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Stoichiometry design in hierarchical CoNiFe phosphide for highly efficient water oxidation

science china Materials 2022年第10期65卷 2685-2693页

作者： Jiangbo Chen Jie Ying Yuxuan Xiao Yuan Dong Kenneth IOzoemena Silvia Lenaerts Xiaoyu Yang State key Laboratory of Advanced technology for Materials Synthesis and Processing School of Materials Science and Engineering&Shenzhen Research Institute&Joint Laboratory for Marine Advanced Materials in Pilot National Laboratory for Marine Science and Technology(Qingdao)Wuhan University of TechnologyWuhan 430070China School of Chemical Engineering and technology Sun Yat-sen UniversityZhuhai 519082China Molecular sciences Institute School of ChemistryUniversity of the WitwatersrandPrivate Bag 3Johannesburg 2050South Africa Research Group Sustainable Energy Air and Water TechnologyDepartment of Bioscience EngineeringUniversity of AntwerpAntwerp 2020Belgium School of Engineering and Applied sciences Harvard UniversityCambridgeMassachusetts 02138USA

Rational composition design of trimetallic phosphide catalysts is of significant importance for enhanced surface reaction and efficient catalytic ***,hierarchical Co_(x)Ni_(y)Fe_(z)P with precise control of stoichiometric metallic elements(x:y:z=(1-10):(1-10):1)has been synthesized,and Co_(1.3)Ni_(0.5)Fe_(0.2)P,as the most optimal composition,exhibits remarkable catalytic activity(η=320 mV at 10 mA cm^(−2))and long-term stability(ignorable decrease after 10 h continuous test at the current density of 10 mA cm^(−2))toward oxygen evolution reaction(OER).It is found that the surface P in Co_(1.3)Ni_(0.5)Fe_(0.2)P was replaced by O under the OER *** density function theory calculations before and after long-term stability tests suggest the clear increasing of the density of states near the Fermi level of Co_(1.3)Ni_(0.5)Fe_(0.2)P/Co_(1.3)Ni_(0.5)Fe_(0.2)O,which could enhance the OH−adsorption of our electrocatalysts and the corresponding OER performance.

关键词： trimetallic phosphides hierarchical structures stoichiometry design charge transfer oxygen evolution reaction

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Review on the mesoscale characterization of cement-stabilized macadam materials

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Journal of Road Engineering 2023年第1期3卷 71-86页

作者： Qiao Dong Shiao Yan Xueqin Chen Shi Dong Xiaokang Zhao Pawel Polaczyk Department of Roadway Engineering School of TransportationSoutheast UniversityNanjing 211189China National Demonstration Center for Experimental Road and Traffic Engineering Education Southeast UniversityNanjing 211189China Department of Civil Engineering Nanjing University of Science&TechnologyNanjing 210094China College of Transportation Engineering Chang'an UniversityXi'an 710064China School of Highway Chang'an UniversityXi'an 710064China Department of Civil and Environmental Engineering University of TennesseeKnoxvilleTN 37996USA

The base layer constructed by cement-stabilized macadam(CSM)has been widely used in highway construction due to its low elasticity deformation and high carrying *** a bearing layer,the CSM base is not exempt from fatigue cracking under cyclic loading in the service *** in the base will create irreversible structural and functional deficiencies,such as the potential for reflective cracking of subsequently placed asphalt concrete *** fracture of the base will shorten the service life of the *** quality of the CSM base is directly related to the bearing capacity and integrity of the whole pavement *** is of practical significance to further study the fatigue failure behavior of CSM material for the long-term performance of the *** CSM material is a typical heterogeneous multiphase *** the mesoscale,CSM consists of aggregate,cement mortar,pores,and the interface transitional zone(ITZ).On the microscale,the hardened mortar contains a large number of capillary pores,unhydrated particles,hydrated crystals,etc.,which makes the spatial distribution of its material properties *** addition,cement hydration,dry shrinkage,and temperature shrinkage can also produce micro-crack defects in cement *** microcracks will have crossscale evolution under load,resulting in structural *** complex deformation and mechanical response are the reflections of its microscopic and even mesoscale composition and *** study summarized the existing studies on the mesoscopic properties of CSM materials,respectively from the three aspects of mesostructure,structural characterization,and mesoscale fatigue damage analysis,to help the development of long-life *** future research direction is to explore the mesoscale characteristics of CSM using multiscale representation and analysis methods,to establish the connection between mesoscale characteristics and macroscopic mechanical propertie

