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Long-term performance of fiber-grid-reinforced asphalt overlay pavements: A case study of Korean national highways

Journal of Traffic and Transportation Engineering(English Edition) 2019年第4期6卷 366-382页

作者： Jong-hoon lee Seung-Beom Baek kang-hoon lee Jo-Soon Kim Jin-hoon Jeong Department of Civil Engineering Inha UniversityIncheon 22212South Korea Civil&Environmental BG Doosan Engineering&ConstructionSeoul 06057South Korea Department of Infrastructure Safety Research Korea Institute of Civil Engineering and Building TechnologyGoyang-si 10223South Korea SN Construction Co. LtdDaejeon 34573South Korea

The objective of this study was to verify the effect of fiber grid reinforcement on the longterm performance of asphalt overlay pavements by performing field investigation, laboratory test, and finite element analysis. Crack, rutting, roughness, and other miscellaneous distresses of fiber-grid-reinforced overlay sections and ordinary overlay sections were compared. Pavement conditions of fiber grid overlay sections before and after the overlay were also compared. Cores were obtained from the fiber-grid-reinforced and ordinary sections to measure bonding shear strength between the intermediate and overlay *** energy, displacement after yield, and shear stiffness of the cores were also obtained by analyzing the test results. Finite element analysis was performed by using the test results to validate the effect of the fiber grid reinforcement on the long-term performance of asphalt overlay pavements. Rutting and fatigue cracking were predicted for three cases: 1) fiber grid was not used;2) glass fiber grid was used;and 3) carbon fiber grid was used. The cracking ratio of fiber-grid-reinforced sections was much smaller than that of ordinary sections. The results of field investigation, laboratory test, and finite element analysis showed that the fiber grid reinforcement improved the long-term performance of asphalt overlay pavements.

关键词： Asphalt pavement Fiber grid reinforcement Overlay pavement Finite element analysis Bonding shear strength

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Data driven prediction of fragment velocity distribution under explosive loading conditions

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Defence Technology(防务技术) 2025年第1期43卷 109-119页

作者： Donghwan Noh Piemaan Fazily Songwon Seo Jaekun lee Seungjae Seo hoon Huh Jeong Whan Yoon Department of Mechanical Engineering Korea Advanced Institute of Science and Technology291 Daehak-roYuseong-guDaejeon 34141Republic of Korea Warhead System Team Precision Firepower Research DivisionPOONGSAN Defense R&D Institute2606-10 Hoguk-roAngang-OupKyung JuKyung-BukRepublic of Korea School of Engineering Deakin UniversityWauran PondsVIC 3216Australia

This study presents a machine learning-based method for predicting fragment velocity distribution in warhead fragmentation under explosive loading *** fragment resultant velocities are correlated with key design parameters including casing dimensions and detonation *** paper details the finite element analysis for fragmentation,the characterizations of the dynamic hardening and fracture models,the generation of comprehensive datasets,and the training of the ANN *** results show the influence of casing dimensions on fragment velocity distributions,with the tendencies indicating increased resultant velocity with reduced thickness,increased length and *** model's predictive capability is demonstrated through the accurate predictions for both training and testing datasets,showing its potential for the real-time prediction of fragmentation performance.

关键词： Data driven prediction Dynamic fracture model Dynamic hardening model Fragmentation Fragment velocity distribution High strain rate Machine learning

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Conversion of N-doped biochar from carotenoid-extracted Tetraselmis suecica and its application to produce supercapacitors

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Journal of Environmental Sciences 2025年第5期151卷 410-423页

作者： Se Hun lee kang Hyun lee Sang-hwa lee Soo Kweon lee Ok Sung Jeon Young Pyo Jeon Dongpyo Hong Young Joon Yoo Sang Yoon Park Hah Young Yoo Advanced Institute of Convergence Technology(AICT) Seoul National UniversitySuwon 16229Republic of Korea Department of Biotechnology Sangmyung University20 Hongjimun 2-GilJongno-GuSeoul 03016Republic of Korea Department of Bio-Convergence Engineering Dongyang Mirae University445-8Gyeongin-roGuro-guSeoul 08221Republic of Korea Fermentation team Lotte R&D Center210 Magokjungang-RoGangseo-GuSeoul 07594Republic of Korea School of Electronic Engineering Kyonggi UniversityGyeonggi-do 16227Republic of Korea

