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Unlocking the potential of unlabeled data:Self-supervised machine learning for battery aging diagnosis with real-world field data

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Journal of Energy Chemistry 2024年第12期99卷 681-691页

作者： Qiao wang Min ye Sehriban Celik Zhongwei Deng Bin Li Dirk Uwe Sauer Weihan Li National Engineering Research Center for Highway Maintenance Equipment Chang'an UniversityXi'an 710064ShanxiChina Key Laboratory of Road Construction Technology and Equipment of MOE Chang'an UniversityXi'an 710064ShanxiChina School of Automobile Chang'an UniversityXi'an 710064ShanxiChina Chair for Electrochemical Energy Conversion and Storage Systems Institute for Power Electronics and Electrical Drives(ISEA)RWTH Aachen University52074 AachenGermany Center for Ageing Reliability and Lifetime Prediction of Electrochemical and Power Electronics Systems(CARL)RWTH Aachen University52074 AachenGermany Jülich Aachen Research Alliance JARA-Energy52074 AachenGermany Helholtz Institute Münster(HI MS) Forschungszentrum Jülich52425 JülichGermany School of Mechanical and Electrical Engineering University of Electronic Science and Technology of ChinaChengdu 611731SichuanChina

Accurate aging diagnosis is crucial for the health and safety management of lithium-ion batteries in electric *** significant advancements achieved by data-driven methods,diagnosis accuracy remains constrained by the high costs of check-up tests and the scarcity of labeled *** paper presents a framework utilizing self-supervised machine learning to harness the potential of unlabeled data for diagnosing battery aging in electric vehicles during field *** validate our method using battery degradation datasets collected over more than two years from twenty real-world electric *** analysis comprehensively addresses cell inconsistencies,physical interpretations,and charging uncertainties in real-world *** is achieved through self-supervised feature extraction using random short charging sequences in the main peak of incremental capacity *** leveraging inexpensive unlabeled data in a self-supervised approach,our method demonstrates improvements in average root mean square errors of 74.54%and 60.50%in the best and worst cases,respectively,compared to the supervised *** work underscores the potential of employing low-cost unlabeled data with self-supervised machine learning for effective battery health and safety management in realworld scenarios.

关键词： Lithium-ion battery Aging diagnosis Self-supervised Machine learning Unlabeled data

艾灸联合骨愈灵片对老年骨质疏松性股骨粗隆间骨折患者PFNA术后的影响

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新中医 2025年第3期57卷 144-149页

作者：宣超王恒林伟伟王家辉林立国王晨勋叶晶台州骨伤医院浙江温岭317500

目的:观察艾灸联合骨愈灵片对老年骨质疏松性股骨粗隆间骨折(IFF)患者股骨近端防旋髓内钉(PFNA)术后的影响。方法:选取2021年8月—2023年12月台州骨伤医院进行PFNA手术的82例老年骨质疏松性IFF患者,按随机数字表法分为中药组及艾灸组各4... 详细信息

目的:观察艾灸联合骨愈灵片对老年骨质疏松性股骨粗隆间骨折(IFF)患者股骨近端防旋髓内钉(PFNA)术后的影响。方法:选取2021年8月—2023年12月台州骨伤医院进行PFNA手术的82例老年骨质疏松性IFF患者,按随机数字表法分为中药组及艾灸组各41例。中药组术后采用骨愈灵片口服治疗,艾灸组在中药组基础上加用补肾活血方艾灸。比较2组临床疗效及脆性骨折发生率,比较2组治疗前后疼痛视觉模拟评分法(VAS)评分、骨转换标志物[骨特异性碱性磷酸酶(BALP)、β-胶原降解产物(β-CTX)、抗酒石酸酸性磷酸酶5b (TRACP-5b)]、骨密度(BMD)、炎症因子[白细胞介素-6 (IL-6)、白细胞介素-10 (IL-10)、肿瘤坏死因子-α (TNF-α)]、血管内皮因子指标值的变化。结果:艾灸组临床疗效总有效率为92.68%(38/41),中药组临床疗效总有效率为75.61%(31/41),2组比较,差异有统计学意义(P0.05)。治疗后,2组IL-6、IL-10、TNF-α水平均较治疗前下降(P<0.05),艾灸组上述3项水平均低于中药组(P<0.05)。治疗后,2组eNOS、NO水平均较治疗前升高(P<0.05),艾灸组eNOS、NO水平均高于中药组(P<0.05)。治疗后随访8个月,中药组脆性骨折发生率为24.39%(10/41),艾灸组脆性骨折发生率为4.88%(2/41),2组脆性骨折发生率比较,差异有统计学意义(P<0.05)。结论:艾灸联合骨愈灵片口服治疗老年骨质疏松性IFF患者PFNA术后效果较好,能调节骨代谢水平,抑制炎症因子表达,提高血管内皮因子水平,减少脆性骨折发生率,安全性高。

