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Electrocatalysis induced reconstruction of RuNiPO for highly efficient hydrogen evolution reaction

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Journal of Energy Chemistry 2023年第12期87卷 24-31,I0003页

作者： junhui Hu Bai Xu Jiabin Xu Shuo Li Zhonghu Liu Cheng lu Yong Feng Kun Feng Jun Zhong Institute of Functional Nano and Soft Materials Laboratory(FUNSOM) Jiangsu Key Laboratory of Advanced Negative Carbon TechnologiesSoochow UniversitySuzhou 215123JiangsuChina Department of Chemistry University of Western OntarioLondonOntario N6A 5B7Canada

Reconstruction during the catalytic process has been considered to play a key role for the *** we report a RuNiPO based catalyst for efficient alkaline hydrogen evolution reaction(HER),which can benefit from a long-term reconstruction during HER for 10 h to continuously increase the *** final catalyst(e-RuNiPO)shows a huge morphology change from bulk sphere to highly exposed layered structure in the electrocatalysis process,and exhibits an interesting electronic structure modification with the electron transfer from Ru to Ni for better interfacial interaction and quick charge *** to the favorable morphology with more exposed active sites and the optimized electronic structure,the final catalyst can achieve an outstanding performance with only an overpotential of 15 mV at 10 mA cm^(-2)(with a good stability more than 100 h),even outperforming the performance of benchmark 20 wt%Pt/C catalyst(18 mV at 10 mA cm^(-2))by using a much lower Ru content.

关键词： Electrocatalyst Electrochemical reconstruction Hydrogen evolution reaction X-ray absorption spectroscopy

Bionic lightweight design of limb leg units for hydraulic quadruped robots by additive manufacturing and topology optimization

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Bio-Design and Manufacturing 2024年第1期7卷 1-13页

作者： Huaizhi Zong junhui Zhang Lei Jiang Kun Zhang Jun Shen Zhenyu lu Ke Wang Yanli Wang Bing Xu The State Key Laboratory of Fluid Power and Mechatronic Systems Zhejiang UniversityHangzhou 310058China Unmanned Vehicle Research and Development Center China North Vehicle Research InstituteBeijing 100072China School of Mechatronic Engineering Nanchang UniversityNanchang 330031China Auclean High-Tech Ltd. Wuxi 214108China

Galloping cheetahs,climbing mountain goats,and load hauling horses all show desirable locomotion capability,which motivates the development of quadruped *** various quadruped robots,hydraulically driven quadruped robots show great potential in unstructured environments due to their discrete landing positions and large *** the most critical movement unit of a quadruped robot,the limb leg unit(Llu)directly affects movement speed and reliability,and requires a compact and lightweight *** by the dexterous skeleton–muscle systems of cheetahs and humans,this paper proposes a highly integrated bionic actuator system for a better dynamic performance of an *** propose that a cylinder barrel with multiple element interfaces and internal smooth channels is realized using metal additive manufacturing,and hybrid lattice structures are introduced into the lightweight design of the piston *** addition,additive manufacturing and topology optimization are incorporated to reduce the redundant material of the structural parts of the *** mechanical properties of the actuator system are verified by numerical simulation and experiments,and the power density of the actuators is far greater than that of cheetah *** mass of the optimized Llu is reduced by 24.5%,and the optimized Llu shows better response time performance when given a step signal,and presents a good trajectory tracking ability with the increase in motion frequency.

关键词： Additive manufacturing Bionic lightweight design Limb leg unit Quadruped robot Trajectory tracking

Energy Storage Operation Modes in Typical Electricity Market and Their Implications for China

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Energy Engineering 2024年第9期121卷 2409-2434页

作者： junhui Liu Yihan Zhang Zijian Meng Meng Yang Yao lu Zhe Chai Zhaoyuan Wu State Grid Henan Economic Research Institute Zhengzhou450052China School of Electrical and Electronic Engineering North China Electric Power UniversityBeijing102206China

