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中国有色金属学会会刊：英文版 2009年第4期19卷 997-1000页

作者： do-hoon shin Yun-Hae KIM Joong-Won HAN Kyung-Man MOON Ri-Ichi MURAKAMI Korean Air Aerospace Division Department of Mechanical and Material Engineering Korea Maritime University Department of Mechanical Engineering The University of Tokushima

IZO films were deposited onto PET substrate at room temperature with the inclined opposite target type DC magnetron sputtering equipment,in which a sintered oxide IZO target(doped with 10% ZnO,packing density of 99.99%) was *** effects of total sputtering pressure and film thickness on IZO films properties were *** the films produced at room temperature have a amorphous structure,irrespective of the total sputtering pressure and film thickness.A resistivity of the order of 10-4 Ωcm was obtained for IZO films deposited at lower pressure(film thickness of 190 nm).The resistivity of IZO films deposited at room temperature depends on film thickness and shows a minimum at a thickness of 530 nm.

关键词：溅射薄膜工艺参数光学性能磁控直流类型薄膜厚度电力

Enhancement of mechanical and tribological performance of Ti-6Al-4V alloy by laser surface alloying with Inconel 625 and SiC precursor materials

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Friction 2024年第9期12卷 2089-2107页

作者： Hao-Ran CHENG Ki-hoon shin Hong Seok KIM Department of Mechanical Engineering Graduate School of Seoul National University of Science and TechnologySeoul 01811Republic of Korea Department of Mechanical and Automotive Engineering Seoul National University of Science and TechnologySeoul 01811Republic of Korea

This study focused on producing metal matrix composite(MMC)coatings on Ti–6Al–4V alloy through laser surface alloying using a novel combination of Inconel 625 and SiC precursor *** ratios of alloying powders were examined to evaluate surface properties such as microhardness,wear resistance,and friction coefficient,along with analyzing the phase composition and microstructure of the *** in situ synthesized MMC coatings exhibited the presence ofα-Ti,NiTi,NiTi_(2),and TiC ***,Ti_(5)Si_(3)andα-Ti/Ti_(5)Si_(3)eutectic structures were observed when the SiC content exceeded 20%.In comparison to the titanium substrate,the MMC coating significantly enhanced microhardness by over threefold and reduced wear by 95%.However,it was crucial to carefully select the appropriate combination of alloying powders to avoid a substantial decrease in friction performance and excessive formation of *** a comparative analysis of experimental results,the optimal precursor material composition was identified as 85%Inconel 625 and 15%*** study demonstrated the effective utilization of Inconel 625 and SiC alloying materials to enhance the surface properties of titanium alloys,thereby expanding their application in challenging environments.

关键词： titanium alloy Inconel 625 SiC ceramic laser surface alloying metal matrix composite(MMC)

The CUL3A–LFH1–UBC15 ubiquitin ligase complex mediates SHORT VEGETATIVE PHASE degradation to accelerate flowering at high ambient temperature

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Plant Communications 2024年第4期5卷 224-238页

作者： Suhyun Jin Geummin Youn Sun Young Kim Taewook Kang Hyun-young shin Ji-Yul Jung Pil Joon Seo Ji hoon Ahn Department of Life Sciences Korea UniversitySeoul 02841Republic of Korea Department of Chemistry Seoul National UniversitySeoul 08826Republic of Korea These authors contributed equally to this article.

Ambient temperature affects flowering time in plants,and the MADS-box transcription factor SHORT VEGETATIVE PHASE(SVP)plays a crucial role in the response to changes in ambient *** protein stability is regulated by the 26S proteasome pathway and decreases at high ambient temperature,but the details of SVP degradation are ***,we show that SVP degradation at high ambient temperature is mediated by the CULLIN3–RING E3 ubiquitin ligase(CRL3)complex in Arabidopsis *** identified a previously uncharacterized protein that interacts with SVP at high ambient temperature and contains a BTB/POZ *** named this protein LATE FLOWERING AT HIGH TEMPERATURE 1(LFH1).Single mutants of LFH1 or CULLIN3A(CUL3A)showed late flowering specifically at 27***1 protein levels increased at high ambient *** found that LFH1 interacts with CUL3A in the cytoplasm and is important for SVP–CUL3A complex *** in CUL3A and/or LFH1 led to increased SVP protein stability at high ambient temperature,suggesting that the CUL3–LFH1 complex functions in SVP *** E2 ubiquitin-conjugating enzymes(UBCs)using RING-BOX PROTEIN 1(RBX1),a component of the CRL3 complex,as bait identified ***15 mutants also showed late flowering at high ambient *** vitro and in vivo ubiquitination assays using recombinant CUL3A,LFH1,RBX1,and UBC15 showed that SVP is highly ubiquitinated in an ATP-dependent ***,these results indicate that the degradation of SVP at high ambient temperature is mediated by a CRL3 complex comprising CUL3A,LFH1,and UBC15.

