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IABC: An iteratively automatic machine learning boosted hand-eye calibration method for laser displacement sensor

Chinese Journal of Aeronautics 2023年第8期36卷 422-453页

作者： Helin LI Bin LIN Tianyi SUI Liang XU Chen ZHANG Shuai YAN Yang WANG Xinquan HAO Deyu LOU School of Mechanical Engineering Ministry of EducationTianjin UniversityTianjin 300350China International Institute for Innovative Design and Intelligent Manufacturing of Tianjin University Shaoxing 312000China Science and Technology of Advanced Functional Composite Laboratory Aerospace Research Institute of Materials and Processing TechnologyBeijing 100076China Key Laboratory of Advanced Ceramics and Machining Technology of Ministry of Education Tianjin UniversityTianjin 300072China

An on-machine measuring(OMM)system with a laser displacement sensor(LDS)is designed for measuring free-form surfaces of hypersonic aircraft’s *** improve the measurement accuracy of the OMM system,a novel Iteratively Automatic machine learning Boosted hand-eye Calibration(IABC)method is *** the hand-eye relationship and LDS measurement errors can be calibrated in one calibration process without any hardware changes via ***,a new objective function is derived,containing analytical parameters of the handeye relationship and LDS ***,a hybrid calibration model composed of two kernels is proposed to solve the objective *** kernel is the analytical kernel designed for solving analytical *** kernel is the automatic machine learning(AutoML)kernel designed to model LDS *** two kernels are connected with stepwise iterations to find the best calibration *** with traditional methods,hand-eye experiments show that IABC reduces the calibration RMSE by about 50%.Verification experiments show that IABC reduces the measurement deviations by about 25%-50%and RMSEs within 40%.Even when the training data are obviously less than the test data,IABC performs *** demonstrate that IABC is more accurate than traditional hand-eye methods.

关键词： Hand-Eye Calibration Laser Displacement Sensor Machine learning Measurement errors On-Machine Measurement

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Visible light triggered exfoliation of COF micro/nanomotors for efficient photocatalysis

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Green Energy & Environment 2023年第2期8卷 567-578页

作者： Kai Feng Liang Zhang Jiang Gong Jinping Qu Ran Niu Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of EducationHubei Key Laboratory of Material Chemistry and Service FailureHubei Engineering Research Center for Biomaterials and Medical Protective MaterialsSchool of Chemistry and Chemical EngineeringHuazhong University of Science and TechnologyWuhan430074China The State Key Laboratory Breeding Base of Basic Science of Stomatology(Hubei-MOST)&Key Laboratory of Oral Biomedicine Ministry of Education School and Hospital of StomatologyWuhan UniversityWuhan 430079China National Engineering Research Center of Novel Equipment for Polymer Processing Key Laboratory of Polymer Processing EngineeringMinistry of EducationGuangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular Advanced ManufacturingSchool of Mechanical and Automotive EngineeringSouth China University of TechnologyGuangzhou510641China

We report a new facile light-induced strategy to disperse micron-sized aggregated bulk covalent organic frameworks(COFs)into isolated COFs *** was achieved by a series of metal-coordinated COFs,namely COF-909-Cu,-Co or-Fe,where for the first time the diffusio-phoretic propulsion was utilized to design COF-based micro/*** mechanism studies revealed that the metal ions decorated in the COF-909 backbone could promote the separation of electron and holes and trigger the production of sufficient ionic and reactive oxygen species under visible light *** this way,strong light-induced self-diffusiophoretic effect is achieved,resulting in good dispersion of *** them,COF-909-Fe showed the highest dispersion performance,along with a drastic decrease in particle size from 5μm to500 nm,within only 30 min light irradiation,which is inaccessible by using traditional magnetic stirring or ultrasonication *** importantly,benefiting from the outstanding dispersion efficiency,COF-909-Fe micro/nanomotors were demonstrated to be efficient in photocatalytic degradation of tetracycline,about 8 times faster than using traditional magnetic stirring *** work opens up a new avenue to prepare isolated nanosized COFs in a high-fast,simple,and green manner.

