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Acta Geologica Sinica(English Edition) 2016年第3期90卷 796-806页

作者： Mirinae lee Heeju PARK Nguyen Viet TIEN Suk-Joo CHOH Robert J.ELIAS dong-jin lee Department of Earth and Environmental Sciences Andong National UniversityAndong36729Republic of Korea Institute of Geological Sciences-Vietnam Academy of Science and Technology(IGS-VAST) Hanoi100000Socialist Republic of Vietnam Department of Earth and Environmental Sciences Korea UniversitySeoul02841Republic of Korea Department of Geological Sciences The University of ManitobaWinnipegR3T 2N2Canada

A new species of the probable calcareous alga Amsassia, A. koreanensis, is recognized from the Duwibong Formation （Middle Ordovician, Darriwilian） of the Taebaeksan Basin in mid-eastern Korea. This is the first report of the genus from the Korean Peninsula, expanding its geographical range to the eastern Sino-Korean Block. The new species also occurs in the Xiazhen Formation （Upper Ordovician, Katian） at Zhuzhai in the South China Block. Amsassia koreanensis is the smallest species of this modular genus, having a maximum module diameter of 0.28 ram. Module increase is by bipartite, tripartite and quadripartite types of longitudinal axial fission, but unlike other species of the genus, quadripartite fission is common. The types of fission are comparable to those in some Tetradiida （now Prismostylales, florideophycean rhodophyte algae）, although the processes of fission are different. The distribution of A. koreanensis further strengthens the biogeographical connection between the Sino-Korean and South China blocks, suggesting that these two paleocontinents were located closer together during the Middle to Late Ordovician than previously speculated.

关键词： Amsassia koreanensis sp. nov. Ordovician Sino-Korean Block South China Block paleobiology paleogeography.

Whole-genome,transcriptome,and methylome analyses provide insights into the evolution of platycoside biosynthesis in Platycodon grandiflorus,a medicinal plant

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Horticulture Research 2020年第1期7卷 1536-1547页

作者： Jungeun Kim Sang-Ho Kang Sin-Gi Park Tae-jin Yang Yi lee Ok Tae Kim Oksung Chung Jungho lee Jae-Pil Choi Soo-jin Kwon Keunpyo lee Byoung-Ohg Ahn dong jin lee Seung-il Yoo In-Gang Shin Yurry Um Dae Young lee Geum-Soog Kim Chang Pyo Hong Jong Bhak Chang-Kug Kim Personal Genomics Institute Genome Research FoundationOsong 28160Korea Genomics Division National Institute of Agricultural Sciences(NAS)Jeonju 54874Korea Theragen Etex Bio Institute Suwon 16229Korea Department of Plant Science Plant Genomics and Breeding Instituteand Research Institute of Agriculture and Life SciencesCollege of Agriculture and Life SciencesSeoul National UniversitySeoul 08826Korea Department of Industrial Plant Science&Technology Chungbuk National UniversityCheongju 28644Korea Department of Herbal Crop Research National Institute of Horticultural and Herbal ScienceRural Development Administration(RDA)Eumseong 27709Korea Clinomics Inc Ulsan 44919Korea Green Plant Institute Yongin 16954Korea Korean Genomics Center(KOGIC) Ulsan National Institute of Science and Technology(UNIST)Ulsan 44919Korea Department of Biomedical Engineering School of Life SciencesUlsan National Institute of Science and Technology(UNIST)Ulsan 44919Korea

Triterpenoid saponins(TSs)are common plant defense phytochemicals with potential pharmaceutical *** grandiflorus(Campanulaceae)has been traditionally used to treat bronchitis and asthma in East *** oleanane-type TSs,platycosides,are a major component of the *** root *** studies show that platycosides exhibit anti-inflammatory,antiobesity,anticancer,antiviral,and antiallergy ***,the evolutionary history of platycoside biosynthesis genes remains *** this study,we sequenced the genome of *** and investigated the genes involved in platycoside *** draft genome of *** is 680.1 Mb long and contains 40,017 protein-coding *** analysis revealed that the CYP716 family genes play a major role in platycoside *** CYP716 gene family of *** was much larger than that of other Asterid *** gene annotation also revealed the expansion ofβ-amyrin synthases(bASs)in ***,which was confirmed by tissue-specific gene *** these expanded gene families,we identified key genes showing preferential expression in roots and association with platycoside *** addition,wholegenome bisulfite sequencing showed that CYP716 and bAS genes are hypomethylated in ***,suggesting that epigenetic modification of these two gene families affects platycoside *** whole-genome,transcriptome,and methylome data of *** provide novel insights into the regulation of platycoside biosynthesis by CYP716 and bAS gene families.

