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集成电路应用 2024年第7期41卷 344-345页

作者：赵翠妹李坤国网邯郸供电公司河北056002

阐述基于地下电缆的智能运维关键技术应用,包括传感技术在地下电缆监测、数据采集与通信技术、数据分析与预测算法、自动化维护与远程操作技术、安全与隐私保护技术的应用。

关键词：电缆工程智能运维预测算法远程操作

Multi-ion intercalated Ti_(3)C_(2)T_(x)MXene and the mutual modulation within interlayer

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Particuology 2023年第1期72卷 10-16页

作者： Zhihe Wang Yixuan Wang Qinhua Gu cuimei zhao Junkai Zhang Shichong Xu Ming Lu Bingsen Zhang Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education the Joint Laboratory of MXene MaterialsKey Laboratory of Preparation and Application of Environmental Friendly Materials of the Ministry of EducationJilin Normal UniversityChangchun 130103China Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China School of Materials Science and Engineering University of Science and Technology of ChinaShenyang 110016China

Intercalation of ions between the adjacent MXene layers can change the interlayer environment and influence the electrochemical ion storage *** order to understand the effect of multi-ions confined by the MXene layers on the performance of electrochemical energy storage,Co^(2+),Mn^(2+)and Ni^(2+)intercalated into Ti_(3)C_(2)T_(x)MXene which already pre-intercalated Al3+are obtained by spontaneous static *** on the monitor of(002)crystal orientation,intercalated multi-ions can regulate and control the interlayer environment of MXenes via stress,which induces lattice shrinkage occurring in the c *** by ion storage mechanism-performance,the multi-ion occupies the interspace of MXene and affects the electrochemical *** work would offer guidance to understand the relationship among the multi-ion and MXene by two-dimensional(2D)layered materials.

关键词： MXene lon pre-intercalation Interlayer Transition metal ion

Interlayer environment engineered MXene: Pre-intercalated Zn^(2+)ions as intercalants renders the modulated Li storage

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Journal of Energy Chemistry 2022年第5期31卷 306-313页

作者： Yixuan Wang Miao Liu Zhihe Wang Qinhua Gu Bo Liu cuimei zhao Junkai Zhang Shichong Xu Ming Lu Haibo Li Bingsen Zhang Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education The Joint Laboratory of MXene MaterialsJilin Normal UniversityChangchun 130103JilinChina Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016LiaoningChina Key Laboratory of Preparation and Application of Environmental Friendly Materials of the Ministry of Education Jilin Normal UniversityChangchun 130103JilinChina School of Materials Science and Engineering University of Science and Techonology of ChinaShenyang 110016LiaoningChina

The intercalation of foreign species into MXene, as an approach of tuning the interlayer environment, is employed to improve electrochemical ion storage behaviors. Herein, to understand the effect of confined ions by the MXene layers on the performance of electrochemical energy storage, Zn^(2+) ions were employed to intercalate into MXene via an electrochemical technique. Zn^(2+) ions induced a shrink of the adjacent MXene layers. Meaningfully, a higher capacity of lithium ion storage was obtained after Zn^(2+) preintercalation. In order to explore the roles of the intercalated Zn^(2+) ions, the structural evolution, and the electronic migration among Zn, Ti and the surface termination were investigated to trace the origination of the higher Li^(+) storage capacity. The pre-intercalated Zn^(2+) ions lost electrons, meanwhile Ti of MXene obtained electrons. Moreover, a low-F surface functional groups was achieved. Contrary to the first shrink, after 200 cycles, a larger interlayer distance was monitored, this can accelerate the ion transport and offer a larger expansile space for lithium storage. This may offer a guidance to understand the roles of the confined ion by two-dimensional(2D) layered materials.

关键词： Ti_(3)C_(2)T_(x)MXene Zinc ions Interlayer intercalation Lithium storage

Mid-ventricular hypertrophic obstructive cardiomyopathy(MVHOCM) complicated with coronary artery disease:a case report

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Journal of Geriatric Cardiology 2008年第3期5卷 190-192页

作者： Haoming Song cuimei zhao Jinfa Jiang Yang Liu Yihan Chen Department of Cardiology,Tongji Hospital, Tongji University, Shanghai, 200065, P.R.China Dept. of Cardiology Tongji Hospital Tongji University 389 Xincun Rd. Shanghai 200065 China

Mid-ventricular hypertrophic obstructive cardiomyopathy (MVHOCM) is a rare type ofcardiomyopathy that can be accompanied by apical *** presented here a case report of MVHOCM with cornary artery *** sixty-four years old man was sent to hospital because ofventricular *** inversion T wave was showed on electrocardiography in the presence of abnormal coronary arteries and normal cardiac *** showed an hourglass appearance of the left ventricle with an aneurysm in the apex and a pressure gradient between the outflow tract of left ventricle and the middle of the left ventricle was revealed by left-heart catheterization.

