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Advances in electrochemical reduction of carbon dioxide to formate over bismuth-based catalysts

Rare Metals 2021年第9期40卷 2327-2353页

作者： Yu-Hong Wang wen-jun jiang Wei Yao Zai-Lun Liu Zhe Liu Yong Yang Li-Zhen Gao College of Environmental Science and Engineering Taiyuan University of TechnologyTaiyuan 030024China Qian Xuesen Laboratory of Space Technology China Academy of Space TechnologyBeijing 100094China State Key Laboratory of Solidification Processing Center of Advanced Lubrication and Seal Materials Northwestern Polytechnical University Xi’anXi’an 710072China School of Mechanical Engineering University of Western AustraliaPerth 6009Australia

Selective CO_(2) reduction to formate with highadded value is one of the most technologically and economically feasible pathways to realize electrochemical CO_(2) fixation. Bismuth-based catalysts have the advantages of nontoxicity, low cost, high abundance, as well as excellent stability. In addition, bismuth-based catalysts display excellent selectivity for the electrochemical reduction of CO_(2) to formate in aqueous electrolytes due to high-hydrogen evolution overpotential. Hence, bismuthbased catalysts are by far the most commercially available materials for electrochemical reduction of CO_(2) to *** this review, the electrochemical reduction of CO_(2) to formate over bismuth-based catalysts is elaborated. Firstly,this review describes performance evaluation indexes,evaluation systems and reaction mechanisms of the electrochemical reduction of CO_(2) to formate over bismuthbased catalysts. Subsequently, the research means to reveal the reaction mechanism of electrochemical reduction of CO_(2) to formate over bismuth-based catalysts and the performance improvement strategies of the reaction are described in detail. Finally, the opportunities and challenges in this encouraging field are discussed. We believe that this review will contribute to further development of electrochemical reduction of CO_(2) to formate over bismuthbased catalysts.

关键词： Electrochemical CO_(2)reduction Formate Bismuth-based catalysts Reaction research Performance improvement

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Enhancing N-Gram Based Metrics with Semantics for Better Evaluation of Abstractive Text Summarization

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Journal of Computer Science & Technology 2022年第5期37卷 1118-1133页

作者： Jia-Wei He wen-jun jiang Guo-Bang Chen Yu-Quan Le Xiao-Fei Ding College of Information Science and Electronic Engineering Hunan UniversityChangsha 410082China

Text summarization is an important task in natural language processing and it has been applied in many ***,abstractive summarization has attracted many ***,the traditional evaluation metrics that consider little semantic information,are unsuitable for evaluating the quality of deep learning based abstractive summarization models,since these models may generate new words that do not exist in the original ***,the out-of-vocabulary(OOV)problem that affects the evaluation results,has not been well solved *** address these issues,we propose a novel model called ENMS,to enhance existing N-gram based evaluation metrics with *** be specific,we present two types of methods:N-gram based Semantic Matching(NSM for short),and N-gram based Semantic Similarity(NSS for short),to improve several widely-used evaluation metrics including ROUGE(Recall-Oriented Understudy for Gisting Evaluation),BLEU(Bilingual Evaluation Understudy),*** and NSS work in different *** former calculates the matching degree directly,while the latter mainly improves the similarity *** we propose an N-gram representation mechanism to explore the vector representation of N-grams(including skip-grams).It serves as the basis of our ENMS model,in which we exploit some simple but effective integration methods to solve the OOV problem *** results over the TAC AESOP dataset show that the metrics improved by our methods are well correlated with human judgements and can be used to better evaluate abstractive summarization methods.

