Three types of fatigue tests for an annealed carbon steel containing carbon of 0.42%were carried out on smooth specimens and specimens with a small blind hole in order to investigate the fatigue crack growth law.A sim...Three types of fatigue tests for an annealed carbon steel containing carbon of 0.42%were carried out on smooth specimens and specimens with a small blind hole in order to investigate the fatigue crack growth law.A simple predicting method for crack growth rates has been proposed involving strengthσband the relation between cyclic stress and strain.The validity of proposed method has been confirmed by experiments on several carbon steels with different loadings.展开更多
目的:探讨保乳手术治疗对早期乳腺癌患者生存质量及乳腺外观的影响。方法:选择94例2015年1月-2016年1月早期乳腺癌患者并根据术式分组。对照组开展改良根治术治疗,观察组行保乳手术治疗。比较两组乳腺外观优良率,患者自述对乳房外观的...目的:探讨保乳手术治疗对早期乳腺癌患者生存质量及乳腺外观的影响。方法:选择94例2015年1月-2016年1月早期乳腺癌患者并根据术式分组。对照组开展改良根治术治疗,观察组行保乳手术治疗。比较两组乳腺外观优良率,患者自述对乳房外观的满意评价、患者自我形象紊乱评分,手术前后患者生活质量(Generic Quality of Life Inventory,GQOL)评分。结果:①观察组乳腺外观优良率高于对照组,P<0.05;②观察组患者自述对乳房外观的满意评价、患者自我形象紊乱评分低于对照组,P<0.05;③手术前两组GQOL评分无明显差异,P>0.05;手术后观察组GQOL评分高于对照组,P<0.05。结论:早期乳腺癌患者行保乳手术疗效非常理想,可更好减轻患者对自我形象的担忧,提高其对外观的满意度,改善乳腺外观和生活质量。展开更多
基金the supports from the Research Foundation for Visiting Scholars of Key Laboratory of Solid Mechanics and FML of Education Ministry,P R Chinathe supports from Japan Society for Promotion of Science
文摘Three types of fatigue tests for an annealed carbon steel containing carbon of 0.42%were carried out on smooth specimens and specimens with a small blind hole in order to investigate the fatigue crack growth law.A simple predicting method for crack growth rates has been proposed involving strengthσband the relation between cyclic stress and strain.The validity of proposed method has been confirmed by experiments on several carbon steels with different loadings.
文摘目的:探讨保乳手术治疗对早期乳腺癌患者生存质量及乳腺外观的影响。方法:选择94例2015年1月-2016年1月早期乳腺癌患者并根据术式分组。对照组开展改良根治术治疗,观察组行保乳手术治疗。比较两组乳腺外观优良率,患者自述对乳房外观的满意评价、患者自我形象紊乱评分,手术前后患者生活质量(Generic Quality of Life Inventory,GQOL)评分。结果:①观察组乳腺外观优良率高于对照组,P<0.05;②观察组患者自述对乳房外观的满意评价、患者自我形象紊乱评分低于对照组,P<0.05;③手术前两组GQOL评分无明显差异,P>0.05;手术后观察组GQOL评分高于对照组,P<0.05。结论:早期乳腺癌患者行保乳手术疗效非常理想,可更好减轻患者对自我形象的担忧,提高其对外观的满意度,改善乳腺外观和生活质量。
