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Lateral ring compression test applied to a small caliber steel jacket:Identification of a constitutive model

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Defence Technology（防务技术） 2024年第6期36卷 133-148页

作者： Yann Coget Yael Demarty Christophe Czarnota anthony Bracq Jean-Sebastien Brest Alexis Rusinek French-German Research Institute of Saint-Louis 5 Rue Du General Cassagnou68300 Saint-LouisFrance Laboratoire d'etude des Microstructures et de Mecanique des Materiaux(LeM3) CNRSUniversite de LorraineArts&Metiers ParisTechF-57000 MetzFrance

The evolution of threats and scenarios requires continuous performance improvements of ballistic protections for armed *** a modeling point of view,it is necessary to use sufficiently precise material behavior models to accurately describe the phenomena observed during the impact of a projectile on a protective *** this context,the goal of this paper is to characterize the behavior of a small caliber steel jacket by combining experimental and numerical *** experimental method is based on the lateral compression of ring specimens directly machined from the thin and small *** speeds and temperatures are considered in a quasi-static regime in order to reveal the strain rate and temperature dependencies of the tested *** Finite element Updating Method(FeMU)is *** results are coupled with an inverse optimization method and a finite element numerical model in order to determine the parameters of a constitutive model representative of the jacket *** of the present model are verified against experimental results and a parametric study as well as a discussion on the identified material parameters are *** results indicate that the strain hardening parameter can be neglected and the behavior of the thin steel jacket can be described by a modeling without strain hardening sensitivity.

关键词： Full metal jacket ammunition Lateral ring compression Inverse identification Numerical simulation

Microstructural evolution in lithium plating process and its effect on the calendar storage life

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Nano Research 2024年第10期17卷 8834-8841页

作者： Ki Hwan Koh Dong Ju Lee anthony Mu Kangwoon Kim Taehee Kim Zheng Chen Department of Chemical and Nano engineering University of California San DiegoLa JollaCA 92093USA Program of Materials Science and engineering University of California San DiegoLa JollaCA 92093USA Sustainable Power and energy Center University of California San DiegoLa JollaCA 92093USA

The growing demand for electric vehicles highlights the need for energy storage solutions with higher densities,spotlighting Li metal anodes as potential successors to traditional Li-ion batteries(LIBs).Achieving longer calendar aging life for Li metal anodes is crucial for their practical use,given their propensity for corrosion due to a low redox potential,which leads to compromised cycling stability and significant capacity loss during *** research investigated that this susceptibility is mainly dependent on the surface area of Li metal anode and the properties of the solid electrolyte interphase(SeI),particularly its stability and growth *** research adds to this understanding by demonstrating that the amount of Li plating is a key factor in its corrosion during open-circuit storage,as assessed across various *** discovered that increasing the Li plating amount effectively reduces Coulombic efficiency(C.e.)loss during aging,due to a lower surface area-to-Li *** implies that the choice of electrolyte for optimal storage life should consider the amount of Li plating,with higher capacities promoting better storage characteristics.

关键词： lithium metal batteries anode-free batteries calendar life of batteries lithium anode corrosion

脑干背侧迷走神经复合体中星形胶质细胞对食物摄取的调节

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神经损伤与功能重建 2020年第1期15卷 F0003-F0003页

作者： Alastair J.MacDonald Fiona e.Holmes Craig Beall anthony e.pickering Kate L.J.ellacott 杜一星(编译) Institute of Biomedical and Clinical Sciences University of Exeter Medical SchoolExeterUK. School of Physiology Pharmacology and NeuroscienceUniversity of BristolBiomedical Sciences BuildingUniversityWalkBristolUK. Anaesthesia Pain and Critical Care SciencesTranslational Health SciencesBristol Medical SchoolUniversity of BristolBristolUK. 不详

随着下丘中与调节能量稳态有关的脑星形胶质细胞信号传导的发现,星形胶质细胞在控制摄食的脑回路中的作用正逐渐被认识。脑干背侧迷走神经复合体(DVC)内的孤束核(NTS)整合了来自内脏的迷走神经传入信息,并起调节摄食的作用。我们假定该... 详细信息

