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Effect of preload forces on multidimensional signal dynamic behaviours for battery early safety warning

Journal of Energy Chemistry 2024年第5期92卷 484-498页

作者： Kuijie li jiahua li Xinlei Gao Yao Lu Depeng Wang Weixin Zhang Weixiong Wu Xuebing Han Yuan-cheng Cao Languang Lu Jinyu Wen Shijie Cheng Minggao Ouyang School of Electrical and Electronic Engineering Huazhong University of Science and TechnologyWuhan 430074HubeiChina State Key Laboratory of Automotive Safety and Energy Tsinghua UniversityBeijing 100084China Energy and Electricity Research Center Jinan UniversityZhuhai 519070GuangdongChina Department of Mechanical Engineering Imperial College LondonLondon.SW7:2AZ.UK

Providing early safety warning for batteries in real-world applications is challenging.In this study,comprehensive thermal abuse experiments are conducted to clarify the multidimensional signal evolution of battery failure under various preload forces.The time-sequence relationship among expansion force,voltage,and temperature during thermal abuse under five categorised stages is revealed.Three characteristic peaks are identified for the expansion force,which correspond to venting,internal short-circuiting,and thermal runaway.In particular,an abnormal expansion force signal can be detected at temperatures as low as 42.4°C,followed by battery thermal runaway in approximately 6.5 min.Moreover,reducing the preload force can improve the effectiveness of the early-warning method via the expansion force.Specifically,reducing the preload force from 6000 to 1000 N prolongs the warning time(i.e.,227 to 398 s)before thermal runaway is triggered.Based on the results,a notable expansion force early-warning method is proposed that can successfully enable early safety warning approximately 375 s ahead of battery thermal runaway and effectively prevent failure propagation with module validation.This study provides a practical reference for the development of timely and accurate early-warning strategies as well as guidance for the design of safer battery systems.

关键词： lithium-ion battery Thermal runaway Preload force Expansionforce Early warning Multidimensional signal

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A thermodynamic view on the in-situ carbon dioxide reduction by biomass-derived hydrogen during calcium carbonate decomposition

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Chinese Journal of Chemical Engineering 2024年第4期68卷 231-240页

作者： Peng Jiang Hao Zhang Guanhan Zhao lin li Tuo Ji liwen Mu Xiaohua Lu jiahua Zhu State Key Laboratory of Materials-oriented Chemical Engineering College of Chemical EngineeringNanjing Tech UniversityNanjing 211816China

In the carbonate industry,deep decarbonization strategies are necessary to effectively remediate CO_(2).These strategies mainly include both sustainable energy supplies and the conversion of CO_(2)in downstream processes.This study developed a coupled process of biomass chemical looping H2 production and reductive calcination of CaCO_(3).Firstly,a mass and energy balance of the coupled process was established in Aspen Plus.Following this,process optimization and energy integration were implemented to provide optimized operation conditions.Lastly,a life cycle assessment was carried out to assess the carbon footprint of the coupled process.Results reveal that the decomposition temperature of CaCO_(3)in an H_(2)atmosphere can be reduced to 780℃(generally around 900℃),and the conversion of CO_(2)from CaCO_(3)decomposition reached 81.33%with an H2:CO ratio of 2.49 in gaseous products.By optimizing systemic energy through heat integration,an energy efficiency of 86.30%was achieved.Additionally,the carbon footprint analysis revealed that the process with energy integration had a low global warming potential(GWP)of-2.624 kg·kg^(-1)(CO_(2)/CaO).Conclusively,this work performed a systematic analysis of introducing biomass-derived H_(2)into CaCO_(3)calcination and demonstrated the positive role of reductive calcination using green H_(2)in mitigating CO_(2)emissions within the carbonate industry.

关键词： Biomass CaCO_(3)reductive calcination Chemical looping Hydrogen production Carbon footprint Thermodynamics process

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Improved simulation of winter wheat yield in North China Plain by using PRYM-Wheat integrated dry matter distribution coefficient

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Journal of Integrative Agriculture 2024年第4期23卷 1381-1392页

作者： Xuan li Shaowen Wang Yifan Chen Danwen Zhang Shanshan Yang Jingwen Wang jiahua Zhang Yun Bai Sha Zhang Research Center for Remote Sensing and Digital Earth College of Computer Science and TechnologyQingdao UniversityQingdao266071China Center for Geospatial Information Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055China School of Geographical Sciences Hebei Normal UniversityShijiazhuang 050024China

