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Detecting lithium plating dynamics in a solid-state battery with operando X-ray computed tomography using machine learning

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npj Computational Materials 2023年第1期9卷 1402-1410页

作者： Ying Huang David Perlmutter Andrea Fei-Huei Su Jerome Quenum pavel Shevchenko Dilworth Y.Parkinson Iryna v.Zenyuk Daniela Ushizima Department of Materials Science&Engineering University of California IrvineIrvineCaliforniaUSA National Fuel Cell Research Center University of California IrvineIrvineCaliforniaUSA Applied Math and Computational Research Division Lawrence Berkeley National LaboratoryBerkeleyCaliforniaUSA Department of Chemical&Biomolecular Engineering University of California IrvineIrvineCaliforniaUSA Department of Electrical Engineering and Computer Sciences College of EngineeringUniversity of California BerkeleyBerkeleyCaliforniaUSA Advanced Photon Source Argonne National Laboratory9700 South Cass AvenueLemontIllinoisUSA Advanced Light Source Lawrence Berkeley National LaboratoryBerkeleyCaliforniaUSA Berkeley Institute for Data Science University of California BerkeleyBerkeleyCaliforniaUSA

Operando X-ray micro-computed tomography(µCT)provides an opportunity to observe the evolution of Li structures inside pouch *** is an essential step to quantitatively analyzingµCT datasets but is challenging to achieve on operando Li-metal battery datasets due to the low X-ray attenuation of the Li metal and the sheer size of the ***,we report a computational approach,batteryNET,to train an Iterative Residual U-Net-based network to detect Li *** resulting semantic segmentation shows singular Li-related component changes,addressing diverse morphologies in the *** addition,visualizations of the dead Li are provided,including calculations about the volume and effective thickness of electrodes,deposited Li,and redeposited *** also report discoveries about the spatial relationships between these *** approach focuses on a method for analyzing battery performance,which brings insight that significantly benefits future Li-metal battery design and a semantic segmentation transferrable to other datasets.

关键词： battery lithium state

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Postglacial incision-infill cycles at the Borisoglebsk Upland: Correlations between interfluve headwaters and fluvial network

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International Soil and Water Conservation Research 2019年第2期7卷 184-195页

作者： Yuliya v.Shishkina Ekaterina v.Garankina vladimir R.Belyaev Ilya G.Shorkunov pavel v.Andreev Aleksey I.Bondar viktoria I.Potapova Tatiana A.verlova Faculty of Geography Department of Geomorphology and Palaeogeography and Laboratory for Soil Erosion and Fluvial ProcessesLomonosov Moscow State UniversityLeninskie Gory1Moscow 119991Russia Institute of Geography Department of Soil Geography and EvolutionRussian Academy of SciencesStaromonetnyj Lane29Moscow 119017Russia Institute of Earth Sciences of Saint-Petersburg State University St.PetersburgUniversitetskaya nab.7-9 199034Russia

The article discusses postglacial landscape transformation in the Northern Hemisphere Middle Pleistocene glaciation area located in the center of the Russian *** attempted to verify the regional paleogeographic model by reconstructing the Late Pleistocene incision-infill cycles at the Eastern Borisoglebsk Upland based on a comparison of inactive interfluves headwaters and actual fluvial network *** study was also aimed to determine the past extent of fluvial *** research of the actual and buried topography,Ethology and pedogenic properties of surface deposits was carrid out with remote sensing data interpretation,DGPS survey,and detailed description of geological cores *** study was followed by analysis of grain size,chemical and organic contents,microstructure,and numerical *** the available results,we propose a scenario of the fluvial network transformation at the Eastem Borisoglebsk Upland over the last 150 *** least four fluvial incision stages were determined while network extent has significantly changed through the Late *** can be generally associated with the regional base level decrease-Late Moscow,Late valdai and Late Holocene and accompanying isolation of the Nero Lake terraces of 130 m,100-105 m and 95-98 *** stages were separated by landscape stability or aggradation periods those were asynchronous at the middle and upper parts of the fluvial *** main agent of initial valley infill appears to be local lacustrine sedimentation altered by alluvial and colluvial deposition towards the second half of *** landscape conditions variability emphasize the importance of comprehensive local correlations for regional retrospective models.

