운모 기판을 플렉시블 다결정 실리콘 박막 트랜지스터에 적용하기 위한 버퍼층 형성 연구

오준석,이승렬,이진호,안병태,Oh, Joon-Seok,Lee, Seung-Ryul,Lee, Jin-Ho,Ahn, Byung-Tae 한국재료학회 2007 한국재료학회지 Vol.17 No.2

Polycrystalline silicon (poly-Si) thin film transistors (TFTs) might be fabricated on the mica substrate and transferred to a flexible plastic substrate because mica can be easily cleaved into a thin layer. To overcome the adhesion and stress problem between poly-Si film and mica substrate, a buffer layer consisting of $SiO_x/Ta/Ti$ three layers has been developed. The $SiO_x$ layer is for electrical isolation, the Ti layer is for adhesion of $SiO_{x}$ and mica. and Ta is for stress relief between $SiO_x$ and Ti. A TFT was fabricated on the mica substrate by a conventional Si process and was successfully transferred to a plastic substrate.

국내 분산형전원 접속 확대를 위한 배전계통 수용성 증가 방안에 대한 연구

오준석(Joon-Seok Oh),송종협(Jong-Hyup Song),박기옥(Ki-Ok Park),김진하(Jin-Ha Kim),주상도(Sang-Do Joo),김성만(Seong-Man Kim) 대한전기학회 2019 대한전기학회 학술대회 논문집 Vol.2019 No.7

綜合不動産稅 導入에 대한 法經濟學的 檢討

오준석(Oh Joon Seok),이상신(Lee Sang Shin) 한국부동산학회 2005 不動産學報 Vol.25 No.-

1. CONTENTS (1) RESEARCH OBJECTIVES Recently government set up a new plan for stabilizing real estate market in Korea from the perspective of real estate tax structure reform. But, considering the fact the tax instrument has a wide variety of effects in allocation resources in the market, we must find out the expected results and the direction of the market movement in advance. And, to achieve the policy goal, it is more important to design an atmosphere of tax compliance rather than to control the market behavior of economic agents. In this way, I try to see the matter through economic incentive mechanism in the market, and finally, I reached a conclusion. (2) RESEARCH METHOD I adopted Law and Economics perspective into the real estate tax structure. I tried to explain the fact that the policy mechanism is worse in efficiency than market mechanism through mechanism concept. (3) RESEARCH RESULTS From the perspective of Law and Economics, by using sigmaplot, value of real estate asset is inflluenced by tax attributes, especially, the spread between capitla gain tax and withholding tax, which remains leverage incentives from debt financing as investor. Thus, there still leaves reeal estate investors who gather money by bank loan as though the tax policy changes. And, from the legal perspectives,incumbent real estate tax does not breach the constitutional law. 2. RESULTS To promote the function of real estate market mechanism, firstly, transaction tax(acquiring tax, stamp tax) should be lowered by far. Second, property tax can be raised on condition that the tax base is reasonably designed. And finally, capital gain tax should be lowered to accelerating the function of the real estate market. 3. KEY WORDS real estate tax reform, capital gain tax, income tax, realization principle

여자 기계체조선수들이 지각하는 심판판정과 중도포기의도의 관계에서 운동 몰입의 조절효과

오준석(Oh, Joon-Seok) 한국사회체육학회 2016 한국사회체육학회지 Vol.0 No.64

This study analyzed the data of 102 athletes who participated in National Sports festival in May, 2015 in order to investigate the gymnastics referee’s decision which female gymnasts perceive and moderating effects of exercise commitment in relation to intention to decide dropout. Questionnaires developed and used in previous studies were appropriately modified and supplemented as the measuring instrument in accordance with the research purposes and its validity and reliability was verified using the SPSS18.0 statistical program. Firstly, the results of the analysis of the difference by the group the ybelonged to showed that gymnasts in the adult and university division with a lot of exercise experience perceived a low level of exercise commitment, on the other hand gymnasts in middle school division a high level. Meanwhile, gymnasts in the university division perceived a high level of intention to decide dropout while those in the middle school division a low level. And, the results of the analysis of the correlation between measurement variables showed that referee’s decision had a positive(+) correlation with exercise commitment while referee’s decision and exercise commitment had a negative(-) correlation with intention to decide dropout. Finally, the results of the analysis of the moderating effects of exercise commitment showed that at high level of cognitive commitment and behavioral commitment, moderating effect to prevent intention to decide dropout was verified.