关键词： Road engineering Cement-stabilized macadam Fatigue cracking Mesoscale simulation

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Age differences in associations of serum alkaline phosphatase and mortality among peritoneal dialysis patients

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Chinese Medical Journal 2019年第2期132卷 232-236页

作者： Juan Wu Xin-Hui Liu Rong Huang Hai-Shan Wu Qun-Ying GUO Chun-Yan Yi Xue-Qing YU Xiao Yang Department of Nephrology The First Affiliated HospitalSun Yat-sen UniversityGuangzhouGuangdong 510080China key Laboratory of Nephrology Nationa[Health Commission and Guangdong ProvinceGuangzhouGuangdong 510080China Department of Nephrology Zhejiang Provincial People's HospitalHangzhouZhejiang 310014China

To the Editor:Serum alkaline phosphatase (ALP) is an important bone turnover marker in chronic kidney disease (CKD) patients, with studies indicating that higher serum ALP levels are associated with increased mortality in hemodialysis (HD) patients.[1] Our previous study also showed that higher serum ALP levels were independently associated with all-cause and cardiovascular mortality in peritoneal dialysis (PD) patients.

关键词： Serum alkaline phosphatase turnover chronic kidney

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Research on parametric modeling and computing of multi-tower suspension bridge based on ANSYS

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Engineering sciences 2012年第3期10卷 49-54页

作者： Feng Zhaoxiang Zhao An Song Jianyong Yang Yun Jiangsu Provincial Yangtze River Highway Bridge Construction Commanding Department Taizhou Jiangsu 225321 China Research Institute of Highway Ministry of Transport Beijing 100088 China

Based on FEM (finite element method) program ANSYS and the OpenGL graphics, this paper develops the parametric modeling module and the computing module of the multi-tower suspension bridge, the modules being embedded into the ANSYS system, and the parametric modeling module parameters can be entered by way of interface, which can fast establish a multi-tower suspension bridge model. Calculation module can establish load conditions for the features of road bridge and specifications, in which multiple conditions can be defined and solved automatically. Post-processing part of the solution also serves the results of the subtotals and selects the output, so that the results of the output and finishing work have become more convenient and easier, and also the results can be saved in word, excel and other different file types.

关键词： ANSYS suspension bridge parametric modeling computing

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An algorithm to resolve γ-rays from charged cosmic rays with DAMPE

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Research in Astronomy and Astrophysics 2018年第3期18卷 25-36页

作者： Zun-Lei Xu Kai-Kai Duan Zhao-Qiang Shen Shi-Jun Lei Tie-Kuang Dong Fabio Gargano Simone Garrappa Dong-Ya Guo Wei Jiang Xiang Li Yun-Feng Liang Mario Nicola Mazziotta Maria Fernanda Munoz Salinas Meng Su Valerio Vagelli Qiang Yuan Chuan Yue Jing-Jing Zang Ya-Peng Zhang Yun-Long Zhang Stephan Zimmer key Laboratory of Dark Matter and Space Astronomy Purple Mountain Observatory Chinese Academy of Sciences Nanjing 210008 China University of Chinese Academy of sciences Beijing 100049 China Istituto Nazionale di Fisica Nucleare Sezione di Bari I-70125 Bari Italy Istituto Nazionale di Fisica Nucleare Sezione di Perugia I-06123 Perugia Italy Dipartimento di Fisica e Geologia Universita degli Studi di Perugia I-06123 Perugia Italy Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 China Department of Nuclear and Particle Physics University of Geneva CH- 1211 Switzerland School of Astronomy and Space science University of Science and Technology of China Hefei 230026 China Institute of Modern Physics Chinese Academy of Sciences Lanzhou 730000 China State key Laboratory of Particle Detection and Electronics University of Science and Technology of China Hefei 230026 China

