韓國리스産業의 海外直接投資에 관한 硏究

申東洙,朴鍾聲 홍익대학교 경영연구소 1995 경영연구 Vol.20 No.-

Waveguiding Effect in Electroabsorption Modulator: Passivation Layers and Their Impact on Extinction Ratios

신동수 한국전자통신연구원 2005 ETRI Journal Vol.27 No.1

Waveguide structures of the stand-alone electroabsorption (EA) modulator and the electroabsorption modulated laser (EML) are investigated using the 3D beam propagation method. The EA waveguide structures with InP-based passivation layers show saturation in the extinction ratio (ER) due to the stray light traveling through the passivation layers. This paper demonstrates that narrower passivation layers suppress stray-light excitation in the EA waveguide, increasing the ER. A taper structure in the isolation section of the EML waveguide can reduce the mode mismatch and suppress the excitation of the stray light, increasing the ER further. Low-index-polymer passivation layers can confine the mode more tightly in the active waveguide, yielding an even higher ER.

수리모형실험을 통한 복합지하공간 침수방지대책 영향 평가

신동수,박재범,손태석,조덕준,Shin. Dong Soo,Park. Jae Beom,Shon. Tae Seok,Jo. Deok Jun 한국방재학회 2012 한국방재학회논문집 Vol.12 No.4

도시기능의 다양화는 복합 지하공간에 대한 개발과 수요를 증가시키고 있으며, 기후변화로 인한 집중호우 등으로 복합 지하공간의 침수 가능성은 더욱 높아지고 있는 상황으로 지하공간에서의 침수피해를 최소화하기 위한 다양한 침수방지 대책이 필요하다. 최적의 침수방지 대책 수립을 위해서는 수리 및 수치모형 실험등을 통하여 침수방지 대책별 지하공간에서의 흐름특성에 대한 연구가 필요하나 국내에서는 이에 대한 연구가 미흡한 실정이다. 본 연구에서는 지하공간 침수위험성이 존재하는 유역을 대상으로 EPA SWMM 모형을 구축하여 유출해석을 수행하고 그 결과를 복합지하공간에 대한 침수유량으로 적용하였다. 또한, 지하저류시설, 모래주머니, 차수벽 등의 침수방지대책을 고려한 시나리오를 구축 후 수리모형실험을 통해 주요 지점별 침수수위 변화를 파악함으로써 지하 공간의 침수위험도를 분석하였다. Variation of the urban functions on complex underground space development and increasing demand, and due to heavy rainfall caused by climate changing, flooding in complex underground space into a situation where the possibility of more increases to minimize flood damage in underground space for various requires measure to prevent flooding. In order to establish the optimal protect against flooding, a study uses the hydraulic and numerical model experiments, and each inundation measures the flow characteristics in an underground space required for the research and studies in a Korea, however, it has been little. In this study, the risk of flooding underground space in the presence of EPA SWMM model basin runoff analysis to build up complex underground space and the results were applied at a flow rate on flooding. Not only the study calculated the experimental value every scenario through checking whether there is storage facility or not, the installation of the sand bag and barrier wall by making the underground space of special building which mainly affected by the quantity of runoff in the object basin into hydraulic model, but also tried to analyze the flooding tendency of the underground by figuring out water level change of the Inundation.

낙동강하구의 점착성 퇴적물의 이동에 대한 연구

신동수 경상대학교 해양산업연구소 1997 해양산업연구소보 Vol.9 No.-

Significant portion of the pollution load is quite often transported adsorbed to suspended aggregates of cohesive fine sediments. Thus, the cohesive sediment transport problem is important in predicting and controlling water quality, and pollution in estuaries and coastal waters. Contents of this study are : 1) Physical processes of cohesive sediment transport such as flocculation, settling, deposition. erosion are described based on the review of literature. 2) Laboratory settling experiments to further understanding of the physical processes of cohesive sediment transport. 3) Field measurements and sampling for the estimation of cohesive sediment transport 4) Improvement of cohesive sediment transport model. 5) Application to Nakdong estuary.

