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Journal of Environmental Sciences 2024年第4期138卷 350-372页

作者： Zhuo Wei YiWei Yang Liu shuai niu Yaxi Xu Jong-Hwan Park Jim J.Wang Faculty of Environmental Science&Engineering Kunming University of Science&TechnologyKunming 650500China School of Plant Environment&Soil SciencesLouisiana State University AgCenter.Baton RougeLA 70803USA Department of Life Resources Industry Dong-A University37Nakdong-daero 550 beon-gilSaha-guBusan 49315South Korea

Petroleum contamination is considered as a major risk to the health of humans and environment.Biochars as low-cost and eco-friendly carbon materials,have been widely used for the removal of petroleum hydrocarbon in the environment.The purpose of this paper is to review the performance,mechanisms,and potential environmental toxicity of biochar,modified biochar and its integration use with other materials in petroleum contaminated soil and water.Specifically,the use of biochar in oil-contaminated water and soil as well as the factors that could influence the removal ability of biochar were systematically evaluated.In addition,the modification and integrated use of biochar for improving the removal efficiency were summarized from the aspects of sorption,biodegradation,chemical degradation,and reusability.Moreover,the functional impacts and associated ecotoxicity of pristine and modified biochars in various environments were demonstrated.Finally,some shortcoming of current approaches,and future research needs were provided for the future direction and challenges of modified biochar research.Overall,this paper gain insight into biochar application in petroleum remediation from the perspectives of performance enhancement and environmental sustainability.

关键词： Petroleum contamination Adsorbent Bioremediation Biochar modification Ecotoxicity

Mitigating the Reconstruction of Metal Sulfides for Ultrastable Oxygen Evolution at High Current Density

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CCS Chemistry 2024年第1期6卷 137-148页

作者： shuai niu Tang Tang Yuanju Qu Yuyun Chen Hao Luo Hui Pan Wen-Jie Jiang Jianan Zhang Jin-Song Hu Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Molecular Nanostructure and NanotechnologyInstitute of ChemistryChinese Academy of SciencesBeijing 100190 Joint Key Laboratory of the Ministry of Education Institute of Applied Physics and Materials EngineeringUniversity of MacaoMacao SAR 999078 Department of Chemical Engineering University of MelbourneParkvilleVictoria 3010 College of Materials Science and Engineering Zhengzhou UniversityZhengzhou 450001 School of Chemical Sciences University of Chinese Academy of SciencesBeijing 100049 Dalian National Laboratory for Clean Energy Dalian 116023

Metal sulfides are emerging highly active electrocatalysts for the oxygen evolution reaction(OER),but still suffer from the instability caused by their inevitable reconstruction,especially at industrial-level current density.Here,it is discovered that Fe-incorporated Ni3S2 nanowires can deliver extraordinary durability with an ultralow potential degradation rate of 0.006 mV/h in alkaline electrolytes made with fresh water and seawater at a benchmark of 500 mA cm^(-2) while meeting the industrial activity requirement for overpotential less than 300 mV(290 mV).Systematic experiments and theoretical simulations suggest that after forming the S-doped NiFeOOH shell to boost intrinsic activity,Fe incorporation effectivelymitigates the reconstruction of the Ni_(3)S_(2) nanowire core by restraining Ni oxidation and S dissolution,justifying the performance.This work highlights the significance of circumventing reconstruction and provides a strategy to explore practical chalcogenides-based OER electrocatalysts.

