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Spray pyrolysis-derived W-doped MoSe_(2)/rGO paper-like microspheres:optimization of microstructure and mesostructure for enhanced lithium storage

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Rare Metals 2024年第7期43卷 3019-3031页

作者： Wei Wang Jun-Yu Chen Jie Ouyang Hong Yin Ao-Jie Li Liang Chen Jun-Lin Huang Yu-Can Zhu Gang-Yong Li Zhao-Hui Hou Key Laboratory of Hunan Province for Advanced Carbon-based Functional Materials Hunan Institute of Science and TechnologyYueyang 414006China School of Chemistry and Chemical Engineering Hunan Institute of Science and TechnologyYueyang414006China Hunan Province Key Laboratory of Materials Surface&Interface Science and Technology Material Science and Engineering SchoolCentral South University of Forestry and TechnologyChangsha 410004China International Iberian Nanotechnology Laboratory(INL) AvMestre Jose Veiga4715-330 BragaPortuga

Two-dimensional MoSe_(2) is a promising candidate for lithium-ion battery ***,its conductivity and lithium storage volumetric effect still need to be *** this work,W-doped MoSe_(2)/rGO paper-like microspheres are successfully prepared through ultrasonic spray pyrolysis,achieving optimization at both the microstructure and mesostructure to enhance the lithium storage performance of the ***,by utilizing the similar two-dimensional structure between MoSe_(2) and rGO,self-assembly is achieved through spray pyrolysis,resulting in a well-defined van der Waals heterostructure at the interface on the microscale,enhancing the electron and ion transfer capability of the ***,the mesoscale paper-like microsphere morphology provides additional volume expansion buffering ***,W-doping not only increases the interlayer spacing of MoSe_(2)(0.73 nm),thereby reducing the diffusion resistance of Li+,but also allow for the modulation of the energy band structure of the *** functional theory(DFT)calculations confirm that W-doped MoSe_(2)/rGO exhibits the narrowest bandgap(0.892 eV).Therefore,the composite demonstrates excellent lithium storage performance,maintaining a specific capacity of 732.9 mAh·g^(-1)after 300 cycles at a current density of 1 A·g^(-1).

关键词： Molybdenum selenide Heterostructure Microspheres Li-ion batteries Kinetics

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Review on Development of Automatic Docking System for Weapons and Cabins

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Recent Patents on Engineering 2024年第2期18卷 63-87页

作者： Tang, Dedong Cheng, Chao Quan, Qiquan Deng, Zongquan Liu, Hao Key Laboratory of Advanced Manufacturing and Intelligent Technology Ministry of Education Harbin University of Science and Technology Harbin150080 China State Key Laboratory of Robotics and System Harbin Institute of Technology Harbin150001 China

Background: In the manufacturing setup process of weapons, aviation, and aerospace, docking assembly is a key component in determining manufacturing efficiency and quality. The traditional docking method uses manual alignment, which depends on the experience and operation level of the workers, so the docking accuracy is low and the installation speed is slow. In response to this problem, how to achieve automatic docking of weapons and cabins has become a key technology. Objective: The objective of this study is to provide an overview of recent key technologies for automatic docking systems and introduce their respective classification, characteristics, and development. Methods: This paper reviews the patents and products related to the key technologies of automatic docking systems. The structural features, methodological principles, control characteristics and applications of the patents and products are summarized. Results: The key technologies related to different aspects of an automatic docking system are compared and analyzed, and the structural features, and methodological principles are also summarized. The problems of the current key technologies are analyzed, and the current status of research and future directions of the automatic docking system are discussed. Conclusion: According to the key technologies related to different aspects of the automatic docking system, they can be divided into motion mechanism, pose detection technology, and computer control technology. The accuracy, compliance, and flexibility of the automatic docking system can be improved by choosing the proper key technology. Further improvements are needed in terms of fast performance, robustness and authenticity, and more patents on key technologies of automatic docking systems should be invented. © 2024 Bentham science Publishers.

