Tool을 이용한 요구 명세서 작성

신재선,이성주 조선대학교 기초과학연구소 1988 自然科學硏究 Vol.11 No.1

Jae Seon Shin Sung Joo Lee This thesis describes an approach to requirements specification in which different aspects of requirements specification are expressed using multiple models. This thesis also describes an interactive software tool named Model-Box, Which supports the construction and analysis of requirements models via textual and graphical representations. Model-Box allows users to define appropriate new models for the aspects they want to describe, without restriction to a single modeling methodology.

Photonic Crystals: Integration of Colloidal Photonic Crystals toward Miniaturized Spectrometers (Adv. Mater. 9/2010)

Kim, Shin-Hyun,Park, Hyo Sung,Choi, Jae Hoon,Shim, Jae Won,Yang, Seung-Man WILEY-VCH Verlag 2010 Advanced materials Vol.22 No.9

<B>Graphic Abstract</B> <P>The cover shows a schematic illustration of patterned colloidal photonic crystals with different bandgap positions. When an unknown light source impinges on the patterned photonic crystals, the light information can be identified from the reflection intensity profile of the constituent photonic crystals. The two optical microscopy images and background image display integrated photonic crystals with 20 different bandgaps spanning the entire visible range, and the SEM image shows the cross-section of the photonic crystal stripes, as reported by Shin-Hyun Kim, Seung-Man Yang, and co-workers on p. 946. <img src='wiley_img_2010/09359648-2010-22-9-ADMA201090022-content.gif' alt='wiley_img_2010/09359648-2010-22-9-ADMA201090022-content'> </P>

지역사회 거주 저소득층 노인의 우울증상 유병률과 관련인자

신희영,이훈,신일선,김재민,김성완,양수진,윤진상 大韓神經精神醫學會 2005 신경정신의학 Vol.44 No.5

Objectives : This study aimed to investigate the prevalence and correlates of depressive symptoms in community-dwelling low income elderly. Methods : A community survey of 1,351 low income residents aged 65 or over was conducted in Buk district of Gwangju, Korea. Depressive symptom was evaluated by the Korean Form of the Geriatric Depression Scale (KGDS). Their Sociodemographic factors, the precence of chronic physical illness, and cognitive functions were investigated. Results : The prevalence rate of depressive symptoms was 69.8%. In multiple logistic regression, chronic physical illness (Odds Ratio : 2.68, 95% Confidence Interval : 1.98-3.63), low education (Odds Ratio : 1.84, 95% Confidence Interval : 1.39-2.43), and cognitive impairment (Odds Ratio : 1.61, 95% Confidence Interval : 1.20-2.16) were independently associated with depressive symptoms. Conclusion : Depressive symptoms in community-dwelling low income elderly were very common, particularly related to current chronic physical illnesses. The results of this study can be useful for the development of community-based prevention and management programs for depression. Of elderleg.

지역사회 거주 노인에서 장애 변화의 예측인자

신희영,신일선,김재민,김성완,양수진,윤진상 대한신경정신의학회 2008 신경정신의학 Vol.47 No.2

Objectives : This study aimed to identify the predictors for change in disability measured by the Korean version of World Health Organization Disability Assessment Schedule II (WHODAS II-K) m community-dwelling elderly population. Methods : Of 1204 community participants aged 65 years or over, 717 were reevaluated by WHODAS II-K 2 years later. At baseline, information on demographic characteristics (age, gender, living area, marital status, and religion), socioeconomic status (education, type of accommodation, number of rooms, previous occupation, current employment, and social network), and clinical characteristics (number of physical illness, depression by the Korean version of Geriatric Mental State Schedule B3, and cognitive impairment by Korean version of Mini-Mental State Examination) were collected. Results : Scores on the WHODAS II-K increased by 17.5 in 2 years. Age (B coefficient 0.52, 95% CI : 0.21~0.84), number of rooms (B coefficient -1.92, 95% CI : -3.53~-0.30), and depression (B coefficient 1.84, 95% CI : 0.43~3.25) were independently significant predictors for change in disability. Conclusion : Change in the level of disability measured by the WHODAS II-K was mainly affected by age, number of rooms, and depression. These results can be useful for the development of community-based health promotion program for the elderly.