关键词： Interfluve headwaters Fluvial Incision-Infill Cycle Pleistocene

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Monoribbed-Functionalized Macrobicyclic Iron(Ⅱ) Complexes Decorated with Terminal Reactive and vector Groups: Synthetic Strategy, Chemical Transformations and Structural Characterization

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Chinese Journal of Chemistry 2022年第17期40卷 2089-2105页

作者： Ilya P.Limarev Genrikh E.Zelinskii Svetlana A.Belova pavel v.Dorovatovskii Anna v.vologzhanina Ekaterina G.Lebed Yan Z.voloshin Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences 28 Vavilova stMoscow119991 Russia Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences 31 Leninsky prMoscow119991 Russia National Research Center Kurchatov Institute 1 Kurchatova plMoscow123098 Russia

General and straightforward synthetic strategy towards the iron(Ⅱ)clathrochelates with functionalizing substituents in their apical capping and one of the three chelate ribbed fragments was *** hexachloroclathrochelate precursors were prepared by the direct template condensation of dichloroglyoxime with a suitable boronic acid on the Fe^(2+) ion as a matrix and underwent a stepwise nucleophilic substitution with S_(2)-,N_(2)- or O_(2)-bis-nucleophiles,forming the alicyclic or aromatic N_(2)-,S_(2)-or O_(2)-six-membered *** on the reaction conditions and precursor-to-dinucleophile molar ratios,iron(Ⅱ)clathrochelates with one(S,O and N),two(S,O and N)or three(S and O)X_(2)-six-membered ribbed substituent(s)were *** reactivity substantially decreases in a row:Cl_(6)-Cage>Cl_(4)X_(2)-Cage(where X=S,O or,especially,N)>Cl_(2)X_(4)-Cage(where X=S or O).The reactive monoribbed-functionalized clathrochelates underwent further chemical transformations giving the target macrobicyclic complexes with terminal vector *** follows from the single crystal XRD data,their FeN_(6)-coordination polyhedra possess the geometry intermediate between a trigonal prism and a trigonal antiprism(φ=21.3°—25.20°).Fe-N distances vary from 1.887(6)to 1.933(8)Å.Their 3D-molecules,the hydrophobic–hydrophilic balance in which can be tuned using a ribbed functionalization,form in the crystals the intermolecular specific halogen bonds and/or hydrophobic interactions.

关键词： Macrocyclic compounds Clathrochelates Iron complexes Ligand reactivity Targetdelivery

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Cerium dioxide as a new reactive sorbent for fast degradation of parathion methyl and some other organophosphates

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Journal of Rare Earths 2014年第4期32卷 360-370页

作者： pavel Janos pavel Kuran Martin Kormunda vaclav Stengl Tomas Matys Grygar Marek Dosek Martin Stastny Jakub Ederer vera Pilarova Lubos vrtoch Faculty of the Environment University of Jan Evangelista Purkyne Faculty of Science University of Jan Evangelista Purkyne Institute of Inorganic Chemistry AS CR v.v.i.

Cerium dioxide was used for the first time as reactive sorbent for the degradation of the organophosphate pesticides para-thion methyl, chlorpyrifos, dichlofenthion, fenchlorphos, and prothiofos, as well as of some chemical warfare agents-nerve gases soman and O-ethyl S-[2-（diisopropylamino） ethyl] methylphosphonothioate （vX）. CeO2 specimens were prepared by calcination of basic cerous carbonate obtained by precipitation from an aqueous solution. The CeO2 samples containing certain amounts （1 wt.%-5 wt.%） of the neighboring lanthanides （La, Pr, Nd） were prepared in a similar way from pure lanthanide salts. It was shown that ceria accelerated markedly the decomposition of parathion methyl causing the cleavage of the P-O-aryl bond in the pesticide molecule. A similar reaction mechanism was proposed for the degradation of other organophosphate pesticides and nerve agents. The degradation times （reaction half-times） were in an order of minutes in the presence of CeO2, compared to hours or days under common environ-mental conditions. The reaction in suitable organic solvents allowed conversions of about 90%for parathion methyl loading of 20 mg pesticide/g CeO2 within 2 h with a reactant half-life in the order of 0.1 min. The key parameter governing the degradation efficiency of CeO2 was the temperature during calcination. At optimum calcination temperature （about 773.15 K）, the produced ceria retained a sufficiently high surface area, and attained an optimum degree of crystallinity （related to a number of crystal defects, and thus poten-tial reactive sites）. The presence of other lanthanides somewhat decreased the reaction rate, but this effect was not detrimental and permitted the possible use of chemically impure ceria as a reactive sorbent. A fast organophosphate degradation was demonstrated not only in non-polar solvents （such as heptane）, but also in polar aprotic solvents （acetonitrile, acetone） that are miscible with water. This opens new possibilities for designi

