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NUMERICAL SIMULATION AND PARAMETRIC ANALYSIS OF THE WALL STRAIN DISTRIBUTION OF VERTICALLY PLACED METAL HYDRIDE BASED HYDROGEN STORAGE CONTAINER 23

NUMERICAL SIMULATION AND PARAMETRIC ANALYSIS OF THE WALL STR...

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23rd World Hydrogen Energy Conference: Bridging Continents by H2, WHEC 2022

作者： cao, Shuaijie Yin, xuwen Yang, Fusheng Jiang, Lijun Wu, Yuanfang Wu, Zhen Zhang, Zaoxiao Xi'an Jiaotong University School of Chemical Engineering and Technology Shaanxi Xi'an China Xinjiang University School of Mechanical Engineering Xinjiang Uygur Autonomous Regions Urumqi China Co. LTD Beijing China

ISBN: (纸本)9786250008430

Pulverization, settling and agglomeration, and the consequent densification may occur for metal hydride particles during the charge-discharge cycles, which will affect the wall strain of their container for hydrogen storage. In order to study the effects of different factors on the wall strain of metal hydride hydrogen storage vessel, a reaction-thermal-mechanical coupling model for LaNi5 alloy was modified with regard to some relevant parameters, by which sensitivity analysis was conducted. Finally, the strain distribution along the height of reactor filling Mg2Ni was predicted by the model and compared with experimental results reported in literature. © 2022 Proceedings of WHEC 2022 - 23rd World Hydrogen Energy Conference: Bridging Continents by H2. All rights reserved.

关键词： Hydrogen storage

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Characterization of the growth-related transcriptome in the Liver and Brain of mandarin fish (Siniperca chuatsi) through RNA-Seq analysis

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JOURNAL OF APPLIED ANIMAL RESEARCH 2024年第1期52卷

作者： Ding, Weidong cao, Liping cao, Zheming Bing, xuwen Chinese Acad Fishery Sci Freshwater Fisheries Res Ctr Key Lab Freshwater Fisheries & Germplasm Resources Minist Agr Wuxi 214081 Peoples R China

The brain and liver of mandarin fish (Siniperca chuatsi) produce essential hormones for their growth and development. However, the mechanisms underlying the interplay of these hormones remain unclear. This study aimed to assess the slow - and fast-growing traits, including body weight and length of mandarin fish reared in a single pond. To compare the differentially expressed genes (DEGs) in slow - and fast-growing fishes, we performed RNA sequencing analysis. After assembling the clean reads, 192,280 transcripts and 100,416 unigenes were obtained. 344 and 845 DEGs in the brain and liver in the fast-and slow-growing group were annotated respectively. These DEGs were associated with signaling pathways involved in growth and development, such as AGE-RAGE, Transforming growth factor-beta/Smad, Mitogen-activated protein kinase, Wingless/Integrated, and Insulin-like growth factor (IGF) 1. Furthermore, our fasting experiment revealed a concurrent decrease in body weight and the expression levels of genes related to the growth hormone (GH)/IGF system, alongside an increase in the insulin-like growth factor binding protein gene IGFBP3 expression. These findings suggest the GH/IGF system regulates body weight during fasting periods. The vast amount of transcriptome data generated in this study substantially expands the existing gene and genome resources for the growth traits of mandarin fish.

关键词： Mandarin fish transcriptome growth DEG fasting

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Seismic performance of a new type of precast shear walls with non-connected vertical distributed reinforcement

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JOURNAL OF BUILDING ENGINEERING 2021年 44卷

作者： Liao, Xiandong Zhang, Shiqian cao, Zhiwei Xiao, xuwen China Construct Eighth Engn Div Co Ltd Shanghai 200112 Peoples R China Tongji Univ Dept Struct Engn Shanghai 200092 Peoples R China China State Construct Engn Corp Beijing 100029 Peoples R China

