摘要：Wearable devices have great application potential in the next generation of smart portable electronics,especially in the fields of medical monitoring,soft robotics,artificial intelligence,and human-machine *** flexible strain sensors are key components of wearable ***,existing piezoelectric flexible strain sensors have certain limitations in weak signal monitoring due to their large modulus and low *** solve this problem,the concept of Kirigami(paper-cutting)was introduced in this study to design the sensor *** comparing the Kirigami structures of different basic structures,the serpentine structure was determined as the basic configuration of the *** serpentine structure not only provides excellent tensile properties,but also significantly improves the sensitivity of the sensor,which performs well in monitoring weak *** this basis,the adhesion properties of the flexible sensor were analyzed and tested,and the optimal ratio of the substrate was selected for *** addition,a low-cost and rapid prototyping process for stretchable patches was established in this *** this technology,we prepared the sensor device and tested its ***,we successfully developed a flexible sensor with a sensitivity of 0.128 mV/μɛand verified its feasibility for wrist joint motion monitoring *** result opens up new avenues for the recovery care of tenosynovitis patients after surgery.

摘要：太赫兹调制技术凭借其独特的功能特性,在安全检测、医疗成像和下一代6G通信等多个领域展现出巨大的应用潜力和价值。其核心在于对太赫兹波的振幅、相位、偏振等关键参数的精准调制并按照目标领域对波形进行赋形,以满足多样化应用需求。本文全面梳理了基于人工电磁微结构的太赫兹调制技术最新研究进展,深入剖析了调制机理,并阐明了关键设计策略与方法。特别地,重点介绍了微加工工艺与THz功能材料(如相变材料、石墨烯、钙钛矿和液晶等)相结合的太赫兹调制器件在调制深度、响应速度和稳定性方面取得的最新研究成果与突破,为太赫兹调制技术走向实际应用提供一定的技术支撑。最后,客观分析了微结构太赫兹调制器件所面临的主要挑战与限制因素,并基于当前研究趋势,对太赫兹调制技术未来发展方向做出了展望,旨在为未来研究与实践提供方向性参考。

摘要：为了研究裂纹对邮轮舷窗结构产生的影响,该文首先使用有限元软件复现了其他研究中关于舷窗结构角隅处裂纹扩展的实验,验证了研究方法的可行性;然后构建了2类舷窗结构模型,利用裂纹扩展软件探讨了舷窗结构角隅处裂纹在不同因素作用下的扩展特性,并计算了含裂纹舷窗结构的抗压极限强度;最后从断裂力学角度,依托改进的Paris公式提出了舷窗结构的极限状态函数,使用蒙特卡罗法计算了不同条件下结构的失效概率与可靠性指标。研究结果对邮轮设计有一定的参考意义。

摘要：温度测量是液化天然气接收站项目中过程控制的重点,而插入式温度计在温度测量中发挥着至关重要的作用。在温度计套管测温原理基础上,结合LNG接收站温度计套管使用情况对插入式温度计的套管类型、连接方式、插入长度以及套管材料选型进行了探讨,说明了不同工况下的选型原则。并结合某LNG项目应用实例,对比了几种常见材质的套管在不同介质中的腐蚀情况,从而确定最优的温度计套管选型方案,为后续LNG接收站工程的温度计选型安装提供参考。