Microalgae are one of the promising feedstocks for biorefinery,contributing significantly to net-zero emissions through carbon capture and ***,the disposal of microalgal byproducts from the manufacturing process causes additional environmental pollution,thus,a new application strategy is *** this study,the Tetraselmis suecica byproduct from the carotenoid extraction process was carbonized and converted into *** converted biochar was proved to be nitrogen-doped biochar(NDB),up to 4.69%,with a specific surface area of 206.59m^(2)/g andwas used as an electrode for a *** NDB electrode(NDB-E)in half-cell showed a maximum specific capacitance of 191 F/*** a full-cell test,the NDB-E exhibited a high energy density of 7.396 Wh/kg and a high-power density of 18,100 W/kg,and maintained specific capacity of 95.5%after charge and discharge of 10,000 *** conclusion,our study demonstrated that the carotenoid-extracted microalgal byproducts are a useful resource for the supercapacitor *** approach is the first to convert *** into active materials for supercapacitors.

关键词： Microalgae Tetraselmis suecica Carbonization N-doped biochar Supercapacitor

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Walking for Mental Health: Effects of Mobile-Based Walking on Stress and Affectivity in College Students

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International Journal of Mental Health Promotion 2025年第2期27卷 179-191页

作者： Ye hoon lee Juhee Hwang Division of Global Sport Industry Hankuk University of Foreign Studies Gyeonggi-do 17035 Republic of Korea Graduate School of Global Sports Hankuk University of Foreign Studies Seoul 02450 Republic of Korea

Objectives: Recent research has shown that college students experience high levels of stress from various sources, which contribute to heightened rates of psychological distress and make them particularly vulnerable to mental health issues. Hence, we conducted a study, aimed to analyze the influence of a mobile-based walking routine on mental health outcomes, such as perceived stress and positive and negative affect. Methods: The participants were divided into two groups: the walking group ( N = 23) and the control group ( N = 24). The walking group engaged in an approximately 25-min walking session for at least 3 days per week, which was carefully monitored and facilitated with the help of the Nike Run Club application. The statistical analysis of the quantitative data was carried out with the help of SPSS 25.0. In addition to calculating descriptive statistics, we conducted an independent samples t -test, a repeated-measures ANOVA, and a paired sample t -test to analyze the effectiveness of the intervention. Results: A repeated-measures ANOVA revealed that the walking group exhibited significant reductions in perceived stress ( t = 2.03, p = 0.049, Cohen’s D = 0.60) and negative affect ( t = 2.19, p = 0.033, Cohen’s D = 0.65) after the intervention, whereas the control group showed no significant changes across time in any of the proposed variables. Conclusion: The results of the study continue to be indicative of the positive effects of regular walking on perceived stress and negative affect, preserving its role as a straightforward and accessible tool for reducing stress and negative affect.

关键词： Mental health low-intensity exercise mental health outcomes mobile intervention positive and negative affect

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Nasal cavity fungus ball discovered accidentally:A case report

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World Journal of Clinical Cases 2025年第5期13卷 44-48页

作者： Dae-Neung lee Dong hoon lee Sang Chul Lim Department of Otolaryngology-Head and Neck Surgery Chonnam National University Medical SchoolChonnam National University Hwasun HospitalHwasun 58128South Korea Department of Otolaryngology-Head and Neck Surgery Chonnam National University Medical SchoolHwasun HospitalChonnam National University Hwasun HospitalHwasun 58128South Korea Department of Otolaryngology-Head and Neck Surgery Chonnam National University Medical SchoolKwangju 501190South Korea

BACKGROUND Fungal balls within the nasal cavity are an exceedingly rare clinical entity,typically presenting with nonspecific symptoms or being identified *** SUMMARY This report presents an incidental discovery of a fungal ball in the nasal cavity during routine imaging,with no associated clinical *** This case underscores the importance of considering the possibility of asympto-matic presentations of nasal fungal balls,which may be detected incidentally during imaging evaluations.

