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微孔洞对高周循环载荷作用下双相钛合金微塑性行为的影响(Ⅰ):晶体塑性分析 被引量:3
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作者 李凯迪 韩晓宁 +2 位作者 唐斌 张梦琪 李金山 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2022年第2期513-523,共11页
建立二维晶体塑性有限元模型研究微孔洞与高周循环载荷作用下双相钛合金微塑性变形行为的关系。结果表明,几何必需位错(GND)倾向聚集于微孔洞周围,且导致平均GND密度升高。孔洞尖端塑性区域(TPZ)的曲率对GND密度的影响大于孔洞尺寸的影... 建立二维晶体塑性有限元模型研究微孔洞与高周循环载荷作用下双相钛合金微塑性变形行为的关系。结果表明,几何必需位错(GND)倾向聚集于微孔洞周围,且导致平均GND密度升高。孔洞尖端塑性区域(TPZ)的曲率对GND密度的影响大于孔洞尺寸的影响。随着TPZ曲率和空洞尺寸的增大,初生α、次生α及β基体内的累积剪切应变增大。初生α相内柱面滑移系上的累积剪切应变主导其变形。当微孔洞间距增大时,微孔洞对累积剪切应变的影响减弱。 展开更多
关键词 晶体塑性 双相钛合金 微孔洞 高周循环载荷 累积剪切应变 几何必需位错
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Long-term follow-up of antithrombotic management patterns in patients with acute coronary syndrome in China 被引量:1
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作者 xiao-ning han Shu-Bin QIAO +6 位作者 Jun-Bo GE Ya-Ling han Ji-Yan CHEN Zu-Yi YUAN Bo YU Jie JIANG Yong HUO 《Journal of Geriatric Cardiology》 SCIE CAS CSCD 2020年第5期246-255,I0002-I0004,共13页
Objective To describe the long-term antithrombotic management patterns(AMPs)and clinical outcomes of Chinese patients with acute coronary syndrome(ACS).Methods This was an observational,multicenter,longitudinal cohort... Objective To describe the long-term antithrombotic management patterns(AMPs)and clinical outcomes of Chinese patients with acute coronary syndrome(ACS).Methods This was an observational,multicenter,longitudinal cohort extension study of Chinese patients who had completed the EPICOR Asia 2-year follow-up study post-hospitalization for an ACS event.Changes in AMP and clinical outcomes for up to 5 years post-ACS event were evaluated.Results Overall,2334 patients with ACS were enrolled at 49 sites.The mean age was 61.6 years and 76.3%were men.By study end,2093 patients completed the 3-year follow-up.At baseline(2 years post-ACS event),72.4%of patents received one antiplatelet(AP)medication,with aspirin being the preferred one.A small proportion of patients(21.5%)was treated with two or more APs(2+AP),and even fewer patients(6.1%)did not receive any AP medication at baseline.Upon study completion,the proportion of patients without AP therapy increased to 13.6%,while the percentage of patients on one AP and 2+AP decreased to 69.3%and 17.1%,respectively.Numerically,a higher incidence of clinical events(composite of all-cause mortality,myocardial infarction,stroke)was observed for the 2+AP(13.2%)subgroup than for the no AP(10.5%)and one AP(8.6%)subgroups.Furthermore,the 2+AP subgroup exhibited the greatest number of bleeding events,outpatient visits,and hospitalization rates.Unlike myocardial infarction or stroke,bleeding events prompted an adjustment in AMP.Conclusion Most patients in China received at least one AP medication up to 5 years after an ACS event. 展开更多
关键词 Acute coronary syndrome Antithrombotic agents Antithrombotic management patterns Observational study Real-world
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