关键词： Micro/nanomotor COFs Exfoliation Nanocatalyst Photocatalysis

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High toughness and CMAS resistance of REAlO_(3)/RE_(2)Zr_(2)O_(7)(RE=La,Nd,Sm,Eu,Gd,and Dy)composites with eutectic composition for thermal barrier coatings

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Journal of advanced Ceramics 2024年第6期13卷 800-809页

作者： Zijian Zhang Jian Sun Guanghua Liu Yi Han Wei Liu Yi Li Wei Wang Xiangyang Liu Peng Zhang Wei Pan Chunlei Wan State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijing 100084China China United Gas Turbine Technology Co. Ltd.Beijing 100015China College of Mathematics and Physics Beijing University of Chemical TechnologyBeijing 100029China College of Materials Science and Engineering Beijing University of TechnologyBeijing 100124China

Although rare earth zirconates(RE_(2)Zr_(2)O_(7))have garnered attention as viable candidates for thermal barrier coatings(TBCs),they suffer from low fracture toughness and accelerated calcium–magnesium–alumina–silicate(CMAS)melt corrosion at high service temperatures,which impedes their practical *** this work,we developed a series of REAlO_(3)/RE_(2)Zr_(2)O_(7)(RE=La,Nd,Sm,Eu,Gd,and Dy)composites with a eutectic composition that not only significantly enhanced the fracture toughness by more than 40%relative to that of RE_(2)Zr_(2)O_(7)but also exhibited improved resistance to CMAS *** increase in toughness arises from multiple mechanisms,such as ferroelastic toughening,fine-grain strengthening,and residual stress toughening,all of which trigger more crack defects and energy ***,the CMAS penetration depth of the REAlO_(3)/RE_(2)Zr_(2)O_(7)composites is approximately 36%lower than that of RE_(2)Zr_(2)O_(7).Al–O constituents in composites can capture CaO,SiO_(2),and MgO in CMAS melts and increase their viscosity,resulting in enhanced CMAS corrosion *** thermophysical properties of the REAlO_(3)/RE_(2)Zr_(2)O_(7)composites were also investigated,and their coefficient of thermal expansion and thermal conductivity are comparable to those of 7–8 wt%Y_(2)O_(3)partially stabilized ZrO2(YSZ),indicating their potential as TBC materials.

关键词： fracture toughness thermal property calcium-magnesium-alumina-silicate(CMAS)corrosion REAlO_(3)/RE_(2)Zr_(2)O_(7) eutectic composition

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Multifunctional-Ligand Enabled Stable CsPbI₃ Quantum Dots for Highly Efficient Pure-Red Light-Emitting Diodes

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ACS Applied materials and Interfaces 2025年第23期17卷 34182-34192页

作者： Huang, Shuwen Mo, Xiaoming Han, Shulin Liang, Huasong Cai, Lei Cao, Sheng Zou, Bingsuo Zheng, Jinju Zhao, Jialong School of Physical Science and Technology State Key Laboratory of Featured Metal Materials and Life-Cycle Safety for Composite Structures Guangxi Key Laboratory of Processing for Non-Ferrous Metals and Featured Materials Guangxi University Nanning 530004 China Shandong Province Key Laboratory of Medical Physics and Image Processing Technology School of Physics and Electronics Institute of Materials and Clean Energy Shandong Normal University Jinan 250014 China School of Resources Environment and Materials Guangxi University Nanning 530004 China Institute of Micro/Nano Materials and Devices Ningbo University of Technology Ningbo 315211 China

