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Xanthoma disseminatum with intracranial involvement

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Xanthoma disseminatum with intracranial involvement

Livedoid vasculopathy improved by intravenous immunoglobulin

The Second Eastern Asia Dermatology Congress(EADC2012)

作者： Tai Kyung Noh Hye Rim moon Chong Hyun Won Sung Eun chang Mi Woo Lee Jee Ho Choi kee chan moon Department of Dermatology Asan Medical CenterUniversity of Ulsan College of MedicineSeoulKorea

＜正＞Xanthoma disseminatum（XD） is a rare normolipidemic mucocutaneous xanthomatosis classified as a benign non-Langerhans cell *** is characterized by mucocutaneous xanthomas symmetrically distributed,typically inv...

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Livedoid vasculopathy improved by intravenous immunoglobulin

Numerical Analysis of Secondary Cooling in Continuous Slab Casting

The Second Eastern Asia Dermatology Congress(EADC2012)

作者： Tai Kyung Noh Chong Hyun Won Sung Eun chang Mi Woo Lee Jee Ho Choi kee chan moon Department of Dermatology Asan Medical CenterUniversity of Ulsan College of MedicineSeoulKorea

＜正＞Livedoid vasculopathy（LV） usually presents with painful,slowly healing ulcerations of the lower *** precise pathophysiology of this relatively rare disease remains *** strategies usually include rheologic, ant...

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Journal of Materials Science & Technology 2008年第3期24卷 389-390页

作者： kee-Hyeon Cho Byung-moon Kim Research Institute of Industrial Science & Technology GyeongBuk Regional Stragetic Agency for Innovation

In the present study, a numerical optimization program has been developed for predicting the optimal secondary cooling patterns in a continuous slab caster. Optimization strategy using Broydon-Fletcher-Goldfarb-Shanno （13FGS） method is carried out by determining the constant heat transfer coefficients in each spray zone, which could satisfy the casting conditions and metallurgical criteria specified by the engineer. From the present results, it is found that even a slight variation in the pouring temperature, allowable surface temperature, and casting speed could give rise to the changes in the cooling pattern throughout the spray zones.

关键词： Continuous casting Secondary cooling Optimization

Recent Advances in Patterning Strategies for Full‑Color Perovskite Light‑Emitting Diodes

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Nano-Micro Letters 2024年第3期16卷 99-137页

作者： Gwang Heon Lee Kiwook Kim Yunho Kim Jiwoong Yang moon kee Choi Graduate School of Semiconductor Materials and Devices Engineering Center for Future Semiconductor Technology(FUST)Ulsan National Institute of Science and Technology(UNIST)Ulsan 44919Republic of Korea Department of Energy Science and Engineering Daegu Gyeongbuk Institute of Science and Technology(DGIST)Daegu 42988Republic of Korea Energy Science and Engineering Research Center Daegu Gyeongbuk Institute of Science and Technology(DGIST)Daegu 42988Republic of Korea Department of Materials Science and Engineering Ulsan National Institute of Science and Technology(UNIST)Ulsan 44919Republic of Korea Center for Nanoparticle Research Institute for Basic Science(IBS)Seoul 08826Republic of Korea

Metal halide perovskites have emerged as promising light-emitting materials for next-generation displays owing to their remarkable material characteristics including broad color tunability,pure color emission with remarkably narrow bandwidths,high quantum yield,and solution *** recent advances have pushed the luminance efficiency of monochromic perovskite light-emitting diodes(PeLEDs)to their theoretical limits,their current fabrication using the spincoating process poses limitations for fabrication of full-color *** integrate PeLEDs into full-color display panels,it is crucial to pattern red–green–blue(RGB)perovskite pixels,while mitigating issues such as cross-contamination and reductions in luminous ***,we present state-of-the-art patterning technologies for the development of full-color ***,we highlight recent advances in the development of efficient ***,we discuss various patterning techniques of MPHs(i.e.,photolithography,inkjet printing,electron beam lithography and laserassisted lithography,electrohydrodynamic jet printing,thermal evaporation,and transfer printing)for fabrication of RGB pixelated *** patterning techniques can be classified into two distinct approaches:in situ crystallization patterning using perovskite precursors and patterning of colloidal perovskite *** review highlights advancements and limitations in patterning techniques for PeLEDs,paving the way for integrating PeLEDs into full-color panels.

