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Self-healable gels in electrochemical energy storage devices

Nano Research 2024年第4期17卷 3302-3323页

作者： Yang Li PeiPei Ding Yuzhe Gu Sheng Qian Yuncong Pang Lele Wang Jiayang Feng Baoguang Liu Qi Wan Ping Li Zhiwei Liu College of Electronic and Optical Engineering&College of Flexible Electronics(Future Technology) Nanjing University of Posts&Telecommunications(NJUPT)Nanjing 210023China State Key Laboratory of Organic Electronics and Information Displays&Jiangsu Key Laboratory for Biosensors Institute of Advanced Materials(IAM)Nanjing University of Posts and Telecommunications(NJUPT)Nanjing 210023China College of Materials Science&Engineering Beijing University of TechnologyBeijing 100124China Beijing Advanced Innovation Center for Materials Genome Engineering Institute for Advanced Materials and TechnologyUniversity of Science and Technology BeijingBeijing 100083China Pillar of Engineering Product Development Singapore University of Technology and DesignSingapore 487372Singapore School of Energy and Environmental Engineering University of Science and Technology BeijingBeijing 100083China

In the green energy and carbon-neutral technology,electrochemical energy storage devices have received continuously increasing attention ***,due to the unavoidable volume expansion/shrinkage of key materials or irreversible mechanical damages during application,the stability of energy storage and delivery as well as the lifetime of these devices are severely shortened,leading to serious performance degradation or even safety ***,the utilization of self-healable gels into electrochemical energy storage devices,such as electrodes,binders,and electrolytes,is proven as an effective method to realize long-term stable operation of these devices via the self-repairing of mechanical and electrochemical ***,this review first summarizes the feature and fabrication of different gels,paying special attention to hydrogels,organohydrogels,and ***,basic concepts and figure of merit of self-healable gels are analyzed with a detailed discussion at the healing mechanisms,from reversible dynamic bonds to physical molecular diffusion,and to external healing *** we introduce all the important parts of electrochemical energy storage devices,which could be replaced by healable gels to enhance the durability,including electrodes,binders,and ***,the critical challenges and future perspectives regarding the future development of healable gels based high-performance electrochemical energy storage devices or electronics are provided.

关键词： self-healable gels healing mechanisms electrodes binders gel electrolytes

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3D-printed Lunar regolith simulant-based geopolymer composites with bio-inspired sandwich architectures

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Journal of advanced Ceramics 2023年第3期12卷 510-525页

作者： Siqi Ma Yuqi Jiang Shuai Fu Peigang He Chengyue Sun Xiaoming Duan Dechang Jia Paolo Colombo Yu Zhou Institute for Advanced Ceramics School of Materials Science and EngineeringHarbin Institute of TechnologyHarbin 150001China Key Laboratory of Advanced Structural–Functional Integration Materials&Green Manufacturing Technology Harbin Institute of TechnologyHarbin 150001China Max Planck Institute for Polymer Research Mainz 5512Germany Laboratory for Space Environment and Physical Sciences Harbin Institute of TechnologyHarbin 150001China Department of Industrial Engineering University of PadovaPadova 35122Italy Department of Materials Science and Engineering The Pennsylvania State UniversityPhiladelphia 16802USA

Over time,natural materials have evolved to be lightweight,high-strength,tough,and damage-tolerant due to their unique biological ***,combining biological inspiration and structural design would provide traditional materials with a broader range of performance and ***,the application of an ink-based three-dimensional(3D)printing strategy to the structural design of a Lunar regolith simulant-based geopolymer(HIT-LRS-1 GP)was first reported,and high-precision carbon fiber/quartz sand-reinforced biomimetic patterns inspired by the cellular sandwich structure of plant stems were *** study demonstrated how different cellular sandwich structures can balance the structure–property relationship and how to achieve unprecedented damage tolerance for a geopolymer *** results presented that components based on these biomimetic architectures exhibited stable non-catastrophic fracture characteristics regardless of the compression direction,and each structure possessed effective damage tolerance and anisotropy of mechanical *** results showed that the compressive strengths of honeycomb sandwich patterns,triangular sandwich patterns,wave sandwich patterns,and rectangular sandwich patterns in the Y-axis(Z-axis)direction were 15.6,17.9,11.3,and 20.1 MPa(46.7,26.5,23.8,and 34.4 MPa),respectively,and the maximum fracture strain corresponding to the above four structures could reach 10.2%,6.7%,5.8%,and 5.9%(12.1%,13.7%,13.6%,and 13.9%),respectively.