关键词： Patents and inventions

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Investigating the effect of volatility on the hygroscopicities of acetate nanoparticle aerosols by surface plasmon resonance microscopy

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Journal of Environmental sciences 2024年第4期138卷 167-178页

作者： Bo Yang Zhibo Xie Jianguo Liu Huaqiao Gui Jiaoshi Zhang Xiuli Wei Zetao Fan Douguo Zhang Key Laboratory of Environmental Optics and Technology Anhui Institute of Optics and Fine MechanicsHefei Institutes of Physical ScienceChinese Academy of SciencesHefei 230031China University of Science and Technology of China Hefei 230026China CAS Center for Excellence in Regional Atmospheric Environment Institute of Urban EnvironmentChinese Academy of SciencesXiamen 361021China Advanced Laser Technology Laboratory of Anhui Province Department of Optics and Optical EngineeringUniversity of Science and Technology of ChinaHefei 230026China

Under high relative humidity(RH)conditions,the release of volatile components(such as acetate)has a significant impact on the aerosol *** this work,one surface plasmon resonance microscopy(SPRM)measurement system was introduced to determine the hygroscopic growth factors(GFs)of three acetate aerosols separately or mixed with glucose at different *** Ca(CH_(3)COO)_(2) or Mg(CH_(3)COO)_(2) aerosols,the hygroscopic growth trend of each time was lower than that of the previous time in three cyclic humidification from 70% RH to 90% RH,which may be due to the volatility of acetic acid leading to the formation of insoluble hydroxide(Ca(OH)_(2) or Mg(OH)_(2))under high RH *** the third calculated GF(using the Zdanovskii-Stokes-Robinson method)for Ca(CH_(3)COO)_(2) or Mg(CH_(3)COO)_(2) in bicomponent aerosols with 1:1 mass ratio were 3.20% or 5.33% lower than that of the first calculated GF at 90% *** calculated results also showed that the hygroscopicity change of bicomponent aerosol was negatively correlated with glucose content,especially when the mass ratio of Mg(CH_(3)COO)_(2) to glucose was 1:2,the GF at 90% RH only decreased by4.67% after three cyclic *** coupled plasma atomic emission spectrum(ICP-AES)based measurements also indicated that the changes of Mg^(2+)concentration in bicomponent was lower than that of the *** results of this study reveal thatduring the efflorescence transitions of atmospheric nanoparticles,the organic acids diffusion rate may be inhibited by the coating effect of neutral organic components,and the particles aging cycle will be prolonged.

关键词： Hygroscopic growth Volatility Acetate aerosols Nanoparticle aerosol Surface plasmon resonance

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Synergistic release of copper and lithium components in biodegradable zinc alloy for osteoimmunomodulation

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稀有金属（英文版） 2025年第2期44卷 1294-1311页

作者： Yu-Jue Zhang Zhao-Yong Lv Xin Luo Hui-Fen Qiang Jia-Qi He Cai-Yao Hou Ya-Geng Li Feng-Zhen Liu Lu-Ning Wang Beijing Advanced Innovation Center for Materials Genome Engineering School of Materials Science and EngineeringUniversity of Science and Technology BeijingBeijing 100083China Liaocheng People's Hospital Biomaterials LaboratoryLiaocheng 252000China Liaocheng People's Hospital Biomaterials LaboratoryLiaocheng 252000China College of Materials Science and Engineering Liaocheng UniversityLiaocheng 252000China Beijing Advanced Innovation Center for Materials Genome Engineering School of Materials Science and EngineeringUniversity of Science and Technology BeijingBeijing 100083China Beijing Advanced Innovation Center for Materials Genome Engineering School of Materials Science and EngineeringUniversity of Science and Technology BeijingBeijing 100083China Institute of Materials Intelligent Technology Liaoning Academy of MaterialsShenyang 110004China