关键词： summarization evaluation abstractive summarization hard matching semantic information

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Improving Friend Recommendation for Online Learning with Fine-Grained Evolving Interest

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Journal of Computer Science & Technology 2022年第6期37卷 1444-1463页

作者： Ming-Min Shao wen-jun jiang Jie Wu Yu-Qing Shi Tak Shing Yum Ji Zhang College of Computer Science and Electronic Engineering Hunan UniversityChangsha 410082China Department of Computer and Information Sciences Temple UniversityPhiladelphia 19122U.S.A. School of Computer Science and Engineering Northeastern UniversityShenyang 110819China Department of Information Engineering Chinese University of Hong KongHong Kong 999077China Department of Mathematics and Computing University of Southern QueenslandBrisbaneQLD 4350Australia

Friend recommendation plays a key role in promoting user experience in online social networks(OSNs).However,existing studies usually neglect users’fine-grained interest as well as the evolving feature of interest,which may cause unsuitable *** particular,some OSNs,such as the online learning community,even have little work on friend *** this end,we strive to improve friend recommendation with fine-grained evolving interest in this *** take the online learning community as an application scenario,which is a special type of OSNs for people to learn courses *** partners can help improve learners’learning effect and improve the attractiveness of *** propose a learning partner recommendation framework based on the evolution of fine-grained learning interest(LPRF-E for short).We extract a sequence of learning interest tags that changes over ***,we explore the time feature to predict evolving learning ***,we recommend learning partners by fine-grained interest *** also refine the learning partner recommendation framework with users’social influence(denoted as LPRF-F for differentiation).Extensive experiments on two real datasets crawled from Chinese University MOOC and Douban Book validate that the proposed LPRF-E and LPRF-F models achieve a high accuracy(i.e.,approximate 50%improvements on the precision and the recall)and can recommend learning partners with high quality(e.g.,more experienced and helpful).

关键词： online social network friend recommendation fine-grained interest evolving feature tag online learning community

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THE CRACK INITIATION APPROACH FOR DURABILITY ANALYSIS

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Chinese Journal of Aeronautics 1993年第1期 32-36页

作者： Fei Bin-jun,Liu wen-ting,Xiong jun-jiang (Beijing University of Aeronautics and Astronautics,Beijing,China,100083)

A crack initial life analysis method for durability analysis is developed in this *** p—S-N curves of structure CIL is fitted with the shape parameters of material fatiguelife p-S-N curves. The probability of crack length exceeding the economic repair limitp(i,t) under load spectrum is established. The methods for estimation of damage degreeand economic life of structure are given. Finally, an example of point weld structure ispresented.

关键词： load CFA THE CRACK INITIATION APPROACH FOR DURABILITY ANALYSIS EIFS length CIL

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Colorectal cancer’s burden attributable to a diet high in processed meat in the Belt and Road Initiative countries

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World Journal of Gastrointestinal Oncology 2024年第1期16卷 182-196页

作者： Gu Liu Chang-Min Li Fei Xie Qi-Lai Li Liang-Yan Liao wen-jun jiang Xiao-Pan Li Guan-Ming Lu Department of Gastrointestinal Surgery The First Affiliated HospitalJinan UniversityGuangzhou 510630Guangdong ProvinceChina Department of Gastrointestinal Surgery Chenzhou Third People’s HospitalChenzhou 423000Hunan ProvinceChina Department of Gastrointestinal Surgery Chenzhou First People’s Hospital and the First Affiliated Hospital of Xiangnan UniversityChenzhou423000 Hunan ProvinceChina Department of Breast and Thyroid Surgery the Affiliated Hospital of Youjiang Medical University for NationalitiesBaise 533000Guangxi Zhuang Autonomous RegionChina Department of Health Management Center Zhongshan HospitalShanghai Medical College of Fudan UniversityShanghai 200032China

