• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2018년도 학술발표회
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• pp.156-156
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• 2018

The subbasin spatial scale can affect a hydrological simulation result. The objective of this study was to investigate an appropriate subbasin spatial scale for reproducing the different flow phases with the Soil and Water Assessment Tool (SWAT). Moreover, this study addressed the total hydrologic model uncertainty using the Generalized Likelihood Uncertainty Estimation (GLUE) method. The hydrologic modelling uncertainty analysis revealed that the courser subbasin spatial scale provided a relatively better coverage of most of the observations by the 95PPU. On the other hand, the finer subbasin spatial scale produced the best single simulation output closer to the observation. Moreover, most of the observed high flows were enveloped by the 95PPU while this did not happen for the low flows. The overall average performance improvement through an appropriate subbasin spatial scale for reproducing the different flow phases in the Yongdam and Gilgelabay watersheds were found to be 36% and 53%, respectively. It is, therefore, a worth that to put more effort in reproducing the different flow phases by investigating an appropriate subbasin spatial scale to improve our understanding about the frequency and magnitude of the different flow phases.

• The Korean Journal of Pain
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• 제7권1호
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• pp.78-83
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• 1994

수술후 통증치료에 morphine과 buprenorphine의 효과를 알아보기 위하여 morphine과 buprenorphinec을 단독 투여하거나(1, 2군) buprenorphine과 ketorolac을 반량씩 혼합하여 지속적으로 정주(3군)하여 다음과 같은 결과를 얻었다. 1) 각군에서 모두 혈압과 맥박의 의의있는 변화는 초래하지 않았다. 2) Visual analogue scale으로 평가한 진통 발현은 각군에서 모두 비슷하였다. 3) Visual analogue scale과 Prince Henry Scale로 평가한 진통효과는 morphine군에서 가장 우수하였고, buprenorphine군과 buprenorphine+ketorolac의 반량 투여군에서는 비슷하였다. 4) 부작용의 발생은 1군과 2군에서 비슷하였으나 3군에서 가장 낮았다. 이상의 결과로 보아 지속적 정주에 의한 술후 통증의 억제에 있어서 buprenorphine은 morphine을 대치할 수는 있으나 morphine보다 우수하지는 못한 것으로 사료되며, buprenorphine 사용시는 ketorolac을 병용하여 사용량을 줄염으로써 부작용을 줄일 수 있을 것으로 사료된다.

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2008년도 춘계학술대회 논문집
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• pp.138-141
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• 2008

The effects of design parameters for small scale hydro power(SSHP) plants due to rainfall condition have been studied. The model to predict hydrologic performance for SSHP plants is used in this study. The results from analysis for rainfall conditions based on Weibull distribution show that the capacity and load factor of SSHP site had large difference between the variation of shape and scale parameter. Especially, the hydrologic performance of SSHP site due to variation of shape parameter varied more sensitive than the case of variation of scale parameter. And also, the methodology represented in this study can be used to decide the primary design specifications of SSHP sites.

• Journal of applied mathematics & informatics
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• 제26권5_6호
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• pp.1191-1205
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• 2008

We consider a delayed predator prey model. The local stability and Hopf bifurcation results are stated taking the time delay as a control parameter. We apply multiple scale analysis to analyze the effects of additive white noises near the Hopf bifurcation point at the positive interior equilibrium state. The governing equations for the amplitude of oscillations on a slow time scale are derived. We identify the process of amplitude of oscillations and derive its transient properties. We show that oscillations, which would decay in the deterministic system whenever time delay lies below its critical value, persists for long time under the validity of multiple scale analysis.

• 동의신경정신과학회지
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• 제13권2호
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• pp.101-106
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• 2002

Objectives : The degree of post-stroke depression was observed and then correlated to the recovery rate of the motor functions of the above treated stroke patients. Methods : The BDI SCALE(Beck Depression Inventory Scale) and motor grades of 50 diagnosed stroke patients who were hospitalized in Dong-Seo Oriental Hospital between the period of May 2002 to September 2002 were measured. After a 1 month recovery period the BDI SCALE and motor grade of the above mentioned patients were again measured and a correlation was observed. Results : A lower BDI SCALE was observed in patients with a higher motor grade recovery rate. Conclusion : The treatment of post-stroke depression is imperative for positive effects on the motor functions of stroke patients.

