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SSRN 2024年

作者： Li, Sen Huang, Zhiyuan Hua, Yingkai Liu, Xingchen Chen, Xi Feng, Qi Feng, Jun Department of Materials Science and Engineering Southern University of Science and Technology Guangdong Shenzhen518055 China Department of Industrial Systems Engineering The Hong Kong Polytechnic University 100872 Hong Kong Department of Pharmacology Graduate School of Medicine Kagawa University 1750-1 Takamatsu761-0793 Japan Department of Advanced Materials Science Faculty of Engineering and Design Kagawa University 2217-20 Takamatsu761-0396 Japan Guangdong Provincial Key Laboratory of Functional Oxide Materials and Devices Southern University of Science and Technology Guangdong Shenzhen518055 China Institute for Quantum Science and Engineering Southern University of Science and Technology Guangdong Shenzhen518055 China

Anode materials combining conversion and alloying mechanisms are increasingly valued in advanced rechargeable batteries for their exceptional theoretical capacities and advantageous working voltages. This study showcases BiSCl as a novel conversion/alloying anode material, demonstrating a high specific capacity and enhanced durability through polypyrrole encapsulation. Employing in-situ X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), ex-situ transmission electron microscopy (TEM), and field emission scanning electron microscopy (FESEM), we offer a detailed analysis of the lithiation mechanism in BiSCl. The anode exhibits a low average working potential of approximately 0.6 V, supporting a theoretical specific capacity of 784 mAh g−1 and a volumetric capacity of 4664 mAh cm−3. The innovative BiSCl-PPy core-shell composite effectively addresses the challenges of volumetric expansion and polysulfide dissolution. This composite delivers a remarkable reversible capacity of 753 mAh g–1 at a current rate of 100 mA g−1, maintaining 96% of its specific capacity over 400 cycles, and sustains 419 mAh g–1 at 500 mA g−1 after 800 cycles, demonstrating more superior performance than that of BiSCl. These findings establish BiSCl as a highly promising conversion/alloying anode material for lithium storage, significantly enhanced in durability by the BiSCl-PPy core-shell composite. © 2024, The Authors. All rights reserved.

关键词： Anodes

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Enabling technology and core theory of synthetic biology

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science China(Life sciences) 2023年第8期66卷 1742-1785页

作者： Xian-En Zhang Chenli Liu Junbiao Dai Yingjin Yuan Caixia Gao Yan Feng Bian Wu Ping Wei Chun You Xiaowo Wang Tong Si Faculty of Synthetic Biology Shenzhen Institute of Advanced TechnologyShenzhen 518055China Institute of Synthetic Biology Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055China National Laboratory of Biomacromolecules Institute of BiophysicsChinese Academy of SciencesBeijing 100101China Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering(Ministry of Education) School of Chemical Engineering and TechnologyTianjin UniversityTianjin 300072China State Key Laboratory of Plant Cell and Chromosome Engineering Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing 100101China State Key Laboratory of Microbial Metabolism Shanghai Jiao Tong UniversityShanghai 200240China State Key Laboratory of Microbial Resources Institute of MicrobiologyChinese Academy of SciencesBeijing 100101China Tianjin Institute of Industrial Biotechnology Chinese Academy of SciencesTianjin 300308China Ministry of Education Key Laboratory of Bioinformatics Center for Synthetic and Systems BiologyBioinformatics DivisionBeijing National Research Center for Information Science and TechnologyDepartment of AutomationTsinghua UniversityBeijing 100084China

Synthetic biology provides a new paradigm for life science research(“build to learn”)and opens the future journey of biotechnology(“build to use”).Here,we discuss advances of various principles and technologies in the mainstream of the enabling technology of synthetic biology,including synthesis and assembly of a genome,DNA storage,gene editing,molecular evolution and de novo design of function proteins,cell and gene circuit engineering,cell-free synthetic biology,artificial intelligence(AI)-aided synthetic biology,as well as *** also introduce the concept of quantitative synthetic biology,which is guiding synthetic biology towards increased accuracy and predictability or the real rational *** conclude that synthetic biology will establish its disciplinary system with the iterative development of enabling technologies and the maturity of the core theory.