The accurate simulation of regional-scale winter wheat yield is important for national food security and the balance of grain supply and demand in China.Presently,most remote sensing process models use the“biomass×harvest index(HI)”method to simulate regional-scale winter wheat yield.However,spatiotemporal differences in HI contribute to inaccuracies in yield simulation at the regional scale.Time-series dry matter partition coefficients(Fr)can dynamically reflect the dry matter partition of winter wheat.In this study,Fr equations were fitted for each organ of winter wheat using site-scale data.These equations were then coupled into a process-based and remote sensingdriven crop yield model for wheat(PRYM-Wheat)to improve the regional simulation of winter wheat yield over the North China Plain(NCP).The improved PRYM-Wheat model integrated with the fitted Fr equations(PRYM-Wheat-Fr)was validated using data obtained from provincial yearbooks.A 3-year(2000-2002)averaged validation showed that PRYM-Wheat-Fr had a higher coefficient of determination(R^(2)=0.55)and lower root mean square error(RMSE=0.94 t ha^(-1))than PRYM-Wheat with a stable HI(abbreviated as PRYM-Wheat-HI),which had R^(2) and RMSE values of 0.30 and 1.62 t ha^(-1),respectively.The PRYM-Wheat-Fr model also performed better than PRYM-Wheat-HI for simulating yield in verification years(2013-2015).In conclusion,the PRYM-Wheat-Fr model exhibited a better accuracy than the original PRYM-Wheat model,making it a useful tool for the simulation of regional winter wheat yield.

关键词： dry matter partition remote sensing model winter wheat yield North China Plain

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Deletion of heterogeneous nuclear ribonucleoprotein K in satellite cells leads to inhibited skeletal muscle regeneration in mice

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Genes & Diseases 2024年第4期11卷 102-105页

作者： Yongjie Xu Haixia Xu Xiaofang Cheng Nuo Chen Yaling Wang Yueru Huang jiahua Guo Yueqian Zheng Mengjia Zhang Chuunyu Du Cunzhen Zhao Cencen li Pengpeng Zhang College of life Science Xinyang Normal UniversityXinyangHenan 464000China Institute for Conservation and Utilization of Agro-Bioresources in Dabie Mountain Xinyang Normal UniversityXinyangHenan 464000China

Heterogeneous nuclear ribonucleoprotein K(hnRNPK)is a predominantly nuclear RNA-binding protein that can bind to DNA or RNA through three KH domains and interact with multiple proteins by interactive region.These binding activities enable hnRNPK to link the function in a wide array of diverse cellular processes,such as chromatin remodeling,gene transcription,RNA metabolism,protein translation,DNA repair,and cell signal transduction,thereby playing crucial roles in many biological processes,including development,axonal regeneration,spermatogenesis,cell cycle,apoptosis,differentiation,and carcinogenesis.

关键词： inhibited metabolism carcinogenesis

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The Development of a Venus Flytrap Inspired Soft Robot Driven by IPMC

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Journal of Bionic Engineering 2023年第1期20卷 406-415页

作者： jiahua li Aifen Tian Yue Sun Bin Feng Hongyan Wang Xinrong Zhang School of Materials Science and Engineering Xi’an University of Science and TechnologyXi’an710054China School of Mechanical Engineering Xi’an University of Science and TechnologyXi’an710054China Shaanxi Science and Technology Holding Group Shaanxi Kekong Technology Industry Research Institute Co.LtdXi’an710000China The Key Laboratory of Road Construction Technology and Equipment MOE Chang’an UniversityXi’an710064China

In recent years,more and more creatures in nature have become the source of inspiration for people to study bionic soft robots.Many such robots appear in the public’s vision.In this paper,a Venus flytrap robot similar to the biological Venus flytrap in appearance was designed and prepared.It was mainly cast by Polydimethylsiloxane(PDMs)and driven by the flexible material of Ionic Polymer Metal Composites(IPMCs).Combining with ANSYS and related experiments,the appropriate voltage and the size of IPMC were determined.The results showed that the performance of the Venus flytrap robot was the closest to the biological Venus flytrap when the size of IPMC length,width and driving voltage reach to 3 cm,1 cm and 5.5 V,respectively.Moreover,the closing speed and angle reached 8.22°/s and 37°,respectively.Finally,the fly traps also could be opened and closed repeatedly and captured a small ball with a mass of 0.3 g firmly in its middle and tip.

