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Iridium‑Cluster‑Implanted Ruthenium Phosphide Electrocatalyst for Hydrogen Evolution Reaction

第六次全国大肠癌会议暨中日韩大肠癌会议

作者： Seok-Hwan lee Tae-Young Kim Choong Yoon Hoong-Zae Joo Yoon-Wha Kim Kee-hyung lee M.D. Department of Surgery and Pathology Kyung-Hee University Hospital Seoul Korea M.D. Department of Surgery and Pathology Kyung-Hee University Hospital Seoul Korea M.D. Department of Surgery and Pathology Kyung-Hee University Hospital Seoul Korea M.D. Department of Surgery and Pathology Kyung-Hee University Hospital Seoul Korea M.D. Department of Surgery and Pathology Kyung-Hee University Hospital Seoul Korea M.D. Department of Surgery and Pathology Kyung-Hee University Hospital Seoul Korea

＜正＞Purpose : One of the most important prognostic factors in colorectal cancer is lymph node metastasis, which predicts a reduced survival time. Although lymph node metastases were not detected by a conventional hematoxylin-eosin stain technique, 20 to 30 percent of patients fail long-term survival on account of a local or systemic recurrence. Recurrent disease in these patients is believed to develop from occult tumor in lymph nodes. We have conducted an immunohistochemical study with two different antibodies against cytokeratin to identify occult micrometastases in lymph nodes which were diagnosed as tumor negative by conventional histopathology.

关键词： Colorectal cancer Immunohistochemical study Lymph node metastases Occult micrometastases

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Advanced Fiber Materials 2024年第1期6卷 158-169页

作者： Kyounghoon Jung Dwi Sakti Aldianto Pratama Andi Haryanto Jin Il Jang hyung Min Kim Jae‑Chan Kim Chan Woo lee Dong‑Wan Kim School of Civil Environmentaland Architectural EngineeringKorea UniversitySeoul 02841Republic of Korea Department of Chemistry Kookmin UniversitySeoul 02707Republic of Korea Materials Science and Chemical Engineering Center Institute for Advanced EngineeringYongin‑si 17180Republic of Korea

Ruthenium phosphide is a promising catalyst for hydrogen evolution due to its cost-effectiveness compared to *** it faces the challenge of having a high binding energy for hydrogen *** this study,we demonstrate that the incorporation of iridium in ruthenium phosphides lowers the binding energy of hydrogen intermediates,thereby controlling the overpotential and Tafel slope of hydrogen *** the Ir content was doped at 3 at.%,the catalyst achieved an overpotential of 33 mV and a Tafel slope of 33 mV dec^(-1) under acidic conditions,which are similar to those of the benchmark Pt/C *** situ Raman spectroscopy and density functional theory(DFT)calculations suggest that the enhanced catalytic activity originates from the near-neutral Gibbs free energy of hydrogen adsorption on the hollow site of the iridium cluster implanted onto ruthenium phosphide.

关键词： Water electrolysis Ruthenium phosphide Iridium substitution Electronic structure Hydrogen evolution reaction Electrospinning

Estimation of Curling Sheet Friction Factor by Pixelization

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Estimation of Curling Sheet Friction Factor by Pixelization

Efficiency Improvement of 590 nm AIGalnP Light Emitting Diode with a Reflective Top Electrode

第37届中国控制会议

作者： Ju-hyung lee Hyan-Soo Bae Jae-Hyeon Gwon Nan-Hee Kim Kamaloba Albina Suk-Gyu lee Yeungnam University

This study estimates the coefficient of friction on the actual curling sheet with a pebble, without having to mount any devices on it. Existing studies have equipped the ice sheet with external devices to estimate the coefficient of friction. Another paper estimated friction coefficients, assuming that the pebble did not exist, because it was very difficult to estimate the coefficient of friction in the space where the pebble was located. In this study, it is possible to estimate the coefficient of friction of the actual curling sheet without fitting an external device onto the curling sheet. In addition, the friction coefficient estimation method attempted using image processing techniques may be most similar to the actual friction coefficient, reducing the outside influence, compared to the existing papers. It will also be an estimation method using image processing techniques, which form the basis of various friction coefficient screening methods.

