가성 종양으로 보인 신경베체트병 -임상 및 병리적 연관 비교-

박운규,김승현,김주한,김명호 대한신경과학회 1998 대한신경과학회지 Vol.16 No.2

고교 야구 선수들의 견관절 외회전 및 내회전근의 근력 및 그 특성

이제운,윤승호 충남대학교 의과대학 지역사회의학연구소 1993 충남의대잡지 Vol.20 No.2

The imbalance of rotator muscles of shoulder frequently causes shoulder injury in many baseball players. This study was intended to evaluate the strength characteristics of external and internal rotator muscles in high school baseball players. Isokinetic tests of external/internal rotators were performed using Cybex Ⅱ^+ Isokinetic dynamometer in nine pitchers, thirteen nonpitchers and twenty normal control subjects. And the flexibility of external rotator muscles of shoulder was evaluated by the hand-to-shoulder-blade Test. The results were as follows : 1) In pitchers, mean peak torque ratios of external/internal rotators were significantly high in nondominant side at 180 and 300 deg/sec, mean peak torque and mean peak torque body weight ratios of external rotators were significantly high in nondominant side at 180 deg/sec, 180 and 300 deg/sec respectively, mean peak torque of internal rotators were significantly high in dominant side at 300 deg/sec. 2) In nonpitchers, peak torque ratios of external/internal rotators were significantly high in nondo minant side at 180 deg/sec, but peak torque and peak torque body weight ratios of internal rotators were both significantly high in dominant side at 180 and 300 deg/sec. 3) In comparison between pitchers and nonpitchers, peak torque ratios of external/internal rotators in dominant side were significantly high in nonpitchers at 180 and 300 deg/sec, but there were no significant differences in nondominant side. 4) In flexibility tests of external rotators, pitchers showed statistically significant tightness in external rotators than nonpitchers and control group in dominant side, but there were no statistically significant differences in nondominant side. In conclusion, pitchers showed weakness and tightness in shoulder external rotators, which may lead to major shoulder injury. Therefore evaluation of muscle power and flexibility was thought to be one of the very useful screening tests for the prevention of shoulder injury.

하지층 종류에 따른 DLC 막의 접착력 및 잔류응력 변화

崔雲,南勝義 弘益大學校 科學技術硏究所 1996 科學技術硏究論文集 Vol.7 No.1

In this study, hydrogenated diamond-like-carbon (DLC) films were synthesized by rf plasma deposition system, and their residual stresses, and adhesions were extensively investigated. The best adhesion with substrates was observed in the Si substrates. The adhesion strength was generally decreased with an order of Si>metal>ceramics. The adhesion is strongly enhanced by the formation of carbides at the interfaces, while deteriorated by the formation of interface oxides occurring during plasma processes. When the polycrystalline Si substrates in stead of single crystal Si are used, the peak stresses are reduced to be 1∼3 GPa indicating the dependency of generated stresses on the microstructures and density of Si substrates.