关键词： oxygen evolution reaction sulfur-doped NiFeOOH NiFe sulfides nanowire ultrastable high current density

Recent progress and challenges in structural construction strategy of metal-based catalysts for nitrate electroreduction to ammonia

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Journal of Energy Chemistry 2023年第11期86卷 69-83,I0003页

作者： shuai niu College of Ecology Taiyuan University of TechnologyTaiyuan 030024ShanxiChina

Ammonia plays an essential role in human production and life as a raw material for chemical fertilizers.The nitrate electroreduction to ammonia reaction(NO_(3)RR)has garnered attention due to its advantages over the Haber-Bosch process and electrochemical nitrogen reduction reaction.Therefore,it represents a promising approach to safeguard the ecological environment by enabling the cycling of nitrogen species.This review begins by discussing the theoretical insights of the NO_(3)RR.It then summarizes recent advances in catalyst design and construction strategies,including alloying,structure engineering,surface engineering,and heterostructure engineering.Finally,the challenges and prospects in this field are presented.This review aims to guide for enhancing the efficiency of electrocatalysts in the NO_(3)RR,and offers insights for converting NO_(3)-to NH_(3).

关键词： Nitrate electroreduction to ammonia reaction(NO^(3)RR) Structural construction strategy Nitrogen cycle Metal-based catalysts Catalytic mechanism

Investigation of high-quality-factor aluminum nitride MEMS cantilever resonators

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Nanotechnology and Precision Engineering 2024年第1期7卷 32-43页

作者： shuai Shi Qingrui Yang Yi Yuan Haolin Li Pengfei niu Wenlan Guo Chen Sun Wei Pang State Key Laboratory of Precision Measuring Technology and Instruments Tianjin UniversityTianjin 300072China

This paper presents the design,fabrication,and characterization of cantilever-type resonators with a novel stacked structure.Aluminum nitride is adopted as the material for both the structural layer and the piezoelectric layer;this simpliﬁes the fabrication process and improves the quality factor of the resonator.Both in-plane and out-of-planeﬂexural modes were investigated.The effect of the structural dimensions and electrode patterns on the resonator’s performance were also studied.Finite-element simulations and experiments examining anchor loss and thermoelastic damping,which are the main loss mechanisms affecting the quality factor of these resonators,were carried out.The optimal structural dimensions and electrode patterns of the cantilever-type resonators are presented.A quality factor of 7922 with a motional impedance of 88.52 kΩand a quality factor of 8851 with a motional impedance of 67.03 kΩwere achieved for the in-plane and out-of-planeﬂexural-mode resonators,respectively.The proposed resonator design will contribute to the development of high-performance devices such as accelerometers,gyroscopes,and pressure sensors.

关键词： MEMS Cantilever-type micro-resonator AlN Finite-element simulation

Diabetes mellitus and adverse outcomes after carotid endarterectomy:A systematic review and meta-analysis

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Chinese Medical Journal 2023年第12期136卷 1401-1409页

作者： Fengshi Li Rui Zhang Xiao Di shuai niu Zhihua Rong Changwei Liu Leng Ni Department of Vascular Surgery Peking Union Medical College HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100730China Department of Breast Oncoplastic Surgery Hunan Cancer Hospital&The Affiliated Cancer Hospital of Xiangya School of MedicineCentral South UniversityChangshaHunan 410031China