关键词：股骨粗隆间骨折老年股骨近端防旋髓内钉艾灸骨愈灵片

Simultaneous integrated dose reduction intensity-modulated radiotherapy effectively reduces cardiac toxicity in limited-stage small cell lung cancer

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Cancer Biology & Medicine 2023年第6期20卷 452-464页

作者： Jing Luo Jiawei Song Li Xiao Jiajia Zhang Yipeng cao Jun wang Ping wang Lujun Zhao Ningbo Liu Department of Immunology Tianjin Medical University Cancer Institute&HospitalNational Clinical Research Center for CancerKey Laboratory of Cancer Prevention and TherapyTianjinTianjin's Clinical Research Center for CancerKey Laboratory of Cancer Immunology and BiotherapyTianjin 300060China Department of Oncology Ganyu District People's Hospital of Lianyungang CityLianyungang 222100China Department of Oncology Hebei Province Cangzhou Hospital of Integrated Traditional and Western MedicineCangzhou 061000China Department of Radiation Oncology Yantai Yuhuangding HospitalYantai 264000China Department of Radiation Oncology Tianjin Medical University Cancer Institute&HospitalNational Clinical Research Center for CancerKey Laboratory of Cancer Prevention and TherapyTianjinTianjin's Clinical Research Center for CancerTianjin 300060China

Objective:To assess the clinical outcomes and toxicities of once daily(QD)simultaneous dose reduction intensity-modulated radiotherapy(SDR-IMRT-QD;SDR-QD)versus conventional QD IMRT(C-QD)and twice daily(BID)IMRT in patients with limited-stage small cell lung cancer(LS-SCLC).Methods:After propensity score matching(PSM),a retrospective analysis involving 300 patients with LS-SCLC treated using SDR-QD,C-QD,or BID was performed from January 1,2014 to December 31,*** prescribed irradiation dose in the SDR-QD cohort was 60 Gy/PGTV and 54 Gy/PTV *** radiation dose was 60 Gy for both PGTV and PTV QD in the C-QD *** radiation dose was 45 Gy for both PGTV and PTV in the BID ***,short-term effects,and survival outcomes were recorded.A meta-analysis on the protective effects of pharmaceuticals for cardiac toxicities induced by anti-tumor therapy was ***:The median overall survival time(MST)in the 3 cohorts were 32.7 months(SDR-QD),26.3 months(C-QD),and 33.6 months(BID);the differences between groups were statistically *** toxicities and doses to organs-at-risk(OARs)occurred in the SDR-QD and BID ***,the cardiac dose dosimetric parameter Vheart40 was negatively associated with survival(r=-0.35,P=0.007).A Vheart40 value of 16.5%was recommended as a cut-off point,which yielded 54.7%sensitivity and 85.7%specificity for predicting negative survival *** meta-analysis indicated that pharmaceuticals significantly reduced the cardiac toxicities induced by chemotherapy,but not ***:SDR-QD was shown to have similar toxicities and survival compared with BID,but fewer toxicities and better survival than *** addition,cardiac dose exposure was negatively associated with ***,16.5%of the cardiac dosimetric parameter Vheart40 is recommended as the cut-off point,and a Vheart40>16.5%predicts poor survival.

关键词： cardiac radiotherapy doses

Cold-induced yes-associated-protein expression through miR-429 mediates the browning of white adipose tissue

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Science China(Life Sciences) 2021年第3期64卷 404-418页

作者： Chenji ye Jinjie Duan Xuejiao Zhang Liu Yao Yayue Song Guangyan wang Qi Li Biqing wang Ding Ai Chunjiong wang Yi Zhu Tianjin Key Laboratory of Metabolic Diseases Department of Physiology and PathophysiologyCollaborative Innovation Center of Tianjin for Medical EpigeneticsTianjin Medical UniversityTianjin 300070China Tianjin Key Laboratory of Medical Epigenetics Tianjin Medical UniversityTianjin 300070China

