悬挂管领是海底管道终端设备舷侧下放安装过程中最重要的固定设备。为了保证其强度能满足各工况需求,以南海某深水项目用J-collar为例,基于ASME BPVC VIII div.2弹塑性分析,使用荷载和阻力系数设计(LRFD)方法,对其强度分析过程进行了研...悬挂管领是海底管道终端设备舷侧下放安装过程中最重要的固定设备。为了保证其强度能满足各工况需求,以南海某深水项目用J-collar为例,基于ASME BPVC VIII div.2弹塑性分析,使用荷载和阻力系数设计(LRFD)方法,对其强度分析过程进行了研究,并对其制造过程中的质量控制要点进行了分析。通过工程项目的成功实施,验证了可行性,为类似项目提供参考。展开更多
为落实教育部“以人工智能赋能专业内涵建设”的目标,推动高校本科专业的科学化、智能化建设,在专业知识图谱概念的基础上,深入研究了专业知识图谱的构建,并以长安大学交通运输专业知识图谱为例进行了实现。通过采用德尔菲法构建长安大...为落实教育部“以人工智能赋能专业内涵建设”的目标,推动高校本科专业的科学化、智能化建设,在专业知识图谱概念的基础上,深入研究了专业知识图谱的构建,并以长安大学交通运输专业知识图谱为例进行了实现。通过采用德尔菲法构建长安大学交通运输专业知识体系,经多轮专家函询确定五大领域及二十二个知识模块;采用自底向上和自顶向下相结合的方法构建专业知识图谱,利用Neo4j图形数据库进行实现,展示知识模块及其关系,为专业建设提供参考。In order to implement the goal of “empowering professional connotation construction with artificial intelligence” set by the Ministry of Education and promote the scientific and intelligent construction of undergraduate majors in universities, based on the concept of professional knowledge graph, in-depth research has been conducted on the construction of major knowledge graph, and the knowledge graph of transportation major at Chang’an University has been implemented as an example. By using the Delphi method to construct the knowledge system of transportation major at Chang’an University, five major fields and twenty-two knowledge modules were determined through multiple rounds of expert inquiries;we use a combination of bottom-up and top-down methods to construct a major knowledge graph, and implement it using the Neo4j graph database to display knowledge modules and their relationships, providing a reference for professional development.展开更多
目的:探讨代谢综合征(MS)对泌尿系结石术后留置双J管患者附管结石发生风险的影响。方法:选取2022年10月至2023年10月本院行泌尿系结石术后留置双J管的79例患者作为研究对象,根据代谢指标检查结果将患者分为MS组(58例)与非MS组(21例),收...目的:探讨代谢综合征(MS)对泌尿系结石术后留置双J管患者附管结石发生风险的影响。方法:选取2022年10月至2023年10月本院行泌尿系结石术后留置双J管的79例患者作为研究对象,根据代谢指标检查结果将患者分为MS组(58例)与非MS组(21例),收集患者一般资料、实验室指标,返院拔除双J管时确认患者术后附管结石发生情况,采用单因素、多因素Logistic回归分析附管结石发生危险因素。结果:MS组高血压、糖尿病、高脂血症、吸烟史的患者占比体重指数及拔管时的SBP、FBG、UA、TC、TG、LDL-C、hs-CRP水平均高于非MS组,HDL-C低于非MS组(P P P P P Objective: To investigate the effect of metabolic syndrome (MS) on the risk of tubular stones in patients with postoperative urinary calculi after indentation of double J tubes. Methods: From October 2022 to October 2023, 79 patients who underwent urinary calculi surgery with double J tubes were selected as the study objects. According to the results of metabolic indexes, the patients were divided into MS group (58 cases) and non-MS group (21 cases). General data and laboratory indexes of the patients were collected. After the double-J tube was removed, the occurrence of tubular stones was confirmed, and the risk factors of tubular stones were analyzed by univariate and multivariate Logistic regression. Results: The proportion of patients with hypertension, diabetes, hyperlipidemia and smoking history in MS group and the levels of SBP, FBG, UA, TC, TG, LDL-C and hs-CRP at extubation were higher than those in non-MS group, and HDL-C was lower than those in non-MS group (P P P P P < 0.05). Conclusion: MS is closely related to the formation of tubular stones after double-J tube surgery, and can be used as an independent predictor of the occurrence of postoperative stones. In addition, long catheter indwelling time, presence of urinary protein and high level of FBG, UA and hs-CRP during extubation are risk factors for tubular stones. Early life style intervention in high-risk people with MS can help reduce the risk of morbidity.展开更多
