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Analysis on sports and recreation activity-related eye injuries presenting to the Emergency Department

International Journal of Ophthalmology(English edition) 2016年第10期9卷 1499-1505页

作者： Sungbae Moon hyun Wook Ryoo Jae yun Ahn Jung Bae Park Kang Suk Seo Sang Do Shin Kyoung Jun Song Kang hyun Lee In Sool Yoo Jin Seong Cho hyun Ho Ryu Tae Oh Jeong seok Ran Yeom Young Taek Kim Sung Ok Hong Department of Emergency Medicine School of MedicineKyungpook National University Daegu 700-721 Korea Department of Emergency Medicine College of MedicineSeoul National University Seoul 110-799 Korea Department of Emergency Medicine Wonju College of Medicine Yonsei University Wonju Gangwon-do 220-701Korea Department of Emergency Medicine School of MedicineChungnam National University Daejeon 301-747 Korea Department of Emergency Medicine Gachon University Gil Medical Center Incheon 406-799 Korea Department of Emergency Medicine School of MedicineChonnam National University Gwangju 501-746 Korea Department of Emergency Medicine School of MedicineChonbuk National University Jeonju Jeollabuk-do 561-180Korea Department of Emergency Medicine School of MedicinePusan National University Busan 602-739 Korea Korean Centers for Disease Control & Prevention Cheongiu Chungcheongbuk-do 361-951 Korea

AIM：To investigate the incidence and general characteristics of sports-related eye injuries in patients visiting the Emergency Department. METHODS： A cross-sectional,multi-center,observational *** with an injured eye who visited the Emergency Department at one of nine hospitals in Korea were *** data were prospectively collected between March and September 2010 using a *** injuries that occurred during risky sports were examined by gender and ***,the rate of open globe injuries that occurred with and without protective eyewear was examined for each *** variables were compared using Student＇s t-test and categorical variables were compared using Chi-square ***： A total of 446 patients had sports-related eye ***（10-19 years old） and young adults（20-29 years old） had the most eye *** injuries accounted for 0.2% of Emergency Department *** was the most common cause of sports-related eye injuries,followed by soccer and *** gear was worn by 9.4% of all *** that were 30-39 years of age had the highest rate of protective gear use,followed by patients that were 40-49 years of *** proportion of sports-related eye injuries that were open-globe injuries was highest for soccer and ***： Although injuries were most common in patients below the age of 10 years,these patients had the lowest rate of protective eyewear *** in adults over 40 years of age most commonly occurred during hiking,but the rate of protective eyewear use was *** athletes should be educated on and provided with protective eyewear and policies protective gear use should be *** older adults,eye protection should be encouraged,especially during hiking.

关键词： athletic injuries eye injuries protective devices sports.

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Enrichment by air classification of indium components from In-containing scrap powders scraped by sand-blasting chamber shields of sputter coaters

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Rare Metals 2010年第1期29卷 1-8页

作者： Sungkyu Lee Soo-Bok Jeong Hang-Chul Jung hyun Seon Hong Yongseung yun Sang Mo Woo Plant Engineering Center Institute for Advanced Engineering633-2 Goan-ri Baegam-myeon Cheoin-gu Yongin-si Gyeonggi-do 449-863 Korea Division of Chemical and Materials Engineering Ajou University 5 Wonchon Youngtong Suwon Gyeonggi-do 443-749 Korea Minerals and Materials Processing Division Korea Institute of Geo-science and Mineral Resources (KIGAM) 30 Gajeong-dong Yuseong-gu Daejeon 305-350 Korea Plant Engineering Center Institute for Advanced Engineering633-2 Goan-ri Baegam-myeon Cheoin-gu Yongin-siGyeonggi-do 449-863 Korea 9 Digit Co. Ltd. 20BL-10L Namdong Industrial Complex428-9 Nonhyeon-dong Namdong-gu Incheon 405-848 Korea

Raw scrap powders containing 10 wt.% In were recovered by sand-blasting chamber shields of sputter coaters and used as a sole source of indium components for both sieving and air-classification. Sieving was performed first as a feasibility test, and enrichment of indium component was possible up to 19 wt.% with a mesh size of 635. With this experimental basis, the raw scrap powders were air-classified into 12 lots according to the revolution per minute （r/min） of a single horizontally arranged classifying wheel： 4000, 6000, 8000, 10000, 12000, and 14000 r/rain. The particle cut size varied from 56 to 5 μm with turbo wheel speeds corresponding to 4000 to 14000 r/min, respectively, and enrichment of indium component was possible in fine overflow fractions at all turbo wheel speeds while the indium components were not concentrated in all of the coarse underflow fractions. The grade of the indium components became higher with decreasing particle size of the air-classified scrap powders, with the highest grade obtained in the fine overflow fraction with a turbo wheel speed of 14000 r/min. The amount of indium in the fine overflow fractions varied between 15.9 wt.% and 31.5 wt.%. All in all, the grade or purity of the indium component improved rather significantly from 15.9 wt.% to 31.5 wt.% by air-classification, but this also resulted in overall decrease in recovery rate from 99.33% to 49.64%. Therefore, enrichment and separation of indium should be optimized for maximum recovery and grade of the indium components, which can be used as raw materials in the subsequent electro-refining processes.