초등학교 국어과 맞춤법 교육의 체계화

이승왕,이병운 한국초등국어교육학회 2010 한국초등국어교육 Vol.42 No.-

국어과 맞춤법 교육은 국어 기초 능력으로서 매우 중요한 의미를 가진다. 하지만 제4차 교육과정에서부터 2007 개정 교육과정에 이르기까지 맞춤법 교육은 주로 초등학교 저학년에서만 다루었을 뿐만 아니라 체계적이지도 못하였다. 최근에는 언어 환경의 변화와 더불어 규범을 지키지 않는 경우가 흔히 발생하고 있다. 학습자의 바람직한 규범 생활을 위해서 맞춤법 교육은 적정성, 계열성, 계속성, 연계성을 고려하여 이루어져야 할 것이다. 본 연구에서는 한글 맞춤법(1988)을 근거로 내용을 선정하고 계열화하는 과정을 살펴보고자 하였다. 철자법은 ‘자음과 모음, 발음과 표기, 형태와 표기’의 순서로 계열화할 수 있고, 띄어쓰기는 ‘단어, 구(절), 문장’의 순서로 제시할 수 있다. 문장 부호는 ‘마침표, 쉼표, 따옴표 , 묶음표, 이음표, 드러냄표/안드러냄표’의 순서로 배열할 수 있다. The purpose of this study is to systemized the contents of teaching Korean orthography. Many korean teachers think that the necessity of teaching Korean orthography in elementary school. because there are little contents of teaching Korean orthography in Korean education. The teaching of Korean orthography is lacking in many ways :especially, in non-systematic and non-sequence curriculums. We need systematic teaching contents of Korean orthography. We can select consonants and vowels, pronunciation and writing, morphology and writing, line spacing(word, phrase/clause and sentence), punctuation marks(period, comma, quotation mark, parenthesis, connection mark, and emphasis/ellipsis) as learning elements. As for orthography, we can sequence ‘consonants and vowels, pronunciation and writing, morphology and writing’, as learning elements. As for line spacing, we can sequence ‘word, word phrases(clauses) and sentences’. On the basis of the felicity of learning. As for punctuation marks, we can sequence ‘period, comma, quotation marks, parenthesis, connection marks, and emphasis/ellipsis’, as learning elements.

공공기관 엔터프라이즈아키텍처 성숙도 측정을 통한 정책 시사점 연구

오승운,박현우 한국정보사회진흥원 2008 정보화정책 Vol.15 No.4

정보화 발전과 함께 정보시스템의 투자규모가 확대됨에 따라 중복투자가 발생하고 시스템 간 연계가 복잡하게 되면서 이를 해결할 수 있는 수단이 필요하게 되었다. 이로 인해 엔터프라이즈아키텍처(EA) 도입 및 활용이 의무화 되었다. 더불어 EA의 지속적인 발전 및 고도화 방향 설정을 하기 위한 도구로 범정부 EA 통합 성숙도 모델 v2.0이 개발되었다. 공공기관 성숙도 측정 결과는 2006년 및 2007년 자료를 활용하였으며 2006년 자료는 개별기관의 EA 도입계획을 분석하였고 2007년은 EA 실태조사 및 성숙도 측정 결과를 분석하였다. 연구결과 공공기관 성숙도 수준은 전체 영역 평균 2.0 수준으로 관리영역은 2단계인 정의 수준, 수립 영역은 2단계인 기준수립 수준, 활용 영역은 1단계인 인식 수준이며 국내는 아직까지 EA 활용을 통한 성과를 얻기에는 아직 이른 시점으로 분석되었다. 본 연구는 국내 EA 성숙도 측정을 통한 정책시사점을 얻기 위한 연구로 이를 위해 선진국가의 EA 성숙도 모델 및 측정 제도를 연구하고 국내 EA 성숙도 측정 결과를 분석하였다. 그 결과 국내 EA 성숙도 측정 제도와 공공기관의 EA 현 수준의 문제점 및 개선방향 제시가 이 연구의 목적이다. The size of investment in information systems is magnified along with informatization development. Expenditures are frequently sourced from many different uncoordinated budgets, resulting in significant duplication, redundancy as well as conflict in the demand for resources. As a result of these problems, the introduction and management of Enterprise Architecture (hereinafter referred to as "EA") in organizations has been mandated by law in Korea. The data from 2006 and 2007 has been applied to the public agency maturity assessment results. The 2006 data was used in analyzing EA introduction plans of the individual agencies, and the 2007 data was used in maturity assessment results as well as the actual conditions of EA. Research results of the public agency maturity level showed an overall average level of 2.0: Level 2 (Definition Level) in the Management Area, Level 2 (Baseline Establishment Level) in the Establishment Area, and Level 1(Recognition Level) in the Use Area. The results reflect that achieving performance from EA use is still too early to calculate. The purpose of this study is to get the current political implications on EA via the assessment of domestic EA maturity. For this, we analyzed the domestic EA maturity assessment results and studied maturity models and EA assessment systems of other advanced countries. By using these results, the aim of this research is to recognize the problems and to suggest some directions for improvement of domestic EA maturity assessment systems and the current levels of public agency EA.

