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nhalation of Sevoflurane and Desflurane Can Not Affect QT Interval, Corrected QT, Tp-Te/QT or Tp-Te/JT in Children

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Chinese Medical Journal 2018年第6期131卷 739-740页

作者： Ji-Hyun Lee Eun-hee kim Young-Eun Jang Jin-Tae kim hee-Soo kim Department of Anesthesiology and Pain Medicine Seoul National University Hospital Seoul 03080 Korea

To the Editor： Sevoflurane and desflurane are tile most common general anesthetics used in children. Previous study has shown that these agents can affect the electrocardiogram （ECG） markers,i^i leading to fatal ventricular arrhythmia. The followings were identified as useful indices for predicting and estimating the occurrence of a fatal arrhythmia： the interval between the peak and the end of T wave （Tp-Te） the ratio of the Tp-Te interval to the QT interval （[Tp-Te/QT]）, and the JY interval （JT）, which is measured from the end of the QRS complex to Te.

关键词： QT 孩子心电图代理人 QRS 建筑群心律学习

Design of 1 kbit antifuse one time programmable memory IP using dual program voltage

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Journal of Central South University 2011年第1期18卷 125-132页

作者：金丽妍 JANG Ji-Hye kim Du-Hwi kim Young-hee Department of Electronic Engineering Changwon National University9 Sarim-DongChangwon 641-773Korea

A 1 kbit antifuse one time programmable(OTP) memory IP,which is one of the non-volatile memory IPs,was designed and used for power management integrated circuits(ICs).A conventional antifuse OTP cell using a single positive program voltage(VPP) has a problem when applying a higher voltage than the breakdown voltage of the thin gate oxides and at the same time,securing the reliability of medium voltage(VM) devices that are thick gate transistors.A new antifuse OTP cell using a dual program voltage was proposed to prevent the possibility for failures in a qualification test or the yield *** the newly proposed cell,a stable sensing is secured from the post-program resistances of several ten thousand ohms or below due to the voltage higher than the hard breakdown voltage applied to the terminals of the *** layout size of the designed 1 kbit antifuse OTP memory IP with Dongbu HiTek's 0.18 μm Bipolar-CMOS-DMOS(BCD) process is 567.9 μm×205.135 μm and the post-program resistance of an antifuse is predicted to be several ten thousand ohms.

关键词： one time programmable memory IP antifuse hard breakdown dual program voltage post-program resistance

Xanthogranulomatous cholecystitis managed by laparotomy may go through troublesome clinical course: Reflection of severe inflammation

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Hepatobiliary & Pancreatic Diseases International 2023年第2期22卷 210-212页

作者： hee Ju kim Kwang Yeol Paik Department of Surgery Yeoiudo St.Mary’s HospitalCollege of MedicineThe Catholic University of Korea College of MedicineSeoul 07345Korea

To the Editor: Xanthogranulomatous cholecystitis(XGC) is an uncommon inflammatory disease of the gallbladder, and its incidence is reported to be 1.3%-5.2% [1]. XGC is diagnosed by histopathological examination, characterized by severe inflammatory destruction followed by a granulomatous reaction, marked proliferative fibrosis, and infiltration of inflammatory cells [2].

关键词： granuloma cholecystitis inflammation

Topology optimization of reactive material structures for penetrative projectiles

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Defence Technology（防务技术） 2022年第7期18卷 1205-1218页

作者： Shinyu kim Saekyeol kim Taekyun kim Sangin Choi Tae hee Lee Jung Su Park Sang-Hyun Jung Department of Automotive Engineering Hanyang University222 Wangsimni-roSeongdong-guSeoul04763Republic of Korea The 4th R&D Institute Agency for Defense Development35Yuseong P.O.BoxDaejeon34186Republic of Korea

Recently,reactive materials have been developed for penetrative projectiles to improve impact resistance and energy ***,the design of a reactive material structure,involving shape and size,is challenging because of difficulties such as high non-linearity of impact resistance,manufacturing limitations of reactive materials and high expenses of penetration *** this study,a design optimization methodology for the reactive material structure is developed based on the finite element analysis.A finite element model for penetration analysis is introduced to save the expenses of the *** resistance is assessed through the analysis,and result is calibrated by comparing with experimental *** on the model,topology optimization is introduced to determine shape of the *** design variables and constraints of the optimization are proposed considering the manufacturing limitations,and the optimal shape that can be manufactured by cold spraying is *** on the optimal shape,size optimization is introduced to determine the geometric dimensions of the *** a result,optimal design of the reactive material structure and steel case of the penetrative projectile,which maximizes the impact resistance,is *** the design process proposed in this study,reactive material structures can be designed considering not only mechanical performances but also manufacturing limitations,with reasonable time and cost.