High-performance pure-red perovskite light-emitting diodes (PeLEDs) are promising candidates for optoelectronic applications due to their remarkable photophysical properties. However, the unstable surface and insulating long-chain capping ligands of perovskite quantum dots (QDs) pose challenges to their commercialization by compromising stability and performance. Here, a simple but effective approach was demonstrated to synthesize highly stable red CsPbI₃ QDs by introducing a multifunctional molecule, phenformin hydrochloride (PhenHCl), as an additive ligand. While the biguanide functional group in PhenHCl formed multiple hydrogen-bond interactions with the lead halide octahedron, the excess Cl^- anions compensated for the iodine vacancies and eliminated trap states in the CsPbI₃ QDs. The synergistic effect of the biguanide functional group and halogen compensation significantly passivated surface defects of the red CsPbI₃ QDs, yielding a photoluminescence (PL) quantum yield of 98.6% and excellent ambient stability with 90% PL intensity retention over 80 days. The resulting pure-red PeLEDs based on the PhenHCl-treated CsPbI₃ QDs were demonstrated to show a remarkable enhancement in the electroluminescence performance at around 649 nm, with an external quantum efficiency of 13.38%, and a maximum luminance of 2159 cd m^-2. Our findings in this work provide an avenue by modulating the surface chemistry of CsPbI₃ QDs to enhance the performance of pure-red PeLEDs. © 2025 American Chemical Society.

关键词： CsPbI3 high stability light-emitting diodes perovskite quantum dots surface passivation

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Interfacial Modification,Electrode/Solid‑Electrolyte Engineering,and Monolithic Construction of Solid‑state Batteries

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Electrochemical Energy Reviews 2023年第1期6卷 320-356页

作者： Qirong Liu Qiqi Chen Yongbing Tang Hui‑Ming Cheng Advanced Energy Storage Technology Research Center Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055GuangdongChina Faculty of Materials Science and Engineering/Institute of Technology for Carbon Neutrality Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055GuangdongChina Shenzhen Key Laboratory of Energy Materials for Carbon Neutrality Shenzhen 518055GuangdongChina Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016LiaoningChina University of Chinese Academy of Sciences Beijing 100049China Nano Science and Technology Institute University of Science and Technology of ChinaSuzhou 215123JiangsuChina Key Laboratory of Advanced Materials Processing and Mold Ministry of EducationZhengzhou UniversityZhengzhou 450002HenanChina

Solid-state lithium-metal batteries(SLMBs)have been regarded as one of the most promising next-generation devices because of their potential high safety,high energy density,and simple packing ***,the practical applications of SLMBs are restricted by a series of static and dynamic interfacial issues,including poor interfacial contact,(electro-)chemical incompatibility,dynamic Li dendrite penetration,*** recent years,considerable attempts have been made to obtain mechanistic insight into interfacial failures and to develop possible strategies towards excellent interfacial properties for *** static and dynamic failure mechanisms at interfaces between solid electrolytes(SEs)and electrodes are comprehensively summarized,and design strategies involving interfacial modification,electrode/SE engineering,and the monolithic construction of SLMBs are discussed in ***,possible research methodologies such as theoretical calcu-lations,advanced characterization techniques,and versatile design strategies are provided to tackle these interfacial problems.

关键词： Solid-state batteries Interfacial issues Interfacial modification Electrode/solid-electrolyte engineering Monolithic construction

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Microwave-assisted exploration of the electron configuration-dependent electrocatalytic urea oxidation activity of 2D porous NiCo_(2)O_(4) spinel

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Journal of Energy Chemistry 2024年第4期91卷 226-235页

作者： Jun Wan Zhiao Wu Guangyu Fang Jinglin Xian Jiao Dai Jiayue Guo Qingxiang Li Yongfei You Kaisi Liu Huimin Yu Weilin Xu Huiyu Jiang Minggui Xia Huanyu Jin State Key Laboratory of New Textile Materials and Advanced Processing Technologies Hubei Key Laboratory of Biomass Fibers and Eco-Dyeing&FinishingWuhan Textile UniversityWuhan 430200HubeiChina Institute for Sustainability Energy and ResourcesThe University of AdelaideAdelaideSA 5005Australia Future Industries Institute University of South AustraliaMawson Lakes CampusAdelaideSA 5095Australia