关键词： synthetic biology quantitative synthetic biology genome synthesis and assembly DNA storage molecular evolution de novo design computer-aided design cell engineering gene circuit chassis cell artificial intelligent(AI) biofoundry

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H observer-based control for fuzzy Hadamard fractional-order systems

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Computational and Applied Mathematics 2025年第4期44卷 1-14页

作者： Rhaima, Mohamed Gassara, Hamdi Mchiri, Lassaad El Hajjaji, Ahmed Ben Makhlouf, Abdellatif Department of Statistics and Operations Research College of Science King Saud University Riyadh Saudi Arabia Laboratory of Sciences Techniques of Automatic Control and Computer Engineering National School of Engineering of Sfax University of Sfax Sfax Tunisia Panthéon-Assas University Paris II Paris France Modeling Information and Systems Laboratory University of Picardie Jules Verne UFR of Sciences Amiens France Department of Mathematics Faculty of Sciences Sfax University Sfax Tunisia

While the $$H_\infty $$ observer-based control has found widespread application in the literature for integer-order systems, researchers have shown less interest in addressing the same issue within the fractional-order framework. In this context, this study delves into the application of $$H_\infty $$ observer-based control for the Hadamard fractional-order system (HFOS) described by the Takagi–Sugeno fuzzy models (TSFM). Using Lyapunov approach and by employing a matrix decoupling technique, LMI based conditions ensuring the existence of an observer and controller, are proposed. To minimize the impact of disturbances on the controlled output, $$H_\infty $$ optimization technique is used. The validity of our approach is substantiated through an example, underscoring the robustness and reliability of our proposed findings.

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Dielectric and Electrical Performance of Epoxy/CNC Nanocomposites for Biomaterial-Based Electrical Insulation

Dielectric and Electrical Performance of Epoxy/CNC Nanocompo...

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International Conference on Condition Monitoring and Diagnosis, CMD

作者： M. Z. H. Makmud M. Michael Tuan A. Z. Rahman Z. Jamain K. N. M. Amin H. A. Illias Energy Lab Green Technologies and Advanced Matter (GREAT) Research Group Faculty of Science and Natural Resources Universiti Malaysia Sabah Kota Kinabalu Sabah MALAYSIA IoT Systems Lab MIMOS Berhad MRANTI Technology Park Bukit Jalil Kuala Lumpur MALAYSIA Faculty of Chemical and Process Engineering Technology College of Engineering Technology Universiti Malaysia Pahang Pahang MALAYSIA Department of Electrical Engineering UM High Voltage Laboratory (UMHVL) Faculty of Engineering University of Malaya Kuala Lumpur MALAYSIA

ISBN: (数字)9788986510225

ISBN: (纸本)9798350353877

The development of advanced electrical insulation materials is crucial for the sustainability and efficiency of electrical systems, particularly in high-voltage applications. This study investigates the influence of cellulose nanocrystal (CNC) nanofillers on the dielectric and electrical performance of epoxy composites, aiming to enhance the durability and effectiveness of biomaterial-based electrical insulation. Epoxy samples with varying CNC concentrations (0, 0.5, 1, 3, and 5 wt%) were prepared and characterized. Key performance indicators, including dielectric permittivity, dielectric loss, current-voltage response, and electrical discharge activity, were measured and analyzed. The results demonstrated a clear correlation between reduced real and imaginary permittivity, increased resistance, and improved discharge withstandability, highlighting the effectiveness of CNC as a nanofiller in enhancing the insulating properties of epoxy composites. These findings suggest a promising avenue for developing robust, high-performance electrical insulators capable of meeting the stringent demands of sustainable and environmentally friendly applications.

