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Supramolecular Polymer Intertwined Free-Standing Bifunctional Membrane Catalysts for All-Temperature Flexible Zn-Air Batteries

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Nano-Micro Letters 2022年第11期14卷 341-360页

作者： Nayantara K.Wagh Sambhaji S.Shinde chi ho lee Sung-Hae Kim Dong-Hyung Kim Han-Don Um Sang Uck lee Jung-ho lee Department of Materials Science and Chemical Engineering Hanyang UniversityAnsanRepublic of Korea Department of Applied Chemistry Center for Bionano Intelligence Education and ResearchHanyang UniversityAnsanRepublic of Korea Department of Chemical Engineering Kangwon National UniversityChuncheonGangwon 24341Republic of Korea

Rational construction of flexible free-standing electrocatalysts featuring long-lasting durability,high efficiency,and wide temperature tolerance under harsh practical operations are fundamentally significant for commercial zinc-air ***,3D flexible free-standing bifunctional membrane electrocatalysts composed of covalently cross-linked supramolecular polymer networks with nitrogen-deficient carbon nitride nanotubes are fabricated(referred to as PEMAC@NDCN)by a facile self-templated ***@NDCN demonstrates the lowest reversible oxygen bifunctional activity of 0.61 V with exceptional long-lasting durability,which outperforms those of commercial Pt/C and RuO_(2).Theoretical calculations and control experi-ments reveal the boosted electron transfer,electrolyte mass/ion transports,and abundant active surface site ***,the constructed alkaline Zn-air battery with PEMAC@NDCN air-cathode reveals superb power density,capacity,and discharge-charge cycling stability(over 2160 cycles)compared to the reference Pt/C+RuO_(2).Solid-state Zn-air batteries enable a high power density of 211 mW cm^(−2),energy density of 1056 Wh kg^(−1),stable charge-discharge cycling of 2580 cycles for 50 mA cm^(−2),and wide temperature tolerance from−40 to 70℃with retention of 86%capacity compared to room-temperature counterparts,illustrating prospects over harsh operations.

关键词： Flexible free-standing membrane electrocatalysts Supramolecular polymer Alkaline and flexible solid-state Zn-air batteries All-temperature operations High capacity and energy density

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Adaptive data fusion framework for modeling of non-uniform aerodynamic data

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chinese Journal of Aeronautics 2023年第7期36卷 316-336页

作者： Vinh PHAM Maxim TYAN Tuan Anh NGUYEN chi-ho lee L.V.Thang NGUYEN Jae-Woo lee Department of Aerospace Information Engineering Konkuk UniversitySeoul 05029Republic of Korea Konkuk Aerospace Design-Airworthiness Institute Konkuk UniversitySeoul 05029Republic of Korea

Multi-fidelity Data Fusion(MDF)frameworks have emerged as a prominent approach to producing economical but accurate surrogate models for aerodynamic data modeling by integrating data with different fidelity ***,most existing MDF frameworks assume a uniform data structure between sampling data sources;thus,producing an accurate solution at the required level,for cases of non-uniform data structures is *** address this challenge,an Adaptive Multi-fidelity Data Fusion(AMDF)framework is proposed to produce a composite surrogate model which can efficiently model multi-fidelity data featuring non-uniform ***,the design space of the input data with non-uniform data structures is decomposed into subdomains containing simplified ***,different MDF frameworks and a rule-based selection process are adopted to construct multiple local models for the subdomain *** the other hand,the Enhanced Local Fidelity Modeling(ELFM)method is proposed to combine the generated local models into a unique and continuous global ***,the resulting model inherits the features of local models and approximates a complete database for the whole design *** validation of the proposed framework is performed to demonstrate its approximation capabilities in(A)four multi-dimensional analytical problems and(B)a practical engineering case study of constructing an F16C fighter aircraft’s aerodynamic *** comparisons of the generated models using the proposed AMDF framework and conventional MDF approaches using a single global modeling algorithm are performed to reveal the adaptability of the proposed approach for fusing multi-fidelity data featuring non-uniform ***,the results indicated that the proposed framework outperforms the state-of-the-art MDF approach in the cases of non-uniform data.