关键词： Bioinspired soft robot.Venus flytrap ANSYS Ionic polymer metal composite

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Controlling the Balance of Photoluminescence and Photothermal Effect in Cyanostilbene-Based Luminescent liquid Crystals

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Chinese Journal of Chemistry 2022年第8期40卷 902-910页

作者： Xiang-Jian Cao Wei li jiahua li lin Zou Xing-Wang liu Xiang-Kui Ren Zhen-Qiang Yu School of Chemical Engineering and Technology State Key Laboratory of Chemical EngineeringTianjin UniversityTianjin 300350China College of Chemistry and Environmental Engineering Institute of Low-dimensional Materials Genome InitiativeShenzhen UniversityShenzhenGuangdong 518071China

Molecular motions of the luminescent liquid crystals(LLCs)show a significant effect on fluorescent emission and heat generation.In this article,a series of cyanostilbene-based LLCs(CSs:CS1-6,CS1-12,CS2-6 and CS2-12)are synthesized to investigate how the pho-toluminescence and photothermal effect balanced.Among these materials,the mesogens peripheried by single alkyl chains formed enantiotropic nematic(CS1-6)or smectic C(CS1-12)phase with different alkyl tail lengths.When the single aliphatic chain is re-placed by mini-dendrons,room temperature(RT)monotropic hexagonal columnar phase(CS2-12)or molecular liquid(CS2-6)is formed.The results revealed that all these materials exhibited high efficiency emission with the highest quantum yield reaching 59.0%.The photoluminescence and photothermal effect can be effectively tuned by dispersing CSs into a commercially available RT liquid crystal matrix 8CB,which output significantly improved photothermal conversion efficiency of 63.2%.Furthermore,the pho-tothermal can rapidly trigger the Smectic A-Nematic-Isotropic sequence transitions of 8CB doped with CSs.This work paves a way of adjusting the balance of photoluminescence and photothermal properties of the LLC materials.

关键词： Aggregation-induced emission liquid crystals Molecular motions Photothermal effect Phase transitions

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MALAT1 promotes platelet activity and thrombus formation through PI3k/Akt/GSK-3βsignalling pathway

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Stroke & Vascular Neurology 2023年第3期8卷 181-192,I0001-I0004页

作者： Yeying Sun Tao Wang Yan Lv jiahua li Xiaoli Jiang Jing Jiang Daolai Zhang Weihua Bian Chunxiang Zhang College of Pharmacy Binzhou Medical UniversityYantaiShandongChina College of life Sciences Yantai UniversityYantaiShandongChina Department of Cardiology Southwest Medical UniversityLuzhouSichuanChina

Background Ischaemic stroke and other cardiovascular illnesses are characterised by abnormalities in the processes of thrombosis and haemostasis,which rely on platelet activity.In platelets,a wide variety of microRNAs(long non-coding RNA,lncRNAs)is found.Due to the absence of nuclear DNA in platelets,lncRNAs may serve as critical post-transcriptional regulators of platelet activities.However,research into the roles of lncRNAs in platelets is limited.Objective The purpose of this study is to learn more about the molecular mechanism by which MALAT1 affects platelet activity and thrombus formation.Methods/results The CD34+megakaryocytes used in this research as an in vitro model for human megakaryocytes and platelets.Cell adhesion and spreading are enhanced in the absence and presence of agonists in CD34+megakaryocytes subjected to MALAT1 knockdown(KD).The adhesion and activity of platelet-like particles produced by MALAT1 KD cells are significantly enhanced at rest and after thrombin activation.Thrombus development on a collagen matrix is also greatly enhanced in the microfluidic whole-blood perfusion model:platelets lacking MALAT1 exhibit elevated accumulation,distributing area and activity.In addition,MALAT1-deficient mice bleed less and form a stable occlusive thrombus more quickly than wild-type mice.PTEN and PDK1 regulated the activity of MALAT1 in platelets to carry out its PI3k/Akt/GSK-3βsignalling pathway-related function.Conclusion The suppression of MALAT1 expression significantly increases platelet adhesion,spreading,platelet activity,and thrombus formation.lncRNAs may constitute a unique class of platelet function modulators.

关键词： MALAT1 thrombus platelet

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Sulforaphane Attenuates CD36-mediated Platelet Hyperreactivity through Modulating cAMP/PKA/NOX2 Signaling in Hyperlipidemic Conditions

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Food Science and Human Wellness 2024年

作者： Weiqi li Chunting Wu Xinyu Zhou Xinhui Huang Chunmei Zhang Yongjie Ma Jinqiu Hu Xiaoyan Bi Junyu Ma Mengyao li Dong Lu liang Hu jiahua Fan Fuli Ya Department of Nutrition School of Public Health Dali University Department of Laboratory Teaching Center School of Public Health Dali University Department of Health Management Gem Flower Xi'an Changqing Staff Hospital Shanghai Frontiers Science Center of TCM Chemical Biology Institute of Interdisciplinary Integrative Medicine Research Shanghai University of Traditional Chinese Medicine School of Integrative Medicine Shanghai University of Traditional Chinese Medicine School of Public Health Sun Yat-sen University Institute of Translational Medicine for Metabolic Diseases Dali University