关键词： Insulation Correlation Nanocomposites Dielectric loss measurement Discharges (electric) Dielectrics Permittivity Sustainable development Stress Immune system

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Plugging Effect of Fine Pore Water in Opc and LC3 Paste During Accelerated Carbonation Monitored Via Single-Sided Nuclear Magnetic Resonance Spectroscopy

SSRN

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SSRN 2024年

作者： Cheng, Luge Kurihara, Ryo Ohkubo, Takahiro Kitagaki, Ryoma Suda, Yuya Teramoto, Atsushi Maruyama, Ippei Department of Architecture Graduate School of Engineering The University of Tokyo Tokyo113-8656 Japan Department of Applied Chemistry and Biotechnology Graduate School of Engineering Chiba University Chiba263-8522 Japan Division of Human Environmental Systems Graduate School of Engineering Hokkaido University Sapporo060-8628 Japan Department of Architecture Graduate School of Advanced Science and Engineering Hiroshima University Hiroshima739-8527 Japan Civil Engineering Program Faculty of Engineering University of the Ryukyus Okinawa903-0213 Japan Nagoya University Japan

This study focuses on the investigation of the influence of CO2 concentration on the carbonation process in cementitious paste using ordinary Portlandite cement and limestone-calcined clay cement, specifically on the water content distribution. Employing single-sided nuclear magnetic resonance spectroscopy for water profiling, we revealed that the water content of fine pores (interlayer space and gel pores) was consistent at the carbonation front under accelerated carbonation processes with CO2 concentrations of 5% and 1%, demonstrating the plugging effect where fine pore water governs the carbonation progress. This effect was absent under natural carbonation conditions because of the carbonation process was slower than drying. It was confirmed that the rate-determining mechanisms of natural and accelerated carbonation with CO2 concentrations greater than 1% were different. © 2024, The Authors. All rights reserved.

关键词： Carbonation

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基于自解耦三明治结构的横向运动栅场效应晶体管MEMS微力传感器

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engineering 2023年第2期21卷 61-74,M0004页

作者：高文迪乔智霞韩香广王小章 Adnan Shakoor 刘存朗卢德江杨萍赵立波王永录王久洪蒋庄德孙东 State Key Laboratory for Manufacturing Systems Engineering International Joint Laboratory for Micro/Nano Manufacturing and Measurement TechnologiesOverseas Expertise Introduction Center for Micro/Nano Manufacturing and Nano Measurement Technologies Discipline InnovationXi’an Jiaotong University(Yantai)Research Institute for Intelligent Sensing Technology and SystemSchool of Mechanical EngineeringXi’an Jiaotong UniversityXi’an 710049China Shandong Laboratory of Yantai Advanced Materials and Green Manufacturing Yantai 265503China Beijing Advanced Innovation Center for Intelligent Robots and Systems Beijing Institute of TechnologyBeijing 100081China State Key Laboratory of Robotics and Systems Harbin Institute of TechnologyHarbin 150006China Eleventh Research Institute Sixth Academy of China Aerospace Science and Technology Co.Xi’an 710100China Department of Control and Instrumentation Engineering King Fahd University of Petroleum and MineralsDhahran 31261Saudi Arabia Department of Biomedical Engineering City University of Hong KongHong Kong 999077China

本文介绍了一种基于横向可移动栅极场效应晶体管(LMGFET)的新型微型力传感器的开发。提出了一种精确的电气模型,用于小型LMGFET器件的性能评估,与以前的模型相比,其精度有所提高。采用了一种新型三明治结构,该结构由一个金交叉解耦栅阵... 详细信息