Background:There is still uncertainty regarding whether diabetes mellitus(DM)can adversely affect patients undergoing carotid endarterectomy(CEA)for carotid stenosis.The aim of the study was to assess the adverse impact of DM on patients with carotid stenosis treated by CEA.Methods:Eligible studies published between 1 January 2000 and 30 March 2023 were selected from the PubMed,EMBASE,Web of Science,CENTRAL,and ClinicalTrials databases.The short-term and long-term outcomes of major adverse events(MAEs),death,stroke,the composite outcomes of death/stroke,and myocardial infarction(MI)were collected to calculate the pooled effect sizes(ESs),95%confidence intervals(CIs),and prevalence of adverse outcomes.Subgroup analysis by asymptomatic/symptomatic carotid stenosis and insulin/noninsulin-dependent DM was performed.Results:A total of 19 studies(n=122,003)were included.Regarding the short-term outcomes,DM was associated with increased risks of MAEs(ES=1.52,95%CI:[1.15-2.01],prevalence=5.1%),death/stroke(ES=1.61,95%CI:[1.13-2.28],prevalence=2.3%),stroke(ES=1.55,95%CI:[1.16-1.55],prevalence=3.5%),death(ES=1.70,95%CI:[1.25-2.31],prevalence=1.2%),and MI(ES=1.52,95%CI:[1.15-2.01],prevalence=1.4%).DM was associated with increased risks of long-term MAEs(ES=1.24,95%CI:[1.04-1.49],prevalence=12.2%).In the subgroup analysis,DM was associated with an increased risk of short-term MAEs,death/stroke,stroke,and MI in asymptomatic patients undergoing CEA and with only short-term MAEs in the symptomatic patients.Both insulin-and noninsulin-dependent DM patients had an increased risk of short-term and long-term MAEs,and insulin-dependent DM was also associated with the short-term risk of death/stroke,death,and MI.Conclusions:In patients with carotid stenosis treated by CEA,DM is associated with short-term and long-term MAEs.DM may have a greater impact on adverse outcomes in asymptomatic patients after CEA.Insulin-dependent DM may have a more significant impact on post-CEA adverse outcomes than noninsulin-dependent DM.Whether DM manag

关键词： Carotid artery stenosis Carotid endarterectomy Diabetes mellitus Meta-analysis

Constructing hierarchical nanosheet-on-microwire FeCo LDH@Co3O4 arrays for high-rate water oxidation

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Nano Research 2022年第12期15卷 10021-10028页

作者： Tang Tang Zhe Jiang Jun Deng shuai niu Ze-Cheng Yao Wen-Jie Jiang Lin-Juan Zhang Jin-Song Hu Beijing National Laboratory for Molecular Sciences(BNLMS) CAS Key Laboratory of Molecular Nanostructure and NanotechnologyInstitute of ChemistryChinese Academy of SciencesBeijing100190China University of the Chinese Academy of Sciences Beijing100049China Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing100190China Shanghai Synchrotron Radiation Facility Shanghai Institute of Applied PhysicsChinese Academy of SciencesShanghai201800China Dalian National Laboratory for Clean Energy Dalian116023China

Alkaline electrochemical water oxidation powered by renewable energies is a promising and environmentally friendly way to produce hydrogen.The industrial water electrolyzers are commonly operated at a high current density,calling for abundant and durable active sites to participate in.The rational design of hierarchically structured electrocatalysts is thus essential to industrial water electrolyzers.Herein,we develop a Fe3+induced nanosizing strategy for fabricating such a hierarchical FeCo LDH@Co3O4(LDH:layered double hydroxide)nanostructure array for high-rate water oxidation.Density functional theory(DFT)simulations indicate that the introduction of Fe3+with a small ion radius and high electrical repulsion in the LDH layer distorted the LDH layer,resulting in a reduced nanosheet size and enabling the formation of a hierarchical structure.Such structure cannot be achieved without the participation of Fe3+cations.Benefiting from the significantly enhanced electrochemical surface areas and charge/mass transport due to the hierarchical structure together with the boosted intrinsic activity by electronic modulation of Fe3+,such FeCo LDH@Co3O4 electrode can deliver an industrial-level current density of 1,000 mA·cm-2 at a small overpotential of 392 mV for water oxidation.When assembled in a water electrolyzer,it delivers a current density of 100 mA·cm-2 at a low operation voltage of 1.61 V.Powered by solar light,the electrolyzer demonstrates high solar-to-hydrogen efficiency of 18.15%with stable and reproducible photoresponse.These results provide new insights for constructing hierarchical nanostructures for advanced water oxidation and other diverse applications.

