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Prediction of product roughness,profile,and roundness using machine learning techniques for a hard turning process

Advances in Manufacturing 2021年第2期9卷 206-215页

作者： Chunling Du Choon Lim Ho Jacek Kaminski Advanced Remanufacturing and Technology Center(ARTC) Agency for ScienceTechnology and Research(A*STAR)Singapore

High product quality is one of key demands of customers in the field of manufacturing such as computer numerical control(CNC)*** monitoring and prediction is of great importance to assure high-quality or zero defect *** this work,we consider roughness parameter Ra,profile deviation Pt and roundness deviation RONt of the machined products by a ***,these three parameters are much related to the machine spindle parameters of preload,temperature,and rotations per minute(RPMs),while in this paper,spindle vibration and cutting force are taken as inputs and used to predict the three quality *** spectral density(PSD)based feature extraction,the method to generate compact and well-correlated features,is proposed in details in this *** the efficient features,neural network based machine learning technique turns out to be able to result in high prediction accuracy with R2 score of 0.92 for roughness,0.86 for profile,and 0.95 for roundness.

关键词： Computer numerical control(CNC)machining Quality prediction Roughness parameter Profile deviation Roundness deviation Machine learning

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Towards high-performance and robust anion exchange membranes(AEMs)for water electrolysis:Super-acid-catalyzed synthesis of AEMs

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Journal of Energy Chemistry 2024年第6期93卷 478-510,I0012页

作者： Geun Woong Ryoo Sun Hwa Park Ki Chang Kwon Jong Hun Kang Ho Won Jang Min Sang Kwon Department of Materials Science and Engineering Research Institute of Advanced Materials(RIAM)Seoul National UniversitySeoul 08826Republic of Korea Interdisciplinary Materials Measurement Institute Korea Research Institute of Standards and Science(KRISS)Daejeon 34113Republic of Korea Department of Chemical and Biological Engineering and Institute of Chemical ProcessSeoul National UniversitySeoul 08826Republic of Korea Department of Applied Measurement Science University of Science and TechnologyDaejeon 34113Republic of Korea

The increasing demand for hydrogen energy to address environmental issues and achieve carbon neutrality has elevated interest in green hydrogen production,which does not rely on fossil *** various hydrogen production technologies,anion exchange membrane water electrolyzer(AEMWE)has emerged as a next-generation technology known for its high hydrogen production efficiency and its ability to use non-metal ***,this technology faces significant challenges,particularly in terms of the membrane durability and low ionic *** address these challenges,research efforts have focused on developing membranes with a new backbone structure and anion exchange groups to enhance durability and ionic ***,the super-acid-catalyzed condensation(SACC)synthesis method stands out due to its user convenience,the ability to create high molecular weight(MW)polymers,and the use of oxygen-tolerant organic *** the synthesis of anion exchange membranes(AEMs)using the SACC method began in 2015,and despite growing interest in this synthesis approach,there remains a scarcity of review papers focusing on AEMs synthesized using the SACC *** review covers the basics of SACC synthesis,presents various polymers synthesized using this method,and summarizes the development of these polymers,particularly their building blocks including aryl,ketone,and anion exchange *** systematically describe the effects of changes in the molecular structure of each polymer component,conducted by various research groups,on the mechanical properties,conductivity,and operational stability of the *** review will provide insights into the development of AEMs with superior performance and operational stability suitable for water electrolysis applications.

关键词： Green hydrogen production Water electrolysis Anion exchange membrane water electrolyzer(AEMWE) Anion exchange membranes(AEMs) Super-acid-catalyzed condensation(SACC)

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The criterion of anomalous slip at OK in body centered cubic metals

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Tungsten 2023年第1期5卷 160-168页

作者： Zhen-Jun Zhang Shuang-Li Lu Jin-Bo Yang Zhe-Feng Zhang Shi-Changxu Innovation Center for Advanced Materials Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China School of Materials Science and Engineering University of Science and Technology of ChinaHefei 230026China

It is generally accepted that anomalous slip(AS) takes place by hexagonal dislocation networks(HDNs) in body centered cubic(BCC) metals,but the role of the HDN formation process in AS has rarely been investigated so *** this work,the critical yield conditions of the HDNs and isolated dislocations were first calculated,respectively,by molecular statics simulations in two BCC *** on these data,a novel mechanism,entitled as the "conjugated dislocation sources"(CDS),to analyze the formation of the HDNs was proposed for the first time and then incorporated into the criterion of the occurrence of *** prediction is in agreement with experimental *** to previous study,it has been revealed that the multiplication of isolated screw dislocations involved in AS has to be considered for correctly understanding the AS origin.