关键词： Aerodynamic modeling Data fusion Diverse data structure Multi-fidelity data Multi-fidelity surrogate modeling

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Gyejibokryeong-Hwan improves recovery of injured muscles in mouse model of muscle contusion

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Journal of Traditional chinese Medicine 2021年第3期41卷 406-413页

作者： chi ho lee Jeong June Choi Joo Hye Sim Younmin Shin Seung-Joon Oh Ji-Hyang Gu Hyun Ju Ha Dong Hwi Jeon Eun-Jung lee Min-Seok Oh Department of Korean Medicine Rehabilitation College of Korean MedicineDaejeon UniversityDaejeon 34520Republic of Korea Laboratory of Molecular Medicine College of Korean MedicineDaejeon UniversityDaejeon 34520Republic of Korea

OBJECTIVE: To investigate the effects of Gyejibokryeong-Hwan(Guizhifuling-wan, GBH) on muscle injury in a mouse model of muscle ***: C57/BL6 mouse biceps femoris muscles were injured using the drop-mass method and injured animals were treated orally with GBH(50,100, or 500 mg/kg) once a day for 7 d. Open field and treadmill running tests were performed to assess functional recovery from muscle injury. The production of pro-inflammatory cytokines was examined by enzyme-linked immunosorbent assay and Western blotting analysis. Expression of the muscle regeneration biomarkers, myoblast determination(Myo D), myogenic factor 5(Myf5), and smooth muscle actin(α-SMA), in the biceps femoris muscle was investigated at the protein and m RNA level by Western blotting and real time-PCR, respectively. Histological analysis was performed using hematoxylin and eosin staining. Finally, myosin heavy chain production was investigated in differentiated C2C12 myoblasts in the presence of ***: GBH treatment markedly improved locomotion and running behavior. GBH significantly inhibited the secretion of monocyte chemoattractant protein-1 into the bloodstream in muscle-contused animals. The levels of Myo D, Myf5, and α-SMA protein and m RNA were significantly up-regulated by GBH in injured muscle tissue. Histological studies suggested that GBH facilitated recovery from muscle damage. however, GBH did not induce the production of myosin heavy chain in ***: Overall, the present study suggested that GBH improves the recovery of the injured muscles in the mouse model of muscle contusion.

关键词： muscles wounds and injuries contusions regeneration muscle skeletal myogenic regulatory factor 5 Gyejibokryeong-Hwan

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Pancreatic stent improves the success rate of needle-knife papillotomy in patients with difficult biliary cannulation

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World Journal of Gastroenterology 2025年第1期31卷 58-67页

作者： Mu-Hsien lee Cheng-Hui Lin chi-Huan Wu Yung-Kuan Tsou Kai-Feng Sung Sheng-Fu Wang Nai-Jen Liu Department of Gastroenterology and Hepatology Chang Gung Memorial Hospital and Chang Gung University College of MedicineTaoyuan 33305Taiwan School of Medicine Chang Gung UniversityTaoyuan 33305Taiwan

BACKGROUND Needle-knife precut papillotomy(NKP)is typically performed ***,it remains unclear whether pancreatic stent(PS)placement can improve the outcomes of *** To explore whether PS placement improves the success rate of NKP in patients with difficult biliary *** This single-center retrospective study included 190 patients who underwent NKP between January 2017 and December 2021 after failed conventional biliary *** cases with incidental pancreatic duct cannulation during conventional biliary cannulation,the decision for pre-NKP PS placement was made at the endoscopist's *** primary outcome was the difference in the NKP success rate between patients with and without PS placement;the secondary outcome was the adverse event *** Among the 190 participants,82 received pre-NKP PS(PS-NKP group)whereas 108 did not[freehand or freehand NKP(FH-NKP)group].Post-NKP selective biliary cannulation was successful in 167(87.9%)patients,and the PS-NKP had a significantly higher success rate than the FH-NKP group(93.9%vs 83.3%,P=0.027).The overall adverse event rates were 7.3%and 11.1%in the PS-NKP and FH-NKP groups,respectively(P=0.493).A periampullary diverticulum(PAD)and significant intraoperative bleeding during NKP were independently associated with NKP failure;however,a pre-NKP PS was the only predictor of NKP *** the 44 participants with PADs,the PS-NKP group had a non-significantly higher NKP success rate than the FH-NKP group(87.5%and 65%,respectively;P=0.076).CONCLUSION PS significantly improved the success rate of NKP in patients with difficult biliary cannulation.

