This paper is dedicated to fixed-time passivity and synchronization for multi-weighted spatiotemporal directed networks.First,to achieve fixed-time passivity,a type of decentralized power-law controller is developed,i...This paper is dedicated to fixed-time passivity and synchronization for multi-weighted spatiotemporal directed networks.First,to achieve fixed-time passivity,a type of decentralized power-law controller is developed,in which only one parameter needs to be adjusted in the power-law terms;this greatly decreases the inconvenience of parameter adjustment.Second,several fixed-time passivity criteria with LMI forms are derived by using a Gauss divergence theorem to deal with the spatial diffusion of nodes and by applying the Hölder’s inequality to dispose rigorously the power-law term greater than one in the designed control scheme;this improves the previous theoretical analysis.Additionally,the fixed-time synchronization of spatiotemporal directed networks with multi-weights is addressed as a direct result of fixed-time strict passivity.Finally,a numerical example is presented in order to show the validity of the theoretical analysis.展开更多
The scientific field test site of rainfall-soil moisture-groundwater conversion in Dabie Mountain Area–Jianghan Plain is located in the northern region of the Jianghan Plain,the transition zone between the Dabie Moun...The scientific field test site of rainfall-soil moisture-groundwater conversion in Dabie Mountain Area–Jianghan Plain is located in the northern region of the Jianghan Plain,the transition zone between the Dabie Mountain Area and Jianghan Plain.It’s a great field test site to study the material and energy exchange among rainfall,soil moisture,and groundwater of the Earth’s critical zone in subtropical monsoon climate plain areas.This paper analyzed the connection between rainfall and volume water content(VWC)of soil at different depths of several soil profiles,and the dynamic feature of groundwater was discussed,which reveals the rainfall infiltration recharge of Quaternary Upper Pleistocene strata.The results show that the Quaternary Upper Pleistocene aquifer groundwater accepts a little direct rainfall recharge,while the lateral recharge is the main supplement source.There were 75 effective rainfall events among 120 rainfall events during the monitoring period,with an accumulated amount of 672.9 mm,and the percentages of effective rainfall amount and duration time were 62.50%and 91.56%,respectively.The max evaporation depth at the upper part in Quaternary cohesive soil was no less than 1.4 m.The soil profile was divided into four zones:(1)The sensitive zone of rainfall infiltration within 1.4 m,where the material and energy exchange frequently near the interface between atmosphere and soil;(2)the buffer zone of rainfall infiltration between 1.4 m and 3.5 m;(3)the migration zone of rainfall infiltration between 3.5 m and 5.0 m;and(4)the rainfall infiltration and groundwater level co-influenced zone below 5.0 m.The results revealed the reaction of soil moisture and groundwater to rainfall in the area covered by cohesive soil under humid climate in Earth’s critical zone,which is of great theoretical and practical significance for groundwater resources evaluation and development,groundwater environmental protection,ecological environmental improvement,drought disaster prevention,and flood disaster prevention in subtropical monsoon climate plain areas.展开更多