随着下丘中与调节能量稳态有关的脑星形胶质细胞信号传导的发现,星形胶质细胞在控制摄食的脑回路中的作用正逐渐被认识。脑干背侧迷走神经复合体(DVC)内的孤束核(NTS)整合了来自内脏的迷走神经传入信息,并起调节摄食的作用。我们假定该核团中的星形胶质细胞对食物摄入做出反应并影响食物摄入。在黑暗期喂食高脂食物12 h的小鼠出现NTS星形胶质细胞活化,表现为与对照饲料喂养的小鼠相比,极后区(AP)邻近的神经胶质纤维酸性蛋白(GFAP)免疫反应性细胞数量增加(65%)和形态复杂性增高。为了检测星形胶质细胞活化对食物摄入的影响,我们使用腺相关病毒(AAV)载体(AAV-GFAPh M3Dq-m Cherry)将设计药物激活的设计受体(DReADDs)导入DVC星形胶质细胞(包括孤束核、极后区和迷走神经背运动核)。使用氯氮平-N-氧化物(0.3 mg/kg)进行化学遗传激活星形胶质细胞使其产生了比平行处理组星形细胞更复杂的形态,并在注射后4 h使动物在黑暗期进食减少84%。与表达AAV-GFAPm Cherry的对照小鼠相比,DVC星形胶质细胞的h M3Dq激活在禁食过夜后仍然减少黑暗期摄食(注射后4 h降低71%)。DReADD介导的星形胶质细胞激活不影响运动功能。DVC中星形胶质细胞的h M3Dq激活引起邻近的摄食神经回路(包括臂旁核)中c-FOS的表达。这表明NTS星形胶质细胞能对急性营养过剩做出反应,参与外周饱腹感信号的整合,并且在其激活后可以减少食物摄入。

关键词：星形胶质细胞化学遗传技术摄食新陈代谢孤束核

Wood anatomical acclimation in the endemic genus Polylepis in Peruvian Andean forests

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Journal of Mountain Science 2024年第9期21卷 2986-3000页

作者： anthony GUeRRA Fressia N.AMeS-MARTÍNeZ ernesto C.RODRÍGUeZ-RAMÍReZ Postgraduate Programme in Agronomy/Plant Physiology Department of Biology-Institute of Natural Sciences Federal University of LavrasLavras 37203-202Minas Gerais 30000-31999Brazil Laboratory of Biotechnology and Molecular Biology Continental UniversitySan Antonio UrbanizationHuancayo 12000Peru ecology and Biodiversity Research Programme ANDINUS AssociationMiguel Grau Street 370Huancayo 12000Peru Dendrochronology Laboratory Continental UniversitySan Carlos Avenue 1980Huancayo 12000Peru

Polylepis(Queñua)is a dominant woody plant genus in Andean Puna forests that occurs in a wide range of montane habitats and is ecologically diverse in endemism,which may be particularly threatened by climate *** anatomical traits are essential for understanding how plants adjust their ecophysiological requirements and maximize their resilience,resistance,and recovery to extreme *** the effects of extreme climatic conditions in high altitude ecosystems have been studied extensively,our knowledge is relatively limited to quantitative differences in the main xylem *** address this gap,we assessed the acclimation of wood anatomical traits in six Peruvian Andean Polylepis species with different water availability(semi-dry with high moisture and semiarid with dry winters).We selected hydraulic diameter,vessel density,vessel grouping index,solitary vessel index,vulnerability index,mesomorphy index,vessel element length,fiber length,fiber wall thickness,fiber lumen diameter,and total fiber diameter that can provide relevant eco-wood anatomical acclimation to hydric *** performed multivariate analysis to determine the leading dimensions of covariation among Polylepis species and climatic *** wood anatomical traits(vessel grouping index,vulnerability index,and fiber wall thickness)were dissimilar between xeric-and mesic-Polyelpis *** study demonstrates that wood anatomical traits in Peruvian Andean Polylepis species provides high-resolution and long-term eco-wood anatomical signals on how climate oscillations drive the acclimation processes of fiber and vessel *** findings underscore the significance of xylem hydraulic adjustment to various hydrological environments in Andean puna *** evaluating the effects of drought on wood anatomical characteristics and ecological function,we demonstrate the capacity of tree species to adapt and endure climate-related changes,thereby emphasizing their resilience and ada

关键词： Carlquist indices Climatic resilience Vessel traits Fiber Functional trait Hydric stress

Anti-N-methyl-D-aspartate receptor-associated encephalitis: A review of clinicopathologic hallmarks and multimodal imaging manifestations

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World Journal of Radiology 2024年第1期16卷 1-8页