关键词： indium air-classification recycling indium tin oxide gas-cyclone dry dispersion

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Characteristics and outcomes of chronic liver disease patients with acute deteriorated liver function by severity of underlying liver disease

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World Journal of Gastroenterology 2016年第14期22卷 3785-3792页

作者： yun Soo Hong Dong hyun Sinn Geum-Youn Gwak Juhee Cho Danbee Kang Yong-Han Paik Moon seok Choi Joon Hyeok Lee Kwang Cheol Koh Seung Woon Paik Department of Medicine Samsung Medical Center Sungkyunkwan University School of Medicine Department of Health Sciences and Technology SAIHST Sungkyunkwan University Deaprtment of Health Behavior and Society and Epidemiology Johns Hopkins Bloomberg School of Public Health

AIM: To analyze characteristics and outcome of patients with acute-on-chronic liver failure(ACLF) according to the severity of underlying liver disease. METHODS: One hundred and sixty-seven adult patients with chronic liver disease and acute deteriorated liver function, defined by jaundice and coagulopathy, were analyzed. Predisposition, type of injury, response, organ failure, and survival were analyzed and compared between patients with non-cirrhosis(type A), cirrhosis(type B) and cirrhosis with previous decompensation(type C).RESULTS: The predisposition was mostly hepatitis B in type A, while it was alcoholic liver disease in typesB and C. Injury was mostly hepatic in type A, but was non-hepatic in type C. Liver failure, defined by CLIF-SOFA, was more frequent in types A and B, and circulatory failure was more frequent in type C. The 30-d overall survival rate(85.3%, 81.1% and 83.7% for types A, B and C, respectively, P = 0.31) and the 30-d transplant-free survival rate(55.9%, 65.5% and 62.5% for types A, B and C, respectively P = 0.33) were not different by ACLF subtype, but 1-year overall survival rate were different(85.3%, 71.7% and 58.7% for types A, B and C, respectively, P = 0.02).CONCLUSION: There were clear differences in predisposition, type of injury, accompanying organ failure and long-term mortality according to spectrum of chronic liver disease, implying classifying subtype according to the severity of underlying liver disease is useful for defining, clarifying and comparing ACLF.

关键词： Acute-on chronic liver failure Classification Injury Organ failure Survival

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Fatal rhabdomyolysis and disseminated intravascular coagulation after total knee arthroplasty under spinal anesthesia:A case report

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World Journal of Clinical Cases 2022年第4期10卷 1349-1356页

作者： Dae Hun yun Eun Ha Suk Wan Ju Eun Hyoung Seo hyun Kang Department of Anesthesiology and Pain Medicine Kwangju Christian HospitalGwangju 61661South Korea

BACKGROUND Rhabdomyolysis develops as a result of skeletal muscle cell collapse from leakage of the intracellular contents into *** severe cases,it can be associated with acute kidney injury and disseminated intravascular coagulation,leading to life threatening *** can occur in the perioperative period from various etiologies but is rarely induced by tourniquet use during orthopedic *** SUMMARY A 77-year-old male underwent right total knee arthroplasty using a tourniquet under spinal *** 24 h after surgery,he was found in a drowsy mental state and manifested features of severe rhabdomyolysis,including fever,hypotension,oliguria,high creatine kinase,myoglobinuria,and disseminated intravascular *** supportive care,cardiac arrest developed abruptly,and the patient was not able to be *** Severe rhabdomyolysis and disseminated intravascular coagulation can develop from surgical tourniquet,requiring prompt,aggressive treatments to save the patient.