레이저 스페클간섭법에 있어서 스페클크기와 측정 한계에 관한 연구

윤성운,김경석,양승필,정현철,김정호,이도윤 한국공작기계학회 1996 한국생산제조학회지 Vol.5 No.1

The high coherence of laser beam has made it possible to observe interference effects even in the light scattered from rough surfaces. That's why, when object with a scattering surface is illuminated with laser light, we do see a speckled appearance due to random interference. This sort of unique property of laser speckle has brought into existence the new noncontacting techniques such as speckle metrology method of measuring deformation, displacement, and vibration etc of objects with high optical sensitivity. The measurable range of speckle metrology especially used to measure in-plane information, however, is limited by some factors, the so-called strain, rotation, tilt of surface and out of displacement perpendicular to the plane of analysis. This restrictions severly limits the measurable range of speckle metrology by causing the decorrelation of speckle patterns. It is the purpose of this paper to give a survey on the measurable limitation of speckle photography method that is one of speckle metrology. Namely we will discuss the mutual relationships and problems of each limitations adding the restriction of the largest and smallest displacement measurable with speckle methods.

전계발광소자를 위한 강유전체 박막의 제작 및 특성

배승춘,김정환,김호운,박성근,김기완 경북대학교 센서기술연구소 1997 센서技術學術大會論文集 Vol.8 No.1

PLT and PLZT feroelectric thin films were fabricated on ITO substrate by rf magnetron sputtering. Pressure was 30mTorr, rf power was 180W and substrate temperature was varied from room temperature to 500℃. In this case, PLT had the highest dielectric constant of 120 at 500 ℃, oppositly PLZT had the highest dielectric constant of 312 at room temperature. I-V characteristics of PLZT film were shown that leakage current of PLZT film deposited at room temperature was below 3μA at 100V.

프리스트레스트 콘크리트 교량 정착부의 응력분포특성

유성운 관동대학교 1997 關大論文集 Vol.25 No.2

Current trends in bridge construction show increased utilization of precast and prestressed concrete. Serveral box girder bridges with post-tensioned anchorage zone have experienced large cracks along the tendon path in the anchorage zones at the design stressing load. Cracking provides a path for penetration of moisture and salts and thus present a potential corrosion and frost damage. In addition, such cracking negates a major reason for the usee of prestressed concrete, the minimization of service load cracking. The experimental program investigated the primary variables affecting the formation of the tendon crack. This include physical tests of 14 test specimen. This paper presents the observations noted in an extensive physical test

