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Journal of Integrative Plant Biology 2008年第1期50卷 92-101页

作者： Mao-jun Xu ju-Fang dong Department of Biotechnology Zhejiang Gongshang University Hangzhou 310035 China

Secondary metabolites not only play important ecological roles in plants but also are important pharmaceutical and source compounds for derivative synthesis. Production of plant secondary metabolites is believed to be controlled by the endogenous signal network of plants. However, the molecular basis is still largely unknown. Here we show that matrine production of Sophora flavescens Ait. cells treated with low levels of jasmonic acid （JA） and nitric oxide （NO） is significantly increased although treatment with low concentrations of JA or NO alone has no effects on matrine production, showing that JA and NO may act synergistically in triggering matrine production. Moreover, treatment with NO triggers lipoxygenase （LOX） activity and enhances JA levels of the cells, showing that NO may activate the endogenous JA biosynthesis of S. flavescens cells. External application of JA induces nitric oxide synthase-like activities and stimulates NO generation of S. flavescens cells, which suggests that JA may trigger NO generation of the cells. Thus, the results reveal a mutually amplifying reaction between JA and NO in S. flavescens cells. Furthermore, JA and NO inhibitors suppress not only the mutually amplifying reaction between JA and NO but also the synergistic effects of NO and JA on matrine production. Therefore, the data demonstrate that the synergistic action of JA and NO in inducing matrine production might be due to the mutually amplifying reaction between JA and NO in the cells.

关键词： jasmonic acid nitric oxide matrine Sophora flavescens cells.

Electrochemically stable lithium-ion and electron insulators(LEIs)for solid-state batteries

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Nano Research 2022年第2期15卷 1213-1220页

作者： Kai Pei So Yeon kim ju Li Frontier Institute of Science and Technology Xi'an Jiaotong UniversityXi'an 710049China Department of Materials Science and Engineering and Department of Nuclear Science and Engineering Massachusetts Institute of TechnologyCambridgeMA 02139USA

Rechargeable solid-state Li metal batteries demand ordered flows of Li-ions and electrons in and out of solid structures,with repeated waxing and waning of Ubcc phase near contact interfaces which gives rise to various electro-chemo-mechanical *** have been approaches that adopt three-dimensional(3D)nanoporous architectures consisting of mixed ion-electron conductors(MIECs)to combat these ***,there has remained an issue of LiBcc nucleation at the interfaces between different solid components(e.g.,solid electrolyte/MlEC interface),which could undermine the interfacial bonding,thereby leading to the evolution of mechanical instability and the loss of ionic/electronic *** this regard,the present work shows that the Li-ion and electron insulators(LEIs)that are thermodynamically stable against LiBcc could combat such challenges by blocking transportation of charge carriers on the interfaces,analogous to dielectric layers in *** searched the ab initio database and have identified 48 crystalline compounds to be LEI candidates(46 experimentally reported compounds and 2 hypothetical compounds predicted to be stable)with a band gap greater than 3 eV and vanishing Li *** these compounds,those with good adhesion to solid electrolyte and mixed ion-electron conductor of interest,but are lithiophobic,are expected to be the most *** also extended the search to Na or K metal compatible alkali-ion and electron insulators,and identified some crystalline compounds with a property to resist corresponding alkali-ions and electrons.

关键词： electrochemical stability window stress fracture adhesion contact lithium metal anode

Effect of manufacturing methods of AgCl/Al_2O_3 catalyst on selective catalytic reduction of NO_x

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Journal of Environmental Sciences 2011年第6期23卷 1033-1037页

作者： Satoshi Kishida dong-Ying ju Hirofumi Aritani Advanced Science Research Laboratory Saitama Institute of Technology 1690 Fusaiji Fukaya 369-0293 Japan Faculty of Engineering Saitama Institute of Technology 1690 Fusaiji Fukaya 369-0293 Japan Department of Life Science & Green Chemistry Saitama Institute of Technology 1690 Fusaiji Fukaya 369-0293 Japan

The AgCl/Al2O3 catalyst has potential for use in the selective catalytic reduction（SCR） of NOx.A compound hydrocarbon,following oxygenation is used as a type of reducing *** this experiment,the AgCl/Al2O3 catalyst was produced by four different methods,and the differences among their reduction catalysis of NOx were *** was used as a type of reducing agent.X-ray diffraction analysis was performed to study the crystalline structure and scanning electron microscope and transmission electron microscope（TEM） were applied to determine the *** results indicated that,in the range of 350-400℃,there was no significant difference on the NOx reduction rate;however,there was dispersion at high and low temperature *** size of the AgCl particles was about 20-100 nm.