关键词： Rhabdomyolysis Total knee arthroplasty Tourniquet Disseminated intravascular coagulation Case report

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Interactions between Transmembrane Helices within Monomers of the Aquaporin AtPIP2;1 Play a Crucial Role in Tetramer Formation

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Molecular Plant 2016年第7期9卷 1004-1017页

作者： yun-Joo Yoo hyun Kyung Lee Wonhee Han Dae Heon Kim Myoung Hui Lee Jouhyun Jeon Dong Wook Lee Junho Lee Yongjik Lee Juhun Lee Jin seok Kim yunje Cho Jin-Kwan Han Inhwan Hwang School of Interdisciplinary Bioscience and Bioengineering Pohang University of Science and Technology Pohang 790-784 Korea Department of Life Sciences Pohang University of Science and Technology Pohang 790-784 Korea Department of Biology Sunchon National University Sunchon 57922 Korea Division of Integrative Biosciences and Biotechnology Pohang University of Science and Technology Pohang 790-784 Korea

Aquaporin （AQP） is a water channel protein found in various subcellular membranes of both prokaryotic and eukaryotic cells. The physiological functions of AQPs have been elucidated in many organisms. However, understanding their biogenesis remains elusive, particularly regarding how they assemble into tetramers. Here, we investigated the amino acid residues involved in the tetramer formation of the Arabidopsis plasma membrane AQP AtPIP2;1 using extensive amino acid substitution mutagenesis. The mutant proteins V41A/ E44A, F51A/L52A, F87A/191A, F92A/193A, V95A/Y96A, and H216A/L217A, harboring alanine substitutions in the transmembrane （TM） helices of AtPIP2;1 polymerized into multiple oligomeric complexes with a vari- able number of subunits greater than four. Moreover, these mutant proteins failed to traffic to the plasma membrane, instead of accumulating in the endoplasmic reticulum （ER）. Structure-based modeling revealed that these residues are largely involved in interactions between TM helices within monomers. These results suggest that inter-TM interactions occurring both within and between monomers play crucial roles in tetramer formation in the AtPIP2;1 complex. Moreover, the assembly of AtPIP2;1 tetramers is critical for their trafficking from the ER to the plasma membrane, as well as water permeability.

关键词： aquaporin AtPIP2 tetramer formation interaction between transmembrane helices

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Sulfur-doped hard carbon hybrid anodes with dual lithium-ion/metal storage bifunctionality for high-energy-density lithium-ion batteries

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Carbon Energy 2023年第1期5卷 71-81页

作者： Sungmin Cho Jong Chan hyun Son Ha Yeonhua Choi Honggyu Seong Jaewon Choi Hyoung-Joon Jin Young Soo yun Program in Environmental and Polymer Engineering Inha UniversityIncheonSouth Korea KU-KIST Graduate School of Converging Science and Technology Korea UniversitySeoulSouth Korea Departmant of Chemistry and Research Institute of Natural Science Gyeongsang National UniversityJinjuSouth Korea Department of Polymer Science and Engineering Inha UniversityIncheonSouth Korea Division of Energy Engineering Kangwon National UniversityGangwon-doSouth Korea

Bifunctional hybrid anodes(BHAs),which are both a high-performance active host material for lithium-ion storage as well as a guiding agent for homogeneous lithium metal nucleation and growth,exhibit significant potential as anodes for next-generation high-energy-density lithium-ion batteries(LIBs).In this study,sulfur-doped hard carbon nanosphere assemblies(S-HCNAs)were prepared through a hydrothermal treatment of a liquid organic precursor,followed by high-temperature thermal annealing with elemental sulfur for application as BHAs for *** a carbonate-based electrolyte containing fluoroethylene carbonate additive,the S-HCNAs showed high lithium-ion storage capacities in sloping as well as plateau voltage sections,good rate capabilities,and stable *** addition,high average Coulombic efficiencies(CEs)of~96.9%were achieved for dual lithium-ion and lithium metal storage *** the LIB full-cell tests with typical NCM811 cathodes,the S-HCNA-based BHAs containing~400 mA h g^(−1) of excess lithium led to high energy and power densities of~500Wh kg^(−1) and~1695Wkg^(−1),respectively,and a stable cycling performance with~100%CEs was achieved.

关键词： hard carbon hybrid anode lithium-ion batteries lithium metal anode lithium metal batteries sulfur-doped carbon

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Transient involuntary movement disorder after spinal anesthesia: A case report

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World Journal of Clinical Cases 2021年第26期9卷 7917-7922页

作者： Giyoung yun Eunsoo Kim Wangseok Do Young-Hoon Jung hyun-Ju Lee Yesul Kim Department of Anesthesia and Pain Medicine Biomedical Research InstitutePusan National University HospitalBusan 49241South Korea Department of Anesthesia and Pain Medicine Pusan National UniversitySchool of MedicineYangsan 50612South Korea

BACKGROUND Spinal anesthesia is commonly used for various *** many complications occur after induction of spinal anesthesia,involuntary movement is an extremely rare *** SUMMARY Herein,we report the case of a 54-year-old healthy male patient who experienced involuntary movements after intrathecal injection of local *** patient had undergone metal implant removal surgery in both the lower extremities;7 h after intrathecal hyperbaric bupivacaine administration,involuntary raising of the left leg began to occur every 2 *** the movement disorder appeared,the patient was conscious and *** other specific symptoms were noted in the physical examination conducted immediately after the involuntary leg raising started;moreover,the patient's motor and sensory assessments were *** symptom gradually *** hours after the symptom first occurred,its frequency decreased to approximately once every three *** days postoperatively,the symptoms had completely disappeared without *** Anesthesiologists should be aware that movement disorders can occur after spinal anesthesia and be able to identify the cause,such as electrolyte imbalance or epilepsy,since immediate action may be required for ***,it is crucial to know that involuntary movement that develop following spinal anesthesia is mostly self-limiting and may not require additional costly examinations.