关键词： Fungi Mycoses Fungus ball Nasal cavity Nasal surgical procedures Case report

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Extended protective effects of three dimensional cultured human mesenchymal stromal cells in a neuroinflammation model

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World Journal of Stem Cells 2025年第1期17卷 53-65页

作者： Ok-Hyeon Kim Hana kang Eun Seo Chang Younghyun Lim Young-Jin Seo Hyun Jung lee Department of Anatomy and Cell Biology College of MedicineChung-Ang UniversitySeoul 06974South Korea Department of Global Innovative Drugs Graduate School of Chung-Ang UniversitySeoul 06974South Korea Department of Life Science Chung-Ang UniversitySeoul 06974South Korea

BACKGROUND Human mesenchymal stromal cells(MSCs)possess regenerative potential due to pluripotency and paracrine ***,their stemness and immunomod-ulatory capabilities are sub-optimal in conventional two-dimensional(2D)*** To enhance the efficiency and therapeutic efficacy of MSCs,an in vivo-like 3D culture condition was *** MSCs were cultured on polystyrene(2D)or in a gellan gum-based 3D *** vitro,prostaglandin-endoperoxide synthase 2,indoleamine-2,3-dioxygenase,heme oxygenase 1,and prostaglandin E synthase gene expression was quantified by quantitative real-time polymerase chain *** were incubated with lipopolysaccharide(LPS)-treated mouse splenocytes,and prostaglandin E2 and tumor necrosis factor-alpha levels were measured by enzyme linked immuno-sorbent *** vivo,LPS was injected into the lateral ventricle of mouse brain,and MSCs were administered intravenously the next *** were sacrificed and analyzed on days 2 and *** Gellan gum polymer-based 3D culture significantly increased expression of octamer-binding transcription factor 4 and Nanog homeobox stemness markers in human MSCs compared to 2D *** 3D environment also heightened expression of cyclooxygenase-2 and heme-oxygenase 1,enzymes known for immunomodulatory functions,including production of prostaglandins and heme degradation,*** in 3D culture secreted more prostaglandin E2 and effectively suppressed tumor necrosis factor-alpha release from LPS-stimulated splenocytes and surpassed the efficiency of MSCs cultured in *** a murine neuroinflammation model,intravenous injection of 3D-cultured MSCs significantly reduced ionized calcium-binding adaptor molecule 1 and glial fibrillary acidic protein expression,mitigating chronic inflammation more effectively than 2D-cultured *** The microenvironment established in 3D culture serves as an in vivo mimetic,enhancing the immunomodulatory function of *** sugge

关键词： Mesenchymal stromal cells Three-dimensional culture Immunomodulatory function Neuroinflammation Cell therapy

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Advancements in Passive Wireless Sensing Systems in Monitoring Harsh Environment and Healthcare Applications

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Nano-Micro Letters 2025年第5期17卷 145-192页

作者： Wei Yue Yunjian Guo Jong‐Chul lee Enkhzaya Ganbold Jia-kang Wu Yang Li Cong Wang Hyun Soo Kim Young-Kee Shin Jun-Ge Liang Eun-Seong Kim Nam-Young Kim RFIC Bio Centre Kwangwoon UniversitySeoul 01897South Korea Department of Electronic Convergence Engineering Kwangwoon UniversitySeoul 01897South Korea Department of Electronic Engineering Jiangnan UniversityWuxi 214122People’s Republic of China School of Microelectronics Shandong UniversityJinan 250101People’s Republic of China School of Electronics and Information Engineering Harbin Institute of TechnologyHarbin 150001People’s Republic of China Department of Electronics Engineering Kwangwoon UniversitySeoul 01897South Korea Laboratory of Molecular Pathology and Cancer Genomics Department of Molecular Medicine and Biopharmaceutical SciencesGraduate School of Convergence Science and TechnologySeoul National UniversitySeoul 08826South Korea

Recent advancements in passive wireless sensor technology have significantly extended the application scope of sensing,particularly in challenging environments for monitoring industry and healthcare *** systems are equipped with battery-free operation,wireless connectivity,and are designed to be both miniaturized and *** features enable the safe,real-time monitoring of industrial environments and support high-precision physiological measurements in confined internal body spaces and on wearable epidermal *** the exploration into diverse application environments,the development of a systematic and comprehensive research framework for system architecture remains elusive,which hampers further optimization of these *** review,therefore,begins with an examination of application scenarios,progresses to evaluate current system architectures,and discusses the function of each component—specifically,the passive sensor module,the wireless communication model,and the readout module—within the context of key implementations in target sensing ***,we present case studies that demonstrate the feasibility of proposed classified components for sensing scenarios,derived from this systematic *** outlining a research trajectory for the application of passive wireless systems in sensing technologies,this paper aims to establish a foundation for more advanced,user-friendly applications.