本文介绍了一种基于横向可移动栅极场效应晶体管(LMGFET)的新型微型力传感器的开发。提出了一种精确的电气模型,用于小型LMGFET器件的性能评估,与以前的模型相比,其精度有所提高。采用了一种新型三明治结构,该结构由一个金交叉解耦栅阵列层和两个软光阻层SU-8组成。通过所提出的双差分传感结构,LMGFET横向工作在垂直干扰下的输出电流被大大消除,所提出传感器的相对输出误差从4.53%(传统差分结构)降低到0.01%。提出了一种实用的传感器制造工艺,并对其进行了模拟。基于LMGFET的力传感器的灵敏度为4.65μA·nN^(-1),可与垂直可移动栅极场效应晶体管(VMGFET)器件相媲美,但非线性度提高了0.78%,测量范围扩大了±5.10μN。这些分析为LMGFET器件的电气和结构参数提供了全面的设计优化,并证明了所提出的传感器在生物医学显微操作应用中具有良好的力传感潜力。

关键词：力传感器场效应晶体管横向运动三明治结构电气模型显微操作非线性度双差分

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Semi-coherent and coherent nanoprecipitation induced superior strength-ductility combination in additively manufactured CoCrMoW alloy

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Journal of Materials science & Technology 2026年 242卷 1-14页

作者： Canjuan Xiao Weijin Cai Ruidi Li Song Ni Wenting Jiang Zhangwei Wang Khurram Yaqoob Zibin Chen Yi Huang Min Song State Key Laboratory of Powder Metallurgy Central South University Changsha 410083 China College of Materials and Advanced Manufacturing Hunan University of Technology Zhuzhou 412007 China School of Chemical and Materials Engineering National University of Sciences and Technology H-12 Islamabad Pakistan Research Institute for Advanced Manufacturing Department of Industrial and Systems Engineering The Hong Kong Polytechnic University Hong Kong 999077 China Department of Design and Engineering Faculty of Science and Technology Bournemouth University Poole Dorset BH12 5BB UK Materials Research Group Department of Mechanical Engineering University of Southampton Southampton SO17 1BJ UK

The interface coherence between precipitates and the matrix—whether coherent, semi-coherent, or incoherent—significantly impacts both the strength and ductility of metallic materials. An optimal balance between these properties can be achieved through manipulation of the precipitate/matrix interface. In this study, 1 wt.% and 2 wt.% TiN nanoparticles were introduced into a laser powder bed fusion (LPBF) fabricated CoCrMoW alloy as a reinforcing phase. Compared to the unreinforced alloy, the alloy with 1 wt.% TiN exhibited substantial improvements in yield strength, ultimate tensile strength, and fracture elongation, increasing from 876 MPa, 1190 MPa, and 15 % to 1071 MPa, 1421 MPa, and 17 %, respectively. Although the addition of TiN nanoparticles did not significantly affect the average grain size, it inhibited the formation of fine grains at the fusion line and influenced the overall grain size distribution. More importantly, the incorporation of TiN nanoparticles during the LPBF process led to the in-situ formation of semi-coherent precipitates rich in Ti and N, as well as coherent precipitates rich in Ti, N, and O. The semi-coherent precipitates, which exhibit well-defined orientation relationships and periodic misfit dislocations, enhanced strength by blocking stacking faults and ε laths. They also preserved plasticity by promoting self-relaxation through twinning at intersected areas, thus preventing crack nucleation at the interface. Furthermore, the chemical inhomogeneity between the coherent phase and the matrix increased resistance to dislocation cutting of the precipitates, thereby improving the material’s strength without compromising ductility.

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Black titanium dioxide nanomaterials for photocatalytic removal of pollutants:A review

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Journal of Materials science & Technology 2022年第17期112卷 239-262页

作者： Ying Liang Guohe Huang Xiaying Xin Yao Yao Yongping Li Jianan Yin Xiang Li Yuwei Wu Sichen Gao State Key Joint Laboratory of Environmental Simulation and Pollution Control School of EnvironmentBeijing Normal UniversityBeijing 100875China State Key Joint Laboratory of Environmental Simulation and Pollution Control China-Canada Center for EnergyEnvironment and Ecology ResearchUR-BNUSchool of EnvironmentBeijing Normal UniversityBeijing 100875China Department of Environmental Systems Engineering University of ReginaReginaSKS4S 0A2Canada State Key Laboratory of Marine Pollution(SKLMP) City University of Hong KongKowloonHong Kong SARChina Faculty of Engineering and Applied Science University of ReginaReginaSaskatchewanS4S 0A2Canada