To eliminate the shortcomings in the grouting sleeve and other connection forms in precast concrete shear wall structure induced by the poor grouting, difficult quality assurance, low construction efficiency, and high cost, a new type of monolithic assembled concrete shear wall structure with non-connected vertical distributed reinforcement was proposed in this paper. The new shear wall structure is composed of middle precast wall panels and cast-in-place boundary members. The vertical distributed reinforcement in the middle precast wall panels is not connected between the upper and lower floors. This technique was based on the normal section bearing capacity of equal strength and inclined section bearing capacity of equal strength compared with the cast-in-place shear wall structure. Three full-scale models of precast shear walls and one cast-in-place contrast specimen were tested for their seismic performance under pseudo-static loading. All precast specimens are cast based on the manufacture specification of the factory. By analysis of test results, including the failure modes, load-lateral drift hysteresis curves, bearing capacity, hysteretic characteristics, deformation components, ductility, rigidity degeneration, energy dissipation, and strain distribution, all the specimens were obtained and compared. Comparisons between test results indicate that the proposed shear walls have a similar bearing capacity as that of the cast-in-place shear wall and improved energy dissipation and ductility. Moreover, the specimen with inclined reinforcement performs better in drift capacity compared to companion specimens. The contribution of flexural deformation to the total displacement of each specimen is the largest, follow by the contribution of shear deformation, and the contribution of slip is the smallest. The strain of non-connected vertical distributed reinforcement of the precast panel did not yield during the loading process. The cross-section of the precast shear

关键词： Precast concrete shear wall Non-connected vertical distributed reinforcement Equal strength Pseudo-static Deformation Strain distribution

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Analysis of the relationship between chinese e-commerce and e-government

Advances in Intelligent and Soft Computing

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Advances in Intelligent and Soft Computing 2011年 105卷 733-736页

作者： Sui, Liping cao, Yonghua Zhang, Lianfeng Guo, xuwen Economics and Management Department Henan Institute of Science and Technology University Xinxiang Henan China Mechanical and Electrical Engineering Henan Institute of Science and Technology University Xinxiang Henan China

ISBN: (纸本)9783642237553

E-commerce and e-government is a hot topic today, in practice they are often managed separately, but in fact the two are inextricably linked there. In this paper, similarities and differences between e-government and e-commerce start point and the interaction, the more comprehensive treatment of the relationship between e-government and e-commerce. © 2011 Springer-Verlag Berlin Heidelberg.

关键词： Government data processing

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Molecular characterization and expression profile of the estrogen receptor α gene during different reproductive phases in Monopterus albus

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SCIENTIFIC REPORTS 2016年第1期6卷 27924-27924页

作者： Ding, Weidong cao, Liping cao, Zheming Bing, xuwen Zhao, Fazhen Nanjing Agr Univ Wuxi Fisheries Coll 9 East Shanshui Rd Wuxi 214081 Peoples R China Chinese Acad Fishery Sci Freshwater Fisheries Res Ctr Minist Agr Key Lab Freshwater Fisheries & Germplasm Resource Wuxi 214081 Peoples R China Chinese Acad Fishery Sci Yellow Sea Fisheries Res Inst Qingdao 266071 Peoples R China

To understand the molecular mechanism of estrogen and to evaluate the role of the estrogen receptor in mediating estrogen action, the full-length cDNA of estrogen receptor alpha (ER alpha) was cloned from Monopterus albus, and its expression pattern and distribution were investigated. The ERa cDNA of M. albus includes an open reading frame of 1863 bp, a 140-bp 5'-untranslated region and a 797-bp 3'-untranslated region. Amino acid sequence homology analysis showed that the Monopterus albus ER alpha has a moderate degree of similarity with Sebastes schlegelii, Zoarces viviparus and Haplochromis burtoni (81.1%, 80.7% and 80.4%, respectively). Quantitative PCR results showed that the highest level of ER alpha expression was in the liver;the next highest level of expression was observed in the gonads, where it was expressed at high levels particularly in the ovary in developmental stages IV and V and in the testis in developmental stage II/III. Immunohistochemistry analysis showed that ER alpha was present as slender particles distributed mainly in the membranes of spermatocytes and oocytes in the testis and ovary, whereas no positive signal was observed in the cytoplasm of sperm cells. This report describes the first molecular characterization of full-length ER alpha and its tissue-specific distribution in M. albus.

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Synthesis and controlled release kinetics of pH-sensitive hollow polyaniline microspheres encapsuled with the corrosion inhibitor

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JOURNAL OF MOLECULAR LIQUIDS 2021年 342卷 117497-117497页

作者： cao, Yang Yuan, xuwen Wang, Xuan Li, Wentao Yang, Huaiyu Chinese Acad Sci Inst Met Res Shenyang 110016 Peoples R China Univ Sci & Technol China Sch Mat Sci & Engn Hefei 230026 Peoples R China