关键词： AgCl/Al2O3 catalytic reduction SCR NOx

Development of materials database system for cae system of heat treatment based on data mining technology

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中国有色金属学会会刊：英文版 2006年第B2期16卷 572-576页

作者： GU Qiang ZHONG Rui ju dong-ying Graduate School of Engineering Saitama Institute of Technology Fusaiji 1690 Fukaya Saitama 369-0293 Japan Computer Science Deptartment Saitama Institute of Technology Fusaiji 1690 Fukaya Saitama 369-0293 Japan

Computer simulation for materials processing needs a huge database containing a great deal of various physical properties of materials. In order to employ the accumulated large data on materials heat treatment in the past years, it is significant to develop an intelligent database system. Based on the data mining technology for data analysis, an intelligent database web tool system of computer simulation for heat treatment process named as IndBASEweb-HT was built up. The architecture and the arithmetic of this system as well as its application were introduced.

关键词：材料加工数据库系统 CAE系统热处理数据挖掘技术

Fruits extracts of Hovenia dulcis *** lipopolysaccharide—stimulated inflammatory responses through nuclear factor—kappaB pathway in Raw 264.7 cells

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Asian Pacific Journal of Tropical Medicine 2016年第4期9卷 349-355页

作者： ju-Yeon Park Jin-Young Moon Sun-dong Park Won-Hwan Park Hyuck kim Jai-Eun kim Department of Acupoint College of Korean Medicine.Dongguk University Department of Prescription College of Korean MedicineDongguk University Department of Diagnostics College of Korean Medicine.Dongguk University Department of Pathology College of Korean Medicine.Dongguk University

Objective:To investigate the anti-inflammatory effects and the action mechanism of the fruits of Horenia dulcis(***) in lipopolysaccharide(LPS)-induced mouse macrophage Raw ***:The extract of *** fruits(EHDF) were extracted with 70%*** macrophages were treated with different concentrations of EHDF in the presence and absence of LPS(1 μg/mL).To demonstrate the inflammatory mediators including nitric oxide,inducible nitric oxide synthase and cyclooxygenase(COX)-2 expression levels were analyzed by usingin vitro assay ***-derived pro-inflammatory cytokines including interleukin-1 β.tumor necrosis factor- α and prostaglandin F_2 were determined using ELISA *** viability,heme oxygenase-1 expression,nuclear factor-kappaB and nuclear factor F.2-related factors 2 translocation were also ***:EHDF potently inhibited the LPS-stimulated nitric oxide,inducible nitric oxide ***-2,interleukin-1 β and tumor necrosis factor- α expression in a dose-dependent *** suppressed the phosphorylation of inhibited kappaB-alpha and p65 nuclear *** of macrophage cells with EHDF alone induced the heme oxygenase-1 and nuclear translocation of nuclear factor E2-reIated factor ***:These results suggest that the ethanol extract of *** fruit exerts its anti-inflammatory effects by inhibiting inhibited kappaBalpha phorylation and nuclear translocation of nuclear factor-kappaB.

关键词： Fruits of Hovenia dulcis Inflammation Macrophage Nuclear factor-kappaB Heme oxygenase-1

Characteristics of carbonatites from the northern part of the Korean Peninsula: A perspective from distribution, geology and geochemistry

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Geoscience Frontiers 2021年第1期12卷 173-181页

作者： Jinkon ju Yunsong kim Mansik Gang School of Resource and Exploration Engineering Kim Chaek University of TechnologyPyongyangNorth Korea Central Survey Group of Mineral Resources PyongsongNorth Korea

The present study introduces the carbonatite in the northern part of the Korean Peninsula for the first *** exploration and development of the phosphorus-bearing carbonate rocks in the area have accumulated new geological data which gave us an opportunity to study origin of the carbonate *** conducted geological survey,geochemical analyses of trace elements and rare earth elements,and carbon and oxygen isotope analyses for the carbonatites from Ssangryong,Pungnyon,Yongyu and Puhung districts of the northern part of the Korean *** research confirms that the phosphorus-bearing carbonate rocks are carbonatite originating from the *** studied carbonatites are distributed at the junctions of ring and linear structures or around their margins and contain a greater amount of REEs,Y,and Sr than carbonate *** carbonatites in Yongyu and Puhung area show evidence that they were formed from mantle plume generated at the lower mantle and display similar fractionation characteristics to carbonatites in Barrado Itapirapua in Brazil and Kalkfeld and Ondurakorume in *** patterns of the carbonatites are typical of carbonatites and the carbon and oxygen isotope analyses demonstrate that the carbonatites were originated from *** carbonatites from the northern part of the Korean Peninsula have a great potential for sources of REE,Y,PGE(platinum group elements),copper,and gold.

关键词： Carbonatite Rare-earth elements Stable isotope composition Phoscorite Platinum group elements Korean Peninsula

Preparation and characterization of 3-dimensionally ordered macroporous SiC

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Science China(Technological Sciences) 2006年第1期49卷 1-9页

作者： kim dong-pyo Department of Fine Chemical Engineering and Chemistry of Chungnam National University Taejon 305-764 South Korea

Three-dimensionally (3D) long range ordered macroporous SiC ceramics were prepared through infiltrating polymethylsilane (PMS) into the 3D ordered sacrificial silica template, pyrolysis and the template removal. It was found that the pore size (84―658 nm), BET surface area (299.44―584.64 m2/g) and micropore volume (0.25―0.64 cm3/g) of the achieved porous SiC can be tailored by utilizing different sizes silica sphere templates. There exist three kinds of pores in the porous ceramics: sphere inversed pores, windows and mesopores (2―5 nm). The sphere inversed pores were packed as hcp structure and three dimensionally penetrated through the windows, and the mesopores endowed the porous ceramics surprising high BET surface areas and micropore volumes.