Zinc(Zn)-based alloys have emerged as promising bioresorbable metals for orthopedic implants because of their favorable combination of moderate degradation rates,good mechanical properties,and *** addition,the performance of bone implants relies heavily on their osteointegration ability,which is closely related to the immune responses triggered after *** this study,two Zn-based alloys,Zn-2Cu and Zn-2Cu-0.8Li were developed,to improve the comprehensive properties of Zn *** introduction of copper(Cu)and lithium(Li)via alloying improved the hardness and localized corrosion resistance of Zn-based *** the Zn alloys exhibited enhanced adhe-sion,proliferation,and osteogenic differentiation behaviors when tested with MC3T3-E1 ***,the immune response of RAW264.7,mediated by the two Zn alloys,with pure Zn as a control was systematically *** results demonstrated that the synergistic release of Cu2+and Li+played a pivotal role in promoting the anti-inflammatory and osteoimmunomodulatory prop-erties of degradable *** alloying with Cu and Li,we achieved sequential and sustained ion release,resulting in the synergistic enhancement of osteoimmunomodulation through the modulation of the JAK-STAT signaling ***,the Zn-based specimens were evaluated in vivo using rat mandibular defect *** 8 weeks,the Zn-2Cu-0.8Li group exhibited significantly higher bone regeneration than the Zn-2Cu and pure Zn *** findings highlight the beneficial immune response and potential of Zn-Cu-Li alloys as novel biodegradable materials for ***.

关键词： Zinc alloys Copper and lithium Osteogenesis Macrophages Osteoimmunomodulation

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Revolutionizing Learning: The Role of AR/VR Technologies in Educational Delivery and Student Engagement in Higher Studies 2

Revolutionizing Learning: The Role of AR/VR Technologies in ...

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2nd International Conference on Machine Learning and Autonomous Systems, ICMLAS 2025

作者： Patel, Krisha R. Brahmbhatt, Vishva B. Dubey, Nilesh Jayswal, Hardik Devang Patel Institute of Advanced Technology and Research Department of Computer Engineering Vadodara India Devang Patel Institute of Advanced Technology and Research Department of Computer Science and Engineering Vadodara India Devang Patel Institute of Advanced Technology and Research Department of Infromation Technology Vadodara India

ISBN: (纸本)9798331505745

Augmented Reality (AR) and Virtual Reality (VR) are emerging technologies that combine digital and physical worlds to provide immersive and interactive experiences. Their use in education has been revolutionary, particularly in terms of increasing student engagement, grasp of complicated concepts, and encouraging experiential learning. AR superimposes virtual things on real-world surroundings, whereas VR immerses viewers in a completely digital environment. These tools gained traction during the COVID-19 epidemic, demonstrating their potential for remote learning and increasing student enthusiasm and information retention. While AR and VR are commonly employed in higher education, particularly in sectors such as healthcare and engineering, there are still barriers to their complete adoption, including cost, accessibility, and ethical concerns. This study explores the impactful uses of AR and VR in education, shedding light on their potential to modernize traditional teaching methods and improve student outcomes. © 2025 IEEE.

关键词： Students

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Pushing the limits of microwave absorption capability of carbon fiber in fabric design based on genetic algorithm

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Journal of advanced Ceramics 2023年第2期12卷 329-340页

作者： Yuhao LIU Xiaoxiao HUANG Xu YAN Long XIA Tao ZHANG Jiahao SUN Yanan LIU Yu ZHOU State Key Laboratory of Advanced Welding and Joining Harbin Institute of TechnologyHarbin 150001China School of Materials Science and Engineering Harbin Institute of TechnologyHarbin 150001China Beijing Institute of Radio Measurement China Aerospace Science and Industry Corporation LimitedBeijing 100854China School of Materials Science and Engineering Harbin Institute of TechnologyWeihaiWeihai 264209China