关键词： curling friction factor pixelization image processing

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Journal of Physical Science and Application 2014年第2期4卷 115-118页

作者： hyung Joo lee Young Dae Cho Young Jin Kim Choong Hun lee Jae Hoon Kim Hwa Sub Oh Su Chang Ahn CF Technology Division AUK Corporation lksan 570-210 Republic of Korea Division of Microelectronics and Display Technology Wonkwang University Iksan 570-749 Republic of Korea LED Team Korean Photonic Technology Institute (KOPTI) Gwangfu 500-779 Republic of Korea

In this work, enhancement of the light extraction efficiency of a 590 nm AIGaInP light-emitting diodes （LED） with a reflective top electrode （RTE） was investigated. A distributed Bragg reflector （DBR）, consisting of AIAs/AIGaAs pairs, grown on an AlGaInP structure was used as a reflector for a reflective top electrode. It was found that a higher output power was observed from the AIGalnP LED with a RTE than from a conventional one. In addition, it was noted that the improvement in the output power depends strongly on the reflectivity of the reflector and that it exhibits a more effective performance with low injection currents. The increase in the optical output power was attributed to the enhanced extraction efficiency caused by a reduction of light absorbed from the emission region to top electrode through the RTE.

关键词： AlGaInP reflective top electrode (RTE) light-emitting diode (LED)

LTCC SoP RF Transceiver Module for 60 GHz Wireless Gigabit Ethernet Communication System

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通讯和计算机（中英文版） 2010年第6期7卷 63-70页

作者： Azzemi Ariffin Suhandi Bujang Mohd Fadzil Amiruddin Salizul Jaafarl Noor Aisyah Mohd. Akib Young chul lee System Technology Program Telekom Research ＆ Development Sdn. Bhd. TMR＆D Innovation Centre Cyberjaya 63000 Malaysia Division of Marine Electronics and Communication Engineering Mokpo National Maritime University （MMU） Jeonnam 530-729Korea

New-onset diabetes after adult liver transplantation in the Korean Organ Transplantation Registry (KOTRY) study

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Hepatobiliary Surgery and Nutrition 2020年第4期9卷 425-439页

作者： Jong Man Kim Shin Hwang Kwang-Woong lee Jae-Geun lee Je Ho Ryu Bong-Wan Kim Dong Lak Choi Young Kyoung You Dong-Sik Kim Yang Won Nah Koo Jeong Kang Jai Young Cho Geun Hong In Seok Choi Hee chul Yu Dongho Choi Myoung Soo Kim 无 Department of Surgery Samsung Medical CenterSungkyunkwan University School of MedicineSeoulSouth Korea Department of Surgery Asan Medical CenterCollege of Medicine University of UlsanSouth Korea Department of Surgery Seoul National University College of MedicineSeoulSouth Korea Department of Surgery Yonsei University College of MedicineSeoulSouth Korea Department of Surgery Pusan National University College of MedicineBusanSouth Korea Department of Liver Transplantation and Hepatobiliary Surgery Ajou University School of MedicineSuwonSouth Korea Department of Surgery Catholic University of Daegu College of MedicineDaeguSouth Korea Department of Surgery College of MedicineCatholic University of KoreaSeoulSouth Korea Division of HBP Surgery and Liver Transplantation Department of SurgeryKorea University College of MedicineSeoulSouth Korea Department of Surgery Ulsan University HospitalUniversity of Ulsan College of MedicineUlsanSouth Korea Department of Surgery Keimyung University School of MedicineDaeguSouth Korea Department of Surgery Seoul National University Bundang HospitalSeoul National University College of MedicineSungnamSouth Korea Department of Surgery Ewha Woman’s University School of MedicineSeoulSouth Korea Department of Surgery Konyang University HospitalDaejonSouth Korea Department of Surgery Chonbuk National University School of MedicineJeonjuSouth Korea Department of Surgery Hanyang University College of MedicineSeoulSouth Korea The Korean Organ Transplantation Registry Study Group

