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Retinal injury following intravitreal injection of a dexamethasone implant in a vitrectomized eye

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International Journal of Ophthalmology(English edition) 2017年第6期10卷 1019-1020页

作者： seung min lee Jae Woo Jung Sung Who Park Ji Eun lee Ik Soo Byon Research Institute for Convergence of Biomedical Science and Technology Pusan National University Yangsan Hospital Yangsan 50612 Korea Department of Ophthalmology College of Medicine Pusan National University Yangsan 50612 Korea Biomedical Research Institute Pusan National University Hospital Busan 49241 Korea

lee SM, Jung JW, Park SW, lee JE, Byon IS. Retinal injury following intravitreal injection of a dexamethasone implant in a vitrectomized eye. Int J Ophthalmo12017; 10（6）： 1019-1020

关键词： ME Retinal injury following intravitreal injection of a dexamethasone implant in a vitrectomized eye

Macular hole closure induced by intravitreal injection in diabetic macular edema

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International Journal of Ophthalmology(English edition) 2022年第10期15卷 1720-1722页

作者： Sang Yoon Kim Han Jo Kwon Sung Who Park Ik Soo Byon seung min lee Department of Ophthalmology Research Institute for Convergence of Biomedical Science and TechnologyPusan National University Yangsan HospitalYangsan 50612Republic of Korea Department of Ophthalmology Biomedical Research InstitutePusan National University HospitalBusan 49241Republic of Korea Pusan National University School of Medicine Yangsan 50612Republic of Korea

Dear Editor,Macular hole(MH)formation is uncommon in patients with diabetic macular edema(DME).Few cases of MH associated with DME treatment have been described,including a report of four out of eight eyes with MH and diabetic retinopathy(DR)having DME[1].However,no case of resolution of MH after DME treatment has been *** report three consecutive cases of MH closure achieved by intravitreal injection for DME treatment.

关键词： injection diabetic edema

Emulsification Properties of Lactose Fatty Acid Esters

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Food and Nutrition Sciences 2018年第12期9卷 1341-1357页

作者： seung-min lee Ashwini Wagh Guneev Sandhu Marie K. Walsh Department of Nutrition Dietetics and Food Sciences Utah State University Logan Utah USA The Clorox Service Company Pleasanton California USA

Sugar fatty acid esters (SFAE) are a class of synthetic emulsifiers used in the food, pharmaceutical, and personal care industries. The influence of the fatty acid chain length on the emulsification properties of lactose fatty acid esters (LFAE) including lactose monooctanoate (LMO), lactose monodecanoate (LMD), lactose monolaurate (LML) and lactose monomyristate (LMM) was investigated in this study. The stability of the emulsions as well as the oil droplet size distribution in 20% soybean oil-in-water emulsions was measured at 0.1%, 0.25% and 0.5% of LFAE concentrations. In order of LFAE with the strongest emulsion stabilization characteristics were LML, LMD, LMO and LMM. Oil droplet distributions resulted in the same trend, with LML and LMD maintaining the smallest droplet sizes and thus the most stable emulsion. The hydrophilic-lipophilic balance (HLB) and critical micelle concentrations were determined for each LFAE. An increase in HLB value was seen with an increased CMC value for each LFAE, showing the strength of the linear relationship between these two measured values. Additionally, there was a decrease in HLB and CMC values with a decrease in the fatty acid chain length of each LFAE. This research showed that LML and LMD formed more stable emulsions, even with HLB and CMC values higher than those of LMM suggesting HLB and CMC values alone do not predict emulsifier effectiveness.

关键词： Lactose Fatty Acid Esters Emulsions Emulsion Stability Sugar Esters

Antilisterial Activity of Lactose Fatty Acid Esters in Milk

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Food and Nutrition Sciences 2019年第7期10卷 750-760页

作者： seung-min lee Brian Nummer Brian Nummer Ashwini Wagh Marie K. Walsh Department of Nutrition Dietetics and Food Sciences Utah State University Logan Utah USA The Clorox Service Company Pleasanton California USA

