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Sung‑Eun Kim,Jin-Gyu Lee,In-Young Choi,Ha-Eun Kim,Hong-Sub Lee 한국세라믹학회 2020 한국세라믹학회지 Vol.57 No.1
Sneak current is one of the main bottlenecks for dense crossbar array resistive random access memory. This study reports highly non-linear resistive switching characteristic from Ce0.9Y0.1O2/ TiO2 bi-layer (1S/1R device) structure, fabricated by photochemical metal-organic deposition, as a solution for sneak current issue. Ce0.9Y0.1O2 material, possessing oxygen vacancies, was used as a potential barrier as well as oxygen reservoir which rectified the current of low resistance state without an electrical breakdown in 1S/1R device. TiO2 was adopted for resistive switching property, and TiO2 layer having mixed phase (anatase and brookite) showed typical diode switching behavior. The photochemical reaction of photochemical metal-organic deposition process and phase formation were monitored and established using by Fourier-transform infrared spectroscopy and X-ray diffraction, respectively. The 1S/1R device showed highly non-linear resistive switching characteristic, large on/ off ratio of above three orders of magnitude with low operating current.
이상규(Lee, Sang-gyu) 동아인문학회 2017 동아인문학 Vol.39 No.-
글은 이상정의 생애와 업적을 살펴보고, 그가 남긴 유고집의 의미와 사료적 가치를 조망하는 것을 목적으로 한다. 자료의 한계로 인해 그 전모 전체를 밝히기에는 어려움이 있지만 본 논의의 의미는 다음과 같이 정리할 수 있다. 이상정의 조국 독립군으로서의 활동을 살펴볼 수 있었고, 우리나라 최초의 여유 비행사였던 권기옥의 독립투쟁사를 밝힐 수 있었다. 뿐만 아니라 동북아시아 특히 한・중의 과거 관계를 알 수 있는 역사 사료로서의 가치를 발견할 수 있었다. 우리나라 고대사의 흐름을 제대로 이해하기 위해서는 동북 지역사에 대한 새로운 인식이 필요하다. 책의 내용을 보면 중국 동북삼성뿐만 아니라 곳곳의 유적지를 답사하며 고적과 유물의 역사와 유래에 대한 글을 남기고 있기 때문이다. 또한 『개벽(開闢)』 잡지 등에 그가 남긴 여러 편의 시조를 살펴보면 문예가로서의 면모도 발견할 수 있는데, 유고집에 남긴 이러한 글들은 문예집으로서도 가치를 지닌다고 할 수 있다. The purpose of this paper is to examine the life and achievements of General Lee Sang-jeong and identify the meaning and historical value of posthumous collection he left. Although there are difficulties in clarifying the full account due to the limitations of data, the significance of this paper can be summarized as follows. It could examine the activities of General Lee Sang-jeong as an army for national independence, and clarify the struggles for independence by Kwon Ki-ok, the first female pilot in Korea. Moreover, this paper could discover values as a historical record to know the past relationship in Northeast Asia, especially Korea and China. It is necessary to have a new recognition of the regional history of Northeast Asia to properly understand the flow of the ancient Korean history. By exploring historical sites in the 3 provinces of Northeast China as well as various places, the book leaves many writings about the history and origins of historical remains and sites, whose quality surpasses that of the writings by renowned, excellent historical scholars. Also, several sijo (Korean traditional three-verse Korean poems) in magazines such as ‘Gaebyeok’ show General Lee Sang-jeong’s talent as a literary artist, indicating the significant value of the pieces he left in his posthumous collection as a literary collection.
