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水导轴承等离子堆焊Ni60合金组织及其耐腐蚀性能 被引量:4
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作者 邓德伟 牛婷婷 +3 位作者 田鑫 刘海英 孙奇 张林 《材料工程》 EI CAS CSCD 北大核心 2018年第5期106-111,共6页
采用等离子堆焊技术在Z2CN18-10核电用不锈钢表面堆焊Ni60合金,并研究Ni60合金堆焊层的组织结构、硬度和耐蚀性能。结果表明:堆焊层组织主要由γ-Ni、碳化物、硼化物以及γ-Ni和硼化物的共晶组成,堆焊层的底层、中间层和顶层位置各相体... 采用等离子堆焊技术在Z2CN18-10核电用不锈钢表面堆焊Ni60合金,并研究Ni60合金堆焊层的组织结构、硬度和耐蚀性能。结果表明:堆焊层组织主要由γ-Ni、碳化物、硼化物以及γ-Ni和硼化物的共晶组成,堆焊层的底层、中间层和顶层位置各相体积分数不同,中间层菊花状组织最多。Ni60堆焊层硬度约为500HV,明显高于Z2CN18-10不锈钢基体,菊花状共晶组织有助于提高堆焊层硬度。Ni60在硼酸中的钝化能力明显高于海水,且与Z2CN18-10不锈钢的自腐蚀电位差较小,不易发生电偶腐蚀。在模拟海水中堆焊层中间层耐腐蚀性能优于堆焊层的底部和顶部,与基体的自腐蚀电位差较大,容易出现电偶腐蚀。 展开更多
关键词 等离子堆焊 NI60 显微组织 硬度 极化曲线
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Relationship of Inflammation and Endothelial Dysfunction with Risks to Cardiovascular Disease among People in Inner Mongolia of China 被引量:15
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作者 PENG Hao HAN Shu hai +3 位作者 liu hai ying Vasisht CHANDNI CAI Xiao Qing ZHANG Yong Hong 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2013年第10期792-800,共9页
Objective To explore the relationship of inflammation and endothelial dysfunction with risks to cardiovascular disease (CVD). Methods Blood pressure, body weight, body height, waist circumference and lifestyle risk ... Objective To explore the relationship of inflammation and endothelial dysfunction with risks to cardiovascular disease (CVD). Methods Blood pressure, body weight, body height, waist circumference and lifestyle risk factors were measured and studied among 2589 participants in Inner Mongolia of China, and biomarkers of inflammation and endothelial dysfunction including high-sensitivity C-reactive protein (hsCRP), soluble inter-cellular adhesion molecule-1 (slCAM-1), soluble E-selectin (sE-selectin), and angiotensin II were investigated. Results Subjects with metabolic risk factors for CVD had higher levels of hsCRP, sE-selectin and slCAM-1 than those without such risk factors (all P〈O.05). Levels of all biomarkers positively and significantly increased with aggregation of the metabolic risk factors among the subjects (all P for trend 〈0.001). Data from the multivariate analysis showed that participants with high levels of hsCRP [odds ratio (OR}: 1.96, 95% confidence interval (CI): 1.52-2.53], sE-selectin (OR: 1.35, 95% Cl: 1.05-1.72), and angiotensin II (OR: 1.81, 95% CI" 1.40-2.33) were more likely to develop hypertension; participants with high levels of hsCRP (OR: 2.33, 95% CI: 1.85-2.94), sE-selectin (OR: 1.24, 95% CI: 1.00-1.54), and slCAM-1 (OR: 1.70, 95% CI: 1.30-2.22) were more likely to develop dyslipidemia, and those with high levels of hsCRP (OR: 2.95, 95% CI: 2.27-3.83) and slCAM-I(OR: 2.80, 95% CI: 2.06-3.80) were more likely to develop hyperglycemia. Conclusion Biomarkers of inflammation and endothelial dysfunction were separately associated with relevant metabolic risk factors for CVD. And appropriate measures should be taken to control inflammation and improve endothelial function among individuals with different metabolic risk factors for CVD. 展开更多
关键词 Cardiovascular disease Endothelial dysfunction INFLAMMATION Risk factors
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Changes in Activities of Glutamine Synthetase during Grain Filling and Their Relation to Rice Quality 被引量:6
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作者 JIN Zheng xun QIAN Chun rong +2 位作者 YANG Jing liu hai ying PIAO Zhong ze 《Rice science》 SCIE 2007年第3期211-216,共6页
关键词 japonica rice grain filling glutamine synthetase enzyme activity nitrogen content protein content cooking and eating quality
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