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面向硬件的软件化载荷产品开发与测试技术

先进小卫星技术（中英文）

先进小卫星技术（中英文） 2024年第3期1卷 63-72页

作者：陈锐王小娟曹新恩中国空间技术研究院西安分院西安710000 军事科学院战争研究院北京100091

传统以硬件形态为主的载荷产品设计方式,在开发进度、成本、可靠性保证、体积及质量等方面已无法满足批量化、迅捷化及低成本的航天任务发展需求和产品竞争.为了解决传统载荷产品的开发瓶颈,探索提出了一种面向硬件的软件化载荷产品开... 详细信息

传统以硬件形态为主的载荷产品设计方式,在开发进度、成本、可靠性保证、体积及质量等方面已无法满足批量化、迅捷化及低成本的航天任务发展需求和产品竞争.为了解决传统载荷产品的开发瓶颈,探索提出了一种面向硬件的软件化载荷产品开发及测试方法.该方法从载荷产品形态、通用架构及开发方式方面进行突破,实现了产品高度硬件软件化、集成化和通用化.在开展技术原理研究的同时,结合载荷典型应用完成了原理样机开发.与常规产品相比,这种软件化载荷产品质量、尺寸、功耗及生成效率方面均取得较大程度优化.由于软件化载荷产品实现了硬件电路软件化,具备丰富的可编程自定义测试接口,在此基础上对标软件测试标准,提出了基于软件化载荷产品的全态测试方法.该方法包括数据采集、数据与信息分析处理、供电监测及全态温度监测等,可实现载荷产品的全方位动态实时功能、性能监测,保证软件化载荷产品的可靠性.

关键词：通用软件化载荷产品软件测试全态测试测评

Complex network perspective on modelling chaotic systems via machine learning

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Chinese Physics B 2021年第6期30卷 211-215页

作者： Tong-Feng Weng xin-xin cao Hui-Jie Yang Institute of Information Economy and Alibaba Business College Hangzhou Normal UniversityHangzhou 311121China College of Science University of Shanghai for Science and TechnologyShanghai 200093China Business School University of Shanghai for Science and TechnologyShanghai 200093China

Recent advances have demonstrated that a machine learning technique known as "reservoir computing" is a significantly effective method for modelling chaotic systems. Going beyond short-term prediction, we show that long-term behaviors of an observed chaotic system are also preserved in the trained reservoir system by virtue of network measurements. Specifically, we find that a broad range of network statistics induced from the trained reservoir system is nearly identical with that of a learned chaotic system of interest. Moreover, we show that network measurements of the trained reservoir system are sensitive to distinct dynamics and can in turn detect the dynamical transitions in complex systems. Our findings further support that rather than dynamical equations, reservoir computing approach in fact provides an alternative way for modelling chaotic systems.

关键词： reservoir computing approach complex networks chaotic systems

Method for land cover classification accuracy assessment considering edges

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Science China Earth Sciences 2016年第12期59卷 2318-2327页

作者： LIU Meng cao xin LI Yang CHEN Jin CHEN XueHong State Key Laboratory of Earth Surface Processes and Resource Ecology Beijing Normal University College of Global Change and Earth System Science Beijing Normal University

Land cover, as the direct description of the Earth surface, has close relationships to the circle of global substances and energy, climate change, and economic activities of human society. The acquisition of land cover products is usually based on image classification. The accuracy of image classification is highly important to the monitoring and investigation of global environment as well as in decision-making support. Thus, classification accuracy assessment of land cover products is an important procedure. Given that many mixed pixels are located in between different classes, the accuracy of edge pixels tend to be lower than that of interior pixels. This scenario leads to the increment of heterogeneity to the classification accuracy of each class and to the increase of uncertainty of accuracy assessment. This study presents a method named stratified sampling considering edges(SSCE) based on traditional stratified sampling(SS) to optimize the process of classification accuracy assessment. Theoretical derivations and experimental results indicate that SSCE has high stability and accuracy on the estimation of overall accuracy and kappa. SSCE has high accuracy on estimating classification accuracy when only a few sampling points exist. SSCE needs less sampling points than SS under the same tolerance of error. The higher the difference on accuracy is and the more equal the areas between edge regions and interior regions are, the more accurate SSCE is on accuracy assessment. In a word, SSCE costs minimal sampling points. It also has high accuracy and stability on the assessment of land cover classification accuracy.

