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Detection of damage locations and damage steps in pile foundations using acoustic emissions with deep learning technology

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Frontiers of Structural and Civil Engineering 2021年第2期15卷 318-332页

作者： Alipujiang JIERULA Tae-Min OH Shuhong WANG Joon-Hyun LEE hyunwoo kim Jong-Won LEE School of Resource&Civil Engineering Northeastern UniversityShenyang110819China School of Mechanical Engineering Pusan National UniversityBusan46241Korea Department of Civil and Environmental Engineering Pusan National UniversityBusan46241Korea Korea Institute of Geoscience and Mineral Resource(KIGAM) Daejeon34132Korea

The aim of this study is to propose a new detection method for determining the damage locations in pile foundations based on deep learning using acoustic emission ***,the damage location is simulated using a back propagation neural network deep learning model with an acoustic emission data set acquired from pile hit *** particular,the damage location is identified using two parameters:the pile location(PL)and the distance from the pile cap(DS).This study investigates the influences of various acoustic emission parameters,numbers of sensors,sensor installation locations,and the time difference on the prediction accuracy of PL and *** addition,correlations between the damage location and acoustic emission parameters are ***,the damage step condition is determined using a classification model with an acoustic emission data set acquired from uniaxial compressive strength ***,a new damage detection and evaluation method for pile foundations is *** new method is capable of continuously detecting and evaluating the damage of pile foundations in service.

关键词： pile foundations damage location acoustic emission deep learning damage step

Alternating current electrolysis:A photoredox catalysis mimic and beyond

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Green Synthesis and Catalysis 2022年第1期3卷 4-10页

作者： Junsong Zhong Chenglin Ding hyunwoo kim Terry McCallum Keyin Ye Institute of Pharmaceutical Science and Technology College of ChemistryFuzhou UniversityFuzhou 350108China Department of Chemistry and Nanoscience Ewha Womans UniversitySeoul 03760South Korea The Canadian Bank Note Company OttawaOntario 91758Canada State Key Laboratory of Physical Chemistry of Solid Surfaces Xiamen UniversityXiamen 361005China

Alternating current electrolysis(ACE)is an emerging powerful synthetic tool,which principally resembles photoredox catalysis *** periodically alternating polarity feature allows oxidation and reduction processes to take place on the same electrode surface in a well-controlled manner via the fine-tuning of current frequency along with other reaction ***,many challenging transformations in typical direct electrolysis,including constant current electrolysis or constant potential electrolysis,could be achieved via *** recent advances in the organic synthesis using this emerging technology and its advantages over direct electrolysis are highlighted.

关键词： Electrochemistry Photoredox catalysis Alternating current electrolysis Green chemistry Selectivity

Balancing control of unicycle robot by using sliding control

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Journal of Measurement Science and Instrumentation 2012年第4期3卷 383-388页

作者： Inwoo Han Jaewon An hyunwoo kim Jangmyung Lee Dept.of Electrical Engineering Pusan National University

This paper discusses about balancing control of unicycle *** robot consists of pitch which acts like inverted pendulum and roll which acts like reaction wheel *** robot which does not have actuator located in yaw axis is made to derive the simple *** equation is applied to deriving dynamic *** dynamic equations are used to design the sliding mode *** variables of the designed control are pitch angle and roll *** mode control has chattering problem,which is eliminated by using the sigmoid function as switching *** the control performance and eliminated chattering problem is verified by simulation.

关键词： balancing control sliding control dynamic equation lagrange unicycle robot

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机器仿生眼的多任务学习人脸分析

模式识别与人工智能 2019年第1期32卷 10-16页

作者：樊迪 hyunwoo kim 陈晓鹏刘云辉黄强北京理工大学机电学院北京100081 香港中文大学机械与自动化工程学系

智能机器人中人机交互的性能至关重要,人脸分析可以使人机交互变得更友善.文中提出可以同时进行笑容识别和性别分类的多任务学习卷积神经网络,同时学习存在内在相关性的任务,提升单个任务的性能.在Celeb A数据集的测试集上,文中网络在... 详细信息

智能机器人中人机交互的性能至关重要,人脸分析可以使人机交互变得更友善.文中提出可以同时进行笑容识别和性别分类的多任务学习卷积神经网络,同时学习存在内在相关性的任务,提升单个任务的性能.在Celeb A数据集的测试集上,文中网络在笑容识别任务和性别分类任务中均获取较高准确率.在设计的机器仿生眼上验证文中模型,获得良好的笑容识别效果和性别分类效果.文中对人脸分析进行的研究可以提升与机器仿生眼人机交互的能力.