Carbohydrate fatty acid esters have been shown to inhibit the growth of bacteria in growth media. In this study, the antilisterial activities of the carbohydrate esters lactose monodecanoate (LMD) and lactose monolaurate (LML) were tested in milk samples with variable fat content (up to 10%) and at different temperatures (37°C, 24°C and 5°C) after inoculation with a 5-strain Listeria monocytogenes cocktail. Both LMD and LML demonstrated antilisterial properties against L. monocytogenes in milk, with the observed log reductions in the LMD milk samples being higher than those in the LML samples at all tested temperatures. LMD in 1% and 2% fat milk was found to be bactericidal with no Listeria growth by day 6. LMD showed significant antilisterial activity in milk samples containing up to 9% fat at 37°and in samples with up to 3.5% fat at 24°C and in milk samples with up to 2% fat at 5°C. LML showed significant Listeria log reductions at 37°C with milk containing up to 9% fat but showed no microbial inhibition in milk in any samples at 24°C and 5°C. Although carbohydrate fatty acid esters have proven microbial bactericidal/bacteriostatic properties in growth media, their antimicrobial properties are reduced in a food system containing fat and at temperatures lower than 37°C. The significance of this research is identifying food constituents and storage temperatures that limit the microbial inhibitory properties of lactose esters to ensure appropriate use as potential food grade antilisterial agents.

关键词： Lactose Monodecanoate Lactose Monolaurate Antilisterial Activity Milk Fat Temperature

A miniaturized Tadpole Robot Using an Electromagnetic Oscillatory Actuator

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Journal of Bionic Engineering 2015年第1期12卷 29-36页

作者： Bu Hyun Shin Kyung-min lee seung-Yop lee Department of Mechanical Engineering Hanbat National University Daejeon 305-719 Korea Convergence Technology Examination Division Korean Intellectual Property Office Daejeon 302-701 Korea Department of Mechanical Engineering Sogang University Seoul 121-742 Korea

In this paper, we propose a miniaturized tadpole-like robot using an electromagnetic oscillatory actuator. The electro- magnetic actuator has a simple structure with a moving-magnet type and the body size is 13 mm （length） × 11 mm （height） ×10 mm （width）. A tail has the thickness of 100 μm and the length of 20 mm which is twice of the body-length （BL）. The tail attached to the oscillatory actuator generates undulatory propulsion for the forward swimming. Moreover, the tadpole robot enables the change of the direction by controlling input signal pattems applied to the oscillatory actuator. Prototypes of the tadpole robot have been manufactured and the thrust force and swimming speed are measured to evaluate the performance of the biomimetic robot in water at various tail-beat frequencies. The maximum thrust force is 42 mN at the tail-beat frequency of 30 Hz with voltage of 3 V, enabling the tadpole robot to swim at the speed of 210 mm·s^-1 （6 BL·s^-1）. The tadpole robot can also change its moving direction with the angular velocity of 21 deg·s^-1 at the half pulse pattem of 30 Hz.

关键词： fish robot biomimetics tadpole robot electromagnetic actuator

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Journal of Central South University 2013年第4期20卷 982-987页

作者： lee Myeong-ho 魏荷 lee Sang-hyuk lee Sang-min SHIN seung-soo Department of e-Commerce Semyung University Department of Electrical and Electronic Engineering Xi'an Jiaotong-Liverpool University Institute for Information and Electronics Research Inha University Department of Information Security Tongmyung University

Similarity measure design for discrete data group was proposed. Similarity measure design for continuous membership function was also carried out. Proposed similarity measures were designed based on fuzzy number and distance measure, and were proved. To calculate the degree of similarity of discrete data, relative degree between data and total distribution was obtained. Discrete data similarity measure was completed with combination of mentioned relative degrees. Power interconnected system with multi characteristics was considered to apply discrete similarity measure. Naturally, similarity measure was extended to multi-dimensional similarity measure case, and applied to bus clustering problem.

关键词： similarity measure multi-dimension discrete data relative degree power interconnected system

Electrochemical characteristics of HVOF spray coated layer with WC-27NiCr and WC-10Co4Cr for Al bronze

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中国有色金属学会会刊：英文版 2012年第S3期22卷 753-759页

作者： min-su HAN seung-jun lee min-sung KIM Seok-ki JANG Seong-jong KIM Division of Marine Engineering Mokpo Maritime University

Among the environmentally friendly marine energies,tidal current power plants require low cost because they do not need to construct a large *** power is particularly reliable energy source because the power generation capacity is predictable regardless of weather or *** materials or stainless steel have been used as materials of blades for current power ***,their strength and welding performance generated many problems in field *** alloys with excellent cavitation resistance and corrosion resistance were applied as blade materials to improve the durability of copper *** were coated with WC-27NiCr and WC-10Co4Cr using the high velocity oxy-fuel (HVOF) *** metal spray coating technology has the advantage in terms of the selection of materials for cost effectiveness and environmental effects of corrosion because the properties of the coat layer can be controlled *** with WC-27NiCr and WC-10Co4Cr by HVOF,WC-27NiCr shows better corrosion resistance *** reason for this seems to be that corrosion resistance improves and a stable passive film forms due to the effects of Ni and Cr.

