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神经解剖学杂志 2025年第1期41卷 89-93页

作者：成琦寇久社谢晓岩方素雯黄晨晨杜磊侯武刚王明辉陕西中医药大学咸阳712046 空军军医大学西京医院麻醉与围术期医学科西安710032

长期或过度的应激是焦虑症、抑郁症等多种精神类疾病的重要诱发因素,其相关环路及分子机制是近年来神经与精神科学研究的热点之一。习得性无助模型较好地反映了应激障碍的特征,对于深入阐明应激相关精神类疾病的发病机制,以及开发潜在... 详细信息

长期或过度的应激是焦虑症、抑郁症等多种精神类疾病的重要诱发因素,其相关环路及分子机制是近年来神经与精神科学研究的热点之一。习得性无助模型较好地反映了应激障碍的特征,对于深入阐明应激相关精神类疾病的发病机制,以及开发潜在的治疗靶点具有重要的促进作用。本文重点综述习得性无助模型的研究范式、主要优势,以及介导习得性无助行为的重要脑区的最新研究进展,如前额叶皮质(PFC)、腹侧被盖区(VTA)、中缝背核(DRN)等,以期为深入探索应激障碍相关疾病的发病机制及临床诊断治疗提供有益参考。

关键词：习得性无助模型应激障碍前额叶皮质腹侧被盖区中缝背核

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A cationic Zr-based metal organic framework with enhanced acidic resistance for selective and efficient removal of CrO4^2-

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NEW JOURNAL OF CHEMISTRY 2020年第29期44卷 12646-12653页

作者： Jiang, Chao Sun, Ruopei du, Ziyao Singh, Vikramjeet Chen, suwen Lanzhou Univ Sch Nucl Sci & Technol Radiochem Lab Lanzhou 730000 Peoples R China UCL UCL Mech Engn Nanoengn Syst Lab London England Lanzhou Univ Minist Educ Key Lab Special Funct Mat & Struct Design Lanzhou 730000 Peoples R China

Water pollution caused by CrO(4)(2-)has become a global concern due to its high aqueous solubility and good mobility in the underground environment. Recently, water stable zirconium based metal-organic frameworks (Zr-MOFs) have been tested as adsorbents to remove pollutants from contaminated water. However, the low adsorption capacity of Zr-MOFs towards ionic pollutants is unsatisfactory due to their neutral nature. Herein, a cationic Zr-MOF (Zr-C-MOF) was obtained by directly introducing a pyridinium salt as a ligand with an impressive ion exchange capability. Zr-C-MOF demonstrated enhanced acidic resistance and selectively high adsorption of CrO42-. The characteristics of the obtained Zr-C-MOF were confirmedviavarious techniques including PXRD, FT-IR spectroscopy,H-1-NMR spectroscopy, TGA, SEM, EDX and XPS. Batch adsorption studies have been conducted to gain a deep understanding of the kinetics mechanism, pH effects, adsorption isotherm and the effects of other competing ions. The kinetics and adsorption isotherm of CrO(4)(2-)adsorption onto Zr-C-MOF were found to well fit the pseudo-second-order rate equation and the Langmuir model, respectively. The comparison of FT-IR, PXRD, SEM, EDX and XPS results of the samples before and after CrO(4)(2-)adsorption revealed the adsorption mechanism of the anion exchange process.

关键词： Adsorption

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Sorption of U(VI) on Schiff-base functionalized metal-organic frameworks UiO-66-NH2

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JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY 2021年第2期327卷 811-819页

作者： du, Ziyao Li, Bolin Jiang, Chao Sun, Ruopei Chen, suwen Lanzhou Univ Sch Nucl Sci & Technol Lanzhou 730000 Gansu Peoples R China

A metal-organic framework, UiO-66-NH2, was designed, synthesized and characterized in this study. By conducting solvothermal method, Salicylaldehyde (Sal) and 2,4-dihydroxybenzaldehyde (MHBA) were grafted onto UiO-66-NH2 via post-treatment to obtain the functionalized material UiO-66-Sal and UiO-66-MHBA. The three materials above were characterized, and the effects of solid-liquid ratio, pH, ionic strength, and oscillation time on U(VI) adsorption were studied. The relevant experimental results fitted well with pseudo-second-order kinetic equation and thermodynamic adsorption model.

