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Endoscopic submucosal dissection for undifferentiated-type early gastric cancer: Do we have enough data to support this?

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World Journal of Gastroenterology 2014年第14期20卷 3938-3949页

作者： choong nam shim Sang Kil Lee Department of Internal Medicine Institute of GastroenterologyYonsei University College of Medicine

Although endoscopic submucosal dissection (ESD) is now accepted for treatment of early gastric cancers (EGC) with negligible risk of lymph node (LN) metastasis, ESD for intramucosal undifferentiated type EGC without ulceration and with diameter ≤ 2 cm is regarded as an investigational treatment according to the Japanese gastric cancer treatment guidelines. This consideration was largely based on the analysis of surgically resected EGCs that contained undifferentiated type EGCs; however, results from several institutes showed some discrepancies in sample size and incidence of LN metastasis. Recently, some reports about the safety and efficacy of ESD for undifferentiated type EGC meeting the expanded criteria have been published. Nonetheless, only limited data are available regarding long-term outcomes of ESD for EGC with undifferentiated histology so far. At the same time, endoscopists cannot ignore the patients’ desire to guarantee quality of life after the relatively non-invasive endoscopic treatment when compared to conventional surgery. To satisfy the needs of patients and provide solid evidence to support ESD for undifferentiated EGC, we need more delicate tools to predict undetected LN metastasis and more data that can reveal predictive factors for LN metastasis.

关键词： Early gastric cancer Endoscopic submucosal dissection Undifferentiated histology Indications

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Impact of tumor location on clinical outcomes of gastric endoscopic submucosal dissection

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World Journal of Gastroenterology 2014年第26期20卷 8631-8637页

作者： Ji Young Yoon choong nam shim Sook Hee Chung Wan Park Hyunsoo Chung Hyuk Lee Sung Kwan Shin Sang Kil Lee Yong Chan Lee Jun Chul Park Department of Internal Medicine Institute of GastroenterologyYonsei University College of Medicine

AIM: To determine whether there is a correlation between the location of the lesion and endoscopic submucosal dissection (ESD) outcome.

关键词： Endoscopic submucosal dissection Gastric neoplasm Location Complication Outcomes

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Use of a Digital Image Correlation Technique for Measuring the Material Properties of Beetle Wing

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Journal of Bionic Engineering 2009年第3期6卷 224-231页

作者： Tailie Jin nam Seo Goo Sung-choong Woo Hoon Cheol Park Biomemitics and Intelligent Microsystem Laboratory Department of Advanced Technology FusionKonkuk University

Beetle wings are very specialized flight organs consisting of the veins and *** it is necessary from a bionic view to investigate the material properties of a beetle wing *** the present study,we have used a Digital Image Correlation (DIC) technique to measure the elastic modulus of a beetle wing *** were prepared by carefully cutting a beetle hind wing into 3.0 mm by 7.0 mm segments (the gage length was 5 mm).We used a scanning electron microscope for a precise measurement of the thickness of the beetle wing *** specimen was attached to a designed fixture to induce a uniform displacement by means of a *** used an ARAMISTM system based on the digital image correlation technique to measure the corresponding displacement of a *** thickness of the beetle wing varied at different points of the *** elastic modulus differed in relation to the membrane arrangement showing a structural anisotropy;the elastic modulus in the chordwise direction is approximately 2.65 GPa,which is three times larger than the elastic modulus in the spanwise direction of 0.84 *** a result,the digital image correlation-based ARAMIS system was suc- cessfully used to measure the elastic modulus of a beetle *** addition to membrane's elastic modulus,we considered the Poisson's ratio of the membrane and measured the elastic modulus of a vein using an Instron universal tensile *** result reveals the Poisson's ratio is nearly zero and the elastic modulus of a vein is about 11 GPa.

关键词： digital image correlation technique beetle wing elastic modulus Poisson's ratio vein membrane

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Multichip on Aluminum Metal Plate Technology for High Power LED Packaging

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Journal of Measurement Science and Instrumentation 2010年第3期1卷 297-299页

作者： choong-mo nam Mi-hee JI Department of Electronics Engineering Korea Polytechnic UniversitySiheung 429-793Korea

Multichip on Ahnnintnn Metal Plate（MOAMP） technology with simple structure and low thermal resistance is developed for effective heat reratrval of Light Emitting Diode（LED） p-n junction and LED lighting module to have high reliability. The thermal resistance of LED modules was numerical and experimental. Thermal resistance from the jtnction to aluminten metal plate, considering input power of IFD module using MOAMP technology, is 3.02 K/W, 3.23 K/W for the measured and calculated, respectively. We expect that the reported MOAMP technology with low thermal resistance will be a promising solution for high power LED fighting modules.

