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Fault detectability of Boolean control networks via nonaugmented methods

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Science China(Information Sciences) 2023年第12期66卷 94-106页

作者： Rong ZHAO caixia wang Yongyuan YU Jun-E FENG School of Mathematics Shandong University

This study is concerned with the fault detectability of Boolean control networks(BCNs) by two nonaugmented methods. Firstly, the equivalent system-based approach is considered, and the equivalence of BCNs is applied to analyze weak active fault detectability. Further, an iterative matrix set-based approach is proposed, by which, several novel criteria for strong and weak active fault detectability are ***, effective algorithms are designed to check strong and weak active fault detectability and generate all feasible input sequences with the minimum length. In comparison, our results reduce the computational complexity dramatically than the existing studies.

关键词： Boolean control network fault detectability equivalent system nonaugmented method semi-tensor product

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基于认知特征分析的学龄前儿童家具设计

家具 2024年第2期45卷 49-53,82页

作者：贾如意张继娟王彩霞中南林业科技大学家具与艺术设计学院长沙410004

随着家具市场的不断细分,儿童家具逐渐成为家庭中的重要部分。学龄前阶段是儿童认知能力培养的黄金阶段,儿童家具是儿童日常交互较密切的产品,对学龄前儿童认知特征进行研究,以提高学龄前儿童认知能力的培养,扩展学龄前儿童家具的功能... 详细信息

随着家具市场的不断细分,儿童家具逐渐成为家庭中的重要部分。学龄前阶段是儿童认知能力培养的黄金阶段,儿童家具是儿童日常交互较密切的产品,对学龄前儿童认知特征进行研究,以提高学龄前儿童认知能力的培养,扩展学龄前儿童家具的功能性。通过市场调研对现有市场中的儿童家具进行痛点分析,通过皮亚杰认知发展理论对学龄前儿童在感知运动阶段、前运算阶段的认知特点进行研究,探索出学龄前儿童的认知需求。重点分析学龄前儿童的认知特点,并以学龄前儿童绘本架为例,将该阶段重点培养儿童颜色认知、形状认知、颜色配对、形状配对、数字认知等几个方面与儿童爱玩的天性进行结合,为未来学龄前儿童家具设计提供参考。

关键词：学龄前儿童认知特征儿童家具家具设计

耦合模式FGOALS-g3对全球海洋潮汐的模拟评估

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海洋学报 2024年第8期46卷 63-73页

作者：黄新禹王彩霞魏吉林于子棚田志伟刘海龙中国海洋大学物理海洋教育部重点实验室山东青岛266100 中国科学院大气物理研究所大气科学和地球流体力学数值模拟国家重点实验室北京100029 崂山实验室山东青岛266237

潮汐在海洋能量的传递和混合过程中起着重要的作用,为维持全球热盐环流提供了主要的能量,影响着全球的海洋环流。此前已有工作在低分辨率的、单独的海洋模式中研究潮汐作用对海洋环流状态的敏感性,为进一步研究潮汐作用对环流和气候状... 详细信息

潮汐在海洋能量的传递和混合过程中起着重要的作用,为维持全球热盐环流提供了主要的能量,影响着全球的海洋环流。此前已有工作在低分辨率的、单独的海洋模式中研究潮汐作用对海洋环流状态的敏感性,为进一步研究潮汐作用对环流和气候状态的敏感性,有必要将潮强迫引入到气候耦合模式中。本文成功地将8个主要平衡分潮显式地加入到耦合模式FGOALS-g3中,并评估了其对全球海洋潮汐的模拟能力,对于进一步研究潮汐对大尺度环流及气候状态的影响有重要意义。本文通过对模拟的海表面高度数据进行潮汐调和分析,得到各个分潮的调和常数,并将其与全球潮汐模型TPXO9和FES2014,以及开放海洋潮汐数据集st102进行对比。结果表明,FGOALS-g3耦合模式可以合理地模拟全球海洋中的正压潮,模拟结果与潮汐模型和实测数据集相比均比较接近。与这两套全球潮汐模型相比,均方误差均相对较小,且误差大多分布在振幅较大的区域。与st102数据集相比,FGOALS-g3模拟的8个主要分潮的平均振幅相对误差均在10%以内,且总均方误差均小于10 cm。

