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Metallurgical performance evaluation of space-weathered chang’e-5 lunar soil

International Journal of Minerals,Metallurgy and materials 2024年第6期31卷 1241-1248页

作者： chen Li Wenhui ma Yang Li Kuixian Wei center for Lunar and Planetary Sciences Institute of GeochemistryChinese Academy of SciencesGuiyang 550081China Faculty of Metallurgical and Energy Engineering Kunming University of Science and TechnologyKunming 650093China

Space metallurgy is an interdisciplinary field that combines planetary space science and metallurgical *** involves systematic and theoretical engineering technology for utilizing planetary resources in ***,space metallurgy on the Moon is challenging because the lunar surface has experienced space weathering due to the lack of atmosphere and magnetic field,making the mi-crostructure of lunar soil differ from that of minerals on the *** this study,scanning electron microscopy and transmission electron microscopy analyses were performed on chang’e-5 powder lunar soil *** microstructural characteristics of the lunar soil may drastically change its metallurgical *** main special structure of lunar soil minerals include the nanophase iron formed by the impact of micrometeorites,the amorphous layer caused by solar wind injection,and radiation tracks modified by high-energy particle rays inside mineral *** nanophase iron presents a wide distribution,which may have a great impact on the electromagnetic prop-erties of lunar *** ions injected by solar wind may promote the hydrogen reduction *** widely distributed amorph-ous layer and impact glass can promote the melting and diffusion process of lunar ***,although high-energy events on the lun-ar surface transform the lunar soil,they also increase the chemical activity of the lunar *** is a property that earth samples and tradi-tional simulated lunar soil *** application of space metallurgy requires comprehensive consideration of the unique physical and chemical properties of lunar soil.

关键词： space metallurgy chang’e-5 lunar soil space weathering metallurgical performance

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Potential modifying effect of grip strength on the association between glycated hemoglobin(HbA1c)and all-cause mortality in older adults with type 2 diabetes:Evidence from UK Biobank

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chinese Medical Journal 2024年第12期137卷 1501-1503页

作者： Jingyi Lu Yaxin Wang Yun Shen Yifei Mo Xiaojing ma Gang Hu Jian Zhou Department of Endocrinology and Metabolism Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai Clinical Center for DiabetesShanghai Key Clinical Center for Metabolic DiseaseShanghai Key Laboratory of Diabetes MellitusShanghai 200233China Shanghai Diabetes Institute Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai 200233China Pennington Biomedical Research center Baton RougeLA 70808USA

To the Editor:Frailty status represents one of the core determinants for the individualization of glycated hemoglobin(HbA1c)targets in the elderly ***,the most validated tools to quantify frailty,which are complex and involve multiple dimensions of assessment,are rarely used in the clinical practice of diabetes ***,a simple and practical metric for the evaluation of frailty is *** strength is an easily measurable,objective,and reproducible metric for assessing frailty status.[1]It is correlated with overall muscle strength and has been reported to be signicantly related to important health outcomes both in the general population[2,3]and in patients with diabetes.[4]Therefore,grip strength could be a useful marker for patient strati-cation in diabetes *** this context,this study aimed to examine the associations between HbA1c and all-cause mortality across categories of grip strength,as a measure of frailty status,in older adults with type 2 diabetes in the UK *** researches had applied to access the UK Biobank database with the application approval number of 82812.

关键词： diabetes mortality strength

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3D simulation of image-defined complex internal features using the numerical manifold method

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Science china(Technological Sciences) 2024年第4期67卷 1023-1039页

作者： WU Jie ma GuoWei School of civil and Transportation Engineering Hebei University of TechnologyTianjin 300401China Tianjin Key Laboratory for Prefabricated Building and Intelligent construction Tianjin 300401China

The numerical simulation of internal features,such as inclusions and voids,is important to analyze their impact on the performance of composite ***,the complex geometries of internal features and the induced continuous-discontinuous(c-D)deformation fields are challenges to their numerical *** this study,a 3D approach using a simple mesh to simulate irregular internal geometries is developed for the first *** the help of a developed voxel crack model,image models that are efficient when recording complex geometries are directly imported into the *** reconstructions,which are usually labor-intensive,are excluded from this ***,using image models as the geometric input,image processing techniques are applied to detect material interfaces and develop contact ***,the c-D deformations of the complex internal features are directly calculated based on the numerical manifold *** accuracy and convergence of the developed3D approach are examined based on multiple *** 3D c-D simulation of sandstones with naturally formed complex microfeatures demonstrates the capability of the developed approach.