BACKGROUND Colorectal cancer(CRC)plays a significant role in morbidity,mortality,and economic cost in the Belt and Road Initiative(“B and R”)*** addition,these countries have a substantial consumption of processed ***,the burden and trend of CRC in relation to the consumption of a diet high in processed meat(DHPM-CRC)in these“B and R”countries remain *** To analyze the burden and trend of DHPM-CRC in the“B and R”countries from 1990 to *** We used the 2019 Global Burden of Disease Study to collate information regarding the burden of *** and age-standardized rates(ASRs)of deaths along with the disability-adjusted life years(DALYs)were determined among the“B and R”countries in 1990 and *** joinpoint regression analysis,the average annual percent change(AAPC)was used to analyze the temporal trends of age-standardized DALYs rate(ASDALR)from 1990 to 2019 and in the final decade(2010–2019).RESULTS We found geographical differences in the burden of DHPM-CRC among“B and R”countries,with the three highest-ranking countries being the Russian Federation,China,and Ukraine in 1990,and China,the Russian Federation,and Poland in *** burden of DHPM-CRC generally increased in most member countries from 1990 to 2019(all P<0.05).The absolute number of deaths and DALYs in DHPM-CRC were 3151.15[95%uncertainty interval(UI)665.74-5696.64]and 83249.31(95%UI 15628.64-151956.31)in China in ***,the number of deaths(2627.57-2528.51)and DALYs(65867.39-55378.65)for DHPM-CRC in the Russian Federation has *** fastest increase in ASDALR for DHPM-CRC was observed in Vietnam,Southeast Asia,with an AAPC value of 3.90%[95%confidence interval(CI):3.63%-4.16%],whereas the fastest decline was observed in Kyrgyzstan,Central Asia,with an AAPC value of-2.05%(95%CI:-2.37%to-1.73%).A substantial upward trend in ASR of mortality,years lived with disability,years of life lost,and DALYs from DHPM-CRC changes in 1990-2019 and the final de

关键词： Belt and Road Initiative countries Colorectal cancer Burden of disease Dietary risk factors Processed meat Disability-adjusted life years Trend analysis

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Network pharmacology-based exploration of molecular mechanisms underlying therapeutic effects of Jianpi Huatan Quyu recipe on chronic heart failure with spleen Qi deficiency syndrome

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World Journal of Cardiology 2024年第7期16卷 422-435页

作者： Si-Qi Li Dong-Yu Min jun-wen jiang Xiao-Ying Li Xu-Na Yang wen-Bo Gu Jia-Hui jiang Li-Hao Chen Han Nan Ze-Yu Chen Second Department of Cardiology The Affiliated Hospital of Liaoning University of Traditional Chinese MedicineShenyang 110000Liaoning ProvinceChina

BACKGROUND Chronic heart failure is a complex clinical *** Chinese herbal compound preparation Jianpi Huatan Quyu recipe has been used to treat chronic heart failure;however,the underlying molecular mechanism is still not *** To identify the effective active ingredients of Jianpi Huatan Quyu recipe and explore its molecular mechanism in the treatment of chronic heart *** The effective active ingredients of eight herbs composing Jianpi Huatan Quyu recipe were identified using the Traditional Chinese Medicine Systems Pharmacology Database and Analysis *** target genes of chronic heart failure were searched in the Genecards *** target proteins of active ingredients were mapped to chronic heart failure target genes to obtain the common drugdisease targets,which were then used to construct a key chemical componenttarget network using Cytoscape 3.7.2 *** protein-protein interaction network was constructed using the String *** Ontology and Kyoto Encyclopedia of Genes and Genomes enrichment analyses were performed through the Metascape ***,our previously published relevant articles were searched to verify the results obtained via network *** A total of 227 effective active ingredients for Jianpi Huatan Quyu recipe were identified,of which quercetin,kaempferol,7-methoxy-2-methyl isoflavone,formononetin,and isorhamnetin may be key active ingredients and involved in the therapeutic effects of TCM by acting on STAT3,MAPK3,AKT1,jun,MAPK1,TP53,TNF,HSP90AA1,p65,MAPK8,MAPK14,IL6,EGFR,EDN1,FOS,and other *** pathways identified by KEGG enrichment analysis include pathways in cancer,IL-17 signaling pathway,PI3K-Akt signaling pathway,HIF-1 signaling pathway,calcium signaling pathway,cAMP signaling pathway,NF-kappaB signaling pathway,AMPK signaling pathway,*** studies on Jianpi Huatan Quyu recipe suggested that this Chinese compound preparation can regulate the TNF-α,IL-6,MAPK