Urea holds promise as an alternative water-oxidation substrate in electrolytic ***-valence nickelbased spinel,especially after heteroatom doping,excels in urea oxidation reactions(UOR).However,traditional spinel synthesis methods with prolonged high-temperature reactions lack kinetic precision,hindering the balance between controlled doping and highly active two-dimensional(2D)porous structures *** significantly impedes the identification of electron configuration-dependent active sites in doped 2D nickel-based ***,we present a microwave shock method for the preparation of 2D porous NiCo_(2)O_(4)*** the transient on-off property of microwave pulses for precise heteroatom doping and 2D porous structural design,non-metal doping(boron,phosphorus,and sulfur)with distinct extranuclear electron disparities serves as straightforward examples for *** tuning of lattice parameter reveals the impact of covalent bond strength on NiCo_(2)O_(4)structural *** introduced defect levels induce unpaired d-electrons in transition metals,enhancing the adsorption of electron-donating amino groups in urea ***,Bode plots confirm the impact mechanism of rapid electron migration caused by reduced band gaps on UOR *** prepared phosphorus-doped 2D porous NiCo_(2)O_(4),with optimal electron configuration control,outperforms most reported *** controlled modification strategy advances understanding theoretical structure-activity mechanisms of high-performance 2D spinels in UOR.

关键词： 2D materials Spinel Microwave Electrocatalysis Urea oxidation reaction

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Simultaneous Solar-driven Steam and Electricity Generation by Cost-effective,Easy Scale-up MnO 2-based Flexible Membranes

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Energy & Environmental materials 2023年第3期6卷 184-192页

作者： Jiaxin Ren Yang Ding Jiang Gong Jinping Qu Ran Niu Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of EducationHubei Key Laboratory of Material Chemistry and Service FailureHubei Engineering Research Center for Biomaterials and Medical Protective MaterialsSemiconductor Chemistry CenterSchool of Chemistry and Chemical EngineeringHuazhong University of Science and TechnologyWuhan 430074China National Engineering Research Center of Novel Equipment for Polymer Processing Key Laboratory of Polymer Processing EngineeringMinistry of EducationGuangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular Advanced ManufacturingSchool of Mechanical and Automotive EngineeringSouth China University of TechnologyGuangzhou 510641China

Harvesting solar energy in an effective manner for steam and electricity generation is a promising technique to simultaneously cope with the energy and water ***,the construction of efficient and easy scale-up photothermal materials for steam and electricity cogeneration remains ***,we report a facile and cost-effective strategy to prepare MnO_(2)-decorated cotton cloth(MCx).The wide adsorption spectrum and excellent photothermal conversion ability of the in situ-formed MnO_(2)nanoparticles make the MCx to be advanced photothermal ***,the hybrid device integrated with MCx as the photothermal layer and the thermoelectric(TE)module for electricity power conversion exhibits an extremely high evaporation rate of 2.24 kg m^(−2)h^(−1)under 1 kW m^(−2)irradiation,which is ranked among the most powerful solar *** importantly,during solar evaporation,the hybrid device produces an open-circuit voltage of 0.3 V and a power output of 1.6 W m^(−2)under 3 Sun irradiation,and outperforms most of the previously reported solar-driven electricity generation ***,the integrated device with synergistic solar-thermal utilization opens up a green way toward simultaneous solar vapor and electric power generation in remote and resource-constrained areas.

关键词： photothermal material solar desalination solar energy solar steam generator thermoelectrics

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How to commercialize solid-state batteries:a perspective from solid electrolytes

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National Science Open 2023年第1期2卷 5-12页

作者： Zhuo Li Jialong Fu Xin Guo School of Materials Science and Engineering State Key Laboratory of Material Processing and Die&Mould TechnologyHuazhong University of Science and TechnologyWuhan 430074China

Lithium-ion batteries with flammable liquid electrolytes and graphite anodes suffer from insufficient energy density and potential safety *** electrolytes are very promising to completely address these issues[1,2],because solid electrolytes that are electrochemically stable with Li metal anodes and compatible with high-voltage cathodes can simultaneously achieve high safety and high energy ***,solid electrolytes can be classified into two groups:solid polymers and inorganic solids,including oxides,sulfides and halides[3].

