针对当前分析弹药消耗影响客观因素时,所反映的影响规律不够直观的问题,采用多元回归分析原理及模型,借鉴定量评估模型,结合弹药消耗量的数据,利用SPSS(Statistical Product and Service Solutions)软件弹药消耗量的影响因素进行多元回...针对当前分析弹药消耗影响客观因素时,所反映的影响规律不够直观的问题,采用多元回归分析原理及模型,借鉴定量评估模型,结合弹药消耗量的数据,利用SPSS(Statistical Product and Service Solutions)软件弹药消耗量的影响因素进行多元回归分析,建立了回归方程来预测弹药消耗量。结果表明,利用SPSS软件直接对影响弹药消耗量的因素进行回归分析,避免了复杂的推导与计算。通过各模型的预测对比,发现预测精度较高。展开更多
选取典型的河道淤泥作为研究对象,以不同配比的水泥和生石灰作为固化剂,对固化淤泥土进行击实试验和间接抗拉试验,通过统计产品与服务解决方案(Statistical Product and Service Solutions,SPSS)正交设计分析软件来探究固化剂配比变化...选取典型的河道淤泥作为研究对象,以不同配比的水泥和生石灰作为固化剂,对固化淤泥土进行击实试验和间接抗拉试验,通过统计产品与服务解决方案(Statistical Product and Service Solutions,SPSS)正交设计分析软件来探究固化剂配比变化对淤泥强度性能的影响。数据结果表明,含8%(全文均指质量比)水泥和12%生石灰的固化淤泥土的7 d无侧限抗压强度的代表值为0.9 MPa;在水泥含量保持不变的条件下,随着石灰含量的增加,28 d无侧限抗压强度没有明显增加。可见,固化淤泥土的无侧限抗压强度受水泥含量影响最大,即水泥含量越大,固化淤泥土的7 d和28 d无侧限抗压强度越大。展开更多
Plastic products, e.g., plastic bags, plastic bottles, and other plastic materials are widely used in people’s daily life and industrial production worldwide since they are cheap, easy to get, and convenient for all-...Plastic products, e.g., plastic bags, plastic bottles, and other plastic materials are widely used in people’s daily life and industrial production worldwide since they are cheap, easy to get, and convenient for all-purpose of transportation or movement. The wide application of plastic products also brings a lot of problems. The significant adverse consequences include plastic waste pollution and waste of resources, which pose a high threat to social development and environmental protection. In this research, a social survey involving 267 people was conducted to examine how certain factors reduce plastic waste pollution in Kinshasa. Statistical Product and Service Solutions were employed to analyze the data gathered from the survey. The results indicate that all the factors or strategies for reducing plastic waste pollution have a significant positive impact on plastic waste pollution reduction. The environmental factors have the highest contribution to the control of plastic waste pollution with an impact of 88.8%, followed by Government policy with an impact of 42.3%. Economic factors have the least impact contribution, with an impact of 36.0%. This finding and conclusion could be used as a framework for implementing plastic waste pollution management strategies or developing waste management systems.展开更多
文摘针对当前分析弹药消耗影响客观因素时,所反映的影响规律不够直观的问题,采用多元回归分析原理及模型,借鉴定量评估模型,结合弹药消耗量的数据,利用SPSS(Statistical Product and Service Solutions)软件弹药消耗量的影响因素进行多元回归分析,建立了回归方程来预测弹药消耗量。结果表明,利用SPSS软件直接对影响弹药消耗量的因素进行回归分析,避免了复杂的推导与计算。通过各模型的预测对比,发现预测精度较高。
文摘选取典型的河道淤泥作为研究对象,以不同配比的水泥和生石灰作为固化剂,对固化淤泥土进行击实试验和间接抗拉试验,通过统计产品与服务解决方案(Statistical Product and Service Solutions,SPSS)正交设计分析软件来探究固化剂配比变化对淤泥强度性能的影响。数据结果表明,含8%(全文均指质量比)水泥和12%生石灰的固化淤泥土的7 d无侧限抗压强度的代表值为0.9 MPa;在水泥含量保持不变的条件下,随着石灰含量的增加,28 d无侧限抗压强度没有明显增加。可见,固化淤泥土的无侧限抗压强度受水泥含量影响最大,即水泥含量越大,固化淤泥土的7 d和28 d无侧限抗压强度越大。
文摘Plastic products, e.g., plastic bags, plastic bottles, and other plastic materials are widely used in people’s daily life and industrial production worldwide since they are cheap, easy to get, and convenient for all-purpose of transportation or movement. The wide application of plastic products also brings a lot of problems. The significant adverse consequences include plastic waste pollution and waste of resources, which pose a high threat to social development and environmental protection. In this research, a social survey involving 267 people was conducted to examine how certain factors reduce plastic waste pollution in Kinshasa. Statistical Product and Service Solutions were employed to analyze the data gathered from the survey. The results indicate that all the factors or strategies for reducing plastic waste pollution have a significant positive impact on plastic waste pollution reduction. The environmental factors have the highest contribution to the control of plastic waste pollution with an impact of 88.8%, followed by Government policy with an impact of 42.3%. Economic factors have the least impact contribution, with an impact of 36.0%. This finding and conclusion could be used as a framework for implementing plastic waste pollution management strategies or developing waste management systems.
