Electrode materials that rely on conversion reactions for lithium-ion batteries(LIBs)possess high energy densities.However,a key issue in their design is bolstering their stability and minimizing volume variations dur...Electrode materials that rely on conversion reactions for lithium-ion batteries(LIBs)possess high energy densities.However,a key issue in their design is bolstering their stability and minimizing volume variations during lithiation and delithiation.Herein,an effect-ive strategy was devised to fulfill the fully reversible conversion reaction for lithium storage in CoMoO_(4) through the hybridization of Co-MoO_(3).CoMoO_(3)/CoMoO_(4) with a nanorod structure was synthesized via one-step annealing treatment after a solvothermal process.In such a structure,the CoMoO_(3)/CoMoO_(4) nanorod can considerably boost mechanical robustness and offer ample space to counteract volume fluctuations throughout successive cycles owing to the cooperative interaction between CoMoO_(3) and CoMoO_(4).CoMoO_(3)/CoMoO_(4) exhib-ited superior lithium-storage capacity(919.6 mAh/g at 0.1 A/g after 200 cycles)and cycling stability(683.4 mAh/g at 1 A/g after 600 cycles).CoMoO_(3)/CoMoO_(4) showed a high potential as an anode material for LIBs.展开更多
目的基于“紧急输血由急诊科授权医生启动,输血科15 min内发放不超过4 U O型未交叉配血悬浮红细胞”的单中心临床实践,了解该实践背景下紧急输O型未交叉配血悬浮红细胞策略的实施现状,为血液管理提供参考。方法回顾性分析2019年8月—202...目的基于“紧急输血由急诊科授权医生启动,输血科15 min内发放不超过4 U O型未交叉配血悬浮红细胞”的单中心临床实践,了解该实践背景下紧急输O型未交叉配血悬浮红细胞策略的实施现状,为血液管理提供参考。方法回顾性分析2019年8月—2024年4月四川大学华西医院紧急输O型血患者病例信息,包括申请紧急输血原因、输血申请送达输血科所需时间、输血科血液发放所需时间、患者输血前后总胆红素、间接胆红素、乳酸脱氢酶、患者血型、病情转归等。结果2019年8月—2024年4月本院申请紧急输O型血的患者有39例,共输注未经交叉配血的O型悬浮红细胞90 U。患者均为Rh(D)阳性,其中A型14例;B型6例;O型16例;AB型2例;暂无法定型1例,抗体筛查阳性2例,紧急输O型血的患者中车祸伤是主要原因,占46%(18/39),死亡率51.28%(20/39),死亡原因均为原发伤,无溶血性输血反应的临床指征:输血前后总胆红素(TBTL)、间接胆红素(IBIL)、乳酸脱氢酶(LDH)无统计学差异,P值均>0.05。患者从入院到输血科接收输血申请单和输血科从收到申请单到血液发放的中位时间分别为30.20 min和5.30 min。结论基于“紧急输血由急诊科授权医生启动,输血科15 min内发放不超过4 U O型未交叉配血悬浮红细胞”的单中心临床实践具有安全性,但申请紧急输O型血流程中在输血申请单送达输血科之前有优化空间。展开更多
基金supported by Jiangxi Provincial Natural Science Foundation,China(Nos.20242BAB25195 and 20224BAB211018)National Natural Science Foundation of China(No.12264029)+1 种基金the Scientific Research Foundation of Jiangxi Provincial Education Department,China(No.GJJ211944)the college Students’Innovation and Entrepreneurship Training program of Jiangxi Province,China.
文摘Electrode materials that rely on conversion reactions for lithium-ion batteries(LIBs)possess high energy densities.However,a key issue in their design is bolstering their stability and minimizing volume variations during lithiation and delithiation.Herein,an effect-ive strategy was devised to fulfill the fully reversible conversion reaction for lithium storage in CoMoO_(4) through the hybridization of Co-MoO_(3).CoMoO_(3)/CoMoO_(4) with a nanorod structure was synthesized via one-step annealing treatment after a solvothermal process.In such a structure,the CoMoO_(3)/CoMoO_(4) nanorod can considerably boost mechanical robustness and offer ample space to counteract volume fluctuations throughout successive cycles owing to the cooperative interaction between CoMoO_(3) and CoMoO_(4).CoMoO_(3)/CoMoO_(4) exhib-ited superior lithium-storage capacity(919.6 mAh/g at 0.1 A/g after 200 cycles)and cycling stability(683.4 mAh/g at 1 A/g after 600 cycles).CoMoO_(3)/CoMoO_(4) showed a high potential as an anode material for LIBs.
文摘目的基于“紧急输血由急诊科授权医生启动,输血科15 min内发放不超过4 U O型未交叉配血悬浮红细胞”的单中心临床实践,了解该实践背景下紧急输O型未交叉配血悬浮红细胞策略的实施现状,为血液管理提供参考。方法回顾性分析2019年8月—2024年4月四川大学华西医院紧急输O型血患者病例信息,包括申请紧急输血原因、输血申请送达输血科所需时间、输血科血液发放所需时间、患者输血前后总胆红素、间接胆红素、乳酸脱氢酶、患者血型、病情转归等。结果2019年8月—2024年4月本院申请紧急输O型血的患者有39例,共输注未经交叉配血的O型悬浮红细胞90 U。患者均为Rh(D)阳性,其中A型14例;B型6例;O型16例;AB型2例;暂无法定型1例,抗体筛查阳性2例,紧急输O型血的患者中车祸伤是主要原因,占46%(18/39),死亡率51.28%(20/39),死亡原因均为原发伤,无溶血性输血反应的临床指征:输血前后总胆红素(TBTL)、间接胆红素(IBIL)、乳酸脱氢酶(LDH)无统计学差异,P值均>0.05。患者从入院到输血科接收输血申请单和输血科从收到申请单到血液发放的中位时间分别为30.20 min和5.30 min。结论基于“紧急输血由急诊科授权医生启动,输血科15 min内发放不超过4 U O型未交叉配血悬浮红细胞”的单中心临床实践具有安全性,但申请紧急输O型血流程中在输血申请单送达输血科之前有优化空间。