关键词：正压潮耦合模式潮汐调和分析

氟啶虫酰胺和螺虫乙酯在猕猴桃园中的降解及膳食风险评估

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园艺学报 2024年第6期51卷 1386-1402页

作者：乔成奎庄明田发军王彩霞庞涛陈如霞李晓光成昕谢汉忠中国农业科学院郑州果树研究所农业农村部果品质量安全风险评估实验室(郑州)郑州450009 中国农业大学理学院北京100193 农业农村部农产品质量安全中心北京100081

建立了高效液相色谱—三重四极杆串联质谱对猕猴桃果实和果园土壤中氟啶虫酰胺及其3种代谢物,螺虫乙酯及其4种代谢物的残留同时检测的方法,优化了净化条件。样品经1%乙酸乙腈涡旋提取,十八烷基键合相硅胶(C18)净化,多反应监测模式检测... 详细信息

建立了高效液相色谱—三重四极杆串联质谱对猕猴桃果实和果园土壤中氟啶虫酰胺及其3种代谢物,螺虫乙酯及其4种代谢物的残留同时检测的方法,优化了净化条件。样品经1%乙酸乙腈涡旋提取,十八烷基键合相硅胶(C18)净化,多反应监测模式检测。氟啶虫酰胺及其3种代谢物和螺虫乙酯及其4种代谢物在0.005~1.000 mg·L^(-1)质量浓度范围内线性关系良好,决定系数为0.9921~0.9999;在猕猴桃和土壤中的基质效应为0.04~1.04,采用基质标准曲线进行定量分析;在0.005~0.500 mg·kg^(-1)的添加水平下,各化合物的平均回收率为71%~117%,相对标准偏差为0.3%~10.5%;适用于猕猴桃和土壤中氟啶虫酰胺及其3种代谢物,螺虫乙酯及其4种代谢物残留的快速检测。残留试验结果显示,氟啶虫酰胺和螺虫乙酯在猕猴桃和土壤中的消解动态符合一级动力学方程;相比单独施用,混合施用对氟啶虫酰胺在猕猴桃和土壤中的半衰期均有影响,而对螺虫乙酯无显著影响。混合施用时,土壤中螺虫乙酯的代谢物残留量显著增加甚至高于螺虫乙酯母体,尤其是代谢物S-enol。最终残留检测结果显示,在果实中检出了氟啶虫酰胺及其代谢物TFNG,螺虫乙酯及其代谢物S-mono、S-keto和S-enol,残留量在0.005~3.445mg·kg^(-1)之间;在土壤中只检出了螺虫乙酯代谢物S-keto和S-enol残留。相关性分析表明,氟啶虫酰胺和螺虫乙酯及其代谢物在猕猴桃果实中的,螺虫乙酯代谢物在土壤中的残留量均与施药剂量、施药次数呈正相关,与采收间隔期呈负相关。膳食风险评估结果表明,氟啶虫酰胺和螺虫乙酯的短期膳食摄入风险可接受;螺虫乙酯对普通人群没有长期膳食摄入风险,而氟啶虫酰胺可能对普通人群存在长期膳食摄入风险。

关键词：氟啶虫酰胺螺虫乙酯农药残留猕猴桃代谢物联合使用风险评估

Atmospheric heterogeneous reaction of acetone:Adsorption and desorption kinetics and mechanisms on SiO_2 particles

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Chinese Science Bulletin 2008年第7期53卷 1004-1010页

作者： JIE ChongYu CHEN ZhongMing wang HongLi HUA Wei wang caixia LI Shuang The State Key Laboratory of Environmental Simulation and Pollution Control College of Environmental Sciences and Engineering Peking University Beijing 100871 China