As the Chinese government proposes ambitious plans to promote low-carbon transition,energy storage will play a pivotal role in China’s future power ***,due to the lack of a mature electricity market environment and corresponding mechanisms,current energy storage in China faces problems such as unclear operational models,insufficient cost recovery mechanisms,and a single investment entity,making it difficult to support the rapid development of the energy storage *** contrast,European and American countries have already embarked on certain practices in energy storage operation *** exploration of key issues such as investment entities,market participation forms,and cost recovery channels in both front and back markets,a wealth of mature experiences has been ***,this paper first summarizes the existing practices of energy storage operation models in North America,Europe,and Australia’s electricity markets separately from front and back markets,finding that perfect market mechanisms and reasonable subsidy policies are among the main drivers for promoting the rapid development of energy storage ***,combined with the actual development of China’s electricity market,it explores three key issues affecting the construction of costsharing mechanisms for energy storage under market conditions:Market participation forms,investment and operation modes,and cost recovery ***,in line with the development expectations of China’s future electricitymarket,suggestions are proposed fromfour aspects:Market environment construction,electricity price formation mechanism,cost sharing path,and policy subsidy mechanism,to promote the healthy and rapid development of China’s energy storage industry.

关键词： Electricity market energy storage operational mode cost-sharing mechanism

基于能量分析重构VMD分量的直埋供热管道泄漏定位研究

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暖通空调 2024年第4期54卷 55-61,135页

作者：高茹霞李成王随林穆连波鲁军辉王海鸿李智刘建军北京建筑大学北京北京市热力集团有限责任公司北京北京热力装备制造有限公司北京

为提高声波法在复杂噪声环境下进行直埋供热管道泄漏定位的准确性,本文提出了基于能量分析重构有效模态分量的供热管道泄漏定位方法,即采用变分模态分解(VMD)将检测信号自适应地分解为一组本征模态函数(IMF),识别、提取有泄漏特征的有... 详细信息

为提高声波法在复杂噪声环境下进行直埋供热管道泄漏定位的准确性,本文提出了基于能量分析重构有效模态分量的供热管道泄漏定位方法,即采用变分模态分解(VMD)将检测信号自适应地分解为一组本征模态函数(IMF),识别、提取有泄漏特征的有效模态分量,并通过能量占比分析完成信号加权重构。泄漏实验和工程实测表明:常规VMD泄漏定位方法与本文方法的平均定位偏差分别为1.57、0.51 m,相对定位偏差分别为8.42%、2.75%,采用本文方法定位准确性提高67.34%;工程实测中,常规VMD方法未能发现管道泄漏位置,本文方法确定的泄漏位置定位偏差为1.78 m;本文方法可抑制有效模态分量中的残余噪声,降低噪声成分对泄漏定位的影响,提高复杂噪声环境下供热管道泄漏定位精度。

关键词：声波法供热管道变分模态分解能量分析信号重构信号降噪泄漏定位

Allelic variation in the coumarate 3-hydroxylase gene associated with wood properties of Catalpa fargesii Bur.

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Journal of Forestry Research 2021年第6期32卷 2517-2529页

作者： Nan lu Fang Mei Zhi Wang Nan Wang Yao Xiao Lisheng Kong Guanzheng Qu Wenjun Ma junhui Wang Key Laboratory of Tree Genetics and Breeding Key Laboratory of Tree Breeding and Cultivation of State Forestry AdministrationResearch Institute of ForestryChinese Academy of ForestryBeijing 100091People’s Republic of China Department of Biology Centre for Forest BiologyUniversity of Victoria3800 Finnerty RoadVictoriaBCCanada State Key Laboratory of Tree Genetics and Breeding Northeast Forestry UniversityHarbin 150040People’s Republic of China

Coumarate 3-hydroxylase(C3h)genes participate in the synthesis of lignin and may affect the properties of wood that are important for its commercial value.A better understanding of the natural variation in C3h genes and their associations to wood properties is required to effectively improve wood *** used a candidate gene-based association mapping approach to identify CfC3h allelic variants associated with traits that affect the wood properties of Catalpa *** first isolated the full-length CfC3h cDNA(1825 bp),which was expressed at relatively high levels in xylem according to real time-polymerase chain *** totally,17 common single-nucleotide polymorphisms(minor allele frequency>5%)were identified through cloning and sequencing the CfC3h locus from a mapping population(including 88 unrelated natural *** individuals collected from main distribution area).Nucleotide diversity and linkage disequilibrium(LD)in CfC3h indicate that CfC3h has low nucleotide diversity(π_(t)=0.0031 andθ_(w)=0.0103)and relatively low LD(within 1800 bp;r^(2)≥0.1).An association analysis identified eight common single-nucleotide polymorphisms(SNPs)(false discovery rate,Q<0.10)and ten haplotypes(Q<0.10)associated with wood properties,explaining 4.92-12.09%of the phenotypic variance in an association population consisted of 125 unrelated natural individuals(The 88 individuals from the mapping population were comprised in the association population).Our study would provide new insight into C3h gene affecting wood quality,and the SNP markers identified would have potential applications in marker-assisted breeding in the future.

