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术中复合加温法对老年人经皮肾镜取石术后康复的影响 被引量:2
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作者 廖碧珊 赵莉 +1 位作者 黄婉玲 吴敏仪 《护理实践与研究》 2013年第3期143-144,共2页
目的:探讨复合加温法对经皮肾镜取石术治疗的老年肾结石患者术后康复的影响。方法:选取我院2011年1月~2012年5月采用经皮肾镜取石术治疗的老年肾结石患者88例为研究对象,将其随机分为研究组和对照组各44例。两组患者均于23℃室温下实... 目的:探讨复合加温法对经皮肾镜取石术治疗的老年肾结石患者术后康复的影响。方法:选取我院2011年1月~2012年5月采用经皮肾镜取石术治疗的老年肾结石患者88例为研究对象,将其随机分为研究组和对照组各44例。两组患者均于23℃室温下实施手术治疗,常规硬膜外麻醉下行经皮肾镜取石术。对照组给予常规护理,研究组在此基础上采用复合加温方法,综合改善患者术中体温。结果:两组患者手术时间、术中输液量、术中灌注液应用总量比较无统计学意义(P>0.05)。研究组患者术中出血量明显低于对照组(P<0.05),术后下床时间,拔除肾造瘘管、尿管时间,住院时间均明显短于对照组(P<0.05),寒战发生率明显低于对照组(P<0.05)。结论:复合加温方法对于老年肾结石患者经皮肾镜取石术后的康复具有较好的临床效果,降低了寒战的发生率,减少了因体温变化而对患者产生的机体刺激。 展开更多
关键词 复合加温 老年人 经皮肾镜取石术 康复效果
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Effect of Ti-Mo-V composite addition on microstructure andmechanical properties of marine 10Ni5CrMoV steel
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作者 ZOU Tao DONG Yan-wu +3 位作者 JIANG Zhou-hua WANG Qi WANG Yong PENG Fei 《Journal of Central South University》 SCIE EI CAS CSCD 2024年第10期3628-3645,共18页
The effects of Ti-Mo-V composite addition on the evolution of precipitates in marine 10Ni5CrMoV steel andthe corresponding strength and toughness mechanisms were systematically investigated.Ti-Mo-V composite addition ... The effects of Ti-Mo-V composite addition on the evolution of precipitates in marine 10Ni5CrMoV steel andthe corresponding strength and toughness mechanisms were systematically investigated.Ti-Mo-V composite addition canform the Ti_(x)Mo_(y)V_(z)C carbide with TiC as core and Mo-V as shell in the order of Ti(C)→V→Mo.The yield strength of thespecimens is increased from 815 MPa to 876 MPa due to the nanoscale precipitates enhancing the pinning effect on grainboundaries and dislocations,and the contribution of precipitation and dislocation strengthening is increased.The decrease of ductile-brittle transition temperature from−103 to−116℃is attributed to the decrease in equivalent grainsize and the increase of high-angle grain boundary misorientation,which hinders the initiation and propagation of cracks.When the mass fraction of Ti is 0.05%,the strength and cryogenic toughness can be improved synergistically,which alsoprovides a theoretical basis and experimental reference for exploring the more excellent combination of strength andcryogenic toughness of marine 10Ni5CrMoV steel. 展开更多
关键词 10Ni5CrMoV steel Ti-Mo-V composition addition ductile-brittle transition temperature Ti_(x)Mo_(y)V_(z)C mechanical properties
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