关键词： Lunar regolith simulant(LRS) three-dimensional(3D)printing geopolymer(GP) in situ resource utilization(ISRU) bio-inspired patterns damage tolerance

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design and performance study of a dielectric-filled cavity beam current monitor for HUST-PTF

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Nuclear Science and Techniques 2023年第8期34卷 75-85页

作者： Ji-Qing Li Kuan-Jun Fan Zheng-Zheng Liu Jian Wang Qu-Shan Chen Jin-Feng Yang State Key Laboratory of Advanced Electromagnetic Engineering and Technology School of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhan 430074China The Institute of Scientific and Industrial Research Osaka University8-1 MihogaokaIbarakiOsaka 567-0047Japan

To guarantee the exact proton dose applied to patients and ensure treatment safety while disrupting and destroying tumor cells,it is essential to accurately monitor the proton beam current in real time during patient *** clinical treatment requires a proton beam current in the∼nA range,nondestructive beam current monitors(BCMs)are preferred to minimize the degradation of beam ***,this poses significant challenges in accurately monitoring such extremely low beam *** study proposes a cavity-type BCM equipped with a dielectric plate to reduce its dimensions and achieve sufficient measurement sensitivity for practical requirements.A prototype cavity BCM was fabricated,and off-line testing was performed using a metal wire to simulate the beam to study its *** the simulation and experi-mental results showed that the cavity BCM could measure ultralow proton beam currents with a resolution up to 0.03 nA.

关键词： Proton therapy Beam current Cavity BCM Nondestructive

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Preliminary Measurements of Wind Noise from a Vertical Axis Wind Turbine with Helical Blades Having a Wide Range of Helical Angles 13

Preliminary Measurements of Wind Noise from a Vertical Axis ...

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13th IEEE Global Conference on Consumer Electronic, GCCE 2024

作者： Mizumaki, Mayu Takahashi, Yoshinori Mashidori, Hideto Tokyo Metropolitan College of Industrial Technology Mechanical Engineering Program Advanced Course Tokyo Japan Kogakuin University Department of Information Design Tokyo Japan Tokyo Metropolitan College of Industrial Technology Aerospace Engineering Course Tokyo Japan

ISBN: (纸本)9798350355079

Preliminary wind noise experiments on a wind turbine with a wide range of helix angle condition blades, including excessive angles, were conducted to investigate helix angle conditions that reduce wind shear noise. The wind turbine used in the experiment had three helical blades, with helix angles varying from 0° to 150°. Blades with a helix angle of 0° are straight blades. When the three blades are evenly distributed on the circumference, the blades are 120° apart. Therefore, a blade with helical angles greater than 120° and 150° has an angular position that overlaps that of the neighboring blade. Preliminary experiments were conducted to measure and evaluate the wind shear noise of vertical-axis wind turbines possessing a wide range of helical angle condition blades, including such excessive helical angles. In preliminary experiments, the wind noise generated when a windmill was rotated at a constant speed using a motor in a windless anechoic chamber was measured. The experimental results showed that wind noise was reduced the most when the twist angle was 150°, despite the excessive twist angle condition. © 2024 IEEE.

关键词： Anechoic chambers

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Deep learning classification system for coconut maturity levels based on acoustic signals 12

Deep learning classification system for coconut maturity lev...

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12th IEEE Region 10 Humanitarian technology Conference, R10-HTC 2024

作者： Caladcad, June Anne Piedad, Eduardo University of San Jose-Recoletos Department of Industrial Engineering Cebu6000 Philippines Advanced Science and Technology Institute Department of Science and Technology Quezon1101 Philippines

ISBN: (纸本)9798350340204

The advancement of computer image processing, pattern recognition, signal processing, and other technologies has gradually replaced the manual methods of classifying fruit with computer and mechanical methods. In the field of agriculture, the intelligent classification of post-harvested fruit has enabled the use of smart devices that creates a direct impact on farmers, especially on export products. For coconut classification, it remains to be traditional in process. This study presents a classification of the coconut dataset based on acoustic signals. To address the imbalanced dataset, a data augmentation technique was conducted through audiomentation and procedural audio generation methods. Audio signals under premature, mature, and overmature now have 4,050, 4,050, and 5,850 audio signals, respectively. To address the updation of the classification system and the classification accuracy performance, deep learning models were utilized for classifying the generated audio signals from data generation. Specifically, RNN and LSTM models were trained and tested, and their performances were compared with each other and the machine learning methods used by Caladcad et al. (2020). The two DL models showed impressive performance with both having an accuracy of 97.42% and neither of them outperformed the other since there are no significant differences in their classification performance. © 2024 IEEE.