目的评价HA380血液灌流治疗对心肺转流(CPB)心脏手术患者术后谵妄(POD)的影响。方法本研究采用前瞻性队列研究设计,选择2024年1—12月于CPB下行心脏手术的患者206例,男120例,女86例,年龄37~75岁,BMI 18.5~32.0 kg/m^(2),ASAⅢ或Ⅳ级,手...目的评价HA380血液灌流治疗对心肺转流(CPB)心脏手术患者术后谵妄(POD)的影响。方法本研究采用前瞻性队列研究设计,选择2024年1—12月于CPB下行心脏手术的患者206例,男120例,女86例,年龄37~75岁,BMI 18.5~32.0 kg/m^(2),ASAⅢ或Ⅳ级,手术类型包括冠状动脉搭桥术、心脏瓣膜置换术或冠状动脉搭桥心脏瓣膜置换联合手术。根据术中是否使用HA380血液灌流治疗将患者分为两组:HA组(n=82)与对照组(n=124)。记录术后7 d内术后认知功能障碍的发生情况及持续时间及术后1个月的认知功能。记录术后机械通气时间、术后ICU治疗时间、术后住院时间、术后并发症的发生情况。于切皮前、术后6、24、48 h采用ELISA法检测血浆炎性因子白细胞介素-6(IL-6)、白细胞介素-8(IL-8)、肿瘤坏死因子-α(TNF-α)及脑损伤标记物tau、胶质纤维酸性蛋白(GFAP)浓度。结果与对照组比较,HA组术后7 d内POD发生率明显降低(P<0.05),术后6 h IL-6、IL-8、TNF-α和GFAP蛋白浓度明显降低(P<0.05),术后24 h IL-6、IL-8、TNF-α、tau和GFAP蛋白浓度明显降低(P<0.05),术后48 h IL-6、TNF-α和tau蛋白浓度明显降低(P<0.05)。两组术后机械通气时间、术后ICU治疗时间、术后住院时间、术后并发症发生率差异无统计学意义。结论CPB心脏手术患者使用HA380血液灌流治疗能够降低术后炎性因子及脑损伤标记物浓度,降低POD发生率。展开更多
目的观察右美托咪定对体外循环心脏瓣膜置换术患者术后谵妄(POD)的影响。方法选取2024年1—12月新疆医科大学第一附属医院行体外循环心脏手术的患者62例为研究对象,采用随机数字表法分为观察组与对照组,各31例。麻醉诱导后,观察组术中...目的观察右美托咪定对体外循环心脏瓣膜置换术患者术后谵妄(POD)的影响。方法选取2024年1—12月新疆医科大学第一附属医院行体外循环心脏手术的患者62例为研究对象,采用随机数字表法分为观察组与对照组,各31例。麻醉诱导后,观察组术中持续泵注盐酸右美托咪定注射液,对照组泵注等量0.9%氯化钠注射液。比较2组术后7 d POD发生情况,机械通气时间、ICU住院时间、术后住院时间,拔管后5、30 min疼痛及躁动评分[数字模拟评分法(NRS)、Richmond躁动—镇静量表(RASS)],术前、术后24 h神经损伤标志物[神经元特异性烯醇化酶(NSE)、S100钙结合蛋白β(S100-β)]、血清炎性因子[C反应蛋白(CRP)、白介素-6(IL-6)、肿瘤坏死因子-α(TNF-α)],术后并发症。结果观察组POD发生率为16.13%(5/31),低于对照组的38.71%(12/31)(χ^(2)=3.911,P=0.046)。观察组术后ICU住院时间、术后住院时间均短于对照组(P<0.05或P<0.01),2组机械通气时间比较差异无统计学意义(P>0.05)。2组拔管后30 min NRS评分、RASS评分均高于拔管后5 min,但观察组拔管后5、30 min NRS评分、RASS评分均低于对照组(P<0.01)。术后24 h,2组血清NSE、S100-β水平均升高,但观察组低于对照组(P<0.01);2组血清CRP、IL-6、TNF-α水平均升高,但观察组血清IL-6、TNF-α水平低于对照组(P<0.01),2组血清CRP水平比较差异无统计学意义(P>0.05)。观察组术后并发症总发生率与对照组比较差异无统计学意义(9.69%vs.16.15%,χ^(2)=0.574,P=0.449)。结论右美托咪定用于体外循环心脏瓣膜置换手术可降低患者POD的风险,减轻机体炎性反应及应激反应,提高镇痛、镇静效果,加速术后康复,且安全性较高。展开更多
基金supported by the National Natural Science Foundation of China(62373317)the Tianshan Talent Training Program(2022TSYCCX0013)+3 种基金the Key Project of Natural Science Foundation of Xinjiang(2021D01D10)the Basic Research Foundation for Universities of Xinjiang(XJEDU2023P023)the Xinjiang Key Laboratory of Applied Mathematics(XJDX1401)the Intelligent Control and Optimization Research Platform in Xinjiang University.
文摘This paper is dedicated to fixed-time passivity and synchronization for multi-weighted spatiotemporal directed networks.First,to achieve fixed-time passivity,a type of decentralized power-law controller is developed,in which only one parameter needs to be adjusted in the power-law terms;this greatly decreases the inconvenience of parameter adjustment.Second,several fixed-time passivity criteria with LMI forms are derived by using a Gauss divergence theorem to deal with the spatial diffusion of nodes and by applying the Hölder’s inequality to dispose rigorously the power-law term greater than one in the designed control scheme;this improves the previous theoretical analysis.Additionally,the fixed-time synchronization of spatiotemporal directed networks with multi-weights is addressed as a direct result of fixed-time strict passivity.Finally,a numerical example is presented in order to show the validity of the theoretical analysis.
基金the project“1:50000 regional hydrogeological survey in the Dabie Mountains contiguous destitute area”(121201009000172522)from Wuhan Center of Geological Survey,China Geological Survey(CGS).
