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Uniform Attractors for Non-autonomous Brinkman-Forchheimer Equations with Delay

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Acta Mathematica Sinica,English Series 2013年第5期29卷 993-1006页

作者： jum-Ran KANG Jong-Yeoul PARK Department of Mathematics Dong-A University Department of Mathematics Pusan National University

In this paper, we prove the existence of a uniform attractor for non-autonomous Brinkman-Forchheimer equations with general delay and time-dependent external force.

关键词： Brinkman-Forchheimer equations uniform attractor delay translation compact

Global attractor for hyperbolic equation with nonlinear damping and linear memory

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Science China Mathematics 2010年第6期53卷 1531-1539页

作者： PARK Jong Yeoul KANG jum Ran Department of Mathematics Pusan National University Department of Mathematics Dong-A University

In this paper,we study the existence of global attractors for the hyperbolic equation with nonlinear damping and linear memory.

关键词： global attractor absorbing set asymptotically a priori estimate nonlinear damping viscoelasticity

Self-motivated,thermally oxidized hematite nanoflake photoanodes:Effects of pre-polishing and ZrO_(2) passivation layer

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Journal of Energy Chemistry 2022年第2期31卷 415-423页

作者： Love Kumar Dhandole Hyun Hwi Lee Weon-Sik Chae jum Suk Jang Jae Sung Lee Department of Energy Engineering School of Energy and Chemical EngineeringUlsan National Institute of Science and Technology(UNIST)Ulsan 44919Republic of Korea Division of Biotechnology College of Environmental and Bioresource SciencesChonbuk National UniversityIksan 54596Republic of Korea Pohang Accelerator Laboratory Pohang University of Science and Technology(POSTECH)Pohang 37673Republic of Korea Daegu Center Korea Basic Science InstituteDaegu 41566Republic of Korea

High-temperature thermal oxidation of an Fe foil produces a high-quality,crystalline hematite nanoflake suitable as a photoanode for the photoelectrochemical(PEC)water *** pre-polishing of the foil surface has a profound effect in the formation of a vertically-aligned nanoflakes of hematite phase with extended(110)planes by removing the loosely-bonded oxide *** the surface of the photoanode is modified with a ZrO_(2) passivation layer and a cobalt phosphate co-catalyst,the charge recombination at the photoanode-electrolyte interface is greatly suppressed to improve its overall PEC *** a result,the photocurrent density at 1.10 VRHE under 1 sun condition is enhanced from 0.22 mA cm^(-2) for an unmodified photoanode to 0.59 mA cm^(-2) for the fully modified photoanode,and the photocurrent onset potential is shifted cathodically by 400 ***,the photoanode demonstrates outstanding stability by showing steady production of H_(2) and O_(2) gases in the stoichiometric ratio of 2:1 in a continuous PEC operation for 10 h.

关键词： Fe foil Thermal oxidation Nanoflakes Photoelectrochemical water splitting Surface modifications

Gradient Si-and Ti-doped Fe_(2)O_(3) hierarchical homojunction photoanode for efficient solar water splitting:Effect of facile microwave-assisted growth of Si-FeOOH on Ti-FeOOH nanocorals

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Journal of Energy Chemistry 2023年第2期77卷 27-37,I0002页

作者： Tae Sik Koh Periyasamy Anushkkaran Weon-Sik Chae Hyun Hwi Lee Sun Hee Choi jum Suk Jang Division of Biotechnology College of Environmental and Bioresource SciencesJeonbuk National UniversityIksan 54596Republic of Korea Daegu Center Korea Basic Science InstituteDaegu 41566Republic of Korea Pohang Accelerator Laboratory Pohang University of Science and Technology(POSTECH)Pohang 37673Republic of Korea

The construction of a homojunction is an effective approach for addressing issues such as slow charge separation and charge-transfer kinetics in *** the present work,we designed a gradient Si-and Ti-doped Fe_(2)O_(3) homojunction photoanode to improve the photoelectrochemical(PEC)performance of a Ti-doped Fe_(2)O_(3) ***-FeOOH nanocorals were synthesized using a hydrothermal process,and Si-FeOOH was grown on Ti-FeOOH nanocorals using a rapid and facile microwaveassisted(MW)*** varying the MW irradiation time,the thickness of the Si/Ti:Fe_(2)O_(3) photoanode was adjusted and an optimized 3-Si/Ti:Fe_(2)O_(3) photoelectrode was achieved with a significantly enhanced photocurrent density(1.37 mA cm^(-2) at 1.23 V ***)and a cathodic shift of the onset potential(150 mV)compared with that of bare Ti-Fe_(2)O_(3).This enhanced PEC performance can be ascribed to homojunction formation and Si gradient *** Si dopant increased the donor concentration and the formation of a homojunction improved the intrinsic built-in electric field,thereby promoting charge separation and charge ***,the as-formed homojunction passivated the surfacetrapping states,consequently improving the charge transfer efficiency(60%at 1.23 VRHE)at the photoanode/electrolyte *** findings could pave the way for the microwave-assisted fabrication of diverse efficient homojunction photoanodes for PEC water splitting applications.