关键词： cerium dioxide carbonate precursor lanthanides organophosphate pesticide parathion methyl chemical warfare agents hydrolysis non-aqueous solvents rare earths

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Potential energy surfaces and fission fragment mass yields of even-even superheavy nuclei

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Chinese Physics C 2021年第12期45卷 155-174页

作者： pavel v.Kostryukov Artur Dobrowolski Bozena Nerlo-Pomorska Michal Warda Zhigang Xiao Yongjing Chen Lile Liu Jun-Long Tian Krzysztof Pomorski Institute of Physics Maria Curie Sklodowska University20-031 LublinPoland Department of Physics Tsinghua UniversityBeijing 100084China Institute of Atomic Energy Beijing 102413China School of Physics and Electrical Engineering Anyang Normal UniversityAnyang 455000China

Potential energy surfaces and fission barriers of superheavy nuclei are analyzed in a macroscopic-microscopic *** Lublin-Strasbourg Drop(LSD)model is used to obtain the macroscopic part of the energy,whereas the shell and pairing energy corrections are evaluated using the Yukawa-folded potential;a standard flooding technique is utilized to determine barrier heights.A Fourier shape parametrization containing only three deformation parameters is shown to effectively reproduce the nuclear shapes of nuclei approaching *** addition,a non-axial degree of freedom is taken into account to better describe the structure of nuclei around the ground state and in the saddle *** addition to the symmetric fission valley,a new highly asymmetric fission mode is predicted in most superheavy *** fission fragment mass distributions of the considered nuclei are obtained by solving 3D Langevin equations.

关键词： nuclear fission mac-mic model fission barrier heights fragment mass yields

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Disease modifying treatment of spinal cord injury with directly reprogrammed neural precursor cells in non-human primates

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World Journal of Stem Cells 2021年第5期13卷 452-469页

作者： vladimir P Baklaushev Oleg v Durov vladimir A Kalsin Eugene v Gulaev Sergey v Kim Ilya L Gubskiy veronika A Revkova Ekaterina M Samoilova pavel A Melnikov Dzhina D Karal-Ogly Sergey v Orlov Alexander v Troitskiy vladimir P Chekhonin Alexander v Averyanov Jan-Eric Ahlfors Biomedical Research Federal Research and Clinical Center of Specialized Medical Care and Medical TechnologiesFMBA of RussiaMoscow 115682MoskvaRussia Department of Neurosurgery Federal Research and Clinical Center of Specialized Medical Care and Medical TechnologiesFMBAMoscow 115682MoskvaRussia Department of Anesthesiology N.N.Blokhin Russian Cancer Research CentreMoscow 115478MoskvaRussia Radiology and Clinical Physiology Scientific Research Center Federal center of brain research and neurotechnologies of the Federal Medical Biological AgencyMoscow 117997Russia Department of Neurobiology Serbsky National Medical Research Center for Psychiatry and NarcologyMoscow 119992MoskvaRussia Department of Primatology Russian Acad Med SciResearch Institute of Medical PrimatologySochi 119992SochiRussia Department of vascular Surgery Federal Research and Clinical Center of Specialized Medical Care and Medical TechnologiesFMBA of RussiaMoscow 115682MoskvaRussia Department of Basic and Applied Neurobiology V.P.Serbsky Federal Medical Research Center for Psychiatry and NarcologyRussia Department of Medical Nanobiotechnology Pirogov Russian National Research Medical University(RNRMU)Moscow 115682MoskvaRussia New World Laboratories Laval H7V 4A7QuebecCanada