关键词： U(VI) Metal– organic frameworks (MOFs) Sorption UiO-66-NH2 Schiff-base

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Design and Control of a Two-Motor-Actuated Tuna-Inspired Robot System

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IEEE TRANSACTIONS ON SYSTEMS MAN CYBERNETICS-SYSTEMS 2021年第8期51卷 4670-4680页

作者： du, Sheng Wu, Zhengxing Wang, Jian Qi, suwen Yu, Junzhi Chinese Acad Sci Inst Automat State Key Lab Management & Control Complex Syst Beijing 100190 Peoples R China Univ Chinese Acad Sci Sch Artificial Intelligence Beijing 100049 Peoples R China Shenzhen Univ Sch Med Dept Biomed Engn Shenzhen 518060 Peoples R China Chinese Acad Sci Inst Automat State Key Lab Management & Control Complex Syst Beijing 100190 Peoples R China Peking Univ Coll Engn State Key Lab Turbulence & Complex Syst Dept Mech & Engn SciBIC ESAT Beijing 100871 Peoples R China

This article presents the mechanical design and locomotion control of a novel tuna-inspired robot system for both fast swimming and high maneuverability. Mechanically, the developed robotic fish named CasiTuna comprises three important parts, i.e., an innovative two-motor-actuated propulsive mechanism, a buoyancy adjustment structure, and a pair of pectoral fins. Unlike most robotic fishes' multiple concatenated links-based propulsive mechanism, CasiTuna's two-motor-actuated one places both motors in the anterior body and utilizes a transmission system to achieve tuna-like lateral undulations. Meanwhile, the buoyancy adjustment mechanism in conjunction with pectoral fins endows the robot with the capability of three-dimensional maneuverability. Kinematic and dynamic analyses are further conducted to reveal the interactive hydrodynamic forces. Regarding the locomotion control method, a bio-inspired central pattern generator-based controller is adopted to achieve multimodal swimming. In particular, two kinds of turning maneuvers are implemented and discussed. Aquatic experiments, including straight swimming, circular turning, and nearly static pitching validate the effectiveness of proposed mechatronic design and locomotion control methods. Remarkably, CasiTuna achieved a peak forward speed of 0.8 m/s (corresponding to 1.52 body lengths per second) and a minimum turning radius of less than 0.3 body lengths.

关键词： Bio-inspired robot fast swimming maneuverability robotic tuna underwater robot

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A Balanced Design Concept of Anti-explosion and Design Scheme of Pressure Relief Device of UHV Transformer 3

A Balanced Design Concept of Anti-explosion and Design Schem...

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3rd International Conference on Smart Power and Internet Energy Systems (SPIES) - Towards A Sustainable and Affordable Energy Transition

作者： Chen, suwen Guo, Zechen du, Gan Xie, Qiang Tongji Univ State Key Lab Disaster Reduct Civil Engn Shanghai Peoples R China Tongji Univ Coll Civil Engn Shanghai Peoples R China

ISBN: (纸本)9780738146331

UHV transformer is an important device in power system. Transformer explosions happen frequently, and most of them will cause fire, which will cause serious economic loss and casualty risk. There is no relative authoritative engineering solution to transformer explosion accident. Aiming at this problem, this paper puts forward the idea of anti-explosion and pressure relief balanced design of UHV transformer, and gives the design scheme of pressure relief device which supports the balanced design. In the numerical simulation, the common explosion condition is considered and the structural responses of transformer box is obtained. According to the responses, the layout suggestion of the pressure relief device is given, and the design scheme of the device is improved.

关键词： transformer anti-explosion balanced design pressure reliefdevice structural responses

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A Highly Efficient BODIPY Based Turn-off Fluorescent Probe for Detecting Cu²⁺

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JOURNAL OF FLUORESCENCE 2020年第4期30卷 883-890页

作者： Sun, Ruopei Wang, Lusheng Jiang, Chao du, Ziyao Chen, suwen Wu, Wangsuo Lanzhou Univ Sch Nucl Sci & Technol 222 Tianshui South Rd Lanzhou Gansu Peoples R China

Based on boron-dipyrromethene (BODIPY), taking 2-hydroxy-N-(2-hydroxyphenyl)benzamide as recognition site, a new fluorescent probe HHPBA-BODIPY aimed at sensitively detecting Cu ions was designed, synthesized and *** emission spectra of HHPBA-BODIPY exhibited an intensive green fluorescence around 510 nm, with a maximum absorption near 500 nm. When Cu2+ ions are present, the fluorescence at 510 nm can be quenched with a good linearity between the copper ion concentrationand the fluorescence intensity and the detection limit is 0.35 mu M. HHPBA-BODIPY is also selective toward Cu2+, while other metal ions show no interfere except Fe3+ and Cr3+ ions. In addition, HHPBA-BODIPY also proved efficient to detect Cu2+ in water samples which offers the possibility to detect trace amount of Cu2+ for environmental monitoring. Copper ions;BODIPY;fluorescent probe.