关键词： temperature-responsiveflowering SVP CUL3 proteasomal degradation ubiquitination

Mixed-dimensional stacked nanocomposite structures for a specific wavelength-selectable ambipolar photoresponse

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Nano Research 2024年第6期17卷 5549-5558页

作者： Young Jae Park Jaeho Shim Joo Song Lee Kyu Seung Lee Ji-Yeon Kim Kang Bok Ko Sang-Youp Yim Seongjun Kim hoon-Kyu shin donghee Park Yong Ju Yun dong Ick Son Institute of Advanced Composite Materials Korea Institute of Science and TechnologyJeollabuk-do 55324Republic of Korea National Institute for Nanomaterials Technology Pohang University of Science and TechnologyGyeongsangbuk-do 37673Republic of Korea Department of Semiconductor Science and Technology Semiconductor Physics Research CenterJeonbuk National UniversityJeonju 54896Republic of Korea Advanced Photonics Research Institute Gwangju Institute of Science and TechnologyGwangju 61005Republic of Korea Center for Opto-Electronic Materials and Devices Post-Silicon Semiconductor InstituteKorea Institute of Science and TechnologySeoul 02792Republic of Korea Graduate School of Energy and Environment(KU-KIST Green School) Korea UniversitySeoul 02841Republic of Korea KIST School Department of Nanomaterials and Nano ScienceUniversity of Science and Technology(UST)Daejeon 34113Republic of Korea

Mixed-dimensional composite structures using zero-dimensional(0D)quantum dots(QDs)and two-dimensional(2D)transition metal dichalcogenides(TMDs)materials are expected to attract great interest in optoelectronics due to the potential to generate new optical ***,we report on the unique optical characteristics of a devices with mixed dimensional vertically stacked structures based on tungsten diselenide(WSe_(2))/CdSeS QDs monolayer/molybdenum disulfide(MoS_(2))(2D/0D/2D).Specifically,it exhibits an ambipolar photoresponse characteristic,with a negative photoresponse observed in the 400-600 nm wavelength range and a positive photoresponse appeared at 700 nm *** resulted in the high negative responsivity of up to 52.22 mA·W^(−1)under 400 nm,which is 163 times higher than that of the photodetector without CdSeS *** also demonstrated the negative photoresponse,which could be due to increased carrier collision probability and non-radiative *** modeling and simulation reveal that Auger recombination among the types of non-radiative recombination is the main cause of negative photocurrent ***,we discovered ambipolar photoresponse near a specific wavelength corresponding to the energy of quantum *** study revealed interesting phenomenon in the mixed low-dimensional stacked structure and paved the way to exploit it for the development of innovative photodetection materials as well as for optoelectronic applications.

关键词： mixed-dimension quantum dot heterostructure photodetector ambipolar photoresponse

Highly Elastic,Bioresorbable Polymeric Materials for Stretchable,Transient Electronic Systems

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Nano-Micro Letters 2024年第6期16卷 1-13页

作者： Jeong‑Woong shin dong‑Je Kim Tae‑Min Jang Won Bae Han Joong hoon Lee Gwan‑Jin Ko Seung Min Yang Kaveti Rajaram Sungkeun Han Heeseok Kang Jun Hyeon Lim Chan‑Hwi Eom Amay J.Bandodkar Hanul Min Suk‑Won Hwang KU‑KIST Graduate School of Converging Science and Technology Korea University145 Anam‑roSeongbuk‑guSeoul 02841Republic of Korea SK Hynix 2091Gyeongchung‑daeroBubal‑eupIcheon‑siGyeonggi‑do 17336Republic of Korea Hanwha Systems Co. Ltd.188Pangyoyeok‑roBundang‑guSeongnam‑siGyeonggi‑do 13524Republic of Korea Department of Electrical and Computer Engineering North Carolina State UniversityRaleighNC 27606USA Center for Advanced Self‑Powered Systems of Integrated Sensors and Technologies(ASSIST) North Carolina State UniversityRaleighNC 27606USA Department of Integrative Energy Engineering Korea University145 Anam‑roSeongbuk‑guSeoul 02841Republic of Korea Biomaterials Research Center Korea Institute of Science and Technology(KIST)5 Hwarang‑ro 14‑gilSeongbuk‑guSeoul 02792Republic of Korea Semiconductor R&D Center Samsung Electronics Co.Ltd.Hwaseong‑siGyeonggi‑do 18448Republic of Korea Center for Advanced Biomolecular Recognition Biomedical Research DivisionKorea Institute of Science and Technology(KIST)Seoul 02792Republic of Korea

Substrates or encapsulants in soft and stretchable formats are key components for transient,bioresorbable electronic systems;however,elastomeric polymers with desired mechanical and biochemical properties are very limited compared to nontransient ***,we introduce a bioresorbable elastomer,poly(glycolide-co-ε-caprolactone)(PGCL),that contains excellent material properties including high elongation-at-break(<1300%),resilience and toughness,and tunable dissolution *** of PGCLs as polymer matrices,in combination with conducing polymers,yields stretchable,conductive composites for degradable interconnects,sensors,and actuators,which can reliably function under external *** of device components with wireless modules demonstrates elastic,transient electronic suture system with on-demand drug delivery for rapid recovery of postsurgical wounds in soft,time-dynamic tissues.