토끼 태자에 형성시킨 구순열상의 치유과정에서 수종 성장인자 분포에 관한 연구

백승학,양원식 대한치과교정학회 1997 대한치과교정학회지 Vol.27 No.5

성체의 상처 치유과정 중 반흔조직 형성에 수종의 성장인자가 관련이 있는 것으로 보고되고 있으나, 태자의 피부상처가 반흔형성없이 치유되는 기전에 관한 성장인자의 역할은 아직 알려져 있지 않다. 따라서 본 연구의 목적은 토끼 태자의 상처 치유과정에서 반흔조직의 형성과 관련이 있는 수종 성장인자의 분포를 조사하기 위한 것이다. 뉴질랜드산 흰 토끼를 임신 3기의 중반인 24일째에 자궁절개술을 시행하고 태자에 인위적으로 구순열상을 만든후, 봉합한 군(봉합군)과 봉합하지 않은 군(비봉합군), 정상대조군(sham operated control group)으로 나누고 이들을 각각 수술후 1, 2, 3, 5, 7일째에 희생시켜 상처치유에 대한 육안관찰 소견과 H&F염색소견 및 TGF-β1, TGF-β2, PDGF, bFGF의 면역조직화학적 염색 소견을 관찰하여 다음과 같은 결론을 얻었다. 1. 봉합군과 비봉합군에서 전기간동안 염증반응과 반흔조직의 형성 그리고 신생 혈관의 형성 증가는 없었다. 2. 비봉합군의 재상피화가 봉합군에 비해 다소 느렸다. 3. bFGF는 정상대조군, 봉합군과 비봉합군에서 차이가 없었다. 4. PDGF는 봉합군과 비봉합군에서 1, 2일군에서 증가하였다가 그후 감소하여 정상대조군과 차이가 없었다. 5. TGF-β는 봉합군과 비봉합군에서 1, 2일군에서 약간 증가하였다가 그후 감소하여 정상대조군과 차이가 없었다. TGF-β1에 비하여 TGF-β2의 검출양이 많았다. Recently several growth factors such as TGF-β1, TGF-β2, PDGF, bFGF are known to play an important role in scar formation following adult tissue injury. But there is little known about the role of growth factors in fetal tissue healing without scar formation. Therefore the purpose of this study is to investigate the distribution of growth factors which are involved with scar formation in the artificially created cleft lip wound healing of fetuses. The author had undergone hysterotomy and created cleft lip-like defects on fetuses of New Zealand White Rabbit in mid-third trimester(24 days). Fetuses were divided into 3 groups(the repaired group, the unrepaired group and the sham-operated control group). At 1, 2, 3, 5, 7days after procedure, the repaired, the unrepaired and the control groups were obtained by Caeserean section. After documenting the viability of fetuses, fetuses were photographed to compare size and facial morphology and sectioned for histological examination by H & E stain and spatial and temporal deposition of TGF-β1, TGF-β2, PDGF, bFGF by immunohistochemical method. The findings are summarized as follows 1. There were lack of inflammation and scar formation and neovascularity in the repaired and the unrepaired group during experimental periods. 2. The reepithelialization of the unrepaired group was slower than that of repaired group. 3. There were no differences of distribution of bFGF in the control, the repaired and the unrepaired group. 4. PDGF was increased at post-op. first and second day and decreased after post-op. third day. Eventually, there were no differences in the control, the repaired and the unrepaired group. 5. TGF-β1 and TGF-β2 were slightly increased at post-op. first and second day and decreased after post-op. third day. Eventually there were no differences in the control, the repaired and the unrepaired group. And TGF-β2 is more densely stained than TGF-β1.

農業副産物을 이용한 廢水중의 Cr( Ⅵ) 및 Cd(Ⅱ)이온의 除去

朴勝祚,宋運坤 동아대학교 환경문제연구소 1986 硏究報告 Vol.9 No.1

This study was carried out in a batch and a continuous apparatus to removal Cr(Ⅵ) and Cd(Ⅱ) using formaldehyde -H₂SO₄ treated agricultural by-products as an adsorbents. Some results obtained are summerized as followings: 1. The best one of five adsorbents is Formaldehyde· H₂SO₄ treated Saw Dust in batch adsorption tests. 2. Equilibrium relations between adsorbents and adsorbates was concided in Freundlich equation.(0.15≤1/n≤0.47) 3. Adsorption rate of Formaldehyde· H₂SO₄ treated Saw Dust was not effected more or less by pH and adsorbed Formaldehyde· H₂SO₄ treated saw Dust showed desorption rate of about 80%. 4. Excellent conditions of a continuous adsorption apparatus are bed depth(15 ㎝), flew rate(255 ㎝/hr). 5. The adsorptive capacity of Formaldehyde· H₂SO₄ treated Saw Dust are 5.7㎎ Cr(Ⅵ)/FTSD g and 55㎎ Cd(Ⅱ)/FTSD g in a continuous adsorption tests.