关键词： Perovskite Light-emitting diode Full-color display High-resolution patterning Electroluminescence

Flow Field-Flow Fractionation with Mass Spectrometry for Top-Down and Bottom-Up Lipidomics

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Journal of Analysis and Testing 2017年第3期1卷 193-201页

作者： Seul kee Byeon Myeong Hee moon Department of Chemistry Yonsei UniversitySeoul 03722Korea

As lipidomics has attracted increased attention in life science,advanced mass spectrometry(MS)technologies have been combined with other separation techniques to improve and expand the branch of *** review intends to provide general knowledge of offline and online coupling of flow field-flow fractionation(FlFFF)—a technique that encompasses the separation of nano-to micro-scale biomolecules—with MS for analysis of blood plasma lipoproteins,processes that are considered bottomup and top-down approaches,*** first part of this review focuses on the bottom-up method using multiplexed hollow fiber FlFFF(MxHF5)and nanoflow liquid chromatography electrospray-ionization tandem mass spectrometry(nLC-ESI–MS/MS)for non-targeted identification of *** this protocol,plasma lipoproteins of different types are collected using MxHF5,and the lipids within the lipoproteins are then extracted and analyzed via nLC-ESI–MS/*** second part of the review describes the top-down approach,which uses online coupling of miniaturized FlFFF to ESI–MS for a fast screening of targeted ***,the separation of lipoproteins and detection of their component lipids are achieved *** both methods aim to quantify the lipids within lipoproteins,the bottom-up approach provides an extensive lipidome,whereas the top-down method is suitable for high-speed targeted lipidomic *** review discusses variants of FlFFF-ESI–MS/MS that offer effective analytical technologies for lipidomics.

关键词： Lipids Lipoproteins Flow field-flow fractionation Nanoflow liquid chromatography electrospray-ionization tandem mass spectrometry

Flexible quantum dot light-emitting diodes for next-generation displays

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npj Flexible Electronics 2018年第1期2卷 76-89页

作者： moon kee Choi Jiwoong Yang Taeghwan Hyeon Dae-Hyeong Kim Center for Nanoparticle Research Institute for Basic Science(IBS)Seoul 08826Republic of Korea School of Chemical and Biological Engineering Institute of Chemical ProcessesSeoul National UniversitySeoul 08826Republic of Korea

In the future electronics,all device components will be connected wirelessly to displays that serve as information input and/or output *** is a growing demand of flexible and wearable displays,therefore,for information input/output of the nextgeneration consumer *** many kinds of light-emitting devices for these next-generation displays,quantum dot light-emitting diodes(QLEDs)exhibit unique advantages,such as wide color gamut,high color purity,high brightness with low turn-on voltage,and ultrathin form ***,we review the recent progress on flexible QLEDs for the next-generation ***,the recent technological advances in device structure engineering,quantum-dot synthesis,and high-resolution full-color patterning are ***,the various device applications based on cutting-edge quantum dot technologies are described,including flexible white QLEDs,wearable QLEDs,and flexible transparent ***,we showcase the integration of flexible QLEDs with wearable sensors,micro-controllers,and wireless communication units for the next-generation wearable electronics.

