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Green Energy & Environment 2023年第2期8卷 470-477页

作者： Xiaohao Ji xiaoyu chen Lijuan Zhang cheng Meng Yilei He Xing Zhang Zumin Wang Ranbo Yu Department of Physical Chemistry School of Metallurgical and Ecological EngineeringUniversity of Science and Technology BeijingBeijing100083China State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of Sciences1 North 2nd StreetZhongguancunHaidian DistrictBeijing100190China

Effective and robust electrocatalysts are mainly based on innovative materials and unique ***,we designed a flakelike cobalt phosphide-based catalyst supporting on NiCo_(2)O_(4)nanorods array,which in-situ grew on the nickel foam(NF)current collector,referring as NCo_(2)P/NiCo_(2)O_(4)/NF *** optimizing the microstructure and electronic structure through 3D hierarchy fabrication and nitrogen doping,the catalyst features with abundant electrochemical surface area,favorable surface wettability,excellent electron transport,as well as tailored d band ***,the as-prepared N-Co_(2)P/NiCo_(2)O_(4)/NF electrode exhibits an impressive HER activity with a low overpotentials of58 mV at 10 mA cm^(-2),a Tafel slop of 75 mV dec^(-1),as well as superior durability in alkaline *** work may provide a new pathway to effectively improve the hydrogen evolution performance of transition metal phosphides and to develop promising electrodes for practical electrocatalysis.

关键词： Hydrogen evolution reaction(HER) Cobalt phosphide Nonprecious electrocatalyst Hierarchal structure Nitrogen doping

Four- to Six-Year Periodic Variation of Arctic Sea-Ice Extent and Its Three Main Driving Factors

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Advances in Atmospheric Sciences 2024年第10期41卷 1999-2010页

作者： Ping chen Jinping ZHAO xiaoyu WANG Institute of Oceanographic Instrumentation Qilu University of Technology (Shandong Academy of Sciences) College of Oceanic and Atmospheric Sciences Ocean University of China Frontiers Science Center for Deep Ocean Multispheres and Earth System Key Laboratory of Physical OceanographyOcean University of China

Besides the rapid retreating trend of Arctic sea-ice extent(SIE), this study found the most outstanding low-frequency variation of SIE to be a 4–6-year periodic variation. Using a clustering analysis algorithm, the SIE in most ice-covered regions was clustered into two special regions: Region-1 around the Barents Sea and Region-2 around the Canadian Basin,which were located on either side of the Arctic Transpolar Drift. Clear 4–6-year periodic variation in these two regions was identified using a novel method called “running linear fitting algorithm”. The rate of temporal variation of the Arctic SIE was related to three driving factors: the regional air temperature, the sea-ice areal flux across the Arctic Transpolar Drift,and the divergence of sea-ice drift. The 4–6-year periodic variation was found to have always been present since 1979, but the SIE responded to different factors under heavy and light ice conditions divided by the year 2005. The joint contribution of the three factors to SIE variation exceeded 83% and 59% in the two regions, respectively, remarkably reflecting their dynamic mechanism. It is proven that the process of El Ni?o–Southern Oscillation(ENSO) is closely associated with the three factors, being the fundamental source of the 4–6-year periodic variations of Arctic SIE.

关键词： air temperature Arctic Transpolar Drift ENSO ice-drift divergence periodic variation sea-ice areal flux sea-ice extent

Recent Progress on 2D Transition Metal Compounds-based Electrocatalysts for Efficient Nitrogen Reduction

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Chemical Research in Chinese Universities 2020年第4期36卷 648-661页

作者： DONG Wcnfei chen xiaoyu PENG Juan LIU Wanyi JIN Xiaoyong NI Gang LIU Zheng State Key Laboratoty of High-efficiency Utilization of Coal and Green Chemical Engineering National Demonstration Center for Experimental Chemistry EducationCollege of Chemistry and Chemical EngineeringNingxia UniversityYinchuan 750021P.R.China School of Materials Science and Engineeting Nanyang Technological UniversitySingapore 639798Singapore CINTRA CNRS NTU THALES Research Techno PlazaSingapore 639798Singapore Environmental Chemistry and Materials Centre Nanyang Environment and Water Research InstituteSingapore 639798Singapore

Ammonia is a commodity chemical with high added *** reduction of nitrogen has great promise for the sustainable synthesis of ammonia in recent *** of its rich resources and unique electronic structure and characteristics,2D transition metal compounds have been used as electrocatalysts for electro-chemical reduction of nitrogen for clean and sustainable production of ammonia,This review outlines the latest development in the use of 2D transition metal compounds as high-efficiency electrocatalysts for nitrogen ***(NRR).First,we introduce the N,reduction mechanism,and briefly summarize the performance indicators ofthe ***,we focused on the functionalization of unique 2D materials to design high-performance 2D electrocatalysts in respect of simulation calculation and experimental ***,the current challenges and future opportunities for NRR electrocatalvsts are introduced.