关键词：人脸分析多任务学习卷积神经网络笑容识别性别分类机器仿生眼

Role of glutathione transferase in phase separation of FUS and TAF15 in neurons

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Neural Regeneration Research 2025年第7期20卷 1999-2000页

作者： Kiyoung kim Department of Medical Science Soonchunhyang UniversityAsanKorea

Amyotrophic lateral sclerosis(ALS)is a progressive neurodegenerative disorder characterized by the degeneration of motor neurons in the brain and spinal cord,leading to muscle weakness,paralysis,and ultimately death(Cleveland and Rothstein,2001).Frontotemporal lobar degeneration(FTLD)is a neurodegenerative disease affecting the frontal and temporal lobes of the brain,leading to changes in behavior,personality,and language(Van Langenhove et al.,2012).Both ALS and FTLD are classified as proteinopathies in which abnormal protein aggregation and accumulation in neurons contribute to the disease *** in sarcoma(FUS)is a DNA/RNA-binding protein involved in various cellular processes,including transcriptional regulation,RNA splicing,and DNA *** in the FUS gene have been linked to familial ALS,highlighting the importance of FUS in the disease pathogenesis(Vance et al.,2009).In ALS and FTLD,aberrant post-translational modifications(PTMs)of FUS,such as phosphorylation,acetylation,and methylation,have been implicated in the promotion of FUS aggregation and neurotoxicity(Choi et al.,2023).Therefore,understanding the regulatory mechanisms of FUS PTMs is crucial for developing targeted therapies against these diseases.

关键词： degeneration FUS aggregation

Carboplatin restores neuronal toxicity in FUS-linked amyotrophic lateral sclerosis

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Neural Regeneration Research 2025年第8期20卷 2319-2320页

作者： Kiyoung kim Department of Medical Science Soonchunhyang UniversityAsanKorea

Amyotrophic lateral sclerosis(ALS),also known as Lou Geh rig's disease,is a progressive neurodegenerative disorder that affects motor neurons in the brain and spinal *** leads to muscle weakness,paralysis,and ultimate... 详细信息

关键词： paralysis sclerosis respiratory

Recovery of the injured neural system through gene delivery to surviving neurons in Parkinson’s disease

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Neural Regeneration Research 2025年第10期20卷 2855-2861页

作者： Chanchal Sharma Sehwan kim Hyemi Eo Sang Ryong kim School of Life Science Kyungpook National UniversityDaeguKorea BK21 FOUR KNU Creative BioResearch Group Kyungpook National University DaeguKorea Brain Science and Engineering Institute Kyungpook National UniversityDaeguKorea

A critical unaddressed problem in Parkinson’s disease is the lack of therapy that slows or hampers *** medications effectively manage symptoms,they offer no long-term benefit because they fail to address the underlying neuronal *** highlights that the elusive goals of halting progression and restoring damaged neurons limit the long-term impact of current *** clinical trials using gene therapy have demonstrated the safety of various vector delivery systems,dosages,and transgenes expressed in the central nervous system,signifying tangible and substantial progress in applying gene therapy as a promising Parkinson’s disease ***,at diagnosis,many dopamine neurons remain in the substantia nigra,offering a potential window for recovery and *** propose that modulating these surviving dopamine neurons and axons in the substantia nigra and striatum using gene therapy offers a potentially more impactful therapeutic approach for future ***,innovative gene therapies that focus on preserving the remaining elements may have significant potential for enhancing long-term outcomes and the quality of life for patients with Parkinson’s *** this review,we provide a perspective on how gene therapy can protect vulnerable elements in the substantia nigra and striatum,offering a novel approach to addressing Parkinson’s disease at its core.