• 동의신경정신과학회지
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• 제23권4호
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• pp.199-214
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• 2012

Objectives : The purpose of this study is to evaluate the effects of Daeyeongjeongami-bang on menopausal disorder patients. Methods : We recruited 3 menopausal disorder patients who have been suffering from hot flush, fatigue and depression. In addition, the patients had been administrated Daeyeongjeongami-bang. The patients of menopausal disorder had been estimated with Kupperman's index, Menopause rating scale, Beck's depression Inventory, Self rating depression scale, Visual analogue scale and Heart rate variability. We measured Kupperman's index, Menopause rating scale, Beck's depression inventory and Self rating depression scale for every seven days. Heart rate variability was estimated twice, before and after the treatment. Results : After the treatments, symptoms of menopausal disorder were decreased. Conclusions : This study suggests that Daeyeongjeongami-bang is significantly effective on menopausal disorder patients with hot flush, fatigue and depression.

• 신재생에너지
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• 제4권3호
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• pp.15-22
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• 2008

The effects of design parameters for small scale hydro power (SSHP) plants due to rainfall condition have been studied. The model to predict hydrologic performance for SSHP plants is used in this study. The results from analysis for rainfall conditions based on Weibull distribution show that the capacity and load factor of SSHP site had large difference between the variation of shape and scale parameter. Especially, the hydrologic performance of SSHP site due to variation of shape parameter varied more sensitive than the case of variation of scale parameter. And also, the methodology represented in this study can be used to decide the primary design specifications of SSHP sites.

• Advances in nano research
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• 제8권4호
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• pp.283-292
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• 2020

In the present research, differential quadrature (DQ) method has been utilized for investigating free vibrations of porous functionally graded (FG) micro/nano beams in thermal environments. The exact location of neutral axis in FG material has been assumed where the material properties are described via porosity-dependent power-law functions. A scale factor related to couple stresses has been employed for describing size effect. The formulation of scale-dependent beam has been presented based upon a refined beam theory needless of shear correction factors. The governing equations and the associated boundary conditions have been established via Hamilton's rule and then they are solved implementing DQ method. Several graphs are provided which emphasis on the role of porosity dispersion type, porosity volume, temperature variation, scale factor and FG material index on free vibrational behavior of small scale beams.

• 아동학회지
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• 제18권1호
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• pp.39-52
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• 1997

This study focused on factors influencing Internal and external problem (depression and antisocial) behavior among late-elementary children. Subjects were 481 boys and girls enrolled in the fourth. fifth. and sixth grades of public school. The contribution of grade. sex. stress, self-esteem. and social support from parents, teachers, and friends as well as school performance were studied. The instruments were the Adolescent Perceived Events Scale, the Self-Esteem Scale, the Social Support Scale for Children, the Revised Korean Version of the Center for Epidemiologic Studies' Depression Scale and Antisocial Behavior Scale. Results indicated that sex, stress, self-esteem, and the support of parents, teachers and friends reduced the level of depression. Grade, sex, stress, self-esteem, and teachers' support were related to the level of antisocial behavior. The results were discussed in terms of the effects of stress, personal and social resources, and school achievement on depression and antisocial behavior.

• Environmental Sciences Bulletin of The Korean Environmental Sciences Society
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• 제1권1호
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• pp.45-50
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• 1997

Understanding the nonlinear flow caused by orographic effects can be valuable in siting of new businesses, industries, and transportation facilities. In spite of recent work on large-amplitude waves and wave breaking, the studies of flow around large scale mountains have just begun. The generative mechanism of lee vortices in the lee of large scale mountain is investigated by Ertel's theorem. The CSU RAMS is used as a numerical model. According to the numerical results, the isentropes are depressed behind the large scale mountains. This means the vortex lines must run upward and downward along the depression surface because vortex lines adhere to isentropic surfaces. Therefore, the vertically oriented vorticity can be formed in the lee of the large scale mountain. This vorticity plays an important role for orographic precipitation, because strong vertical velocity and cloud bands are developed along isothermal deformation surface.