关键词： electrocatalysts oxygen evolution reaction water splitting hierarchical structures layered double hydroxides

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眼动交互关键技术研究现状与展望

计算机集成制造系统 2024年第5期30卷 1595-1609页

作者：杨晓楠王帅牛红伟薛庆郝佳北京理工大学机械与车辆学院北京100081 北京理工大学长三角研究院浙江嘉兴314019 北京理工大学工业知识与数据融合应用工业和信息化部重点实验室北京100081

随着计算机性能的不断提升,传统键鼠类窄带宽输入形式严重限制了计算机系统的工作效率。为了顺应高效、自然的人机交互发展趋势,眼动交互技术成为近年来的研究热点并取得了一定进展。在对眼动交互技术相关文献进行梳理的基础上,总结了... 详细信息

随着计算机性能的不断提升,传统键鼠类窄带宽输入形式严重限制了计算机系统的工作效率。为了顺应高效、自然的人机交互发展趋势,眼动交互技术成为近年来的研究热点并取得了一定进展。在对眼动交互技术相关文献进行梳理的基础上,总结了眼动交互数据的一般处理与分析方法;围绕眼动交互过程存在的低空间精确度、米达斯接触以及视疲劳等关键问题展开描述,并对其解决方案进行了重点分析;最后,对眼动交互技术的前沿方向及发展趋势进行了展望,以期为后续相关研究提供有价值的参考。

关键词：眼动交互空间精确度米达斯接触视疲劳意图识别

Atom-referenced and stabilized soliton microcomb

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Science China(Physics,Mechanics & Astronomy) 2024年第2期67卷 2-8页

作者： Rui niu shuai Wan Tian-Peng Hua Wei-Qiang Wang Zheng-Yu Wang Jin Li Zhu-Bo Wang Ming Li Zhen Shen Yu Robert Sun Shui-Ming Hu Brent ELittle Sai Tak Chu Wei Zhao Guang-Can Guo Chang-Ling Zou Yun-Feng Xiao Wen-Fu Zhang Chun-Hua Dong State Key Laboratory of Transient Optics and Photonics Xi’an Institute of Optics and Precision MechanicsChinese Academy of SciencesXi’an 710119China CAS Key Laboratory of Quantum Information University of Science and Technology of ChinaHefei 230026China CAS Center for Excellence in Quantum Information and Quantum Physics University of Science and Technology of ChinaHefei 230026China University of Chinese Academy of Sciences Beijing 100049China Department of Chemical Physics University of Science and Technology of ChinaHefei 230026China Department of Physics and Materials Science City University of Hong KongHong Kong 999077China State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics School of PhysicsPeking UniversityBeijing 100871China

For the applications of the frequency comb in microresonators,it is essential to obtain a fully frequency-stabilized microcomb laser source.In this study,we present a system for generating a fully atom-referenced stabilized soliton microcomb.The pump light around 1560.48 nm is locked to an ultra-low-expansion(ULE)cavity.This pump light is then frequency-doubled and referenced to the atomic transition of87Rb.The repetition rate of the soliton microcomb is injection-locked to an atomic-clockstabilized radio frequency(RF)source,leading to mHz stabilization at 1 s.As a result,all comb lines have been frequencystabilized based on the atomic reference and the ULE cavity,achieving a very high precision of approximately 18 Hz at 1 s,corresponding to the frequency stability of 9.5×10^(-14).Our approach provides a fully stabilized microcomb experiment scheme with no requirement of f-2f technique,which could be easily implemented and generalized to various photonic platforms,thus paving the way towards the ultraprecise optical sources for high precision spectroscopy.

关键词： microcavity frequency comb dissipative Kerr solitons fully stabilized microcomb

山西晋中盆地紫花苜蓿生产对水分和气温的响应

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草地学报 2024年第1期32卷 207-218页

作者：朱敏牛帅帅侯青青杨轩徐洪雨山西农业大学草业学院山西太谷030801

为验证农业生产系统模型(Agricultural Production Systems sIMulator, APSIM)—苜蓿模型对山西晋中盆地地区的适应性,本研究基于晋中市太谷区6个紫花苜蓿(Medicago sativa)品种的田间观测数据和同期气象资料对模型进行校准,并设置不同... 详细信息

