The beginning of failure of a (ZrO2-7%Y2O3)/(Ni-22%Co-17%Cr-12.5%Al-0.6%Y) duplex andgraded coating systems on lnconel 617 and IN738LC in burner rig tests has been characterized.The test conditions are 40 s heating up...The beginning of failure of a (ZrO2-7%Y2O3)/(Ni-22%Co-17%Cr-12.5%Al-0.6%Y) duplex andgraded coating systems on lnconel 617 and IN738LC in burner rig tests has been characterized.The test conditions are 40 s heating up to 75O℃ substrate temperature followed by 80 s aircooling. Failure is considered at the appearance of the first bright spot during heating period.Stresses due to thermal expansion mismatch strains on cooling are the probable cause of life-limiting in this conditions of testing.展开更多
目的：通过对查体、超声和钼靶片测量化疗前后乳腺肿物大小的变化与术后病理Miller and Payne（MP）分级的比较,探讨预测新辅助化疗（NAC）后病灶病理缓解程度的方法。方法：选择本科室乳腺癌NAC并手术的患者65例,采用麦默通（14G）行...目的：通过对查体、超声和钼靶片测量化疗前后乳腺肿物大小的变化与术后病理Miller and Payne（MP）分级的比较,探讨预测新辅助化疗（NAC）后病灶病理缓解程度的方法。方法：选择本科室乳腺癌NAC并手术的患者65例,采用麦默通（14G）行穿刺活检,病理诊断明确后行1~6个疗程TAC方案（多西他赛、多柔比星和环磷酰胺）或其他化疗方案,最后一次化疗后3周以内行手术治疗。所有患者在化疗前及手术前采用查体、超声和钼靶片测量肿物大小;病理缓解程度通过比较手术后与化疗前穿刺组织中癌组织变化,应用MP分级评价。应用ROC曲线和Spearman相关性分析方法计算查体、超声及乳腺钼靶检查测量肿物大小变化与病理MP分级的关系。结果：NAC后查体、超声及乳腺钼靶检查测量肿物大小变化与病理MP分级存在相关性（r=0.487,P=0.000;r=0.251,P=0.044;r=0.351,P=0.004）。查体、超声和钼靶3种检查方法评价病理完全缓解（pCR）的ROC曲线下面积分别为0.703、0.531和0.712,三者结合为0.727。结论：查体和钼靶在预测乳腺肿物病理缓解程度上优于超声检查;3种方法结合对乳腺癌NAC后病理缓解程度有预测价值。展开更多
文摘The beginning of failure of a (ZrO2-7%Y2O3)/(Ni-22%Co-17%Cr-12.5%Al-0.6%Y) duplex andgraded coating systems on lnconel 617 and IN738LC in burner rig tests has been characterized.The test conditions are 40 s heating up to 75O℃ substrate temperature followed by 80 s aircooling. Failure is considered at the appearance of the first bright spot during heating period.Stresses due to thermal expansion mismatch strains on cooling are the probable cause of life-limiting in this conditions of testing.
文摘目的：通过对查体、超声和钼靶片测量化疗前后乳腺肿物大小的变化与术后病理Miller and Payne（MP）分级的比较,探讨预测新辅助化疗（NAC）后病灶病理缓解程度的方法。方法：选择本科室乳腺癌NAC并手术的患者65例,采用麦默通（14G）行穿刺活检,病理诊断明确后行1~6个疗程TAC方案（多西他赛、多柔比星和环磷酰胺）或其他化疗方案,最后一次化疗后3周以内行手术治疗。所有患者在化疗前及手术前采用查体、超声和钼靶片测量肿物大小;病理缓解程度通过比较手术后与化疗前穿刺组织中癌组织变化,应用MP分级评价。应用ROC曲线和Spearman相关性分析方法计算查体、超声及乳腺钼靶检查测量肿物大小变化与病理MP分级的关系。结果：NAC后查体、超声及乳腺钼靶检查测量肿物大小变化与病理MP分级存在相关性（r=0.487,P=0.000;r=0.251,P=0.044;r=0.351,P=0.004）。查体、超声和钼靶3种检查方法评价病理完全缓解（pCR）的ROC曲线下面积分别为0.703、0.531和0.712,三者结合为0.727。结论：查体和钼靶在预测乳腺肿物病理缓解程度上优于超声检查;3种方法结合对乳腺癌NAC后病理缓解程度有预测价值。
