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The Crop Journal 2021年第6期9卷 1263-1269页

作者： Zi Shi Wen Ren Yanxin Zhao Xiaqing wang Ruyang Zhang Aiguo Su Shuai wang Chunhui Li jiarong wang Shuaishuai wang Yunxia Zhang Yulong Ji Wei Song Jiuran Zhao Beijing Key Laboratory of Maize DNA Fingerprinting and Molecular Breeding Maize Research CenterBeijing Academy of Agriculture&Forestry SciencesBeijing 100097China

Genic male sterility(GMS) is one of the most important resources for exploiting heterosis in crop breeding, so that identifying genomic loci regulating GMS is desirable. However, many regulatory genes controlling GMS have not yet been characterized in maize, owing partly to a lack of genetic materials. We generated a recessive male-sterile maize mutant in the Jing 724 genetic background via ethyl methanesulfonate treatment, and found the male sterility to be due to a single gene mutation. Bulk-segregant RNA sequencing of three replicates indicated that one genomic region located at the end of chromosome 4 was associated with the observed mutant phenotype. Among genes with nonsynonymous mutations,Zm00001 d053895(bHLH51) showed abolished expression in the sterile bulks and was annotated as a bHLH transcription factor orthologous to Arabidopsis AMS, suggesting an association with the male sterility of the mutant. Kompetitive Allele-Specific PCR assays further validated the exclusive correlation of male sterility with the single C-to-T mutation in the fifth exon. The new maize mutant and the potential SNP locus provide novel genetic material for investigating the molecular mechanism underlying tapetal development and may facilitate the improvement of hybrid production systems.

关键词： Genic male sterility EMS-induced mutant BSR-seq bHLH51 Maize

Enhanced exciton diffusion from interlayer charge-transfer transitions in PtSe2/MoSe_(2) van der Waals heterojunction

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Nano Research 2023年第11期16卷 12809-12816页

作者： jiarong wang Dawei He Zhiying Bai Guili Li Jinxuan Bai Keqin Liu Fangying Ren Xiaojing Liu Jiaqi He Weiya Zhou Jianlin Sun Yongsheng wang Xiaoxian Zhang Yuchao Yang Key Laboratory of Luminescence and Optical Information Ministry of EducationInstitute of Optoelectronic TechnologyBeijing Jiaotong UniversityBeijing 100044China Beijing Advanced Innovation Center for Integrated Circuits School of Integrated CircuitsPeking UniversityBeijing 100871China School of Electronic and Computer Engineering Peking UniversityShenzhen 518055China Center for Brain Inspired Chips Institute for Artificial IntelligenceFrontiers Science Center for Nano-optoelectronicsPeking UniversityBeijing 100871China Center for Brain Inspired Intelligence Chinese Institute for Brain Research(CIBR)Beijing 102206China College of Mathematics and Physics Beijing University of Chemical TechnologyBeijing 100029China Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of SciencesBeijing 100190China School of Physical Sciences University of Chinese Academy of SciencesBeijing 100049China

Artificial van der Waals(vdWs)heterostructures offer unprecedented opportunities to explore and reveal novel synergistic electronic and optical phenomena,which are beneficial for the development of novel optoelectronic devices at atomic ***,due to the damage caused by the device fabrication process,their inherent properties such as carrier mobility are obscured,which hinders the improvement of device performance and the incorporation of vdWs materials into next-generation integrated ***,combining pump-probe spectroscopic and scanning probe microscopic techniques,the intrinsic optoelectronic properties of PtSe_(2)/MoSe_(2)heterojunction were nondestructively and systematically *** heterojunction exhibits a broad-spectrum optical response and maintains ultrafast carrier dynamics(interfacial charge transfer~0.8 ps and carrier lifetime~38.2 ps)*** in-plane exciton diffusion coefficient of the heterojunction was extracted(19.4±7.6 cm^(2)∙s^(−1)),and its exciton mobility as high as 756.8 cm^(2)∙V−1∙s^(−1)was deduced,exceeding the value of its *** enhancement was attributed to the formation of an n-type Schottky junction between PtSe_(2)and MoSe_(2),and its built-in electric field assisted the ultrafast transfer of photogenerated carriers from MoSe_(2)to PtSe_(2),enhancing the in-plane exciton diffusion of the *** results demonstrate that PtSe_(2)/MoSe_(2)is suitable for the development of broadspectrum and sensitive optoelectronic ***,the results contribute to a fundamental understanding of the performance of various optoelectronic devices based on such PtSe_(2)two-dimensional(2D)heterostructures.