关键词： Movement disorder Spinal anesthesia Bupivacaine Dexmedetomidine Case report

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Die sinter bonding in air using copper formate preform for formation of full-density bondline

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Transactions of Nonferrous Metals Society of China 2021年第6期31卷 1717-1728页

作者： yun-Ju LEE Jong-hyun LEE Department of Materials Science and Engineering Seoul National University of Science and Technology232 Gongneung-roNowon-guSeoul 139-743Korea

Pressure-assisted sinter bonding was performed in air at 250−350℃ using a preform comprising copper formate particles to form a bondline that is sustainable at high temperatures.H2 and CO generated concurrently by the pyrolysis of copper formate at 210℃ during the sinter bonding removed the native oxide and other oxides grown on bulk Cu finishes,enabling interface ***,Cu produced in situ by the reduction of Cu(II)accelerated the sinter ***,the bonding achieved at 300−350℃ under 5 MPa exhibited sufficient shear strength of 20.0−31.5 MPa after 180−300 min of sinter *** addition,an increase in pressure to 10 MPa resulted in shear strength of 21.9 MPa after an extremely short time of 30 s at 250℃,and a near-full-density bondline was achieved after 300 *** obtained results indicate the promising potential of the preform comprising copper formate particles for high-speed sinter bonding.

关键词： structural materials microstructure mechanical properties copper formate preform sinter bonding pyrolysis

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Reactivation of tuberculosis in hepatocellular carcinoma treated with transcatheter arterial chemoembolization: A report of 3 cases

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World Journal of Radiology 2012年第5期4卷 236-240页

作者： yun Jeung Kim Pyung Gohn Goh Hee seok Moon Eaum seok Lee seok hyun Kim Byung seok Lee Heon Young Lee Division of Hepatology Department of Internal Medicine Chung-Nam National University Hospital 640 Daesa-Dong Jung-Gu Daejeon 301-721 South Korea

Pulmonary tuberculosis is an opportunistic infection that can be reactivated in immunocompromised conditions, for example, in malignancy or after liver transplantation. Hepatocellular carcinoma (HCC) has a high mortality rate because it is frequently diagnosed at an advanced stage. Although surgical resection is the established curative measure for HCC, it is only feasible for earlystage HCC. Transcatheter arterial chemoembolization (TACE) is the most common treatment modality for patients with unresectable HCC. However, repeated TACE sessions and, occasionally, the tumor itself can further impair the reserve hepatic function and immunity. We report 3 recent cases of HCC with reactivation of pulmonary tuberculosis after TACE.

关键词： Hepatocellular carcinoma Reactivation Transcatheter arterial chemoembolization Tuberculosis

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Hybrid Friction Stir Welding of High-carbon Steel

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Journal of Materials Science & Technology 2011年第2期27卷 127-130页

作者： Don-hyun Choi Chang-Yong Lee Byung-Wook Ahn Jung-hyun Choi yun-Mo Yeon Keun Song Seung-Gab Hong Won-Bae Lee Ki-Bong Kang Seung-Boo Jung School of Advanced Materials Science and Engineering Sungkyunkwan University 300 Cheoncheon-dongJangan-guSuwonGyeonggi-do 440-746South Korea Department of Mechanical Engineering Korea Advanced Institute of Science and Technology 335 GwahangnoYuseong-guDaejeon 305-701South Korea Department of Advanced Materials Application Suwon Science College 9-10Botong-liJeongnam-myeonHwasungGyeonggi-do 445-742South Korea Technical Research Lab POSCO Corp.Goedong-dongNam-guPohangGyeongbuk790-785South Korea

A high-carbon steel joint,SK5（0.84 wt% C）,was successfully welded by friction stir welding（FSW）,both without and with a gas torch,in order to control the cooling rate during *** welding,the weld zone comprised gray and black regions,corresponding to microstructural variation：a martensite structure and a duplex structure of ferrite and cementite,*** volume fraction of the martensite structure and the Vickers hardness in the welds were decreased with the using of the gas torch,which was related with the lower cooling rate.

关键词： Friction stir welding High-carbon steel Transformation Martensite

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