关键词： Anomalous slip Hexagonal dislocation network Body centered cubic metal Yield criterion

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Cognitive Model of Listener Response Generation and Its Application to Dialogue Systems 20

Cognitive Model of Listener Response Generation and Its Appl...

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20th Annual Meeting of the Young researchers' Roundtable on Spoken Dialogue Systems, YRRSDS 2024

作者： Mori, Taiga National Institute of Advanced Industrial Science and Technology AI Research Center Tokyo Japan Chiba University Chiba Japan

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Metasurface-enabled single-shot isotropic differential interference contrast (DIC) microscopy 10

Metasurface-enabled single-shot isotropic differential inter...

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Quantitative Phase Imaging X 2024

作者： Wang, Xinwei Ding, Xumin Advanced Microscopy and Instrumentation Research Center School of Instrumentation Science and Engineering Harbin Institute of Technology Harbin150080 China

ISBN: (纸本)9781510669635

Differential interference contrast (DIC) microscopy plays an important role in biological sample imaging, with the merit of high contrast, low phototoxicity and no fluorescent label required. Commercial DIC microscopy using Nomarski or Wollaston prism is based on the interference of two polarized waves with the lateral differential offset (shear) and axial phase-shift (bias). However, the shear generated by these prisms is limited to the rectilinear direction, unfortunately resulting in anisotropic contrast imaging. Here we propose an ultracompact metasurface-assisted isotropic DIC (i-DIC) microscopy, that converts the rectilinear shear into rotationally symmetric along radial direction, enabling single-shot isotropic imaging capabilities. The i-DIC presents a complementary fusion of typical meta-optics and traditional microscopes, and showcases the promising and synergetic advancements in edge detection, particle motion tracking, and label-free cellular imaging. © COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.

关键词： Edge detection

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Multi boron-doping effects in hard carbon toward enhanced sodium ion storage

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Journal of Energy Chemistry 2025年第1期100卷 730-738页

作者： Peng Zheng Wang Zhou Ying Mo Biao Zheng Miaomiao Han Qin Zhong Wenwen Yang Peng Gao Lezhi Yang Jilei Liu College of Materials Science and Engineering Hunan Joint International Laboratory of Advanced Materials and Technology for Clean EnergyHunan Province Key Laboratory for Advanced Carbon Materials and Applied TechnologyHunan UniversityChangsha 410082HunanChina Greater Bay Area Institute for Innovation Hunan UniversityGuangzhou 511300GuangdongChina Changsha Research Institute of Mining&Metallurgy Co. LTD.Changsha 410017HunanChina

Hard carbon (HC) has been considered as promising anode material for sodium-ion batteries (SIBs).The optimization of hard carbon’s microstructure and solid electrolyte interface (SEI) property are demonstrated effective in enhancing the Na+storage capability,however,a one-step regulation strategy to achieve simultaneous multi-scale structures optimization is highly ***,we have systematically investigated the effects of boron doping on hard carbon’s microstructure and interface chemistry.A variety of structure characterizations show that appropriate amount of boron doping can increase the size of closed pores via rearrangement of carbon layers with improved graphitization degree,which provides more Na+storage ***-situ Fourier transform infrared spectroscopy/electrochemical impedance spectroscopy (FTIR/EIS) and X-ray photoelectron spectroscopy (XPS) analysis demonstrate the presence of more BC3and less B–C–O structures that result in enhanced ion diffusion kinetics and the formation of inorganic rich and robust SEI,which leads to facilitated charge transfer and excellent rate *** a result,the hard carbon anode with optimized boron doping content exhibits enhanced rate and cycling *** general,this work unravels the critical role of boron doping in optimizing the pore structure,interface chemistry and diffusion kinetics of hard carbon,which enables rational design of sodium-ion battery anode with enhanced Na+storage performance.