关键词： Biodegradable elastomer Conductive polymer composites Biomedical device Transient electronics

High Na-ion conductivity andmechanical integrity of anion-exchanged polymeric hydrogel electrolytes for flexible sodium ion hybrid energy storage

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SusMat 2024年第1期4卷 140-153页

作者： JungWoo Hong Harpalsinh H.Rana Jeong Hee Park Jun Su Kim Sang Joon Lee Gun Jang Tae hoon Kang Kang Ho shin Sang Ha Baek Wooseok Yang Kwang Ho Kim Ju-Hyuk Lee Ho Seok Park School of Chemical Engineering Sungkyunkwan UniversitySuwonRepublic of Korea Clean Energy Research Center Korea Institute of Science and Technology(KIST)SeoulRepublic of Korea KIST-SKKU Carbon-Neutral Research Center Sungkyunkwan University(SKKU)SuwonRepublic of Korea SKKU Institute of Energy Science and Technology(SIEST) Sungkyunkwan UniversitySuwonRepublic of Korea COSMOS LAB/92 Jomaru-ro 385beon-gilBucheon-siRepublic of Korea SKKU Advanced Institute of Nano Technology(SAINT) Sungkyunkwan UniversitySuwonRepublic of Korea Department of Health Sciences and Technology Samsung Advanced Institute for Health Sciences and Technology(SAIHST)Sungkyunkwan UniversitySuwonRepublic of Korea

The polymeric gel electrolytes are attractive owing to their higher ionic conductivities than those of dry polymer electrolytes and lowered water activity for enlarged potential ***,the ionic conductivity and mechanical strength of the Na-ion conducting polymeric gel electrolytes are limited by below 20 mS cm−1 and 2.2 ***,we demonstrate Na-ion conducting and flexible polymeric hydrogel electrolytes of the chemically coupled poly(diallyldimethylammonium chloride)-dextrin-N,N′-methylene-bisacrylamide film immersed in NaClO_(4) solution(ex-DDA-Dex+NaClO_(4))for flexible sodium-ion hybrid capacitors(f-NIHC).In particular,the anion exchange reaction and synergistic interaction of ex-DDA-Dex with the optimum ClO_(4)−enable to greatly improve the ionic conductivity up to 27.63 mS cm−1 at 25◦C and electrochemical stability window up to 2.6 V,whereas the double networking structure leads to achieve both the mechanical strength(7.48 MPa)and softness of hydrogel ***,the f-NIHCs with the ex-DDA-Dex+NaClO_(4) achieved high specific and high-rate capacities of 192.04 F g^(−1)at 500 mA g^(−1)and 116.06 F g^(−1)at 10000 mA g^(−1),respectively,delivering a large energy density of 120.03Wh kg^(−1)at 906Wkg^(−1)and long cyclability of 70%over 500 cycles as well as demonstrating functional operation under mechanical stresses.

关键词： anion exchange chemistry flexible energy storage hybrid energy storage hydrogel electrolytes renewable electrolytes sodium storage

Occurrence and distribution of hydroxylated isoprenoid glycerol dialkyl glycerol tetraethers(OH-GDGTs) in the Han River system, South Korea

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Acta Geochimica 2017年第3期36卷 367-369页

作者： Sujin Kang Kyoung-hoon shin Jung-Hyun Kim Department of Marine Science and Convergence Technology Hanyang University Ansan Korea Korea Polar Research Institute 26 Songdomirae-ro Yeonsugu Incheon Korea

We investigated the occurrence and distribution of terrestrial-derived hydroxylated isoprenoid glycerol dialkyl glycerol tetraethers(OH-GDGTs) in the Han River system and their potential impact on the application of the ring index of OH-GDGTs(RI-OH) as a sea surface temperature(SST) proxy in the eastern Yellow Sea. Thereby, we analyzed various samples collected along the Han River and from its surrounding areas(South Korea, n = 34). The OHGDGTs were found in all samples investigated. OH-GDGT-0 was the dominant OH-GDGT component in the estuary and marine samples while OH-GDGT-2 was generally dominant in the soils, the lake sediments and the river suspended particulate matter(SPM). Our results thus suggests a possible warm bias of the RI-OH-derived summer SSTs in the coastal zone to which a large amount of terrestrial organic matter is being supplied. Further studies are necessary to better assess the applicability of the RI-OH proxy in the eastern Yellow Sea.