BACKGROUND The development of regenerative therapy for human spinal cord injury(SCI)is dramatically restricted by two main challenges:the need for a safe source of functionally active and reproducible neural stem cells and the need of adequate animal models for preclinical *** reprogramming of somatic cells into neuronal and glial precursors might be a promising solution to the first *** use of non-human primates for preclinical studies exploring new treatment paradigms in SCI results in data with more translational relevance to human *** To investigate the safety and efficacy of intraspinal transplantation of directly reprogrammed neural precursor cells(drNPCs).METHODS Seven non-human primates with verified complete thoracic SCI were divided into two groups:drNPC group(n=4)was subjected to intraspinal transplantation of 5 million drNPCs rostral and caudal to the lesion site 2 wk post injury,and lesion control(n=3)was injected identically with the equivalent volume of *** Follow-up for 12 wk revealed that animals in the drNPC group demonstrated a significant recovery of the paralyzed hindlimb as well as recovery of somatosensory evoked potential and motor evoked potential of injured *** resonance diffusion tensor imaging data confirmed the intraspinal transplantation of drNPCs did not adversely affect the morphology of the central nervous system or cerebrospinal fluid *** immunohistochemical analysis showed that drNPCs maintained SOX2 expression characteristic of multipotency in the transplanted spinal cord for at least 12 wk,migrating to areas of axon growth *** Our data demonstrated that drNPC transplantation was safe and contributed to improvement of spinal cord function after acute SCI,based on neurological status assessment and neurophysiological recovery within 12 wk after *** functional improvement described was not associated with neuronal differentiation of th

关键词： Direct cell reprogramming Neural precursor cells Directly reprogrammed neural precursor cells Spinal cord injury Nonhuman primates Regenerative therapy,Evoked potentials

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碱激发水泥的类型与特点(英文)

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硅酸盐学报 2012年第1期40卷 69-75页

作者：史才军何富强 A.FERNANDEZ-JIMIENEZ v.pavel KRIvENKO Angel PALOMO 湖南大学土木工程学院长沙410082 厦门理工学院土木工程与建筑系厦门361024 Eduardo Torroja Institute Consejo Superior de Investigaciones Cientificas c/Serrano Galvache s/n28033 MadridSpain Kiev National University of Civil Engineering and Architecture 31Vozdukhoflotskii prospectPO Box 161 Kiev 03037Ukraine

基于所含胶凝组份的成分,可以将碱激发水泥分成5种类型:1)碱激发矿渣水泥;2)碱激发波特兰复合水泥;3)碱激发火山灰水泥;4)碱激发石灰-火山灰/矿渣水泥;5)碱激发铝酸钙复合水泥,每种类型碱激发水泥包含几种胶凝体系。综述了这5种碱激发... 详细信息

基于所含胶凝组份的成分,可以将碱激发水泥分成5种类型:1)碱激发矿渣水泥;2)碱激发波特兰复合水泥;3)碱激发火山灰水泥;4)碱激发石灰-火山灰/矿渣水泥;5)碱激发铝酸钙复合水泥,每种类型碱激发水泥包含几种胶凝体系。综述了这5种碱激发水泥的成分和特征。

关键词：碱激发水泥特性微结构耐久性

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Circle of life:the common hamster(Cricetus cricetus)adaptations to the urban environment

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Integrative Zoology 2019年第4期14卷 383-395页

作者： Alexey v.SUROv Elena A.ZAYTSEvA Alexandr v.KUPTSOv Elena A.KATZMAN pavel L.BOGOMOLOv Alexandra S.SAYAN Ekaterina v.POTASHNIKOvA Nikolay N.TOvPINETZ Ekaterina v.KUZNETSOvA Alexey Y.TSELLARIUS Natalia Y.FEOKTISTOvA Severtsov Institute of Ecology and Evolution Russian Academy of SciencesMoscowRussia Centre of Hygiene and Epidemiology in Crimea and in the Municipal City Sevastopol SimferopolRussia