关键词： Homojunction Microwave-assisted Hematite Gradient doping PEC water splitting

Unravelling the role of the combined effect of metallic charge transfer channel and SiO_(x) overlayer in the Zr/Si-Fe_(2)O_(3):Au:SiO_(x) nanorod arrays to boost photoelectrochemical water splitting

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Journal of Energy Chemistry 2024年第3期90卷 370-379,I0009页

作者： Tae Sik Koh Periyasamy Anushkkaran Love Kumar Dhandole Mahadeo A.Mahadik Weon-Sik Chae Hyun Hwi Lee Sun Hee Choi jum Suk Jang Division of Biotechnology SafetyEnvironment and Life Science InstituteCollege of Environmental and Bioresource SciencesJeonbuk National UniversityIksan 54896Republic of Korea Department of Integrative Environmental Biotechnology College of Environmental and Bioresource SciencesJeonbuk National UniversityIksan 54596Republic of Korea Extreme Materials Research Center Korea Institute of Science and Technology(KIST)Seoul 02792Republic of Korea Daegu Center Korea Basic Science InstituteDaegu 41566Republic of Korea Pohang Accelerator Laboratory Pohang University of Science and Technology(POSTECH)Pohang 37673Republic of Korea

Hematite(α-Fe_(2)O_(3)) based photoanodes have been extensively studied due to various intriguing features that make them viable candidates for a photoelectrochemical(PEC) water splitting ***,we propose a Zr-doped Fe_(2)O_(3) photoanode decorated with facilely spin-coated Au nanoparticles(NPs) and microwave-assisted attached Si co-doping in conjunction with a SiO_(x) overlayer that displayed a remarkable photocurrent density of 2.01 mA/cm^(2) at 1.23 V *** kinetic dynamics at the photoelectrode/-electrolyte interface was examined by employing systematic electrochemical *** Au NPs played a dual role in increasing PEC water ***,the Schottky interface that was formed between Au NPs and Zr-Fe_(2)O_(3) lectrode ensured the prevention of electron flow from the photoanode to the metal,increasing the number of available charges as well as suppressing surface charge ***,Au extracted photoholes from the bulk of the Zr-Fe_(2)O_(3) and transported them to the outer SiO_(x) overlayer,while the SiO_(x) overlayer efficiently collected the photoholes and promoted the hole injection into the ***,Si co-doping enhanced bulk conductivity by reducing bulk charge transfer resistance and improving charge carrier *** study outlines a technique to design a metallic charge transfer path with an overlayer for solar energy conversion.

关键词： Hematite Microwave attachment Au nanoparticles SiO_(x) overlayer Water splitting

Fermentation of mulberry leaves with Cordyceps militaris enhanced anti-adipogenesis activity in 3T3-L1 cells through down-regulation of PPAR-γ pathway signaling

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Asian Pacific Journal of Tropical Medicine 2020年第12期13卷 557-565页

作者： Lu Guo jum Soon Kang Young Hoon Park Beong Il Je Dae Youn Hwang Woo Hong Joo Young Whan Choi Department of Horticultural Bioscience Pusan National UniversityMiryang 50463Republic of Korea Department of Biomaterials Science Pusan National UniversityMiryang 50463Republic of Korea Department of Biology and Chemistry Changwon National UniversityChangwon 51140Republic of Korea Life and Industry Convergence Research Institute Pusan National UniversityMiryang 50463Republic of Korea