关键词： Fruits

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Class selection problem in university using optimization problem 14

Class selection problem in university using optimization pro...

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14th IIAI International Congress on advanced Applied Informatics, IIAI-AAI 2023

作者： Maruyama, Hiroyuki Takahashi, Satoshi Matsuo, Tokuro Advanced Institute of Industrial Technology Takushoku University Graduate School of Industrial Technology and Faculty of Commerce Tokyo Japan The University of Electro-Communication Graduate School of Informatics and Engineering Tokyo Japan Advanced Institute of Industrial Technology Graduate School of Industrial Technology Tokyo Japan

ISBN: (纸本)9798350324228

Schools offer a variety of course selections. In this research, we assumed the course selection in the university, and created the decision problem of the course of the student using the optimization problem. We also performed numerical experiments to confirm the usefulness of the model. The model could be solved in a practical time, and it was confirmed that there was a change in the student's learning situation. This research is a very important problem that spans three fields: education, information communication, and decision making. © 2023 IEEE.

关键词： Decision making

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SMA-MVS: Segmentation-Guided Multi-Scale Anchor Deformation Patch Multi-View Stereo

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IEEE Transactions on Circuits and Systems for Video technology 2025年第6期35卷 5724-5737页

作者： Yin, Yufeng Liu, Xiaoyan Zhang, Zichao Hunan University National Engineering Laboratory for Robot Visual Perception and Control Technology College of Electrical and Information Engineering Changsha410082 China Innovation Institute of Industrial Design and Machine Intelligence Quanzhou-Hunan University Quanzhou362006 China

Multi-view stereo aims to recover the 3D model of a scene from a set of images. However, low-textured areas in the scene have always been a challenge in 3D reconstruction. In this work, we propose a segmentation-guided multi-scale anchor deformation patch multi-view stereo. Specifically, we use the Segment Anything Model to distinguish different instances in the scene, and propose an anchor deformation strategy guided by segmentation to adaptively generate a multi-scale anchor patch, so that the depth can be refined from coarse to fine scales. To propagate a better hypothesis for low-textured areas where photometric consistency is unreliable, we propose a non-local adaptive propagation scheme by using the segmented mask as a propagation domain. In order to reduce the interference of illumination on reconstruction completeness, we propose an outlier depth cost refinement guided by reliable points that improves the performance of depth estimation in unevenly illuminated areas. As a result, our method achieves state-of-the-art performance among traditional methods and exhibits better generalization capabilities on the ETH3D, Tanks and Temples, and DTU datasets. © 1991-2012 IEEE.

关键词： Image segmentation

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Research progress on sustainability of key tire materials

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SusMat 2023年第5期3卷 581-608页

作者： Sai Deng Ruixin Chen Shiyu Duan Qingxiu Jia Xinmin Hao Liqun Zhang Center of Advanced Elastomer Materials Beijing University of Chemical TechnologyBeijingChina School of Materials Design and Engineering Beijing Institute of Fashion TechnologyBeijingChina Systems Engineering Institute Academy of Military SciencesBeijingChina

In recent years,countries worldwide have engaged actively in the research and development of green and sustainable materials in the face of the increasing depletion of petroleum resources,the need to reduce material waste,and the environmental pollution caused by the various types of *** the tire industry,the key materials for the various components of tires are mostly dependent on petroleum *** of green tires and green processing technologies using sustainable materials is an important development direction for the future of the tire industry,and many tire-manufacturing companies have proposed their visions for the development of eco-friendly ***,cord fabric,and additives are the main materials used in tire *** article summarizes the research status of the green materials that can meet the requirements of environmental friendliness and sustainability,replace traditional materials,and reduce petroleum resource consumption in existing tire *** materials mainly include natural rubber or bio-based synthetic rubber,green renewable cord fabrics,and green processing *** prospects for the application of these new green materials in tire manufacturing are also discussed.