Targeting the white-to-brown fat conversion is important for developing potential strategies to counteract metabolic diseases;yet the mechanisms are not fully ***-associated-protein(YAP),a transcription co-activator,was demonstrated to regulate adipose tissue functions;however,its effects on browning of subcutaneous white adipose tissue(sWAT)are *** demonstrated that YAP was highly expressed in cold-induced beige ***,YAP was found as a target gene of miR-429,which downregulated YAP expression in vivo and in *** addition,miR-429 level was decreased in cold-induced beige ***,pharmacological inhibition of the interaction between YAP and transcriptional enhanced associate domains by verteporfin dampened the browning of *** adipose tissue-specific YAP overexpression increased energy expenditure with increased basal uncoupling protein 1 expression,it had no additional effects on the browning of sWAT in young ***,we found age-related impairment of sWAT browning along with decreased YAP *** these circumstances,YAP overexpression significantly improved the impaired WAT browning in middle-aged *** conclusion,YAP as a regulator of sWAT browning,was upregulated by lowering miR-429 level in cold-induced beige *** the miR-429-YAP pathway could be exploited for therapeutic strategies for age-related impairment of sWAT browning.

关键词： aging browning miR-429 UCP1 YAP

Leaf area index based nitrogen diagnosis in irrigated lowland rice

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Journal of Integrative Agriculture 2018年第1期17卷 111-121页

作者： LIU Xiao-jun cao Qiang YUAN Zhao-feng LIU Xia wang Xiao-ling TIAN Yong-chao cao Wei-xing ZHU Yan National Engineering and Technology Center for Information Agriculture Key Laboratory for Crop System Analysis and Decision Making Ministry of Agriculture/Jiangsu Key Laboratory for Information Agriculture/Jiangsu Collaborative Innovation Center forModern Crop Production/Nanjing Agricultural University Nanjing 210095 P.R. China

Leaf area index （LAI） is used for crop growth monitoring in agronomic research, and is promising to diagnose the nitrogen （N） status of crops. This study was conducted to develop appropriate LAI-based N diagnostic models in irrigated lowland rice. Four field experiments were carried out in Jiangsu Province of East China from 2009 to 2014. Different N application rates and plant densities were used to generate contrasting conditions of N availability or population densities in rice. LAI was determined by LI-3000, and estimated indirectly by LAI-2000 during vegetative growth period. Group and individual plant characters （e.g., tiller number （TN） and plant height （H）） were investigated simultaneously. Two N indicators of plant N accumulation （NA） and N nutrition index （NNI） were measured as well. A calibration equation （LAI=1.7787LAI2o00-0.8816, R2=0.870＂） was developed for LAI-2000. The linear regression analysis showed a significant relationship between NA and actual LAI （R2=0.863^＊＊）. For the NNI, the relative LAI （R2=0.808-） was a relatively unbiased variable in the regression than the LAI （R^2=0.33^＊＊）. The results were used to formulate two LAI-based N diagnostic models for irrigated lowland rice （NA=29.778LAI-5.9397; NNI=0.7705RLAI＋0.2764）. Finally, a simple LAI deterministic model was developed to estimate the actual LAI using the characters of TN and H （LAI=-0.3375（THxHx0.01）2＋3.665（TH×H×0.01）-1.8249, R2=0.875＊＊）. With these models, the N status of rice can be diagnosed conveniently in the field.

关键词： leaf area index rice LAI-2000 nitrogen diagnosis plant characters

Inherent mass transfer engineering of a Co,N co-doped carbon material towards oxygen reduction reaction

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Journal of Energy Chemistry 2021年第7期30卷 391-396页

作者： Yanzhi wang Bin wang Haitao Yuan Zuozhong Liang Zhehao Huang Yuye Zhou Wei Zhang Haoquan Zheng Rui cao Key Laboratory of Applied Surface and Colloid Chemistry Ministry of EducationSchool of Chemistry and Chemical EngineeringShaanxi Normal UniversityXi’an 710119ShaanxiChina Department of Materials and Environmental Chemistry Stockholm UniversityStockholm SE-10691Sweden KTH Royal Institute of Technology School of Engineering Sciences in ChemistryBiotechnology and HealthDepartment of ChemistryDivision of Applied Physical ChemistryAnalytical ChemistryStockholm SE-10044Sweden

Oxygen reduction reaction (ORR) is an important process for the conversion and utilization of a wide range of renewable energy sources, and is critical for the shape of future energy scenario [1–10]. However, ORR is a complex four-electron transfer process and is kinetically sluggish. It is urgent to develop high-efficient electrocatalysts to solve this problem [11–15]. Up to now, precious metal-based catalysts such as Pt-based electrocatalysts have been widely studied and found to be one of the most efficient electrocatalysts for ORR. However, the high price and the small reserves limit their large-scale commercialization [10,16–23]. Therefore, in order to fulfill needs for the practical applications, it is necessary to develop low-cost electrocatalysts, also with high activity and great stability [19,24–28].