关键词： Hard carbon Sodium-ion batteries Boron doping Pore structure Electrode/electrolyte interphases

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Hybrid ionic/electronic interphase enabling uniform nucleation and fast diffusion kinetics for stable lithium metal anode

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Chinese Chemical Letters 2024年第2期35卷 626-633页

作者： Lun Li Pengxia Ji Meng Huang Zixin Zhang Hong Wang Francis Verpoort Jinlong Yang Daping He State Key Laboratory of Advanced Technology for Materials Synthesis and Processing School of Materials Science and EngineeringWuhan University of TechnologyWuhan 430070China Guangdong Research Center for Interfacial Engineering of Functional Materials College of Materials Science and EngineeringShenzhen UniversityShenzhen 518060China Sanya Science and Education Innovation Park of Wuhan University of Technology Sanya 572000China Hubei Engineering Research Center of RF-Microwave Technology and Application Wuhan University of TechnologyWuhan 430070China State Key Laboratory of Silicate Materials for Architectures Wuhan University of TechnologyWuhan 430070China

Lithium(Li)dendrite issue,which is usually caused by inhomogeneous Li nucleation and fragile solid electrolyte interphase(SEI),impedes the further development of high-energy Li metal ***,the integrated construction of a high-stable SEI layer that can regulate uniform nucleation and facilitate fast Li-ion diffusion kinetics for Li metal anode still falls ***,we designed an artificial SEI with hybrid ionic/electronic interphase to regulate Li deposition by in-situ constructing metal Co clusters embedded in LiF *** generated Co and LiF both enable fast Li-ion diffusion kinetics,meanwhile,the lithiophilic properties of Co clusters can serve as Li-ion nucleation sites,thereby contributing to uniform Li nucleation and non-dendritic *** a result,a dendrite-free Li deposition with a low overpotential(16.1 mV)is achieved,which enables an extended lifespan over 750 h under strict *** full cells with high-mass-loading LiFePO_(4)(11.5 mg/cm^(2))as cathodes exhibit a remarkable rate capacity of 84.1 mAh/g at 5 C and an improved cycling performance with a capacity retention of 96.4%after undergoing 180 cycles.

关键词： Lithium metal anode Hybrid ionic/electronic interphase Solid electrolyte interphase Fast diffusion kinetics Dendritic growth of lithium

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One-core neuron deep learning for time series prediction

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国家科学评论（英文版） 2025年第2期12卷 309-322页

作者： Hao Peng Pei Chen Na Yang Kazuyuki Aihara Rui Liu Luonan Chen School of Mathematics South China University of TechnologyGuangzhou 510640China School of Future Technology South China University of TechnologyGuangzhou 511442China School of Mathematics South China University of TechnologyGuangzhou 510640China International Research Center for Neurointelligence The University of Tokyo Institutes for Advanced StudyThe University of TokyoTokyo 113-0033Japan Key Laboratory of Systems Health Science of Zhejiang Province School of Life ScienceHangzhou Institute for Advanced StudyUniversity of Chinese Academy of SciencesChinese Academy of SciencesHangzhou 310024China Key Laboratory of Systems Biology Shanghai Institute of Biochemistry and Cell BiologyCenter for Excellence in Molecular Cell ScienceChinese Academy of SciencesShanghai 200031China Guangdong Institute of Intelligence Science and Technology Zhuhai 519031China

The enormous computational requirements and unsustainable resource consumption associated with massive parameters of large language models and large vision models have given rise to challenging ***,we propose an interpretable'small model'framework characterized by only a single core-neuron,*** one-core-neuron system(OCNS),to significantly reduce the number of parameters while maintaining performance comparable to the existing'large models'in time-series *** multiple delay feedback designed in this single neuron,our OCNS is able to convert one input feature vector/state into one-dimensional time-series/sequence,which is theoretically ensured to fully represent the states of the observed dynamical *** the spatiotemporal information transformation,the OCNS shows excellent and robust performance in forecasting tasks,in particular for short-term high-dimensional *** results collectively demonstrate that the proposed OCNS with a single core neuron offers insights into constructing deep learning frameworks with a small model,presenting substantial potential as a new way for achieving efficient deep learning.