关键词： tidal power copper alloys HVOF coating corrosion resistance

High scored thyroid storm after stomach cancer perforation: A case report

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World Journal of Clinical Cases 2022年第24期10卷 8768-8774页

作者： seung min Baik Yejune Pae Jae-Myeong lee Department of Surgery Ewha Womans University Mokdong HospitalEwha Womans University College of MedicineSeoul 07985South Korea Department of Surgery College of MedicineGraduate School of Korea UniversitySeoul 02841South Korea Department of Acute Care Surgery Korea University Anam HospitalSeoul 02841South Korea

BACKGROUND Thyroid storm is a life-threatening ***,the prevalence of thyroid storm is 1%-2%among patients admitted to the hospital for *** and Wartofsky(1993)introduced a scoring system using precise clinical criteria to identify thyroid *** 17 cases of thyroid storm with a score>70 points have been *** thyroid storms are uncommon,their clinical findings resemble those of *** SUMMARY A 48-year-old man was referred to the emergency room from a local clinic owing to suspicion of gastric ulcer perforation;medications for hypertension,diabetes mellitus,and hyperthyroidism had been suspended 1 year prior to this *** performed an emergency distal gastrectomy with Billroth II anastomosis for gastric cardia cancer perforation,and the patient was referred to the surgical intensive care unit(ICU).On the 2nd d in the ICU,his body temperature(BT)increased to 41.3℃ at 19:00,with the thyroid storm score(90 points)peaking at 18:00(BT;41.2℃,pulse rate;138/min,irritable status).The patient was administered propylthiouracil,intravenous glucocorticoids,acetaminophen,and Lugol’s solution ***,we performed bladder irrigation with cold saline using a Foley catheter and applied a hypothermic blanket to decrease the patient's *** vital signs were stable on the 8th day in the *** Thyroid storms are uncommon,with few reports in the literature;however,their clinical findings resemble those of sepsis and require further *** an untreated thyroid storm results in a high mortality rate,it should be investigated when managing sepsis.

关键词： Thyroid storm Stomach cancer Severity score Sepsis Case report

Dynamic simulation of universal spacer in Dynesys dynamic stabilization system for human vertebra

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中国有色金属学会会刊：英文版 2009年第B9期19卷 238-242页

作者： Sung-min KIM In-Chul YANG seung-Yeol lee Sung-Youn CHO Department of Medical Bio Engineering College of BiosystemDongguk University Research Institute of Biotechnology Dongguk University Department of Advanced Technology Fusion Graduate SchoolKonkuk University Research and Development Center U& I Corporation

The aim of this study is to analyze the simulated behavior of universal spacer in Dynesys dynamic stabilization system inserted in human vertebra. Dynesys, so-called "Dynamic neutralization system for the spine", dynamic stabilization system is a new concept in the surgical treatment of lower back pain recently. Universal spacer used as flexible material is to stabilize the spine and the material property of universal spacer is polycarbonate urethane. Universal spacer may apply different kinematic behaviors at implanted level in vertebra. Spinal range of motion(SROM) of inter-vertebra with installed Dynesys dynamic stabilization system was studied using Adams+LifeMOD as simulation software package. The vertebra model was set up to closely resemble the in-vivo conditions. Inter-vertebra rotations were measured by post processor of Adams and compared with the intact values. SROMs of the flexion, extension, lateral bending, and axial rotation of human virtual models were measured, where three spinal fixation systems such as rigid system, Dynesys system, and fused system were installed. As a result, the value of SROM is decreased in flexion-extension and lateral bending when the spinal fixation system is implanted. The movement of Dynesys system is similar to that of intact model by allowing the movement of lumbar. This means that the Dynesys system is proved to be safe and effective in the treatment of unstable spinal condition.

关键词：稳定系统动态模拟间隔人类脊椎聚碳酸酯聚氨酯运动行为旋转模型