assessed the gripper′s robustness against the continuous operation.

摘要：本研究中，流动注射系统使用双重微型柱，柱中分别填充SiO2／Al2O3／TiO2和硅胶（SiO2／AAPTMS），这种硅胶经[3-（2-乙二胺基）丙基]三甲氧基硅烷改性，双重微型柱用于废水样品中Cr（III）和Cr（VI）连续富集，并使用火焰原子吸收光谱法（FAAS）检测其含量。运用二级全析因设计（24）和期望函数优化本试验系统中的变量。富集条件（流速***），pH5．0，缓冲液浓度（醋酸缓冲液）0．01molL^-1，洗脱液（2．5molL-1HCl）流速***^-1，在此优化条件下，Cr（III）和Cr（VI）的检出限分别为0．66μgL^-1和0．27μgL^-1。Cr（III）和Cr（VI）的富集因子（PF）、消耗指数（CI）、浓缩效率（CE）分别为17．62／32．98，1．13／0．6mL，6．2／11．54min。该方法可用于检测水样（自来水、湖泊水、矿泉水、人工唾液）和注射性溶液（生理血清、注射用水、葡萄糖生理溶液）中的Cr（III）和Cr（Ⅵ）。通过分析标准参比样（水中微量元素），确定该方法的精度。