关键词： three-dimensionally ordered materials, templated technique, preceramic polymer conversion technique, SiC ceramic.

Density Functional Studies of the Reaction of Ytterbium Monocation with Fluoromethane:C-F Bond Activation and Electron-Transfer Reactivity

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Chinese Chemical Letters 2002年第4期13卷 359-362页

作者： dong ju ZHANG Cheng Bu LIU Institution of Theoretical Chemistry Shandong UniversityJi nan 250100

The potential energy surface and reaction mechanism corresponding to the reaction of ytterbium monocation with fluoromethane, which represents a prototype of the activation of C-F bond in fluorohydrocarbons by bare lanthanide cations, have been investigated for the first time by using density functional theory. A direct fluorine abstraction mechanism was revealed, and the related thermochemistry data were determined. The electron-transfer reactivity of the reaction was analyzed using the two-state model, and a strongly avoided crossing behavior on the transition state region was shown. The present results support the reaction mechanism inferred from early experimental data and the related thermochemistry data can provide a guide for further experimental researches.

关键词： C-F bond activation electron transfer ytterbium monocation fluoromethane DFT

Highly impermeable and flexible silica encapsulation films synthesized by sol-gel process

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Nano Research 2022年第8期15卷 7476-7483页

作者： Si-Hoon kim Gyeong-Seok Hwang donghwan Koo dong-Hyun Seo Ye-Pil Kwon Hansuek Lee Hyesung Park Eun-chae Jeon ju-Young kim School of Materials Science and Engineering University of UlsanTechno saneop-ro 55beon-gil 12Ulsan 44776Republic of Korea Department of Materials Science and Engineering Ulsan National Institute of Science and Technology(UNIST)UNIST-gil 50Ulsan 44919Republic of Korea Department of Physics Korea Advanced Institute of Science and Technology(KAIST)Daehak-ro 291Deajeon 34141Republic of Korea Graduate School of Semiconductor Materials and Devices Ulsan National Institute of Science and Technology(UNIST)UNIST-gil 50Ulsan 44919Republic of Korea

Silica thin films synthesized sol–gel process are proposed as flexible encapsulation materials.A sol–gel process provides a dense and stable amorphous silica structure,yielding an extremely high elastic deformation limit of 4.9%and extremely low water vapor transmission rate(WVTR)of 2.90×10^(−4)g/(m^(2)∙day)at 60℃and relative humidity of 85%.The WVTR is not degraded by cyclic bending deformations for the bending radius corresponding to a tensile strain of 3.3%in the silica encapsulation film,implying that the silica thin film is robust against the formation of pinhole-type defects by cyclic bending *** organic solar cells encapsulated with the silica films operate without degradation in power conversion efficiency for 50,000 bending cycles for a bending radius of 6 mm.

关键词： silica thin film sol-gel flexible encapsulation mechanical reliability flexible organic solar cell

Fucoidan protects hepatocytes from apoptosis and inhibits invasion of hepatocellular carcinoma by up-regulating p42/44 MAPK-dependent NDRG-1/CAP43

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Acta Pharmaceutica Sinica B 2015年第6期5卷 544-553页

作者： Yuri Cho jung-Hwan Yoon Jeong-ju Yoo Minjong Lee dong Hyeon Lee Eun ju Cho Jeong-Hoon Lee Su Jong Yu Yoon jun kim Chung Yong kim Department of Internal Medicine and Liver Research Institute Seoul National University College of Medicine

Fucoidan is a traditional Chinese medicine suggested to possess anti-tumor *** this study the anti-metastatic effects of fucoidan were investigated in vitro in human hepatocellular carcinoma(HCC) cells(Huh-7 and SNU-761) under normoxic and hypoxic conditions and in vivo using a distant liver metastasis model involving injection of MH134 cells into spleen via the portal *** ability to protect hepatocytes against bile acid(BA)-induced apoptosis was investigated in primary *** was found to suppress the invasion of HCC cells through up-regulation of p42/44 MAPKdependent NDRG-1/CAP43 and partly,under normoxic conditions,through up-regulation of p42/44MAPK-dependent VMP-1 *** also significantly decreased liver metastasis in *** regards its hepatoprotective effect,fucoidan decreased BA-induced hepatocyte apoptosis as shown by the attenuation of caspase-8,and-7 cleavages and suppression of the mobilization of caspase-8 and Fas associated death domain(FADD) into the death-inducing signaling *** summary,fucoidandisplays inhibitory effects on proliferation of HCC cells and protective effects on *** results suggest fucoidan is a potent suppressor of tumor invasion with hepatoprotective effects.

关键词： Fucoidan Hepatocellular carcinoma Invasion Hypoxia Hepatoprotective Cultured hepatocyte NDRG-1/CAP43 VMP-1