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LiOH-mediated crystallization regulating strategy enhancing electrochemical performance and structural stability of SiO anodes for lithium-ion batteries

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Nano Research 2024年第9期17卷 8174-8183页

作者： Zhengqiu He Zewen Xu Yu Long Jiexin Zhu Hao Yang kuo chen Qiang Zhou Ning Cao Xiaobo Wang Juan Wang Xiaojie Tan Litao Wang Luhai Wang Shengbao He Mengdi Zhang Han Hu Mingbo Wu State Key Laboratory of Heavy Oil Processing College of Chemistry and Chemical EngineeringChina University of Petroleum(East China)Qingdao 266580China Department of Chemistry National University of Singapore3 Science Drive 3Singapore 117543Singapore School of Chemical Sciences University of AucklandAuckland 1010New Zealand Petrochemical Research Institute Petro China Company Ltd.Beijing 102206China

Silicon monoxide(SiO)is widely recognized as a promising anode material for next-generation lithium-ion *** to its metastable amorphous structure,SiO exhibits a highly complex degree of crystallization at the microscopic level,which significantly influences its electrochemical *** a consequence,accurately regulating the crystallization of SiO,and further establishing the relationship between crystallinity and electrochemical performance are very critical for SiO *** this article,carbon-coated SiO materials with different crystallinity degrees were synthesized using lithium hydroxide monohydrate(LiOH·H_(2)O)as a structural modifier to reveal this ***,moderate amount of LiOH·H_(2)O addition results in the forming of an oxygen-rich shell,which effectively inhibits the inward migration of oxygen atoms on the SiO surface and suppresses volume ***,the crystallinity of SiO will gradually enhance and the crystalline phase appears with increasing the amount of LiOH·H_(2)O,which will generate a deteriorative Li+diffusion *** balancing the above two contradictions,a mass fraction of 1%LiOH·H_(2)O for the additive yielded SiO@C-1,characterized by optimal ***@C-1 demonstrates exceptional long-cycle stability with 74.8%capacity retention after 500 cycles at 1 A·g^(-1).Furthermore,it achieves a capacity retention of 52.2%even at a high density of 5 A·g^(-1).This study first reveals the relationship between SiO crystallinity and electrochemical performance,which efficiently guides the design of high-performance SiO anodes.

关键词： lithium-ion batteries SiO anodes crystallinity regulation high rate long life

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达芬奇机器人保留乳头乳晕乳腺切除即刻假体乳房重建术中预防热蒸汽损伤皮肤组织临床研究

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中国修复重建外科杂志 2024年第7期38卷 813-817页

作者：陈阔吕鹏威郑州大学第一附属医院乳腺外科郑州450052

目的探讨达芬奇机器人保留乳头乳晕乳腺切除即刻假体乳房重建术(robotic nipple-sparing mastectomy and immediate breast reconstruction,R-NSM-IBR)中预防热蒸汽损伤皮肤组织的方法。方法回顾性分析2022年9月—2023年12月接受R-NSM-IBR治疗且符合选择标准的128例乳腺癌女性患者临床资料。术中乳腺切除期间,99例采用覆盖冰水冷却后纱布来降低乳房皮肤温度(A组),29例不作处理(B组)。两组患者年龄、手术侧别、身体质量指数、乳腺癌病理类型及接受辅助化疗、新辅助化疗构成比比较,差异均无统计学意义(P>0.05)。记录并比较术中乳房表面温度、单侧乳腺切除时间以及术中乳房热损伤并发症发生情况。结果A、B组单侧乳腺切除时间分别为(77.18±9.23)、(76.38±12.88)min,差异有统计学意义(P<0.05)。A组术中乳房表面温度为(25.61±0.91)℃,低于B组(33.38±1.14)℃,差异亦有统计学意义(P<0.05)。术中7例发生皮肤热损伤,其中A组2例(2.0%)、B组5例(17.2%),发生率差异有统计学意义(P<0.05)。其中,B组1例水疱破裂并感染,最终导致假体取出;其余患者均干预处理后恢复正常。结论R-NSM-IBR术中采用在乳房表面覆盖冰水冷却后纱布降温方法可有效降低热蒸汽损伤皮肤的风险。