关键词： van der Waals heterostructures ultrafast carrier dynamics exciton diffusion pump-probe spectroscopy scanning probe microscopy

四烯甲萘醌促进CD8^(+)T细胞激活和抗肿瘤效应

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军事医学 2024年第6期48卷 461-467页

作者：王佳荣梁丽云樊思淼张学敏李慧艳胡怀斌宋增庆国家生物医学分析中心北京100039

目的探究四烯甲萘醌(MK4)对CD8^(+)T细胞激活和抗肿瘤效应的影响。方法构建小鼠原代CD8^(+)T细胞体外培养与激活体系,通过磁珠法分选脾脏中CD8^(+)T细胞,将细胞置于提前包被CD3/CD28抗体的96孔板中激活培养。流式细胞术检测CD8^(+)T... 详细信息

目的探究四烯甲萘醌(MK4)对CD8^(+)T细胞激活和抗肿瘤效应的影响。方法构建小鼠原代CD8^(+)T细胞体外培养与激活体系,通过磁珠法分选脾脏中CD8^(+)T细胞,将细胞置于提前包被CD3/CD28抗体的96孔板中激活培养。流式细胞术检测CD8^(+)T细胞激活受体及效应因子表达情况,并通过酶联免疫吸附实验检测培养上清中效应因子含量,评估MK4对CD8^(+)T细胞激活及产生细胞因子的影响;将CD8^(+)T细胞与小鼠结直肠癌MC38细胞按不同比例共培养进行体外杀伤实验,通过检测肿瘤细胞凋亡情况评估MK4对CD8^(+)T细胞杀伤肿瘤细胞能力的影响。结果通过磁珠分选可得到高纯度的小鼠原代CD8^(+)T细胞(97.5%),CD8^(+)T细胞可被包被的CD3/CD28抗体激活并增殖。与对照组相比,CD8^(+)T细胞经MK4处理后,细胞表面激活受体CD25、CD69、CD44表达升高,效应因子白细胞介素-2、γ干扰素、肿瘤坏死因子α、颗粒酶B产生和分泌水平更高。此外,与对照组相比(29.1%),MK4处理组CD8^(+)T细胞诱导肿瘤细胞凋亡比例更高(36.7%)。结论 MK4可促进CD8^(+)T细胞激活及其杀伤肿瘤细胞的功能。

关键词：四烯甲萘醌 CD8^(+)T细胞抗肿瘤

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丙烯腈气体与氢氧化钠溶液反应动力学

化学反应工程与工艺 2008年第1期24卷 89-91页

作者：王家荣宁波工程学院化工学院浙江宁波315016

研究了鼓泡反应器中丙烯腈气体与氢氧化钠溶液的吸收反应过程。实验考察了丙烯腈气体在反应液中停留时间、反应温度及氢氧化钠溶液浓度对反应的影响,得到了该反应速率方程。其气液反应速率与丙烯腈气体浓度的1次方成正比,与NaOH溶液浓度... 详细信息

研究了鼓泡反应器中丙烯腈气体与氢氧化钠溶液的吸收反应过程。实验考察了丙烯腈气体在反应液中停留时间、反应温度及氢氧化钠溶液浓度对反应的影响,得到了该反应速率方程。其气液反应速率与丙烯腈气体浓度的1次方成正比,与NaOH溶液浓度的0.5次方成正比,反应活化能Ea值为36 kJ/mol,指前因子k0值为3.95×105s-1。