关键词： additives cord fabric green tires sustainability

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Two-stage dynamic recrystallization and texture evolution in Al-7Mg alloy during hot torsion

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International Journal of Minerals,Metallurgy and Materials 2024年第8期31卷 1900-1911页

作者： Kwang Tae Son Chang Hee Cho Myoung Gyun Kim Ji Woon Lee School of Mechanical Industrialand Manufacturing EngineeringOregon State UniversityCorvallis OR 97331USA Department of Materials Science Engineering Northwestern UniversityEvanston IL 60208USA Research Institute of Industrial Science and Technology(RIST) Pohang 37673Rep.of Korea Division of Advanced Materials Engineering Kongju National UniversityCheonan 31080Rep.of Korea Center for Advanced Materials and Parts of Powders Kongju National UniversityCheonan 31080Rep.of Korea

Hot torsion tests were performed on the Al-7Mg alloy at the temperature ranging from 300 to 500℃ and strain rates between 0.05 and 5 s^(-1) to explore the progressive dynamic recrystallization(DRX)and texture *** DRX behavior of the alloy manifested two distinct stages:Stage 1 at strain of≤2 and Stage 2 at strains of≥*** Stage 1,there was a slight increase in the DRXed grain fraction(X_(DRX))with predominance of discontinuous DRX(DDRX),followed by a modest change in X_(DRX) until the transition to Stage *** 2 was marked by an accelerated rate of DRX,culminating in a substantial final X_(DRX) of~*** backscattered diffraction(EBSD)analysis on a sample in Stage 2 revealed that continuous DRX(CDRX)predominantly occurred within the(121)[001]grains,whereas the(111)[110]grains underwent a geometric DRX(GDRX)evolution without a noticeable sub-grain ***,a modified Avrami’s DRX kinetics model was utilized to predict the microstructural refinement in the Al-7Mg alloy during the DRX *** this kinetics model did not accurately capture the DDRX behavior in Stage 1,it effectively simulated the DRX rate in Stage *** texture index was employed to assess the evolution of the texture isotropy during hot-torsion test,demonstrating significant improvement(>75%)in texture randomness before the commencement of Stage *** initial texture evolution is attributed to the rotation of parent grains and the substructure evolution,rather than to an increase in X_(DRX).

关键词： Al-7Mg alloys hot deformation hot torsion tests dynamic recrystazlliation microstructure texture

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Review of Interaction of Bullets and Fragments With Skin-Bone-Muscle Parenchyma

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Journal of engineering and Science in Medical Diagnostics and Therapy 2025年第4期8卷 040801页

作者： Pandey, Punit Kumar Joshi, Y.K. Ganpule, S.G. Department of Mechanical and Industrial Engineering Indian Institute of Technology Roorkee Roorkee247667 India Terminal Ballistics Research Laboratory Sector 30 Chandigarh160030 India Department of Design Indian Institute of Technology Roorkee Roorkee247667 India

Penetrating projectile injuries from bullets and fragments remain a leading cause of casualties in modern warfare. Understanding the mechanical interaction of these projectiles with biological tissues is crucial for designing and optimizing both modern ammunition and protective systems. Toward this end, we review the mechanics of the interaction of the projectiles with various biological tissues. The review focuses on the relationship between projectile characteristics (velocity, shape, design), specific tissue, and the resulting injury. The aim is to understand the relationship between these factors and the energy or energy density required to inflict specific tissue-specific injuries. The review highlights the distinct failure mechanisms for each tissue for bullets and fragments. Skin failure is manifested by a combination of crushing, shearing, and elastic hole enlargement. Bone fracture predominantly shows conical cavity formation and associated radial and concentric cracks. Muscle and brain failures involve shearing and temporary cavity formation. Eye, due to its delicate nature, is highly susceptible to penetration by small projectiles with minimal compression. The data suggests significant variations in the energy density needed for perforation depending on the tissue type and projectile characteristics. For example, skin perforation requires a lower energy density (0.1-0.2 J/mm2) compared to bone (0.05-3.2 J/mm2). Further, the traditional 80 J energy criteria of a projectile for defining the lethality threshold might be overly conservative, especially for smaller projectiles. This review also highlights the importance of considering energy density as casualty criteria. Copyright © 2025 by ASME.

关键词： Bone

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