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Regulation of Content of Malondialdehyde by Siqi Decoction via Increasing Activity of Superoxide Dismutase in Blood Serum of Rats with Myocardial Ischemia 被引量:1
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作者 su Yan-bin JIANG Yi-zhong +4 位作者 LU Ming CHENG Ying-kun su yan-wen ZHANG Fen-rong LI Zheng-qiang 《Chemical Research in Chinese Universities》 SCIE CAS CSCD 2009年第5期686-689,共4页
Effect of Siqi decoction on myocardial ischemia is to prevent cardiac myocyte membrane from damage associated with oxygen free radicals related to NO. To research the regulatoin of the content of malondialdehyde by Si... Effect of Siqi decoction on myocardial ischemia is to prevent cardiac myocyte membrane from damage associated with oxygen free radicals related to NO. To research the regulatoin of the content of malondialdehyde by Siqi decoction, an index of lipid peroxidation, via increasing activity of superoxide dismutase in blood serum of rats with Myocardial Ischemia, the model of myocardium ischemia was made in Wistar rats with posterior pituitary injection through vein in tail. Siqi decoction, Diaoxinxuekang(DK) and Fufangdanshenpian(FD), the latter two drugs of which are effective TCM drugs of anti-myocardial ischemia at present, were administrated to the rats with myocardium ischemia for 5 days to compare the effect of them on myocardium ischemia as reference drugs via measuring the changes of the content of malondialdehyde and the activity of superoxide dismutase in the rat blood serum with myocardial ischemia. There were a remarkable increase in the activity of superoxide dismutase and a decrease in the content of malondialdehyde in the serum of the rats administered Siqi decoction compared with those of the rats in control group, p〈0.05. The contents of MDA in the serum of the prevention group rats in the experiments are lower than those of the cure group rats. Anti-Myocardium Ischemia mechanism of Siqi decoction is the regulation of the content of malondialdehyde via increasing activity of superoxide dismutase in the serum of Rats with myocardial ischemia and stimulating the activity of NOS in serum so as to increase NO concentration. 展开更多
关键词 Siqi decoction Myocardial ischemia Posterior pituitary MALONDIALDEHYDE Superoxide dismutase
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Regulating Effect of Allicin(Diallyldisulfid-S-Oxide) on Respiration Function of Mitochondria from Beef Heart
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作者 su Yan-bin TONG Li-fang +6 位作者 LIU Pai LU Ming CHENG Ying-kun ZHANG Feng-rong su yan-wen DONG Jia-ning LI Zheng-qiang 《Chemical Research in Chinese Universities》 SCIE CAS CSCD 2010年第5期785-791,共7页
To probe into regulating functions of allicin, diallyldisulfid-S-oxide, on electron transport in the inner membrane of mitochondria isolated from beef heart, under the anaerobic, hypoxia, and oxygenating conditions in... To probe into regulating functions of allicin, diallyldisulfid-S-oxide, on electron transport in the inner membrane of mitochondria isolated from beef heart, under the anaerobic, hypoxia, and oxygenating conditions in the presence of rotenone(complex I inhibitor) at 37 ℃, we optimized the isolation method for isolating mitochondria from beef heart and used the technique for measuring dissolved oxygen content at the right moment so as to investigate the effects of allicin on the respiratory control of mitochondria in state 4 and state 3, P/O ratio, and respiratory control ratio(RCR). The results show that the optimized isolated requirements were that all the operations were always kept at 0-4 ℃, the ratio between sample and isolation medium was 1:4, the filter was a four-layer gauze, two centrifugations in different sections. First section: 2500g, 10 min; second section 7000g, 20 min. The results indicate that the capacity of dissolved oxygen in state 3 was increased and that of dissolved oxygen in state 4 was almost stabilized in mitochondria from beef heart. 展开更多
关键词 ALLICIN RESPIRATION MITOCHONDRIAL Beef heart
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基于多元EMD-AM/FM分解的多点非平稳雷暴风速模拟 被引量:3
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作者 宋淳宸 苏延文 +2 位作者 黄国庆 刘瑞莉 杨成 《工程力学》 EI CSCD 北大核心 2019年第7期109-115,125,共8页
雷暴风对建筑物和输电线塔等结构具有很大的破坏性。为了准确估算结构的动力响应,获得可靠的风速样本至关重要。该文结合多元经验模态分解(MEMD),调频函数/调幅函数(AM/FM)分解和本征正交分解(POD)建立了基于时频分析的非平稳多点风速... 雷暴风对建筑物和输电线塔等结构具有很大的破坏性。为了准确估算结构的动力响应,获得可靠的风速样本至关重要。该文结合多元经验模态分解(MEMD),调频函数/调幅函数(AM/FM)分解和本征正交分解(POD)建立了基于时频分析的非平稳多点风速的模拟方法。第一,采用MEMD分解多点风速,产生固有模态函数;第二,采用AM/FM分解计算各点的固有模态函数的瞬时频率和瞬时幅值;第三,利用POD对瞬时频率解耦;第四,将瞬时幅值和解耦后的瞬时频率用于重构多点非平稳风速。实测多点雷暴风的模拟结果表明:MEMD-AM/FM分解-POD方法能满意地模拟多点非平稳雷暴风速。 展开更多
关键词 MEMD AM/FM分解 POD 时频分析 多点非平稳模拟
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拉林铁路藏木大桥施工期风速概率预测方法 被引量:3