关键词： solid solids sulfide

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Highly efficient electrocatalytic deuteration of acetylene to deuterated ethylene using deuterium oxide

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Chinese Chemical Letters 2023年第5期34卷 302-305页

作者： Siyu Chang Jun Bu Jinjin Li Jin Lin Zhenpeng Liu Wenxiu Ma Jian Zhang Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology School of Chemistry and Chemical EngineeringNorthwestern Polytechnical UniversityXi'an 710129China State Key Laboratory of Solidification Processing and School of Materials Science and Engineering Northwestern Polytechnical UniversityXi'an 710072China

Deuterated ethylene is an important building block for manufacturing various deuterated polyolefins and ***,low-cost and large-scale production of deuterated ethylene still remain a great ***,with D_(2)O as the D source,we first propose an electrocatalytic deuteration strategy for continuous production of deuterated ethylene from acetylene under ambient ***,Ag nanoparticles exhibit a very high deuterated ethylene Faradic efficiency of up to 99.3%at-0.6 V *** hydrogen ***,Ag nanoparticles achieve a deuterated ethylene production rate of 3.72×10^(3)mmol h^(-1)g^(-1)cat and an excellent long-term stability with deuterated ethylene Faradaic efficiencies of~95%in a two-electrode flow cell,which substantially outperform state-of-the-art values for previously reported deuterated ***-situ electrochemical Infrared absorption and Raman spectroscopies reveal superior acetylene absorption and formation of deuterated ethylene on Ag *** efficient electrocatalytic deuteration strategy opens a new window for continuous and economic production of deuterated alkenes.

关键词： Electrocatalysis Deuteration Acetylene Deuterated ethylene Deuterium oxide

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Influence of the ratio of sintering aids on the properties of porous Si3N4 ceramics fabricated by digital light processing

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Ceramics International 2023年第20期49卷 33004-33010页

作者： Wu, Ya-Ru Tian, Chong Wu, Jia-Min Huang, Hai-Lu Liu, Chun-Lei Lin, Xin Cheng, Li-Jin Shi, Yu-Sheng State Key Laboratory of Materials Processing and Die & Mould Technology School of Materials Science and Engineering Huazhong University of Science and Technology Wuhan430074 China Engineering Research Center of Ceramic Materials for Additive Manufacturing Ministry of Education Wuhan430074 China Wenzhou Key Laboratory of Microwave Communication Materials and Devices Wenzhou Advanced Manufacturing Institute of HUST Wenzhou325035 China State Key Laboratory of Solidification Processing Northwestern Polytechnical University Shaanxi Xi'an710072 China Key Laboratory of Metal High Performance Additive Manufacturing and Innovative Design MIIT China Northwestern Polytechnical University Shaanxi Xi'an710072 China School of Mechanical Engineering Hebei University of Technology Tianjin300401 China

The sintering aids play an important role in affecting the properties of porous Si3N4 ceramics. However, there are few researches on the properties of porous Si3N4 ceramics fabricated by digital light processing (DLP) with different ratios of sintering aids. In this paper, porous Si3N4 ceramics with different ratios of sintering aids (Y2O3-Al2O3) were formed by DLP technology. The influence of Y2O3-Al2O3 ratios on the properties of Si3N4 slurry and porous ceramic was studied systematically. The ratio of Y2O3-Al2O3 had little effect on the rheology and cure depth of Si3N4 slurry due to the low addition of sintering aids. The increase of Y2O3-Al2O3 ratio promoted the anisotropic growth of β-Si3N4. When the ratio of Y2O3-Al2O3 was 9:1, the aspect ratio of β grains reached the maximum. As the ratio of Y2O3-Al2O3 powders increased, the linear shrinkage of porous Si3N4 ceramics showed an increasing and then decreasing trend in three directions. When the Y2O3-Al2O3 ratio was 3:7, the shrinkage rate in the length, width and height direction reached the maximum (27.03%, 30.27% and 40.02%, respectively). The bulk density and flexural strength exhibited an initial increase followed by a subsequent decrease, while the porosity showed the opposite trend. When the Y2O3-Al2O3 ratio was 9:1, the porosity reached a maximum of 28.1%. And the bulk density and flexural strength were 2.42 g/cm3 and 421.58 MPa, respectively. This study is of great significance as it lays the experimental foundation in the performance control of porous Si3N4 ceramics fabricated by DLP. © 2023 Elsevier Ltd and Techna Group S.r.l.

关键词： Sintering

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