Background:New-onset diabetes after transplantation(NODAT)is a serious complication following liver transplantation(LT).The present study aimed to investigate the incidence of and risk factors for NODAT using the Korean Organ Transplantation Registry(KOTRY)***:Patients with history of pediatric transplantation(age≤18 years),re-transplantation,multi-organ transplantation,or pre-existing diabetes mellitus were excluded.A total of 1,919 non-diabetic adult patients who underwent a primary LT between May 2014 and December 2017 were *** factors were identified using Cox regression ***:NODAT occurred in 19.7%(n=377)of adult liver transplant *** analysis showed steroid use,increased age,and high body mass index(BMI)in recipients,and implantation of a left-side liver graft was closely associated with NODAT in adult *** living donor liver transplant(LDLT)patients(n=1,473),open donor hepatectomy in the living donors,steroid use,small for size liver graft(graft to recipient weight ratio≤0.8),increased age,and high BMI in the recipient were predictive factors for *** use of antimetabolite and basiliximab induction reduced the incidence of NODAT in adult LT and in adult ***:Basiliximab induction,early steroid withdrawal,and antimetabolite therapy may prevent NODAT after adult *** BMI or advanced age in liver recipients,open donor hepatectomy in living donors,and small size liver graft can predict the occurrence of NODAT after adult LT or LDLT.

关键词： Diabetes living donors immunosuppression Asia

碳化硅颗粒增强的铝基复合材料界面微结构研究

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电子显微学报 2002年第1期21卷 52-55页

作者：施忠良刘俊友顾明元刘国权 lee Jae-chul 上海交通大学金属基复合材料国家重点实验室上海200030 北京科技大学材料科学与工程学院北京100083 Division of Materials Science and Engineering

通过X射线衍射、场发射扫描电镜和透射电镜观察并研究了SiC颗粒增强的铝基复合材料界面组织组成、特征及其反应产物的微观形貌 ,直观给出了SiC颗粒与铝反应生成的Al4 C3立体形貌为六方片状结构 ,发现在SiC颗粒和铝合金基体的界面处为偏... 详细信息

通过X射线衍射、场发射扫描电镜和透射电镜观察并研究了SiC颗粒增强的铝基复合材料界面组织组成、特征及其反应产物的微观形貌 ,直观给出了SiC颗粒与铝反应生成的Al4 C3立体形貌为六方片状结构 ,发现在SiC颗粒和铝合金基体的界面处为偏析形成的层片状共晶结构θ CuAl2 和硅相 ,表明该产物是最后凝固的多元共晶组织 ,即最后凝固部位是在SiC颗粒和基体铝合金的界面处。上述结果有助于了解。

关键词：透射电镜界面铝基复合材料碳化硅颗粒增强显微结构

Assessment of scoring systems for acute-on-chronic liver failure at predicting short-term mortality in patients with alcoholic hepatitis

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World Journal of Gastroenterology 2016年第41期22卷 9205-9213页

作者： Hee Yeon Kim Chang Wook Kim Tae Yeob Kim Do Seon Song Dong Hyun Sinn Eileen L Yoon Young Kul Jung Ki Tae Suk Sang Soo lee Chang Hyeong lee Tae Hun Kim Jeong Han Kim hyung Joon Yim Sung Eun Kim Soon Koo Baik Byung Seok lee Jae Young Jang Young Seok Kim Sang Gyune Kim Jin Mo Yang Joo Hyun Sohn Heon Ju lee Seung Ha Park Eun Hee Choi Dong Joon Kim Korean Acute-on-Chronic Liver Failure Study Group Department of Internal Medicine College of MedicineThe Catholic University of KoreaSeoul 06591South Kerea Institute of Medical Science Hanyang UniversitySeoul 04763South Kerea Department of Internal Medicine Samsung Medical CenterSeoul 06351South Kerea Department of Internal Medicine Inje University Sanggye Paik HospitalSeoul 01757South Kerea Department of Internal Medicine Korea University Ansan HospitalAnsan 15355South Korea Department of Internal Medicine Hallym University Chuncheon Sacred Heart HospitalChuncheon 24253South Kerea Department of Internal Medicine Gyeongsang National University HospitalJinju 52727South Kerea Department of Internal Medicine Catholic University of Daegu School of MedicineDaegu 42472South Kerea Department of Internal Medicine Ewha Womans University School of MedicineSeoul 07985South Kerea Department of Internal Medicine Konkuk University School of MedicineSeoul 05030South Kerea Department of Internal Medicine Hallym University Sacred Heart HospitalAnyang 14068South Kerea Department of Internal Medicine Yonsei University Wonju College of MedicineWonju 26426South Kerea Department of Internal Medicine Chungnam National UniversitySchool of MedicineDaejeon 35015South Kerea Department of Internal Medicine Soonchunhyang University College of MedicineSeoul 04401South Kerea Department of Internal Medicine Soonchunhyang University Bucheon HospitalBucheon 14584South Kerea Department of Internal Medicine Hanyang University Guri HospitalGuri 11923South Kerea Department of Internal Medicine Yeungnam University College of MedicineDaegu 42415South Kerea Department of Internal Medicine Inje University Haeundae Paik-HospitalInje University College of MedicineBusan 48108South Kerea Institute of Lifestyle Medicine Yonsei University Wonju College of MedicineWonju 26426South Kerea 不详