제주관광산업발전을 위한 세제지원정책

오준석(Oh, Joon Seok) 한국국제조세협회 2012 조세학술논집 Vol.28 No.1

The economy of Jeju Island depends heavily on tourism industries and related other service areas. Moreover, the weight of tourism industry over the whole Jeju economy increased from 69.4% in 2009 to 76.8% in 2010. As these figures show that the dependency on tourism industry in jeju island is of great importance, the argument of rippling effect of virtuous cycle by boosting up tourism industry can be explained in many ways. In the paper, I studies diverse aspect of tourism industry in Jeju island by gathering and analyzing related figures. As a result, I could reach a conclusion that the product positioning of Jeju island in terms of domestic customers lies in lower level which means low price-low quality segment. This finding shows that this marketing strategy potentially causes stuck in the middle situation when it continues its positioning in the long term, which could deteriorate the basics of tourism industry in Jeju island. In this respect, they should find ways to shifting its marketing positioning from low price-low quality to product development strategy. On the other hand, in terms of foreign customers visiting jeju island, product positioning is located at high price level. This shows foreign customer market also needs to shift its positioning toward diversification of tourism products, which means it is opportune time to make an investment on marketing infrastructure of Jeju tourism industry. In this reason, it is needed to make special incentive systems for improving tourism infrastructure as an accelerator of make investments on the whole economic cycle of jeju island. As implementation solutions, zero rate of VAT should stay for longer periods, which is to be expired this year and establishment of alternative investment funds can be possible for providing and financing infrastructure of tourism industry in Jeju island.

슬래그 연화 용융 거동에 미치는 첨가제 입도의 영향

오준석 ( Joon Seok Oh ),이재홍 ( Jaehong Lee ),이준호 ( Joonho Lee ) 대한금속재료학회(구 대한금속학회) 2017 대한금속·재료학회지 Vol.55 No.8

The Paris climate change agreement made a commitment to keep global warming below 2 ℃. The Korean government confirmed that it would seek a 37% reduction in CO₂ emissions by 2030 from the Business As Usual level. CO₂ emissions from Korean iron and steel industries account for approximately 15.4% of that reduction. Therefore, breakthrough technologies are urgently required to reduce the CO₂ emitted from iron and steel making processes. A high efficiency iron making process is needed, because present methods consume huge amounts of energy. One of the key technologies for high efficiency iron making is more effective slag making. Understanding the effects of basic oxide additives such as lime and dolomite on the slag melting is required. In this study, the effects of additives (CaO and MgO) on the melting behavior the CaO-SiO₂-Al₂O₃(-MgO) slag were investigated using a high temperature in-situ observation technique. For the CaO-SiO₂-Al₂O₃ system, when the particle size of CaO was increased, slag melting was delayed. When 10 wt% of 1-2 mm diameter CaO or MgO was added, it was observed that the MgO addition delayed melting of the CaO-SiO₂-Al₂O₃-MgO system. Accordingly to facilitate slag melting, finer additives are recommended. In addition, it was determined that lime was more useful for making molten slag than dolomite. (Received December 8, 2016; Accepted March 2, 2017)

