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Bilayer self-assembly on a hydrophilic, deterministically nanopatterned surface

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Nano Research 2013年第11期6卷 784-794页

作者： Gregory S. Smith Seung-Yong jung James F. Browning Jong k. keum Nickolay V. Lavrik Mussie G. Alemseghed c. Patrick collier Biology and Soft Matter Division Oak Ridge National Laboratory Oak Ridge TN 37831 USA center for Nanophase Materials Sciences Oak Ridge National Laboratory Oak Ridge TN 37831 USA chemical and Engineering Materials Division Oak Ridge National Laboratory Oak Ridge TN 37831 USA Department of chemical and Materials Engineering University of Cincinnati Cincinnati OH 45221-0012 USA

We present measurements of the in situ, microscopic architecture of a self- assembled bilayer at the interface between a regularly nanopatterned surface and an aqueous sub-phase using neutron reflectometry. The substrate is patterned with a rectangular array of nanoscale holes. Because of the high quality of the pattern, using neutron reflectometry, we are able to map the surface-normal density distribution of the patterned silicon, the penetration of water into the pattern, and the distribution of a deposited film inside and outside of the etched holes. In this stud; 1,2-dilauroyl-sn-glycero-3-phosphocholine （DLPc） single bilayers were deposited on the hydrophilic patterned surface. For bilayers deposited either by vesicle fusion （VF） or by the Langmuir-Schaefer （L-S） technique, the most consistent model found to fit the data shows that the lipids form bilayer coatings on top of the substrate as well as the bottoms of the holes in an essentially conformal fashion. However, while there is a single bilayer on the unetched silicon surface, the lipids coating the bottoms of the holes form a complex bimodal structure consistent with a rough surface produced by the etching process. This study provides insight into film transfer both outside and inside regular nanopatterned features.

关键词： thin film nanopattern neutron reflectivity lipid self-assembly

Macro-and microcirculation patterns of intrahepatic blood flow changes in patients with hereditary hemorrhagic telangiectasia

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World Journal of Gastroenterology 2017年第3期23卷 486-495页

作者： Roland c Schelker Ana P Barreiros christina Hart Wolfgang Herr Ernst-Michael jung Department of Internal Medicine III Hematology and OncologyUniversity Hospital of Regensburg93051 RegensburgGermany Ernst-Michael jung Department of RadiologyUniversity Hospital of Regensburg93051 RegensburgGermany

AIM To evaluated vascular dynamic processes in the liver of hereditary hemorrhagic telangiectasia(HHT) patients by ultrasound(US) considering quantitative analytic methods. METHODS The imaging features on US and contrast-enhanced ultrasound(cEUS) in 18 patients diagnosed with HHT were retrospectively analyzed. Regarding cEUS, realtime contrast harmonic imaging and sulfur hexafluoridefilled microbubbles were used. RESULTS HVa Ms were identified in all 18 patients. By US, the two major caselitz criteria could be detected in 55.6% patients. "color spots" were detected in 72.2% of the cases. Respecting sonographic grading criteria by Buscarini, grade 3 could be demonstrated most frequent(40%). By cEUS, all the patients showed quick and early hyperenhancement during the arterial phase. Significant lowest time to peak(TTP) and highest area under the curve(AUc) values were identified in the hepatic artery(TTP: 69.8%; AUc: 100%) and highest TTP and lowest AUc in the hepatic parenchyma and the portal vein. cONcLUSION For the first time we analyzed cEUS findings of a group of HHT patients regarding macro- and microcirculation. Our data demonstrate significant differences in TTP and AUc values in the four selected regions: hepatic artery, shunt region, portal vein and hepatic parenchyma.

关键词： Hereditary hemorrhagic telangiectasia Intrahepatic shunts contrast-enhanced ultrasound Time-intensity-curve

Extended Gate Field Effect Transistor Based Measuring of the Vitamin c content of Orange Juice

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稀有金属材料与工程 2006年第A3期35卷 342-343页

作者： jung-chuan chou Department of Electronic Engineering National Yunlin University of Science and TechnologyDouliouTaiwan 640China

An extended-gate field effect transistor (EGFET)of SnO_2/ITO glass was applied to manufacture the vitamin c ***,we immobilized the ascorbate oxidase with 3-glycidoxypropyltrimethoxysilane (GPTS)method to measure the different concentrations of the vitamin c solution in an optimum measurement *** order to find the best measurement conditions of the biosensor,we studied the vitamin c sensor in different pH values of the phosphate buffer solution (PBS).Additionally,we used experimental results to discuss the response time and response voltage to compare vitamin c with orange juice for the vitamin c sensor.