关键词： adeno-associated virus gene therapy neuroprotection neurorestoration neurotrophic factor nigrostriatal dopamine pathway pro-survival protein

High mobility group box 1 in the central nervous system:regeneration hidden beneath inflammation

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Neural Regeneration Research 2025年第1期20卷 107-115页

作者： Hanki kim Bum Jun kim Seungyon Koh Hyo Jin Cho Xuelian Jin Byung Gon kim Jun Young Choi Department of Brain Science Ajou University School of MedicineSuwonSouth Korea Department of Biomedical Sciences Ajou University Graduate School of MedicineSuwonSouth Korea Department of Neurology Ajou University School of MedicineSuwonSouth Korea Department of Geriatrics The Affiliated Suqian First People’s Hospital of Nanjing Medical UniversitySuqianJiangsu ProvinceChina

High-mobility group box 1 was first discovered in the calf thymus as a DNA-binding nuclear protein and has been widely studied in diverse fields,including neurology and ***-mobility group box 1 in the extracellular space functions as a pro-inflammatory damage-associated molecular pattern,which has been proven to play an important role in a wide variety of central nervous system disorders such as ischemic stroke,Alzheimer’s disease,frontotemporal dementia,Parkinson’s disease,multiple sclerosis,epilepsy,and traumatic brain *** drugs that inhibit high-mobility group box 1 as a damage-associated molecular pattern,such as glycyrrhizin,ethyl pyruvate,and neutralizing anti-high-mobility group box 1 antibodies,are commonly used to target high-mobility group box 1 activity in central nervous system *** it is commonly known for its detrimental inflammatory effect,high-mobility group box 1 has also been shown to have beneficial pro-regenerative roles in central nervous system *** this narrative review,we provide a brief summary of the history of high-mobility group box 1 research and its characterization as a damage-associated molecular pattern,its downstream receptors,and intracellular signaling pathways,how high-mobility group box 1 exerts the repair-favoring roles in general and in the central nervous system,and clues on how to differentiate the pro-regenerative from the pro-inflammatory *** targeting high-mobility group box 1 in the central nervous system may benefit from differentiating between the two functions rather than overall suppression of high-mobility group box 1.

关键词： central nervous system damage-associated molecular pattern ethyl pyruvate glycyrhizzin high mobility group box 1 inflammation neural stem cells neurodevelopment oligodendrocyte progenitor cells redox status regeneration

Ultra‑Transparent and Multifunctional IZVO Mesh Electrodes for Next‑Generation Flexible Optoelectronics

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Nano-Micro Letters 2025年第1期17卷 293-309页

作者： Kiran A.Nirmal Tukaram D.Dongale Atul C.Khot Chenjie Yao Nahyun kim Tae Geun kim School of Electrical Engineering Korea UniversityAnam‑ro 145Seongbuk‑guSeoulRepublic of Korea Computational Electronics and Nanoscience Research Laboratory School of Nanoscience and BiotechnologyShivaji UniversityKolhapur 416004India

Mechanically durable transparent electrodes are essential for achieving long-term stability in flexible optoelectronic ***,they are crucial for applications in the fields of energy,display,healthcare,and soft *** meshes represent a promising alternative to traditional,brittle,metal oxide conductors due to their high electrical conductivity,optical transparency,and enhanced mechanical *** this paper,we present a simple method for fabricating an ultra-transparent conducting metal oxide mesh electrode using selfcracking-assisted *** this method,we produced an electrode with ultra-transparency(97.39%),high conductance(Rs=21.24Ωsq^(−1)),elevated work function(5.16 eV),and good mechanical *** also evaluated the effectiveness of the fabricated electrodes by integrating them into organic photovoltaics,organic light-emitting diodes,and flexible transparent memristor devices for neuromorphic computing,resulting in exceptional device *** addition,the unique porous structure of the vanadium-doped indium zinc oxide mesh electrodes provided excellent flexibility,rendering them a promising option for application in flexible optoelectronics.

关键词： Self-cracking template Vanadium-doped indium zinc oxide mesh Organic solar cells Organic light-emitting diodes Flexible transparent memory