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김원,임경수,오병연,홍은석,김영식,김선만,이부수,현석천,김영득 대한응급의학회 2000 대한응급의학회지 Vol.11 No.4
Background: The initial history, physical examination, and ECG assessment should focus on identification of potentially serious noncardiac or cardiac disorders, including coronary artery disease, congestive heart failure, and electrical instability at the emergency room. additionally, it is essential to define disease severity, stability and need for emergency therapy. echocardiography is a useful tool for this purpose. especially Doppler echocardiography may be more sensitive and time-saving diagnostic tool for the evaluation of patients presenting with cardiogenic symptoms. So we evaluate the feasibility of the echocardiographic measurement by emergency physicain after short-term course. Method and Results: Twenty volunteers(10 male, 38.8±9.3 years) were included in the study for measurement of myocardial performance index and established parameters of ventricular function using conventional echo-Doppler methods. Myocardial performance index: (ICT+IRT)/ET, was obtained by subtracting ejection time(ET) from the interval between cessation and onset of the mitral inflow velocity to give the sum of isovolumic contraction time(ICT) and isovolumic relaxation time(IRT). The most of mean values of echocardiogrphic parameters were not significantly different between those of cardiologist and those of emergency physicians(p<0.01). The duration for measuring myocardial performance index was shortest among echocardiographic parameters. the validity of echocardiographic parameters measured by emergency physicians was proved relatively good. Conclusion: It is proved to be feasible for emergency physician to perform echocardiographic evaluation of ventricular function after short-term course
김동찬,김영준,마원,김충희,노경식,이가영 경희대학교 부설 디자인연구원 2008 예술· 디자인학연구 Vol.11 No.1
Kyung-Hee University Global Campus accepted changing of education environment to adapt to the World's information technology society so that school has been preparing the Master plan to grow up campus's vision since 2007. However, realization of the Master plan need a lot of financial resources, much times and phases in improvement. Especially, our university needs symbolized business in 2009 due to the 60th anniversary of our university. Based on this we want to improve the main entrance road environment from school gate to the school of international management and reconstruct the spatial environment beside the main road. The purpose of this research is to construct a pedestrian space environment and reconstruct the campus environment which adapt to the new times' demands. That is why the Master plan is trying to find the landscape scenic which adapts to our school' s main entrance space and the improvement method about the pedestrian space of the Global campus to congratulate of our university's 60th anniversary.
Kim, Dong Sik,SEO, Sung Mo,PAIK, Young Hyun,LEE, Won Pyo 대한금속재료학회(대한금속학회) 1996 METALS AND MATERIALS International Vol.2 No.2
Study on the interfacial properties of SUS304 melt in contact with pedestal oxides and also liquid slugs of varying chemistry was carried out by using a combination of the sessile drop method and a X-ray fluoroscopic technique at 1470℃. Interfacial tension and contact angle were obtained directly from a numerical solution of the Young-Laplace equation. Surface tension of SUS304 was found to be 1467 mN/m in Ar-atmosphere which was considerably lower than that of pure iron. This may be due to the existence of surface active elements such as Cr, Ni and Mn etc. in SUS304. Interfacial tensions of SUS304 in contact with CaO-SiO₂-Al₂O₃(CaF₂) slugs were in the range of 925 to 1148 mN/m. The contact angle between SUS304 and various pedestal was about 120° regardless of pedestal oxides, Al₂O₃, TiO₂ and SiO₂. Contact angles between SUS304 and the pedestal alumina coexisting with liquid CaO-SiO₂-Al₂O₃(CaF₂) were in the range of 125° to 142°.