Acetone plays an important role in photooxidation processes in the atmosphere. Up to date, little is known regarding the heterogeneous fate of acetone. In this study, the adsorption and desorption processes of acetone on SiO2 particles, which are the major constituent of mineral dust in the atmos-phere, have been investigated for the first time under the simulated atmospheric conditions, using in situ transmission Fourier transform infrared spectroscopy. It is found that acetone molecules are ad-sorbed on the surfaces of SiO2 particles by van der Waals forces and hydrogen bonding forces in a nonreactive and reversible state. The rates of initial adsorption and initial desorption, initial uptake coefficients and adsorption concentrations at equilibrium have been determined at different relative humidity. The presence of water vapor cannot result in the formation of new substances, but can de-crease the adsorption ability by consuming or overlapping the isolated OH groups on the surfaces of SiO2 particles. In the desorption process, a considerable amount of acetone molecules will remain on SiO2 particles in dry air, whereas acetone molecules are almost completely desorbed at a high relative humidity. In order to evaluate the role of heterogeneous reactions of acetone and other carbonyl compounds in the atmosphere, a new model fitting the atmospheric conditions is needed.

关键词：丙酮大气反射吸附作用脱附作用二氧化硅

Coupling virio-and bacterioplankton populations with environmental variable changes in the Bohai Sea

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Acta Oceanologica Sinica 2020年第6期39卷 72-83页

作者： caixia wang Lin Wu Yibo wang James S.Paterson James G.Mitchell Xiaoke Hu Key Laboratory of Coastal Biology and Bioresource Utilization Yantai Institute of Coastal Zone ResearchChinese Academy of SciencesYantai 264003China Laboratory for Marine Biology and Biotechnology Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266237China University of Chinese Academy of Sciences Beijing 100049China Ocean School Yantai UniversityYantai 264003China College of Science and Engineering Flinders UniversityAdelaideSA 5001Australia

Uncovering the role of environmental factors and finding critical factors which harbor significant fractions in governing microbial communities remain key questions in coastal marine *** detect the interactions between environmental factors and distributions of virio-and bacterioplankton in trophic coastal areas,we used flow cytometry to investigate the abundance of virio-and bacterioplankton covering 31 stations in the Bohai Sea of *** results suggested that the average abundance of total virus(TV)in winter(~2.29×108 particles/mL)was slightly lower than in summer(~3.83×108 particles/mL).The mean total bacterial abundance(TB)was much lower in winter(~2.54×107 particles/mL)than in summer(~5.43×107 particles/mL).Correlation analysis via redundancy analysis(RDA)and network analysis among virioplankton,bacterioplankton and environmental factors revealed that the abundances of viral and bacterial subpopulations depend on environmental *** winter,only temperature significantly influenced the abundances of virio-and *** summer,in addition to temperature,both salinity and nutrient(SiO2)had a remarkable impact on the distribution of virioand *** results showed a clear seasonal and trophic pattern throughout the whole water system,which revealed that temperature and eutrophication may play crucial roles in microbial distribution pattern.

关键词： virioplankton bacterioplankton flow cytometry network Bohai Sea

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基于多模腔体的太赫兹准椭圆响应滤波器设计

空间电子技术 2024年第4期21卷 86-91页

作者：黄永超修韬王彩霞朱忠博中国电子科技集团第十三研究所石家庄050057 中国空间技术研究院西安分院西安710000

随着通信技术的发展,太赫兹频段已然成为6G通信的热点频段,对于相关器件的研究也愈加深入。文章基于易于加工的金属波导结构进行设计,以通带212GHz~218GHz为指标,设计了两款具有准椭圆响应的太赫兹滤波器。所设计滤波器利用TE 201谐振... 详细信息