作者： Bryce David Beutler Alastair e Moody Jerry Mathew Thomas Benjamin Phillip Sugar Mark B Ulanja Daniel Antwi-Amoabeng Lucas anthony Tsikitas Department of Radiology University of Southern CaliforniaKeck School of MedicineLos AngelesCA 90033United States Department of Anesthesiology University of UtahSalt Lake CityUT 84132United States Department of Internal Medicine Christus Ochsner St.Patrick HospitalLake CharlesLA 70601United States

Anti-N-methyl-D-aspartate receptor-associated encephalitis(NMDARe)is a rare immune-mediated neuroinflammatory condition characterized by the rapid onset of neuropsychiatric symptoms and autonomic *** mechanism of pathogenesis remains incompletely understood,but is thought to be related to antibodies targeting the GluN1 subunit of the NMDA receptor with resultant downstream dysregulation of dopaminergic *** adults are most frequently affected;the median age at diagnosis is 21 *** is a strong female predilection with a female sex predominance of 4:*** often develops as a paraneoplastic process and is most commonly associated with ovarian ***,NMDARe has also been described in patients with small cell lung cancer,clear cell renal carcinoma,and other benign and malignant *** is based on correlation of the clinical presentation,electro-encephalography,laboratory studies,and *** tomography,positron emission tomography,and magnetic resonance imaging are essential to identify an underlying tumor,exclude clinicopathologic mimics,and predict the likelihood of long-term functional *** imaging may be of value for prognostication and to assess the response to *** may involve high-dose corticosteroids,intravenous immunoglobulin,and plasma ***,we review the hallmark clinicopathologic features and imaging findings of this rare but potentially devastating condition and summarize diagnostic criteria,treatment regimens,and proposed pathogenetic mechanisms.

关键词： Anti-N-methyl-D-aspartate receptor-associated encephalitis Autoimmune encephalitis encephalitis Ovarian teratoma Paraneoplastic syndrome Teratoma

effect of Dietary Components on the Shear Bond Strength of Orthodontics Brackets after Thermal Aging

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Open Journal of Stomatology 2024年第6期14卷 309-315页

作者： Philip Punzalan Tanya Al Talib anthony Fusco Neamat Hassan Abubakr School of Dental Medicine University of Nevada Las Vegas Nevada USA

Introduction: The stability of orthodontic brackets throughout orthodontic treatment plays a critical role in the treatment’s effectiveness. The present in vitro study was designed to assess the impact of various dietary components on the performance of orthodontic brackets. Methods: Metal orthodontic brackets were bonded to 66 extracted anterior teeth divided into groups based on the solution type: Milk, Gatorade, Cold Coffee, and a control group using water. each group consisted of 20 teeth except for the control group, which included six teeth. The bracketed teeth were submerged in their respective solutions for 15 minutes three times daily at different intervals to mimic an in vivo environment and were stored in artificial saliva at room temperature (23?C). The specimens underwent artificial aging through 10,000 cycles of thermocycling (representing one clinical year) between 5?C and 55?C. Shade measurements were taken using a VITA easy Shade device, capturing the classic shade and L*, a*, and b* values. Delta e values were calculated immediately post-bonding and after 7 days, 1 month, 1, and 2 clinical years. The shear bond strength of each bracket was measured using an ultra-tester machine. Results: After two clinical years, significant differences in Δe color values were observed across all groups, with the most substantial change noted in teeth immersed in cold coffee. Brackets submerged in milk demonstrated lower shear bond strength than other solutions, whereas the control group exhibited the highest shear bond strength (P = 0.01). Conclusion: The study indicates that dietary components significantly influence tooth color stability and the shear bond strength of orthodontic brackets, underscoring the importance of considering these factors in orthodontic treatment planning.

关键词： Shear Bond Orthodontic Brackets Color Stability Thermal Aging

Linking 24-h Movement Behavior Guidelines to Cognitive Difficulties,Internalizing and externalizing Problems in Preterm Youth

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International Journal of Mental Health Promotion 2024年第8期26卷 651-662页

作者： Zhihui Cheng Ailikute Aikeremu Yanping Gao Zhihao Zhang anthony G.Delli Paoli Paolo Marcello Cunha Alyx Taylor Fabian Herold Liye Zou Body-Brain-Mind Laboratory School of PsychologyShenzhen UniversityShenzhen518060China Department of Kinesiology and Health Rutgers UniversityNew BrunswickNJ 08901USA Metropolitan University Center of Maringá Maringá87020Brazil School of Health and Rehabilitation Sciences AECC University CollegeBournemouthBH52DFUK Research Group Degenerative and Chronic Diseases MovementFaculty of Health Sciences BrandenburgUniversity of PotsdamPotsdam14476Germany