关键词： Difficult biliary cannulation Endoscopic retrograde cholangiopancreatography Needle-knife papillotomy Pancreatic stent Selective biliary cannulation

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中国、韩国、日本饮食文化及酱牛肉风味的比较分析

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食品科技 2008年第5期33卷 78-80页

作者：姜国哲李官浩崔康德李镐浩車載雄延边大学吉林133400 韩国韩京大学京畿道456-749 韩国建国大学汉城143-701 韩国韩京肠株式會社京畿道456-749

主要阐述酱牛肉风味的形成并分析中国、韩国、日本饮食文化及其酱牛肉风味的特点,为今后研究符合不同地区风味特点的酱牛肉提供基础材料。比较与分析结果表明:在中国北方人比较适合不带酱汁而酱香浓郁的酱牛肉,南方人比较适合酱汁较稀... 详细信息

主要阐述酱牛肉风味的形成并分析中国、韩国、日本饮食文化及其酱牛肉风味的特点,为今后研究符合不同地区风味特点的酱牛肉提供基础材料。比较与分析结果表明:在中国北方人比较适合不带酱汁而酱香浓郁的酱牛肉,南方人比较适合酱汁较稀并多加糖的酱牛肉;韩国人比较适合酱香浓郁而带些辣味的酱牛肉;日本人比较适合口味清淡、圆润感较强而带有清香的酱牛肉。

关键词：酱牛肉风味中国韩国日本

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Effects of Microstructure of Aluminum Substrate on Ordered Nanopore Arrays in Anodic Alumina

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Journal of Materials Science & Technology 2015年第7期31卷 751-758页

作者： Choong-Soo chi Jong-ho lee Insoo Kim Han-Jun Oh School of Advanced Materials Engineering Kookmin University Department of Chemistry Hanseo University Advanced Materials Science and Engineering Kumoh National Institute of Technology Department of Materials Science Hanseo University

The effects of microstructure of aluminum substrate on regular nanopore arrangement in anodic alumina layer were investigated. The dissimilar microstructure and texture on aluminum sheets were prepared by various cold rollings and heat treatments, and anodic alumina nanoporous layers were fabricated by two step anodizing method at 40 V in oxalic acid solution. For the aluminum sheets with similar surface texture and annealing condition except purity, the regularity of the nanopore arrangement on the anodic alumina layer increased with purity of aluminum substrate. The difference of surface texture on AI sheets is not critical parameter for formation of ordered nanopore array compared with purity and heat treatment of substrate aluminum. The investigation suggested that the purity and reasonable annealing temperature of aluminum substrate are very important process to obtain the highly-ordered nanopore array on anodic alumina layer.

关键词： AnodizationNanoporous structureTextureAluminum alloy

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PGLYRP1 protein as a novel mediator of cellular dialogue in neuroinflammation

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Neural Regeneration Research 2025年第7期20卷 1993-1994页

作者： Anup Bhusal Won-Ha lee Kyoungho Suk Department of Pharmacology School of MedicineKyungpook National UniversityDaeguRepublic of Korea BK21 Plus KNU Biomedical Convergence Program Department of Biomedical ScienceSchool of MedicineKyungpook National UniversityDaeguRepublic of Korea School of Life Sciences BK21 plus KNU Creative BioResearch GroupKyungpook National UniversityDaeguRepublic of Korea Brain Science and Engineering Institute Kyungpook National UniversityDaeguRepublic of Korea

Neuroinflammation has been identified as a crucial element in several neurological disorders. Glial cells play a critical role in directing neuroinflammation, both in deleterious and beneficial ways.

