This study aims to reflect the information coverage grey number and the interaction between attributes in grey relational decision making. Therefore, a multi-attribute decision method based on the grey information cov...This study aims to reflect the information coverage grey number and the interaction between attributes in grey relational decision making. Therefore, a multi-attribute decision method based on the grey information coverage interaction relational degree(GIRD) is proposed. Firstly, this paper defines the information coverage grey number, and establishes the GIRD model by using the Choquet fuzzy integral and grey relational principle. It proves that the proposed model not only is the general and unified form of the point relational degree, interval relational degree, mixed relational degree and grey fuzzy integral relational degree, but also can effectively deal with the interaction between attributes. Further,a decision making example of evaluating the industrial operation quality for 14 cities in Hunan province of China is provided to highlight the implementation, availability, and feasibility of the proposed decision model.展开更多
Interaction of electromagnetic,acoustic,and even gravitational waves with accelerating bodies forms a class of nonstationary time-variant processes.Scattered waves contain intrinsic signatures of motion,which manifest...Interaction of electromagnetic,acoustic,and even gravitational waves with accelerating bodies forms a class of nonstationary time-variant processes.Scattered waves contain intrinsic signatures of motion,which manifest in a broad range of phenomena,including Sagnac interference,and both Doppler and micro-Doppler frequency shifts.Although general relativity is often required to account for motion,instantaneous rest frame approaches are frequently used to describe interactions with slowly accelerating objects.We investigate theoretically and experimentally an interaction regime that is neither relativistic nor adiabatic.The test model considers an accelerating scatterer with a long-lasting relaxation memory.The slow decay rates violate the instantaneous reaction assumption of quasistationarity,introducing nonMarkovian contributions to the scattering process.Memory signatures in scattering from a rotating dipole are studied theoretically,showing symmetry breaking of micro-Doppler combs.A quasistationary numeric analysis of scattering in the short-memory limit is proposed and validated experimentally with an example of electromagnetic pulses interacting with a rotating wire.展开更多
The aim of this study is to evaluate the hydrogeochemical characteristics and water environmental quality of shallow groundwater in the Suxian mining area of Huaibei coalfield,China.The natural formation process of sh...The aim of this study is to evaluate the hydrogeochemical characteristics and water environmental quality of shallow groundwater in the Suxian mining area of Huaibei coalfield,China.The natural formation process of shallow groundwater in Suxian is explored using Piper trilinear charts and Gibbs diagrams,and by examining the ratios between the major ions.United States Salinity Laboratory(USSL)charts,Wilcox diagrams,and the water quality index(WQI)are further employed to quantify the differences in water quality.The results reveal that the main hydrochemical facies of groundwater are HC03-Ca,and that silicate dissolution is the main factor controlling the ion content in shallow groundwater.The USSL charts and Wilcox diagrams show that most of the water samples would be acceptable for use in irrigation systems.The WQI results for each water sample are compared and analyzed,and the quality of groundwater samples around collapse ponds is found to be relatively poor.展开更多
目的研究性别和疾病进程及其交互作用对性途径感染的艾滋病病毒感染者/患者(people living with HIV/AIDS,PLWHA)生存质量的影响,为提高其生存质量采取针对性措施。方法 2015年10月至2016年2月在常州市进行横断面调查研究,将性别与疾病...目的研究性别和疾病进程及其交互作用对性途径感染的艾滋病病毒感染者/患者(people living with HIV/AIDS,PLWHA)生存质量的影响,为提高其生存质量采取针对性措施。方法 2015年10月至2016年2月在常州市进行横断面调查研究,将性别与疾病进程及两个二分类变量的交互作用乘积项纳入线性相加模型,分析性别和疾病进程及其交互作用对性途径感染的PLWHA生存质量的影响。结果在社会关系和精神领域,不同性别同种感染途径的PLWHA,处于AIDS阶段的女性患者生存质量修正得分(11.62和10.99分)均低于处于HIV阶段女性患者的相应值(12.70和12.73分);不同性别不同感染途径的PLWHA,处于AIDS阶段女性患者的生存质量修正得分(11.73和10.81分)均低于处于HIV阶段女性患者的相应值(12.97和12.78分)。结论不管男性是同性途径感染还是异性途径感染,疾病进程对其生存质量的影响也不同;处于AIDS阶段的女性患者生存质量最差,作为社会弱势群体,应该得到更多的政策帮助和人文关怀。展开更多
基金supported by the National Natural Science Foundation of China(71871174,71571065,71671135)the National Social Science Fund of China(13FGL005)。
文摘This study aims to reflect the information coverage grey number and the interaction between attributes in grey relational decision making. Therefore, a multi-attribute decision method based on the grey information coverage interaction relational degree(GIRD) is proposed. Firstly, this paper defines the information coverage grey number, and establishes the GIRD model by using the Choquet fuzzy integral and grey relational principle. It proves that the proposed model not only is the general and unified form of the point relational degree, interval relational degree, mixed relational degree and grey fuzzy integral relational degree, but also can effectively deal with the interaction between attributes. Further,a decision making example of evaluating the industrial operation quality for 14 cities in Hunan province of China is provided to highlight the implementation, availability, and feasibility of the proposed decision model.
