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Electrochemical Realization of 3D Interconnected MoS_(3)/PPy Nanowire Frameworks as Sulfur-Equivalent Cathode Materials for Li-S Batteries

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Energy & Environmental Materials 2024年第2期7卷 9-17页

作者： Hongtao Yu andreas Siebert Shilin Mei Raul Garcia-Diez Roberto Félix Ting Quan Yaolin Xu Johannes Frisch Regan G.Wilks Marcus Bär Chun Pei Yan Lu Department for Electrochemical Energy Storage Helmholtz-Zentrum Berlin für Materialien und Energie GmbH(HZB)Hahn-Meitner Platz 114109 BerlinGermany Guangdong Province Key Laboratory of Durability for Marine Civil Engineering School of Civil EngineeringShenzhen UniversityShenzhenGuangdong 518060China Department of Interface Design HZBAlbert-Einstein-Str.1512489 BerlinGermany Energy Materials In-Situ Laboratory Berlin(EMIL) Albert-Einstein-Str.1512489 BerlinGermany Helmholtz-Institute Erlangen-Nürnberg for Renewable Energy(HI ERN) Albert-Einstein-Str.1512489 BerlinGermany Department of Chemistry and Pharmacy Friedrich-Alexander-Universität Erlangen-NürnbergEgerlandstr.391058Erlangen Germany Institute of Chemistry University of Potsdam14467Potsdam Germany

The development of freestanding and binder-free electrode is an effective approach to perform the inherent capacity of active materials and promote the mechanism study by minimizing the interference from ***,we construct a freestanding cathode composed of MoS_(3)/PPy nanowires(NWs)deposited on porous nickel foam(NF)(MoS_(3)/PPy/NF)through electrochemical methods,which can work efficiently as sulfur-equivalent cathode material for Li-S *** structural stability of the MoS_(3)/PPy/NF cathode is greatly enhanced due to its significant tolerance to the volume expansion of MoS_(3)during the lithiation process,which we ascribe to the flexible 3D framework of PPy NWs,leading to superior cycling performance compared to the bulk-MoS_(3)/NF *** the interference of binder and carbon additives,the evolution of the chemical and electronic structure of Mo and S species during the discharge/charge was studied by X-ray absorption near-edge spectroscopy(XANES).The formation of lithium polysulfides was excluded as the driving cathode reaction mechanism,suggesting the great potential of MoS_(3)as a promising sulfur-equivalent cathode material to evade the shuttle effect for Li-S *** present study successfully demonstrates the importance of structural design of freestanding electrode enhancing the cycling performances and revealing the corresponding mechanisms.

关键词： 3D-Network electrochemical lithium-sulfur battery MoS_(3) PPy

基于PA66复合材料的产品系统设计流程研究

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机械设计 2024年第2期41卷 147-153页

作者：程文婷李俊 andreas Papenfuss 湖北工业大学工业设计学院湖北省武汉市430068

为探讨复合材料在产品设计流程中的应用优势,提出以单车车轮的设计开发为例,进行基于PA66复合材料的产品系统设计流程的实例研究。在任务说明阶段引入PA66复合材料,明确设计需求及限制约束;在概念说明阶段,运用层次分析法分析设计需求权... 详细信息

为探讨复合材料在产品设计流程中的应用优势,提出以单车车轮的设计开发为例,进行基于PA66复合材料的产品系统设计流程的实例研究。在任务说明阶段引入PA66复合材料,明确设计需求及限制约束;在概念说明阶段,运用层次分析法分析设计需求权重,输出多种车轮方案,并结合多个仿真软件进行最佳方案评估;在结构改进阶段,结合材料性能对车轮整体结构进行改进;在制造与仿真阶段,根据材料特性进行联合仿真测试,以获得最佳车轮设计。研究结果表明:在基于PA66复合材料的产品系统设计流程指导下,车轮整体满足结构强度要求,单轮质量减小最高可达16%,且轮辐壁厚每减小0.5 mm,可额外减小质量约6%,相较于初始方案减少了材料用量及生产成本。该研究方法可为同类产品的研发提供系统性理论指导。