关键词： 3D continuous-discontinuous simulation image-based simulation complex internal features numerical manifold method voxel crack model structured mesh

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On hypersurfaces of H2×H2

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Science china mathematics 2024年第2期67卷 339-366页

作者： Dong Gao Hui ma Zeke Yao School of Science Beijing University of Civil Engineering and Architecture Department of mathematical Sciences Tsinghua University

In this paper, we study hypersurfaces of H2× H2. We first classify the hypersurfaces with constant principal curvatures and constant product angle functions. Then we classify homogeneous hypersurfaces and isoparametric hypersurfaces, respectively. Finally, we classify the hypersurfaces with at most two distinct constant principal curvatures, as well as those with three distinct constant principal curvatures under some additional conditions.

关键词： constant principal curvature homogeneous hypersurface isoparametric hypersurface 53c42 53B25 53c40

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characterization of Arroyo Verde Epithermal Deposit:Paragenesis,Mineral Geochemistry,Geochronology and Fluid Inclusions in Lower chon Aike Volcanism,Argentina

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Journal of Earth Science 2024年第1期35卷 62-84页

作者： cecilia Pavón Pivetta Leonardo Benedini Paulo marcos ma.Agustina cócola Mercedes Virginia Barros Daniel Gregori Leonardo Strazzere Anderson costa dos Santos mauro c.Geraldes Instituto Geologico del Sur(INGEOSUR) Universidad Nacional del Sur(UNS)-Consejo Nacional de Investigaciones Cientificas y Tecnicas(CONICET)Bahia Blanca 8000Argentina Dpto.de Geologia Universidad Nacional del Sur(UNS)Bahia Blanca 8000Argentina Universidad Nacional de Rio Negro Instituto de Investigacion en Paleobiologia y GeologiaGeneral Roca 8332Argentina Universidade do Estado do Rio de Janeiro Faculdade de GeologiaDepartamento de Mineralogia e Petrologia igneaRiodeJaneiro20559-900Brazil Geobiotec Departamento de GeocienciasUniversidade de AveiroAveiro 3800-002Portuga

Arroyo Verde epithermal deposit,in the North Patagonia region of Argentina,is located within the Lower chon Aike volcanism and is developed between 192.6±2.5 ma(mineralization host rock)and 189.5±2.6 ma(overlying lava).marifil volcanic complex is the host rock for these veins,veinlets and *** particular small deposit has developed low to intermediate sulphidation characteristics,with gangue mineral textures associated with several ore *** probe microanalysis determines electrum,silver minerals such as acanthite,and tetrahedrite,related Ag-cu minerals like jalpaite,mckinstryite,stromeyerite,and base metals like chalcopyrite,sphalerite,galena and *** inclusions in quartz of two out of five events indicate that these Low Jurassic veins were formed due to subtle boiling and dilution mechanisms and by low-salinity(3.4 wt.%to 6.7 wt.%Nacl Eq)magmatic-hydrothermal fluid at 225 to 310℃.The fluid inclusion measurements that indicate boiling(Event 3)were plotted,and based on this data,we interpret that the Arroyo Verde deposit has been eroded between 550 and 700 *** particular character has not been previously recorded for other sectors of the eastern north Patagonian region.

关键词： epithermal deposit Ag minerals mineral geochemistry fluid inclusions chon Aike geochronology

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carbon nanocages bridged with graphene enable fast kinetics for dual-carbon lithium-ion capacitors

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Green Energy & Environment 2024年第3期9卷 573-583页

作者： Shani Li Yanan Xu Wenhao Liu Xudong Zhang Yibo ma Qifan Peng Xiong Zhang Xianzhong Sun Kai Wang Yanwei ma Institute of Electrical Engineering Chinese Academy of SciencesBeijing100190China University of chinese Academy of Sciences Beijing100049China Innovation Academy for Green manufacture Beijing100190China Beijing Institute of Technology Beijing100081China School of materials Science and Engineering Zhengzhou UniversityZhengzhou450001China

Lithium-ion capacitors(LIcs) combining the advantages of lithium-ion batteries and supercapacitors are considered a promising nextgeneration energy storage device. However, the sluggish kinetics of battery-type anode cannot match the capacitor-type cathode, restricting the development of LIcs. Herein, hierarchical carbon framework(HcF) anode material composed of 0D carbon nanocage bridged with 2D graphene network are developed via a template-confined synthesis process. The HcF with nanocage structure reduces the Li^(+) transport path and benefits the rapid Li^(+) migration, while 2D graphene network can promote the electron interconnecting of carbon nanocages. In addition, the doped N atoms in HcF facilitate to the adsorption of ions and enhance the pseudo contribution, thus accelerate the kinetics of the anode. The HcF anode delivers high specific capacity, remarkable rate capability. The LIc pouch-cell based on HcF anode and active HcF(a-HcF) cathode can provide a high energy density of 162 Wh kg^(-1) and a superior power density of 15.8 kW kg^(-1), as well as a long cycling life exceeding 15,000cycles. This study demonstrates that the well-defined design of hierarchical carbon framework by incorporating 0D carbon nanocages and 2D graphene network is an effective strategy to promote LIc anode kinetics and hence boost the LIc electrochemical performance.