关键词：丙烯腈氨氧化钠吸收反应动力学

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云环境下跨层级间歇故障行为建模与量化分析

自动化应用 2024年第8期65卷 262-264页

作者：谢云开韦韬李江江严亮王佳荣朱遴海军研究院北京100072

间歇故障具有随机性,复杂的机理与表现会导致传统诊断方法不再有效,尤其是对于云计算环境,因为长时间运转、高负载运行以及集群规模大等因素致使间歇故障易感性居高。针对此问题,提出了一种基于跨层级间歇故障传播行为的建模与量化分析... 详细信息

间歇故障具有随机性,复杂的机理与表现会导致传统诊断方法不再有效,尤其是对于云计算环境,因为长时间运转、高负载运行以及集群规模大等因素致使间歇故障易感性居高。针对此问题,提出了一种基于跨层级间歇故障传播行为的建模与量化分析方法。该方法对间歇故障行为演化进行跟踪并量化分析,包括发现并记录故障在云环境不同层级的传播,构建传播路径,量化间歇故障对结构级、固件、超特权、特权和用户层级的影响,以及故障模型参数对系统影响的比较,以为云环境下间歇故障诊断策略提供辅助诊断信息和指导。

关键词：云计算间歇故障故障注入跨层级行为

Qualitative analysis of aromatic compounds via 1D TOCSY techniques

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Magnetic Resonance Letters 2024年第1期4卷 21-27页

作者： Wenbo Dong Qi Zhao Jiancheng Zhao jiarong Zhang Yingxiong wang Yan Qiao State Key Laboratory of Coal Conversion Institute of Coal ChemistryChinese Academy of Sciences27 South Taoyuan RoadTaiyuan030001China Graduate University of Chinese Academy of Sciences Beijing100049China Marine Biomedical Research Institution Guangdong Medical UniversityZhanjiang524023China College of Chemistry Taiyuan University of Technology79 Yingze West StreetWanbailin DistrictTaiyuan030024China

The aromatic compounds,including o-xylene,m-xylene,p-xylene,and ethylbenzene,primarily originate from the catalytic reforming of crude oil,and have a wide variety of ap***,because of similar physical and chemical properties,these compounds are difficult to be identified by gas chromatography(GC)without standard *** the development of modern nuclear magnetic resonance(NMR)techniques,NMR has emerged as a powerful and efficient tool for the rapid analysis of complex and crude mixtures without *** this study,the parameters of one-dimensional(1D)total correlation spectroscopy(TOCSY)NMR techniques,including 1D selective gradient TOCSY and 1D chemicalshift-selective filtration(CSSF)with TOCSY,were optimized to obtain comprehensive molecular structure *** results indicate that the overlapped signals in NMR spectra of nonpolar aromatic compounds(including o-xylene,m-xylene,p-xylene and ethylbenzene),polar aromatic compounds(benzyl alcohol,benzaldehyde,benzoic acid),and aromatic compounds with additional conjugated bonds(styrene)can be resolved in 1D *** importantly,full molecular structures can be clearly distinguished by setting appropriate mixing time in 1D *** approach simplifies the NMR spectra,provides structural information of entire molecules,and can be applied for the analysis of other structural isomers.

关键词： 1D TOCSY NMR technologies Xylenes Aromatic compounds Structure information of entire molecular Qualitative analysis

Parameter Identification for Fractional-order Chaotic System by Using Nelder–Mead Simplex Gravitational Search Algorithm

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Parameter Identification for Fractional-order Chaotic System...

Effect of phase-shift angle on 12-pulse star connection transformer system

第三十九届中国控制会议

作者： jiarong wang Unit 92228 of PLA

Aiming at parameter identification for fractional-order chaotic systems, a Nelder-Mead simplex gravitational search algorithm（NMGSA） is proposed. The search and replacement mechanism in the simplex search method and the particles update method in gravitational search algorithm is combined together in the proposed algorithm. Simplex search method has powerful local searching capacity, which is helpful for particles to jump out from local optimum, thus avoiding the gravitational search algorithm plunging falling into local optimum. Standard test functions are used to test the NMGSA, and the test results show that the algorithm has good stability and global search capability. Then, NMGSA is applied in the parameter identification for fractional-order Lorenz system. The results prove the effectiveness and robustness of NMGSA, when solve the problem of parameter identification of fractional-order chaotic system.