基金supported in part by ERC StG“In Motion”(Grant No.802279)PAZY Foundation(Grant No.01021248)
文摘Interaction of electromagnetic,acoustic,and even gravitational waves with accelerating bodies forms a class of nonstationary time-variant processes.Scattered waves contain intrinsic signatures of motion,which manifest in a broad range of phenomena,including Sagnac interference,and both Doppler and micro-Doppler frequency shifts.Although general relativity is often required to account for motion,instantaneous rest frame approaches are frequently used to describe interactions with slowly accelerating objects.We investigate theoretically and experimentally an interaction regime that is neither relativistic nor adiabatic.The test model considers an accelerating scatterer with a long-lasting relaxation memory.The slow decay rates violate the instantaneous reaction assumption of quasistationarity,introducing nonMarkovian contributions to the scattering process.Memory signatures in scattering from a rotating dipole are studied theoretically,showing symmetry breaking of micro-Doppler combs.A quasistationary numeric analysis of scattering in the short-memory limit is proposed and validated experimentally with an example of electromagnetic pulses interacting with a rotating wire.
基金the Postgraduate Innovation Fund project of Anhui University of Science and Technology(2019CX2006)the National Natural Science Foundation of China(41773100)+1 种基金a Research Project of Huaibei Mining Group Co.(2020)a Research Project of Wanbei Coal-Electricity Group Co.,Ltd.(2020).
文摘The aim of this study is to evaluate the hydrogeochemical characteristics and water environmental quality of shallow groundwater in the Suxian mining area of Huaibei coalfield,China.The natural formation process of shallow groundwater in Suxian is explored using Piper trilinear charts and Gibbs diagrams,and by examining the ratios between the major ions.United States Salinity Laboratory(USSL)charts,Wilcox diagrams,and the water quality index(WQI)are further employed to quantify the differences in water quality.The results reveal that the main hydrochemical facies of groundwater are HC03-Ca,and that silicate dissolution is the main factor controlling the ion content in shallow groundwater.The USSL charts and Wilcox diagrams show that most of the water samples would be acceptable for use in irrigation systems.The WQI results for each water sample are compared and analyzed,and the quality of groundwater samples around collapse ponds is found to be relatively poor.
文摘目的研究性别和疾病进程及其交互作用对性途径感染的艾滋病病毒感染者/患者(people living with HIV/AIDS,PLWHA)生存质量的影响,为提高其生存质量采取针对性措施。方法 2015年10月至2016年2月在常州市进行横断面调查研究,将性别与疾病进程及两个二分类变量的交互作用乘积项纳入线性相加模型,分析性别和疾病进程及其交互作用对性途径感染的PLWHA生存质量的影响。结果在社会关系和精神领域,不同性别同种感染途径的PLWHA,处于AIDS阶段的女性患者生存质量修正得分(11.62和10.99分)均低于处于HIV阶段女性患者的相应值(12.70和12.73分);不同性别不同感染途径的PLWHA,处于AIDS阶段女性患者的生存质量修正得分(11.73和10.81分)均低于处于HIV阶段女性患者的相应值(12.97和12.78分)。结论不管男性是同性途径感染还是异性途径感染,疾病进程对其生存质量的影响也不同;处于AIDS阶段的女性患者生存质量最差,作为社会弱势群体,应该得到更多的政策帮助和人文关怀。