The DArk Matter Particle Explorer（DAMPE）,also known as Wukong in china,which was launched on 2015 December 17,is a new high energy cosmic ray and γ-ray satellite-borne *** of the main scientific goals of DAMPE is to observe Ge V-Te V high energy γ-rays with accurate energy,angular and time resolution,to indirectly search for dark matter particles and for the study of high energy astrophysics. Due to the comparatively higher fluxes of charged cosmic rays with respect to γ-rays,it is challenging to identify γ-rays with sufficiently high efficiency,minimizing the amount of charged cosmic ray contamination. In this work we present a method to identify γ-rays in DAMPE data based on Monte Carlo simulations,using the powerful electromagnetic/hadronic shower discrimination provided by the calorimeter and the veto detection of charged particles provided by the plastic scintillation detector. Monte Carlo simulations show that after this selection the number of electrons and protons that contaminate the selected γ-ray events at～10 Ge V amounts to less than 1% of the selected ***,we use flight data to verify the effectiveness of the method by highlighting known γ-ray sources in the sky and by reconstructing preliminary light curves of the Geminga pulsar.

关键词： gamma rays general - instrumentation detectors - methods data analysis

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Precision interventional radiology

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Journal of Interventional Medicine 2021年第4期4卷 155-158页

作者： Jiansong Ji Shiji Fang Minjiang chen Liyun zheng Weiqian Chen Zhongwei Zhao Yongde Cheng key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research Lishui Hospital of Zhejiang UniversityFifth Affiliated Hospital of Wenzhou Medical UniversityLishui323000China Magazine of the Journal of Interventional Medicine Shanghai200052China

The recent interest in precision medicine among interventionists has led to the establishment of the concept of precision interventional radiology(PIR).This concept focuses not only on the accuracy of interventional operations using traditional image-guided techniques,but also on the comprehensive evaluation of *** invisible features extracted from CT,MRI,or US improve the accuracy and specificity of *** integration of multi-omics and molecule imaging provides more information for interventional *** development and application of drugs,embolic materials,and devices broaden the concept of *** medicine and engineering brings new image-guided techniques that increase the efficacy of interventional operations while reducing the complications of interventional *** all,PIR,an important part of precision medicine,emphasizing the whole disease management process,including precision diagnosis,comprehensive evaluation,and interventional therapy,maximizes the benefits of patients with limited damage.

关键词： Precision interventional radiology Anatomical location Comprehensive evaluation Interventional therapy Precision diagnosis

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Phenotypic Diversity of Different Populations of Paeonia ludlowii in Nyingchi of Tibet

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Medicinal Plant 2019年第4期10卷 62-65页

作者： Qingsong GE Yi GAO Hang WANG Jiangping FANG Res. Institute of Tibet Plateau Ecology Tibet Agriculture & Animal Husbandry University Nyingchi 860000 China Tibet key Laboratory of Forest Ecology in Plateau Area Ministry of Education Nyingchi 860000 China National key Station of Field Scientific Observation & Experiment Nyingchi 860000 China key Laboratory of Forest Ecology in Plateau Area Tibet Autonomous Region Nyingchi 860000 China United key Laboratories of Ecological Security Tibet Autonomous Region Nyingchi 860000 China Resources & Environment College Tibet Agriculture & Animal Husbandry University Nyingchi 860000 China Food science College Tibet Agriculture & Animal Husbandry University Nyingchi 860000 China

[Objectives] To study the differences in fruit traits of different populations of Paeonia ludlowii , and to provide basic data for the identification, protection and utilization of germplasm resources of P. ludlowii .[Methods] Nine fruit traits of three different populations of P. ludlowii in Tibet were tested and analyzed.[Results] The mean values of 9 fruit traits of P. ludlowii were different in different populations;the coefficients of variation of different traits of different populations were also different;there were morphological differences of different sizes among individuals in each population;there were significant differences in 8 traits (pod length, pod width, pod thickness, pod weight, seeds per pod, seed length, seed width, and seed weight) among different populations. Among the 9 traits of the three P. ludlowii populations, the variability of the five traits was higher in the fruit pods, the variation degree of five traits including pod weight, pod thickness, seeds per pod, and seed weight was higher. It is of great significance for the screening and preservation of the germplasm resources of P. ludlowii . According to the principal component analysis (PCA), the seed weight, seed width, and seed length, i.e. the seed traits, were the main factors causing differences in fruit traits among populations. There was a certain correlation between different traits of P. ludlowii . Among the 36 Pearson- related combinations of 9 fruit traits, 11 combinations had extremely significant correlations, and 8 combinations had significant correlations, indicating that there was a certain correlation between fruit traits in the growth and development. Through cluster analysis, three populations of P. ludlowii can be divided into two categories. The BV population was a category, which is characterized by long pods, long seeds, wide seeds, thick seeds and large seed weight. Therefore, the BV population is suitable material for breeding excellent varieties.[Conclusions

