Intelligent manufacturing is represented by a deep integration of advanced information and communication technologies and advanced manufacturing technologies.It runs through the whole life-cycle of product design,manu...Intelligent manufacturing is represented by a deep integration of advanced information and communication technologies and advanced manufacturing technologies.It runs through the whole life-cycle of product design,manufacturing,services,and recycling.The intelligent product is the center of intelligent manufacturing,while the intelligent production is the main activity and an intelligent service-centered industrial mode is the theme.With intelligent manufacturing,manufacturing systems become increasingly agile,with higher quality and efficiency,personalized customization,and environmental sustainability.Intelligent manufacturing technology is becoming a major trend in the development of the manufacturing industry around the world.展开更多
Intelligent manufacturing is the development trend of manufac-turing industries.It comprises the deep integration of new-genera-tion information and communication technologies(i.e.,fifth generation mobile networks(5G)...Intelligent manufacturing is the development trend of manufac-turing industries.It comprises the deep integration of new-genera-tion information and communication technologies(i.e.,fifth generation mobile networks(5G),artificial intelligence,the Indus-trial Internet,etc.)with advanced manufacturing technologies,covering the whole life cycle of a product,including design,pro-duction,logistics,services,and so forth.Although it is largely based on automation and machine intelligence,humans play essential roles in intelligent manufacturing.展开更多
This special issue of Engineering contains six papers, including one research paper, one perspective paper, and four review papers, that have been contributed by influential experts from four countries. These papers f...This special issue of Engineering contains six papers, including one research paper, one perspective paper, and four review papers, that have been contributed by influential experts from four countries. These papers focus on recent advances in a wide variety of intelligent manufacturing fields, such as controlling methods and strategy.展开更多
Intelligent manufacturing is a type of manufacturing that adopts computer-integrated manufacturing, high-level adaptability and rapid design personalization, system reconfiguration, the digitalization of manufacturing...Intelligent manufacturing is a type of manufacturing that adopts computer-integrated manufacturing, high-level adaptability and rapid design personalization, system reconfiguration, the digitalization of manufacturing processes and resources, and flexible and organized technical labor training. This Special Issue focuses on the application of advanced information and communication technologies—such as artificial intelligence (AI), advanced topology optimization methods, edge computing, cloud computing, 5G networks, the Industrial Internet, and the Internet of Things—to address problems that arise during the design, materials and manufacturing, logistics, and services associated with intelligent manufacturing. In this issue, we present eight articles contributed by scholars and experts from countries around the world, including China, Sweden, the United Kingdom, and New Zealand. The published works examine intelligent manufacturing, with a particular focus on the phases of engineering design and materials and manufacturing.展开更多
Single-and few-layer chromium triiodide(CrI_(3)),which has been intensively investigated as a promising platform for two-dimensional magnetism,is usually prepared by the mechanical exfoliation.Here,we report direct gr...Single-and few-layer chromium triiodide(CrI_(3)),which has been intensively investigated as a promising platform for two-dimensional magnetism,is usually prepared by the mechanical exfoliation.Here,we report direct growth of single-layer CrI_(3)using molecular beam epitaxy in ultrahigh vacuum.Scanning tunneling microscopy(STM),together with density functional theory(DFT)calculation,revealed that the iodine trimers,each of which consists of three I atoms surrounding a three-fold Cr honeycomb center,are the basic units of the topmost I layer.Different superstructures of single-layer CrI3 with periodicity around 2–4 nm were obtained on Au(111),while only the 1×1 structure was observed on the graphite substrate.At an elevated temperature of 423 K,single-layer CrI3 began to decompose and transformed into single-layer chromium diiodide.Our bias-dependent STM images suggest that the unoccupied and occupied states are spatial-separately distributed,consistent with the results of our DFT calculation.We also discussed the role of charge distribution in the super-exchange interactions among Cr atoms in single-layer CrI3.展开更多
The family of vanadium chalcogenides with variable stoichiometry and abundant crystallographic structures are promising platforms for realizing exotic emergent phenomena.Here,we report on a novel two-dimensional(2D)te...The family of vanadium chalcogenides with variable stoichiometry and abundant crystallographic structures are promising platforms for realizing exotic emergent phenomena.Here,we report on a novel two-dimensional(2D)tetragonal structure of vanadium telluride(VTe)grown by molecular beam epitaxy.The atomic structures and electronic properties are revealed by scanning tunneling microscopy and first-principles calculations.Different from the hexagonal or trigonal lattices of 2D VTe_(2),the 2D VTe with a V:Te ratio of 1:1 exhibits an uncommon square lattice.Non-zero differential conductivity at the Fermi energy detected by scanning tunneling spectroscopy reveals the metallic feature of VTe.Meanwhile,Friedel oscillations are observed near chiral point defects and domain walls,illustrating the itinerant nature of the electrons close to the Fermi energy.Our firstprinciples structure searches identify a 2D body-centered cubic(bcc)-like structure with a favorable formation energy to be the candidate of the metallic phase of the tetragonal VTe obtained experimentally.Based on our calculations the 2D bcc-like structure possesses a strong 2D antiferromagnetic order.Our work enriches the family of vanadium chalcogenides and provides a possible 2D antiferromagnetic material for fabricating advanced spintronic devices.展开更多
文摘Intelligent manufacturing is represented by a deep integration of advanced information and communication technologies and advanced manufacturing technologies.It runs through the whole life-cycle of product design,manufacturing,services,and recycling.The intelligent product is the center of intelligent manufacturing,while the intelligent production is the main activity and an intelligent service-centered industrial mode is the theme.With intelligent manufacturing,manufacturing systems become increasingly agile,with higher quality and efficiency,personalized customization,and environmental sustainability.Intelligent manufacturing technology is becoming a major trend in the development of the manufacturing industry around the world.