人 諸臟器 Alkaline Phosphatase Isoenzyme의 電氣泳動 및 定量
金在植,金京善,金重明,金榮泰,蔣卓仙,李鉉基 慶北大學校 醫科大學 1980 慶北醫大誌 Vol.21 No.2
著者들은 家兎와 人體로부터 採取한 血淸과 諸臟器組織을 使用하여 ALPI 電氣泳動像을 觀察하고 生化學的 定量法을 利用하여 ALP의 活性度를 測定試圖하였으며 臟器特異性 沮害因子에 對한 影響을 觀察하였다. 家兎 血淸 및 諸臟器組織 ALPI電氣泳動에서 血淸은 ±의 活性度를 가진 α2와 α2/β分劃을 나타내었으며 肝組纖은 血淸보다 빠른 移動度를 가진 ??의 α_1과 α_2分劃을 나타내었다. 그리고 肝, 骨, 腎 淋巴腺, 脾臟 및 腸組織에서는 顯著하게 높은 活性度를 나타내는 各各 서로 相異한 分劃을 볼 수 있었으며 人體諸 臟器와大體로 類似하였으나 家兎 血淸의 ALP는 사람에서 와는 다르게 肝組織의 分劃과 一致하지 않고 오히려 骨組織과 더 잘 一致되는 것 같았다. ALPI 活性度에 있어서 家兎의 諸臟器는 生化學的 定量法으로 腎 ALP의 活性度가 49.5B.L. units로 다른 臟器組織에 비하여 顯著하게 높았으며, 그 다음은 脾臟, 脊椎骨, 肝, 肺淋巴腺 및 脾 順으로 높은 活性度를 나타내었으며 人體에 있어서는 胎盤, 骨, 小賜, 脾臟, 肝 및 腎臟의 順으로 높았다. 臟器 特異性 沮害因子에 對한 影響에 있어서 胎盤分劃은 特有하게 耐熱性을 나타내었고 보다 urea低抗性이며 肝分劃은 neuraminidase에 對하여 移動度의 遲延을 招來하였다. The studies upon cellulose acetate microzone electrophoretic patterns, quantitative estimation and effects of organspecific inhibitor on ALP isoenzyme of rabbit and human sera and various organ tissues were performed. On electrophoretic pattern the tissue ALP from the liver bone kidney lymph node spleen and intestine showed the characteristic fraction of high activities. The electrophoretic mobility of rabbit serum ALP was not correspond to the liver ALP as observed in human serum and it appeared to be rather corresponded to the bone ALP, which seemed to be the origin of ALP in serum of rabbit. In the quantitative measurement of tissue ALP activity the kidney ALP showed the highest level and the activity of the skeletal muscle ALP was the lowest(1.5 B. L. units), while higher activities were observable in placenta, bone, intestine, spleen, liver and kidney in order. On the effect of organ specific physico chemical agents the placental ALPI was highly stable to the heat and relatively resistant to urea while other organ ALPI were on the contrary. The neuraminidase seemed to effect to the motility of liver fraction.
Prices, Qualities, and Costly Information in a Search Model of Money
Kim, Young Sik 서울大學校 經濟硏究所 2005 經濟論集 Vol.44 No.3-4
This paper examines the implications of costly information for prices and qualities in a search model of money. Agents can acquire an inspection technology at a cost where incurring a higher cost permits quality to be recognized with higher probability. First, in contrast to the exogenous information structure, the equilibrium without lemons no longer exists. Second, in the constrained equilibrium where uninformed buyers get a zero net surplus from trade, average quality of output increases with the money stock since buyers choose to be better informed as the money stock increases. The price dispersion in terms of the premium for known quality increases with the money stock. As for the effects of inflation, buyers become better informed with inflation, which implies the larger premium for the known quality. In the constrained equilibrium, higher average quality and lower price of known quality with a positive inflation imply higher welfare relative to a zero inflation.
Synthesis and photophysical study of heteroleptic iridium(III) complex
Kim, Jun Ho,Kim, Young Sik Research Institute of Science and Technology HONGI 2005 Hongik Journal of Science and Technology Vol.9 No.-
The synthesis and photophysical study of efficient phosphorescent iridium(III) complexes having two different (CˆN) ligands are reported. In order to improve the luminescence efficiency by avoiding triplettriplet (T-T) annihilation, the iridium complex, Ir(ppy)_(2)(dpq), is designed and prepared where ppy and dpq represent 2-phenylpyridine and 2,4-diphenylquinoline, respectively. Two ppy ligands and a dpq ligand act as a source of energy supply. Since Ir(ppy)_(3) and Ir(dpq)_(3)can be placed in the metal-to-ligand charge transfer (MLCT) excited state, they absorb light effectively. When Ir(ppy)_(2)(dpq) is placed in excited state, the excitation energy is not quenched or deactivated but quickly intramolecular transferred from two ppy ligands to one luminescent dpq ligand. This is because the triplet energy level of ppy is higher than that of dpq and light is emitted from dpq ligand in the end. Thus, Ir(ppy)_(2)(dpq) shows strong photoluminescence from dpq ligand. To analyze luminescent mechanism, we calculated these complexes having two different ligand sets theoretically by using computational method.
김곤호,김건우,김영우,최영도,김종식,김상진,한승희,홍문표 漢陽大學校 工學技術硏究所 1998 工學技術論文集 Vol.7 No.1
Abstract- In a plasma source ion implantation, the target is successively biased by negative voltage pulses with an intrinsic finite rise time, resulting in the time-dependent sheath formation around the target. Measurement of time-dependent sheath during the pulse rise show the ion matrix sheath development which is in proportion to square root of time and pulse rise rate over plasma density but independent of the ion mass.