排序方式: 共有78条查询结果,搜索用时 15 毫秒
1.
随着嵌入式电子产品越来越多的应用,实时性操作系统VxWorks得到广泛应用,而定时器正是实时性操作系统中不可或缺的重要组件.文章以VxWorks实时性操作系统中的看门狗机制为基础,提出了一种通用性强、效率高并且使用简单的共享看门狗定时机制. 相似文献
2.
综合电子信息系统对于作战行动的影响是关系到未来战争成败的关键。文章从四个方面对综合电子信息系统对作战行动的影响进行了研究,重点阐述了综合电予信息系统对于战斗进程、作战样式、指挥体制、作战结果等方面的影响。 相似文献
3.
4.
现代战场电磁环境复杂,不同类型电磁信号在时频域碰撞混叠,现有常规侦察手段对此类信号的定位应用受到严重制约。双星时差频差定位体制通过互模糊函数求解信号到达时差和频差,分离频域混叠信号并获得高达公里量级的定位精度,非常适合于复杂电磁环境下的应用。通过求解模糊函数的方法分析了时差频差体制对频域混叠信号的分离和定位能力,然后结合美航母编队及其电磁环境构成,探讨了这一能力在监视航母编队,尤其是跟踪识别编队个体成员的具体应用。仿真与分析结果证明了双星时差频差定位体制的优势,对于天基侦察系统的建设具有重要意义。 相似文献
5.
武器系统之间的互操作能力是实现信息化、网络化作战的前提条件。全面介绍了北约情报、监视和侦察互操作框架( NIIA)的顶层架构、技术视图、互操作级别的定义及相关的多个标准化协议,重点描述了北约空中侦察平台与情报处理单元之间、情报处理单元与情报需求用户之间的交互接口,为成体系地深入研究北约情报、侦察与监视( ISR)系统提供了基础资料。借鉴NIIA的架构思想、设计管理模式,结合我国ISR建设现状,对我国ISR互操作性建设提出了几点建议。 相似文献
6.
E. P. Solodov 《中国物理 C》2010,34(6):660-668
Experimental data from the PEP-II B-factory at 10.6 GeV center-of-mass (c.m.) energy, obtained via initial-state radiation (ISR) with the BABAR detector, are presented. The cross sections for many hadronic processes have been measured from the production threshold to 4-5 GeV of the e^+e^- c.m. energy. The obtained data allow to study a number of intermediate states and determine the parameters of known resonances and their branching fractions. The exclusive cross section for some number of hadronic sub-processes are presented. 相似文献
7.
8.
Validation of an ultra‐performance liquid chromatography–tandem mass spectrometry method for the determination of flecainide in human plasma and its clinical application
下载免费PDF全文
![点击此处可从《Biomedical chromatography : BMC》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Yuji Mano Yoshiki Asakawa Kenji Kita Takuho Ishii Koichiro Hotta Kazutomi Kusano 《Biomedical chromatography : BMC》2015,29(9):1399-1405
A simple and reproducible bioanalytical method for the determination of flecainide in human plasma was developed and validated using an ultra‐performance liquid chromatography with tandem mass spectrometry (UPLC‐MS/MS) to obtain higher sensitivity than the current available methods. After simple protein precipitation, flecainide and a stable isotope‐labeled internal standard (IS) were chromatographed on an Acquity UPLC BEH C18 column (2.1 × 100 mm, 1.7 µm) with isocratic elution of mobile phase consisting of 45% methanol containing 0.1% formic acid at a flow rate 0.25 mL/min. Detection was performed in positive electrospray ionization by monitoring the selected ion transitions at m/z 415.4/301.1 for flecainide and m/z 419.4/305.1 for the IS. The method was validated according to current bioanalytical method validation guidelines. The calibration standard curve was linear from 2.5 to 1000 ng/mL using 0.1 mL of plasma. No significant interferences were detected in blank human plasma. Accuracy and precision in the intra‐ and inter‐batch reproducibility study were within acceptance criteria. Neither hemolysis effects nor matrix effects were observed. The UPLC‐MS/MS method developed was successfully applied to determine plasma flecainide concentrations to support clinical studies and incurred sample reanalysis also ensured the reproducibility of the method. Copyright © 2015 John Wiley & Sons, Ltd. 相似文献
9.
航天测控对抗在未来战争中的应用 总被引:2,自引:2,他引:0
航天测控系统在未来战争中具有极其重要的作用。针对未来战争需求,提出了航天测控对抗的概念,分析了航天测控对抗的能力,探讨了实现航天测控对抗的手段。 相似文献
10.