关键词： Electrochemical NH3 svnthesis Transition metal Nitrogen fixation Electrocatalysis

2型糖尿病阴虚证与尿AQP2、AQP7表达的相关性研究

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辽宁中医杂志 2024年第3期51卷 97-100页

作者：胡子贤王世东陈宇蒋里苏冠旬陈小愚宋德超李佳玥战丽彬北京中医药大学北京100029 北京中医药大学东直门医院北京100700 辽宁中医药大学中医药创新工程技术中心辽宁沈阳110847

目的观察2型糖尿病阴虚证临床特征,明确患者尿中水通道蛋白-2(aquaporin-2,AQP2)、水通道蛋白-7(aquaporin-7,AQP7)表达特点及相关因素对其的影响,以利于进一步探索2型糖尿病阴虚证病证结合证候特点。方法制定2型糖尿病临床观察表、2型... 详细信息

目的观察2型糖尿病阴虚证临床特征,明确患者尿中水通道蛋白-2(aquaporin-2,AQP2)、水通道蛋白-7(aquaporin-7,AQP7)表达特点及相关因素对其的影响,以利于进一步探索2型糖尿病阴虚证病证结合证候特点。方法制定2型糖尿病临床观察表、2型糖尿病阴虚证辨证标准量表以及中医证候诊断标准量表,将2021年3月—2021年12月北京中医药大学东直门医院肾病内分泌科住院部34例2型糖尿病患者分为阴虚证组(观察组)和阳虚证组(对照组)。采集两组患者血生化标本及清晨第一次全部尿液并采用酶联免疫吸附法(enzyme linked immunosorbent assay,ELISA)检测尿AQP2、AQP7的表达水平。对病例的性别、年龄、病程等多因素进行校正,分析两组尿AQP2、AQP7的差异。结果经校正后,2型糖尿病阴虚证患者尿AQP2水平明显低于阳虚证患者,MD(95%CI)为-64.23(-93.59,-34.87)(P0.05)。结论该研究所纳入2型糖尿病阴虚证患者尿AQP2指标表达低于阳虚证患者,提示AQP2可能是2型糖尿病阴虚证特异性生物标志物。

关键词： 2型糖尿病阴虚证水通道蛋白-2 水通道蛋白-7

Three-Dimensional Hierarchical Ternary Nanostructures Bismuth/Polypyrrole/CNTs for High Performance Potassium-lon Battery Anodes

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Chinese Journal of Chemistry 2022年第13期40卷 1585-1591页

作者： Wenming Zhang xiaoyu chen Haoshan Xu Yiqun Liu Xiaohui Zhao Zisheng Zhang Ling Li National-Local Joint Engineering Laboratory of New Energy Photoelectric Devices College of Physics Science and TechnologyHebei UniversityBaodingHebei 071002China

In recent years,the anode materials of bismuth(Bi)-based potassium ion batteries with high theoretical capacity and suitable potassium ion insertion potential have attracted extensive ***,due to the volume expansion of Bi,the performance of Bi-based anode materials is not ideal during potassium ion(de)*** order to solve these problems,we report a three-dimensional(3D)ternary bismuth nanoparticles/conductive polymers/carbon nanotubes(Bi/PPy/CNT)hybrid anode material for K-ion *** a current density of 100 mA·g^(-1),its reversible capacity reaches 302 mAh·g^(-1) after 200 cycles,while it reaches 195.7 mAh·g^(-1) after 600 cycles at 1 A·g^(-1).Its excellent performance is attributed to the hydrogel network which provides a range of electron transport networks and high *** nanotubes are used as electron enhancers to reduce the volume expansion of Bi particles during the *** study provides a prerequisite for expanding the application of 3D ternary materials.