Objective:To establish an efficacious and efficient fermentation method of enhancing the anti-adipogenesis effect of mulberry(Morus alba) leaves using Cordyceps ***:Dried mulberry leaves,dried mulberry leaves with50% raw silkworm pupa and raw silkworm pupa were fermented with Cordyceps militais for 4 weeks at 25℃,after which the dried mulberry leaves and fermented product were extracted with 70%ethanol and subjected to high performance liquid chromatography(HPLC).The contents of cordycepin,pelargonidin,chlorogenic acid,iso-quercetin and caffeic acid were *** then used the 3 T3-L1 cells to investigate whether extracts of fermentation enhanced anti-adipogenesis activity in ***:HPLC showed that fermentation changed the contents of cordycepin,pelargonidin,chlorogenic acid,iso-quercetin and caffeic ***,fermented dried mulberry leaves with 50% raw silkworm pupa had a better efficacy of anti-adipogenesis than dried mulberry leaves,fermented dried mulberry leaves and fermented silkworm pupa and inhibited triglycerides accumulation and glucose ***,fermented dried mulberry leaves with50% raw silkworm pupa inhibited PPAR-γ ***:Fermentation with Cordyceps militaris enhanced antiadipogenesis efficacy of mulberry leaves.

关键词： dried fermentation silkworm

患者权利保护视角下电子病历合理应用之规范思考

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中国社会科学院研究生院学报 2018年第2期 129-137页

作者：赵菊敏河南农业大学文法学院中国社会科学院马克思主义学院

电子病历的应用标志着医疗新时代的开始,承载着医疗体系改革的厚望。电子病历的应用具有纸质病历所不可比拟的优越性,同时面临着患者权利受到侵害的严重挑战。要趋利避害,必须构建以患者权利保护为中心,以《基本医疗卫生与健康促进法》... 详细信息

电子病历的应用标志着医疗新时代的开始,承载着医疗体系改革的厚望。电子病历的应用具有纸质病历所不可比拟的优越性,同时面临着患者权利受到侵害的严重挑战。要趋利避害,必须构建以患者权利保护为中心,以《基本医疗卫生与健康促进法》为基础,以《患者信息保护法》为保障,以《电子病历制作及应用管理规范》为标准的多重面向的规范体系。

关键词：电子病历患者权利保护规范体系的构建

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葡萄糖转运蛋白4与运动

中国体育科技 2006年第2期42卷 118-121,131页

作者：潘志军南京理工大学体育部江苏南京210094

了解运动怎样调节GLUT4表达以便设计把增加肌肉葡萄糖储量作为治疗糖尿病的方法是非常重要的。肌肉收缩或运动能够增加GLUT4转位和GLUT4的蛋白含量以及mRNA的表达。MEF-2和GEF可能参与对转录的控制。运动时细胞内Ca2+增加和AMPK、MAPK... 详细信息

了解运动怎样调节GLUT4表达以便设计把增加肌肉葡萄糖储量作为治疗糖尿病的方法是非常重要的。肌肉收缩或运动能够增加GLUT4转位和GLUT4的蛋白含量以及mRNA的表达。MEF-2和GEF可能参与对转录的控制。运动时细胞内Ca2+增加和AMPK、MAPK的激活能够引起GLUT4基因转录的增加,其机制有待于进一步研究。

关键词：葡萄糖转运骨骼肌 GLUT4 运动

H.264编码器在2D网孔和ASNoC中的通信量建模和映射(英文)

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系统仿真学报 2008年第10期20卷 2782-2788页

作者： Sheraz a.jum 陈杰岳培培刘建中国科学院微电子研究所北京100029 COMSATS Institute of Information Technology Pakistan

如今,SoC 设计对片上资源的需求不断增长,而总线结构却不能满足片上通信的要求。因此,设计者开始研究一种新颖的、可扩展的、模块化的设计方法学——片上网络。作者在这个领域中的主要工作是对 H.264 编码器进行通信量建模的仿真,并在... 详细信息

如今,SoC 设计对片上资源的需求不断增长,而总线结构却不能满足片上通信的要求。因此,设计者开始研究一种新颖的、可扩展的、模块化的设计方法学——片上网络。作者在这个领域中的主要工作是对 H.264 编码器进行通信量建模的仿真,并在规则及专用的 NoC 结构下提出相关的映射方法。首先,使用帧速率和分布拟合方法对H.264 编码器各个模块之间的通信量行为进行了仿真和分析;然后得到了 H.264 编码器专用的重要仿真参数的模型,如带宽、延时、包尺寸等;并利用这些通信量行为模型和参数将 H.264 编码器映射到二维网孔和专用 NoC 结构中;最终使用 Network Simulator-2 比较各参数,如平均包延时,丢包率和面积。另外,还比较了两种 NoC 结构在短期行为中的平均包延时。比较结果显示,专用 NoC 具有更低的平均包延时,更小的丢包率和更少的面积。

关键词：片上网络 H.264编码器通信量建模分布拟合 network simulator-2 二维网孔专用片上网络