关键词： hypertrophic obstructive cardiomyopathy coronary artery disease echocardiography

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继电保护二次回路的缺陷与应对策略

今日自动化 2023年第9期 51-53页

作者：李坤赵翠妹国网邯郸供电公司河北邯郸056002

在变电站运行过程中,二次回路发挥着重要作用。实际运行的过程中,若二次回路故障,则设备运行会受到直接影响。由于二次回路的主要功能是与二次设备连接,所以其若存在缺陷故障,会造成大范围影响,甚至导致一次设备损坏,最终出现大范围停... 详细信息

在变电站运行过程中,二次回路发挥着重要作用。实际运行的过程中,若二次回路故障,则设备运行会受到直接影响。由于二次回路的主要功能是与二次设备连接,所以其若存在缺陷故障,会造成大范围影响,甚至导致一次设备损坏,最终出现大范围停电问题,影响电力系统运行效益,同时带来安全隐患。所以,要强化二次回路检查工作,及时发现继电保护二次回路的缺陷,同时采取有效的应对策略,文章对此进行了相关的阐述和分析。

关键词：继电保护二次回路缺陷

Automatic modeling algorithm of stochastic error for inertial sensors

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Control Theory and Technology 2024年第1期22卷 81-91页

作者： Luodi zhao Long zhao School of Automation Science and Electrical Engineering Beihang UniversityBeijing100191China Digital Navigation Center Beihang UniversityBeijing100191China Science and Technology on Aircraft Control Laboratory Beihang UniversityBeijing100191China

This paper proposes an automatic algorithm to determine the properties of stochastic processes and their parameters for inertial error. The proposed approach is based on a recently developed method called the generalized method of wavelet moments (GMWM), whose estimator was proven to be consistent and asymptotically normally distributed. This algorithm is suitable mainly (but not only) for the combination of several stochastic processes, where the model identification and parameter estimation are quite difficult for the traditional methods, such as the Allan variance and the power spectral density analysis. This algorithm further explores the complete stochastic error models and the candidate model ranking criterion to realize automatic model identification and determination. The best model is selected by making the trade-off between the model accuracy and the model complexity. The validation of this approach is verified by practical examples of model selection for MEMS-IMUs (micro-electro-mechanical system inertial measurement units) in varying dynamic conditions.

关键词： GMWM Stochastic process Inertial sensor Sensor calibration Error model Allan variance

Meeting the challenges of invasive alien species

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National Science Review 2024年第3期11卷 296-298页

作者： Weijie zhao NSR news

The Xinjiang Uygur Autonomous Region of China is famous for its tomato production. Abundant sunshine, large day–night temperature difference and the abundant irrigation by snowmelt from the Tianshan Mountains produce...

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Ling-Ling Chen: RNA has its own features;don't study it as a protein

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National Science Review 2024年第2期11卷 301-305页

作者： Weijie zhao NSR

Non-coding RNA(ncRNA) has been a very active research area over the past 30 years. From small nc RNA – the discovery of RNA interference won the lead researchers the Nobel Prize, to long ncRNA(lncRNA), which has attracted much attention in recent years, various nc RNAs participate in all kinds of biological processes and show a variety of biomedical application prospects.

关键词： RNA

One dimensional CeO_(2) nanorods/poly(ethylene oxide) solid composite electrolyte for all-solid-state lithium-ion batteries

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Journal of Rare Earths 2024年第3期42卷 570-577,I0005页

作者： Yudi Guo Erqing zhao Xiaofang zhao Shuailei Liu School of Chemistry and Materials Engineering Xinxiang UniversityXinxiang453003China School of Chemistry and Chemical Engineering Henan Institute of Science and TechnologyXinxiang453003China

The research of poly(ethylene oxide)(PEO)-based solid composite electrolyte with high ionic conductivity and excellent interfacial stability is the key to the development of all-solid-state lithium-ion batteries(ASSLIBs). Herein, uniform nanorod structured CeO_(2) fillers were controllably synthesized by electrospinning, which were subsequently filled into PEO polymer to prepare CeO_(2)/PEO solid composite electrolyte. The addition of CeO_(2) nanorods can reduce both the glass transition temperature and the melting point of PEO polymer, and also interact with PEO and lithium bis(trifluoromethanesulphonyl)imide(LITFSI) by Lewis acid—base reaction. Therefore, the solid composite electrolyte exhibits a high ionic conductivity of 4.52 × 10^(-4)S/cm, a wide electrochemical stability window of about 4.8 V, and a good interfacial stability with Li at 55℃. Moreover, the LiFePO_4/Li ASSLIB divulges the discharging specific capacity of 165, 162, 156 and 146 mA,h/g at 0.2, 0.5, 1 and 2 C, respectively, and achieves the capacity retention of 90.3% after 150 cycles at 0.5 C. Consequently, one dimensional CeO_(2) nanorods can be considered as an alternative filler for polymeric solid electrolyte.

关键词： Poly(ethylene oxide) Solid composite electrolyte CeO_(2)nanorods Ionic conductivity Rare earths

A DIRECT DISCONTINUOUS GALERKIN METHOD FOR TIME FRACTIONAL DIFFUSION EQUATIONS WITH FRACTIONAL DYNAMIC BOUNDARY CONDITIONS

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Journal of Computational Mathematics 2024年第1期42卷 156-177页

作者： Jingjun zhao Wenjiao zhao Yang Xu School of Mathematics Harbin Institute of TechnologyHarbin 150001China

This paper deals with the numerical approximation for the time fractional diffusion problem with fractional dynamic boundary *** well-posedness for the weak solutions is studied.A direct discontinuous Galerkin approach is used in spatial direction under the uniform meshes,together with a second-order Alikhanov scheme is utilized in temporal direction on the graded mesh,and then the fully discrete scheme is ***,the stability and the error estimate for the full scheme are analyzed in *** experiments are also given to illustrate the effectiveness of the proposed method.

关键词： Time fractional diffusion equation Numerical stability Convergence