关键词： diodes quantum light

Palmitic Acid-Lauric Acid/Expanded Graphite as Form-Stable Composite Phase change Material for Low-Temperature Energy Storage Applications

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Journal of Harbin Institute of Technology(New Series) 2022年第5期29卷 41-48页

作者： Adel Elgadi chan Mieow kee Tan Yong Chai Center for Advanced Materials Research and Manufacturing Processes Faculty of Engineering and the Built EnvironmentSEGi UniversityPetaling Jaya 47810SelangorMalaysia

Low thermal conductivity of binary fatty acid mixture of palmitic and lauric acids(PA-LA)within the value range of 0.15-0.17 W/(m·K)restricts its wide utilization as thermal energy storage material in the active regime of solar heating applications at low operating ***,this mixture as phase change material(PCM)has a suitable phase-change temperature and heat of 36℃and 176.3 J/g,***,the objective of this study is to formulate a novel form-stable composite PCM with the PA-LA mixture and expanded graphite(EG)as a thermal ***-LA eutectic mixture with varied concentrations of EG was prepared and *** thermal conductivity of PA-LA/EG increased gradually with the mass of *** thermal properties were observed in PA-LA/(5%EG)composite,where its melting(T_(m)),freezing temperature(T_(t)),latent melting heat and thermal conductivity was 35.53℃,34.84℃,174 J/g,and 1.19 W/(m·K),***,the composite PCM is characterized by good chemical-thermal stability and thermal reliability for long-term *** conclusion,it can be utilized as a prospective form-stable PCM for thermal energy storage in solar heating systems,overheat treatment systems,and other thermal storage applications at low operating temperatures.

关键词： binary mixture PCM of fatty acid expanded graphite thermal conductivity thermal reliability and stability

Duo Property on the Monoid of Regular Elements

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Algebra Colloquium 2022年第2期29卷 203-216页

作者： chan Yong Hong Hong kee Kim Nam Kyun Kim Tai Keun Kwak Yang Lee Department of Mathematics Kyung Hee UniversitySeoul 02447Korea Department of Mathematics and RINS Gyeongsang National University Jinju 52828Korea School of Basic Sciences Hanbat National UniversityDaejeon 34158Korea Department of Mathematics Daejin UniversityPocheon 11159Korea Department of Mathematics Yanbian UniversityYanjiJilin 133002China Instituteof Basic Science Daejin UniversityPocheon 11159Korea

We study the right duo property on regular elements,and we say that rings with this property are right *** is first shown that the right duo property is preserved by right quotient rings when the given rings are right *** prove that thepolynomial ring over a ring R is right DR if and only if R is *** is also proved that for a prime number p,the group ring KG of a finite p-group G over a field K of characteristic p is right DR if and only if it is right duo,and that there exists a group ring KG that is neither DR nor duo when G is not a p-group.

关键词： right DR ring right duo ring quotient ring (skew)polynomial ring group ring

Superficial foveal avascular zone area changes before and after idiopathic epiretinal membrane surgery

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International Journal of Ophthalmology(English edition) 2018年第10期11卷 1711-1715页

作者： Yo Sep Yoon Je moon Woo Jong Eun Woo Jung kee Min Department of Ophthalmology Ulsan University Hospital College of Medicine University of Ulsan

To investigate the foveal morphological changes and foveal avascular zone（FAZ）area before and after epiretinal membrane（ERM）***-two eyes with treatmentnaive ERM were included in this retrospective *** central foveal thickness（CFT）and FAZ area were measured via swept-source optical coherence tomography（SS-OCT）and OCT angiography pre-and *** unaffected fellow eyes were used as *** preoperative superficial FAZ area was significantly smaller in patients（0.08±0.04 mm^2）than in controls（0.33±0.09 mm^2;P〈0.001）.The postoperative superficial FAZ（0.12±0.06 mm^2）area was significantly greater than the preoperative area（P〈0.001）.The preoperative superficial FAZ area was strongly negatively correlated with CFT（P〈0.001,rho=-0.763）.ERM induced significant foveal morphological changes and reduction of the superficial FAZ *** thickness was restored and FAZ area increased ***,the process is rather slow and the recovery is incomplete.

关键词： central foveal thickness epiretinal membrane foveal avascular zone optical coherence tomography angiography