文摘Intelligent manufacturing is the development trend of manufac-turing industries.It comprises the deep integration of new-genera-tion information and communication technologies(i.e.,fifth generation mobile networks(5G),artificial intelligence,the Indus-trial Internet,etc.)with advanced manufacturing technologies,covering the whole life cycle of a product,including design,pro-duction,logistics,services,and so forth.Although it is largely based on automation and machine intelligence,humans play essential roles in intelligent manufacturing.
文摘This special issue of Engineering contains six papers, including one research paper, one perspective paper, and four review papers, that have been contributed by influential experts from four countries. These papers focus on recent advances in a wide variety of intelligent manufacturing fields, such as controlling methods and strategy.
基金the National Key Research and Development Programof China(2020YFB1708300)NationalNatural Science Foundation of China(52075184)+1 种基金Natural Science Foundation of Hubei Province(2019CFA059)Tencent XPLORER PRIZE.
文摘Intelligent manufacturing is a type of manufacturing that adopts computer-integrated manufacturing, high-level adaptability and rapid design personalization, system reconfiguration, the digitalization of manufacturing processes and resources, and flexible and organized technical labor training. This Special Issue focuses on the application of advanced information and communication technologies—such as artificial intelligence (AI), advanced topology optimization methods, edge computing, cloud computing, 5G networks, the Industrial Internet, and the Internet of Things—to address problems that arise during the design, materials and manufacturing, logistics, and services associated with intelligent manufacturing. In this issue, we present eight articles contributed by scholars and experts from countries around the world, including China, Sweden, the United Kingdom, and New Zealand. The published works examine intelligent manufacturing, with a particular focus on the phases of engineering design and materials and manufacturing.
基金financially supported by the National Natural Science Foundation of China(11974431,11832019,11622437,61674171 and 11974422)Guangzhou Science and Technology Project(201707020002)+2 种基金the Strategic Priority Research Program of Chinese Academy of Sciences(XDB30000000)the Fundamental Research Funds for the Central Universities and the Research Funds of Renmin University of China(16XNLQ01)supported by the Outstanding Innovative Talents Cultivation Funded Programs 2017 of Renmin University of China。
文摘Single-and few-layer chromium triiodide(CrI_(3)),which has been intensively investigated as a promising platform for two-dimensional magnetism,is usually prepared by the mechanical exfoliation.Here,we report direct growth of single-layer CrI_(3)using molecular beam epitaxy in ultrahigh vacuum.Scanning tunneling microscopy(STM),together with density functional theory(DFT)calculation,revealed that the iodine trimers,each of which consists of three I atoms surrounding a three-fold Cr honeycomb center,are the basic units of the topmost I layer.Different superstructures of single-layer CrI3 with periodicity around 2–4 nm were obtained on Au(111),while only the 1×1 structure was observed on the graphite substrate.At an elevated temperature of 423 K,single-layer CrI3 began to decompose and transformed into single-layer chromium diiodide.Our bias-dependent STM images suggest that the unoccupied and occupied states are spatial-separately distributed,consistent with the results of our DFT calculation.We also discussed the role of charge distribution in the super-exchange interactions among Cr atoms in single-layer CrI3.
基金the National Natural Science Foundation of China(Nos.11974431,92165204,and 11832019)Guangdong Major Project of Basic and Applied Basic Research(No.2021B0301030002).
文摘The family of vanadium chalcogenides with variable stoichiometry and abundant crystallographic structures are promising platforms for realizing exotic emergent phenomena.Here,we report on a novel two-dimensional(2D)tetragonal structure of vanadium telluride(VTe)grown by molecular beam epitaxy.The atomic structures and electronic properties are revealed by scanning tunneling microscopy and first-principles calculations.Different from the hexagonal or trigonal lattices of 2D VTe_(2),the 2D VTe with a V:Te ratio of 1:1 exhibits an uncommon square lattice.Non-zero differential conductivity at the Fermi energy detected by scanning tunneling spectroscopy reveals the metallic feature of VTe.Meanwhile,Friedel oscillations are observed near chiral point defects and domain walls,illustrating the itinerant nature of the electrons close to the Fermi energy.Our firstprinciples structure searches identify a 2D body-centered cubic(bcc)-like structure with a favorable formation energy to be the candidate of the metallic phase of the tetragonal VTe obtained experimentally.Based on our calculations the 2D bcc-like structure possesses a strong 2D antiferromagnetic order.Our work enriches the family of vanadium chalcogenides and provides a possible 2D antiferromagnetic material for fabricating advanced spintronic devices.