文摘The scientific field test site of rainfall-soil moisture-groundwater conversion in Dabie Mountain Area–Jianghan Plain is located in the northern region of the Jianghan Plain,the transition zone between the Dabie Mountain Area and Jianghan Plain.It’s a great field test site to study the material and energy exchange among rainfall,soil moisture,and groundwater of the Earth’s critical zone in subtropical monsoon climate plain areas.This paper analyzed the connection between rainfall and volume water content(VWC)of soil at different depths of several soil profiles,and the dynamic feature of groundwater was discussed,which reveals the rainfall infiltration recharge of Quaternary Upper Pleistocene strata.The results show that the Quaternary Upper Pleistocene aquifer groundwater accepts a little direct rainfall recharge,while the lateral recharge is the main supplement source.There were 75 effective rainfall events among 120 rainfall events during the monitoring period,with an accumulated amount of 672.9 mm,and the percentages of effective rainfall amount and duration time were 62.50%and 91.56%,respectively.The max evaporation depth at the upper part in Quaternary cohesive soil was no less than 1.4 m.The soil profile was divided into four zones:(1)The sensitive zone of rainfall infiltration within 1.4 m,where the material and energy exchange frequently near the interface between atmosphere and soil;(2)the buffer zone of rainfall infiltration between 1.4 m and 3.5 m;(3)the migration zone of rainfall infiltration between 3.5 m and 5.0 m;and(4)the rainfall infiltration and groundwater level co-influenced zone below 5.0 m.The results revealed the reaction of soil moisture and groundwater to rainfall in the area covered by cohesive soil under humid climate in Earth’s critical zone,which is of great theoretical and practical significance for groundwater resources evaluation and development,groundwater environmental protection,ecological environmental improvement,drought disaster prevention,and flood disaster prevention in subtropical monsoon climate plain areas.
文摘目的评价HA380血液灌流治疗对心肺转流(CPB)心脏手术患者术后谵妄(POD)的影响。方法本研究采用前瞻性队列研究设计,选择2024年1—12月于CPB下行心脏手术的患者206例,男120例,女86例,年龄37~75岁,BMI 18.5~32.0 kg/m^(2),ASAⅢ或Ⅳ级,手术类型包括冠状动脉搭桥术、心脏瓣膜置换术或冠状动脉搭桥心脏瓣膜置换联合手术。根据术中是否使用HA380血液灌流治疗将患者分为两组:HA组(n=82)与对照组(n=124)。记录术后7 d内术后认知功能障碍的发生情况及持续时间及术后1个月的认知功能。记录术后机械通气时间、术后ICU治疗时间、术后住院时间、术后并发症的发生情况。于切皮前、术后6、24、48 h采用ELISA法检测血浆炎性因子白细胞介素-6(IL-6)、白细胞介素-8(IL-8)、肿瘤坏死因子-α(TNF-α)及脑损伤标记物tau、胶质纤维酸性蛋白(GFAP)浓度。结果与对照组比较,HA组术后7 d内POD发生率明显降低(P<0.05),术后6 h IL-6、IL-8、TNF-α和GFAP蛋白浓度明显降低(P<0.05),术后24 h IL-6、IL-8、TNF-α、tau和GFAP蛋白浓度明显降低(P<0.05),术后48 h IL-6、TNF-α和tau蛋白浓度明显降低(P<0.05)。两组术后机械通气时间、术后ICU治疗时间、术后住院时间、术后并发症发生率差异无统计学意义。结论CPB心脏手术患者使用HA380血液灌流治疗能够降低术后炎性因子及脑损伤标记物浓度,降低POD发生率。
文摘目的观察右美托咪定对体外循环心脏瓣膜置换术患者术后谵妄(POD)的影响。方法选取2024年1—12月新疆医科大学第一附属医院行体外循环心脏手术的患者62例为研究对象,采用随机数字表法分为观察组与对照组,各31例。麻醉诱导后,观察组术中持续泵注盐酸右美托咪定注射液,对照组泵注等量0.9%氯化钠注射液。比较2组术后7 d POD发生情况,机械通气时间、ICU住院时间、术后住院时间,拔管后5、30 min疼痛及躁动评分[数字模拟评分法(NRS)、Richmond躁动—镇静量表(RASS)],术前、术后24 h神经损伤标志物[神经元特异性烯醇化酶(NSE)、S100钙结合蛋白β(S100-β)]、血清炎性因子[C反应蛋白(CRP)、白介素-6(IL-6)、肿瘤坏死因子-α(TNF-α)],术后并发症。结果观察组POD发生率为16.13%(5/31),低于对照组的38.71%(12/31)(χ^(2)=3.911,P=0.046)。观察组术后ICU住院时间、术后住院时间均短于对照组(P<0.05或P<0.01),2组机械通气时间比较差异无统计学意义(P>0.05)。2组拔管后30 min NRS评分、RASS评分均高于拔管后5 min,但观察组拔管后5、30 min NRS评分、RASS评分均低于对照组(P<0.01)。术后24 h,2组血清NSE、S100-β水平均升高,但观察组低于对照组(P<0.01);2组血清CRP、IL-6、TNF-α水平均升高,但观察组血清IL-6、TNF-α水平低于对照组(P<0.01),2组血清CRP水平比较差异无统计学意义(P>0.05)。观察组术后并发症总发生率与对照组比较差异无统计学意义(9.69%vs.16.15%,χ^(2)=0.574,P=0.449)。结论右美托咪定用于体外循环心脏瓣膜置换手术可降低患者POD的风险,减轻机体炎性反应及应激反应,提高镇痛、镇静效果,加速术后康复,且安全性较高。