关键词： orange juice extended-gate field effect transistor SnO2/ITO glass vitamin c sensor

On an Asymptotic Behavior of Exponential Functional Equation

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Acta Mathematica Sinica,English Series 2006年第2期22卷 583-586页

作者： Soon-Mo jung Mathematics Section college of Science and Technology Hong-Ik University

The stability problems of the exponential （functional） equation on a restricted domain will be investigated, and the results will be applied to the study of an asymptotic property of that equation. More precisely, the following asymptotic property is proved： Let X be a real （or complex） normed space. A mapping f ： X → c is exponential if and only if f（x ＋ y） - f（x）f（y） → 0 as ｜｜x｜｜＋｜｜y｜｜ → ∞ under some suitable conditions.

关键词： Exponential equation Stability Superstability

Design-space adaptation method for multiobjective and multidisciplinary optimization

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chinese Journal of Aeronautics 2024年第8期37卷 166-189页

作者： Jongho jung kwanjung YEE Shinkyu JEONG Department of Aerospace Engineering Seoul National UniversitySeoul 08826Republic of Korea Department of Mechanical Engineering Kyunghee UniversityYoungin 17104Republic of Korea

This paper developed a new method that adaptively adjusts a design space by considering the actual solution distribution of a problem to overcome the conventional design-space adaptation method that assumes the solutions distribution to be a normal distribution because the distributions of solutions are rarely normal distributions for real-world *** developed method was applied to nineteen multiobjective test functions that are widely used to evaluate the characteristics and performance of optimization *** results showed that this method adapted the design space to an appropriate design space where the solution existence probability was *** optimization performance achieved using the developed method was higher than that of the conventional ***,the developed method was applied to the conceptual design of an unmanned spacecraft to confirm its validity in real-world design and multidisciplinaryoptimization *** results showed that the Pareto solutions of the developed method were superior to those of conventional ***,the optimization efficiency with the developed method was improved by more than 1.4 times over that of the conventional *** this regard,the developed method has the potential to be applied to complicated real-world optimization problems to achieve better performance and efficiency.

关键词： Multiobjective optimization Multiobjective genetic algorithm Design-space adaptation Multidisciplinary optimization Hypersonic vehicle

ASL Recognition by the Layered Learning Model Using clustered Groups

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computer Systems Science & Engineering 2023年第4期45卷 51-68页

作者： jungsoo Shin Jaehee jung Department of Information and communication Engineering Myongji UniversityYonginKorea

American Sign Language(ASL)images can be used as a communication tool by determining numbers and letters using the shape of the ***,ASL can have an key role in communication for hearing-impaired persons and conveying information to other persons,because sign language is their only channel of *** ASL recognition methods primarily adopt images,sensors,and pose-based recognition techniques,and employ various gestures together with *** study briefly reviews these attempts at ASL recognition and provides an improved ASL classification model that attempts to develop a deep learning method with *** the proposed model,the collected ASL images were clustered based on similarities in shape,and clustered group classification was first performed,followed by reclassification within the *** experiments were conducted with various groups using different learning layers to improve the accuracy of individual image *** selecting the optimized group,we proposed a meta-layered learning model with the highest recognition rate using a deep learning method of image *** proposed model exhibited an improved performance compared with the general classification model.

关键词： American sign language deep learning recognition cNN ResNet clustered group

Landscape and scale-dependent spatial niches of bats foraging above intensively used arable fields

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Ecological Processes 2017年第1期6卷 249-263页

作者： Olga Heim Lukas Lorenz Stephanie kramer-Schadt kirsten jung christian c.Voigt Jana A.Eccard Leibniz Institute for Zoo and Wildlife Research Alfred-Kowalke-Str.1710315 BerlinGermany Animal Ecology Institute of Biochemistry and BiologyUniversity of PotsdamMaulbeerallee 114469 PotsdamGermany Institute of Evolutionary Ecology and conservation Genomics University of UlmAlbert-Einstein-Allee 1189069 UlmGermany Department of Animal Behaviour Freie Universität BerlinTakustr.314195 BerlinGermany