关键词： Wireless sensing Passive detection Harsh environment Biomedical monitoring Flexible sensors

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Clinical and endoscopic characteristics of colorectal traditional serrated adenomas with dysplasia/adenocarcinoma in a Korean population

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World Journal of Gastrointestinal Oncology 2025年第2期17卷 119-131页

作者： Ki-Hyun Kim Eun Myung Hyung hoon Oh Chan-Muk Im Young-Eun Seo Je-Seong Kim Chae-June Lim Ga-Ram You Sung-Bum Cho Wan-Sik lee Myung-Giun Noh Kyung-Hwa lee Young-Eun Joo Department of Internal Medicine Chonnam National University Medical SchoolHwasun-eup 58128South Korea Department of Pathology Chonnam National University Medical SchoolHwasun-eup 58128South Korea

BACKGROUND Traditional serrated adenoma(TSA)is a rare and precancerous lesion of colorectal *** clinical and endoscopic differentiations between TSAs without dysplasia or adenocarcinoma(TSAOs)and TSAs with dysplasia or adenocarcinoma(TSADs)remain *** To evaluate the characteristics of colorectal TSAs and compare the characteristics of TSAOs with those of *** This retrospective study included 193 patients who underwent endoscopic resection and received a pathologic diagnosis of *** reviewed the medical,endoscopic,and histopathologic records of patients who underwent endoscopic resection of TSAs between January 2010 and December *** TSAs were more frequently located in the rectosigmoid *** TSAs had 0-Ip,0-Isp,or 0-Is *** TSAD lesions were larger than TSAO *** lesions more commonly had a red color and an irregular border than TSAO *** were usually treated using conventional endoscopic mucosal resection,whereas TSADs were treated using conventional endoscopic mucosal resection,endoscopic submucosal dissection,and ***-polypectomy bleeding was more common with TSADs than with *** analysis showed that gastrointestinal bleeding,red color,0-IIa,irregular border,and lobular mucosal surface were significantly associated with *** analysis showed that gastrointestinal bleeding,an irregular border,and a lobular mucosal surface were significantly associated with *** TSAs with gastrointestinal bleeding,an irregular border,and a lobular mucosal surface are associated with an increased risk of dysplasia or adenocarcinoma.

关键词： Traditional serrated adenoma Dysplasia Carcinoma Endoscopic features Gastrointestinal bleeding

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Half-Covered'Glitter-Cake'AM@SE Composite:A Novel Electrode Design for High Energy Density All-Solid-State Batteries

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Nano-Micro Letters 2025年第5期17卷 463-478页

作者： Min Ji Kim Jin-Sung Park Jin Woong lee Sung Eun Wang Dowoong Yoon Jong Deok lee Jung Hyun Kim Taeseup Song Ju Li Yun Chan kang Dae Soo Jung Energy and Environmental Division Korea Institute of Ceramic Engineering and TechnologyJinjuGyeongnam 52851Republic of Korea Department of Materials Science and Engineering Korea UniversityAnam-DongSeongbuk-GuSeoul 136-713Republic of Korea Department of Nuclear Science and Engineering Massachusetts Institute of TechnologyCambridgeMA 20139USA Department of Materials Science and Engineering Ajou UniversitySuwon 16499Republic of Korea Department of Energy Systems Research Ajou UniversitySuwon 16499Republic of Korea Department of Energy Engineering Hanyang UniversitySeoul 04763Republic of Korea Department of Materials Science and Engineering Massachusetts Institute of TechnologyCambridgeMA 02139USA

