인슐린비의존형 당뇨병 환자에서 심전도상 QT 간격 변수들과 허혈성 심장질환 발생의 관계

서승오,진도균,박진철,진희종,임성희,유형준,박성우,박종태 대한노인병학회 2000 Annals of geriatric medicine and research Vol.4 No.3

주의력결핍 과잉행동장애 아동의 지적수준에 따른 정신병리와 실행기능의 차이

천은진,서완석,이종범,김진성,구본훈,송창진,성형모,배준용,배대석 大韓神經精神醫學會 2005 신경정신의학 Vol.44 No.4

To investigate psychopathoIogy and executive functions of attention deficit hyperactivity disorder (ADHD) children according to intelligence level, this study included 197 ADHD children who visited the outpatient department of neuropsychiatry of YeungNam University Medical Center, from July 2000 to June 2002. The children were divided into groups based on their intelligence levels. They were compared by the Personality Inventory for Children (PIC), Conncers' Continuous Performence Test (CPT), and Wisconsin Card Sorting Test (WCST). There were significant differences in PIC, on the subscales of verbal development, socialization and autism. In the CPT, there was no significant difference. In the WCST, there were significant differences in the total number of errors, the number of perseverative errors, the number of completed categories and the number of trials needed to complete the first category. Considering these results, the intelligence level of ADHD children is related to their disabilities and behavioral symptoms.Executive functions such as abstract thinking, categorization, working memory and flexibility had significant relationship to the intelligence levels of ADHD children. Therefore, the intelligence level of children with ADHD influences the higher executive functions of regulating attention and information processing rather than attentional functions and capacity alone.

근대 이행기의 서구 과학기술 수용을 통해서 나타난 『덕혜입문』의 기독교적 이해

서상진(Seo, Sang-Jin) 동서신학연구소 2024 동서신학 Vol.8 No.1

『덕혜입문』은 런던선교회에서 중국으로 파송된 그리피스 존이 션즈싱(沈子星, 1825-1887)의 도움을 받아 1879년에 한문으로 초판을 출간한 이후, 약 50년 동안 일곱 차례(1882, 1887, 1890, 1897, 1907, 1908, 1909)에 걸쳐 출간되었다. 『덕혜입문』이 일곱 번에 걸쳐 지속적인 출판한 것은 독자들에게 널리 보급되었다는 것을 증명할 뿐 아니라 그 가치가 인정되었다고 할 수 있다. 『덕혜입문』은 1879년 우창에서 시행된 과거 시험을 응시하러 온 수험생들에게 전도하기 위해 배포된 도서이다. 화중 선교의 아버지(華中宣敎之父)라고 불리는 『덕혜입문』의 저자인 그리피스 존은 1876년 한커우서회(Hankow Tract Society)를 창립하여, 기독교 문서 사역에 집중했다. 그리피스 존은 한커우서회를 중심으로 많은 서적을 출간하여, 문서 선교에 큰 업적을 남겼는데, 그 저술 중 하나가 『덕혜입문』이다. 『덕혜입문』은 언더우드 선교사에 의해 번역되었고, 후에 게일 선교사에 의해 수정하여 개정판이 출간되었다. 『덕혜입문』은 중국 식자층을 전도하고자 하는 의도를 가지고 저술되었고, 당시 유학자들의 관심이 많았던 유교 경전과 심성론을 인용하여 사용하였고, 잘못된 부분을 냉철하게 지적하기도 했다. 또한 전도용으로 제작되었지만, 서구 과학기술과 서양 철학까지 소개하여, 중국 지식인들에게 기독교가 보편적 진리임을 말하고자 했다. 『덕혜입문』은 초기 한국교회에도 소개가 되어 1세대 교회 지도자들이 회심하기도 했다. 특히 개신교 7명의 목사 중 한 명인 서상륜(徐相崙, 1848-1926)의 동생 서경조(徐景祚, 1852-1938) 목사는 존 로스(John Ross, 1842-1915) 선교사에 의해 『덕혜입문』이 황해도 송천리(松川里, 우리말로 ‘솔내’라고 부르는 데, 여기서 ‘소래’란 이름이 유래했다)에 도착했을 때, 이 책을 읽고 회심한 것으로 전해진다. 『덕혜입문』은 초기 한국교회에 많은 영향을 주었다. “The Gate of Virtue and Wisdom” was first published in Classical Chinese in 1879 with the help of Shen Zixing (1825-1887) by Griffith John, who was dispatched to China by the London Missionary Society. Over the next 50 years, it was published seven times (1882, 1887, 1890, 1897, 1907, 1908, and 1909). The continuous publication of “The Gate of Virtue and Wisdom” not only proves its widespread dissemination among readers but also attests to its recognized value.“The Gate of Virtue and Wisdom” was distributed to candidates who came to take the imperial examinations held in Wuchang in 1879 for evangelistic purposes. Griffith John, the author of “The Gate of Virtue and Wisdom” known as the Father of Central China Mission, founded the Hankow Tract Society in 1876 and focused on Christian literature ministry. He made significant achievements in literature-based evangelism by publishing numerous books through the Hankow Tract Society, one of which was “The Gate of Virtue and Wisdom” “The Gate of Virtue and Wisdom” was translated by missionary Underwood and later revised and reissued by missionary Gale. The book was written with the intention of evangelizing the educated class in China, using and critically addressing Confucian classics and theories of human nature, which were of great interest to scholars at the time. Although it was created for evangelistic purposes, it also introduced Western science and philosophy to demonstrate to Chinese intellectuals that Christianity is a universal truth. “The Gate of Virtue and Wisdom” was introduced to the early Korean church, leading to the conversion of first-generation church leaders. Notably, Reverend Seo Gyeong-jo (徐景祚, 1852-1938), the brother of one of the seven Protestant ministers, Seo Sang-ryun (徐相崙, 1848-1926), converted after reading “The Gate of Virtue and Wisdom” when it arrived in Songcheon-ri (松川里, called ‘Solnae’ in Korean, from which the name ‘Sorae’ is derived) in Hwanghae Province, through missionary John Ross (1842-1915). “The Gate of Virtue and Wisdom” had a significant impact on the early Korean church.