Introduction:Bats are threatened by agricultural intensification,and although bat ecology in agricultural landscapes is in the focus of current research,the effects of interacting spatiotemporal factors on species-specific bat activity above farmland remain *** aim was to identify spatiotemporal factors and their interactions relevant for the activity of bat species above conventionally managed arable ***:We repeatedly monitored relative bat activity above open arable fields in Germany using acoustic *** used site-related biotic and abiotic factors and landscape characteristics across five spatial scales,their combinations,and interactions to identify those factors which best explain variation in bat ***:Numerous interactions between landscape characteristics and the insect abundance affected bat activity above *** instance,Pipistrellus pipistrellus became more active with increasing insect abundance,but only above fields with a low proportion of woody vegetation cover in the ***,the level of bat activity in summer depended on landscape *** example,the activity of Pipistrellus nathusii was relatively low in summer above fields that were surrounded by vegetation patches with a high degree of edge complexity(e.g.,hedgerow).However,the activity remained at a relatively high level and did not differ between seasons above fields that were surrounded by vegetation patches with a low degree of edge complexity(e.g.,roundly shaped forest patch).conclusions:Our results revealed that landscape characteristics and their interactions with insect abundance affected bat activity above conventionally managed fields and highlighted the opportunistic foraging behavior of *** improve the conditions for bats in agricultural landscapes,we recommend re-establishing landscape heterogeneity to protect aquatic habitats and to increase arthropod availability.

关键词： AgroScapeLabs European bat species Agriculture Landscape Multi-scale habitat modeling Ecosystem service conservationAgroScapeLabs European bat species Agriculture Landscape Multi-scale habitat modeling Ecosystem service conservation

A FRAMEWORk OF SETTING UP GOAL cONTROL LIMITS OF TARGET cOSTING FOR NON-NORMAL DISTRIBUTIONS

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Journal of Systems Science and Systems Engineering 2007年第4期16卷 424-433页

作者： Hsin-Hung WU Fong-jung YU Department of Business Administration National Changhua University of Education Changhua Taiwan China Department of Industrial Engineering and Technology Management Da-Yeh University Changhua Taiwan China

This study provides a framework of target costing to extend its original scope when the underlying distribution is non-normal. The new specification limits can be derived by listening to the market price from Taguchi loss function. Later, the new specification limits can be linked through the non-normality-based c^^pk value along with non-normality-based X^^-Rcontrol charts to derive goal control limits. Moreover, an example is provided to illustrate the usefulness of the proposed framework of target costing by relentlessly reducing cost and improving product quality to gain competitiveness in the marketplace.

关键词： Target costing Taguchi loss function goal control limit process capability index non-normal distribution

Reduced interface energy loss in non-fullerene organic solar cells using room temperature-synthesized SnO2 quantum dots

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Journal of Materials Science & Technology 2020年第17期52卷 12-19页

作者： In Su Jin Minwoo Park Jae Woong jung Department of Advanced Materials Engineering for Information&Electronics Kyung Hee University1732 Deogyeong-daeroGiheung-guYongin-siGyeonggi-do 446-701Republic of Korea Department of chemical and Biological Engineering Sookmyung Women's UniversitySeoul 04310Republic of Korea

We herein report the room temperature synthesis of colloidal SnO2 quantum dots and their application in non-fullerene organic solar cells as an excellent electron transport *** thiourea-assisted hydrolysis at room temperature affords the nanocrystalline SnO2 quantum dots with a diameter of 3-4 *** utilization of the SnO2 quantum dots as an electron transporting layer effectively reduces the interfacial trap density and charge recombination in the solar cell devices,leading to not only the reduced energy loss but also excellent photocurrent *** optimized organic solar cells employing SnO2 quantum dots with polyethylenimine ethoxylated achieves power conversion efficiencies up to 12.023%with a VOc,a JSc,and a FF of 0.89 V,18.89 mA cm^–2,and *** work suggest that the SnO2 quantum dot is a promising electron transporting material to construct efficient organic solar cells for practical *** work also demonstrates the key strategy for thiourea-assisted hydrolysis to synthesize fine and nanocrystalline SnO2 quantum dots.

关键词： Energy loss Organic solar cells Interface SnO2 Quantum dots