为验证农业生产系统模型(Agricultural Production Systems sIMulator, APSIM)—苜蓿模型对山西晋中盆地地区的适应性,本研究基于晋中市太谷区6个紫花苜蓿(Medicago sativa)品种的田间观测数据和同期气象资料对模型进行校准,并设置不同水分处理与降水/气温梯度进行情景模拟,分析各品种的生产力及适应性。结果表明:APSIM模拟各茬紫花苜蓿干草产量的决定系数(Correlation coefficient,R2)为0.82~0.98,均方根误差(Root mean square error,RMSE)为440~633 kg·hm^(-2),均一化均方根误差(Normalized root mean square error,NRMSE)为10.57%~14.98%,D指数(Index of agreement)为0.90~0.96,拟合度较高;情景模拟中,不同水分处理和降水梯度对紫花苜蓿产草量的效应极显著(P<0.01),但气温梯度间紫花苜蓿产草量的差异不显著;各紫花苜蓿品种的产量损失率(Yield lose rate, YLR)在不同温度、降水梯度和水分处理间差异显著(P<0.01),且雨养处理下YLR最高。虽未能充分发挥潜在产量,但总体而言“WL”系列品种在山西晋中盆地地区具有更好的生产适应性;APSIM模型对研究区紫花苜蓿生产有较好的模拟能力,对该地区的牧草种植管理具有一定指导意义。

关键词： APSIM模型紫花苜蓿晋中盆地生产力

35例线粒体脑肌病伴高乳酸血症和卒中样发作患者的临床影像病理特征研究

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中华内科杂志 2024年第7期63卷 674-679页

作者：徐帅璩龙杰陈雪朱晓蕾牛丰南南京大学医学院附属鼓楼医院神经内科南京南京医科大学鼓楼临床医学院南京南京大学医学院附属鼓楼医院病理科南京

目的总结线粒体脑肌病伴高乳酸血症和卒中样发作(MELAS)患者的临床影像病理特征, 旨在提高该罕见病的诊疗水平。方法病例系列研究。收集2012年至2021年在南京大学医学院附属鼓楼医院确诊的35例MELAS病例, 总结其临床表现、影像学、肌肉... 详细信息

目的总结线粒体脑肌病伴高乳酸血症和卒中样发作(MELAS)患者的临床影像病理特征, 旨在提高该罕见病的诊疗水平。方法病例系列研究。收集2012年至2021年在南京大学医学院附属鼓楼医院确诊的35例MELAS病例, 总结其临床表现、影像学、肌肉活检、基因检测以及治疗转归结果。数据采用平均值、标准差、频率百分比的形式进行描述性统计分析。结果 35例MELAS患者发病年龄为(30.2±2.3)岁, 20%有家族史。首发症状以肢体无力、肢体抽搐常见;神经肌肉系统症状以近端肌无力和运动不耐受为主;神经肌肉系统之外的其他系统症状以内分泌系统(糖尿病)受累最多。5例患者行头颅CT检查, 示低密度灶4例、钙化灶2例。26例患者行头颅MRI示病灶区累及顶叶、基底节区、颞叶、枕叶、额叶等部位;较少累及幕下;其中12例出现不同程度的脑萎缩。10例患者行头颅1H-MRS, 9例出现NAA峰减低, 8例出现异常乳酸峰, 6例同时出现NAA减低合并乳酸峰。31例患者行基因检测, 25例检测到mt.3243A>G突变, 其余6例为其他罕见突变。21例患者行肌肉活检, 15例病理肌活检观察到代表线粒体异常增殖的破碎红纤维和代表氧化磷酸化障碍的COX酶缺陷型肌纤维。结论 MELAS综合征患者的临床表现具有多样性及复杂性, 早期症状容易误诊和漏诊。详细的临床病史、影像波谱和肌活检、基因检测是MELAS确诊的必要条件。

关键词： MELAS综合征神经肌肉疾病磁共振波谱学 DNA, 线粒体突变