关键词： spatiotemporal information(STI)transformation one-core-neuron(OCN) small model deep learning time-series prediction large model

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Effects of Nitrogen Doping on Microstructures and Irradiation Resistance of Ti-Zr-Nb-V-Mo Refractory High-Entropy Alloy

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Acta Metallurgica Sinica(English Letters) 2024年第6期37卷 1007-1018页

作者： Huanzhi Zhang Tianxin Li Qianqian Wang Zhenbo Zhu Hefei Huang Yiping Lu Engineering Research Center of High Entropy Alloy Materials(Liaoning Province) School of Materials Science and EngineeringDalian University of TechnologyDalian116024China Shanghai Institute of Applied Physics Chinese Academy of Sciences(CAS)Shanghai201800China

Interstitial strengthening with nitrogen(N)is one of the effective ways to improve the mechanical properties of HEAs,but the effects of N on the microstructures and mechanical properties of the irradiated HEAs have not been studied ***,the microstructures and mechanical properties of N-free and N-doped Ti_(2)ZrNbV_(0.5)Mo_(0.2)HEAs before and after He irradiation were *** results showed that the solid solution strengthening caused by interstitial N improved the yield strength at room temperature and 1023 K without significantly reducing plasticity.N doping significantly promoted the growth,aggregation and wider spatial distribution of He bubbles by enhancing the mobility of He atoms/He-vacancy complexes,with the average size of He bubbles increasing from 10.4 nm in N-free HEA to 31.0 nm in N-doped *** addition,N-doped HEA showed a much higher irradiation hardness increment and hardening fraction than N-free *** to conventional materials doped with N,the introduction of N into Ti_(2)ZrNbV_(0.5)Mo_(0.2)HEA had adverse effects on its resistance to He bubble growth and irradiation *** results of this study indicated that N doping may not improve the irradiation resistance of HEAs.

关键词： High-entropy alloys Nitrogen doping Mechanical properties Helium bubbles Irradiation resistance

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Durable Acidic Oxygen Evolution Via Self-Construction of Iridium Oxide/Iridium-Tantalum Oxide Bi-Layer Nanostructure with Dynamic Replenishment of Active Sites

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纳微快报（英文版） 2025年第7期17卷 270-284页

作者： Qi Guo Rui Li Yanan Zhang Qiqin Zhang Yi He Zhibin Li Weihong Liu Xiongjun Liu Zhaoping Lu Institute of Clean Energy Yangtze River Delta Research InstituteNorthwestern Polytechnical UniversityXi'an 710072People's Republic of China Beijing Advanced Innovation Center for Materials Genome Engineering State Key Laboratory for Advanced Metals and MaterialsUniversity of Science and Technology BeijingBeijing 100083People's Republic of China School of Materials Science and Engineering Harbin Institute of Technology ShenzhenShenzhen 518055People's Republic of China

Proton exchange membrane(PEM)water electrolysis presents considerable advantages in green hydrogen ***,oxygen evolution reaction(OER)catalysts in PEM water electrolysis currently encounter several pressing challenges,including high noble metal loading,low mass activity,and inadequate durability,which impede their practical application and *** we report a self-constructed layered catalyst for acidic OER by directly using an Ir-Ta-based metallic glass as the matrix,featuring a nanoporous IrO2 surface formed in situ on the amorphous IrTaOx nanostructure during *** distinctive architecture significantly enhances the accessibility and utilization of Ir,achieving a high mass activity of 1.06 A mgIr-1 at a 300 mV overpotential,13.6 and 3 1.2 times greater than commercial Ir/C and IrO2,*** cata-lyst also exhibits superb stability under industrial-relevant current densities in acid,indicating its potential for practical *** analyses reveal that the coordinated nature of the surface-active Ir species is effectively modulated through electronic interaction between Ir and Ta,preventing them from rapidly evolving into high valence states and suppressing the lattice oxygen ***,the underlying IrTaOx dynamically replenishes the depletion of surface-active sites through inward crystallization and selective dissolution,thereby ensuring the catalyst's long-term durability.

关键词： Self-construction Nanoporous Electronic interaction Replenishment Proton exchange membrane(PEM)water electrolysis

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