关键词： - thermal resistance Light Emitting Diode (IFO) aluminum metal plate IHOAMP

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Lymphovascular invasion in more than one-quarter of small rectal neuroendocrine tumors

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World Journal of Gastroenterology 2016年第42期22卷 9400-9410页

作者： Mi Jung Kwon Ho Suk Kang Jae Seung Soh Hyun Lim Jong Hyeok Kim choong Kee Park Hye-Rim Park Eun Sook nam Department of Pathology Hallym University Sacred Heart Hospital Department of Internal Medicine Hallym University Sacred Heart Hospital Department of Pathology Kangdong Sacred Heart Hospital Hallym University College of Medicine

AIM To identify the frequency, clinicopathological risk factors, and prognostic significance of lymphovascular invasion(LVI) in endoscopically resected small rectal neuroendocrine tumors(NETs).METHODS Between June 2005 and December 2015, 104 cases of endoscopically resected small(≤ 1 cm) rectal NET specimens at Hallym University Sacred Heart Hospital in Korea were retrospectively evaluated. We compared the detected rate of LVI in small rectal NET specimens by two methods: hematoxylin and eosin(H&E) and ancillary immunohistochemical staining(D2-40 and Elastica van Gieson); in addition, LVI detection ratedifference between endoscopic procedures were also evaluated. Patient characteristics, prognosis and endoscopic resection results were reviewed by medical *** We observed LVI rates of 25.0% and 27.9% through H&E and ancillary immunohistochemical staining. The concordance rate between H&E and ancillary studies was 81.7% for detection of LVI, which showed statistically strong agreement between two methods(κ = 0.531, P 5 mm, P = 0.007), tumor grade 2(P = 0.006). Among those factors, tumor grade 2 was the only independent predictive factor for the presence of LVI(HR = 4.195, 95%CI: 1.321-12.692, P = 0.015). No recurrence was observed over 28.8 mo regardless of the presence of *** LVI may be present in a high percentage of small rectal NETs, which may not be associated with short-term prognosis.

关键词： Rectum Neuroendocrine tumor Lymphatic Immunohistochemistry Prognosis

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FEA of Particle-Reinforced Dental Composite with Interphase Damage

FEA of Particle-Reinforced Dental Composite with Interphase ...

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The Eighth International Conference on Fundamentals of Fracture（ICFF VIII）

作者： Young Tae Cho choong Ho Lee In nam Hwang Dept.of Manufacturing & Design Eng. Jeonju Univ.Wansan-GuJeonjuKorea 560-759 Dept.of Conservative dentistry School of DentistryChonnam National Univ.GwangjuKorea 501-757

＜正＞This paper deals with elastic stress distributions and load carrying capacity of intact and cracked or debonded ellipsoidal inhomogeneities in dental *** element analysis has been carried out on intact and damaged ellipsoidal inhomogeneities in an infinite body under uniaxial tension or *** the intact inhomogeneity,as well known as Eshelby’s（1957）

关键词： Particle-Reinforced Dental Composite Damage Load Carrying Capacity FEA

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Alterations of cardiac functions after chordae tendineae rupture using echocardiogram in dogs.

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畜牧与兽医 2012年第S2期44卷 52-53页

作者： Sehoon Kim Jooho Kim Jury Kim Dongbin Lee choong-Sup Kim Hanjin Kim Kwan Kim Jaehyun Bae Yong-Hwan Kwon Hye-Yeon Cheong Jimo Jeong Yechan Jung Hae-Beom Lee Kichang Lee nam-Soo Kim Min-Su Kim The Institutional Animal Care and Use Committee (IACUC)(korea)

Chordae tendineae rupture(CTR),mostly occurred posterior,was identified in 16.1%of dogs with mitral valve disease(MVD).We form a hypothesis that selective transect of posterior chordae tendineae(CT)would alter the cardiac functions in *** objective of this study was to observe alterations of cardiac function to make a canine MR model from CTR.1 Materials and methods Nine healthy beagles weighed were *** had normal heart function from echocardiography.A left thoracotomy was performed through the 6thor 7thintercostal space.A specific hook was inserted into the left ventricle(LV)

关键词： rupture alterations mitral inserted hook canine valve ventricle mostly hypothesis

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An Experimental Study on Bending Analysis of the 10kW-class Rotor Blade with Fiber Reinforced Plastics

An Experimental Study on Bending Analysis of the 10kW-class ...

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The 3～(rd) World Wind Energy Conference & Renewable Energy Exhibition the 2nd Wind Power Asia

作者： choong-Yul Son Jae-Kwon Choi Naval Architecture ＆ Ocean Engineering In-ha University Yong-Hyun Dong Nam-gu Incheon metro city South Korea Naval Architecture ＆ Ocean Engineering In-ha University Yong-Hyun Dong Nam-gu Incheon metro city South Korea

In these days, large-scale wind turbines are being made of the Glass Fiber Reinforced Plastic (hereinafter F. R. P). Some reinforcement stiffeners such as carbon fiber and polyamide (Kevlar) are not

关键词： Rotor Blade Fiber Reinforced Plastic (F.R.P.) Finite Element Method (F.E.M) Aerodynamic Loads

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