잘 사는 나라, 정의로운 사회

申東洙 경기대학교경영대학원 1994 最高經營者課程 經營硏究 Vol.8 No.-

낮병원 치료 : 2년간 추적연구

조맹제,이부영,신동수 大韓神經精神醫學會 1994 신경정신의학 Vol.33 No.1

저자들은 1989년 1월 1일부터 1990년 12월 31일까지 서울대학교병원 낮병원에서 퇴원한 만성정신분열병 환자 30명을 같은 기간 보호병동에서 퇴원한 정신분열병 환자 30명과 성별, 연령, 주치의의 예후에 대한 평가등을 1:1로 짝지워 총30쌍, 60명을 대상으로 낮병원 입원이 환자의 예후에 미치는 영향을 기준 퇴원후 2년간을 후향적 추적방법으로 비교 연구하였다. 결과는 다음과 같다. 1) 추적기간동안 양군의 사회인구학적인 변인은 통계적으로 의미있는 차이를 보이지 않았다. 사회인구학적 변인 중 기준 퇴원시 학력과 이전 입원횟수에서 유의한 차이를 보였다. 2) 재입원율, 재입원횟수, 재입원환자수, 누적재입원횟수, 누적재입원환자수 등의 일반 예후변인에서 통계적으로 유의한 차이가 없었다. 단지 낮병원군에서 기준 퇴원후 1년간의 재입원율이 통계적으로 유의하게 더 컸는데, 2년후 전체 재입원율에 있어서는 양군이 유사하였다. 3) 사회적응도에 있어 양군에서 유의한 차이를 발견할 수 없었다. 단지 낮병원군에서 재입원한 환자들 (n=6)의 경우 시간이 지남에 따라 사회적응정도가 향상하는 양상을 보였다. 또한 기존의 연구들에서 퇴원후 주로 6개월 내지 1년 이내에 입원에 의한 사회적응효과가 나타난다고 했으나 본 연구에서는 오히려 추적 기간의 후반부에 사회적응도가 향상하는 경향을 보여 저자들은 이점에 대해 낮병원에서의 사회적응훈련이 '후기 효과'를 보일 가능성에 대해서 토론하였다. 본 연구의 결과만으로 낮병원 치료가 정신분열병환자의 예후에 어떠한 영향을 미치는가에 대한 확실한 결론은 얻을 수 없었다. 그러나 유병기간이 더 길고 사회적응이 어렵다고 판단된 낮병원 환자들과 보호병동군을 비교한 결과 기준퇴원후 2년간 각 예후변인들이 유의한 차이가 없었던 것은 낮병원 치료가 만성 정신분열병 환자의 사회재적응에 장기적으로 도움이 되었기 때문이라고 추론할 후 있다. 향후 본 연구에서는 고려되지 못한 정신분열병의 예후에 관련이 있는 좀더 많은 변수들을 충분히 고려한 전향적 연구가 필요하다. A two year retrospective follow up analysis of outcome was done comparing 30 chronic schizophrenic patients discharged from standard in-patient hospital to day hospital treatment with 30 matched patients discharged directly to the community. The authors developed an 80 item interview questionnaire for sociodemographic characteristics, social functioning, family functioning, psychopathology and rehospitalization. Index numbers of rehospitalization within two years were six in day hospital group, and eight in the comparative group respectively. When the duration was divided into three month intervals, cumulative percentage of number of patients rehospitalized was lower in the day hospital group. Readmission rate calculated by rehospitalization days divided by total follow-up days was, however, higher significantly in the day hospital group within one year. It seemed that this result within one year was due to the bias of selection of day hospital patient. That is, the poorer prediction of community adjustment by the psychiatrist was related with the day hospital treatment. Social functioning score checked on the rehospitalized patients showed little difference between the two groups.

Farnesol의 입체선택적 합성

신동수,Dong-Soo Shin 대한화학회 1992 대한화학회지 Vol.36 No.4

5-Bromo-2-methylpent-2-ene(2)을 출발물질로하여 farnesol인 (2E, 6E)-3,7,11-trimethyldodeca-2,6,10-trien-1-ol(1)의 입체 선택적 합성을 수행하였다. 5-Bromo-2-methylpent-2-ene(2)을 요오드화시킨 후, 5-lithio-2,3-dihydrofuran과 반응시켜 5-(4-methylpent-3-enyl)-2,3-dihydrofuran(4)을 얻었다. Dihydrofuran 4를 MeMgI와 Ni(O)-촉매 짝지음 반응시켜 (3E)-4,8-dimethylnona-3,7-dien-1-ol(5)을 72%의 수율로 얻었다. 알릴알코올 5를 4단계로 거쳐 (5E)-6,10-dimethylundeca-5,9-dien-2-one(8)으로 변환시켰다. 화합물 8을 벤젠 용매하에서 dimethylmethoxycarbonylmethylphosponate와 반응시킨 다음, 에탄올 용매하에서 $NaBH_4$로 환원시켜서 (2E, 6E)-3,7,11-trimethyldodeca-2,6,10-tiren-1-ol(1)을 얻었다. Dihydrofuran 4와 MeMgI와의 Ni(O)-촉매 짝지음 반응이 본 연구의 farnsol(1)의 합성에서 중요한 단계이다. Stereoselective synthesis of farnesol, (2E, 6E)-3,7,11-trimethyldodeca-2,6,10-tiren-1-ol(1), was carried out using 5-bromo-2-methylpent-2-ene(2) as a starting material. After conversion of 5-bromo-2-methylpent-2-ene(2) to the corresponding iodide compound, 5-(4-methylpent-3-enyl)-2,3-dihydrofuran(4) was obtained by alkylation of 5-lithio-2,3-dihydrofuran with 5-iodo-2-methylpent-2-ene. Ni(0)-catalyzed coupling reaction of the dihydrofuran 4 with MeMgI was proceeded to give (3E)-4,8-dimethylnona-3,7-dien-1-ol(5) in 72% yield. The resultant homoallylic alcohol 5 was converted to the (5E)-6,10-dimethylundeca-5,9-dien-2-one(8) in 4 steps. Compound 8 was condensed with dimethylmethoxycarbonylmethylphosponate in benzene follwed by $NaBH_4$ reduction in EtOH to yield (2E, 6E)-3,7,11-trimethyldodeca-2,6,10-trien-1-ol(1). Ni(0)-catalyzed coupling reaction of MeMgI with dihydrofuran 4 was a key step in this synthesis of farnesol(1).