关键词： Catalpa fargesii Coumarate 3-hydroxylase Haplotype-based association analyses Linkage disequilibrium Single-nucleotide polymorphisms Wood properties

Thiocyanate-induced labilization of schwertmannite: Impacts and mechanisms

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Journal of Environmental Sciences 2019年第6期31卷 218-228页

作者： Cong Fan Chuling Guo junhui Zhang Cui Ding Xiaofei Li John R.Reinfelder Guining lu Zhenqing Shi Zhi Dang School of Environment and Energy South China University of Technology The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters Ministry of Education Department of Environmental Sciences Rutgers University

Schwertmannite is an amorphous iron(III)-oxyhydroxysulfate that forms in acid mine drainage(AMD) environments. The characteristic of high heavy metal adsorption capability makes schwertmannite a potentially useful, environmentally friendly material in wastewater treatment. Unstable schwertmannite is prone to *** the mechanisms that induce schwertmannite labilization and affect its capacity to remove heavy metals are of great environmental and geochemical ***(SCNˉ) is a hazardous pseudohalide that is also normally found in ***, little is known about the impact of Fe(III)-binding ligand SCNˉ on schwertmannite stability and its subsequent capacity to bind trace elements. Here, we investigated the adsorption of SCNˉ on schwertmannite and subsequent mineral transformation to characterize this little-known process. The appearance of Fe2+indicated that the interactions between schwertmannite and SCNˉ may involve complexation and reduction reactions. Results showed that the majority of the adsorbed-SCNˉ was immobilized on schwertmannite during the 60-days transformation. The transformation rates of schwertmannite increased with increasing concentrations of SCNˉ. Goethite was detected as the dominant transformation product with or without SCNˉ. The mechanisms of SCNˉ-promoted dissolution of schwertmannite can be described as follows:(1) formation of Fe(III)–NCS complexes on the schwertmannite surface and in solution, a process which increases the reactivity of solid phase Fe(III);(2) the extraction of Fe(III) from schwertmannite by SCNˉ and subsequent schwertmannite dissolution; and(3) the formation of secondary minerals from extracted Fe(III). These findings may improve AMD treatment strategies and provide insight into the use and potential reuse of schwertmannite as a trace element sorbent.

关键词： Thiocyanate Schwertmannite Stability Ligand-promoted dissolution

Global Lysine Acetylome Analysis of Flower Bud Development in Catalpa bungei

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Phyton-International Journal of Experimental Botany 2022年第3期91卷 507-524页

作者： Danlong Jing Nan Wang Nan lu Guanzheng Qu Guolu Liang Wenjun Ma Shougong Zhang junhui Wang State Key Laboratory of Tree Genetics and Breeding Key Laboratory of Tree Breeding and Cultivation of State Forestry and Grassland AdministrationResearch Institute of ForestryChinese Academy of ForestryBeijing100091China Key Laboratory of Horticulture Science for Southern Mountains Regions of Ministry of Education College of Horticulture and Landscape ArchitectureAcademy of Agricultural SciencesSouthwest UniversityChongqing400715China State Key Laboratory of Tree Genetics and Breeding Northeast Forestry UniversityHarbin150040China

Lysine acetylation,a reversible and dynamic post-translational modification,plays pivotal roles in regulating many biological processes in ***,the information of lysine acetylation during flower development of woody angiosperm remains ***,we identified a total of 667 lysine acetylation sites in 467 proteins in flower buds of Catalpa *** acetylated proteins were mainly involved in the pathways of carbon metabolism,glycometabolism and oxidative *** functional enrichment analysis,61 and 13 acetylated proteins were involved in the glycometabolism and oxidative phosphorylation pathways,*** suggests that lysine acetylated proteins play critical roles in the energy metabolism ***,the protein–protein interactions were also highly enriched in the carbon metabolic *** analysis of lysine acetylome and transcriptome showed that transcript level changes of seven key lysine-acetylated proteins/genes involved in energy metabolism were significant different during floral ***,compared with the normal flowering variety,the expression levels of phosphoribulokinase,phosphoenolpyruvate carboxykinase,ATP synthase and pyruvate dehydrogenase complex genes were significantly up-regulated at the stages of vegetative and transition buds during early flowering of *** data represent the first lysine acetylome in the *** flowers,and can serve as an essential basis for exploring the function of lysine acetylated proteins in the flower bud development of plants.