CMP 공정의 재현성 확보를 위한 공정제어 범위의 결정

서용진,정소영,김철복,박성우,이경진,김기욱,박창준 대불대학교 2002 大佛大學校大學院 硏究論文集 Vol.- No.1

To achieve the ULSI goals of higher density and greater performance, STI(shallow trench isolation)-CMP(chemical mechanical polishing) process has been attracted. Recently, the direct STI-CMP process without the conventional complex reverse moat etch process has established by using slurry additive with the high selectivity between SiO2 and Si3N4 films for the purpose of process simplification and in-situ EPD(end point detection). However, STI-CMP process has various defects such as nitride residue, torn oxide and demage of silicon active region. Also, it was difficult to assure the suitable process margin in the STI-CMP process. To solve these problems, in this paper, we discussed to determine the control limit of process, which can entirely remove the oxide on nitride film from the most area of high density as reducing the damage of dense moat area and minimizing dishing effect in the large field area. We, also, evaluated the wafer-to-wafer thickness variation and the day-by-day reproducibility of STI-CMP process after repeatable tests.

반도체-원자 초격자의 광전자 특성

서용진,정소영,박성우 대불대학교 2002 論文集 Vol.8 No.1

Optoelectronic characteristics of the superlattice as a function of deposition temperature and annealing conditions have been studied. The nanocrystalline silicon/adsorbed oxygen superlattice formed by molecular beam epitaxy (MBE) system. Consequently, the experimental results of superlattice with multilayer Si-O structure showed the stable photoluminescence(PL) and good insulating behavior with high breakdown voltage. This is very useful promise for Si-based optoelectronic and quantum device as well as for the replacement of silicon-on-insulator(SOI) in ultra high speed and lower power CMOS devices in the future, and it can be readily integrated with silicon ULSI processing.

액-액 평형에서 첨가제의 영향에 관한 연구

서진기,정상훈,박동원 동아대학교 공과대학부설 생산기술연구소 1996 生産技術硏究所硏究論文集 Vol.1 No.2

The experimental binodal curves and tie lines were determined for solvent-5% KF salt solution-1 propanol systems at 25℃, and those tie line data were used to test thermodynamic consistency. From experimental data of tie line, the parameter estimated using NRTL and the caculated values fo tie line were predicted. The effect of KF salt on liquid-liquid equilibria was also studied.