Background:Given the heightened risk of developmental challenges associated with preterm birth,it is crucial to explore interventions that may ameliorate potential adverse *** study aimed to examine whether meeting the 24-h movement behavior(24-HMB)guidelines,which include recommendations on physical activity(PA),screen time(ST),and sleep(SL),is related to indicators of cognitive difficulties,internalizing problems(e.g.,depression and anxiety),and externalizing problems(e.g.,difficulties in making friends and arguing)in a sample of preterm youth(children and adolescents born preterm).Methods:In this cross-sectional study,data from 3410 preterm youth(aged 6 to 17 years)were included for data *** logistic regression was used to investigate associations between meeting the 24-HMB guidelines and the above-mentioned health outcomes,while controlling for sociodemographic and health-related ***:The prevalence of meeting 24-HMB guidelines varied across independent and integrated components of the 24-HMB *** the ST guideline alone(pegrated guidelines(i.e.,ST+SL and ST+SL+PA)were associated with fewer cognitive difficulties and reduced internalizing and externalizing problems(pecifically,meeting the SL guideline alone and integrated guidelines(i.e.,SL+ST)were associated with lower odds of depression and anxiety(peeting independent,and integrated(PA and/or ST)guidelines were associated with less pronounced difficulties in making friends and arguing(peeting 24-HMB guidelines in an isolated and integrated manner are linked to better cognitive performance and fewer internalizing and externalizing problems in preterm ***:Results suggest that advocating for the implementation of the 24-HMB guidelines may reduce cognitive challenges and behavioral issues,which is of high relevance for improving public *** longitudinal studies in preterm youth should inves

关键词： Cognitive difficulties externalizing problems internalizing problems physical activity preterm youth

Fusobacterium is toxic for head and neck squamous cell carcinoma and its presence may determine a better prognosis

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Cancer Communications 2024年第8期44卷 879-883页

作者： Anjali Chander Jacopo Iacovacci Aize Pellon Radhika Kataria Anita Grigoriadis John Maher Cynthia Sears Gilad Bachrach Teresa Guerrero Urbano Mary Lei Imran Petkar anthony Kong Tony Ng ester Orlandi Nicola Alessandro Iacovelli Loris De Cecco Mara Serena Serafini David Moyes Tiziana Rancati Miguel Reis Ferreira Centre for Host-Microbiome Interactions King’s College LondonLondonUK Comprehensive Cancer Centre King’s College LondonLondonUK Department of Oncology Guys and St Thomas NHS Foundation TrustLondonUK Data Science Unit Fondazione IRCCS Istituto Nazionale dei TumoriMilanItaly Medicine Department Johns Hopkins University School of MedicineBaltimoreMarylandUSA Institute of Biomedical and Oral Research The Hebrew University-Hadassah School of Dental MedicineHadassah Ein Kerem CampusJerusalemIsrael Dipartimento di scienze Clinico-Chirurgiche Diagnostiche e PediatricheUniversitàdegli studi di PaviaPaviaItaly Radiation Oncology Department Fondazione IRCCS Istituto Nazionale dei TumoriMilanItaly Department of Medicine Weill Cornell MedicineNew YorkUSA

Head and neck squamous cell carcinoma(HNSCC)is a devastating *** morbid treatment,5-year survival rates remain poor(28%-67%)[1].There is a significant knowledge gap regarding how the microbiota may impact HNSCC treatment efficacy[2].We used microbiome data from two independent cohorts to test and validate the hypothesis that oral bacteria are associated with HNSCC prognosis and in vitro models to investigate mechanistic *** are detailed in Supplementary Materials.

关键词： prognosis squamous carcinoma

elderly male with blurry vision

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World Journal of emergency Medicine 2019年第1期10卷 59-60页

作者： anthony Maselli Sarah e.Frasure Department of emergency Medicine Brigham and Women's Hospital

Dear editor,We present a case of an elderly gentleman who was punched in the face and subsequently diagnosed by an emergency physician with acute angle closure glaucoma secondary to a posterior lens *** lamp evaluatio... 详细信息

关键词：小学英语课外阅读阅读材料