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Bioactive Materials 2024年第8期38卷 331-345页

作者： Deogil Kim min-ju lee Yoshie Arai Jinsung Ahn Gun Woo lee Soo-Hong lee Department of Biomedical Engineering Dongguk University-Seoul04620SeoulSouth Korea

Cellular reprogramming technologies have been developed with different physicochemical factors to improve the reprogramming efficiencies of induced pluripotent stem cells(iPSCs).Ultrasound is a clinically applied noncontact biophysical factor known for regulating various cellular behaviors but remains uninvestigated for cellular ***,we present a new reprogramming strategy using low-intensity ultrasound(LIUS)to improve cellular reprogramming of iPSCs in vitro and in *** 3D microenvironment conditions,increased LIUS stimulation shows enhanced cellular reprogramming of the *** cellular reprogramming process facilitated by LIUS is accompanied by increased mesenchymal to epithelial transition and histone *** stimulation transiently modulates the cytoskeletal rearrangement,along with increased membrane fluidity and mobility to increase HA/CD44 ***,LIUS stimulation with HA hydrogel can be utilized in application of both human cells and in vivo environment,for enhanced reprogrammed cells into ***,LIUS stimulation with a combinatorial 3D microenvironment system can improve cellular reprogramming in vitro and in vivo environments,which can be applied in various biomedical fields.

关键词： Induced pluripotent stem cell Cellular reprogramming Low-intensity ultrasound Biophysical stimulation Cytoskeletal rearrangement

De novo synthesis of atropisomeric benzofurans via Cu/SPDO complex catalyzed asymmetric formal [3 + 2] annulation

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Science China Chemistry 2025年第1期 174-180页

作者： Fan-Xiao Meng Xing-Yu Wang Ka Lu ju-Song Yang Fu-min Zhang Ai-jun Ma Bao Du Yong-Qiang Tu State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University School of Chemistry and Chemical Engineering Shanghai Jiao Tong University School of Biotechnology and Health Sciences Wuyi University

Herein, the de novo synthesis of atropisomeric benzofurans through the Cu/spirocyclic-pyrrolidine-oxazoline(SPDO) complex catalyze asymmetric formal [3 + 2] cycloaddition between quinones and ynamides is explored, producing a range of structurally diverse axially chiral benzofurans in satisfactory yields with good to excellent enantioselectivities. Furthermore, density functional theory calculations were applied to explain the possible reaction mechanism.

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别有洞天——首尔PANAM旗舰店

现代装饰 2022年第6期 24-29页

作者： Sung chul Park Areum Han Soo Jeong Lim Sung Young Heo min ju lee Sang Hee Park Jae Sung lee(摄影) Tak Hyun Kim(摄影) 范嘉苑(编译) 不详

位于首尔的圣水洞(Seongsu-dong)绝对是韩国近年最火的热门地区之一。从前,圣水洞到处都是制造商店,包括印刷店、手工鞋店及皮革行业。如今,却吸引了很多MZ世代的年轻人前去,因为圣水洞与其他地方不同,它将过去与现在和谐结合,形成了独... 详细信息

位于首尔的圣水洞(Seongsu-dong)绝对是韩国近年最火的热门地区之一。从前,圣水洞到处都是制造商店,包括印刷店、手工鞋店及皮革行业。如今,却吸引了很多MZ世代的年轻人前去,因为圣水洞与其他地方不同,它将过去与现在和谐结合,形成了独树一帜的文化。这里汇集了各种各样的商业空间,既有由旧工厂和仓库改造的商店,又有融合该地区特色的新生空间,使之拥有了与众不同的独特氛围,许多国际知名品牌也在此开设旗舰店,无疑成为拥有众多时尚品牌的热门区域。

关键词：皮革行业商业空间国际知名品牌仓库改造时尚品牌旗舰店首尔过去与现在

Dispersion of ultrafine SiC particles in molten Al-12Si alloy

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Transactions of Nonferrous Metals Society of China 2011年第A01期21卷 33-36页

作者： Jin-ju PARK Sang-Hoon lee min-Ku lee Chang-Kyu RHEE Nuclear Materials Research Division Korea Atomic Energy Research Institute Daejeon 305-353 Korea

The bulk A1-12 Si eutectic composites were fabricated through a conventional liquid metal casting route, especially with the help of ultrafine ceramic powders made by self-propagating high-temperature synthesis （SHS） process. The SHS powders were fabricated by the chemical reaction between micro-sized SiC and A1 particles at very high combustion temperatures, producing the coarse A1 particles （several tens of microns） containing ultrafine SiC ceramic particles. Microstructural observation revealed that the addition of ultrafine SiC particles has a crumbling tendency of Si eutectic phase. It is suggested that the casting method combined with SHS process is promising for fabricating the Al-based MMC with ultrafine ceramic particles.