关键词： Lysine acetylome Catalpa bungei flower development energy metabolism

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焦麦芽烤甜香关键成分的确定及制备工艺优化

中国烟草科学 2016年第5期37卷 68-74页

作者：杨鹏元洪广峰马宇平蔡莉莉陈芝飞于建春王丁众马骥杨伟平刘俊辉卢斌斌张文娟北方民族大学材料科学与工程学院银川750021 郑州大学材料科学与工程学院郑州450001 中国烟草总公司郑州烟草研究院郑州450001 河南中烟工业有限责任公司技术中心郑州450000

为开发能够增加卷烟烟气烤甜香香韵的烟用香料,以焦麦芽为原料,采用卷烟感官作用导向分析和气质联用(GC/MS)方法确定了焦麦芽提取物中的烤甜香关键成分,并以这些成分的含量为指标优化了焦麦芽烤甜香香料的制备工艺。结果表明,1经凝胶渗... 详细信息

为开发能够增加卷烟烟气烤甜香香韵的烟用香料,以焦麦芽为原料,采用卷烟感官作用导向分析和气质联用(GC/MS)方法确定了焦麦芽提取物中的烤甜香关键成分,并以这些成分的含量为指标优化了焦麦芽烤甜香香料的制备工艺。结果表明,1经凝胶渗透色谱(GPC)分离和感官评价确定的焦麦芽烤甜香特征组分中含有麦芽酚、4-羟基-2,5-二甲基-3(2H)-呋喃酮、甲基环戊烯醇酮等15种关键成分。2优化的加热提取工艺参数为95%乙醇、料液质量比1:6、提取温度80℃、提取时间2.0 h、提取2次;脱蜡工艺参数为回溶乙醇浓度95%、回溶液中干物质含量20%和冷冻温度-20℃。3制备的焦麦芽烤甜香特征香料中烤甜香关键成分含量明显高于市售麦芽提取物和焦麦芽粗提物,且添加该烤甜香特征香料的样品卷烟烟气烤甜香更加突出。

关键词：烟用香料焦麦芽提取物卷烟感官作用评价烤甜香香韵气谱联用(GC/MS)

Integration of Prealbumin into Child-Pugh Classification Improves Prognosis Predicting Accuracy in HCC Patients Considering Curative Surgery

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Journal of Clinical and Translational Hepatology 2018年第4期6卷 377-384页

作者： Xiajie Wen Mingjie Yao Yiwei lu junhui Chen Jiyuan Zhou Xiangmei Chen Yun Zhang Weiquan lu Xiangjun Qian Jingmin Zhao Ling Zhang Shigang Ding Fengmin lu Department of Minimally Invasive Intervention Peking University Shenzhen HospitalShenzhen PKU-HKUST Medical CenterShenzhenChina Department of Microbiology&Infectious Disease Center School of Basic Medical SciencesPeking University Health Science CenterBeijingChina Department of Hepatopancreatobiliary Surgery Henan Cancer Hospital Affiliated to Zhengzhou UniversityZhengzhouChina Department of Pathology and Hepatology Beijing 302 HospitalBeijingChina Peking University Third Hospital Department of GastroenterologyBeijingChina University of North Carolina-Eshelman School of Pharmacy Chapel HillNCUSA

Background and Aims:The poor outcomes of hepatocellular carcinoma(HCC)patients may be due to not only malignant tumors but also limited liver ***,as stated in major guidelines,only patients with relatively normal liver function(Child-Pugh A)would be referred for curative *** so,the postsurgery survival rate of patients is still extremely *** curative resection may benefit most *** study aimed to improve the prognosis predicting accuracy of the Child-Pugh scoring ***:This study included two cohorts:cohort A being composed of 613 HCC patients,with a 23-month median postsurgery follow-up time;and cohort B being composed of 554 tumor-free chronic liver disease ***-Meier test and Cox model were used for survival ***-samples t test or one-way ANOVA was used to test the differences between different ***:Serum prealbumin levels were found inversely correlated with worsening of flbrotic scores(r=-0.482,pluable prognosis predicting biomarker for Child-Pugh A HCC patients who may be under consideration for curative *** serum prealbumin included as one of the parameters,the MCP scoring system might improve the postsurgery survival predicting accuracy for HCC patients.

关键词： Hepatocellular carcinoma Curative resection Survival Child-Pugh prealbumin