随着通信技术的发展,太赫兹频段已然成为6G通信的热点频段,对于相关器件的研究也愈加深入。文章基于易于加工的金属波导结构进行设计,以通带212GHz~218GHz为指标,设计了两款具有准椭圆响应的太赫兹滤波器。所设计滤波器利用TE 201谐振腔引入传输零点,提升滤波器的矩形系数。该滤波器通过对腔体间耦合结构的位置与尺寸的控制,以调节耦合关系,进而调整传输零点位置,实现不同带外抑制度的带通滤波器,其具有较好的设计灵活性,且成本低廉。仿真设计结果显示,滤波器1通带为211.91GHz~218.17GHz,带内插入损耗小于1.38dB,且在209.80GHz和220.54GHz具有两个传输零点;滤波器2通带为211.78GHz~218.36GHz,带内插入损耗小于1.21dB,且在220.41GHz和221.82GHz具有两个传输零点,均具备较好的电气性能。

关键词：太赫兹多模腔体准椭圆响应,带通滤波器

Magnetic properties and critical behavior of quasi-2D layered Cr_(4)Te_(5)thin film

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Frontiers of physics 2023年第1期18卷 141-151页

作者： Hao Liu Jiyu Fan Huan Zheng Jing wang Chunlan Ma Haiyan wang Lei Zhang caixia wang Yan Zhu Hao Yang Department of Applied Physics College of PhysicsNanjing University of Aeronautics and AstronauticsNanjing 211106China Key Laboratory of Aerospace Information Materials and Physics(NUAA) MIITNanjing 211106China Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application School of Mathematics and PhysicsSuzhou University of Science and TechnologySuzhou 215009China School of Materials Engineering Purdue UniversityWest LafayetteIN 47907USA High Magnetic Field Laboratory Chinese Academy of SciencesHefei 230031China College of Physics Science and Technology Yangzhou UniversityYangzhou 225002China

Quasi-2D layered Cr4Te5 thin film has attracted great attention because it possesses the high Curie temperature close to room temperature and relatively large saturation ***,the magnetic interactions and the nature of magnetic phase transition in the Cr4Te5 film have not been explored *** this paper,we focused on the critical behavior of its magnetic phase transition through the epitaxial Cr4Te5 film fabricated by pulsed laser deposition(PLD).The final critical exponentsβ=0.359(2)andγ=1.54(2)were obtained by linear extrapolation together with ArrottNoakes equation of state,and their accuracy was confirmed by using the Widom scaling relation and scaling *** find that some magnetic disorders exist in the Cr4Te5 film system,which is related to Cr4Te5 critical behavior why its critical behavior is quite far from any conventional universality ***,we also determined that the Cr4Te5 film exhibits a quasi-2D long-range magnetic ***,the itinerant ferromagnets of Cr4Te5 films were confirmed by the Takahashi’s self-consistent renormalization theory of spin *** work provides a new idea for understanding the mechanism of magnetic interactions in similar 2D layered films.

关键词： interaction film critical

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基于槽线的太赫兹同相和反相功分器设计

太赫兹科学与电子信息学报 2024年第6期22卷 605-609页

作者：张长路朱忠博王彩霞金生霄中国空间技术研究院西安分院陕西西安710100

根据接地共面波导(GCPW)和槽线的结构特点,首先设计并仿真验证了一种由接地共面波导到槽线的功分器;然后根据槽线横截面的电场分布特性,设计了一种GCPW-槽线-GCPW结构的同相功分器和反相功分器。仿真结果表明,同相功分器在175~225 GHz... 详细信息

根据接地共面波导(GCPW)和槽线的结构特点,首先设计并仿真验证了一种由接地共面波导到槽线的功分器;然后根据槽线横截面的电场分布特性,设计了一种GCPW-槽线-GCPW结构的同相功分器和反相功分器。仿真结果表明,同相功分器在175~225 GHz范围内的插入损耗优于4 dB,回波损耗优于9.6 dB;反相功分器在185~215 GHz范围内的插入损耗优于4 dB,回波损耗优于10.5 dB,幅度不平衡度小于0.24 dB,相位不平衡度小于1.3°。相比其他太赫兹功分器,本文设计的功分器在插入损耗和回波损耗相当的情况下,具有更简单、紧凑和易于集成的结构。

关键词：功分器槽线接地共面波导过渡结构太赫兹