Low doses of ionizing radiation suppress doxorubicin-induced senescence-like phenotypes by activation of ERK1/2 and suppression of p38 kinase in MCF7 human breast cancer cells

신재식,우상혁,이형찬,홍승우,유두현,홍석일,이왕재,이명석,진영우,안성관,진동훈,박인철 Sookmyung Women's University Research Institute of 2010 여성과 건강 Vol.6 No.1

Soda 유리에 있어서 鐵이온의 Mössbauer效果

신영남,박성배,김재경,오재환 대구대학교 산업기술연구소 1984 産業技術硏究 Vol.3 No.-

Mössbauer studies of a large number of glass samples prepared with alkali oxides in the region of glass formation are reported. In this study amorphous soda glasses were prepared with 4 mole% of ferric oxide as impurity. Mössbauer parameters and the valance state of iron in soda glasses were studied by Mössbauer spectra. X Na₂O·(100-X)B₂O₃·4Fe₂O₃ where X=10, 20 or 30 mole%, were prepared, and 10 A₂O·90 B₂O₃·4 Fe₂O₃ where A=Li, Na or K mole% were prepared for the study of the change with the ionic radii of alkali glasses. Mixtures were melted in air atmosphere in furnance at 900℃ for two hours. Mössbauer absorption measurements have been at room temperature. The γ-ray source is 3 mCi Co^(57) doped in Pd. In soda glasses isomer shift and quadrupole splitting were decreased according to increasing of X component and line width was increased. Isomer shift was increased, but quadrupole splitting and line width were decreased along the Li-Na-K series.

적혈구 유무에 따른 벤젠, 스티렌, 트리클로로에틸렌에 의한 림프구 중 자매염색분체 교환 빈도

성재혁,김형아,신민정,최미정,이세훈 가톨릭대학교 산업의학센터 2001 韓國의 産業醫學 Vol.40 No.4

This study was performed to investigate the possible role of oxyhemoglobin in the metabolic activation of benzene, styrene and TCE by observing the difference of the SCE frequency between isolated lymphocyte and whole blood lymphocyte cultures exposed to these chemicals. Isolated lymphocyte and fresh heparinized peripheral whole blood samples from a healthy donor(male, smoker) were cultured in the phytohaemagglutinin stimulated culture media for 72 hours. The cells were treated with 100, 300, 1000, 3000 μM benzene, 250, 500, 100, 2000 μM styrene or TCE respectively. Slides were stained with Giemsa's solution for SCE. SCE was analyzed for each subject from coded slides by one researcher. The results were as follows : 1.The frequency of SCE increased dose-dependently with concentration of benzene in isolated lymphocyte and whole blood lymphocyte cultures, however there were no significance. There was no significant difference of SCE frequency between isolated lymphocyte and whole blood lymphocyte cultures. 2.The frequency of SCE in whole blood exposed to sytrene significantly increased in dose-dependant relationship, but not in isolated lymphocyte. The difference of SCE frequency between isolated lymphocyte and whole blood lymphocyte of 2000μM styrene exposure was marginally significant(P=0.0540). 3.In TCE, the frequency of SCE did not increase at any concentration used in this study of isolated lymphocyte and whole blood lymphocyte. Above results suggested that oxyhemoglobin in erythrocytes play an important role in the metabolic activation of styrene but not in benzene or TCE. Key Words : Benzene, Styrene, Trichloroethylene, Sister chromatid exchange, Metabolic activation, Oxyhemoglobin

시동전동기의 기동소음 평가기법에 관한 실험적 연구

신영재,강성황 安東大學 1994 安東大學 論文集 Vol.16 No.1

Noise and its effect on quality has recently become an important issue in the area of the starting motor cranking sound. This study has determined the algorithm of cranking sound evaluation for starting motor. Traditional noise analysis techniques did notcoonsistently correlate with subjective jury rating of the cranking sound. As a result, an algorithm based on time domain microphone output was developed to correlate objective measurements of cranking sound to subjective jury ratings. The algorithm contains three parameters to describe the cranking sound, and good correlation between the two ratings has been observed. When jury test results has been inconclusive, the algorithm has proven helpful in evaluating incremental design changes to current starting motor specification.