关键词： Paeonia ludlowii Different populations Fruit traits Diversity

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优化RFID网络的含云生成算子的粒子群优化算法（英文）

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广州大学学报（自然科学版） 2017年第2期16卷 82-88页

作者：高鹰广州大学计算机科学与教育软件学院广东广州510006

RFID网络规划问题是一个优化难题,文章给出一个含云生成算子的粒子群优化算法用于求解该问题.在该算法的子代生成框架中,新粒子通过云方式或PSO方式产生.(1)应用反向云生成算子,PSO认知种群被用于估计好解区域的期望、熵和超熵;(2)利用... 详细信息

RFID网络规划问题是一个优化难题,文章给出一个含云生成算子的粒子群优化算法用于求解该问题.在该算法的子代生成框架中,新粒子通过云方式或PSO方式产生.(1)应用反向云生成算子,PSO认知种群被用于估计好解区域的期望、熵和超熵;(2)利用正向云生成算子,估计的期望、熵和超熵被用于生成云粒子;(3)来自PSO粒子的局部信息和来自云粒子的全局信息共同引导算法的下一步寻优.该算法优化文献中一些著名的RFID网络基准测试实例,实验结果显示该算法比原始的PSO有好的优化能力.

关键词： RFID网络粒子群优化算法反向云生成算子正向云生成算子

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Particle erosion of C/C-SiC composites with different Al addition in reactive melt infiltrated Si

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Journal of Central South University 2020年第9期27卷 2557-2566页

作者： LIU Lei FENG Wei LI Bo-yan LI Jian-ping ZHANG Lei-lei GUO Yong-chun HE Zi-bo CAO Yi BAO Ai-lin School of Materials and Chemical Engineering Xi'an Technological UniversityXi’an 710021China State key Laboratory of Solidification Processing Northwestern Polytechnical UniversityXi’an 710072China

Particle erosion of C/C-SiC composites prepared by reactive melt infiltration with different Al addition was studied by gas-entrained solid particle impingement ***,EDS and XRD were performed to analyze the composites before and after *** results indicate that a U shape relationship curve presents between the erosion rates and Al content,and the lowest erosion rate occurs at 40 wt%*** for the important influence of compactness,the increasing soft Al mixed with reactive SiC,namely the mixture located between carbon and residual Si also,plays a key role in the erosion of the C/C-SiC composites through crack deflection,plastic deformation and bonding cracked Si.

关键词： C/C-SiC Al addition reactive melt infiltration solid particle erosion

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Salt reduction in cured meat products: A review on strategies and mechanisms

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Food science and Human Wellness 2024年

作者： Qi Chen Jinxuan Cao Wenhai She Weidong Bai Xiaofang Zeng Hao Dong Guangdong Provincial key Laboratory of Lingnan Specialty Food science and technology， key Laboratory of Green Processing and Intelligent Manufacturing of Lingnan Specialty Food， Ministry of Agriculture， College of Light Industry and Food sciences， Academy of Contemporary Agricultural Engineering Innovations， Zhongkai University of Agriculture and Engineering School of Food and Health， Beijing technology and Business University guangzhou Luxu Food Ltd.

Sodium chloride is one of the most widely used additives in meat curing. However， cured meat products contribute to a portion of the total sodium dietary intake. Consumers and researchers’ concern about excessive sodium intake has prompted the food industry to consider ways to reduce salt content of cured meat products. The aim of this review is to provide a broad but comprehensive understanding of salt reduction strategies for cured meat products. The impact and limitations of each approach were discussed. Green technologies treatments， such as ultrasonic technology， high-pressure processing， seem to be potential to ensure microbiological safety in low-sodium cured meat products. However， these novel technologies can cause protein and fat oxidization in meat products. A combination of multiple treatments could give the desired effect. In addition， different parameter conditions need to be set according to the specific meat to achieve better salt reduction effect.

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