Traditionally,urbanization has been seen as a negative phenomenon for ***,changes in the environmental parameters induced by urbanization might be favorable for some *** the past half-century,the common hamster has actively populated cities,establishing populations in some European,Russian and Kazakhstan *** on integrative methods,we investigated free-range common hamsters inhabiting Simferopol from 2015 to 2018 to reveal possible adaptations to the urbanized environment across several parameters,including lifespan,hibernation period,reproductive activity and body *** show that in urban areas,the common hamster demonstrates an extremely short hibernation period compared to other localities,possibly due to enhanced food resources from urban forestry(walnuts,locus and hazelnut),allowing the species to start breeding very early(February)and finish as late as *** present the first evidence of polyandry for this species:mating of receptive females with several males and subsequent confirmation of multiple *** high reproductive potential,the lifespan of the common hamster in urban conditions is generally very short(less than 1 year).We speculate that in the process of synurbization,the common hamster’s innate plasticity across many life history traits permits it to successfully colonize throughout a wide range of habitats,with the ability to form novel adaptations to urban environments.

关键词： body mass hibernation lifespan multiple paternity synurbization

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Distinct gut microbiota profiles in patients with primary sclerosing cholangitis and ulcerative colitis

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World Journal of Gastroenterology 2017年第25期23卷 4548-4558页

作者： Lukas Bajer Miloslav Kverka Martin Kostovcik Peter Macinga Jiri Dvorak Zuzana Stehlikova Jan Brezina pavel Wohl Julius Spicak pavel Drastich Department of Gastroenterology and Hepatology Institute for Clinical and Experimental Medicine Institute of Microbiology the Czech Academy of Sciences Institute of Experimental Medicine the Czech Academy of Sciences Department of Genetics and Microbiology Faculty of ScienceCharles University BIOCEv Institute of Microbiologythe Czech Academy of Sciences

To characterize the gut bacterial microbiota of patients with primary sclerosing cholangitis (PSC) and ulcerative colitis (UC). METHODSStool samples were collected and relevant clinical data obtained from 106 study participants, 43 PSC patients with (n = 32) or without (n = 11) concomitant inflammatory bowel disease, 32 UC patients, and 31 healthy controls. The v3 and v4 regions of the 16S ribosomal RNA gene were sequenced on Illumina MiSeq platform to cover low taxonomic levels. Data were further processed in QIIME employing MaAsLin and LEfSe tools for analysis of the output data. RESULTSMicrobial profiles in both PSC and UC were characterized by low bacterial diversity and significant change in global microbial composition. Rothia, Enterococcus, Streptococcus, veillonella, and three other genera were markedly overrepresented in PSC regardless of concomitant inflammatory bowel disease (IBD). Rothia, veillonella and Streptococcus were tracked to the species level to identify Rothia mucilaginosa, Streptococcus infantus, S. alactolyticus, and S. equi along with veillonella parvula and v. dispar. PSC was further characterized by decreased abundance of Adlercreutzia equolifaciens and Prevotella copri. Decrease in genus Phascolarctobacterium was linked to presence of colonic inflammation regardless of IBD phenotype. Akkermansia muciniphila, Butyricicoccus pullicaecorum and Clostridium colinum were decreased in UC along with genus Roseburia. Low levels of serum albumin were significantly correlated with enrichment of order Actinomycetales. CONCLUSIONPSC is associated with specific gut microbes independently of concomitant IBD and several bacterial taxa clearly distinguish IBD phenotypes (PSC-IBD and UC).

关键词： Dysbiosis Inflammatory bowel disease Ulcerative colitis Gut microbiota Primary sclerosing cholangitis

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Speckle backpropagation for compensation of nonlinear effects in few-mode optical fibers

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Chinese Optics Letters 2023年第3期21卷 24-28页

作者： pavel S.Anisimov Evgeny D.Tsyplakov viacheslav v.Zemlyakov 高杰星 Central Research Institute 2012 LabsHuawei TechnologiesShenzhen 518129China

We propose an alternative approach to compensation of intermodal interactions in few-mode optical fibers by means of digital *** of solving the inverse generalized multimode nonlinear Schr?dinger equation,we accomplish backpropagation of the multimode signals with help of their near-field intensity distributions captured by a *** demonstrate that this task can successfully be handled by a deep neural network and provide a proof of concept by training an autoencoder for backpropagation of six linearly polarized[LP]modes of a step-index fiber.

关键词： optical fibers multimode fibers few-mode fibers digital signal processing space division multiplexing mode division multiplexing mode decomposition

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