All-solid-state batteries(ASSBs)are pursued due to their potential for better safety and high energy ***,the energy density of the cathode for ASSBs does not seem to be satisfactory due to the low utilization of active materials(AMs)at high *** small amount of solid electrolyte(SE)powder in the cathode,poor electrochemical performance is often observed due to contact loss and non-homogeneous distribution of AMs and SEs,leading to high tortuosity and limitation of lithium and electron transport ***,we propose a novel cathode design that can achieve high volumetric energy density of 1258 Wh L^(-1)at high AM content of 85 wt%by synergizing the merits of AM@SE core–shell composite particles with conformally coated thin SE shell prepared from mechanofusion process and small SE *** core–shell structure with an intimate and thin SE shell guarantees high ionic conduction pathway while unharming the electronic *** addition,small SE particles play the role of a filler that reduces the packing porosity in the cathode composite electrode as well as between the cathode and the SE separator *** systematic demonstration of the optimization process may provide understanding and guidance on the design of electrodes for ASSBs with high electrode density,capacity,and ultimately energy density.

关键词： All-solid-state batteries Cathodes Sulfide-based solid electrolytes Interfaces Mechanofusion

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Adenosine triphosphate-binding pocket inhibitor for mixed lineage kinase domain-like protein attenuated alcoholic liver disease via necroptosis-independent pathway

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World Journal of Gastroenterology 2025年第6期31卷 44-61页

作者： Han-Ning Xuan Yuan Hyun Sung Kim Gye Ryeol Park Jae Eun Ryu Ji Eun Kim In Young kang Hye Young Kim Seung Min lee Ju Hee Oh Eileen L Yoon Dae Won Jun Department of Internal Medicine Hanyang University School of MedicineSeoul 04763South Korea Department of Pathology Hanyang University School of MedicineSeoul 04763South Korea Department of Translational Medicine Graduate School of Biomedical Science and EngineeringHanyang UniversitySeoul 04763South Korea Department of Obstetrics and Gynecology Institute of Women’s Medical Life ScienceYonsei Cancer CenterSeverance HospitalYonsei University College of MedicineSeoul 04763South Korea Department of Internal Medicine Sanggye Paik HospitalInje University College of MedicineSeoul 01757South Korea

BACKGROUND Mixed lineage kinase domain-like protein(MLKL)serves as a critical mediator in necroptosis,a form of regulated cell death linked to various liver *** study aims to specifically investigate the role of MLKL’s adenosine triphosphate(ATP)-binding pocket in facilitating necroptosis-independent pathways that may contribute to liver disease *** focusing on this mechanism,we seek to identify potential therapeutic targets that can modulate MLKL activity,offering new strategies for the prevention and treatment of liver-related *** To investigate the possibility of using the ATP-binding pocket-associated,necro-ptosis-independent MLKL pathway as a target for liver *** Cell death following necroptosis stimuli was evaluated using cell proliferation assays,flow cytometry,and electron microscopy in various *** human liver organoid system was used to evaluate whether the MLKL ATP pocket-binding inhibitor could attenuate ***,alcoholic and non-alcoholic fatty liver diseases animal models were used to determine whether MLKL ATP pocket inhibitors could attenuate liver *** While an MLKL ATP pocket-binding inhibitor did not prevent necroptosis-induced cell death in RAW 264.7 cells,it did reduce the necroptosis-led expression of CXCL2,ICAM,and ***,MLKL ATP pocket inhibitor diminishes the expression of CXCL2,ICAM,and VCAM by inhibiting the IκB kinase and nuclear factor kappa-B pathways without inducing necroptosis-induced cell death in two-dimensional cell culture as well as the human-derived liver organoid *** MLKL ATP-binding inhibitor was ineffective in non-alcoholic fatty liver disease animal models,MLKL ATP-binding inhibitor attenuated hepatic inflammation in the alcoholic liver disease *** MLKL ATP pocket-binding inhibitor exerted anti-inflammatory effects through the necroptosis-independent MLKL pathway in an animal model of alcoholic liver disease.

关键词： RAW 264.7 cell Cell death Necroptosis Mixed lineage kinase domain-like protein Non-alcoholic fatty liver disease Mixed lineage kinase domain-like protein adenosine triphosphate binding inhibitor Alcoholic liver disease

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