关键词： fractional-order chaotic system parameter identification gravitational search algorithm Nelder-Mead simplex search method

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Journal of Measurement Science and Instrumentation 2022年第2期13卷 192-197页

作者： HUANG Pingqi CHEN Xiaoqiang wang jiarong FU Juxia School of Automation and Electrical Engineering Lanzhou Jiaotong University Lanzhou 730070 China Rail Transit Electrical Automation Engineering Laboratory of Gansu Province Lanzhou Jiaotong University Lanzhou 730070 China School of Electric Engineering Xinjiang University Urumqi 830047 China

Based on the study of the harmonic suppression on DC side of the multi-pulse rectification system,a software platform is established in Matlab *** phase-shift angle is studied from the aspects of system stability and economy,analyzing the effects of phase-shift angle on the input-side line current,the output-side voltage ripple,the equivalent capacity of autotransformer and other auxiliary devices in 12-pulse rectifier *** software platform can complete the analysis only by inputting the initial conditions,eliminating the derivation of the intermediate formula and reducing the complexity of the system analysis,and have good *** simulation results show that the system can effectively analyze the influence of phase angle on 12-pulse star-connected transformer.

关键词： phase-shift angle autotransformer 12-pulse rectification system Matlab analysis

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一种新型电光晶体半波电压测量方法研究

仪器仪表学报 2023年第11期44卷 13-21页

作者：王佳荣贺博西安交通大学电气工程学院西安710049

本文通过分析晶体电光效应及折射率随电场变化规律,建立了电光调制数学模型并提出一种新的半波电压测量方法。该方法基于晶体两端所加电压幅值与系统输出波形之间数学模型,通过确定输出波形失真临界点推演晶体半波电压。为优化系统,分... 详细信息

本文通过分析晶体电光效应及折射率随电场变化规律,建立了电光调制数学模型并提出一种新的半波电压测量方法。该方法基于晶体两端所加电压幅值与系统输出波形之间数学模型,通过确定输出波形失真临界点推演晶体半波电压。为优化系统,分析了半波电压附近输出波形特性及光源、电源和时间分辨率与系统误差之间的关系并提出了两种优化方案——时间分辨率优化及对称优化。时间分辨率优化的方式通过放大单个波形细节可降低数据离散程度及误差。对称优化则是利用半波电压附近对应波形极值点对称特性,通过多次采样取平均或中值的方法降低误差。结果表明,临界值法是一种结构简单且有效的测量半波电压的方法,其优化方案在降低数据波动及误差方面效果良好。

关键词：折射率椭球半波电压临界值法电光效应调制特性

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The state-of-the-arts of the study on grid interconnection between Iberian Peninsula and West Maghreb region

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Global Energy Interconnection 2018年第1期1卷 20-28页

作者： Hong Shen Qian Dai Qi Wu Junling Wu Qinyong Zhou jiarong wang Wei Yang Rui Pestana Ricardo Pastor Global Energy Interconnection Development and Cooperation Organization No.8 Xuanwumennei StreetXicheng DistrictBeijing 100031P.R.China China Electric Power Research Institute Haidian DistrictBeijing 100192China North China Electric Power University Changping DistrictBeijingChina102206 R&D Nester–Centro de Investigacao em Energia REN-State Grid RuaCidade de GoaB 2685-038 SacavémLisbonPortugal.

With the change of energy structure in Europe and the trend of diversification of energy supply, the interconnection of the power grid in the Mediterranean region has gradually become a hotspot in European energy research. This paper introduces the power supply, load demand, power grid construction and the present situation of multinational interregional interconnection in the Iberian Peninsula of the Tour of Mediterranean in Europe(Portugal and Spain) and the Western Maghreb countries(Morocco and Algeria). And the driving force and influence factors of regional power grid interconnection are also analyzed. According to the MEDGRID project aimed at realizing the Mediterranean power grid interconnection, this paper presents the interconnection schemes of the Iberian Peninsula and the Western Maghreb. Furthermore, the subsequent technical problems need to be solved are also expounded.

关键词： Mediterranean power grid Interconnection driving factor POR-MAR interconnected power network