Hyperlipidemia is a risk factor for clinically significant thrombotic events in cardiovascular diseases. Platelet reactivity in hyperlipidemic conditions is enhanced when platelet scavenger receptor CD36 recognizes oxidized lipids in oxidized low-density lipoprotein (ox-LDL) particles， a process that induces atherothrombosis. Sulforaphane (SFN) is a dietary isothiocyanate enriched in cruciferous vegetables and exerts multiple biological activities. The current study sought to investigate the efficacy of SFN on platelet hyperreactivity under hyperlipidemic conditions in vitro and in vivo. Using a series of platelet functional assays in human platelets in vitro， we demonstrated that SFN attenuated ox-LDL-increased platelet aggregation and activation (surface CD62P expression). Mechanistically， studies using pharmacological inhibitors clarified that these inhibitory effects of SFN were mainly modulated by down-regulating CD36-mediated activation of Src kinases， leading to enhanced activation of cAMP/PKA signaling， and resultant inhibition of NAD phosphate oxidase 2 (NOX2)-dependent generation of reactive oxygen species (ROS). Moreover， 12-week supplementation of SFN-enriched broccoli sprout extract (BSE， 0.06% diet) in hyperlipidemic C57BL/6J mice also decreased platelet hyperreactivity. Studies using pharmacological inhibitors of CD36， PKA and NOX2 showed that the efficacy of BSE supplementation was mainly through modulating CD36-mediated the cAMP/PKA/NOX2 signaling. Thus， through modulating the cAMP/PKA/NOX2 pathway and attenuating CD36-mediated platelet hyperreactivity， SFN may play important protective roles in atherothrombosis under hyperlipidemic conditions.

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多项正则化约束的伪标签传播优化脑电信号聚类

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计算机研究与发展 2024年第1期61卷 156-171页

作者：代成龙李光辉李栋申佳华皮德常江南大学人工智能与计算机学院江苏无锡214122 南京航空航天大学计算机科学与技术学院南京211106

作为一种非侵入式分析载体,脑电信号目前被广泛应用于脑-机接口、医疗辅助诊断及康复领域,但这些应用通常依赖需要完整标签的有监督分析技术,如分类.随着无标签脑电信号的与日俱增,现有的有监督方法不能有效解决无标签脑电信号分析问题... 详细信息

作为一种非侵入式分析载体,脑电信号目前被广泛应用于脑-机接口、医疗辅助诊断及康复领域,但这些应用通常依赖需要完整标签的有监督分析技术,如分类.随着无标签脑电信号的与日俱增,现有的有监督方法不能有效解决无标签脑电信号分析问题,也在一定程度上限制了无标签脑电信号这类新型数据的应用拓展.为了解决无标签脑电信号的无监督分析问题,提出了一种基于多项正则化约束的伪标签传播优化聚类模型.该模型通过同时优化学习伪标签传播矩阵、脑电信号相似度邻接矩阵、标签分类器的方式实现聚类.将提出的脑电信号聚类模型转化为一个多目标优化问题,并提出了一种基于梯度下降策略的聚类算法EEGapc(electroencephalogram clustering with pseudo label propagation).该算法不仅充分考虑了脑电信号之间的相关性及脑电信号间的信息传递,还能快速收敛到局部最优.在14个真实脑电信号数据集上的实验结果表明,提出的EEGapc脑电信号聚类算法比现有的8种聚类算法性能更好,且在平均NMI(normalized mutual information),ARI(adjusted rand index),F-score,kappa这4个指标上,EEGapc与现有的8种聚类算法相比,分别至少提升了86.88%,58.01%,6.29%,61.17%.

关键词：脑电信号聚类伪标签传播邻接矩阵优化伪标签分类器多目标优化

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H3K9me3修饰的两面性:克隆胚胎的“路障”与“路标”

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中国科学：生命科学 2024年第3期54卷 548-550页

作者：卫佳华朱冰李颖峰中国科学院生物物理研究所生物大分子国家重点实验室北京100101 中国科学院大学生命科学学院北京100049

体细胞核移植(somatic cell nuclear transfer,SCNT)技术可以通过把已分化的体细胞核移入去核卵母细胞的方式,将供体细胞核重置为类似于胚胎的状态.然而,尽管SCNT已在动物保护、育种以及疾病研究和治疗等方面展现出广泛的应用前景,但是... 详细信息

体细胞核移植(somatic cell nuclear transfer,SCNT)技术可以通过把已分化的体细胞核移入去核卵母细胞的方式,将供体细胞核重置为类似于胚胎的状态.然而,尽管SCNT已在动物保护、育种以及疾病研究和治疗等方面展现出广泛的应用前景,但是严重的胚胎发育缺陷和极低的出生率却阻碍了SCNT的进一步发展[1~3].

关键词：体细胞核胚胎发育克隆胚胎两面性出生率

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