关键词：产品设计复合材料系统设计流程仿真验证车轮设计

Health behavior outcomes in stroke survivors prescribed wearables for atrial fibrillation detection stratified by age

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Journal of Geriatric Cardiology 2024年第3期21卷 323-330页

作者： Joanne Mathew Jordy Mehawej Ziyue Wang Taylor Orwig Eric Ding andreas Filippaios Syed Naeem Edith Mensah Otabil Alex Hamel Kamran Noorishirazi IrinaRadu Jane Saczynski David D.McManus Khanh-Van Tran Division of Cardiovascular Medicine Department of MedicineUniversity of Massachusetts Chan Medical SchoolLake Avenue NorthWorcesterUSA Department of Internal Medicine Central Michigan UniversityMount PleasantUSA Department of Pharmacy and Health Systems Sciences School of PharmacyNortheastern UniversityBostonUSA Department of Population and Quantitative Health Sciences University of Massachusetts Chan Medical SchoolLake Avenue NorthWorcesterUSA

BACKGROUND Smartwatches have become readily accessible tools for detecting atrial fibrillation(AF).There remains limited data on how they affect psychosocial outcomes and engagement in older *** examine the health behavior outcomes of stroke survivors prescribed smartwatches for AF detection stratified by *** We analyzed data from the Pulsewatch study,a randomized controlled trial that enrolled patients(≥50 years)with a history of stroke or transient ischemic attack and CHA2DS2-VASc≥*** participants were equipped with a cardiac patch monitor and a smartwatch-app dyad,while control participants wore the cardiac patch monitor for up to 44 *** evaluated health behavior parameters using standardized tools,including the Consumer Health Activation Index,the Generalized Anxiety Disorder questionnaire,the 12-Item Short Form Health Survey,and wear time of participants categorized into three age groups:Group 1(ages 50-60),Group 2(ages 61-69),and Group 3(ages 70-87).We performed statistical analysis using a mixedeffects repeated measures linear regression model to examine differences amongst age *** Comparative analysis between Groups 1,2 and 3 revealed no significant differences in anxiety,patient activation,perception of physical health and wear *** use of smartwatch technology was associated with a decrease in perception of mental health for Group 2 compared to Group 1(β=-3.29,P=0.046).CONCLUSION Stroke survivors demonstrated a willingness to use smartwatches for AF ***,among these study participants,the majority did not experience negative health behavior outcomes or decreased engagement as age increased.

关键词： prescribed stratified wear

Optimizing magneto-ionic performance in structure/composition-engineered ternary nitrides

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Journal of Materiomics 2024年第4期10卷 870-879页

作者： Zheng Ma P.Monalisha Zhengwei Tan Eva Pellicer Maciej O.Liedke Maik Butterling Ahmed G.Attallah Eric Hirschmann andreas Wagner Fatima Ibrahim Mairbek Chshiev Enric Menndez Jordi Sort Departament de Física Universitat Autònoma de BarcelonaCerdanyola del Vallès08193Spain Institute of Radiation Physics Helmholtz-Zentrum Dresden–RossendorfDresden01328Germany University of Grenoble Alpes CEACNRSSPINTECGrenoble38000France Institut Universitaire de France Paris75231France InstitucióCatalana de Recerca i Estudis Avançats(ICREA) Pg.Lluís Companys 23Barcelona08010Spain