关键词： inflammation considerably

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Single-cell and spatial omics:exploring hypothalamic heterogeneity

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Neural Regeneration Research 2025年第6期20卷 1525-1540页

作者： Muhammad Junaid Eun Jeong lee Su Bin Lim Department of Biochemistry&Molecular Biology Ajou University School of MedicineSuwonSouth Korea Department of Biomedical Sciences Graduate School of Ajou UniversitySuwonSouth Korea Department of Brain Science Ajou University School of MedicineSuwonSouth Korea

Elucidating the complex dynamic cellular organization in the hypothalamus is critical for understanding its role in coordinating fundamental body functions. Over the past decade, single-cell and spatial omics technologies have significantly evolved, overcoming initial technical challenges in capturing and analyzing individual cells. These high-throughput omics technologies now offer a remarkable opportunity to comprehend the complex spatiotemporal patterns of transcriptional diversity and cell-type characteristics across the entire hypothalamus. Current single-cell and single-nucleus RNA sequencing methods comprehensively quantify gene expression by exploring distinct phenotypes across various subregions of the hypothalamus. however, single-cell/single-nucleus RNA sequencing requires isolating the cell/nuclei from the tissue, potentially resulting in the loss of spatial information concerning neuronal networks. Spatial transcriptomics methods, by bypassing the cell dissociation, can elucidate the intricate spatial organization of neural networks through their imaging and sequencing technologies. In this review, we highlight the applicative value of single-cell and spatial transcriptomics in exploring the complex molecular-genetic diversity of hypothalamic cell types, driven by recent high-throughput achievements.

关键词： cellular diversity hypothalamus multi-omics single-cell transcriptomics spatial transcriptomics

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Geometric and material nonlinear analysis of tensegrity structures

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Acta Mechanica Sinica 2011年第6期27卷 938-949页

作者： hoang chi Tran Jaehong lee Department of Architectural Engineering Free Form Architecture Institute Sejong University

A numerical method is presented for the large deflection in elastic analysis of tensegrity structures including both geometric and material *** geometric nonlinearity is considered based on both total Lagrangian and updated Lagrangian formulations,while the material nonlinearity is treated through elastoplastic stress-strain *** nonlinear equilibrium equations are solved using an incremental-iterative scheme in conjunction with the modified Newton-Raphson method.A computer program is developed to predict the mechanical responses of tensegrity systems under tensile,compressive and flexural *** results obtained are compared with those reported in the literature to demonstrate the accuracy and efficiency of the proposed *** flexural behavior of the double layer quadruplex tensegrity grid is sufficiently good for lightweight large-span structural *** the other hand,its bending strength capacity is not sensitive to the self-stress level.

关键词： Nonlinear analysis Tensegrity structures Ge- ometric nonlinearity Material nonlinearity Large displacements

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Biclustering of ARMA time series

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2010年第12期11卷 959-965页

作者： Jeonghwa lee chi-Hyuck JUN Department of Industrial and Management Engineering Pohang University of Science and Technology

Biclustering is a method of grouping objects and attributes simultaneously in order to find multiple hidden *** dealing with a long time series,there is a low possibility of finding meaningful clusters of whole time ***,we may find more significant clusters containing partial time sequence by applying a biclustering *** paper proposed a new biclustering algorithm for time series data following an autoregressive moving average (ARMA) *** assumed the plaid model but modified the algorithm to incorporate the sequential nature of time series *** maximum likelihood estimation (MLE) method was used to estimate coefficients of ARMA in each *** applied the proposed method to several synthetic data which were generated from different ARMA *** from the experiments showed that the proposed method compares favorably with other biclustering methods for time series data.

关键词： Biclustering Time series Autoregressive moving average (ARMA) Maximum likelihood estimation (MLE)

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