关键词： Land cover Classification accuracy assessment Stratified sampling Edges regions Interior regions

单一内标定量核磁法测定肺炎链球菌多糖抗原中荚膜多糖、C-多糖和磷含量

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中国药科大学学报 2024年第4期55卷 472-477页

作者：郭吉茹秦春君胡静曹欣徐永学刘建凯尹健江南大学生物工程学院糖化学与生物技术教育部重点实验室无锡214122 江南大学无锡医学院无锡214122 北京民海生物科技有限公司结合疫苗新技术研究北京市重点实验室北京102600 江南大学生命科学与健康工程学院无锡214122

肺炎糖疫苗在预防由肺炎链球菌引起的肺炎和脑膜炎等疾病中发挥关键作用。荚膜多糖、C-多糖和磷含量是疫苗研发和生产中多糖抗原质量控制的重要指标,研究发展了基于单一内标物六甲基磷酰三胺(hexamethylphosphoramide,HMPA)的定量1H NMR... 详细信息

肺炎糖疫苗在预防由肺炎链球菌引起的肺炎和脑膜炎等疾病中发挥关键作用。荚膜多糖、C-多糖和磷含量是疫苗研发和生产中多糖抗原质量控制的重要指标,研究发展了基于单一内标物六甲基磷酰三胺(hexamethylphosphoramide,HMPA)的定量1H NMR和31P NMR法,实现6A,6B,18C,19A,19F及23F型肺炎链球菌多糖抗原中荚膜多糖、C-多糖和磷含量的同步测定。利用内参物比较法,探究了多糖溶解性质对定量核磁测定的影响,发现定量1H NMR的测定结果受到多糖水溶液黏度和浓度的影响。发现高黏度多糖在3~15 mg/mL,低黏度多糖在5-25 mg/mL是最适检测液浓度范围。该“一内标三定量”NMR法具有良好的精密度、特异性和准确度,为肺炎链球菌疫苗的质量控制提供了一种有价值的新策略。

关键词：肺炎链球菌荚膜多糖定量1H NMR 定量31P NMR C-多糖磷

Complementary two-phase anode improving stability and conductivity for lithium storage performance

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Rare Metals 2023年第1期42卷 85-99页

作者： Xue-Fang Xie Guo-Zhao Fang Ying-Zhu Hu xin-xin cao Ting Zhu An-Qiang Pan School of Materials Science&Engineering Central South UniversityChangsha410083China

Metal chalcogenides with multiple lithium ions storage capability have received extensive attentions in recent years;however,their practical application is restricted by the structural instability and poor ***,a unique structure of N and S co-doped C/TiO_(2)nanofibers is reported to support SnS nanosheets for fast and ultra-stable lithium *** incorporation of TiO_(2)can notably suppress the excessive uncontrollable growth of SnS and improve the structural stability of the electrode *** effects of the ratios between Ti and Sn and the corresponding synthesis temperatures on the structure and electrochemical properties of the electrodes have been systematically *** interface charge transfer behavior of SnS and TiO_(2)composite heterostructure was clarified by density functional theory(DFT)*** electronic interaction SnS and TiO_(2)can effectively reduce the energy band gap and form a built-in electric field at the interface of the two *** is beneficial for the adsorption of lithium ion and consequently accelerate the reaction kinetics of the electrode *** the two phases are combined,the agglomeration of SnS is effectively suppressed,and the overall conductivity of the composite is greatly ***,the synergistic effect induced by SnS and TiO_(2)enables the good stability of the electrode in both lithium-ion half-cells and full *** work can provide new insights toward improving the performance of alloy-type anodes.

关键词： SnS TiO_(2) Structural stability Battery

室温固相反应助力制备氮硫共掺杂碳限域的FeCoS_(2)复合物用于高性能钠离子电池负极

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无机化学学报 2024年第1期40卷 145-154页

作者：马文龙刘桑鑫周钺吴平曹鑫朱晓舒魏少华周益明南京师范大学化学与材料科学学院江苏省新型动力电池重点实验室南京210023 南京晓庄学院环境科学学院南京211171 南京师范大学分析测试中心南京210023

利用室温固相自组装反应制备Co和Fe双席夫碱配合物,随后在硫粉存在下中温热处理,使该配合物同时发生热解碳化和固相硫化反应,从而获得N、S共掺杂碳限域的FeCoS_(2)纳米复合物(记为FeCoS_(2)■NSC)。通过粉末X射线衍射、透射电镜、X射线... 详细信息

利用室温固相自组装反应制备Co和Fe双席夫碱配合物,随后在硫粉存在下中温热处理,使该配合物同时发生热解碳化和固相硫化反应,从而获得N、S共掺杂碳限域的FeCoS_(2)纳米复合物(记为FeCoS_(2)■NSC)。通过粉末X射线衍射、透射电镜、X射线光电子能谱和热重分析技术分别对纳米复合物的物相、形貌结构、组分和含量等进行物理表征,并通过循环伏安、恒电流充放电技术测试其电化学储钠性能。研究结果表明,最优化条件下制备的复合物(FeCoS_(2)■NSC-7001)中FeCoS_(2)粒子的平均尺寸约为3.4 nm,且被均匀限域在N、S共掺杂的碳基体中;该复合物作为钠离子电池负极时,在0.1 A·g^(-1)的电流密度下经过300次充放电循环,其可逆充电比容量仍高达310.4 mAh·g^(-1);即使在5 A·g^(-1)的大电流密度下,其充电比容量也高达146.0 mAh·g^(-1),呈现优异的电化学储钠性能。