关键词： Hydroxylated isoprenoid glycerol dialkyl glycerol tetraethers(OH-GDGTs) Sea surface temperature(SST) Han river Yellow Sea

Nusinersen for spinal muscular atrophy types Ⅱ and Ⅲ:a retrospective single-center study in South Korea

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World Journal of Pediatrics 2023年第5期19卷 450-459页

作者： Hui Jin shin Ji-hoon Na Hyunjoo Lee Young-Mock Lee Department of Pediatrics Gangnam Severance HospitalYonsei University College of Medicine211 Eonju-RoGangnam-GuSeoul135-720Korea

Background This study investigated the efficacy and safety of nusinersen,an antisense oligonucleotide,in patients with spinal muscular atrophy(SMA)types II(OMIM:253,550)or III(OMIM:253,400),including those with severe scoliosis or requiring respiratory support via mechanical *** Data from 40 patients with genetically confirmed SMA who were treated with nusinersen at our institute from March 2019 to April 2022 were retrospectively *** these,30 patients with an age of onset<3 years and not on permanent ventilation were *** and genetic characteristics were investigated,and motor function was evaluated based on the Hammersmith Functional Motor Scale-Expanded(HFMSE)*** The mean age of symptom onset was 1.2 *** patients were diagnosed with SMA type II(27/30,90%).Nusinersen was administered via computed tomography-guided or direct intrathecal injection in 87%(26/30)and 13%(4/30)of the patients,*** the 6-,14-,22-,and 26-month follow-ups,72%,71%,88%,and 86%of patients showed motor improvement,respectively,with mean changes in HFMSE scores of 2.10,2.88,4.21,and 5.29,*** analysis showed that the use of noninvasive ventilation was associated with poorer outcomes of motor *** Patients with SMA type II or III who received nusinersen treatment showed significant improvement in motor function.A longer treatment duration led to a higher number of patients with improved motor *** significant side effects of nusinersen were *** with SMA,even those with severe scoliosis or on respiratory support,can be safely treated using nusinersen.

关键词： Hammersmith Functional Motor Scale Expanded Motor function Nusinersen South Korea Spinal muscular atrophy

The influence of thermohaline fronts on chlorophyll a concentrations during spring and summer in the southeastern Yellow Sea

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Acta Oceanologica Sinica 2013年第9期32卷 82-90页

作者： JANG Pung-Guk LEE Tong Sup KANG Jung-hoon shin Kyoungsoon Korea Institute of Ocean Science and Technology/South Sea Institute Department of Oceanography College of Natural SciencesPusan National University

A spatial and temporal variation in physiochemical parameters in the southeastern Yellow Sea （YS） is in- vestigated in the spring and summer of 2009 to 2011. Nutrient show a strong negative relationship with chlorophyll a （Chl a） concentration in spring, and the subsurface chlorophyll a maxima （SCM） layer was associated with the nitracline in summer. In summer, the SCM was usually found within or above the pyc- nocline and at the depths of shoals from the open sea to the coastal sea due to tidal and/or topographical fronts in the southernmost study area. High Chl a concentrations were found in the central southern YS, where the YS cold water layer expanded under the pycnocline and encountered water masses during spring and summer. After a typhoon in the summer of2011, Chl a concentration increased, especially in the central southern YS, where cold waters occurred below the pycnocline. The results suggest that the development of thermohaline fronts may play an important role in the growth and accumulation of phytoplankton biomass in the upper layer of the southeastern YS during spring and summer.

关键词： Yellow Sea Cold Water nutrient chorophyll a thermohaline front

Effectiveness of lorazepam-assisted interviews in an adolescent with dissociative amnesia A case report

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Neural Regeneration Research 2013年第2期8卷 186-190页

作者： Yuna Seo Mi-Hee shin Sung-Gon Kim Ji-hoon Kim Department of Psychiatry Aram Hospital Department of Psychiatry Pusan National University School of Medicine Division of Child-Adolescent Psychiatry Department of Psychiatry Pusan National University School of Medicine

To facilitate gathering information during a psychiatric interview, some psychiatrists advocate augmenting the interview using drugs. Rather than barbiturates, benzodiazepines have been used for drug-assisted interviews. Dissociative amnesia is one of the indications for these interviews. Herein, we present the case of a 15-year-old female who was diagnosed as having dissociative amnesia because of conflicts with her friends. She was administered a Iorazepam-assisted interview to aid recovery of her memories. In this case, a small dose of Iorazepam was sufficient to recover her memories without any adverse effects.

关键词： neural regeneration clinical practice dissociative amnesia dissociative disorder dissociation drug-assisted interview amobarbital, Iorazepam benzodiazepine adolescent memory loss emotional distress distress grant-supported paper neuroregeneration