Agile Supply Chain Management (ASCM) is an important topic and has received much attention recently. ASCM is a new management technology. Agile Supply Chain Management Decision Support System (ASCM DSS) is presented. ...Agile Supply Chain Management (ASCM) is an important topic and has received much attention recently. ASCM is a new management technology. Agile Supply Chain Management Decision Support System (ASCM DSS) is presented. Firstly, agile supply chain management technology is introduced. Secondly a decision support system for agile supply chain management is proposed. Then, the implementation of ASCM DSS in enterprise is discussed. Finally, a fuzzy intelligence decision making process in Shanghai Turbine Generator Company (STGC) is described in detail.展开更多
The rough set-genetic support vector machine(SVM) model is applied to supply chain performance evaluation. First, the rough set theory is used to remove the redundant factors that affect the performance evaluation of ...The rough set-genetic support vector machine(SVM) model is applied to supply chain performance evaluation. First, the rough set theory is used to remove the redundant factors that affect the performance evaluation of supply chain to obtain the core influencing factors. Then the support vector machine is used to extract the core influencing factors to predict the level of supply chain performance. In the process of SVM classification, the genetic algorithm is used to optimize the parameters of the SVM algorithm to obtain the best parameter model, and then the supply chain performance evaluation level is predicted. Finally, an example is used to predict this model, and compared with the result of using only rough set-support vector machine to predict. The results show that the method of rough set-genetic support vector machine can predict the level of supply chain performance more accurately and the prediction result is more realistic, which is a scientific and feasible method.展开更多
共识机制是区块链技术的重要组成部分,针对委托权益证明(delegated proof of stake,DPoS)共识机制中对恶意节点不能及时有效处理的问题,提出了一种基于支持向量机的DPoS共识机制改进方案(SVM-DPoS)。首先构建基于SVM的节点判别模型,通...共识机制是区块链技术的重要组成部分,针对委托权益证明(delegated proof of stake,DPoS)共识机制中对恶意节点不能及时有效处理的问题,提出了一种基于支持向量机的DPoS共识机制改进方案(SVM-DPoS)。首先构建基于SVM的节点判别模型,通过训练好的模型分析节点的行为动机,根据判别结果及时剔除恶意节点;其次基于固定协商出块顺序优化传统算法的出块流程,提升出块效率,进一步提高了整个区块链网络的运行效率。在公开数据集上的实验结果表明,与已有的几种方法相比,改进后的共识机制能够快速剔除恶意节点,不仅维护了系统稳定性,而且增强了对恶意行为的防范能力,从而在保障区块链网络正常运行的同时,提高了整体共识的安全性。展开更多
目的探讨家庭社会支持对甲状腺微波消融术后患者睡眠质量和负性情绪的链式中介作用。方法前瞻性方便选取2023年7—12月南宁市第二人民医院接受甲状腺微波消融术治疗的157例患者作为研究对象,术后采用家庭支持自评量表(Perceived Social ...目的探讨家庭社会支持对甲状腺微波消融术后患者睡眠质量和负性情绪的链式中介作用。方法前瞻性方便选取2023年7—12月南宁市第二人民医院接受甲状腺微波消融术治疗的157例患者作为研究对象,术后采用家庭支持自评量表(Perceived Social Support From Family,PSS-Fa)、社会支持评定量表(Social Support Rating Scale,SSRS)、匹兹堡睡眠质量指数(Pittsburgh Sleep Quality Index,PSQI)、焦虑自评量表(Self-rating Anxiety Scale,SAS)与抑郁自评量表(Self-rating Depression Scale,SDS)为调查工具。分析患者家庭支持水平、社会支持水平、睡眠质量及负性情绪之间的相关性,并分析家庭社会支持对甲状腺微波消融术后患者睡眠质量和负性情绪的链式中介作用。结果最终回收有效问卷153份。不同年龄、婚姻状况、文化程度、消融范围甲状腺微波消融术后患者的PSS-Fa评分、SSRS评分、PSQI评分、SAS评分、SDS评分比较,差异有统计学意义(P均<0.05);不同性别的甲状腺微波消融术后患者的PSQI评分比较,差异有统计学意义(P<0.05),PSS-Fa评分、SSRS评分、SAS评分、SDS评分比较,差异无统计学意义(P均>0.05)。患者PSQI总分与PSS-Fa、SSRS总分呈负相关,与负性情绪评分呈正相关;PSS-Fa总分与SSRS总分呈正相关,与负性情绪评分呈负相关;SSRS总分与负性情绪评分呈负相关。“睡眠质量→家庭支持→负性情绪”路径的间接效应为0.436,bootstrap 95%CI为0.143~0.739;“睡眠质量→社会支持→负性情绪”路径的间接效应为0.261,bootstrap 95%CI为0.046~0.532;“睡眠质量→家庭支持→社会支持→负性情绪”路径的间接效应为0.088,bootstrap 95%CI为0.009~0.207。差异有统计学意义(P均<0.05)。结论家庭社会支持在甲状腺微波消融术后患者睡眠质量和负性情绪之间起链式中介作用。展开更多
文摘Agile Supply Chain Management (ASCM) is an important topic and has received much attention recently. ASCM is a new management technology. Agile Supply Chain Management Decision Support System (ASCM DSS) is presented. Firstly, agile supply chain management technology is introduced. Secondly a decision support system for agile supply chain management is proposed. Then, the implementation of ASCM DSS in enterprise is discussed. Finally, a fuzzy intelligence decision making process in Shanghai Turbine Generator Company (STGC) is described in detail.