Magneto-ionics,an emerging approach to manipulate magnetism that relies on voltage-driven ion motion,holds the promise to boost energy efficiency in information technologies such as spintronic devices or future non-von Neumann computing *** this purpose,stability,reversibility,endurance,and ion motion rates need to be synergistically *** various ions,nitrogen has demonstrated superior magneto-ionic performance compared to classical species such as oxygen or ***,we show that ternary Co1−xFexN compound exhibits an unprecedented nitrogen magneto-ionic *** substitution of Co by Fe in binary CoN is shown to be favorable in terms of generated magnetization,cyclability and ion motion ***,the Co_(0.3)5Fe_(0.6)5N films exhibit an induced saturation magnetization of 1,500 emu/cm^(3),a magneto-ionic rate of 35.5 emu/(cm^(3)·s)and endurance exceeding 103 *** values significantly surpass those of other existing nitride and oxide *** improvement can be attributed to the larger saturation magnetization of Co_(0.35)Fe_(0.65) compared to individual Co and Fe,the nature and size of structural defects in as-grown films of different composition,and the dissimilar formation energies of Fe and Co with N in the various developed crystallographic structures.

关键词： Voltage control of magnetism Magneto-ionics Electrolyte gating Ternary nitrides Ion transport

卒中相关性肺炎的诊断卒中肺炎共识小组的推荐意见

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国际脑血管病杂志 2016年第2期24卷 97-102页

作者： Craig J. Smith Amit K Kishore Andy Vail Angel Chamorro Javier Garau Stephen J. Hopkins Mario Di Napoli Lalit Kalra Peter Langhorne Joan Montaner Christine Roffe Anthony G. Rudd Pippa J. TyrreU Diederik van de Peek Mark Woodhead andreas meisel 范琳琳宿英英首都医科大学宣武医院神经内科重症监护病房北京100053

背景和目的下呼吸道感染常并发于卒中并对转归造成不利影响。对于并发于卒中的下呼吸道感染性疾病，目前尚无公认的专业术语或诊断金标准，这导致临床诊疗和研究受到影响。本共识旨在提出急性卒中并发下呼吸道感染的标准化术语和可操作... 详细信息

背景和目的下呼吸道感染常并发于卒中并对转归造成不利影响。对于并发于卒中的下呼吸道感染性疾病，目前尚无公认的专业术语或诊断金标准，这导致临床诊疗和研究受到影响。本共识旨在提出急性卒中并发下呼吸道感染的标准化术语和可操作性诊断标准。方法对多个文献数据库进行系统检索，经过证据回顾和2轮讨论，最后于2014年9月在英国曼彻斯特召开共识会议，经75％以上共识小组成员达成一致意见后形成共识。结果达成的共识如下：（1）推荐使用卒中相关性肺炎（stroke－associated pneumonia, SAP ）作为卒中发病后7 d内发生的下呼吸道感染性疾病的专业术语。（2）提议对 SAP 使用经过改良的美国疾病控制预防中心（Centers for Disease Control and Prevention, CDC）诊断标准：①很可能的 SAP：符合 CDC 诊断标准，但复查或动态监测胸部 X 片仍缺乏典型改变；②确诊的 SAP：符合 CDC 诊断标准，且胸部 X 片有典型改变。（3）关于白细胞计数或 C反应蛋白在 SAP 诊断中的作用证据有限。（4）其他生物学标记物（如降钙素原）的证据不足。结论提议根据 CDC 诊断标准对 SAP 的术语和诊断制定可操作性的共识标准，需要在卒中患者中进行前瞻性研究来确定其信度、效度以及对医生行为（包括抗生素选择）和临床转归的影响。

关键词：共识 C 反应蛋白肺炎呼吸道感染卒中

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果园机械化疏花技术与装备研究进展

中国农机化学报 2024年第10期45卷 344-352页

作者：张振雷哓晖王伟 andreas Herbst 吕晓兰江苏大学农业工程学院江苏镇江212013 江苏省农业科学院农业设施与装备研究所/农业农村部园艺作物农业装备重点实验室南京市210014 Institute for Chemical Application Technology of JKI Braunschweig Messeweg38104

为促进果园机械化疏花技术与装备发展,提高果园全程机械化水平,通过论述疏花的必要性与作业标准,以期为疏花工作提供理论指导。根据国内外手持式、振动式、机载式和智能式疏花机的工作方法与特点,概括分析其关键技术和优缺点。重点阐述... 详细信息