关键词： Reactive material Penetrative projectile Topology optimization Manufacturing constraint Cold gas dynamic spray Additive manufacturing

Simulation of Solid Particle Interactions Including Segregated Lamination by Using MPS Method

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Computer Modeling in Engineering & Sciences 2018年第7期116卷 11-29页

作者： Kyung Sung kim Moo-Hyun kim Hakun Jang hee Chen Cho Tongmyong University BusanRepublic of Korea Texas A&M University College StationTXU.S.A Mississippi State University MSU.S.A

A new MPS(Moving Particle Semi-implicit)method is developed to simulate the behaviors and interactions of multiple fine solid particles as a *** fluid particles are affected by viscosity,so solid particles are affected by *** solid particle dynamics for landslides,dumping,and gravity sorting *** can be difficult to simulate using conventional MPS methods,are modeled in this paper using the developed multi-solid-particle MPS method that benefits from drawing comparisons with the corresponding fluid particle *** present MPS results for dumping solid particles are verified against the corresponding DEM(Discrete Element Method)*** shape and angle of repose for solid particles are shown to be highly dependent on the friction coefficient between *** peculiar phenomenon of segregated lamination(gravity sorting)among grains of different densities has been successfully reproduced using the multi-solid-particle MPS *** quality is found to be dependent on the densities and frictional coefficients of the constituent *** behavior of heterogeneous mixtures of multiple solid and liquid particles are also compared and *** newly developed tool offers a window into the physical dynamics of sedimentology that the broader geoscience community might benefit from.

关键词： Fine solid particle MPS(Moving Particle Semi-implicit) friction force land sliding dumping segregated lamination heterogeneous multiple particles gravity sorting

Technical Note on a Track-pattern-based Model for Predicting Seasonal Tropical Cyclone Activity over the Western North Pacific

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Advances in Atmospheric Sciences 2013年第5期30卷 1260-1274页

作者： Chang-Hoi HO Joo-Hong kim Hyeong-Seog kim Woosuk CHOI Min-hee LEE hee-Dong YOO Tae-Ryong kim Sangwook PARK School of Earth and Environmental Sciences Seoul National University Korea Polar Research Institute Atmospheric and Oceanic Science Princeton University and NOAA/GFDL Forecast Policy Division Korea Meteorological Administration National Typhoon Center Korea Meteorological Administration

Recently, the National Typhoon Center （NTC） at the Korea Meteorological Administration launched a track-pattern-based model that predicts the horizontal distribution of tropical cyclone （TC） track density from June to October. This model is the first approach to target seasonal TC track clusters covering the entire western North Pacific （WNP） basin, and may represent a milestone for seasonal TC forecasting, using a simple statistical method that can be applied at weather operation centers. In this note, we describe the procedure of the track-pattern-based model with brief technical background to provide practical information on the use and operation of the model. The model comprises three major steps. First, long-term data of WNP TC tracks reveal seven climatological track clusters. Second, the TC counts for each cluster are predicted using a hybrid statistical-dynamical method, using the seasonal prediction of large-scale environments. Third, the final forecast map of track density is constructed by merging the spatial probabilities of the seven clusters and applying necessary bias corrections. Although the model is developed to issue the seasonal forecast in mid-May, it can be applied to alternative dates and target seasons following the procedure described in this note. Work continues on establishing an automatic system for this model at the NTC.