Semiconductor photocatalysis is one of the most widely used environment-friendly technologies for removing various *** a well-developed photocatalyst,titanium dioxide(TiO_(2))still has limits in its wide bandgap and rapid recombination rate of photogenerated charge ***,black TiO_(2)appears as a strong candidate in the improvement of sunlight harvesting,because of its excellent absorption capacity and utilization of solar *** extensive applications in both environmental and energy fields,the use of black TiO_(2)as a photocatalyst in pollutant removal is *** primary objective of the review is to comprehensively evaluate the applications of black TiO_(2)in photocatalytic removal of contaminants,including conventional organic contaminants,emerging contaminants,microbes,and heavy *** basic properties,photocatalytic mechanism,and synthesis of black TiO_(2)have been summarized and ***,the stability and recoverability of black TiO_(2)have also been ***,the perspectives of the application of black TiO_(2)in pollutant removal have been further discussed.

关键词： Photocatalysis Back TiO_(2) Ti^(3+)self-doping Nanomaterials Pollutant removal

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Weighted Trudinger-Moser inequalities in the subcritical Sobolev spaces and their applications

arXiv

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arXiv 2024年

作者： Ikeda, Masahiro Sano, Megumi Taniguchi, Koichi Faculty of Science and Technology Keio University 3-14-1 Hiyoshi Kohoku-ku Yokohama223-8522 Japan Center for Advanced Intelligence Project RIKEN Japan Laboratory of Mathematics School of Engineering Hiroshima University Higashi-Hiroshima739-8527 Japan Department of Mathematical and Systems Engineering Faculty of Engineering Shizuoka University 3-5-1 Johoku Chuo-ku Shizuoka Hamamatsu432-8561 Japan

We study boundedness, optimality and attainability of Trudinger-Moser type maximization problems in the radial and the subcritical homogeneous Sobolev spaces W0 , rad1 , p (BRN) (p Copyright © 2024, The Authors. ... 详细信息

关键词： Sobolev spaces

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Hybrid Near-Far Field Channel Estimation for Holographic MIMO Communications

arXiv

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arXiv 2024年

作者： Yue, Shaohua Zeng, Shuhao Liu, Liang Eldar, Yonina C. Di, Boya The State Key Laboratory of Advanced Optical Communication Systems and Networks School of Electronics Peking University Beijing100871 China The Department of Electronic and Information Engineering The Hong Kong Polytechnic University Hong Kong The Faculty of Mathematics and Computer Science Weizmann Institute of Science Rehovot7610001 Israel

Holographic MIMO communications, enabled by large-scale antenna arrays with quasi-continuous apertures, is a potential technology for spectrum efficiency improvement. However, the increased antenna aperture size extends the range of the Fresnel region, leading to a hybrid near-far field communication mode. The users and scatterers randomly lie in near-field and far-field zones, and thus, conventional far-field-only and near-field-only channel estimation methods may not work. To tackle this challenge, we demonstrate the existence of the power diffusion (PD) effect, which leads to a mismatch between the hybrid-field channel and existing channel estimation methods. Specifically, in far-field and near-field transform domains, the power gain of one channel path may diffuse to other positions, thus generating fake paths. This renders the conventional techniques unable to detect those real paths. We propose a PD-aware orthogonal matching pursuit algorithm to eliminate the influence of the PD effect by identifying the PD range, within which paths diffuse to other positions. PD-OMP fits a general case without prior knowledge of near-field and far-field path numbers and the user’s location. The computational complexity of PD-OMP and the Cramér-Rao Lower Bound for the sparse-signal-recovery-based channel estimation are also derived. Simulation results show that PD-OMP outperforms state-of-the-art hybrid-field channel estimation methods. © 2024, CC BY-NC-ND.

关键词： Channel estimation

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