关键词：机器人手术乳房重建皮肤热损伤

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达芬奇机器人乳腺外科手术151例

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中华普通外科杂志 2024年第7期39卷 516-520页

作者：陈阔吕鹏威郑州大学第一附属医院乳腺外科郑州450052

目的总结使用达芬奇机器人乳腺外科手术(robot breast surgery,RBS)技术的初步经验。方法回顾性分析2022年9月至2024年1月期间在郑州大学第一附属医院乳腺外科接受RBS的151例患者的临床资料。结果14例患者使用达芬奇机器人Si^(TM)系统,... 详细信息

目的总结使用达芬奇机器人乳腺外科手术(robot breast surgery,RBS)技术的初步经验。方法回顾性分析2022年9月至2024年1月期间在郑州大学第一附属医院乳腺外科接受RBS的151例患者的临床资料。结果14例患者使用达芬奇机器人Si^(TM)系统,137例患者使用达芬奇机器人Xi^(TM)系统手术。术后随访时间(3±1)个月,无乳头乳晕复合体坏死,除3例假体丢失外,其余患者无严重的围手术期及晚期并发症,且对术后美学效果满意。结论虽然目前现有的证据还不成熟且随访时间较短,但初步结果表明RBS能提供更好的美容效果,而且可能降低乳头坏死的风险。

关键词：乳腺肿瘤乳房成形术假体植入机器人手术

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ON ACTION-MINIMIZING SOLUTIONS OF THE TWO-CENTER PROBLEM

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Acta Mathematica Scientia 2022年第6期42卷 2450-2458页

作者： kuo-Chang chen Department of Mathematics National Tsing Hua UniversityHsinchuTaiwanChina

The two-center problem,also known as Euler's three-body problem,is a classic example of integrable *** its periodic solutions,planetary type solutions are periodic solutions which enclose both *** by advances on n-body and n-center problems via variational techniques developed during the past two decades,a recent paper(***.2022)shows the minimizing property of planetary type solutions for any given masses of centers at fixed positions,as long as the period is above a mass-dependent threshold *** this paper,we provide further discussions regarding this minimizing *** particular,we improve the above-mentioned mass-dependent threshold value by refining estimates for action values.

关键词： two-center problem n-body problem variational method collision singularity

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波浪影响下水下风筝式AUV建模与力学响应分析

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舰船科学技术 2024年第4期46卷 78-87页

作者：张行健陈质二俞建成任楷陈阔中国科学院沈阳自动化研究所机器人学国家重点实验室辽宁沈阳110016 中国科学院机器人与智能制造创新研究院辽宁沈阳110169 中国科学院大学北京100049

针对强天气条件下相关参数难以获取,提出一种由水面智能拖体、水下高机动AUV和高强度拖缆组成的“水下风筝”式三体AUV,有望实现台风现场海气界面与上层水体同步探测。为探究高海况下“水下风筝”式AUV技术可行性,对其在波浪影响的力学... 详细信息

针对强天气条件下相关参数难以获取,提出一种由水面智能拖体、水下高机动AUV和高强度拖缆组成的“水下风筝”式三体AUV,有望实现台风现场海气界面与上层水体同步探测。为探究高海况下“水下风筝”式AUV技术可行性,对其在波浪影响的力学响应特性进行分析,建立基于微振幅波理论和经典多体刚柔结构动力学建模方法的“水下风筝”式AUV动力学模型,采用数值模拟方法获得了不同拖曳速度、不同海况等级下AUV端受力和深度值,结果表明从力学角度当前技术条件可满足“水下风筝”式AUV高海况下同步观测需求。

关键词： AUV 水下风筝高海况水动力动力学建模

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Distance Estimates for Simple Choreographic Solutions of the Three-body Problem

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Acta Mathematica Sinica,English Series 2022年第10期38卷 1823-1830页

作者： kuo Chang chen Bo Yu PAN Department of Mathematics “National Tsing Hua University”HsinchuTaiwanChina Department of Applied Mathematics “National Chung Hsing University”TaichungTaiwanChina

In this article we estimate mutual distances of simple choreographic solutions for the Newtonian three-body *** formulas will be proved and our applications include the famous figure-8 orbit.