It has long been a question of great interest in a wide range of fields including smart organic coatings to develop environmentally sensitive drug-loaded micro-storage system and to study its controlled release law. Herein, we first report a novel one-step approach for the synthesis of inhibitor-encapsuled polyaniline hollow microspheres (MBT@PANI) with pH sensitive response and controlled release function based on supramolecular in situ interfacial polymerization technique. An accurate and reliable HPLC method for quantitative determination of the corrosion inhibitor MBT has been established. The pH sensitive controlled release behavior and kinetic mechanism of MBT in 3.5% NaCl solutions were systematically investigated. It was found that the average particle size of the synthesized MBT@PANI microspheres was 1.7 mu m and the encapsulation efficiency and the loading of corrosion inhibitor MBT was above 99% and 23.5% (wt.), respectively. The MBT@PANI microspheres exhibited an outstanding feature of long-term sustainable controlled release in 3.5% NaCl solutions with different pH values, and as the pH of the release medium increased, the release rate and cumulative release amount of MBT gradually increased. With the prolonging of the release time, the release process of the inhibitor MBT had three stages and sequentially obeyed the Elovich, first-order and zero-order kinetics. The possible mechanism of pH sensitive controlled release was discussed. (C) 2021 Elsevier B.V. All rights reserved.

关键词： Polyaniline Microcapsules pH-sensitive Controlled release Kinetics

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Controlled Anodic Decomposition Pathway of Supramolecular Lithium Borate for Rationally Tuned Interphase Chemistry

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Angewandte Chemie 2025年

作者： Haiyu Zhou Wenhui Hou Da Zhu Pan Zhou xuwen Peng Zhi Liu Shuaishuai Yan Yang Lu Yu Ou Fengxiang Liu Yingchun Xia Hao Liu Qingbin cao Xuan Song Decai Guo Hong Xu Kai Liu The State Key Laboratory of Chemical Engineering Department of Chemical Engineering Tsinghua University Beijing 100084 P.R. China Institute of Nuclear and New Energy Technology Tsinghua University Beijing 100084 P.R. China Dalian Research Institute of Petroleum and Petrochemicals SINOPEC No.96 Nankai Road Tieshan Street Lvshunkou District Dalian Liaoning 116045 P.R. China

The rational tailoring and molecular-level engineering of stable cathode-electrolyte interphases (CEIs) is paramount to advancing the performance of next-generation high-energy, layered nickel-rich oxide-based lithium metal batteries. However, developing well-tailored electrolyte additives with rationally controlled interfacial chemistry remains highly challenging. Here, two lithium borates: lithium (2-methoxy-15-crown-5)trifluoroborate (C-LiMCFB) and lithium (15-methoxy-2,5,8,11,14-pentaoxahexadecan)trifluoroborate (L-LiMCFB), incorporating cyclic 15-crown-5 (15C5) and linear pentaethylene glycol monomethyl ether (PEGME) as respective host groups tethered to the boron center are designed and synthesized. In C-LiMCFB, the supramolecular polydentate chelation/de-chelation of the 15C5 with Li + can sequentially deactivate/activate the anodic decomposition of the C─O bonds, therefore leading to the controlled cleavage pathway of B─O and C─O bonds. The controlled interfacial chemistry leads to the formation of a uniform CEI layer, rich in lithium boron–oxygen clusters interwoven with LiF, on the NCM811 surface. This novel CEI configuration demonstrates an exceptional balance of mechanical robustness, adhesiveness, and toughness, providing highly desirable protection for the NCM811 cathode. The discovery of these novel supramolecular boron-based lithium salts not only unlocks supramolecular chemistry for rational electrolyte tuning but also provides a deeper understanding of the CEI formation mechanism in high-energy lithium metal batteries.

关键词： Battery electrolytes Energy storage Lithium metal batteries Supramolecular chemistry

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Impact of Oligo(Ethylene Glycol) Side Chains on the Thermoelectric Properties of Naphthalenediimide-Dialkoxybithiazole Polymers

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ACS MATERIALS LETTERS 2024年第4期6卷 1207-1215页

作者： Yang, xuwen Ye, Gang Tran, Karolina Liu, Yuru cao, Jiamin Dong, Jingjin Portale, Giuseppe Liu, Jian Zhang, Ping Loi, Maria Antonietta Chiechi, Ryan C. Koster, L. Jan Anton Univ Groningen Zernike Inst Adv Mat Nijenborgh 4 NL-9747 AG Groningen Netherlands Univ Groningen Stratingh Inst Chem Nijenborgh 4 NL-9747 AG Groningen Netherlands Hunan Univ Sci & Technol Sch Chem & Chem Engn Key Lab Theoret Organ Chem & Funct Mol Minist Educ Xiangtan 411201 Peoples R China Nanjing Tech Univ Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM Key Lab Flexible Elect KLOFE Nanjing 211816 Jiangsu Peoples R China Nanjing Tech Univ Inst Adv Mat IAM Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM Nanjing 211816 Jiangsu Peoples R China Chinese Acad Sci Changchun Inst Appl Chem State Key Lab Polymer Phys & Chem Changchun 130022 Jilin Peoples R China Jiangxi Univ Sci & Technol Sch Elect Engn & Automat Ganzhou 341000 Jiangxi Peoples R China Hubei Univ Sch Mat Sci & Engn Key Lab Green Preparat & Applicat Funct Mat Hubei Key Lab Polymer Mat Wuhan 430062 Peoples R China North Carolina State Univ Dept Chem Raleigh NC 27695 USA

