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星载高可靠性嵌入式数据库系统的设计与实现 被引量:2
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作者 张东晨 李文新 +1 位作者 贾露娟 夏加高 《计算机技术与发展》 2019年第12期93-98,共6页
随着国内航天技术的不断发展,星载平台数据量日渐增多,为了提高星载嵌入式系统对数据的处理能力,在充分考虑现有嵌入式数据库功能的基础上,结合星载嵌入式处理器硬件资源受限的实际情况,提出了一种新型的基于FatFs文件系统的星载嵌入式... 随着国内航天技术的不断发展,星载平台数据量日渐增多,为了提高星载嵌入式系统对数据的处理能力,在充分考虑现有嵌入式数据库功能的基础上,结合星载嵌入式处理器硬件资源受限的实际情况,提出了一种新型的基于FatFs文件系统的星载嵌入式数据库实现方案,大大减少了对系统内存的占用。同时,该方案将应用于通讯领域的汉明码容错技术加以改进并与数据库系统相结合,有效解决了空间环境下星载数据管理系统中极易出现的单粒子事件。经过测试验证表明该方案正确可行,且与传统的嵌入式数据库相比,可以满足星载数据库系统对于高可靠性的要求,弥补了传统数据库系统在数据存储可靠性设计上的不足。 展开更多
关键词 星载嵌入式系统 数据库 可靠性 文件系统
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The effects of borneol on the pharmacokinetics and brain distribution of tanshinone IIA,salvianolic acid B and ginsenoside Rg1 in Fufang Danshen preparation in rats 被引量:5
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作者 ZHANG Jie LIU Sheng-Lan +4 位作者 WANG Hui SHI Li-Ying LI Jin-Ping jia lu-juan XIE Bao-Ping 《Chinese Journal of Natural Medicines》 SCIE CAS CSCD 2021年第2期153-160,共8页
Fufang Danshen preparation(FDP)is consisted of Salviae Miltiorrhizar Radix et Rhizoma(Danshen),Notoginseng Radix et Rhizoma(Sanqi)and Borneolum Syntheticum(borneol).FDP is usually used to treat myocardial ischemia hyp... Fufang Danshen preparation(FDP)is consisted of Salviae Miltiorrhizar Radix et Rhizoma(Danshen),Notoginseng Radix et Rhizoma(Sanqi)and Borneolum Syntheticum(borneol).FDP is usually used to treat myocardial ischemia hypoxia,cerebral ischemia and alzheimer’s disease,etc.In the treatment of cerebrovascular diseases,borneol is usually used to promote the absorption and distribution of the bioactive components to proper organs,especially to the brain.The purpose of this study is investigating the effects of borneol on the pharmacokinetics and brain distribution of tanshinone IIA(TS IIA),salvianolic acid B(SAB)and ginsenoside Rg1 in FDP.Male healthy Sprague-Dawley(SD)rats were given Danshen extracts,Sanqi extracts(Panax notoginseng saponins)or simultaneously administered Danshen extracts,Sanqi extracts and borneol.Plasma and brain samples were collected at different points in time.The concentration of TS IIA,SAB and Rg1 was determined by UPLC-MS/MS method.The main pharmacokinetics parameters of plasma and brain tissue were calculated by using Phoenix WinNolin 6.1 software.In comparison with Danshen and Sanqi alone,there were significant differences in pharmacokinetic parameters of TS IIA,SAB and Rg1,and the brain distribution of SAB and TS IIA when Danshen,Sanqi and borneol were administrated together.Borneol statistically significant shortened tmax of TS IIA,SAB and Rg1 in plasma and brain,increased the bioavaiability of Rg1,inhibited metabolism of Rg1 and enhanced the transport of TS IIA and SAB to brain.These results indicated that borneol could affect the multiple targets components and produce synergistic effects.Through accelerating the intestinal absorption and brain distribution,borneol caused the effective ingredients of Danshen and Sanqi to play a quicker therapeutic role and improved the therapeutic effect. 展开更多
关键词 BORNEOL Fufang Danshen preparation Tanshinone IIA Salvianolic acid B Ginsenoside Rg1 PHARMACOKINETICS
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