The field of electromagnetic wave absorption(EWA)requires the adaptability,tenability,and multifunction of high-performance materials in the *** design and preparation of EWA materials aiming at performance requirements is the latest research ***,a performancedriven strategy for simultaneously coordinating different target performances was proposed to optimize the structure of the periodical long continuous carbon/glass fiber fabric(PCGF)materials through algorithm and *** optimized structure of the PCGF not only improves the impedance matching,but also introduces the induced orientation effect for a high cooperative loss of conductivity,resonance,and periodic *** flexible PCGF shows a broad effective absorption bandwidth(EAB)of 32.7 GHz covering a part of the C-band and the whole X-,Ku-,K-,and Ka-bands with a thickness(d)of only 0.92 mm and a density of 5.6×10^(−4) kg·cm^(−3).This highly designable fabric is promising for the EWA practical application owing to integrating the characteristics of good flexibility,acid and alkali resistance,bending resistance,excellent mechanical properties,and easy large-scale preparation.

关键词： broadband microwave absorption carbon fiber impedance matching periodical long continuous carbon/glass fiber fabric(PCGF) multiple loss mechanism

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Side Chain Crosslinked Anion Exchange Membrane for Acid Concentration by Electrodialysis

Chem and Bio Engineering

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Chem and Bio Engineering 2024年第7期1卷 647-657页

作者： He, Haoyang Chen, Qian Fu, Rongqiang Liu, Zhaoming Ge, Liang Xu, Tongwen Key Laboratory of Precision and Intelligent Chemistry School of Chemistry and Materials Science University of Science and Technology of China Hefei230026 China Applied Engineering Technology Research Center for Functional Membranes Institute of Advanced Technology University of Science and Technology of China Hefei230088 China Shandong Tianwei Membrane Technology Co. LTD Weifang262737 China

Electrodialysis (ED) technology for waste acid treatment has high economic efficiency and environmentally friendly advantages. The primary limitation of ED in the retrieval of low-concentration spent acids lies in the leakage of hydrogen ions through anion exchange membranes (AEMs) due to its extremely small size and high mobility. To address this issue, a series of AEMs named QPAB-x (x = 3, 5, 7, 10) were designed for acid concentration in ED process by increasing the membrane densities through in situ crosslinking in this study. The successful synthesis of polymers was confirmed through 1H nuclear magnetic resonance hydrogen (1H NMR) spectroscopy and Attenuated total reflection-Fourier transform infrared (ATR-FTIR) spectroscopy. Furthermore, ATR-FTIR spectroscopy showed that the higher the side chain content, the higher the crosslinking degree of the membranes. X-ray photoelectron spectroscopy (XPS) was employed to characterize the effects of aqueous and acidic environments on QPAB membranes. The performance disparities between QPAB-x membranes in acidic and aqueous environments were examined separately. Subsequently, the influence of crosslinking degree on the acid-blocking capability of the membranes was thoroughly investigated by conducting ED acid-concentration experiments to monitor the hydrogen ions concentration process and determine the current efficiency and energy consumption of the QPAB-x membranes. Our experimental results demonstrated that QPAB-x membranes with higher cross-linking degrees have lower water content, especially the QPAB-10 membrane with an IEC of approximately 1.5 mmol g-1 and a remarkably low water content of around 10%. This leads to a reduced H+ transfer number and excellent acid-blocking properties. Additionally, compared to commercial membrane A2, using the QPAB-10 membrane in the ED process resulted in a higher final H+ concentration in the concentrated chamber. Consequently, these synthesized membranes exhibit considerable promis

关键词： Fourier transform infrared spectroscopy

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Frozen Bubble Flake Display: A Novel Projection Screen using a Frozen Soap Bubble

Frozen Bubble Flake Display: A Novel Projection Screen using...