关键词： properties insight roots

Cambrian Stem-group Cnidarians with a New Species from the Cambrian Series 3 of the Taebaeksan Basin, Korea

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Acta Geologica Sinica(English Edition) 2016年第3期90卷 827-837页

作者： Tae-Yoon S.PARK Ji-Hoon KIHM Jusun WOO Yong-Yi ZHEN Michael ENGELBRETSEN Jongsun HONG Suk-Joo CHOH dong-jin lee Division of Polar-Earth System Sciences Korea Polar Research Institute Geological Survey of New South Wales W.B.Clarke Geoscience Centre Research Affiliate Biological Sciences Macquarie University Department of Earth and Environmental Sciences Korea University Department of Earth and Environmental Sciences Andong National University

Five species, Lipopora lissa Jell and Jell, 1976, Lipopora daseia Jell and Jell, 1976, Tretocylichne perplexa Engeibretsen, 1993 from Australia, Cambroctoconus orientalis Park, Woo, lee, lee, lee, Han and Chough, 2011 from China, and Cambroctoconus kyrgyzstanicus Peel, 2014 from Kyrgyzstan, belonging to the Cambrian stem-group cnidarians have been documented in the fossil record. Cambroctoconus coreaensis sp. nov., interpreted here as a stem-group cnidarian, from the Seokgaejae section in the Daegi Formation, Taebaek Group （Cambrian Series 3）, Taebaeksan Basin, central-eastern Korean Peninsula, has a slender cup-shaped skeleton. A cladistic analysis produced 21 most parsimonious trees, which invariably placed the six stem-group cnidarians below the crown-group, but their relationships within the stem-group are unresolved. Nine out of the 21 trees suggest a monophyletic relationship for the Cambrian stem-group cnidarians, whereas in six other trees a monophyly of Cambroctoconus and Tretocylichne appeared as the sister-group to the crown-group cnidarians with Lipopora at the most basal branch. This result may reflect the fact that crown-group cnidarians evolved in the Precambrian, and suggests that the diversity of stem-group cnidarians was a result of an independent radiation in the Cambrian.

关键词： Phylogeny Cnidaria Cambrian Drumian Taebaeksan Basin Korea

Enhanced solid-electrolyte interface efficiency for practically viable hydrogen-air fuel cell systems

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Journal of Energy Chemistry 2025年第1期100卷 356-368页

作者： Venkitesan Sakthivel dong jin Yoo Graduate School Department of Energy Storage/Conversion Engineering (BK21 FOUR) Hydrogen and Fuel Cell Research Center Jeonbuk National University Jeonju Department of Life Science Jeonbuk National University

Proton exchange membrane fuel cells （PEMFCs） provide an appealing sustainable energy system,with the solid-electrolyte membrane playing a crucial role in its overall ***,sulfonated poly（1,4-phenylene ether-ether sulfone）(SPEES),an aromatic hydrocarbon polymer,has garnered considerable attention as an alternative to Nafion ***,the long-term durability and stability of SPEES present a significant *** this context,we introduce a potential solution in the form of an additive,specifically a core–shell-based amine-functionalized iron titanate （A–Fe2TiO5）,which holds promise for improving the lifetime,proton conductivity,and power density of SPEES in *** modified SPEES/A–Fe2TiO5composite membranes exhibited notable characteristics,including high water uptake,enhanced thermomechanical stability,and oxidative ***,the SPEES membrane loaded with 1.2 wt%of A–Fe2TiO5demonstrates a maximum proton conductivity of 155 mS cm-1,a twofold increase compared to the SPEES membrane,at 80°C under 100%relative humidity （RH）.Furthermore,the 1.2 wt%of A–Fe2TiO5/SPEES composite membranes exhibited a maximum power density of 397.37 mW cm-2and a current density of 1148 mA cm-2at 60°C under 100%RH,with an opencircuit voltage decay of 0.05 m V/h during 103 h of continuous *** study offers significant insights into the development and understanding of innovative SPEES nanocomposite membranes for PEMFC applications.