关键词： Bismuth Nanostructures Conducting materials Potassium ion battery Energy storage

A Refractive Index Sensor Based on Four-Wave Mixing in D-Shaped Tellurite Photonic Crystal Fiber

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Photonic Sensors 2023年第3期13卷 90-98页

作者： Yuanhongliu GAO Xin YAN xiaoyu chen Bin LI Tonglei chenGCollege of Information Science and Engineering State Key Laboratory of Synthetical Automation for Process Industries Northeastern University Shenyang 110819China

In this study,we design a refractive index(RI)sensor using a novel cadmium telluride photonic crystal fiber(TPCF).Based on four-wave mixing(FWM),the changes in RI can be accurately detected,and RI sensing in the mid-infrared region(MIR)can be achieved by detecting wavelength shifts in the Stokes and anti-Stokes spectra caused by the changes in RI of the liquid to be *** the pump wavelength of FWM lies in the normal and abnormal dispersion regions of the TPCF,the RI response of the idler frequency wave and the signal wave are analyzed by numerical simulation *** simulation results show that the RI sensitivity of the sensor can be as high as 7692 nm/RIU with a linearity is up to 99.9%at the pump wavelength of 3380 *** our knowledge,the RI sensing sensitivity of the MIR is presented for the first time in this study by using FWM in the non-silicon PCF.

关键词： Refractive index sensing tellurite photonic crystal fiber parametric gain,four wave mixing mid-infrared region

Ameliorative effect of Lacticaseibacillus rhamnosus Fmb14 from Chinese yogurt on hyperuricemia

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Food Science and Human Wellness 2023年第4期12卷 1379-1390页

作者： Hongyuan Zhao xiaoyu chen Fanqiang Meng Libang Zhou Xinyi Pang Zhaoxin Lu Yingjian Lu College of Food Science and Technology Nanjing Agricultural UniversityNanjing 210095China College of Food Science and Engineering Nanjing University of Finance and EconomicsNanjing 210023China

Hyperuricemia is a critical threat to human health,and a high inosine diet can increase the prevalence of *** rhamnosus Fmb14 was isolated from traditional fermented Chinese yogurt,and its inosine degradation rate reached 36.3%at 109 CFU/mL for 24 ***-MS analysis revealed that high concentrations of inosine could activate compensatory metabolic pathways of *** Fmb14 to catalyse inosine as an energy source and produce intracellular folic acid and *** contents of folic acid and riboflavin were 6.0 and 4.3 fold increased after inosine treatment in the cell-free extracts(CFE).*** Fmb14 CFE treatment ameliorates hyperuricemia through xanthine oxidase(XOD)inhibition and ATP-binding cassette subfamily G member 2(ABCG2)promotion,both of which are responsible for uric acid(UA)synthesis and secretion in HepG2 and Caco2 cells,*** in vivo results showed that the serum UA level decreased from 236.28 to 149.28μmol/L after 8 weeks of oral administration of *** Fmb14 in inosine-induced hyperuricemia model *** results revealed that *** Fmb14 has a potential as a biological therapeutic agent in hyperuricemia prevention.

关键词： Lacticaseibacillus rhamnosus Fmb14 Hyperuricemia Inosine degradation Uric acid metabolism

A prediction-oriented optimal design for visualisation recommender systems

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Statistical Theory and Related Fields 2021年第2期5卷 134-148页

作者： Yingyan Zeng Xinwei Deng xiaoyu chen Ran Jin Grado Department of Industrial and Systems Engineering Virginia TechBlacksburgVAUSA Department of Statistics Virginia TechBlacksburgVAUSA

A good visualisation method can greatly enhance human-machine collaboration in target *** aid the optimal selection of visualisations for users,visualisation recommender systems have been developed to provide the right visualisation method to the right person given specific contexts.A visualisation recommender system often relies on a user study to collect data and conduct analysis to provide personalised ***,a user study without employing an effective experimental design is typically expensive in terms of time and *** this work,we propose a prediction-oriented optimal design to determine the user-task allocation in the user study for the recommendation of visualisation *** proposed optimal design will not only encourage the learning of the similarity embedded in the recommendation responses(i.e.,users’preference),but also improve the modelling accuracy of the similarities captured by the covariates of contexts(i.e.,task attributes).A simulation study and a real-data case study are used to evaluate the proposed optimal design.