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2025 CHI Conference on Human Factors in Computing Systems, CHI EA 2025

作者： Sato, Toshiki Toyoura, Fuwa Terasawa, Shinichiro School of Knowledge Science Japan Advanced Institute of Science and Technology Ishikawa Japan School of Informatics and Engineering The University of Electro-Communications Chofu Tokyo Japan Japan Advanced Institute of Science and Technology Ishikawa Japan

ISBN: (纸本)9798400713958

We propose a novel projection screen material that utilizes the freezing phenomenon of soap film. Soap film is naturally transparent, but when frozen at low temperatures, it becomes more opaque and can serve as a projection screen. In this research, we focus on the frozen soap film and the freezing process and propose the possibility of using it as a new screen material. We also describe a method for implementing an omni-directional ProCam system that reproduces the freezing phenomenon at room temperature and enables interactive projection onto the frozen soap film. We present a prototype-based application and discuss its technological potential and future research directions. © 2025 Copyright held by the owner/author(s).

关键词： Projection screens

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Scale effect of circularly polarized luminescent signal of matter

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National science Review 2023年第5期10卷 232-239页

作者： Siyu Sun Xiaolin Li Chen Xu Yan Li YongZhen Wu Ben L.Feringa He Tian Xiang Ma Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center Frontiers Science Center for Materiobiology and Dynamic ChemistrySchool of Chemistry and Molecular EngineeringEast China University of Science and Technology School of Physics East China University of Science and Technology Stratingh Institute for Chemistry and Zernike Institute for Advanced Materials Faculty of Science and EngineeringUniversity of Groningen

Circularly polarized luminescence(CPL) is an important part in the research of modern luminescent materials and photoelectric ***,chiral molecules or chiral structures are the key factors to induce CPL spontaneous *** this study,a scale-effect model based on scalar theory was proposed to better understand the CPL signal of luminescent *** chiral structures being able to induce CPL,achiral ordered structures can also have a significant influence on CPL *** achiral structures are mainly reflected in the particle scale in micro-order or macro-order,*** CPL signal measured under most conditions depends on the scale of the ordered medium,and does not reflect the inherent chirality of the excited state of the luminescent *** kind of influence is difficult to be eliminated by simple and univers al strategies in *** the same time,it is found that the measurement entropy of CPL detection may be the key factor to determine the isotropy and anisotropy of the CPL *** discovery would bring new opportunities to the research of chiral luminescent *** strategy can also greatly reduce the development difficulty of CPL materials and show high application potential in biomedical,photoelectric information and other fields.

关键词： scale effect circularly polarized luminescent chirality quantum dots perovskite

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Shotgun crystal structure prediction using machine-learned formation energies

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npj Computational Materials 2024年第1期10卷 13-26页

作者： Liu Chang Hiromasa Tamaki Tomoyasu Yokoyama Kensuke Wakasugi Satoshi Yotsuhashi Minoru Kusaba Artem R.Oganov Ryo Yoshida The Institute of Statistical Mathematics Research Organization of Information and SystemsTachikawaTokyo190-8562Japan Technology Division Panasonic Holdings CorporationKadomaOsaka571-8508Japan Skolkovo Institute of Science and Technology Skolkovo Innovation CenterMoscow121205Russia The Graduate Institute for Advanced Studies The Graduate University for Advanced Studies(SOKENDAI)Tachikawa190-8562Japan

Stable or metastable crystal structures of assembled atoms can be predicted by finding the global or local minima of the energy surface within a broad space of atomic ***,this requires repeated first-principles energy calculations,which is often impractical for large crystalline ***,we present significant progress toward solving the crystal structure prediction problem:we performed noniterative,single-shot screening using a large library of virtually created crystal structures with a machine-learning energy *** shotgun method(ShotgunCSP)has two key technical components:transfer learning for accurate energy prediction of pre-relaxed crystalline states,and two generative models based on element substitution and symmetry-restricted structure generation to produce promising and diverse crystal ***-principles calculations were performed only to generate the training samples and to refine a few selected pre-relaxed crystal *** ShotunCSP method is less computationally intensive than conventional methods and exhibits exceptional prediction accuracy,reaching 93.3%in benchmark tests with 90 different crystal structures.

关键词： crystal structure crystalline

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