关键词： n-body problem variational method mutual distance

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Artificial intelligence reinforced upconversion nanoparticle-based lateral flow assay via transfer learning

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Fundamental Research 2023年第4期3卷 544-556页

作者： Wei Wang kuo chen Xing Ma Jinhong Guo School of Information and Communication Engineering University of Electronic Science and Technology of ChinaChengdu 611731China School of Software Engineering Chongqing University of Posts and TelecommunicationsChongqing 400065China School of Materials Science and Engineering Harbin Institute of Technology(Shenzhen)Shenzhen 518055China The M.O.E.Key Laboratory of Laboratory Medical Diagnostics The College of Laboratory MedicineChongqing Medical UniversityChongqing 400016China

The combination of upconverting nanoparticles(UCNPs)and immunochromatography has become a widely used and promising new detection technique for point-of-care testing(POCT).However,their low luminescence efficiency,non-specific adsorption,and image noise have always limited their progress toward practical ***,artificial intelligence(AI)has demonstrated powerful representational learning and generalization capabilities in computer *** report for the first time a combination of AI and upconversion nanoparticle-based lateral flow assays(UCNP-LFAs)for the quantitative detection of commercial internet of things(IoT)*** universal UCNPs quantitative detection strategy combines high accuracy,sensitivity,and applicability in the field detection *** using transfer learning to train AI models in a small self-built database,we not only significantly improved the accuracy and robustness of quantitative detection,but also efficiently solved the actual problems of data scarcity and low computing power of POCT ***,the trained AI model was deployed in IoT devices,whereby the detection process does not require detailed data preprocessing to achieve real-time inference of quantitative *** validated the quantitative detection of two detectors using eight transfer learning models on a small *** AI quickly provided ultra-high accuracy prediction results(some models could reach 100%accuracy)even when strong noise was ***,the high flexibility of this strategy promises to be a general quantitative detection method for optical *** believe that this strategy and device have a scientific significance in revolutionizing the existing POCT technology landscape and providing excellent commercial value in the in vitro diagnostics(IVD)industry.

关键词： Upconverting nanoparticles Lateral flow assays Transfer learning Internet of medical things Portable fluorescent sensor

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Precise mapping of hilar cholangiocarcinoma with a skip lesion by SpyGlass cholangioscopy:A case report

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World Journal of Gastrointestinal Surgery 2023年第5期15卷 965-971页

作者： cheng-Han Chiang Kuan-Chih chen Benedict Devereaux chen-Shuan Chung Kuei-Chang kuo Chien Chu Lin cheng-Kuan Lin Hsiu-Po Wang kuo-Hsin chen Division of Gastroenterology and Hepatology Department of Internal MedicineXin-Tai General HospitalNew Taipei 242063Taiwan Department of Internal Medicine Far Eastern Memorial HospitalNew Taipei 22060Taiwan Department of Gastroenterology Royal Brisbane and Women's HospitalHerston 4029QueenslandAustralia Department of Internal Medicine College of MedicineNational Taiwan UniversityTaipei 10002Taiwan Department of Surgery Far Eastern Memorial HospitalNew Taipei 22060Taiwan

BACKGROUND Cholangiocarcinoma(CC)is a very aggressive cancer with a poor *** surgery is the only curative therapy,preoperative evaluation of the tumor extent is essential for surgical *** high-quality image modalities such as computed tomography and magnetic resonance imaging have been used extensively in preoperative evaluation,the accuracy is *** obtain precise localization of tumor spread arising from the hilar region preoperatively,the development of an acceptable imaging modality is still an unmet *** SUMMARY A 52-year-old female presented to our emergency department with jaundice,abdominal pain,and ***,she was treated for *** retrograde cholangiopancreatography with the cholangiogram showed long segment filling defect in the common hepatic duct with dilatation of bilateral intrahepatic *** biopsy was performed,and the pathology suggested intraductal papillary neoplasm with high-grade *** treatment of cholangitis,contrasted-enhanced computed tomography revealed a hilar lesion with undetermined Bismuth-Corlette *** cholan gioscopy showed that the lesion involved the confluence of the common hepatic duct with one skip lesion in the posterior branch of the right intrahepatic duct,which was not detected by previous image *** surgical plan was modified from extended left hepatectomy to extended right *** final diagnosis was hilar CC,*** patient has remained disease-free for more than 3 *** SpyGlass cholangioscopy may have a role in precision localization of hilar CC to provide surgeons with more information before the operation.