청소년 운동선수들이 지각하는 비언어 코칭행동 척도개발

오준석(Joon-Seok Oh),박종태(Jong-Tae Park) 한국발육발달학회 2017 한국발육발달학회지 Vol.25 No.1

The objective of this study is to develop criteria of nonverbal democratic, controlled, and neglection coaching behavior with participation from total of 489 adolescent athletes from sports middle/high schools. First, the contents of nonverbal coaching behaviors were extracted through open survey and 36 reserved questions were created for validification of its contents. For reserved questions, validification test for technical statistics, reliability analysis, exploratory, and confirmatory factor analysis was conducted for development of nonverbal coaching behavior criteria. The criteria consists of 5 questions for nonverbal democratic, controlled, and neglection coaching behavior each which is 15 questions in total and it verified cross validity and official validity. The suitability of construction concepts and final questions extracted from such result were debated.

신장 ; 복막투석 중인 말기 신부전환자와 고혈압 환자에서의 심박수 변이도 비교

오준석 ( Joon Seok Oh ),배우형 ( Woo Hyung Bae ),전지민 ( Ji Min Jeon ),김성민 ( Sung Min Kim ),손영기 ( Young Ki Son ),신용훈 ( Yong Hoon Sin ),김중경 ( Joong Kyung Kim ) 대한내과학회 2010 대한내과학회지 Vol.78 No.6

목적: 심박수와 그 조절은 일차적으로 자율신경계의 활성도 즉, 교감신경계와 부교감신경계 각각의 균형에 의해 이루어 진다. 심박수는 운동, 호흡, 대사변화 그리고 육체적 또는 정신적 긴장 등 여러 가지 요인에 영향을 받는다. 현재까지 말기 신부전으로 복막투석을 받고 있는 환자에 있어서 심박수 변이도 변화에 대한 연구는 비교적 드문 실정이다. 이에 저자들은 말기 신부전이 자율 신경계의 기능 장애와 관련이 있는지 알아보기 위해 24시간 활동 심전도를 이용하여 심박수 변이도를 조사하였다. 방법: 2006년 1월 1일부터 2008년 12월 31일까지 김원묵기념 봉생병원 신장내과에 내원한 환자 중 말기 신부전으로 진단받고 복막투석을 시행받고 있는 20명을 대상으로 24시간 활동 심전도를 시행하고 심박수 변이도를 조사하였다. 당뇨병성 신증으로 말기 신부전에 이른 환자의 경우는 대상에서 제외하였다. 연령과 성별이 유사한 65명의 일반 고혈압 환자를 대조군으로 하여 같은 검사를 시행하였다. 심박수 변이도 분석 지표는 시간 계열 분석(time domain analysis)과 주파수 계열 분석(frequency domain analysis)으로 산출 하였다. 결과: 연구 대상 환자는 20명으로 남자가 12명, 여자가 8명이었고, 평균 나이는 53.8±13.1이고, 범위는 27~72세였다. 또한 연령과 성별이 유사한 대조군은 65명으로 남자는 31명, 여자는 34명이었고, 평균 연령은 55.1±13.7세였으며 범위는 23~77세였다. 심박수 변이도 분석 지표 중 HRV index, LF norm 그리고 LF/HF가 환자군에서 대조군에 비해 통계적으로 유의하게 낮았고(p<0.05), HF norm은 높았다(p<0.05). 결론: 말기 신부전으로 복막투석을 받고 있는 환자들은 일반 고혈압 환자들에 비해 전반적인 자율신경계의 활성이 감소한 가운데 상대적으로 교감신경계의 활성은 감소하였고, 부교감신경계의 활성이 증가했다. Background/Aims: Heart rate variability (HRV) is regulated by the balance between the sympathetic and parasympathetic tones. HRV can be used to assess the effects of drugs and other interventions on cardiac autonomic tone, including exercise, respiration, metabolic change, and psychological or physical stress. As few studies have examined HRV in end-stage renal disease (ESRD) patients in Korea, we investigated autonomic nervous system activity reflected in HRV in patients on peritoneal dialysis for ESRD. Methods: We compared the pattern of cardiac sympathetic and parasympathetic activity through time-and frequency-domain analysis of HRV in 20 ESRD patients and 65 hypertensive control subjects using 24-hour Holter monitoring. The patients had been undergoing peritoneal dialysis at the Bongseng Hospital between January 2006 and December 2008. Results: The mean age of the patients and controls was 53.8±13.1 and 55.1±13.7 years, respectively. In the patient group, all of the time-and frequency-domain HRV measures were reduced compared with the control group, including the HRV index, normalized unit of low-frequency (LF norm), and ratio of low-frequency power to high-frequency power (LF/HF), whereas the normalized unit of high frequency (HF norm) was increased. Conclusions: Autonomic tone in ESRD patients on peritoneal dialysis is decreased compared with patients with hypertension. The parasympathetic tone in ESRD patients on peritoneal dialysis dominates over the sympathetic tone. (Korean J Med 78:725-731, 2010)