( Hee Yeon Kim ),( Jong Young Choi ),( Dong Goo Kim ),( Myoung Soo Kim ),( Soon Il Kim ),( Shin Hwang ),( Sung Gyu Lee ),( Kwang Woong Lee ),( Kyung Suk Suh ),( Young Seok Han ),( Dong Lak Choi ),( Se 대한간학회 2012 춘·추계 학술대회 (KASL) Vol.2012 No.-
Background: The outcome of hepatitis B virus (HBV) infection after liver transplantation (LT) was improved by hepatitis B immunoglobulin (HBIG) and nucles(t)ide analogue (NUA). However, HBV recurrence after LT is critical because the recurrence is occasionally accompanied by a progressive destruction of graft and poor survival. The aims of this study were to investigate the significance HBV recurrence and identity factors associated with HBV recurrence. Methods: From October 1999 to February 2011, a total of 2684 consecutive LT recipients who underwent HBV-associated LT were retrospectively enrolled from 7 transplantation centers in Korea. Results: Prophylaxis regimens were HBIG monotherapy (67.7%) or a combination of HBIG with NUA (22.3%). The recurrence rate of HBV was 6.1% (164 recipients) during mean follow-up duration of 10.9 years. The median time from transplantation to recurrence was 2.1 years (0.1-7.9 years). Of the 1,071 patients with hepatocellular carcinoma (HCC) prior to LT, 155 patients (14.5%) had HCC recurrence after transplantation, and 48 patients (31.0%) had HBV recurrence. Of the 48 patients with recurrence of both HBV and HCC, 25 patients (52.1%) experienced HBV recurrence after HCC recurrence. In the multivariate analysis, pretransplant HCC, pretransplant HBV DNA above 5.5 log copies/mL was independent clinical factors influencing HBV recurrence after LT. The mortality rate among the recipients with HBV recurrence was 34.1% (56 recipients). Mean overall survival was 6.4 years in the HBV-recurrence group and 9.9 years in the HBV-nonrecurrence group (p<0.001). HBV recurrence was not an independent prognostic factor for overall survival. HCC recurrence was the most important factor for overall survival. Conclusions: The overall outcome of LT in HBV-related liver disease was excellent with the current prophylaxis regimen Choon Hyuck David Kwon,8 Suk-Koo Lee8 Pretransplant HBV DNA and HCC were important factors for HBV recurrence. HBV recurrence after LT did not significantly influence on the overall survival without combining of HCC recurrence.
Afatinib-Induced Acute Fatal Pneumonitis in Metastatic Lung Adenocarcinoma
Sang Hoon Yoo,Jin Ah Ryu,Seo Ree Kim,Su Yun Oh,Gu Sung Jung,Dong Jae Lee,Bong Gyu Kwak,Yu Hyun Nam,Kyung Hyun Kim,Young Jun Yang 대한가정의학회 2016 Korean Journal of Family Medicine Vol.37 No.6
Afatinib is an oral tyrosine kinase inhibitor (TKI) that inhibit Endothelial Growth Factor Receptor (EGFR), Human Epidermal Growth Factor Receptor 2 (HER2), and HER4. The common side effects of EGFR TKI are rash, acne, di-arrhea, stomatitis, pruritus, nausea, and loss of appetite. Drug induced pneumonitis is the less common adverse ef-fects of EGFR TKI. Afatinib, 2nd generation EGFR TKI is anticipated to overcome drug resistance from 1st genera-tion EGFR TKI according to preclinical study, and several studies are being conducted to compare clinical efficacy between 1st and 2nd EGFR TKI. Several cases of rug induced acute fatal pneumonitis were reported after use of er-lotinib or gefitinib. However, a case of acute fatal pneumonitis associated with afatinib was note reported except drug induced pneumonitis in other clinical study. Here, we present a cases of acute severe pneumonitis related with afatinib in metastatic lung adenocarcinoma with literature review.
( Sang Hyun Kim ),( Han Ah Lee ),( Seung Woon Park ),( Kang Won Lee ),( Young Ho Seo ),( Jae Hoon Kim ),( Sung Jae Choi ),( Young Ho Lee ),( Jong Dae Ji ),( Gwan Gyu Song ) 대한류마티스학회 2016 대한류마티스학회지 Vol.23 No.1
Sjogren’s syndrome (SS) is a chronic autoimmune disorder characterized by lymphocyte-mediated destruction of exocrine glands, which produces classical symptoms of dry eyes and dry mouth. Aside from the clinical manifestations associated with exocrine glands, extraglandular features of SS include a major long-term concern for development of lymphoma. The lifetime risk of non-Hodgkin’s lymphoma (NHL) in an SS patient is approximately 5% to 10%, 20 times higher than that of the normal population. This case report describes a rare occurrence of NHL in the eyelid and lung of an adolescent female with SS, whose disease activity had been monitored closely. This is the first reported case in Korea. (J Rheum Dis 2016;23:61-65)
LEE, SANG-A,JEONG, SE-YOUNG,HWANG, JAE-YEOL,KIM, JONG-PIL,HA, MYONG-GYU,CHO, CHAE-RYONG Gordon and Breach Science Publishers 2005 Integrated ferroelectrics Vol.74 No.-
<P>Metal/oxide/semiconductor capacitors with a Ga 2 O 3 layer were fabricated on p -type Si (100) substrates by the rf magnetron sputtering technique. The Ga 2 O 3 thin films showed uniform surfaces and stable interfaces. The dielectric properties of the MOS structure according to the annealing temperature and thickness of the films were determined by capacitance-frequency and capacitance-voltage measurements. The dielectric constant of the Ga 2 O 3 thin films processed at 650°C was 10. The memory window of the Ga 2 O 3 film was 1.7 V at an applied voltage of 5 V. We observed the behavior of non-uniform elemental distribution in the film by angle-resolved x-ray photoelectron spectroscopy.</P>