文摘悬挂管领是海底管道终端设备舷侧下放安装过程中最重要的固定设备。为了保证其强度能满足各工况需求,以南海某深水项目用J-collar为例,基于ASME BPVC VIII div.2弹塑性分析,使用荷载和阻力系数设计(LRFD)方法,对其强度分析过程进行了研究,并对其制造过程中的质量控制要点进行了分析。通过工程项目的成功实施,验证了可行性,为类似项目提供参考。
文摘为落实教育部“以人工智能赋能专业内涵建设”的目标,推动高校本科专业的科学化、智能化建设,在专业知识图谱概念的基础上,深入研究了专业知识图谱的构建,并以长安大学交通运输专业知识图谱为例进行了实现。通过采用德尔菲法构建长安大学交通运输专业知识体系,经多轮专家函询确定五大领域及二十二个知识模块;采用自底向上和自顶向下相结合的方法构建专业知识图谱,利用Neo4j图形数据库进行实现,展示知识模块及其关系,为专业建设提供参考。In order to implement the goal of “empowering professional connotation construction with artificial intelligence” set by the Ministry of Education and promote the scientific and intelligent construction of undergraduate majors in universities, based on the concept of professional knowledge graph, in-depth research has been conducted on the construction of major knowledge graph, and the knowledge graph of transportation major at Chang’an University has been implemented as an example. By using the Delphi method to construct the knowledge system of transportation major at Chang’an University, five major fields and twenty-two knowledge modules were determined through multiple rounds of expert inquiries;we use a combination of bottom-up and top-down methods to construct a major knowledge graph, and implement it using the Neo4j graph database to display knowledge modules and their relationships, providing a reference for professional development.
文摘目的:探讨代谢综合征(MS)对泌尿系结石术后留置双J管患者附管结石发生风险的影响。方法:选取2022年10月至2023年10月本院行泌尿系结石术后留置双J管的79例患者作为研究对象,根据代谢指标检查结果将患者分为MS组(58例)与非MS组(21例),收集患者一般资料、实验室指标,返院拔除双J管时确认患者术后附管结石发生情况,采用单因素、多因素Logistic回归分析附管结石发生危险因素。结果:MS组高血压、糖尿病、高脂血症、吸烟史的患者占比体重指数及拔管时的SBP、FBG、UA、TC、TG、LDL-C、hs-CRP水平均高于非MS组,HDL-C低于非MS组(P P P P P Objective: To investigate the effect of metabolic syndrome (MS) on the risk of tubular stones in patients with postoperative urinary calculi after indentation of double J tubes. Methods: From October 2022 to October 2023, 79 patients who underwent urinary calculi surgery with double J tubes were selected as the study objects. According to the results of metabolic indexes, the patients were divided into MS group (58 cases) and non-MS group (21 cases). General data and laboratory indexes of the patients were collected. After the double-J tube was removed, the occurrence of tubular stones was confirmed, and the risk factors of tubular stones were analyzed by univariate and multivariate Logistic regression. Results: The proportion of patients with hypertension, diabetes, hyperlipidemia and smoking history in MS group and the levels of SBP, FBG, UA, TC, TG, LDL-C and hs-CRP at extubation were higher than those in non-MS group, and HDL-C was lower than those in non-MS group (P P P P P < 0.05). Conclusion: MS is closely related to the formation of tubular stones after double-J tube surgery, and can be used as an independent predictor of the occurrence of postoperative stones. In addition, long catheter indwelling time, presence of urinary protein and high level of FBG, UA and hs-CRP during extubation are risk factors for tubular stones. Early life style intervention in high-risk people with MS can help reduce the risk of morbidity.
