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Tunnel Oxide Uniformity 개선을 통한 신뢰성향상에 대한 연구
강윤성(Yun Seong - Kang),박현호(Hyun-Ho Park),김종환(Jong-Hwan Kim),신상봉(Sang-Bong Shin) 대한기계학회 2011 대한기계학회 춘추학술대회 Vol.2011 No.10
The semiconductor industry, such as significant CPU SYSTEM LSI (Large Scale Integrated circuit) and Memory can be divided into areas. Especially in recent memory, part of Dynamic Random Access Memory (DRAM) and Flash memory technologies with the (technology) has shown a marked development. For example, its fragmentary 2001 ITRS (Internal Technology Roadmap for Semiconductor) in the nonvolatile (Non-Volatile Memory, NVM) technology requirement roadmap has been added. With this trend, many memory manufacturers to present the development and mass production of NVM devices has progressed. Of particular interest in the NVM products Micro Processor Unit (MPU) or different perspective and scaling in DRAM products for NVM technology node (technology node) of the tunnel insulating film thickness (tunnel oxide thickness), write / erase voltages (program / erase voltage), data maintenance (data retention) SYSTEM LSI products with characteristics different from reduced (scaling) is progressing slowly, since the generation of 65nm design rule also in the reduction (scaling) is not a constant, and is characterized by: These flash memory devices require the unique characteristics of the end (intrinsic quality) is required to improve. In this study, the most important factor in NVM devices (critical factor) NAND flash tunnel oxide is improved through the Thickness variation was studied for ways to improve reliability.
김정환(Jung Hwan Kim),강윤성(Yun Seong Kang),우제민(Jae Min Woo),박영성(Yeong Seong Park) 대전대학교 환경문제연구소 2015 환경문제연구소 논문집 Vol.19 No.-
H2S adsorption characteristics of adsorbent made by coffee waste were investigated. For analyses of the manufactured adsorbent, various methods such as scanning electron microscope(SEM), measurements of BET(Brunauer Emmett Teller) surface area, pH, and Iodide adsorption were adopted. As major adsorption characteristics, adsorption equilibrium capacity was measured by using a batch type experimental apparatus for operating variables such as adsorption temperature(25~45℃), adsorbent types. The experimental result showed that the H2S adsorption equilibrium capacity of adsorbent made by coffee waste much more increases with steam activation for the coffee waste.
약물과민성증후군과 유사한 임상양상을 보인 붉은사슴뿔버섯 중독 1예
양재남 ( Jae Nam Yang ),강지혁 ( Ji Hyuk Kang ),강윤성 ( Yun Seong Kang ),석순자 ( Soon Ja Seok ),김우경 ( Woo Kyung Kim ) 대한내과학회 2013 대한내과학회지 Vol.85 No.2
73세 남자 환자가 건강원에서 동충하초와 버섯으로 만든 술을 복용하고 하루 뒤에 발생한 얼굴 표피탈락과 구강점막염을 주소로 내원하였다. 약물과민성증후군 의심하에 치료하였으나, 환자 사망 이후에 버섯의 성분 분석 결과에서 독버섯으로 알려진 붉은사슴뿔버섯이 확인되었다. 저자들은 약물과민성증후군과 유사한 임상양상을 보인 붉은사슴뿔버섯 중독 1예를 경험하였기에 문헌고찰과 함께 보고 하는 바이다. The clinical aspects of intoxication can be similar to those of drug hypersensitivity syndrome, including desquamation, hematologic abnormalities, multiple organ failure, and even death. Many people consume mushrooms that they collect in the mountains, and consequently, the incidence of poisonous mushroom intoxication is increasing. Podostroma cornu damae is a poisonous mushroom not well-known to the public that contains trichothecene, a deadly poison. It is difficult to differentiate P. cornu-damae from other edible mushrooms, especially young Ganoderma lucidum. Therefore, the general public should be aware of the dangers of indiscreet ingestion of mushrooms. When physicians treat patients presenting clinical symptoms similar to those of drug hypersensitivity reaction following the intake of mushrooms, poisonous mushroom intoxication must be taken into consideration. We report this case together with a literature review, as we experienced one P. cornu-damae intoxication case showing similar clinical aspects to drug hypersensitivity syndrome. (Korean J Med 2013;85:223-228)
만성 자발성 두드러기 환자에서 자가혈청 피부반응검사에 따른 검사실 소견과 증상 조절을 위한 약제의 비교
이수경 ( Su Kyoung Lee ),조민호 ( Min Ho Cho ),김병연 ( Byeong Yeon Kim ),강윤성 ( Yun Sung Kang ),최승헌 ( Seung Heon Choi ),손성욱 ( Seong Wook Sohn ) 대한천식알레르기학회 2012 천식 및 알레르기 Vol.32 No.4
Background: The autologous serum skin test is reported to be positive in up to 60% of patients with chronic spontaneous urticaria. However, the clinical role of autologous serum skin test is still poorly understood. Methods: We reviewed the medical records of 166 chronic spontaneous urticaria patients whose symptoms lasted for more than 6 weeks and compared their laboratory findings and medication levels according to autologous serum skin test reactivity. Results: Autologous serum skin test was positive in 69 (41.6%) chronic spontaneous urticaria patients. There were no significant differences between autologous serum skin test-positive and autologous serum skin test-negative groups in laboratory findings, such as anti-microsome antibody, anti- thyroglobulin antibody, anti-nuclear antibody, total immunoglobulin E, complement 4 level levels, rheumatoid factor, erythrocyte sedimentation rate and D-dimer. Autologous serum skin test were not related to medication levels. Eight patients (11.6%) of autologous serum skin test-positive groups and 6 patients (6.2%) of autologous serum skin test-negative groups need level 4 medication (usage of cyclosporine, dapsone or anti-immunoglobulin E monoclonal antibody) to control urticaria without statistical significance. Conclusion: Autologous serum skin test was positive in more than 40% of chronic spontaneous urticaria patients. However, laboratory findings and medication levels were not affected by autologous serum skin test reactivity.