With the advent of Industry 4.0, smart construction sites have seen significant development in China. However, accidents involving digitized tower cranes continue to be a persistent issue. Among the contributing facto...With the advent of Industry 4.0, smart construction sites have seen significant development in China. However, accidents involving digitized tower cranes continue to be a persistent issue. Among the contributing factors, human unsafe behavior stands out as a primary cause for these incidents. This study aims to assess the human reliability of tower crane operations on smart construction sites. To proactively enhance safety measures, the research employs text mining techniques (TF-IDF-Truncated SVD-Complement NB) to identify patterns of human errors among tower crane operators. Building upon the SHEL model, the study categorizes behavioral factors affecting human reliability in the man-machine interface, leading to the establishment of the Performance Shaping Factors (PSFs) system. Furthermore, the research constructs an error impact indicator system for the intelligent construction site tower crane operator interface. Using the DEMATEL method, it analyzes the significance of various factors influencing human errors in tower crane operations. Additionally, the ISM-MICMAC method is applied to unveil the hierarchical relationships and driving-dependent connections among these influencing factors. The findings indicate that personal state, operating procedures, and physical environment directly impact human errors, while personal capability, technological environment, and one fundamental organizational management factor contribute indirectly. .展开更多
目的:探讨采用自制顺解剖结构塔形垫结合夹板石膏固定治疗不稳定型第2-5掌骨骨折,分析治疗后的效果,以期为临床治疗方法提供依据。方法:回顾性分析自2019年1月至2022年12月采用自制顺解剖结构塔形垫结合夹板石膏固定治疗不稳定型第2-5...目的:探讨采用自制顺解剖结构塔形垫结合夹板石膏固定治疗不稳定型第2-5掌骨骨折,分析治疗后的效果,以期为临床治疗方法提供依据。方法:回顾性分析自2019年1月至2022年12月采用自制顺解剖结构塔形垫结合夹板石膏固定治疗不稳定型第2-5掌骨骨折患者共98例,其中男74例,女24例,年龄19~63(41.58±7.23)岁。观察治疗效果,采用总主动活动度(total active movement,TAM)评分标准对掌指关节活动功能评价,总结并发症发生及骨折愈合情况。结果:所有患者获得随访,时间1~5(3.45±1.03)个月。解剖对位患者75例,解除固定仍维持解剖对位患者68例;功能对位患者23例,解除固定仍维持功能对位患者20例;复位后发生移位患者10例。骨折愈合时间(5.78±1.14)周,骨折愈合良好,未出现角畸形或旋转畸形。治疗后3个月采用TAM评分标准对患者的手功能进行评价,患者的掌指关节背伸活动度(10.72±1.35)°与屈曲活动度(83.19±4.08)°,优于治疗前(8.25±0.68)°、(70.35±2.36)°,差异有统计学意义(P<0.05)。98例患者最终手TAM评测结果:优92例,良5例,可1例。结论:针对不稳定型第2-5掌骨骨折患者,实施自制顺解剖结构塔形垫固定治疗的效果确切。展开更多
文摘With the advent of Industry 4.0, smart construction sites have seen significant development in China. However, accidents involving digitized tower cranes continue to be a persistent issue. Among the contributing factors, human unsafe behavior stands out as a primary cause for these incidents. This study aims to assess the human reliability of tower crane operations on smart construction sites. To proactively enhance safety measures, the research employs text mining techniques (TF-IDF-Truncated SVD-Complement NB) to identify patterns of human errors among tower crane operators. Building upon the SHEL model, the study categorizes behavioral factors affecting human reliability in the man-machine interface, leading to the establishment of the Performance Shaping Factors (PSFs) system. Furthermore, the research constructs an error impact indicator system for the intelligent construction site tower crane operator interface. Using the DEMATEL method, it analyzes the significance of various factors influencing human errors in tower crane operations. Additionally, the ISM-MICMAC method is applied to unveil the hierarchical relationships and driving-dependent connections among these influencing factors. The findings indicate that personal state, operating procedures, and physical environment directly impact human errors, while personal capability, technological environment, and one fundamental organizational management factor contribute indirectly. .
文摘目的:探讨采用自制顺解剖结构塔形垫结合夹板石膏固定治疗不稳定型第2-5掌骨骨折,分析治疗后的效果,以期为临床治疗方法提供依据。方法:回顾性分析自2019年1月至2022年12月采用自制顺解剖结构塔形垫结合夹板石膏固定治疗不稳定型第2-5掌骨骨折患者共98例,其中男74例,女24例,年龄19~63(41.58±7.23)岁。观察治疗效果,采用总主动活动度(total active movement,TAM)评分标准对掌指关节活动功能评价,总结并发症发生及骨折愈合情况。结果:所有患者获得随访,时间1~5(3.45±1.03)个月。解剖对位患者75例,解除固定仍维持解剖对位患者68例;功能对位患者23例,解除固定仍维持功能对位患者20例;复位后发生移位患者10例。骨折愈合时间(5.78±1.14)周,骨折愈合良好,未出现角畸形或旋转畸形。治疗后3个月采用TAM评分标准对患者的手功能进行评价,患者的掌指关节背伸活动度(10.72±1.35)°与屈曲活动度(83.19±4.08)°,优于治疗前(8.25±0.68)°、(70.35±2.36)°,差异有统计学意义(P<0.05)。98例患者最终手TAM评测结果:优92例,良5例,可1例。结论:针对不稳定型第2-5掌骨骨折患者,实施自制顺解剖结构塔形垫固定治疗的效果确切。