비대칭 사장교의 정적 및 시공 단계 해석

신재철,남기수,정인수,한성호 충남대학교 산업기술연구소 2001 산업기술연구논문집 Vol.16 No.1

The cable-stayed bridges are composed of cables, towers and girders. when the cable-stayed bridges are loaded, the whole structure display very complex behavior due to excessive cable deflection. Eventhough the material in the members of a cable-stayed bridge structure behaviors in a linear elastic manner. the overall load-displacement relationship for the structure will be nonlinear. The nonlinear behavior is a result of: due to the sag caused by their own dead weight and the nonlinear axial and bending force-deformation relationships for the bend members. In the construction stage analysis, some technical approaches and structure safety are needed to stimulate numerically the complicated changes of structural system during construction. In this study static and construction stage analysis is performed and compared. Static and construction stage analysis on unsymmetric Cable-stayed bridge is performed and linear and nonlinear analysis is performed to evaluate the structure characteristics. After Static analysis of final construction stage was performed, construction stage analysis was performed.

실험적 부자 시신경병증에서 Methylprednisolone의 효능

신재필,이상희,서형덕,김인택 경북대학교 병원 1998 경북대학교병원의학연구소논문집 Vol.2 No.1

동물실험에서 aconite 또는 aconitine은 신경계통에 독성을 나타낸다고 이미 알려져 있다. 그러한 독성은 시유발전위와 병리조직에서 탈수초증으로 나타난다. 저자들은 실험적으로 aconite을 주입하여 탈수초신경증을 일으킨 후 고용량이 methylprednisolone(MP)투여가 효능이 있는지를 알아보고자 하였다. Aconite를 복강내 주입하고 곧 이어 가토의 이연정맥으로 MP를 주입한 군과 aconite만을 주입한 군으로 나누었고 이들을 서로 비교하였다. 그리고 이 두 군을 정상군과도 비교하였다. 시유발전위에서 aconite를 주입후 MP를 투여한 군에서 aconite만을 주입한 군에 비하여 onset latency와 peak latency 그리고 진폭 모두에서 2주째에 통계학적으로 의미있게 회복되었으나 (p<0.05) 정상군과 비교하여 의미있는 차이를 나타내지 아니하였다. 그러나 정상군과 비교하여 1개월과 2개월에서 onset latency은 의미있게 지연되었고 (p<0.05) peak latency와 진폭은 다소 회복되었으나 정상군의 평균값에는 미치지 못하였다. 병리조직에서 MP으로 치료한 군과 aconite만을 주입한 군 모두에서 수초의 탈수초변화가 관찰되었으나 MP으로 치료한 군은 상대적으로 탈수초변화가 현저하지 아니하였다. 본 연구에서 실험적으로 가토에 aconite를 전신에 투여하여 시신경병증을 일으킨 후 고용량의 MP를 즉시 투여한 경우에 시신경의 기능을 정상상태까지 회복시키는데는 한계가 있으나 부분적으로 시신경의 기능을 회복시키는데 도움이 될 것으로 생각된다(한안지 37:1730~1740, 1996). Studies in animals indicate that aconitine or aconite has toxic effects in the visual system of a rabbit model. Such a toxic effects causes myelo-optic neuropathy in the visually evoked cortical potential(VECP) and histopathologic studies. Whether the administration of intravenous high-does of methyprednisolone(MP) in the myelo-optic neuropathy caused by aconitine(1.5㎖/㎏, equivalent to 0.7㎎/㎏ of aconitine) is experimentally effective remains uncertain. The group treated with MP(daily 30㎎/㎏×2 for 3 days followed by 15㎎/㎏ for 3 days) in addition to aconite was compared with the aconite alone group and the normal control group. In the MP treated group, increased recovery of onset latency, peak latency, and amplitude in VECP in comparision with the aconite alone group was recorded at 2 weeks(p<0.05). The MP treated group in comparision with the normal control group showed a significant delay in onset latency at 1 month and 2 months(p<0.05). But, the amplitude in both the MP treated group and the aconite alone group increased at 2 months and did not show a significant difference in comparision with the normal group(p<0.05). In histopathologic study, pathologic findings of myelin sheath in the MP treated group were less severe than in the aconite alone group generally. The true benefit of high-does MP was at least clear within 2 weeks. The authors conclude that treatment with intravenous high-does MP immediate after aconite injection may have some beneficial effects in recovery of neurologic function although such a treatment do no have the definite recovery in aconite induced myelo-optic neuropathy(J Korean Ophthalmol Soc 37:1730~1740, 1996).