关键词： Acid-base Hybrid membrane Proton conductivity Polymer electrolyte fuel cell Single-cell performance

Analysis of Material Loss Behavior According to Long-Term Experiments on LDIE-FAC Multiple Degradation of Carbon Steel Materials

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World Journal of Nuclear Science and Technology 2022年第1期12卷 1-10页

作者： Kyeong Mo Hwang dong jin lee Hun Yun Seung Chang Yoo Ji Hyeon Kim SI Business Department KEPCO E&C Gimcheon-si Korea Nuclear Engineering Department UNIST Ulsan-si Korea

Recently, damage caused by liquid droplet impingement erosion (LDIE) in addition to flow-accelerated corrosion (FAC) has frequently occurred in the secondary side steam piping of nuclear power plants, and the damage-occurring frequency is expected to increase as their operating years’ increase. In order to scrutinize its causes, therefore, an experimental study was conducted to understand how the behavior of LDIE-FAC multiple degradation changes when the piping of nuclear power plants is operated for a long time. Experimental results show that more magnetite was formed on the surface of the carbon steel specimen than on the low-alloy steel specimen, and that the rate of magnetite formation and extinction reached equilibrium due to the complex action of liquid droplet impingement erosion and flow-accelerated corrosion after a certain period of time. Furthermore, it was confirmed at the beginning of the experiment that A106 Gr.B specimen has more mass loss than A335 P22 specimen. After a certain period of time, however, the mass loss tends to be the opposite. This is presumed to have resulted from the magnetite formed on the surface playing a role in suppressing liquid droplet impingement erosion. In addition, it was confirmed that the amount of erosion linearly increases under the conditions in which the formation and extinction of magnetite reach equilibrium.

关键词： Liquid Droplet Impingement Erosion (LDIE) Flow-Accelerated Corrosion (FAC) Multiple Degradations ToSPACE Wall Thinning Magnetite

CaH2-promoted activity of Ni-carbonate interface for CO2 methanation

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Journal of Energy Chemistry 2025年第1期100卷 522-532页

作者： jin-Peng Wang Guo-Cui Mao Hui-Lin Jiang Bao-Xia dong Yun-Lei Teng School of Chemistry and Chemical Engineering Yangzhou University

Transition metal-carbonate interfaces often act as active sites in heterogeneous catalytic *** interface between transition metal and metal carbonate exhibits a dynamic equilibrium during the CO2hydrogenation reaction,involving surface carbonate hydrogenation and ***,there have been few reports on engineering the activity of the interface between transition metal and alkaline earth metal carbonate for catalytic *** work demonstrated that the incorporation of CaH2in Ni/CaCO3enhances the CO2methanation activity of the *** CO2conversion for Ni/CaH2-CaCO3reached 68.5%at 400°C,which was much higher than that of the Ni/CaCO3（31.6%） and Ni/CaH2-CaO （42.4%） ***,the Ni/CaH2-CaCO3catalysts remained stable during the stability test for 24 h at 400°C and 8 *** research revealed that CaH2played a crucial role in promoting the activity of the Ni-carbonate interface for ***2could modify the electronic structure of Ni and tune the structural properties of CaCO3to generate medium basic sites （OH groups）,which are favorable for the activation of H2and ***-situ Fourier transform infrared spectroscopy （FTIR） analysis combined with density functional theory calculations demonstrated that CO2activation occurs at the hydroxyl group （OH） on the CaH2-modified Ni-carbonate surface,leading to the formation of CO3H****,our study has confirmed that CO2methanation over the Ni/CaH2-CaCO3catalysts proceeds via the formate pathway.

关键词： Metal hydride Ni catalysts Carbonate Metal-carbonate interface

Negative efficacy of antidepressants in pharmacotherapy of child and adolescent depression

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World Journal of Psychiatry 2025年第1期15卷 32-36页

作者： Min Xu Hai-Ying jin Feng-Li Sun Wei-dong jin Department of Psychiatry Zhejiang Chinese Medical UniversityHangzhou 310053Zhejiang ProvinceChina Department of Psychiatry Tongde Hospital of Zhejiang ProvinceHangzhou 310012Zhejiang ProvinceChina Department of Psychiatry Zhejiang Provincial Mental Health CenterHangzhou 311122Zhejiang ProvinceChina

Antidepressants are the main drugs used to treat depression,but they have not been shown to be effective in the treatment of child and adolescent ***,many adolescent depression treatment guidelines still recommend the use of antidepressants,especially specific serotonin re-uptake *** studies have suggested that antidepressants have little therapeutic effect but many side effects,such as switching to mania,suicide,and non-suicidal self injury(NSSI),in the treatment of child and adolescent *** the process of developing guidelines,drug recommendations should not only focus on impro-ving symptoms,but they should also consider potential side *** review discusses the serious side effects of antidepressants,including switching to mania,suicide,and NSSI.