关键词： tropical cyclone western North Pacific seasonal forecast track-pattern-based model hybrid statistical-dynamical approach

Accurate Approximation of the Earth Mover's Distance in Linear Time

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Journal of Computer Science & Technology 2014年第1期29卷 142-154页

作者： Min-hee Jang Sang-Wook kim Christos Faloutsos Sunju Park Computer Science Department Carnegie Mellon University ACM IEEE Department of Electronics and Computer Engineering Hanyang University School of Business Yonsei University

Color descriptors are one of the important features used in content-based in, age retrieval. The dominant color descriptor （DCD） represents a few perceptually dominant colors in an image through color quantization. For image retrieval based on DCD, the earth mover＇s distance （EMD） and the optimal color composition distance were proposed to measure the dissimilarity between two images. Although providing good retrieval results, both methods are too time-consuming to be used in a large image database. To solve the problem, we propose a new distance function that calculates an approximate earth mover＇s distance in linear time. To calculate the dissimilarity in linear time, the proposed approach employs the space-filling curve for multidimensional color space. To improve the accuracy, the proposed approach uses multiple curves and adjusts the color positions. As a result, our approach achieves order-of-magnitude time improvement but incurs small errors. We have performed extensive experiments to show the effectiveness and efficiency of the proposed approach. The results reveal that our approach achieves almost the same results with the EMD in linear time.

关键词： earth mover's distance approximation content-based image retrieval

Racism,Equity,and Quality of Education for International Students in South Korean Higher Education Institutes

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Frontiers of Education in China 2016年第3期11卷 338-355页

作者： Jin-hee kim Office of Global Education Development and Cooperation Research Korean Educational Development Institute(KEDI)Seoul 06762South Korea

This study aims to understand equity issues of international students’learning in Korean higher education institutions by engaging with the issue of racism and identifies how international students in Korea reshape their learning trajectory and how we could provide equitable and quality education for international *** a qualitative case study design,six students from different background were interviewed to examine features of perceived institutional racism based on their learning experience in *** findings showed that internationalization has not been fulfilled in terms of engaging with international students although Korean government and higher education institutions have developed relevant policy to attract international *** study indicates that Korean universities need to reconstruct their social,cultural,and institutional systems to embrace equity,diversity and inclusiveness to empower international students’capacity.

关键词： diversity equity higher education multicultural education racism

Comparison of totally laparoscopic total gastrectomy using an endoscopic linear stapler with laparoscopic-assisted total gastrectomy using a circular stapler in patients with gastric cancer: a single-center experience

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World Journal of Gastroenterology 2017年第48期23卷 8553-8561页

作者： Chung Sik Gong Byung Sik kim hee Sung kim department of gastric surgery asan medical centeruniversity of ulsan college of medicine

AIM To evaluate the safety and efficacy of totally laparoscopic total gastrectomy(TLTG) with esophagojejunostomy using a linear stapler compared with laparoscopic-assisted total gastrectomy(LATG) using a circular stapler in gastric cancer *** We retrospectively reviewed 687 patients who underwent laparoscopic total gastrectomy for gastric cancer at a single institution from August 2008 to August 2014. The patients were divided into two groups according to the type of operation: 421 patients underwent TLTG and 266 underwent LATG. Clinicopathologic characteristics and surgical outcomes in the two groups were compared and *** The TLTG group had higher mean ages at the time of operation(57.78 ± 11.20 years and 55.69 ± 11.96 years,P = 0.020) and more histories of abdominal surgery(20.2% and 12.4%,P = 0.008) compared with the LATG group. Surgical outcomes such as intraoperative and postoperative transfusions,combined operations,pain scores and administration of analgesics,and complications were similar between the two groups. However,compared with the LATG group,the TLTG group required a shorter operation time(149 min vs 170 min,P < 0.001),had lower postoperative hematocrit change(3.49% vs 4.04%,P = 0.002),less intraoperative events(3.1% vs 10.2%,P < 0.001),less intraoperative anastomosis events(2.4% vs 7.1%,P = 0.003),faster postoperative recovery such as median time to first flatus(3.30 d vs 3.60 d,P < 0.001),faster median commencement of soft diet(4.30 d vs 4.60 d,P < 0.001) and shorter length of postoperative hospital stay(6.75 d vs 7.02 d,P = 0.005). CONCLUSION The intracorporeal method for reconstruction of esophagojejunostomy using a linear stapler may be considered a feasible procedure comparing with extracorporeal anastomosis using circular stapler because TLTG is simpler and more straightforward than LATG. Therefore,TLTG can be recommended as an appropriate procedure for gastric cancer.

关键词： Totally laparoscopic total gastrectomy Laparoscopic-assisted total gastrectomy Gastric cancer