关键词： Design of experiments space-filling design user-task allocation V-optimality visualisation recommender system

Functional Connectivity-Based Modelling Simulates SubjectSpecific Network Spreading Effects of Focal Brain Stimulation

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Neuroscience Bulletin 2018年第6期34卷 921-938页

作者： xiaoyu chen chencheng Zhang Yuxin Li Pei Huang Qian Lv Wenwen Yu Shengdi chen Bomin Sun Zheng Wang Institute of Neuroscience State Key Laboratory of NeuroscienceChinese Academy of Sciences Center for Excellence in Brain Science and Intelligence TechnologyShanghai Instittite for Biological SciencesChinese Academy of SciencesShanghai 200031China University of Chinese Academy of Sciences Beijing 100049China Department of Functional Neurosurgery Ruijin HospitalShanghai Jiao Tong University School of MedicineShanghai 200025China Department of Radiology Huashan HospitalFudan UniversityShanghai 200040China Department of Neurology Ruijin HospitalShanghai Jiao Tong University School of MedicineShanghai 200025China

Neurostimulation remarkably alleviates the symptoms in a variety of brain disorders by modulating the brain-wide network. However, how brain-wide effects on the direct and indirect pathways evoked by focal neurostimulation elicit therapeutic effects in an individual patient is unknown. Understanding this remains crucial for advancing neural circuit-based guidance to optimize candidate patient screening, pre-surgical target selection, and post-surgical parameter tuning. To address this issue, we propose a functional brain connectome-based modeling approach that simulates the spreading effects of stimulating different brain regions and quantifies the rectification of abnormal network topology in silico. We validated these analyses by pinpointing nuclei in the basal ganglia circuits as top-ranked targets for 43 local patients with Parkinson’s disease and 90 patients from a public database. Individual connectome-based analysis demonstrated that the globus pallidus was the best choice for 21.1% and the subthalamic nucleus for 19.5% of patients. Down-regulation of functional connectivity(up to 12%) at these prioritized targets optimally maximized the therapeutic effects. Notably, the priority rank of the subthalamic nucleus significantly correlated with motor symptom severity(Unified Parkinson’s Disease Rating Scale III) in the local cohort. These findings underscore the potential of neural network modeling for advancing personalized brain stimulation therapy,and warrant future experimental investigation to validate its clinical utility.

关键词： Brain stimulation Functional connectivity Whole-brain modeling Parkinson's disease Individual variability

天麻钩藤饮联合倍他司汀治疗卒中后眩晕患者的效果

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中国民康医学 2024年第1期36卷 99-102页

作者：陈晓瑜张慧慧张瑜上官稳河南科技大学第二附属医院神经内科三病区河南洛阳471100

目的:观察天麻钩藤饮联合倍他司汀治疗卒中后眩晕患者的效果。方法:选取2022年1月至2023年2月该院收治的88例卒中后眩晕患者进行前瞻性研究,按照随机数字表法将其分为对照组和研究组各44例。对照组给予倍他司汀治疗,研究组在对照组基础... 详细信息

目的:观察天麻钩藤饮联合倍他司汀治疗卒中后眩晕患者的效果。方法:选取2022年1月至2023年2月该院收治的88例卒中后眩晕患者进行前瞻性研究,按照随机数字表法将其分为对照组和研究组各44例。对照组给予倍他司汀治疗,研究组在对照组基础上联合天麻钩藤饮治疗,比较两组临床疗效,眩晕症状消失时间和眩晕程度[眩晕障碍量表(DHI)]评分,治疗前后脑血流动力学指标[脑前动脉(ACA)血流速度、椎基底动脉(BA)血流速度]水平、血清学指标[降钙素基因相关肽(CGRP)、肌酸激酶同工酶(CK-MB)、脑钠肽(BNP)]水平及不良反应发生率。结果:研究组治疗总有效率为95.45%(42/44),高于对照组的79.55%(35/44),差异有统计学意义(P0.05)。结论:天麻钩藤饮联合倍他司汀片治疗卒中后眩晕患者,可提高临床疗效,减轻眩晕症状,加快脑部动脉血液循环,改善神经信号传导,促进眩晕症状消失,效果优于单纯倍他司汀治疗。

关键词：天麻钩藤饮倍他司汀卒中眩晕血流动力学不良反应