AIM To assess the performance of proposed scores specific for acute-on-chronic liver failure in predicting shortterm mortality among patients with alcoholic *** We retrospectively collected data from 264 patients with clinically diagnosed alcoholic hepatitis from January to December 2013 at 21 academic hospitals in Korea. The performance for predicting short-term mortality was calculated for Chronic Liver FailureSequential Organ Failure Assessment(CLIF-SOFA), CLIF Consortium Organ Failure score(CLIF-C OFs), Maddrey'sdiscriminant function(DF), age, bilirubin, international normalized ratio and creatinine score(ABIC), Glasgow Alcoholic Hepatitis Score(GAHS), model for end-stage liver disease(MELD), and *** Of 264 patients, 32(12%) patients died within 28 d. The area under receiver operating characteristic curve of CLIF-SOFA, CLIF-C OFs, DF, ABIC, GAHS, MELD, and MELD-Na was 0.86(0.81-0.90), 0.89(0.84-0.92), 0.79(0.74-0.84), 0.78(0.72-0.83), 0.81(0.76-0.86), 0.83(0.78-0.88), and 0.83(0.78-0.88), respectively, for 28-d mortality. The performance of CLIF-SOFA had no statistically significant differences for 28-d mortality. The performance of CLIF-C OFs was superior to that of DF, ABIC, and GAHS, while comparable to that of MELD and MELD-Na in predicting 28-d mortality. A CLIF-SOFA score of 8 had 78.1% sensitivity and 79.7% specificity, and CLIF-C OFs of 10 had 68.8% sensitivity and 91.4% specificity for predicting 28-d *** CLIF-SOFA and CLIF-C OF scores performed well, with comparable predictive ability for short-term mortality compared to the commonly used scoring systems in patients with alcoholic hepatitis.

关键词： Acute-on-chronic liver failure Alcoholic hepatitis Mortality Prognosis Scoring system

束缚系统优化设计中带有老年人体模型的前碰Sled模拟(英文)

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汽车安全与节能学报 2010年第4期1卷 270-274页

作者： CHOI hyung Yun lee Inhyeok Hongik Univ Mechanical System Design Engineering Department Hankook ESI

开发了一种用于约束系统(即气囊和安全带)优化设计的前碰Sled数值模型。该模型包括驾驶员侧边座舱和老年人体模型。最佳化过程的目标函数是,在保持其他伤害风险(例如,头部伤害标准(HIC)和股骨负荷)低于阈值的前提下,使得胸部伤害的风险... 详细信息

开发了一种用于约束系统(即气囊和安全带)优化设计的前碰Sled数值模型。该模型包括驾驶员侧边座舱和老年人体模型。最佳化过程的目标函数是,在保持其他伤害风险(例如,头部伤害标准(HIC)和股骨负荷)低于阈值的前提下,使得胸部伤害的风险为最小。束缚系统的设计变量有3种:安全带负载极限的峰值受力、安全带预张或气囊的展开时间、和喷气孔的直径。结果表明:减少在汽车发生前碰时胸部伤害的风险,相比于年轻乘员,老年驾驶员需要更低的安全带预张或气囊的限制负载力。

关键词：汽车安全前碰撞束缚系统胸部伤害风险老年驾驶员