가공열처리에 의한 Ti-6Al-4V 합금의 조직 및 경도 변화에 대한 연구

서동이,김성진,한전건 成均館大學校 科學技術硏究所 1988 論文集 Vol.39 No.2

The microstructure and hardness change by thermomechanical processing was studied in the temperature range of α+β phase(800℃) and above the β-transus temperature(1,050℃) respectively in Ti-6A1-4V alloy. Equiaxed a morphology could be obtained through hot rolling and annealing at 800℃ while a lamellar structure was produced only by solution treatment followed by annealing without hot rolling. The morphology change from lamellar a to equiaxed a was Promoted with increasing the degree of deformation. Thermome chanical processing above β transus temperature resulted in the combined structure of serrated α, acicular a and fine lamellar structure. It was also found that prolonged annealing could induce the formation of egaiaxed α at highly stressed area. Hardness appeared to be higher in lamellar a structure than equiaxed a structure.

Cd/Te 몰분율에 따라 MOVPE 법으로 성장된 HgCdTe 박막의 특성

서대원,Lanh, Ngoc-Tu,김창경,서상희,김병국,김진상 경북대학교 센서기술연구소 2002 센서技術學術大會論文集 Vol.13 No.1

설계강우의 시간적 분포모형 적용성 연구

서진호,이상배,조흥제,민병형 東亞大學校 海洋資源硏究所 1995 硏究論文集 Vol.8 No.1

위천대표유역의 11녀간의 단독강우사상 3,550개를 선별하여 Yen-Chow의 삼각형 및 사다리꼴, Huff, Pilgrim-Cordery 및 Mononobe의 방법에 의한 지속시간별 설계강우의 시간적분포 특성치를 제시하였다. Yen-Chow 방법의 삼각형분포의 특성치 a 값은 0.44에서 0.50까지 분포하였고, 사다리꼴은 지속시간이 길어질수록 무차원 특성변수 h 의 값이 점차 커지는 경향을 나타내었다. Huff 4분기법에 의한 분석결과는 2구간 강우가 지배적이고 3구간 강우가 낮은 분포를 나타내었다. 또한 Pilgrim-Cordery 방법에서는 6시간까지는 점방위 강우형이고, 6시간이상은 점차 후방위로 변화하였다. Mononobe 방법은 시간별 강우량을 중앙집중형으로 나타내었다. 본 방법들의 적용성을 검토하기 위해 위천유역의 32개 관측 강우-유출자료를 이용하였고, 분석결과 Yen-Chow 방법의 삼각형분포가 비교적 재현성이 높게 나타났다. 이들 설계강우의 시간적분포모형들은 미계측유역의 유출해석에 중요한 수단을 제공할 것으로 판단된다. The historical data from 3,550 event storms during 11 years in Wi-stream basin have been used to investigate the statistical parameter of the time distribution for design storms by the method of Yen-Chow, Huff, Pilgrim-Cordery and Mononobe. The dimensionless value of triangular hyetograph, a , ranges from 0.44 to 0.50 and trapezoidal hyetograph, h , value increases as the duration time is getting longer in Yen-Chow method. In the Huff, the second-quartile storms occurred most frequently and third-quartile storms occurred most infrequently. In the Pilgrim-Cordery, the shapes for shorter than 6-hour durations are advanced tendency. However, for longer than 6-hour durations show delayed tendency. In the Mononobe, every one hour rainfall occured Centered Type. The application of these methods for each duration time was tested by using the observed rain-fall-runoff data of Wi-stream basin. As a result, the reappearance of hydrographs of triangular hyetograph by Yen-Chow method showed promising, and it was approved to be used for prediction of the ungaged basins.

HSS STI-CMP적용을 위한이중 패드의 최적화

서용진,박성우,김철복,정소용,이경진,김기욱,박창준 대불대학교 2002 大佛大學校大學院 硏究論文集 Vol.- No.1

As the device geometry shrinks to the deep submicron region, chemical mechanical polishing(CMP) planarization become a more essential technique of advanced ULSI process. Also, CMP process was required for the global planarization of inter-metal dielectric(IMD), inter-level dielectric(ILD) layers and interconnections with free-defect. Especially, the complete global planarization of IMD, ILD and interconnections can be achieved only with the CMP process. However, as the IMD and ILD layer gets thinner, several problems were found in the CMP process. It does have various problems such as dishing effect, torn oxide defects and nitride residues in oxide. So, it leads to severe circuit failure, which affects yield. In this paper, we studied the characteristics of polishing pad, which can apply STI-CMP process for global planarization of multilevel interconnection structure. Also, we investigated the effects of different sets of polishing pad, such as soft and hard pad. As an experimental result, hard pad showed center-fast type, and soft pad showed edge-fast type. Totally, the defect level has shown little difference, however, the counts of scratch was defected less than 2 on JR111 pad. Through the above result, we can select optimum polishing pad, so we can expect the improvement of throughput and device yield.