关键词： Jianpi Huatan Quyu recipe Traditional Chinese medicine Chronic heart failure Data mining Network pharmacology Bioinformatics Spleen Qi deficiency syndrome

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A 10-MHz SOI-Based Face Shear Square Micromechanical Resonator

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Journal of Electronic Science and Technology 2014年第1期12卷 64-70页

作者： Tan-Loc Nguyen Jing-Fu Bao jun-wen jiang Yuan Ling Xin-Yi Li the School of Electronic Engineering University of Electronic Science and Technology of China

A 10-MHz face shear （FS） square micro- mechanical resonator based on silicon-on-insulator （SO1） technology is presented in this paper. In order to examine the improvement of quality factor as well as motional resistance Rx in this structure, the center-stem anchor is employed in this study. The benefit of anchoring the square in the center, which is the nodal point, is that the energy losses through the anchor can be minimized. Hence, a quality factor value of 2.0 million and the motional resistance of 8.2 k~ can be obtained with an FS mode resonator via finite element （FE） simulation. The results show the significance of the FS mode in this design, not only in its structure but also in its square-extensional mode and Lame-mode. Additionally, an SOI-based fabrication process is proposed to support the design.

关键词： Face shear mode finite elementsimulation micromechanicai resonator quality factor,silicon-on-insulator technology.

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Influencing Factors on Center Segregation in Continuously Cast Pipeline Steel Slabs

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Journal of Iron and Steel Research International 2011年第S2期18卷 352-357页

作者： LIU Yang1, WANG Xin-hua2, WANG wen-jun1, jiang Zhong-hang1 (1.Shougang Research Institute of Technology Beijing 100043 china 2.University of Science and Technology Beijing 100083, China) Shougang Res Inst Technol Beijing Beijing 100043 Peoples R China Univ Sci & Technol Beijing Beijing 100083 Peoples R China

The factors which influence center segregation of continuously cast slabs are obtained through analyzing the database of macrostructrue. It indicates that center segregation becomes severer with the increasing content of carbon, phosphorus and sulfur; Center segregation will be reduced obviously if the content of manganese is higher than 1.5% and the ratio of Mn/S is higher than 300; High degree of superheat , high casting speed and increasing width of slabs will increase the degree of center segregation. Since center segregation below class B has little effect on the property of steel, hence, in order to low the ratio of center segregation of class B-1.0 down to 10%, several control strategies are presented as follows: the contents of carbon, phosphorus and sulfur must be focalized in lower range of steel grade demanded, but manganese upper operating range control. The referenced contents of the elements in molten steel are required like this: [C]1.5%,[Mn]/[S]>300; The degree of superheat should be lower than 24℃ and the casting speed should be defined to 1.0-1.1 m·min-1. At the same time, proper secondary cooling system of water distribution should be developed and the precision of continuous caster should be also improved.

关键词： continuous casting slab, center segregation, microalloy steel

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Multi-model ensemble learning for battery state-of-health estimation:Recent advances and perspectives

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Journal of Energy Chemistry 2025年第1期100卷 739-759页

作者： Chuanping Lin jun Xu Delong jiang Jiayang Hou Ying Liang Zhongyue Zou Xuesong Mei State Key Laboratory for Manufacturing Systems Engineering Xi'an Jiaotong University Shaanxi Key Laboratory of Intelligent Robots School of Mechanical Engineering Xi'an Jiaotong University Department of Electrical Engineering and Automation Luoyang Institute of Science and Technology School of Mechanical Engineering Hangzhou Dianzi University