文摘The rough set-genetic support vector machine(SVM) model is applied to supply chain performance evaluation. First, the rough set theory is used to remove the redundant factors that affect the performance evaluation of supply chain to obtain the core influencing factors. Then the support vector machine is used to extract the core influencing factors to predict the level of supply chain performance. In the process of SVM classification, the genetic algorithm is used to optimize the parameters of the SVM algorithm to obtain the best parameter model, and then the supply chain performance evaluation level is predicted. Finally, an example is used to predict this model, and compared with the result of using only rough set-support vector machine to predict. The results show that the method of rough set-genetic support vector machine can predict the level of supply chain performance more accurately and the prediction result is more realistic, which is a scientific and feasible method.
文摘共识机制是区块链技术的重要组成部分,针对委托权益证明(delegated proof of stake,DPoS)共识机制中对恶意节点不能及时有效处理的问题,提出了一种基于支持向量机的DPoS共识机制改进方案(SVM-DPoS)。首先构建基于SVM的节点判别模型,通过训练好的模型分析节点的行为动机,根据判别结果及时剔除恶意节点;其次基于固定协商出块顺序优化传统算法的出块流程,提升出块效率,进一步提高了整个区块链网络的运行效率。在公开数据集上的实验结果表明,与已有的几种方法相比,改进后的共识机制能够快速剔除恶意节点,不仅维护了系统稳定性,而且增强了对恶意行为的防范能力,从而在保障区块链网络正常运行的同时,提高了整体共识的安全性。
文摘目的探讨家庭社会支持对甲状腺微波消融术后患者睡眠质量和负性情绪的链式中介作用。方法前瞻性方便选取2023年7—12月南宁市第二人民医院接受甲状腺微波消融术治疗的157例患者作为研究对象,术后采用家庭支持自评量表(Perceived Social Support From Family,PSS-Fa)、社会支持评定量表(Social Support Rating Scale,SSRS)、匹兹堡睡眠质量指数(Pittsburgh Sleep Quality Index,PSQI)、焦虑自评量表(Self-rating Anxiety Scale,SAS)与抑郁自评量表(Self-rating Depression Scale,SDS)为调查工具。分析患者家庭支持水平、社会支持水平、睡眠质量及负性情绪之间的相关性,并分析家庭社会支持对甲状腺微波消融术后患者睡眠质量和负性情绪的链式中介作用。结果最终回收有效问卷153份。不同年龄、婚姻状况、文化程度、消融范围甲状腺微波消融术后患者的PSS-Fa评分、SSRS评分、PSQI评分、SAS评分、SDS评分比较,差异有统计学意义(P均<0.05);不同性别的甲状腺微波消融术后患者的PSQI评分比较,差异有统计学意义(P<0.05),PSS-Fa评分、SSRS评分、SAS评分、SDS评分比较,差异无统计学意义(P均>0.05)。患者PSQI总分与PSS-Fa、SSRS总分呈负相关,与负性情绪评分呈正相关;PSS-Fa总分与SSRS总分呈正相关,与负性情绪评分呈负相关;SSRS总分与负性情绪评分呈负相关。“睡眠质量→家庭支持→负性情绪”路径的间接效应为0.436,bootstrap 95%CI为0.143~0.739;“睡眠质量→社会支持→负性情绪”路径的间接效应为0.261,bootstrap 95%CI为0.046~0.532;“睡眠质量→家庭支持→社会支持→负性情绪”路径的间接效应为0.088,bootstrap 95%CI为0.009~0.207。差异有统计学意义(P均<0.05)。结论家庭社会支持在甲状腺微波消融术后患者睡眠质量和负性情绪之间起链式中介作用。