Organic thermoelectric materials have garnered significant interest as promising candidates for energy harvesting applications. In recent years, ethylene-glycol side-chain engineering in organic semiconductors has gradually become an efficient approach to boost the performance of organic thermoelectrics. Although this strategy is widely utilized, the impact of their volume and branching structure remains unknown. This contribution describes a trade-off phenomenon between the oligo(ethylene glycol) (OEG) side chains and thermoelectric properties based on the n-type doped low-bandgap conjugated polymers, achieved through the modification of the volume and structure of side chains. Three conjugated polymers comprising a naphthalenediimide-dialkoxybithiazole backbone and different linear length or branched OEG side chains exhibit good host/dopant miscibility after doping. We find that, in the linear OEG side-chain-based polymers, the increased volume of side chains slightly influences the planarity of backbones, thereby leading to similar and satisfactory thermoelectric performances. The high fraction of side chains does not consistently yield enhanced performance, as the branched OEG side-chain introduces steric hindrance. Consequently, the accordingly conjugated backbones become less planar and rigid, resulting in critical molecular packing changes and low charge carrier mobility and doping efficiency and thus low thermoelectric performance. Our work provides a unique insight into the fundamental understanding of the relationship between molecular packing and thermoelectric properties and guides the future rational design of efficient n-type organic semiconductors.

关键词： Carrier dynamics Conjugated polymers Doping Polymers Thin films

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质量基础设施"一站式"服务平台现状、关键技术及发展趋势研究

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中国科技纵横 2025年第2期 128-130页

作者：陈旭文魏春梅曹伟马琳朱明浙江省质量科学研究院浙江杭州 310018

质量基础设施(NQI)作为国家质量发展的基石,对于提升产品和服务质量、促进产业升级和经济发展具有重要意义.随着全球化和信息化的加速发展,企业和消费者对质量的要求越来越高,传统的质量服务模式已难以满足多样化需求.基于此,本文通过... 详细信息

质量基础设施(NQI)作为国家质量发展的基石,对于提升产品和服务质量、促进产业升级和经济发展具有重要意义.随着全球化和信息化的加速发展,企业和消费者对质量的要求越来越高,传统的质量服务模式已难以满足多样化需求.基于此,本文通过研究国内外质量基础设施"一站式"服务的现状,分析国内"一站式"服务平台发展存在的主要问题,揭示了平台关键技术及发展趋势,以期为相关工作提供有益参考和借鉴.

关键词：质量基础设施"一站式"服务现状关键技术发展趋势

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EIS法研究3种配套涂层体系的腐蚀电化学行为

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化工学报 2008年第3期59卷 659-664页

作者：刘旭文熊金平曹京宜左禹北京化工大学材料科学与工程学院北京100029 海军涂料分析检测中心北京102442

采用电化学阻抗谱(EIS)研究了由水性无机富锌底漆、环氧中间漆和氯化橡胶面漆3种涂料配套而成的3种不同涂层体系在3.5%NaCl溶液中的电化学腐蚀行为,考察了氯化橡胶面漆、水性无机富锌底漆/氯化橡胶面漆、水性无机富锌底漆/环氧中间漆/... 详细信息

采用电化学阻抗谱(EIS)研究了由水性无机富锌底漆、环氧中间漆和氯化橡胶面漆3种涂料配套而成的3种不同涂层体系在3.5%NaCl溶液中的电化学腐蚀行为,考察了氯化橡胶面漆、水性无机富锌底漆/氯化橡胶面漆、水性无机富锌底漆/环氧中间漆/氯化橡胶面漆这3种涂层体系的阻抗谱在浸泡过程中的演化并据此比较了3种涂层体系的防护性能。结果表明,两涂层体系的防护性能比单涂层的还要差,三复合涂层体系的防护性能最好。根据涂层腐蚀电化学阻抗谱特征推测,中间漆在三复合涂层体系中起到了使底漆和面漆结合更加紧密的桥梁作用。

关键词：涂层电化学阻抗谱浸泡

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