The semisolid A356 alloy strip was prepared by a novel continuous micro fused-casting process. The microstructure evolution and mechanical property of A356 aluminum alloy strip with different nozzle temperatures were ...The semisolid A356 alloy strip was prepared by a novel continuous micro fused-casting process. The microstructure evolution and mechanical property of A356 aluminum alloy strip with different nozzle temperatures were investigated. The nozzle temperature had great influences on the microstructure and property primarily accompanied with the crystal change in the fused-casting area through the cooling conditions. The results showed that the semisolid A356 alloy strip samples fabricated by micro fused-casting demonstrated good performances and uniform structures with the nozzle temperature at 593 ℃ and the stirring velocity at 700 r/min. The fine grains of the primary α-Al phase with average grain size of 51 μm and shape factor up to 0.71 were obtained under the micro fused-casting process, and the ultimate average vickers hardness came up to 83.39±0.89 HV, and the tensile strength and elongation of the A356 alloy strip reached 245.32 MPa and 7.85%, respectively.展开更多
目的:探讨基于快速康复外科(ERSA)理念联合中医情志护理在机器人辅助下行妇科恶性肿瘤根治术围术期护理中的应用价值。方法:选择2021年4月—2022年5月在机器人辅助下行妇科恶性肿瘤根治术的患者84例,采用随机数字表法分为对照组和观察组...目的:探讨基于快速康复外科(ERSA)理念联合中医情志护理在机器人辅助下行妇科恶性肿瘤根治术围术期护理中的应用价值。方法:选择2021年4月—2022年5月在机器人辅助下行妇科恶性肿瘤根治术的患者84例,采用随机数字表法分为对照组和观察组,每组42例。对照组行常规护理,观察组行基于ERSA理念联合中医情志护理,对比两组术后康复指标、心理状况及护理满意度。结果:观察组术后首次排气时间、进食时间、下床活动时间及总住院时间均短于对照组,术后3 d Karnofsky评分(KPS评分)高于对照组,差异均有统计学意义(P<0.05)。两组患者出院当天焦虑自评量表(SDS)、抑郁自评量表(SAS)评分均低于护理前,且观察组低于对照组,差异有统计学意义(P<0.05)。观察组护理总满意度高于对照组,差异有统计学意义(P<0.05)。结论:基于ERSA理念联合中医情志护理用于机器人辅助下妇科恶性肿瘤根治术围术期可促进患者术后康复,改善心理状况,提高满意度。展开更多
基金Funded by the National Natural Science Foundation of China(No.51341009)。
文摘The semisolid A356 alloy strip was prepared by a novel continuous micro fused-casting process. The microstructure evolution and mechanical property of A356 aluminum alloy strip with different nozzle temperatures were investigated. The nozzle temperature had great influences on the microstructure and property primarily accompanied with the crystal change in the fused-casting area through the cooling conditions. The results showed that the semisolid A356 alloy strip samples fabricated by micro fused-casting demonstrated good performances and uniform structures with the nozzle temperature at 593 ℃ and the stirring velocity at 700 r/min. The fine grains of the primary α-Al phase with average grain size of 51 μm and shape factor up to 0.71 were obtained under the micro fused-casting process, and the ultimate average vickers hardness came up to 83.39±0.89 HV, and the tensile strength and elongation of the A356 alloy strip reached 245.32 MPa and 7.85%, respectively.
文摘目的:探讨基于快速康复外科(ERSA)理念联合中医情志护理在机器人辅助下行妇科恶性肿瘤根治术围术期护理中的应用价值。方法:选择2021年4月—2022年5月在机器人辅助下行妇科恶性肿瘤根治术的患者84例,采用随机数字表法分为对照组和观察组,每组42例。对照组行常规护理,观察组行基于ERSA理念联合中医情志护理,对比两组术后康复指标、心理状况及护理满意度。结果:观察组术后首次排气时间、进食时间、下床活动时间及总住院时间均短于对照组,术后3 d Karnofsky评分(KPS评分)高于对照组,差异均有统计学意义(P<0.05)。两组患者出院当天焦虑自评量表(SDS)、抑郁自评量表(SAS)评分均低于护理前,且观察组低于对照组,差异有统计学意义(P<0.05)。观察组护理总满意度高于对照组,差异有统计学意义(P<0.05)。结论:基于ERSA理念联合中医情志护理用于机器人辅助下妇科恶性肿瘤根治术围术期可促进患者术后康复,改善心理状况,提高满意度。