关键词： Co,N co-doped porous carbon Electrocatalysis Oxygen reduction reaction Zn-air battery

品格推论的证明机理与程序规制——以事实认定为语境的展开

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环球法律评论 2025年第1期47卷 172-187页

作者：王星译华中科技大学法学院

在诉讼证明中,品格推论的推理过程存在固有的不可靠性因素和不公正偏见,如不当使用,可能导致裁判者心证恣意,有损事实认定的准确性。我国现行法律并未明确禁止品格推论,但由于缺乏应有的指引与约束,其在实务中的运用陷入证明程序的公平... 详细信息

在诉讼证明中,品格推论的推理过程存在固有的不可靠性因素和不公正偏见,如不当使用,可能导致裁判者心证恣意,有损事实认定的准确性。我国现行法律并未明确禁止品格推论,但由于缺乏应有的指引与约束,其在实务中的运用陷入证明程序的公平性、裁判权行使正当性的双重危机。比较法上,美国品格证据排除规则模式(侧重相关性)和欧陆自由心证模式(侧重裁判伦理)对品格推论的规范功能稍有不足,理论解释力稍显薄弱。究其证明机理,品格推论在结构上呈现为观察者、被观察者以及裁判者三方主体之间“社会评价—规范评价”的双重系统。以此为基础,应立足我国本土规范体系和制度语境,从证明对象及属性的识别、竞争性程序的建立以及裁判证成义务的履行三个方面建构契合品格推论证明机理的程序性约束机制。

关键词：品格推论证明程序事实认定证据排除规则

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再造河山——“两万三千里”国画写生与钱松喦的笔墨之变

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美术 2025年第2期 96-101页

作者：王常浩中央美术学院

1960年,钱松嵒参加了江苏省国画院组织的“两万三千里”国画写生运动,创作了一批具有代表性的革命圣地题材山水画作品。本文以这批主题性山水创作为线索,对钱松喦的风格变化展开分析。进而指出,在特定的历史语境下,国家话语、集体写生... 详细信息

1960年,钱松嵒参加了江苏省国画院组织的“两万三千里”国画写生运动,创作了一批具有代表性的革命圣地题材山水画作品。本文以这批主题性山水创作为线索,对钱松喦的风格变化展开分析。进而指出,在特定的历史语境下,国家话语、集体写生与个体情感的同频共振,促使钱松嵒将革命精神与新中国山水画创作相结合,在主题思想、精神内涵、笔墨表现等诸多方面取得了创新突破,开拓了革命圣地题材山水画表现的新形式。

关键词：钱松嵒新国画革命圣地题材笔墨

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胜利油田污水对微球调驱性能影响实验研究

油气地质与采收率 2025年第1期32卷 186-193页

作者：王守军中国石化胜利油田分公司山东东营257001

微球调驱技术因其能够有效封堵高渗透通道、改善油层流动性能而备受关注。通过核心驱替实验和流变性能测试,系统分析了微球在不同浓度及pH值胜利油田污水中的分散性、驱油性能、长期稳定性及作用机理。结果表明:随着油田污水质量分数从... 详细信息

微球调驱技术因其能够有效封堵高渗透通道、改善油层流动性能而备受关注。通过核心驱替实验和流变性能测试,系统分析了微球在不同浓度及pH值胜利油田污水中的分散性、驱油性能、长期稳定性及作用机理。结果表明:随着油田污水质量分数从0增加至50%,微球的平均粒径从1.2µm增至2.0µm,分散性显著变差。在不同pH值条件下,微球在pH值为4的油田污水中的平均粒径为2.2µm,而在pH值为9时降至1.3µm,分散性较好。核心驱替实验结果显示,在高有机物成分的油田污水中,微球的驱油效率最高,达到50.3%。微球在质量分数为30%的油田污水中的长期稳定性较差,28 d后平均粒径增至2.1µm。流变实验结果表明,微球悬浮液具有剪切增稠特性,剪切速率为1000 s-1时剪切应力为9.1 Pa。机理分析表明,微球通过静电吸附、物理吸附和化学吸附与污水中的杂质和悬浮颗粒发生相互作用,显著影响其分散性和驱油效果。

关键词：胜利油田油田污水微球驱替稳定性

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