关键词： Hilar cholangiocarcinoma Jaundice SpyGlass cholangioscopy Bismuth-Corlette classification Hepatectomy Case report

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Cellular and molecular overview of gestational diabetes mellitus:Is it predictable and preventable?

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World Journal of Diabetes 2023年第11期14卷 1693-1709页

作者： Pei-Qi Lim Yen-Ju Lai Pei-Ying Ling kuo-Hu chen Department of Obstetrics and Gynecology Taiwan Adventist HospitalTaipei 105TaiwanChina School of Medicine George Washington UniversityWashingtonDC 20052United States Department of Obstetrics and Gynecology Taipei Tzu-Chi General HospitalTaipei 231TaiwanChina

BACKGROUND In contrast to overt diabetes mellitus(DM),gestational DM(GDM)is defined as impaired glucose tolerance induced by pregnancy,which may arise from exaggerated physiologic changes in glucose *** prevalence is reported to be as high as 20%among pregnancies depending on the screening method,gestational age,and the population *** and fetal effects of uncontrolled GDM include stillbirth,macrosomia,neonatal diabetes,birth trauma,and subsequent postpartum ***,it is essential to find the potential target population and associated predictive and preventive measures for future intensive peripartum *** To review studies that explored the cellular and molecular mechanisms of GDM as well as predictive measures and prevention *** The search was performed in the Medline and PubMed databases using the terms“gestational diabetes mellitus,”“overt diabetes mellitus,”and“insulin resistance.”In the literature,only full-text articles were considered for inclusion(237 articles).Furthermore,articles published before 1997 and duplicate articles were *** a final review by two experts,all studies(1997-2023)included in the review met the search terms and search strategy(identification from the database,screening of the studies,selection of potential articles,and final inclusion).RESULTS Finally,a total of 79 articles were collected for *** risk factors for GDM included maternal obesity or overweight,pre-existing DM,and polycystic ovary *** pathophysiology of GDM involves genetic variants responsible for insulin secretion and glycemic control,pancreaticβcell depletion or dysfunction,aggravated insulin resistance due to failure in the plasma membrane translocation of glucose transporter 4,and the effects of chronic,low-grade ***,many antepartum measurements including adipokines(leptin),body mass ratio(waist circumference and waist-to-hip ratio),and biomarkers(microRNA in extra

关键词： Gestational diabetes mellitus Overt diabetes mellitus Insulin resistance Diabetes mellitus

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基于CNN-BiGRU的高压直流输电线路故障识别

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吉林电力 2024年第1期52卷 29-34,39页

作者：赵妍王泽通邢士标朱建华陈阔张思博东北电力大学吉林吉林132012 国网四平供电公司吉林四平136000 润电能源科学技术有限公司郑州450000

针对高压直流(high voltage direct current,HVDC)输电线路故障暂态行波具有时序性和强非线性的特点,导致高过渡电阻情况下故障识别率低的问题,提出基于卷积神经网络(convolutional neural networks,CNN)和双向循环门单元(bidirectional... 详细信息

针对高压直流(high voltage direct current,HVDC)输电线路故障暂态行波具有时序性和强非线性的特点,导致高过渡电阻情况下故障识别率低的问题,提出基于卷积神经网络(convolutional neural networks,CNN)和双向循环门单元(bidirectional gate recurrent unit,BiGRU)的HVDC输电线路故障识别方法。首先,采用故障后整流侧的双极暂态电流行波作为特征向量,利用CNN提取全局特征,并从中剔除噪声和不稳定成分,完成对数据的降维处理。然后,采用BiGRU来捕获CNN提取到特征的前后时间信息,进一步提取数据中的时序特征,以实现HVDC输电线路故障识别。仿真结果表明:该方法可在不同故障地点以及不同过渡电阻下对单极接地、双极短路、雷击故障、雷击干扰共四种故障实现准确识别,可靠性高,具有较强的耐受过渡电阻能力,同时具备一定的抗噪性能。

关键词：深度学习高压直流卷积神经网络双向循环门单元故障识别

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