关键词： AI-12Si alloy dispersion self-propagating high-temperature synthesis (SHS) ultrafine ceramic SiC

Diagnostic Indicators for Blood Stasis Syndrome Patients with Gynaecological Diseases

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Chinese Journal of Integrative Medicine 2018年第10期24卷 752-757页

作者： Jeeyoun jung Mi Mi Ko Myeong Soo lee So min lee ju Ah lee Korea Medicine Fundamental Research Division Korea Institute of Oriental Medicine Clinical Research Division Korea Institute of Oriental Medicine

Objective： To investigate the important diagnostic indicators for blood stasis syndrome （BSS） in patients of childbearing age with gynaecological diseases. Methods： A partial least squared-discriminant analysis （PLS-DA） were applied to BSS symptoms data of patients with gynaecological diseases, and the diagnostic indicators used by doctors of Korean medicine （DKMs） among BSS patients with gynaecological diseases were also investigated. Results： A total of 103 patients of childbearing age with gynaecological diseases and 40 healthy controls were enrolled. Among the 103 patients, 63 （61.7%） and 40 （38.8%） were diagnosed with BSS and non-BSS, respectively, and BSS patients exhibited a more severe extent of disease. A score plot of PLS-DA showed clearly different patterns among the 3 groups. Based on the variable importance on projection of PLS-DA model, menstrual pains, dark lumps in the menstrual blood, ileocoecal tenderness and resistance, sharp pains, and sublingual varicosities were selected as the top five most important indicators. Moreover, more than 75% of DKMs chose dark lumps in menstrual blood, menstrual pain, and dark menstrual blood as the diagnostic indicators of BSS in patients with gynaecological diseases, and more than 49% of them also considered sharp pains, dark red tongue, sublingual varicosities, and tendency to bruise easily as diagnostic indicators of BSS. Conclusion： DKMs focused on menstrual symptoms and certain gynaecological symptoms to diagnose BSS patients of childbearing age with female diseases.

关键词： blood stasis syndrome diagnosis gynaecological disease pattern identification

Effect of parallel resonance on the electron energy distribution function in a 60 MHz capacitively coupled plasma

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Plasma Science and Technology 2023年第4期25卷 69-78页

作者： You HE Yeong-min LIM jun-Ho lee ju-Ho KIM Moo-Young lee Chin-Wook CHUNG Department of Electrical Engineering Hanyang University17 Haengdang-dongSeongdong-guSeoul 133-791Republic of Korea Department of Nanoscale Semiconductor Engineering Hanyang University17 Haengdang-dongSeongdong-guSeoul 133-791Republic of Korea

In general,as the radio frequency(RF)power increases in a capacitively coupled plasma(CCP),the power transfer efficiency decreases because the resistance of the CCP *** this work,a parallel resonance circuit is applied to improve the power transfer efficiency at high RF power,and the effect of the parallel resonance on the electron energy distribution function(EEDF)is investigated in a 60 MHz *** CCP consists of a power feed line,the electrodes,and *** reactance of the CCP is positive at 60 MHz and acts like an inductive load.A vacuum variable capacitor(VVC)is connected in parallel with the inductive load,and then the parallel resonance between the VVC and the inductive load can be *** the capacitance of the VVC approaches the parallel resonance condition,the equivalent resistance of the parallel circuit is considerably larger than that without the VVC,and the current flowing through the matching network is greatly ***,the power transfer efficiency of the discharge is improved from 76%,70%,and 68%to 81%,77%,and 76%at RF powers of 100 W,150 W,and 200 W,*** parallel resonance conditions,the electron heating in bulk plasma is enhanced,which cannot be achieved without the VVC even at the higher RF *** enhancement of electron heating results in the evolution of the shape of the EEDF from a biMaxwellian distribution to a distribution with the smaller temperature difference between high-energy electrons and low-energy *** to the parallel resonance effect,the electron density increases by approximately 4%,18%,and 21%at RF powers of 100 W,150 W,and 200 W,respectively.

关键词： capacitively coupled plasma parallel resonance electron energy distribution function

Antistatic coating material consisting of poly (butylacrylate-co-styrene) core-nickel shell particle

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中国有色金属学会会刊：英文版 2009年第B09期19卷 119-123页

作者： min-Yeong JEONG Byung-Yoon AHN Sang-Koul lee Won-Ki lee Nam-ju JO Department of Polymer Science and Engineering Pusan National University Kumho Petrochemical Samsung Corning Precision Glass Division of Chemical Engineering Pukyong National University

A transparent and antistatic coating material consisting of polymer core-metal shell particle was prepared. As a polymer core, poly(butylacrylate-co-styrene)s ([P(BA-co-sty)s]) with various compositions of butylacrylate and styrene were synthesized by emulsion polymerization. And the effect of comonomer composition on the thermal property of polymer core particle was investigated. By electroless plating method, the nickel particles were formed and deposited on the surface of P(BA-co-Sty) particles to form P(BA-co-Sty) core-nickel shell composite particles. SEM observation confirms that the nickel particles with size of 15 nm are distributed on the surface of the polymer core particles. The surface resistance of P(BA-co-Sty) core-nickel shell composite is 0.8×108Ω/cm2, enough to act as antistatic coating material.