为促进果园机械化疏花技术与装备发展,提高果园全程机械化水平,通过论述疏花的必要性与作业标准,以期为疏花工作提供理论指导。根据国内外手持式、振动式、机载式和智能式疏花机的工作方法与特点,概括分析其关键技术和优缺点。重点阐述机器视觉作为智能疏花机核心技术在花朵识别应用上的研究现状,通过对比YOLO、Faster R-CNN等典型花朵识别算法的平均精度、召回率和F1分数总结其制约因素和存在的主要问题。针对目前主流机载疏花机存在的工作模式单一、精准作业水平低、对果园标准化水平要求高、适用范围窄等主要问题,从规范果园种植方式、研发新型主轴结构与疏花绳材料、构建果园生产管理经验专家库、花朵识别技术的重点研究方向、智能疏花机未来研发重点5个方面进行展望。

关键词：果园机械化疏花手持机载花朵识别

Diagnostic delay in inflammatory bowel diseases in a German population

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World Journal of Gastroenterology 2024年第29期30卷 3465-3478页

作者： Elisabeth Blüthner Annalena Dehe Carsten Büning Britta Siegmund Matthias Prager Jochen Maul Alexander Krannich Jan Preiß Bertram Wiedenmann Florian Rieder Raneem Khedraki Frank Tacke andreas Sturm Anja Schirbel Department of Hepatology and Gastroenterology Campus Virchow-Klinikum and Campus CharitéMitteCharité-Universitätsmedizin BerlinBerlin 10117Germany Department of Gastroenterology Vivantes Klinikum im FriedrichshainBerlin 10249Germany Department of Internal Medicine Krankenhaus WaldfriedeBerlin 14163Germany Department of Gastroenterology Infectious Diseases and RheumatologyCharité-Universitätsmedizin BerlinBerlin 12203Germany Praxis für Gastroenterologie Berlin Zehlendorf Berlin 14195Germany Gastroenterologie am Bayrischen Platz Berlin 10825Germany Clinical Trial Office Charité-Universitätsmedizin BerlinBerlin 10117Germany Department of Gastroenterology Diabetology and HepatologyVivantes Klinikum NeuköllnBerlin 10117Germany Department of Gastroenterology Hepatology and NutritionDigestive Diseases and Surgery InstituteThe Cleveland Clinic FoundationClevelandOH 44195United States Department of Internal Medicine DRK Kliniken Berlin WestendBerlin 14050Germany Gastroenterologie im Havelland Straße der EinheitFalkensee 14612Germany

BACKGROUND Early diagnosis is key to prevent bowel damage in inflammatory bowel disease(IBD).Risk factor analyses linked with delayed diagnosis in European IBD patients are scarce and no data in German IBD patients *** To identify risk factors leading to prolonged diagnostic time in a German IBD *** Between 2012 and 2022,430 IBD patients from four Berlin hospitals were enrolled in a prospective study and asked to complete a 16-item questionnaire to determine features of the path leading to IBD *** diagnostic time was defined as the time from symptom onset to consulting a physician(patient waiting time)and from first consultation to IBD diagnosis(physician diagnostic time).Univariate and multivariate analyses were performed to identify risk factors for each time *** The total diagnostic time was significantly longer in Crohn’s disease(CD)compared to ulcerative colitis(UC)patients(12.0 vs 4.0 mo;P<0.001),mainly due to increased physician diagnostic time(5.5 vs 1.0 mo;P<0.001).In a multivariate analysis,the predominant symptoms diarrhea(P=0.012)and skin lesions(P=0.028)as well as performed gastroscopy(P=0.042)were associated with longer physician diagnostic time in CD *** UC,fever was correlated(P=0.020)with shorter physician diagnostic time,while fatigue(P=0.011)and positive family history(P=0.046)were correlated with longer physician diagnostic *** We demonstrated that CD patients compared to UC are at risk of long diagnostic *** efforts should focus on shortening the diagnostic delay for a better outcome in these patients.