关键词： BODIPY Fluorescent probe Copper ion detection Cu2+

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Preparation and performance of silver-incorporated antibacterial amidoximated electrospun nanofiber for uranium extraction from seawater

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JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY 2022年第1期331卷 427-438页

作者： Sun, Ruopei Qu, Chang Jiang, Chao du, Ziyao Mo, Huilian Wang, Jing Chen, suwen Lanzhou Univ Sch Nucl Sci & Technol Lanzhou 730000 Gansu Peoples R China Lanzhou Univ Sch Stomatol Lanzhou 730000 Gansu Peoples R China

To avoid the interference of biofouling on the adsorbents towards uranium extraction from seawater, a silver-incorporated antibacterial amidoximated nanofiber adsorbent (PAO@AgNP) was designed and prepared via electrospinning in this study. The uranium adsorption experiments conducted in uranium-spiked seawater showed the material possessed good uranium adsorption capacity (11.89 mg/g), and the antibacterial experiments demonstrated that PAO@AgNP could effectively remove Escherichia coli and Staphylococcus aureus, the released silver could interrupt cellular respiration, lead to lipid peroxidation and eventually apoptosis.

关键词： Uranium extraction from seawater Biofouling Electrospinning Amidoximated adsorbents

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Design of TETRA-based dedicated radio communication system for urban rail transit

Design of TETRA-based dedicated radio communication system f...

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2012 3rd International Conference on System Science, Engineering Design and Manufacturing Informatization, ICSEM 2012

作者： Qi, Wei Yu, Xin du, Chengxin Li, suwen Institute of Computing Technology China Academy of Railway Sciences No.2 Daliushu Road Haidian District Beijing 100081 China

ISBN: (纸本)9781467309141

Terrestrial Trunked Radio (TETRA) based communication system can provide command dispatching, data transmission and telephone services on one platform. In Rail transit network, communication and short data transmission between fixed and mobile staff can be implemented through digital trunked radio communication system. In this paper, with the requirements of train operation specification, we give the design proposal of dedicated dispatching, network management software and mobile terminal equipments in secondary development mode, achieving a fast, efficient and flexible communication network. © 2012 IEEE.

关键词： Data transfer

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A Preliminary Study on Anti-explosion Performance of UHV Transformer 3

A Preliminary Study on Anti-explosion Performance of UHV Tra...

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3rd International Conference on Electrical Materials and Power Equipment, ICEMPE 2021

作者： Chen, suwen du, Gan Xie, Qiang Qu, Guanglei State Key Laboratory for Disaster Reduction in Civil Engineering Tongji University Shanghai China College of Civil Engineering Tongji University Shanghai China Transformer Group CO. LTD Team Shenyang Shenyang China

ISBN: (纸本)9781665418409

Power transformer is the key equipment in the power system. In recent years, transformer explosion occurred frequently, most of which caused fire and resulted in heavy losses. Research in this field is still in the initial stage. To analyze the anti-explosion performance of transformers, an equivalent load model for transformer arc fault is firstly proposed in this paper, and the relevant numerical simulation is carried out. Fluid-structure interaction is considered in the numerical simulation, and finally the load distribution field and the structural response characteristics of the transformer are obtained for two typical arc fault locations. © 2021 IEEE.

关键词： Fluid structure interaction

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Single-Atom Ru-Triggered Lattice Oxygen Redox Mechanism for Enhanced Acidic Water Oxidation

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Journal of the American Chemical Society 2025年 2025 May 15页

作者： Qi, Menghui du, Xiangbowen Shi, Xiaoyun Wang, suwen Lu, Bing Chen, Jiadong Mao, Shanjun Zhang, Hao Wang, Yong Advanced Materials and Catalysis Group Center of Chemistry for Frontier Technologies State Key Laboratory of Clean Energy Utilization Institute of Catalysis Department of Chemistry Zhejiang University Hangzhou 310058 China Department of Chemical Engineering Massachusetts Institute of Technology Cambridge 02139 MA United States College of Chemistry and Molecular Engineering Zhengzhou University Zhengzhou 450001 China

Activating the oxygen anionic redox presents a promising avenue for developing highly active oxygen evolution reaction (OER) electrocatalysts for proton-exchange membrane water electrolyzers (PEMWE). Here, we engineered a lattice-confined Ru single atom dispersed on a lamellar manganese oxide (MnO2) cation site. The strong Ru-O bond induced an upward shift in the O 2p band, enhancing metal-oxygen covalency and reshaping the OER mechanism toward lattice oxygen oxidation pathway with increased activity. In situ spectral characterization combined with density functional theory (DFT) calculations revealed that electron transfer from Mn to Ru alleviates the Jahn-Teller effect within the MnO6 octahedral structure, stabilizing the lattice. The layered Ru/MnO2 architecture also promotes the rapid replenishment of oxygen vacancies, preventing structural collapse. As a result, the optimized Ru/MnO2 electrocatalyst achieves an OER overpotential of only 179 mV at 10 mA cm-2 in 0.5 M H2SO4, along with exceptional durability over 1000 h at 100 mA cm-2. Moreover, the Ru/MnO2-based PEM device requires only 1.71 V to reach 1 A cm-2 and shows a durability of 500 h at 500 mA cm-2 © 2025 American Chemical Society.

关键词： Redox reactions

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