关键词：复合粒子涂层材料单体组成抗静电苯乙烯丁酯聚合物颗粒镍

Polyaniline and multi-walled carbon nanotube composite electrode for rechargeable battery

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中国有色金属学会会刊：英文版 2012年第S3期22卷 717-721页

作者： Yu-Jeong LIM min-Young PARK Sang-Keol lee Won-Ki lee Nam-ju JO Department of Polymer Science & Engineering Pusan National University Hankook Tire Co.Ltd. Department of Polymer Engineering Pukyong National University

The multi-walled carbon nanotube was introduced into the polymer matrix (PANI) to improve the electric conductivity as well as mechanical properties of the original polymer ***/multi-walled carbon nanotube (MWCNT) composites were synthesized via ex-situ and in-situ polymerization to improve their electrical *** the DC conductivities of PANI/MWCNT according to content and diameter of MWCNT were measured by four-point *** highest electric conductivity of PANI/MWCNT composite is 20 S/cm when 0.3% (mass fraction) MWCNTs with 10 nm in diameter and 15 μm in length are added in composite.

关键词： polymer electrode electric conductivity multi-walled carbon nanotube conducting polymer

Performance evaluation of the use of tire-derived fuel fly ash as mineral filler in hot mix asphalt concrete

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Journal of Traffic and Transportation Engineering(English Edition) 2020年第2期7卷 249-258页

作者： min ju Choi Yong Joo Kim Hyeok jung Kim Jae jun lee BILTZONE Co. Ltd.Hwaseong 18514South Korea Korea Institute o f Civil Engineering and Building Technology Goyang-Si 10223South Korea Industry-Academic Cooperation Foundation Center Hankyong National UniversityAnseong-si 17579South Korea Department of Civil Engineering Chonbuk National UniversityJeonju 54896South Korea

According to deplete natural resources and need to protect the environment,the demand of a usage of waste material has significantly *** studies are currently being carried out on the development of innovative and environmentally friendly materials for securing the safety of road users and improving the performance and durability of *** example,studies are currently being conducted on the use of waste tires as a substitute for currently used *** the development of the automobile industry,the amount of waste tire has continuously increased in accordance with the increased vehicle ***-derived fuel(TDF)has been used as a fuel source with generated TDF fly *** filler,made of fine mineral particles of a physical size passing the number 200 standard mesh sieve(75 micron),plays an important role in asphalt mixtures *** paper presents an application of TDF fly ash as filler in hot mix asphalt(HMA).In this study,the performance of TDF fly ash was confirmed through a comparison with three other mineral fillers:stone dust,cement,and hydrated *** tests including Marshall stability test,moisture sensitivity test,dynamic immersion test,and a wheel tracking test were performed to investigate the difference in the behaviors of the samples with different parameters considered in this *** results show that the mechanical performance of hot mix asphalt using TDF fly ash satisfied the quality standard specification of the ministry of Land,Infrastructure and Transport(MOLIT),*** can be concluded that the use of TDF fly ash as a mineral filler in HMA not only satisfied the mechanical properties,but also reduced the volume of the pollutants waste in the environment.

关键词： Asphalt mixture TDF fly ash Marshal stability Moisture sensitive TSR

Identification and comparison of the local physicochemical structures of transition metal-based layered double hydroxides for high performance electrochemical oxygen evolution reactions

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Journal of Energy Chemistry 2023年第12期87卷 89-97,I0004页

作者： min Sung Kim Bipin Lamichhane ju-Hyeon lee Jin-Gyu Bae Jeong Yeon Heo Hyeon Jeong lee Shyam Kattel Ji Hoon lee School of Materials Science and Engineering Kyungpook National UniversityDaegu 41566Republic of Korea KNU Advanced Material Research Institute Kyungpook National UniversityDaegu 41566Republic of Korea Department of Materials Science and Engineering Ulsan National Institute of Science and TechnologyUlsan 44919Republic of Korea Department of Physics Florida A&M UniversityTallahasseeFlorida 32307United States

Layered double hydroxides(LDHs) have attracted considerable attention as a cost effective alternative to the precious iridium-and ruthenium-based electrocatalysts for an oxygen evolution reaction(OER),a bottleneck of water electrolysis for sustainable hydrogen *** their excellent OER performance,the structural and electronic properties of LDHs,particularly during the OER process,remain to be poorly *** this study,a series of LDH catalysts is investigated through in situ X-ray absorption fine structure analyses and density functional theory(DFT) *** experimental results reveal that the LDH catalyst with equal amounts of Ni and Fe(NF-LDH) exhibits the highest OER activity and catalytic life span when compared with its counterparts having equal amounts of Ni and Co(NC-LDH)and Ni only(Ni-LDH).The NF-LDH shows a markedly enhanced OER kinetics compared to the NC-LDH and the Ni-LDH,as proven by the lower overpotentials of 180,240,and 310 mV,respectively,and the Tafel slopes of 35.1,43.4,and 62.7 mV dec^(-1),*** DFT calculations demonstrate that the lowest overpotential of the NF-LDH is associated with the active sites located at the edge planes of NF-LDH in contrast to those located at the basal planes of Ni-LDH and *** current study pinpoints the active sites on various LDHs and presents strategies for optimizing the OER performance of the LDH catalysts.

关键词： Layered double hydroxides Oxygen evolution reaction In situ X-ray analyses Density functional theory Catalytic active sites