关键词： Diagnostic time Diagnostic delay Crohn’s disease Ulcerative colitis Germany

Brain antigens in functionally distinct antigen-presenting cell populations in cervical lymph nodes in MS and EAE

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世界最新医学信息文摘 2017年第30期 281-281页

作者： Marloes van Zwam Ruth Huizinga Marie-José Melief Annet F.Wierenga-Wolf Marjan van Meurs Jane S.Voerman Knut P.H.Biber Hendrikus W G.M.Boddeke Uta E.H?pken Christian meisel andreas meisel Ingo Bechmann Rogier Q.Hintzen Bert A.'t Hart Sandra Amor Jon D.Laman Leonie A.Boven

Drainage of central nervous system(CNS) antigens to the brain-draining cervical lymph nodes(CLN) is likely crucial in the initiation and control of autoimmune responses during multiple sclerosis(MS).We demonstrate neuronal antigens within CLN of MS *** monkeys and mice with experimental autoimmune encephalomyelitis(EAE) and in mouse models with non-inflammatory CNS damage,the type and extent of CNS damage was associated with the frequencies of CNS antigens within the cervical lymph *** addition,CNS antigens drained to the spinal-cord-draining lumbar lymph *** human MS CLN,neuronal antigens were present in pro-inflammatory antigen-presenting cells(APC),whereas the majority of myelincontaining cells were *** may reflect a different origin of the cells or different drainage ***,neuronal antigen-containing cells in human CLN did not express the lymph node homing receptor CCR7,whereas myelin antigen-containing cells in situ and in vitro ***,CLN from EAE-affected CCR7-deficient mice contained equal amounts of myelin and neuronal antigens as wild-type *** conclude that the type and frequencies of CNS antigens within the CLN are determined by the type and extent of CNS ***,the presence of myelin and neuronal antigens in functionally distinct APC populations within MS CLN suggests that differential immune responses can be evoked.

关键词： Neuroinflammation Immune regulation Autoreactive Tcells Tolerance Chemokines Cytokines

Brain antigens in functionally distinct antigen-presenting cell populations in cervical lymph nodes in MS and EAE

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世界最新医学信息文摘 2016年第11期 8-8页

作者： Marloes van Zwam Ruth Huizinga Marie-José Melief Annet F.Wierenga-Wolf Marjan van Meurs Jane S.Voerman Knut P.H.Biber Hendrikus W.G.M.Boddeke Uta E.H?pken Christian meisel andreas meisel Ingo Bechmann Rogier Q.Hintzen Bert A.‘t Hart Sandra Amor Jon D.Laman Leonie A.Boven

Drainage of central nervous system(CNS) antigens to the brain-draining cervical lymph nodes(CLN) is likely crucial in the initiation and control of autoimmune responses during multiple sclerosis(MS). We demonstrate neuronal antigens within CLN of MS patients. In monkeys and mice with experimental autoimmune encephalomyelitis(EAE) and in mouse models with non-inflammatory CNS damage, the type and extent of CNS damage was associated with the frequencies of CNS antigens within the cervical lymph nodes. In addition, CNS antigens drained to the spinal-cord-draining lumbar lymph nodes. In human MS CLN, neuronal antigens were present in pro-inflammatory antigen-presenting cells(APC), whereas the majority of myelincontaining cells were anti-inflammatory. This may reflect a different origin of the cells or different drainage mechanisms. Indeed, neuronal antigen-containing cells in human CLN did not express the lymph node homing receptor CCR7, whereas myelin antigen-containing cells in situ and in vitro did. Nevertheless, CLN from EAE-affected CCR7-deficient mice contained equal amounts of myelin and neuronal antigens as wild-type mice. We conclude that the type and frequencies of CNS antigens within the CLN are determined by the type and extent of CNS damage. Furthermore, the presence of myelin and neuronal antigens in functionally distinct APC populations within MS CLN suggests that differential immune responses can be evoked.

关键词： Neuroinflammation Immune regulation Autoreactive Tcells Tolerance Chemokines Cytokines