关键词： Hierarchical carbon framework Nanocage ZIF Graphene Lithium-ion capacitors

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Alloy/layer double hydroxide interphasic synergy via nano-heterointerfacing for highly reversible cO_(2)redox reaction in Li-cO_(2)batteries

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Nano Research 2024年第6期17卷 5206-5215页

作者： Tianzhen Jian Wenqing ma Jiagang Hou Jianping ma Xianhong Li Haiyang Gao caixia Xu Hong Liu Institute for Advanced Interdisciplinary Research(iAIR) Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of ShandongSchool of Chemistry and Chemical EngineeringUniversity of JinanJinan 250022China Kyiv college at Qilu University of Technology Qilu University of Technology(Shandong Academy of Sciences)Jinan 250353China State Key Laboratory of crystal materials Shandong UniversityJinan 250100China Shandong Sacred Sun Power Sources co. Ltd.Qufu 273100China

Li-cO_(2)batteries are among the most intriguing techniques for balancing the carbon cycle,but are challenged by the annoyed thermodynamic barrier of the Li_(2)cO_(3)decomposition ***,we demonstrate the electrocatalytic performances of two-dimensional(2D)coAl-layer double hydroxide(LDH)nanosheets can be significantly improved by trans-dimensional crosslinking with three-dimensional(3D)multilevel nanoporous(MP)-RucoAl alloy(MP-RucoAl alloy⊥coAl-LDH).The MP-RucoAl alloy⊥coAl-LDH with multiscale pore channels and abundant nano-heterointerface is directly prepared by controllable etching Al from a Ru-co-Al master alloy along with simultaneous partial oxidization of Al and co *** MP-RucoAl is composed of various intermetallic compounds and Ru with abundant grain boundaries,and forms numerous heterointerface with 2D coAl-LDH *** multiscale porous metallic network benefits mass and electron transportation as well as discharge product storage and enables a rich multiphase reaction *** situ differential electrochemical mass spectrometry shows that the mass-to-charge ratio in the charging process is~0.733 which is consistent with the theoretical value of 3/4,stating that the reversible co-decomposition of Li_(2)cO_(3)and c can be achieved with the MP-RucoAl alloy⊥*** Ketjen black(KB)/MP-RucoAl⊥coAl-LDH battery demonstrates a high cyclability for over 2270 h(227 cycles)with a lower voltage gap stabilized at~1.3 V at 200 ma·g^(−1).Our findings here provide useful guidelines for developing high efficiency transition metal based electrocatalysts by coupling with conductive porous substrate for impelling the development of practical Li-cO_(2)battery systems.

关键词： heterojunction interface nanoporous Li-cO_(2)battery dealloying

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Double-confined nanoheterostructure Sb/Sb_(2)S_(3)@Ti_(3)c_(2)T_(x)@c toward ultra-stable Li-/Na-ion batteries

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Rare Metals 2024年第5期43卷 2067-2079页

作者： Dan Wang Qun ma Huan He Zhi-Yuan Wang Run-Guo Zheng Hong-Yu Sun Yan-Guo Liu chun-Li Liu School of materials Science and Engineering Northeastern UniversityShenyang110819China School of Resources and materials Northeastern University at QinhuangdaoQinhuangdao 066004China Key Laboratory of Dielectric and Electrolyte Functional material Hebei Province Qinhuangdao 066004China Department of Physics and Oxide Research center Hankuk University of Foreign StudiesYongin 17035Korea

Antimony-based materials with high capacities and moderate potentials are promising anodes for lithium-/-sodium-ion ***,their tremendous volume expansion and inferior conductivity lead to poor structural stability and sluggish reaction ***,a doubleconfined nanoheterostructure Sb/Sb_(2)S_(3)@Ti_(3)c_(2)T_(x)@c has been fabricated through a solvothermal method followed by low-temperature heat *** dual protection of“MXene”and“carbon”can better accommodate the volume expansion of Sb/Sb_(2)S_(3).The strong covalent bond(Ti-S,Ti-O-Sb,c-O-Sb)can firmly integrate Sb-based material with Ti_(3)c_(2)T_(x)and carbon,which significantly improves the structure *** addition,the carbon layer can restrain the oxidation of MXenes,and the nano-Sb/Sb_(2)S_(3)can facilitate electron/ion transport and suppress the restacking of *** heterogeneous interface between Sb and Sb_(2)S_(3)can further promote interfacial charge *** MXene-Sb/Sb_(2)S_(3)@c-1 with the optimal Sb content shows high specific capacities,comparable rate properties and ultra-stable cycling performances(250 m Ah·g^(-1)after 2500 cycles at 1 A·g^(-1)for sodium-ion batteries).Ex situ X-ray diffractometer(XRD)test reveals the storage mechanism including the conversion and alloying process of MXene-Sb/Sb_(2)S_(3)@*** voltammetry(cV)test results demonstrate that the pseudocapacitance behavior is dominant in MXene-Sb/Sb_(2)S_(3)@c-1,especially at large *** design paves the way for exploring high-performance alloy-based/conversion-type anode for energy storage devices.