The burgeoning market for lithium-ion batteries has stimulated a growing need for more reliable battery performance monitoring. Accurate state-of-health(SOH) estimation is critical for ensuring battery operational performance. Despite numerous data-driven methods reported in existing research for battery SOH estimation, these methods often exhibit inconsistent performance across different application scenarios. To address this issue and overcome the performance limitations of individual data-driven models,integrating multiple models for SOH estimation has received considerable attention. Ensemble learning(EL) typically leverages the strengths of multiple base models to achieve more robust and accurate outputs. However, the lack of a clear review of current research hinders the further development of ensemble methods in SOH estimation. Therefore, this paper comprehensively reviews multi-model ensemble learning methods for battery SOH estimation. First, existing ensemble methods are systematically categorized into 6 classes based on their combination strategies. Different realizations and underlying connections are meticulously analyzed for each category of EL methods, highlighting distinctions, innovations, and typical applications. Subsequently, these ensemble methods are comprehensively compared in terms of base models, combination strategies, and publication trends. Evaluations across 6 dimensions underscore the outstanding performance of stacking-based ensemble methods. Following this, these ensemble methods are further inspected from the perspectives of weighted ensemble and diversity, aiming to inspire potential approaches for enhancing ensemble performance. Moreover, addressing challenges such as base model selection, measuring model robustness and uncertainty, and interpretability of ensemble models in practical applications is emphasized. Finally, future research prospects are outlined, specifically noting that deep learning ensemble is poised to advance ens

关键词： Contrastive Learning

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腹部常用穴穴区微循环血流灌注量的差异及不同温度艾灸的影响

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南京中医药大学学报 2017年第4期33卷 339-343页

作者：蒋颖戴文君姜劲峰南京中医药大学第二临床医学院江苏南京210023 无锡市中医院针灸科江苏无锡214071

目的观察正常生理状态下腹部常用穴穴区微循环的规律特点,比较不同温度艾灸对其微循环的影响差异。方法纳入52例正常青年志愿者(男18,女34),采用激光多普勒血流仪依次测量其腹部的神阙、肓俞、天枢、大横、水分、气海、关元、中脘穴穴... 详细信息

目的观察正常生理状态下腹部常用穴穴区微循环的规律特点,比较不同温度艾灸对其微循环的影响差异。方法纳入52例正常青年志愿者(男18,女34),采用激光多普勒血流仪依次测量其腹部的神阙、肓俞、天枢、大横、水分、气海、关元、中脘穴穴区皮肤微循环值;随后从中选取神阙、天枢穴进行不同温度(40~43℃和>43℃,<44℃)艾灸干预,连续灸7次,每次2种温度各2min,观察不同温度艾灸对该两穴穴区皮肤微循环的影响。结果 (1)正常生理状态下,神阙穴穴区微循环值明显高于其他所测穴位穴区的微循环值(P<0.01);肓俞穴微循环值高于天枢穴(P<0.05)、大横穴(P<0.01);天枢穴微循环值高于大横穴(P<0.01)。(2)艾灸后神阙、天枢穴微循环值均升高且神阙穴在2种温度艾灸时的微循环均值、最大值、与艾灸前的差值皆大于天枢穴(P<0.01);在艾灸刺激下,神阙穴微循环值较天枢穴先出现变化并且晚进入平台期;神阙穴微循环值对艾灸温度变化的反应比天枢穴敏感。结论腹部常用穴位中,神阙穴穴区的皮肤微循环值最高;腹部水平平脐的穴位整体表现出越接近脐,其皮肤微循环值越高的趋势。同等温灸条件下神阙穴穴区皮肤微循环值的升高速度、幅度和持续升高时间都优于天枢穴。初步明确神阙穴在腹部常用穴位中具有微循环的特殊性与优越性,为穴位微循环结构特异性提供有效的证据支撑。

关键词：神阙穴微循环艾灸

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