Effect of a Step Barrier on the Quantum-Confined Stark Effect and Applications to Electroabsorption Modulators with High Saturation Optical Power

신동수 한국물리학회 2005 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.47 No.1

The effect of a step barrier on the quantum-confined Stark effect (QCSE) is examined theoretically. We use a InGaAsP/InGaAsP quantum well (QW) as the basis structure and compare it with QWs having different step-barrier heights and widths. Since the step barrier delays the red shift of the QCSE when the electric field is applied from the well to the step barrier, QWs with step barriers can be used for high-optical-power operation. The reason behind the high-optical-power operation is that the high electric field facilitates the sweep-out of photogenerated carriers in the QW, thus reducing the charge screening effect. A wider step barrier is also shown to have an earlier onset of the red shift, thereby increasing the amount of red shift at a given field. Hence, the electroabsorption modulators with wider-step QWs can be used to increase the slope of the transfer curve and to reduce the residual absorption when a higher detuning energy is used.

十四經脈 중 '天'字 關聯 經穴에 대한 文獻的 考察

申東秀,李秉烈 대전대학교 한의학연구소 2002 한의학연구소 논문집 Vol.10 No.2

1.在十四經脈中"天"字的穴유天府,天鼎,天樞,天谿,天容,天宗,天柱,通天,天泉,天池,天井,天유,天膠,天衡,天突一共有十六個穴. 2.天字穴除了天樞穴外大部分都分布在天的意思的上方,上部,顚有關,由人體的上部來看,頭部有通天,天衡,天柱三穴,頸部有天鼎,天窓,天容 3穴,胸肋部有 天突,天谿,天池 3穴,肩部有天宗,天유,天膠3穴,上肢有天府,天泉,天井3穴. 3.在經穴中顯示出來"天"字穴的意思中'天'字大表的上部,上方.以此來看我們可以知道天府穴中的'府'字代表氣的聚集場所,天鼎穴中的'鼎'字代表特別的穴位外形,天樞穴中的'樞'字代表樞軸,天谿穴中的'谿'字代表氣的流通場所,天宗穴中的'宗'字代表集合,天窓穴中的'窓'字代表們窓或字是穴,天容穴中的'容'字代表容貌,通天穴中的'通'字代表疎通,天柱穴中的'柱'字代表?,天池穴中的'池'字代表氣的停留場所,天泉穴中的'泉'字代表氣的湧出場所,天井穴中的'井'字代表陷凹部位,天유穴中的'유'字代表骨間的陷凹部,天유穴中的'유'字代表窓,天衡穴中的'衡'字代表要衝或通,天突穴中的'突'字代表突起的意思. 4.這個穴位大部分都可以用灸法,可是對天府和天柱穴位的禁灸方法有文獻的差別所以我們要深刻的硏究. 5.'天'字穴在人體的上部竝且治療疏通天氣的心,肺有關的疾患.除此以外他的主治證是各穴包括的經絡臟腑疾患和經絡所流走部位的疾患,大腸疾患和頭部,頸項部,肩部,胸肋部等有關氣機不通的疾患.

고밀도 균일 안개스크린을 위한 에어로졸 유동의 최적 생성조건

신동수,송우석,김진원,김우진,구자예 한국분무공학회 2017 한국액체미립화학회지 Vol.22 No.1

The fog screen is a device projecting the media to the aerosol flow field. As major parameters to generate dense and steady fog screen, shear stress, optical blockage ratio and SMD were obtained result through experiment. The micro droplet was generated by the piezo oscillation element, and the aerosol flow mixed with an air flow was sprayed into the vertical direction from the top of the fog screen through the 280 mm slot. For produce a dense, uniform fog screen, the shear effect, optical blockage ratio and SMD between aerosol and air curtain were measured. The minimum and maximum shear stress conditions were selected and it was confirmed that the optical transmission deviation of the aerosol flow field was small when the aerosol and air curtain flow rates were changed. When the aerosol and air curtain flow power were 18 V (1.51 m/s) and 24 V (2.55 m/s), respectively, under the condition of the minimum shear stress and laminar flow, the optical blockage ratios with the spray length were small, and it produced a most stable and high density uniform fog screen by injecting a constant of 10 μm or less.