关键词： Child depression Adolescent depression Antidepressant Switch Suicide Non-suicidal self injury

Aligned Ion Conduction Pathway of Polyrotaxane‑Based Electrolyte with Dispersed Hydrophobic Chains for Solid‑State Lithium–Oxygen Batteries

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Nano-Micro Letters 2025年第2期17卷 169-186页

作者： Bitgaram Kim Myeong‑Chang Sung Gwang‑Hee lee Byoungjoon Hwang Sojung Seo Ji‑Hun Seo dong‑Wan Kim Department of Materials Science and Engineering Korea University145 Anam‑RoSeongbuk‑GuSeoul 02841Republic of Korea School of Civil Environmental and Architectural EngineeringKorea University145 Anam‑RoSeongbuk‑GuSeoul 02841Republic of Korea Materials Science and Chemical Engineering Center Institute for Advanced Engineering(IAE)Yongin 17180Republic of Korea

A critical challenge hindering the practical application of lithium–oxygen batteries(LOBs)is the inevitable problems associated with liquid electrolytes,such as evaporation and safety *** study addresses these problems by proposing a modified polyrotaxane(mPR)-based solid polymer electrolyte(SPE)design that simultaneously mitigates solvent-related problems and improves ***-SPE exhibits high ion conductivity(2.8×10^(−3)S cm^(−1)at 25℃)through aligned ion conduction pathways and provides electrode protection ability through hydrophobic chain *** this mPR-SPE into solid-state LOBs resulted in stable potentials over 300 *** situ Raman spectroscopy reveals the presence of an LiO_(2)intermediate alongside Li_(2)O_(2)during oxygen *** situ X-ray diffraction confirm the ability of the SPE to hinder the permeation of oxygen and moisture,as demonstrated by the air permeability *** present study suggests that maintaining a low residual solvent while achieving high ionic conductivity is crucial for restricting the sub-reactions of solid-state LOBs.

关键词： Solid polymer electrolyte Lithium-oxygen batteries Polyrotaxane ion conductivity Hydrophobic chain

Creep and tensile properties of press molding joined GMT-sheets

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Transactions of Nonferrous Metals Society of China 2011年第A1期21卷 170-174页

作者： jin-Woo KIM dong-Gi lee Center for NDE Iowa State University Department of Mechatronics Engineering Chosun University

GMT-sheet is used in automobile bumper with high rigidity and strength, and its joining strength is influenced by lap length, one of the joined molding conditions. Fracture strength was calculated by dividing fracture load with cross-sectional area. Total five repeated measurements were made to obtain the average value. Tensile test was conducted at room temperature for 10 specimens. In addition, the effect of compression ratio on creep and tensile performance during lap joined molding was discussed. With increasing lap length, the lap joining efficiency of GMT-sheet was increased. However, higher compression ratio reduced the joining efficiency. Creep test on GMT-sheet showed abrupt fracture without tertiary creep. This can be explained by the weak thermal resistance of the resin. If GMT-sheet was exposed to high temperature for a long time, it was easily failed by external force.

关键词： GMT-sheet randomly oriented composite unidirectional oriented composite compression ratio lap joint

Mediating role of health literacy in the relationship between social isolation and psychological distress among pre-frail older adults

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World Journal of Psychiatry 2025年第1期15卷 137-144页

作者： Juan Fang Li-Hui Li Ming-Qian He Yue Ji dong-Yan Lu Li-Bing Zhang jin-Lan Yao School of Medicine Huzhou UniversityHuzhou 313000Zhejiang ProvinceChina

BACKGROUND Frailty has become a significant public health *** recent increase in the number of frail older adults has led to increased attention being paid to psycho-logical care services in *** social isolation of pre-frail older adults can impact their psychological *** To explore the mediating effect of health literacy between social isolation and psychological distress among communitydwelling older adults with *** This descriptive cross-sectional study was conducted with 254 pre-frail older individuals aged 60 years and *** isolation,health literacy,and psycholo-gical distress were comprehensively measured using the Lubben Social Network Scale-6,12-item Short-Form Health Literacy Questionnaire,and the Kessler Psy-chological Distress *** were evaluated using the SPSS 27.0 package program and the PROCESS macro *** statistical analyses,correlation analyses,and bootstrap mediation tests were used to assess associations between the *** The results showed that social isolation had an effect on health literacy among pre-frail older adults(β=0.240,P<0.001),social isolation impact on psycho-logical distress pre-frail older adults(β=-0.415,P<0.001);health literacy was identified effect on psychological distress among pre-frail older persons(β=-0.307,P<0.001).Health literacy partially mediated the relationship between social isolation and psychological distress among community-dwelling older adults with pre-frailty,with a mediation effect of-0.074,accounting for 17.83%of the total effect.

关键词： Frail Ageing Psychological distress Health literacy Social isolation