关键词： Sb/Sb_(2)S_(3) MXene carbon Anode Lithium-ion batteries Sodium-ion batteries

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VSe_(2)/V_(2)c heterocatalyst with built-in electric field for efficient lithium-sulfur batteries:Remedies polysulfide shuttle and conversion kinetics

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Journal of Energy chemistry 2024年第2期89卷 397-409,I0010页

作者： Yanwei Lv Lina Bai Qi Jin Siyu Deng Xinzhi ma Fengfeng Han Juan Wang Lirong Zhang Lili Wu Xitian Zhang Key Laboratory for Photonic and Electronic Bandgap materials Ministry of EducationSchool of Physics and Electronic EngineeringHarbin Normal UniversityHarbin 150025HeilongjiangChina

Lithium sulfur(Li-S)battery is a kind of burgeoning energy storage system with high energy ***,the electrolyte-soluble intermediate lithium polysulfides(Li PSs)undergo notorious shuttle effect,which seriously hinders the commercialization of Li-S ***,a unique VSe_(2)/V_(2)c heterostructure with local built-in electric field was rationally engineered from V_(2)c parent via a facile thermal selenization *** exquisitely synergizes the strong affinity of V_(2)c with the effective electrocatalytic activity of VSe_(2).More importantly,the local built-in electric field at the heterointerface can sufficiently promote the electron/ion transport ability and eventually boost the conversion kinetics of sulfur *** Li-S battery equipped with VSe_(2)/V_(2)c-cNTs-PP separator achieved an outstanding initial specific capacity of 1439.1 m A h g^(-1)with a high capacity retention of 73%after 100 cycles at0.1 *** impressively,a wonderful capacity of 571.6 ma h g^(-1)was effectively maintained after 600cycles at 2 c with a capacity decay rate of 0.07%.Even under a sulfur loading of 4.8 mg cm^(-2),areal capacity still can be up to 5.6 m A h cm^(-2).In-situ Raman tests explicitly illustrate the effectiveness of VSe_(2)/V_(2)c-cNTs modifier in restricting Li PSs *** with density functional theory calculations,the underlying mechanism of VSe_(2)/V_(2)c heterostructure for remedying Li PSs shuttling and conversion kinetics was *** strategy of constructing VSe_(2)/V_(2)c heterocatalyst in this work proposes a universal protocol to design metal selenide-based separator modifier for Li-S ***,it opens an efficient avenue for the separator engineering of Li-S batteries.

关键词： Li-S battery Shuttle effect Separator modifier VSe_(2)/V_(2)c heterostructure Built-in electric field

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DLX3(Q178R)mutation delays osteogenic differentiation via H19/miR-29c-3p/KDM5B axis in TDO-iPScs-derived MScs

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Genes & Diseases 2024年第4期11卷 49-52页

作者： Liying Dong Na Zhao Dongmei Wang Meng Wang Yixin Zhang Liangjie Sun chong Ding Yixiang Wang Zeyun ma central Laboratory Peking University School and Hospital of StomatologyBeijing 100081China Department of Oral and maxillofacial Surgery Peking University School and Hospital of StomatologyBeijing 100081China National Engineering Laboratory for Digital and material Technology of Stomatology Peking University School and Hospital of StomatologyBeijing 100081China Beijing Key Laboratory of Digital Stomatology Peking University School and Hospital of StomatologyBeijing 100081China The Second clinical Division Peking University School and Hospital of StomatologyBeijing 100081China Department of VIP Service Peking University School and Hospital of StomatologyBeijing 100081China Department of Restorative Dentistry and Biomaterials Sciences Harvard School of Dental MedicineBostonMA 02115USA Department of Prosthodontics Fudan UniversityShanghai 200001China Shanghai Key Laboratory of craniomaxillofacial Development and Diseases Shanghai Stomatological HospitalFudan UniversityShanghai 200001China

Tricho-dento-osseous(TDO)syndrome is a rare autosomal dominant disease resulting from distal-less homeobox 3(DLX3)mutation.1,2 Accumulative bone density in alveolar bone is a clinically favorable phenotype for TDO ***... 详细信息

关键词： patients clinically alveolar

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