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作者 苏延文 曾永平 《桥梁建设》 EI CSCD 北大核心 2021年第4期45-52,共8页
为保障大跨度桥梁在施工期间的抗风安全性,以拉林铁路藏木大桥(主跨430 m的中承式钢管混凝土拱桥)为工程背景,提出了适用于工程推广应用的风速超前概率预测方法。即采用数据驱动的变分模态分解(VMD)将原始风速进行多尺度分解,通过特征... 为保障大跨度桥梁在施工期间的抗风安全性,以拉林铁路藏木大桥(主跨430 m的中承式钢管混凝土拱桥)为工程背景,提出了适用于工程推广应用的风速超前概率预测方法。即采用数据驱动的变分模态分解(VMD)将原始风速进行多尺度分解,通过特征选取技术重新组合多阶分量,形成仅包括可预测信息和干扰预测精度信息的两组序列;采用ARIMA-GARCH组合模型获得确定性的风速预测结果;最后基于纯随机性检验的循环迭代方法准确获得风速序列中蕴含的不确定性信息,并采用单变量核密度估计方法得到具有概率意义的风速区间预测结果。将所述方法风速预测结果与风速实测值进行对比,结果表明:所述预测方法风速预测精度高、区间带宽窄,95%置信度的上包络值可为桥梁施工期风灾辅助决策、防灾减灾提供更为可靠的参考依据。 展开更多
关键词 铁路桥 钢管混凝土拱桥 风速概率预测 ARIMA-GARCH组合模型 随机性检验 单变量核密度估计 风灾辅助决策
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基于Android手机航空订票系统的实现方法
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作者 苏彦文 丁勇 《自动化技术与应用》 2021年第4期132-135,共4页
针对人们对航空运输需求的增加问题,采用了目前先进的Android SDK开发平台及Java语言工具,提出并实现了一款用手机便捷订购机票的软件系统方法。该系统由登录注册、机票预订、订单管理、信息查询、用户管理、订阅管理、用户反馈和软件... 针对人们对航空运输需求的增加问题,采用了目前先进的Android SDK开发平台及Java语言工具,提出并实现了一款用手机便捷订购机票的软件系统方法。该系统由登录注册、机票预订、订单管理、信息查询、用户管理、订阅管理、用户反馈和软件帮助等八个大的功能模块组成。在兼容性和深度遍历测试方面的性能数据结果表明,该系统能满足航空订票系统功能的需求。 展开更多
关键词 ANDROID 兼容性 深度遍历 航空订票
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Effects of Siqi Decoction on Concentration of Nitric Oxide and Activity of Nitric Oxide Synthase in Blood Serum of Rats with Myocardial Ischemia
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作者 su Yan-bin LI Zheng-qiang +1 位作者 su yan-wen ZHANG Fen-rong 《Chemical Research in Chinese Universities》 SCIE CAS CSCD 2008年第1期65-68,共4页
To study the effects of Siqi decoction on rats with Myocardial Ischemia, the model of Myocardium Ischemia was made for the Wistar rats cured with posterior pituitary injection through vein in tail. Siqi decoction, Dia... To study the effects of Siqi decoction on rats with Myocardial Ischemia, the model of Myocardium Ischemia was made for the Wistar rats cured with posterior pituitary injection through vein in tail. Siqi decoction, Diaoxinxuekang(DK) and Fufangdanshenpian(FD), the latter two drugs of which were effective TCM drugs of anti-Myocardial Ischemia at present, were administrated to the rats with Myocardium Ischemia for 5 days to compare the effect of anti-Myocardium Ischemia as reference drugs by measuring the changes of NO concentration and activity of NOS in the rat blood serum with Myocardial Ischemia. There was a remarkable increase in the NO concentration and activity of NOS in serum in Siqi decoction groups compared with those in control group(p〈0.05). The results of the prevention group in experiment of Siqi decoction are better than those of the cure group. Siqi decoction was really fit for Myocardium Ischemia via increasing NO concentration by stimulating the activity of NOS in serum. The effect of Siqi decoction against Myocardium Ischemia in preventive group is better than the curative that of Siqi decoction in the curative group. 展开更多
关键词 Siqi decoction Myocardial Ischemia Posterior pituitary Nitric oxide(NO) Nitric oxide synthase(NOS)
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Analysis of the Main Body the Object and their Relationship Concerning Research of Traditional Chinese Medicine
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作者 su Yan-bin MENG Xian-sheng +1 位作者 su yan-wen SI Ying-kui 《中华中医药学刊》 CAS 2007年第2期344-347,共4页
This paper is the analysis of the main body, the object and their relationship concerning research of traditional Chinese medicine. The result proved that the main body of research of traditional Chinese medicine is r... This paper is the analysis of the main body, the object and their relationship concerning research of traditional Chinese medicine. The result proved that the main body of research of traditional Chinese medicine is researchers who possessed the fundamentals of traditional Chinese medicine. It is the objects of research of traditional Chinese medicine that origin of a class of traditional Chinese medical literature consisting of herbals which focus on descriptions of individual drugs; the relationship of the technological process of preparing Chinese medicine, as by parching, roasting, baking, steaming, soaking, and simmering, etc.;and technology of separating, extracting and purifying for composition; traditional Chinese medicine dynamics of one of the 12 two-hour periods into which the day was formerly divided before the introduction of western chronology; compatibility of medicines in active compositions; patent, effectiveness for a given period of time and constantly changing of traditional Chinese medicine.The relationship between the main body and the objects was that the former depends on the latter ones and the main body has subjective initiative as fully as possible. 展开更多
关键词 Research of traditional Chinese medicine main body OBJECTS RELATIONSHIP
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