关键词：钠离子电池负极材料 FeCoS_(2)纳米晶 N、S共掺杂碳材料纳米复合物室温固相反应

血清TgAb、TpoAb、25(OH)D水平与妊娠期糖尿病合并甲状腺功能减退患者妊娠结局的相关性分析

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中国实用医刊 2024年第9期51卷 55-58页

作者：郭利佩曹馨李慧娟西电集团医院妇产科西安710077

目的探讨血清甲状腺球蛋白抗体(TgAb)、甲状腺过氧化物酶抗体(TpoAb)、25-羟基维生素D[25(OH)D]水平与妊娠期糖尿病合并甲状腺功能减退患者妊娠结局的相关性。方法回顾性抽取2021年3月至2023年3月西电集团医院收治的孕24~28周妊娠期糖... 详细信息

目的探讨血清甲状腺球蛋白抗体(TgAb)、甲状腺过氧化物酶抗体(TpoAb)、25-羟基维生素D[25(OH)D]水平与妊娠期糖尿病合并甲状腺功能减退患者妊娠结局的相关性。方法回顾性抽取2021年3月至2023年3月西电集团医院收治的孕24~28周妊娠期糖尿病合并甲状腺功能减退的82例患者为观察组,其中不良妊娠结局者35例,良好妊娠结局者47例。另抽取同期孕24~28周单纯妊娠期糖尿病的82例患者为对照组。比较两组及观察组中不同妊娠结局者入院时血清TgAb、TpoAb、25(OH)D水平,分析三项血清指标与合并甲状腺功能减退、不良妊娠结局的相关性及其对不良妊娠结局的诊断效能,分析入院时三项指标不同水平者发生不良妊娠结局的危险度。结果入院时,观察组血清TgAb、TpoAb水平高于对照组,25(OH)D水平低于对照组(P<0.05)。不良妊娠结局者入院时血清TgAb、TpoAb水平高于良好妊娠结局者,25(OH)D水平低于良好妊娠结局者(P<0.05)。入院时血清TgAb和TpoAb水平与合并甲状腺功能减退、不良妊娠结局呈正相关(P<0.05);入院时血清25(OH)D水平与合并甲状腺功能减退、不良妊娠结局呈负相关(P<0.05)。入院时三项血清指标联合预测不良妊娠结局的曲线下面积为0.82,最佳预测敏感度为91.43%,特异度为72.34%。入院时血清TgAb、TpoAb、25(OH)D高水平者发生不良妊娠结局的危险度是低水平者的3.529、2.930、0.389倍(P<0.05)。结论血清TgAb、TpoAb、25(OH)D水平与妊娠结局及合并甲状腺功能减退密切相关,且血清三项指标联合检测预测妊娠结局的价值较高。

关键词：妊娠期糖尿病甲状腺功能减退甲状腺球蛋白抗体甲状腺过氧化物酶抗体 25-羟基维生素D

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船舶光储发电系统的优化设计

计算机与数字工程 2024年第3期52卷 729-734页

作者：朱晓琳庞科旺曹昕江苏科技大学电子信息学院镇江212100 哈尔滨工程大学智能科学与工程学院哈尔滨150001

根据船舶运行环境的特殊性,论文提出将人工蜂群算法应用于船舶光伏发电最大功率点跟踪控制,以保证光伏系统运行在船舶环境下具有良好的最大功率点跟踪性能。同时,为减小外界环境对船舶电力系统的影响,引入储能装置并提出嵌入重复控制的D... 详细信息

根据船舶运行环境的特殊性,论文提出将人工蜂群算法应用于船舶光伏发电最大功率点跟踪控制,以保证光伏系统运行在船舶环境下具有良好的最大功率点跟踪性能。同时,为减小外界环境对船舶电力系统的影响,引入储能装置并提出嵌入重复控制的DC/DC变换器复合控制策略,以提高光伏发电的稳定性,维持船舶直流母线电压。经实验证明,论文提出的MPPT方法能实现准确快速跟踪、变换器的复合控制策略能维持光伏稳定发电。

关键词：船舶光伏发电人工蜂群算法最大功率点跟踪光储系统复合控制

An indicator of designing layered sodium-ion oxide materials

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Science Bulletin 2021年第8期66卷 753-754页

作者： xin cao Haoshen Zhou National Laboratory of Solid State Microstructures&Department of Energy Science and Engineering Nanjing UniversityNanjing 210093China Energy Technology Research Institute National Institute of Advanced Industrial Science and Technology(AIST)Tsukuba 305-8568Japan Graduate School of System and Information Engineering University of TsukubaTsukuba 305-8573Japan

Sodium-ion batteries have been achieving widespread attentions in grid-scale electrical energy storage systems owing to their earth abundant resources[1].However,the energy-density ceiling from cathode materials has b... 详细信息

关键词：氧化物材料钠离子 earth