이온치환투석제거율로 측정한 적절 혈액투석의 신뢰도

오준석 ( Joon Seok Oh ),김성민 ( Sung Min Kim ),신용훈 ( Yong Hun Sin ),김중경 ( Joong Kyung Kim ),손영기 ( Young Ki Son ),안원석 ( Won Suk An ),김성은 ( Seong Eun Kim ),김기현 ( Ki Hyun Kim ) 대한신장학회 2011 Kidney Research and Clinical Practice Vol.30 No.3

Purpose: Quantification of the dialysis dose is an essential element in the management of hemodialysis. The author investigates the reliability of hemodialysis adequacy measured by ionic dialysance (Online clearance monitoring(R), OCM). Because OCM is a non-invasive and instantly accessible method, it could be replaced Kt/V derived from single-pool variable volume urea kinetic model (UKM). Methods: Kt/V using UKM and OCM were measured simultaneously in 51 patients who have received hemodialysis therapy via arteriovenous fistula. The analysis of the data collected from 186 hemodialysis sessions were performed. Results: Kt/V of conventional hemodialysis, high efficiency hemodialysis and hemodiafiltration measured by UKM were 1.39±0.24, 1.41±0.23 and 1.53±0.17, and by OCM were 1.24±0.17, 1.26±0.19 and 1.39±0.19, respectively. The data of UKM were significantly higher than those of OCM (p=0.00). Also, there were strong positive correlations between UKM and OCM in hemodialysis (r=0.80, p=0.00), high efficiency hemodialysis (r=0.65, p=0.00) and hemodiafiltration (r=0.67, p=0.00). Conclusion: The Kt/V using OCM measured by ionic dialysance provided slightly lower data than that of UKM derived from single-pool variable volume urea kinetic model, but it may be a reliable test to evaluate dialysis adequacy in conventional hemodialysis, high efficiency hemodialysis and hemodiafiltration.

안드로이드 앱 API 코딩 가이드 연구

오준석(Joon-Seok Oh),강미영(Miyoung Kang),최진영(Jin-Young Choi) 한국정보과학회 2010 한국정보과학회 학술발표논문집 Vol.37 No.2C

소프트웨어에 잠재적으로 존재하는 프로그래밍 오류는 소프트웨어 취약점을 야기하며, 이런 오류는 개발후 테스팅을 통해 탐지하기 어렵기 때문에 소프트웨어에 지속적으로 존재한다. 개발된 안드로이드 애플리케이션을 업로드 할 때 검수과정을 거치지 않고 업로드가 가능하기 때문에 이런 오류는 반드시 예방해야 한다. 이를 예방하는 방법 중에 하나는 소프트웨어 개발단계에서 시큐어한 코딩 습관을 사용함으로써 제거할 수 있다. 본 논문에서는 안드로이드 애플리케이션에 존재할 수 있는 프로그래밍 오류를 사전에 예방하고, 의도된 동작을 수행하는 안드로이드 애플리케이션을 개발하기 위한 가이드를 제시한다.